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  • 1
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    Autism-like behaviours and germline transmission in transgenic monkeys overexpressing MeCP2 (2016)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2016-01-26
    Description: Methyl-CpG binding protein 2 (MeCP2) has crucial roles in transcriptional regulation and microRNA processing. Mutations in the MECP2 gene are found in 90% of patients with Rett syndrome, a severe developmental disorder with autistic phenotypes. Duplications of MECP2-containing genomic segments cause the MECP2 duplication syndrome, which shares core symptoms with autism spectrum disorders. Although Mecp2-null mice recapitulate most developmental and behavioural defects seen in patients with Rett syndrome, it has been difficult to identify autism-like behaviours in the mouse model of MeCP2 overexpression. Here we report that lentivirus-based transgenic cynomolgus monkeys (Macaca fascicularis) expressing human MeCP2 in the brain exhibit autism-like behaviours and show germline transmission of the transgene. Expression of the MECP2 transgene was confirmed by western blotting and immunostaining of brain tissues of transgenic monkeys. Genomic integration sites of the transgenes were characterized by a deep-sequencing-based method. As compared to wild-type monkeys, MECP2 transgenic monkeys exhibited a higher frequency of repetitive circular locomotion and increased stress responses, as measured by the threat-related anxiety and defensive test. The transgenic monkeys showed less interaction with wild-type monkeys within the same group, and also a reduced interaction time when paired with other transgenic monkeys in social interaction tests. The cognitive functions of the transgenic monkeys were largely normal in the Wisconsin general test apparatus, although some showed signs of stereotypic cognitive behaviours. Notably, we succeeded in generating five F1 offspring of MECP2 transgenic monkeys by intracytoplasmic sperm injection with sperm from one F0 transgenic monkey, showing germline transmission and Mendelian segregation of several MECP2 transgenes in the F1 progeny. Moreover, F1 transgenic monkeys also showed reduced social interactions when tested in pairs, as compared to wild-type monkeys of similar age. Together, these results indicate the feasibility and reliability of using genetically engineered non-human primates to study brain disorders.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Liu, Zhen -- Li, Xiao -- Zhang, Jun-Tao -- Cai, Yi-Jun -- Cheng, Tian-Lin -- Cheng, Cheng -- Wang, Yan -- Zhang, Chen-Chen -- Nie, Yan-Hong -- Chen, Zhi-Fang -- Bian, Wen-Jie -- Zhang, Ling -- Xiao, Jianqiu -- Lu, Bin -- Zhang, Yue-Fang -- Zhang, Xiao-Di -- Sang, Xiao -- Wu, Jia-Jia -- Xu, Xiu -- Xiong, Zhi-Qi -- Zhang, Feng -- Yu, Xiang -- Gong, Neng -- Zhou, Wen-Hao -- Sun, Qiang -- Qiu, Zilong -- England -- Nature. 2016 Feb 4;530(7588):98-102. doi: 10.1038/nature16533. Epub 2016 Jan 25.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Neuroscience, CAS Key Laboratory of Primate Neurobiology, State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 320 Yue-Yang Road, Shanghai 200031, China. ; State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center of Genetics and Development, School of Life Sciences, Fudan University, Shanghai 200438, China. ; Department of Child Healthcare, Children's Hospital of Fudan University, Shanghai 201102, China. ; Department of Neonatology, Children's Hospital of Fudan University, Shanghai 201102, China.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26808898" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Genetically Modified ; Anxiety/genetics/psychology ; Autistic Disorder/*genetics/metabolism/physiopathology/*psychology ; Brain/metabolism ; Cognition/physiology ; *Disease Models, Animal ; Female ; Germ-Line Mutation/*genetics ; Heredity/*genetics ; Humans ; Locomotion/genetics/physiology ; Macaca fascicularis ; Male ; Methyl-CpG-Binding Protein 2/*genetics/*metabolism ; Phenotype ; Social Behavior ; Sperm Injections, Intracytoplasmic ; Transgenes/genetics
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 2
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    Engineered CRISPR-Cas9 nucleases with altered PAM specificities (2015)
    Nature Publishing Group (NPG)
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    Publication Date: 2015-06-23
    Description: Although CRISPR-Cas9 nucleases are widely used for genome editing, the range of sequences that Cas9 can recognize is constrained by the need for a specific protospacer adjacent motif (PAM). As a result, it can often be difficult to target double-stranded breaks (DSBs) with the precision that is necessary for various genome-editing applications. The ability to engineer Cas9 derivatives with purposefully altered PAM specificities would address this limitation. Here we show that the commonly used Streptococcus pyogenes Cas9 (SpCas9) can be modified to recognize alternative PAM sequences using structural information, bacterial selection-based directed evolution, and combinatorial design. These altered PAM specificity variants enable robust editing of endogenous gene sites in zebrafish and human cells not currently targetable by wild-type SpCas9, and their genome-wide specificities are comparable to wild-type SpCas9 as judged by GUIDE-seq analysis. In addition, we identify and characterize another SpCas9 variant that exhibits improved specificity in human cells, possessing better discrimination against off-target sites with non-canonical NAG and NGA PAMs and/or mismatched spacers. We also find that two smaller-size Cas9 orthologues, Streptococcus thermophilus Cas9 (St1Cas9) and Staphylococcus aureus Cas9 (SaCas9), function efficiently in the bacterial selection systems and in human cells, suggesting that our engineering strategies could be extended to Cas9s from other species. Our findings provide broadly useful SpCas9 variants and, more importantly, establish the feasibility of engineering a wide range of Cas9s with altered and improved PAM specificities.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4540238/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4540238/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kleinstiver, Benjamin P -- Prew, Michelle S -- Tsai, Shengdar Q -- Topkar, Ved V -- Nguyen, Nhu T -- Zheng, Zongli -- Gonzales, Andrew P W -- Li, Zhuyun -- Peterson, Randall T -- Yeh, Jing-Ruey Joanna -- Aryee, Martin J -- Joung, J Keith -- DP1 GM105378/DP/NCCDPHP CDC HHS/ -- DP1 GM105378/GM/NIGMS NIH HHS/ -- R01 GM088040/GM/NIGMS NIH HHS/ -- R01 GM107427/GM/NIGMS NIH HHS/ -- England -- Nature. 2015 Jul 23;523(7561):481-5. doi: 10.1038/nature14592. Epub 2015 Jun 22.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉1] Molecular Pathology Unit &Center for Cancer Research, Massachusetts General Hospital, Charlestown, Massachusetts 02129, USA [2] Center for Computational and Integrative Biology, Massachusetts General Hospital, Charlestown, Massachusetts 02129, USA [3] Department of Pathology, Harvard Medical School, Boston, Massachusetts 02115, USA. ; 1] Molecular Pathology Unit &Center for Cancer Research, Massachusetts General Hospital, Charlestown, Massachusetts 02129, USA [2] Center for Computational and Integrative Biology, Massachusetts General Hospital, Charlestown, Massachusetts 02129, USA. ; 1] Molecular Pathology Unit &Center for Cancer Research, Massachusetts General Hospital, Charlestown, Massachusetts 02129, USA [2] Department of Pathology, Harvard Medical School, Boston, Massachusetts 02115, USA [3] Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm SE-171 77, Sweden. ; 1] Cardiovascular Research Center, Massachusetts General Hospital, Charlestown, Massachusetts 02129, USA [2] Department of Systems Biology, Harvard Medical School, Boston, Massachusetts 02115, USA [3] Broad Institute, Cambridge, Massachusetts 02142, USA. ; Cardiovascular Research Center, Massachusetts General Hospital, Charlestown, Massachusetts 02129, USA. ; 1] Cardiovascular Research Center, Massachusetts General Hospital, Charlestown, Massachusetts 02129, USA [2] Department of Medicine, Harvard Medical School, Boston, Massachusetts 02115, USA. ; 1] Molecular Pathology Unit &Center for Cancer Research, Massachusetts General Hospital, Charlestown, Massachusetts 02129, USA [2] Department of Pathology, Harvard Medical School, Boston, Massachusetts 02115, USA [3] Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, Massachusetts 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26098369" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Substitution/genetics ; Animals ; CRISPR-Associated Proteins/*genetics/*metabolism ; CRISPR-Cas Systems ; Cell Line ; Clustered Regularly Interspaced Short Palindromic Repeats/*genetics ; Directed Molecular Evolution ; Genome/genetics ; Humans ; Mutation/genetics ; *Nucleotide Motifs ; Protein Engineering/*methods ; Staphylococcus aureus/enzymology ; Streptococcus pyogenes/*enzymology ; Streptococcus thermophilus/enzymology ; Substrate Specificity/genetics ; Zebrafish/embryology/genetics
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 3
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    Reversal of phenotypes in MECP2 duplication mice using genetic rescue or antisense oligonucleotides (2015)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2015-11-26
    Description: Copy number variations have been frequently associated with developmental delay, intellectual disability and autism spectrum disorders. MECP2 duplication syndrome is one of the most common genomic rearrangements in males and is characterized by autism, intellectual disability, motor dysfunction, anxiety, epilepsy, recurrent respiratory tract infections and early death. The broad range of deficits caused by methyl-CpG-binding protein 2 (MeCP2) overexpression poses a daunting challenge to traditional biochemical-pathway-based therapeutic approaches. Accordingly, we sought strategies that directly target MeCP2 and are amenable to translation into clinical therapy. The first question that we addressed was whether the neurological dysfunction is reversible after symptoms set in. Reversal of phenotypes in adult symptomatic mice has been demonstrated in some models of monogenic loss-of-function neurological disorders, including loss of MeCP2 in Rett syndrome, indicating that, at least in some cases, the neuroanatomy may remain sufficiently intact so that correction of the molecular dysfunction underlying these disorders can restore healthy physiology. Given the absence of neurodegeneration in MECP2 duplication syndrome, we propose that restoration of normal MeCP2 levels in MECP2 duplication adult mice would rescue their phenotype. By generating and characterizing a conditional Mecp2-overexpressing mouse model, here we show that correction of MeCP2 levels largely reverses the behavioural, molecular and electrophysiological deficits. We also reduced MeCP2 using an antisense oligonucleotide strategy, which has greater translational potential. Antisense oligonucleotides are small, modified nucleic acids that can selectively hybridize with messenger RNA transcribed from a target gene and silence it, and have been successfully used to correct deficits in different mouse models. We find that antisense oligonucleotide treatment induces a broad phenotypic rescue in adult symptomatic transgenic MECP2 duplication mice (MECP2-TG), and corrected MECP2 levels in lymphoblastoid cells from MECP2 duplication patients in a dose-dependent manner.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sztainberg, Yehezkel -- Chen, Hong-mei -- Swann, John W -- Hao, Shuang -- Tang, Bin -- Wu, Zhenyu -- Tang, Jianrong -- Wan, Ying-Wooi -- Liu, Zhandong -- Rigo, Frank -- Zoghbi, Huda Y -- 1U54HD083092/HD/NICHD NIH HHS/ -- 5P30HD024064/HD/NICHD NIH HHS/ -- 5R01NS057819/NS/NINDS NIH HHS/ -- P30 HD024064/HD/NICHD NIH HHS/ -- R01 NS057819/NS/NINDS NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2015 Dec 3;528(7580):123-6. doi: 10.1038/nature16159. Epub 2015 Nov 25.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas 77030, USA. ; Jan and Dan Duncan Neurological Research Institute at Texas Children's Hospital, Houston, Texas 77030, USA. ; The Cain Foundation Laboratories, Jan and Dan Duncan Neurological Research Institute at Texas Children's Hospital, Houston, Texas 77030, USA. ; Department of Neuroscience, Baylor College of Medicine, Houston, Texas 77030, USA. ; Department of Pediatrics, Baylor College of Medicine, Houston, Texas 77030, USA. ; Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, Texas 77030, USA. ; Isis Pharmaceuticals, 2855 Gazelle Court, Carlsbad, California 92010, USA. ; Howard Hughes Medical Institute, Baylor College of Medicine, Houston, Texas 77030, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26605526" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Attachment Sites, Microbiological/genetics ; Cells, Cultured ; Disease Models, Animal ; Electroencephalography ; Gene Dosage/*genetics ; Gene Duplication/genetics ; *Gene Knockdown Techniques ; Genes, Duplicate/*genetics ; Humans ; Integrases/genetics/metabolism ; Mental Retardation, X-Linked/*genetics/physiopathology ; Methyl-CpG-Binding Protein 2/*genetics/metabolism ; Mice ; Mice, Transgenic ; Oligonucleotides, Antisense/*genetics ; *Phenotype
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 4
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    Oxidative stress inhibits distant metastasis by human melanoma cells (2015)
    Nature Publishing Group (NPG)
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    Publication Date: 2015-10-16
    Description: Solid cancer cells commonly enter the blood and disseminate systemically, but are highly inefficient at forming distant metastases for poorly understood reasons. Here we studied human melanomas that differed in their metastasis histories in patients and in their capacity to metastasize in NOD-SCID-Il2rg(-/-) (NSG) mice. We show that melanomas had high frequencies of cells that formed subcutaneous tumours, but much lower percentages of cells that formed tumours after intravenous or intrasplenic transplantation, particularly among inefficiently metastasizing melanomas. Melanoma cells in the blood and visceral organs experienced oxidative stress not observed in established subcutaneous tumours. Successfully metastasizing melanomas underwent reversible metabolic changes during metastasis that increased their capacity to withstand oxidative stress, including increased dependence on NADPH-generating enzymes in the folate pathway. Antioxidants promoted distant metastasis in NSG mice. Folate pathway inhibition using low-dose methotrexate, ALDH1L2 knockdown, or MTHFD1 knockdown inhibited distant metastasis without significantly affecting the growth of subcutaneous tumours in the same mice. Oxidative stress thus limits distant metastasis by melanoma cells in vivo.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4644103/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4644103/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Piskounova, Elena -- Agathocleous, Michalis -- Murphy, Malea M -- Hu, Zeping -- Huddlestun, Sara E -- Zhao, Zhiyu -- Leitch, A Marilyn -- Johnson, Timothy M -- DeBerardinis, Ralph J -- Morrison, Sean J -- Howard Hughes Medical Institute/ -- England -- Nature. 2015 Nov 12;527(7577):186-91. doi: 10.1038/nature15726. Epub 2015 Oct 14.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Children's Research Institute and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, Texas 75390, USA. ; Department of Surgery, University of Texas Southwestern Medical Center, Dallas, Texas 75390, USA. ; Department of Dermatology, University of Michigan, Ann Arbor, Michigan 48109-2216, USA. ; Howard Hughes Medical Institute, University of Texas Southwestern Medical Center, Dallas, Texas 75390, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26466563" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antioxidants/metabolism ; Female ; Folic Acid/metabolism ; Gene Knockdown Techniques ; Humans ; Male ; Melanoma/blood/*metabolism/*pathology ; Methotrexate/pharmacology ; Methylenetetrahydrofolate Dehydrogenase (NADP)/deficiency/metabolism ; Mice ; Mice, Inbred NOD ; Mice, SCID ; NADP/metabolism ; Neoplasm Metastasis/*prevention & control ; Neoplasm Transplantation ; *Oxidative Stress ; Oxidoreductases Acting on CH-NH Group Donors/deficiency/metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 5
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    SEX DETERMINATION. A male-determining factor in the mosquito Aedes aegypti (2015)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2015-05-23
    Description: Sex determination in the mosquito Aedes aegypti is governed by a dominant male-determining factor (M factor) located within a Y chromosome-like region called the M locus. Here, we show that an M-locus gene, Nix, functions as an M factor in A. aegypti. Nix exhibits persistent M linkage and early embryonic expression, two characteristics required of an M factor. Nix knockout with clustered regularly interspaced short palindromic repeats (CRISPR)-Cas9 resulted in largely feminized genetic males and the production of female isoforms of two key regulators of sexual differentiation: doublesex and fruitless. Ectopic expression of Nix resulted in genetic females with nearly complete male genitalia. Thus, Nix is both required and sufficient to initiate male development. This study provides a foundation for mosquito control strategies that convert female mosquitoes into harmless males.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hall, Andrew Brantley -- Basu, Sanjay -- Jiang, Xiaofang -- Qi, Yumin -- Timoshevskiy, Vladimir A -- Biedler, James K -- Sharakhova, Maria V -- Elahi, Rubayet -- Anderson, Michelle A E -- Chen, Xiao-Guang -- Sharakhov, Igor V -- Adelman, Zach N -- Tu, Zhijian -- AI113643/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2015 Jun 12;348(6240):1268-70. doi: 10.1126/science.aaa2850. Epub 2015 May 21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Interdisciplinary PhD Program in Genetics, Bioinformatics, and Computational Biology, Virginia Polytechnic Institute and State University (Virginia Tech), Blacksburg, VA, USA. Department of Biochemistry, Virginia Tech, Blacksburg, VA, USA. Fralin Life Science Institute, Virginia Tech, Blacksburg, VA, USA. ; Fralin Life Science Institute, Virginia Tech, Blacksburg, VA, USA. Department of Entomology, Virginia Tech, Blacksburg, VA, USA. ; Department of Biochemistry, Virginia Tech, Blacksburg, VA, USA. Fralin Life Science Institute, Virginia Tech, Blacksburg, VA, USA. ; Department of Biochemistry, Virginia Tech, Blacksburg, VA, USA. ; School of Public Health and Tropical Medicine, Southern Medical University, Guangdong, People's Republic of China. ; Interdisciplinary PhD Program in Genetics, Bioinformatics, and Computational Biology, Virginia Polytechnic Institute and State University (Virginia Tech), Blacksburg, VA, USA. Fralin Life Science Institute, Virginia Tech, Blacksburg, VA, USA. Department of Entomology, Virginia Tech, Blacksburg, VA, USA. ; Interdisciplinary PhD Program in Genetics, Bioinformatics, and Computational Biology, Virginia Polytechnic Institute and State University (Virginia Tech), Blacksburg, VA, USA. Fralin Life Science Institute, Virginia Tech, Blacksburg, VA, USA. Department of Entomology, Virginia Tech, Blacksburg, VA, USA. jaketu@vt.edu zachadel@vt.edu. ; Interdisciplinary PhD Program in Genetics, Bioinformatics, and Computational Biology, Virginia Polytechnic Institute and State University (Virginia Tech), Blacksburg, VA, USA. Department of Biochemistry, Virginia Tech, Blacksburg, VA, USA. Fralin Life Science Institute, Virginia Tech, Blacksburg, VA, USA. jaketu@vt.edu zachadel@vt.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25999371" target="_blank"〉PubMed〈/a〉
    Keywords: Aedes/*genetics/*growth & development ; Animals ; Caspase 9 ; Clustered Regularly Interspaced Short Palindromic Repeats ; Female ; Gene Knockout Techniques ; *Genes, Insect ; *Genetic Loci ; Male ; Molecular Sequence Data ; Mosquito Control/methods ; Sex Determination Processes/*genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
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    Aging stem cells. A Werner syndrome stem cell model unveils heterochromatin alterations as a driver of human aging (2015)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2015-05-02
    Description: Werner syndrome (WS) is a premature aging disorder caused by WRN protein deficiency. Here, we report on the generation of a human WS model in human embryonic stem cells (ESCs). Differentiation of WRN-null ESCs to mesenchymal stem cells (MSCs) recapitulates features of premature cellular aging, a global loss of H3K9me3, and changes in heterochromatin architecture. We show that WRN associates with heterochromatin proteins SUV39H1 and HP1alpha and nuclear lamina-heterochromatin anchoring protein LAP2beta. Targeted knock-in of catalytically inactive SUV39H1 in wild-type MSCs recapitulates accelerated cellular senescence, resembling WRN-deficient MSCs. Moreover, decrease in WRN and heterochromatin marks are detected in MSCs from older individuals. Our observations uncover a role for WRN in maintaining heterochromatin stability and highlight heterochromatin disorganization as a potential determinant of human aging.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4494668/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4494668/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhang, Weiqi -- Li, Jingyi -- Suzuki, Keiichiro -- Qu, Jing -- Wang, Ping -- Zhou, Junzhi -- Liu, Xiaomeng -- Ren, Ruotong -- Xu, Xiuling -- Ocampo, Alejandro -- Yuan, Tingting -- Yang, Jiping -- Li, Ying -- Shi, Liang -- Guan, Dee -- Pan, Huize -- Duan, Shunlei -- Ding, Zhichao -- Li, Mo -- Yi, Fei -- Bai, Ruijun -- Wang, Yayu -- Chen, Chang -- Yang, Fuquan -- Li, Xiaoyu -- Wang, Zimei -- Aizawa, Emi -- Goebl, April -- Soligalla, Rupa Devi -- Reddy, Pradeep -- Esteban, Concepcion Rodriguez -- Tang, Fuchou -- Liu, Guang-Hui -- Belmonte, Juan Carlos Izpisua -- F32 AG047770/AG/NIA NIH HHS/ -- New York, N.Y. -- Science. 2015 Jun 5;348(6239):1160-3. doi: 10.1126/science.aaa1356. Epub 2015 Apr 30.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China. ; Biodynamic Optical Imaging Center, College of Life Sciences, Peking University, Beijing 100871, China. ; Gene Expression Laboratory, Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA 92037, USA. ; State Key Laboratory of Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China. ; Diagnosis and Treatment Center for Oral Disease, the 306th Hospital of the PLA, Beijing, China. ; Department of Molecular and Cellular Physiology, Stanford University School of Medicine, Stanford, CA 94305, USA. ; College of Life Sciences, Peking University, Beijing 100871, China. ; The Center for Anti-aging and Regenerative Medicine, Shenzhen University, Shenzhen 518060, China. ; Gene Expression Laboratory, Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA 92037, USA. Universidad Catolica San Antonio de Murcia, Campus de los Jeronimos s/n, 30107 Guadalupe, Murcia, Spain. ; Biodynamic Optical Imaging Center, College of Life Sciences, Peking University, Beijing 100871, China. Ministry of Education Key Laboratory of Cell Proliferation and Differentiation, Beijing 100871, China. Center for Molecular and Translational Medicine (CMTM), Beijing 100101, China. Peking-Tsinghua Center for Life Sciences, Peking University, Beijing 100871, China. ghliu@ibp.ac.cn tangfuchou@pku.edu.cn belmonte@salk.edu. ; National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China. The Center for Anti-aging and Regenerative Medicine, Shenzhen University, Shenzhen 518060, China. Center for Molecular and Translational Medicine (CMTM), Beijing 100101, China. Beijing Institute for Brain Disorders, Beijing 100069, China. ghliu@ibp.ac.cn tangfuchou@pku.edu.cn belmonte@salk.edu. ; Gene Expression Laboratory, Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA 92037, USA. ghliu@ibp.ac.cn tangfuchou@pku.edu.cn belmonte@salk.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25931448" target="_blank"〉PubMed〈/a〉
    Keywords: Aging/genetics/*metabolism ; Animals ; *Cell Aging ; Cell Differentiation ; Centromere/metabolism ; Chromosomal Proteins, Non-Histone/metabolism ; DNA-Binding Proteins/metabolism ; Epigenesis, Genetic ; Exodeoxyribonucleases/genetics/*metabolism ; Gene Knockout Techniques ; HEK293 Cells ; Heterochromatin/chemistry/*metabolism ; Humans ; Membrane Proteins/metabolism ; Mesenchymal Stromal Cells/*metabolism ; Methyltransferases/genetics/metabolism ; Mice ; Models, Biological ; RecQ Helicases/genetics/*metabolism ; Repressor Proteins/genetics/metabolism ; Werner Syndrome/genetics/*metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 7
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    TISSUE REGENERATION. Inhibition of the prostaglandin-degrading enzyme 15-PGDH potentiates tissue regeneration (2015)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2015-06-13
    Description: Agents that promote tissue regeneration could be beneficial in a variety of clinical settings, such as stimulating recovery of the hematopoietic system after bone marrow transplantation. Prostaglandin PGE2, a lipid signaling molecule that supports expansion of several types of tissue stem cells, is a candidate therapeutic target for promoting tissue regeneration in vivo. Here, we show that inhibition of 15-hydroxyprostaglandin dehydrogenase (15-PGDH), a prostaglandin-degrading enzyme, potentiates tissue regeneration in multiple organs in mice. In a chemical screen, we identify a small-molecule inhibitor of 15-PGDH (SW033291) that increases prostaglandin PGE2 levels in bone marrow and other tissues. SW033291 accelerates hematopoietic recovery in mice receiving a bone marrow transplant. The same compound also promotes tissue regeneration in mouse models of colon and liver injury. Tissues from 15-PGDH knockout mice demonstrate similar increased regenerative capacity. Thus, 15-PGDH inhibition may be a valuable therapeutic strategy for tissue regeneration in diverse clinical contexts.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4481126/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4481126/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhang, Yongyou -- Desai, Amar -- Yang, Sung Yeun -- Bae, Ki Beom -- Antczak, Monika I -- Fink, Stephen P -- Tiwari, Shruti -- Willis, Joseph E -- Williams, Noelle S -- Dawson, Dawn M -- Wald, David -- Chen, Wei-Dong -- Wang, Zhenghe -- Kasturi, Lakshmi -- Larusch, Gretchen A -- He, Lucy -- Cominelli, Fabio -- Di Martino, Luca -- Djuric, Zora -- Milne, Ginger L -- Chance, Mark -- Sanabria, Juan -- Dealwis, Chris -- Mikkola, Debra -- Naidoo, Jacinth -- Wei, Shuguang -- Tai, Hsin-Hsiung -- Gerson, Stanton L -- Ready, Joseph M -- Posner, Bruce -- Willson, James K V -- Markowitz, Sanford D -- 1P01CA95471-09/CA/NCI NIH HHS/ -- 5P30 CA142543-03/CA/NCI NIH HHS/ -- P01 CA095471/CA/NCI NIH HHS/ -- P30 CA043703/CA/NCI NIH HHS/ -- P30 CA142543/CA/NCI NIH HHS/ -- P30 DK020572/DK/NIDDK NIH HHS/ -- P30 DK097948/DK/NIDDK NIH HHS/ -- P50 CA130810/CA/NCI NIH HHS/ -- P50 CA150964/CA/NCI NIH HHS/ -- R01 CA127590/CA/NCI NIH HHS/ -- R25 CA148052/CA/NCI NIH HHS/ -- R25CA148052/CA/NCI NIH HHS/ -- U54 HL119810/HL/NHLBI NIH HHS/ -- U54HL119810/HL/NHLBI NIH HHS/ -- UL1 TR000439/TR/NCATS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2015 Jun 12;348(6240):aaa2340. doi: 10.1126/science.aaa2340.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, Case Western Reserve University, Cleveland, OH 44106, USA. ; Department of Medicine, Case Western Reserve University, Cleveland, OH 44106, USA. Department of Gastroenterology, Haeundae Paik Hospital, Inje University, Busan 612896, South Korea. ; Department of Medicine, Case Western Reserve University, Cleveland, OH 44106, USA. Department of Surgery, Busan Paik Hospital, and Paik Institute of Clinical Research and Ocular Neovascular Research Center, Inje University, Busan, South Korea. ; Department of Biochemistry, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA. ; Department of Medicine, Case Western Reserve University, Cleveland, OH 44106, USA. Case Medical Center, University Hospitals of Cleveland, Cleveland, OH 44106, USA. ; Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, OH 44106, USA. Department of Pathology, Case Western Reserve University, Cleveland, OH 44106, USA. Case Medical Center, University Hospitals of Cleveland, Cleveland, OH 44106, USA. ; Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, OH 44106, USA. Department of Pathology, Case Western Reserve University, Cleveland, OH 44106, USA. ; Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, OH 44106, USA. Department of Genetics and Genome Sciences, Case Western Reserve University, Cleveland, OH 44106, USA. ; Department of Family Medicine, University of Michigan, Ann Arbor MI 48109, USA. ; Department of Pharmacology, Vanderbilt University, Nashville, TN 37232, USA. ; Proteomics Center, Case Western Reserve University, Cleveland, OH 44106, USA. ; Department of Surgery, Case Western Reserve University, Cleveland, OH 44106, USA. Case Medical Center, University Hospitals of Cleveland, Cleveland, OH 44106, USA. ; Department of Pharmacology, Case Western Reserve University, Cleveland, OH 44106, USA. ; College of Pharmacy, University of Kentucky, Lexington, KY 40536, USA. ; Department of Medicine, Case Western Reserve University, Cleveland, OH 44106, USA. Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, OH 44106, USA. Case Medical Center, University Hospitals of Cleveland, Cleveland, OH 44106, USA. sxm10@cwru.edu james.willson@utsouthwestern.edu slg5@cwru.edu joseph.ready@utsouthwestern.edu bruce.posner@utsouthwestern.edu. ; Department of Biochemistry, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA. Simmons Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA. sxm10@cwru.edu james.willson@utsouthwestern.edu slg5@cwru.edu joseph.ready@utsouthwestern.edu bruce.posner@utsouthwestern.edu. ; Simmons Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA. sxm10@cwru.edu james.willson@utsouthwestern.edu slg5@cwru.edu joseph.ready@utsouthwestern.edu bruce.posner@utsouthwestern.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26068857" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bone Marrow Transplantation ; Colitis/enzymology/prevention & control ; Dinoprostone/metabolism ; Enzyme Inhibitors/chemistry/pharmacology ; Hematopoiesis/drug effects ; Hydroxyprostaglandin Dehydrogenases/antagonists & inhibitors/genetics/*physiology ; Liver Regeneration/drug effects ; Mice ; Mice, Knockout ; Prostaglandins/*metabolism ; Pyridines/chemistry/pharmacology ; Regeneration/drug effects/genetics/*physiology ; Thiophenes/chemistry/pharmacology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 8
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    Pollution threatens migratory shorebirds (2016)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2016-01-20
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tang, Zhenwu -- Huang, Qifei -- Nie, Zhiqiang -- Yang, Yufei -- New York, N.Y. -- Science. 2015 Dec 4;350(6265):1176-7. doi: 10.1126/science.350.6265.1176-c.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Environmental Research Academy, North China Electric Power University, Beijing, 102206, China. ; State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China. huangqf@craes.org.cn. ; State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26785469" target="_blank"〉PubMed〈/a〉
    Keywords: *Animal Migration ; Animals ; *Birds
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    A skin-inspired organic digital mechanoreceptor (2015)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2015-10-17
    Description: Human skin relies on cutaneous receptors that output digital signals for tactile sensing in which the intensity of stimulation is converted to a series of voltage pulses. We present a power-efficient skin-inspired mechanoreceptor with a flexible organic transistor circuit that transduces pressure into digital frequency signals directly. The output frequency ranges between 0 and 200 hertz, with a sublinear response to increasing force stimuli that mimics slow-adapting skin mechanoreceptors. The output of the sensors was further used to stimulate optogenetically engineered mouse somatosensory neurons of mouse cortex in vitro, achieving stimulated pulses in accordance with pressure levels. This work represents a step toward the design and use of large-area organic electronic skins with neural-integrated touch feedback for replacement limbs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tee, Benjamin C-K -- Chortos, Alex -- Berndt, Andre -- Nguyen, Amanda Kim -- Tom, Ariane -- McGuire, Allister -- Lin, Ziliang Carter -- Tien, Kevin -- Bae, Won-Gyu -- Wang, Huiliang -- Mei, Ping -- Chou, Ho-Hsiu -- Cui, Bianxiao -- Deisseroth, Karl -- Ng, Tse Nga -- Bao, Zhenan -- New York, N.Y. -- Science. 2015 Oct 16;350(6258):313-6. doi: 10.1126/science.aaa9306.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Electrical Engineering, Stanford University, Stanford, CA, USA. ; Department of Materials Science and Engineering, Stanford University, Stanford, CA, USA. ; Department of Bioengineering, Stanford University, Stanford, CA, USA. ; Department of Chemistry, Stanford University, Stanford, CA, USA. ; Department of Chemical Engineering, Stanford University, Stanford, CA, USA. ; Xerox Palo Alto Research Center, Palo Alto, CA, USA. ; Department of Chemical Engineering, Stanford University, Stanford, CA, USA. zbao@stanford.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26472906" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cerebral Cortex/cytology/physiology ; Hand/anatomy & histology/innervation/physiology ; Humans ; In Vitro Techniques ; *Mechanoreceptors ; Mice ; *Neural Prostheses ; Optogenetics ; Pressure ; Skin/*innervation ; *Touch ; Transcutaneous Electric Nerve Stimulation/*methods ; Transistors, Electronic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    The Symbiodinium kawagutii genome illuminates dinoflagellate gene expression and coral symbiosis (2015)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2015-11-07
    Description: Dinoflagellates are important components of marine ecosystems and essential coral symbionts, yet little is known about their genomes. We report here on the analysis of a high-quality assembly from the 1180-megabase genome of Symbiodinium kawagutii. We annotated protein-coding genes and identified Symbiodinium-specific gene families. No whole-genome duplication was observed, but instead we found active (retro)transposition and gene family expansion, especially in processes important for successful symbiosis with corals. We also documented genes potentially governing sexual reproduction and cyst formation, novel promoter elements, and a microRNA system potentially regulating gene expression in both symbiont and coral. We found biochemical complementarity between genomes of S. kawagutii and the anthozoan Acropora, indicative of host-symbiont coevolution, providing a resource for studying the molecular basis and evolution of coral symbiosis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lin, Senjie -- Cheng, Shifeng -- Song, Bo -- Zhong, Xiao -- Lin, Xin -- Li, Wujiao -- Li, Ling -- Zhang, Yaqun -- Zhang, Huan -- Ji, Zhiliang -- Cai, Meichun -- Zhuang, Yunyun -- Shi, Xinguo -- Lin, Lingxiao -- Wang, Lu -- Wang, Zhaobao -- Liu, Xin -- Yu, Sheng -- Zeng, Peng -- Hao, Han -- Zou, Quan -- Chen, Chengxuan -- Li, Yanjun -- Wang, Ying -- Xu, Chunyan -- Meng, Shanshan -- Xu, Xun -- Wang, Jun -- Yang, Huanming -- Campbell, David A -- Sturm, Nancy R -- Dagenais-Bellefeuille, Steve -- Morse, David -- AI056034/AI/NIAID NIH HHS/ -- AI073806/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2015 Nov 6;350(6261):691-4. doi: 10.1126/science.aad0408.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉State Key Laboratory of Marine Environmental Science and Marine Biodiversity and Global Change Research Center, Xiamen University, Xiamen 361101, China. Department of Marine Sciences, University of Connecticut, Groton, CT 06340, USA. senjie.lin@uconn.edu. ; Beijing Genomics Institute (BGI)-Shenzhen, Shenzhen, 518083, China. Hong Kong University (HKU)-BGI Bioinformatics Algorithms and Core Technology Research Laboratory, The Computer Science Department, The University of Hong Kong, Hong Kong, China. School of Biological Sciences, The University of Hong Kong, Pokfulam, Hong Kong, China. ; Beijing Genomics Institute (BGI)-Shenzhen, Shenzhen, 518083, China. ; State Key Laboratory of Marine Environmental Science and Marine Biodiversity and Global Change Research Center, Xiamen University, Xiamen 361101, China. ; Department of Marine Sciences, University of Connecticut, Groton, CT 06340, USA. ; State Key Laboratory of Stress Cell Biology, School of Life Sciences, Xiamen University, Xiamen 361101, China. ; Bioinformatics Institute, Agency for Science, Technology and Research, Singapore. ; Beijing Genomics Institute (BGI)-Shenzhen, Shenzhen, 518083, China. Department of Biology, University of Copenhagen, DK-2200 Copenhagen, Denmark. Princess Al Jawhara Center of Excellence in the Research of Hereditary Disorders, King Abdulaziz University, Jeddah, Saudi Arabia. ; Beijing Genomics Institute (BGI)-Shenzhen, Shenzhen, 518083, China. Princess Al Jawhara Center of Excellence in the Research of Hereditary Disorders, King Abdulaziz University, Jeddah, Saudi Arabia. James D. Watson Institute of Genome Science, Hangzhou, China. ; Department of Microbiology, Immunology, and Molecular Genetics, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA 90095, USA. ; Institut de Recherche en Biologie Vegetale, Departement de Sciences Biologiques, Universite de Montreal, Montreal, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26542574" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anthozoa/*physiology ; Biological Evolution ; *Coral Reefs ; Dinoflagellida/*genetics ; *Gene Expression Regulation ; Gene Targeting ; *Genome, Protozoan ; MicroRNAs/genetics ; Symbiosis/*genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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