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  • 1
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    CDK8 is a colorectal cancer oncogene that regulates beta-catenin activity (2008)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2008-09-17
    Description: Aberrant activation of the canonical WNT/beta-catenin pathway occurs in almost all colorectal cancers and contributes to their growth, invasion and survival. Although dysregulated beta-catenin activity drives colon tumorigenesis, further genetic perturbations are required to elaborate full malignant transformation. To identify genes that both modulate beta-catenin activity and are essential for colon cancer cell proliferation, we conducted two loss-of-function screens in human colon cancer cells and compared genes identified in these screens with an analysis of copy number alterations in colon cancer specimens. One of these genes, CDK8, which encodes a member of the mediator complex, is located at 13q12.13, a region of recurrent copy number gain in a substantial fraction of colon cancers. Here we show that the suppression of CDK8 expression inhibits proliferation in colon cancer cells characterized by high levels of CDK8 and beta-catenin hyperactivity. CDK8 kinase activity was necessary for beta-catenin-driven transformation and for expression of several beta-catenin transcriptional targets. Together these observations suggest that therapeutic interventions targeting CDK8 may confer a clinical benefit in beta-catenin-driven malignancies.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2587138/" 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/PMC2587138/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Firestein, Ron -- Bass, Adam J -- Kim, So Young -- Dunn, Ian F -- Silver, Serena J -- Guney, Isil -- Freed, Ellen -- Ligon, Azra H -- Vena, Natalie -- Ogino, Shuji -- Chheda, Milan G -- Tamayo, Pablo -- Finn, Stephen -- Shrestha, Yashaswi -- Boehm, Jesse S -- Jain, Supriya -- Bojarski, Emeric -- Mermel, Craig -- Barretina, Jordi -- Chan, Jennifer A -- Baselga, Jose -- Tabernero, Josep -- Root, David E -- Fuchs, Charles S -- Loda, Massimo -- Shivdasani, Ramesh A -- Meyerson, Matthew -- Hahn, William C -- K08 CA134931/CA/NCI NIH HHS/ -- P50CA127003/CA/NCI NIH HHS/ -- R33 CA128625/CA/NCI NIH HHS/ -- R33 CA128625-01A1/CA/NCI NIH HHS/ -- R33CA128625/CA/NCI NIH HHS/ -- T32 CA009172/CA/NCI NIH HHS/ -- T32 GM007753/GM/NIGMS NIH HHS/ -- England -- Nature. 2008 Sep 25;455(7212):547-51. doi: 10.1038/nature07179. Epub 2008 Sep 14.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medical Oncology, Dana-Farber Cancer Institute, 44 Binney Street, Boston, Massachusetts 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18794900" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Line, Tumor ; Cell Proliferation ; Cell Transformation, Neoplastic ; Colorectal Neoplasms/*genetics/*metabolism/pathology ; Cyclin-Dependent Kinase 8 ; Cyclin-Dependent Kinases/deficiency/*genetics/*metabolism ; Gene Dosage ; *Gene Expression Regulation, Neoplastic ; Humans ; Oncogene Proteins/deficiency/genetics/metabolism ; *Oncogenes ; RNA Interference ; Transcription, Genetic ; beta Catenin/*metabolism
    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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    Effects of adipose-specific Gs{alpha} deficiency in mice [Physiology] (2016)
    National Academy of Sciences
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    Publication Date: 2016-01-13
    Description: Gsα, the G protein that transduces receptor-stimulated cAMP generation, mediates sympathetic nervous system stimulation of brown adipose tissue (BAT) thermogenesis and browning of white adipose tissue (WAT), which are both potential targets for treating obesity, as well as lipolysis. We generated a mouse line with Gsα deficiency in mature BAT...
    Print ISSN: 0027-8424
    Electronic ISSN: 1091-6490
    Topics: Biology , Medicine , Natural Sciences in General
    Published by National Academy of Sciences
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  • 3
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    The complete mitochondrial genome of the land snail Cerion incanum (Gastropoda: Stylommatophora) and the phylogenetic relationships of Cerionidae within Panpulmonata (2016)
    Oxford University Press
    Details
    Publication Date: 2016-11-04
    Description: The complete mitochondrial genome of the neotype of Cerion incanum ( Leidy, 1851 ) was sequenced using high-throughput sequencing and found to be a circular genome 15,117 bp in length with a GC content of 34.3%. It is the largest mitogenome presently known in Stylommatophora, with the difference in size due primarily to intergenic regions and to a lesser extent to larger sizes of individual genes. Gene content is identical to that of other stylommatophorans, but differs in having the tRNA-Gln gene situated on the major coding strand. Gene order of C. incanum was similar to that in Helicidae, differing in the regions between COX1 and NADH5, and between tRNA-Ser2 and tRNA-Ile. The potential origin of replication was located in a 50-bp noncoding region between COX3 and tRNA-Ile. Phylogenetic analyses using Bayesian inference and maximum-likelihood analyses of nucleotide data for all protein-coding and large and small ribosomal genes resulted in a well-resolved tree. This tree was similar to trees derived from nuclear or a combination of nuclear and mitochondrial genes, differing from previous phylogenetic reconstructions based on mitogenomes in the placement of Hygrophila. The phylogenetic position of Cerionidae as sister taxon to Helicoidea is consistent with previous findings after allowing for more limited taxon sampling in the mitogenome tree. The mitogenome tree is sufficiently populated to refute the inclusion of Cerionidae in Clausiloidea, as advocated by some authors, but at present lacks the representatives of the Orthalicoidea or Urocoptoidea needed to resolve more precisely its relationships with those taxa.
    Print ISSN: 0260-1230
    Electronic ISSN: 1464-3766
    Topics: Biology
    Published by Oxford University Press
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