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  • 1
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    Latency-associated degradation of the MRP1 drug transporter during latent human cytomegalovirus infection (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-04-13
    Description: The reactivation of latent human cytomegalovirus (HCMV) infection after transplantation is associated with high morbidity and mortality. In vivo, myeloid cells and their progenitors are an important site of HCMV latency, whose establishment and/or maintenance require expression of the viral transcript UL138. Using stable isotope labeling by amino acids in cell culture-based mass spectrometry, we found a dramatic UL138-mediated loss of cell surface multidrug resistance-associated protein-1 (MRP1) and the reduction of substrate export by this transporter. Latency-associated loss of MRP1 and accumulation of the cytotoxic drug vincristine, an MRP1 substrate, depleted virus from naturally latent CD14(+) and CD34(+) progenitors, all of which are in vivo sites of latency. The UL138-mediated loss of MRP1 provides a marker for detecting latent HCMV infection and a therapeutic target for eliminating latently infected cells before transplantation.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3683642/" 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/PMC3683642/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Weekes, Michael P -- Tan, Shireen Y L -- Poole, Emma -- Talbot, Suzanne -- Antrobus, Robin -- Smith, Duncan L -- Montag, Christina -- Gygi, Steven P -- Sinclair, John H -- Lehner, Paul J -- 084957/Wellcome Trust/United Kingdom -- 084957/Z/08/Z/Wellcome Trust/United Kingdom -- 093966/Wellcome Trust/United Kingdom -- 093966/Z/10/Z/Wellcome Trust/United Kingdom -- 100140/Wellcome Trust/United Kingdom -- G0701279/Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2013 Apr 12;340(6129):199-202. doi: 10.1126/science.1235047.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cambridge Institute for Medical Research, University of Cambridge, Cambridge, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23580527" target="_blank"〉PubMed〈/a〉
    Keywords: Antigens, CD34/analysis ; Cell Line, Tumor ; Cytomegalovirus/genetics/*physiology ; Cytomegalovirus Infections/*metabolism/*virology ; Dendritic Cells/physiology ; Down-Regulation ; Humans ; Lysosomes/metabolism ; Monocyte-Macrophage Precursor Cells/metabolism/virology ; Monocytes/metabolism/virology ; Multidrug Resistance-Associated Proteins/genetics/*metabolism ; Vincristine/metabolism/pharmacology ; Viral Proteins/*metabolism ; *Virus Latency
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    Malaria. A forward genetic screen identifies erythrocyte CD55 as essential for Plasmodium falciparum invasion (2015)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2015-05-09
    Description: Efforts to identify host determinants for malaria have been hindered by the absence of a nucleus in erythrocytes, which precludes genetic manipulation in the cell in which the parasite replicates. We used cultured red blood cells derived from hematopoietic stem cells to carry out a forward genetic screen for Plasmodium falciparum host determinants. We found that CD55 is an essential host factor for P. falciparum invasion. CD55-null erythrocytes were refractory to invasion by all isolates of P. falciparum because parasites failed to attach properly to the erythrocyte surface. Thus, CD55 is an attractive target for the development of malaria therapeutics. Hematopoietic stem cell-based forward genetic screens may be valuable for the identification of additional host determinants of malaria pathogenesis.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4465434/" 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/PMC4465434/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Egan, Elizabeth S -- Jiang, Rays H Y -- Moechtar, Mischka A -- Barteneva, Natasha S -- Weekes, Michael P -- Nobre, Luis V -- Gygi, Steven P -- Paulo, Joao A -- Frantzreb, Charles -- Tani, Yoshihiko -- Takahashi, Junko -- Watanabe, Seishi -- Goldberg, Jonathan -- Paul, Aditya S -- Brugnara, Carlo -- Root, David E -- Wiegand, Roger C -- Doench, John G -- Duraisingh, Manoj T -- 100140/Wellcome Trust/United Kingdom -- 1K08AI103034-01A1/AI/NIAID NIH HHS/ -- K01 DK098285/DK/NIDDK NIH HHS/ -- K01DK098285/DK/NIDDK NIH HHS/ -- K08 AI103034/AI/NIAID NIH HHS/ -- K12-HD000850/HD/NICHD NIH HHS/ -- R01AI091787/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2015 May 8;348(6235):711-4. doi: 10.1126/science.aaa3526.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Immunology and Infectious Diseases, Harvard T. H. Chan School of Public Health, Boston, MA, USA. Division of Infectious Diseases, Boston Children's Hospital, Boston, MA, USA. ; Department of Immunology and Infectious Diseases, Harvard T. H. Chan School of Public Health, Boston, MA, USA. Department of Global Health and Center for Drug Discovery and Innovation, University of South Florida, Tampa, FL, USA. ; Department of Immunology and Infectious Diseases, Harvard T. H. Chan School of Public Health, Boston, MA, USA. ; Department of Pediatrics, Harvard Medical School and Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA, USA. ; Cambridge Institute for Medical Research, University of Cambridge, Cambridge, UK. ; Department of Cell Biology, Harvard Medical School, Boston, MA, USA. ; Japanese Red Cross Kinki Block Blood Center, Osaka, Japan. ; Japanese Red Cross Kyushu Block Blood Center, Fukuoka, Japan. ; Department of Laboratory Medicine, Boston Children's Hospital and Harvard Medical School, Boston, MA, USA. ; The Broad Institute of Harvard and Massachussetts Insititute of Technology, Cambridge, MA, USAA. ; Department of Immunology and Infectious Diseases, Harvard T. H. Chan School of Public Health, Boston, MA, USA. The Broad Institute of Harvard and Massachussetts Insititute of Technology, Cambridge, MA, USAA. mduraisi@hsph.harvard.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25954012" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, CD44/genetics ; Antigens, CD55/*genetics ; Cell Differentiation/genetics ; Cells, Cultured ; Erythrocytes/cytology/metabolism/*parasitology ; Genetic Testing ; Hematopoietic Stem Cells/cytology ; Host-Parasite Interactions/*genetics ; Humans ; Malaria, Falciparum/*genetics/*parasitology ; Plasmodium falciparum/*pathogenicity ; RNA, Small Interfering/genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 3
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    Transferrin receptor 1 is a reticulocyte-specific receptor for Plasmodium vivax (2018)
    American Association for the Advancement of Science (AAAS)
    In: Science
    Details
    Publication Date: 2018-01-05
    Description: Plasmodium vivax shows a strict host tropism for reticulocytes. We identified transferrin receptor 1 (TfR1) as the receptor for P. vivax reticulocyte-binding protein 2b (PvRBP2b). We determined the structure of the N-terminal domain of PvRBP2b involved in red blood cell binding, elucidating the molecular basis for TfR1 recognition. We validated TfR1 as the biological target of PvRBP2b engagement by means of TfR1 expression knockdown analysis. TfR1 mutant cells deficient in PvRBP2b binding were refractory to invasion of P. vivax but not to invasion of P. falciparum . Using Brazilian and Thai clinical isolates, we show that PvRBP2b monoclonal antibodies that inhibit reticulocyte binding also block P. vivax entry into reticulocytes. These data show that TfR1-PvRBP2b invasion pathway is critical for the recognition of reticulocytes during P. vivax invasion.
    Keywords: Microbiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Geosciences , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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