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HIV-1 Determinants of Thrombocytopenia at the Stage of CD34+ Progenitor Cell Differentiation in Vivo Lie in the Viral Envelope Gp120 V3 Loop Region

Overview
Journal Virology
Specialty Microbiology
Date 2010 Mar 27
PMID 20338611
Citations 4
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Abstract

HIV-1 V3 loop clones of virus isolates derived from patients suffering from thrombocytopenia were used for infection of the human thymus/liver conjoint hematopoietic organ that developed in the severe combined immunodeficient mouse (SCID-hu Thy/Liv). The V3 loop clones showed a significantly greater degree of inhibition of megakaryopoiesis than myelopoiesis and erythropoiesis of the human CD34+ progenitor cells, in vivo. Inhibition of megakaryopoiesis occurs through reduction in c-Mpl expression and consequent decrease in STAT5 activation. Therefore HIV-1 V3 loop sequences of thrombocytopenic patients exhibit preferential inhibition of megakaryocyte lineage-specific differentiation of CD34+ progenitor cells, thus reflecting the patients' clinical condition.

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References
1.
Voulgaropoulou F, Tan B, Soares M, Hahn B, Ratner L . Distinct human immunodeficiency virus strains in the bone marrow are associated with the development of thrombocytopenia. J Virol. 1999; 73(4):3497-504. PMC: 104119. DOI: 10.1128/JVI.73.4.3497-3504.1999. View

2.
Voulgaropoulou F, Pontow S, Ratner L . Productive infection of CD34+-cell-derived megakaryocytes by X4 and R5 HIV-1 isolates. Virology. 2000; 269(1):78-85. DOI: 10.1006/viro.2000.0193. View

3.
Cole J, Marzec U, Gunthel C, Karpatkin S, Worford L, Sundell I . Ineffective platelet production in thrombocytopenic human immunodeficiency virus-infected patients. Blood. 1998; 91(9):3239-46. View

4.
Jensen M, Coetzer M, van t Wout A, Morris L, Mullins J . A reliable phenotype predictor for human immunodeficiency virus type 1 subtype C based on envelope V3 sequences. J Virol. 2006; 80(10):4698-704. PMC: 1472078. DOI: 10.1128/JVI.80.10.4698-4704.2006. View

5.
Kirito K, Kaushansky K . Transcriptional regulation of megakaryopoiesis: thrombopoietin signaling and nuclear factors. Curr Opin Hematol. 2006; 13(3):151-6. DOI: 10.1097/01.moh.0000219660.03657.4b. View