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CD4+ T Cell Kinetics and Activation in Human Immunodeficiency Virus—Infected Patients Who Remain Viremic Despite Long-Term Treatment with Protease Inhibitor—Based Therapy
T cell dynamics were studied in human immunodeficiency virus-infected patients who continued using antiretroviral therapy despite detectable plasma viremia (RNA copies > 2500 /mL). CD4+ cell fractional replacement rates, measured by the deuterated glucose technique, were lower in treated patients...
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Published in: | The Journal of infectious diseases 2002-02, Vol.185 (3), p.315-323 |
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container_title | The Journal of infectious diseases |
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creator | Deeks, Steven G. Hoh, Rebecca Grant, Robert M. Wrin, Terri Barbour, Jason D. Narvaez, Amy Cesar, Denise Abe, Ken Hanley, Mary Beth Hellmann, Nicholas S. Petropoulos, Christos J. McCune, Joseph M. Hellerstein, Marc K. |
description | T cell dynamics were studied in human immunodeficiency virus-infected patients who continued using antiretroviral therapy despite detectable plasma viremia (RNA copies > 2500 /mL). CD4+ cell fractional replacement rates, measured by the deuterated glucose technique, were lower in treated patients with detectable viremia than in untreated patients and were similar to those in patients with undetectable viremia. Cell cycle and activation markers exhibited similar trends. For any level of viremia, CD4+ cell fractional replacement rates were lower in patients with drug-resistant virus than in patients with wild-type virus, which suggests that the resistant variant was less virulent. Interruption of treatment in patients with drug-resistant viremia resulted in increased CD4+ cell activation, increased CD4+ cell turnover, and decreased CD4+ cell counts. These data indicate that partial virus suppression reduces CD4+ cell turnover and activation, thereby resulting in sustained CD4+ cell gains, and that measurements of T cell dynamics may provide an in vivo marker of viral virulence. |
doi_str_mv | 10.1086/338467 |
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CD4+ cell fractional replacement rates, measured by the deuterated glucose technique, were lower in treated patients with detectable viremia than in untreated patients and were similar to those in patients with undetectable viremia. Cell cycle and activation markers exhibited similar trends. For any level of viremia, CD4+ cell fractional replacement rates were lower in patients with drug-resistant virus than in patients with wild-type virus, which suggests that the resistant variant was less virulent. Interruption of treatment in patients with drug-resistant viremia resulted in increased CD4+ cell activation, increased CD4+ cell turnover, and decreased CD4+ cell counts. These data indicate that partial virus suppression reduces CD4+ cell turnover and activation, thereby resulting in sustained CD4+ cell gains, and that measurements of T cell dynamics may provide an in vivo marker of viral virulence.</description><identifier>ISSN: 0022-1899</identifier><identifier>EISSN: 1573-6613</identifier><identifier>EISSN: 1537-6613</identifier><identifier>DOI: 10.1086/338467</identifier><identifier>PMID: 11807713</identifier><identifier>CODEN: JIDIAQ</identifier><language>eng</language><publisher>Chicago, IL: The University of Chicago Press</publisher><subject>Adult ; Biological and medical sciences ; CD4-Positive T-Lymphocytes - immunology ; CD4-Positive T-Lymphocytes - physiology ; CD8-Positive T-Lymphocytes - immunology ; Cell Cycle ; Cross-Sectional Studies ; Drug Resistance, Viral ; HIV Infections - drug therapy ; HIV Infections - immunology ; HIV Infections - virology ; HIV Protease Inhibitors - therapeutic use ; Human viral diseases ; Humans ; Immunophenotyping ; Infectious diseases ; Lymphocyte Activation ; Medical sciences ; RNA, Viral - blood ; Viral diseases ; Viral diseases of the lymphoid tissue and the blood. 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CD4+ cell fractional replacement rates, measured by the deuterated glucose technique, were lower in treated patients with detectable viremia than in untreated patients and were similar to those in patients with undetectable viremia. Cell cycle and activation markers exhibited similar trends. For any level of viremia, CD4+ cell fractional replacement rates were lower in patients with drug-resistant virus than in patients with wild-type virus, which suggests that the resistant variant was less virulent. Interruption of treatment in patients with drug-resistant viremia resulted in increased CD4+ cell activation, increased CD4+ cell turnover, and decreased CD4+ cell counts. These data indicate that partial virus suppression reduces CD4+ cell turnover and activation, thereby resulting in sustained CD4+ cell gains, and that measurements of T cell dynamics may provide an in vivo marker of viral virulence.</description><subject>Adult</subject><subject>Biological and medical sciences</subject><subject>CD4-Positive T-Lymphocytes - immunology</subject><subject>CD4-Positive T-Lymphocytes - physiology</subject><subject>CD8-Positive T-Lymphocytes - immunology</subject><subject>Cell Cycle</subject><subject>Cross-Sectional Studies</subject><subject>Drug Resistance, Viral</subject><subject>HIV Infections - drug therapy</subject><subject>HIV Infections - immunology</subject><subject>HIV Infections - virology</subject><subject>HIV Protease Inhibitors - therapeutic use</subject><subject>Human viral diseases</subject><subject>Humans</subject><subject>Immunophenotyping</subject><subject>Infectious diseases</subject><subject>Lymphocyte Activation</subject><subject>Medical sciences</subject><subject>RNA, Viral - blood</subject><subject>Viral diseases</subject><subject>Viral diseases of the lymphoid tissue and the blood. Aids</subject><subject>Viremia - immunology</subject><issn>0022-1899</issn><issn>1573-6613</issn><issn>1537-6613</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2002</creationdate><recordtype>article</recordtype><recordid>eNp10d2OEyEUB_CJ0bh11UcwaKI3ZhQGBpjL3e6ubWy00foRbyYMc8aydmAWGLV3PoTP4UP5JLJpYxMTuSHh_M4fwsmy-wQ_I1jy55RKxsWNbEJKQXPOCb2ZTTAuipzIqjrK7oRwiTFmlIvb2REhEgtB6CT7NT1jT9EKTWGzQS-NhWh0QMq26ERH81VF4ywyFs3GXlk07_vRuhY6ow1YvUXvjR_D7x8_57YDHaFFy9QBNgb0Ye3QG-hV6k0IeqPRGYTBREALZz_nK_A9WnlQsU8efTNxjZbeRVAB0NyuTWOi8yn6NB20aLUGr4bt3exWpzYB7u334-zdxflqOssXr1_MpyeLXLNCxrxsaNMy0ZWcNLzBQraApRAdVFKnhUWpKBWt0LIqW10pVjZasgITXbSp1NHj7Mkud_DuaoQQ694Enf5IWXBjqAVhhJe8SPDRP_DSjd6mt9VFQWXFMcOHNO1dCB66evCmV35bE1xfj6_ejS_BB_u0semhPbD9vBJ4vAcqaLXpvLLahIOjjDPCrt3DnXPj8P_L8p0xIcL3v0r5L3WqirKeffxU02V1On376iI1_QFEmr3B</recordid><startdate>20020201</startdate><enddate>20020201</enddate><creator>Deeks, Steven G.</creator><creator>Hoh, Rebecca</creator><creator>Grant, Robert M.</creator><creator>Wrin, Terri</creator><creator>Barbour, Jason D.</creator><creator>Narvaez, Amy</creator><creator>Cesar, Denise</creator><creator>Abe, Ken</creator><creator>Hanley, Mary Beth</creator><creator>Hellmann, Nicholas S.</creator><creator>Petropoulos, Christos J.</creator><creator>McCune, Joseph M.</creator><creator>Hellerstein, Marc K.</creator><general>The University of Chicago Press</general><general>University of Chicago Press</general><general>Oxford University Press</general><scope>BSCLL</scope><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>K9.</scope><scope>NAPCQ</scope><scope>7X8</scope></search><sort><creationdate>20020201</creationdate><title>CD4+ T Cell Kinetics and Activation in Human Immunodeficiency Virus—Infected Patients Who Remain Viremic Despite Long-Term Treatment with Protease Inhibitor—Based Therapy</title><author>Deeks, Steven G. ; Hoh, Rebecca ; Grant, Robert M. ; Wrin, Terri ; Barbour, Jason D. ; Narvaez, Amy ; Cesar, Denise ; Abe, Ken ; Hanley, Mary Beth ; Hellmann, Nicholas S. ; Petropoulos, Christos J. ; McCune, Joseph M. ; Hellerstein, Marc K.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c428t-5b3bd47f561b6b078de0877fe98cccc075a337d7c895dc9a45bc84201c2d5a3f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2002</creationdate><topic>Adult</topic><topic>Biological and medical sciences</topic><topic>CD4-Positive T-Lymphocytes - immunology</topic><topic>CD4-Positive T-Lymphocytes - physiology</topic><topic>CD8-Positive T-Lymphocytes - immunology</topic><topic>Cell Cycle</topic><topic>Cross-Sectional Studies</topic><topic>Drug Resistance, Viral</topic><topic>HIV Infections - drug therapy</topic><topic>HIV Infections - immunology</topic><topic>HIV Infections - virology</topic><topic>HIV Protease Inhibitors - therapeutic use</topic><topic>Human viral diseases</topic><topic>Humans</topic><topic>Immunophenotyping</topic><topic>Infectious diseases</topic><topic>Lymphocyte Activation</topic><topic>Medical sciences</topic><topic>RNA, Viral - blood</topic><topic>Viral diseases</topic><topic>Viral diseases of the lymphoid tissue and the blood. 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subjects | Adult Biological and medical sciences CD4-Positive T-Lymphocytes - immunology CD4-Positive T-Lymphocytes - physiology CD8-Positive T-Lymphocytes - immunology Cell Cycle Cross-Sectional Studies Drug Resistance, Viral HIV Infections - drug therapy HIV Infections - immunology HIV Infections - virology HIV Protease Inhibitors - therapeutic use Human viral diseases Humans Immunophenotyping Infectious diseases Lymphocyte Activation Medical sciences RNA, Viral - blood Viral diseases Viral diseases of the lymphoid tissue and the blood. Aids Viremia - immunology |
title | CD4+ T Cell Kinetics and Activation in Human Immunodeficiency Virus—Infected Patients Who Remain Viremic Despite Long-Term Treatment with Protease Inhibitor—Based Therapy |
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