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Severe CD4+T-Cell Depletion in Gut Lymphoid Tissue during Primary Human Immunodeficiency Virus Type 1 Infection and Substantial Delay in Restoration following Highly Active Antiretroviral Therapy

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Guadalupe, Moraima, Reay, Elizabeth, Sankaran, Sumathi, Prindiville, Thomas, Flamm, Jason, McNeil, Andrew, Dandekar, Satya·2003·Journal of Virology

Abstract

Gut-associated lymphoid tissue (GALT) harbors the majority of T lymphocytes in the body and is an important target for human immunodeficiency virus type 1 (HIV-1). We analyzed longitudinal jejunal biopsy samples from HIV-1-infected patients, during both primary and chronic stages of HIV-1 infection, prior to and following the initiation of highly active antiretroviral therapy (HAART) to determine the onset of CD4+T-cell depletion and the effect of HAART on the restoration of CD4+T cells in GALT. Severe depletion of intestinal CD4+T cells occurred during primary HIV-1 infection. Our results showed that the restoration of intestinal CD4+T cells following HAART in chronically HIV-1-infected patients was substantially delayed and incomplete. In contrast, initiation of HAART during early stages of infection resulted in near-complete restoration of intestinal CD4+T cells, despite the delay in comparison to peripheral blood CD4+T-cell recovery. DNA microarray analysis of gene expression profiles and flow-cytometric analysis of lymphocyte homing and cell proliferation markers demonstrated that cell trafficking to GALT and not local proliferation contributed to CD4+T-cell restoration. Evaluation of jejunal biopsy samples from long-term HIV-1-infected nonprogressors showed maintenance of normal CD4+T-cell levels in both GALT and peripheral blood. Our results demonstrate that near-complete restoration of mucosal immune system can be achieved by initiating HAART early in HIV-1 infection. Monitoring of the restoration and/or maintenance of CD4+T cells in GALT provides a more accurate assessment of the efficacy of antiviral host immune responses as well as HAART.

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Crossref · 10.1128/jvi.77.21.11708-11717.2003

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  • Organ-specific non-peripheral cells with tissue-homing markers can transiently appear in blood cell preparations.

    “In these blood cell preparations, organ-specific non-peripheral cells with tissue-homing markers can also transiently appear. 16-20”

    From Revealing viral and cellular dynamics of HIV-1 at the single-cell level during early treatment periods (2023) · cites this paper as [18]

    The Results report that peripheral blood CD4+ T cells expressed integrin β7, a marker involved in homing to the intestinal mucosa. They do not establish that these cells originated in an organ or appeared only transiently in blood cell preparations; the proposed trafficking direction is from the periphery to the gut. Page numbers are unavailable in our copy. (LLM, conf=0.84)

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  • It is known that especially integrin a4b7-expressing cells are predominantly infected and depleted during the early infection phases, with a rather poor recovery during ART.

    “It is known that especially integrin a 4 b 7 -expressing cells are predominantly infected and depleted during the early infection phases, with a rather poor recovery during ART. 18,20”

    From Revealing viral and cellular dynamics of HIV-1 at the single-cell level during early treatment periods (2023) · cites this paper as [18]

    The Results (page not specified) show severe intestinal CD4+ T-cell depletion during primary HIV-1 infection and delayed, incomplete recovery with HAART begun during chronic infection. They measure integrin β7 expression during HAART, but do not show that α4β7-expressing cells are preferentially infected or depleted, or that this specific subset recovers poorly. The Results also report near-complete intestinal CD4+ T-cell restoration when HAART began during primary infection. (LLM, conf=0.88)

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Research works printed but not linked: 1

  1. [19]Schneider, T., H. U. Jahn, W. Schmidt, E. O. Riecken, M. Zeitz, R. Ullrich, et al. 1995. Loss of CD4 T lymphocytes in patients infected with human immunodeficiency virus type 1 is more pronounced in the duodenal mucosa than in the peripheral blood. Gut 37:524-529. [DOI] [PMC free article] [PubMed] [Google Scholar]

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Authors
Guadalupe, M., Reay, E., Sankaran, S., Prindiville, T., Flamm, J., McNeil, A., & Dandekar, S.
Affiliations
  • University of California, Davis (US)
  • Departments of Medical Microbiology & Immunology
  • The Permanente Medical Group Inc.
Venue
Journal of Virology
Published
2003-11
Volume
77
Issue
21
Pages
11708-11717
ISSN
  • 0022-538X (ISSN-L)
  • 1098-5514
OpenAlex
W2076120354
Cited by
866
References
24
Citations by year
2026: 13 · 2025: 7 · 2024: 11 · 2023: 14 · 2022: 23 · 2021: 27 · 2020: 21 · 2019: 26 · 2018: 26 · 2017: 32 · 2016: 42 · 2015: 45 · 2014: 48 · 2013: 62 · 2012: 60
FWCI
7.86
Type
journal article
Language
en
Open access
Locations
  • Journal of Virology (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health
  • National Institute of Diabetes and Digestive and Kidney Diseases (DK 61297, R01DK061297)
Topics
  • Life Sciences › Immunology and Microbiology › Virology › HIV Research and Treatment
  • Health Sciences › Medicine › Infectious Diseases › HIV/AIDS Research and Interventions
  • Health Sciences › Medicine › Emergency Medicine › HIV-related health complications and treatments
Keywords
HIV-1 infection, CD4+ T cell depletion, gut-associated lymphoid tissue, highly active antiretroviral therapy, CD4+ T cell recovery, jejunal biopsy, lymphocyte homing, nonprogressors, gene expression profiling, early treatment initiation
MeSH terms
Adult, Cell Movement, Chronic Disease, Female, Flow Cytometry, Humans, Immunohistochemistry, Jejunum, Lymphocyte Activation, Lymphoid Tissue, Male, Middle Aged, Time Factors, CD4-Positive T-Lymphocytes, HIV-1, HIV Infections, CD8-Positive T-Lymphocytes, CD4 Lymphocyte Count, Antiretroviral Therapy, Highly Active

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