Normalization of CD4+ T-Lymphocyte Depletion in Patients Without HIV Infection Treated for Tuberculosis

Background: Incomplete immune reconstitution may occur despite successful antiretroviral therapy (ART). Gut-associated lymphoid tissue (GALT) fibrosis may contribute via local CD4+ T lymphocyte depletion, intestinal barrier disruption, microbial translocation, and immune activation.Methods: In a cross-sectional analysis, we measured circulating fibrosis biomarker levels on cryopreserved plasma from adult HIV-infected (HIV+) SCOPE study participants on suppressive ART who also had fibrosis quantification on recto-sigmoid biopsies. Relationships among biomarker levels, clinical and demographic variables, GALT lymphoid aggregate (LA) collagen deposition, and LA CD4+ T lymphocyte density were analyzed using simple regression. Biomarker levels were also compared to levels in HIV+ viremic SCOPE participants and a convenience sample of HIV-uninfected (HIV-) samples. Results: HIV+ aviremic participants (n=39) were 92% male and 41% non-white, with median age 48 years, CD4+ T lymphocyte count 277 cells/mm3, and 17 years since HIV diagnosis. Most biomarkers were lower in HIV− (n=36) vs HIV+ aviremic individuals, although CXCL4 levels were higher. HIV+ viremic individuals (N=18) had higher median TGF-ß3, CIC-C1Q, and TIMP-1 (P<0.05) and lower LOXL2 levels (P=0.08) than HIV+ aviremic individuals. Only higher LOXL2 levels correlated with more GALT collagen deposition (R=0.44, P=0.007) and lower LA CD4+ T lymphocyte density (R=−0.32, P=0.05) among aviremic individuals.Conclusions: Circulating LOXL2 levels may be a noninvasive measure of intestinal fibrosis and GALT CD4+T lymphocyte depletion in treated HIV infection. LOXL2 crosslinks elastin and collagen, and elevated LOXL2 levels occur in pathologic states, making LOXL2 inhibition a potential interventional target for intestinal fibrosis and its sequelae.

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PROTEIN 24 HIV DAN LIMFOSIT T-CD4+ DI INFEKSI HIV TAHAP I

INDONESIAN JOURNAL OF CLINICAL PATHOLOGY AND MEDICAL LABORATORY ◽

10.24293/ijcpml.v21i3.740 ◽

2016 ◽

Vol 21 (3) ◽

pp. 273

Author(s):

I Made Sila Darmana ◽

Endang Retnowati ◽

Erwin Astha Triyono

Keyword(s):

T Lymphocytes ◽

Hiv Infection ◽

T Lymphocyte ◽

Negative Correlation ◽

Stage I ◽

Cross Sectional ◽

Protein Levels ◽

P24 Protein ◽

Persistent Generalized Lymphadenopathy ◽

Spearman Test

Measuring HIV p24 protein is a test which is more practical than determination of CD4+ T-lymphocyte counts and viral load, as it does not require a very sophisticated instrument and requires a lower cost. Independent predictive value of p24 to the decline of CD4+ T-lymphocytes, clinical progression and survival in HIV-infected patients have been reported. In this study, HIV-infected patients were found to have HIV p24 protein levels inversely proportional to CD4+ T-lymphocyte counts by using Spearman test (R2=0.225; p=0.0331). Studies on the correlation between HIV p24 protein levels and CD4+ T-lymphocyte counts in stage I HIV infection have not yet been reported. The aim of this study was to prove the correlation between HIV p24 protein levels and CD4+ T-lymphocytes in stage I HIV infection. Research issue was whether a correlation between HIV p24 protein levels and CD4+ T-lymphocyte counts in stage I HIVinfection existed ? The hypothesis was that a correlation between HIV p24 protein levels and CD4+ T-lymphocyte counts in stage I HIV infection existed. The study design was cross sectional observational. Subjects consisted of 30 stage I HIV-infected patients treated at the Infectious Disease Intermediate Care Unit, Dr. Soetomo Hospital and VCT Clinic of the Dr. Ramelan Naval Hospital, Surabaya from May to July 2014. Stage I HIV infection is an asymptomatic HIV infection or with persistent generalized lymphadenopathy and the patient is able to perform normal activities. Levels of p24 were measured by ELISA method and CD4+ T-lymphocyte counts using flowcytometry(BD FACSCaliburTM). The results were statistically analyzed using Pearson’s correlation test. HIV p24 protein levels in stage I of HIV infection ranged from 1.8 to 10.8 pg/mL, mean of 5.14 pg/mL and a standard deviation of 2.08 pg/mL. CD4+ T-lymphocyte counts decreased with a range of 49-559 cells /uL for absolute values and 4.42–26.02% for percentage values Correlations between blood p24 levels and CD4+ T-lymphocyte counts either absolute (r=–0.392, p=0.032) or percentage (r=–0.363, p=0.049) were found. In stage I HIV-infected patients, a negative correlation was found between p24 levels and CD4+ T-lymphocyte counts, in both CD4+T-lymphocyte counts as absolute and as well as percentage values. This negative correlation showed that the p24 HIV levels were inversely proportional to the CD4+ T-lymphocyte counts. HIV p24 protein levels have a possibility to be used predicting CD4+ T-lymphocyte counts

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Peripheral T lymphocyte depletion by apoptosis after CD4 ligation in vivo: selective loss of CD44− and ‘activating’ memory T cells

Clinical & Experimental Immunology ◽

10.1111/j.1365-2249.1994.tb06036.x ◽

2008 ◽

Vol 95 (1) ◽

pp. 195-200 ◽

Cited By ~ 42

Author(s):

S. E. M. HOWIE ◽

A. J. SOMMERFIELD ◽

E. GRAY ◽

D. J. HARRISON

Keyword(s):

T Cells ◽

T Lymphocyte ◽

Memory T Cells ◽

Lymphocyte Depletion ◽

Selective Loss

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EFFECT OF IMMUNOMODULATORY HERBAL MEDICINAL PREPARATIONS ON CD4 + LYMPHOCYTE COUNT AND TOTAL VIRAL LOAD IN HIV-INFECTED INDIVIDUALS

INDIAN DRUGS ◽

10.53879/id.49.07.p0042 ◽

2012 ◽

Vol 49 (07) ◽

pp. 42-48

Author(s):

S. T. Tharakan ◽

◽

G Kuttan ◽

R. Kuttan ◽

M. Kesavan ◽

...

Keyword(s):

Renal Function ◽

Body Weight ◽

Viral Load ◽

Hiv Infection ◽

T Lymphocyte ◽

Lymphocyte Count ◽

Clinical Status ◽

Hiv Patients ◽

Herbal Formulation ◽

Hematological Analysis

This study was carried out to determine the effect of herbal medication on the clinical status of HIV infected persons especially on their CD4+ T lymphocyte count and viral load. The toxicity of the medication was also studied. 25 HIV positive individuals were taken for the study. They were treated with a herbal formulation developed in our centre, for one year. Patients were evaluated for their clinical status every month and CD4+ T lymphocyte and viral load every six months. Other parameters assessed were body weight, hematological analysis and hepatic and renal function tests. Body weight was found to be increased in 20 patients out of 25 who have undergone treatment. CD4+T lymphocyte count was increased in 15 patients and viral load was decreased in 20 patients. In six patients viral load was undetectable range. Administration of these medications significantly reduced, elevated interferon-? and tumor necrosis factor in HIV patients. Medication did not produce any toxicity in HIV patients, as it did not show any significant change in hepatic function, renal function and haematology. Administration of herbal preparation was found to reduce clinical symptoms produced by HIV infection. This herbal formulation was found useful therapeutically for the management of HIV infection and did not produce any toxicity.

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