Study of TH1/TH2 Cytokine Profiles in HIV/AIDS Patients in a Tertiary Care Hospital in India
- *Corresponding Author:
- Ravinder Kaur
Department of Microbiology
Lady Hardinge Medical College and Associated Hospitals
New Delhi-110001, India
Tel: 011- 23408185
E-mail: [email protected]
Received: November 30, 2015; Accepted: January 07, 2016; Published: January 11, 2016
Citation: Kaur R, Dhakad MS, Goyal R, Bhalla P, Dewan R (2016) Study of TH1/TH2 Cytokine Profiles in HIV/AIDS Patients in a Tertiary Care Hospital in India. J Med Microb Diagn 5:214. doi: 10.4172/2161-0703.1000214
Copyright: © 2016 Kaur R, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Background and Objectives: Switch of cytokines from a T helper 1 (Th1) to a Th2 is an important factor in the progression of HIV infection to AIDS. Hence, our objectives were to analyze the levels of Th1 (IL-2, IFN-γ) and Th2 (IL-4, IL-10) cytokines and their correlation with clinical and immunological profiles in HIV/AIDS patients.
Methods: We studied 234 symptomatic HIV positive patients (case group) attending OPDs, ART clinic and medical wards of the Hospital. CD4+T-cell count was determined by flow cytometry using Fluorescent Activated Cell Sorter Count system. Quantitative determination of cytokines (Th1 subtype: IL-2, IFN-γ and Th2 subtype: IL-4, IL-10) was done by ELISA.
Results: Patients (08-68 years) had CD4+T-cell counts ranged from 16-1033 cells/μl. The median CD4+T cell count was 204.50 cells/μl and the mean was 265.48 cells/μl. The concentration of IL-2 and IFN-γ were significantly lower in case group compared to asymptomatic HIV patients (P<0.001) while the IL-4 in symptomatic HIV negative was higher than healthy controls and case group compared to asymptomatic HIV patients. Concentration of IL-10 was also higher in case group compared to asymptomatic HIV patients. A positive correlation was found between IL-4, IFN-γ, IL-2 with CD4+T-cells and a negative correlation between IL-10 and CD4+T-cells among the case group.
Conclusions: Hence a decline in type-1 cytokines (IFN-γ, IL-2) and rise in type-2 cytokines (IL-4, IL-10) was observed in symptomatic patients with HIV infection in comparison to asymptomatic HIV patients suggesting a shift from Th1 to Th2 type cytokine response.