Author's response to reviews Title: IFN-gamma response on T-cell based assays in HIV-infected patients for detection of tuberculosis infection Authors:

ارزیابی پرولیفراسیون سلولی و بیان داخل سلولی اینترفرون گاما (IFN-Gamma) در بیماران مبتلا به بروسلوز

T cell proliferation is a standard method to evaluate cellular immune responses against intracellular infectious agents. Recently, intracellular cytokine assay is a valuable procedure for studying of the immune response to various stimuli such as intracellular microbes. The present study was undertaken to assess cell-mediated    immune responses in patients with acute ...

IFN-γ response on T-cell based assays in HIV-infected patients for detection of tuberculosis infection

BACKGROUND Individuals infected with human immunodeficiency virus (HIV) have an increased risk of progression to active tuberculosis following Mycobacterium tuberculosis infection. The objective of the study was to determine IFN-γ responses for the detection of latent tuberculosis infection (LTBI) with QuantiFERON-TB GOLD In Tube (QFT-G-IT) and T-SPOT.TB in HIV patients, and evaluate the influe...

Author's response to reviews Title: Comparison of Two Interferon Gamma Release Assays in the diagnosis of Mycobacterium tuberculosis infection and disease in The Gambia Authors:

No Evidence of the Th1 to Th2 Cytokine Shift during the Course of HIV Infection

Background and Objectives: Infection with human immunodeficiency virus (HIV) results in dysregulation of the cytokine profile. A switch from a T helper 1 (Th1) to a Th2 cytokine has been proposed as an important factor in progression of HIV infection to AIDS. The aim of the present study was to assess the level of Th1 and Th2 cytokines in HIV infected individuals in order to identify t...

Isolation of mycobacterium-reactive CD1-restricted T cells from patients with human immunodeficiency virus infection.

Because CD1-restricted T cells lack CD4 but produce IFN-gamma in response to nonpeptide mycobacterial antigens, they could play a unique role in immunity to tuberculosis. We studied CD1-restricted T cells in the context of HIV infection by expanding CD4(-) T cell lines from 10 HIV-infected patients. Upon stimulation with Mycobacterium tuberculosis antigen or upon exposure to macrophages infecte...