The diagnosis of HIV infection is based on screening of HIV antibodies and confirmed by a more specific supplementary test. The most common confirmation test is Western blot, which is expensive, time consuming and subject to technical skill. The present study was carried out to evaluate whether the anti-HIV-1 antibody titer is valid as a supplementary test for diagnosis of HIV-1 infection. Anti...

Investigations of anti-HIV-1 human hematopoietic stem/progenitor cell (HSPC)-based gene therapy have been performed by HIV-1 challenge after the engraftment of gene-modified HSPCs in humanized mouse models. However, the clinical application of gene therapy is to treat HIV-1-infected patients. Here, we developed a new method to investigate an anti-HIV-1 HSPC-based gene therapy in humanized mice ...

The ex vivo antiviral CD8(+) repertoires of 34 human immunodeficiency virus (HIV)-seropositive patients with various CD4(+) T-cell counts and virus loads were analyzed by gamma interferon enzyme-linked immunospot assay, using peptides derived from HIV type 1 and Epstein-Barr virus (EBV). Most patients recognized many HIV peptides, with markedly high frequencies, in association with all the HLA ...

Human immunodeficiency virus infection / acquired immunodeficiency syndrome (HIV/AIDS) is a disease pertained to the human immune system. Given its crucial role in viral replication, HIV-1 protease (HIV-1 PR) is a prime therapeutic target in AIDS therapy. In this regard, the dynamic aspects of ligand-enzyme interactions may indicate an important role of conformational variability in HIV-1 PR in...

Background and Objectives: Human T-cell lymphotropic viruses (HTLV) type 1 and 2 are retroviruses that share the same routes of transmission as human immunodeficiency virus (HIV). As a consequence of epidemiologic similarities, HIV and HTLV-1/2 co-infection is frequent. Due to the limited data, this study assessed the seroprevalence of HTLV-1/2 infections in HIV infected patients in Tehran, Ira...

  Background and Objective: It is presumed that human herpes virus 8 (HHV-8) is the necessary cause of all different forms of Kaposi’s sarcoma which is the most common neoplasm in HIV-infected persons. In this study, we wanted to determine the prevalence of HHV8 infection in all the available Isfahan (Central Iran) HIV positive individuals in comparison with healthy blood donor, and also inves...

Natural killer (NK) cells are the major antiviral effector population of the innate immune system. We previously found that S100A9 is a novel ligand of the receptor CD85j and that S100A9 tetramers enhance the anti-HIV activity of NK cells. Also, we found that dendritic cells (DCs) infected by the HIV vaccine candidate, MVAHIV, prime NK cells to specifically control HIV infection in autologous C...

toxoplasma gondii has arisen as an important opportunistic agent especially in the central nervous system and in advanced hiv disease can cause significant morbidity and mortality. this study was carried out to determine the seroprevalence of toxoplasmosis among hiv-positive patients in iran. blood samples were collected from 201 hiv-positive patients and anti-toxoplasma antibodies were detecte...

The V3 loop of the human immunodeficiency virus type 1 (HIV-1) envelope protein (Env) is one conserved immunogenic regions targeted by neutralizing antibodies (nAb). Two different binding modes anti-V3 abs have been reported in studies using two mimotopes: ladle-type and cradle-type. We previously isolated a nAb, 1C10, that potently broadly neutralized clade B viruses. Despite its potent neutra...

A case of a false-positive result of human immunodeficiency virus (HIV) confirmatory immunoblot-based assay is described. Repeatedly borderline reactive anti-HIV screening enzyme immunoassay result obtained in a local hospital resulted in directing the sample to the Slovenian HIV/AIDS Reference Laboratory. In the Reference Laboratory, both anti-HIV screening assays and confirmatory Western blot...