INTRODUCTION Fish mycobacteriosis is caused by the non-tuberculous mycobacteria. Infected fish are normally the primary source of infection, although non-tuberculous Mycobacteria can be found in the environment. The present study was designed to investigate the few recently found suspected cases of mycobacteriosis in Iranian ornamental fish tanks. MATERIALS AND METHODS Pathological specimens ...

BACKGROUND Protein-calorie malnutrition (PCM) is the most common type of malnutrition. PCM leads to immunodeficiency and consequent increased susceptibility to infectious agents. In addition, responses to prophylactic vaccines depend on nutritional status. This study aims to evaluate the ability of undernourished mice to mount an immune response to a genetic vaccine (pVAXhsp65) against tubercul...

It has been suggested that molecular mimicry between self-(mammalian)-components, such as self-stress, heat-shock proteins (HspIGO 81 bacterial Hsp65 (Mycobacterium [M.] tuberculosis or M. bovisl might be implicated in the human rheumatoid arthritis IRA) --an autoimmune inflammatory joint disease, which is characterized by infiltration of lymphocytespredominantly of the T lineage in the synovia...

BACKGROUND Mycobacterium bolletii and Mycobacterium massiliense are recently described species of nontuberculous mycobacteria. Footbaths preceding pedicures at nail salons have been implicated as reservoirs of infection with nontuberculous mycobacteria. To our knowledge, this case series represents the first documented outbreak of M bolletii/M massiliense furunculosis, identified by heat-shock ...

BACKGROUND Heat shock proteins are highly conserved immunodominant antigens found in various species. Humoral immune responses to mycobacterial HSP65 and human HSP60 have been established in a number of human autoimmune diseases. OBJECTIVE To assess the prevalence of antibodies to HSP60 kDa and HSP65 kDa in patients with Sjögren's syndrome as compared to normal subjects. METHODS Thirty-seve...

objective: dendritic cells (dcs) are essential for the activation and polarization of t cells during an adaptive immune response. in this research we investigated the effect of the lymphoide dcs pulsed with heat-treated tumor lysate (htl) as a vaccine in tumor immunotherapy. materials and methods: the balb/c mice were injected subcutaneously in the right flank with wehi-164 fibrosarcoma cells ...

The intraperitoneal infection with Toxoplasma gondii (T. gondii) caused accumulation of gamma delta T, NK, NK1.1+T-like (NKT) cells at inflamed sites. To clarify the roles of these cells in protection against T. gondii at the inflamed sites, BALB/c mice were depleted of gamma delta T, NK, NK and NKT cells by treatment with antibody against TCR-gamma delta, asialoGM1 or Interleukin-2 receptor be...

background: heat shock protein 70 (hsp70) is present in all organisms studied so far, and is a major immunogen in infections caused by pathogens including leishmania spp. objective: the aim of this study was to clone and express hsp70 from l. infantum strain mcan/ir/96/lon-49 and evaluate antibody response against hsp70 in visceral leishmaniasis (vl). methods: the l. infantum hsp70 gene segment...

The small heat-shock proteins have undergone a tremendous diversification in plants; whereas only a single small heat-shock protein is found in fungi and many animals, over 20 different small heat-shock proteins are found in higher plants. The small heat-shock proteins in plants have diversified in both sequence and cellular localization and are encoded by at least five gene families. In the st...

T helper 1 cells play a major role in protective immunity against mycobacterial pathogens. Since the antigen (Ag) specificity of CD4(+) human T cells is strongly controlled by HLA class II polymorphism, the immunogenic potential of candidate Ags needs to be defined in the context of HLA polymorphism. We have taken advantage of class II-deficient (Ab0) mice, transgenic for either HLA-DRA/B1*0301...