A SURVEY OF CELLULAR IMMUNITY, TOTAL T-LYMPHOCYTE, T-ACTIVE , B-LYMPHOCYTE A ND T-CELL FUNCTION IN RELATION TO PHYTOHEMAGGLUTININ (PHA) IN THALASSEMIC PATIENTS

a survey of cellular immunity, total t-lymphocyte, t-active , b-lymphocyte a nd t-cell function in relation to phytohemagglutinin (pha) in thalassemic patients

the aim of this study was to evaluate the immune system and lymphocyte function in 41 iranian β-thalassemic patients and 50 controls, ages ranging from 2 to 18 years. the patients consisted of 20 splenectomized and 21 non-splenectomized patients. they were treated with desferal, and had received repeated blood transfusion. laboratory investigations included measurement of total t lymphocytes, a...

B and T Lymphocyte Attenuator is a Target of miR-155 during Naive CD4+ T Cell Activation

Background: MicroRNA-155 (miR-155) is upregulated during T cell activation, but the exact mechanisms by which it influences CD4+ T cell activation remain unclear. Objective: To examine whether the B and T lymphocyte attenuator (BTLA) is a target of miR-155 during naïve CD4+ T cell activation. Methods: Firefly luciferase reporter plasmids pEZX-MT01-wild-type-BTLA and pEZX-MT01-mutant-BTLA were ...

T Lymphocyte Apoptosis in Systemic Lupus Erythematosus Patients

Objective(s):  Apoptosis is a tightly regulated process and plays a crucial role in autoimmune diseases. Because abnormalities in apoptosis are considered to be involved in the pathogenesis of systemic lupus erythematosus (SLE), in present study we studied the apoptosis in T lymphocytes from Iranian SLE patientsat protein and gene expression levels for some molecules which are involved in apopt...

ALTERATION OF T-LYMPHOCYTE SUBPOPULATIONS IN SUBACUTE AND CHRONIC BRUCELLOSIS

Human brucellosis is a major health problem in developing countries. A number of patients with human brucellosis do not recover from the acute stage of the disease and pass into the chronic form. Since the pathophysiology of this change is not well understood, we studied the T-cell subsets during the acute, subacute and chronic forms of human brucellosis. In this study we found alterations...

CD8+ T Lymphocyte Subsets in Bladder Tumor Draining Lymph Nodes

Background: Cytotoxic CD8+ T cells, as essential parts of the adaptive immune system, play pivotal roles in anti-tumor immune responses. It is well documented that cytokine expression profiles and activation status of these cells during anti-tumor immune responses affect the outcome of host-tumor interaction. Objective: To investigate the percentages of CD8+ lymphocytes and their subsets in...

T lymphocyte function