نتایج جستجو برای: natural regulatory t cells
تعداد نتایج: 2435484 فیلتر نتایج به سال:
Repeated exposures to both microbial and innocuous Ags in vivo have been reported to both eliminate and tolerize T cells after their initial activation and expansion. The remaining tolerant T cells have been shown to suppress the response of naive T cells in vitro. This feature is reminiscent of natural CD4(+)CD25(+) regulatory T cells. However, it is not known whether the regulatory function o...
the purpose of this study was to determine the role of streptococcal m protein in naturally-occurring cd4+cd25+ regulatory t cells (ntregs) function and development in rheumatic heart disease in iraqi patients. streptococcus pyogenes was isolated for subsequent m protein extraction. also, peripheral blood ntregs and cd4+ t cells were isolated by using magnetic cell separation system. tissue cul...
Mesenchymal Stem Cells (MSCs) are well known as the regulator of the immune system. These multipotent non-hematopoietic progenitor cells have been originally isolated from bone marrow, and later on found in several other tissues, such as skeletal muscle, umbilical cord blood, adipose and fetal liver tissues. Immunomodulatory effects of MSCs on a variety of immune cells such as T and B lymphocyt...
Background: Lymph node stromal fibroblasts are interconnected with TCD4+ cells and affect their phenotype and function. Understanding the nature of these interactions under unusual conditions like infections will help to their application in control and regulation of immune responses. Materials and methods: Lymph node fibroblasts were affected in BCG primed immune environment by both in-...
Mesenchymal stem cells can be obtained from deferent tissues like adipose tissue, umbilical cord, placenta, skin, bone marrow, etc. These cells have regulatory effects on all types of immune cells such as dendritic cell, natural killers and lymphocytes. Mesenchymal stem cells induce inhibitory phenotypes of Antigen Presenting Cells (APCs) following their activity. They also change T cells pheno...
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