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Many diseases are characterized by pathogenic autoantibodies such as hemolytic anemia (erythroctye surface antigen), graves' disease (thyroid stimulating hormone R). There are several ways to deal with autoreactive immature B…

Thymus-dependent (TD) activation: B cell activation can occur one of two ways. The first way depends upon TH cells and is called Thymus-dependent (TD). The other way does not and is referred to…

See also antibody diversity B cells develop in the bone marrow. B-cell development begins as lymphoid stem cells differentiate into progenitor B cells (pro-B cells) which express a transmembrane tyrosine…

One of the critical factors underlysing the difficulty in generating human Mabs is the low frequency of antigen specific B cells in the peripheral blood. Typically, antigen specific B cells…

See also antibody production methods B cell activation can occur one of two ways. The first way depends upon TH cells and is called Thymus-dependent (TD). The other way does not and is…

The maturation of most T cells and the development of their specific receptors are directed by the thymus and its hormones. This contrasts with B cells which develop in the…

Proliferation Lymphoproliferative assay (LPA): largely measures the in vitro proliferative capacity of CD4T cells. Typically PBMC are placed in culture with recombinant protein antigens for 5-7 days and then pulsed with…

The TCR[beta] chain consists of variable (V), joining (J), diversity (D) and constant (C) regions encoded by gene segments spanning 685 kilobases of human chromosome seven. Diversity and antigen specificity…

TH cells orchestrate an acquired immune response by promoting intracellular killing by macrophages, antibody production by B lymphocytes, and clonal expansion of cytotoxic T lymphocytes. The TCRs of TH cells…

Naive T cells: CD4 and CD8 T cells leave the thymus and enter circulation as resting cells in the G0 stage of the cell cycle. These naive cells express high levels…