In what way does the T cell’s membrane receptors differ from the B cell’s membrane receptor? In other words, what will each bind to?

What is the relationship and differences between receptor-mediated endocytosis and TLR in relation to innate immunity?

In the antibody-mediated immune response, the binding of some antigen-presenting B cells to helper T cells initiates a signal transduction pathway that transforms the B cells into plasma cells, which will synthesize and secrete large quantities of antibodies-a specialized subset of proteins responsible for attaching to the antigen on the outer surface of pathogens. Which of the following describes the most relevant intracellular change to B cells as they are transformed into plasma cells? A B a breakdown of some membrane-bound proteins to allow synthesized antibodies to more readily diffuse across the membrane of the plasma cell с an increase in the surface area of the rough endoplasmic reticulum in order to allow the binding of a large number of ribosomes for antibody synthesis D an increase in the number of lysosomes in order to facilitate the storage of synthesized antibodies ahead of their transport out of the cell an increase in the volume of the mitochondria in order to increase…

All of the following statements concerning regulatory T cells (Treg) are correct, EXCEPT: The regulatory cytokines produced by regulatory T cells are IL-12 and TGF-B O Thymocytes that recognize self-antigen in the thymus with a certain affinity become natural (central) regulatory T cells O In the periphery T cells that recognize self-antigen in the presence of TGF-B become induced regulatory T cells O A Treg cell can suppress self-reactive lymphocytes that recognize peptides different from that recognized itself provided that the peptides are derived from the same tissue O A Treg cell can suppress self-reactive lymphocytes that recognize peptides different from that recognized by itself provided that the peptides are presented by the same antigen-presenting cell (APC)

Describe the differences in how an antigen presenting cells (APC) activate a Helper T versus a Cytotoxic T cell.

What are the similarities and divergences between Immunoglobulin and T-Cell Receptor (TCR) rearrangement? What are the genes and key enzymes involved in this process?

Which mechanisms theoretically prevent B and T lymphocyte auto-reactivity? Which tissues and cells are involved?

How is clonal selection related to the vast number of possible B and T-cell receptor binding conformations?  Draw a picture to illustrate your explanation.

(i) Explain the role of Ras.GTP and Rac.GTP in the formation of active AP-1 during T- cell activation. (ii) Cadmium ions have been shown to be selective blockers of membrane calcium channels. Suppose T lymphocytes are cultured in the presence of cadmium chloride, explain what happens to TCR-triggered signal transduction.