After these cells develop into plasma cells, they produce Y-shaped proteins that recognize antigens.
In order for some of these cells to develop, stromal cells must secrete stem cell factor, Kit, and IL-7. In the process of clonal deletion, these cells undergo negative selection but not positive selection. The AID enzyme helps these cells modify the isotype of their products via recombination, in a process called class switching. Rituximab attacks CD20 on the surface of these cells before they fully mature, which is exploited to treat lymphoma. After these cells develop into plasma cells, they produce Y-shaped proteins that recognize antigens. For 10 points, name this these antibody-producing lymphocytes, which are often contrasted with T cells.
In order for some of these cells to develop, stromal cells must secrete stem cell factor, Kit, and IL-7.
B cells [or B lymphocytes]