Final answer:
Type 2 T-helper lymphocytes (TH2 cells) are primarily responsible for stimulating B cells to produce antibodies. They produce several cytokines, particularly Interleukin-4 (IL-4) and Interleukin-10 (IL-10), which are key to the humoral immune response.
Step-by-step explanation:
Type 2 T-helper lymphocytes (TH2 cells) produce several cytokines, which play a crucial role in the humoral immune response by activating B cells and guiding their differentiation into plasma cells that produce antibodies. The cytokines secreted by TH2 cells include Interleukin-4 (IL-4), which is essential for B cell class switching and antibody production, and Interleukin-10 (IL-10), which has anti-inflammatory properties and regulates immune responses.
TH2 cells also produce Interleukin-5 (IL-5) and Interleukin-13 (IL-13), which are important for the defense against parasitic infections, but these are not listed in the options provided. It is important to note that Interleukin-2 (IL-2) is primarily produced by TH1 cells, and Interleukin-6 (IL-6) can be produced by various cells, not just TH2 cells. Therefore, the cytokines produced by TH2 cells from the provided options are Interleukin-4 (IL-4) and Interleukin-10 (IL-10).