http://www.w3.org/ns/prov#value | - For example, TNF plays a major role in the organogenesis of the lymphoid system in early development; it has pro-apoptotic and anti-apoptotic effects, depending on the underlying contextual situation; it controls the activation and responsiveness of many cells, including cells of the immune system; and it is a master switch in the initiation and perpetuation of inflammatory responses (Figure ???(F
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