instruction:
In this task, you are given a sentence. You are expected to recognize the name of gene or protein. Although there might be several correct answers, you need to write one of them.
question:
 The present study first shows that OX40 - gp34 interaction stimulates HIV - 1 expression and suggests that OX40 triggering by gp34 may play an important role in enhancing HIV - 1 production in both acutely and latently infected CD4 ( + ) T cells in vivo .
answer:
HIV - 1


question:
 No clear correlation could be established between the level of glucocorticoid receptor and the in vitro action of steroids in normal and neoplastic lymphoid tissue .
answer:
glucocorticoid receptor


question:
 These included inhibition of the proliferative responses to the T - cell mitogens concanavalin A and phytohaemagglutinin and an enhanced accumulation of immunoglobulin secreting cells in pokeweed mitogen - stimulated cultures .
answer:

concanavalin A