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.

 These studies suggest that NO - related signaling pathways may mediate SDF1 alpha - induced chemotaxis , but not mitogen - activated protein kinase activation .
SDF1 alpha

 Glucocorticoid antagonists are steroids that interact with the receptor but either fail to produce a stable complex or produce a stable but inefficient complex .
stable complex

 The objective of the present study was to investigate the effect of homocysteine on MCP - 1 production in endothelial cells .

MCP - 1

