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.

Q: A clinically acceptable synthetic derivative of MDP , namely murabutide ( MB ) , has been found to present interesting pharmacological properties and to suppress HIV - 1 replication in monocyte - derived macrophages ( MDM ) .

A: HIV - 1
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Q: Moreover , we show that ectopic expression of the E2A protein E12 in this macrophage line results in the induction of many B lineage genes , including EBF , IL7Ralpha , lambda5 , and Rag - 1 , and the ability to induce kappa light chain in response to mitogen .

A: kappa light chain
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Q: The objective of the present study was to investigate the effect of homocysteine on MCP - 1 production in endothelial cells .

A:
MCP - 1
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