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 relative volume of the tubulointerstitium was measured by an image analyzer ; deposition of collagen types III and IV and monocyte / macrophage infiltration were histologically examined using specific antibodies .
answer:
specific antibodies


question:
 TNF - alpha - related apoptosis - inducing ligand ( TRAIL ) is characterized by its preferential induction of apoptosis of tumor cells but not normal cells .
answer:
TNF - alpha


question:
 Using 32P - labeled Egr consensus oligonucleotide , we observed induction of DNA - binding activity in nuclear extracts from hypoxic lung and HeLa cells because of activation of Egr - 1 , by means of supershift analysis .
answer:

Egr - 1