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.

 This suggests the association of E2 - receptor expression with control of growth rather than cell maturation .
E2 - receptor

 Functional characterization of the two alternative promoters of human p45 NF - E2 gene .
alternative promoters

 BACKGROUND : Expression of pro - inflammatory cytokines is increased in the intestinal lamina propria of patients with inflammatory bowel disease ( IBD ) .

inflammatory cytokines