Hypoxia most often occurs in cancer and the occurrence of hypoxia helps the cells in adapting different responses than the normal such as the activation of of those signaling pathways which regulate proliferation, angiogenesis, and cell death. There are large number of genes which are known to be associated with diverse biological processes and their control and coordination and in different cancers, the hypoxia-response differs. In this study our goal is to understand the impact of alteration in expression of hypoxia and immune systems related genes and its survival in breast cancer and analyzed the hallmarks of molecular signatures. For this purpose we have collected the hypoxia-associated genes based on the literature related with diverse biological processes and functions. For all these genes, we have studied the survival analysis, breast cancer gene expression profiling, and relevant hypoxic genes alterations. Based on our study, we conclude that there are 17 critical pathways and 40 genes from hypoxic gene list appear to play the major roles in case of breast cancer and overall we observe that immune signaling pathways and its components are highly altered in case of breast cancer. Among the top raked hallmarks of molecular signatures are apoptosis, hypoxia, DNA repair, E2F targets, MYC targets, androgen and estrogen response, and TNFa signaling.
Signaling pathways in control of gastric acid secretion and food‐stomach‐bone axis revealed by gene expression profiling in the stomach of genetically targeted mice deficient in CCK1 receptor and gastrin/CCK2 receptor
