Project description:Cordyceps militaris and Cordyceps sinensis belong to belong to the same genus, but the different species, with immunity improvement, antibacterial, and antihypertensive effect, and the studies on the functions of Cordyceps militaris mainly focus on those of its polysaccharides and polypeptides. The latest studies have found that some of the polypeptides with immunomodulatory effect can widely regulate immune functions at multiple levels, improve immunity, and enhance immune functions to ensure the healthy body, showing an important significance. Cordyceps militaris polypeptide prepared with the enzymolysis method was taken as the research object in this study. The differentially expressed genes and the related cell signal transduction pathway were screened by mRNA expression microarray. STEM 1.3.6 software was used for the clustering of the gene functions, and David and KEGG database were applied for the analysis of the related functions. 1748 differentially expressed genes were selected finally and three of them were validated by qPCR. The results showed that gene Hist1h2bp, Ctsg, and Elane were involved in the regulation of Cordyceps militaris on the immune activity of mice. Gene Hist1h2bp, Ctsg and Elan may be the potential targets of Cordyceps militaris polypeptide, which may provide an important theory basis for the further research and development of Cordyceps militaris polypeptide.
