Objective To investigate the prognosis,expression of histone acetylation and its correlation with immune infiltration in colon cancer.Methods Univariate and multivariate Cox regression and Kaplan-Meier curve were utilized to evaluate the relationship between HDAC8 gene expression and prognosis of COAD patients.GO enrichment analysis was performed for the potential role of HDAC8 in colon cancer.The connection between HDAC8 and tumor infiltrating immune cells was analyzed based on ESTIMATE,CIBERSORT and ssGSEA.Results Cluster analysis results showed that three acetylation modification subgroups were identified.The highly expressed HDAC8 in Group3 was upregulated in colon cancer tissues and associated with poor prognosis.HDAC8 was closely associated with tumor immune microenvironment such as stromal,immune scores and tumor purity.HDAC8 expression indicated significantly negative correlations with the infiltration of cells such as dendritic cells,CD8+T cells,B cells and NK cells.It was negatively correlated with the activation,maturation,cytotoxicity and costimulatory scores of dendritic cell and CD8+T cells.Conclusions The expression of HDAC8 is closely related to the prognosis of colon cancer patients.It may affect the maturation of dendritic cells and T cells,participate in the formation of dysfunctional immune microenvironment in tumor tissues,and regulate the development of colon cancer.
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