Results of epidemiological studies show that obesity and type 2 diabetes mellitus have become a public health concern globally, which has substantial health, social and economic impacts. A common characteristic of human obesity and type 2 diabetes is insulin resistance, which a given amount of insulin produces less than normal physiological responses, usually demonstrated as diminished glucose lowering effect of insulin.

Inflammation drives prostate cancer (PCa) progression. While inflammation is a cancer hallmark, the underlying mechanisms mediating inflammation-induced PCa are still under investigation. Interleukin-1 (IL-1) is an inflammatory cytokine that promotes cancer progression, including PCa metastasis and castration resistance. We previously found that acute IL-1 exposure represses PCa androgen receptor (AR) expression concomitant with the upregulation of pro-survival proteins, causing de novo accumulation of castration-resistant PCa cells.

Macrophages are members of the innate immune system; that originate from monocyte cells from the myeloid stem cells. In response to the tissue environment, monocytes differentiate into two subtypes of macrophages, M1, or M2. The M1 or classically activated macrophages (CAM) aggravate immune responses by releasing reactive oxygen species (ROS), and pro-inflammatory cytokines.

The histone deacetylase (HDAC) family consists of epigenetic modifiers that demonstrate anti-inflammatory activities, and hence they might have a substantial role in auto-inflammatory disorders including rheumatoid arthritis (RA). Therefore, the aim of this study is to investigate the expression of HDAC1, HDAC2, and HDAC11 genes in peripheral blood mononuclear cells (PBMCs) of RA cases compared to healthy controls.