GO enrichment analysis revealed that genes differentially expressed between the subcutaneous adipose tissue of PCOS and control patients were mainly involved in the immune responses such as Toll-like receptor 2 signaling pathway, regulation of B-cell activation, macrophage activation, lymphocyte activation involved in immune response, positive regulation of inflammatory response, and lymphocyte differentiation (Figure 5C). Here, TLR2 is linked to polycystic ovary syndrome.