DOCK2 Inhibitor

Cholesterol sulfate is a naturally occurring, orally active cholesterol derivative that is widely distributed in various tissues and body fluids. Cholesterol sulfate acts as a DOCK2 inhibitor, with IC₅₀ values of 2 μM and 2.9 μM against mouse and human targets, respectively. Cholesterol sulfate restricts excessive neutrophil infiltration and alleviates intestinal inflammation and damage. Cholesterol sulfate serves as an activator of protein kinase C (PKC), which promotes squamous cell differentiation and inhibits skin carcinogenesis. Cholesterol sulfate regulates cholesterol homeostasis and cellular metabolism by activating the AMPK-Sirt1 pathway. Cholesterol sulfate can be used in research related to actinic keratitis, ulcerative colitis, skin cancer, and other conditions.

DOCK2-IN-1 (Compound 3) is an analog of CPYPP (HY-110100) and a DOCK2 inhibitor (IC₅₀ = 19.1 μM). DOCK2-IN-1 binds to the DHR-2 domain of DOCK2 and inhibits its mediated Rac guanine nucleotide exchange factor activity. DOCK2-IN-1 blocks chemokine receptor- and antigen receptor-mediated activation of Rac in lymphocytes. DOCK2-IN-1 significantly inhibits chemotaxis and T cell activation. DOCK2-IN-1 can be used in the research of transplant rejection and organ-specific autoimmune diseases.