Sp-8-Cl-cAMPS is an analog of cAMP (HY-B1511) and a derivative of Sp-8-Cl-cAMP. Sp-8-Cl-cAMPS inhibits the growth of human leukemia cell HL-60 and colon cancer cell LS-174T, with IC50 of 8-100 μM. Sp-8-Cl-cAMPS activates the protein kinases cAKI and cAKII, with Ka of 0.25 and 3.2 μM[1].
[1] Yokozaki H, et al., Unhydrolyzable analogues of adenosine 3':5'-monophosphate demonstrating growth inhibition and differentiation in human cancer cells. Cancer Res. 1992 May 1;52(9):2504-8. PMID:1314695
