According to a recent study, the immunological markers associated with clinical KS regression after ART treatment seem to be high plasma levels of interleukin (IL)-5 at baseline, whereas increased levels of IL-6 and the chemokine interferon-inducible protein 10 (IP-10) seem to be associated with KS progression [93]. This evidence concerns the gene CXCL10 and Kaposi's sarcoma.