
Keywords: ET-1; Endothelin-1; CLL; Chronic Lymphocytic Leukemia; ETAR; Endothelin receptor type A; TLR; Toll-like receptor; PBMC; peripheral blood mononuclear cell; GAPDH; Glyceraldehyde 3-phosphate dehydrogenase; MSP; Methylation Specific PCR; FBS; Fetal bovine se