B-cell chronic lymphocytic leukemia (B-CLL), also known as chronic lymphoid leukemia (CLL), is the most common type of leukemia (a type of cancer of the white blood cells) in adults, CLL affects B cell lymphocytes,Immunoglobulin-like transcript-3 (ILT-3), a member of the immunoglobulin superfamily, is a transmembrane inhibitory receptor expressed on antigen-presenting cells (APCs) such as monocytes and dendritic cells (DCs) as well as on endothelial  cells The aims of this study was to evaluate the expression of  ILT-3 in acute and chronic leukamias and its relation to other diagnostic markers and if it has a role in leukamiogenesis A total of 5 papers were obtained using the mentioned keywords in the research of all internet-based databases
Patients and Methods: Case control study, included 30 patients 15 patients with CLLand 15patients no detectable disease recruited from Sohag university hospital and the mean age of each of them was 32.8 years.   There are different method of detection of IL3 in different studies such as PCR, ELISA and (FCM).
Results: The frequency of ILT3 positive CLL B cells was higher in patients with lymphoid tissue involvement, suggesting that ILT3 may have prognostic value in CLL