PMID- 30896812 OWN - NLM STAT- MEDLINE DCOM- 20190703 LR - 20190703 IS - 1791-2431 (Electronic) IS - 1021-335X (Linking) VI - 41 IP - 5 DP - 2019 May TI - Role of natural killer cells for immunotherapy in chronic myeloid leukemia (Review). PG - 2625-2635 LID - 10.3892/or.2019.7059 [doi] AB - The majority of natural killer (NK) cells serve an important role in eliminating malignant cells. The cytotoxic effects of NK cells were first identified against leukemia cells, and it is now hypothesized that they may have a critical role in leukemia therapy. The cellular functions of NK cells are mediated by their cell surface receptors, which recognize ligands on cancer cells. The role of NK cells is specifically regulated by the activating or inhibitory killer cell immunoglobulin‑like receptors (KIRs) on their surface, which bind to the human leukocyte antigen (HLA) class I ligands present on the target cells. The association between KIR and HLA is derived from the diversity of KIR/HLA gene profiles present in different individuals, and this determines the cytotoxic effect of NK cells on cancer cells. Chronic myeloid leukemia (CML) is a hematological leukemia characterized by the hyper‑proliferation of myeloid cells, with the majority of patients with CML presenting with abnormal immune cells. Tyrosine kinase inhibitors are the present standard therapy for CML, but are associated with numerous adverse side effects. Various studies have proposed CML therapy by immunotherapeutic approaches targeting the immune cells. This review summarizes the contents of NK cells and the association between KIR/HLA and leukemia, especially CML. This is followed by a discussion on the development of NK cell immunotherapy in hematological malignancies and research into strategies to enhance NK cell function for CML treatment. FAU - Lee, Hye-Rim AU - Lee HR AD - Department of Biomedical Science, CHA University, CHA General Hospital, Seongnam, Gyeonggi 13488, Republic of Korea. FAU - Baek, Kwang-Hyun AU - Baek KH AD - Department of Biomedical Science, CHA University, CHA General Hospital, Seongnam, Gyeonggi 13488, Republic of Korea. LA - eng PT - Journal Article PT - Review DEP - 20190313 PL - Greece TA - Oncol Rep JT - Oncology reports JID - 9422756 RN - 0 (Antineoplastic Agents, Immunological) RN - 0 (Histocompatibility Antigens Class I) RN - 0 (Receptors, KIR) SB - IM MH - Antineoplastic Agents, Immunological/*pharmacology/therapeutic use MH - Cell Proliferation/drug effects MH - Clinical Trials as Topic MH - Histocompatibility Antigens Class I/immunology/metabolism MH - Humans MH - Immunotherapy/*methods MH - Killer Cells, Natural/*drug effects/immunology/metabolism MH - Leukemia, Myelogenous, Chronic, BCR-ABL Positive/*drug therapy/immunology/pathology MH - Receptors, KIR/*antagonists & inhibitors/immunology/metabolism EDAT- 2019/03/22 06:00 MHDA- 2019/07/04 06:00 CRDT- 2019/03/22 06:00 PHST- 2019/01/08 00:00 [received] PHST- 2019/02/06 00:00 [accepted] PHST- 2019/03/22 06:00 [pubmed] PHST- 2019/07/04 06:00 [medline] PHST- 2019/03/22 06:00 [entrez] AID - 10.3892/or.2019.7059 [doi] PST - ppublish SO - Oncol Rep. 2019 May;41(5):2625-2635. doi: 10.3892/or.2019.7059. Epub 2019 Mar 13.