PMID- 28479419 OWN - NLM STAT- MEDLINE DCOM- 20170929 LR - 20211204 IS - 1873-2399 (Electronic) IS - 0301-472X (Print) IS - 0301-472X (Linking) VI - 53 DP - 2017 Sep TI - Novel tumor-suppressor function of KLF4 in pediatric T-cell acute lymphoblastic leukemia. PG - 16-25 LID - S0301-472X(17)30141-8 [pii] LID - 10.1016/j.exphem.2017.04.009 [doi] AB - Acute lymphoblastic leukemia (ALL) is the most common hematological malignancy in pediatric patients. Despite advances in the treatment of this disease, many children with T-cell ALL (T-ALL) die from disease relapse due to low responses to standard chemotherapy and the lack of a targeted therapy that selectively eradicates the chemoresistant leukemia-initiating cells (LICs) responsible for disease recurrence. We reported recently that the reprogramming factor Kruppel-like factor 4 (KLF4) has a tumor-suppressive function in children with T-ALL. KLF4 silencing by promoter deoxyribonucleic acid (DNA) methylation in patients with T-ALL leads to aberrant activation of the mitogen-activated protein kinase kinase MAP2K7 and the downstream c-Jun NH(2)-terminal kinase (JNK) pathway that controls the expansion of leukemia cells via c-Jun and activating transcription factor 2. This pathway can be inhibited with small molecules and therefore has the potential to eliminate LICs and eradicate disease in combination with standard therapy for patients with refractory and relapsed disease. The present review summarizes the role of the KLF4-MAP2K7 pathway in T-ALL pathogenesis and the function of JNK and MAP2K7 in carcinogenesis and therapy. CI - Copyright (c) 2017 ISEH - International Society for Experimental Hematology. Published by Elsevier Inc. All rights reserved. FAU - Shen, Ye AU - Shen Y AD - Department of Pathology and Immunology, Baylor College of Medicine, Texas Children's Hospital, Houston, TX. FAU - Chen, Taylor J AU - Chen TJ AD - Department of Pathology and Immunology, Baylor College of Medicine, Texas Children's Hospital, Houston, TX. FAU - Lacorazza, H Daniel AU - Lacorazza HD AD - Department of Pathology and Immunology, Baylor College of Medicine, Texas Children's Hospital, Houston, TX. Electronic address: hdl@bcm.edu. LA - eng GR - R01 CA207086/CA/NCI NIH HHS/United States GR - T32 GM008231/GM/NIGMS NIH HHS/United States PT - Journal Article PT - Review DEP - 20170504 PL - Netherlands TA - Exp Hematol JT - Experimental hematology JID - 0402313 RN - 0 (KLF4 protein, human) RN - 0 (Kruppel-Like Factor 4) RN - 0 (Kruppel-Like Transcription Factors) RN - 0 (Tumor Suppressor Protein p53) RN - 0 (Tumor Suppressor Proteins) RN - EC 2.7.11.24 (JNK Mitogen-Activated Protein Kinases) RN - EC 2.7.12.2 (MAP Kinase Kinase 7) RN - EC 2.7.12.2 (MAP2K7 protein, human) SB - IM MH - Child MH - Humans MH - JNK Mitogen-Activated Protein Kinases/physiology MH - Kruppel-Like Factor 4 MH - Kruppel-Like Transcription Factors/*physiology MH - MAP Kinase Kinase 7/physiology MH - MAP Kinase Signaling System MH - Precursor T-Cell Lymphoblastic Leukemia-Lymphoma/drug therapy/*etiology MH - Tumor Suppressor Protein p53/physiology MH - Tumor Suppressor Proteins/*physiology PMC - PMC5568468 MID - NIHMS873769 EDAT- 2017/05/10 06:00 MHDA- 2017/09/30 06:00 PMCR- 2018/09/01 CRDT- 2017/05/09 06:00 PHST- 2017/03/22 00:00 [received] PHST- 2017/04/21 00:00 [revised] PHST- 2017/04/22 00:00 [accepted] PHST- 2017/05/10 06:00 [pubmed] PHST- 2017/09/30 06:00 [medline] PHST- 2017/05/09 06:00 [entrez] PHST- 2018/09/01 00:00 [pmc-release] AID - S0301-472X(17)30141-8 [pii] AID - 10.1016/j.exphem.2017.04.009 [doi] PST - ppublish SO - Exp Hematol. 2017 Sep;53:16-25. doi: 10.1016/j.exphem.2017.04.009. Epub 2017 May 4.