PMID- 27663899 OWN - NLM STAT- MEDLINE DCOM- 20171102 LR - 20220419 IS - 2159-8290 (Electronic) IS - 2159-8274 (Print) IS - 2159-8274 (Linking) VI - 7 IP - 1 DP - 2017 Jan TI - Role of KEAP1/NRF2 and TP53 Mutations in Lung Squamous Cell Carcinoma Development and Radiation Resistance. PG - 86-101 LID - 10.1158/2159-8290.CD-16-0127 [doi] AB - Lung squamous cell carcinoma (LSCC) pathogenesis remains incompletely understood, and biomarkers predicting treatment response remain lacking. Here, we describe novel murine LSCC models driven by loss of Trp53 and Keap1, both of which are frequently mutated in human LSCCs. Homozygous inactivation of Keap1 or Trp53 promoted airway basal stem cell (ABSC) self-renewal, suggesting that mutations in these genes lead to expansion of mutant stem cell clones. Deletion of Trp53 and Keap1 in ABSCs, but not more differentiated tracheal cells, produced tumors recapitulating histologic and molecular features of human LSCCs, indicating that they represent the likely cell of origin in this model. Deletion of Keap1 promoted tumor aggressiveness, metastasis, and resistance to oxidative stress and radiotherapy (RT). KEAP1/NRF2 mutation status predicted risk of local recurrence after RT in patients with non-small lung cancer (NSCLC) and could be noninvasively identified in circulating tumor DNA. Thus, KEAP1/NRF2 mutations could serve as predictive biomarkers for personalization of therapeutic strategies for NSCLCs. SIGNIFICANCE: We developed an LSCC mouse model involving Trp53 and Keap1, which are frequently mutated in human LSCCs. In this model, ABSCs are the cell of origin of these tumors. KEAP1/NRF2 mutations increase radioresistance and predict local tumor recurrence in radiotherapy patients. Our findings are of potential clinical relevance and could lead to personalized treatment strategies for tumors with KEAP1/NRF2 mutations. Cancer Discov; 7(1); 86-101. (c)2016 AACR.This article is highlighted in the In This Issue feature, p. 1. CI - (c)2016 American Association for Cancer Research. FAU - Jeong, Youngtae AU - Jeong Y AD - Stanford Cancer Institute, Stanford University School of Medicine, Stanford, California. AD - Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, California. AD - Department of Radiation Oncology, Stanford University School of Medicine, Stanford, California. FAU - Hoang, Ngoc T AU - Hoang NT AD - Stanford Cancer Institute, Stanford University School of Medicine, Stanford, California. AD - Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, California. AD - Department of Biology, San Francisco State University, San Francisco, California. FAU - Lovejoy, Alexander AU - Lovejoy A AD - Stanford Cancer Institute, Stanford University School of Medicine, Stanford, California. AD - Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, California. FAU - Stehr, Henning AU - Stehr H AD - Stanford Cancer Institute, Stanford University School of Medicine, Stanford, California. FAU - Newman, Aaron M AU - Newman AM AD - Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, California. FAU - Gentles, Andrew J AU - Gentles AJ AD - Stanford Center for Cancer Systems Biology, Stanford University School of Medicine, Stanford, California. AD - Department of Radiology, Stanford University School of Medicine, Stanford, California. FAU - Kong, William AU - Kong W AD - Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, California. FAU - Truong, Diana AU - Truong D AD - Stanford Cancer Institute, Stanford University School of Medicine, Stanford, California. AD - Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, California. AD - Department of Biological Sciences, San Jose State University, San Jose, California. FAU - Martin, Shanique AU - Martin S AD - Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, California. FAU - Chaudhuri, Aadel AU - Chaudhuri A AD - Department of Radiation Oncology, Stanford University School of Medicine, Stanford, California. FAU - Heiser, Diane AU - Heiser D AD - Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, California. FAU - Zhou, Li AU - Zhou L AD - Stanford Cancer Institute, Stanford University School of Medicine, Stanford, California. FAU - Say, Carmen AU - Say C AD - Department of Radiation Oncology, Stanford University School of Medicine, Stanford, California. FAU - Carter, Justin N AU - Carter JN AD - Department of Radiation Oncology, Stanford University School of Medicine, Stanford, California. FAU - Hiniker, Susan M AU - Hiniker SM AD - Department of Radiation Oncology, Stanford University School of Medicine, Stanford, California. FAU - Loo, Billy W Jr AU - Loo BW Jr AD - Stanford Cancer Institute, Stanford University School of Medicine, Stanford, California. AD - Department of Radiation Oncology, Stanford University School of Medicine, Stanford, California. FAU - West, Robert B AU - West RB AD - Department of Pathology, Stanford University School of Medicine, Stanford, California. FAU - Beachy, Philip AU - Beachy P AD - Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, California. AD - Department of Biochemistry, Stanford University School of Medicine, Stanford, California. AD - Howard Hughes Medical Institute, Stanford University School of Medicine, Stanford, California. FAU - Alizadeh, Ash A AU - Alizadeh AA AD - Division of Oncology, Department of Medicine, Stanford University, Stanford, California. FAU - Diehn, Maximilian AU - Diehn M AD - Stanford Cancer Institute, Stanford University School of Medicine, Stanford, California. diehn@stanford.edu. AD - Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, California. AD - Department of Radiation Oncology, Stanford University School of Medicine, Stanford, California. LA - eng GR - DP2 CA186569/CA/NCI NIH HHS/United States GR - T32 CA009302/CA/NCI NIH HHS/United States GR - T32 CA121940/CA/NCI NIH HHS/United States GR - U01 CA194389/CA/NCI NIH HHS/United States GR - P01 CA139490/CA/NCI NIH HHS/United States GR - P30 CA124435/CA/NCI NIH HHS/United States GR - P30 CA147933/CA/NCI NIH HHS/United States GR - R01 CA188298/CA/NCI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20160923 PL - United States TA - Cancer Discov JT - Cancer discovery JID - 101561693 RN - 0 (KEAP1 protein, human) RN - 0 (Kelch-Like ECH-Associated Protein 1) RN - 0 (NF-E2-Related Factor 2) RN - 0 (NFE2L2 protein, human) RN - 0 (TP53 protein, human) RN - 0 (Tumor Suppressor Protein p53) SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - Animals MH - Carcinoma, Squamous Cell/*genetics/pathology/radiotherapy MH - Cell Line, Tumor MH - Cell Self Renewal MH - Disease Models, Animal MH - Female MH - Gene Expression Regulation, Neoplastic MH - Humans MH - Kelch-Like ECH-Associated Protein 1/*genetics MH - Lung Neoplasms/*genetics/pathology/radiotherapy MH - Male MH - Mice MH - Middle Aged MH - Mutation MH - NF-E2-Related Factor 2/*genetics MH - Neoplasm Invasiveness MH - *Radiation Tolerance MH - Stem Cells/cytology/pathology MH - Trachea/cytology/*pathology MH - Tumor Cells, Cultured MH - Tumor Suppressor Protein p53/*genetics PMC - PMC5222718 MID - NIHMS827177 COIS- of potential conflicts of interest - A.M.N., A.A.A., and M.D. are co-inventors on patent applications related to CAPP-Seq. A.L. is currently an employee of Roche. A.M.N., A.A.A., and M.D. are consultants for Roche. Other authors disclose no conflicts of interest. EDAT- 2016/09/25 06:00 MHDA- 2017/11/03 06:00 PMCR- 2018/01/01 CRDT- 2016/09/25 06:00 PHST- 2016/01/28 00:00 [received] PHST- 2016/09/20 00:00 [revised] PHST- 2016/09/22 00:00 [accepted] PHST- 2016/09/25 06:00 [pubmed] PHST- 2017/11/03 06:00 [medline] PHST- 2016/09/25 06:00 [entrez] PHST- 2018/01/01 00:00 [pmc-release] AID - 2159-8290.CD-16-0127 [pii] AID - 10.1158/2159-8290.CD-16-0127 [doi] PST - ppublish SO - Cancer Discov. 2017 Jan;7(1):86-101. doi: 10.1158/2159-8290.CD-16-0127. Epub 2016 Sep 23.