1
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Li C, Huang Y, Yi X, Tang Y, Okita R, He J. Pan-cancer prognostic model and immune microenvironment analysis of natural killer cell-related genes. Transl Cancer Res 2024; 13:1936-1953. [PMID: 38737690 PMCID: PMC11082681 DOI: 10.21037/tcr-24-434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2024] [Accepted: 04/15/2024] [Indexed: 05/14/2024]
Abstract
Background Natural killer (NK) cells play a significant role in antitumor immunity and are closely related to tumor prognosis and recurrence. NK cell-based tumor immunotherapy, including immune checkpoint inhibition and CAR-engineered NK cells, is a promising area of research. However, there is a need for better NK cell-related models and associated biomarkers. Methods The sequences of NK cell-related genes were obtained from the published NK cell CRISPR/Cas9 library data, and the common genes were selected as NK cell-related genes. The RNA sequencing (RNA-seq) and clinical data of 32 solid tumors from The Cancer Genome Atlas (TCGA) were downloaded from the UCSC Xena database, and the RNA-seq data of normal samples were downloaded from the Genotype-Tissue Expression (GTEx) database. The differentially expressed NK cell-related genes (DENKGs) between the tumor and normal samples were analyzed. The DENKGs related to the prognosis of solid tumors were selected via univariate Cox analysis, and 32 kinds of solid tumor prognostic models were constructed using least absolute shrinkage and selection operator (LASSO) and multivariate Cox analysis. Survival, receiver operating characteristic (ROC), and independent prognostic analyses were employed to test the effectiveness of the model, along with a nomogram model and prediction curve. Differences in the immune pathways and microenvironment cells were analyzed between the high- and low-risk groups identified by the model. Results We constructed a pan-cancer prognostic model with 63 NK cell-related genes and further identified DEPDC1 and ASPM as potentially offering new directions in tumor research by literature screening. Conclusions In this study, 63 prognostic solid tumor markers were investigated using NK cell-related genes, and for the first time, a pan-cancer prognostic model was constructed to analyze their role in the immune microenvironment, which may contribute new insights into tumor research.
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Affiliation(s)
- Caihong Li
- Department of Radiotherapy, The Second Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Yuxin Huang
- Department of Clinical Medicine, Southwest Medical University, Luzhou, China
| | - Xiaojuan Yi
- Department of Clinical Medicine, Southwest Medical University, Luzhou, China
| | - Youpan Tang
- Department of Gastroenterology, Zhongjiang People’s Hospital, Deyang, China
| | - Riki Okita
- Department of Thoracic Surgery, National Hospital Organization Yamaguchi Ube Medical Center, Ube, Japan
| | - Jun He
- Department of Oncology, The Third Hospital of Mian Yang (Sichuan Mental Health Center), Mianyang, China
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2
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Zhang M, Yang H, Fu T, Meng M, Feng Y, Qu C, Li Z, Xing X, Li W, Ye M, Li S, Bu Z, Jia S. Liquid biopsy: circulating tumor DNA monitors neoadjuvant chemotherapy response and prognosis in stage II/III gastric cancer. Mol Oncol 2023; 17:1930-1942. [PMID: 37356061 PMCID: PMC10483607 DOI: 10.1002/1878-0261.13481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 03/09/2023] [Accepted: 06/23/2023] [Indexed: 06/27/2023] Open
Abstract
A good response to neoadjuvant chemotherapy (NACT) is strongly associated with a higher curative resection rate and favorable outcomes for patients with gastric cancer (GC). We examined the utility of serial circulating tumor DNA (ctDNA) testing for monitoring NACT response and prognosis in stage II-III GC. Seventy-nine patients were enrolled to receive two cycles of NACT following gastrectomy with D2-lymphadenectomy. Plasma at baseline, post-NACT, and after surgery, and tissue at pretreatment and surgery were collected. We used a 425-gene panel to detect genomic alterations (GAs). Results show that the mean cell-free DNA concentration of patients with clinical stage III was significantly higher than patients with stage II (15.43 ng·mL-1 vs 14.40 ng·mL-1 ). After receiving NACT and surgery, the overall detection rate of ctDNA gradually reduced (59.5%, 50.8%, and 47.4% for baseline, post-NACT, and postsurgery). The maximum variant allele frequency (max-VAF) and the number of GAs decreased from 0.50% to 0.08% and from 2.9 to 1.7 after NACT. For patients with a partial response after NACT, the max-VAF and the number of GAs declined significantly, but they increased for patients with progressive disease. Patients with detectable ctDNA at baseline, after NACT, or after surgery have a worse overall survival (OS) than patients with undetectable ctDNA. The estimated 3-year OS was 73% for the post-NACT ctDNA-negative patients and 34% for ctDNA-positive. Patients with perpetual negative ctDNA before and after NACT have the best prognosis. In conclusion, ctDNA was proposed as a potential biomarker to predict prognosis and monitor the NACT response for stage II-III GC patients.
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Affiliation(s)
- Meng Zhang
- Center for Molecular Diagnosis, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing)Peking University Cancer Hospital & InstituteBeijingChina
| | - Heli Yang
- Gastrointestinal Cancer Center, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing)Peking University Cancer Hospital & InstituteBeijingChina
| | - Tao Fu
- Gastrointestinal Cancer Center, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing)Peking University Cancer Hospital & InstituteBeijingChina
| | - Meizhu Meng
- Center for Molecular Diagnosis, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing)Peking University Cancer Hospital & InstituteBeijingChina
| | - Yi Feng
- Center for Molecular Diagnosis, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing)Peking University Cancer Hospital & InstituteBeijingChina
| | - Changda Qu
- Center for Molecular Diagnosis, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing)Peking University Cancer Hospital & InstituteBeijingChina
| | - Zhongwu Li
- Department of Pathology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing)Peking University Cancer Hospital & InstituteBeijingChina
| | - Xiaofang Xing
- Department of Gastrointestinal Translational Research, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing)Peking University Cancer Hospital & InstituteBeijingChina
| | - Wenmei Li
- Center for Molecular Diagnosis, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing)Peking University Cancer Hospital & InstituteBeijingChina
| | - Meiying Ye
- Center for Molecular Diagnosis, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing)Peking University Cancer Hospital & InstituteBeijingChina
| | - Sisi Li
- Center for Molecular Diagnosis, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing)Peking University Cancer Hospital & InstituteBeijingChina
| | - Zhaode Bu
- Gastrointestinal Cancer Center, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing)Peking University Cancer Hospital & InstituteBeijingChina
| | - Shuqin Jia
- Center for Molecular Diagnosis, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing)Peking University Cancer Hospital & InstituteBeijingChina
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3
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Kratz A, Kim M, Kelly MR, Zheng F, Koczor CA, Li J, Ono K, Qin Y, Churas C, Chen J, Pillich RT, Park J, Modak M, Collier R, Licon K, Pratt D, Sobol RW, Krogan NJ, Ideker T. A multi-scale map of protein assemblies in the DNA damage response. Cell Syst 2023; 14:447-463.e8. [PMID: 37220749 PMCID: PMC10330685 DOI: 10.1016/j.cels.2023.04.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 01/30/2023] [Accepted: 04/25/2023] [Indexed: 05/25/2023]
Abstract
The DNA damage response (DDR) ensures error-free DNA replication and transcription and is disrupted in numerous diseases. An ongoing challenge is to determine the proteins orchestrating DDR and their organization into complexes, including constitutive interactions and those responding to genomic insult. Here, we use multi-conditional network analysis to systematically map DDR assemblies at multiple scales. Affinity purifications of 21 DDR proteins, with/without genotoxin exposure, are combined with multi-omics data to reveal a hierarchical organization of 605 proteins into 109 assemblies. The map captures canonical repair mechanisms and proposes new DDR-associated proteins extending to stress, transport, and chromatin functions. We find that protein assemblies closely align with genetic dependencies in processing specific genotoxins and that proteins in multiple assemblies typically act in multiple genotoxin responses. Follow-up by DDR functional readouts newly implicates 12 assembly members in double-strand-break repair. The DNA damage response assemblies map is available for interactive visualization and query (ccmi.org/ddram/).
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Affiliation(s)
- Anton Kratz
- University of California San Diego, Department of Medicine, San Diego, CA 92093, USA; The Cancer Cell Map Initiative, San Francisco and La Jolla, CA, USA
| | - Minkyu Kim
- University of California San Francisco, Department of Cellular and Molecular Pharmacology, San Francisco, CA 94158, USA; The J. David Gladstone Institute of Data Science and Biotechnology, San Francisco, CA 94158, USA; Quantitative Biosciences Institute, University of California San Francisco, San Francisco, CA 94158, USA; The Cancer Cell Map Initiative, San Francisco and La Jolla, CA, USA; University of Texas Health Science Center San Antonio, Department of Biochemistry and Structural Biology, San Antonio, TX 78229, USA
| | - Marcus R Kelly
- University of California San Diego, Department of Medicine, San Diego, CA 92093, USA
| | - Fan Zheng
- University of California San Diego, Department of Medicine, San Diego, CA 92093, USA; The Cancer Cell Map Initiative, San Francisco and La Jolla, CA, USA
| | - Christopher A Koczor
- University of South Alabama, Department of Pharmacology and Mitchell Cancer Institute, Mobile, AL 36604, USA
| | - Jianfeng Li
- University of South Alabama, Department of Pharmacology and Mitchell Cancer Institute, Mobile, AL 36604, USA
| | - Keiichiro Ono
- University of California San Diego, Department of Medicine, San Diego, CA 92093, USA
| | - Yue Qin
- University of California San Diego, Department of Medicine, San Diego, CA 92093, USA
| | - Christopher Churas
- University of California San Diego, Department of Medicine, San Diego, CA 92093, USA
| | - Jing Chen
- University of California San Diego, Department of Medicine, San Diego, CA 92093, USA
| | - Rudolf T Pillich
- University of California San Diego, Department of Medicine, San Diego, CA 92093, USA
| | - Jisoo Park
- University of California San Diego, Department of Medicine, San Diego, CA 92093, USA; The Cancer Cell Map Initiative, San Francisco and La Jolla, CA, USA
| | - Maya Modak
- University of California San Francisco, Department of Cellular and Molecular Pharmacology, San Francisco, CA 94158, USA; The J. David Gladstone Institute of Data Science and Biotechnology, San Francisco, CA 94158, USA; Quantitative Biosciences Institute, University of California San Francisco, San Francisco, CA 94158, USA; The Cancer Cell Map Initiative, San Francisco and La Jolla, CA, USA
| | - Rachel Collier
- University of California San Diego, Department of Medicine, San Diego, CA 92093, USA
| | - Kate Licon
- University of California San Diego, Department of Medicine, San Diego, CA 92093, USA
| | - Dexter Pratt
- University of California San Diego, Department of Medicine, San Diego, CA 92093, USA
| | - Robert W Sobol
- University of South Alabama, Department of Pharmacology and Mitchell Cancer Institute, Mobile, AL 36604, USA; Brown University, Department of Pathology and Laboratory Medicine and Legorreta Cancer Center, Providence, RI 02903, USA.
| | - Nevan J Krogan
- University of California San Francisco, Department of Cellular and Molecular Pharmacology, San Francisco, CA 94158, USA; The J. David Gladstone Institute of Data Science and Biotechnology, San Francisco, CA 94158, USA; Quantitative Biosciences Institute, University of California San Francisco, San Francisco, CA 94158, USA; The Cancer Cell Map Initiative, San Francisco and La Jolla, CA, USA.
| | - Trey Ideker
- University of California San Diego, Department of Medicine, San Diego, CA 92093, USA; The Cancer Cell Map Initiative, San Francisco and La Jolla, CA, USA.
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4
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Hu L, Liu M, Tang B, Li Q, Pan BS, Xu C, Lin HK. Posttranslational regulation of liver kinase B1 (LKB1) in human cancer. J Biol Chem 2023; 299:104570. [PMID: 36870679 PMCID: PMC10068580 DOI: 10.1016/j.jbc.2023.104570] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 02/20/2023] [Accepted: 02/22/2023] [Indexed: 03/06/2023] Open
Abstract
Liver kinase B1 (LKB1) is a serine-threonine kinase that participates in multiple cellular and biological processes, including energy metabolism, cell polarity, cell proliferation, cell migration, and many others. LKB1 is initially identified as a germline-mutated causative gene in Peutz-Jeghers syndrome (PJS) and is commonly regarded as a tumor suppressor due to frequent inactivation in a variety of cancers. LKB1 directly binds and activates its downstream kinases including the AMP-activated protein kinase (AMPK) and AMPK-related kinases by phosphorylation, which has been intensively investigated for the past decades. An increasing number of studies has uncovered the posttranslational modifications (PTMs) of LKB1 and consequent changes in its localization, activity, and interaction with substrates. The alteration in LKB1 function as a consequence of genetic mutations and aberrant upstream signaling regulation leads to tumor development and progression. Here, we review current knowledge about the mechanism of LKB1 in cancer and the contributions of PTMs, such as phosphorylation, ubiquitination, SUMOylation, acetylation, prenylation, and others, to the regulation of LKB1 function, offering new insights into the therapeutic strategies in cancer.
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Affiliation(s)
- Lanlin Hu
- Department of Oncology & Cancer Institute, Sichuan Academy of Medical Sciences, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China; Department of Laboratory Medicine and Sichuan Provincial Key Laboratory for Human Disease Gene Study, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China; Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, University of Electronic Science and Technology of China, Chengdu, China
| | - Mingxin Liu
- Department of Oncology & Cancer Institute, Sichuan Academy of Medical Sciences, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China; Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, University of Electronic Science and Technology of China, Chengdu, China
| | - Bo Tang
- Department of Oncology & Cancer Institute, Sichuan Academy of Medical Sciences, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China; Department of Laboratory Medicine and Sichuan Provincial Key Laboratory for Human Disease Gene Study, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China; Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, University of Electronic Science and Technology of China, Chengdu, China
| | - Qiang Li
- Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, University of Electronic Science and Technology of China, Chengdu, China
| | - Bo-Syong Pan
- Department of Cancer Biology, Wake Forest School of Medicine, Winston-Salem, North Carolina, USA
| | - Chuan Xu
- Department of Oncology & Cancer Institute, Sichuan Academy of Medical Sciences, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China; Department of Laboratory Medicine and Sichuan Provincial Key Laboratory for Human Disease Gene Study, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China; Department of Cancer Biology, Wake Forest School of Medicine, Winston-Salem, North Carolina, USA.
| | - Hui-Kuan Lin
- Department of Cancer Biology, Wake Forest School of Medicine, Winston-Salem, North Carolina, USA.
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5
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Tian X, Wang X, Cui Z, Liu J, Huang X, Shi C, Zhang M, Liu T, Du X, Li R, Huang L, Gong D, Tian R, Cao C, Jin P, Zeng Z, Pan G, Xia M, Zhang H, Luo B, Xie Y, Li X, Li T, Wu J, Zhang Q, Chen G, Hu Z. A Fifteen-Gene Classifier to Predict Neoadjuvant Chemotherapy Responses in Patients with Stage IB to IIB Squamous Cervical Cancer. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:2001978. [PMID: 34026427 PMCID: PMC8132153 DOI: 10.1002/advs.202001978] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 02/01/2021] [Indexed: 05/09/2023]
Abstract
Neoadjuvant chemotherapy (NACT) remains an attractive alternative for controlling locally advanced cervical cancer. However, approximately 15-34% of women do not respond to induction therapy. To develop a risk stratification tool, 56 patients with stage IB-IIB cervical cancer are included in 2 research centers from the discovery cohort. Patient-specific somatic mutations led to NACT non-responsiveness are identified by whole-exome sequencing. Next, CRISPR/Cas9-based library screenings are performed based on these genes to confirm their biological contribution to drug resistance. A 15-gene classifier is developed by generalized linear regression analysis combined with the logistic regression model. In an independent validation cohort of 102 patients, the classifier showed good predictive ability with an area under the curve of 0.80 (95% confidence interval (CI), 0.69-0.91). Furthermore, the 15-gene classifier is significantly associated with patient responsiveness to NACT in both univariate (odds ratio, 10.8; 95% CI, 3.55-32.86; p = 2.8 × 10-5) and multivariate analysis (odds ratio, 17.34; 95% CI, 4.04-74.40; p = 1.23 × 10-4) in the validation set. In conclusion, the 15-gene classifier can accurately predict the clinical response to NACT before treatment, representing a promising approach for guiding the selection of appropriate treatment strategies for locally advanced cervical cancer.
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Affiliation(s)
- Xun Tian
- Department of Obstetrics and GynecologyTongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyJiefang Avenue 1095#WuhanHubei430030China
- Department of Obstetrics and GynecologyAcademician expert workstation, The Central Hospital of WuhanTongji Medical CollegeHuazhong University of Science and TechnologyJiefang Avenue 1095#WuhanHubei430030China
| | - Xin Wang
- Department of Obstetrics and GynecologyTongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyJiefang Avenue 1095#WuhanHubei430030China
| | - Zifeng Cui
- Department of Gynecological and OncologyThe First Affiliated Hospital of Sun Yat‐sen UniversityZhongshan 2nd Road, YuexiuGuangzhouGuangdong510080China
| | - Jia Liu
- Department of Obstetrics and GynecologyTongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyJiefang Avenue 1095#WuhanHubei430030China
| | - Xiaoyuan Huang
- Department of Obstetrics and GynecologyTongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyJiefang Avenue 1095#WuhanHubei430030China
| | - Caixia Shi
- Department of Gynecological and OncologyHunan Cancer HospitalThe Affiliated Cancer Hospital of Xiangya School of MedicineCentral South UniversityJiefang Avenue 1095#WuhanHubei430030China
| | - Min Zhang
- NGS Research CenterNovogene Co, LtdBuilding 301, Zone A10 JiuxianqiaoBeijing100015China
| | - Ting Liu
- Department of Obstetrics and GynecologyAcademician expert workstation, The Central Hospital of WuhanTongji Medical CollegeHuazhong University of Science and TechnologyJiefang Avenue 1095#WuhanHubei430030China
| | - Xiaofang Du
- Department of Obstetrics and GynecologyAcademician expert workstation, The Central Hospital of WuhanTongji Medical CollegeHuazhong University of Science and TechnologyJiefang Avenue 1095#WuhanHubei430030China
| | - Rui Li
- Department of Obstetrics and GynecologyAcademician expert workstation, The Central Hospital of WuhanTongji Medical CollegeHuazhong University of Science and TechnologyJiefang Avenue 1095#WuhanHubei430030China
| | - Lei Huang
- Department of Obstetrics and GynecologyAcademician expert workstation, The Central Hospital of WuhanTongji Medical CollegeHuazhong University of Science and TechnologyJiefang Avenue 1095#WuhanHubei430030China
| | - Danni Gong
- Department of Obstetrics and GynecologyAcademician expert workstation, The Central Hospital of WuhanTongji Medical CollegeHuazhong University of Science and TechnologyJiefang Avenue 1095#WuhanHubei430030China
| | - Rui Tian
- Department of Gynecological and OncologyThe First Affiliated Hospital of Sun Yat‐sen UniversityZhongshan 2nd Road, YuexiuGuangzhouGuangdong510080China
| | - Chen Cao
- Department of Obstetrics and GynecologyAcademician expert workstation, The Central Hospital of WuhanTongji Medical CollegeHuazhong University of Science and TechnologyJiefang Avenue 1095#WuhanHubei430030China
| | - Ping Jin
- Department of Obstetrics and GynecologyAcademician expert workstation, The Central Hospital of WuhanTongji Medical CollegeHuazhong University of Science and TechnologyJiefang Avenue 1095#WuhanHubei430030China
| | - Zhen Zeng
- Department of Obstetrics and GynecologyAcademician expert workstation, The Central Hospital of WuhanTongji Medical CollegeHuazhong University of Science and TechnologyJiefang Avenue 1095#WuhanHubei430030China
| | - Guangxin Pan
- Department of Obstetrics and GynecologyAcademician expert workstation, The Central Hospital of WuhanTongji Medical CollegeHuazhong University of Science and TechnologyJiefang Avenue 1095#WuhanHubei430030China
| | - Meng Xia
- Department of Obstetrics and GynecologyAcademician expert workstation, The Central Hospital of WuhanTongji Medical CollegeHuazhong University of Science and TechnologyJiefang Avenue 1095#WuhanHubei430030China
| | - Hongfeng Zhang
- Department of PathologyThe Central Hospital of WuhanTongji Medical CollegeHuazhong University of Science and TechnologyShengli Street 26#, Jiang'an DistrictWuhanHubei430030China
| | - Bo Luo
- Department of PathologyThe Central Hospital of WuhanTongji Medical CollegeHuazhong University of Science and TechnologyShengli Street 26#, Jiang'an DistrictWuhanHubei430030China
| | - Yonghui Xie
- Department of PathologyThe Central Hospital of WuhanTongji Medical CollegeHuazhong University of Science and TechnologyShengli Street 26#, Jiang'an DistrictWuhanHubei430030China
| | - Xiaoming Li
- Department of Obstetrics and GynecologyTongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyJiefang Avenue 1095#WuhanHubei430030China
| | - Tianye Li
- Department of Obstetrics and GynecologyTongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyJiefang Avenue 1095#WuhanHubei430030China
| | - Jun Wu
- NGS Research CenterNovogene Co, LtdBuilding 301, Zone A10 JiuxianqiaoBeijing100015China
| | - Qinghua Zhang
- Department of Obstetrics and GynecologyAcademician expert workstation, The Central Hospital of WuhanTongji Medical CollegeHuazhong University of Science and TechnologyJiefang Avenue 1095#WuhanHubei430030China
| | - Gang Chen
- Department of Obstetrics and GynecologyTongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyJiefang Avenue 1095#WuhanHubei430030China
| | - Zheng Hu
- Department of Obstetrics and GynecologyTongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyJiefang Avenue 1095#WuhanHubei430030China
- Department of Obstetrics and GynecologyAcademician expert workstation, The Central Hospital of WuhanTongji Medical CollegeHuazhong University of Science and TechnologyJiefang Avenue 1095#WuhanHubei430030China
- Department of Gynecological and OncologyThe First Affiliated Hospital of Sun Yat‐sen UniversityZhongshan 2nd Road, YuexiuGuangzhouGuangdong510080China
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6
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Li TT, Zhu HB. LKB1 and cancer: The dual role of metabolic regulation. Biomed Pharmacother 2020; 132:110872. [PMID: 33068936 DOI: 10.1016/j.biopha.2020.110872] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 10/07/2020] [Accepted: 10/07/2020] [Indexed: 02/07/2023] Open
Abstract
Liver kinase B1 (LKB1) is an essential serine/threonine kinase frequently associated with Peutz-Jeghers syndrome (PJS). In this review, we provide an overview of the role of LKB1 in conferring protection to cancer cells against metabolic stress and promoting cancer cell survival and invasion. This carcinogenic effect contradicts the previous conclusion that LKB1 is a tumor suppressor gene. Here we try to explain the contradictory effect of LKB1 on cancer from a metabolic perspective. Upon deletion of LKB1, cancer cells experience increased energy as well as oxidative stress, thereby causing genomic instability. Meanwhile, mutated LKB1 cooperates with other metabolic regulatory genes to promote metabolic reprogramming that subsequently facilitates adaptation to strong metabolic stress, resulting in development of a more aggressive malignant phenotype. We aim to specifically discuss the contradictory role of LKB1 in cancer by reviewing the mechanism of LKB1 with an emphasis on metabolic stress and metabolic reprogramming.
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Affiliation(s)
- Ting-Ting Li
- Department of Gynecology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, Zhejiang Province, China
| | - Hai-Bin Zhu
- Department of Gynecology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, Zhejiang Province, China.
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7
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Liu M, Jiang L, Fu X, Wang W, Ma J, Tian T, Nan K, Liang X. Cytoplasmic liver kinase B1 promotes the growth of human lung adenocarcinoma by enhancing autophagy. Cancer Sci 2018; 109:3055-3067. [PMID: 30033530 PMCID: PMC6172065 DOI: 10.1111/cas.13746] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Revised: 07/14/2018] [Accepted: 07/17/2018] [Indexed: 12/15/2022] Open
Abstract
Liver kinase B1 (LKB1) as a tumor suppression gene that is associated with various kinds of cancers, including lung cancer. In this study, we found that the effect of LKB1 on tumor growth was dependent on its subcellular expression in A549 and HCC827 cells. Full‐length LKB1 decreased the proliferation and clonogenicity of A549‐LKB1 and HCC827‐LKB1 cells, but increased their apoptosis. Opposite effects were observed in A549‐LKB1s and HCC827‐LKB1S cells that overexpressed truncated LKB1 without the nuclear localization sequence. The truncated cytoplasmic LKB1 enhanced the growth of implanted tumors in vivo. The truncated cytoplasmic LKB1 promoted autophagy, which was independent of AMP‐activated protein kinase and mTOR signaling in A549 and HCC827 cells. Further characterization indicated that higher levels of cytoplasmic LKB1 expression were associated with advanced TNM stage and reduced overall survival (OS) in 190 patients with adenocarcinoma. In contrast, high nuclear expression of LKB1 is associated with early TNM stage and longer OS. The high level of cytoplasmic LKB1 expression was an independent risk factor for poor overall survival in patients with adenocarcinoma. Together, our results revealed that cytoplasmic LKB1 promotes the growth of lung adenocarcinoma and could be a prognostic marker for lung adenocarcinoma.
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Affiliation(s)
- Mengjie Liu
- Department of Medical Oncology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Lili Jiang
- Department of Medical Oncology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Xiao Fu
- Department of Medical Oncology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Wenjuan Wang
- Department of Medical Oncology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Jiequn Ma
- 1st Department of Medical Oncology, Shaanxi Provincial Cancer Hospital, Xi'an, China
| | - Tao Tian
- Department of Medical Oncology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Kejun Nan
- Department of Medical Oncology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Xuan Liang
- Department of Medical Oncology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
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8
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Wang YS, Chen J, Cui F, Wang H, Wang S, Hang W, Zeng Q, Quan CS, Zhai YX, Wang JW, Shen XF, Jian YP, Zhao RX, Werle KD, Cui R, Liang J, Li YL, Xu ZX. LKB1 is a DNA damage response protein that regulates cellular sensitivity to PARP inhibitors. Oncotarget 2018; 7:73389-73401. [PMID: 27705915 PMCID: PMC5341986 DOI: 10.18632/oncotarget.12334] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Accepted: 09/17/2016] [Indexed: 12/30/2022] Open
Abstract
Liver kinase B1 (LKB1) functions as a tumor suppressor encoded by STK11, a gene that mutated in Peutz-Jeghers syndrome and in sporadic cancers. Previous studies showed that LKB1 participates in IR- and ROS-induced DNA damage response (DDR). However, the impact of LKB1 mutations on targeted cancer therapy remains unknown. Herein, we demonstrated that LKB1 formed DNA damage-induced nuclear foci and co-localized with ataxia telangiectasia mutated kinase (ATM), γ-H2AX, and breast cancer susceptibility 1 (BRCA1). ATM mediated LKB1 phosphorylation at Thr 363 following the exposure of cells to ionizing radiation (IR). LKB1 interacted with BRCA1, a downstream effector in DDR that is recruited to sites of DNA damage and functions directly in homologous recombination (HR) DNA repair. LKB1 deficient cells exhibited delayed DNA repair due to insufficient HR. Notably, LKB1 deficiency sensitized cells to poly (ADP-ribose) polymerase (PARP) inhibitors. Thus, we have demonstrated a novel function of LKB1 in DNA damage response. Cancer cells lacking LKB1 are more susceptible to DNA damage-based therapy and, in particular, to drugs that further impair DNA repair, such as PARP inhibitors.
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Affiliation(s)
- Yi-Shu Wang
- Key Laboratory of Pathobiology, Ministry of Education, Norman Bethune College of Medicine, Jilin University, Changchun, Jilin 130021, China
| | - Jianfeng Chen
- Division of Hematology and Oncology, Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Fengmei Cui
- Division of Hematology and Oncology, Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Huibo Wang
- Division of Hematology and Oncology, Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Shuai Wang
- Division of Hematology and Oncology, Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Wei Hang
- Division of Hematology and Oncology, Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Qinghua Zeng
- Key Laboratory of Pathobiology, Ministry of Education, Norman Bethune College of Medicine, Jilin University, Changchun, Jilin 130021, China.,Division of Hematology and Oncology, Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Cheng-Shi Quan
- Key Laboratory of Pathobiology, Ministry of Education, Norman Bethune College of Medicine, Jilin University, Changchun, Jilin 130021, China
| | - Ying-Xian Zhai
- Key Laboratory of Pathobiology, Ministry of Education, Norman Bethune College of Medicine, Jilin University, Changchun, Jilin 130021, China
| | - Jian-Wei Wang
- Key Laboratory of Pathobiology, Ministry of Education, Norman Bethune College of Medicine, Jilin University, Changchun, Jilin 130021, China
| | - Xiang-Feng Shen
- Key Laboratory of Pathobiology, Ministry of Education, Norman Bethune College of Medicine, Jilin University, Changchun, Jilin 130021, China
| | - Yong-Ping Jian
- Key Laboratory of Pathobiology, Ministry of Education, Norman Bethune College of Medicine, Jilin University, Changchun, Jilin 130021, China
| | - Rui-Xun Zhao
- Division of Hematology and Oncology, Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Kaitlin D Werle
- Division of Hematology and Oncology, Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Rutao Cui
- Department of Pharmacology and Experimental Therapeutics, Boston University, School of Medicine, Boston, MA 02118, USA
| | - Jiyong Liang
- Department of Systems Biology, UT MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Yu-Lin Li
- Key Laboratory of Pathobiology, Ministry of Education, Norman Bethune College of Medicine, Jilin University, Changchun, Jilin 130021, China
| | - Zhi-Xiang Xu
- Key Laboratory of Pathobiology, Ministry of Education, Norman Bethune College of Medicine, Jilin University, Changchun, Jilin 130021, China.,Division of Hematology and Oncology, Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL 35294, USA
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9
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The mTOR-S6K pathway links growth signalling to DNA damage response by targeting RNF168. Nat Cell Biol 2018; 20:320-331. [PMID: 29403037 PMCID: PMC5826806 DOI: 10.1038/s41556-017-0033-8] [Citation(s) in RCA: 80] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Accepted: 12/22/2017] [Indexed: 01/03/2023]
Abstract
Growth signals, such as extracellular nutrients and growth factors, have substantial effects on genome integrity; however, the direct underlying link remains unclear. Here, we show that the mechanistic target of rapamycin (mTOR)-ribosomal S6 kinase (S6K) pathway, a central regulator of growth signalling, phosphorylates RNF168 at Ser60 to inhibit its E3 ligase activity, accelerate its proteolysis and impair its function in the DNA damage response, leading to accumulated unrepaired DNA and genome instability. Moreover, loss of the tumour suppressor liver kinase B1 (LKB1; also known as STK11) hyperactivates mTOR complex 1 (mTORC1)-S6K signalling and decreases RNF168 expression, resulting in defects in the DNA damage response. Expression of a phospho-deficient RNF168-S60A mutant rescues the DNA damage repair defects and suppresses tumorigenesis caused by Lkb1 loss. These results reveal an important function of mTORC1-S6K signalling in the DNA damage response and suggest a general mechanism that connects cell growth signalling to genome stability control.
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10
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He SS, Chen Y, Wang HZ, Shen XM, Sun P, Dong J, Liao XB, Guo GF, Chen JG, Xia LP, Hu PL, Qiu HJ, Liu SS, Zhou YX, Wang W, Hu WH, Cai XY. Loss of LKB1 Expression Decreases the Survival and Promotes Laryngeal Cancer Metastasis. J Cancer 2017; 8:3548-3554. [PMID: 29151940 PMCID: PMC5687170 DOI: 10.7150/jca.20535] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Accepted: 09/07/2017] [Indexed: 12/15/2022] Open
Abstract
Background: Given recent results indicating that diminished LKB1 expression in laryngeal cancer correlates with shorter survival. We aim to perform an analysis estimate the role of decreased liver kinase B1(LKB1) and in the prognostication of human laryngeal squamous cell carcinoma (LSCC). Methods: We conducted a retrospective study and evaluate the expression of LKB1 and p16INK4a (p16) in 208 clinical advanced-stage LSCC tissue samples by using immunohistochemistry. The specimens were received at Sun Yat-sen University Cancer Center (Guangzhou, China). To evaluate the independent prognostic relevance of LKB1, univariate and multivariate Cox regression models were used, overall survival (OS) and distant metastasis-free survival (DMFS) were compared using the Kaplan-Meier method. Results: Immunohistochemical analyses revealed that 80/208 (38.5%) of the LSCC tissue samples expressed high LKB1. Low LKB1 expression was associated with a significantly shorter OS and DMFS than high LKB1 expression (P = 0.041 and 0.028, respectively; log-rank test), and there was a poorer OS in the p16-positive than p16-negative group. In the subgroup stratified by p16 status, the shorter OS were also seen with low LKB1 expression. Multivariate survival analysis indicated that high LKB1 expression was an independent prognostic factor for OS (hazard ratio [HR]: 1.628, 95% confidence interval [CI]: 1.060-2.500, P = 0.026) and DMFS (HR: 2.182, 95% CI: 1.069-4.456, P = 0.032). Conclusions: Our data indicated that low expression of LKB1 was significantly associated with poor prognosis and it may represent a marker of tumor metastasis in patients with LSCC. When combined with p16, LKB1 was also of prognostic value.
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Affiliation(s)
- Sha-Sha He
- State Key Laboratory of Oncology in South China, Cancer Center, Sun Yat-Sen University, Guangzhou.,Department of Radiation, Cancer Center, Sun Yat-Sen University, Guangzhou, China
| | - Yong Chen
- State Key Laboratory of Oncology in South China, Cancer Center, Sun Yat-Sen University, Guangzhou.,Department of Radiation, Cancer Center, Sun Yat-Sen University, Guangzhou, China
| | - Hong-Zhi Wang
- Department of Radiation Oncology, Cancer Hospital, Chinese Academy of Medical Science, Peking Union Medical College, Beijing 100021, China
| | - Xiao-Ming Shen
- State Key Laboratory of Oncology in South China, Cancer Center, Sun Yat-Sen University, Guangzhou.,Department of Radiology, The First People's Hospital of Foshan (The affiliated Foshan Hospital of Sun Yat-Sen University), Foshan, Guangdong, China
| | - Peng Sun
- State Key Laboratory of Oncology in South China, Cancer Center, Sun Yat-Sen University, Guangzhou.,Department of Pathology, Cancer Center, Sun Yat-Sen University, Guangzhou, China
| | - Jun Dong
- State Key Laboratory of Oncology in South China, Cancer Center, Sun Yat-Sen University, Guangzhou.,Department of VIP Region, Cancer Center, Sun Yat-Sen University, Guangzhou, China
| | - Xin-Biao Liao
- Department of Radiation Oncology, The First Affiliated Hospital of Zhejiang University, Hangzhou, China
| | - Gui-Fang Guo
- State Key Laboratory of Oncology in South China, Cancer Center, Sun Yat-Sen University, Guangzhou.,Department of VIP Region, Cancer Center, Sun Yat-Sen University, Guangzhou, China
| | - Ju-Gao Chen
- State Key Laboratory of Oncology in South China, Cancer Center, Sun Yat-Sen University, Guangzhou
| | - Liang-Ping Xia
- State Key Laboratory of Oncology in South China, Cancer Center, Sun Yat-Sen University, Guangzhou.,Department of VIP Region, Cancer Center, Sun Yat-Sen University, Guangzhou, China
| | - Pei-Li Hu
- State Key Laboratory of Oncology in South China, Cancer Center, Sun Yat-Sen University, Guangzhou.,Department of VIP Region, Cancer Center, Sun Yat-Sen University, Guangzhou, China
| | - Hui-Juan Qiu
- State Key Laboratory of Oncology in South China, Cancer Center, Sun Yat-Sen University, Guangzhou.,Department of VIP Region, Cancer Center, Sun Yat-Sen University, Guangzhou, China
| | - Shou-Sheng Liu
- State Key Laboratory of Oncology in South China, Cancer Center, Sun Yat-Sen University, Guangzhou.,Department of VIP Region, Cancer Center, Sun Yat-Sen University, Guangzhou, China
| | - Yi-Xin Zhou
- State Key Laboratory of Oncology in South China, Cancer Center, Sun Yat-Sen University, Guangzhou.,Department of VIP Region, Cancer Center, Sun Yat-Sen University, Guangzhou, China
| | - Wei Wang
- State Key Laboratory of Oncology in South China, Cancer Center, Sun Yat-Sen University, Guangzhou.,Department of Gastric Surgery, Cancer Center, Sun Yat-Sen University, Guangzhou, China
| | - Wei-Han Hu
- State Key Laboratory of Oncology in South China, Cancer Center, Sun Yat-Sen University, Guangzhou.,Department of Radiation, Cancer Center, Sun Yat-Sen University, Guangzhou, China
| | - Xiu-Yu Cai
- State Key Laboratory of Oncology in South China, Cancer Center, Sun Yat-Sen University, Guangzhou.,Department of VIP Region, Cancer Center, Sun Yat-Sen University, Guangzhou, China
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11
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Hai J, Liu S, Bufe L, Do K, Chen T, Wang X, Ng C, Li S, Tsao MS, Shapiro GI, Wong KK. Synergy of WEE1 and mTOR Inhibition in Mutant KRAS-Driven Lung Cancers. Clin Cancer Res 2017; 23:6993-7005. [PMID: 28821559 DOI: 10.1158/1078-0432.ccr-17-1098] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2017] [Revised: 07/06/2017] [Accepted: 08/10/2017] [Indexed: 12/21/2022]
Abstract
Purpose:KRAS-activating mutations are the most common oncogenic driver in non-small cell lung cancer (NSCLC), but efforts to directly target mutant KRAS have proved a formidable challenge. Therefore, multitargeted therapy may offer a plausible strategy to effectively treat KRAS-driven NSCLCs. Here, we evaluate the efficacy and mechanistic rationale for combining mTOR and WEE1 inhibition as a potential therapy for lung cancers harboring KRAS mutations.Experimental Design: We investigated the synergistic effect of combining mTOR and WEE1 inhibitors on cell viability, apoptosis, and DNA damage repair response using a panel of human KRAS-mutant and wild type NSCLC cell lines and patient-derived xenograft cell lines. Murine autochthonous and human transplant models were used to test the therapeutic efficacy and pharmacodynamic effects of dual treatment.Results: We demonstrate that combined inhibition of mTOR and WEE1 induced potent synergistic cytotoxic effects selectively in KRAS-mutant NSCLC cell lines, delayed human tumor xenograft growth and caused tumor regression in a murine lung adenocarcinoma model. Mechanistically, we show that inhibition of mTOR potentiates WEE1 inhibition by abrogating compensatory activation of DNA repair, exacerbating DNA damage in KRAS-mutant NSCLC, and that this effect is due in part to reduction in cyclin D1.Conclusions: These findings demonstrate that compromised DNA repair underlies the observed potent synergy of WEE1 and mTOR inhibition and support clinical evaluation of this dual therapy for patients with KRAS-mutant lung cancers. Clin Cancer Res; 23(22); 6993-7005. ©2017 AACR.
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Affiliation(s)
- Josephine Hai
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts.,Department of Medicine, Harvard Medical School, Boston, Massachusetts
| | - Shengwu Liu
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts.,Department of Medicine, Harvard Medical School, Boston, Massachusetts
| | - Lauren Bufe
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Khanh Do
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts.,Department of Medicine, Harvard Medical School, Boston, Massachusetts
| | - Ting Chen
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts.,Perlmutter Cancer Center, New York University Langone Medical Center, New York, New York
| | - Xiaoen Wang
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Christine Ng
- Princess Margaret Cancer Centre/University Health Network, Toronto, Ontario, Canada
| | - Shuai Li
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts.,Department of Medicine, Harvard Medical School, Boston, Massachusetts
| | - Ming-Sound Tsao
- Princess Margaret Cancer Centre/University Health Network, Toronto, Ontario, Canada
| | - Geoffrey I Shapiro
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts.,Department of Medicine, Harvard Medical School, Boston, Massachusetts
| | - Kwok-Kin Wong
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts. .,Department of Medicine, Harvard Medical School, Boston, Massachusetts.,Perlmutter Cancer Center, New York University Langone Medical Center, New York, New York
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12
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Richer AL, Cala JM, O'Brien K, Carson VM, Inge LJ, Whitsett TG. WEE1 Kinase Inhibitor AZD1775 Has Preclinical Efficacy in LKB1-Deficient Non–Small Cell Lung Cancer. Cancer Res 2017; 77:4663-4672. [DOI: 10.1158/0008-5472.can-16-3565] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Revised: 03/20/2017] [Accepted: 06/20/2017] [Indexed: 11/16/2022]
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13
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Nielsen FC, van Overeem Hansen T, Sørensen CS. Hereditary breast and ovarian cancer: new genes in confined pathways. Nat Rev Cancer 2016; 16:599-612. [PMID: 27515922 DOI: 10.1038/nrc.2016.72] [Citation(s) in RCA: 252] [Impact Index Per Article: 31.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Genetic abnormalities in the DNA repair genes BRCA1 and BRCA2 predispose to hereditary breast and ovarian cancer (HBOC). However, only approximately 25% of cases of HBOC can be ascribed to BRCA1 and BRCA2 mutations. Recently, exome sequencing has uncovered substantial locus heterogeneity among affected families without BRCA1 or BRCA2 mutations. The new pathogenic variants are rare, posing challenges to estimation of risk attribution through patient cohorts. In this Review article, we examine HBOC genes, focusing on their role in genome maintenance, the possibilities for functional testing of putative causal variants and the clinical application of new HBOC genes in cancer risk management and treatment decision-making.
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Affiliation(s)
- Finn Cilius Nielsen
- Center for Genomic Medicine, Rigshospitalet, University of Copenhagen, 2100 Copenhagen, Denmark
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14
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Tang KJ, Constanzo JD, Venkateswaran N, Melegari M, Ilcheva M, Morales JC, Skoulidis F, Heymach JV, Boothman DA, Scaglioni PP. Focal Adhesion Kinase Regulates the DNA Damage Response and Its Inhibition Radiosensitizes Mutant KRAS Lung Cancer. Clin Cancer Res 2016; 22:5851-5863. [PMID: 27220963 DOI: 10.1158/1078-0432.ccr-15-2603] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Revised: 03/29/2016] [Accepted: 05/08/2016] [Indexed: 12/31/2022]
Abstract
PURPOSE Non-small cell lung cancer (NSCLC) is the leading cause of cancer-related deaths worldwide due to the limited availability of effective therapeutic options. For instance, there are no effective strategies for NSCLCs that harbor mutant KRAS, the most commonly mutated oncogene in NSCLC. Thus, our purpose was to make progress toward the generation of a novel therapeutic strategy for NSCLC. EXPERIMENTAL DESIGN We characterized the effects of suppressing focal adhesion kinase (FAK) by RNA interference (RNAi), CRISPR/CAS9 gene editing or pharmacologic approaches in NSCLC cells and in tumor xenografts. In addition, we tested the effects of suppressing FAK in association with ionizing radiation (IR), a standard-of-care treatment modality. RESULTS FAK is a critical requirement of mutant KRAS NSCLC cells. With functional experiments, we also found that, in mutant KRAS NSCLC cells, FAK inhibition resulted in persistent DNA damage and susceptibility to exposure to IR. Accordingly, administration of IR to FAK-null tumor xenografts causes a profound antitumor effect in vivo CONCLUSIONS: FAK is a novel regulator of DNA damage repair in mutant KRAS NSCLC and its pharmacologic inhibition leads to radiosensitizing effects that could be beneficial in cancer therapy. Our results provide a framework for the rationale clinical testing of FAK inhibitors in NSCLC patients. Clin Cancer Res; 22(23); 5851-63. ©2016 AACR.
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Affiliation(s)
- Ke-Jing Tang
- Department of Pulmonary Medicine, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China.,Department of Medicine, University of Texas Southwestern Medical Center, Dallas, Texas.,Simmons Comprehensive Cancer Center and
| | - Jerfiz D Constanzo
- Department of Medicine, University of Texas Southwestern Medical Center, Dallas, Texas.,Simmons Comprehensive Cancer Center and
| | - Niranjan Venkateswaran
- Department of Medicine, University of Texas Southwestern Medical Center, Dallas, Texas.,Simmons Comprehensive Cancer Center and
| | | | - Mariya Ilcheva
- Simmons Comprehensive Cancer Center and.,Departments of Radiation Oncology and Pharmacology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Julio C Morales
- Simmons Comprehensive Cancer Center and.,Departments of Radiation Oncology and Pharmacology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Ferdinandos Skoulidis
- Department of Thoracic and Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - John V Heymach
- Department of Thoracic and Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - David A Boothman
- Simmons Comprehensive Cancer Center and.,Departments of Radiation Oncology and Pharmacology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Pier Paolo Scaglioni
- Department of Medicine, University of Texas Southwestern Medical Center, Dallas, Texas. .,Simmons Comprehensive Cancer Center and
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15
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Shorning BY, Clarke AR. Energy sensing and cancer: LKB1 function and lessons learnt from Peutz-Jeghers syndrome. Semin Cell Dev Biol 2016; 52:21-9. [PMID: 26877140 DOI: 10.1016/j.semcdb.2016.02.015] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Revised: 02/08/2016] [Accepted: 02/08/2016] [Indexed: 12/31/2022]
Abstract
We describe in this review increasing evidence that loss of LKB1 kinase in Peutz-Jeghers syndrome (PJS) derails the existing natural balance between cell survival and tumour growth suppression. LKB1 deletion can plunge cells into an energy/oxidative stress-induced crisis which leads to the activation of alternative and often carcinogenic pathways to maintain cellular energy levels. It therefore appears that although LKB1 deficiency can suppress oncogenic transformation in the short term, it can ultimately lead to more progressed and malignant phenotypes by driving abnormal cell differentiation, genomic instability and increased tumour heterogeneity.
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Affiliation(s)
- Boris Y Shorning
- European Cancer Stem Cell Research Institute, Cardiff University, Hadyn Ellis Building, Maindy Road, Cardiff, CF24 4HQ, United Kingdom.
| | - Alan R Clarke
- European Cancer Stem Cell Research Institute, Cardiff University, Hadyn Ellis Building, Maindy Road, Cardiff, CF24 4HQ, United Kingdom
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