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Chen Y, Zhou X, Huang C, Li L, Qin Y, Tian Z, He J, Liu H. LncRNA PART1 promotes cell proliferation and progression in non-small-cell lung cancer cells via sponging miR-17-5p. J Cell Biochem 2021; 122:315-325. [PMID: 33368623 DOI: 10.1002/jcb.29714] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Accepted: 02/12/2020] [Indexed: 12/14/2022]
Abstract
It has been demonstrated in previous studies that lncPART1 is dysregulated in non-small cell lung cancer (NSCLC). However, the function of lncPART1 in NSCLC is unclear. Therefore, this experimental design was based on LncPART1 to explore the pathogenesis of NSCLC. Real-time polymerase chain reaction was used to detect the expression of lncPART1 and miR-17-5p in NSCLC. Cell Counting Kit -8, colony formation, and transwell assays were used to examine the effects of lncPART1 and miR-17-5p on NSCLC cell proliferation and migration invasiveness. Target gene prediction, luciferase reporter assays were used to validate downstream target genes for lncPART1 and miR-17-5p. Western blot analysis was used to detect the expression of TGFBETAR2. LncPART1 was highly expressed in NSCLC. LncPART1 significantly promoted cell proliferation of NSCLC cells. miR-17-5p was down-expressed in NSCLC. miR-17-5p overexpression inhibited cell proliferation and migration invasion in NSCLC cells. LncPART1 was able to inhibit miR-17-5p expression and upregulate the expression level of TGFBETAR2. The results of in vivo animal models confirmed that lncPART1 promoted NSCLC progression by miR-17-5p/TGFBETAR2 axis. LncPART1 promoted the progression of NSCLC by miR-17-5p/TGFBETAR2 axis.
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Affiliation(s)
- Yeye Chen
- Department of Thoracic Surgery, Peking Union Medical College Hospital, Beijing, China
- Graduate School of Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Xiaoyun Zhou
- Department of Thoracic Surgery, Peking Union Medical College Hospital, Beijing, China
- Graduate School of Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Cheng Huang
- Department of Thoracic Surgery, Peking Union Medical College Hospital, Beijing, China
- Graduate School of Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Li Li
- Department of Thoracic Surgery, Peking Union Medical College Hospital, Beijing, China
- Graduate School of Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Yingzhi Qin
- Department of Thoracic Surgery, Peking Union Medical College Hospital, Beijing, China
- Graduate School of Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Zhenhuan Tian
- Department of Thoracic Surgery, Peking Union Medical College Hospital, Beijing, China
- Graduate School of Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Jia He
- Department of Thoracic Surgery, Peking Union Medical College Hospital, Beijing, China
- Graduate School of Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Hongsheng Liu
- Department of Thoracic Surgery, Peking Union Medical College Hospital, Beijing, China
- Graduate School of Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
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Chen K, Yu X, Zhang F, Xu Y, Zhang P, Huang Z, Fan Y. Applicability of the lung-molGPA index in non-small cell lung cancer patients with different gene alterations and brain metastases. Lung Cancer 2018; 125:8-13. [PMID: 30429042 DOI: 10.1016/j.lungcan.2018.08.023] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2018] [Revised: 08/24/2018] [Accepted: 08/27/2018] [Indexed: 11/15/2022]
Abstract
OBJECTIVES The Lung-molGPA index is based on the original diagnosis-specific graded prognostic assessment (DS-GPA) and incorporates recently reported gene alteration data, predicting the outcomes of non-small cell lung cancer (NSCLC) patients with brain metastases (BM). However, the prognostic values of both DS-GPA and Lung-molGPA remain undetermined, especially for patients with different molecular types. MATERIALS AND METHODS A total of 1184 NSCLC patients with BM were analyzed for clinical factors and outcomes at Zhejiang Cancer Hospital, China. All prognostic factors were weighted for significance by hazard ratios. The applicability of DS-GPA and Lung-molGPA were reappraised in NSCLC patients with BM and various genetic profiles. Additionally, a modified Lung-molGPA was newly developed for NSCLC patients with gene variations. RESULTS NSCLC patients in the present study had a median survival time of 14.0 months from BM diagnosis. Both the DS-GPA and Lung-molGPA models could effectively predict the outcomes of NSCLC patients with BM (P < 0.001), and the Lung-molGPA model appeared to deliver more accurate predictions. Furthermore, Lung-molGPA scores demonstrated discriminatory capability in patients with gene variations (P < 0.001), and no significant difference was reached in wild-type patients (P = 0.133). Regarding oncogene-positive NSCLC patients with BM, a modified Lung-molGPA index was established based on the prognostic factors with a C-index of 0.73 (95% CI: 0.68-0.80) to accurately calculate survival probability (P < 0.001). CONCLUSIONS In the era of precision medicine, Lung-molGPA accurately predicted the prognosis of NSCLC patients with mutant genotypes and BM, although it did not perform well in wild-type patients. Thus, it is worthwhile to explore the prognostic model for patients with positive driving genes.
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Affiliation(s)
- Kaiyan Chen
- Department of Chemotherapy, Zhejiang Cancer Hospital, Hangzhou, 310022, China
| | - Xiaoqing Yu
- Department of Chemotherapy, Zhejiang Cancer Hospital, Hangzhou, 310022, China; Department of Oncology, The Second Clinical Medical College of Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Fanrong Zhang
- Key Laboratory Diagnosis and Treatment Technology on Thoracic Oncology and Cancer Research Institute, Hangzhou, 310022, China
| | - Yanjun Xu
- Department of Chemotherapy, Zhejiang Cancer Hospital, Hangzhou, 310022, China
| | - Peng Zhang
- Department of Chemotherapy, Zhejiang Cancer Hospital, Hangzhou, 310022, China
| | - Zhiyu Huang
- Department of Chemotherapy, Zhejiang Cancer Hospital, Hangzhou, 310022, China
| | - Yun Fan
- Department of Chemotherapy, Zhejiang Cancer Hospital, Hangzhou, 310022, China; Key Laboratory Diagnosis and Treatment Technology on Thoracic Oncology and Cancer Research Institute, Hangzhou, 310022, China.
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Rihawi K, Gelsomino F, Sperandi F, Melotti B, Fiorentino M, Casolari L, Ardizzoni A. Pembrolizumab in the treatment of metastatic non-small cell lung cancer: a review of current evidence. Ther Adv Respir Dis 2017; 11:353-373. [PMID: 28818019 PMCID: PMC5933587 DOI: 10.1177/1753465817725486] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Accepted: 07/20/2017] [Indexed: 12/20/2022] Open
Abstract
Immune checkpoint inhibitors (ICPIs) are considered one of the most important breakthroughs in cancer treatment of the past decade; notably, different studies of programmed cell death protein 1 (PD-1) and programmed death-ligand 1 (PD-L1) inhibitors have reported impressive clinical activity and durable responses in patients with advanced non-small cell lung cancer (NSCLC). These findings have led to the changing of the current therapeutic algorithm of advanced NSCLC, adding a new standard first-line treatment option for patients with PD-L1-positive tumors. Pembrolizumab, a highly selective anti-PD-1 humanized monoclonal antibody, was approved by the United States Food and Drug Administration (US FDA) in October 2016 for previously untreated metastatic NSCLC patients whose tumors have high PD-L1 expression, tumor proportion score (TPS) ⩾ 50%, as well as for metastatic NSCLC patients whose tumors express PD-L1 with TPS ⩾ 1% progressing on or after platinum-based chemotherapy. However, many issues remain outstanding, mainly regarding the identification of an optimal biomarker which can help selecting patients more likely to respond to ICPIs. In this review, we discuss the clinical results obtained so far with the anti-PD-1 pembrolizumab in advanced NSCLC, commenting on the role of PD-L1 as a predictive factor and providing an update of the future perspectives.
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Affiliation(s)
| | - Francesco Gelsomino
- Policlinico S. Orsola - Malpighi, Via Albertoni
15, 40138 Bologna (BO), Italy
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Tang N, Wang Z. Comparison of bevacizumab plus chemotherapy with chemotherapy alone in advanced non-small-lung cancer patients. Onco Targets Ther 2016; 9:4671-9. [PMID: 27536131 PMCID: PMC4973774 DOI: 10.2147/ott.s110339] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Bevacizumab plus chemotherapy was approved by the US Food and Drug Administration (FDA) as a first-line treatment for advanced nonsquamous, non-small-cell lung cancer (NSCLC) in 2006. This study retrospectively compared the efficacy of bevacizumab plus chemotherapy with chemotherapy alone as the first-line and second-line treatment as well as the maintenance treatment for advanced NSCLC patients. A total of 1,352 patients were included and we analyzed the efficacy evaluation according to the criteria of the Response Evaluation Criteria In Solid Tumors (RECIST), survival, and adverse reactions. The data showed that for bevacizumab plus chemotherapy as the first-line treatment, the median progression-free survival (mPFS) and median overall survival (mOS) were 11.5 and 17.0 months, respectively, compared to 7.0 and 14 months, respectively, in patients who received chemotherapy alone (P<0.01). With bevacizumab plus chemotherapy as maintenance treatment, the mPFS and mOS were 6.0 and 17.4 months, respectively, compared to 3.0 and 15.0 months, respectively, with chemotherapy alone (P<0.01). With bevacizumab plus chemotherapy as the second-line treatment, the mPFS was 3.0 months compared to only 2.0 months with chemotherapy alone (P<0.01). The overall responses to the different regimens showed that the remission rate with bevacizumab plus chemotherapy was higher than that with chemotherapy alone (31.8% vs 25.5%, P<0.05), although there was no statistical difference in the disease control rate with either first- or second-line treatment. In conclusion, chemotherapy plus bevacizumab as the first-line and maintenance treatment, led to better curative rates and tolerable adverse reactions compared with chemotherapy alone in advanced NSCLC patients. Bevacizumab combined with cytotoxic drugs was suitable as the second-line treatment for such patients.
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Affiliation(s)
- Ning Tang
- Department of Oncology, Shandong Cancer Hospital and Institute, Jinan, Shandong, People's Republic of China
| | - Zhehai Wang
- Department of Oncology, Shandong Cancer Hospital and Institute, Jinan, Shandong, People's Republic of China
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Abstract
Inhibitors that impact function of kinases are valuable both for the biological research as well as therapy of kinase-associated diseases, such as different cancers. There are quite a number of inhibitors, which are quite specific for certain kinases and several of them are either already approved for the cancer therapy or are in clinical studies of various phases. However, that does not mean that each single kinase inhibitor is suitable for targeted therapy. Some of them are not effective others might be toxic or fail some other criteria for the use in vivo. On the other hand, even in case of successful therapy, many responders eventually develop resistance to the inhibitors. The limitations of various single kinase inhibitors can be fought using compounds which target multiple kinases. This tactics can increase effectiveness of the inhibitors by the synergistic effect or help to diminish the likelihood of drug resistance. To date, several families of kinases are quite popular targets of the inhibition in cancers, such as tyrosine kinases, cycle-dependent kinases, mitogen-activated protein kinases, phosphoinositide 3-kinases as well as their pathway "players" and aurora kinases. Aurora kinases play an important role in the control of the mitosis and are often altered in diverse human cancers. Here, we will describe the most interesting multi-kinase inhibitors which inhibit aurora kinases among other targets and their use in preclinical and clinical cancer studies.
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Affiliation(s)
- Jonas Cicenas
- University of Bern, Vetsuisse Faculty, Institute of Animal Pathology, 3012, Bern, Switzerland.
- MAP Kinase Resource, Melchiorstrasse 9, 3027, Bern, Switzerland.
- Proteomics Centre, Vilnius University Institute of Biochemistry, 08662, Vilnius, Lithuania.
- CALIPHO, Swiss Institute of Bioinformatics, CMU1, ru Michael Servet, 1211, Geneva, Switzerland.
| | - Erikas Cicenas
- Bethlehemacker Secondary School, 3027, Bern, Switzerland
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Gridelli C, Besse B, Brahmer JR, Crinò L, Felip E, de Marinis F. The Evolving Role of Nivolumab in Non-Small-Cell Lung Cancer for Second-Line Treatment: A New Cornerstone for Our Treatment Algorithms. Results From an International Experts Panel Meeting of the Italian Association of Thoracic Oncology. Clin Lung Cancer 2016; 17:161-8. [PMID: 26908078 DOI: 10.1016/j.cllc.2016.01.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Revised: 01/13/2016] [Accepted: 01/19/2016] [Indexed: 01/21/2023]
Abstract
Lung cancer is the leading cause of death from cancer worldwide that currently has only a few available treatment options in patients with no driver mutations. The therapeutic options for patients with non-small-cell lung cancer (NSCLC) who progress after first-line chemotherapy have been limited from a long time. Docetaxel has remained a cornerstone of second-line treatment for more than 20 years, but it is associated with an unfavorable safety profile. Recently, the results from immunotherapy treatment with anti-PD1 and PD-L1 inhibitors has changed our current knowledge base and increased therapeutic options for patients with NSCLC in the second-line setting. The results of 2 randomized phase III trials assessing nivolumab in lung cancer, Check-Mate-017 and Check-Mate-057, have deeply changed our current clinical practice and raised several discussion points. This paper explores the recent findings about nivolumab for the treatment of NSCLC in the second-line setting by analyzing recent trial findings and discussing their implications in clinical practice and future directions. The paper also summarizes the conclusions from an International Experts Panel Meeting of the Italian Association of Thoracic Oncology.
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Affiliation(s)
- Cesare Gridelli
- Division of Medical Oncology, S.G. Moscati Hospital, Avellino, Italy.
| | - Benjamin Besse
- Department of Cancer Medicine, Gustave-Roussy, Villejuif, Université Paris Sud, Paris, France
| | | | - Lucio Crinò
- Division of Medical Oncology, Santa Maria della Misericordia Hospital, Perugia, Italy
| | - Enriqueta Felip
- Institut d'Oncologia, Vall d'Hebron University Hospital, Barcelona, Spain
| | - Filippo de Marinis
- Division of Thoracic Oncology, European Insitute of Oncology, Milan, Italy
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Yao S, Qian K, Wang R, Li Y, Zhang Y. [Comparison of the Efficacy and Safety of Icotinib with Standard Second-line
Chemotherapy in Previously Treated Advanced Non-small Cell Lung Cancer]. ZHONGGUO FEI AI ZA ZHI = CHINESE JOURNAL OF LUNG CANCER 2016; 18:369-73. [PMID: 26104894 PMCID: PMC5999914 DOI: 10.3779/j.issn.1009-3419.2015.06.07] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND AND OBJECTIVE This study compared the efficacy and safety of icotinib with standard second-line chemotherapy (single-agent docetaxel or pemetrexed) in previously treated advanced non-small cell lung cancer (NSCLC). METHODS Thirty-two consecutive patients treated with icotinib and 33 consecutive patients treated with standard second-line chemotherapy in Xuanwu Hospital from January 2012 to July 2013 were enrolled in our retrospective research. The Response Evaluation Criteria in Solid Tumors were used to evaluate the tumor responses, and the progression-free survival (PFS) was evaluated by Kaplan-Meier method. RESULTS Icotinib was comparable with standard second-line chemotherapy for advanced NSCLC in terms of overall response rate (ORR) (28.1% vs 18.2%, P=0.341), disease control rate (DFS)(43.8% vs 45.5%, P=0.890), and PFS (4.3 months vs 3.8 months, P=0.506). In the icotinib group, the ORR of epidermal growth factor receptor (EGFR) mutant was significantly higher than that of EGFR unknown or wild type (P=0.017). In multivariate analysis, age, gender, histology, and the optimum first-line treatment response were dependent prognostic factors based on the PFS of the icotinib group. The incidence of adverse events was significantly fewer in the icotinib group than in the chemotherapy group (P=0.001). CONCLUSIONS Compared with the standard second-line chemotherapy, icotinib is active in the treatment of advanced NSCLC patients, especially with EGFR unknown in the second line, with an acceptable adverse event profile.
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Affiliation(s)
- Shuyang Yao
- Department of Thoracic Surgery, Xuanwu Hospital Capital Medical University, Beijing 100053, China
| | - Kun Qian
- Department of Thoracic Surgery, Xuanwu Hospital Capital Medical University, Beijing 100053, China
| | - Ruotian Wang
- Department of Thoracic Surgery, Xuanwu Hospital Capital Medical University, Beijing 100053, China
| | - Yuanbo Li
- Department of Thoracic Surgery, Xuanwu Hospital Capital Medical University, Beijing 100053, China
| | - Yi Zhang
- Department of Thoracic Surgery, Xuanwu Hospital Capital Medical University, Beijing 100053, China
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8
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Iyengar P, Kavanagh BD, Wardak Z, Smith I, Ahn C, Gerber DE, Dowell J, Hughes R, Abdulrahman R, Camidge DR, Gaspar LE, Doebele RC, Bunn PA, Choy H, Timmerman R. Phase II trial of stereotactic body radiation therapy combined with erlotinib for patients with limited but progressive metastatic non-small-cell lung cancer. J Clin Oncol 2014; 32:3824-30. [PMID: 25349291 DOI: 10.1200/jco.2014.56.7412] [Citation(s) in RCA: 213] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
PURPOSE Patients with stage IV non-small-cell lung cancer (NSCLC) who progress through first-line therapy have poor progression-free survival (PFS) and overall survival (OS), most commonly failing in original sites of gross disease. Cytoreduction with stereotactic body radiation therapy (SBRT) may help systemic agents delay relapse. PATIENTS AND METHODS Patients in our single arm phase II study had stage IV NSCLC with no more than six sites of extracranial disease who failed early systemic chemotherapy and were able to receive SBRT and concurrent erlotinib until disease progression. After erlotinib commencement, SBRT with equipotent fractionation was delivered to all sites of disease. PFS, OS, and other end points were evaluated. RESULTS Twenty-four patients (13 men and 11 women) with a median age of 67 years (range, 56-86 years) were enrolled with median follow-up of 11.6 months. All patients had progressed through platinum-based chemotherapy. A total of 52 sites were treated with 16 of 24 patients receiving SBRT to more than one site. Lung parenchyma was most often irradiated. Median PFS was 14.7 months, and median OS was 20.4 months. Most patients progressed in new distant sites with only three of 47 measurable lesions recurring within the SBRT field. Two grade 3 toxicities were radiation related. Zero of 13 patients tested were positive for an EGFR mutation. CONCLUSION Use of SBRT with erlotinib for unselected patients with stage IV NSCLC as a second- or subsequent line therapy resulted in dramatic changes in patterns of failure, was well tolerated, and resulted in high PFS and OS, substantially greater than historical values for patients who only received systemic agents.
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Affiliation(s)
- Puneeth Iyengar
- Puneeth Iyengar, Zabi Wardak, Irma Smith, Chul Ahn, David E. Gerber, Jonathan Dowell, Randall Hughes, Ramzi Abdulrahman, Hak Choy, Robert Timmerman, University of Texas Southwestern Medical Center, Dallas, TX; Brian D. Kavanagh, D. Ross Camidge, Laurie E. Gaspar, Robert C. Doebele, and Paul A. Bunn, University of Colorado School of Medicine, Aurora, CO
| | - Brian D Kavanagh
- Puneeth Iyengar, Zabi Wardak, Irma Smith, Chul Ahn, David E. Gerber, Jonathan Dowell, Randall Hughes, Ramzi Abdulrahman, Hak Choy, Robert Timmerman, University of Texas Southwestern Medical Center, Dallas, TX; Brian D. Kavanagh, D. Ross Camidge, Laurie E. Gaspar, Robert C. Doebele, and Paul A. Bunn, University of Colorado School of Medicine, Aurora, CO
| | - Zabi Wardak
- Puneeth Iyengar, Zabi Wardak, Irma Smith, Chul Ahn, David E. Gerber, Jonathan Dowell, Randall Hughes, Ramzi Abdulrahman, Hak Choy, Robert Timmerman, University of Texas Southwestern Medical Center, Dallas, TX; Brian D. Kavanagh, D. Ross Camidge, Laurie E. Gaspar, Robert C. Doebele, and Paul A. Bunn, University of Colorado School of Medicine, Aurora, CO
| | - Irma Smith
- Puneeth Iyengar, Zabi Wardak, Irma Smith, Chul Ahn, David E. Gerber, Jonathan Dowell, Randall Hughes, Ramzi Abdulrahman, Hak Choy, Robert Timmerman, University of Texas Southwestern Medical Center, Dallas, TX; Brian D. Kavanagh, D. Ross Camidge, Laurie E. Gaspar, Robert C. Doebele, and Paul A. Bunn, University of Colorado School of Medicine, Aurora, CO
| | - Chul Ahn
- Puneeth Iyengar, Zabi Wardak, Irma Smith, Chul Ahn, David E. Gerber, Jonathan Dowell, Randall Hughes, Ramzi Abdulrahman, Hak Choy, Robert Timmerman, University of Texas Southwestern Medical Center, Dallas, TX; Brian D. Kavanagh, D. Ross Camidge, Laurie E. Gaspar, Robert C. Doebele, and Paul A. Bunn, University of Colorado School of Medicine, Aurora, CO
| | - David E Gerber
- Puneeth Iyengar, Zabi Wardak, Irma Smith, Chul Ahn, David E. Gerber, Jonathan Dowell, Randall Hughes, Ramzi Abdulrahman, Hak Choy, Robert Timmerman, University of Texas Southwestern Medical Center, Dallas, TX; Brian D. Kavanagh, D. Ross Camidge, Laurie E. Gaspar, Robert C. Doebele, and Paul A. Bunn, University of Colorado School of Medicine, Aurora, CO
| | - Jonathan Dowell
- Puneeth Iyengar, Zabi Wardak, Irma Smith, Chul Ahn, David E. Gerber, Jonathan Dowell, Randall Hughes, Ramzi Abdulrahman, Hak Choy, Robert Timmerman, University of Texas Southwestern Medical Center, Dallas, TX; Brian D. Kavanagh, D. Ross Camidge, Laurie E. Gaspar, Robert C. Doebele, and Paul A. Bunn, University of Colorado School of Medicine, Aurora, CO
| | - Randall Hughes
- Puneeth Iyengar, Zabi Wardak, Irma Smith, Chul Ahn, David E. Gerber, Jonathan Dowell, Randall Hughes, Ramzi Abdulrahman, Hak Choy, Robert Timmerman, University of Texas Southwestern Medical Center, Dallas, TX; Brian D. Kavanagh, D. Ross Camidge, Laurie E. Gaspar, Robert C. Doebele, and Paul A. Bunn, University of Colorado School of Medicine, Aurora, CO
| | - Ramzi Abdulrahman
- Puneeth Iyengar, Zabi Wardak, Irma Smith, Chul Ahn, David E. Gerber, Jonathan Dowell, Randall Hughes, Ramzi Abdulrahman, Hak Choy, Robert Timmerman, University of Texas Southwestern Medical Center, Dallas, TX; Brian D. Kavanagh, D. Ross Camidge, Laurie E. Gaspar, Robert C. Doebele, and Paul A. Bunn, University of Colorado School of Medicine, Aurora, CO
| | - D Ross Camidge
- Puneeth Iyengar, Zabi Wardak, Irma Smith, Chul Ahn, David E. Gerber, Jonathan Dowell, Randall Hughes, Ramzi Abdulrahman, Hak Choy, Robert Timmerman, University of Texas Southwestern Medical Center, Dallas, TX; Brian D. Kavanagh, D. Ross Camidge, Laurie E. Gaspar, Robert C. Doebele, and Paul A. Bunn, University of Colorado School of Medicine, Aurora, CO
| | - Laurie E Gaspar
- Puneeth Iyengar, Zabi Wardak, Irma Smith, Chul Ahn, David E. Gerber, Jonathan Dowell, Randall Hughes, Ramzi Abdulrahman, Hak Choy, Robert Timmerman, University of Texas Southwestern Medical Center, Dallas, TX; Brian D. Kavanagh, D. Ross Camidge, Laurie E. Gaspar, Robert C. Doebele, and Paul A. Bunn, University of Colorado School of Medicine, Aurora, CO
| | - Robert C Doebele
- Puneeth Iyengar, Zabi Wardak, Irma Smith, Chul Ahn, David E. Gerber, Jonathan Dowell, Randall Hughes, Ramzi Abdulrahman, Hak Choy, Robert Timmerman, University of Texas Southwestern Medical Center, Dallas, TX; Brian D. Kavanagh, D. Ross Camidge, Laurie E. Gaspar, Robert C. Doebele, and Paul A. Bunn, University of Colorado School of Medicine, Aurora, CO
| | - Paul A Bunn
- Puneeth Iyengar, Zabi Wardak, Irma Smith, Chul Ahn, David E. Gerber, Jonathan Dowell, Randall Hughes, Ramzi Abdulrahman, Hak Choy, Robert Timmerman, University of Texas Southwestern Medical Center, Dallas, TX; Brian D. Kavanagh, D. Ross Camidge, Laurie E. Gaspar, Robert C. Doebele, and Paul A. Bunn, University of Colorado School of Medicine, Aurora, CO
| | - Hak Choy
- Puneeth Iyengar, Zabi Wardak, Irma Smith, Chul Ahn, David E. Gerber, Jonathan Dowell, Randall Hughes, Ramzi Abdulrahman, Hak Choy, Robert Timmerman, University of Texas Southwestern Medical Center, Dallas, TX; Brian D. Kavanagh, D. Ross Camidge, Laurie E. Gaspar, Robert C. Doebele, and Paul A. Bunn, University of Colorado School of Medicine, Aurora, CO
| | - Robert Timmerman
- Puneeth Iyengar, Zabi Wardak, Irma Smith, Chul Ahn, David E. Gerber, Jonathan Dowell, Randall Hughes, Ramzi Abdulrahman, Hak Choy, Robert Timmerman, University of Texas Southwestern Medical Center, Dallas, TX; Brian D. Kavanagh, D. Ross Camidge, Laurie E. Gaspar, Robert C. Doebele, and Paul A. Bunn, University of Colorado School of Medicine, Aurora, CO.
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Corominas-Faja B, Oliveras-Ferraros C, Cuyàs E, Segura-Carretero A, Joven J, Martin-Castillo B, Barrajón-Catalán E, Micol V, Bosch-Barrera J, Menendez JA. Stem cell-like ALDH(bright) cellular states in EGFR-mutant non-small cell lung cancer: a novel mechanism of acquired resistance to erlotinib targetable with the natural polyphenol silibinin. Cell Cycle 2013; 12:3390-404. [PMID: 24047698 DOI: 10.4161/cc.26417] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
The enrichment of cancer stem cell (CSC)-like cellular states has not previously been considered to be a causative mechanism in the generalized progression of EGFR-mutant non-small cell lung carcinomas (NSCLC) after an initial response to the EGFR tyrosine kinase inhibitor erlotinib. To explore this possibility, we utilized a pre-clinical model of acquired erlotinib resistance established by growing NSCLC cells containing a TKI-sensitizing EGFR exon 19 deletion (ΔE746-A750) in the continuous presence of high doses of erlotinib. Genome-wide analyses using Agilent 44K Whole Human Genome Arrays were evaluated via bioinformatics analyses through GSEA-based screening of the KEGG pathway database to identify the molecular circuitries that were over-represented in the transcriptomic signatures of erlotinib-refractory cells. The genomic spaces related to erlotinib resistance included a preponderance of cell cycle genes (E2F1, - 2, CDC2, -6) and DNA replication-related genes (MCM4, - 5, - 6, - 7), most of which are associated with early lung development and poor prognosis. In addition, metabolic genes such as ALDH1A3 (a candidate marker for lung cancer cells with CSC-like properties) were identified. Thus, we measured the proportion of erlotinib-resistant cells expressing very high levels of aldehyde dehydrogenase (ALDH) activity attributed to ALDH1/3 isoforms. Using flow cytometry and the ALDEFLUOR® reagent, we confirmed that erlotinib-refractory cell populations contained drastically higher percentages (> 4500%) of ALDH(bright) cells than the parental erlotinib-responsive cells. Notably, strong decreases in the percentages of ALDH(bright) cells were observed following incubation with silibinin, a bioactive flavonolignan that can circumvent erlotinib resistance in vivo. The number of lung cancer spheres was drastically suppressed by silibinin in a dose-dependent manner, thus confirming the ability of this agent to inhibit the self-renewal of erlotinib-refractory CSC-like cells. This report is the first to show that: (1) loss of responsiveness to erlotinib in EGFR-mutant NSCLC can be explained in terms of erlotinib-refractory ALDH(bright) cells, which have been shown to exhibit stem cell-like properties; and (2) erlotinib-refractory ALDH(bright) cells are sensitive to the natural agent silibinin. Our findings highlight the benefit of administration of silibinin in combination with EGFR TKIs to target CSCs and minimize the ability of tumor cells to escape cell death in EGFR-mutant NSCLC patients.
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Affiliation(s)
- Bruna Corominas-Faja
- Metabolism & Cancer Group; Translational Research Laboratory; Catalan Institute of Oncology; Girona, Catalonia, Spain; Girona Biomedical Research Institute (IDIBGI); Girona, Catalonia, Spain
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Qi WX, Wang Q, Jiang YL, Sun YJ, Tang LN, He AN, Min DL, Lin F, Shen Z, Yao Y. Overall survival benefits for combining targeted therapy as second-line treatment for advanced non-small-cell-lung cancer: a meta-analysis of published data. PLoS One 2013; 8:e55637. [PMID: 23409011 PMCID: PMC3568141 DOI: 10.1371/journal.pone.0055637] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2012] [Accepted: 12/27/2012] [Indexed: 12/04/2022] Open
Abstract
BACKGROUND Combining targeted therapy has been extensively investigated in previously treated advanced non-small-cell lung cancer (NSCLC), but it is still unclear whether combining targeted therapy might offer any benefits against standard monotherapy with erlotinib. We thus performed a meta-analysis of randomized controlled trials to compare the efficacy and safety of combining targeted therapy versus erlotinib alone as second-line treatment for advanced NSCLC. METHODS Several databases were searched, including Pubmed, Embase and Cochrane databases. The endpoints were overall survival (OS), progression-free survival (PFS), overall response rate (ORR) and grade 3 or 4 adverse event (AEs). The pooled hazard ratio (HR) or odds ratio (OR), and 95% confidence intervals (CI) were calculated employing fixed- or random-effects models depending on the heterogeneity of the included trials. RESULTS Eight eligible trials involved 2417 patients were ultimately identified. The intention to treatment (ITT) analysis demonstrated that combining targeted therapy significantly improved OS (HR 0.90, 95% CI: 0.82-0.99, p = 0.024), PFS (HR 0.83, 95% CI: 0.72-0.97, p = 0.018), and ORR (OR 1.35, 95% CI 1.01-1.80, P = 0.04). Sub-group analysis based on phases of trials, EGFR-status and KRAS status also showed that there was a tendency to improve PFS and OS in combining targeted therapy, except that PFS for patients with EGFR-mutation or wild type KRAS favored erlotinib monotherapy. Additionally, more incidence of grade 3 or 4 rash, fatigue and hypertension were observed in combining targeted therapy. CONCLUSIONS With the available evidence, combining targeted therapy seems superior over erlotinib monotherapy as second-line treatment for advanced NSCLC. More studies are still needed to identify patients who will most likely benefit from the appropriate combining targeted therapy.
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Affiliation(s)
- Wei-Xiang Qi
- Department of Oncology, the Sixth People’s Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Qiong Wang
- Department of Oncology, the Sixth People’s Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Yan-Ling Jiang
- Department of Oncology, The Kunming Medical University, Kunming, Yunnan, China
| | - Yuan-Jue Sun
- Department of Oncology, the Sixth People’s Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Li-na Tang
- Department of Oncology, the Sixth People’s Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Ai-na He
- Department of Oncology, the Sixth People’s Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Da-liu Min
- Department of Oncology, the Sixth People’s Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Feng Lin
- Department of Oncology, the Sixth People’s Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Zan Shen
- Department of Oncology, the Sixth People’s Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Yang Yao
- Department of Oncology, the Sixth People’s Hospital, Shanghai Jiao Tong University, Shanghai, China
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Qi WX, Shen Z, Lin F, Sun YJ, Min DL, Tang LN, He AN, Yao Y. Comparison of the Efficacy and Safety of EFGR Tyrosine Kinase Inhibitor Monotherapy with Standard Second-line Chemotherapy in Previously Treated Advanced Non-small-cell Lung Cancer: a Systematic Review and Meta-analysis. Asian Pac J Cancer Prev 2012; 13:5177-82. [DOI: 10.7314/apjcp.2012.13.10.5177] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Ganguli A, Wiegand P, Gao X, Carter JA, Botteman MF, Ray S. The impact of second-line agents on patients’ health-related quality of life in the treatment for non-small cell lung cancer: a systematic review. Qual Life Res 2012; 22:1015-26. [DOI: 10.1007/s11136-012-0229-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/22/2012] [Indexed: 01/05/2023]
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