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Ruiz-Mitjana A, Vidal-Sabanés M, Navaridas R, Perramon-Güell A, Yeramian A, Nicholson-Sabaté N, Egea J, Encinas M, Matias-Guiu X, Dolcet X. Metformin exhibits antineoplastic effects on Pten-deficient endometrial cancer by interfering with TGF-β and p38/ERK MAPK signalling. Biomed Pharmacother 2023; 168:115817. [PMID: 37925934 DOI: 10.1016/j.biopha.2023.115817] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 10/26/2023] [Accepted: 10/30/2023] [Indexed: 11/07/2023] Open
Abstract
Metformin is a widespread antidiabetic agent that is commonly used as a treatment against type 2 diabetes mellitus patients. Regarding its therapeutic potential, multiple studies have concluded that Metformin exhibits antineoplastic activity on several types of cancer, including endometrial carcinoma. Although Metformin's antineoplastic activity is well documented, its cellular and molecular anticancer mechanisms are still a matter of controversy because a plethora of anticancer mechanisms have been proposed for different cancer cell types. In this study, we addressed the cellular and molecular mechanisms of Metformin's antineoplastic activity by using both in vitro and in vivo studies of Pten-loss driven carcinoma mouse models. In vivo, Metformin reduced endometrial neoplasia initiated by Pten-deficiency. Our in vitro studies using Pten-deficient endometrial organoids focused on both cellular and molecular levels in Metformin's tumor suppressive action. At cellular level, we showed that Metformin is involved in not only the proliferation of endometrial epithelial cells but also their regulation via a variety of mechanisms of epithelial-to-mesenchymal transition (EMT) as well as TGF-β-induced apoptosis. At the molecular level, Metformin was shown to affect the TGF-β signalling., a widely known signal that plays a pivotal role in endometrial carcinogenesis. In this respect, Metformin restored TGF-β-induced apoptosis of Pten-deficient endometrial organoids through a p38-dependent mechanism and inhibited TGF-β-induced EMT on no-polarized endometrial epithelial cells by inhibiting ERK/MAPK signalling. These results provide new insights into the link between the cellular and molecular mechanism for Metformin's antineoplastic activity in Pten-deficient endometrial cancers.
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Affiliation(s)
- Anna Ruiz-Mitjana
- Developmental and Oncogenic Signalling Group, Departament de Ciències Mèdiques Bàsiques and Departament de Medicina Experimental, Universitat de Lleida, Institut de Recerca Biomèdica de Lleida, IRBLleida, Lleida, Spain
| | - Maria Vidal-Sabanés
- Developmental and Oncogenic Signalling Group, Departament de Ciències Mèdiques Bàsiques and Departament de Medicina Experimental, Universitat de Lleida, Institut de Recerca Biomèdica de Lleida, IRBLleida, Lleida, Spain
| | - Raúl Navaridas
- Developmental and Oncogenic Signalling Group, Departament de Ciències Mèdiques Bàsiques and Departament de Medicina Experimental, Universitat de Lleida, Institut de Recerca Biomèdica de Lleida, IRBLleida, Lleida, Spain
| | - Aida Perramon-Güell
- Developmental and Oncogenic Signalling Group, Departament de Ciències Mèdiques Bàsiques and Departament de Medicina Experimental, Universitat de Lleida, Institut de Recerca Biomèdica de Lleida, IRBLleida, Lleida, Spain
| | - Andree Yeramian
- Developmental and Oncogenic Signalling Group, Departament de Ciències Mèdiques Bàsiques and Departament de Medicina Experimental, Universitat de Lleida, Institut de Recerca Biomèdica de Lleida, IRBLleida, Lleida, Spain
| | - Nathan Nicholson-Sabaté
- Developmental and Oncogenic Signalling Group, Departament de Ciències Mèdiques Bàsiques and Departament de Medicina Experimental, Universitat de Lleida, Institut de Recerca Biomèdica de Lleida, IRBLleida, Lleida, Spain
| | - Joaquim Egea
- Developmental and Oncogenic Signalling Group, Departament de Ciències Mèdiques Bàsiques and Departament de Medicina Experimental, Universitat de Lleida, Institut de Recerca Biomèdica de Lleida, IRBLleida, Lleida, Spain
| | - Mario Encinas
- Developmental and Oncogenic Signalling Group, Departament de Ciències Mèdiques Bàsiques and Departament de Medicina Experimental, Universitat de Lleida, Institut de Recerca Biomèdica de Lleida, IRBLleida, Lleida, Spain
| | - Xavier Matias-Guiu
- Oncologic Pathology Group, Departament de Ciències Mèdiques Bàsiques, Universitat de Lleida, Institut de Recerca Biomèdica de Lleida, IRBLleida, Lleida, CIBERONC, Spain
| | - Xavier Dolcet
- Developmental and Oncogenic Signalling Group, Departament de Ciències Mèdiques Bàsiques and Departament de Medicina Experimental, Universitat de Lleida, Institut de Recerca Biomèdica de Lleida, IRBLleida, Lleida, Spain.
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2
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Dong Y, Qi Y, Jiang H, Mi T, Zhang Y, Peng C, Li W, Zhang Y, Zhou Y, Zang Y, Li J. The development and benefits of metformin in various diseases. Front Med 2023; 17:388-431. [PMID: 37402952 DOI: 10.1007/s11684-023-0998-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Accepted: 04/01/2023] [Indexed: 07/06/2023]
Abstract
Metformin has been used for the treatment of type II diabetes mellitus for decades due to its safety, low cost, and outstanding hypoglycemic effect clinically. The mechanisms underlying these benefits are complex and still not fully understood. Inhibition of mitochondrial respiratory-chain complex I is the most described downstream mechanism of metformin, leading to reduced ATP production and activation of AMP-activated protein kinase (AMPK). Meanwhile, many novel targets of metformin have been gradually discovered. In recent years, multiple pre-clinical and clinical studies are committed to extend the indications of metformin in addition to diabetes. Herein, we summarized the benefits of metformin in four types of diseases, including metabolic associated diseases, cancer, aging and age-related diseases, neurological disorders. We comprehensively discussed the pharmacokinetic properties and the mechanisms of action, treatment strategies, the clinical application, the potential risk of metformin in various diseases. This review provides a brief summary of the benefits and concerns of metformin, aiming to interest scientists to consider and explore the common and specific mechanisms and guiding for the further research. Although there have been countless studies of metformin, longitudinal research in each field is still much warranted.
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Affiliation(s)
- Ying Dong
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
| | - Yingbei Qi
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
- School of Pharmaceutical Science and Technology, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, 310024, China
| | - Haowen Jiang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
| | - Tian Mi
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
| | - Yunkai Zhang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Chang Peng
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Wanchen Li
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yongmei Zhang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
- School of Pharmaceutical Science and Technology, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, 310024, China
| | - Yubo Zhou
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China.
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan, 528400, China.
| | - Yi Zang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China.
- Lingang Laboratory, Shanghai, 201203, China.
- School of Pharmaceutical Science and Technology, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, 310024, China.
| | - Jia Li
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China.
- University of Chinese Academy of Sciences, Beijing, 100049, China.
- Open Studio for Druggability Research of Marine Natural Products, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, 266237, China.
- School of Pharmaceutical Science and Technology, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, 310024, China.
- Shandong Laboratory of Yantai Drug Discovery, Bohai Rim Advanced Research Institute for Drug Discovery, Yantai, 264117, China.
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Liu W, Yasui M, Sassa A, You X, Wan J, Cao Y, Xi J, Zhang X, Honma M, Luan Y. FTO regulates the DNA damage response via effects on cell-cycle progression. MUTATION RESEARCH/GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2023; 887:503608. [PMID: 37003652 DOI: 10.1016/j.mrgentox.2023.503608] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 02/24/2023] [Accepted: 02/25/2023] [Indexed: 03/02/2023]
Abstract
The fat mass and obesity-associated protein FTO is an "eraser" of N6-methyladenosine, the most abundant mRNA modification. FTO plays important roles in tumorigenesis. However, its activities have not been fully elucidated and its possible involvement in DNA damage - the early driving event in tumorigenesis - remains poorly characterized. Here, we have investigated the role of FTO in the DNA damage response (DDR) and its underlying mechanisms. We demonstrate that FTO responds to various DNA damage stimuli. FTO is overexpressed in mice following exposure to the promutagens aristolochic acid I and benzo[a]pyrene. Knockout of the FTO gene in TK6 cells, via CRISPR/Cas9, increased genotoxicity induced by DNA damage stimuli (micronucleus and TK mutation assays). Cisplatin- and diepoxybutane-induced micronucleus frequencies and methyl methanesulfonate- and azathioprine-induced TK mutant frequencies were also higher in FTO KO cells. We investigated the potential roles of FTO in DDR. RNA sequencing and enrichment analysis revealed that FTO deletion disrupted the p38 MAPK pathway and inhibited the activation of nucleotide excision repair and cell-cycle-related pathways following cisplatin (DNA intrastrand cross-links) treatment. These effects were confirmed by western blotting and qRT-PCR. FTO deletion impaired cell-cycle arrest at the G2/M phase following cisplatin and diepoxybutane treatment (flow cytometry analysis). Our findings demonstrated that FTO is involved in several aspects of DDR, acting, at least in part, by impairing cell cycle progression.
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Wang Y, Hu Y, Wang T, Che G, Li L. Addition of metformin for non-small cell lung cancer patients receiving antineoplastic agents. Front Pharmacol 2023; 14:1123834. [PMID: 36969876 PMCID: PMC10036803 DOI: 10.3389/fphar.2023.1123834] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 02/21/2023] [Indexed: 03/12/2023] Open
Abstract
Background and purpose: Previous studies have found that metformin can inhibit tumor growth and improve outcomes for cancer patients. However, the association between the addition of metformin to the treatment regimen and survival in non-small cell lung cancer (NSCLC) patients receiving antineoplastic agents such as chemotherapy drugs, epidermal growth factor receptor tyrosine kinase inhibitors (EGFR-TKIs), and immune checkpoint inhibitors (ICIs) remains unclear. This study aimed to evaluate the effect of metformin in NSCLC patients who received the aforementioned antineoplastic therapies.Methods: Several electronic databases were searched for relevant studies published by 10 September 2022. The primary and secondary outcomes were overall survival (OS) and progression-free survival (PFS); eligible studies were those comparing patients with and without the addition of metformin. Hazard ratios (HRs) and 95% confidence intervals (CIs) were combined, with all statistical analyses performed using STATA 15.0.Results: A total of 19 studies involving 6,419 participants were included, of which six were randomized controlled trials. The overall pooled results indicate that the addition of metformin improved OS (HR = 0.84, 95% CI: 0.71–0.98, p = 0.029) and PFS (HR = 0.85, 95% CI: 0.74–0.99, p = 0.039). However, subgroup analysis based on treatment type and comorbidity of diabetes mellitus demonstrated that improvements in OS and PFS were observed only in diabetic and EGFR-TKI-treated patients (OS: HR = 0.64, 95% CI: 0.45–0.90, p = 0.011; PFS: HR = 0.59, 95% CI: 0.34–1.03, p = 0.061).Conclusion: Overall, this meta-analysis found that metformin use could improve outcomes for diabetic patients receiving EGFR-TKIs. However, no significant association between the addition of metformin and the survival of non-diabetic NSCLC patients receiving chemotherapy or ICI therapy was identified based on the current evidence.
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Affiliation(s)
- Yan Wang
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Yuanyuan Hu
- Department of Obstetrics and Gynecology, West China Second University Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Ting Wang
- Lung Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Guowei Che
- Lung Cancer Center, West China Hospital, Sichuan University, Chengdu, China
- *Correspondence: Guowei Che, ; Lu Li,
| | - Lu Li
- Lung Cancer Center, West China Hospital, Sichuan University, Chengdu, China
- *Correspondence: Guowei Che, ; Lu Li,
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Li H, Yang D, Xu Z, Yang L, Lin J, Cai J, Yang L. Metformin Sensitizes Cisplatin-induced Apoptosis Through Regulating
Nucleotide Excision Repair Pathway In Cisplatin-resistant Human Lung
Cancer Cells. LETT DRUG DES DISCOV 2022. [DOI: 10.2174/1570180819666220330121135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
Lung cancer is a leading cause of cancer death globally. Platinum-based chemotherapeutic
medications are essential for treating advanced NSCLC, despite that drug resistance severely
limits its effectiveness.
Objective:
In this study, we investigated the cytotoxic effect of metformin on cisplatin-resistant NSCLC
cells (A549/DDP) and its potential mechanisms.
Methods:
Anti-lung cancer efficacy of metformin, cisplatin, and metformin combined with cisplatin was
examined in A549 and A549/DDP cells. The cell counting kit-8 (CCK-8) assay was applied for measuring
cell proliferation. CalcuSyn software was used to calculate the combination index and estimate the
synergistic effect of metformin and cisplatin on cell proliferation. The cell apoptosis was analyzed by
flow cytometry and the expression of apoptosis-related proteins, Bcl-2, Bax and caspase-3 were analyzed
using Western blot. Futhermore, the expression of key nucleotide excision repair (NER) proteins,
ERCC1, XPF, and XPA, was also analyzed using Western blot.
Results:
We found that metformin had dose-dependent antiproliferative effects on A549/DDP and A549
cells. The combination of metformin and cisplatin had higher effectiveness in inhibiting A549/DDP and
A549 cell growth than either of the two drugs alone. Flow cytometry analysis indicated that the combined
treatment could cause more cell apoptosis than the single-drug treatment. Consistently, the combined
treatment decreased the expression of Bcl-2 protein and elevated the expression of Bax, and cleaved
caspase-3 proteins. The expression level of ERCC1, XPF, and XPA proteins were lower in the combined
treatment than in either of metformin and cisplatin treatment alone.
Conclusions:
Our study suggested that metformin and cisplatin had synergistic antitumorigenic effects in
A549/DDP cells. The combination of cisplatin and metformin could be promising drug candidates to
sensitize cisplatin-induced apoptosis through regulating nucleotide excision repair pathways in lung cancer.
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Affiliation(s)
- Haiwen Li
- Cancer Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524000, P.R. China
| | - Donghong Yang
- Cancer Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524000, P.R. China
| | - Zumin Xu
- Cancer Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524000, P.R. China
| | - Liu Yang
- Cancer Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524000, P.R. China
| | - Jiong Lin
- Cancer Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524000, P.R. China
| | - Jingyi Cai
- Cancer Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524000, P.R. China
| | - Li Yang
- Cancer Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524000, P.R. China
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Turabi KS, Deshmukh A, Paul S, Swami D, Siddiqui S, Kumar U, Naikar S, Devarajan S, Basu S, Paul MK, Aich J. Drug repurposing-an emerging strategy in cancer therapeutics. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2022; 395:1139-1158. [PMID: 35695911 DOI: 10.1007/s00210-022-02263-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Accepted: 06/03/2022] [Indexed: 12/24/2022]
Abstract
Cancer is a complex disease affecting millions of people around the world. Despite advances in surgical and radiation therapy, chemotherapy continues to be an important therapeutic option for the treatment of cancer. The current treatment is expensive and has several side effects. Also, over time, cancer cells develop resistance to chemotherapy, due to which there is a demand for new drugs. Drug repurposing is a novel approach that focuses on finding new applications for the old clinically approved drugs. Current advances in the high-dimensional multiomics landscape, especially proteomics, genomics, and computational omics-data analysis, have facilitated drug repurposing. The drug repurposing approach provides cheaper, effective, and safe drugs with fewer side effects and fastens the process of drug development. The review further delineates each repurposed drug's original indication and mechanism of action in cancer. Along with this, the article also provides insight upon artificial intelligence and its application in drug repurposing. Clinical trials are vital for determining medication safety and effectiveness, and hence the clinical studies for each repurposed medicine in cancer, including their stages, status, and National Clinical Trial (NCT) identification, are reported in this review article. Various emerging evidences imply that repurposing drugs is critical for the faster and more affordable discovery of anti-cancerous drugs, and the advent of artificial intelligence-based computational tools can accelerate the translational cancer-targeting pipeline.
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Affiliation(s)
- Khadija Shahab Turabi
- School of Biotechnology and Bioinformatics, DY Patil Deemed to Be University, CBD Belapur, Navi Mumbai, Maharashtra, 400614, India
| | - Ankita Deshmukh
- School of Biotechnology and Bioinformatics, DY Patil Deemed to Be University, CBD Belapur, Navi Mumbai, Maharashtra, 400614, India
| | - Sayan Paul
- Centre for Cardiovascular Biology and Disease, Institute for Stem Cell Science and Regenerative Medicine (inStem), Bangalore, 560065, India
| | - Dayanand Swami
- School of Biotechnology and Bioinformatics, DY Patil Deemed to Be University, CBD Belapur, Navi Mumbai, Maharashtra, 400614, India
| | - Shafina Siddiqui
- School of Biotechnology and Bioinformatics, DY Patil Deemed to Be University, CBD Belapur, Navi Mumbai, Maharashtra, 400614, India
| | - Urwashi Kumar
- School of Biotechnology and Bioinformatics, DY Patil Deemed to Be University, CBD Belapur, Navi Mumbai, Maharashtra, 400614, India
| | - Shreelekha Naikar
- School of Biotechnology and Bioinformatics, DY Patil Deemed to Be University, CBD Belapur, Navi Mumbai, Maharashtra, 400614, India
| | - Shine Devarajan
- School of Biotechnology and Bioinformatics, DY Patil Deemed to Be University, CBD Belapur, Navi Mumbai, Maharashtra, 400614, India
| | - Soumya Basu
- Cancer and Translational Research Centre, Dr. D. Y. Patil Biotechnology & Bioinformatics Institute, Dr. D. Y. Patil Vidyapeeth, Pune, Maharashtra, 411033, India
| | - Manash K Paul
- Division of Pulmonary and Critical Care Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, 90095, USA.
| | - Jyotirmoi Aich
- School of Biotechnology and Bioinformatics, DY Patil Deemed to Be University, CBD Belapur, Navi Mumbai, Maharashtra, 400614, India.
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López-Camacho E, Trilla-Fuertes L, Gámez-Pozo A, Dapía I, López-Vacas R, Zapater-Moros A, Lumbreras-Herrera MI, Arias P, Zamora P, Vara JÁF, Espinosa E. Synergistic effect of antimetabolic and chemotherapy drugs in triple-negative breast cancer. Biomed Pharmacother 2022; 149:112844. [PMID: 35339109 DOI: 10.1016/j.biopha.2022.112844] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 03/16/2022] [Accepted: 03/17/2022] [Indexed: 11/02/2022] Open
Abstract
The triple-negative breast cancer (TNBC) subtype comprises approximately 15% of all breast cancers and is associated with poor long-term outcomes. Classical chemotherapy remains the standard of treatment, with toxicity and resistance being major limitations. TNBC is a high metabolic group, and antimetabolic drugs are effective in inhibiting TNBC cell growth. We analyzed the combined effect of chemotherapy and antimetabolic drug combinations in MDA-MB-231, MDA-MB-468 and HCC1143 human TNBC cell lines. Cells were treated with each drug or with drug combinations at a range of concentrations to establish the half-maximal inhibitory concentrations (IC50). The dose-effects of each drug or drug combination were calculated, and the synergistic or antagonistic effects of drug combinations were defined. Chemotherapy and antimetabolic drugs exhibited growth inhibitory effects on TNBC cell lines. Antimetabolic drugs targeting the glycolysis pathway had a synergistic effect with chemotherapy drugs, and antiglycolysis drug combinations also had a synergistic effect. The use of these drug combinations could lead to new therapeutic strategies that reduce chemotherapy drug doses, decreasing their toxic effect, or that maintain the doses but enhance their efficacy by their synergistic effect with other drugs.
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Affiliation(s)
- Elena López-Camacho
- Molecular Oncology Lab, La Paz University Hospital-IdiPAZ, Madrid, Spain; Biomedica Molecular Medicine SL, Madrid, Spain
| | | | - Angelo Gámez-Pozo
- Molecular Oncology Lab, La Paz University Hospital-IdiPAZ, Madrid, Spain; Biomedica Molecular Medicine SL, Madrid, Spain
| | - Irene Dapía
- Pharmacogenetics Lab, Institute of Medical and Molecular Genetics-INGEMM, La Paz University Hospital-IdiPAZ, Autonomous University of Madrid, Madrid, Spain; Biomedical Research Networking Center on Rare Diseases-CIBERER, ISCIII, Madrid, Spain
| | - Rocío López-Vacas
- Molecular Oncology Lab, La Paz University Hospital-IdiPAZ, Madrid, Spain
| | - Andrea Zapater-Moros
- Biomedica Molecular Medicine SL, Madrid, Spain; Biomedical Research Networking Center on Oncology-CIBERONC, ISCIII, Madrid, Spain
| | | | - Pedro Arias
- Pharmacogenetics Lab, Institute of Medical and Molecular Genetics-INGEMM, La Paz University Hospital-IdiPAZ, Autonomous University of Madrid, Madrid, Spain; Biomedical Research Networking Center on Rare Diseases-CIBERER, ISCIII, Madrid, Spain
| | - Pilar Zamora
- Medical Oncology Service, La Paz University Hospital, Madrid, Spain
| | - Juan Ángel Fresno Vara
- Molecular Oncology Lab, La Paz University Hospital-IdiPAZ, Madrid, Spain; Biomedical Research Networking Center on Oncology-CIBERONC, ISCIII, Madrid, Spain
| | - Enrique Espinosa
- Medical Oncology Service, La Paz University Hospital, Madrid, Spain; Biomedical Research Networking Center on Oncology-CIBERONC, ISCIII, Madrid, Spain.
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Buczyńska A, Sidorkiewicz I, Krętowski AJ, Zbucka-Krętowska M, Adamska A. Metformin Intervention—A Panacea for Cancer Treatment? Cancers (Basel) 2022; 14:cancers14051336. [PMID: 35267644 PMCID: PMC8909770 DOI: 10.3390/cancers14051336] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 02/25/2022] [Accepted: 03/04/2022] [Indexed: 02/07/2023] Open
Abstract
The molecular mechanism of action and the individual influence of various metabolic pathways related to metformin intervention are under current investigation. The available data suggest that metformin provides many advantages, exhibiting anti-inflammatory, anti-cancer, hepatoprotective, cardioprotective, otoprotective, radioprotective, and radio-sensitizing properties depending on cellular context. This literature review was undertaken to provide novel evidence concerning metformin intervention, with a particular emphasis on cancer treatment and prevention. Undoubtedly, the pleiotropic actions associated with metformin include inhibiting inflammatory processes, increasing antioxidant capacity, and improving glycemic and lipid metabolism. Consequently, these characteristics make metformin an attractive medicament to translate to human trials, the promising results of which were also summarized in this review.
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Affiliation(s)
- Angelika Buczyńska
- Clinical Research Centre, Medical University of Bialystok, 15-276 Bialystok, Poland; (I.S.); (A.J.K.)
- Correspondence: (A.B.); (A.A.); Tel.: +48-85-746-8513 (A.B.); +48-85-746-8660 (A.A.)
| | - Iwona Sidorkiewicz
- Clinical Research Centre, Medical University of Bialystok, 15-276 Bialystok, Poland; (I.S.); (A.J.K.)
| | - Adam Jacek Krętowski
- Clinical Research Centre, Medical University of Bialystok, 15-276 Bialystok, Poland; (I.S.); (A.J.K.)
- Department of Endocrinology, Diabetology and Internal Medicine, Medical University of Bialystok, 15-276 Bialystok, Poland
| | - Monika Zbucka-Krętowska
- Department of Gynecological Endocrinology and Adolescent Gynecology, Medical University of Bialystok, 15-276 Bialystok, Poland;
| | - Agnieszka Adamska
- Department of Endocrinology, Diabetology and Internal Medicine, Medical University of Bialystok, 15-276 Bialystok, Poland
- Correspondence: (A.B.); (A.A.); Tel.: +48-85-746-8513 (A.B.); +48-85-746-8660 (A.A.)
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9
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Cheng T, Wang C, Lu Q, Cao Y, Yu W, Li W, Liu B, Gao X, Lü J, Pan X. Metformin inhibits the tumor-promoting effect of low-dose resveratrol, and enhances the anti-tumor activity of high-dose resveratrol by increasing its reducibility in triple negative breast cancer. Free Radic Biol Med 2022; 180:108-120. [PMID: 35038549 DOI: 10.1016/j.freeradbiomed.2022.01.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 12/13/2021] [Accepted: 01/12/2022] [Indexed: 12/20/2022]
Abstract
Resveratrol, a natural antioxidant that maintains better bioactivity under hypoxia, has anti-tumor effects, but its underlying mechanism is controversial and the effect on Triple-negative breast cancer (TNBC) remains unclear. Herein, we investigated the anti-TNBC mechanism of resveratrol under a mimic hypoxic tumor microenvironment and explored a method of combining metformin to improve the therapeutic effect. The results showed an inverted "U" shaped relationship between the cell viability and resveratrol concentrations. Low concentrations of resveratrol (LRes) promoted proliferation and migration in MDA-MB-231 cells by activating JAK3/STAT3 signaling pathway, while high concentrations of resveratrol (HRes) inhibited cell growth and induced both autophagy and apoptosis through MAPK signaling pathway. Meanwhile, HRes treatment resulted in the up-regulation of antioxidant-related genes SOD3 and FAM213B, the increase of catalase activity and NAD(P)H level, which leading to a reducing microenvironment in cells. Notably, metformin could inhibit the proliferation and migration induced by LRes, whereas promote apoptosis induced by HRes. Moreover, metformin enhanced the reducing environment via further increasing the catalase activity and NAD(P)H level. These findings conclude the anti-TNBC mechanism of HRes should be attributed to its antioxidant activity and metformin enhances its reducibility. Metformin combined with resveratrol exerts a synergistic therapeutic effect on TNBC and effectively prevents tumor progression.
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Affiliation(s)
- Tingting Cheng
- School of Pharmacy, Binzhou Medical University, Yantai, 264003, China
| | - Cheng Wang
- School of Pharmacy, Binzhou Medical University, Yantai, 264003, China
| | - Qianqian Lu
- Yantai Affiliated Hospital of Binzhou Medical University, Yantai, 264003, China
| | - Yuru Cao
- Yantai Affiliated Hospital of Binzhou Medical University, Yantai, 264003, China
| | - Weiwei Yu
- School of Public Health and Management, Binzhou Medical University, Yantai, 264003, China; Institute of Regulatory Science, Beijing Technology and Business University, Beijing, 100048, China
| | - Wenzhen Li
- School of Pharmacy, Binzhou Medical University, Yantai, 264003, China
| | - Ben Liu
- Yantai Affiliated Hospital of Binzhou Medical University, Yantai, 264003, China
| | - Xue Gao
- School of Pharmacy, Binzhou Medical University, Yantai, 264003, China.
| | - Junhong Lü
- School of Pharmacy, Binzhou Medical University, Yantai, 264003, China; Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201203, China.
| | - Xiaohong Pan
- School of Pharmacy, Binzhou Medical University, Yantai, 264003, China.
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10
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Dissection of the MKK3 Functions in Human Cancer: A Double-Edged Sword? Cancers (Basel) 2022; 14:cancers14030483. [PMID: 35158751 PMCID: PMC8833818 DOI: 10.3390/cancers14030483] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 01/02/2022] [Accepted: 01/17/2022] [Indexed: 01/27/2023] Open
Abstract
The role played by MKK3 in human cancer is controversial. MKK3 is an evolutionarily conserved protein kinase that activates in response to a variety of stimuli. Phosphorylates, specifically the p38MAPK family proteins, contribute to the regulation of a plethora of cellular processes such as proliferation, differentiation, apoptosis, invasion, and cell migration. Genes in carcinogenesis are classified as oncogenes and tumor suppressors; however, a clear distinction is not always easily made as it depends on the cell context and tissue specificity. The aim of this study is the examination of the potential contribution of MKK3 in cancer through a systematic analysis of the recent literature. The overall results reveal a complex scenario of MKK3’s involvement in cancer. The oncogenic functions of MKK3 were univocally documented in several solid tumors, such as colorectal, prostate cancer, and melanoma, while its tumor-suppressing functions were described in glioblastoma and gastric cancer. Furthermore, a dual role of MKK3 as an oncogene as well as tumor a suppressor has been described in breast, cervical, ovarian, liver, esophageal, and lung cancer. However, overall, more evidence points to its role as an oncogene in these diseases. This review indicates that the oncogenic and tumor-suppressing roles of MKK3 are strictly dependent on the tumor type and further suggests that MKK3 could represent an efficient putative molecular target that requires contextualization within a specific tumor type in order to adequately evaluate its potential effectiveness in designing novel anticancer therapies.
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11
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Metformin Potentiates the Anticancer Effect of Everolimus on Cervical Cancer In Vitro and In Vivo. Cancers (Basel) 2021; 13:cancers13184612. [PMID: 34572837 PMCID: PMC8468269 DOI: 10.3390/cancers13184612] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 09/07/2021] [Accepted: 09/10/2021] [Indexed: 01/14/2023] Open
Abstract
Simple Summary Recent studies have shown that metformin combined with clinical chemotherapeutic drugs could cause decreased cell toxicity and attenuate tumor resistance in various types of cancer. The aim of the present study was to elucidate whether combined treatment with metformin and everolimus has a synergistic anticancer effect in human cervical cancer in vitro and in vivo. The results showed that this combined treatment synergistically inhibited the growth of human cervical cancer cell lines and xenografts in nude mice, and induced caspase-dependent apoptosis, promoting sub-G1- and G0/G1-phase arrest and enhancing mtROS production. Combined treatment also synergistically inactivated PI3K/AKT signaling and activated MAPKs signaling in cervical cancer. Our data suggested that metformin potentiates the anticancer effect of everolimus on cervical cancer, and combined treatment provides a novel therapeutic strategy for patients with cervical cancer. Abstract Cervical cancer is globally the fourth most common cancer in women. Metformin is a widely used drug for the treatment of type II diabetes and has been shown to possess important anticancer properties in cervical cancer. Everolimus is an mTOR inhibitor and is widely used to treat NETs, RCC, TSC, and breast cancers. The present study investigated the anticancer effects of metformin and everolimus in cervical cancer, when used alone or in combination. CaSki and C33A human cervical cancer cells were treated with different concentrations of everolimus alone or in combination with metformin. Cell viability was assessed using a CCK-8 assay. Cell apoptosis, cell-cycle, and mtROS analyses were conducted using flow cytometry. Target protein levels were analyzed by Western blotting. Related mechanisms were confirmed using appropriate inhibitors (z-VAD-fmk and BIRB796). The in vitro results were further confirmed in a xenograft tumor study. Both metformin and everolimus, when used alone, were moderately effective in inhibiting cell proliferation and inducing cell apoptosis of CaSki and C33A cells. When used in combination, these two drugs synergistically inhibited the growth of human cervical cancer cells and xenografts in nude mice, promoted sub-G1- and G0/G1-phase cell-cycle arrest, and enhanced mtROS production. The protein expressions of PI3K (p110α) and p-AKT were significantly downregulated, while P27, P21, p-p38, p-ERK, and p-JNK were upregulated following combined treatment. These results revealed that metformin potentiates the anticancer effect of everolimus on cervical cancer, and combination treatment with metformin and everolimus provides a novel therapeutic strategy for patients with cervical cancer.
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12
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New Insight into the Effects of Metformin on Diabetic Retinopathy, Aging and Cancer: Nonapoptotic Cell Death, Immunosuppression, and Effects beyond the AMPK Pathway. Int J Mol Sci 2021; 22:ijms22179453. [PMID: 34502359 PMCID: PMC8430477 DOI: 10.3390/ijms22179453] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 08/25/2021] [Accepted: 08/25/2021] [Indexed: 12/12/2022] Open
Abstract
Under metabolic stress conditions such as hypoxia and glucose deprivation, an increase in the AMP:ATP ratio activates the AMP-activated protein kinase (AMPK) pathway, resulting in the modulation of cellular metabolism. Metformin, which is widely prescribed for type 2 diabetes mellitus (T2DM) patients, regulates blood sugar by inhibiting hepatic gluconeogenesis and promoting insulin sensitivity to facilitate glucose uptake by cells. At the molecular level, the most well-known mechanism of metformin-mediated cytoprotection is AMPK pathway activation, which modulates metabolism and protects cells from degradation or pathogenic changes, such as those related to aging and diabetic retinopathy (DR). Recently, it has been revealed that metformin acts via AMPK- and non-AMPK-mediated pathways to exert effects beyond those related to diabetes treatment that might prevent aging and ameliorate DR. This review focuses on new insights into the anticancer effects of metformin and its potential modulation of several novel types of nonapoptotic cell death, including ferroptosis, pyroptosis, and necroptosis. In addition, the antimetastatic and immunosuppressive effects of metformin and its hypothesized mechanism are also discussed, highlighting promising cancer prevention strategies for the future.
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13
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Chen C, Wang H, Geng X, Zhang D, Zhu Z, Zhang G, Hou J. Metformin exerts anti-AR-negative prostate cancer activity via AMPK/autophagy signaling pathway. Cancer Cell Int 2021; 21:404. [PMID: 34399755 PMCID: PMC8369631 DOI: 10.1186/s12935-021-02043-2] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Accepted: 06/24/2021] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Encouraged by the goal of developing an effective treatment strategy for prostate cancer, this study explored the mechanism involved in metformin-mediated inhibition of AR-negative prostate cancer. METHODS Cell behaviors of DU145 and PC3 cells were determined by CCK8 test, colony formation experiment and scratch test. Flow cytometry was used to detect cell cycle distribution. Cell autophagy was induced with metformin, and an autophagy inhibitor, 3-MA, was used to assess the level of autophagy. Detection of LC3B by immunofluorescence was conducted to determine autophagy level. Cell proliferation, autophagy and cell cycle were examined by performing Western blot. DU145 and PC3 cell lines were transfected with AMPK siRNA targeting AMPK-α1 and AMPK-α2. Tumor formation experiment was carried out to evaluate the anti-prostate cancer effect of metformin in vivo. RESULTS The inhibitory effect of metformin on the proliferation of prostate cancer cell lines was confirmed in this study, and the mechanism of such an effect was related to autophagy and the block of cell cycle at G0/G1 phase. Metformin also induced the activation of AMPK, markedly promoted expression of LC3II, and down-regulated the expression of p62/SQSTM1. Animal experiments showed that the tumor volume of metformin group was smaller, meanwhile, the levels of p-AMPK (Thr172) and LC3B were up-regulated and the Ki-67 level was down-regulated, without abnormalities in biochemical indicators. CONCLUSION This study found that autophagy induction might be the mechanism through which metformin suppressed the growth of AR-negative prostate cancer. Moreover, the activation of AMPK/autophagy pathway might be a therapeutically effective for treating AR-negative prostate cancer in the future.
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Affiliation(s)
- Chunyang Chen
- Department of Urology, Wuxi People's Hospital Affiliated to Nanjing Medical University, 299 Qingyang Road, Wuxi, 214023, Jiangsu, People's Republic of China
| | - He Wang
- Department of Urology, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, 215006, Jiangsu, People's Republic of China
| | - Xinyu Geng
- Department of Urology, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, 215006, Jiangsu, People's Republic of China
| | - Dongze Zhang
- Jiangsu Institute of Clinical Immunology, The First Affiliated Hospital of Soochow University, 708 Renmin Road, Suzhou, 215006, Jiangsu, People's Republic of China
- Jiangsu Key Laboratory of Clinical Immunology, Soochow University, 708 Renmin Road, Suzhou, 215006, Jiangsu, People's Republic of China
| | - Zhengyu Zhu
- Department of Urology, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, 215006, Jiangsu, People's Republic of China
| | - Guangbo Zhang
- Jiangsu Institute of Clinical Immunology, The First Affiliated Hospital of Soochow University, 708 Renmin Road, Suzhou, 215006, Jiangsu, People's Republic of China
- Jiangsu Key Laboratory of Clinical Immunology, Soochow University, 708 Renmin Road, Suzhou, 215006, Jiangsu, People's Republic of China
| | - Jianquan Hou
- Department of Urology, Dushu Lake Hospital Affiliated to Soochow University, 9 Chongwen Road, Suzhou, 215006, Jiangsu, People's Republic of China.
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14
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Wang JL, Lan YW, Tsai YT, Chen YC, Staniczek T, Tsou YA, Yen CC, Chen CM. Additive Antiproliferative and Antiangiogenic Effects of Metformin and Pemetrexed in a Non-Small-Cell Lung Cancer Xenograft Model. Front Cell Dev Biol 2021; 9:688062. [PMID: 34235153 PMCID: PMC8255984 DOI: 10.3389/fcell.2021.688062] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 05/31/2021] [Indexed: 12/16/2022] Open
Abstract
Lung cancer is heterogeneous and challenging to cope with once it has progressed. Chemotherapy is the first step once no active driver mutation has been discovered. Non-antitumor drugs have been found to be beneficial when used as adjuvants to chemotherapy. In this study, the additive effect and mechanism of metformin combined with pemetrexed in non-small-cell lung cancer (NSCLC) cells were elucidated. Three NSCLC cell lines, A549, H1975, and HCC827, were used to analyze tumor cell proliferation, colony formation and the cell cycle in vitro when exposed to metformin alone, pemetrexed alone or their combination. We found that combination treatment in three cell lines exerted antiproliferative effects through cell cycle arrest in the S phase. An ex vivo chicken chorioallantoic membrane (CAM) assay was used to examine the antiangiogenic effect of metformin combined with pemetrexed on vascular structure formation. We further created an A549 orthotopic xenograft model with an in vivo imaging system (IVIS) and explored the associated indicators involved in the tumorigenic process. The in vitro results showed that the combination of metformin and pemetrexed exhibited an antiproliferative effect in reducing cell viability and colony formation, the downregulation of cyclin D1 and A2 and the upregulation of CDKN1B, which are involved in the G1/S phase. For antiangiogenic effects, the combination therapy inhibited the vascular structure, as proven by the CAM assay. We elucidated that combination therapy could target VEGFA and Endoglin by RT-qPCR, ELISA and histopathological findings in an A549 orthotopic NSCLC xenograft model. Our research demonstrated the additive antiproliferative and antiangiogenic effects of the combination of metformin with pemetrexed in NSCLC and could be applied to clinical lung cancer therapy.
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Affiliation(s)
- Jiun-Long Wang
- Ph.D. Program in Translational Medicine, Department of Life Sciences, National Chung Hsing University, Taichung, Taiwan.,Division of Chest Medicine, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Ying-Wei Lan
- Ph.D. Program in Translational Medicine, Department of Life Sciences, National Chung Hsing University, Taichung, Taiwan
| | - Yi-Ting Tsai
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Ying-Cheng Chen
- Ph.D. Program in Translational Medicine, Department of Life Sciences, National Chung Hsing University, Taichung, Taiwan
| | - Theresa Staniczek
- Department of Dermatology, Venereology and Allergology, Center of Excellence in Dermatology, University Medical Center and Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Yung-An Tsou
- Department of Otolaryngology-Head and Neck Surgery, China Medical University Hospital, Taichung, Taiwan
| | - Chih-Ching Yen
- Department of Internal Medicine, China Medical University Hospital, College of Health Care, China Medical University, Taichung, Taiwan
| | - Chuan-Mu Chen
- Ph.D. Program in Translational Medicine, Department of Life Sciences, National Chung Hsing University, Taichung, Taiwan.,The iEGG and Animal Biotechnology Center, Rong Hsing Research Center for Translational Medicine, National Chung Hsing University, Taichung, Taiwan
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15
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Luo X, Chen X, Wang L, Yang B, Cai S. Metformin Adjunct With Antineoplastic Agents for the Treatment of Lung Cancer: A Meta-Analysis of Randomized Controlled Trials and Observational Cohort Studies. Front Pharmacol 2021; 12:639016. [PMID: 34149406 PMCID: PMC8209491 DOI: 10.3389/fphar.2021.639016] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Accepted: 05/20/2021] [Indexed: 12/20/2022] Open
Abstract
Objective: Resistance to anticancer agents ensures a poor prognosis in patients with lung cancer. Metformin could enhance the anticancer effects of standard antineoplastic agents [traditional chemotherapy drugs, epidermal growth factor receptor tyrosine kinase inhibitors (EGFR-TKIs), or immune checkpoint inhibitors (ICIs)]; however, it is unclear whether metformin can be combined with antineoplastic agents in the treatment of lung cancer. To explore the efficacy of combinational strategies, we performed a systematic review and meta-analysis for diabetic and non-diabetic patients with lung cancer. Method: An electronic literature search was performed to obtain relevant randomized controlled trials (RCTs) and observational cohort studies. Hazard ratios (HR) with 95% confidence intervals (CI) of overall survival (OS) and progression-free survival (PFS) outcomes were extracted. Subgroup analysis by antineoplastic agents, study type, histology and clinical stage were investigated. Results: 14 studies (three RCTs and eleven observational cohort studies) consisting 3,856 patients were included in the meta-analysis. Compared to standard antineoplastic agents alone (traditional chemotherapy drugs, EGFR-TKIs or ICIs), the antineoplastic agents combined with metformin significantly improved OS (HR 0.73, 95% CI 0.66–0.81, p < 0.00001) and PFS (HR 0.72, 95% CI 0.59–0.88, p = 0.001); a similar association was found in observational evidence. Limited data from RCTs showed no differences in OS or PFS. Conclusion: Metformin plus antineoplastic agents may improve survival outcomes of patients with lung cancer. Further investigation is needed.
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Affiliation(s)
- Xiaofeng Luo
- Department of Pharmacy, The First Hospital of China Medical University, Shenyang, China.,School of Pharmacy, China Medical University, Shenyang, China
| | - Xi Chen
- Department of Pharmacy, The First Hospital of China Medical University, Shenyang, China.,School of Pharmacy, China Medical University, Shenyang, China
| | - Lin Wang
- Department of Pharmacy, The First Hospital of China Medical University, Shenyang, China.,School of Pharmacy, China Medical University, Shenyang, China
| | - Bowen Yang
- Department of Medical Oncology, The First Hospital of China Medical University, Shenyang, China
| | - Shuang Cai
- Department of Pharmacy, The First Hospital of China Medical University, Shenyang, China.,School of Pharmacy, China Medical University, Shenyang, China
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16
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Aydemir I, Turkoz Uluer E, Korkmaz O, Tuglu MI, Inan S. Adjuvant effects of chemotherapeutics and Metformin on MFE-319 endometrial carcinoma cell line. ROMANIAN JOURNAL OF MORPHOLOGY AND EMBRYOLOGY 2021; 61:707-714. [PMID: 33817712 PMCID: PMC8112780 DOI: 10.47162/rjme.61.3.09] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
We aimed to investigate the cytotoxicity of Metformin, Cisplatin, and Paclitaxel on MFE-319 endometrial carcinoma cell line using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) and immunocytochemistry assays. Half maximal inhibitory concentration (IC50) doses of three drugs alone and in the dual combinations were applied to the cells. Immunocytochemical method was performed for the cell survival and for phosphatidylinositol 3-kinase (PI3K), phosphorylated extracellular regulated kinases (pErk)-1/2, Akt-1, phosphorylated Akt (pAkt)-1/2/3 cell growth markers and angiogenic vascular endothelial growth factor (VEGF). Immunoreactivities were evaluated using H-score and analyzed using the one-way analysis of variance (ANOVA) test for statistics. It was found that these drugs caused a decrease in the immunoreactivities of these markers. Particularly, dual combination of Paclitaxel and Cisplatin decreased the immunoreactivities of PI3K, pErk-1/2, Akt-1, and pAkt-1/2/3. Cisplatin and Paclitaxel were more effective than Metformin; on the other hand, Metformin has been shown to enhance the efficacy of these two drugs. In vitro or in vivo further studies are needed to investigate the efficacy of these three drugs via PI3K/Akt signal pathway.
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Affiliation(s)
- Isil Aydemir
- Department of Histology and Embryology, Faculty of Medicine, Nigde Omer Halisdemir University, Nigde, Turkey;
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17
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Tang Z, Tang N, Jiang S, Bai Y, Guan C, Zhang W, Fan S, Huang Y, Lin H, Ying Y. The Chemosensitizing Role of Metformin in Anti-Cancer Therapy. Anticancer Agents Med Chem 2021; 21:949-962. [PMID: 32951587 DOI: 10.2174/1871520620666200918102642] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 07/23/2020] [Accepted: 08/08/2020] [Indexed: 11/22/2022]
Abstract
Chemoresistance, which leads to the failure of chemotherapy and further tumor recurrence, presents the largest hurdle for the success of anti-cancer therapy. In recent years, metformin, a widely used first-line antidiabetic drug, has attracted increasing attention for its anti-cancer effects. A growing body of evidence indicates that metformin can sensitize tumor responses to different chemotherapeutic drugs, such as hormone modulating drugs, anti-metabolite drugs, antibiotics, and DNA-damaging drugs via selective targeting of Cancer Stem Cells (CSCs), improving the hypoxic microenvironment, and by suppressing tumor metastasis and inflammation. In addition, metformin may regulate metabolic programming, induce apoptosis, reverse Epithelial to Mesenchymal Transition (EMT), and Multidrug Resistance (MDR). In this review, we summarize the chemosensitization effects of metformin and focus primarily on its molecular mechanisms in enhancing the sensitivity of multiple chemotherapeutic drugs, through targeting of mTOR, ERK/P70S6K, NF-κB/HIF-1 α, and Mitogen- Activated Protein Kinase (MAPK) signaling pathways, as well as by down-regulating the expression of CSC genes and Pyruvate Kinase isoenzyme M2 (PKM2). Through a comprehensive understanding of the molecular mechanisms of chemosensitization provided in this review, the rationale for the use of metformin in clinical combination medications can be more systematically and thoroughly explored for wider adoption against numerous cancer types.>.
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Affiliation(s)
- Zhimin Tang
- Jiangxi Province Key Laboratory of Tumor Pathogens and Molecular Pathology and Department of Pathophysiology, Schools of Basic Medical Sciences, Nanchang University, Nanchang 330006, China
| | - Nan Tang
- Nanchang Joint Program, Queen Mary School, Nanchang University, Nanchang 330006, China
| | - Shanshan Jiang
- Institute of Hematological Research, Shanxi Provincial People's Hospital, Xian 710000, China
| | - Yangjinming Bai
- Nanchang Joint Program, Queen Mary School, Nanchang University, Nanchang 330006, China
| | - Chenxi Guan
- Jiangxi Province Key Laboratory of Tumor Pathogens and Molecular Pathology and Department of Pathophysiology, Schools of Basic Medical Sciences, Nanchang University, Nanchang 330006, China
| | - Wansi Zhang
- Jiangxi Province Key Laboratory of Tumor Pathogens and Molecular Pathology and Department of Pathophysiology, Schools of Basic Medical Sciences, Nanchang University, Nanchang 330006, China
| | - Shipan Fan
- Guangzhou Regenerative Medicine and Health Guangdong Laboratory (GRMH-GDL), Guangzhou 510005, China
| | - Yonghong Huang
- Jiangxi Province Key Laboratory of Tumor Pathogens and Molecular Pathology and Department of Pathophysiology, Schools of Basic Medical Sciences, Nanchang University, Nanchang 330006, China
| | - Hui Lin
- Jiangxi Province Key Laboratory of Tumor Pathogens and Molecular Pathology and Department of Pathophysiology, Schools of Basic Medical Sciences, Nanchang University, Nanchang 330006, China
| | - Ying Ying
- Jiangxi Province Key Laboratory of Tumor Pathogens and Molecular Pathology and Department of Pathophysiology, Schools of Basic Medical Sciences, Nanchang University, Nanchang 330006, China
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18
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Huang S, He T, Yang S, Sheng H, Tang X, Bao F, Wang Y, Lin X, Yu W, Cheng F, Lv W, Hu J. Metformin reverses chemoresistance in non-small cell lung cancer via accelerating ubiquitination-mediated degradation of Nrf2. Transl Lung Cancer Res 2020; 9:2337-2355. [PMID: 33489797 PMCID: PMC7815349 DOI: 10.21037/tlcr-20-1072] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Background The therapeutic efficacy of cisplatin-based chemotherapy for non-small cell lung cancer (NSCLC) is limited by drug resistance. In NSCLC, hyperactivation of nuclear factor erythroid 2-related factor 2 (Nrf2) counteracts oxidative stress to promote chemoresistance. Metformin-mediated downregulation of Nrf2 plays a pivotal role in overcoming drug resistance in NSCLC cells. Therefore, a deeper understanding of the molecular mechanisms of combination therapy and the role of Nrf2 in chemotherapeutic response is critical to clinical translation. Methods The effects of combination therapy with metformin and cisplatin on cell proliferation and apoptosis, intracellular reactive oxygen species (ROS) levels, and xenograft tumor formation were analyzed in NSCLC cells. Co-immunoprecipitation (co-IP) and Phos-tag assays were used to explore the mechanism of metformin-mediated Nrf2 suppression. Immunohistochemical (IHC) staining was performed to detect Nrf2 expression in matched tumor samples before and after neoadjuvant chemotherapy. Results Metformin was observed to synergistically augment cisplatin-induced cytotoxicity by strongly inhibiting the level of Nrf2, thereby weakening the antioxidant system and detoxification ability of Nrf2 and enhancing ROS-mediated apoptosis in NSCLC. The synergistic antitumor effect of combination therapy is blocked by treatment with the ROS scavenger N-acetyl cysteine (NAC) as well as overexpression of Nrf2 and its downstream antioxidant protein. Mechanistically, metformin extensively dephosphorylates Nrf2 by attenuating the interaction between Nrf2 and extracellular signal-regulated kinases 1/2 (ERK1/2), which then restores its polyubiquitination and accelerates its proteasomal degradation. Moreover, for the first time, an association of non-decreased Nrf2 expression in patients after neoadjuvant chemotherapy with poor survival and chemoresistance in NSCLC was revealed. Conclusions Our findings illustrate the mechanism of metformin-mediated Nrf2 degradation through posttranslational modifications (PTMs), which weakens the ROS defense system in NSCLC. Fluctuations in Nrf2 expression have a strong predictive ability for chemotherapeutic response in neoadjuvant NSCLC patients. Targeting of the Nrf2 pathway could be a therapeutic strategy for overcoming chemoresistance, with metformin as the first choice for this strategy.
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Affiliation(s)
- Sha Huang
- Department of Thoracic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Tianyu He
- Department of Thoracic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Sijia Yang
- Department of Thoracic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Hongxu Sheng
- Department of Thoracic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Xiuwen Tang
- Department of Biochemistry and Department of Thoracic Surgery of the First Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, China
| | - Feichao Bao
- Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Yiqing Wang
- Department of Thoracic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Xu Lin
- Department of Thoracic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Wenfeng Yu
- Department of Thoracic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Fei Cheng
- Department of Pathology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Wang Lv
- Department of Thoracic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jian Hu
- Department of Thoracic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
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20
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Ko E, Baek S, Kim J, Park D, Lee Y. Antitumor Activity of Combination Therapy with Metformin and Trametinib in Non-Small Cell Lung Cancer Cells. Dev Reprod 2020; 24:113-123. [PMID: 32734128 PMCID: PMC7375979 DOI: 10.12717/dr.2020.24.2.113] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Revised: 05/15/2020] [Accepted: 05/27/2020] [Indexed: 01/28/2023]
Abstract
Metformin has been widely used as an antidiabetic drug, and reported to inhibit cell proliferation in many cancers including non-small cell lung cancer (NSCLC). In NSCLC cells, metformin suppresses PI3K/AKT/mTOR signaling pathway, but effect of metformin on RAS/ RAF/MEK/ERK signaling pathway is controversial; several studies showed the inhibition of ERK activity, while others demonstrated the activation of ERK in response to metformin exposure. Metformin-induced activation of ERK is therapeutically important, since metformin could enhance cell proliferation through RAS/RAF/MEK/ERK pathway and lead to impairment of its anticancer activity suppressing PI3K/AKT/mTOR pathway, requiring blockade of both signaling pathways for more efficient antitumor effect. The present study tested the combination therapy of metformin and trametinib by monitoring the alterations of regulatory effector proteins of cell signaling pathways and the effect of the combination on cell viability in NCI-H2087 NSCLC cells with NRAS and BRAF mutations. We show that metformin alone blocks PI3K/AKT/mTOR signaling pathway but induces the activation and phosphorylation of ERK. The combination therapy synergistically decreased cell viability in treatment with low doses of two drugs, while it gave antagonistic effect with high doses. These findings suggest that the efficacy of metformin and trametinib combination therapy may depend on the alteration of ERK activity induced by metformin and specific cellular context of cancer cells.
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Affiliation(s)
- Eunjeong Ko
- Dept. of Medicine, Jeju National
University School of Medicine, Jeju 63243,
Korea
| | - Seungjae Baek
- Dept. of Medicine, Jeju National
University School of Medicine, Jeju 63243,
Korea
| | - Jiwon Kim
- Histology, Jeju National University
School of Medicine, Jeju 63243,
Korea
| | - Deokbae Park
- Histology, Jeju National University
School of Medicine, Jeju 63243,
Korea
| | - Youngki Lee
- Histology, Jeju National University
School of Medicine, Jeju 63243,
Korea
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Salvatore T, Pafundi PC, Morgillo F, Di Liello R, Galiero R, Nevola R, Marfella R, Monaco L, Rinaldi L, Adinolfi LE, Sasso FC. Metformin: An old drug against old age and associated morbidities. Diabetes Res Clin Pract 2020; 160:108025. [PMID: 31954752 DOI: 10.1016/j.diabres.2020.108025] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 01/02/2020] [Accepted: 01/13/2020] [Indexed: 12/26/2022]
Abstract
Metformin represents a striking example of a "historical nemesis" of a drug. About 40 years after its marketing in Europe, once demonstrated its efficacy and safety, metformin was registered also in the U.S. A few years later, it has become a mainstay in T2DM treatment, according to all international Scientific Societies guidelines. Today, despite the advent of new innovative drugs, metformin still persists as a first-choice drug in T2DM. This success is largely justified. In fact, over the years, also positive effects on health increased. In particular, evidence has been accumulated on a beneficial impact against many other aging-related morbidities (obesity, metabolic syndrome, cardiovascular disease, cancer, cognitive decline and mortality). This literature review describes preclinical and clinical evidence favoring the "anti-aging" therapeutic potential of metformin outside of T2DM. The rationale to the use of metformin as part of a combined therapy in a variety of clinical settings, allowing for a reduction of the chemotherapy dose in cancer patients, has also been discussed. In particular, the focus was on metformin action on RAS/RAF/MAPK pathway. In the end, the real challenge for metformin could be to fully demonstrate beneficial effects on health even in non-diabetic subjects.
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Affiliation(s)
- Teresa Salvatore
- Unit of Internal Medicine, Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Via Pansini, 5, 80131 Naples, Italy.
| | - Pia Clara Pafundi
- Unit of Internal Medicine, Department of Advanced Medical and Surgical Sciences, University of Campania "Luigi Vanvitelli", Piazza Miraglia, 2, 80138 Naples, Italy.
| | - Floriana Morgillo
- Division of Medical Oncology, Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Via Pansini, 5, 80131 Naples, Italy.
| | - Raimondo Di Liello
- Division of Medical Oncology, Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Via Pansini, 5, 80131 Naples, Italy.
| | - Raffaele Galiero
- Unit of Internal Medicine, Department of Advanced Medical and Surgical Sciences, University of Campania "Luigi Vanvitelli", Piazza Miraglia, 2, 80138 Naples, Italy.
| | - Riccardo Nevola
- Unit of Internal Medicine, Department of Advanced Medical and Surgical Sciences, University of Campania "Luigi Vanvitelli", Piazza Miraglia, 2, 80138 Naples, Italy.
| | - Raffaele Marfella
- Unit of Internal Medicine, Department of Advanced Medical and Surgical Sciences, University of Campania "Luigi Vanvitelli", Piazza Miraglia, 2, 80138 Naples, Italy.
| | - Lucio Monaco
- Unit of Internal Medicine, Department of Advanced Medical and Surgical Sciences, University of Campania "Luigi Vanvitelli", Piazza Miraglia, 2, 80138 Naples, Italy.
| | - Luca Rinaldi
- Unit of Internal Medicine, Department of Advanced Medical and Surgical Sciences, University of Campania "Luigi Vanvitelli", Piazza Miraglia, 2, 80138 Naples, Italy.
| | - Luigi Elio Adinolfi
- Unit of Internal Medicine, Department of Advanced Medical and Surgical Sciences, University of Campania "Luigi Vanvitelli", Piazza Miraglia, 2, 80138 Naples, Italy.
| | - Ferdinando Carlo Sasso
- Unit of Internal Medicine, Department of Advanced Medical and Surgical Sciences, University of Campania "Luigi Vanvitelli", Piazza Miraglia, 2, 80138 Naples, Italy.
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Metformin enhances the radiosensitizing effect of cisplatin in non-small cell lung cancer cell lines with different cisplatin sensitivities. Sci Rep 2019; 9:1282. [PMID: 30718758 PMCID: PMC6361966 DOI: 10.1038/s41598-018-38004-5] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Accepted: 12/18/2018] [Indexed: 12/11/2022] Open
Abstract
Cisplatin is an extensively used chemotherapeutic drug for lung cancer, but the development of resistance decreases its effectiveness in the treatments of non-small cell lung cancer (NSCLC). In this study, we examined the effects of metformin, a widely used antidiabetic drug, on cisplatin radiosensitization in NSCLC cell lines. Human NSCLC cell lines, A549 (cisplatin-resistant) and H460 (cisplatin-sensitive), were treated with metformin, cisplatin or a combination of both drugs before ionizing radiation. Cell proliferation, clonogenic assays, western blotting, cisplatin-DNA adduct formation and immunocytochemistry were used to characterize the treatments effects. Metformin increased the radiosensitivity of NSCLC cells. Metformin showed additive and over-additive effects in combination with cisplatin and the radiation response in the clonogenic assay in H460 and A549 cell lines (p = 0.018 for the interaction effect between cisplatin and metformin), respectively. At the molecular level, metformin led to a significant increase in cisplatin-DNA adduct formation compared with cisplatin alone (p < 0.01, ANOVA-F test). This was accompanied by a decreased expression of the excision repair cross-complementation 1 expression (ERCC1), a key enzyme in nucleotide excision repair pathway. Furthermore, compared with each treatment alone metformin in combination with cisplatin yielded the lowest level of radiation-induced Rad51 foci, an essential protein of homologous recombination repair. Ionizing radiation-induced γ-H2AX and 53BP1 foci persisted longer in both cell lines in the presence of metformin. Pharmacological inhibition of AMP-activated protein kinase (AMPK) demonstrated that metformin enhances the radiosensitizing effect of cisplatin through an AMPK-dependent pathway only in H460 but not in A549 cells. Our results suggest that metformin can enhance the effect of combined cisplatin and radiotherapy in NSCLC and can sensitize these cells to radiation that are not sensitized by cisplatin alone.
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Lukina MM, Dudenkova VV, Ignatova NI, Druzhkova IN, Shimolina LE, Zagaynova EV, Shirmanova MV. Metabolic cofactors NAD(P)H and FAD as potential indicators of cancer cell response to chemotherapy with paclitaxel. Biochim Biophys Acta Gen Subj 2018; 1862:1693-1700. [PMID: 29719197 DOI: 10.1016/j.bbagen.2018.04.021] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 04/20/2018] [Accepted: 04/26/2018] [Indexed: 10/17/2022]
Abstract
Paclitaxel, a widely used antimicrotubular agent, predominantly eliminates rapidly proliferating cancer cells, while slowly proliferating and quiescent cells can survive the treatment, which is one of the main reasons for tumor recurrence and non-responsiveness to the drug. To improve the efficacy of chemotherapy, biomarkers need to be developed to enable monitoring of tumor responses. In this study we considered the auto-fluorescent metabolic cofactors NAD(P)H and FAD as possible indicators of cancer cell response to therapy with paclitaxel. It was found that, among the tested parameters (the fluorescence intensity-based redox ratio FAD/NAD(P)H, and the fluorescence lifetimes of NAD(P)H and FAD), the fluorescence lifetime of NAD(P)H is the most sensitive in tracking the drug response, and is capable of indicating heterogeneous cellular responses both in cell monolayers and in multicellular tumor spheroids. We observed that metabolic reorganization to a more oxidative state preceded the morphological manifestation of cell death and developed faster in cells that were more responsive to the drug. Our results suggest that noninvasive, label-free monitoring of the drug-induced metabolic changes by noting the NAD(P)H fluorescence lifetime is a valuable approach to characterize the responses of cancer cells to anti-cancer treatments and, therefore, to predict the effectiveness of chemotherapy.
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Affiliation(s)
- Maria M Lukina
- Institute of Biomedical Technologies, Privolzhsky Research Medical University, 10/1 Minin and Pozharsky Sq., 603005 Nizhny Novgorod, Russia; Institute of Biology and Biomedicine, Lobachevsky State University of Nizhny Novgorod, 23 Gagarin Ave., 603950 Nizhny Novgorod, Russia
| | - Varvara V Dudenkova
- Institute of Biomedical Technologies, Privolzhsky Research Medical University, 10/1 Minin and Pozharsky Sq., 603005 Nizhny Novgorod, Russia; Institute of Biology and Biomedicine, Lobachevsky State University of Nizhny Novgorod, 23 Gagarin Ave., 603950 Nizhny Novgorod, Russia
| | - Nadezhda I Ignatova
- Institute of Biomedical Technologies, Privolzhsky Research Medical University, 10/1 Minin and Pozharsky Sq., 603005 Nizhny Novgorod, Russia
| | - Irina N Druzhkova
- Institute of Biomedical Technologies, Privolzhsky Research Medical University, 10/1 Minin and Pozharsky Sq., 603005 Nizhny Novgorod, Russia
| | - Lyubov' E Shimolina
- Institute of Biomedical Technologies, Privolzhsky Research Medical University, 10/1 Minin and Pozharsky Sq., 603005 Nizhny Novgorod, Russia; Institute of Biology and Biomedicine, Lobachevsky State University of Nizhny Novgorod, 23 Gagarin Ave., 603950 Nizhny Novgorod, Russia
| | - Elena V Zagaynova
- Institute of Biomedical Technologies, Privolzhsky Research Medical University, 10/1 Minin and Pozharsky Sq., 603005 Nizhny Novgorod, Russia
| | - Marina V Shirmanova
- Institute of Biomedical Technologies, Privolzhsky Research Medical University, 10/1 Minin and Pozharsky Sq., 603005 Nizhny Novgorod, Russia.
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Roy S, Roy S, Kar M, Padhi S, Saha A, Anuja K, Banerjee B. Role of p38 MAPK in disease relapse and therapeutic resistance by maintenance of cancer stem cells in head and neck squamous cell carcinoma. J Oral Pathol Med 2018; 47:492-501. [PMID: 29575240 DOI: 10.1111/jop.12707] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/16/2018] [Indexed: 12/19/2022]
Abstract
AIM This study aimed to investigate the role of p38 MAPK in maintenance of cancer stem cell (CSC) phenotype, therapy resistance, and DNA damage repair and response in head and neck squamous cell carcinoma (HNSCC). METHODS In this study, 104 HNSCC patients were included. Western blot, immunohistochemistry, and qPCR analysis were performed to investigate the expression level of p-p38 and CSC markers in cut margin and tumor area of HNSCC patients. The expression level of p-p38 and CSC markers was also evaluated in HNSCC cells with or without p38 inhibitor. Chemoresistance, wound healing capacity, and multicellular tumor spheroids (MCTS) formation capacity were evaluated in HNSCC-derived cell lines with or without p38 inhibitor. In addition, DNA damage response and repair capacities were also evaluated in HNSCC cells after p38 inhibition using alkaline comet assay and γ-H2 AX immunostaining. RESULT We observed that recurrence could be associated with upregulated status of p-p38 and p38α gene in cut margin area of HNSCC patients as compared to tumor region. p38-inhibited cells showed significantly reduced expression of CSC markers, chemosensitivity toward cisplatin, reduced migration potential, and sphere-forming ability along with increased apoptotic population after treatment with increasing concentration of cisplatin. p38-inhibited cells also exhibited significantly increased comet olive tail moment and accumulation of γ-H2 AX, demonstrating increased DNA damage. CONCLUSION This study demonstrated that p38 MAPK activation may play a role in therapeutic resistance and disease relapse in HNSCC by maintenance of CSCs phenotype.
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Affiliation(s)
- Shomereeta Roy
- Molecular Stress and Stem Cell Biology Group, School of Biotechnology, KIIT University, Bhubaneswar, Odisha, India
| | - Souvick Roy
- Molecular Stress and Stem Cell Biology Group, School of Biotechnology, KIIT University, Bhubaneswar, Odisha, India
| | - Madhabananda Kar
- Department of Surgical Oncology, All India Institute of Medical Sciences (AIIMS), Bhubaneswar, Odisha, India
| | - Swatishree Padhi
- Molecular Stress and Stem Cell Biology Group, School of Biotechnology, KIIT University, Bhubaneswar, Odisha, India
| | - Arka Saha
- Molecular Stress and Stem Cell Biology Group, School of Biotechnology, KIIT University, Bhubaneswar, Odisha, India
| | - Kumari Anuja
- Molecular Stress and Stem Cell Biology Group, School of Biotechnology, KIIT University, Bhubaneswar, Odisha, India
| | - Birendranath Banerjee
- Molecular Stress and Stem Cell Biology Group, School of Biotechnology, KIIT University, Bhubaneswar, Odisha, India
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Dogan Turacli I, Candar T, Yuksel BE, Demirtas S. Role of metformin on base excision repair pathway in p53 wild-type H2009 and HepG2 cancer cells. Hum Exp Toxicol 2017; 37:909-919. [DOI: 10.1177/0960327117737145] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The antidiabetic agent metformin was shown to further possess chemopreventive and chemotherapeutic effects against cancer. Despite the advances, the underlying molecular mechanisms involved in decreasing tumor formation are still unclear. The understanding of the participation of oxidative stress in the action mechanism of metformin and its related effects on p53 and on DNA base excision repair (BER) system can help us to get closer to solve metformin puzzle in cancer. We investigated the effects of metformin in HepG2 and H2009 cells, verifying cytotoxicity, oxidative stress, antioxidant status, and DNA BER system. Our results showed metformin induced oxidative stress and reduced antioxidant capacity. Also, metformin treatment with hydrogen peroxide (H2O2) enhanced these effects. Although DNA BER enzyme activities were not changed accordantly together by metformin as a single agent or in combination with H2O2, activated p53 was decreased with increased oxidative stress in H2009 cells. Our study on the relationship between metformin/reactive oxygen species and DNA BER system in cancer cells would be helpful to understand the anticancer effects of metformin through cellular signal transduction pathways. These findings can be a model of the changes on oxidative stress that reflects p53’s regulatory role on DNA repair systems in cancer for the future studies.
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Affiliation(s)
- Irem Dogan Turacli
- Department of Medical Biology, Faculty of Medicine, Ufuk University, Ankara, Turkey
| | - Tuba Candar
- Department of Medical Biochemistry, Faculty of Medicine, Ufuk University, Ankara, Turkey
| | - Berrin Emine Yuksel
- Department of Medical Genetics, Faculty of Medicine, Ufuk University, Ankara, Turkey
| | - Selda Demirtas
- Department of Medical Biochemistry, Faculty of Medicine, Ufuk University, Ankara, Turkey
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Guo J, Xu K, An M, Zhao Y. Metformin and endometrial cancer survival: a quantitative synthesis of observational studies. Oncotarget 2017; 8:66169-66177. [PMID: 29029501 PMCID: PMC5630401 DOI: 10.18632/oncotarget.19830] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Accepted: 06/28/2017] [Indexed: 01/26/2023] Open
Abstract
Metformin has been reported to have anticancer effect and can affect patient survival in several malignancies. However, the results are inconclusive for endometrial cancer. Hence, we conducted a systematic review and meta-analysis to investigate the prognostic role of metformin in patients with endometrial cancer. Studies were identified from Pubmed and Embase database through March 2017. Observational studies reporting hazard ratios (HRs) with 95% confidence intervals (CIs) for overall survival (OS) and progression-free survival (PFS) were selected. Data were abstracted and summarised using random-effects models. From 250 unique citations, we identified ten studies including 6242 patients with nine studies examining OS and five studies examining PFS. Meta-analysis demonstrated that metformin users had better OS (HR, 0.58; 95% CI, 0.45 to 0.76; P = 0.207, I2 = 26.6%) and PFS (HR, 0.61; 95% CI, 0.49 to 0.76; P =0.768, I2 = 0%) than non-users for endometrial cancer patients. Similar findings were observed using sensitivity analysis adjusted by trim and filled methods (HR, 0.47; 95% CI, 0.37 to 0.58) and subgroup analyses. Based on the current evidence, we find that metformin use is associated with better OS and PFS in patients with endometrial cancer. However, further large-scale prospective studies are needed to establish its validity.
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Affiliation(s)
- Jianfeng Guo
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Kai Xu
- Department of Otolaryngology-Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Min An
- ZhuJiang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Yingchao Zhao
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
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27
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Yousef M, Tsiani E. Metformin in Lung Cancer: Review of in Vitro and in Vivo Animal Studies. Cancers (Basel) 2017; 9:cancers9050045. [PMID: 28481268 PMCID: PMC5447955 DOI: 10.3390/cancers9050045] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Revised: 05/02/2017] [Accepted: 05/03/2017] [Indexed: 12/19/2022] Open
Abstract
Cancer cells display enhanced growth rates and a resistance to apoptosis. The ability of cancer cells to evade homeostasis and proliferate uncontrollably while avoiding programmed cell death/apoptosis is acquired through mutations to key signaling molecules, which regulate pathways involved in cell proliferation and survival and these mutations allow them to develop resistance to many chemotherapeutic agents, highlighting the need for development of new potent anti-cancer agents. Metformin has long been used as a treatment for type 2 diabetes and has recently attracted attention as a potential agent to be used in the treatment of cancer. The present review summarizes the existing in vitro and in vivo animal studies focusing on the anti-lung cancer effects of metformin and its effects on key proliferative and anti-apoptotic signaling pathways.
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Affiliation(s)
- Michael Yousef
- Department of Health Sciences, Brock University, St. Catharines, ON L2S 3A1, Canada.
| | - Evangelia Tsiani
- Department of Health Sciences, Brock University, St. Catharines, ON L2S 3A1, Canada.
- Centre for Bone and Muscle Health, Brock University, St. Catharines, ON L2S 3A1, Canada.
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28
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Combination of metformin with chemotherapeutic drugs via different molecular mechanisms. Cancer Treat Rev 2017; 54:24-33. [DOI: 10.1016/j.ctrv.2017.01.005] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Revised: 01/09/2017] [Accepted: 01/11/2017] [Indexed: 12/23/2022]
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29
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Lei Y, Yi Y, Liu Y, Liu X, Keller ET, Qian CN, Zhang J, Lu Y. Metformin targets multiple signaling pathways in cancer. CHINESE JOURNAL OF CANCER 2017; 36:17. [PMID: 28126011 PMCID: PMC5270304 DOI: 10.1186/s40880-017-0184-9] [Citation(s) in RCA: 83] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Accepted: 06/21/2016] [Indexed: 12/20/2022]
Abstract
Metformin, an inexpensive and well-tolerated oral agent commonly used in the first-line treatment of type 2 diabetes, has become the focus of intense research as a candidate anticancer agent. Here, we discuss the potential of metformin in cancer therapeutics, particularly its functions in multiple signaling pathways, including AMP-activated protein kinase, mammalian target of rapamycin, insulin-like growth factor, c-Jun N-terminal kinase/mitogen-activated protein kinase (p38 MAPK), human epidermal growth factor receptor-2, and nuclear factor kappaB pathways. In addition, cutting-edge targeting of cancer stem cells by metformin is summarized.
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Affiliation(s)
- Yong Lei
- Key Laboratory of Longevity and Ageing-related Diseases, Ministry of Education, Nanning, 530021, Guangxi, P. R. China.,Center for Translational Medicine, Guangxi Medical University, 14th Floor, Pharmacology and Biomedical Sciences Building, No. 22 Shuangyong Road, Nanning, 530021, Guangxi, P. R. China
| | - Yanhua Yi
- School for International Education, Guangxi Medical University, Nanning, 530021, Guangxi, P. R. China
| | - Yang Liu
- Key Laboratory of Longevity and Ageing-related Diseases, Ministry of Education, Nanning, 530021, Guangxi, P. R. China.,Center for Translational Medicine, Guangxi Medical University, 14th Floor, Pharmacology and Biomedical Sciences Building, No. 22 Shuangyong Road, Nanning, 530021, Guangxi, P. R. China
| | - Xia Liu
- Key Laboratory of Longevity and Ageing-related Diseases, Ministry of Education, Nanning, 530021, Guangxi, P. R. China.,Center for Translational Medicine, Guangxi Medical University, 14th Floor, Pharmacology and Biomedical Sciences Building, No. 22 Shuangyong Road, Nanning, 530021, Guangxi, P. R. China
| | - Evan T Keller
- Department of Urology and Pathology, School of Medicine, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Chao-Nan Qian
- Department of Nasopharyngeal Carcinoma, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, Guangdong, P. R. China
| | - Jian Zhang
- Key Laboratory of Longevity and Ageing-related Diseases, Ministry of Education, Nanning, 530021, Guangxi, P. R. China. .,Center for Translational Medicine, Guangxi Medical University, 14th Floor, Pharmacology and Biomedical Sciences Building, No. 22 Shuangyong Road, Nanning, 530021, Guangxi, P. R. China. .,Department of Urology and Pathology, School of Medicine, University of Michigan, Ann Arbor, MI, 48109, USA.
| | - Yi Lu
- Key Laboratory of Longevity and Ageing-related Diseases, Ministry of Education, Nanning, 530021, Guangxi, P. R. China. .,Center for Translational Medicine, Guangxi Medical University, 14th Floor, Pharmacology and Biomedical Sciences Building, No. 22 Shuangyong Road, Nanning, 530021, Guangxi, P. R. China.
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30
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Sacco F, Calderone A, Castagnoli L, Cesareni G. The cell-autonomous mechanisms underlying the activity of metformin as an anticancer drug. Br J Cancer 2016; 115:1451-1456. [PMID: 27875520 PMCID: PMC5155371 DOI: 10.1038/bjc.2016.385] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Revised: 10/12/2016] [Accepted: 10/23/2016] [Indexed: 12/23/2022] Open
Abstract
The biguanide drug metformin profoundly affects cell metabolism, causing an impairment of the cell energy balance and triggering a plethora of pleiotropic effects that vary depending on the cellular or environmental context. Interestingly, a decade ago, it was observed that metformin-treated diabetic patients have a significantly lower cancer risk. Although a variety of in vivo and in vitro observations emphasising the role of metformin as anticancer drug have been reported, the underlying mechanisms are still poorly understood. Here, we discuss our current understanding of the molecular mechanisms that are perturbed by metformin treatment and that might be relevant to understand its antitumour activities. We focus on the cell-autonomous mechanisms modulating growth and death of cancer cells.
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Affiliation(s)
- Francesca Sacco
- Department of Biochemistry, Max Plank Institute, Martinsried (Munich) 82152, Germany
| | - Alberto Calderone
- IBBE-CNR at the Bioinformatics and Computational Biology Unit, Department of Biology, University of Rome Tor Vergata, Rome 00133, Italy
| | - Luisa Castagnoli
- Department of Biology, University of Rome Tor Vergata, Rome 00133, Italy
| | - Gianni Cesareni
- Department of Biology, University of Rome Tor Vergata, Rome 00133, Italy
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31
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Zhang HH, Guo XL. Combinational strategies of metformin and chemotherapy in cancers. Cancer Chemother Pharmacol 2016; 78:13-26. [PMID: 27118574 DOI: 10.1007/s00280-016-3037-3] [Citation(s) in RCA: 90] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Accepted: 04/12/2016] [Indexed: 12/11/2022]
Abstract
Chemotherapeutic regimens are the most common treatment to inhibit tumor growth, but there is great variability in clinical responses of cancer patients; cancer cells often develop resistance to chemotherapeutics which results in tumor recurrence and further progression. Metformin, an extensively prescribed and well-tolerated first-line therapeutic drug for type 2 diabetes mellitus, has recently been identified as a potential and attractive anticancer adjuvant drug combined with chemotherapeutic drugs to improve treatment efficacy and lower doses. In this review, we summarized the molecular mechanisms underlying anticancer effects of metformin, which included insulin- and AMPK-dependent effects, selectively targeting cancer stem cells, reversing multidrug resistance, inhibition of the tumor metastasis and described the antineoplastic effects of metformin combined with chemotherapeutic agents in digestive system cancers (colorectal, gastric, hepatic and pancreatic cancer), reproductive system cancers (ovarian and endometrial cancer), prostate cancer, breast cancer, lung cancer, etc. Moreover, the clinical trials regarding metformin in combination of chemotherapeutic drugs were presented and the clinical obstacle or limitation related to the potential role of metformin in cancer treatment was also discussed in this review.
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Affiliation(s)
- Hui-Hui Zhang
- Department of Pharmacology, School of Pharmaceutical Sciences, Shandong University, No. 44 Wen Hua Xi Road, Jinan, 250012, People's Republic of China
| | - Xiu-Li Guo
- Department of Pharmacology, School of Pharmaceutical Sciences, Shandong University, No. 44 Wen Hua Xi Road, Jinan, 250012, People's Republic of China.
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32
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Saxena A, Becker D, Preeshagul I, Lee K, Katz E, Levy B. Therapeutic Effects of Repurposed Therapies in Non-Small Cell Lung Cancer: What Is Old Is New Again. Oncologist 2015; 20:934-45. [PMID: 26156329 DOI: 10.1634/theoncologist.2015-0064] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2015] [Accepted: 04/17/2015] [Indexed: 02/07/2023] Open
Abstract
The recent emergence of targeted and immunotherapeutic agents has dramatically changed the management for patients with non-small cell lung cancer (NSCLC). Despite these advances, lung cancer is not exempt from the challenges facing oncology drug development, including the huge financial cost and the time required for drug implementation. Repositioning noncancer therapies with potential antineoplastic properties into new therapeutic niches is an alternative treatment strategy offering the possibility of saving money and time and improving outcomes. The goal of such a strategy is to deliver an effective drug with a favorable toxicity profile at a reduced cost. Preclinical models and observational data have demonstrated promising activity for many of these agents, and they are now being studied in prospective trials. We review the relevant published data regarding the therapeutic effects of metformin, statins, nonsteroidal anti-inflammatory drugs, β-blockers, and itraconazole in NSCLC, with a focus on the putative mechanisms of action and clinical data. As these drugs are increasingly being tested in clinical trials, we aim to highlight the salient challenges and future strategies to optimize this approach.
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Affiliation(s)
- Ashish Saxena
- Memorial Sloan Kettering Cancer Center, New York, New York, USA; St. Luke's Roosevelt Hospital, Mount Sinai Health System, New York, New York, USA; Mount Sinai Beth Israel Hospital, New York, New York, USA; Mount Sinai Hospital, Mount Sinai Health System, New York, New York, USA
| | - Daniel Becker
- Memorial Sloan Kettering Cancer Center, New York, New York, USA; St. Luke's Roosevelt Hospital, Mount Sinai Health System, New York, New York, USA; Mount Sinai Beth Israel Hospital, New York, New York, USA; Mount Sinai Hospital, Mount Sinai Health System, New York, New York, USA
| | - Isabel Preeshagul
- Memorial Sloan Kettering Cancer Center, New York, New York, USA; St. Luke's Roosevelt Hospital, Mount Sinai Health System, New York, New York, USA; Mount Sinai Beth Israel Hospital, New York, New York, USA; Mount Sinai Hospital, Mount Sinai Health System, New York, New York, USA
| | - Karen Lee
- Memorial Sloan Kettering Cancer Center, New York, New York, USA; St. Luke's Roosevelt Hospital, Mount Sinai Health System, New York, New York, USA; Mount Sinai Beth Israel Hospital, New York, New York, USA; Mount Sinai Hospital, Mount Sinai Health System, New York, New York, USA
| | - Elena Katz
- Memorial Sloan Kettering Cancer Center, New York, New York, USA; St. Luke's Roosevelt Hospital, Mount Sinai Health System, New York, New York, USA; Mount Sinai Beth Israel Hospital, New York, New York, USA; Mount Sinai Hospital, Mount Sinai Health System, New York, New York, USA
| | - Benjamin Levy
- Memorial Sloan Kettering Cancer Center, New York, New York, USA; St. Luke's Roosevelt Hospital, Mount Sinai Health System, New York, New York, USA; Mount Sinai Beth Israel Hospital, New York, New York, USA; Mount Sinai Hospital, Mount Sinai Health System, New York, New York, USA
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Lin JJ, Gallagher EJ, Sigel K, Mhango G, Galsky MD, Smith CB, LeRoith D, Wisnivesky JP. Survival of patients with stage IV lung cancer with diabetes treated with metformin. Am J Respir Crit Care Med 2015; 191:448-54. [PMID: 25522257 DOI: 10.1164/rccm.201407-1395oc] [Citation(s) in RCA: 102] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
RATIONALE Prior studies have shown an anticancer effect of metformin in patients with breast and colorectal cancer. It is unclear, however, whether metformin has a mortality benefit in lung cancer. OBJECTIVES To compare overall survival of patients with diabetes with stage IV non-small cell lung cancer (NSCLC) taking metformin versus those not on metformin. METHODS Using data from the Surveillance, Epidemiology, and End Results registry linked to Medicare claims, we identified 750 patients with diabetes 65-80 years of age diagnosed with stage IV NSCLC between 2007 and 2009. We used propensity score methods to assess the association of metformin use with overall survival while controlling for potential confounders. MEASUREMENTS AND MAIN RESULTS Overall, 61% of patients were on metformin at the time of lung cancer diagnosis. Median survival in the metformin group was 5 months, compared with 3 months in patients not treated with metformin (P < 0.001). Propensity score analyses showed that metformin use was associated with a statistically significant improvement in survival (hazard ratio, 0.80; 95% confidence interval, 0.71-0.89), after controlling for sociodemographics, diabetes severity, other diabetes medications, cancer characteristics, and treatment. CONCLUSIONS Metformin is associated with improved survival among patients with diabetes with stage IV NSCLC, suggesting a potential anticancer effect. Further research should evaluate plausible biologic mechanisms and test the effect of metformin in prospective clinical trials.
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Yao XM, Ye SD, Xiao CC, Gu JF, Yang D, Wang S. Metformin alleviates high glucose-mediated oxidative stress in rat glomerular mesangial cells by modulation of p38 mitogen-activated protein kinase expression in vitro. Mol Med Rep 2015; 12:520-6. [PMID: 25760137 DOI: 10.3892/mmr.2015.3446] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2014] [Accepted: 02/13/2015] [Indexed: 11/05/2022] Open
Abstract
The aim of the current study was to investigate the effects and mechanism of metformin in oxidative stress and p38 mitogen-activated protein kinase (p38MAPK) expression in rat glomerular mesangial cells (MCs) cultured in a high glucose medium. Rat glomerular MCs (HBZY-1) were cultured in complete medium and divided into the following five groups: Normal control (NC), high glucose (HG), metformin-treated, SB203580-treated (SB) and N-acetylcysteine-treated (NAC). The production of intracellular reactive oxygen species (ROS) in rat glomerular MCs was measured using flow cytometry. Superoxide dismutase (SOD) activity and malondialdehyde (MDA) content in the supernatant was detected using colorimetric analysis and an ELISA, respectively. p22phox mRNA levels in rat glomerular MCs were determined using reverse transcription-quantitative polymerase chain reaction. The levels of p22phox protein and phosphorylated p38 mitogen-activated protein kinase (p-p38MAPK) protein in rat glomerular MCs were determined by western blot analysis. Compared with the NC group, the activity of SOD in the supernatant was significantly reduced, whereas the levels of MDA in the supernatant, intracellular p22phox mRNA and protein, p-p38MAPK protein in addition to ROS production in rat glomerular MCs were significantly increased in the HG group (P<0.05). When metformin was added to the high glucose medium, the activity of SOD in supernatant fluid was increased significantly, whereas a significant reduction (P<0.05) was observed in the levels of MDA in the supernatant, intracellular p22phox mRNA and protein, p-p38MAPK protein in addition to ROS production in rat glomerular MCs. These results were similar to those obtained when SB203580 or N-acetylcysteine was added to the high glucose medium (P<0.05). In conclusion, metformin was suggested to alleviate high glucose-induced oxidative stress and p-p38MAPK protein expression in rat glomerular MCs, which may contribute to its reno‑protective abilities in diabetes.
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Affiliation(s)
- Xin-Ming Yao
- Department of Endocrinology, Anhui Provincial Hospital Affiliated to Anhui Medical University, Hefei, Anhui 230001, P.R. China
| | - Shan-Dong Ye
- Department of Endocrinology, Anhui Provincial Hospital Affiliated to Anhui Medical University, Hefei, Anhui 230001, P.R. China
| | - Chun-Chun Xiao
- Department of Endocrinology, Anhui Provincial Hospital Affiliated to Anhui Medical University, Hefei, Anhui 230001, P.R. China
| | - Jun-Fei Gu
- Department of Endocrinology, Anhui Provincial Hospital Affiliated to Anhui Medical University, Hefei, Anhui 230001, P.R. China
| | - Di Yang
- Department of Endocrinology, Anhui Provincial Hospital Affiliated to Anhui Medical University, Hefei, Anhui 230001, P.R. China
| | - Shan Wang
- Department of Endocrinology, Anhui Provincial Hospital Affiliated to Anhui Medical University, Hefei, Anhui 230001, P.R. China
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Tsai MJ, Yang CJ, Kung YT, Sheu CC, Shen YT, Chang PY, Huang MS, Chiu HC. Metformin decreases lung cancer risk in diabetic patients in a dose-dependent manner. Lung Cancer 2014; 86:137-43. [PMID: 25267165 DOI: 10.1016/j.lungcan.2014.09.012] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2014] [Revised: 09/05/2014] [Accepted: 09/11/2014] [Indexed: 12/22/2022]
Abstract
OBJECTIVES Higher risk of lung cancer has been noted in patients with type 2 diabetes mellitus (DM). Some observational studies have shown a reduced risk of lung cancer in DM patients taking metformin, but a dose-response relationship has never been reported. The aim of this study is to exam the association between the dose of metformin and the incidence of lung cancer in a Chinese population. MATERIALS AND METHODS The dataset used for this nationwide population-based study is a cohort of 1 million subjects randomly sampled from individuals enrolled in the Taiwan National Health Insurance system. We enrolled all subjects with newly diagnosed type 2 DM between 1997 and 2007. Subjects with a diagnosis of neoplasm before DM diagnosis, those using metformin before DM diagnosis, those with polycystic ovary syndrome, and those with a DM diagnosis before their 15 years of age were excluded. The demographic data and duration, cumulative dose and intensity of metformin use were compared between patients developing lung cancer and those without lung cancer. RESULTS Totally, 47,356 subjects were identified. After adjusting for age, gender, and modified Charlson Comorbidity Index score, the utilization of metformin was an independent protecting factor, and the risk of developing lung cancer decreased progressively with either the higher cumulative dose or the higher intensity of metformin use. CONCLUSIONS This study revealed that the use of metformin decreased the risk of lung cancer in a dose-dependent manner in patients with type 2 DM. The chemo-preventive effect of metformin deserves further study.
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Affiliation(s)
- Ming-Ju Tsai
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chih-Jen Yang
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Internal Medicine, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Internal Medicine, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Ya-Ting Kung
- Administration Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Healthcare Administration and Medical Informatics, College of Health Science, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chau-Chyun Sheu
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Internal Medicine, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yu-Ting Shen
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Pi-Yu Chang
- Administration Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Ming-Shyan Huang
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Internal Medicine, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.
| | - Herng-Chia Chiu
- Department of Healthcare Administration and Medical Informatics, College of Health Science, Kaohsiung Medical University, Kaohsiung, Taiwan.
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Xie Y, Peng Z, Shi M, Ji M, Guo H, Shi H. Metformin combined with p38 MAPK inhibitor improves cisplatin sensitivity in cisplatin‑resistant ovarian cancer. Mol Med Rep 2014; 10:2346-50. [PMID: 25118792 PMCID: PMC4214348 DOI: 10.3892/mmr.2014.2490] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Accepted: 07/18/2014] [Indexed: 11/06/2022] Open
Abstract
The aim of the present study was to determine the effects of metformin, combined with a p38 mitogen‑activated protein kinase (MAPK) inhibitor, on the sensitivity of cisplatin‑resistant ovarian cancer to cisplatin. The expression and distribution of phosphorylated p38 MAPK (P‑p38 MAPK) was confirmed in drug‑resistant and primary ovarian cancer tissues by immunohistochemistry and western blotting. A bromodeoxyuridine ELISA kit was used to analyze the effects of metformin, SB203580, a p38 MAPK inhibitor, and metformin combined with SB203580, on the cell proliferation of SKOV3/DDP cisplatin‑resistant ovarian cancer cells. The protein expression of P‑p38 MAPK was significantly higher in cisplatin‑resistant ovarian cancer, as compared with the primary ovarian cancer tissues. Metformin combined with SB203580 significantly enhanced the sensitivity of SKOV3/DDP cells to cisplatin. In conclusion, the p38 MAPK signaling pathway may be associated with cisplatin‑resistant ovarian cancer. Metformin, combined with the p38 MAPK inhibitor, significantly increased the sensitivity of SKOV3/DDP cells to cisplatin treatment.
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Affiliation(s)
- Ya Xie
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Zheng Peng
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Mingxing Shi
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Mei Ji
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Hongjun Guo
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Huirong Shi
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
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Zordoky BNM, Bark D, Soltys CL, Sung MM, Dyck JRB. The anti-proliferative effect of metformin in triple-negative MDA-MB-231 breast cancer cells is highly dependent on glucose concentration: implications for cancer therapy and prevention. Biochim Biophys Acta Gen Subj 2014; 1840:1943-57. [PMID: 24462945 DOI: 10.1016/j.bbagen.2014.01.023] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2013] [Revised: 01/13/2014] [Accepted: 01/15/2014] [Indexed: 12/29/2022]
Abstract
BACKGROUND Metformin has been shown to have a strong anti-proliferative effect in many breast cancer cell lines, mainly due to the activation of the energy sensing kinase, AMP-activated protein kinase (AMPK). MDA-MB-231 cells are aggressive and invasive breast cancer cells that are known to be resistant to several anti-cancer agents as well as to the anti-proliferative effect of metformin. As metformin is a glucose lowering drug, we hypothesized that normoglycemia will sensitize MDA-MB-231 cells to the anti-proliferative effect of metformin. METHODS MDA-MB-231 cells were treated with increasing metformin concentrations in hyperglycemic or normoglycemic conditions. The growth inhibitory effect of metformin was assessed by MTT assay. The expression of several proteins involved in cell proliferation was measured by Western blotting. RESULTS In agreement with previous studies, treatment with metformin did not inhibit the growth of MDA-MB-231 cells cultured in hyperglycemic conditions. However, metformin significantly inhibited MDA-MB-231 growth when the cells were cultured in normoglycemic conditions. In addition, we show that metformin-treatment of MDA-MB-231 cells cultured in normoglycemic conditions and not in hyperglycemic conditions caused a striking activation of AMPK, and an AMPK-dependent inhibition of multiple molecular signaling pathways known to control protein synthesis and cell proliferation. CONCLUSION Our data show that normoglycemia sensitizes the triple negative MDA-MB-231 breast cancer cells to the anti-proliferative effect of metformin through an AMPK-dependent mechanism. GENERAL SIGNIFICANCE These findings suggest that tight normoglycemic control may enhance the anti-proliferative effect of metformin in diabetic cancer patients.
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Affiliation(s)
- Beshay N M Zordoky
- Cardiovascular Research Centre, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - Diana Bark
- Cardiovascular Research Centre, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - Carrie L Soltys
- Cardiovascular Research Centre, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - Miranda M Sung
- Cardiovascular Research Centre, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - Jason R B Dyck
- Cardiovascular Research Centre, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada.
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Hann SS, Chen J, Wang Z, Wu J, Zheng F, Zhao S. Targeting EP4 by curcumin through cross talks of AMP-dependent kinase alpha and p38 mitogen-activated protein kinase signaling: The role of PGC-1α and Sp1. Cell Signal 2013; 25:2566-74. [DOI: 10.1016/j.cellsig.2013.08.020] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2013] [Revised: 08/11/2013] [Accepted: 08/13/2013] [Indexed: 11/25/2022]
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La Vecchia C, Bosetti C. Metformin: are potential benefits on cancer risk extended to cancer survival? Oncologist 2013; 18:1245-7. [PMID: 24258614 DOI: 10.1634/theoncologist.2013-0381] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Affiliation(s)
- Carlo La Vecchia
- Department of Epidemiology, IRCCS-lstituto di Ricerche Farmacologiche Mario Negri, Milano, Italy
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Yin M, Zhou J, Gorak EJ, Quddus F. Metformin is associated with survival benefit in cancer patients with concurrent type 2 diabetes: a systematic review and meta-analysis. Oncologist 2013; 18:1248-55. [PMID: 24258613 DOI: 10.1634/theoncologist.2013-0111] [Citation(s) in RCA: 117] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
UNLABELLED Patients with type 2 diabetes have increased cancer risk and cancer-related mortality, which can be reduced by metformin treatment. However, it is unclear whether metformin can also modulate clinical outcomes in patients with cancer and concurrent type 2 diabetes. PATIENTS AND METHODS A meta-analysis of 20 publications that included 13,008 subjects was performed to investigate the association between metformin and overall survival (OS) as well as cancer-specific survival (CSS) in patients with cancer and concurrent type 2 diabetes. RESULTS We found that there was a relative survival benefit associated with metformin treatment compared with treatment with other glucose-lowering medications in both OS and CSS (hazard ratio [HR] = 0.66; 95% confidence interval [CI]: 0.55-0.79 and HR = 0.62; 95% CI: 0.46-0.84, respectively). These associations were also observed in subgroups by cancer type and country. CONCLUSION These results suggest that metformin is the drug of choice in the treatment of patients with cancer and concurrent type 2 diabetes.
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Morgillo F, Sasso FC, Della Corte CM, Festino L, Manzo A, Martinelli E, Troiani T, Capuano A, Ciardiello F. Metformin in lung cancer: rationale for a combination therapy. Expert Opin Investig Drugs 2013; 22:1401-9. [PMID: 23937224 DOI: 10.1517/13543784.2013.828691] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
INTRODUCTION Metformin is a widely used antidiabetic drug, which also displays significant growth inhibitory and proapoptotic effects in several cancer models, including lung cancer, alone or in combination with chemotherapeutic drugs. AREAS COVERED The role of metformin as a chemopreventive drug in lung cancer is still an object of debate as epidemiological studies have shown contrasting results. More preclinical data support its role as an adjuvant drug in the treatment of lung cancer, in combination with chemotherapy or targeted molecular drugs, although the complete mechanism of action of metformin is still unclear, and potentially may exert unexpected effects with contradictory clinical implications. EXPERT OPINION Future perspective studies are required in nonsmall-cell lung cancer (NSCLC) patients to better investigate the effect of metformin action on the RAS/RAF/MAPK pathway and the best context in which to use metformin in combination with molecularly targeted agents.
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Affiliation(s)
- Floriana Morgillo
- Oncologia Medica, Medicina Interna , Via S. Pansini 5, 80131 Napoli , Italia
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