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Taiyab A, Choudhury A, Haidar S, Yousuf M, Rathi A, Koul P, Chakrabarty A, Islam A, Shamsi A, Hassan MI. Exploring MTH1 inhibitory potential of Thymoquinone and Baicalin for therapeutic targeting of breast cancer. Biomed Pharmacother 2024; 173:116332. [PMID: 38430630 DOI: 10.1016/j.biopha.2024.116332] [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: 12/18/2023] [Revised: 02/20/2024] [Accepted: 02/22/2024] [Indexed: 03/05/2024] Open
Abstract
Cancers frequently have increased ROS levels due to disrupted redox balance, leading to oxidative DNA and protein damage, mutations, and apoptosis. The MTH1 protein plays a crucial role by sanitizing the oxidized dNTP pools. Hence, cancer cells rely on MTH1 to prevent the integration of oxidized dNTPs into DNA, preventing DNA damage and allowing cancer cell proliferation. We have discovered Thymoquinone (TQ) and Baicalin (BC) as inhibitors of MTH1 using combined docking and MD simulation approaches complemented by experimental validations via assessing binding affinity and enzyme inhibition. Docking and MD simulations studies revealed an efficient binding of TQ and BC to the active site pocket of the MTH1, and the resultant complexes are appreciably stable. Fluorescence measurements estimated a strong binding affinity of TQ and BC with Ka 3.4 ×106 and 1.0 ×105, respectively. Treating breast cancer cells with TQ and BC significantly inhibited the growth and proliferation (IC50 values 28.3 µM and 34.8 µM) and induced apoptosis. TQ and BC increased the ROS production in MCF7 cells, imposing substantial oxidative stress on cancer cells and leading to cell death. Finally, TQ and BC are proven strong MTH1 inhibitors, offering promising prospects for anti-cancer therapy.
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Affiliation(s)
- Aaliya Taiyab
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Arunabh Choudhury
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Shaista Haidar
- Department of Life Sciences, School of Natural Sciences, Shiv Nadar Institution of Eminence Deemed to be University, NH91, Tehsil Dadri, Gautam Buddha Nagar, Uttar Pradesh 201314, India
| | - Mohd Yousuf
- Department of Biotechnology, Faculty of Natural Sciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Aanchal Rathi
- Department of Bioscience, Faculty of Natural Sciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Priyanka Koul
- Department of Biotechnology, Faculty of Natural Sciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Anindita Chakrabarty
- Department of Life Sciences, School of Natural Sciences, Shiv Nadar Institution of Eminence Deemed to be University, NH91, Tehsil Dadri, Gautam Buddha Nagar, Uttar Pradesh 201314, India
| | - Asimul Islam
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Anas Shamsi
- Centre of Medical and Bio-Allied Health Sciences Research, Ajman University, Ajman 364, United Arab Emirates.
| | - Md Imtaiyaz Hassan
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi 110025, India.
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2
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Zhang Y, Hao M, Yang X, Zhang S, Han J, Wang Z, Chen HN. Reactive oxygen species in colorectal cancer adjuvant therapies. Biochim Biophys Acta Mol Basis Dis 2024; 1870:166922. [PMID: 37898425 DOI: 10.1016/j.bbadis.2023.166922] [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: 07/18/2023] [Revised: 09/27/2023] [Accepted: 10/18/2023] [Indexed: 10/30/2023]
Abstract
Colorectal cancer (CRC), a prevalent global malignancy, often necessitates adjuvant therapies such as chemotherapy, radiotherapy, targeted therapy, and immunotherapy to mitigate tumor burden in advanced stages. The efficacy of these therapies is significantly influenced by reactive oxygen species (ROS). Previous research underscores the pivotal role of ROS in gut pathology, targeted therapy, and drug resistance. ROS-mediated CRC adjuvant therapies encompass a myriad of mechanisms, including cell death and proliferation, survival and cell cycle, DNA damage, metabolic reprogramming, and angiogenesis. Preliminary clinical trials have begun to unveil the potential of ROS-manipulating therapy in enhancing CRC adjuvant therapies. This review aims to provide a comprehensive synthesis of studies exploring the role of ROS in CRC adjuvant therapies.
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Affiliation(s)
- Yang Zhang
- Colorectal Cancer Center and Department of General Surgery, West China Hospital, Sichuan University, Chengdu 610041, China; Research Laboratory of Tumor Epigenetics and Genomics, Department of General Surgery, Frontiers Science Center for Disease-related Molecular Network and National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Mengqiu Hao
- Research Laboratory of Tumor Epigenetics and Genomics, Department of General Surgery, Frontiers Science Center for Disease-related Molecular Network and National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Xuyang Yang
- Colorectal Cancer Center and Department of General Surgery, West China Hospital, Sichuan University, Chengdu 610041, China; Research Laboratory of Tumor Epigenetics and Genomics, Department of General Surgery, Frontiers Science Center for Disease-related Molecular Network and National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Su Zhang
- Research Laboratory of Tumor Epigenetics and Genomics, Department of General Surgery, Frontiers Science Center for Disease-related Molecular Network and National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Junhong Han
- Research Laboratory of Tumor Epigenetics and Genomics, Department of General Surgery, Frontiers Science Center for Disease-related Molecular Network and National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Ziqiang Wang
- Colorectal Cancer Center and Department of General Surgery, West China Hospital, Sichuan University, Chengdu 610041, China; Research Laboratory of Tumor Epigenetics and Genomics, Department of General Surgery, Frontiers Science Center for Disease-related Molecular Network and National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China.
| | - Hai-Ning Chen
- Colorectal Cancer Center and Department of General Surgery, West China Hospital, Sichuan University, Chengdu 610041, China; Research Laboratory of Tumor Epigenetics and Genomics, Department of General Surgery, Frontiers Science Center for Disease-related Molecular Network and National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China.
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3
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Ding Y, Liu Q. Targeting the nucleic acid oxidative damage repair enzyme MTH1: a promising therapeutic option. Front Cell Dev Biol 2024; 12:1334417. [PMID: 38357002 PMCID: PMC10864502 DOI: 10.3389/fcell.2024.1334417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 01/17/2024] [Indexed: 02/16/2024] Open
Abstract
The accumulation of reactive oxygen species (ROS) plays a pivotal role in the development of various diseases, including cancer. Elevated ROS levels cause oxidative stress, resulting in detrimental effects on organisms and enabling tumors to develop adaptive responses. Targeting these enhanced oxidative stress protection mechanisms could offer therapeutic benefits with high specificity, as normal cells exhibit lower dependency on these pathways. MTH1 (mutT homolog 1), a homolog of Escherichia coli's MutT, is crucial in this context. It sanitizes the nucleotide pool, preventing incorporation of oxidized nucleotides, thus safeguarding DNA integrity. This study explores MTH1's potential as a therapeutic target, particularly in cancer treatment, providing insights into its structure, function, and role in disease progression.
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Affiliation(s)
| | - Qingquan Liu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Gannan Medical University, Jiangxi, China
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4
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Coskun E, Singh N, Scanlan LD, Jaruga P, Doak SH, Dizdaroglu M, Nelson BC. Inhibition of human APE1 and MTH1 DNA repair proteins by dextran-coated γ-Fe 2O 3 ultrasmall superparamagnetic iron oxide nanoparticles. Nanomedicine (Lond) 2022; 17:2011-2021. [PMID: 36853189 PMCID: PMC10031551 DOI: 10.2217/nnm-2022-0204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2023] Open
Abstract
Aim: To quantitatively evaluate the inhibition of human DNA repair proteins APE1 and MTH1 by dextran-coated γ-Fe2O3 ultrasmall superparamagnetic iron oxide nanoparticles (dUSPIONs). Materials & methods: Liquid chromatography-tandem mass spectrometry with isotope-dilution was used to measure the expression levels of APE1 and MTH1 in MCL-5 cells exposed to increasing doses of dUSPIONs. The expression levels of APE1 and MTH1 were measured in cytoplasmic and nuclear fractions of cell extracts. Results: APE1 and MTH1 expression was significantly inhibited in both cell fractions at the highest dUSPION dose. The expression of MTH1 was linearly inhibited across the full dUSPION dose range in both fractions. Conclusion: These findings warrant further studies to characterize the capacity of dUSPIONs to inhibit other DNA repair proteins in vitro and in vivo.
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Affiliation(s)
- Erdem Coskun
- Institute for Bioscience & Biotechnology Research, University of Maryland, Rockville, MD 20850, USA
| | - Neenu Singh
- Leicester School of Allied Health Sciences, Faculty of Health & Life Sciences, De Montfort University, The Gateway, Leicester, LE1 9BH, UK
| | - Leona D Scanlan
- California Environmental Protection Agency, Office of Environmental Health Hazard Assessment, 1001 I Street, Sacramento, CA 95814, USA
| | - Pawel Jaruga
- Biomolecular Measurement Division, National Institute of Standards & Technology, Gaithersburg, MD 20899, USA
| | - Shareen H Doak
- Institute of Life Science, Center for NanoHealth, Swansea University Medical School, Wales, SA2 8PP, UK
| | - Miral Dizdaroglu
- Biomolecular Measurement Division, National Institute of Standards & Technology, Gaithersburg, MD 20899, USA
| | - Bryant C Nelson
- Biosystems & Biomaterials Division, National Institute of Standards & Technology, Gaithersburg, MD 20899, USA
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5
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Li J, Wang ZH, Dang YM, Li DN, Liu Z, Dai DP, Cai JP. MTH1 suppression enhances the stemness of MCF7 through upregulation of STAT3. Free Radic Biol Med 2022; 188:447-458. [PMID: 35809767 DOI: 10.1016/j.freeradbiomed.2022.06.240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 06/20/2022] [Accepted: 06/22/2022] [Indexed: 11/22/2022]
Abstract
MTH1 protein can sanitize the damaged (d)NTP pool and MTH1 inhibitors have been developed to impede the growth of rapidly proliferating tumor cells; however, the effect of MTH1 inhibition on breast cancer stemness has not been reported yet. Here, we constructed breast cancer cell lines with the stable depletion of MTH1. MTH1 suppression clearly increased the ratio of CD44+CD24-/low subpopulations and promoted the formation of tumorspheres in MCF7 and T47D cells. RNA expression profiling, RT-qPCR and Western blotting showed the upregulation of master stem cell transcription factors Sox2, Oct4 and Nanog in MTH1 knockdown cells. GSEA suggested and Western blotting verified that MTH1 knockdown increased the expression of phosphorylated STAT3 (Tyr705). Furthermore, we indirectly demonstrated that the increased concentration of 8-oxo-dGTP and 8-oxo-GTP in MTH1-knockdown cells and exogenous 8-oxoGTP, rather than 8-oxo-dGTP, could significantly increase the phosphorylation of STAT3. In conclusion, this work indicates that MTH1 inhibition increased the proportion of breast cancer stem cells (BCSCs) and promoted stemness properties in MCF7 cells.
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Affiliation(s)
- Jin Li
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Beijing Hospital, National Center of Gerontology, National Health Commission, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, PR China
| | - Zi-Hui Wang
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Beijing Hospital, National Center of Gerontology, National Health Commission, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, PR China; Graduate School of Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, PR China
| | - Ya-Min Dang
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Beijing Hospital, National Center of Gerontology, National Health Commission, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, PR China; Graduate School of Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, PR China
| | - Dan-Ni Li
- The Clinical Laboratory of Beijing Hospital, Ministry of Health, Beijing, PR China
| | - Zhen Liu
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Beijing Hospital, National Center of Gerontology, National Health Commission, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, PR China; Graduate School of Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, PR China
| | - Da-Peng Dai
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Beijing Hospital, National Center of Gerontology, National Health Commission, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, PR China
| | - Jian-Ping Cai
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Beijing Hospital, National Center of Gerontology, National Health Commission, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, PR China.
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6
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Centio A, Estruch M, Reckzeh K, Sanjiv K, Vittori C, Engelhard S, Warpman Berglund U, Helleday T, Theilgaard-Mönch K. Inhibition of Oxidized Nucleotide Sanitation By TH1579 and Conventional Chemotherapy Cooperatively Enhance Oxidative DNA Damage and Survival in AML. Mol Cancer Ther 2022; 21:703-714. [PMID: 35247918 DOI: 10.1158/1535-7163.mct-21-0185] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 12/20/2021] [Accepted: 02/09/2022] [Indexed: 11/16/2022]
Abstract
Currently, the majority of patients with acute myeloid leukemia (AML) still die of their disease due to primary resistance or relapse toward conventional reactive oxygen species (ROS)- and DNA damage-inducing chemotherapy regimens. Herein, we explored the therapeutic potential to enhance chemotherapy response in AML, by targeting the ROS scavenger enzyme MutT homolog 1 (MTH1, NUDT1), which protects cellular integrity through prevention of fatal chemotherapy-induced oxidative DNA damage. We demonstrate that MTH1 is a potential druggable target expressed by the majority of patients with AML and the inv(16)/KITD816Y AML mouse model mimicking the genetics of patients with AML exhibiting poor response to standard chemotherapy (i.e., anthracycline & cytarabine). Strikingly, combinatorial treatment of inv(16)/KITD816Y AML cells with the MTH1 inhibitor TH1579 and ROS- and DNA damage-inducing standard chemotherapy induced growth arrest and incorporated oxidized nucleotides into DNA leading to significantly increased DNA damage. Consistently, TH1579 and chemotherapy synergistically inhibited growth of clonogenic inv(16)/KITD816Y AML cells without substantially inhibiting normal clonogenic bone marrow cells. In addition, combinatorial treatment of inv(16)/KITD816Y AML mice with TH1579 and chemotherapy significantly reduced AML burden and prolonged survival compared with untreated or single treated mice. In conclusion, our study provides a rationale for future clinical studies combining standard AML chemotherapy with TH1579 to boost standard chemotherapy response in patients with AML. Moreover, other cancer entities treated with ROS- and DNA damage-inducing chemo- or radiotherapies might benefit therapeutically from complementary treatment with TH1579.
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Affiliation(s)
- Anders Centio
- The Finsen Laboratory, Centre for Cancer and Organ Diseases, Rigshospitalet/National University Hospital, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.,Biotech Research and Innovation Center, Faculty of Health and Medical Sciences (BRIC), University of Copenhagen, Copenhagen, Denmark
| | - Montserrat Estruch
- The Finsen Laboratory, Centre for Cancer and Organ Diseases, Rigshospitalet/National University Hospital, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.,Biotech Research and Innovation Center, Faculty of Health and Medical Sciences (BRIC), University of Copenhagen, Copenhagen, Denmark
| | - Kristian Reckzeh
- The Finsen Laboratory, Centre for Cancer and Organ Diseases, Rigshospitalet/National University Hospital, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.,Biotech Research and Innovation Center, Faculty of Health and Medical Sciences (BRIC), University of Copenhagen, Copenhagen, Denmark.,Novo Nordisk Foundation Center for Stem Cell Biology, Centre for Stem Cell Research and Developmental Biology (DanStem), Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Kumar Sanjiv
- Science for Life Laboratory, Department of Oncology-Pathology, Karolinska Institute, Stockholm, Sweden
| | - Camilla Vittori
- The Finsen Laboratory, Centre for Cancer and Organ Diseases, Rigshospitalet/National University Hospital, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.,Biotech Research and Innovation Center, Faculty of Health and Medical Sciences (BRIC), University of Copenhagen, Copenhagen, Denmark
| | - Sophia Engelhard
- The Finsen Laboratory, Centre for Cancer and Organ Diseases, Rigshospitalet/National University Hospital, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.,Biotech Research and Innovation Center, Faculty of Health and Medical Sciences (BRIC), University of Copenhagen, Copenhagen, Denmark
| | - Ulrika Warpman Berglund
- Science for Life Laboratory, Department of Oncology-Pathology, Karolinska Institute, Stockholm, Sweden
| | - Thomas Helleday
- Science for Life Laboratory, Department of Oncology-Pathology, Karolinska Institute, Stockholm, Sweden
| | - Kim Theilgaard-Mönch
- The Finsen Laboratory, Centre for Cancer and Organ Diseases, Rigshospitalet/National University Hospital, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.,Biotech Research and Innovation Center, Faculty of Health and Medical Sciences (BRIC), University of Copenhagen, Copenhagen, Denmark.,Novo Nordisk Foundation Center for Stem Cell Biology, Centre for Stem Cell Research and Developmental Biology (DanStem), Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.,Department of Hematology, Rigshospitalet/National University Hospital, University of Copenhagen, Copenhagen, Denmark
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7
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Wright RHG, Beato M. Role of the NUDT Enzymes in Breast Cancer. Int J Mol Sci 2021; 22:2267. [PMID: 33668737 PMCID: PMC7956304 DOI: 10.3390/ijms22052267] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 02/18/2021] [Accepted: 02/23/2021] [Indexed: 02/07/2023] Open
Abstract
Despite global research efforts, breast cancer remains the leading cause of cancer death in women worldwide. The majority of these deaths are due to metastasis occurring years after the initial treatment of the primary tumor and occurs at a higher frequency in hormone receptor-positive (Estrogen and Progesterone; HR+) breast cancers. We have previously described the role of NUDT5 (Nudix-linked to moiety X-5) in HR+ breast cancer progression, specifically with regards to the growth of breast cancer stem cells (BCSCs). BCSCs are known to be the initiators of epithelial-to-mesenchyme transition (EMT), metastatic colonization, and growth. Therefore, a greater understanding of the proteins and signaling pathways involved in the metastatic process may open the door for therapeutic opportunities. In this review, we discuss the role of NUDT5 and other members of the NUDT family of enzymes in breast and other cancer types. We highlight the use of global omics data based on our recent phosphoproteomic analysis of progestin signaling pathways in breast cancer cells and how this experimental approach provides insight into novel crosstalk mechanisms for stratification and drug discovery projects aiming to treat patients with aggressive cancer.
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Affiliation(s)
- Roni H. G. Wright
- Center for Genomic Regulation (CRG), Barcelona Institute of Science and Technology (BIST), Dr. Aiguader 88, 08003 Barcelona, Spain
- Basic Sciences Department, Faculty of Medicine and Health Sciences, Universitat Internacional de Catalunya, 08003 Barcelona, Spain
| | - Miguel Beato
- Center for Genomic Regulation (CRG), Barcelona Institute of Science and Technology (BIST), Dr. Aiguader 88, 08003 Barcelona, Spain
- Department of Life Science, Universitat Pompeu Fabra (UPF), 08003 Barcelona, Spain
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8
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Zhang L, Misiara L, Samaranayake GJ, Sharma N, Nguyen DM, Tahara YK, Kool ET, Rai P. OGG1 co-inhibition antagonizes the tumor-inhibitory effects of targeting MTH1. Redox Biol 2021; 40:101848. [PMID: 33450725 PMCID: PMC7810763 DOI: 10.1016/j.redox.2020.101848] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 12/10/2020] [Accepted: 12/22/2020] [Indexed: 12/30/2022] Open
Abstract
Cancer cells develop protective adaptations against oxidative DNA damage, providing a strong rationale for targeting DNA repair proteins. There has been a high degree of recent interest in inhibiting the mammalian Nudix pyrophosphatase MutT Homolog 1 (MTH1). MTH1 degrades 8-oxo-dGTP, thus limiting its incorporation into genomic DNA. MTH1 inhibition has variously been shown to induce genomic 8-oxo-dG elevation, genotoxic strand breaks in p53-functional cells, and tumor-inhibitory outcomes. Genomically incorporated 8-oxo-dG is excised by the base excision repair enzyme, 8-oxo-dG glycosylase 1 (OGG1). Thus, OGG1 inhibitors have been developed with the idea that their combination with MTH1 inhibitors will have anti-tumor effects by increasing genomic oxidative DNA damage. However, contradictory to this idea, we found that human lung adenocarcinoma with low OGG1 and MTH1 were robustly represented in patient datasets. Furthermore, OGG1 co-depletion mitigated the extent of DNA strand breaks and cellular senescence in MTH1-depleted p53-wildtype lung adenocarcinoma cells. Similarly, shMTH1-transduced cells were less sensitive to the OGG1 inhibitor, SU0268, than shGFP-transduced counterparts. Although the dual OGG1/MTH1 inhibitor, SU0383, induced greater cytotoxicity than equivalent combined or single doses of its parent scaffold MTH1 and OGG1 inhibitors, IACS-4759 and SU0268, this effect was only observed at the highest concentration assessed. Collectively, using both genetic depletion as well as small molecule inhibitors, our findings suggest that OGG1/MTH1 co-inhibition is unlikely to yield significant tumor-suppressive benefit. Instead such co-inhibition may exert tumor-protective effects by preventing base excision repair-induced DNA nicks and p53 induction, thus potentially conferring a survival advantage to the treated tumors. Low MTH1/low OGG1 tumors are robustly represented in patient lung adenocarcinoma datasets but low MTH1/high OGG1 are not. Co-depletion of OGG1 in lung adenocarcinoma cells mitigates shMTH1-induced DNA strand breaks and p53-induced senescence. p53-null tumor cells have lower OGG1 vs. wt p53 counterparts and are more resistant to MTH1 loss-induced anti-tumor effects. Pharmacologic co-inhibition of OGG1 and MTH1 does not enhance cytotoxicity over the respective single inhibitors.
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Affiliation(s)
- Ling Zhang
- Department of Radiation Oncology, University of Miami Medical School, FL 33136, USA
| | - Laura Misiara
- College of Arts and Sciences, University of Miami, FL 33146, USA
| | - Govindi J Samaranayake
- Sheila and David Fuente Graduate Program in Cancer Biology, University of Miami Medical School, FL 33136, USA
| | - Nisha Sharma
- College of Arts and Sciences, University of Miami, FL 33146, USA
| | - Dao M Nguyen
- Department of Surgery, University of Miami Medical School, FL 33136, USA; Sylvester Comprehensive Cancer Center, Miami, FL 33136, USA
| | - Yu-Ki Tahara
- Department of Chemistry, Stanford University, Stanford, CA 94305, USA
| | - Eric T Kool
- Department of Chemistry, Stanford University, Stanford, CA 94305, USA
| | - Priyamvada Rai
- Department of Radiation Oncology, University of Miami Medical School, FL 33136, USA; Sylvester Comprehensive Cancer Center, Miami, FL 33136, USA.
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9
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Yin Y, Chen F. Targeting human MutT homolog 1 (MTH1) for cancer eradication: current progress and perspectives. Acta Pharm Sin B 2020; 10:2259-2271. [PMID: 33354500 PMCID: PMC7745060 DOI: 10.1016/j.apsb.2020.02.012] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 02/11/2020] [Accepted: 02/21/2020] [Indexed: 01/20/2023] Open
Abstract
Since accelerated metabolism produces much higher levels of reactive oxygen species (ROS) in cancer cells compared to ROS levels found in normal cells, human MutT homolog 1 (MTH1), which sanitizes oxidized nucleotide pools, was recently demonstrated to be crucial for the survival of cancer cells, but not required for the proliferation of normal cells. Therefore, dozens of MTH1 inhibitors have been developed with the aim of suppressing cancer growth by accumulating oxidative damage in cancer cells. While several inhibitors were indeed confirmed to be effective, some inhibitors failed to kill cancer cells, complicating MTH1 as a viable target for cancer eradication. In this review, we summarize the current status of developing MTH1 inhibitors as drug candidates, classify the MTH1 inhibitors based on their structures, and offer our perspectives toward the therapeutic potential against cancer through the targeting of MTH1.
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Key Words
- AI, 7-azaindole
- AID, 7-azaindazole
- AP, aminopyrimidine
- AQ, amidoquinolines
- AZ, 2-aminoquinazoline
- Anticancer
- CETSA, cellular thermal shift assay
- CR, cyclometalated ruthenium
- DDR, DNA damage response
- DNA repair
- F, fragment
- FP, farnesyl phenolic
- IC50, half-maximal inhibitory concentrations
- Inhibitor
- MMR, DNA mismatch repair
- MTH1
- MTH1, human MutT homolog 1
- NSCLC, non-small cell lung cancer
- Oxidized nucleotide
- P, purinone
- PDT, photodynamic therapy
- PM, purinone macrocycle
- Pu, purine
- ROS, reactive oxygen species
- TLR7, Toll-like receptor 7
- TPP, thermal proteome profiling
- TS-FITGE, thermal stability shift-based fluorescence difference in two-dimensional gel electrophoresis
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Affiliation(s)
- Yizhen Yin
- Institute of Pharmaceutical Science and Technology, Zhejiang University of Technology, Hangzhou 310014, China
| | - Fener Chen
- Institute of Pharmaceutical Science and Technology, Zhejiang University of Technology, Hangzhou 310014, China
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Department of Chemistry, Fudan University, Shanghai 200433, China
- Shanghai Engineering Center of Industrial Asymmetric Catalysis for Chiral Drugs, Shanghai 200433, China
- Corresponding author. Tel./fax: +86 21 65643811.
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10
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Bhavya B, Easwer HV, Vilanilam GC, Anand CR, Sreelakshmi K, Urulangodi M, Rajalakshmi P, Neena I, Padmakrishnan CJ, Menon GR, Krishnakumar K, Deepti AN, Gopala S. MutT Homolog1 has multifaceted role in glioma and is under the apparent orchestration by Hypoxia Inducible factor1 alpha. Life Sci 2020; 264:118673. [PMID: 33130078 DOI: 10.1016/j.lfs.2020.118673] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 10/15/2020] [Accepted: 10/22/2020] [Indexed: 11/17/2022]
Abstract
AIMS The study focused on the expression and role of a recent potential cancer therapeutic target protein, MutT Homolog1 (MTH1). MTH1 gets activated in an increased reactive oxygen species (ROS) environment and removes the oxidized nucleotides from the cell. The study aimed to check the role of MTH1 in DNA damage and apoptosis, migration and angiogenesis and also to examine its regulation in glioma. MAIN METHODS The experiments were carried out in human glioma tissue samples and brain tissues of epilepsy patients (non-tumor control). We used two human glioblastomas cell lines, U87MG and U251MG cells. In order to study the role of MTH1 in glioma and to analyze the relation of MTH1 with Hif1α, we have used MTH1 siRNA and Hif1α siRNA respectively. KEY FINDINGS We found an increased expression of MTH1 in glioma tissues compared to the non-tumor brain tissues. Correlation analysis revealed that those samples showing reduced expression of MTH1 also had high levels of DNA damage and apoptotic markers, while diminished expression of angiogenesis regulators and levels of migration. MTH1 knockdown in vitro by siRNA in tumor cell lines corroborates the above observation. This justifies the emergence of MTH1 inhibitors as potential first-in-class drugs. Mechanistically, our observations suggest that Hif1α may modulate MTH1 expression. SIGNIFICANCE We found elevated MTH1 expression in glioma irrespective of their grades, while its inhibition affects multiple tumor progression pathways, and that targeting Hif1α could simulate the same.
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Affiliation(s)
- Bharathan Bhavya
- Department of Biochemistry, Sree Chitra Tirunal Institute for Medical Sciences & Technology, Thiruvananthapuram 695011, Kerala, India
| | - H V Easwer
- Department of Neurosurgery, Sree Chitra Tirunal Institute for Medical Sciences & Technology, Thiruvananthapuram 695011, Kerala, India
| | - G C Vilanilam
- Department of Neurosurgery, Sree Chitra Tirunal Institute for Medical Sciences & Technology, Thiruvananthapuram 695011, Kerala, India
| | - C R Anand
- Department of Biochemistry, Sree Chitra Tirunal Institute for Medical Sciences & Technology, Thiruvananthapuram 695011, Kerala, India
| | - K Sreelakshmi
- Department of Biochemistry, Sree Chitra Tirunal Institute for Medical Sciences & Technology, Thiruvananthapuram 695011, Kerala, India
| | - Madhusoodanan Urulangodi
- Department of Biochemistry, Sree Chitra Tirunal Institute for Medical Sciences & Technology, Thiruvananthapuram 695011, Kerala, India
| | - P Rajalakshmi
- Department of Pathology, Sree Chitra Tirunal Institute for Medical Sciences & Technology, Thiruvananthapuram 695011, Kerala, India
| | - Issac Neena
- Department of Pathology, Sree Chitra Tirunal Institute for Medical Sciences & Technology, Thiruvananthapuram 695011, Kerala, India
| | - C J Padmakrishnan
- Department of Biochemistry, Sree Chitra Tirunal Institute for Medical Sciences & Technology, Thiruvananthapuram 695011, Kerala, India
| | - Girish R Menon
- Department of Neurosurgery, Sree Chitra Tirunal Institute for Medical Sciences & Technology, Thiruvananthapuram 695011, Kerala, India
| | - K Krishnakumar
- Department of Neurosurgery, Sree Chitra Tirunal Institute for Medical Sciences & Technology, Thiruvananthapuram 695011, Kerala, India
| | - A N Deepti
- Department of Pathology, Sree Chitra Tirunal Institute for Medical Sciences & Technology, Thiruvananthapuram 695011, Kerala, India
| | - Srinivas Gopala
- Department of Biochemistry, Sree Chitra Tirunal Institute for Medical Sciences & Technology, Thiruvananthapuram 695011, Kerala, India.
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11
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Binetti M, Lauro A, Vaccari S, Cervellera M, Tonini V. Proteogenomic biomarkers in colorectal cancers: clinical applications. Expert Rev Proteomics 2020; 17:355-363. [PMID: 32536221 DOI: 10.1080/14789450.2020.1782202] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
INTRODUCTION Colorectal cancer (CRC) is one of the leading cancers in terms of incidence and mortality, rate requiring a multidisciplinary approach. The discovery of specific CRC biomarkers has caused a paradigm shift in its clinical management. AREAS COVERED The aim is to illustrate the possible clinical applications of CRC biomarkers through an updated literature review (from 2015 to 2020) based on the PubMed database. A relationship between cancer localization and genetic profile has been identified. Nowadays, the tumor markers are largely used to select patients that could really benefit from a specific type of adjuvant therapy, in order to optimize treatment programs, especially in metastatic patients. This review highlights both CRC biomarkers' advantages and critical issues. EXPERT OPINION New biomarker discoveries allow to set noninvasive tests that could increase patient's compliance with therapy. They also permit a cost-effective early diagnosis, as well as patient-tailored treatments, improving the overall survival. The CRC biomarkers could also have a prognostic value, and usually, they are included in follow-up programs. However, despite the continuous progression of new technologies, their clinical validation is still debated. In this context, additional clinical studies are still necessary to identify, among potential markers, the most effective ones.
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Affiliation(s)
| | - Augusto Lauro
- Emergency Surgery Unit, St. Orsola University Hospital , Bologna, Italy
| | - Samuele Vaccari
- Department of Surgical Sciences, Umberto I University Hospital , Rome, Italy
| | | | - Valeria Tonini
- Emergency Surgery Unit, St. Orsola University Hospital , Bologna, Italy
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12
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Magkouta SF, Pappas AG, Vaitsi PC, Agioutantis PC, Pateras IS, Moschos CA, Iliopoulou MP, Kosti CN, Loutrari HV, Gorgoulis VG, Kalomenidis IT. MTH1 favors mesothelioma progression and mediates paracrine rescue of bystander endothelium from oxidative damage. JCI Insight 2020; 5:134885. [PMID: 32554927 DOI: 10.1172/jci.insight.134885] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Accepted: 05/20/2020] [Indexed: 01/08/2023] Open
Abstract
Oxidative stress and inadequate redox homeostasis is crucial for tumor initiation and progression. MTH1 (NUDT1) enzyme prevents incorporation of oxidized dNTPs by sanitizing the deoxynucleoside triphosphate (dNTP) pool and is therefore vital for the survival of tumor cells. MTH1 inhibition has been found to inhibit the growth of several experimental tumors, but its role in mesothelioma progression remained elusive. Moreover, although MTH1 is nonessential to normal cells, its role in survival of host cells in tumor milieu, especially tumor endothelium, is unclear. We validated a clinically relevant MTH1 inhibitor (Karonudib) in mesothelioma treatment using human xenografts and syngeneic murine models. We show that MTH1 inhibition impedes mesothelioma progression and that inherent tumoral MTH1 levels are associated with a tumor's response. We also identified tumor endothelial cells as selective targets of Karonudib and propose a model of intercellular signaling among tumor cells and bystander tumor endothelium. We finally determined the major biological processes associated with elevated MTH1 gene expression in human mesotheliomas.
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Affiliation(s)
- Sophia F Magkouta
- "Marianthi Simou Laboratory", 1st Department of Critical Care and Pulmonary Medicine, National and Kapodistrian University of Athens, School of Medicine, Evangelismos Hospital, Athens, Greece
| | - Apostolos G Pappas
- "Marianthi Simou Laboratory", 1st Department of Critical Care and Pulmonary Medicine, National and Kapodistrian University of Athens, School of Medicine, Evangelismos Hospital, Athens, Greece
| | - Photene C Vaitsi
- "Marianthi Simou Laboratory", 1st Department of Critical Care and Pulmonary Medicine, National and Kapodistrian University of Athens, School of Medicine, Evangelismos Hospital, Athens, Greece
| | - Panagiotis C Agioutantis
- "Marianthi Simou Laboratory", 1st Department of Critical Care and Pulmonary Medicine, National and Kapodistrian University of Athens, School of Medicine, Evangelismos Hospital, Athens, Greece
| | - Ioannis S Pateras
- Molecular Carcinogenesis Group, Department of Histology and Embryology, School of Medicine, National Kapodistrian University of Athens, Athens, Greece
| | - Charalampos A Moschos
- "Marianthi Simou Laboratory", 1st Department of Critical Care and Pulmonary Medicine, National and Kapodistrian University of Athens, School of Medicine, Evangelismos Hospital, Athens, Greece
| | - Marianthi P Iliopoulou
- "Marianthi Simou Laboratory", 1st Department of Critical Care and Pulmonary Medicine, National and Kapodistrian University of Athens, School of Medicine, Evangelismos Hospital, Athens, Greece
| | - Chrysavgi N Kosti
- "Marianthi Simou Laboratory", 1st Department of Critical Care and Pulmonary Medicine, National and Kapodistrian University of Athens, School of Medicine, Evangelismos Hospital, Athens, Greece
| | - Heleni V Loutrari
- "Marianthi Simou Laboratory", 1st Department of Critical Care and Pulmonary Medicine, National and Kapodistrian University of Athens, School of Medicine, Evangelismos Hospital, Athens, Greece
| | - Vassilis G Gorgoulis
- Molecular Carcinogenesis Group, Department of Histology and Embryology, School of Medicine, National Kapodistrian University of Athens, Athens, Greece.,Biomedical Research Foundation of the Academy of Athens, Athens, Greece.,Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, United Kingdom
| | - Ioannis T Kalomenidis
- "Marianthi Simou Laboratory", 1st Department of Critical Care and Pulmonary Medicine, National and Kapodistrian University of Athens, School of Medicine, Evangelismos Hospital, Athens, Greece
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13
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Mechetin GV, Endutkin AV, Diatlova EA, Zharkov DO. Inhibitors of DNA Glycosylases as Prospective Drugs. Int J Mol Sci 2020; 21:ijms21093118. [PMID: 32354123 PMCID: PMC7247160 DOI: 10.3390/ijms21093118] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 04/24/2020] [Accepted: 04/27/2020] [Indexed: 12/22/2022] Open
Abstract
DNA glycosylases are enzymes that initiate the base excision repair pathway, a major biochemical process that protects the genomes of all living organisms from intrinsically and environmentally inflicted damage. Recently, base excision repair inhibition proved to be a viable strategy for the therapy of tumors that have lost alternative repair pathways, such as BRCA-deficient cancers sensitive to poly(ADP-ribose)polymerase inhibition. However, drugs targeting DNA glycosylases are still in development and so far have not advanced to clinical trials. In this review, we cover the attempts to validate DNA glycosylases as suitable targets for inhibition in the pharmacological treatment of cancer, neurodegenerative diseases, chronic inflammation, bacterial and viral infections. We discuss the glycosylase inhibitors described so far and survey the advances in the assays for DNA glycosylase reactions that may be used to screen pharmacological libraries for new active compounds.
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Affiliation(s)
- Grigory V. Mechetin
- SB RAS Institute of Chemical Biology and Fundamental Medicine, 8 Lavrentieva Ave., 630090 Novosibirsk, Russia; (G.V.M.); (A.V.E.); (E.A.D.)
| | - Anton V. Endutkin
- SB RAS Institute of Chemical Biology and Fundamental Medicine, 8 Lavrentieva Ave., 630090 Novosibirsk, Russia; (G.V.M.); (A.V.E.); (E.A.D.)
| | - Evgeniia A. Diatlova
- SB RAS Institute of Chemical Biology and Fundamental Medicine, 8 Lavrentieva Ave., 630090 Novosibirsk, Russia; (G.V.M.); (A.V.E.); (E.A.D.)
| | - Dmitry O. Zharkov
- SB RAS Institute of Chemical Biology and Fundamental Medicine, 8 Lavrentieva Ave., 630090 Novosibirsk, Russia; (G.V.M.); (A.V.E.); (E.A.D.)
- Novosibirsk State University, 2 Pirogova St., 630090 Novosibirsk, Russia
- Correspondence: ; Tel.: +7-383-363-5187
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14
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Ou Q, Ma N, Yu Z, Wang R, Hou Y, Wang Z, Chen F, Li W, Bi J, Ma J, Zhang L, Su Q, Huang X. Nudix hydrolase 1 is a prognostic biomarker in hepatocellular carcinoma. Aging (Albany NY) 2020; 12:7363-7379. [PMID: 32341205 PMCID: PMC7202498 DOI: 10.18632/aging.103083] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Accepted: 04/07/2020] [Indexed: 12/11/2022]
Abstract
We investigated the prognostic significance of Nudix hydrolase 1 (NUDT1) in hepatocellular carcinoma (HCC). NUDT1 mRNA and protein levels were significantly higher in HCC tissues than normal liver tissues. The level of NUDT1 expression correlated with tumor grade, stage, size, differentiation, degree of vascular invasion, overall survival (OS), and disease-free survival (DFS) in HCC patients. Multivariate analysis showed that NUDT1 expression was an independent prognostic factor for OS and DFS in HCC patients. We constructed a prognostic nomogram with NUDT1 expression, AFP levels, vascular invasion, Child-Pugh classification, age, sex, AJCC staging, and tumor differentiation as variables. This nomogram was highly accurate in predicting the 5-year OS of HCC patients (c-index= 0.709; AUC= 0.740). NUDT1 silencing in HCC cells significantly reduced their survival, colony formation, migration, and invasiveness. Gene set enrichment analysis showed that biological pathways related to cell cycle, fatty acid metabolism, bile acid and bile salt metabolism, and PLK1 signaling were associated with NUDT1, as were the gene ontology terms "DNA binding transcription activator activity," "RNA polymerase II," "nuclear division," and "transmembrane transporter activity." Our study thus demonstrates that NUDT1 is a prognostic biomarker with therapeutic potential in HCC patients.
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Affiliation(s)
- Qifeng Ou
- Laboratory of General Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080, China
| | - Ning Ma
- Department of Gastrointestinal Surgery and Hernia Center, Guangdong Institute of Gastroenterology, Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Supported by National Key Clinical Discipline, The Sixth Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510000, China
| | - Zheng Yu
- Laboratory of General Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080, China
| | - Rongchang Wang
- Department of Gastrointestinal Surgery, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou 510120, China
| | - Yucheng Hou
- Organ Transplant Centre, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080, China
| | - Ziming Wang
- Department of Pancreatobiliary Surgery, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, China
| | - Fan Chen
- Department of Orthopaedic Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080, China
| | - Wen Li
- Laboratory of General Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080, China
| | - Jiong Bi
- Laboratory of General Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080, China
| | - Jieyi Ma
- Laboratory of General Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080, China
| | - Longjuan Zhang
- Laboratory of General Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080, China
| | - Qiao Su
- Animal Center, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080, China
| | - Xiaohui Huang
- Laboratory of General Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080, China
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15
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Moukengue B, Brown HK, Charrier C, Battaglia S, Baud'huin M, Quillard T, Pham TM, Pateras IS, Gorgoulis VG, Helleday T, Heymann D, Berglund UW, Ory B, Lamoureux F. TH1579, MTH1 inhibitor, delays tumour growth and inhibits metastases development in osteosarcoma model. EBioMedicine 2020; 53:102704. [PMID: 32151797 PMCID: PMC7063190 DOI: 10.1016/j.ebiom.2020.102704] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Revised: 01/22/2020] [Accepted: 02/20/2020] [Indexed: 02/06/2023] Open
Abstract
Background Osteosarcoma (OS) is the most common primary malignant bone tumour. Unfortunately, no new treatments are approved and over the last 30 years the survival rate remains only 30% at 5 years for poor responders justifying an urgent need of new therapies. The Mutt homolog 1 (MTH1) enzyme prevents incorporation of oxidized nucleotides into DNA and recently developed MTH1 inhibitors may offer therapeutic potential as MTH1 is overexpressed in various cancers. Methods The aim of this study was to evaluate the therapeutic benefits of targeting MTH1 with two chemical inhibitors, TH588 and TH1579 on human osteosarcoma cells. Preclinical efficacy of TH1579 was assessed in human osteosarcoma xenograft model on tumour growth and development of pulmonary metastases. Findings MTH1 is overexpressed in OS patients and tumour cell lines, compared to mesenchymal stem cells. In vitro, chemical inhibition of MTH1 by TH588 and TH1579 decreases OS cells viability, impairs their cell cycle and increases apoptosis in OS cells. TH1579 was confirmed to bind MTH1 by CETSA in OS model. Moreover, 90 mg/kg of TH1579 reduces in vivo tumour growth by 80.5% compared to non-treated group at day 48. This result was associated with the increase in 8-oxo-dG integration into tumour cells DNA and the increase of apoptosis. Additionally, TH1579 also reduces the number of pulmonary metastases. Interpretation All these results strongly provide a pre-clinical proof-of-principle that TH1579 could be a therapeutic option for patients with osteosarcoma. Funding This study was supported by La Ligue Contre le Cancer, la SFCE and Enfants Cancers Santé.
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Affiliation(s)
- Brice Moukengue
- Université de Nantes, INSERM, U1238, Sarcomes osseux et remodelage des tissus calcifiés, Team 3, Epistress, Rue Gaston Veil, 44035 Nantes cedex, France
| | - Hannah K Brown
- Weston Park Cancer Centre, Department of Oncology and Metabolism, University of Sheffield, Sheffield S10 2RX, UK; University of Sheffield, INSERM, European Associated Laboratory "Sarcoma Research Unit", Medical School, S10 2RX, Sheffield, UK
| | - Céline Charrier
- Université de Nantes, INSERM, U1238, Sarcomes osseux et remodelage des tissus calcifiés, Team 3, Epistress, Rue Gaston Veil, 44035 Nantes cedex, France
| | - Séverine Battaglia
- Université de Nantes, INSERM, U1238, Sarcomes osseux et remodelage des tissus calcifiés, Team 3, Epistress, Rue Gaston Veil, 44035 Nantes cedex, France
| | - Marc Baud'huin
- Université de Nantes, INSERM, U1238, Sarcomes osseux et remodelage des tissus calcifiés, Team 3, Epistress, Rue Gaston Veil, 44035 Nantes cedex, France; CHU de Nantes, Nantes, France
| | - Thibaut Quillard
- Université de Nantes, INSERM, U1238, Sarcomes osseux et remodelage des tissus calcifiés, Team 3, Epistress, Rue Gaston Veil, 44035 Nantes cedex, France
| | - Therese M Pham
- Science for Life Laboratory, Department of Oncology-Pathology, Karolinska Institutet, S-171 76 Stockholm, Sweden
| | - Ioannis S Pateras
- Department of Histology and Embryology, School of Medicine, National Kapodistrian University of Athens, Athens, Greece
| | - Vassilis G Gorgoulis
- Department of Histology and Embryology, School of Medicine, National Kapodistrian University of Athens, Athens, Greece; Biomedical Research Foundation of the Academy of Athens, Athens, Greece; Faculty of Biology, Medicine and Health Manchester Cancer Research Centre, Manchester Academic Health Centre, The University of Manchester, Manchester, UK
| | - Thomas Helleday
- Weston Park Cancer Centre, Department of Oncology and Metabolism, University of Sheffield, Sheffield S10 2RX, UK; Science for Life Laboratory, Department of Oncology-Pathology, Karolinska Institutet, S-171 76 Stockholm, Sweden
| | - Dominique Heymann
- Weston Park Cancer Centre, Department of Oncology and Metabolism, University of Sheffield, Sheffield S10 2RX, UK; University of Sheffield, INSERM, European Associated Laboratory "Sarcoma Research Unit", Medical School, S10 2RX, Sheffield, UK; INSERM, U1232, CRCINA, Institut de Cancérologie de l'Ouest, University of Nantes, Université d'Angers, Blvd Jacques Monod, 44805 Saint-Herblain, France
| | - Ulrika Warpman Berglund
- Science for Life Laboratory, Department of Oncology-Pathology, Karolinska Institutet, S-171 76 Stockholm, Sweden
| | - Benjamin Ory
- Université de Nantes, INSERM, U1238, Sarcomes osseux et remodelage des tissus calcifiés, Team 3, Epistress, Rue Gaston Veil, 44035 Nantes cedex, France
| | - Francois Lamoureux
- Université de Nantes, INSERM, U1238, Sarcomes osseux et remodelage des tissus calcifiés, Team 3, Epistress, Rue Gaston Veil, 44035 Nantes cedex, France.
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16
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Samaranayake GJ, Troccoli CI, Zhang L, Huynh M, Jayaraj CJ, Ji D, McPherson L, Onishi Y, Nguyen DM, Robbins DJ, Karbaschi M, Cooke MS, Barrientos A, Kool ET, Rai P. The Existence of MTH1-independent 8-oxodGTPase Activity in Cancer Cells as a Compensatory Mechanism against On-target Effects of MTH1 Inhibitors. Mol Cancer Ther 2019; 19:432-446. [PMID: 31744893 DOI: 10.1158/1535-7163.mct-19-0437] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Revised: 09/20/2019] [Accepted: 11/12/2019] [Indexed: 01/28/2023]
Abstract
Investigations into the human 8-oxodGTPase, MutT Homolog 1 (MTH1), have risen sharply since the first-in-class MTH1 inhibitors were reported to be highly tumoricidal. However, MTH1 as a cancer therapeutic target is currently controversial because subsequently developed inhibitors did not exhibit similar cytotoxic effects. Here, we provide the first direct evidence for MTH1-independent 8-oxodGTPase function in human cancer cells and human tumors, using a novel ATP-releasing guanine-oxidized (ARGO) chemical probe. Our studies show that this functionally redundant 8-oxodGTPase activity is not decreased by five different published MTH1-targeting small molecules or by MTH1 depletion. Significantly, while only the two first-in-class inhibitors, TH588 and TH287, reduced cancer cell viability, all five inhibitors evaluated in our studies decreased 8-oxodGTPase activity to a similar extent. Thus, the reported efficacy of the first-in-class MTH1 inhibitors does not arise from their inhibition of MTH1-specific 8-oxodGTPase activity. Comparison of DNA strand breaks, genomic 8-oxoguanine incorporation, or alterations in cellular oxidative state by TH287 versus the noncytotoxic inhibitor, IACS-4759, contradict that the cytotoxicity of the former results solely from increased levels of oxidatively damaged genomic DNA. Thus, our findings indicate that mechanisms unrelated to oxidative stress or DNA damage likely underlie the reported efficacy of the first-in-class inhibitors. Our study suggests that MTH1 functional redundancy, existing to different extents in all cancer lines and human tumors evaluated in our study, is a thus far undefined factor which is likely to be critical in understanding the importance of MTH1 and its clinical targeting in cancer.
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Affiliation(s)
- Govindi J Samaranayake
- Department of Medicine/Division of Medical Oncology, University of Miami Miller School of Medicine, Miami, Florida
- Sheila and David Fuente Graduate Program in Cancer Biology, University of Miami Miller School of Medicine, Miami, Florida
| | - Clara I Troccoli
- Department of Medicine/Division of Medical Oncology, University of Miami Miller School of Medicine, Miami, Florida
- Sheila and David Fuente Graduate Program in Cancer Biology, University of Miami Miller School of Medicine, Miami, Florida
| | - Ling Zhang
- Department of Medicine/Division of Medical Oncology, University of Miami Miller School of Medicine, Miami, Florida
| | - Mai Huynh
- University of Miami, Coral Gables, Florida
| | | | - Debin Ji
- Department of Chemistry, Stanford University, Stanford, California
| | - Lisa McPherson
- Department of Medicine/Oncology, Stanford University, Stanford, California
| | - Yoshiyuki Onishi
- Department of Chemistry, Stanford University, Stanford, California
| | - Dao M Nguyen
- Sylvester Comprehensive Cancer Center, Miami, Florida
- Department of Surgery, University of Miami Miller School of Medicine, Miami, Florida
| | - David J Robbins
- Sylvester Comprehensive Cancer Center, Miami, Florida
- Department of Surgery, University of Miami Miller School of Medicine, Miami, Florida
| | - Mahsa Karbaschi
- Department of Human and Molecular Genetics, Florida International University, Miami, Florida
- Oxidative Stress Group, Department of Environmental Health Sciences, Florida International University, Miami, Florida
| | - Marcus S Cooke
- Oxidative Stress Group, Department of Environmental Health Sciences, Florida International University, Miami, Florida
| | - Antonio Barrientos
- Department of Neurology, University of Miami Miller School of Medicine, Miami, Florida
| | - Eric T Kool
- Department of Chemistry, Stanford University, Stanford, California
| | - Priyamvada Rai
- Department of Medicine/Division of Medical Oncology, University of Miami Miller School of Medicine, Miami, Florida.
- Sylvester Comprehensive Cancer Center, Miami, Florida
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17
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The MTH1 inhibitor TH588 is a microtubule-modulating agent that eliminates cancer cells by activating the mitotic surveillance pathway. Sci Rep 2019; 9:14667. [PMID: 31604991 PMCID: PMC6789014 DOI: 10.1038/s41598-019-51205-w] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Accepted: 09/26/2019] [Indexed: 01/10/2023] Open
Abstract
The mut-T homolog-1 (MTH1) inhibitor TH588 has shown promise in preclinical cancer studies but its targeting specificity has been questioned. Alternative mechanisms for the anti-cancer effects of TH588 have been suggested but the question remains unresolved. Here, we performed an unbiased CRISPR screen on human lung cancer cells to identify potential mechanisms behind the cytotoxic effect of TH588. The screen identified pathways and complexes involved in mitotic spindle regulation. Using immunofluorescence and live cell imaging, we showed that TH588 rapidly reduced microtubule plus-end mobility, disrupted mitotic spindles, and prolonged mitosis in a concentration-dependent but MTH1-independent manner. These effects activated a USP28-p53 pathway – the mitotic surveillance pathway – that blocked cell cycle reentry after prolonged mitosis; USP28 acted upstream of p53 to arrest TH588-treated cells in the G1-phase of the cell cycle. We conclude that TH588 is a microtubule-modulating agent that activates the mitotic surveillance pathway and thus prevents cancer cells from re-entering the cell cycle.
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18
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Li F, Wu Y, Chen L, Hu L, Zhu F, He Q. High iodine induces DNA damage in autoimmune thyroiditis partially by inhibiting the DNA repair protein MTH1. Cell Immunol 2019; 344:103948. [PMID: 31311621 DOI: 10.1016/j.cellimm.2019.103948] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 06/11/2019] [Accepted: 07/01/2019] [Indexed: 01/06/2023]
Abstract
This study aims to investigate the level of DNA damage in high iodine (HI)-induced autoimmune thyroiditis (AIT), and to explore the role of DNA repair protein MutT homolog-1 (MTH1) in this process. The levels of pro-inflammatory cytokines tumor necrosis factor (TNF)-α, interleukin (IL)-6, and IL-8 were measured using qRT-PCR and ELISA. The apoptosis was evaluated using TUNEL staining. The pathological changes of thyroid tissues were evaluated using hematoxylin and eosin (HE) staining. The DNA damage was assessed by determining the expression of 8-hydroxy-2'deoxyguanosine (8-OHdG; an indicator of oxidative DNA damage) and performing the Comet assay. Our results showed that both the HI-treated NOD.H-2h4 mice (experimental AIT mice) and the HI-treated mouse thyroid follicular epithelial cells showed enhanced inflammation, apoptosis, and DNA damage level, accompanied by decreased MTH1 expression. Importantly, overexpression of MTH1 effectively abrogated the HI-induced enhancement of inflammation, apoptosis, and DNA damage in mouse thyroid follicular epithelial cells. In conclusion, HI treatment induces DNA damage in AIT, at least in part, by inhibiting the DNA repair protein MTH1.
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Affiliation(s)
- Fuqiang Li
- Thyroid Disease Diagnosis and Treatment Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China.
| | - Yijun Wu
- Thyroid Disease Diagnosis and Treatment Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Liang Chen
- Thyroid Disease Diagnosis and Treatment Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Liang Hu
- Thyroid Disease Diagnosis and Treatment Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Feng Zhu
- Thyroid Disease Diagnosis and Treatment Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Qiwen He
- Thyroid Disease Diagnosis and Treatment Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
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19
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Rai P, Sobol RW. Mechanisms of MTH1 inhibition-induced DNA strand breaks: The slippery slope from the oxidized nucleotide pool to genotoxic damage. DNA Repair (Amst) 2019; 77:18-26. [PMID: 30852368 DOI: 10.1016/j.dnarep.2019.03.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2019] [Revised: 02/28/2019] [Accepted: 03/01/2019] [Indexed: 12/14/2022]
Abstract
Unlike normal tissues, tumor cells possess a propensity for genomic instability, resulting from elevated oxidant levels produced by oncogenic signaling and aberrant cellular metabolism. Thus, targeting mechanisms that protect cancer cells from the tumor-inhibitory consequences of their redox imbalance and spontaneous DNA-damaging events is expected to have broad-spectrum efficacy and a high therapeutic index. One critical mechanism for tumor cell protection from oxidant stress is the hydrolysis of oxidized nucleotides. Human MutT homolog 1 (MTH1), the mammalian nudix (nucleoside diphosphate X) pyrophosphatase (NUDT1), protects tumor cells from oxidative stress-induced genomic DNA damage by cleansing the nucleotide pool of oxidized purine nucleotides. Depletion or pharmacologic inhibition of MTH1 results in genomic DNA strand breaks in many cancer cells. However, the mechanisms underlying how oxidized nucleotides, thought mainly to be mutagenic rather than genotoxic, induce DNA strand breaks are largely unknown. Given the recent therapeutic interest in targeting MTH1, a better understanding of such mechanisms is crucial to its successful translation into the clinic and in identifying the molecular contexts under which its inhibition is likely to be beneficial. Here we provide a comprehensive perspective on MTH1 function and its importance in protecting genome integrity, in the context of tumor-associated oxidative stress and the mechanisms that likely lead to irreparable DNA strand breaks as a result of MTH1 inhibition.
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Affiliation(s)
- Priyamvada Rai
- Department of Medicine/Division of Medical Oncology, University of Miami Miller School of Medicine, Miami, FL, 33136, United States; Sylvester Comprehensive Cancer Center, Miami, FL, 33136, United States.
| | - Robert W Sobol
- Mitchell Cancer Institute, University of South Alabama, 1660 Springhill Avenue, Mobile, AL, 36604, United States.
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