1
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Olson BM, Chaudagar K, Bao R, Saha SS, Hong C, Li M, Rameshbabu S, Chen R, Thomas A, Patnaik A. BET Inhibition Sensitizes Immunologically Cold Rb-Deficient Prostate Cancer to Immune Checkpoint Blockade. Mol Cancer Ther 2023; 22:751-764. [PMID: 37014264 PMCID: PMC10239341 DOI: 10.1158/1535-7163.mct-22-0369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 01/09/2023] [Accepted: 03/29/2023] [Indexed: 04/05/2023]
Abstract
Non-T-cell-inflamed immunologically "cold" tumor microenvironments (TME) are associated with poor responsiveness to immune checkpoint blockade (ICB) and can be sculpted by tumor cell genomics. Here, we evaluated how retinoblastoma (Rb) tumor-suppressor loss-of-function (LOF), one of the most frequent alterations in human cancer and associated with lineage plasticity, poor prognosis, and therapeutic outcomes, alters the TME, and whether therapeutic strategies targeting the molecular consequences of Rb loss enhance ICB efficacy. We performed bioinformatics analysis to elucidate the impact of endogenous Rb LOF on the immune TME in human primary and metastatic tumors. Next, we used isogenic murine models of Rb-deficient prostate cancer for in vitro and in vivo mechanistic studies to examine how Rb loss and bromodomain and extraterminal (BET) domain inhibition (BETi) reprograms the immune landscape, and evaluated in vivo therapeutic efficacy of BETi, singly and in combination with ICB and androgen deprivation therapy. Rb loss was enriched in non-T-cell-inflamed tumors, and Rb-deficient murine tumors demonstrated decreased immune infiltration in vivo. The BETi JQ1 increased immune infiltration into the TME through enhanced tumor cell STING/NF-κB activation and type I IFN signaling within tumor cells, resulting in differential macrophage and T-cell-mediated tumor growth inhibition and sensitization of Rb-deficient prostate cancer to ICB. BETi can reprogram the immunologically cold Rb-deficient TME via STING/NF-κB/IFN signaling to sensitize Rb-deficient prostate cancer to ICB. These data provide the mechanistic rationale to test combinations of BETi and ICB in clinical trials of Rb-deficient prostate cancer.
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Affiliation(s)
- Brian M. Olson
- Department of Hematology and Medical Oncology; Emory University, Atlanta, GA
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, IL
| | - Kiranj Chaudagar
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, IL
| | - Riyue Bao
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, IL
- Center for Research Informatics, University of Chicago, Chicago, IL
- Cancer Bioinformatics Services, University of Pittsburgh Medical Center, Pittsburgh, PA
| | - Sweta Sharma Saha
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, IL
- Department of Pediatrics, University of Chicago, Chicago, IL; Translational and Clinical Research Institute, Newcastle University Centre for Cancer, Newcastle upon Tyne, United Kingdom
| | - Christina Hong
- Department of Hematology and Medical Oncology; Emory University, Atlanta, GA
| | - Marguerite Li
- Department of Hematology and Medical Oncology; Emory University, Atlanta, GA
| | - Srikrishnan Rameshbabu
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, IL
| | - Raymond Chen
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, IL
| | - Alison Thomas
- Department of Hematology and Medical Oncology; Emory University, Atlanta, GA
| | - Akash Patnaik
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, IL
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2
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Feng L, Ding R, Qu X, Li Y, Shen T, Wang L, Li R, Zhang J, Ru Y, Bu X, Wang Y, Li M, Song W, Shen L, Zhang P. BCR-ABL triggers a glucose-dependent survival program during leukemogenesis through the suppression of TXNIP. Cell Death Dis 2023; 14:287. [PMID: 37095099 PMCID: PMC10125982 DOI: 10.1038/s41419-023-05811-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 04/04/2023] [Accepted: 04/13/2023] [Indexed: 04/26/2023]
Abstract
Imatinib is highly effective in the treatment of chronic myelogenous leukemia (CML), but the primary and acquired imatinib resistance remains the big hurdle. Molecular mechanisms for CML resistance to tyrosine kinase inhibitors, beyond point mutations in BCR-ABL kinase domain, still need to be addressed. Here, we demonstrated that thioredoxin-interacting protein (TXNIP) is a novel BCR-ABL target gene. Suppression of TXNIP was responsible for BCR-ABL triggered glucose metabolic reprogramming and mitochondrial homeostasis. Mechanistically, Miz-1/P300 complex transactivates TXNIP through the recognition of TXNIP core promoter region, responding to the c-Myc suppression by either imatinib or BCR-ABL knockdown. TXNIP restoration sensitizes CML cells to imatinib treatment and compromises imatinib resistant CML cell survival, predominantly through the blockage of both glycolysis and glucose oxidation which results in the mitochondrial dysfunction and ATP production. In particular, TXNIP suppresses expressions of the key glycolytic enzyme, hexokinase 2 (HK2), and lactate dehydrogenase A (LDHA), potentially through Fbw7-dependent c-Myc degradation. In accordance, BCR-ABL suppression of TXNIP provided a novel survival pathway for the transformation of mouse bone marrow cells. Knockout of TXNIP accelerated BCR-ABL transformation, whereas TXNIP overexpression suppressed this transformation. Combination of drug inducing TXNIP expression with imatinib synergistically kills CML cells from patients and further extends the survival of CML mice. Thus, the activation of TXNIP represents an effective strategy for CML treatment to overcome resistance.
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Affiliation(s)
- Lin Feng
- Key Laboratory of Microecology-immune Regulatory Network and Related Diseases, School of Basic Medicine, Jiamusi University, Jiamusi, Heilongjiang, China
- Shaanxi University of Chinese Medicine, Xianyang, China
| | - Ruxin Ding
- The State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, China
| | - Xuan Qu
- Shaanxi University of Chinese Medicine, Xianyang, China
| | - Yuanchun Li
- Department of Hematology, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Tong Shen
- Department of Digestive Surgery, Xi'an International Medical Center, Xi'an, China
| | - Lei Wang
- Xi'an Beihuan Hospital, Xi'an, China
| | - Ruikai Li
- Department of Gastrointestinal Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Juan Zhang
- The State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, China
- Department of Biochemistry and Molecular Biology, College of Life Sciences, Northwest University, Xi'an, China
| | - Yi Ru
- The State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, China
| | - Xin Bu
- The State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, China
| | - Yang Wang
- Tongchuan People's Hospital, Tongchuan, China
| | - Min Li
- Xi'an Eastern Hospital, Xi'an, China
| | - Wenqi Song
- Jiamusi Maternal and Child Health Care Hospital, Jiamusi, Heilongjiang, China
| | - Liangliang Shen
- The State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, China.
| | - Pengxia Zhang
- Key Laboratory of Microecology-immune Regulatory Network and Related Diseases, School of Basic Medicine, Jiamusi University, Jiamusi, Heilongjiang, China.
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3
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Graziani V, Garcia AR, Alcolado LS, Le Guennec A, Henriksson MA, Conte MR. Metabolic rewiring in MYC-driven medulloblastoma by BET-bromodomain inhibition. Sci Rep 2023; 13:1273. [PMID: 36690651 PMCID: PMC9870962 DOI: 10.1038/s41598-023-27375-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Accepted: 01/02/2023] [Indexed: 01/24/2023] Open
Abstract
Medulloblastoma (MB) is the most common malignant brain tumour in children. High-risk MB patients harbouring MYC amplification or overexpression exhibit a very poor prognosis. Aberrant activation of MYC markedly reprograms cell metabolism to sustain tumorigenesis, yet how metabolism is dysregulated in MYC-driven MB is not well understood. Growing evidence unveiled the potential of BET-bromodomain inhibitors (BETis) as next generation agents for treating MYC-driven MB, but whether and how BETis may affect tumour cell metabolism to exert their anticancer activities remains unknown. In this study, we explore the metabolic features characterising MYC-driven MB and examine how these are altered by BET-bromodomain inhibition. To this end, we employed an NMR-based metabolomics approach applied to the MYC-driven MB D283 and D458 cell lines before and after the treatment with the BETi OTX-015. We found that OTX-015 triggers a metabolic shift in both cell lines resulting in increased levels of myo-inositol, glycerophosphocholine, UDP-N-acetylglucosamine, glycine, serine, pantothenate and phosphocholine. Moreover, we show that OTX-015 alters ascorbate and aldarate metabolism, inositol phosphate metabolism, phosphatidylinositol signalling system, glycerophospholipid metabolism, ether lipid metabolism, aminoacyl-tRNA biosynthesis, and glycine, serine and threonine metabolism pathways in both cell lines. These insights provide a metabolic characterisation of MYC-driven childhood MB cell lines, which could pave the way for the discovery of novel druggable pathways. Importantly, these findings will also contribute to understand the downstream effects of BETis on MYC-driven MB, potentially aiding the development of new therapeutic strategies to combat medulloblastoma.
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Affiliation(s)
- Vittoria Graziani
- Department of Microbiology and Tumor Biology, Biomedicum B7, Karolinska Institutet, 171 65, Stockholm, Sweden
- Barts Cancer Institute, Queen Mary University of London, John Vane Science Building, Charterhouse Square, London, EC1M 6BQ, UK
| | - Aida Rodriguez Garcia
- Department of Microbiology and Tumor Biology, Biomedicum B7, Karolinska Institutet, 171 65, Stockholm, Sweden
| | - Lourdes Sainero Alcolado
- Department of Microbiology and Tumor Biology, Biomedicum B7, Karolinska Institutet, 171 65, Stockholm, Sweden
| | - Adrien Le Guennec
- Centre for Biomolecular Spectroscopy, King's College London, Guy's Campus, London, SE1 1UL, UK
| | - Marie Arsenian Henriksson
- Department of Microbiology and Tumor Biology, Biomedicum B7, Karolinska Institutet, 171 65, Stockholm, Sweden.
| | - Maria R Conte
- Randall Centre for Cell and Molecular Biophysics, King's College London, Guy's Campus, London, SE1 1UL, UK.
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4
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van der Noord VE, van de Water B, Le Dévédec SE. Targeting the Heterogeneous Genomic Landscape in Triple-Negative Breast Cancer through Inhibitors of the Transcriptional Machinery. Cancers (Basel) 2022; 14:4353. [PMID: 36139513 PMCID: PMC9496798 DOI: 10.3390/cancers14184353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 08/28/2022] [Accepted: 08/30/2022] [Indexed: 11/16/2022] Open
Abstract
Triple-negative breast cancer (TNBC) is an aggressive subtype of breast cancer defined by lack of the estrogen, progesterone and human epidermal growth factor receptor 2. Although TNBC tumors contain a wide variety of oncogenic mutations and copy number alterations, the direct targeting of these alterations has failed to substantially improve therapeutic efficacy. This efficacy is strongly limited by interpatient and intratumor heterogeneity, and thereby a lack in uniformity of targetable drivers. Most of these genetic abnormalities eventually drive specific transcriptional programs, which may be a general underlying vulnerability. Currently, there are multiple selective inhibitors, which target the transcriptional machinery through transcriptional cyclin-dependent kinases (CDKs) 7, 8, 9, 12 and 13 and bromodomain extra-terminal motif (BET) proteins, including BRD4. In this review, we discuss how inhibitors of the transcriptional machinery can effectively target genetic abnormalities in TNBC, and how these abnormalities can influence sensitivity to these inhibitors. These inhibitors target the genomic landscape in TNBC by specifically suppressing MYC-driven transcription, inducing further DNA damage, improving anti-cancer immunity, and preventing drug resistance against MAPK and PI3K-targeted therapies. Because the transcriptional machinery enables transcription and propagation of multiple cancer drivers, it may be a promising target for (combination) treatment, especially of heterogeneous malignancies, including TNBC.
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Affiliation(s)
| | | | - Sylvia E. Le Dévédec
- Division of Drug Discovery and Safety, Leiden Academic Centre for Drug Research, Leiden University, 2333 CC Leiden, The Netherlands
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5
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Li J, Pan J, Liu Y, Luo X, Yang C, Xiao W, Li Q, Yang L, Zhang X. 3‑Bromopyruvic acid regulates glucose metabolism by targeting the c‑Myc/TXNIP axis and induces mitochondria‑mediated apoptosis in TNBC cells. Exp Ther Med 2022; 24:520. [PMID: 35837063 PMCID: PMC9257941 DOI: 10.3892/etm.2022.11447] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Accepted: 06/01/2022] [Indexed: 12/03/2022] Open
Abstract
Aerobic glycolysis is commonly observed in tumor cells, including triple-negative breast cancer (TNBC) cells, and the rate of aerobic glycolysis is higher in TNBC cells than in non-TNBC cells. Hexokinase 2 (HK2) is a key enzyme in the glycolytic pathway and a target of the transcription factor c-Myc, which is highly expressed in TNBC and promotes aerobic glycolysis by enhancing HK2 expression. As an inhibitor of HK2, 3-bromopyruvic acid (3-BrPA) exhibits good therapeutic efficacy in intrahepatic and extrahepatic tumors and inhibits the proliferation of human tumor cells with high expression levels of c-Myc in vivo and in vitro. In addition, 3-BrPA combines with photodynamic therapy to inhibit TNBC cell migration. Thioredoxin-interacting protein (TXNIP) competes with c-Myc to reduce glucose consumption in tumor cells to restrain cell proliferation. A comparative analysis was performed in the present study in TNBC (HCC1143) and non-TNBC (MCF-7) cell lines to explore the effect of 3-BrPA on energy metabolism in TNBC cells and to investigate the possible mechanism of action. Cell viability and apoptosis were detected through Cell Counting Kit-8 and flow cytometry assays, respectively. Expression levels of HK2, glucose transporter 1, TXNIP, c-Myc and mitochondria-regulated apoptosis pathway proteins were measured through western blotting. 3-BrPA inhibited cell proliferation, downregulated c-Myc and HK2 expression, and upregulated TXNIP expression in TNBC cells, but it doesn't have the same effect on non-TNBC cells. Furthermore, 3-BrPA induced the typical manifestations of mitochondrial-mediated apoptosis such as decreasing Bcl-2 expression and increasing Bax, Cyt-C and Caspase-3 expression. The present results suggested that 3-BrPA promoted TXNIP protein expression and reduced HK2 expression in TNBC cells by downregulating c-Myc expression, inhibiting glycolysis including suppressing lactate generation, intracellular ATP generation and HK activity, inducing mitochondrial-mediated apoptosis and eventually suppressing TNBC cell proliferation. These findings may reveal a novel therapeutic target for the clinical treatment of TNBC.
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Affiliation(s)
- Jiachen Li
- Department of Gastrointestinal and Gland Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Jianmin Pan
- Department of Gastrointestinal and Gland Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Yang Liu
- Department of Gastrointestinal and Gland Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Xiaohui Luo
- Department of Gastrointestinal and Gland Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Cheng Yang
- Department of Gastrointestinal and Gland Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Wangfa Xiao
- Department of Gastrointestinal and Gland Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Qishang Li
- Department of Gastrointestinal and Gland Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Lihui Yang
- Department of Nursing, Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Xiaodong Zhang
- Department of Gastrointestinal and Gland Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
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6
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Lei JH, Zhang L, Wang Z, Peltier R, Xie Y, Chen G, Lin S, Miao K, Deng CX, Sun H. FGFR2-BRD4 Axis Regulates Transcriptional Networks of Histone 3 Modification and Synergy Between Its Inhibitors and PD-1/PD-L1 in a TNBC Mouse Model. Front Immunol 2022; 13:861221. [PMID: 35547739 PMCID: PMC9084888 DOI: 10.3389/fimmu.2022.861221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 03/21/2022] [Indexed: 11/13/2022] Open
Abstract
Epigenetic reprogramming is an independent mode of gene expression that often involves changes in the transcription and chromatin structure due to tumor initiation and development. In this study, we developed a specifically modified peptide array and searched for a recognized epigenetic reader. Our results demonstrated that BRD4 is not only an acetylation reader but of propionylation as well. We also studied the quantitative binding affinities between modified peptides and epigenetic regulators by isothermal titration calorimetry (ITC). Furthermore, we introduced the Fgfr2-S252W transgenic mouse model to confirm that this acetylation is associated with the activation of c-Myc and drives tumor formation. Targeted disruption of BRD4 in Fgfr2-S252W mouse tumor cells also confirmed that BRD4 is a key regulator of histone 3 acetylation. Finally, we developed a tumor slice culture system and demonstrated the synergy between immune checkpoint blockade and targeted therapy in triple-negative breast cancer (TNBC). These data extend our understanding of epigenetic reprogramming and epigenetics-based therapies.
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Affiliation(s)
- Josh Haipeng Lei
- Cancer Center, Faculty of Health Sciences, University of Macau, Macau, Macau SAR, China.,Ministry of Education (MOE) Frontier Science Centre for Precision Oncology, University of Macau, Taipa, Macau SAR, China.,Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong SAR, China
| | - Lei Zhang
- Cancer Center, Faculty of Health Sciences, University of Macau, Macau, Macau SAR, China.,Department of Vascular Surgery, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Zhenyi Wang
- Hefei National Laboratory for Physical Sciences at the Microscale and School of Life Sciences, University of Science and Technology of China, Heifei, China
| | - Raoul Peltier
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong SAR, China
| | - Yusheng Xie
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong SAR, China.,Department of Pharmacology, School of Basic Medical Sciences, Shandong University, Jinan, China
| | - Ganchao Chen
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong SAR, China
| | - Shiqi Lin
- Cancer Center, Faculty of Health Sciences, University of Macau, Macau, Macau SAR, China.,Ministry of Education (MOE) Frontier Science Centre for Precision Oncology, University of Macau, Taipa, Macau SAR, China
| | - Kai Miao
- Cancer Center, Faculty of Health Sciences, University of Macau, Macau, Macau SAR, China.,Ministry of Education (MOE) Frontier Science Centre for Precision Oncology, University of Macau, Taipa, Macau SAR, China
| | - Chu-Xia Deng
- Cancer Center, Faculty of Health Sciences, University of Macau, Macau, Macau SAR, China.,Ministry of Education (MOE) Frontier Science Centre for Precision Oncology, University of Macau, Taipa, Macau SAR, China
| | - Hongyan Sun
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong SAR, China.,Key Laboratory of Biochip Technology, Biotech and Health Centre, City University of Hong Kong, Shenzhen Research Institute, Shenzhen, China
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7
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Yamamoto-Imoto H, Minami S, Shioda T, Yamashita Y, Sakai S, Maeda S, Yamamoto T, Oki S, Takashima M, Yamamuro T, Yanagawa K, Edahiro R, Iwatani M, So M, Tokumura A, Abe T, Imamura R, Nonomura N, Okada Y, Ayer DE, Ogawa H, Hara E, Takabatake Y, Isaka Y, Nakamura S, Yoshimori T. Age-associated decline of MondoA drives cellular senescence through impaired autophagy and mitochondrial homeostasis. Cell Rep 2022; 38:110444. [PMID: 35235784 DOI: 10.1016/j.celrep.2022.110444] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 12/06/2021] [Accepted: 02/04/2022] [Indexed: 12/13/2022] Open
Abstract
Accumulation of senescent cells affects organismal aging and the prevalence of age-associated disease. Emerging evidence suggests that activation of autophagy protects against age-associated diseases and promotes longevity, but the roles and regulatory mechanisms of autophagy in cellular senescence are not well understood. Here, we identify the transcription factor, MondoA, as a regulator of cellular senescence, autophagy, and mitochondrial homeostasis. MondoA protects against cellular senescence by activating autophagy partly through the suppression of an autophagy-negative regulator, Rubicon. In addition, we identify peroxiredoxin 3 (Prdx3) as another downstream regulator of MondoA essential for mitochondrial homeostasis and autophagy. Rubicon and Prdx3 work independently to regulate senescence. Furthermore, we find that MondoA knockout mice have exacerbated senescence during ischemic acute kidney injury (AKI), and a decrease of MondoA in the nucleus is correlated with human aging and ischemic AKI. Our results suggest that decline of MondoA worsens senescence and age-associated disease.
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Affiliation(s)
- Hitomi Yamamoto-Imoto
- Department of Genetics, Graduate School of Medicine, Osaka University, Suita, Osaka 565-0871, Japan
| | - Satoshi Minami
- Department of Genetics, Graduate School of Medicine, Osaka University, Suita, Osaka 565-0871, Japan; Department of Nephrology, Graduate School of Medicine, Osaka University, Suita, Osaka 565-0871, Japan
| | - Tatsuya Shioda
- Laboratory of Intracellular Membrane Dynamics, Graduate School of Frontier Biosciences, Osaka University, Suita, Osaka 565-0871, Japan
| | - Yurina Yamashita
- Laboratory of Intracellular Membrane Dynamics, Graduate School of Frontier Biosciences, Osaka University, Suita, Osaka 565-0871, Japan
| | - Shinsuke Sakai
- Department of Nephrology, Graduate School of Medicine, Osaka University, Suita, Osaka 565-0871, Japan
| | - Shihomi Maeda
- Department of Nephrology, Graduate School of Medicine, Osaka University, Suita, Osaka 565-0871, Japan
| | - Takeshi Yamamoto
- Department of Nephrology, Graduate School of Medicine, Osaka University, Suita, Osaka 565-0871, Japan
| | - Shinya Oki
- Department of Drug Discovery Medicine, Graduate School of Medicine, Kyoto University, Kyoto 606-8501, Japan
| | - Mizuki Takashima
- Laboratory of Intracellular Membrane Dynamics, Graduate School of Frontier Biosciences, Osaka University, Suita, Osaka 565-0871, Japan
| | - Tadashi Yamamuro
- Department of Genetics, Graduate School of Medicine, Osaka University, Suita, Osaka 565-0871, Japan
| | - Kyosuke Yanagawa
- Department of Genetics, Graduate School of Medicine, Osaka University, Suita, Osaka 565-0871, Japan; Department of Cardiovascular Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka 565-0871, Japan
| | - Ryuya Edahiro
- Department of Statistical Genetics, Graduate School of Medicine, Osaka University, Suita, Osaka 565-0871, Japan; Department of Respiratory Medicine and Clinical Immunology, Graduate School of Medicine, Osaka University, Suita, Osaka 565-0871, Japan
| | - Miki Iwatani
- Department of Genetics, Graduate School of Medicine, Osaka University, Suita, Osaka 565-0871, Japan
| | - Mizue So
- Department of Genetics, Graduate School of Medicine, Osaka University, Suita, Osaka 565-0871, Japan
| | - Ayaka Tokumura
- Department of Genetics, Graduate School of Medicine, Osaka University, Suita, Osaka 565-0871, Japan
| | - Toyofumi Abe
- Department of Urology, Graduate School of Medicine, Osaka University, Suita, Osaka 565-0871, Japan
| | - Ryoichi Imamura
- Department of Urology, Graduate School of Medicine, Osaka University, Suita, Osaka 565-0871, Japan
| | - Norio Nonomura
- Department of Urology, Graduate School of Medicine, Osaka University, Suita, Osaka 565-0871, Japan
| | - Yukinori Okada
- Department of Statistical Genetics, Graduate School of Medicine, Osaka University, Suita, Osaka 565-0871, Japan; Laboratory of Statistical Immunology, Immunology Frontier Research Center (WPI-IFReC), Osaka University, Suita, Osaka 565-0871, Japan; Integrated Frontier Research for Medical Science Division, Institute for Open and Transdisciplinary Research Initiatives (OTRI), Osaka University, Suita, Osaka 565-0871, Japan
| | - Donald E Ayer
- Department of Oncological Sciences, Huntsman Cancer Institute, University of Utah, Salt Lake City, UT 84112, USA
| | - Hidesato Ogawa
- Laboratory of Nuclear Dynamics Group, Graduate School of Frontier Biosciences, Osaka University, Suita, Osaka 565-0871, Japan
| | - Eiji Hara
- Research Institute for Microbial Diseases (RIMD), Osaka University, Suita, Osaka 565-0871, Japan; Immunology Frontier Research Center (IFReC), Osaka University, Suita, Osaka 565-0871, Japan
| | - Yoshitsugu Takabatake
- Department of Nephrology, Graduate School of Medicine, Osaka University, Suita, Osaka 565-0871, Japan
| | - Yoshitaka Isaka
- Department of Nephrology, Graduate School of Medicine, Osaka University, Suita, Osaka 565-0871, Japan
| | - Shuhei Nakamura
- Department of Genetics, Graduate School of Medicine, Osaka University, Suita, Osaka 565-0871, Japan; Laboratory of Intracellular Membrane Dynamics, Graduate School of Frontier Biosciences, Osaka University, Suita, Osaka 565-0871, Japan; Institute for Advanced Co-Creation Studies, Osaka University, Suita, Osaka 565-0871, Japan.
| | - Tamotsu Yoshimori
- Department of Genetics, Graduate School of Medicine, Osaka University, Suita, Osaka 565-0871, Japan; Laboratory of Intracellular Membrane Dynamics, Graduate School of Frontier Biosciences, Osaka University, Suita, Osaka 565-0871, Japan; Integrated Frontier Research for Medical Science Division, Institute for Open and Transdisciplinary Research Initiatives (OTRI), Osaka University, Suita, Osaka 565-0871, Japan.
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8
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Shi C, Yang EJ, Tao S, Ren G, Mou PK, Shim JS. Natural products targeting cancer cell dependency. J Antibiot (Tokyo) 2021; 74:677-686. [PMID: 34163025 DOI: 10.1038/s41429-021-00438-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 06/03/2021] [Indexed: 02/06/2023]
Abstract
Precision cancer medicine is a tailored treatment approach for individual cancer patients with different genomic characteristics. Mutated or hyperactive oncogenes have served as main drug targets in current precision cancer medicine, while defective or inactivated tumor suppressors in general have not been considered as druggable targets. Synthetic lethality is one of very few approaches that enable to target defective tumor suppressors with pharmacological agents. Synthetic lethality exploits cancer cell dependency on a protein or pathway, which arises when the function of a tumor suppressor is defective. This approach has been proven to be effective in clinical settings since the successful clinical introduction of BRCA-PARP synthetic lethality for the treatment of breast and ovarian cancer with defective BRCA. Subsequently, large-scale screenings with RNAi, CRISPR/Cas9-sgRNAs, and chemical libraries have been applied to identify synthetic lethal partners of tumor suppressors. Natural products are an important source for the discovery of pharmacologically active small molecules. However, little effort has been made in the discovery of synthetic lethal small molecules from natural products. This review introduces recent advances in the discovery of natural products targeting cancer cell dependency and discusses potentials of natural products in the precision cancer medicine.
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Affiliation(s)
- Changxiang Shi
- Cancer Centre, Faculty of Health Sciences, University of Macau, Taipa, Macau SAR, China
| | - Eun Ju Yang
- Cancer Centre, Faculty of Health Sciences, University of Macau, Taipa, Macau SAR, China
| | - Shishi Tao
- Cancer Centre, Faculty of Health Sciences, University of Macau, Taipa, Macau SAR, China
| | - Guowen Ren
- Cancer Centre, Faculty of Health Sciences, University of Macau, Taipa, Macau SAR, China
| | - Pui Kei Mou
- Cancer Centre, Faculty of Health Sciences, University of Macau, Taipa, Macau SAR, China
| | - Joong Sup Shim
- Cancer Centre, Faculty of Health Sciences, University of Macau, Taipa, Macau SAR, China. .,MoE Frontiers Science Center for Precision Oncology, University of Macau, Taipa, Macau SAR, China.
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9
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Shi C, Yang EJ, Liu Y, Mou PK, Ren G, Shim JS. Bromodomain and extra-terminal motif (BET) inhibition is synthetic lethal with loss of SMAD4 in colorectal cancer cells via restoring the loss of MYC repression. Oncogene 2020; 40:937-950. [PMID: 33293694 DOI: 10.1038/s41388-020-01580-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 11/18/2020] [Accepted: 11/19/2020] [Indexed: 02/07/2023]
Abstract
The tumor suppressor SMAD4 is frequently mutated in colorectal cancer (CRC). However, no effective targeted therapies exist for CRC with SMAD4 loss. Here, we employed a synthetic lethality drug screening in isogenic SMAD4+/+ and SMAD4-/- HCT116 CRC cells and found that bromodomain and extra-terminal motif (BET) inhibitors, as selective drugs for the growth of SMAD4-/- HCT116 cells. BET inhibition selectively induced G1 cell cycle arrest in SMAD4-/- cells and this effect was accompanied by the reprogramming of the MYC-p21 axis. Mechanistically, SMAD4 is a transcription repressor of MYC, and MYC in turn represses p21 transcription. SMAD4-/- cells lost MYC repression ability, thereby causing the cells addicted to the MYC oncogenic signaling. BET inhibition significantly reduced MYC level and restored p21 expression in SMAD4-/- cells, inducing the selective growth arrest. The ectopic overexpression of MYC or the silencing of p21 could rescue the BET inhibitor-induced growth arrest in SMAD4-/- cells, verifying this model. Tumor xenograft mouse experiments further demonstrated the synthetic lethality interaction between BET and SMAD4 in vivo. Taken together, our data suggest that BET could be a potential drug target for the treatment of SMAD4-deficient CRC.
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Affiliation(s)
- Changxiang Shi
- Cancer Centre, Faculty of Health Sciences, University of Macau, Avenida da Universidade, Taipa, Macau SAR, China
| | - Eun Ju Yang
- Cancer Centre, Faculty of Health Sciences, University of Macau, Avenida da Universidade, Taipa, Macau SAR, China
| | - Yifan Liu
- Cancer Centre, Faculty of Health Sciences, University of Macau, Avenida da Universidade, Taipa, Macau SAR, China
| | - Pui Kei Mou
- Cancer Centre, Faculty of Health Sciences, University of Macau, Avenida da Universidade, Taipa, Macau SAR, China
| | - Guowen Ren
- Cancer Centre, Faculty of Health Sciences, University of Macau, Avenida da Universidade, Taipa, Macau SAR, China
| | - Joong Sup Shim
- Cancer Centre, Faculty of Health Sciences, University of Macau, Avenida da Universidade, Taipa, Macau SAR, China.
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Jaganjac M, Milkovic L, Sunjic SB, Zarkovic N. The NRF2, Thioredoxin, and Glutathione System in Tumorigenesis and Anticancer Therapies. Antioxidants (Basel) 2020; 9:E1151. [PMID: 33228209 PMCID: PMC7699519 DOI: 10.3390/antiox9111151] [Citation(s) in RCA: 75] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 11/16/2020] [Accepted: 11/17/2020] [Indexed: 12/24/2022] Open
Abstract
Cancer remains an elusive, highly complex disease and a global burden. Constant change by acquired mutations and metabolic reprogramming contribute to the high inter- and intratumor heterogeneity of malignant cells, their selective growth advantage, and their resistance to anticancer therapies. In the modern era of integrative biomedicine, realizing that a personalized approach could benefit therapy treatments and patients' prognosis, we should focus on cancer-driving advantageous modifications. Namely, reactive oxygen species (ROS), known to act as regulators of cellular metabolism and growth, exhibit both negative and positive activities, as do antioxidants with potential anticancer effects. Such complexity of oxidative homeostasis is sometimes overseen in the case of studies evaluating the effects of potential anticancer antioxidants. While cancer cells often produce more ROS due to their increased growth-favoring demands, numerous conventional anticancer therapies exploit this feature to ensure selective cancer cell death triggered by excessive ROS levels, also causing serious side effects. The activation of the cellular NRF2 (nuclear factor erythroid 2 like 2) pathway and induction of cytoprotective genes accompanies an increase in ROS levels. A plethora of specific targets, including those involved in thioredoxin (TRX) and glutathione (GSH) systems, are activated by NRF2. In this paper, we briefly review preclinical research findings on the interrelated roles of the NRF2 pathway and TRX and GSH systems, with focus given to clinical findings and their relevance in carcinogenesis and anticancer treatments.
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Affiliation(s)
| | | | | | - Neven Zarkovic
- Laboratory for Oxidative Stress, Division of Molecular Medicine, Rudjer Boskovic Institute, Bijenicka 54, 10000 Zagreb, Croatia; (M.J.); (L.M.); (S.B.S.)
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11
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Shen S, Yao T, Xu Y, Zhang D, Fan S, Ma J. CircECE1 activates energy metabolism in osteosarcoma by stabilizing c-Myc. Mol Cancer 2020; 19:151. [PMID: 33106166 PMCID: PMC7586679 DOI: 10.1186/s12943-020-01269-4] [Citation(s) in RCA: 105] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 10/16/2020] [Indexed: 01/10/2023] Open
Abstract
Background Osteosarcoma (OS) is the most common malignant bone tumor and has a poor prognosis. The potential involvement of circular RNAs (circRNAs) in OS progression remains unexplored. Here, we report that CircECE1, a circular RNA derived from human ECE1, plays a critical role in energy metabolism in OS. Methods The RIP chip sequence assay was performed to confirm CircECE1, through overexpression or knockdown of CircECE1 to verify its function in 143B and U2OS. RNA immunoprecipitation and immunoprecipitation were used to verify CircECE1’s regulation of protein c-Myc and co- immunoprecipitation was used to verified the competitive binding relationship between CircECE1 and SPOP. The influence of CircECE1 on energy metabolism was evaluated by seahorse experiment, western blot, and immunohistochemistry. Results We found that CircECE1 is highly expressed in OS tissues and cells and that CircECE1 knockdown suppresses tumor proliferation and metastasis both in vitro and in vivo. Further, CircECE1 significantly promotes glucose metabolism in OS cells in vitro and in vivo. Mechanistically, CircECE1 interacts with c-Myc to prevent speckle-type POZ-mediated c-Myc ubiquitination and degradation. C-Myc inhibits thioredoxin binding protein (TXNIP) transcription and subsequently activates the Warburg effect. Conclusions CircECE1 regulates the Warburg effect through the c-Myc/TXNIP axis. CircECE1 mediated signal transduction plays a important role in OS process and energy metabolism. These findings may identify novel targets for OS molecular therapy. Supplementary Information The online version contains supplementary material available at 10.1186/s12943-020-01269-4.
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Affiliation(s)
- Shuying Shen
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Medical College of Zhejiang University & Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, 3 East Qingchun Road, Hangzhou, 310016, Zhejiang Province, China
| | - Teng Yao
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Medical College of Zhejiang University & Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, 3 East Qingchun Road, Hangzhou, 310016, Zhejiang Province, China
| | - Yining Xu
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Medical College of Zhejiang University & Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, 3 East Qingchun Road, Hangzhou, 310016, Zhejiang Province, China
| | - Deguang Zhang
- Department of Head and Neck Surgery, Institute of Micro-Invasive Surgery of Zhejiang University, Sir Run Run Shaw Hospital, Medical College of Zhejiang University, 3 East Qingchun Road, Hangzhou, 310016, Zhejiang Province, China
| | - Shunwu Fan
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Medical College of Zhejiang University & Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, 3 East Qingchun Road, Hangzhou, 310016, Zhejiang Province, China.
| | - Jianjun Ma
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Medical College of Zhejiang University & Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, 3 East Qingchun Road, Hangzhou, 310016, Zhejiang Province, China.
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12
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Qiao J, Chen Y, Mi Y, Jin H, Wang L, Huang T, Li H, Song Y, Cao J, Wu B, Wang Q, Zou Z. Macrophages confer resistance to BET inhibition in triple-negative breast cancer by upregulating IKBKE. Biochem Pharmacol 2020; 180:114126. [PMID: 32603665 DOI: 10.1016/j.bcp.2020.114126] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 06/13/2020] [Accepted: 06/25/2020] [Indexed: 02/08/2023]
Abstract
BET inhibitors (BETi) exhibit a strong anti-tumor activity in triple-negative breast cancer (TNBC). However, BETi resistance has been reported in TNBC. The mechanisms of resistance have not been demonstrated. Tumor-associated macrophages (TAMs) are frequently involved in cancer cells resistance to chemotherapy, also associated with poor prognosis in TNBC. However, the role of TAMs in BETi resistance remains unknown. Here, we found that BETi JQ1 and I-BET151 exerted anti-tumor effects in TNBC by decreasing IKBKE expression to attenuate NF-κB signaling. TAMs have been reported to associate with chemoresistance in breast cancer. Here, we firstly found that TNBC-stimulated TAMs activated NF-κB signaling by upregulating IKBKE expression to enhance breast cancer cells resistance to BETi. The IKBKE levels were also proved to be higher in clinical TNBC tissues than Non-TNBC tissues, suggesting feedback induction of IKBKE expression by TNBC-stimulated TAMs in TNBC. Moreover, the induction of IKBKE by TAMs in TNBC cells was identified to be associated with STAT3 signaling, which was activated by TAM-secreted IL-6 and IL-10. Lastly, the combination of inhibitors of BET and STAT3 exerted a synergistic inhibition effects in TAM-cocultured or TAM CM-treated TNBC cells in vitro and in vivo. Altogether, our findings illustrated TNBC-activated macrophages conferred TNBC cells resistance to BETi via IL-6 or IL-10/STAT3/IKBKE/NF-κB axis. Blockade of IKBKE or double inhibition of BET and STAT3 might be a novel strategy for treatment of TNBC.
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Affiliation(s)
- Jianghua Qiao
- Department of Breast Disease, Henan Breast Cancer Center, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital. Zhengzhou 450008 China
| | - Yibing Chen
- Genetic and Prenatal Diagnosis Center, Department of Gynecology and Obstetrics, First Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China
| | - Yanjun Mi
- Department of Medical Oncology, Xiamen Key Laboratory of Antitumor Drug Transformation Research and Thoracic Tumor Diagnosis & Treatment, The First Affiliated Hospital of Xiamen University, Teaching Hospital of Fujian Medical University, Xiamen 361003, China
| | - Huan Jin
- MOE Key Laboratory of Laser Life Science, Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou 510631, China; Guangdong Provincial Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou 510631, China
| | - Lina Wang
- Department of Breast Disease, Henan Breast Cancer Center, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital. Zhengzhou 450008 China
| | - Ting Huang
- MOE Key Laboratory of Laser Life Science, Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou 510631, China; Guangdong Provincial Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou 510631, China
| | - Haolong Li
- MOE Key Laboratory of Laser Life Science, Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou 510631, China; Guangdong Provincial Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou 510631, China
| | - Yucen Song
- Genetic and Prenatal Diagnosis Center, Department of Gynecology and Obstetrics, First Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China
| | - Jun Cao
- Genetic and Prenatal Diagnosis Center, Department of Gynecology and Obstetrics, First Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China
| | - Baoyan Wu
- MOE Key Laboratory of Laser Life Science, Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou 510631, China; Guangdong Provincial Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou 510631, China
| | - Qiming Wang
- Department of Clinical Oncology, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital. Zhengzhou 450008, China.
| | - Zhengzhi Zou
- MOE Key Laboratory of Laser Life Science, Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou 510631, China; Guangdong Provincial Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou 510631, China.
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13
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Zhang B, Lyu J, Yang EJ, Liu Y, Wu C, Pardeshi L, Tan K, Chen Q, Xu X, Deng CX, Shim JS. Class I histone deacetylase inhibition is synthetic lethal with BRCA1 deficiency in breast cancer cells. Acta Pharm Sin B 2020; 10:615-627. [PMID: 32322466 PMCID: PMC7161709 DOI: 10.1016/j.apsb.2019.08.008] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 07/25/2019] [Accepted: 07/27/2019] [Indexed: 02/05/2023] Open
Abstract
Breast cancer susceptibility gene 1 (BRCA1) is a tumor suppressor gene, which is frequently mutated in breast and ovarian cancers. BRCA1 plays a key role in the homologous recombination directed DNA repair, allowing its deficiency to act as a therapeutic target of DNA damaging agents. In this study, we found that inhibition of the class I histone deacetylases (HDAC) exhibited synthetic lethality with BRCA1 deficiency in breast cancer cells. Transcriptome profiling and validation study showed that HDAC inhibition enhanced the expression of thioredoxin interaction protein (TXNIP), causing reactive oxygen species (ROS)-mediated DNA damage. This effect induced preferential apoptosis in BRCA1 -/- breast cancer cells where DNA repair system is compromised. Two animal experiments and gene expression-associated patients' survival analysis further confirmed in vivo synthetic lethality between BRCA1 and HDAC. Finally, the combination of inhibitors of HDAC and bromodomain and extra-terminal motif (BET), another BRCA1 synthetic lethality target that also works through oxidative stress-mediated DNA damage, showed a strong anticancer effect in BRCA1 -/- breast cancer cells. Together, this study provides a new therapeutic strategy for BRCA1-deficient breast cancer by targeting two epigenetic machineries, HDAC and BET.
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