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Zhang M, Huang Y, Bai J, Xu W, Shan H, Sheng L, Gao X, Han Y, Wang S, Bai C, Tian B, Ni Y, Dong Q, Ma F, Zhou X. XAF1 promotes osteoclast apoptosis by antagonizing the XIAP-caspase axis. J Orthop Translat 2024; 47:15-28. [PMID: 38957269 PMCID: PMC11217565 DOI: 10.1016/j.jot.2024.05.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 04/04/2024] [Accepted: 05/03/2024] [Indexed: 07/04/2024] Open
Abstract
Background Over-activated osteoclast (OC) is a major cause of diseases related to bone loss and bone metabolism. Both bone resorption inhibition and apoptosis induction of osteoclast are crucial in treating these diseases. X-linked inhibitor of apoptosis protein (XIAP)-associated factor 1 (XAF1) is an important interferon-stimulated and apoptotic gene. However, how XAF1 regulates bone formation and remodeling is unknown. Methods We generate global and chimeric Xaf1 knockout mouse models and utilize these models to explore the function and mechanism of XAF1 in regulating bone formation and remodeling in vivo and in vitro. Results We show that XAF1 depletion enhances osteoclast generation in vitro. XAF1 knockout increases osteoclast number and bone resorption, thereby exacerbating bone loss in both OVX and osteolysis models. Activation of XAF1 with BV6 (a potent XIAP inhibitor) suppresses osteoclast formation. Mechanistically, XAF1 deletion decreases osteoclast apoptosis by facilitating the interaction between XIAP and caspase-3/7. Conclusions Our data illustrates an essential role of XAF1 in controlling osteoclastogenesis in both osteoporosis and osteolysis mouse models and highlights its underlying mechanism, indicating a potential role in clinical treatment.The translational potential of this article: The translation potential of this article is that we first indicated that osteoclast apoptosis induced by XAF1 contribute to the progression of osteoporosis and osteolysis, which provides a novel strategy in the prevention of osteoporosis and osteolysis.
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Affiliation(s)
- Mingchao Zhang
- Department of Orthopedics, the Second Affiliated Hospital of Soochow University, Suzhou, 215004, Jiangsu, China
- National Key Laboratory of Immunity and Inflammation, and Key Laboratory of Synthetic Biology Regulatory Elements, Suzhou Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Suzhou, 215123, Jiangsu, China
| | - Yingkang Huang
- National Key Laboratory of Immunity and Inflammation, and Key Laboratory of Synthetic Biology Regulatory Elements, Suzhou Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Suzhou, 215123, Jiangsu, China
| | - Jinyu Bai
- Department of Orthopedics, the Second Affiliated Hospital of Soochow University, Suzhou, 215004, Jiangsu, China
| | - Wushuang Xu
- Department of Orthopedics, the Second Affiliated Hospital of Soochow University, Suzhou, 215004, Jiangsu, China
| | - Huajian Shan
- Department of Orthopedics, the Second Affiliated Hospital of Soochow University, Suzhou, 215004, Jiangsu, China
| | - Lei Sheng
- Department of Orthopedics, the Second Affiliated Hospital of Soochow University, Suzhou, 215004, Jiangsu, China
| | - Xiang Gao
- Department of Orthopedics, the Second Affiliated Hospital of Soochow University, Suzhou, 215004, Jiangsu, China
| | - Yu Han
- National Key Laboratory of Immunity and Inflammation, and Key Laboratory of Synthetic Biology Regulatory Elements, Suzhou Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Suzhou, 215123, Jiangsu, China
| | - Shiyou Wang
- National Key Laboratory of Immunity and Inflammation, and Key Laboratory of Synthetic Biology Regulatory Elements, Suzhou Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Suzhou, 215123, Jiangsu, China
| | - Chaowen Bai
- Department of Orthopedics, the Second Affiliated Hospital of Soochow University, Suzhou, 215004, Jiangsu, China
| | - Bo Tian
- Department of Orthopedics, the Second Affiliated Hospital of Soochow University, Suzhou, 215004, Jiangsu, China
| | - Yichao Ni
- Department of Orthopedics, the Second Affiliated Hospital of Soochow University, Suzhou, 215004, Jiangsu, China
| | - Qirong Dong
- Department of Orthopedics, the Second Affiliated Hospital of Soochow University, Suzhou, 215004, Jiangsu, China
| | - Feng Ma
- National Key Laboratory of Immunity and Inflammation, and Key Laboratory of Synthetic Biology Regulatory Elements, Suzhou Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Suzhou, 215123, Jiangsu, China
| | - Xiaozhong Zhou
- Department of Orthopedics, the Second Affiliated Hospital of Soochow University, Suzhou, 215004, Jiangsu, China
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Eloranta R, Vilén ST, Keinänen A, Salo T, Qannam A, Bello IO, Snäll J. Oral squamous cell carcinoma: Effect of tobacco and alcohol on cancer location. Tob Induc Dis 2024; 22:TID-22-112. [PMID: 38895166 PMCID: PMC11185050 DOI: 10.18332/tid/189303] [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: 12/07/2023] [Revised: 05/12/2024] [Accepted: 05/25/2024] [Indexed: 06/21/2024] Open
Abstract
INTRODUCTION The underlying factors of oral squamous cell cancers (OSCC) have been elucidated, but studies have focused little on etiological differences in affected oral cavity sites. The aim of this retrospective study was to clarify the role of carcinogen exposure in OSCC of different oral cavity areas. METHODS A cross-sectional study of patients with primary OSCC was conducted retrospectively, based on patient records from Helsinki University Hospital, Finland, between January 2016 and December 2020. The patients' self-reported history of tobacco smoking and alcohol use was explained by tumor site, age, sex, tumor size, and lymph node status in a logistic regression model. The information on smoking and alcohol use was compiled from a patient background form. RESULTS In 519 patients, tumors occurred most often in the tongue (51%), gingiva (21%), or floor of the mouth (FOM; 15%). FOM had 26-fold greater odds for a history of smoking and alcohol use than other tumor sites (OR=25.78; 95% CI: 8.02-82.95; p<0.001). Gingival and buccal sites were associated significantly less with smoking and alcohol use (OR=0.43, 95% CI: 0.28-0.67; p<0.001 and OR=0.47; 95% CI: 0.25-0.92; p<0.026, respectively). Patients of older age were less likely to have a history of smoking and alcohol use (AOR=0.95; 95% CI: 0.94-0.97; p<0.001) than younger patients. Tumor size (T3-4) and FOM increased the odds for history of smoking and alcohol use (AOR=1.73; 95% CI: 1.15-2.60; p=0.009 and AOR=26.15; 95% CI: 8.01-84.84; p<0.001, respectively). CONCLUSIONS OSCC of oral cavity sites has notable differences in etiology. FOM seems to be related almost exclusively to conventional smoking and heavy alcohol use.
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Affiliation(s)
- Riikka Eloranta
- Department of Oral and Maxillofacial Diseases, Clinicum, Faculty of Medicine, University of Helsinki, Helsinki University Hospital, Helsinki, Finland
| | - Suvi-Tuuli Vilén
- Department of Oral and Maxillofacial Diseases, Clinicum, Faculty of Medicine, University of Helsinki, Helsinki University Hospital, Helsinki, Finland
- Department of Oral and Maxillofacial Diseases, Kymenlaakso Central Hospital Kotka, Kotka, Finland
| | - Arvi Keinänen
- Department of Oral and Maxillofacial Diseases, Clinicum, Faculty of Medicine, University of Helsinki, Helsinki University Hospital, Helsinki, Finland
| | - Tuula Salo
- Department of Oral and Maxillofacial Diseases, Clinicum, Faculty of Medicine, University of Helsinki, Helsinki University Hospital, Helsinki, Finland
- Translational Immunology Research Program (TRIMM), University of Helsinki, Helsinki, Finland
- Research Unit of Population Health, Faculty of Medicine, University of Oulu, Oulu, Finland
- Medical Research Center, Oulu University Hospital, University of Oulu, Oulu, Finland
- Department of Pathology, Helsinki University Hospital, University of Helsinki, Helsinki, Finland
| | - Ahmed Qannam
- Department of Oral Medicine and Diagnostic Sciences, King Saud University College of Dentistry, Riyadh, Saudi Arabia
| | - Ibrahim O. Bello
- Department of Oral Medicine and Diagnostic Sciences, King Saud University College of Dentistry, Riyadh, Saudi Arabia
| | - Johanna Snäll
- Department of Oral and Maxillofacial Diseases, Clinicum, Faculty of Medicine, University of Helsinki, Helsinki University Hospital, Helsinki, Finland
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Eid RA. Acylated ghrelin protection inhibits apoptosis in the remote myocardium post-myocardial infarction by inhibiting calcineurin and activating ARC. Arch Physiol Biochem 2024; 130:215-229. [PMID: 34965150 DOI: 10.1080/13813455.2021.2017463] [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: 10/08/2021] [Accepted: 12/07/2021] [Indexed: 10/19/2022]
Abstract
This study investigated if acylated ghrelin (AG) could inhibit myocardial infarction (MI)-induced apoptosis in the left ventricles (LV) of male rats and tested if this protection involves modulating ARC anti-apoptotic protein. Rats (n = 12/group) were assigned as a sham-operated, a sham + AG (100 µg/kg, 2x/d, S.C.), MI, and MI + AG. With no antioxidant activity or expression of FAS, AG inhibited caspase-3, 8, and 9 and decreased cytosolic/mitochondrial levels of cytochrome-c, Bax, Bad, and Bad-BCL-2 complex in the LVs of the sham-operated and MI-treated rats. Concomitantly, AG preserved the mitochondria structure, decreased mtPTP, and enhanced state-3 respiration in the LVs of both treated groups. These effects were associated with increased mitochondrial levels of ARC and a reduction in the activity of calcineurin. Overall, AG suppresses MI-induced ventricular apoptosis by inhibition of calcineurin, activation of ARC, and preserving mitochondria integrity.
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Affiliation(s)
- Refaat A Eid
- Department of Pathology, College of Medicine, King Khalid University, Abha, Saudi Arabia
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4
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Chen B, Cheng Y, Wu H, Yao J. XAF1 overexpression inhibits the malignant progression and cisplatin resistance of NSCLC by activating endoplasmic reticulum stress. Mol Biol Rep 2024; 51:435. [PMID: 38520543 DOI: 10.1007/s11033-024-09347-2] [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: 11/21/2023] [Accepted: 02/13/2024] [Indexed: 03/25/2024]
Abstract
BACKGROUND XIAP-associated factor 1 (XAF1) has been found to participate in the progression of multiple human cancers. Nevertheless, its role as well as the reaction mechanism in non-small cell lung cancer (NSCLC) still remains obscure. METHODS In this study, the protein expression of XAF1 in NSCLC cell lines was evaluated using western blot. With the employment of CCK-8 assay, EdU staining, wound healing and transwell, capabilities of NSCLC cells to proliferate, migrate and invade were assessed. Cell apoptotic level and cell cycle were resolved utilizing flow cytometry. Western blot was applied for the estimation of apoptosis- and endoplasmic reticulum (ER) stress-related proteins. RESULTS It was discovered that XAF1 expression was conspicuously reduced in NSCLC cell lines. XAF1 overexpression suppressed H1299 cell proliferative, invasive and migrative capabilities, but exhibited promotive effects on cell cycle arrest. Meanwhile, XAF1 overexpression inhibited cisplatin resistance in H1299 and H1299/DDP cells by promoting cell apoptosis and enhanced the expression levels of ER stress-related proteins CHOP, GRP78 and ATF4. What's more, 4-PBA treatment reversed the impacts of XAF1 overexpression on the proliferative, invasive, migrative and apoptotic capabilities of H1299 cells, as well as cell cycle and cisplatin resistance. CONCLUSION In conclusion, XAF1 overexpression impeded the advancement of NSCLC and repressed cisplatin resistance of NSCLC cells through inducing ER stress, which indicated that XAF1 might be a novel targeted-therapy for NSCLC.
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Affiliation(s)
- Bin Chen
- Department of Cardiothoracic Surgery, People's Hospital of Chizhou, Chizhou, 247000, China.
| | - Yuanjun Cheng
- Department of Cardiothoracic Surgery, People's Hospital of Chizhou, Chizhou, 247000, China
| | - Hanqing Wu
- Department of Cardiothoracic Surgery, People's Hospital of Chizhou, Chizhou, 247000, China
| | - Jie Yao
- Department of Cardiothoracic Surgery, People's Hospital of Chizhou, Chizhou, 247000, China.
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Xia J, Ma N, Shi Q, Liu QC, Zhang W, Cao HJ, Wang YK, Zheng QW, Ni QZ, Xu S, Zhu B, Qiu XS, Ding K, Huang JY, Liang X, Chen Y, Xiang YJ, Zhang XR, Qiu L, Chen W, Xie D, Wang X, Long L, Li JJ. XAF1 promotes colorectal cancer metastasis via VCP-RNF114-JUP axis. J Cell Biol 2024; 223:e202303015. [PMID: 38095639 PMCID: PMC10720657 DOI: 10.1083/jcb.202303015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 08/31/2023] [Accepted: 10/16/2023] [Indexed: 12/17/2023] Open
Abstract
Metastasis is the main cause of colorectal cancer (CRC)-related death, and the 5-year relative survival rate for CRC patients with distant metastasis is only 14%. X-linked inhibitor of apoptosis (XIAP)-associated factor 1 (XAF1) is a zinc-rich protein belonging to the interferon (IFN)-induced gene family. Here, we report a metastasis-promoting role of XAF1 in CRC by acting as a novel adaptor of valosin-containing protein (VCP). XAF1 facilitates VCP-mediated deubiquitination of the E3 ligase RING finger protein 114 (RNF114), which promotes K48-linked ubiquitination and subsequent degradation of junction plakoglobin (JUP). The XAF1-VCP-RNF114-JUP axis is critical for the migration and metastasis of CRC cells. Moreover, we observe correlations between the protein levels of XAF1, RNF114, and JUP in clinical samples. Collectively, our findings reveal an oncogenic function of XAF1 in mCRC and suggest that the XAF1-VCP-RNF114-JUP axis is a potential therapeutic target for CRC treatment.
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Affiliation(s)
- Ji Xia
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Ning Ma
- Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qian Shi
- Central Laboratory, The First Affiliated Hospital of Huzhou University, Huzhou, China
| | - Qin-Cheng Liu
- Department of General Surgery, Fengxian Hospital Affiliated to Southern Medical University, Shanghai, China
| | - Wei Zhang
- Department of General Surgery, Fengxian Hospital Affiliated to Southern Medical University, Shanghai, China
| | - Hui-Jun Cao
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Yi-Kang Wang
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Qian-Wen Zheng
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
- School of Life Science and Technology, ShanghaiTech University, Shanghai, China
| | - Qian-Zhi Ni
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Sheng Xu
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Bing Zhu
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Xiao-Song Qiu
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
- School of Life Science and Technology, ShanghaiTech University, Shanghai, China
| | - Kai Ding
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Jing-Yi Huang
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Xin Liang
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Yu Chen
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Yan-Jun Xiang
- Department of Hepatic Surgery VI, Eastern Hepatobiliary Surgery Hospital, Naval Medical University, Shanghai, China
| | - Xi-Ran Zhang
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Lin Qiu
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Wei Chen
- Institute of Clinical Medicine Research, Zhejiang Provincial People’s Hospital, Hangzhou Medical College, Hangzhou, China
| | - Dong Xie
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
- School of Life Science and Technology, ShanghaiTech University, Shanghai, China
- NHC Key Laboratory of Food Safety Risk Assessment, China National Center for Food Safety Risk Assessment, Beijing, China
| | - Xiang Wang
- Key Laboratory of Integrated Oncology and Intelligent Medicine of Zhejiang Province. Affiliated Hangzhou First People’s Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Lingyun Long
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Jing-Jing Li
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
- NHC Key Laboratory of Food Safety Risk Assessment, China National Center for Food Safety Risk Assessment, Beijing, China
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Choo Z, Koh X, Wong MRE, Ashokan RM, Ali Ahamed NSB, Kang C, Kuick CH, Chang KTE, Larisch S, Loh AHP, Chen ZX. Targeted Degradation of XIAP is Sufficient and Specific to Induce Apoptosis in MYCN-overexpressing High-risk Neuroblastoma. CANCER RESEARCH COMMUNICATIONS 2023; 3:2386-2399. [PMID: 37874199 PMCID: PMC10681007 DOI: 10.1158/2767-9764.crc-23-0082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 07/22/2023] [Accepted: 10/16/2023] [Indexed: 10/25/2023]
Abstract
XIAP, the most potent mammalian inhibitor of apoptosis protein (IAP), critically restricts developmental culling of sympathetic neuronal progenitors, and is correspondingly overexpressed in most MYCN-amplified neuroblastoma tumors. Because apoptosis-related protein in the TGFβ signaling pathway (ARTS) is the only XIAP antagonist that directly binds and degrades XIAP, we evaluated the preclinical effectiveness and tolerability of XIAP antagonism as a novel targeting strategy for neuroblastoma. We found that antagonism of XIAP, but not other IAPs, triggered apoptotic death in neuroblastoma cells. XIAP silencing induced apoptosis while overexpression conferred protection from drug-induced apoptosis. From a screen of IAP inhibitors, first-in-class ARTS mimetic A4 was most effective against high-risk and high XIAP-expressing neuroblastoma cells, and least toxic toward normal liver- and bone marrow-derived cells, compared with pan-IAP antagonists. On target engagement assays and nuclear magnetic resonance spectroscopy, A4 was observed to degrade rather than inhibit XIAP, catalyzing rapid degradation of XIAP through the ubiquitin-proteasome pathway. In MYCN-amplified neuroblastoma patient-derived xenografts, A4 significantly prolonged survival as a single agent, and demonstrated synergism with standard-of-care agents to reduce their effective required doses 3- to 6-fold. Engagement and degradation of XIAP by ARTS mimetics is a novel targeting strategy for neuroblastoma that may be especially effective against MYCN-amplified disease with intrinsically high XIAP expression. First-in-class ARTS mimetic A4 demonstrates preclinical efficacy and warrants further development and study. SIGNIFICANCE XIAP degradation is sufficient to kill MYCN-amplified neuroblastoma which overexpresses and relies on XIAP as a brake against cell death, without affecting normal cells.
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Affiliation(s)
- Zhang'E Choo
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- NUS Centre for Cancer Research, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Xiaoying Koh
- Experimental Drug Development Centre, A*STAR, Singapore
| | - Megan Rui En Wong
- VIVA-KKH Paediatric Brain and Solid Tumour Programme, Children's Blood and Cancer Centre, KK Women's and Children's Hospital, Singapore
| | - Ruth Minothini Ashokan
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- NUS Centre for Cancer Research, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Nurul Suhana Binte Ali Ahamed
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- NUS Centre for Cancer Research, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - CongBao Kang
- Experimental Drug Development Centre, A*STAR, Singapore
| | - Chik Hong Kuick
- Department of Pathology and Laboratory Medicine, KK Women's and Children's Hospital, Singapore
| | - Kenneth Tou En Chang
- VIVA-KKH Paediatric Brain and Solid Tumour Programme, Children's Blood and Cancer Centre, KK Women's and Children's Hospital, Singapore
- Department of Pathology and Laboratory Medicine, KK Women's and Children's Hospital, Singapore
- Duke NUS Medical School, Singapore
| | - Sarit Larisch
- Cell Death and Cancer Research Laboratory, Department of Human Biology and Medical Sciences, University of Haifa, Haifa, Israel
| | - Amos Hong Pheng Loh
- VIVA-KKH Paediatric Brain and Solid Tumour Programme, Children's Blood and Cancer Centre, KK Women's and Children's Hospital, Singapore
- Duke NUS Medical School, Singapore
- Cell Death and Cancer Research Laboratory, Department of Human Biology and Medical Sciences, University of Haifa, Haifa, Israel
- Department of Paediatric Surgery, KK Women's and Children's Hospital, Singapore
| | - Zhi Xiong Chen
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- NUS Centre for Cancer Research, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- VIVA-KKH Paediatric Brain and Solid Tumour Programme, Children's Blood and Cancer Centre, KK Women's and Children's Hospital, Singapore
- National University Cancer Institute, Singapore, National University Health System, Singapore
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Li F, Chen D, Zeng Q, Du Y. Possible Mechanisms of Lymphopenia in Severe Tuberculosis. Microorganisms 2023; 11:2640. [PMID: 38004652 PMCID: PMC10672989 DOI: 10.3390/microorganisms11112640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 10/20/2023] [Accepted: 10/24/2023] [Indexed: 11/26/2023] Open
Abstract
Tuberculosis (TB) is a chronic infectious disease caused by Mycobacterium tuberculosis (M. tuberculosis). In lymphopenia, T cells are typically characterized by progressive loss and a decrease in their count results. Lymphopenia can hinder immune responses and lead to systemic immunosuppression, which is strongly associated with mortality. Lymphopenia is a significant immunological abnormality in the majority of patients with severe and advanced TB, and its severity is linked to disease outcomes. However, the underlying mechanism remains unclear. Currently, the research on the pathogenesis of lymphopenia during M. tuberculosis infection mainly focuses on how it affects lymphocyte production, survival, or tissue redistribution. This includes impairing hematopoiesis, inhibiting T-cell proliferation, and inducing lymphocyte apoptosis. In this study, we have compiled the latest research on the possible mechanisms that may cause lymphopenia during M. tuberculosis infection. Lymphopenia may have serious consequences in severe TB patients. Additionally, we discuss in detail potential intervention strategies to prevent lymphopenia, which could help understand TB immunopathogenesis and achieve the goal of preventing and treating severe TB.
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Affiliation(s)
- Fei Li
- Institute of Pathogen Biology, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China; (D.C.); (Q.Z.); (Y.D.)
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Kuang M, Zhao Y, Yu H, Li S, Liu T, Chen L, Chen J, Luo Y, Guo X, Wei X, Li Y, Zhang Z, Wang D, You F. XAF1 promotes anti-RNA virus immune responses by regulating chromatin accessibility. SCIENCE ADVANCES 2023; 9:eadg5211. [PMID: 37595039 PMCID: PMC10438455 DOI: 10.1126/sciadv.adg5211] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Accepted: 07/20/2023] [Indexed: 08/20/2023]
Abstract
A rapid induction of antiviral genes is critical for eliminating viruses, which requires activated transcription factors and opened chromatins to initiate transcription. However, it remains elusive how the accessibility of specific chromatin is regulated during infection. Here, we found that XAF1 functioned as an epigenetic regulator that liberated repressed chromatin after infection. Upon RNA virus infection, MAVS recruited XAF1 and TBK1. TBK1 phosphorylated XAF1 at serine-252 and promoted its nuclear translocation. XAF1 then interacted with TRIM28 with the guidance of IRF1 to the specific locus of antiviral genes. XAF1 de-SUMOylated TRIM28 through its PHD domain, which led to increased accessibility of the chromatin and robust induction of antiviral genes. XAF1-deficient mice were susceptible to RNA virus due to impaired induction of antiviral genes. Together, XAF1 acts as an epigenetic regulator that promotes the opening of chromatin and activation of antiviral immunity by targeting TRIM28 during infection.
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Affiliation(s)
- Ming Kuang
- Institute of Systems Biomedicine, Department of Immunology, School of Basic Medical Sciences, Beijing Key Laboratory of Tumor Systems Biology, NHC Key Laboratory of Medical Immunology, Peking University Health Science Center, Beijing, China
| | - Yingchi Zhao
- Institute of Systems Biomedicine, Department of Immunology, School of Basic Medical Sciences, Beijing Key Laboratory of Tumor Systems Biology, NHC Key Laboratory of Medical Immunology, Peking University Health Science Center, Beijing, China
| | - Haitao Yu
- Institute of Systems Biomedicine, Department of Immunology, School of Basic Medical Sciences, Beijing Key Laboratory of Tumor Systems Biology, NHC Key Laboratory of Medical Immunology, Peking University Health Science Center, Beijing, China
| | - Siji Li
- Ningbo first hospital, Ningbo hospital Zhejiang university, Ningbo, China
| | - Tianyi Liu
- Institute of Systems Biomedicine, Department of Immunology, School of Basic Medical Sciences, Beijing Key Laboratory of Tumor Systems Biology, NHC Key Laboratory of Medical Immunology, Peking University Health Science Center, Beijing, China
| | - Luoying Chen
- Institute of Systems Biomedicine, Department of Immunology, School of Basic Medical Sciences, Beijing Key Laboratory of Tumor Systems Biology, NHC Key Laboratory of Medical Immunology, Peking University Health Science Center, Beijing, China
| | - Jingxuan Chen
- College of Acupuncture and Massage, Shaanxi University of Chinese Medicine, Xixian New Area, Shaanxi Province 712046, China
- Shaanxi Key Laboratory of Acupuncture and Medicine, Xixian New Area, Shaanxi Province 712046, China
| | - Yujie Luo
- Institute of Systems Biomedicine, Department of Immunology, School of Basic Medical Sciences, Beijing Key Laboratory of Tumor Systems Biology, NHC Key Laboratory of Medical Immunology, Peking University Health Science Center, Beijing, China
| | - Xuefei Guo
- Institute of Systems Biomedicine, Department of Immunology, School of Basic Medical Sciences, Beijing Key Laboratory of Tumor Systems Biology, NHC Key Laboratory of Medical Immunology, Peking University Health Science Center, Beijing, China
| | - Xuemei Wei
- Institute of Systems Biomedicine, Department of Immunology, School of Basic Medical Sciences, Beijing Key Laboratory of Tumor Systems Biology, NHC Key Laboratory of Medical Immunology, Peking University Health Science Center, Beijing, China
| | - Yunfei Li
- Institute of Systems Biomedicine, Department of Immunology, School of Basic Medical Sciences, Beijing Key Laboratory of Tumor Systems Biology, NHC Key Laboratory of Medical Immunology, Peking University Health Science Center, Beijing, China
| | - Zeming Zhang
- Institute of Systems Biomedicine, Department of Immunology, School of Basic Medical Sciences, Beijing Key Laboratory of Tumor Systems Biology, NHC Key Laboratory of Medical Immunology, Peking University Health Science Center, Beijing, China
| | - Dandan Wang
- Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Artificial Cell Engineering Technology Research Center, Tianjin Institute of Hepatobiliary Disease, Third Central Hospital of Tianjin, 83 Jintang Road, Hedong District, Tianjin 300170, China
| | - Fuping You
- Institute of Systems Biomedicine, Department of Immunology, School of Basic Medical Sciences, Beijing Key Laboratory of Tumor Systems Biology, NHC Key Laboratory of Medical Immunology, Peking University Health Science Center, Beijing, China
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Chen M, Wang K, Han Y, Yan S, Yuan H, Liu Q, Li L, Li N, Zhu H, Lu D, Wang K, Liu F, Luo D, Zhang Y, Jiang J, Li D, Zhang L, Ji H, Zhou H, Chen Y, Qin J, Gao D. Identification of XAF1 as an endogenous AKT inhibitor. Cell Rep 2023; 42:112690. [PMID: 37384528 DOI: 10.1016/j.celrep.2023.112690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 04/06/2023] [Accepted: 06/08/2023] [Indexed: 07/01/2023] Open
Abstract
AKT kinase is a key regulator in cell metabolism and survival, and its activation is strictly modulated. Herein, we identify XAF1 (XIAP-associated factor) as a direct interacting protein of AKT1, which strongly binds the N-terminal region of AKT1 to block its K63-linked poly-ubiquitination and subsequent activation. Consistently, Xaf1 knockout causes AKT activation in mouse muscle and fat tissues and reduces body weight gain and insulin resistance induced by high-fat diet. Pathologically, XAF1 expression is low and anti-correlated with the phosphorylated p-T308-AKT signal in prostate cancer samples, and Xaf1 knockout stimulates the p-T308-AKT signal to accelerate spontaneous prostate tumorigenesis in mice with Pten heterozygous loss. And ectopic expression of wild-type XAF1, but not the cancer-derived P277L mutant, inhibits orthotopic tumorigenesis. We further identify Forkhead box O 1 (FOXO1) as a transcriptional regulator of XAF1, thus forming a negative feedback loop between AKT1 and XAF1. These results reveal an important intrinsic regulatory mechanism of AKT signaling.
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Affiliation(s)
- Min Chen
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, CAS Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai 200031, China
| | - Kangjunjie Wang
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, CAS Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai 200031, China; Key Laboratory of Systems Health Science of Zhejiang Province, School of Life Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
| | - Ying Han
- University of Chinese Academy of Sciences, Number 19A Yuquan Road, Beijing 100049, China; CAS Key Laboratory of Tissue Microenvironment and Tumor, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, 320 Yueyang Road, Shanghai 200031, China
| | - Shukun Yan
- University of Chinese Academy of Sciences, Number 19A Yuquan Road, Beijing 100049, China; State Key Laboratory of Molecular Biology, Shanghai Institute of Biochemistry and Cell Biology, CAS Center for Excellence in Molecular Cell Science, National Center for Protein Science Shanghai, 333 Haike Road, Shanghai 201210, China
| | - Huairui Yuan
- CAS Key Laboratory of Tissue Microenvironment and Tumor, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, 320 Yueyang Road, Shanghai 200031, China
| | - Qiuli Liu
- Department of Urology, Institute of Surgery Research, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Long Li
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, CAS Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai 200031, China
| | - Ni Li
- CAS Key Laboratory of Tissue Microenvironment and Tumor, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, 320 Yueyang Road, Shanghai 200031, China
| | - Hongwen Zhu
- Department of Analytical Chemistry and CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
| | - Dayun Lu
- University of Chinese Academy of Sciences, Number 19A Yuquan Road, Beijing 100049, China; Department of Analytical Chemistry and CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
| | - Kaihua Wang
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, CAS Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai 200031, China; University of Chinese Academy of Sciences, Number 19A Yuquan Road, Beijing 100049, China
| | - Fen Liu
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, CAS Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai 200031, China; University of Chinese Academy of Sciences, Number 19A Yuquan Road, Beijing 100049, China
| | - Dakui Luo
- Department of Colorectal Surgery, Fudan University Shanghai Cancer Center, Shanghai 200032, China
| | - Yuxue Zhang
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, CAS Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai 200031, China; University of Chinese Academy of Sciences, Number 19A Yuquan Road, Beijing 100049, China
| | - Jun Jiang
- Department of Urology, Institute of Surgery Research, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Dali Li
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
| | - Lei Zhang
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, CAS Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai 200031, China; Key Laboratory of Systems Health Science of Zhejiang Province, School of Life Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China; University of Chinese Academy of Sciences, Number 19A Yuquan Road, Beijing 100049, China
| | - Hongbin Ji
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, CAS Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai 200031, China; Key Laboratory of Systems Health Science of Zhejiang Province, School of Life Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China; University of Chinese Academy of Sciences, Number 19A Yuquan Road, Beijing 100049, China; School of Life Science and Technology, Shanghai Tech University, 100 Haike Road, Shanghai 201210, China
| | - Hu Zhou
- University of Chinese Academy of Sciences, Number 19A Yuquan Road, Beijing 100049, China; Department of Analytical Chemistry and CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
| | - Yong Chen
- Key Laboratory of Systems Health Science of Zhejiang Province, School of Life Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China; University of Chinese Academy of Sciences, Number 19A Yuquan Road, Beijing 100049, China; State Key Laboratory of Molecular Biology, Shanghai Institute of Biochemistry and Cell Biology, CAS Center for Excellence in Molecular Cell Science, National Center for Protein Science Shanghai, 333 Haike Road, Shanghai 201210, China; School of Life Science and Technology, Shanghai Tech University, 100 Haike Road, Shanghai 201210, China.
| | - Jun Qin
- University of Chinese Academy of Sciences, Number 19A Yuquan Road, Beijing 100049, China; CAS Key Laboratory of Tissue Microenvironment and Tumor, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, 320 Yueyang Road, Shanghai 200031, China; Department of Urology, Institute of Surgery Research, Daping Hospital, Army Medical University, Chongqing 400042, China.
| | - Daming Gao
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, CAS Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai 200031, China; Key Laboratory of Systems Health Science of Zhejiang Province, School of Life Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China; University of Chinese Academy of Sciences, Number 19A Yuquan Road, Beijing 100049, China.
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10
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Iyer AS, Shaik MR, Raufman JP, Xie G. The Roles of Zinc Finger Proteins in Colorectal Cancer. Int J Mol Sci 2023; 24:10249. [PMID: 37373394 DOI: 10.3390/ijms241210249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Revised: 06/13/2023] [Accepted: 06/14/2023] [Indexed: 06/29/2023] Open
Abstract
Despite colorectal cancer remaining a leading worldwide cause of cancer-related death, there remains a paucity of effective treatments for advanced disease. The molecular mechanisms underlying the development of colorectal cancer include altered cell signaling and cell cycle regulation that may result from epigenetic modifications of gene expression and function. Acting as important transcriptional regulators of normal biological processes, zinc finger proteins also play key roles in regulating the cellular mechanisms underlying colorectal neoplasia. These actions impact cell differentiation and proliferation, epithelial-mesenchymal transition, apoptosis, homeostasis, senescence, and maintenance of stemness. With the goal of highlighting promising points of therapeutic intervention, we review the oncogenic and tumor suppressor roles of zinc finger proteins with respect to colorectal cancer tumorigenesis and progression.
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Affiliation(s)
- Aishwarya S Iyer
- Department of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Mohammed Rifat Shaik
- Department of Medicine, University of Maryland Medical Center Midtown Campus, Baltimore, MD 21201, USA
| | - Jean-Pierre Raufman
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Maryland School of Medicine, Baltimore, MD 21201, USA
- VA Maryland Healthcare System, Baltimore, MD 21201, USA
- Marlene and Stewart Greenebaum Cancer Center, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Guofeng Xie
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Maryland School of Medicine, Baltimore, MD 21201, USA
- VA Maryland Healthcare System, Baltimore, MD 21201, USA
- Marlene and Stewart Greenebaum Cancer Center, University of Maryland School of Medicine, Baltimore, MD 21201, USA
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11
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Lee TY, Tseng CJ, Wang JW, Wu CP, Chung CY, Tseng TT, Lee SC. Anti-microRNA-1976 as a Novel Approach to Enhance Chemosensitivity in XAF1+ Pancreatic and Liver Cancer. Biomedicines 2023; 11:biomedicines11041136. [PMID: 37189754 DOI: 10.3390/biomedicines11041136] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 04/04/2023] [Accepted: 04/06/2023] [Indexed: 05/17/2023] Open
Abstract
The current cancer treatments using chemoagents are not satisfactory in terms of outcomes and prognosis. Chemoagent treatments result in cell death or arrest, but the accompanying cellular responses are not well-studied. Exosomes, which are extracellular vesicles secreted by living cells, might mediate cellular responses through microRNAs. We found that miR-1976 was highly enriched in exosomes secreted after chemoagent treatment. We developed a novel approach for in situ mRNA target screening and discovered several miR-1976-specific mRNA targets, including the proapoptotic gene XAF1, which was targeted by miR-1976 and which suppressed chemoagent-induced cell apoptosis. Increased RPS6KA1 gene transcription was associated with the increase in its intronic pre-miR-1976 expression. Blockade of miR-1976 could enhance chemosensitivities of hepatoma and pancreatic cancer cells in an XAF1-dependent manner, as evidenced by increased levels of cell apoptosis, reduced IC50 in cell toxicity assays, and suppressed tumor growth in animal xenograft experiments in vivo. We propose that intracellular levels of miR-1976 determine chemosensitivity, and its blockade could be a novel strategy and potential therapeutic application in cancer treatment.
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Affiliation(s)
- Tsai-Yen Lee
- School of Medicine, Fu Jen Catholic University, New Taipei City 24205, Taiwan
| | - Chien-Jen Tseng
- Department of Gastroenterology and General Surgery, ChiMei Hospital, Tainan City 72263, Taiwan
| | - Jin-Wun Wang
- Department of Surgery, ChiMei Hospital, Tainan City 72263, Taiwan
| | - Ching-Po Wu
- School of Medicine, Fu Jen Catholic University, New Taipei City 24205, Taiwan
| | - Chin-Yuan Chung
- School of Medicine, Fu Jen Catholic University, New Taipei City 24205, Taiwan
| | - Ting-Ting Tseng
- School of Medicine, Fu Jen Catholic University, New Taipei City 24205, Taiwan
| | - Shao-Chen Lee
- School of Medicine, Fu Jen Catholic University, New Taipei City 24205, Taiwan
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12
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Fu J, Chen J, Meng X, Luo Z, Liu Y, Wei L. Molecular identification and functional analysis of X-linked inhibitor of apoptosis -associated factor-1 (XAF1) in grass carp, Ctenopharyngodon idella. FISH & SHELLFISH IMMUNOLOGY 2023; 134:108635. [PMID: 36822382 DOI: 10.1016/j.fsi.2023.108635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 02/20/2023] [Accepted: 02/21/2023] [Indexed: 06/18/2023]
Abstract
X-linked inhibitor of apoptosis protein (XIAP) -associated factor 1 (XAF1) is an interferon-stimulated gene which exhibits pro-apoptosis effect. In this study, XAF1 was characterized from grass carp Ctenopharyngodon idella and its expression pattern and function were analyzed. The open reading frame (orf) of XAF1 is 789 nucleotides (nt) encoding 262 amino acids. SMART online search results showed that a C2H2-type and six C2HC-type zinc-fingers were found in XAF1, however, the XAF1 of grass carp showed high sequence identity to zebrafish (71%), low sequence identity to tetrapods (21-22%). Rt-qPCR results showed that XAF1 was constitutively expressed in all tested organs/tissues with highest expression in blood. An inductive expression of XAF1 at mRNA level was observed in peripheral blood leucocytes (PBLs) and C. idellus kidney cells (CIKs) after treatment with C. idellus recombinant interferon-γ (rIFNg). Overexpressing XAF1 in CIKs exhibited resistance against grass carp reovirus (GCRV) and more sensitivity to cisplatin. These results implied a functional homologue of XAF1 in evolution, however the mechanism may require further investigation.
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Affiliation(s)
- Jianping Fu
- College of Life Science, Jiangxi Normal University, Nanchang, Jiangxi Province, 330022, PR China
| | - Jun Chen
- College of Life Science, Jiangxi Normal University, Nanchang, Jiangxi Province, 330022, PR China
| | - XinYan Meng
- College of Life Science, Jiangxi Normal University, Nanchang, Jiangxi Province, 330022, PR China
| | - Zhang Luo
- Tianjin Key Lab of Aqua-Ecology and Aquaculture, College of Fisheries, Tianjin Agricultural University, Tianjin, 300384, PR China
| | - Yi Liu
- College of Life Science, Jiangxi Normal University, Nanchang, Jiangxi Province, 330022, PR China.
| | - Lili Wei
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, Jiangxi Province, 330045, PR China.
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13
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Simonson B, Chaffin M, Hill MC, Atwa O, Guedira Y, Bhasin H, Hall AW, Hayat S, Baumgart S, Bedi KC, Margulies KB, Klattenhoff CA, Ellinor PT. Single-nucleus RNA sequencing in ischemic cardiomyopathy reveals common transcriptional profile underlying end-stage heart failure. Cell Rep 2023; 42:112086. [PMID: 36790929 PMCID: PMC10423750 DOI: 10.1016/j.celrep.2023.112086] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 11/14/2022] [Accepted: 01/23/2023] [Indexed: 02/16/2023] Open
Abstract
Ischemic cardiomyopathy (ICM) is the leading cause of heart failure worldwide, yet the cellular and molecular signature of this disease is largely unclear. Using single-nucleus RNA sequencing (snRNA-seq) and integrated computational analyses, we profile the transcriptomes of over 99,000 human cardiac nuclei from the non-infarct region of the left ventricle of 7 ICM transplant recipients and 8 non-failing (NF) controls. We find the cellular composition of the ischemic heart is significantly altered, with decreased cardiomyocytes and increased proportions of lymphatic, angiogenic, and arterial endothelial cells in patients with ICM. We show that there is increased LAMININ signaling from endothelial cells to other cell types in ICM compared with NF. Finally, we find that the transcriptional changes that occur in ICM are similar to those in hypertrophic and dilated cardiomyopathies and that the mining of these combined datasets can identify druggable genes that could be used to target end-stage heart failure.
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Affiliation(s)
- Bridget Simonson
- Precision Cardiology Laboratory, The Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Cardiovascular Disease Initiative, The Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Mark Chaffin
- Precision Cardiology Laboratory, The Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Cardiovascular Disease Initiative, The Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Matthew C Hill
- Precision Cardiology Laboratory, The Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Cardiovascular Disease Initiative, The Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Cardiovascular Research Center, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Ondine Atwa
- Precision Cardiology Laboratory, The Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Cardiovascular Disease Initiative, The Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Yasmine Guedira
- Precision Cardiology Laboratory, The Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Cardiovascular Disease Initiative, The Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Harshit Bhasin
- Precision Cardiology Laboratory, The Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Cardiovascular Disease Initiative, The Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Amelia W Hall
- Precision Cardiology Laboratory, The Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Gene Regulation Observatory, The Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Sikander Hayat
- Precision Cardiology Laboratory, Bayer US, LLC, Cambridge, MA 02142, USA
| | - Simon Baumgart
- Precision Cardiology Laboratory, Bayer US, LLC, Cambridge, MA 02142, USA
| | - Kenneth C Bedi
- Penn Cardiovascular Institute, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Kenneth B Margulies
- Penn Cardiovascular Institute, University of Pennsylvania, Philadelphia, PA 19104, USA
| | | | - Patrick T Ellinor
- Precision Cardiology Laboratory, The Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Cardiovascular Disease Initiative, The Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Cardiovascular Research Center, Massachusetts General Hospital, Boston, MA 02114, USA.
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14
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Survivin Small Molecules Inhibitors: Recent Advances and Challenges. Molecules 2023; 28:molecules28031376. [PMID: 36771042 PMCID: PMC9919791 DOI: 10.3390/molecules28031376] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 01/24/2023] [Accepted: 01/29/2023] [Indexed: 02/05/2023] Open
Abstract
Survivin, as a member of the inhibitor of apoptosis proteins (IAPs) family, acts as a suppressor of apoptosis and plays a central role in cell division. Survivin has been considered as an important cancer drug target because it is highly expressed in many types of human cancers, while it is effectively absent from terminally differentiated normal tissues. Moreover, survivin is involved in tumor cell resistance to chemotherapy and radiation. Preclinically, downregulation of survivin expression or function reduced tumor growth induced apoptosis and sensitized tumor cells to radiation and chemotherapy in different human tumor models. This review highlights the role of survivin in promoting cellular proliferation and inhibiting apoptosis and summarizes the recent advances in and challenges of developing small-molecule survivin inhibitors.
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15
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Kumar A, Singh AK, Singh H, Thareja S, Kumar P. Regulation of thymidylate synthase: an approach to overcome 5-FU resistance in colorectal cancer. MEDICAL ONCOLOGY (NORTHWOOD, LONDON, ENGLAND) 2022; 40:3. [PMID: 36308643 DOI: 10.1007/s12032-022-01864-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Accepted: 09/29/2022] [Indexed: 01/17/2023]
Abstract
Thymidylate synthase is the rate-limiting enzyme required for DNA synthesis and overexpression of this enzyme causes resistance to cancer cells. Long treatments with 5-FU cause resistance to Thymidylate synthase targeting drugs. We have also compiled different mechanisms of drug resistance including autophagy and apoptosis, drug detoxification and ABC transporters, drug efflux, signaling pathways (AKT/PI3K, RAS-MAPK, WNT/β catenin, mTOR, NFKB, and Notch1 and FOXM1) and different genes associated with resistance in colorectal cancer. We can overcome 5-FU resistance in cancer cells by regulating thymidylate synthase by natural products (Coptidis rhizoma), HDAC inhibitors, mTOR inhibitors, Folate antagonists, and several other drugs which have been used in combination with TS inhibitors. This review is a compilation of different approaches reported for the regulation of thymidylate synthase to overcome resistance in colorectal cancer cells.
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Affiliation(s)
- Adarsh Kumar
- Department of Pharmaceutical Sciences and Natural Products, Central University of Punjab, Ghudda, Bathinda, 151401, India
| | - Ankit Kumar Singh
- Department of Pharmaceutical Sciences and Natural Products, Central University of Punjab, Ghudda, Bathinda, 151401, India
| | - Harshwardhan Singh
- Department of Pharmaceutical Sciences and Natural Products, Central University of Punjab, Ghudda, Bathinda, 151401, India
| | - Suresh Thareja
- Department of Pharmaceutical Sciences and Natural Products, Central University of Punjab, Ghudda, Bathinda, 151401, India
| | - Pradeep Kumar
- Department of Pharmaceutical Sciences and Natural Products, Central University of Punjab, Ghudda, Bathinda, 151401, India.
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16
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Diverse maturity-dependent and complementary anti-apoptotic brakes safeguard human iPSC-derived neurons from cell death. Cell Death Dis 2022; 13:887. [PMID: 36270985 PMCID: PMC9587001 DOI: 10.1038/s41419-022-05340-4] [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: 02/11/2022] [Revised: 10/07/2022] [Accepted: 10/12/2022] [Indexed: 01/23/2023]
Abstract
In humans, most neurons are born during embryonic development and have to persist throughout the entire lifespan of an individual. Thus, human neurons have to develop elaborate survival strategies to protect against accidental cell death. We set out to decipher the developmental adaptations resulting in neuronal resilience. We demonstrate that, during the time course of maturation, human neurons install a complex and complementary anti-apoptotic signaling network. This includes i.) a downregulation of central proteins of the intrinsic apoptosis pathway including several caspases, ii.) a shift in the ratio of pro- and anti-apoptotic BCL-2 family proteins, and iii.) an elaborate regulatory network resulting in upregulation of the inhibitor of apoptosis protein (IAP) XIAP. Together, these adaptations strongly increase the threshold for apoptosis initiation when confronted with a wide range of cellular stressors. Our results highlight how human neurons are endowed with complex and redundant preemptive strategies to protect against stress and cell death.
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17
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Nishimura Y, Iwashita M, Hayashi M, Shinjo T, Watanabe Y, Zeze T, Yamashita A, Fukuda T, Sanui T, Sano T, Asano T, Nishimura F. XAF1 overexpression exacerbates diabetes by promoting pancreatic β-cell apoptosis. Acta Diabetol 2022; 59:1275-1286. [PMID: 35829914 PMCID: PMC9402739 DOI: 10.1007/s00592-022-01930-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 06/22/2022] [Indexed: 11/29/2022]
Abstract
AIMS Pancreatic β-cell apoptosis may be involved in the onset and progression of type 2 diabetes mellitus, although its mechanism remains unclear. We previously demonstrated that macrophage-derived interferon (IFN) β induced X-linked inhibitor of apoptosis-associated factor 1 (XAF1) expression in β-cells and accelerated β-cell apoptosis in vitro. Here, we explored the effects of XAF1 on β-cell function and progression of diabetes in vivo. METHODS Pancreatic β-cell-selective XAF1 overexpressing (Xaf1 Tg) mice were generated. Xaf1 Tg mice and their wild-type (WT) littermates were fed either a normal diet or a 40% or 60% high-fat diet (HFD). The effects of β-cell XAF1 on β-cell apoptosis and exacerbation of diabetes were investigated. RESULTS Palmitic acid induced IFNβ expression in macrophages, and HFD intake promoted macrophage infiltration in pancreatic islets, both of which cooperatively upregulated XAF1 expression in mouse islets. Furthermore, HFD-fed Xaf1 Tg mice demonstrated increased β-cell apoptosis, lowered insulin expression, and impaired glucose tolerance compared with WT mice fed the same diet. These effects were more pronounced in the 60%HFD group than in the 40%HFD group. CONCLUSIONS Pancreatic β-cell XAF1 expression was enhanced via HFD-induced, macrophage-derived IFNβ, which promoted β-cell apoptosis and led to a reduction in insulin secretion and progression of diabetes. To our knowledge, this is the first report to demonstrate an association between pancreatic β-cell XAF1 overexpression and exacerbation of diabetes, thus providing insight into the mechanism of β-cell mass reduction in diabetes.
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Affiliation(s)
- Yuki Nishimura
- Department of Periodontology, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Misaki Iwashita
- Department of Periodontology, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.
| | - Masato Hayashi
- Department of Periodontology, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Takanori Shinjo
- Department of Periodontology, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Yukari Watanabe
- Department of Periodontology, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Tatsuro Zeze
- Department of Periodontology, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Akiko Yamashita
- Department of Periodontology, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Takao Fukuda
- Department of Periodontology, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Terukazu Sanui
- Department of Periodontology, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Tomomi Sano
- Department of Cell Biology and Pharmacology, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Tomoichiro Asano
- Department of Medical Chemistry, Division of Molecular Medical Science, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Fusanori Nishimura
- Department of Periodontology, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
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18
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Abstract
XIAP-associated factor 1 (XAF1) is an interferon (IFN)-stimulated gene (ISG) that enhances IFN-induced apoptosis. However, it is unexplored whether XAF1 is essential for the host fighting against invaded viruses. Here, we find that XAF1 is significantly upregulated in the host cells infected with emerging RNA viruses, including influenza, Zika virus (ZIKV), and SARS-CoV-2. IFN regulatory factor 1 (IRF1), a key transcription factor in immune cells, determines the induction of XAF1 during antiviral immunity. Ectopic expression of XAF1 protects host cells against various RNA viruses independent of apoptosis. Knockout of XAF1 attenuates host antiviral innate immunity in vitro and in vivo, which leads to more severe lung injuries and higher mortality in the influenza infection mouse model. XAF1 stabilizes IRF1 protein by antagonizing the CHIP-mediated degradation of IRF1, thus inducing more antiviral IRF1 target genes, including DDX58, DDX60, MX1, and OAS2. Our study has described a protective role of XAF1 in the host antiviral innate immunity against RNA viruses. We have also elucidated the molecular mechanism that IRF1 and XAF1 form a positive feedback loop to induce rapid and robust antiviral immunity. IMPORTANCE Rapid and robust induction of antiviral genes is essential for the host to clear the invaded viruses. In addition to the IRF3/7-IFN-I-STAT1 signaling axis, the XAF1-IRF1 positive feedback loop synergistically or independently drives the transcription of antiviral genes. Moreover, XAF1 is a sensitive and reliable gene that positively correlates with the viral infection, suggesting that XAF1 is a potential diagnostic marker for viral infectious diseases. In addition to the antitumor role, our study has shown that XAF1 is essential for antiviral immunity. XAF1 is not only a proapoptotic ISG, but it also stabilizes the master transcription factor IRF1 to induce antiviral genes. IRF1 directly binds to the IRF-Es of its target gene promoters and drives their transcriptions, which suggests a unique role of the XAF1-IRF1 loop in antiviral innate immunity, particularly in the host defect of IFN-I signaling such as invertebrates.
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19
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Dermawan JK, Vanoli F, Herviou L, Sung YS, Zhang L, Singer S, Tap WD, Benayed R, Bale TA, Benhamida JK, Dickson BC, Antonescu CR. Comprehensive genomic profiling of EWSR1/FUS::CREB translocation-associated tumors uncovers prognostically significant recurrent genetic alterations and methylation-transcriptional correlates. Mod Pathol 2022; 35:1055-1065. [PMID: 35347249 PMCID: PMC9329182 DOI: 10.1038/s41379-022-01023-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 01/26/2022] [Accepted: 01/27/2022] [Indexed: 12/22/2022]
Abstract
To elucidate the mechanisms underlying the divergent clinicopathologic spectrum of EWSR1/FUS::CREB translocation-associated tumors, we performed a comprehensive genomic analysis of fusion transcript variants, recurrent genetic alterations (mutations, copy number alterations), gene expression, and methylation profiles across a large cohort of tumor types. The distribution of the EWSR1/FUS fusion partners-ATF1, CREB1, and CREM-and exon involvement was significantly different across different tumor types. Our targeted sequencing showed that secondary genetic events are associated with tumor type rather than fusion type. Of the 39 cases that underwent targeted NGS testing, 18 (46%) had secondary OncoKB mutations or copy number alterations (29 secondary genetic events in total), of which 15 (52%) were recurrent. Secondary recurrent, but mutually exclusive, TERT promoter and CDKN2A mutations were identified only in clear cell sarcoma (CCS) and associated with worse overall survival. CDKN2A/B homozygous deletions were recurrent in angiomatoid fibrous histiocytoma (AFH) and restricted to metastatic cases. mRNA upregulation of MITF, CDH19, PARVB, and PFKP was found in CCS, compared to AFH, and correlated with a hypomethylated profile. In contrast, S100A4 and XAF1 were differentially upregulated and hypomethylated in AFH but not CCS. Unsupervised clustering of methylation profiles revealed that CREB family translocation-associated tumors form neighboring but tight, distinct clusters. A sarcoma methylation classifier was able to accurately match 100% of CCS cases to the correct methylation class; however, it was suboptimal when applied to other histologies. In conclusion, our comprehensive genomic profiling of EWSR1/FUS::CREB translocation-associated tumors uncovered mostly histotype, rather than fusion-type associated correlations in transcript variants, prognostically significant secondary genetic alterations, and gene expression and methylation patterns.
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Affiliation(s)
| | - Fabio Vanoli
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Laurie Herviou
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Yun-Shao Sung
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Lei Zhang
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Samuel Singer
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - William D. Tap
- Department of Medicine, Sarcoma Service, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Ryma Benayed
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Tejus A. Bale
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Jamal K. Benhamida
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Brendan C. Dickson
- Department of Pathology and Laboratory Medicine, Sinai Health System, Toronto, Ontario, Canada
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20
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XAF1 drives apoptotic switch of endoplasmic reticulum stress response through destabilization of GRP78 and CHIP. Cell Death Dis 2022; 13:655. [PMID: 35902580 PMCID: PMC9334361 DOI: 10.1038/s41419-022-05112-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 07/13/2022] [Accepted: 07/18/2022] [Indexed: 01/21/2023]
Abstract
X-linked inhibitor of apoptosis-associated factor-1 (XAF1) is a stress-inducible tumor suppressor that is commonly inactivated in many human cancers. Despite accumulating evidence for the pro-apoptotic role for XAF1 under various stressful conditions, its involvement in endoplasmic reticulum (ER) stress response remains undefined. Here, we report that XAF1 increases cell sensitivity to ER stress and acts as a molecular switch in unfolded protein response (UPR)-mediated cell-fate decisions favoring apoptosis over adaptive autophagy. Mechanistically, XAF1 interacts with and destabilizes ER stress sensor GRP78 through the assembly of zinc finger protein 313 (ZNF313)-mediated destruction complex. Moreover, XAF1 expression is activated through PERK-Nrf2 signaling and destabilizes C-terminus of Hsc70-interacting protein (CHIP) ubiquitin E3 ligase, thereby blocking CHIP-mediated K63-linked ubiquitination and subsequent phosphorylation of inositol-required enzyme-1α (IRE1α) that is involved in in the adaptive ER stress response. In tumor xenograft assays, XAF1-/- tumors display substantially lower regression compared to XAF1+/+ tumors in response to cytotoxic dose of ER stress inducer. XAF1 and GRP78 expression show an inverse correlation in human cancer cell lines and primary breast carcinomas. Collectively this study uncovers an important role for XAF1 as a linchpin to govern the sensitivity to ER stress and the outcomes of UPR signaling, illuminating the mechanistic consequence of XAF1 inactivation in tumorigenesis.
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21
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Chen CP, Wang LK, Chen CY, Chen CY, Kuo YH, Wu YH. Decreased junctional adhesion molecule 3 expression induces reactive oxygen species production and apoptosis in trophoblasts. Biol Reprod 2022; 107:1264-1278. [DOI: 10.1093/biolre/ioac149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 06/30/2022] [Accepted: 07/14/2022] [Indexed: 11/15/2022] Open
Abstract
Abstract
Junctional adhesion molecule 3 (JAM3) involved in epithelial cell junction, cell polarity and motility. The molecular mechanisms underlying the role of JAM3 in placental dysfunction remain unclear. We hypothesized that JAM3 expression regulates trophoblast fusion, differentiation, proliferation, and apoptosis. Our results revealed that JAM3 was expressed in the cytotrophoblasts and syncytiotrophoblasts of first-trimester and term placental villi. JAM3 expression in cell–cell junctions decreased with the formation of syncytiotrophoblasts. Using trophoblasts as an in vitro model, we observed that forskolin and JAM3 knockdown significantly reduced JAM3 expression and increased syncytium formation. JAM3 knockdown additionally inhibited trophoblast proliferation and increased the number of trophoblasts in the sub-G1 and G2/M phases, indicating cell cycle disturbance and apoptosis. Cell cycle arrest was associated with the engagement of Checkpoint kinase 2–cell division cycle 25C–Cyclin-dependent kinase 1/Cyclin B1 signaling. Increased expression of BIM, NOXA, XAF1, cytochrome c, and cleaved caspase-3 further indicated trophoblast apoptosis. Overexpression of JAM3 or recombinant JAM3 protein enhanced trophoblast adhesion and migration, which were inhibited by JAM3 knockdown. JAM3 knockdown induced reactive oxygen species and syncytin 2 expression in trophoblasts. Furthermore, H2O2-induced oxidative stress reduced JAM3 expression in trophoblasts and cell culture supernatants. H2O2 simultaneously induced trophoblast apoptosis. JAM3 expression was significantly decreased in the plasmas and placentas of patients with early-onset severe preeclampsia. Thus, our results demonstrate that JAM3 may not only be a structural component of trophoblast cell junctions but also regulate trophoblast fusion, differentiation, proliferation, apoptosis, and motility. Dysregulated trophoblast JAM3 expression is crucial in preeclampsia development.
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Affiliation(s)
- Chie-Pein Chen
- Division of High Risk Pregnancy
- Department of Medical Research , MacKay Memorial Hospital, Taipei, Taiwan
| | | | | | - Chia-Yu Chen
- Department of Medical Research , MacKay Memorial Hospital, Taipei, Taiwan
| | - Yi-Hsiu Kuo
- Department of Medical Research , MacKay Memorial Hospital, Taipei, Taiwan
| | - Yi-Hsin Wu
- Department of Medical Research , MacKay Memorial Hospital, Taipei, Taiwan
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22
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Gu D, Dong K, Jiang A, Jiang S, Fu Z, Bao Y, Huang F, Yang C, Wang L. PBRM1 Deficiency Sensitizes Renal Cancer Cells to DNMT Inhibitor 5-Fluoro-2'-Deoxycytidine. Front Oncol 2022; 12:870229. [PMID: 35719970 PMCID: PMC9204009 DOI: 10.3389/fonc.2022.870229] [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: 02/06/2022] [Accepted: 05/11/2022] [Indexed: 11/26/2022] Open
Abstract
PBRM1 is a tumor suppressor frequently mutated in clear cell renal cell carcinoma. However, no effective targeted therapies exist for ccRCC with PBRM1 loss. To identify novel therapeutic approaches to targeting PBRM1-deficient renal cancers, we employed a synthetic lethality compound screening in isogenic PBRM1+/+ and PBRM1-/- 786-O renal tumor cells and found that a DNMT inhibitor 5-Fluoro-2’-deoxycytidine (Fdcyd) selectively inhibit PBRM1-deficient tumor growth. RCC cells lacking PBRM1 show enhanced DNA damage response, which leads to sensitivity to DNA toxic drugs. Fdcyd treatment not only induces DNA damage, but also re-activated a pro-apoptotic factor XAF1 and further promotes the genotoxic stress-induced PBRM1-deficient cell death. This study shows a novel synthetic lethality interaction between PBRM1 loss and Fdcyd treatment and indicates that DNMT inhibitor represents a novel strategy for treating ccRCC with PBRM1 loss-of-function mutations.
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Affiliation(s)
- Di Gu
- Department of Urology, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Kai Dong
- Department of Urology, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Aimin Jiang
- Department of Urology, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Shaoqin Jiang
- Department of Urology, Changhai Hospital, Naval Medical University, Shanghai, China.,Department of Urology, Fujian Union Hospital, Fujian Medical University, Fuzhou, China
| | - Zhibin Fu
- Department of Urology, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Yewei Bao
- Department of Urology, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Fuzhao Huang
- Department of Urology, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Chenghua Yang
- Department of Urology, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Linhui Wang
- Department of Urology, Changhai Hospital, Naval Medical University, Shanghai, China
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DCAF12 promotes apoptosis and inhibits NF-κB activation by acting as an endogenous antagonist of IAPs. Oncogene 2022; 41:3000-3010. [PMID: 35459779 DOI: 10.1038/s41388-022-02319-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 04/05/2022] [Accepted: 04/07/2022] [Indexed: 11/08/2022]
Abstract
Members of the Inhibitor of Apoptosis Protein (IAP) family are essential for cell survival and appear to neutralize the cell death machinery by binding pro-apoptotic caspases. dcaf12 was recently identified as an apoptosis regulator in Drosophila. However, the underlying molecular mechanisms are unknown. Here we revealed that human DCAF12 homolog binds multiple IAPs, including XIAP, cIAP1, cIAP2, and BRUCE, through recognition of BIR domains in IAPs. The pro-apoptotic function of DCAF12 is dependent on its capacity to bind IAPs. In response to apoptotic stimuli, DCAF12 translocates from the nucleus to the cytoplasm, where it blocks the interaction between XIAP and pro-apoptotic caspases to facilitate caspase activation and apoptosis execution. Similarly, DCAF12 suppresses NF-κB activation in an IAP binding-dependent manner. Moreover, DCAF12 acts as a tumor suppressor to restrict the malignant phenotypes of cancer cells. Together, our results suggest that DCAF12 is an evolutionarily conserved IAP antagonist.
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24
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Lim JS, Lee KW, Ko KP, Jeong SI, Ryu BK, Lee MG, Chi SG. XAF1 destabilizes estrogen receptor α through the assembly of a BRCA1-mediated destruction complex and promotes estrogen-induced apoptosis. Oncogene 2022; 41:2897-2908. [DOI: 10.1038/s41388-022-02315-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 03/31/2022] [Accepted: 04/01/2022] [Indexed: 11/09/2022]
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25
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Subcellular localization of X-linked inhibitor of apoptosis protein (XIAP) in cancer: does that matter? BBA ADVANCES 2022; 2:100050. [PMID: 37082602 PMCID: PMC10074912 DOI: 10.1016/j.bbadva.2022.100050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 02/25/2022] [Accepted: 03/15/2022] [Indexed: 11/20/2022] Open
Abstract
X-linked inhibitor of apoptosis protein (XIAP) finely tunes the balance between survival and death to control homeostasis. XIAP is found aberrantly expressed in cancer, which has been shown to promote resistance to therapy-induced apoptosis and confer poor outcome. Despite its predominant cytoplasmic localization in human tissues, growing evidence implicates the expression of XIAP in other subcellular compartments in sustaining cancer hallmarks. Herein, we review our current knowledge on the prognostic role of XIAP localization and discuss molecular mechanisms underlying differential biological functions played in each compartment. The comprehension of XIAP subcellular shuttling and functional dynamics might provide the rationale for future anticancer therapeutics.
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26
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Cytoplasmic and Nuclear Functions of cIAP1. Biomolecules 2022; 12:biom12020322. [PMID: 35204822 PMCID: PMC8869227 DOI: 10.3390/biom12020322] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 02/11/2022] [Accepted: 02/14/2022] [Indexed: 12/12/2022] Open
Abstract
Cellular inhibitor of apoptosis 1 (cIAP1) is a cell signaling regulator of the IAP family. Through its E3-ubiquitine ligase activity, it has the ability to activate intracellular signaling pathways, modify signal transduction pathways by changing protein-protein interaction networks, and stop signal transduction by promoting the degradation of critical components of signaling pathways. Thus, cIAP1 appears to be a potent determinant of the response of cells, enabling their rapid adaptation to changing environmental conditions or intra- or extracellular stresses. It is expressed in almost all tissues, found in the cytoplasm, membrane and/or nucleus of cells. cIAP1 regulates innate immunity by controlling signaling pathways mediated by tumor necrosis factor receptor superfamily (TNFRs), some cytokine receptors and pattern recognition-receptors (PRRs). Although less documented, cIAP1 has also been involved in the regulation of cell migration and in the control of transcriptional programs.
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27
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Lee MG, Choi Z, Lim NJ, Lim JS, Lee KW, Ko KP, Ryu BK, Kang SH, Chi SG. XAF1 directs glioma response to temozolomide through apoptotic transition of autophagy by activation of ROS-ATM-AMPK signaling. Neurooncol Adv 2022; 4:vdac013. [PMID: 35274103 PMCID: PMC8903238 DOI: 10.1093/noajnl/vdac013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/09/2022] Open
Abstract
Abstract
Background
X-linked inhibitor of apoptosis-associated factor 1 (XAF1) is a tumor suppressor that is commonly inactivated in multiple human cancers. However, its role in the pathogenesis and therapeutic response of glioma is poorly characterized.
Methods
XAF1 activation by temozolomide (TMZ) and its effect on TMZ cytotoxicity were defined using luciferase reporter, flow cytometry, and immunofluorescence assays. Signaling mechanism was analyzed using genetic and pharmacologic experiments. In vivo studies were performed in mice to validate the role of XAF1 in TMZ therapy.
Results
Epigenetic alteration of XAF1 is frequent in cell lines and primary tumors and contributes to cancer cell growth. XAF1 transcription is activated by TMZ via JNK-IRF-1 signaling to promote apoptosis while it is impaired by promoter hypermethylation. In tumor cells expressing high O 6methylguanineDNA methyltransferase (MGMT), XAF1 response to TMZ is debilitated. XAF1 facilitates TMZ-mediated autophagic flux to direct an apoptotic transition of protective autophagy. Mechanistically, XAF1 is translocated into the mitochondria to stimulate reactive oxygen species (ROS) production and ataxia telangiectasia mutated (ATM)-AMPactivated protein kinase (AMPK) signaling. A mutant XAF1 lacking the zinc finger 6 domain fails to localize in the mitochondria and activate ROS-ATMAMPK signaling and autophagy-mediated apoptosis. XAF1restored xenograft tumors display a reduced growth rate and enhanced therapeutic response to TMZ, which is accompanied with activation of ATMAMPK signaling. XAF1 expression is associated with overall survival of TMZ treatment patients, particularly with low MGMT cancer.
Conclusions
This study uncovers an important role for the XAF1ATMAMPK axis as a linchpin to govern glioma response to TMZ therapy.
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Affiliation(s)
- Min Goo Lee
- Department of Life Sciences, Korea University, Seoul 02841, Republic of Korea
| | - Zisun Choi
- Department of Life Sciences, Korea University, Seoul 02841, Republic of Korea
| | - Na Jung Lim
- Department of Life Sciences, Korea University, Seoul 02841, Republic of Korea
| | - Ji Sun Lim
- Department of Life Sciences, Korea University, Seoul 02841, Republic of Korea
| | - Kyung Woo Lee
- Department of Life Sciences, Korea University, Seoul 02841, Republic of Korea
| | - Kyung Phil Ko
- Department of Life Sciences, Korea University, Seoul 02841, Republic of Korea
| | - Byung Kyu Ryu
- Department of Life Sciences, Korea University, Seoul 02841, Republic of Korea
- Department of Neurosurgery, School of Medicine, Korea University, Seoul 02841, Republic of Korea
| | - Shin Hyuk Kang
- Department of Neurosurgery, School of Medicine, Korea University, Seoul 02841, Republic of Korea
| | - Sung Gil Chi
- Department of Life Sciences, Korea University, Seoul 02841, Republic of Korea
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28
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Bakalar D, Sweat S, Drossel G, Jiang SZ, Samal BS, Stroth N, Xu W, Zhang L, Zhang H, Eiden LE. Relationships between constitutive and acute gene regulation, and physiological and behavioral responses, mediated by the neuropeptide PACAP. Psychoneuroendocrinology 2022; 135:105447. [PMID: 34741979 PMCID: PMC8900973 DOI: 10.1016/j.psyneuen.2021.105447] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 09/10/2021] [Accepted: 10/08/2021] [Indexed: 01/03/2023]
Abstract
Since the advent of gene knock-out technology in 1987, insight into the role(s) of neuropeptides in centrally- and peripherally-mediated physiological regulation has been gleaned by examining altered physiological functioning in mammals, predominantly mice, after genetic editing to produce animals deficient in neuropeptides or their cognate G-protein coupled receptors (GPCRs). These results have complemented experiments involving infusion of neuropeptide agonists or antagonists systemically or into specific brain regions. Effects of gene loss are often interpreted as indicating that the peptide and its receptor(s) are required for the physiological or behavioral responses elicited in wild-type mice at the time of experimental examination. These interpretations presume that peptide/peptide receptor gene deletion affects only the expression of the peptide/receptor itself, and therefore impacts physiological events only at the time at which the experiment is conducted. A way to support 'real-time' interpretations of neuropeptide gene knock-out is to demonstrate that the wild-type transcriptome, except for the deliberately deleted gene(s), in tissues of interest, is preserved in the knock-out mouse. Here, we show that there is a cohort of genes (constitutively PACAP-Regulated Genes, or cPRGs) whose basal expression is affected by constitutive knock-out of the Adcyap1 gene in C57Bl6/N mice, and additional genes whose expression in response to physiological challenge, in adults, is altered or impaired in the absence of PACAP expression (acutely PACAP-Regulated Genes, or aPRGs). Distinguishing constitutive and acute transcriptomic effects of neuropeptide deficiency on physiological function and behavior in mice reveals alternative mechanisms of action, and changing functions of neuropeptides, throughout the lifespan.
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Affiliation(s)
- Dana Bakalar
- Section on Molecular Neuroscience, National Institute of Mental Heath - Intramural Research Program, Bethesda, MD. NIH, USA
| | - Sean Sweat
- Section on Molecular Neuroscience, National Institute of Mental Heath - Intramural Research Program, Bethesda, MD. NIH, USA
| | - Gunner Drossel
- Section on Molecular Neuroscience, National Institute of Mental Heath - Intramural Research Program, Bethesda, MD. NIH, USA
| | - Sunny Z. Jiang
- Section on Molecular Neuroscience, National Institute of Mental Heath - Intramural Research Program, Bethesda, MD. NIH, USA
| | - Babru S. Samal
- Section on Molecular Neuroscience, National Institute of Mental Heath - Intramural Research Program, Bethesda, MD. NIH, USA
| | - Nikolas Stroth
- Section on Molecular Neuroscience, National Institute of Mental Heath - Intramural Research Program, Bethesda, MD. NIH, USA
| | - Wenqin Xu
- Section on Molecular Neuroscience, National Institute of Mental Heath - Intramural Research Program, Bethesda, MD. NIH, USA
| | - Limei Zhang
- Section on Molecular Neuroscience, National Institute of Mental Heath - Intramural Research Program, Bethesda, MD. NIH, USA,Department of Physiology, Autonomous National University of Mexico (UNAM) Medical School, Mexico City, Mexico
| | - Haiying Zhang
- Section on Molecular Neuroscience, National Institute of Mental Heath - Intramural Research Program, Bethesda, MD. NIH, USA
| | - Lee E. Eiden
- Section on Molecular Neuroscience, National Institute of Mental Heath - Intramural Research Program, Bethesda, MD. NIH, USA,Correspondence Lee E. Eiden, Ph.D., Section on Molecular Neuroscience, National Institute of Mental Heath – Intramural Research Program, Bethesda, MD. NIH, USA, Phone: +13014964110,
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29
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Schober A, Blay RM, Saboor Maleki S, Zahedi F, Winklmaier AE, Kakar MY, Baatsch IM, Zhu M, Geißler C, Fusco AE, Eberlein A, Li N, Megens RTA, Banafsche R, Kumbrink J, Weber C, Nazari-Jahantigh M. MicroRNA-21 Controls Circadian Regulation of Apoptosis in Atherosclerotic Lesions. Circulation 2021; 144:1059-1073. [PMID: 34233454 DOI: 10.1161/circulationaha.120.051614] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background: The necrotic core partly formed by ineffective efferocytosis increases the risk of an atherosclerotic plaque rupture. microRNAs contribute to necrotic core formation by regulating efferocytosis and macrophage apoptosis. Atherosclerotic plaque rupture occurs at increased frequency in the early morning, indicating diurnal changes in plaque vulnerability. Although circadian rhythms play a role in atherosclerosis, the molecular clock output pathways that control plaque composition and rupture susceptibility are unclear. Methods: Circadian gene expression, necrotic core size, and apoptosis and efferocytosis in aortic lesions were investigated at different times of the day in Apoe-/-Mir21+/+ mice and Apoe-/- Mir21-/- mice after consumption of a high-fat diet for 12 weeks feeding. Genome-wide gene expression and lesion formation were analyzed in bone marrow (BM)-transplanted mice. Diurnal changes in apoptosis and clock gene expression were determined in human atherosclerotic lesions. Results: The expression of molecular clock genes, lesional apoptosis, and necrotic core size were diurnally regulated in Apoe-/- mice. Efferocytosis did not match the diurnal increase in apoptosis at the beginning of the active phase. However, in parallel with apoptosis, expression levels of oscillating Mir21 strands decreased in the mouse atherosclerotic aorta. Mir21 knockout abolished circadian regulation of apoptosis and reduced necrotic core size, but did not affect core clock gene expression. Further, Mir21 knockout upregulated expression of pro-apoptotic XIAP associated factor 1 (Xaf1) in the atherosclerotic aorta, which abolished circadian expression of Xaf1. The anti-apoptotic effect of Mir21 was mediated by non-canonical targeting of Xaf1 through both Mir21 strands. Mir21 knockout in BM cells also reduced atherosclerosis and necrotic core size. Circadian regulation of clock gene expression was confirmed in human atherosclerotic lesions. Apoptosis oscillated diurnally in phase with XAF1 expression, demonstrating an early morning peak anti-phase to that of the Mir21 strands. Conclusions: Our findings suggest that the molecular clock in atherosclerotic lesions induces a diurnal rhythm of apoptosis regulated by circadian Mir21 expression in macrophages that is not matched by efferocytosis, thus increasing the size of the necrotic core.
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Affiliation(s)
- Andreas Schober
- Institute for Cardiovascular Prevention, University Hospital of Ludwig-Maximilians-University, Munich, Germany; DZHK, German Centre for Cardiovascular Research, partner site Munich Heart Alliance, Munich, Germany
| | - Richard M Blay
- Institute for Cardiovascular Prevention, University Hospital of Ludwig-Maximilians-University, Munich, Germany
| | - Saffiyeh Saboor Maleki
- Institute for Cardiovascular Prevention, University Hospital of Ludwig-Maximilians-University, Munich, Germany
| | - Farima Zahedi
- Institute for Cardiovascular Prevention, University Hospital of Ludwig-Maximilians-University, Munich, Germany
| | - Anja E Winklmaier
- Department of Vascular Surgery, University Hospital of Ludwig-Maximilians-University, Munich, Germany
| | - Mati Y Kakar
- Institute for Cardiovascular Prevention, University Hospital of Ludwig-Maximilians-University, Munich, Germany
| | - Isabelle M Baatsch
- Institute for Cardiovascular Prevention, University Hospital of Ludwig-Maximilians-University, Munich, Germany
| | - Mengyu Zhu
- Institute for Cardiovascular Prevention, University Hospital of Ludwig-Maximilians-University, Munich, Germany
| | - Claudia Geißler
- Institute for Cardiovascular Prevention, University Hospital of Ludwig-Maximilians-University, Munich, Germany
| | - Anja E Fusco
- Institute for Cardiovascular Prevention, University Hospital of Ludwig-Maximilians-University, Munich, Germany
| | - Anna Eberlein
- Institute for Cardiovascular Prevention, University Hospital of Ludwig-Maximilians-University, Munich, Germany
| | - Nan Li
- Institute for Cardiovascular Prevention, University Hospital of Ludwig-Maximilians-University, Munich, Germany
| | - Remco T A Megens
- Institute for Cardiovascular Prevention, University Hospital of Ludwig-Maximilians-University, Munich, Germany; Cardiovascular Research Institute Maastricht (CARIM), Department of Biomedical Engineering, Maastricht University, Maastricht, the Netherlands
| | - Ramin Banafsche
- Department of Vascular Surgery, University Hospital of Ludwig-Maximilians-University, Munich, Germany
| | - Jörg Kumbrink
- Institute for Pathology, Ludwig-Maximilians-University, Munich, Germany
| | - Christian Weber
- Institute for Cardiovascular Prevention, University Hospital of Ludwig-Maximilians-University, Munich, Germany; DZHK, German Centre for Cardiovascular Research, partner site Munich Heart Alliance, Munich, Germany
| | - Maliheh Nazari-Jahantigh
- Institute for Cardiovascular Prevention, University Hospital of Ludwig-Maximilians-University, Munich, Germany; DZHK, German Centre for Cardiovascular Research, partner site Munich Heart Alliance, Munich, Germany
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30
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Liu J, Liu X, Wei B, Liu J, Wang Y, Liu H. [Effect of stable overexpression of XAF1 gene on biological characteristics of ovarian cancer A2780 cells]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2021; 41:760-766. [PMID: 34134965 DOI: 10.12122/j.issn.1673-4254.2021.05.18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To construct an ovarian cancer cell line stably overexpressing XAF1 gene and observe the effects of XAF1 gene overexpression on proliferation, apoptosis, cell cycle and sensitivity to paclitaxel of the cells. OBJECTIVE Ovarian cancer A2780 cells were transfected with the plasmids pcDNA3.1(+) or pcDNA3.1(+)-XAF1, and the cells stably Over expressing XAF1 (A2780/XAF1 cells) were screened using G418. Cell clone formation assay and CCK8 assay were used to evaluate the changes in proliferation and paclitaxel sensitivity of the transfected cells, and cell cycle and apoptosis of the cells were analyzed using flow cytometry. OBJECTIVE We successfully obtained A2780/XAF1 cells stably overexpressing XAF1, which exhibited no significant changes in cell morphology. Compared with the negative control cells (A2780/NC), A2780/XAF1 cells had lowered clone formation ability (P=0.0016) and attenuated proliferative activity on the first (P=0.009) and third (P=0.0035) days after cell adherence with also a significantly increased percentage of cells in G2-M phase (P < 0.001). A2780/XAF1 cells showed significantly higher apoptosis rates than A2780/NC cells in the absence of apoptotic stimulation, in serum-free culture or following paclitaxel induction (P < 0.001). The proliferative activity of A2780/XAF1 cells was significantly lower than that of A2780/NC cells after exposure to different paclitaxel concentrations (P < 0.001). The half inhibitory concentration of paclitaxel was significantly lower in A2780/XAF1 than in A2780/NC cells. OBJECTIVE Overexpression of XAF1 significantly inhibits the proliferation, induces cell cycle arrest, promotes apoptosis, and increases paclitaxel sensitivity in ovarian cancer cells.
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Affiliation(s)
- J Liu
- Department of Obstetrics and Gynecology, West China Second Hospital, Sichuan University, Chengdu 610041, China.,Key Laboratory of Birth Defects and Related Gynecological Diseases of the Ministry of Education, Sichuan University, Chengdu 610041, China
| | - X Liu
- Department of Gynecology, The Sixth People's Hospital of Chengdu, Chengdu 610051
| | - B Wei
- Department of Gynecology, Affiliated Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610075, China
| | - J Liu
- Department of Obstetrics and Gynecology, West China Second Hospital, Sichuan University, Chengdu 610041, China.,Key Laboratory of Birth Defects and Related Gynecological Diseases of the Ministry of Education, Sichuan University, Chengdu 610041, China
| | - Y Wang
- Department of Obstetrics and Gynecology, West China Second Hospital, Sichuan University, Chengdu 610041, China.,Key Laboratory of Birth Defects and Related Gynecological Diseases of the Ministry of Education, Sichuan University, Chengdu 610041, China
| | - H Liu
- Department of Obstetrics and Gynecology, West China Second Hospital, Sichuan University, Chengdu 610041, China.,Key Laboratory of Birth Defects and Related Gynecological Diseases of the Ministry of Education, Sichuan University, Chengdu 610041, China
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Juraleviciute M, Nsengimana J, Newton-Bishop J, Hendriks GJ, Slipicevic A. MX2 mediates establishment of interferon response profile, regulates XAF1, and can sensitize melanoma cells to targeted therapy. Cancer Med 2021; 10:2840-2854. [PMID: 33734579 PMCID: PMC8026919 DOI: 10.1002/cam4.3846] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 02/02/2021] [Accepted: 02/23/2021] [Indexed: 01/05/2023] Open
Abstract
MX2 is an interferon inducible gene that is mostly known for its antiviral activity. We have previously demonstrated that MX2 is also associated with the tumorigenesis process in melanoma. However, it remains unknown which molecular mechanisms are regulated by MX2 in response to interferon signaling in this disease. Here, we report that MX2 is necessary for the establishment of an interferon‐induced transcriptional profile partially through regulation of STAT1 phosphorylation and other interferon‐related downstream factors, including proapoptotic tumor suppressor XAF1. MX2 and XAF1 expression tightly correlate in both cultured melanoma cell lines and in patient‐derived primary and metastatic tumors, where they also are significantly related with survival. MX2 mediates IFN growth‐inhibitory signals in both XAF1 dependent and independent ways and in a cell type and context‐dependent manner. Higher MX2 expression renders melanoma cells more sensitive to targeted therapy drugs such as vemurafenib and trametinib; however, this effect is XAF1 independent. In summary, we uncovered a new mechanism in the complex regulation of interferon signaling in melanoma that can influence both survival and response to therapy.
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Affiliation(s)
- Marina Juraleviciute
- Department of Pathology, Oslo University Hospital, Oslo, Norway.,Institute for Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Jérémie Nsengimana
- Faculty of Medical Sciences, Population Health Sciences Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Julia Newton-Bishop
- Division of Haematology and Immunology, Institute of Medical Research at St James's, University of Leeds, Leeds, UK
| | - Gert J Hendriks
- Department of Cell and Molecular Biology, Karolinska Institutet, Stockholm, Sweden
| | - Ana Slipicevic
- Department of Pathology, Oslo University Hospital, Oslo, Norway
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32
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Sun S, Wu H, Wu X, You Z, Jiang Y, Liang X, Chen Z, Zhang Y, Wei W, Jiang Y, Chen Y, Song Y, Pang D. Silencing of PGK1 Promotes Sensitivity to Paclitaxel Treatment by Upregulating XAF1-Mediated Apoptosis in Triple-Negative Breast Cancer. Front Oncol 2021; 11:535230. [PMID: 33747900 PMCID: PMC7969978 DOI: 10.3389/fonc.2021.535230] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Accepted: 02/08/2021] [Indexed: 12/31/2022] Open
Abstract
Objective: Triple negative breast cancer (TNBC) is known to have aggressive clinical course and a high risk of recurrence. Given the lack of effective targeted therapy options, paclitaxel-based chemotherapy is still the primary option for TNBC patients. However, patients who fail to achieve a complete response during neoadjuvant chemotherapy may be mainly due to sensitivity and resistance to chemotherapy. Thus, we concentrated the present research on the role of PGK1 in the sensitivity to paclitaxel treatment and the possible underlying mechanisms in TNBC. Methods: After exposure to paclitaxel, a cell viability analysis was made to investigate the influence of PGK1 silencing on cell death. The effect of PGK1 on apoptosis induced by paclitaxel treatment was examined in vitro by flow cytometry cell apoptosis assays. Western blotting was performed to examine the impact of PGK1 on paclitaxel-induced apoptosis. The correlation of PGK1 with apoptosis-associated protein X-linked inhibitor of apoptosis (XIAP)-associated factor 1 (XAF1) was analyzed in 39 specimens by immunohistochemistry analysis. Results: We observed that silencing PGK1 sensitized triple-negative breast cancer (TNBC) cell lines to paclitaxel treatment as a result of increased drug-induced apoptosis. Furthermore, mechanistic investigations suggested that XAF1 was increased in PGK1-knockdown cells along with the expression of the apoptotic proteins including cleaved caspase-3 and Bax. Immunohistochemistry analysis showed that PGK1 was negatively related to XAF1. Moreover, we found that downregulation of XAF1 reduced paclitaxel-induced apoptosis in PGK1-silenced triple-negative cell lines. Conclusion: Our results identified PGK1 as a potential biomarker for the treatment of TNBC, and inhibition of PGK1 expression might represent a novel strategy to sensitize TNBC to paclitaxel treatment.
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Affiliation(s)
- Shanshan Sun
- Department of Breast Surgery, Harbin Medical University Cancer Hospital, Harbin, China
| | - Hao Wu
- Sino-Russian Medical Research Center, Heilongjiang Academy of Medical Sciences, Harbin, China
| | - Xiaohong Wu
- Department of Anesthesiology, Harbin Medical University Cancer Hospital, Harbin, China
| | - Zilong You
- Department of Breast Surgery, Harbin Medical University Cancer Hospital, Harbin, China
| | - Yang Jiang
- Department of Pathology, Harbin Medical University Cancer Hospital, Harbin, China
| | - Xiaoshuan Liang
- Department of Breast Surgery, Harbin Medical University Cancer Hospital, Harbin, China
| | - Zhuo Chen
- Department of Anesthesiology, Harbin Medical University Cancer Hospital, Harbin, China
| | - Ye Zhang
- Department of Anesthesiology, Ningbo Medical Treatment Center Li Huili Hospital, Ningbo, China
| | - Wei Wei
- Department of Breast Surgery, Harbin Medical University Cancer Hospital, Harbin, China
| | - Yongdong Jiang
- Department of Breast Surgery, Harbin Medical University Cancer Hospital, Harbin, China
| | - Yanbo Chen
- Department of Breast Surgery, Harbin Medical University Cancer Hospital, Harbin, China
| | - Yanni Song
- Department of Breast Surgery, Harbin Medical University Cancer Hospital, Harbin, China
| | - Da Pang
- Department of Breast Surgery, Harbin Medical University Cancer Hospital, Harbin, China
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Ray A, Kunhiraman H, Perera RJ. The Paradoxical Behavior of microRNA-211 in Melanomas and Other Human Cancers. Front Oncol 2021; 10:628367. [PMID: 33628737 PMCID: PMC7897698 DOI: 10.3389/fonc.2020.628367] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 12/21/2020] [Indexed: 01/27/2023] Open
Abstract
Cancer initiation, progression, and metastasis leverage many regulatory agents, such as signaling molecules, transcription factors, and regulatory RNA molecules. Among these, regulatory non-coding RNAs have emerged as molecules that control multiple cancer types and their pathologic properties. The human microRNA-211 (MIR211) is one such molecule, which affects several cancer types, including melanoma, glioblastoma, lung adenocarcinomas, breast, ovarian, prostate, and colorectal carcinoma. Previous studies suggested that in certain tumors MIR211 acts as a tumor suppressor while in others it behaves as an oncogenic regulator. Here we summarize the known molecular genetic mechanisms that regulate MIR211 gene expression and molecular pathways that are in turn controlled by MIR211 itself. We discuss how cellular and epigenetic contexts modulate the biological effects of MIR211, which exhibit pleiotropic effects. For example, up-regulation of MIR211 expression down-regulates Warburg effect in melanoma tumor cells associated with an inhibition of the growth of human melanoma cells in vitro, and yet these conditions robustly increase tumor growth in xenografted mice. Signaling through the DUSP6-ERK5 pathway is modulated by MIR211 in BRAFV600E driven melanoma tumors, and this function is involved in the resistance of tumor cells to the BRAF inhibitor, Vemurafenib. We discuss several alternate but testable models, involving stochastic cell-to-cell expression heterogeneity due to multiple equilibria involving feedback circuits, intracellular communication, and genetic variation at miRNA target sties, to reconcile the paradoxical effects of MIR211 on tumorigenesis. Understanding the precise role of this miRNA is crucial to understanding the genetic basis of melanoma as well as the other cancer types where this regulatory molecule has important influences. We hope this review will inspire novel directions in this field.
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Affiliation(s)
- Animesh Ray
- Riggs School of Applied Life Sciences, Keck Graduate Institute, Claremont, CA, United States
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA, United States
| | - Haritha Kunhiraman
- Cancer & Blood Disorder Institute, Johns Hopkins All Children’s Hospital, South, St. Petersburg, FL, United States
| | - Ranjan J. Perera
- Cancer & Blood Disorder Institute, Johns Hopkins All Children’s Hospital, South, St. Petersburg, FL, United States
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, School of Medicine, Johns Hopkins University, Baltimore, MD, United States
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Abstract
The p53 protein is a transcription factor that prevents tumors from developing. In spontaneous and inherited cancers there are many different missense mutations in the DNA binding domain of the TP53 gene that contributes to tumor formation. These mutations produce a wide distribution in the transcriptional capabilities of the mutant p53 proteins with over four logs differences in the efficiencies of forming cancers in many diverse tissue types. These inherited and spontaneous TP53 mutations produce proteins that interact with both genetic and epigenetic cellular modifiers of p53 function and their inherited polymorphisms to produce a large number of diverse phenotypes in individual patients. This manuscript reviews these variables and discusses how the combinations of TP53 genetic alterations interact with genetic polymorphisms, epigenetic alterations, and environmental factors to begin predicting and modifying patient outcomes and provide a better understanding for new therapeutic opportunities.
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Affiliation(s)
- Arnold J. Levine
- grid.78989.370000 0001 2160 7918Institute for Advanced Study, Princeton, NJ USA
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35
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RING-finger protein 166 plays a novel pro-apoptotic role in neurotoxin-induced neurodegeneration via ubiquitination of XIAP. Cell Death Dis 2020; 11:939. [PMID: 33130818 PMCID: PMC7603511 DOI: 10.1038/s41419-020-03145-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 10/14/2020] [Accepted: 10/16/2020] [Indexed: 12/16/2022]
Abstract
The dopaminergic neurotoxin, 6-hydroxydopamine (6-OHDA), has been widely utilized to establish experimental models of Parkinson disease and to reveal the critical molecules and pathway underlying neuronal death. The profile of gene expression changes following 6-OHDA treatment of MN9D dopaminergic neuronal cells was investigated using a TwinChip Mouse-7.4K microarray. Functional clustering of altered sets of genes identified RING-finger protein 166 (RNF166). RNF166 is composed of an N-terminal RING domain and C-terminal ubiquitin interaction motif. RNF166 localized in the cytosol and nucleus. At the tissue level, RNF166 was widely expressed in the central nervous system and peripheral organs. In the cerebral cortex, its expression decreased over time. In certain conditions, overexpression of RNF166 accelerates the naturally occurring neuronal death and 6-OHDA-induced MN9D cell death as determined by TUNEL and annexin-V staining, and caspase activation. Consequently, 6-OHDA-induced apoptotic cell death was attenuated in RNF166-knockdown cells. In an attempt to elucidate the mechanism underlying this pro-apoptotic activity, binding protein profiles were assessed using the yeast two-hybrid system. Among several potential binding candidates, RNF166 was shown to interact with the cytoplasmic X-linked inhibitor of apoptosis (XIAP), inducing ubiquitin-dependent degradation of XIAP and eventually accelerating caspase activation following 6-OHDA treatment. RNF166's interaction with and resulting inhibition of the XIAP anti-caspase activity was further enhanced by XIAP-associated factor-1 (XAF-1). Consequently, depletion of RNF166 suppressed 6-OHDA-induced caspase activation and apoptotic cell death, which was reversed by XIAP knockdown. In summary, our data suggest that RNF166, a novel E3 ligase, plays a pro-apoptotic role via caspase activation in neuronal cells.
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36
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Sugiura M, Sato H, Kanesaka M, Imamura Y, Sakamoto S, Ichikawa T, Kaneda A. Epigenetic modifications in prostate cancer. Int J Urol 2020; 28:140-149. [PMID: 33111429 DOI: 10.1111/iju.14406] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 09/27/2020] [Indexed: 12/18/2022]
Abstract
Prostate cancer is a major cause of cancer-related deaths among men worldwide. In addition to genomic alterations, epigenetic alterations accumulated in prostate cancer have been elucidated. While aberrant deoxyribonucleic acid hypermethylation in promoter CpG islands inactivates crucial genes associated with deoxyribonucleic acid repair, cell cycle, apoptosis or cell adhesion, aberrant deoxyribonucleic acid hypomethylation can lead to oncogene activation. Acetylation of histone is also deregulated in prostate cancer, which could cause aberrant super-enhancer formation and activation of genes associated with cancer development. Deregulations of histone methylation, such as an increase of trimethylation at position 27 of histone H3 by enhancer of zeste homolog2 overexpression, or other modifications, such as phosphorylation and ubiquitination, are also involved in prostate cancer development, and inhibitors targeting these epigenomic aberrations might be novel therapeutic strategies. In this review, we provide an overview of epigenetic alterations in the development and progression of prostate cancer, focusing on deoxyribonucleic acid methylation and histone modifications.
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Affiliation(s)
- Masahiro Sugiura
- Departments of, Department of, Urology, Chiba University Graduate School of Medicine, Chiba, Japan.,Department of, Molecular Oncology, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Hiroaki Sato
- Departments of, Department of, Urology, Chiba University Graduate School of Medicine, Chiba, Japan.,Department of, Molecular Oncology, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Manato Kanesaka
- Departments of, Department of, Urology, Chiba University Graduate School of Medicine, Chiba, Japan.,Department of, Molecular Oncology, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Yusuke Imamura
- Departments of, Department of, Urology, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Shinichi Sakamoto
- Departments of, Department of, Urology, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Tomohiko Ichikawa
- Departments of, Department of, Urology, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Atsushi Kaneda
- Department of, Molecular Oncology, Chiba University Graduate School of Medicine, Chiba, Japan
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37
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Emerging roles of HSF1 in cancer: Cellular and molecular episodes. Biochim Biophys Acta Rev Cancer 2020; 1874:188390. [PMID: 32653364 DOI: 10.1016/j.bbcan.2020.188390] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 06/28/2020] [Accepted: 07/04/2020] [Indexed: 12/16/2022]
Abstract
Heat shock factor 1 (HSF1) systematically guards proteome stability and proteostasis by regulating the expression of heat shock protein (HSP), thus rendering cancer cells addicted to HSF1. The non-canonical transcriptional programme driven by HSF1, which is distinct from the heat shock response (HSR), plays an indispensable role in the initiation, promotion and progression of cancer. Therefore, HSF1 is widely exploited as a potential therapeutic target in a broad spectrum of cancers. Various molecules and signals in the cell jointly regulate the activation and attenuation of HSF1. The high-level expression of HSF1 in tumours and its relationship with patient prognosis imply that HSF1 can be used as a biomarker for patient prognosis and a target for cancer treatment. In this review, we discuss the newly identified mechanisms of HSF1 activation and regulation, the diverse functions of HSF1 in tumourigenesis, and the feasibility of using HSF1 as a prognostic marker. Disrupting cancer cell proteostasis by targeting HSF1 represents a novel anti-cancer therapeutic strategy.
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38
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Pinto EM, Figueiredo BC, Chen W, Galvao HC, Formiga MN, Fragoso MCB, Ashton-Prolla P, Ribeiro EM, Felix G, Costa TE, Savage SA, Yeager M, Palmero EI, Volc S, Salvador H, Fuster-Soler JL, Lavarino C, Chantada G, Vaur D, Odone-Filho V, Brugières L, Else T, Stoffel EM, Maxwell KN, Achatz MI, Kowalski L, de Andrade KC, Pappo A, Letouze E, Latronico AC, Mendonca BB, Almeida MQ, Brondani VB, Bittar CM, Soares EW, Mathias C, Ramos CR, Machado M, Zhou W, Jones K, Vogt A, Klincha PP, Santiago KM, Komechen H, Paraizo MM, Parise IZ, Hamilton KV, Wang J, Rampersaud E, Clay MR, Murphy AJ, Lalli E, Nichols KE, Ribeiro RC, Rodriguez-Galindo C, Korbonits M, Zhang J, Thomas MG, Connelly JP, Pruett-Miller S, Diekmann Y, Neale G, Wu G, Zambetti GP. XAF1 as a modifier of p53 function and cancer susceptibility. SCIENCE ADVANCES 2020; 6:eaba3231. [PMID: 32637605 PMCID: PMC7314530 DOI: 10.1126/sciadv.aba3231] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Accepted: 05/14/2020] [Indexed: 05/15/2023]
Abstract
Cancer risk is highly variable in carriers of the common TP53-R337H founder allele, possibly due to the influence of modifier genes. Whole-genome sequencing identified a variant in the tumor suppressor XAF1 (E134*/Glu134Ter/rs146752602) in a subset of R337H carriers. Haplotype-defining variants were verified in 203 patients with cancer, 582 relatives, and 42,438 newborns. The compound mutant haplotype was enriched in patients with cancer, conferring risk for sarcoma (P = 0.003) and subsequent malignancies (P = 0.006). Functional analyses demonstrated that wild-type XAF1 enhances transactivation of wild-type and hypomorphic TP53 variants, whereas XAF1-E134* is markedly attenuated in this activity. We propose that cosegregation of XAF1-E134* and TP53-R337H mutations leads to a more aggressive cancer phenotype than TP53-R337H alone, with implications for genetic counseling and clinical management of hypomorphic TP53 mutant carriers.
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Affiliation(s)
- Emilia M. Pinto
- Department of Pathology, St. Jude Children’s Research Hospital, Memphis, TN, USA
- Corresponding author. (E.M.P.); (G.P.Z.)
| | | | - Wenan Chen
- Center for Applied Bioinformatics, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | | | | | | | | | | | | | | | | | | | | | - Sahlua Volc
- Hospital de Cancer de Barretos, Barretos, SP, Brazil
| | - Hector Salvador
- Pediatric Oncology Department, Sant Joan de Deu Hospital, Barcelona, Spain
| | | | - Cinzia Lavarino
- Pediatric Oncology Department, Sant Joan de Deu Hospital, Barcelona, Spain
| | - Guillermo Chantada
- Department of Global Pediatric Medicine, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - Dominique Vaur
- Comprehensive Cancer Center François Baclesse, Caen, France
| | - Vicente Odone-Filho
- ITACI–Instituto de Tratamento do Câncer Infantil do Departamento de Pediatria da Faculdade de Medicina da Universidade de São Paulo, Sao Paulo, SP, Brazil
| | | | | | | | - Kara N. Maxwell
- Perelman School of Medicine University of Pennsylvania, Philadelphia, PA, USA
| | | | | | | | - Alberto Pappo
- Department of Oncology, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - Eric Letouze
- Centre de Recherche des Cordeliers, Paris, France
| | | | | | | | | | - Camila M. Bittar
- Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | | | | | | | | | - Weiyin Zhou
- National Cancer Institute, Rockville, MD, USA
| | | | | | | | | | - Heloisa Komechen
- Instituto de Pesquisa Pelé Pequeno Principe, Curitiba, PR, Brazil
| | | | - Ivy Z.S. Parise
- Instituto de Pesquisa Pelé Pequeno Principe, Curitiba, PR, Brazil
| | - Kayla V. Hamilton
- Department of Oncology, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - Jinling Wang
- Department of Pathology, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - Evadnie Rampersaud
- Center for Applied Bioinformatics, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - Michael R. Clay
- Department of Pathology, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - Andrew J. Murphy
- Department of Surgery, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - Enzo Lalli
- Institut de Pharmacologie Moléculaire et Cellulaire, Valbonne, France
| | - Kim E. Nichols
- Department of Oncology, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - Raul C. Ribeiro
- Department of Oncology, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - Carlos Rodriguez-Galindo
- Department of Global Pediatric Medicine, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - Marta Korbonits
- Endocrinology, William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Jinghui Zhang
- Center for Applied Bioinformatics, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - Mark G. Thomas
- Research Department of Genetics, Evolution and Environment, University College London, London, UK
| | - Jon P. Connelly
- Center for Advanced Genome Engineering, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - Shondra Pruett-Miller
- Center for Advanced Genome Engineering, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - Yoan Diekmann
- Research Department of Genetics, Evolution and Environment, University College London, London, UK
| | - Geoffrey Neale
- Hartwell Center for Bioinformatics and Biotechnology, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Gang Wu
- Center for Applied Bioinformatics, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - Gerard P. Zambetti
- Department of Pathology, St. Jude Children’s Research Hospital, Memphis, TN, USA
- Corresponding author. (E.M.P.); (G.P.Z.)
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Xie P, Mo JL, Liu JH, Li X, Tan LM, Zhang W, Zhou HH, Liu ZQ. Pharmacogenomics of 5-fluorouracil in colorectal cancer: review and update. Cell Oncol (Dordr) 2020; 43:989-1001. [PMID: 32474853 DOI: 10.1007/s13402-020-00529-1] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 04/20/2020] [Accepted: 04/27/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Colorectal cancer (CRC) is a disease with high morbidity and mortality rates. 5-fluorouracil (5-FU) is the first-line recommended drug for chemotherapy in patients with CRC, and it has a good effect on a variety of other solid tumors as well. Unfortunately, however, due to the emergence of drug resistance the effectiveness of treatment may be greatly reduced. In the past decade, major progress has been made in the field of 5-FU drug resistance in terms of molecular mechanisms, pre-clinical (animal) models and clinical trials. CONCLUSIONS In this article we systematically review and update current knowledge on 5-FU pharmacogenomics related to drug uptake and activation, the expression and activity of target enzymes (DPD, TS and MTHFR) and key signaling pathways in CRC. Furthermore, a summary of drug combination strategies aimed at targeting specific genes and/or pathways to reverse 5-FU resistance is provided. Based on this, we suggest that causal relationships between genes, pathways and drug sensitivity should be systematically considered from a multidimensional perspective. In the design of research methods, emerging technologies such as CRISPR-Cas, TALENS and patient-derived xenograft models should be applied as far as possible to improve the accuracy of clinically relevant results.
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Affiliation(s)
- Pan Xie
- Department of Clinical Pharmacology and National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, 410008, Changsha, People's Republic of China.,Institute of Clinical Pharmacology, Hunan Key Laboratory of Pharmacogenetics, Central South University, 410078, Changsha, People's Republic of China
| | - Jun-Luan Mo
- Shenzhen Center for Chronic Disease Control, 518020, Shenzhen, People's Republic of China
| | - Jin-Hong Liu
- Shenzhen Center for Chronic Disease Control, 518020, Shenzhen, People's Republic of China
| | - Xi Li
- Department of Clinical Pharmacology and National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, 410008, Changsha, People's Republic of China.,Institute of Clinical Pharmacology, Hunan Key Laboratory of Pharmacogenetics, Central South University, 410078, Changsha, People's Republic of China
| | - Li-Ming Tan
- Department of Pharmacy, The Second People's Hospital of Huaihua City, 418000, Huaihua, People's Republic of China
| | - Wei Zhang
- Department of Clinical Pharmacology and National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, 410008, Changsha, People's Republic of China.,Institute of Clinical Pharmacology, Hunan Key Laboratory of Pharmacogenetics, Central South University, 410078, Changsha, People's Republic of China
| | - Hong-Hao Zhou
- Department of Clinical Pharmacology and National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, 410008, Changsha, People's Republic of China.,Institute of Clinical Pharmacology, Hunan Key Laboratory of Pharmacogenetics, Central South University, 410078, Changsha, People's Republic of China
| | - Zhao-Qian Liu
- Department of Clinical Pharmacology and National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, 410008, Changsha, People's Republic of China. .,Institute of Clinical Pharmacology, Hunan Key Laboratory of Pharmacogenetics, Central South University, 410078, Changsha, People's Republic of China.
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40
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Zhou L, Zhang Y, Wang Y, Zhang M, Sun W, Dai T, Wang A, Wu X, Zhang S, Wang S, Zhou F. A Dual Role of Type I Interferons in Antitumor Immunity. ACTA ACUST UNITED AC 2020; 4:e1900237. [PMID: 33245214 DOI: 10.1002/adbi.201900237] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 02/17/2020] [Accepted: 02/20/2020] [Indexed: 12/12/2022]
Abstract
Type I interferons (IFN-Is) are a family of cytokines that exert direct antiviral effects and regulate innate and adaptive immune responses through direct and indirect mechanisms. It is generally believed that IFN-Is repress tumor development via restricting tumor proliferation and inducing antitumor immune responses. However, recent emerging evidence suggests that IFN-Is play a dual role in antitumor immunity. That is, in the early stage of tumorigenesis, IFN-Is promote the antitumor immune response by enhancing antigen presentation in antigen-presenting cells and activating CD8+ T cells. However, in the late stage of tumor progression, persistent expression of IFN-Is induces the expression of immunosuppressive factors (PD-L1, IDO, and IL-10) on the surface of dendritic cells and other bone marrow cells and inhibits their antitumor immunity. This review outlines these dual functions of IFN-Is in antitumor immunity and elucidates the involved mechanisms, as well as their applications in tumor therapy.
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Affiliation(s)
- Lili Zhou
- Jiangsu Key Laboratory of Infection and Immunity, The Institutes of Biology and Medical Sciences, Soochow University, Suzhou, 215123, P. R. China
| | - Yuqi Zhang
- Jiangsu Key Laboratory of Infection and Immunity, The Institutes of Biology and Medical Sciences, Soochow University, Suzhou, 215123, P. R. China
| | - Yongqiang Wang
- Jiangsu Key Laboratory of Infection and Immunity, The Institutes of Biology and Medical Sciences, Soochow University, Suzhou, 215123, P. R. China
| | - Meirong Zhang
- Jiangsu Key Laboratory of Infection and Immunity, The Institutes of Biology and Medical Sciences, Soochow University, Suzhou, 215123, P. R. China
| | - Wenhuan Sun
- Jiangsu Key Laboratory of Infection and Immunity, The Institutes of Biology and Medical Sciences, Soochow University, Suzhou, 215123, P. R. China
| | - Tong Dai
- Jiangsu Key Laboratory of Infection and Immunity, The Institutes of Biology and Medical Sciences, Soochow University, Suzhou, 215123, P. R. China
| | - Aijun Wang
- Department of Surgery, School of Medicine, UC Davis, Davis, CA, 95817, USA
| | - Xiaojin Wu
- Department of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, 215006, China
| | - Suping Zhang
- Guangdong Key Laboratory for Genome Stability and Human Disease Prevention, Department of Pharmacology, Base for international Science and Technology Cooperation: Carson Cancer Stem Cell Vaccines R&D Center, International Cancer Center, Shenzhen University Health Science Center, Shenzhen, 518055, China
| | - Shuai Wang
- Jiangsu Key Laboratory of Infection and Immunity, The Institutes of Biology and Medical Sciences, Soochow University, Suzhou, 215123, P. R. China
| | - Fangfang Zhou
- Jiangsu Key Laboratory of Infection and Immunity, The Institutes of Biology and Medical Sciences, Soochow University, Suzhou, 215123, P. R. China
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Cheung CHA, Chang YC, Lin TY, Cheng SM, Leung E. Anti-apoptotic proteins in the autophagic world: an update on functions of XIAP, Survivin, and BRUCE. J Biomed Sci 2020; 27:31. [PMID: 32019552 PMCID: PMC7001279 DOI: 10.1186/s12929-020-0627-5] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Accepted: 01/27/2020] [Indexed: 12/22/2022] Open
Abstract
X-linked inhibitor of apoptosis protein (XIAP), survivin, and BRUCE are members of the inhibitor-of-apoptosis protein (IAP) family known for their inhibitory effects on caspase activity and dysregulation of these molecules has widely been shown to cause embryonic defects and to promote tumorigenesis in human. Besides the anti-apoptotic functions, recent discoveries have revealed that XIAP, survivin, and BRUCE also exhibit regulatory functions for autophagy in cells. As the role of autophagy in human diseases has already been discussed extensively in different reviews; in this review, we will discuss the emerging autophagic role of XIAP, survivin, and BRUCE in cancer cells. We also provide an update on the anti-apoptotic functions and the roles in maintaining DNA integrity of these molecules. Second mitochondria-derived activator of caspases (Smac) is a pro-apoptotic protein and IAPs are the molecular targets of various Smac mimetics currently under clinical trials. Better understanding on the functions of XIAP, survivin, and BRUCE can enable us to predict possible side effects of these drugs and to design a more “patient-specific” clinical trial for Smac mimetics in the future.
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Affiliation(s)
- Chun Hei Antonio Cheung
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, No. 1 University Road, Tainan, Taiwan. .,Department of Pharmacology, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
| | - Yung-Chieh Chang
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, No. 1 University Road, Tainan, Taiwan
| | - Tzu-Yu Lin
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, No. 1 University Road, Tainan, Taiwan
| | - Siao Muk Cheng
- National Institute of Cancer Research, National Health Research Institutes (NHRI), Tainan, Taiwan
| | - Euphemia Leung
- Auckland Cancer Society Research Centre, University of Auckland, 85 Park Rd, Grafton, Auckland, 1023, New Zealand.,Maurice Wilkins Centre for Molecular Biodiscovery, University of Auckland, Symonds Street, Auckland, 1010, New Zealand
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Karali M, Guadagnino I, Marrocco E, De Cegli R, Carissimo A, Pizzo M, Casarosa S, Conte I, Surace EM, Banfi S. AAV-miR-204 Protects from Retinal Degeneration by Attenuation of Microglia Activation and Photoreceptor Cell Death. MOLECULAR THERAPY. NUCLEIC ACIDS 2019; 19:144-156. [PMID: 31837604 PMCID: PMC6920266 DOI: 10.1016/j.omtn.2019.11.005] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 11/07/2019] [Accepted: 11/07/2019] [Indexed: 01/15/2023]
Abstract
Inherited retinal diseases (IRDs) represent a frequent cause of genetic blindness. Their high genetic heterogeneity hinders the application of gene-specific therapies to the vast majority of patients. We recently demonstrated that the microRNA miR-204 is essential for retinal function, although the underlying molecular mechanisms remain poorly understood. Here, we investigated the therapeutic potential of miR-204 in IRDs. We subretinally delivered an adeno-associated viral (AAV) vector carrying the miR-204 precursor to two genetically different IRD mouse models. The administration of AAV-miR-204 preserved retinal function in a mouse model for a dominant form of retinitis pigmentosa (RHO-P347S). This was associated with a reduction of apoptotic photoreceptor cells and with a better preservation of photoreceptor marker expression. Transcriptome analysis showed that miR-204 shifts expression profiles of transgenic retinas toward those of healthy retinas by the downregulation of microglia activation and photoreceptor cell death. Delivery of miR-204 exerted neuroprotective effects also in a mouse model of Leber congenital amaurosis, due to mutations of the Aipl1 gene. Our study highlights the mutation-independent therapeutic potential of AAV-miR204 in slowing down retinal degeneration in IRDs and unveils the previously unreported role of this miRNA in attenuating microglia activation and photoreceptor cell death.
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Affiliation(s)
- Marianthi Karali
- Telethon Institute of Genetics and Medicine, via Campi Flegrei 34, 80078 Pozzuoli (NA), Italy; Department of Precision Medicine, University of Campania 'Luigi Vanvitelli,' via Luigi De Crecchio 7, 80138 Naples (NA), Italy
| | - Irene Guadagnino
- Telethon Institute of Genetics and Medicine, via Campi Flegrei 34, 80078 Pozzuoli (NA), Italy
| | - Elena Marrocco
- Telethon Institute of Genetics and Medicine, via Campi Flegrei 34, 80078 Pozzuoli (NA), Italy
| | - Rossella De Cegli
- Telethon Institute of Genetics and Medicine, via Campi Flegrei 34, 80078 Pozzuoli (NA), Italy
| | - Annamaria Carissimo
- Telethon Institute of Genetics and Medicine, via Campi Flegrei 34, 80078 Pozzuoli (NA), Italy
| | - Mariateresa Pizzo
- Telethon Institute of Genetics and Medicine, via Campi Flegrei 34, 80078 Pozzuoli (NA), Italy
| | - Simona Casarosa
- Department CIBIO, University of Trento, via Sommarive 9, 38123 Trento, Italy; CNR Neuroscience Institute, via G. Moruzzi 1, 56124 Pisa, Italy
| | - Ivan Conte
- Telethon Institute of Genetics and Medicine, via Campi Flegrei 34, 80078 Pozzuoli (NA), Italy
| | - Enrico Maria Surace
- Telethon Institute of Genetics and Medicine, via Campi Flegrei 34, 80078 Pozzuoli (NA), Italy; Department of Translational Medicine, 'Federico II' University, via Pansini 5, 80131 Naples, Italy.
| | - Sandro Banfi
- Telethon Institute of Genetics and Medicine, via Campi Flegrei 34, 80078 Pozzuoli (NA), Italy; Department of Precision Medicine, University of Campania 'Luigi Vanvitelli,' via Luigi De Crecchio 7, 80138 Naples (NA), Italy.
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miR-221 Augments TRAIL-Mediated Apoptosis in Prostate Cancer Cells by Inducing Endogenous TRAIL Expression and Targeting the Functional Repressors SOCS3 and PIK3R1. BIOMED RESEARCH INTERNATIONAL 2019; 2019:6392748. [PMID: 31828111 PMCID: PMC6881584 DOI: 10.1155/2019/6392748] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 07/13/2019] [Accepted: 08/03/2019] [Indexed: 12/26/2022]
Abstract
miR-221 is regarded as an oncogene in many malignancies, and miR-221-mediated resistance towards TRAIL was one of the first oncogenic roles shown for this small noncoding RNA. In contrast, miR-221 is downregulated in prostate cancer (PCa), thereby implying a tumour suppressive function. By using proliferation and apoptosis assays, we show a novel feature of miR-221 in PCa cells: instead of inducing TRAIL resistance, miR-221 sensitized cells towards TRAIL-induced proliferation inhibition and apoptosis induction. Partially responsible for this effect was the interferon-mediated gene signature, which among other things contained an endogenous overexpression of the TRAIL encoding gene TNFSF10. This TRAIL-friendly environment was provoked by downregulation of the established miR-221 target gene SOCS3. Moreover, we introduced PIK3R1 as a target gene of miR-221 in PCa cells. Proliferation assays showed that siRNA-mediated downregulation of SOCS3 and PIK3R1 mimicked the effect of miR-221 on TRAIL sensitivity. Finally, Western blotting experiments confirmed lower amounts of phospho-Akt after siRNA-mediated downregulation of PIK3R1 in PC3 cells. Our results further support the tumour suppressing role of miR-221 in PCa, since it sensitises PCa cells towards TRAIL by regulating the expression of the oncogenes SOCS3 and PIK3R1. Given the TRAIL-inhibiting effect of miR-221 in various cancer entities, our results suggest that the influence of miR-221 on TRAIL-mediated apoptosis is highly context- and entity-dependent.
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Millet-Boureima C, Chingle R, Lubell WD, Gamberi C. Cyst Reduction in a Polycystic Kidney Disease Drosophila Model Using Smac Mimics. Biomedicines 2019; 7:biomedicines7040082. [PMID: 31635379 PMCID: PMC6966561 DOI: 10.3390/biomedicines7040082] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2019] [Revised: 10/11/2019] [Accepted: 10/15/2019] [Indexed: 12/13/2022] Open
Abstract
Autosomal dominant polycystic kidney disease (ADPKD) is an inherited malady affecting 12.5 million people worldwide. Therapeutic options to treat PKD are limited, due in part to lack of precise knowledge of underlying pathological mechanisms. Mimics of the second mitochondria-derived activator of caspases (Smac) have exhibited activity as antineoplastic agents and reported recently to ameliorate cysts in a murine ADPKD model, possibly by differentially targeting cystic cells and sparing the surrounding tissue. A first-in-kind Drosophila PKD model has now been employed to probe further the activity of novel Smac mimics. Substantial reduction of cystic defects was observed in the Malpighian (renal) tubules of treated flies, underscoring mechanistic conservation of the cystic pathways and potential for efficient testing of drug prototypes in this PKD model. Moreover, the observed differential rescue of the anterior and posterior tubules overall, and within their physiologically diverse intermediate and terminal regions implied a nuanced response in distinct tubular regions contingent upon the structure of the Smac mimic. Knowledge gained from studying Smac mimics reveals the capacity for the Drosophila model to precisely probe PKD pharmacology highlighting the value for such critical evaluation of factors implicated in renal function and pathology.
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Affiliation(s)
| | - Ramesh Chingle
- Département de Chimie, Université de Montréal, Montreal, QC H3T 1J4, Canada.
| | - William D Lubell
- Département de Chimie, Université de Montréal, Montreal, QC H3T 1J4, Canada.
| | - Chiara Gamberi
- Biology Department, Concordia University, Montreal, QC H4B 1R6, Canada.
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Wu Q, Berglund AE, Wang D, MacAulay RJ, Mulé JJ, Etame AB. Paradoxical epigenetic regulation of XAF1 mediates plasticity towards adaptive resistance evolution in MGMT-methylated glioblastoma. Sci Rep 2019; 9:14072. [PMID: 31575897 PMCID: PMC6773736 DOI: 10.1038/s41598-019-50489-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Accepted: 09/11/2019] [Indexed: 12/19/2022] Open
Abstract
Epigenetic regulation of O6-alkylguanine DNA alkyltransferase (MGMT) is surrogate of intrinsic resistance to temozolomide (TMZ). However, mechanisms associated with adaptive resistance evolution of glioblastoma (GBM) relative to MGMT methylation remain unclear. We hereby report a paradoxical yet translational epigenetic regulation of plasticity towards adaptive resistance in GBM. Based on an adaptive resistance model of GBM cells with differential MGMT methylation profiles, MGMT-hypermethylation enhanced genetic and phenotypic plasticity towards adaptive resistance to TMZ while MGMT hypomethylation limited plasticity. The resulting model-associated adaptive resistance gene signature negatively correlated with GBM patient survival. XAF1, a tumor suppressor protein, paradoxically emerged as a mediator of differential plasticities towards adaptive resistance to TMZ through epigenetic regulation. XAF1 promoted resistance both in-vitro and in-vivo. Furthermore, XAF1 expression negatively correlated with XAF1 promoter methylation status, and negatively correlate with GBM patient survival. Collectively, XAF1 appears to have a pradoxical yet translational role in GBM.
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Affiliation(s)
- Qiong Wu
- Departments of Neuro-Oncology, H. Lee Moffitt Cancer Center and Research Institute, 12902 Magnolia Drive, Tampa, FL, 33612, USA
| | - Anders E Berglund
- Departments of Biostatistics and Bioinformatics, H. Lee Moffitt Cancer Center and Research Institute, 12902 Magnolia Drive, Tampa, FL, 33612, USA
| | - Dapeng Wang
- Departments of Neuro-Oncology, H. Lee Moffitt Cancer Center and Research Institute, 12902 Magnolia Drive, Tampa, FL, 33612, USA
| | - Robert J MacAulay
- Departments of Anatomic Pathology, H. Lee Moffitt Cancer Center and Research Institute, 12902 Magnolia Drive, Tampa, FL, 33612, USA
| | - James J Mulé
- Departments of Immunology, H. Lee Moffitt Cancer Center and Research Institute, 12902 Magnolia Drive, Tampa, FL, 33612, USA
| | - Arnold B Etame
- Departments of Neuro-Oncology, H. Lee Moffitt Cancer Center and Research Institute, 12902 Magnolia Drive, Tampa, FL, 33612, USA.
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Shalbaf M, Alase AA, Berekmeri A, Md Yusof MY, Pistolic J, Goodfield MJ, Edward S, Botchkareva NV, Stacey M, Vital EM, Wittmann M. Plucked hair follicles from patients with chronic discoid lupus erythematosus show a disease-specific molecular signature. Lupus Sci Med 2019; 6:e000328. [PMID: 31413850 PMCID: PMC6667780 DOI: 10.1136/lupus-2019-000328] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 04/26/2019] [Accepted: 06/17/2019] [Indexed: 12/22/2022]
Abstract
OBJECTIVE When faced with clinical symptoms of scarring alopecia-the standard diagnostic pathway involves a scalp biopsy which is an invasive and expensive procedure. This project aimed to assess if plucked hair follicles (HFs) containing living epithelial cells can offer a non-invasive approach to diagnosing inflammatory scalp lesions. METHODS Lesional and non-lesional HFs were extracted from the scalp of patients with chronic discoid lupus erythematosus (CDLE), psoriasis and healthy controls. RNA was isolated from plucked anagen HFs and microarray, as well as quantitative real-time PCR was performed. RESULTS Here, we report that gene expression analysis of only a small number of HF plucked from lesional areas of the scalp is sufficient to differentiate CDLE from psoriasis lesions or healthy HF. The expression profile from CDLE HFs coincides with published profiles of CDLE from skin biopsy. Genes that were highly expressed in lesional CDLE corresponded to well-known histopathological diagnostic features of CDLE and included those related to apoptotic cell death, the interferon signature, complement components and CD8+ T-cell immune responses. CONCLUSIONS We therefore propose that information obtained from this non-invasive approach are sufficient to diagnose scalp lupus erythematosus. Once validated in routine clinical settings and compared with other scarring alopecias, this rapid and non-invasive approach will have great potential for paving the way for future diagnosis of inflammatory scalp lesions.
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Affiliation(s)
- Mohammad Shalbaf
- Leeds Institue of Rheumatic and Musculoskeletal Medicine, University of Leeds, Leeds, UK
| | - Adewonuola A Alase
- Leeds Institue of Rheumatic and Musculoskeletal Medicine, University of Leeds, Leeds, UK
| | - Anna Berekmeri
- Leeds Institue of Rheumatic and Musculoskeletal Medicine, University of Leeds, Leeds, UK
- National Institute for Health Research (NIHR) Leeds Biomedical Research Centre (BRC), Leeds Teaching Hospitals, Leeds, UK
| | - Md Yuzaiful Md Yusof
- Leeds Institue of Rheumatic and Musculoskeletal Medicine, University of Leeds, Leeds, UK
- National Institute for Health Research (NIHR) Leeds Biomedical Research Centre (BRC), Leeds Teaching Hospitals, Leeds, UK
| | - Jelena Pistolic
- Genomics Core Facility, European Molecular Biology Laboratory, Heidelberg, Germany
| | | | - Sara Edward
- Department of Histopathology, Leeds Teaching Hospitals NHS Trust, Leeds, UK
| | - Natalia V Botchkareva
- Centre for Skin Sciences, Faculty of Life Sciences, University of Bradford, Bradford, UK
| | - Martin Stacey
- Faculty of Biological Sciences, School of Molecular and Cellular Biology, University of Leeds, Leeds, UK
| | - Edward M Vital
- Leeds Institue of Rheumatic and Musculoskeletal Medicine, University of Leeds, Leeds, UK
- National Institute for Health Research (NIHR) Leeds Biomedical Research Centre (BRC), Leeds Teaching Hospitals, Leeds, UK
| | - Miriam Wittmann
- Leeds Institue of Rheumatic and Musculoskeletal Medicine, University of Leeds, Leeds, UK
- National Institute for Health Research (NIHR) Leeds Biomedical Research Centre (BRC), Leeds Teaching Hospitals, Leeds, UK
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Moon JR, Oh SJ, Lee CK, Chi SG, Kim HJ. TGF-β1 protects colon tumor cells from apoptosis through XAF1 suppression. Int J Oncol 2019; 54:2117-2126. [PMID: 31081052 DOI: 10.3892/ijo.2019.4776] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Accepted: 02/13/2019] [Indexed: 12/28/2022] Open
Abstract
Transforming growth factor-β1 (TGF-β1) is a multifunctional cytokine that functions as a growth suppressor in normal epithelial cells and early stage tumors, but acts as a tumor promoter during malignant progression. However, the molecular basis underlying the conversion of TGF‑β1 function remains largely undefined. X‑linked inhibitor of apoptosis‑associated factor 1 (XAF1) is a pro‑apoptotic tumor suppressor that frequently displays epigenetic inactivation in various types of human malignancies, including colorectal cancer. The present study explored whether the anti‑apoptotic effect of TGF‑β1 is linked to its regulatory effect on XAF1 induction in human colon cancer cells under stressful conditions. The results revealed that TGF‑β1 treatment protected tumor cells from various apoptotic stresses, including 5‑fluorouracil, etoposide and γ‑irradiation. XAF1 expression was activated at the transcriptional level by these apoptotic stresses and TGF‑β1 blocked the stress‑mediated activation of the XAF1 promoter. The study also demonstrated that mitogen‑activated protein kinase kinase inhibition or extracellular signal‑activated kinase (Erk)1/2 depletion induced XAF1 induction, while the activation of K‑Ras (G12C) led to its reduction. In addition, TGF‑β1 blocked the stress‑mediated XAF1 promoter activation and induction of apoptosis. This effect was abrogated if Erk1/2 was depleted, indicating that TGF‑β1 represses XAF1 transcription through Erk activation, thereby protecting tumor cells from apoptotic stresses. These findings point to a novel molecular mechanism underlying the tumor‑promoting function of TGF‑β1, which may be utilized in the development of a novel therapeutic strategy for the treatment of colorectal cancer.
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Affiliation(s)
- Jung Rock Moon
- Department of Internal Medicine, Division of Gastroenterology, Kyung Hee University School of Medicine, Seoul 02447, Republic of Korea
| | - Shin Ju Oh
- Department of Internal Medicine, Division of Gastroenterology, Kyung Hee University School of Medicine, Seoul 02447, Republic of Korea
| | - Chang Kyun Lee
- Department of Internal Medicine, Division of Gastroenterology, Kyung Hee University School of Medicine, Seoul 02447, Republic of Korea
| | - Sung Gil Chi
- Department of Life Sciences, Korea University, Seoul 02841, Republic of Korea
| | - Hyo Jong Kim
- Department of Internal Medicine, Division of Gastroenterology, Kyung Hee University School of Medicine, Seoul 02447, Republic of Korea
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Zhu C, Li B, Frontzek K, Liu Y, Aguzzi A. SARM1 deficiency up-regulates XAF1, promotes neuronal apoptosis, and accelerates prion disease. J Exp Med 2019; 216:743-756. [PMID: 30842236 PMCID: PMC6446871 DOI: 10.1084/jem.20171885] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Revised: 11/27/2018] [Accepted: 01/11/2019] [Indexed: 01/20/2023] Open
Abstract
Zhu et al. show that SARM1 deficiency selectively up-regulates XAF1 expression, which, in turn, promotes prion-induced neuronal death and accelerates prion progression. This study reveals a novel link between SARM1, XAF1, and associated neuronal apoptosis in prion disease. SARM1 (sterile α and HEAT/armadillo motif–containing protein) is a member of the MyD88 (myeloid differentiation primary response gene 88) family, which mediates innate immune responses. Because inactivation of SARM1 prevents various forms of axonal degeneration, we tested whether it might protect against prion-induced neurotoxicity. Instead, we found that SARM1 deficiency exacerbates the progression of prion pathogenesis. This deleterious effect was not due to SARM1-dependent modulation of prion-induced neuroinflammation, since microglial activation, astrogliosis, and brain cytokine profiles were not altered by SARM1 deficiency. Whole-transcriptome analyses indicated that SARM1 deficiency led to strong, selective overexpression of the pro-apoptotic gene XAF1 (X-linked inhibitor of apoptosis-associated factor 1). Consequently, the activity of pro-apoptotic caspases and neuronal death were enhanced in prion-infected SARM1−/− mice. These results point to an unexpected function of SARM1 as a regulator of prion-induced neurodegeneration and suggest that XAF1 might constitute a therapeutic target in prion disease.
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Affiliation(s)
- Caihong Zhu
- Institute of Neuropathology, University of Zurich, Zurich, Switzerland
| | - Bei Li
- Institute of Neuropathology, University of Zurich, Zurich, Switzerland
| | - Karl Frontzek
- Institute of Neuropathology, University of Zurich, Zurich, Switzerland
| | - Yingjun Liu
- Institute of Neuropathology, University of Zurich, Zurich, Switzerland
| | - Adriano Aguzzi
- Institute of Neuropathology, University of Zurich, Zurich, Switzerland
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Intracellular RNA Sensing in Mammalian Cells: Role in Stress Response and Cancer Therapies. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2019; 344:31-89. [DOI: 10.1016/bs.ircmb.2018.08.005] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Camacho-Moctezuma B, Quevedo-Castillo M, Melendez-Zajgla J, Aquino-Jarquin G, Martinez-Ruiz GU. YY1 negatively regulates the XAF1 gene expression in prostate cancer. Biochem Biophys Res Commun 2018; 508:973-979. [PMID: 30551877 DOI: 10.1016/j.bbrc.2018.12.056] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Accepted: 12/06/2018] [Indexed: 12/31/2022]
Abstract
XAF1 is a tumor suppressor gene with low or absent expression in cancer. Since transcriptional reactivation or ectopic-mediated expression of XAF1 inhibits tumor growth, it is of great interest to elucidate the molecular mechanisms leading to XAF1 silencing. YY1 is a transcription factor that acts as a repressor or an activator to modulate several cancer-associated cellular processes. Both YY1 and XAF1 have key roles in prostate cancer (PCa) progression and are associated with worse clinical outcomes. To assess whether YY1 regulates the transcriptional activation of the XAF1 gene, we performed gene-reporter assays coupled with site-directed mutagenesis, which showed that YY1 is able to mediate XAF1 silencing. Concordantly, ChIP-qPCR assays showed that YY1 interacts with the XAF1 promoter in PC3 cells that lacks XAF1 expression. This association was lost after exposure to epigenetic modulators that induce XAF1 expression. Further supporting the YY1's repressive role, we found transcriptional reactivation of the XAF1 gene by YY1 downregulation. As expected by previous reports showing that HDAC1 is needed for YY1-mediated repressive actions, we observed XAF1 re-expression after either inhibition or downregulation of the HDAC1 gene. Finally, expression data retrieved from the TCGA consortium showed that PCa samples presented lower XAF1 and higher HDAC expression levels than normal tissues. Thus, our results support a model in which YY1 is able to silence tumor suppressor genes such as XAF1 through HDAC1 in PCa.
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Affiliation(s)
- B Camacho-Moctezuma
- Laboratorio de Investigacion en Patologia Experimental, Hospital Infantil de Mexico Federico Gomez, 06720, Mexico City, Mexico; Division de Investigacion, Facultad de Medicina, Universidad Nacional Autonoma de Mexico, 04510, Mexico City, Mexico
| | - M Quevedo-Castillo
- Laboratorio de Investigacion en Patologia Experimental, Hospital Infantil de Mexico Federico Gomez, 06720, Mexico City, Mexico; Division de Investigacion, Facultad de Medicina, Universidad Nacional Autonoma de Mexico, 04510, Mexico City, Mexico
| | - J Melendez-Zajgla
- Genomica Funcional del Cancer, Instituto Nacional de Medicina Genomica, 14610, Mexico City, Mexico
| | - G Aquino-Jarquin
- Laboratorio de Investigacion en Genomica, Genetica y Bioinformatica, Hospital Infantil de Mexico Federico Gomez, 06720, Mexico City, Mexico
| | - G U Martinez-Ruiz
- Laboratorio de Investigacion en Patologia Experimental, Hospital Infantil de Mexico Federico Gomez, 06720, Mexico City, Mexico; Division de Investigacion, Facultad de Medicina, Universidad Nacional Autonoma de Mexico, 04510, Mexico City, Mexico.
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