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Thomas ME, Qi W, Walsh MP, Ma J, Westover T, Abdelhamed S, Ezzell LJ, Rolle C, Xiong E, Rosikiewicz W, Xu B, Loughran AJ, Pruett-Miller SM, Janke LJ, Klco JM. Functional characterization of cooperating MGA mutations in RUNX1::RUNX1T1 acute myeloid leukemia. Leukemia 2024; 38:991-1002. [PMID: 38454121 PMCID: PMC11073986 DOI: 10.1038/s41375-024-02193-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 02/16/2024] [Accepted: 02/20/2024] [Indexed: 03/09/2024]
Abstract
MGA (Max-gene associated) is a dual-specificity transcription factor that negatively regulates MYC-target genes to inhibit proliferation and promote differentiation. Loss-of-function mutations in MGA have been commonly identified in several hematological neoplasms, including acute myeloid leukemia (AML) with RUNX1::RUNX1T1, however, very little is known about the impact of these MGA alterations on normal hematopoiesis or disease progression. We show that representative MGA mutations identified in patient samples abolish protein-protein interactions and transcriptional activity. Using a series of human and mouse model systems, including a newly developed conditional knock-out mouse strain, we demonstrate that loss of MGA results in upregulation of MYC and E2F targets, cell cycle genes, mTOR signaling, and oxidative phosphorylation in normal hematopoietic cells, leading to enhanced proliferation. The loss of MGA induces an open chromatin state at promoters of genes involved in cell cycle and proliferation. RUNX1::RUNX1T1 expression in Mga-deficient murine hematopoietic cells leads to a more aggressive AML with a significantly shortened latency. These data show that MGA regulates multiple pro-proliferative pathways in hematopoietic cells and cooperates with the RUNX1::RUNX1T1 fusion oncoprotein to enhance leukemogenesis.
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Affiliation(s)
- Melvin E Thomas
- Department of Pathology, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Mail Stop 342, Memphis, TN, 38105, USA
| | - Wenqing Qi
- Department of Pathology, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Mail Stop 342, Memphis, TN, 38105, USA
| | - Michael P Walsh
- Department of Pathology, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Mail Stop 342, Memphis, TN, 38105, USA
| | - Jing Ma
- Department of Pathology, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Mail Stop 342, Memphis, TN, 38105, USA
| | - Tamara Westover
- Department of Pathology, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Mail Stop 342, Memphis, TN, 38105, USA
| | - Sherif Abdelhamed
- Department of Pathology, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Mail Stop 342, Memphis, TN, 38105, USA
| | - Lauren J Ezzell
- Graduate School of Biomedical Sciences, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Chandra Rolle
- Department of Pathology, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Mail Stop 342, Memphis, TN, 38105, USA
| | - Emily Xiong
- Department of Pathology, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Mail Stop 342, Memphis, TN, 38105, USA
| | - Wojciech Rosikiewicz
- Center for Applied Bioinformatics, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Beisi Xu
- Center for Applied Bioinformatics, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Allister J Loughran
- Center for Advanced Genome Engineering, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Shondra M Pruett-Miller
- Center for Advanced Genome Engineering, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Laura J Janke
- Department of Pathology, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Mail Stop 342, Memphis, TN, 38105, USA
| | - Jeffery M Klco
- Department of Pathology, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Mail Stop 342, Memphis, TN, 38105, USA.
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Fang Y, Fu M, Li X, Zhang B, Wan C. Enterohemorrhagic Escherichia coli effector EspF triggers oxidative DNA lesions in intestinal epithelial cells. Infect Immun 2024; 92:e0000124. [PMID: 38415639 PMCID: PMC11003234 DOI: 10.1128/iai.00001-24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Accepted: 01/17/2024] [Indexed: 02/29/2024] Open
Abstract
Attaching/effacing (A/E) pathogens induce DNA damage and colorectal cancer by injecting effector proteins into host cells via the type III secretion system (T3SS). EspF is one of the T3SS-dependent effector proteins exclusive to A/E pathogens, which include enterohemorrhagic Escherichia coli. The role of EspF in the induction of double-strand breaks (DSBs) and the phosphorylation of the repair protein SMC1 has been demonstrated previously. However, the process of damage accumulation and DSB formation has remained enigmatic, and the damage response is not well understood. Here, we first showed a compensatory increase in the mismatch repair proteins MutS homolog 2 (MSH2) and MSH6, as well as poly(ADP-ribose) polymerase 1, followed by a dramatic decrease, threatening cell survival in the presence of EspF. Flow cytometry revealed that EspF arrested the cell cycle at the G2/M phase to facilitate DNA repair. Subsequently, 8-oxoguanine (8-oxoG) lesions, a marker of oxidative damage, were assayed by ELISA and immunofluorescence, which revealed the accumulation of 8-oxoG from the cytosol to the nucleus. Furthermore, the status of single-stranded DNA (ssDNA) and DSBs was confirmed. We observed that EspF accelerated the course of DNA lesions, including 8-oxoG and unrepaired ssDNA, which were converted into DSBs; this was accompanied by the phosphorylation of replication protein A 32 in repair-defective cells. Collectively, these findings reveal that EspF triggers various types of oxidative DNA lesions with impairment of the DNA damage response and may result in genomic instability and cell death, offering novel insight into the tumorigenic potential of EspF.IMPORTANCEOxidative DNA lesions play causative roles in colitis-associated colon cancer. Accumulating evidence shows strong links between attaching/effacing (A/E) pathogens and colorectal cancer (CRC). EspF is one of many effector proteins exclusive to A/E pathogens with defined roles in the induction of oxidative stress, double-strand breaks (DSBs), and repair dysregulation. Here, we found that EspF promotes reactive oxygen species generation and 8-oxoguanine (8-oxoG) lesions when the repair system is activated, contributing to sustained cell survival. However, infected cells exposed to EspF presented 8-oxoG, which results in DSBs and ssDNA accumulation when the cell cycle is arrested at the G2/M phase and the repair system is defective or saturated by DNA lesions. In addition, we found that EspF could intensify the accumulation of nuclear DNA lesions through oxidative and replication stress. Overall, our work highlights the involvement of EspF in DNA lesions and DNA damage response, providing a novel avenue by which A/E pathogens may contribute to CRC.
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Affiliation(s)
- Yuting Fang
- BSL-3 Laboratory, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, Guangdong, China
| | - Muqing Fu
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Xinyue Li
- BSL-3 Laboratory, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, Guangdong, China
| | - Bao Zhang
- BSL-3 Laboratory, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, Guangdong, China
| | - Chengsong Wan
- BSL-3 Laboratory, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, Guangdong, China
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Mayayo-Peralta I, Gregoricchio S, Schuurman K, Yavuz S, Zaalberg A, Kojic A, Abbott N, Geverts B, Beerthuijzen S, Siefert J, Severson TM, van Baalen M, Hoekman L, Lieftink C, Altelaar M, Beijersbergen RL, Houtsmuller A, Prekovic S, Zwart W. PAXIP1 and STAG2 converge to maintain 3D genome architecture and facilitate promoter/enhancer contacts to enable stress hormone-dependent transcription. Nucleic Acids Res 2023; 51:9576-9593. [PMID: 37070193 PMCID: PMC10570044 DOI: 10.1093/nar/gkad267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 03/03/2023] [Accepted: 04/12/2023] [Indexed: 04/19/2023] Open
Abstract
How steroid hormone receptors (SHRs) regulate transcriptional activity remains partly understood. Upon activation, SHRs bind the genome together with a co-regulator repertoire, crucial to induce gene expression. However, it remains unknown which components of the SHR-recruited co-regulator complex are essential to drive transcription following hormonal stimuli. Through a FACS-based genome-wide CRISPR screen, we functionally dissected the Glucocorticoid Receptor (GR) complex. We describe a functional cross-talk between PAXIP1 and the cohesin subunit STAG2, critical for regulation of gene expression by GR. Without altering the GR cistrome, PAXIP1 and STAG2 depletion alter the GR transcriptome, by impairing the recruitment of 3D-genome organization proteins to the GR complex. Importantly, we demonstrate that PAXIP1 is required for stability of cohesin on chromatin, its localization to GR-occupied sites, and maintenance of enhancer-promoter interactions. In lung cancer, where GR acts as tumor suppressor, PAXIP1/STAG2 loss enhances GR-mediated tumor suppressor activity by modifying local chromatin interactions. All together, we introduce PAXIP1 and STAG2 as novel co-regulators of GR, required to maintain 3D-genome architecture and drive the GR transcriptional programme following hormonal stimuli.
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Affiliation(s)
- Isabel Mayayo-Peralta
- Division of Oncogenomics, Oncode Institute, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Sebastian Gregoricchio
- Division of Oncogenomics, Oncode Institute, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Karianne Schuurman
- Division of Oncogenomics, Oncode Institute, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Selçuk Yavuz
- Erasmus Optical Imaging Center, Erasmus University Medical Center Rotterdam, Rotterdam, The Netherland
| | - Anniek Zaalberg
- Division of Oncogenomics, Oncode Institute, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Aleksandar Kojic
- Division of Oncogenomics, Oncode Institute, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Nina Abbott
- Division of Oncogenomics, Oncode Institute, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Bart Geverts
- Erasmus Optical Imaging Center, Erasmus University Medical Center Rotterdam, Rotterdam, The Netherland
- Department of Pathology, Erasmus University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Suzanne Beerthuijzen
- Division of Oncogenomics, Oncode Institute, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Joseph Siefert
- Division of Oncogenomics, Oncode Institute, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Tesa M Severson
- Division of Oncogenomics, Oncode Institute, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Martijn van Baalen
- Flow Cytometry Facility, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Liesbeth Hoekman
- Proteomics Facility, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Cor Lieftink
- Division of Molecular Carcinogenesis, The NKI Robotics and Screening Centre, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Maarten Altelaar
- Proteomics Facility, The Netherlands Cancer Institute, Amsterdam, The Netherlands
- Biomolecular Mass Spectrometry and Proteomics, Bijvoet Center for Biomolecular Research, Utrecht Institute for Pharmaceutical Sciences, Utrecht University and Netherlands Proteomics Centre, Utrecht, The Netherlands
| | - Roderick L Beijersbergen
- Division of Molecular Carcinogenesis, The NKI Robotics and Screening Centre, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Adriaan B Houtsmuller
- Erasmus Optical Imaging Center, Erasmus University Medical Center Rotterdam, Rotterdam, The Netherland
| | - Stefan Prekovic
- Division of Oncogenomics, Oncode Institute, The Netherlands Cancer Institute, Amsterdam, The Netherlands
- Center for Molecular Medicine, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Wilbert Zwart
- Division of Oncogenomics, Oncode Institute, The Netherlands Cancer Institute, Amsterdam, The Netherlands
- Laboratory of Chemical Biology and Institute for Complex Molecular Systems, Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands
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4
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Klco J, Thomas M, Qi W, Walsh M, Ma J, Westover T, Abdelhamed S, Ezzell L, Rolle C, Xiong E, Rosikiewicz W, Xu B, Pruett-Miller S, Loughran A, Janke L. Functional Characterization of Cooperating MGA Mutations in RUNX1::RUNX1T1 Acute Myeloid Leukemia. RESEARCH SQUARE 2023:rs.3.rs-3315059. [PMID: 37790524 PMCID: PMC10543392 DOI: 10.21203/rs.3.rs-3315059/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/05/2023]
Abstract
MGA (Max-gene associated) is a dual-specificity transcription factor that negatively regulates MYC-target genes to inhibit proliferation and promote differentiation. Loss-of-function mutations in MGA have been commonly identified in several hematological neoplasms, including acute myeloid leukemia (AML) with RUNX1::RUNX1T1, however, very little is known about the impact of these MGA alterations on normal hematopoiesis or disease progression. We show that representative MGA mutations identified in patient samples abolish protein-protein interactions and transcriptional activity. Using a series of human and mouse model systems, including a newly developed conditional knock-out mouse strain, we demonstrate that loss of MGA results in upregulation of MYC and E2F targets, cell cycle genes, mTOR signaling, and oxidative phosphorylation in normal hematopoietic cells, leading to enhanced proliferation. The loss of MGA induces an open chromatin state at promotors of genes involved in cell cycle and proliferation. RUNX1::RUNX1T1 expression in Mga-deficient murine hematopoietic cells leads to a more aggressive AML with a significantly shortened latency. These data show that MGA regulates multiple pro-proliferative pathways in hematopoietic cells and cooperates with the RUNX1::RUNX1 T1 fusion oncoprotein to enhance leukemogenesis.
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Affiliation(s)
| | | | | | | | - Jing Ma
- St. Jude Children's Research Hospital
| | | | | | | | | | | | | | - Beisi Xu
- St Jude Children's Research Hospital
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Liu Y, Fang X, Wang Q, Xiao D, Zhou T, Kang K, Peng Z, Ren F, Zhou J. SMC1A facilitates gastric cancer cell proliferation, migration, and invasion via promoting SNAIL activated EMT. BMC Gastroenterol 2023; 23:268. [PMID: 37537540 PMCID: PMC10401881 DOI: 10.1186/s12876-023-02850-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 06/08/2023] [Indexed: 08/05/2023] Open
Abstract
BACKGROUND Structural maintenance of chromosomes protein 1 A (SMC1A) is a crucial subunit of the cohesion protein complex and plays a vital role in cell cycle regulation, genomic stability maintenance, chromosome dynamics. Recent studies demonstrated that SMC1A participates in tumorigenesis. This reseach aims to explore the role and the underlying mechanisms of SMC1A in gastric cancer (GC). MATERIALS AND METHODS RT-qPCR and western blot were used to examine the expression levels of SMC1A in GC tissues and cell lines. The role of SMC1A on GC cell proliferation, migration, invasion and epithelial-mesenchymal transition (EMT) were analyzed. Furthermore,the mechanism of SMC1A action was investigated. RESULTS SMC1A was highly expressed in GC tissues and cell lines. The high expression of SMC1A indicated the poor overall survival of GC patients from Kaplan-Meier Plotter. Enhancing the expression of SMC1A in AGS cells remarkably promoted cell proliferation in vitro and in vivo, migration and invasion, Conversely, knockdown of SMC1A in HGC27 cells inhibited cell proliferation, migration and invasion. Moreover, it's observed that SMC1A promoted EMT and malignant cell behaviors via regulating SNAIL. CONCLUSION Our study revealed that SMC1A promotes EMT process by upregulating SNAIL, which contributes to gastric cancer cell proliferation, migration and invasion. Therefore, targeting SMC1A may be a potential strategy to improve GC therapy.
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Affiliation(s)
- Yaling Liu
- Department of Geriatrics Surgery, The Second Xiangya Hospital, Central South University, No. 139 Renmin Road, Furong District, Changsha City, 410011, Hunan Province, China
| | - Xianrui Fang
- Department of General Surgery, Yantai Qishan Hospital, Yantai, 264000, Shandong, China
| | - Qianqian Wang
- Department of Oncology, The Affiliated ZhuZhou Hospital of XiangYa Medical College, Central South University, ZhuZhou, 412007, Hunan, China
| | - Da Xiao
- Department of General Surgery, Shekou People's Hospital, Shenzhen, 518000, Guangdong, China
| | - Ting Zhou
- Department of Geriatrics Surgery, The Second Xiangya Hospital, Central South University, No. 139 Renmin Road, Furong District, Changsha City, 410011, Hunan Province, China
| | - Kuo Kang
- Department of Geriatrics Surgery, The Second Xiangya Hospital, Central South University, No. 139 Renmin Road, Furong District, Changsha City, 410011, Hunan Province, China
| | - Zhenyu Peng
- Department of Geriatrics Surgery, The Second Xiangya Hospital, Central South University, No. 139 Renmin Road, Furong District, Changsha City, 410011, Hunan Province, China
| | - Feng Ren
- Department of Geriatrics Surgery, The Second Xiangya Hospital, Central South University, No. 139 Renmin Road, Furong District, Changsha City, 410011, Hunan Province, China.
| | - Jingyu Zhou
- Department of Geriatrics Surgery, The Second Xiangya Hospital, Central South University, No. 139 Renmin Road, Furong District, Changsha City, 410011, Hunan Province, China.
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Adzibolosu N, Alvero AB, Ali-Fehmi R, Gogoi R, Corey L, Tedja R, Chehade H, Gogoi V, Morris R, Anderson M, Vitko J, Lam C, Craig DB, Draghici S, Rutherford T, Mor G. Immunological modifications following chemotherapy are associated with delayed recurrence of ovarian cancer. Front Immunol 2023; 14:1204148. [PMID: 37435088 PMCID: PMC10331425 DOI: 10.3389/fimmu.2023.1204148] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 06/12/2023] [Indexed: 07/13/2023] Open
Abstract
Introduction Ovarian cancer recurs in most High Grade Serous Ovarian Cancer (HGSOC) patients, including initial responders, after standard of care. To improve patient survival, we need to identify and understand the factors contributing to early or late recurrence and therapeutically target these mechanisms. We hypothesized that in HGSOC, the response to chemotherapy is associated with a specific gene expression signature determined by the tumor microenvironment. In this study, we sought to determine the differences in gene expression and the tumor immune microenvironment between patients who show early recurrence (within 6 months) compared to those who show late recurrence following chemotherapy. Methods Paired tumor samples were obtained before and after Carboplatin and Taxol chemotherapy from 24 patients with HGSOC. Bioinformatic transcriptomic analysis was performed on the tumor samples to determine the gene expression signature associated with differences in recurrence pattern. Gene Ontology and Pathway analysis was performed using AdvaitaBio's iPathwayGuide software. Tumor immune cell fractions were imputed using CIBERSORTx. Results were compared between late recurrence and early recurrence patients, and between paired pre-chemotherapy and post-chemotherapy samples. Results There was no statistically significant difference between early recurrence or late recurrence ovarian tumors pre-chemotherapy. However, chemotherapy induced significant immunological changes in tumors from late recurrence patients but had no impact on tumors from early recurrence patients. The key immunological change induced by chemotherapy in late recurrence patients was the reversal of pro-tumor immune signature. Discussion We report for the first time, the association between immunological modifications in response to chemotherapy and the time of recurrence. Our findings provide novel opportunities to ultimately improve ovarian cancer patient survival.
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Affiliation(s)
- Nicholas Adzibolosu
- C. S. Mott Center for Human Growth and Development, Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, United States
- Department of Physiology, Wayne State University School of Medicine, Detroit, MI, United States
| | - Ayesha B. Alvero
- C. S. Mott Center for Human Growth and Development, Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, United States
- Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, MI, United States
| | - Rouba Ali-Fehmi
- C. S. Mott Center for Human Growth and Development, Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, United States
- Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, MI, United States
| | - Radhika Gogoi
- C. S. Mott Center for Human Growth and Development, Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, United States
- Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, MI, United States
| | - Logan Corey
- C. S. Mott Center for Human Growth and Development, Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, United States
- Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, MI, United States
| | - Roslyn Tedja
- C. S. Mott Center for Human Growth and Development, Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, United States
- Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, MI, United States
| | - Hussein Chehade
- C. S. Mott Center for Human Growth and Development, Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, United States
- Center of Molecular Medicine and Genetics, Wayne State University School of Medicine, Detroit, MI, United States
| | - Vir Gogoi
- C. S. Mott Center for Human Growth and Development, Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, United States
| | - Robert Morris
- Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, MI, United States
| | - Matthew Anderson
- Department of Obstetrics and Gynecology, University of South Florida Morsani College of Medicine, Tampa, FL, United States
| | - Julie Vitko
- Department of Pathology and Cell Biology, University of South Florida Morsani College of Medicine, Tampa, FL, United States
| | - Clarissa Lam
- Department of Gynecologic Oncology, Memorial Sloan Kettering Cancer Center, New York, NY, United States
| | - Douglas B. Craig
- Department of Computer Science, Wayne State University College of Engineering, Detroit, MI, United States
- Department of Oncology, Wayne State University School of Medicine, Detroit, MI, United States
| | - Sorin Draghici
- C. S. Mott Center for Human Growth and Development, Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, United States
- Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, MI, United States
- Department of Computer Science, Wayne State University College of Engineering, Detroit, MI, United States
- Advaita Corporation, Ann Arbor, MI, United States
- Division of Information and Intelligent Systems, Directorate for Computer and Information Science and Engineering, National Science Foundation, Alexandria, VA, United States
| | - Thomas Rutherford
- Department of Obstetrics and Gynecology, University of South Florida Morsani College of Medicine, Tampa, FL, United States
| | - Gil Mor
- C. S. Mott Center for Human Growth and Development, Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, United States
- Department of Physiology, Wayne State University School of Medicine, Detroit, MI, United States
- Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, MI, United States
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Full-Length Transcriptome Comparison Provides Novel Insights into the Molecular Basis of Adaptation to Different Ecological Niches of the Deep-Sea Hydrothermal Vent in Alvinocaridid Shrimps. DIVERSITY 2022. [DOI: 10.3390/d14050371] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The deep-sea hydrothermal vent ecosystem is one of the extreme chemoautotrophic environments. Shinkaicaris leurokolos Kikuchi and Hashimoto, 2000, and Alvinocaris longirostris Kikuchi and Ohta, 1995, are typically co-distributed and closely related alvinocaridid shrimps in hydrothermal vent areas with different ecological niches, providing an excellent model for studying the adaptive evolution mechanism of animals in the extreme deep-sea hydrothermal vent environment. The shrimp S. leurokolos lives in close proximity to the chimney vent discharging high-temperature fluid, while A. longirostris inhabits the peripheral areas of hydrothermal vents. In this study, full-length transcriptomes of S. leurokolos and A. longirostris were generated using a combination of single-molecule real-time (SMRT) and Illumina RNA-seq technology. Expression analyses of the transcriptomes showed that among the top 30% of highly expressed genes of each species, more genes related to sulfide and heavy metal metabolism (sulfide: quinone oxidoreductase, SQR; persulfide dioxygenase, ETHE1; thiosulfate sulfurtransferase, TST, and ferritin, FRI) were specifically highly expressed in S. leurokolos, while genes involved in maintaining epibiotic bacteria or pathogen resistance (beta-1,3-glucan-binding protein, BGBP; endochitinase, CHIT; acidic mammalian chitinase, CHIA, and anti-lipopolysaccharide factors, ALPS) were highly expressed in A. longirostris. Gene family expansion analysis revealed that genes related to anti-oxidant metabolism (cytosolic manganese superoxide dismutase, SODM; glutathione S-transferase, GST, and glutathione peroxidase, GPX) and heat stress (heat shock cognate 70 kDa protein, HSP70 and heat shock 70 kDa protein cognate 4, HSP7D) underwent significant expansion in S. leurokolos, while CHIA and CHIT involved in pathogen resistance significantly expanded in A. longirostris. Finally, 66 positively selected genes (PSGs) were identified in the vent shrimp S. leurokolos. Most of the PSGs were involved in DNA repair, antioxidation, immune defense, and heat stress response, suggesting their function in the adaptive evolution of species inhabiting the extreme vent microhabitat. This study provides abundant genetic resources for deep-sea invertebrates, and is expected to lay the foundation for deep decipherment of the adaptive evolution mechanism of shrimps in a deep-sea chemosynthetic ecosystem based on further whole-genome comparison.
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Fu M, Liang S, Wu J, Hua Y, Chen H, Zhang Z, Liu J, Li X, Zhang B, Zhao W, Wan C. An Escherichia coli Effector Protein EspF May Induce Host DNA Damage via Interaction With SMC1. Front Microbiol 2021; 12:682064. [PMID: 34122393 PMCID: PMC8188558 DOI: 10.3389/fmicb.2021.682064] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 04/30/2021] [Indexed: 12/22/2022] Open
Abstract
Enterohemorrhagic Escherichia coli (EHEC) O157: H7 is an important foodborne pathogen that causes human diarrhea, hemorrhagic colitis, and hemolytic uremic syndrome. EspF is one of the most important effector proteins injected by the Type III Secretion System. It can target mitochondria and nucleoli, stimulate host cells to produce ROS, and promote host cell apoptosis. However, the mechanism of the host-pathogen interaction leading to host oxidative stress and cell cytotoxic effects such as DNA damage remains to be elucidated. Here, we used Cell Counting Kit-8 (CCK-8) assays and 8-oxo-7,8-dihydro-2'-deoxyguanosine (8-OHdG) ELISA to study cell viability and DNA oxidative damage level after exposure to EspF. Western blot and immunofluorescence were also used to determine the level of the DNA damage target protein p-H2AX and cell morphology changes after EspF infection. Moreover, we verified the toxicity in intestinal epithelial cells mediated by EspF infection in vivo. In addition, we screened the host proteins that interact with EspF using CoIP-MS. We found that EspF may more depend on its C-terminus to interact with SMC1, and EspF could activate SMC1 phosphorylation and migrate it to the cytoplasm. In summary, this study revealed that EspF might mediate host cell DNA damage and found a new interaction between EspF and the DNA damage repair protein SMC1. Thus, EspF may mediate DNA damage by regulating the subcellular localization and phosphorylation of SMC1.
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Affiliation(s)
- Muqing Fu
- Department of Microbiology, School of Public Health, Southern Medical University, Guangzhou, China
| | - Song Liang
- Department of Microbiology, School of Public Health, Southern Medical University, Guangzhou, China
| | - Jiali Wu
- Department of Microbiology, School of Public Health, Southern Medical University, Guangzhou, China
| | - Ying Hua
- Department of Microbiology, School of Public Health, Southern Medical University, Guangzhou, China
| | - Hanzong Chen
- Department of Microbiology, School of Public Health, Southern Medical University, Guangzhou, China
| | - Zhikai Zhang
- Department of Microbiology, School of Public Health, Southern Medical University, Guangzhou, China
| | - Jinyue Liu
- Department of Microbiology, School of Public Health, Southern Medical University, Guangzhou, China
| | - Xiaoxia Li
- Department of Microbiology, School of Public Health, Southern Medical University, Guangzhou, China
| | - Bao Zhang
- Department of Microbiology, School of Public Health, Southern Medical University, Guangzhou, China
| | - Wei Zhao
- Department of Microbiology, School of Public Health, Southern Medical University, Guangzhou, China
| | - Chengsong Wan
- Department of Microbiology, School of Public Health, Southern Medical University, Guangzhou, China
- Key Laboratory of Tropical Disease Research of Guangdong Province, Guangzhou, China
- *Correspondence: Chengsong Wan,
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9
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Sridharan DM, Chien LC, Cucinotta FA, Pluth JM. Comparison of signaling profiles in the low dose range following low and high LET radiation. LIFE SCIENCES IN SPACE RESEARCH 2020; 25:28-41. [PMID: 32414491 DOI: 10.1016/j.lssr.2020.02.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Revised: 02/10/2020] [Accepted: 02/13/2020] [Indexed: 06/11/2023]
Abstract
During space travel astronauts will be exposed to a very low, mixed field of radiation containing different high LET particles of varying energies, over an extended period. Thus, defining how human cells respond to these complex low dose exposures is important in ascertaining risk. In the current study, we have chosen to investigate how low doses of three different ion's at various energies uniquely change the kinetics of three different phospho-proteins. A normal hTERT immortalized fibroblast cell line, 82-6, was exposed to a range of lower doses (0.05-0.5 Gy) of radiation of different qualities and energies (Si 1000 MeV/u, Si 300 MeV/u, Si 173 MeV/u, Si 93 MeV/u, Fe 1000 MeV/u, Fe 600 MeV/u, Fe 300 MeV/u, Ti 300 MeV/u, Ti 326 MeV/u, Ti 386 MeV/u), covering a wide span of LET's. Exposed samples were analyzed for the average intensity of signal as a fold over the geometric mean level of the sham controls. Three phospho-proteins known to localize to DNA DSBs following radiation (γH2AX, pATF2, pSMC1) were studied. The kinetics of their response was quantified by flow cytometery at 2 and 24 h post exposure. These studies reveal unique kinetic patterns based on the ion, energy, fluence and time following exposure. In addition, γH2AX phosphorylation patterns are uniquely different from phospho-proteins known to be primarily phosphorylated by ATM. This latter finding suggests that the activating kinase(s), or the phosphatases deactivating these proteins, exhibit differences in their response to various radiation qualities and/ or doses of exposure. Further studies will be needed to better define what the differing kinetics for the kinases activated by the unique radiation qualities plays in the biological effectiveness of the particle.
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Affiliation(s)
- Deepa M Sridharan
- Lawrence Berkeley National Laboratory, Life Sciences Division, Berkeley, CA 94710, United States
| | - Lung-Chang Chien
- Department of Environmental and Occupational Health, University of Nevada, Las Vegas, NV, 89154, United States
| | - Francis A Cucinotta
- Health Physics and Diagnostic Sciences, University of Nevada, Las Vegas, NV 89154, United States
| | - Janice M Pluth
- Health Physics and Diagnostic Sciences, University of Nevada, Las Vegas, NV 89154, United States.
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10
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Karaca N, Ates D, Nemli S, Ozkuru E, Yilmaz H, Yagmur B, Kartal C, Tosun M, Ocak OO, Otles S, Kahriman A, Tanyolac MB. Association mapping of magnesium and manganese concentrations in the seeds of C. arietinum and C. reticulatum. Genomics 2019; 112:1633-1642. [PMID: 31669504 DOI: 10.1016/j.ygeno.2019.09.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2019] [Revised: 09/05/2019] [Accepted: 09/16/2019] [Indexed: 12/30/2022]
Abstract
Chickpea (Cicer arietinum L.) is one of the oldest and most important pulse crops grown and consumed all over the world, especially in developing countries. Magnesium (Mg) and manganese (Mn) are essential plant nutrients in terms of human health and many health problems arise in their deficiencies. The objectives of this study were to characterize genetic variability in the seed Mg and Mn concentrations and identify single nucleotide polymorphism (SNP) markers associated with these traits in 107 Cicer reticulatum and 73C. arietinum genotypes, using a genome wide association study. The genotypes were grown in four environments, characterized for Mg and Mn concentrations, and genotyped with 121,841 SNP markers. The population showed three-fold and two-fold variation for the Mg and Mn concentrations, respectively. The population structure was identified using STRUCTURE software, which divided 180 genotypes into two (K = 2) groups. Principal component analysis and neighbor joining tree analysis confirmed the results of STRUCTURE. A total of 4 and 16 consistent SNPs were detected for the Mg and Mn concentrations, respectively. The identified markers can be utilized in breeding of chickpea to increase Mg and Mn levels in order to improve human and livestock nutrition.
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Affiliation(s)
- Nur Karaca
- Ege University, Department of Bioengineering, 35040, Bornova, Izmir, Turkey
| | - Duygu Ates
- Ege University, Department of Bioengineering, 35040, Bornova, Izmir, Turkey
| | - Seda Nemli
- Ege University, Department of Bioengineering, 35040, Bornova, Izmir, Turkey
| | - Esin Ozkuru
- Ege University, Department of Bioengineering, 35040, Bornova, Izmir, Turkey
| | - Hasan Yilmaz
- Ege University, Department of Bioengineering, 35040, Bornova, Izmir, Turkey
| | - Bulent Yagmur
- Ege University, Department of Soil Sciences, 35040, Bornova, Izmir, Turkey
| | - Canan Kartal
- Ege University, Department of Food Engineering, 35040, Bornova, Izmir, Turkey
| | - Muzaffer Tosun
- Ege University, Department of Field Crops, 35040, Bornova, Izmir, Turkey
| | - Ozgul Ozdestan Ocak
- Ege University, Department of Food Engineering, 35040, Bornova, Izmir, Turkey
| | - Semih Otles
- Ege University, Department of Food Engineering, 35040, Bornova, Izmir, Turkey
| | - Abdullah Kahriman
- Harran University, Department of Field Crops, 64000 Sanli Urfa, Turkey
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11
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Ravi M, Ramanathan S, Krishna K. Factors, mechanisms and implications of chromatin condensation and chromosomal structural maintenance through the cell cycle. J Cell Physiol 2019; 235:758-775. [PMID: 31264212 DOI: 10.1002/jcp.29038] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Accepted: 06/12/2019] [Indexed: 12/16/2022]
Abstract
A series of well-orchestrated events help in the chromatin condensation and the formation of chromosomes. Apart from the formation of chromosomes, maintenance of their structure is important, especially for the cell division. The structural maintenance of chromosome (SMC) proteins, the non-SMC proteins and the SMC complexes are critical for the maintenance of chromosome structure. While condensins have roles for the DNA compaction, organization, and segregation, the cohesin functions in a cyclic manner through the cell cycle, as a "cohesin cycle." Specific mechanisms maintain the architecture of the centromere, the kinetochore and the telomeres which are in tandem with the cell cycle checkpoints. The presence of chromosomal territories and compactness differences through the length of the chromosomes might have implications on selective susceptibility of specific chromosomes for induced genotoxicity.
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Affiliation(s)
- Maddaly Ravi
- Department of Human Genetics, Faculty of Biomedical Sciences, Technology and Research, Sri Ramachandra Institute of Higher Education and Research, Porur, Chennai, India
| | - Srishti Ramanathan
- Department of Human Genetics, Faculty of Biomedical Sciences, Technology and Research, Sri Ramachandra Institute of Higher Education and Research, Porur, Chennai, India
| | - Krupa Krishna
- Department of Human Genetics, Faculty of Biomedical Sciences, Technology and Research, Sri Ramachandra Institute of Higher Education and Research, Porur, Chennai, India
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12
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An J, He H, Wang L, Jin Y, Kong J, Zhong Y, Liu M, Shang Y. Fresh and ozonized black carbon promoted DNA damage and repair responses in A549 cells. Toxicol Res (Camb) 2018; 8:180-187. [PMID: 30931099 DOI: 10.1039/c8tx00281a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Accepted: 11/15/2018] [Indexed: 01/16/2023] Open
Abstract
Nano-sized ambient black carbon (BC) is hypothesized to pose a serious threat to human health. After emission into the air, the atmospheric oxidation process can modify its physiochemical properties and change its biological responses. In this study, we aimed to compare different DNA damage and repair responses promoted by fresh BC (FBC) and ozone oxidized-BC (OBC). The cell apoptosis, cell arrest, DNA damage and repair were investigated in A549 cells after treatment with FBC and OBC. Associated gene expressions were measured with the reverse transcription quantitative polymerase chain reaction (RT-qPCR) method. Both FBC and OBC could induce cell apoptosis in A549 cells with up-regulated gene of promyelocytic leukemia protein (pml) and down-regulated gene of anti-apoptotic B-cell lymphoma-2 (bcl-2). FBC caused cell cycle arrest at S and G2/M phases, which was associated with up-regulated ataxia telangiectasia mutated (atm), checkpoint kinase 2 (chk2), structural maintenance of chromosomes 1 (smc1) and cell division cycle 25 homolog A (cdc25a) genes. OBC promoted cell cycle arrest at the S phase with up-regulated genes of atm, chk2 and smc1. Both FBC and OBC induced oxidative DNA damage and time-dependent DNA repair responses with increased gene expressions of breast cancer susceptibility protein 1 (brca1), recombination protein A paralog B (rad51b), methyl methanesulfonate-sensitivity protein 22-like and tonsoku-like (mms22l). Compared to FBC, OBC could cause more sufficient DNA damage repair responses through cell cycle arrest at the S phase, resulting in relatively weaker DNA damages.
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Affiliation(s)
- Jing An
- School of Environmental and Chemical Engineering , Shanghai University , Shanghai 200444 , China . ; Tel: +86 21 66137736
| | - Huixin He
- School of Environmental and Chemical Engineering , Shanghai University , Shanghai 200444 , China . ; Tel: +86 21 66137736
| | - Lu Wang
- School of Environmental and Chemical Engineering , Shanghai University , Shanghai 200444 , China . ; Tel: +86 21 66137736
| | - Yingying Jin
- School of Environmental and Chemical Engineering , Shanghai University , Shanghai 200444 , China . ; Tel: +86 21 66137736
| | - Jiexing Kong
- School of Environmental and Chemical Engineering , Shanghai University , Shanghai 200444 , China . ; Tel: +86 21 66137736
| | - Yufang Zhong
- School of Environmental and Chemical Engineering , Shanghai University , Shanghai 200444 , China . ; Tel: +86 21 66137736
| | - Mingyuan Liu
- Department of Neurology , Yueyang Hospital of Integrated Chinese and Western Medicine , Shanghai University of Traditional Chinese Medicine , Shanghai 200437 , China . ; Tel: +86 21 65161782
| | - Yu Shang
- School of Environmental and Chemical Engineering , Shanghai University , Shanghai 200444 , China . ; Tel: +86 21 66137736
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13
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Zhang Y, Yi F, Wang L, Wang Z, Zhang N, Wang Z, Li Z, Song X, Wei S, Cao L. Phosphorylation of SMC1A promotes hepatocellular carcinoma cell proliferation and migration. Int J Biol Sci 2018; 14:1081-1089. [PMID: 29988990 PMCID: PMC6036730 DOI: 10.7150/ijbs.24692] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Accepted: 05/05/2018] [Indexed: 12/19/2022] Open
Abstract
Structural maintenance of chromosomes protein 1A (SMC1A) has been implicated in the development of a variety of cancer types. However, its role in hepatocellular carcinoma remains unknown. In this study, we found that phosphorylated SMC1A was highly expressed in HepG2 and Bel7402 cells when compared with other cancer cell lines. Furthermore, SMC1A knockdown dramatically reduced HepG2 and Bel7402 cell proliferation and migration. Re-expressing phosphomimetic mutants S957DS966D significantly enhanced the proliferation and migration of SMC1A knockdown HepG2 and Bel7402 cells. In addition, phosphorylated SMC1A promotes hepatocellular carcinoma cells growth in vivo. Importantly, the expression of phosphorylated SMC1A was significantly higher in human hepatocellular carcinomacells when compared to peri-tumor benign hepatocytes, and its overexpression was significantly associated with worse prognostic outcomes. These observations suggest that phosphorylation of SMC1A is a vital event in tumorigenesis and disease progression in hepatocellular carcinoma thus necessitating further investigation.
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Affiliation(s)
- Ying Zhang
- Key Laboratory of Medical Cell Biology, Ministry of Education; Institute of Translational Medicine, China Medical University; Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, Shenyang, Liaoning Province, China
| | - Fei Yi
- Key Laboratory of Medical Cell Biology, Ministry of Education; Institute of Translational Medicine, China Medical University; Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, Shenyang, Liaoning Province, China
| | - Liang Wang
- Department of Pathology, The College of Basic Medical Sciences, China Medical University, Shenyang, Liaoning Province, China
| | - Zhuo Wang
- Key Laboratory of Medical Cell Biology, Ministry of Education; Institute of Translational Medicine, China Medical University; Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, Shenyang, Liaoning Province, China
| | - Naijin Zhang
- Department of Cardiology, The First Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - Zhijun Wang
- Key Laboratory of Medical Cell Biology, Ministry of Education; Institute of Translational Medicine, China Medical University; Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, Shenyang, Liaoning Province, China
| | - Ziwei Li
- Key Laboratory of Medical Cell Biology, Ministry of Education; Institute of Translational Medicine, China Medical University; Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, Shenyang, Liaoning Province, China
| | - Xiaoyu Song
- Key Laboratory of Medical Cell Biology, Ministry of Education; Institute of Translational Medicine, China Medical University; Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, Shenyang, Liaoning Province, China.,Department of Pathology, The College of Basic Medical Sciences, China Medical University, Shenyang, Liaoning Province, China.,Department of Cardiology, The First Hospital of China Medical University, Shenyang, Liaoning Province, China.,Department of Pathology, School of Medicine, University of Alabama at Birmingham, Birmingham, AL 35249-7331, USA
| | - Shi Wei
- Department of Pathology, School of Medicine, University of Alabama at Birmingham, Birmingham, AL 35249-7331, USA
| | - Liu Cao
- Key Laboratory of Medical Cell Biology, Ministry of Education; Institute of Translational Medicine, China Medical University; Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, Shenyang, Liaoning Province, China
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