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Shaba E, Landi C, Marzocchi C, Vantaggiato L, Bini L, Ricci C, Cantara S. Proteomics Reveals How the Tardigrade Damage Suppressor Protein Teaches Transfected Human Cells to Survive UV-C Stress. Int J Mol Sci 2023; 24:11463. [PMID: 37511223 PMCID: PMC10380570 DOI: 10.3390/ijms241411463] [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: 05/12/2023] [Revised: 06/12/2023] [Accepted: 07/12/2023] [Indexed: 07/30/2023] Open
Abstract
The genome sequencing of the tardigrade Ramazzottius varieornatus revealed a unique nucleosome-binding protein named damage suppressor (Dsup), which was discovered to be crucial for the extraordinary abilities of tardigrades in surviving extreme stresses, such as UV. Evidence in Dsup-transfected human cells suggests that Dsup mediates an overall response in DNA damage signaling, DNA repair, and cell cycle regulation, resulting in an acquired resistance to stress. Given these promising outcomes, our study attempts to provide a wider comprehension of the molecular mechanisms modulated by Dsup in human cells and to explore the Dsup-activated molecular pathways under stress. We performed a differential proteomic analysis of Dsup-transfected and control human cells under basal conditions and at 24 h recovery after exposure to UV-C. We demonstrate via enrichment and network analyses, for the first time, that even in the absence of external stimuli, and more significantly, after stress, Dsup activates mechanisms involved with the unfolded protein response, the mRNA processing and stability, cytoplasmic stress granules, the DNA damage response, and the telomere maintenance. In conclusion, our results shed new light on Dsup-mediated protective mechanisms and increases our knowledge of the molecular machineries of extraordinary protection against UV-C stress.
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Affiliation(s)
- Enxhi Shaba
- Functional Proteomics Lab, Department of Life Sciences, University of Siena, 53100 Siena, Italy
| | - Claudia Landi
- Functional Proteomics Lab, Department of Life Sciences, University of Siena, 53100 Siena, Italy
| | - Carlotta Marzocchi
- Department of Medical, Surgical and Neurological Sciences, University of Siena, 53100 Siena, Italy
| | - Lorenza Vantaggiato
- Functional Proteomics Lab, Department of Life Sciences, University of Siena, 53100 Siena, Italy
| | - Luca Bini
- Functional Proteomics Lab, Department of Life Sciences, University of Siena, 53100 Siena, Italy
| | - Claudia Ricci
- Department of Medical, Surgical and Neurological Sciences, University of Siena, 53100 Siena, Italy
| | - Silvia Cantara
- Department of Medical, Surgical and Neurological Sciences, University of Siena, 53100 Siena, Italy
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2
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Huang ZC, Huang J, Huang CK, Hou Y, Zhu B. Euchromatic histone lysine methyltransferase 2 facilitates radioresistance in prostate cancer by repressing endoplasmic reticulum protein 29 transcription. Kaohsiung J Med Sci 2023. [PMID: 36825520 DOI: 10.1002/kjm2.12661] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 01/12/2023] [Accepted: 01/31/2023] [Indexed: 02/25/2023] Open
Abstract
Prostate cancer is one of the most common cancers in men. This study was conducted to investigate the role of euchromatic histone lysine methyltransferase 2 (EHMT2) and endoplasmic reticulum protein 29 (ERP29) in the progression of radioresistance in prostate cancer. The expression of EHMT2 and ERP29 in prostate cancer cells and during the progression of radioresistance was detected using quantitative reverse transcription-polymerase chain reaction and western blotting, and the interaction between EHMT2 and ERP29 was investigated. The proliferation of transfected cells under x-ray irradiation was determined using the methyl thiazolyl tetrazolium and colony formation assays. Flow cytometry was used to analyze the apoptosis of the transfected cells under x-ray irradiation. Nude mice were subcutaneously injected with prostate cancer (DU145) cells stably transfected with sh-ERP29 or sh-NC. The effect of ERP29 expression on radioresistance in nude mice was assessed by x-ray irradiation. The expression of EHMT2 was upregulated and that of ERP29 was downregulated in prostate cancer cells during radioresistance progression. EHMT2 downregulation suppressed radioresistance in DU145 and androgen-sensitive prostate cancer (LNCaP) cells. In irradiated DU145 cells, EHMT2 inhibition decreased the number of colonies and accelerated apoptosis. The transcription of ERP29 was suppressed by EHMT2 by upregulating H3K9me2 and downregulating H3K4me3, thereby regulating radioresistance in prostate cancer cells. In addition, the downregulation of ERP29 promoted the progression of radioresistance in prostate cancer cells in nude mice. EHMT2 promotes radioresistance in prostate cancer cells by repressing ERP29 transcription.
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Affiliation(s)
- Zhi-Chao Huang
- Department of Urology, Second Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - Jun Huang
- Department of Urology, Second Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - Chang-Kun Huang
- Department of Urology, Second Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - Yi Hou
- Department of Urology, Second Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - Bin Zhu
- Department of Urology, Second Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
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3
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Mouawad R, Neamati N. Inhibition of Protein Disulfide Isomerase (PDIA1) Leads to Proteasome-Mediated Degradation of Ubiquitin-like PHD and RING Finger Domain-Containing Protein 1 (UHRF1) and Increased Sensitivity of Glioblastoma Cells to Topoisomerase II Inhibitors. ACS Pharmacol Transl Sci 2022; 6:100-114. [PMID: 36654750 PMCID: PMC9841782 DOI: 10.1021/acsptsci.2c00186] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Indexed: 12/12/2022]
Abstract
Glioblastoma (GBM) is the most aggressive brain tumor, and the prognosis remains poor with current available treatments. PDIA1 is considered a promising therapeutic target in GBM. In this study, we demonstrate that targeting PDIA1 results in increased GBM cell death by topoisomerase II (Top-II) inhibitors resulting in proteasome-mediated degradation of the oncogenic protein UHRF1. Combination of the PDIA1 inhibitor, bepristat-2a, produces strong synergy with doxorubicin, etoposide, and mitoxantrone in GBM and other cancer cell lines. Our bioinformatics analysis of multiple datasets revealed downregulation of UHRF1, upon PDIA1 inhibition. In addition, PDIA1 inhibition results in proteasome-mediated degradation of UHRF1 protein. Interestingly, treatment of GBM cells with bepristat-2a results in increased apoptosis and resistance to ferroptosis. Our findings emphasize the importance of PDIA1 as a therapeutic target in GBM and present a promising new therapeutic approach using Top-II inhibitors for GBM treatment.
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4
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Pan Y, Tang W, Fan W, Zhang J, Chen X. Development of nanotechnology-mediated precision radiotherapy for anti-metastasis and radioprotection. Chem Soc Rev 2022; 51:9759-9830. [DOI: 10.1039/d1cs01145f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Radiotherapy (RT), including external beam RT and internal radiation therapy, uses high-energy ionizing radiation to kill tumor cells.
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Affiliation(s)
- Yuanbo Pan
- Department of Neurosurgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, China
- Key Laboratory of Precise Treatment and Clinical Translational Research of Neurological Diseases, Hangzhou, 310009, Zhejiang, China
- Clinical Research Center for Neurological Diseases of Zhejiang Province, Hangzhou, 310009, China
- Departments of Diagnostic Radiology, Surgery, Chemical and Biomolecular Engineering, and Biomedical Engineering, Yong Loo Lin School of Medicine and College of Design and Engineering, National University of Singapore, Singapore 119074, Singapore
| | - Wei Tang
- Departments of Pharmacy and Diagnostic Radiology, Nanomedicine Translational Research Program, Faculty of Science and Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117544, Singapore
| | - Wenpei Fan
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases, Center of Advanced Pharmaceuticals and Biomaterials, China Pharmaceutical University, Nanjing, 210009, China
| | - Jianmin Zhang
- Department of Neurosurgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, China
- Key Laboratory of Precise Treatment and Clinical Translational Research of Neurological Diseases, Hangzhou, 310009, Zhejiang, China
- Clinical Research Center for Neurological Diseases of Zhejiang Province, Hangzhou, 310009, China
| | - Xiaoyuan Chen
- Departments of Diagnostic Radiology, Surgery, Chemical and Biomolecular Engineering, and Biomedical Engineering, Yong Loo Lin School of Medicine and College of Design and Engineering, National University of Singapore, Singapore 119074, Singapore
- Clinical Imaging Research Centre, Centre for Translational Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117599, Singapore
- Nanomedicine Translational Research Program, NUS Center for Nanomedicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
- Institute of Molecular and Cell Biology, Agency for Science, Technology, and Research (A*STAR), 61 Biopolis Drive, Proteos, Singapore, 138673, Singapore
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5
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Huang J, Jing M, Chen X, Gao Y, Hua H, Pan C, Wu J, Wang X, Chen X, Gao Y, Xu C, Li P. ERp29 forms a feedback regulation loop with microRNA-135a-5p and promotes progression of colorectal cancer. Cell Death Dis 2021; 12:965. [PMID: 34667160 PMCID: PMC8526686 DOI: 10.1038/s41419-021-04252-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 09/21/2021] [Accepted: 10/04/2021] [Indexed: 01/21/2023]
Abstract
Expression of endoplasmic reticulum (ER) stress-associated genes is often dysregulated in cancer progression. ER protein 29 (ERp29) is abnormally expressed in many neoplasms and plays an important role in tumorigenesis. Here, we showed ERp29 is a novel target for microRNA-135a-5p (miR-135a-5p) to inhibit the progression of colorectal cancer (CRC); correspondingly, ERp29 acts as an oncoprotein in CRC by promoting proliferation and metastasis of CRC cells, and suppressing apoptosis of the cells. More importantly, we found that miR-135a-5p expression is reversely upregulated by ERp29 through suppressing IL-1β-elicited methylation of miR-135a-5p promoter region, a process for enterocyte to maintain a balance between miR-135a-5p and ERp29 but dysregulated in CRC. Our study reveals a novel feedback regulation loop between miR-135a-5p and ERp29 that is critical for maintaining appropriate level of each of them, but partially imbalanced in CRC, resulting in abnormal expression of miR-135a-5p and ERp29, which further accelerates CRC progression. We provide supporting evidence for ERp29 and miR-135a-5p as potential biomarkers for diagnosis and treatment of CRC.
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Affiliation(s)
- Jiebin Huang
- Department of Pediatrics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Ruijin Er Rd.197, Shanghai, 200025, China
| | - Mengxia Jing
- Department of Pediatrics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Ruijin Er Rd.197, Shanghai, 200025, China
| | - Xixi Chen
- Department of Pediatrics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Ruijin Er Rd.197, Shanghai, 200025, China
| | - Yuanqi Gao
- Department of Pediatrics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Ruijin Er Rd.197, Shanghai, 200025, China
| | - Huiying Hua
- Department of Pediatrics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Ruijin Er Rd.197, Shanghai, 200025, China
| | - Chun Pan
- Department of Pediatrics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Ruijin Er Rd.197, Shanghai, 200025, China
| | - Jing Wu
- Department of Oncology, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
| | - Xinqiong Wang
- Department of Pediatrics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Ruijin Er Rd.197, Shanghai, 200025, China
| | - Xuehua Chen
- Department of Pediatrics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Ruijin Er Rd.197, Shanghai, 200025, China
| | - Yujing Gao
- NHC Key Laboratory of Metabolic Cardiovascular Diseases Research, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, 750004, China.
| | - Chundi Xu
- Department of Pediatrics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Ruijin Er Rd.197, Shanghai, 200025, China.
| | - Pu Li
- Department of Pediatrics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Ruijin Er Rd.197, Shanghai, 200025, China.
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6
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Pini T, Haywood M, McCallie B, Lane SL, Schoolcraft WB, Katz-Jaffe M. Liquid chromatography-tandem mass spectrometry reveals an active response to DNA damage in human spermatozoa. F&S SCIENCE 2021; 2:153-163. [PMID: 35559750 DOI: 10.1016/j.xfss.2021.03.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 02/23/2021] [Accepted: 03/13/2021] [Indexed: 01/07/2023]
Abstract
OBJECTIVE To investigate how endogenously elevated DNA fragmentation alters the human sperm proteome, and whether this fragmentation contributes to genomic deletions. DESIGN Research study. SETTING Commercial fertility clinic. PATIENT(S) Men with low (0%-4%, n = 7) or high (≥16%, n = 6) sperm DNA fragmentation, as assessed by terminal deoxynucleotidyl transferase dUTP nick end labeling assay. INTERVENTION(S) None. MAIN OUTCOME MEASURE(S) Global sperm proteome, single-nucleotide polymorphism genotyping array. RESULT(S) A total of 78 significantly differentially abundant proteins (30 decreased, 48 increased) were observed in control vs. high DNA damage samples. DNA damage resulted in robust proteomic responses, including markers of oxidative stress and apoptosis, DNA damage repair proteins, and transcription/translation and protein turnover machinery. Several key sperm functional proteins were significantly decreased in ejaculates with high DNA damage. We were unable to substantiate a link between increased DNA fragmentation and genomic deletions in human spermatozoa. CONCLUSION(S) Developing human spermatozoa initiate an active transcriptional response to endogenous DNA damage, which manifests as alterations in the sperm proteome.
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Affiliation(s)
- Taylor Pini
- Colorado Center for Reproductive Medicine, Lone Tree, Colorado.
| | - Mary Haywood
- Colorado Center for Reproductive Medicine, Lone Tree, Colorado
| | - Blair McCallie
- Colorado Center for Reproductive Medicine, Lone Tree, Colorado
| | - Sydney L Lane
- Colorado Center for Reproductive Medicine, Lone Tree, Colorado
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7
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Romero-Garcia S, Prado-Garcia H, Carlos-Reyes A. Role of DNA Methylation in the Resistance to Therapy in Solid Tumors. Front Oncol 2020; 10:1152. [PMID: 32850327 PMCID: PMC7426728 DOI: 10.3389/fonc.2020.01152] [Citation(s) in RCA: 80] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Accepted: 06/08/2020] [Indexed: 12/12/2022] Open
Abstract
Despite the recent advances in chemotherapeutic treatments against cancer, some types of highly aggressive and invasive cancer develop drug resistance against conventional therapies, which continues to be a major problem in the fight against cancer. In recent years, studies of alterations of DNA methylome have given us a better understanding of the role of DNA methylation in the development of tumors. DNA methylation (DNAm) is an epigenetic change that promotes the covalent transfer of methyl groups to DNA. This process suppresses gene expression through the modulation of the transcription machinery access to the chromatin or through the recruitment of methyl binding proteins. DNAm is regulated mainly by DNA methyltransferases. Aberrant DNAm contributes to tumor progression, metastasis, and resistance to current anti-tumoral therapies. Aberrant DNAm may occur through hypermethylation in the promoter regions of tumor suppressor genes, which leads to their silencing, while hypomethylation in the promoter regions of oncogenes can activate them. In this review, we discuss the impact of dysregulated methylation in certain genes, which impact signaling pathways associated with apoptosis avoidance, metastasis, and resistance to therapy. The analysis of methylome has revealed patterns of global methylation, which regulate important signaling pathways involved in therapy resistance in different cancer types, such as breast, colon, and lung cancer, among other solid tumors. This analysis has provided gene-expression signatures of methylated region-specific DNA that can be used to predict the treatment outcome in response to anti-cancer therapy. Additionally, changes in cancer methylome have been associated with the acquisition of drug resistance. We also review treatments with demethylating agents that, in combination with standard therapies, seem to be encouraging, as tumors that are in early stages can be successfully treated. On the other hand, tumors that are in advanced stages can be treated with these combination schemes, which could sensitize tumor cells that are resistant to the therapy. We propose that rational strategies, which combine specific demethylating agents with conventional treatment, may improve overall survival in cancer patients.
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Affiliation(s)
- Susana Romero-Garcia
- Department of Chronic-Degenerative Diseases, National Institute of Respiratory Diseases "Ismael Cosío Villegas", Mexico City, Mexico
| | - Heriberto Prado-Garcia
- Department of Chronic-Degenerative Diseases, National Institute of Respiratory Diseases "Ismael Cosío Villegas", Mexico City, Mexico
| | - Angeles Carlos-Reyes
- Department of Chronic-Degenerative Diseases, National Institute of Respiratory Diseases "Ismael Cosío Villegas", Mexico City, Mexico
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8
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Zou S, Dong R, Zou P, Meng X, Zhang T, Luo L, Li N, Wang Y, Wang J, Wang T, Zhang Y, Chen M, Zhou C, Han F. ERp29 affects the migratory and invasive ability of human extravillous trophoblast HTR-8/SVneo cells via modulating the epithelial-mesenchymal transition. J Biochem Mol Toxicol 2020; 34:e22454. [PMID: 31981282 DOI: 10.1002/jbt.22454] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 01/01/2020] [Accepted: 01/13/2020] [Indexed: 01/15/2023]
Abstract
Dysfunction of trophoblast metastasis into the endometrium is the main cause of pre-eclampsia (PE); however, the factors affecting this process are still unclear. In this study, we found that endoplasmic reticulum protein 29 (ERp29), one molecular chaperone of the endoplasmic reticulum, was aberrantly upregulated in the placenta of pre-eclamptic patients compared with healthy controls. Then, an in vitro study using human extravillous trophoblast HTR-8/SVneo cells showed that ERp29 upregulation could inhibit the migratory and invasive ability of HTR-8/SVneo cells, while ERp29 downregulation had the opposite effect. Mechanical experiments confirmed that ERp29 blocked trophoblast metastasis via inhibiting the process of epithelial-mesenchymal transition and affecting the Wnt/β-catenin signaling pathway. In conclusion, this study revealed the important role of ERp29 in trophoblast metastasis and improved the mechanical understanding of PE occurrence.
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Affiliation(s)
- Shaohan Zou
- Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Ruirui Dong
- Department of Clinical Laboratory, The Affiliated Wuxi Maternity and Child Health Care Hospital of Nanjing Medical University, Wuxi, Jiangsu, China
| | - Ping Zou
- Department of Clinical Laboratory, The Affiliated Wuxi Maternity and Child Health Care Hospital of Nanjing Medical University, Wuxi, Jiangsu, China
| | - Xina Meng
- Department of Clinical Laboratory, The Affiliated Wuxi Maternity and Child Health Care Hospital of Nanjing Medical University, Wuxi, Jiangsu, China
| | - Ting Zhang
- Department of Clinical Laboratory, The Affiliated Wuxi Maternity and Child Health Care Hospital of Nanjing Medical University, Wuxi, Jiangsu, China
| | - Liang Luo
- Department of Critical Care Medicine, The Affiliated Wuxi No. 2 People's Hospital of Nanjing Medical University, Wuxi, Jiangsu, China
| | - Na Li
- Department of Clinical Laboratory, The Affiliated Wuxi Maternity and Child Health Care Hospital of Nanjing Medical University, Wuxi, Jiangsu, China
| | - Yao Wang
- Department of Clinical Laboratory, The Affiliated Wuxi Maternity and Child Health Care Hospital of Nanjing Medical University, Wuxi, Jiangsu, China
| | - Jing Wang
- Department of Clinical Laboratory, The Affiliated Wuxi Maternity and Child Health Care Hospital of Nanjing Medical University, Wuxi, Jiangsu, China
| | - Tiejun Wang
- Department of Clinical Laboratory, The Affiliated Wuxi Maternity and Child Health Care Hospital of Nanjing Medical University, Wuxi, Jiangsu, China
| | - Yan Zhang
- Department of Clinical Laboratory, The Affiliated Wuxi Maternity and Child Health Care Hospital of Nanjing Medical University, Wuxi, Jiangsu, China
| | - Minjian Chen
- State Key Laboratory of Reproductive Medicine, School of Public Health, Institute of Toxicology, Nanjing Medical University, Nanjing, Jiangsu, China.,Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Conghua Zhou
- School of Computer Science and Telecommunication Engineering, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Fei Han
- School of Computer Science and Telecommunication Engineering, Jiangsu University, Zhenjiang, Jiangsu, China
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9
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Improved detection of common variants in coronary artery disease and blood pressure using a pleiotropy cFDR method. Sci Rep 2019; 9:10340. [PMID: 31316127 PMCID: PMC6637206 DOI: 10.1038/s41598-019-46808-2] [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] [Received: 09/07/2018] [Accepted: 07/04/2019] [Indexed: 11/24/2022] Open
Abstract
Plenty of genome-wide association studies (GWASs) have identified numerous single nucleotide polymorphisms (SNPs) for coronary artery disease (CAD) and blood pressure (BP). However, these SNPs only explain a small proportion of the heritability of two traits/diseases. Although high BP is a major risk factor for CAD, the genetic intercommunity between them remain largely unknown. To recognize novel loci associated with CAD and BP, a genetic-pleiotropy-informed conditional false discovery rate (cFDR) method was applied on two summary statistics of CAD and BP from existing GWASs. Stratified Q-Q and fold enrichment plots showed a high pleiotropic enrichment of SNPs associated with two traits. Adopting a cFDR of 0.05 as a threshold, 55 CAD-associated loci (25 variants being novel) and 47 BP loci (18 variants being novel) were identified, 25 of which were pleiotropic loci (13 variants being novel) for both traits. Among the 32 genes these 25 SNPs were annotated to, 20 genes were newly detected compared to previous GWASs. This study showed the cFDR approach could improve gene discovery by incorporating GWAS datasets of two related traits. These findings may provide novel understanding of etiology relationships between CAD and BP.
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Li X, Cheng T, He Y, Zhou S, Wang Y, Zhang K, Yu P. High glucose regulates ERp29 in hepatocellular carcinoma by LncRNA MEG3-miRNA 483-3p pathway. Life Sci 2019; 232:116602. [PMID: 31251997 DOI: 10.1016/j.lfs.2019.116602] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 06/23/2019] [Accepted: 06/24/2019] [Indexed: 12/11/2022]
Abstract
AIMS Blood glucose dysregulation is an adverse factor in the prognosis of hepatocellular carcinoma (HCC). Endoplasmic reticulum (ER) is thought to be crucial component in the development of cancer and diabetes. This study aimed to investigate the mechanisms of poor outcomes in HCC patients with diabetes. MAIN METHODS ER protein 29 (ERp29) was predicted by proteomics, immunohistochemistry, Western blot, Cell Counting Kit-8 (CCK-8) and cell scratch test were used to identify the expression and biological effects of ERp29 under high glucose (HG) in HCC cells. Bioinformatics found a competing endogenous RNAs (ceRNAs) regulatory network between microRNA-483-3p (miR-483-3p) and Long noncoding RNA (LncRNA MEG3), the above methods also were used to identify their expression, biological effects and their roles of HG on regulation of REp29 in HCC cells, Dual-luciferase reporter assay was carried out to study the interaction of ERp29 with miR-483-3p and miR-483-3p with MEG3. KEY FINDINGS HG upregulated miR-483-3p expression in HCC cells and miR-483-3p overexpression suppressed ERp29 expression and also increased HCC cell proliferation and migration. Furthermore, we found that MEG3 was decreased in HCC cells incubated in medium with high glucose and knockdown of MEG3 downregulated ERp29 expression. Bioinformatics analysis found that MEG3 mediated its protective effects via binding to miR-483-3p. SIGNIFICANCE Overall, our study established a novel regulatory network of LncRNA MEG3/miR483-3p/ERp29 in HCC which may be helpful in better understanding the effect of high glucose on poor prognosis of HCC and in exploring new diagnostic and therapeutic tools for managing HCC in patients with diabetes.
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Affiliation(s)
- Xin Li
- NHC Key Laboratory of Hormones and Development(Tianjn Medical University), Tianjin Key Laboratory of Metabolic Diseases, Tianjn Medical University Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin 300134, China
| | - Ting Cheng
- NHC Key Laboratory of Hormones and Development(Tianjn Medical University), Tianjin Key Laboratory of Metabolic Diseases, Tianjn Medical University Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin 300134, China
| | - Yuan He
- NHC Key Laboratory of Hormones and Development(Tianjn Medical University), Tianjin Key Laboratory of Metabolic Diseases, Tianjn Medical University Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin 300134, China
| | - Saijun Zhou
- NHC Key Laboratory of Hormones and Development(Tianjn Medical University), Tianjin Key Laboratory of Metabolic Diseases, Tianjn Medical University Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin 300134, China
| | - Yao Wang
- NHC Key Laboratory of Hormones and Development(Tianjn Medical University), Tianjin Key Laboratory of Metabolic Diseases, Tianjn Medical University Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin 300134, China
| | - Kai Zhang
- Tianjin Key Laboratory of Medical Epigenetics, 2011 Collaborative Innovation Center of Tianjin for Medical, Epigenetics, Department of Biochemistry and Molecular Biology, Tianjin Medical University, Tianjin, China
| | - Pei Yu
- NHC Key Laboratory of Hormones and Development(Tianjn Medical University), Tianjin Key Laboratory of Metabolic Diseases, Tianjn Medical University Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin 300134, China.
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11
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Guo L, Ma L, Liu C, Lei Y, Tang N, Huang Y, Huang G, Li D, Wang Q, Liu G, Tang M, Jing Z, Deng Y. ERp29 counteracts the suppression of malignancy mediated by endoplasmic reticulum stress and promotes the metastasis of colorectal cancer. Oncol Rep 2018; 41:1603-1615. [PMID: 30569094 PMCID: PMC6365697 DOI: 10.3892/or.2018.6943] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2018] [Accepted: 11/29/2018] [Indexed: 01/11/2023] Open
Abstract
Endoplasmic reticulum protein 29 (ERp29), an endoplasmic reticulum (ER) protein, participates in ER stress (ERS), but little is known about the association of ERp29 with ERS in the metastasis and prognosis of cancerous diseases. The present study revealed that ERp29 was important to ERS and interfered with the malignant behaviors of colorectal cancer (CRC). Experiments in in vitro and in animal models revealed that ERS inhibited the cell growth and suppressed the metastatic capacity of CRC cells, but ERp29 counteracted these effects. Furthermore, it was demonstrated that ERp29 recovered the migration and metastatic behaviors of CRC cells suppressed by ERS, mediated only when it combined with cullin5 (CUL5). ERp29 also relied on CUL5 to promote epithelial-mesenchymal transition. From the immunohistochemical examination of CRC tissues, the high expression of ERp29 was revealed to predict the poor prognosis of 457 CRC cases. The retrospective analysis of the clinicopathological data of patients with CRC was consistent with the results of the in vitro and in vivo experiments. Thus, ERp29 protected CRC cells from ERS-mediated reduction of malignancy to promote metastasis and may be a potential target of medical intervention for CRC therapy.
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Affiliation(s)
- Lili Guo
- Department of Pathology, Nanfang Hospital and School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Lili Ma
- Department of Pathology, Nanfang Hospital and School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Chao Liu
- Department of Pathology and Laboratory Medicine, Guangdong General Hospital and Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, P.R. China
| | - Yan Lei
- Department of Pathology, Nanfang Hospital and School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Na Tang
- Department of Pathology, Shenzhen People's Hospital, Second Clinical Medical College of Jinan University, Shenzhen, Guangdong 518020, P.R. China
| | - Yingxin Huang
- Department of Pathology, Nanfang Hospital and School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Guan Huang
- Department of Pathology, Nanfang Hospital and School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Dazhou Li
- Department of Pathology, Nanfang Hospital and School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Qi Wang
- Department of Pathology, Nanfang Hospital and School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Guanglong Liu
- Department of Pathology, Nanfang Hospital and School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Minshan Tang
- Department of Pathology, Nanfang Hospital and School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Zhiliang Jing
- Department of Pathology, Nanfang Hospital and School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Yongjian Deng
- Department of Pathology, Nanfang Hospital and School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
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Micko ASG, Wöhrer A, Höftberger R, Vila G, Marosi C, Knosp E, Wolfsberger S. MGMT and MSH6 immunoexpression for functioning pituitary macroadenomas. Pituitary 2017; 20:643-653. [PMID: 28900805 PMCID: PMC5655586 DOI: 10.1007/s11102-017-0829-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
PURPOSE Knowledge of biological behavior is crucial for clinical management of functioning pituitary macroadenomas. For recurrent cases unresponsive to standard treatment, temozolomide (TMZ) has been used as a therapeutic alternative. MGMT (O6-methyl-guanine-DNA methyltransferase) and MSH6 (mutS homolog 6) immunoexpression have been linked to the response to TMZ treatment and MGMT immunoexpression has been additionally linked to early recurrence of non-functioning pituitary adenomas. The aim of this study was to assess the prognostic value of MGMT and MSH6 immunoexpression for aggressive functioning pituitary adenomas. METHODS The study cohort comprised a single center series of 76 patients who underwent an operation for functioning pituitary macroadenoma. We retrospectively compared 38 patients with postoperative persistent or recurrent disease with another set of 38 patients who were in endocrine remission. RESULTS Low-to-moderate MGMT immunoexpression (<50%) was significantly more frequent in the group with persistent/recurrent disease than in cases of endocrine remission (66 vs. 21%, p < 0.001). Furthermore, adenomas with low-to-moderate MGMT immunoexpression were significantly more often recurrent (76 vs. 30%, p < 0.001) and invasive (64 vs. 28%, p = 0.002). CONCLUSION In our series, low-to-moderate MGMT immunoexpression was the only marker that significantly correlated with surgical invasiveness and recurrence in functioning pituitary macroadenomas. Therefore, in the future, MGMT status may be considered an additional marker for understanding the biological behavior of pituitary adenomas.
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Affiliation(s)
- Alexander S G Micko
- Department of Neurosurgery, Medical University Vienna, Waehringer Guertel 18-20, 1097, Vienna, Austria
| | - Adelheid Wöhrer
- Institute of Neurology, Medical University Vienna, Vienna, Austria
| | | | - Greisa Vila
- Division of Endocrinology and Metabolism, Department of Internal Medicine III, Medical University Vienna, Vienna, Austria
| | - Christine Marosi
- Division of Oncology, Department of Internal Medicine I, Medical University of Vienna, Vienna, Austria
| | - Engelbert Knosp
- Department of Neurosurgery, Medical University Vienna, Waehringer Guertel 18-20, 1097, Vienna, Austria.
| | - Stefan Wolfsberger
- Department of Neurosurgery, Medical University Vienna, Waehringer Guertel 18-20, 1097, Vienna, Austria
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Zhang Y, Hu Y, Wang JL, Yao H, Wang H, Liang L, Li C, Shi H, Chen Y, Fang JY, Xu J. Proteomic identification of ERP29 as a key chemoresistant factor activated by the aggregating p53 mutant Arg282Trp. Oncogene 2017; 36:5473-5483. [DOI: 10.1038/onc.2017.152] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2016] [Revised: 03/12/2017] [Accepted: 04/14/2017] [Indexed: 12/28/2022]
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14
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Kindts I, Buelens P, Laenen A, Van Limbergen E, Janssen H, Wildiers H, Weltens C. Omitting radiation therapy in women with triple-negative breast cancer leads to worse breast cancer-specific survival. Breast 2016; 32:18-25. [PMID: 28012411 DOI: 10.1016/j.breast.2016.12.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Revised: 12/08/2016] [Accepted: 12/13/2016] [Indexed: 12/20/2022] Open
Abstract
PURPOSE To examine locoregional recurrence (LRR) and breast cancer-specific survival (BCSS) after breast-conserving therapy (BCT) or mastectomy (ME) with or without radiation therapy (RT) in triple-negative breast cancer (TNBC). MATERIAL & METHODS We identified non-metastatic TNBC cases from a single institution database. BCT, ME with RT (ME + RT) and ME only were compared with respect to LRR and BCSS. Cox regression models were used to analyze the association between prognostic factors and outcome. RESULTS 439 patients fulfilled the inclusion criteria. Median follow-up was 10.2 years (interquartile range 7.9; 12.4 years). Patients in the BCT (n = 239), ME + RT (n = 116) and ME only (n = 84) group differed with respect to age, pT, pN, lymphovascular invasion, lymph node dissection and chemotherapy administration. Ten-year LRR rates were seven percent, three percent and eight percent for the BCT, ME + RT and ME only group, respectively. pN was associated with LRR. In multivariable analysis LRR were significantly lower in the ME + RT group compared to the BCT and the ME only group (p 0.037 and 0.020, respectively). Ten year BCSS was 87%, 84% and 75% for the BCT, ME + RT and ME only group, respectively. pT, pN, lymph node dissection, lymphovascular invasion and the administration of chemotherapy were associated with BCSS. In multivariable analysis BCSS was significantly lower in the ME only group compared to the BCT group and the ME + RT group (p 0.047 and 0.003, respectively). CONCLUSION TNBC patients treated with ME without adjuvant RT showed significant lower BCSS compared to patients treated with BCT or ME + RT and significant more LRR compared to ME + RT when corrected for known clinicopathological prognostic factors.
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Affiliation(s)
- I Kindts
- KU Leuven - University of Leuven, Department of Oncology, B-3000, Leuven, Belgium; University Hospitals Leuven, Department of Radiation Oncology, Herestraat 49, B-3000, Leuven, Belgium.
| | - P Buelens
- KU Leuven - University of Leuven, Department of Oncology, B-3000, Leuven, Belgium; University Hospitals Leuven, Department of Radiation Oncology, Herestraat 49, B-3000, Leuven, Belgium.
| | - A Laenen
- Leuven Biostatistics and Statistical Bioinformatics Centre (L-Biostat), KU Leuven University, Kapucijnenvoer 35, B-3000, Leuven, Belgium.
| | - E Van Limbergen
- KU Leuven - University of Leuven, Department of Oncology, B-3000, Leuven, Belgium; University Hospitals Leuven, Department of Radiation Oncology, Herestraat 49, B-3000, Leuven, Belgium.
| | - H Janssen
- KU Leuven - University of Leuven, Department of Oncology, B-3000, Leuven, Belgium; University Hospitals Leuven, Department of Radiation Oncology, Herestraat 49, B-3000, Leuven, Belgium.
| | - H Wildiers
- KU Leuven - University of Leuven, Department of Oncology, B-3000, Leuven, Belgium; University Hospitals Leuven, Department of General Medical Oncology, Herestraat 49, B-3000, Leuven, Belgium.
| | - C Weltens
- KU Leuven - University of Leuven, Department of Oncology, B-3000, Leuven, Belgium; University Hospitals Leuven, Department of Radiation Oncology, Herestraat 49, B-3000, Leuven, Belgium.
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Bernier J, Poortmans PMP. Surgery and radiation therapy of triple-negative breast cancers: From biology to clinics. Breast 2016; 28:148-55. [PMID: 27318170 DOI: 10.1016/j.breast.2016.05.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Revised: 05/24/2016] [Accepted: 05/31/2016] [Indexed: 01/02/2023] Open
Abstract
Triple negative breast cancer refers to tumours lacking the expression of the three most used tumour markers, namely oestrogen receptors, progesterone receptors, and human epidermal growth factor receptor 2 (HER2). These cancers are known to carry a more dismal prognosis than the other molecular subtypes. Whether a more aggressive local-regional treatment is warranted or not in patients with triple-negative breast cancer is still a matter of debate. Indeed there remain a number of grey zones with respect to the optimization of the extent and the timing of surgery and radiation therapy (RT) in this patient population, also in consideration of the significant heterogeneity in biological behaviour and response to treatment identified for these tumours. The objective of this review is to provide an insight into the biological and clinical behaviour of triple-negative breast cancers and revisit the most recent advances in their management, focussing on local-regional treatments.
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Affiliation(s)
- Jacques Bernier
- Department of Radiation Oncology, Swiss Medical Network, Genolier, Geneva, Switzerland.
| | - Philip M P Poortmans
- Department of Radiation Oncology, Radboud University Medical Center, Nijmegen, The Netherlands
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