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Yang X, Zhang J, Wang Z, Yao Z, Yang X, Wang X, Zhao X, Xu S. Mitochondria-related HSDL2 is a potential biomarker in temporal lobe epilepsy by modulating astrocytic lipid metabolism. Neurotherapeutics 2024:e00447. [PMID: 39245623 DOI: 10.1016/j.neurot.2024.e00447] [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: 06/20/2024] [Revised: 08/15/2024] [Accepted: 09/01/2024] [Indexed: 09/10/2024] Open
Abstract
Temporal lobe epilepsy (TLE) is the most prevalent type of focal epilepsy in adults. While comprehensive bioinformatics analyses have facilitated the identification of novel biomarkers in animal models, similar efforts are limited for TLE patients. In the current study, a comprehensive analysis using human transcriptomics datasets GSE205661, GSE190451, and GSE186334 was conducted to reveal differentially expressed genes related to mitochondria (Mito-DEGs). Protein-protein interaction (PPI) network and Least Absolute Shrinkage and Selection Operator (LASSO) regression analyses were performed to identify hub genes. Additional GSE127871 and GSE255223 were utilized to establish the association with hippocampal sclerosis (HS) and seizure frequency, respectively. Single-cell RNA analysis, functional investigation, and clinical verification were conducted. Herein, we reported that the Mito-DEGs in human TLE were significantly enriched in metabolic processes. Through PPI and LASSO analysis, HSDL2 was identified as the hub gene, of which diagnostic potential was further confirmed using independent datasets, animal models, and clinical validation. Subsequent single-cell and functional analyses revealed that HSDL2 expression was enriched and upregulated in response to excessive lipid accumulation in astrocytes. Additionally, the diagnostic efficiency of blood HSDL2 was verified in Qilu cohort. Together, our findings highlight the translational potential of HSDL2 as a biomarker and provide a novel therapeutic perspective for human TLE.
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Affiliation(s)
- Xiaxin Yang
- Qilu Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Jianhang Zhang
- Department of Neurosurgery, Qilu Hospital of Shandong University, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, Shandong, China
| | - Zhihao Wang
- Department of Neurology, Qilu Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Zhong Yao
- Department of Neurosurgery, Qilu Hospital of Shandong University, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, Shandong, China
| | - Xue Yang
- Department of Neurology, Qilu Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Xingbang Wang
- Department of Geriatric Medicine, Qilu Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Xiuhe Zhao
- Department of Neurology, Qilu Hospital of Shandong University, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China; Shandong Key Laboratory and Research Institute of Shandong University: Magnetic Field-free Medicine & Functional Imaging and National Medicine-Engineering Interdisciplinary Industry-Education Integration Innovation Platform, Shandong University, Jinan, Shandong, China.
| | - Shuo Xu
- Department of Neurosurgery, Qilu Hospital of Shandong University, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, Shandong, China.
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Ivanov MV, Kopeykina AS, Gorshkov MV. Reanalysis of DIA Data Demonstrates the Capabilities of MS/MS-Free Proteomics to Reveal New Biological Insights in Disease-Related Samples. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2024; 35:1775-1785. [PMID: 38938158 DOI: 10.1021/jasms.4c00134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/29/2024]
Abstract
Data-independent acquisition (DIA) at the shortened data acquisition time is becoming a method of choice for quantitative proteomic applications requiring high throughput analysis of large cohorts of samples. With the advent of the combination of high resolution mass spectrometry with an asymmetric track lossless analyzer, these DIA capabilities were further extended with the recent demonstration of quantitative analyses at the speed of up to hundreds of samples per day. In particular, the proteomic data for the brain samples related to multiple system atrophy disease were acquired using 7 and 28 min chromatography gradients (Guzman et al., Nat. Biotech. 2024). In this work, we applied the recently introduced DirectMS1 method to reanalysis of these data using only MS1 spectra. Both DirectMS1 and DIA results were matched against long gradient DDA analysis from the earlier study of the same sample cohort. While the quantitation efficiency of DirectMS1 was comparable with DIA on the same data sets, we found an additional five proteins of biological significance relevant to the analyzed tissue samples. Among the findings, DirectMS1 was able to detect decreased caspase activity for Vimentin protein in the multiple system atrophy samples missed by the MS/MS-based quantitation methods. Our study suggests that DirectMS1 can be an efficient MS1-only addition to the analysis of DIA data in high-throughput quantitative proteomic studies.
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Affiliation(s)
- Mark V Ivanov
- V. L. Talrose Institute for Energy Problems of Chemical Physics, N. N. Semenov Federal Research Center of Chemical Physics, Russian Academy of Sciences, Moscow 119334, Russia
| | - Anna S Kopeykina
- V. L. Talrose Institute for Energy Problems of Chemical Physics, N. N. Semenov Federal Research Center of Chemical Physics, Russian Academy of Sciences, Moscow 119334, Russia
| | - Mikhail V Gorshkov
- V. L. Talrose Institute for Energy Problems of Chemical Physics, N. N. Semenov Federal Research Center of Chemical Physics, Russian Academy of Sciences, Moscow 119334, Russia
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3
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Samson N, Bosoi CR, Roy C, Turcotte L, Tribouillard L, Mouchiroud M, Berthiaume L, Trottier J, Silva HCG, Guerbette T, Plata-Gómez AB, Besse-Patin A, Montoni A, Ilacqua N, Lamothe J, Citron YR, Gélinas Y, Gobeil S, Zoncu R, Caron A, Morissette M, Pellegrini L, Rochette PJ, Estall JL, Efeyan A, Shum M, Audet-Walsh É, Barbier O, Marette A, Laplante M. HSDL2 links nutritional cues to bile acid and cholesterol homeostasis. SCIENCE ADVANCES 2024; 10:eadk9681. [PMID: 38820148 PMCID: PMC11141617 DOI: 10.1126/sciadv.adk9681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 04/29/2024] [Indexed: 06/02/2024]
Abstract
In response to energy and nutrient shortage, the liver triggers several catabolic processes to promote survival. Despite recent progress, the precise molecular mechanisms regulating the hepatic adaptation to fasting remain incompletely characterized. Here, we report the identification of hydroxysteroid dehydrogenase-like 2 (HSDL2) as a mitochondrial protein highly induced by fasting. We show that the activation of PGC1α-PPARα and the inhibition of the PI3K-mTORC1 axis stimulate HSDL2 expression in hepatocytes. We found that HSDL2 depletion decreases cholesterol conversion to bile acids (BAs) and impairs FXR activity. HSDL2 knockdown also reduces mitochondrial respiration, fatty acid oxidation, and TCA cycle activity. Bioinformatics analyses revealed that hepatic Hsdl2 expression positively associates with the postprandial excursion of various BA species in mice. We show that liver-specific HSDL2 depletion affects BA metabolism and decreases circulating cholesterol levels upon refeeding. Overall, our report identifies HSDL2 as a fasting-induced mitochondrial protein that links nutritional signals to BAs and cholesterol homeostasis.
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Affiliation(s)
- Nolwenn Samson
- Centre de Recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec (CRIUCPQ), Université Laval, Québec, QC, Canada
- Centre de recherche sur le cancer de l’Université Laval, Université Laval, Québec, QC, Canada
| | - Cristina R. Bosoi
- Centre de Recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec (CRIUCPQ), Université Laval, Québec, QC, Canada
| | - Christian Roy
- Centre de Recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec (CRIUCPQ), Université Laval, Québec, QC, Canada
| | - Laurie Turcotte
- Centre de Recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec (CRIUCPQ), Université Laval, Québec, QC, Canada
| | - Laura Tribouillard
- Centre de Recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec (CRIUCPQ), Université Laval, Québec, QC, Canada
- Centre de recherche sur le cancer de l’Université Laval, Université Laval, Québec, QC, Canada
| | - Mathilde Mouchiroud
- Centre de Recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec (CRIUCPQ), Université Laval, Québec, QC, Canada
- Centre de recherche sur le cancer de l’Université Laval, Université Laval, Québec, QC, Canada
| | - Line Berthiaume
- Centre de recherche sur le cancer de l’Université Laval, Université Laval, Québec, QC, Canada
- Centre de recherche du Centre Hospitalier Universitaire (CHU) de Québec-Université Laval, Axe Endocrinologie et néphrologie, Québec, QC, Canada
| | - Jocelyn Trottier
- Centre de recherche du Centre Hospitalier Universitaire (CHU) de Québec-Université Laval, Axe Endocrinologie et néphrologie, Québec, QC, Canada
| | - Heitor C. G. Silva
- Centre de recherche du Centre Hospitalier Universitaire (CHU) de Québec-Université Laval, Axe Endocrinologie et néphrologie, Québec, QC, Canada
- Faculté de médecine, Université Laval, Québec, QC, Canada
| | - Thomas Guerbette
- Centre de recherche du Centre Hospitalier Universitaire (CHU) de Québec-Université Laval, Axe Endocrinologie et néphrologie, Québec, QC, Canada
- Faculté de médecine, Université Laval, Québec, QC, Canada
| | - Ana Belén Plata-Gómez
- Metabolism and Cell Signaling Laboratory, Spanish National Cancer Research Centre (CNIO), Madrid, Spain
| | - Aurèle Besse-Patin
- Institut de recherches cliniques de Montréal (IRCM), Montréal, QC, Canada
| | - Alicia Montoni
- Axe Médecine régénératrice, Centre de Recherche du CHU de Québec-Université Laval, Hôpital du Saint-Sacrement, Québec, QC, Canada
| | - Nicolò Ilacqua
- Faculté de médecine, Université Laval, Québec, QC, Canada
- Centre de recherche CERVO, Québec, QC, Canada
| | - Jennifer Lamothe
- Centre de Recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec (CRIUCPQ), Université Laval, Québec, QC, Canada
| | - Yemima R. Citron
- Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA, USA
- Innovative Genomics Initiative at the University of California, Berkeley, Berkeley, CA, USA
| | - Yves Gélinas
- Centre de Recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec (CRIUCPQ), Université Laval, Québec, QC, Canada
| | | | - Roberto Zoncu
- Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA, USA
- Innovative Genomics Initiative at the University of California, Berkeley, Berkeley, CA, USA
| | - Alexandre Caron
- Centre de Recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec (CRIUCPQ), Université Laval, Québec, QC, Canada
- Faculté de Pharmacie, Université Laval, Québec, QC, Canada
| | - Mathieu Morissette
- Centre de Recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec (CRIUCPQ), Université Laval, Québec, QC, Canada
- Faculté de médecine, Université Laval, Québec, QC, Canada
| | - Luca Pellegrini
- Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, QC, Canada
| | - Patrick J. Rochette
- Faculté de médecine, Université Laval, Québec, QC, Canada
- Axe Médecine régénératrice, Centre de Recherche du CHU de Québec-Université Laval, Hôpital du Saint-Sacrement, Québec, QC, Canada
- Département d’Ophtalmologie et ORL – chirurgie cervico-faciale, Université Laval, Québec, QC, Canada
| | - Jennifer L. Estall
- Institut de recherches cliniques de Montréal (IRCM), Montréal, QC, Canada
- Faculté de médecine, Université de Montréal, Montréal, QC, Canada
| | - Alejo Efeyan
- Metabolism and Cell Signaling Laboratory, Spanish National Cancer Research Centre (CNIO), Madrid, Spain
| | - Michael Shum
- Centre de recherche du Centre Hospitalier Universitaire (CHU) de Québec-Université Laval, Axe Endocrinologie et néphrologie, Québec, QC, Canada
- Faculté de médecine, Université Laval, Québec, QC, Canada
| | - Étienne Audet-Walsh
- Centre de recherche sur le cancer de l’Université Laval, Université Laval, Québec, QC, Canada
- Centre de recherche du Centre Hospitalier Universitaire (CHU) de Québec-Université Laval, Axe Endocrinologie et néphrologie, Québec, QC, Canada
- Faculté de médecine, Université Laval, Québec, QC, Canada
| | - Olivier Barbier
- Centre de recherche du Centre Hospitalier Universitaire (CHU) de Québec-Université Laval, Axe Endocrinologie et néphrologie, Québec, QC, Canada
- Faculté de Pharmacie, Université Laval, Québec, QC, Canada
| | - André Marette
- Centre de Recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec (CRIUCPQ), Université Laval, Québec, QC, Canada
- Faculté de médecine, Université Laval, Québec, QC, Canada
| | - Mathieu Laplante
- Centre de Recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec (CRIUCPQ), Université Laval, Québec, QC, Canada
- Centre de recherche sur le cancer de l’Université Laval, Université Laval, Québec, QC, Canada
- Faculté de médecine, Université Laval, Québec, QC, Canada
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Liu YA, Liu Y, Tu J, Shi Y, Pang J, Huang Q, Wang X, Lin Z, Zhao Y, Wang W, Peng J, Wu W. ABCD1 as a Novel Diagnostic Marker for Solid Pseudopapillary Neoplasm of the Pancreas. Am J Surg Pathol 2024; 48:511-520. [PMID: 38567813 PMCID: PMC11020129 DOI: 10.1097/pas.0000000000002205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/18/2024]
Abstract
The diagnosis of solid pseudopapillary neoplasm of the pancreas (SPN) can be challenging due to potential confusion with other pancreatic neoplasms, particularly pancreatic neuroendocrine tumors (NETs), using current pathological diagnostic markers. We conducted a comprehensive analysis of bulk RNA sequencing data from SPNs, NETs, and normal pancreas, followed by experimental validation. This analysis revealed an increased accumulation of peroxisomes in SPNs. Moreover, we observed significant upregulation of the peroxisome marker ABCD1 in both primary and metastatic SPN samples compared with normal pancreas and NETs. To further investigate the potential utility of ABCD1 as a diagnostic marker for SPN via immunohistochemistry staining, we conducted verification in a large-scale patient cohort with pancreatic tumors, including 127 SPN (111 primary, 16 metastatic samples), 108 NET (98 nonfunctional pancreatic neuroendocrine tumor, NF-NET, and 10 functional pancreatic neuroendocrine tumor, F-NET), 9 acinar cell carcinoma (ACC), 3 pancreatoblastoma (PB), 54 pancreatic ductal adenocarcinoma (PDAC), 20 pancreatic serous cystadenoma (SCA), 19 pancreatic mucinous cystadenoma (MCA), 12 pancreatic ductal intraepithelial neoplasia (PanIN) and 5 intraductal papillary mucinous neoplasm (IPMN) samples. Our results indicate that ABCD1 holds promise as an easily applicable diagnostic marker with exceptional efficacy (AUC=0.999, sensitivity=99.10%, specificity=100%) for differentiating SPN from NET and other pancreatic neoplasms through immunohistochemical staining.
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Affiliation(s)
- Ying-ao Liu
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing
- State Key Laboratory of Complex and Severe and Rare Diseases, Beijing
| | - Yuanhao Liu
- Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing
| | - Jiajuan Tu
- Department of Statistics, The Chinese University of Hong Kong, Sha Tin, Hong Kong SAR
| | - Yihong Shi
- Department of Basic Medical Sciences, School of Medicine, Tsinghua University, Beijing
- Tsinghua-Peking Joint Center for Life Sciences, Beijing
| | - Junyi Pang
- Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing
| | - Qi Huang
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing
- State Key Laboratory of Complex and Severe and Rare Diseases, Beijing
| | - Xun Wang
- Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing
| | - Zhixiang Lin
- Department of Statistics, The Chinese University of Hong Kong, Sha Tin, Hong Kong SAR
| | - Yupei Zhao
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing
- State Key Laboratory of Complex and Severe and Rare Diseases, Beijing
- Department of Basic Medical Sciences, School of Medicine, Tsinghua University, Beijing
- Tsinghua-Peking Joint Center for Life Sciences, Beijing
| | - Wenze Wang
- Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing
- Molecular Pathology Research Center, Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing
| | - Junya Peng
- State Key Laboratory of Complex and Severe and Rare Diseases, Beijing
- Institute of Clinical Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Wenming Wu
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing
- State Key Laboratory of Complex and Severe and Rare Diseases, Beijing
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Qin X, Wang B, Lu X, Song Y, Wang W. Identification and Validation of a PEX5-Dependent Signature for Prognostic Prediction in Glioma. Biomolecules 2024; 14:314. [PMID: 38540734 PMCID: PMC10967733 DOI: 10.3390/biom14030314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 02/22/2024] [Accepted: 03/04/2024] [Indexed: 04/04/2024] Open
Abstract
Gliomas, the most prevalent and lethal form of brain cancer, are known to exhibit metabolic alterations that facilitate tumor growth, invasion, and resistance to therapies. Peroxisomes, essential organelles responsible for fatty acid oxidation and reactive oxygen species (ROS) homeostasis, rely on the receptor PEX5 for the import of metabolic enzymes into their matrix. However, the prognostic significance of peroxisomal enzymes for glioma patients remains unclear. In this study, we elucidate that PEX5 is indispensable for the cell growth, migration, and invasion of glioma cells. We establish a robust prognosis model based on the expression of peroxisomal enzymes, whose localization relies on PEX5. This PEX5-dependent signature not only serves as a robust prognosis model capable of accurately predicting outcomes for glioma patients, but also effectively distinguishes several clinicopathological features, including the grade, isocitrate dehydrogenase (IDH) mutation, and 1p19q codeletion status. Furthermore, we developed a nomogram that integrates the prognostic model with other clinicopathological factors, demonstrating highly accurate performance in estimating patient survival. Patients classified into the high-risk group based on our prognostic model exhibited an immunosuppressive microenvironment. Finally, our validation reveals that the elevated expression of GSTK1, an antioxidant enzyme within the signature, promotes the cell growth and migration of glioma cells, with this effect dependent on the peroxisomal targeting signal recognized by PEX5. These findings identify the PEX5-dependent signature as a promising prognostic tool for gliomas.
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Affiliation(s)
| | | | | | | | - Wei Wang
- Department of Human Anatomy, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430070, China
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6
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Ma S, Ma Y, Qi F, Lei J, Chen F, Sun W, Wang D, Zhou S, Liu Z, Lu Z, Zhang D. HSDL2 knockdown promotes the progression of cholangiocarcinoma by inhibiting ferroptosis through the P53/SLC7A11 axis. World J Surg Oncol 2023; 21:293. [PMID: 37718459 PMCID: PMC10506268 DOI: 10.1186/s12957-023-03176-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 09/09/2023] [Indexed: 09/19/2023] Open
Abstract
BACKGROUND Human hydroxysteroid dehydrogenase-like 2 (HSDL2), which regulates cancer progression, is involved in lipid metabolism. However, the role of HSDL2 in cholangiocarcinoma (CCA) and the mechanism by which it regulates CCA progression by modulating ferroptosis are unclear. METHODS HSDL2 expression levels in CCA cells and tissues were determined by quantitative real-time polymerase chain reaction (qRT-PCR), western blotting, and immunohistochemistry. The overall survival and disease-free survival of patients with high vs. low HSDL2 expression were evaluated using Kaplan-Meier curves. The proliferation, migration, and invasion of CCA cells were assessed using Cell Counting Kit-8, colony formation, 5-ethynyl-2'-deoxyuridine DNA synthesis, and transwell assays. The effect of p53 on tumor growth was explored using a xenograft mouse model. The expression of SLC7A11 in patients with CCA was analyzed using immunofluorescence. Ferroptosis levels were measured by flow cytometry, malondialdehyde assay, and glutathione assay. HSDL2-regulated signaling pathways were analyzed by transcriptome sequencing. The correlation between p53 and SLC7A11 was assessed using bioinformatics and luciferase reporter assays. RESULTS HSDL2 expression was lower in primary human CCA tissues than in matched adjacent non-tumorous bile duct tissues. HSDL2 downregulation was a significant risk factor for shorter overall survival and disease-free survival in patients with CCA. In addition, HSDL2 knockdown enhanced the proliferation, migration, and invasion of CCA cells. The transcriptome analysis of HSDL2 knockdown cells showed that differentially expressed genes were significantly enriched in the p53 signaling pathway, and HSDL2 downregulation increased SLC7A11 levels. These findings were consistent with the qRT-PCR and western blotting results. Other experiments showed that p53 expression modulated the effect of HSDL2 on CCA proliferation in vivo and in vitro and that p53 bound to the SLC7A11 promoter to inhibit ferroptosis. CONCLUSIONS HSDL2 knockdown promotes CCA progression by inhibiting ferroptosis through the p53/SLC7A11 axis. Thus, HSDL2 is a potential prognostic marker and therapeutic target for CCA.
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Affiliation(s)
- Shuoshuo Ma
- Department of General Surgery, The First Affiliated Hospital of Bengbu Medical College, NO. 287, Changhuai Road, Longzihu district, Bengbu, 233000, Anhui, China
- Liver Transplantation Center and Hepatobiliary and Pancreatic Surgery, Sichuan Cancer Hospital and Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Yang Ma
- Department of General Surgery, The First Affiliated Hospital of Bengbu Medical College, NO. 287, Changhuai Road, Longzihu district, Bengbu, 233000, Anhui, China
| | - Feiyu Qi
- Department of General Surgery, The First Affiliated Hospital of Bengbu Medical College, NO. 287, Changhuai Road, Longzihu district, Bengbu, 233000, Anhui, China
| | - Jiasheng Lei
- Department of General Surgery, The First Affiliated Hospital of Bengbu Medical College, NO. 287, Changhuai Road, Longzihu district, Bengbu, 233000, Anhui, China
| | - Fangfang Chen
- Department of General Surgery, The First Affiliated Hospital of Bengbu Medical College, NO. 287, Changhuai Road, Longzihu district, Bengbu, 233000, Anhui, China
| | - Wanliang Sun
- Department of General Surgery, The First Affiliated Hospital of Bengbu Medical College, NO. 287, Changhuai Road, Longzihu district, Bengbu, 233000, Anhui, China
| | - Dongdong Wang
- Department of General Surgery, The First Affiliated Hospital of Bengbu Medical College, NO. 287, Changhuai Road, Longzihu district, Bengbu, 233000, Anhui, China
| | - Shuo Zhou
- Department of General Surgery, The First Affiliated Hospital of Bengbu Medical College, NO. 287, Changhuai Road, Longzihu district, Bengbu, 233000, Anhui, China
| | - Zhong Liu
- Department of General Surgery, The First Affiliated Hospital of Bengbu Medical College, NO. 287, Changhuai Road, Longzihu district, Bengbu, 233000, Anhui, China
| | - Zheng Lu
- Department of General Surgery, The First Affiliated Hospital of Bengbu Medical College, NO. 287, Changhuai Road, Longzihu district, Bengbu, 233000, Anhui, China.
| | - Dengyong Zhang
- Department of General Surgery, The First Affiliated Hospital of Bengbu Medical College, NO. 287, Changhuai Road, Longzihu district, Bengbu, 233000, Anhui, China.
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, 77030, USA.
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7
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Ahmed SBM, Radwan N, Amer S, Saheb Sharif-Askari N, Mahdami A, Samara KA, Halwani R, Jelinek HF. Assessing the Link between Diabetic Metabolic Dysregulation and Breast Cancer Progression. Int J Mol Sci 2023; 24:11816. [PMID: 37511575 PMCID: PMC10380477 DOI: 10.3390/ijms241411816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 07/19/2023] [Accepted: 07/20/2023] [Indexed: 07/30/2023] Open
Abstract
Diabetes mellitus is a burdensome disease that affects various cellular functions through altered glucose metabolism. Several reports have linked diabetes to cancer development; however, the exact molecular mechanism of how diabetes-related traits contribute to cancer progression is not fully understood. The current study aimed to explore the molecular mechanism underlying the potential effect of hyperglycemia combined with hyperinsulinemia on the progression of breast cancer cells. To this end, gene dysregulation induced by the exposure of MCF7 breast cancer cells to hyperglycemia (HG), or a combination of hyperglycemia and hyperinsulinemia (HGI), was analyzed using a microarray gene expression assay. Hyperglycemia combined with hyperinsulinemia induced differential expression of 45 genes (greater than or equal to two-fold), which were not shared by other treatments. On the other hand, in silico analysis performed using a publicly available dataset (GEO: GSE150586) revealed differential upregulation of 15 genes in the breast tumor tissues of diabetic patients with breast cancer when compared with breast cancer patients with no diabetes. SLC26A11, ALDH1A3, MED20, PABPC4 and SCP2 were among the top upregulated genes in both microarray data and the in silico analysis. In conclusion, hyperglycemia combined with hyperinsulinemia caused a likely unique signature that contributes to acquiring more carcinogenic traits. Indeed, these findings might potentially add emphasis on how monitoring diabetes-related metabolic alteration as an adjunct to diabetes therapy is important in improving breast cancer outcomes. However, further detailed studies are required to decipher the role of the highlighted genes, in this study, in the pathogenesis of breast cancer in patients with a different glycemic index.
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Affiliation(s)
- Samrein B M Ahmed
- Research Institute of Medical and Health Sciences, University of Sharjah, Sharjah 27272, United Arab Emirates
- College of Medicine, University of Sharjah, Sharjah 27272, United Arab Emirates
- College of Health, Wellbeing and Life Sciences, Department of Biosciences and Chemistry, Sheffield Hallam University, Sheffield S1 1WB, UK
| | - Nada Radwan
- Research Institute of Medical and Health Sciences, University of Sharjah, Sharjah 27272, United Arab Emirates
| | - Sara Amer
- Research Institute of Medical and Health Sciences, University of Sharjah, Sharjah 27272, United Arab Emirates
| | - Narjes Saheb Sharif-Askari
- Research Institute of Medical and Health Sciences, University of Sharjah, Sharjah 27272, United Arab Emirates
- College of Medicine, University of Sharjah, Sharjah 27272, United Arab Emirates
| | - Amena Mahdami
- Research Institute of Medical and Health Sciences, University of Sharjah, Sharjah 27272, United Arab Emirates
| | - Kamel A Samara
- College of Medicine, University of Sharjah, Sharjah 27272, United Arab Emirates
| | - Rabih Halwani
- Research Institute of Medical and Health Sciences, University of Sharjah, Sharjah 27272, United Arab Emirates
- College of Medicine, University of Sharjah, Sharjah 27272, United Arab Emirates
| | - Herbert F Jelinek
- Department of Biomedical Engineering and Health Engineering Innovation Center, Khalifa University, Abu Dhabi 127788, United Arab Emirates
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8
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Li Y, Zhao H, Pang M, Huang Y, Zhang B, Yang D, Zhou Y. Expression Profile of Hydroxysteroid Dehydrogenase-like 2 in Polychaete Perinereis aibuhitensis in Response to BPA. LIFE (BASEL, SWITZERLAND) 2022; 13:life13010010. [PMID: 36675957 PMCID: PMC9863881 DOI: 10.3390/life13010010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 12/07/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022]
Abstract
Hydroxysteroid dehydrogenases (HSDs) play an important role in the metabolism of steroids and xenobiotics. However, the function of HSDs in invertebrates is unclear. In this study, we cloned the hydroxysteroid dehydrogenase-like 2 (HSDL2) gene in Perinereis aibuhitensis, which is 1652 bp in length, encoding 400 amino acids. This sequence contains conserved short-chain dehydrogenase and sterol carrier protein-2 domain, and the alignment analysis showed its close relationship with other invertebrate HSDL2. Further, the tissue distribution analysis of the HSDL2 gene showed it is expressed strongly in the intestine. The expression level of HSDL2 after inducement with bisphenol A (BPA) was also detected both at transcriptional and translational levels. The results inferred that BPA exposure can induce HSDL2 expression, and the inductive effect was obvious in the high-concentration BPA group (100 μg/L). In summary, our results showed the detoxification function of HSDL2 in polychaetes.
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Affiliation(s)
- Yingpeng Li
- Key Laboratory of Marine Bio-Resources Restoration and Habitat Reparation in Liaoning Province, Dalian Ocean University, Dalian 116023, China
| | - Huan Zhao
- Key Laboratory of Marine Bio-Resources Restoration and Habitat Reparation in Liaoning Province, Dalian Ocean University, Dalian 116023, China
- Correspondence: ; Tel./Fax: +86-411-84762290
| | - Min Pang
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources of the People’s Republic of China, Qingdao 266061, China
| | - Yi Huang
- Key Laboratory of Marine Bio-Resources Restoration and Habitat Reparation in Liaoning Province, Dalian Ocean University, Dalian 116023, China
| | - Boxu Zhang
- Key Laboratory of Marine Bio-Resources Restoration and Habitat Reparation in Liaoning Province, Dalian Ocean University, Dalian 116023, China
| | - Dazuo Yang
- Key Laboratory of Marine Bio-Resources Restoration and Habitat Reparation in Liaoning Province, Dalian Ocean University, Dalian 116023, China
| | - Yibing Zhou
- Key Laboratory of Marine Bio-Resources Restoration and Habitat Reparation in Liaoning Province, Dalian Ocean University, Dalian 116023, China
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9
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Li M, Xiao Y, Liu M, Ning Q, Xiang Z, Zheng X, Tang S, Mo Z. MiR-26a-5p regulates proliferation, apoptosis, migration and invasion via inhibiting hydroxysteroid dehydrogenase like-2 in cervical cancer cell. BMC Cancer 2022; 22:876. [PMID: 35948893 PMCID: PMC9367141 DOI: 10.1186/s12885-022-09970-x] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Accepted: 08/02/2022] [Indexed: 12/18/2022] Open
Abstract
Background Evidences have indicated that miR-26a-5p regulates the malignant properties of various tumor cells. However, the influences of miR-26a-5p on proliferation, apoptosis and invasion are still vague in the cervical cancer (CC) cells. Methods The miRNA microarray and real-time quantitative PCR (RT-qPCR) analysis were utilized to detect the expression of miR-26a-5p in the patients with CC. Kaplan–Meier plotter was performed to evaluate the overall survival (OS) of the patients with CC. The CCK-8, flow cytometry, transwell and wound healing analyses were respectively used to analyze proliferation, migration and invasion in the CC cells. RT-qPCR, western blot and IHC analysis were executed to measure the expression of hydroxysteroid dehydrogenase like-2 (HSDL2) in the patients with CC. Bioinformatics and luciferase reporter assay were carried out to verify the relationship of miR-26a-5p and HSDL2. Results The expression of miR-26a-5p was downregulated and low expression of miR-26a-5p indicated a poor OS in patients with CC. Overexpression of miR-26a-5p significantly inhibited proliferation, migration and invasion, accelerated apoptosis in the Hela and C33A cells. The expression of HSDL2 was upregulated, and negatively correlated with miR-26a-5p in the patients with CC. HSDL2 was directly targeted by miR-26a-5p and rescue experiments displayed that HSDL2 partially abolished proliferation, apoptosis, migration, and invasion induced by miR-26a-5p in CC cells. Conclusions MiR-26a-5p alleviated progression of CC by suppressing proliferation, migration and invasion, promoting apoptosis through downregulating HSDL2. Supplementary Information The online version contains supplementary material available at 10.1186/s12885-022-09970-x.
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Affiliation(s)
- Ming Li
- Hunan Province Key Laboratory for Antibody-Based Drug and Intelligent Delivery System, Hunan University of Medicine, Huaihua, 418000, Hunan, China.,Guangxi Key Laboratory of Molecular Medicine in Liver Injury and Repair, Guilin Medical University, Guilin, 541001, Guangxi, China
| | - Yubo Xiao
- Hunan Province Key Laboratory for Antibody-Based Drug and Intelligent Delivery System, Hunan University of Medicine, Huaihua, 418000, Hunan, China
| | - Minqi Liu
- Guangxi Key Laboratory of Molecular Medicine in Liver Injury and Repair, Guilin Medical University, Guilin, 541001, Guangxi, China.,Guangxi Province Postgraduate Co-Training Base for Cooperative Innovation in Basic Medicine (Guilin Medical University and Yueyang Women & Children's Medical Center), Yueyang, 414000, China
| | - Qian Ning
- Hunan Province Key Laboratory for Antibody-Based Drug and Intelligent Delivery System, Hunan University of Medicine, Huaihua, 418000, Hunan, China
| | - Ziye Xiang
- School of Medical Laboratory Science, Changsha Medical University, Changsha, 410000, Hunan, China
| | - Xiang Zheng
- Guangxi Key Laboratory of Molecular Medicine in Liver Injury and Repair, Guilin Medical University, Guilin, 541001, Guangxi, China
| | - Shengsong Tang
- Hunan Province Key Laboratory for Antibody-Based Drug and Intelligent Delivery System, Hunan University of Medicine, Huaihua, 418000, Hunan, China. .,College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, 410128, Hunan, China.
| | - Zhongcheng Mo
- Guangxi Key Laboratory of Molecular Medicine in Liver Injury and Repair, Guilin Medical University, Guilin, 541001, Guangxi, China. .,Guangxi Province Postgraduate Co-Training Base for Cooperative Innovation in Basic Medicine (Guilin Medical University and Yueyang Women & Children's Medical Center), Yueyang, 414000, China.
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10
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Kline GM, Nugroho K, Kelly JW. Inverse Drug Discovery identifies weak electrophiles affording protein conjugates. Curr Opin Chem Biol 2022; 67:102113. [PMID: 35065430 PMCID: PMC8940698 DOI: 10.1016/j.cbpa.2021.102113] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 12/13/2021] [Accepted: 12/20/2021] [Indexed: 01/01/2023]
Abstract
Traditional biochemical target-based and phenotypic cell-based screening approaches to drug discovery have produced the current covalent and non-covalent pharmacopoeia. Strategies to expand the druggable proteome include Inverse Drug Discovery, which involves incubating one weak organic electrophile at a time with the proteins of a living cell to identify the conjugates formed. An alkyne substructure in each organic electrophile enables affinity chromatography-mass spectrometry, which produces a list of proteins that each distinct compound reacts with. Herein, we review Inverse Drug Discovery in the context of organic compounds of intermediate complexity harboring Sulfur(VI)-fluoride exchange (SuFEx) electrophiles used to expand the cellular proteins that can be targeted covalently.
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Affiliation(s)
- Gabriel M Kline
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA, USA
| | - Karina Nugroho
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA, USA
| | - Jeffery W Kelly
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA, USA; The Skaggs Institute for Chemical Biology, The Scripps Research Institute, La Jolla, CA, USA.
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11
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Liu WB, Wang HL, Chen L, Tang B, Ke G, Wang S, Sun YQ, Ma J, Lyu DL. Cucurbitacin E inhibits cellular proliferation and induces apoptosis in melanoma by suppressing HSDL2 expression. Chin Med 2022; 17:28. [PMID: 35193614 PMCID: PMC8862504 DOI: 10.1186/s13020-022-00582-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Accepted: 02/03/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Melanoma is among the most aggressive types of skin malignancy and can have an unpredictable clinical course. Exploration of novel therapeutic targets and their regulators remains essential for the prevention and treatment of melanoma. METHODS HSDL2 protein levels were examined by immunohistochemistry. The roles of HSDL2 in cell proliferation and apoptosis were identified by CCK-8 and colony formation assays. The function of HSDL2 in cell apoptosis was analysed by flow cytometry. Western blotting, cell proliferation and apoptosis and a xenograft tumour model were utilized to explore the inhibitory functions and mechanisms of CuE in melanoma. RESULTS HSDL2 is overexpressed in melanoma and promotes melanoma progression by activating the ERK and AKT pathways. CuE could inhibit the ERK and AKT pathways by decreasing HSDL2 expression; therefore, CuE could inhibit melanoma growth in vitro and in vivo. CONCLUSION HSDL2 may be a promising therapeutic target against melanoma, and CuE can inhibit melanoma by downregulating HSDL2 expression.
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Affiliation(s)
- Wen-Bei Liu
- Department of Dermato-Venerology and Department of Burn and Plastic Surgery, The First Affiliated Hospital of Wannan Medical College, Jinghu District, Wuhu, 241000, Anhui, China
| | - He-Li Wang
- Department of Dermato-Venerology and Department of Burn and Plastic Surgery, The First Affiliated Hospital of Wannan Medical College, Jinghu District, Wuhu, 241000, Anhui, China
| | - Lei Chen
- Department of Dermato-Venerology and Department of Burn and Plastic Surgery, The First Affiliated Hospital of Wannan Medical College, Jinghu District, Wuhu, 241000, Anhui, China
| | - Biao Tang
- Department of Dermato-Venerology and Department of Burn and Plastic Surgery, The First Affiliated Hospital of Wannan Medical College, Jinghu District, Wuhu, 241000, Anhui, China
| | - Guolin Ke
- Department of Dermato-Venerology and Department of Burn and Plastic Surgery, The First Affiliated Hospital of Wannan Medical College, Jinghu District, Wuhu, 241000, Anhui, China
| | - Shuai Wang
- Department of Dermato-Venerology and Department of Burn and Plastic Surgery, The First Affiliated Hospital of Wannan Medical College, Jinghu District, Wuhu, 241000, Anhui, China
| | - Yin-Qiao Sun
- Department of Dermato-Venerology and Department of Burn and Plastic Surgery, The First Affiliated Hospital of Wannan Medical College, Jinghu District, Wuhu, 241000, Anhui, China
| | - Junting Ma
- Department of Pharmacology, School of Basic Medical Sciences, Anhui Medical University, Hefei, 230032, Anhui, China.
| | - Da-Lun Lyu
- Department of Dermato-Venerology and Department of Burn and Plastic Surgery, The First Affiliated Hospital of Wannan Medical College, Jinghu District, Wuhu, 241000, Anhui, China.
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12
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Knockdown of HSDL2 inhibits lung adenocarcinoma progression via down-regulating AKT2 expression. Biosci Rep 2021; 40:222464. [PMID: 32211805 PMCID: PMC7138907 DOI: 10.1042/bsr20200348] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 03/24/2020] [Accepted: 03/24/2020] [Indexed: 12/16/2022] Open
Abstract
The aims of the present study are to investigate the role of hydroxysteroid dehydrogenase-like 2 (HSDL2) in the progression of lung adenocarcinoma and illuminate the underlying molecular mechanisms. ShRNA targeting HSDL2 gene (siHSDL2) was utilized to knockdown (KD) HSDL2 expression. In vitro and in vivo experiments were carried out to investigate the effect of siHSDL2 on the progression of lung adenocarcinoma. Microarray hybridization and gene expression analysis were used to investigate effect of siHSDL2 on mRNA expression profile in lung cancer cell line H1299. Our data demonstrated that HSDL2 was up-regulated in lung adenocarcinoma tissue samples (P<0.001). Patients with high HSDL2 expression in cancer tissues had a worse overall survival (P<0.001). HSDL2 KD not only inhibited the proliferation, cell cycle, apoptosis, clone-formation, invasion and migration of lung adenocarcinoma cells in vitro (P<0.05), but also suppressed the growth and metastasis in vivo (P<0.05). HSDL2 KD resulted in up-regulation of 681 genes and down-regulation of 276 genes. HSDL2 KD down-regulated the protein expression and phosphorylation of protein kinase B β (AKT2) (P<0.001 and P<0.001, respectively) and protein expression of baculoviral IAP repeat-containing 3 (BIRC3; P=0.001), and up-regulated the phosphorylation of ERK (P<0.001). Rescue experiments showed that AKT2 overexpression reversed the suppression effect of siHSDL2 on cell proliferation (P<0.001), invasion (P<0.001) and migration (P<0.001) significantly. HSDL2 functions as an oncogene to promote the growth and metastasis of lung adenocarcinoma via promoting the expression of AKT2.
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13
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Yang Y, Han A, Wang X, Yin X, Cui M, Lin Z. Lipid metabolism regulator human hydroxysteroid dehydrogenase-like 2 (HSDL2) modulates cervical cancer cell proliferation and metastasis. J Cell Mol Med 2021; 25:4846-4859. [PMID: 33738911 PMCID: PMC8107089 DOI: 10.1111/jcmm.16461] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 02/02/2021] [Accepted: 02/05/2021] [Indexed: 12/28/2022] Open
Abstract
Human hydroxysteroid dehydrogenase‐like 2 (HSDL2) is a potent regulator in cancers and is also involved in lipid metabolism, but the role of HSDL2 in cervical cancer and whether it regulates the progress of cervical cancer through lipid metabolism remains unclear. In this study, we found that the overexpression of HSDL2 was in relation with cervical cancer progression including lymph nodes metastasis and recurrence. HSDL2 could serve as a novel marker of early diagnosis in cervical cancer. HSDL2 also gave impetus to tumorigenesis by initiating and promoting proliferation, invasion and migration of cervical cancer cells (Hela, C33A and SiHa) through EMT. Interestingly, we also searched that HSDL2 participated in oncogenesis by regulating lipid metabolism. In sum, our results gave the novel insight of HSDL2 functions which could be the potential for being the biomarker of prognosis and new target of therapy.
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Affiliation(s)
- Yang Yang
- Department of Pathology and Cancer Research Center, Yanbian University Medical College, Yanji, China.,Key Laboratory of the Science and Technology Department of Jilin Province, Yanji, China
| | - Anna Han
- Department of Pathology and Cancer Research Center, Yanbian University Medical College, Yanji, China.,Key Laboratory of the Science and Technology Department of Jilin Province, Yanji, China
| | - Xinyue Wang
- Department of Pathology and Cancer Research Center, Yanbian University Medical College, Yanji, China.,Key Laboratory of the Science and Technology Department of Jilin Province, Yanji, China
| | - Xianglin Yin
- Department of Pathology and Cancer Research Center, Yanbian University Medical College, Yanji, China.,Key Laboratory of the Science and Technology Department of Jilin Province, Yanji, China
| | - Minghua Cui
- Department of Pathology and Cancer Research Center, Yanbian University Medical College, Yanji, China.,Key Laboratory of the Science and Technology Department of Jilin Province, Yanji, China
| | - Zhenhua Lin
- Department of Pathology and Cancer Research Center, Yanbian University Medical College, Yanji, China.,Key Laboratory of the Science and Technology Department of Jilin Province, Yanji, China
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14
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Díaz P, Sandoval-Bórquez A, Bravo-Sagua R, Quest AFG, Lavandero S. Perspectives on Organelle Interaction, Protein Dysregulation, and Cancer Disease. Front Cell Dev Biol 2021; 9:613336. [PMID: 33718356 PMCID: PMC7946981 DOI: 10.3389/fcell.2021.613336] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Accepted: 02/01/2021] [Indexed: 11/13/2022] Open
Abstract
In recent decades, compelling evidence has emerged showing that organelles are not static structures but rather form a highly dynamic cellular network and exchange information through membrane contact sites. Although high-throughput techniques facilitate identification of novel contact sites (e.g., organelle-organelle and organelle-vesicle interactions), little is known about their impact on cellular physiology. Moreover, even less is known about how the dysregulation of these structures impacts on cellular function and therefore, disease. Particularly, cancer cells display altered signaling pathways involving several cell organelles; however, the relevance of interorganelle communication in oncogenesis and/or cancer progression remains largely unknown. This review will focus on organelle contacts relevant to cancer pathogenesis. We will highlight specific proteins and protein families residing in these organelle-interfaces that are known to be involved in cancer-related processes. First, we will review the relevance of endoplasmic reticulum (ER)-mitochondria interactions. This section will focus on mitochondria-associated membranes (MAMs) and particularly the tethering proteins at the ER-mitochondria interphase, as well as their role in cancer disease progression. Subsequently, the role of Ca2+ at the ER-mitochondria interphase in cancer disease progression will be discussed. Members of the Bcl-2 protein family, key regulators of cell death, also modulate Ca2+ transport pathways at the ER-mitochondria interphase. Furthermore, we will review the role of ER-mitochondria communication in the regulation of proteostasis, focusing on the ER stress sensor PERK (PRKR-like ER kinase), which exerts dual roles in cancer. Second, we will review the relevance of ER and mitochondria interactions with other organelles. This section will focus on peroxisome and lysosome organelle interactions and their impact on cancer disease progression. In this context, the peroxisome biogenesis factor (PEX) gene family has been linked to cancer. Moreover, the autophagy-lysosome system is emerging as a driving force in the progression of numerous human cancers. Thus, we will summarize our current understanding of the role of each of these organelles and their communication, highlighting how alterations in organelle interfaces participate in cancer development and progression. A better understanding of specific organelle communication sites and their relevant proteins may help to identify potential pharmacological targets for novel therapies in cancer control.
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Affiliation(s)
- Paula Díaz
- Advanced Center for Chronic Diseases (ACCDiS), Faculty of Chemical and Pharmaceutical Sciences and Faculty of Medicine, Universidad de Chile, Santiago, Chile.,Center for Studies on Exercise, Metabolism and Cancer (CEMC), Program of Cell and Molecular Biology, Faculty of Medicine, Institute of Biomedical Sciences (ICBM), Universidad de Chile, Santiago, Chile
| | - Alejandra Sandoval-Bórquez
- Advanced Center for Chronic Diseases (ACCDiS), Faculty of Chemical and Pharmaceutical Sciences and Faculty of Medicine, Universidad de Chile, Santiago, Chile.,Center for Studies on Exercise, Metabolism and Cancer (CEMC), Program of Cell and Molecular Biology, Faculty of Medicine, Institute of Biomedical Sciences (ICBM), Universidad de Chile, Santiago, Chile
| | - Roberto Bravo-Sagua
- Advanced Center for Chronic Diseases (ACCDiS), Faculty of Chemical and Pharmaceutical Sciences and Faculty of Medicine, Universidad de Chile, Santiago, Chile.,Institute of Nutrition and Food Technology (INTA), Universidad de Chile, Santiago, Chile
| | - Andrew F G Quest
- Advanced Center for Chronic Diseases (ACCDiS), Faculty of Chemical and Pharmaceutical Sciences and Faculty of Medicine, Universidad de Chile, Santiago, Chile.,Center for Studies on Exercise, Metabolism and Cancer (CEMC), Program of Cell and Molecular Biology, Faculty of Medicine, Institute of Biomedical Sciences (ICBM), Universidad de Chile, Santiago, Chile.,Corporación Centro de Estudios Científicos de las Enfermedades Crónicas (CECEC), Santiago, Chile
| | - Sergio Lavandero
- Advanced Center for Chronic Diseases (ACCDiS), Faculty of Chemical and Pharmaceutical Sciences and Faculty of Medicine, Universidad de Chile, Santiago, Chile.,Center for Studies on Exercise, Metabolism and Cancer (CEMC), Program of Cell and Molecular Biology, Faculty of Medicine, Institute of Biomedical Sciences (ICBM), Universidad de Chile, Santiago, Chile.,Corporación Centro de Estudios Científicos de las Enfermedades Crónicas (CECEC), Santiago, Chile.,Division of Cardiology, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, United States
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15
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Han A, Xu R, Liu Y, Yin X, Lin Z, Yang W. HSDL2 Acts as a Promoter in Pancreatic Cancer by Regulating Cell Proliferation and Lipid Metabolism. Onco Targets Ther 2021; 14:435-444. [PMID: 33488098 PMCID: PMC7814248 DOI: 10.2147/ott.s287722] [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: 10/21/2020] [Accepted: 12/11/2020] [Indexed: 11/23/2022] Open
Abstract
Background Pancreatic cancer (PC) is a leading cause of cancer mortality worldwide. Hydroxysteroid dehydrogenase like protein 2 (HSDL2) is overexpressed in a variety of malignant tumors and is might be closely related to the development of cancer. It also regulates different metabolism and signaling pathways. Purpose The purpose of this research was to find HSDL2 expression levels and investigate its underlying molecular mechanism in PC. Patients and Methods In the present study, a total of 66 PC samples and 54 normal tissues were used to examine the expression of HSDL2. In order to gain a broader insight into the molecular mechanism of HSDL2 in PC, the HSDL2 siRNA sequences were transfected into PC cell lines (Bxpc-3 and Panc-1), respectively. Cell proliferation was measured by MTT, colony formation assay and EdU assays. Furthermore, the lipid metabolism process was evaluated by triglyceride and phospholipid assay kits, BODIPY 493/503 staining and the expression of several pivotal lipid metabolic enzymes in PC. Results In this study, HSDL2 was highly expressed in PC and connected with shorter overall survival. When HSDL2 was silenced, the cell proliferation was significantly reduced, and the lipid metabolism was further inhibited. Conclusion High expression of HSDL2 plays an important role in the progression of PC and might be a potential new biomarker of poor prognosis as well as a therapeutic target in the future.
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Affiliation(s)
- Anna Han
- Department of Pathology and Cancer Research Center, Yanbian University Medical College, Yanji, People's Republic of China.,Key Laboratory of the Science and Technology Department of Jilin Province, Yanji, People's Republic of China
| | - Ran Xu
- Department of Pathology and Cancer Research Center, Yanbian University Medical College, Yanji, People's Republic of China.,Key Laboratory of the Science and Technology Department of Jilin Province, Yanji, People's Republic of China
| | - Ying Liu
- Department of Pathology and Cancer Research Center, Yanbian University Medical College, Yanji, People's Republic of China.,Key Laboratory of the Science and Technology Department of Jilin Province, Yanji, People's Republic of China
| | - Xianglin Yin
- Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, People's Republic of China
| | - Zhenhua Lin
- Department of Pathology and Cancer Research Center, Yanbian University Medical College, Yanji, People's Republic of China.,Key Laboratory of the Science and Technology Department of Jilin Province, Yanji, People's Republic of China
| | - Wanshan Yang
- Department of Pathology and Cancer Research Center, Yanbian University Medical College, Yanji, People's Republic of China.,Key Laboratory of the Science and Technology Department of Jilin Province, Yanji, People's Republic of China
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16
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Wang Y, Xie G, Li M, Du J, Wang M. COPB2 gene silencing inhibits colorectal cancer cell proliferation and induces apoptosis via the JNK/c-Jun signaling pathway. PLoS One 2020; 15:e0240106. [PMID: 33211699 PMCID: PMC7676692 DOI: 10.1371/journal.pone.0240106] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 09/18/2020] [Indexed: 12/13/2022] Open
Abstract
Objectives Colorectal cancer (CRC) is one of the most common malignant human tumors. It is associated with high morbidity and mortality rates. In recent years, tumor gene therapy has emerged as a promising new approach for colorectal cancer therapy. Herein, we identify and analyze the role of COPB2 (coatomer protein complex, subunit beta 2) in proliferation and apoptosis of CRC cells. Methods To investigate the role of COPB2 in the proliferation and apoptosis of CRC cells, a shCOPB2 vector and a shCtrl vector were constructed for transfection into RKO and HCT116 cells. Cells proliferation was subsequently measured via cell counting kit-8 (CCK8) assay and Celigo cell counting assay. Apoptosis was measured via flow cytometry. The activity level of Caspase 3/7 was measured. Finally, the level of several JNK/c-Jun apoptosis pathway-related proteins were measured to characterize the mechanism of apoptosis. Results Our results showed that the proliferation rate was decreased and the apoptosis rate was increased in shCOPB2-treated RKO and HCT116 cells compared to those in controls. After the silencing of COPB2, JNK/c-Jun signal pathway activation was increased, the expression levels of apoptosis pathway-related proteins, such as Bad, p53 and Caspase 3, were also increased. Conclusion COPB2 gene silencing can inhibit RKO and HCT116 cells proliferation and induce apoptosis via the JNK/c-Jun signaling pathway.
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Affiliation(s)
- Yan Wang
- Gansu Provincial Hospital, Lanzhou, Gansu, China
- Institute of Pathology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, Gansu, China
- * E-mail:
| | - Guangmei Xie
- Gansu Provincial Maternity and Child-care Hospital, Lanzhou, Gansu, China
| | - Min Li
- Institute of Pathology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, Gansu, China
| | - Juan Du
- Gansu Provincial Hospital, Lanzhou, Gansu, China
| | - Min Wang
- Institute of Pathology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, Gansu, China
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17
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Zhang D, Zhao P, Liu J, Qi T, Liu Q, Jiang S, Zhang H, Wang Z, Tang B, Ding G. Transcriptome Analysis Reveals the Tolerance Mechanism of Mantis Shrimp ( Oratosquilla oratoria) under a Lipopolysaccharide Challenge. ACS OMEGA 2020; 5:2310-2317. [PMID: 32064393 PMCID: PMC7017407 DOI: 10.1021/acsomega.9b03629] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Accepted: 01/16/2020] [Indexed: 05/12/2023]
Abstract
Lipopolysaccharide (LPS), a major cell wall component of Gram-negative bacteria, is considered to lead to some disease development in commercial crustaceans. However, mantis shrimps Oratosquilla oratoria (Crustacea: Stomatopoda) have a strong vitality and ability to resist disease. To study the tolerance mechanism of mantis shrimp, transcriptome analyses were conducted in hepatopancreas of O. oratoria under LPS challenge investigation. Totally, 84 547 044 clean reads were obtained from transcriptomes (43 159 230 in OP (control), 41 387 814 in OL (treatment), respectively). Unigenes, the longest transcript of each gene, with a total length of 68 318 880 bp and the total number of 100 978 were obtained. 8369 (8.28%) of unigenes were successfully annotated in all databases and 54 888 (54.35%) were annotated in at least one database. Finally, 1012 differentially expressed genes (DEGs) including 439 and 573 showed significantly upregulated and downregulated were determined between OL and OP, respectively. Moreover, those DEGs only expressed in OL or OP accounted for 8.99%. The functional classification based on GO and KEGG indicated that the common enrichment categories for the DEGs are "amino sugar metabolic" and "cellular homeostasis" and that the progress of nutrient metabolic and homeostasis in cells is important in facing variable environmental conditions. Protein-protein interaction analysis elucidated proteins, β-actin (ACTB_G1), T-complex protein subunits (TCPs), heat shock proteins (HSPs), hydroxysteroid dehydrogenase-like protein 2 (HSDL2), kinesin family member 5 (KIF5), methylglutaconyl-CoA hydratase (AUH), and myosin heavy chain (MYH) may play key roles in response to an LPS challenge. This study laid a foundation to further investigate the possible adaptation way that O. oratoria survives in a bacterial challenge.
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Affiliation(s)
- Daizhen Zhang
- Jiangsu
Key Laboratory for Bioresources of Saline Soils, Jiangsu Provincial
Key Laboratory of Coastal Wetland Bioresources and Environmental Protection,
Jiangsu Synthetic Innovation Center for Coastal Bio-agriculture, Yancheng Teachers University, Yancheng 224051, China
| | - Peisong Zhao
- Jiangsu
Key Laboratory for Bioresources of Saline Soils, Jiangsu Provincial
Key Laboratory of Coastal Wetland Bioresources and Environmental Protection,
Jiangsu Synthetic Innovation Center for Coastal Bio-agriculture, Yancheng Teachers University, Yancheng 224051, China
- College
of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Jun Liu
- Key
Laboratory of Biotechnology in Lianyungang Normal College, Lianyungang 222006, China
| | - Tingting Qi
- Jiangsu
Key Laboratory for Bioresources of Saline Soils, Jiangsu Provincial
Key Laboratory of Coastal Wetland Bioresources and Environmental Protection,
Jiangsu Synthetic Innovation Center for Coastal Bio-agriculture, Yancheng Teachers University, Yancheng 224051, China
| | - Qiuning Liu
- Jiangsu
Key Laboratory for Bioresources of Saline Soils, Jiangsu Provincial
Key Laboratory of Coastal Wetland Bioresources and Environmental Protection,
Jiangsu Synthetic Innovation Center for Coastal Bio-agriculture, Yancheng Teachers University, Yancheng 224051, China
| | - Senhao Jiang
- Jiangsu
Key Laboratory for Bioresources of Saline Soils, Jiangsu Provincial
Key Laboratory of Coastal Wetland Bioresources and Environmental Protection,
Jiangsu Synthetic Innovation Center for Coastal Bio-agriculture, Yancheng Teachers University, Yancheng 224051, China
| | - Huabin Zhang
- Jiangsu
Key Laboratory for Bioresources of Saline Soils, Jiangsu Provincial
Key Laboratory of Coastal Wetland Bioresources and Environmental Protection,
Jiangsu Synthetic Innovation Center for Coastal Bio-agriculture, Yancheng Teachers University, Yancheng 224051, China
| | - Zhengfei Wang
- Jiangsu
Key Laboratory for Bioresources of Saline Soils, Jiangsu Provincial
Key Laboratory of Coastal Wetland Bioresources and Environmental Protection,
Jiangsu Synthetic Innovation Center for Coastal Bio-agriculture, Yancheng Teachers University, Yancheng 224051, China
| | - Boping Tang
- Jiangsu
Key Laboratory for Bioresources of Saline Soils, Jiangsu Provincial
Key Laboratory of Coastal Wetland Bioresources and Environmental Protection,
Jiangsu Synthetic Innovation Center for Coastal Bio-agriculture, Yancheng Teachers University, Yancheng 224051, China
| | - Ge Ding
- Chemical
and Biological Engineering College, Yancheng
Institute of Technology, Yancheng 224003, China
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18
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SCP2-mediated cholesterol membrane trafficking promotes the growth of pituitary adenomas via Hedgehog signaling activation. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2019; 38:404. [PMID: 31519191 PMCID: PMC6743201 DOI: 10.1186/s13046-019-1411-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 09/04/2019] [Indexed: 12/14/2022]
Abstract
Background Metabolic reprogramming is an important characteristic of tumors. In the progression of pituitary adenomas (PA), abnormal glucose metabolism has been confirmed by us before. However, whether cholesterol metabolism is involved in the process of PA remains unclear. This study aimed to investigate whether abnormal cholesterol metabolism could affect the progression of PA. Methods We analyzed the expression of sterol carrier protein 2 (SCP2) in 40 surgical PA samples. In vitro experiments and xenograft models were used to assess the effects of SCP2 and cholesterol on proliferation of PA. The incidence of hypercholesterolemia between 140 PA patients and 100 heathy controls were compared. Results We found an upregulation of SCP2 in PA samples, especially in tumors with high proliferation index. Forced expression of SCP2 promoted PA cell lines proliferation in vitro. Furthermore, SCP2 regulated cholesterol trafficking from cytoplasm to membrane in GH3 cells, and extracellularly treating GH3 cells and primary PA cells with methyl-β-cyclodextrin/cholesterol complex to mimic membrane cholesterol concentration enhanced cell proliferation, which suggested a proliferative effect of cholesterol. Mechanistically, cholesterol induced activation of PKA/SUFU/GLI1 signaling via smoothened receptor, which was well-known as Hedgehog signaling, resulting in inhibiting apoptosis and promoting cell cycle. Accordingly, activation of Hedgehog signaling was also confirmed in primary PA cells and surgical PA samples. In vivo, SCP2 overexpression and high cholesterol diet could promote tumor growth. Intriguingly, the incidence of hypercholesterolemia was significantly higher in PA patients than healthy controls. Conclusions Our data indicated that dysregulated cholesterol metabolism could promote PA growth by activating Hedgehog signaling, supporting a potential tumorigenic role of cholesterol metabolism in PA progression.
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Dong B, Yang Y, Han A, Zhang S, Lin Z, Wang Y, Piao J. Ectopic expression of HSDL2 is related to cell proliferation and prognosis in breast cancer. Cancer Manag Res 2019; 11:6531-6542. [PMID: 31372054 PMCID: PMC6634268 DOI: 10.2147/cmar.s205316] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Accepted: 05/24/2019] [Indexed: 12/03/2022] Open
Abstract
Purpose Human hydroxysteroid dehydrogenase-like 2 (HSDL2) is a characterized SDR gene that not only catalyses the oxidation and reduction of multiple substrates but also regulates different metabolic and signalling pathways. Accumulating evidences suggest that HSDL2 play an important role in cancer progression. However, the role of HSDL2 in breast cancer has not yet been determined. Thus, this study aims to explore the relevance of HSDL2 in breast cancer progression. Patients and methods The location of HSDL2 protein was detected in MDA-MB-231 breast cancer cells by using immunofluorescence (IF) staining. The expression level of HSDL2 was evaluated by immunohistochemical (IHC) staining in 119 breast cancer tissues and 40 normal breast tissues. Then, the correlations between the overexpression of HSDL2 and clinicopathological features of breast cancer patients were evaluated by using the chi-square test, and the survival rates were calculated by the Kaplan-Meier method. In addition, the role of HSDL2 in breast cancer proliferation was assessed by MTT and colony formation assays, and cell cycle distribution was detected by flow cytometry analysis and Western blot. Results IF staining and IHC analysis consistently showed that HSDL2 was predominantly expressed in the cytoplasm of breast cancer cells. The positive rate of HSDL2 protein was significantly higher in breast cancer tissues (87.4%, 104/119) than in adjacent normal breast tissues (25%, 10/40) (p<0.01). A high expression of HSDL2 protein was significantly associated with high histological grades, late clinical stages and low survival rates. Moreover, multivariate analysis indicated that HSDL2 protein was an independent prognostic factor in breast cancer patients. Studies in vitro showed that HSDL2 depletion reduced cell proliferation and induced cell cycle arrest in breast cancer. Conclusion In conclusion, this study indicated that HSDL2 plays a role in promoting the development of breast cancer. HSDL2 could be a valuable prognostic biomarker and a potential therapeutic target for patients with breast cancer.
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Affiliation(s)
- Bing Dong
- Department of Pathology & Cancer Research Center, Yanbian University Medical College, Yanji 133002, People's Republic of China
| | - Yang Yang
- Department of Pathology & Cancer Research Center, Yanbian University Medical College, Yanji 133002, People's Republic of China.,Key Laboratory of the Science and Technology Department of Jilin Province , Yanji 133002, People's Republic of China
| | - Anna Han
- Department of Pathology & Cancer Research Center, Yanbian University Medical College, Yanji 133002, People's Republic of China
| | - Songnan Zhang
- Department of Oncology, Affiliated Hospital of Yanbian University, Yanji 13302, People's Republic of China
| | - Zhenhua Lin
- Department of Pathology & Cancer Research Center, Yanbian University Medical College, Yanji 133002, People's Republic of China.,Key Laboratory of the Science and Technology Department of Jilin Province , Yanji 133002, People's Republic of China
| | - Yixuan Wang
- Department of Pathology & Cancer Research Center, Yanbian University Medical College, Yanji 133002, People's Republic of China
| | - Junjie Piao
- Department of Pathology & Cancer Research Center, Yanbian University Medical College, Yanji 133002, People's Republic of China.,Key Laboratory of the Science and Technology Department of Jilin Province , Yanji 133002, People's Republic of China
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20
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Down-regulated HSDL2 expression suppresses cell proliferation and promotes apoptosis in papillary thyroid carcinoma. Biosci Rep 2019; 39:BSR20190425. [PMID: 31101684 PMCID: PMC6549096 DOI: 10.1042/bsr20190425] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Revised: 04/18/2019] [Accepted: 04/29/2019] [Indexed: 01/23/2023] Open
Abstract
Papillary thyroid carcinoma (PTC) is the most common type of thyroid cancer. Hydroxysteroid dehydrogenase like 2 (HSDL2) can regulate lipid metabolism and take part in cell proliferation. The purpose of the present study was to explore functional role of HSDL2 gene in PTC. The expression of HSDL2 protein in PTC tissues was estimated using immunohistochemistry analysis (IHC). HSDL2 mRNA level was detected through quantitative real-time polymerase chain reaction (qRT-PCR). Effects of HSDL2 gene on cell proliferation and apoptosis were assessed using the shRNA method for both in vitro and in vivo experiments. Potential target genes of HSDL2 were determined via bioinformatics analyses and Western blotting. HSDL2 was up-regulated in PTC tissues and cell lines compared with the controls (all P<0.05). Inhibiting HSDL expression could suppress PTC cell proliferation and cycle, and promote apoptosis in vitro. In vivo, the knockdown of HSDL2 gene could significantly suppress tumor growth (all P<0.05). Furthermore, AKT3, NFATc2 and PPP3CA genes might be potential targets of HSDL2 in PTC. HSDL2 expression was increased in PTC tissues and cells, which could promote tumor progression in vitro and in vivo.
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21
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Lentiviral Vectors as Tools for the Study and Treatment of Glioblastoma. Cancers (Basel) 2019; 11:cancers11030417. [PMID: 30909628 PMCID: PMC6468594 DOI: 10.3390/cancers11030417] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Revised: 03/06/2019] [Accepted: 03/19/2019] [Indexed: 12/17/2022] Open
Abstract
Glioblastoma (GBM) has the worst prognosis among brain tumors, hence basic biology, preclinical, and clinical studies are necessary to design effective strategies to defeat this disease. Gene transfer vectors derived from the most-studied lentivirus-the Human Immunodeficiency Virus type 1-have wide application in dissecting GBM specific features to identify potential therapeutic targets. Last-generation lentiviruses (LV), highly improved in safety profile and gene transfer capacity, are also largely employed as delivery systems of therapeutic molecules to be employed in gene therapy (GT) approaches. LV were initially used in GT protocols aimed at the expression of suicide factors to induce GBM cell death. Subsequently, LV were adopted to either express small noncoding RNAs to affect different aspects of GBM biology or to overcome the resistance to both chemo- and radiotherapy that easily develop in this tumor after initial therapy. Newer frontiers include adoption of LV for engineering T cells to express chimeric antigen receptors recognizing specific GBM antigens, or for transducing specific cell types that, due to their biological properties, can function as carriers of therapeutic molecules to the cancer mass. Finally, LV allow the setting up of improved animal models crucial for the validation of GBM specific therapies.
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22
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Jia LH, Hu MD, Liu Y, Xiong X, Wang WJ, Wang JG, Li QG. HSDL2 Promotes Bladder Cancer Growth In Vitro and In Vivo. Int J Med Sci 2019; 16:654-659. [PMID: 31217732 PMCID: PMC6566746 DOI: 10.7150/ijms.31288] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Accepted: 03/27/2019] [Indexed: 12/14/2022] Open
Abstract
Bladder cancer is a common malignant urinary tumor, and patients with bladder cancer have poor prognosis. Abnormal lipid metabolism in peroxisomes is involved in tumor progression. Hydroxysteroid dehydrogenase-like 2 (HSDL2) localized in peroxisomes regulates fatty acid synthesis. In the present study, we reported that HSDL2 was upregulated in two human bladder cancer cell lines 5637 and T24 compared to normal human urothelial cells. Furthermore, lentiviral-mediated HSDL2 knockdown inhibited the proliferation and colony formation while promoted the apoptosis of human bladder cancer T24 cells in vitro. In nude mice HSDL2 knockdown inhibited the growth of T24 derived xenografts in vivo. In conclusion, our results suggest that HSDL2 plays an oncogenic role in bladder cancer and might serve as a potential target for bladder cancer therapy.
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Affiliation(s)
- Ling-Hua Jia
- Graduate Faculty, Jiangxi Medical College, Nanchang University, Nanchang 330006.,Department of Urology, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Nanchang 330006
| | - Mei-Di Hu
- Departments of Gerontology, The First Affiliated Hospital of Nanchang University, Nanchang 330006
| | - Yuan Liu
- Division of Nephrology, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai 200240
| | - Xing Xiong
- Department of Urology, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Nanchang 330006
| | - Wei-Jia Wang
- Department of Pathology, The First Affiliated Hospital of Nanchang University, Nanchang 330006
| | - Jin-Gen Wang
- Department of Urology, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Nanchang 330006
| | - Qiu-Gen Li
- Department of Respiratory Medicine, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Nanchang 330006
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23
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Abstract
Peroxisomes are key metabolic organelles, which contribute to cellular lipid metabolism, e.g. the β-oxidation of fatty acids and the synthesis of myelin sheath lipids, as well as cellular redox balance. Peroxisomal dysfunction has been linked to severe metabolic disorders in man, but peroxisomes are now also recognized as protective organelles with a wider significance in human health and potential impact on a large number of globally important human diseases such as neurodegeneration, obesity, cancer, and age-related disorders. Therefore, the interest in peroxisomes and their physiological functions has significantly increased in recent years. In this review, we intend to highlight recent discoveries, advancements and trends in peroxisome research, and present an update as well as a continuation of two former review articles addressing the unsolved mysteries of this astonishing organelle. We summarize novel findings on the biological functions of peroxisomes, their biogenesis, formation, membrane dynamics and division, as well as on peroxisome-organelle contacts and cooperation. Furthermore, novel peroxisomal proteins and machineries at the peroxisomal membrane are discussed. Finally, we address recent findings on the role of peroxisomes in the brain, in neurological disorders, and in the development of cancer.
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Affiliation(s)
- Markus Islinger
- Institute of Neuroanatomy, Center for Biomedicine and Medical Technology Mannheim, Medical Faculty Manheim, University of Heidelberg, 68167, Mannheim, Germany
| | - Alfred Voelkl
- Institute for Anatomy and Cell Biology, University of Heidelberg, 69120, Heidelberg, Germany
| | - H Dariush Fahimi
- Institute for Anatomy and Cell Biology, University of Heidelberg, 69120, Heidelberg, Germany
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Martín‐Gago P, Olsen CA. Arylfluorosulfate-Based Electrophiles for Covalent Protein Labeling: A New Addition to the Arsenal. Angew Chem Int Ed Engl 2018; 58:957-966. [PMID: 30024079 PMCID: PMC6518939 DOI: 10.1002/anie.201806037] [Citation(s) in RCA: 86] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 07/18/2018] [Indexed: 01/15/2023]
Abstract
Selective covalent modification of a targeted protein is a powerful tool in chemical biology and drug discovery, with applications ranging from identification and characterization of proteins and their functions to the development of targeted covalent inhibitors. Most covalent ligands contain an affinity motif and an electrophilic warhead that reacts with a nucleophilic residue of the targeted protein. Because the electrophilic warhead is prone to react and modify off‐target nucleophiles, its reactivity should be balanced carefully to maximize target selectivity. Arylfluorosulfates have recently emerged as latent electrophiles for selective labeling of context‐specific tyrosine and lysine residues in protein pockets. Here, we review the recent but intense introduction of arylfluorosulfates into the arsenal of available warheads for selective covalent modification of proteins. We highlight the untapped potential of this functional group for use in chemical biology and drug discovery.
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Affiliation(s)
- Pablo Martín‐Gago
- Center for Biopharmaceuticals &, Department of Drug Design and PharmacologyUniversity of CopenhagenUniversitetsparken 22100CopenhagenDenmark
| | - Christian A. Olsen
- Center for Biopharmaceuticals &, Department of Drug Design and PharmacologyUniversity of CopenhagenUniversitetsparken 22100CopenhagenDenmark
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25
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Wu Q, Fu C, Li M, Li J, Li Z, Qi L, Ci X, Ma G, Gao A, Fu X, A J, An N, Liu M, Li Y, King JL, Fu L, Zhang B, Dong JT. CINP is a novel cofactor of KLF5 required for its role in the promotion of cell proliferation, survival and tumor growth. Int J Cancer 2018; 144:582-594. [PMID: 30289973 DOI: 10.1002/ijc.31908] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Accepted: 09/21/2018] [Indexed: 02/01/2023]
Abstract
Krüppel-like factor 5 (KLF5) both suppresses and promotes tumor growth depending on cellular context. The mechanisms underlying tumor promotion could be targetable for therapy. Although a number of transcriptional targets of KLF5 have been identified and implicated in KLF5-mediated tumor growth, how KLF5 regulates these genes remains to be addressed. Here we performed coimmunoprecipitation (co-IP) and liquid chromatography-tandem mass spectrometry (LC-MS/MS) in the TSU-Pr1 bladder cancer cell line, in which KLF5 is shown to promote tumor growth, to identify KLF5-interacting nuclear proteins that are necessary for KLF5's tumor promoting function. LC-MS/MS revealed 122 potential KLF5 binding proteins in the nuclear proteins precipitated by the KLF5 antibody, and the top nine candidates included AHNAK, TFAM, HSDL2, HNRNPC, CINP, IST1, FBL, PABPC1 and SNRNP40. SRB assays of these nine proteins indicated that silencing CINP had the most potent inhibitory effect on cell growth in KLF5-expressing cells but did not affect parental TSU-Pr1 cells. Further analyses not only confirmed the physical interaction between KLF5 and CINP, also demonstrated that knockdown of CINP attenuated the effects of KLF5 on cell cycle progression, apoptosis and tumorigenesis. Silencing CINP also attenuated the effect of KLF5 on the expression of a number of genes and signaling pathways, including cell cycle regulator Cyclin D1 and apoptosis-related Caspase 7. These results suggest that CINP is a cofactor of KLF5 that is crucial for the promotion of tumor growth, and that the KLF5-CINP interaction could be a novel therapeutic target for inhibiting KLF5-promoted tumor growth.
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Affiliation(s)
- Qiao Wu
- Department of Genetics and Cell Biology, College of Life Sciences, Nankai University, Tianjin, China
| | - Changying Fu
- Department of Genetics and Cell Biology, College of Life Sciences, Nankai University, Tianjin, China
| | - Menglin Li
- Department of Genetics and Cell Biology, College of Life Sciences, Nankai University, Tianjin, China
| | - Juan Li
- Department of Genetics and Cell Biology, College of Life Sciences, Nankai University, Tianjin, China
| | - Zhigui Li
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven, CT
| | - Leilei Qi
- Department of Genetics and Cell Biology, College of Life Sciences, Nankai University, Tianjin, China
| | - Xinpei Ci
- Department of Genetics and Cell Biology, College of Life Sciences, Nankai University, Tianjin, China
| | - Gui Ma
- Department of Genetics and Cell Biology, College of Life Sciences, Nankai University, Tianjin, China
| | - Ang Gao
- Department of Genetics and Cell Biology, College of Life Sciences, Nankai University, Tianjin, China
| | - Xing Fu
- Department of Genetics and Cell Biology, College of Life Sciences, Nankai University, Tianjin, China
| | - Jun A
- Department of Genetics and Cell Biology, College of Life Sciences, Nankai University, Tianjin, China
| | - Na An
- Department of Genetics and Cell Biology, College of Life Sciences, Nankai University, Tianjin, China
| | - Mingcheng Liu
- Department of Genetics and Cell Biology, College of Life Sciences, Nankai University, Tianjin, China
| | - Yixiang Li
- Department of Hematology and Medical Oncology, Emory Winship Cancer Institute, Emory University School of Medicine, Atlanta, GA
| | - Jamie L King
- Department of Hematology and Medical Oncology, Emory Winship Cancer Institute, Emory University School of Medicine, Atlanta, GA
| | - Liya Fu
- Department of Genetics and Cell Biology, College of Life Sciences, Nankai University, Tianjin, China
| | - Baotong Zhang
- Department of Hematology and Medical Oncology, Emory Winship Cancer Institute, Emory University School of Medicine, Atlanta, GA
| | - Jin-Tang Dong
- Department of Genetics and Cell Biology, College of Life Sciences, Nankai University, Tianjin, China.,Department of Hematology and Medical Oncology, Emory Winship Cancer Institute, Emory University School of Medicine, Atlanta, GA
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Martín‐Gago P, Olsen CA. Arylfluorsulfat‐basierte Elektrophile für die kovalente Proteinmarkierung. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201806037] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Pablo Martín‐Gago
- Center for Biopharmaceuticals &, Department of Drug Design and PharmacologyUniversität Kopenhagen Universitetsparken 2 2100 Kopenhagen Dänemark
| | - Christian A. Olsen
- Center for Biopharmaceuticals &, Department of Drug Design and PharmacologyUniversität Kopenhagen Universitetsparken 2 2100 Kopenhagen Dänemark
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Zhang DY, Liu Z, Lu Z, Sun WL, Ma X, Zhang P, Wu BQ, Cui PY. Lentivirus-mediated overexpression of HSDL2 suppresses cell proliferation and induces apoptosis in cholangiocarcinoma. Onco Targets Ther 2018; 11:7133-7142. [PMID: 30410369 PMCID: PMC6200078 DOI: 10.2147/ott.s176410] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Background Cholangiocarcinoma (CCA) is a malignant tumor of the bile duct epithelium, including intrahepatic, perihilar, and distal CCA based on anatomical location. Hydroxysteroid dehydrogenase-like 2 (HSDL2) belongs to the SDR subfamily of oxidoreductases, and it is involved in glioma oncogenesis, as it can promote cell proliferation and inhibit cell apoptosis. The purpose of this study was to explore the underlying molecular mechanisms of HSDL2 in the process of CCA. Methods HSDL2 expression levels were observed in CCA and adjacent (normal control) tissues by analyzing data from The Cancer Genome Atlas and Gene Expression Omnibus databases. A receiver operating characteristic curve analysis was carried out. In vitro, we overexpressed HSDL2 in RBE cells (a human CCA cell line) using a stable lentivirus-mediated transduction strategy. We then used quantitative real-time-PCR and Western blotting methods to detect the efficiency of HSDL2 overexpression. Cell proliferation was assessed using a Celigo Image Cytometer, MTT assays, and the expression of PCNA. Cell apoptosis was assessed by flow cytometry analysis, caspase3/7 activity, and the expression of the apoptotic markers BCL-2 and BAX. Results We observed a downregulation of HSDL2 in CCA tissues based on The Cancer Genome Atlas and Gene Expression Omnibus data analysis. The receiver operating characteristic curve analysis showed that HSDL2 could be an excellent efficacy biomarker for CCA. In vitro, HSDL2 overexpression largely suppressed the proliferation of RBE cells. In addition, apoptosis was induced by HSDL2 overexpression. Conclusion The results of the data analysis indicated that, compared with adjacent tissues, HSDL2 was downregulated in CCA tissues, and overexpressing HSDL2 in CCA cells suppressed growth and proliferation, which involved activating apoptosis. This helps to understand the underlying HSDL2-related molecular mechanisms in the process of CCA.
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Affiliation(s)
- Deng-Yong Zhang
- Department of General Surgery, The First Affiliated Hospital of Bengbu Medical College, Bengbu 233000, Anhui, People's Republic of China;
| | - Zhong Liu
- Department of General Surgery, The First Affiliated Hospital of Bengbu Medical College, Bengbu 233000, Anhui, People's Republic of China;
| | - Zheng Lu
- Department of General Surgery, The First Affiliated Hospital of Bengbu Medical College, Bengbu 233000, Anhui, People's Republic of China;
| | - Wan-Liang Sun
- Department of General Surgery, The First Affiliated Hospital of Bengbu Medical College, Bengbu 233000, Anhui, People's Republic of China;
| | - Xiang Ma
- Department of General Surgery, The First Affiliated Hospital of Bengbu Medical College, Bengbu 233000, Anhui, People's Republic of China;
| | - Pei Zhang
- Department of Pharmacy, Bengbu Medical College, Bengbu 233000, Anhui, People's Republic of China
| | - Bin-Quan Wu
- Department of General Surgery, The First Affiliated Hospital of Bengbu Medical College, Bengbu 233000, Anhui, People's Republic of China;
| | - Pei-Yuan Cui
- Department of General Surgery, The First Affiliated Hospital of Bengbu Medical College, Bengbu 233000, Anhui, People's Republic of China;
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28
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Sun Q, Zhang Y, Su J, Li T, Jiang Y. Role of Hydroxysteroid Dehydrogenase-Like 2 (HSDL2) in Human Ovarian Cancer. Med Sci Monit 2018; 24:3997-4008. [PMID: 29894468 PMCID: PMC6029517 DOI: 10.12659/msm.909418] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Background Ovarian cancer is a common type of malignant neoplasm. Its prognosis is poor because the disease is not well understood. Abnormal lipometabolism in peroxisomes is involved in tumor progression and hydroxysteroid dehydrogenase-like 2 (HSDL2), localized in peroxisomes, might be a regulatory factor in lipometabolism. However, the role of HSDL2 in ovarian cancer progression remains unknown. Material/Methods HSDL2 expression was detected by qPCR and immunohistochemistry in ovarian tumor samples and qPCR in human ovarian cancer cell lines. Cell proliferation was measured by Celigo and MTT assay. Cell cycle distribution and apoptosis were determined using flow cytometry. Giemsa staining was used for analyzing colony formation. Cell motility was performed using Transwell migration and invasion assays. Tumorigenesis in nude mice was also detected. Results HSDL2 expression was upregulated in human ovarian cancer samples and in 3 human ovarian cancer cell lines: SKOV3, HO8910, and OVCAR-3. Higher expression of HSDL2 in ovarian tumor samples was associated with more progressed tumors (P=0.03) and lymphatic metastases (P=0.03). HSDL2 down-regulation by lentiviral-mediated HSDL2 knockdown suppressed cell proliferation, colony formation, and cell motility, while it promoted cell apoptosis and resulted in cell cycle arrest at the G0/G1 phase in human ovarian cancer cell lines OVCAR-3 and SKOV3. HSDL2 knockdown also inhibited tumorigenesis in mouse models. Conclusions This study shows that HSDL2 upregulation is associated with ovarian cancer progression. HSDL2 knockdown inhibited cell proliferation, colony formation, motility, and tumorigenesis. It induced apoptosis and cell cycle arrest and might therefore serve as a potential target for ovarian cancer therapy.
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Affiliation(s)
- Qing Sun
- Department of Gynaecology and Obstetrics, Yijishan Hospital of Wannan Medical College, Wuhu, Anhui, China (mainland)
| | - Yilin Zhang
- Department of Gynecology and Obstetrics, Yijishan Hospital of Wannan Medical College, Wuhu, Anhui, China (mainland)
| | - Juanjuan Su
- Department of Gynecology and Obstetrics, Yijishan Hospital of Wannan Medical College, Wuhu, Anhui, China (mainland)
| | - Tiechen Li
- School of Preclinical Medicine, Wannan Medical College, Wuhu, Anhui, China (mainland)
| | - Yuxin Jiang
- School of Preclinical Medicine, Wannan Medical College, Wuhu, Anhui, China (mainland)
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29
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Mortenson DE, Brighty GJ, Plate L, Bare G, Chen W, Li S, Wang H, Cravatt BF, Forli S, Powers ET, Sharpless KB, Wilson IA, Kelly JW. "Inverse Drug Discovery" Strategy To Identify Proteins That Are Targeted by Latent Electrophiles As Exemplified by Aryl Fluorosulfates. J Am Chem Soc 2017; 140:200-210. [PMID: 29265822 DOI: 10.1021/jacs.7b08366] [Citation(s) in RCA: 185] [Impact Index Per Article: 26.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Drug candidates are generally discovered using biochemical screens employing an isolated target protein or by utilizing cell-based phenotypic assays. Both noncovalent and covalent hits emerge from such endeavors. Herein, we exemplify an "Inverse Drug Discovery" strategy in which organic compounds of intermediate complexity harboring weak, but activatable, electrophiles are matched with the protein(s) they react with in cells or cell lysate. An alkyne substructure in each candidate small molecule enables affinity chromatography-mass spectrometry, which produces a list of proteins that each distinct compound reacts with. A notable feature of this approach is that it is agnostic with respect to the cellular proteins targeted. To illustrate this strategy, we employed aryl fluorosulfates, an underexplored class of sulfur(VI) halides, that are generally unreactive unless activated by protein binding. Reversible aryl fluorosulfate binding, correct juxtaposition of protein side chain functional groups, and transition-state stabilization of the S(VI) exchange reaction all seem to be critical for conjugate formation. The aryl fluorosulfates studied thus far exhibit chemoselective reactivity toward Lys and, particularly, Tyr side chains, and can be used to target nonenzymes (e.g., a hormone carrier or a small-molecule carrier protein) as well as enzymes. The "Inverse Drug Discovery" strategy should be particularly attractive as a means to explore latent electrophiles not typically used in medicinal chemistry efforts, until one reacts with a protein target of exceptional interest. Structure-activity data can then be used to enhance the selectivity of conjugate formation or the covalent probe can be used as a competitor to develop noncovalent drug candidates. Here we use the "Inverse Drug Discovery" platform to identify and validate covalent ligands for 11 different human proteins. In the case of one of these proteins, we have identified and validated a small-molecule probe for the first time.
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Affiliation(s)
- David E Mortenson
- Department of Molecular Medicine, ‡Department of Chemistry, §Department of Integrative, Structural and Computational Biology, and ∥The Skaggs Institute for Chemical Biology, The Scripps Research Institute , La Jolla, California 92037, United States
| | - Gabriel J Brighty
- Department of Molecular Medicine, ‡Department of Chemistry, §Department of Integrative, Structural and Computational Biology, and ∥The Skaggs Institute for Chemical Biology, The Scripps Research Institute , La Jolla, California 92037, United States
| | - Lars Plate
- Department of Molecular Medicine, ‡Department of Chemistry, §Department of Integrative, Structural and Computational Biology, and ∥The Skaggs Institute for Chemical Biology, The Scripps Research Institute , La Jolla, California 92037, United States
| | - Grant Bare
- Department of Molecular Medicine, ‡Department of Chemistry, §Department of Integrative, Structural and Computational Biology, and ∥The Skaggs Institute for Chemical Biology, The Scripps Research Institute , La Jolla, California 92037, United States
| | - Wentao Chen
- Department of Molecular Medicine, ‡Department of Chemistry, §Department of Integrative, Structural and Computational Biology, and ∥The Skaggs Institute for Chemical Biology, The Scripps Research Institute , La Jolla, California 92037, United States
| | - Suhua Li
- Department of Molecular Medicine, ‡Department of Chemistry, §Department of Integrative, Structural and Computational Biology, and ∥The Skaggs Institute for Chemical Biology, The Scripps Research Institute , La Jolla, California 92037, United States
| | - Hua Wang
- Department of Molecular Medicine, ‡Department of Chemistry, §Department of Integrative, Structural and Computational Biology, and ∥The Skaggs Institute for Chemical Biology, The Scripps Research Institute , La Jolla, California 92037, United States
| | - Benjamin F Cravatt
- Department of Molecular Medicine, ‡Department of Chemistry, §Department of Integrative, Structural and Computational Biology, and ∥The Skaggs Institute for Chemical Biology, The Scripps Research Institute , La Jolla, California 92037, United States
| | - Stefano Forli
- Department of Molecular Medicine, ‡Department of Chemistry, §Department of Integrative, Structural and Computational Biology, and ∥The Skaggs Institute for Chemical Biology, The Scripps Research Institute , La Jolla, California 92037, United States
| | - Evan T Powers
- Department of Molecular Medicine, ‡Department of Chemistry, §Department of Integrative, Structural and Computational Biology, and ∥The Skaggs Institute for Chemical Biology, The Scripps Research Institute , La Jolla, California 92037, United States
| | - K Barry Sharpless
- Department of Molecular Medicine, ‡Department of Chemistry, §Department of Integrative, Structural and Computational Biology, and ∥The Skaggs Institute for Chemical Biology, The Scripps Research Institute , La Jolla, California 92037, United States
| | - Ian A Wilson
- Department of Molecular Medicine, ‡Department of Chemistry, §Department of Integrative, Structural and Computational Biology, and ∥The Skaggs Institute for Chemical Biology, The Scripps Research Institute , La Jolla, California 92037, United States
| | - Jeffery W Kelly
- Department of Molecular Medicine, ‡Department of Chemistry, §Department of Integrative, Structural and Computational Biology, and ∥The Skaggs Institute for Chemical Biology, The Scripps Research Institute , La Jolla, California 92037, United States
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30
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Wang Y, Chai Z, Wang M, Jin Y, Yang A, Li M. COPB2 suppresses cell proliferation and induces cell cycle arrest in human colon cancer by regulating cell cycle-related proteins. Exp Ther Med 2017; 15:777-784. [PMID: 29399086 PMCID: PMC5772868 DOI: 10.3892/etm.2017.5506] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Accepted: 10/31/2017] [Indexed: 01/28/2023] Open
Abstract
Coat proteins (COPs), including the major types clathrin, COPI and COPII, play a considerable role in intracellular transport by initiating the formation of transport vesicles. Coatomer protein complex subunit β2 (COPB2) is one of the seven subunits that make up a COPI complex. In the present study, we found that COPB2 was highly expressed in human colon cancer specimens. However, to date, there have been no reports describing the functions of COPB2 in human colon cancer cells. In this study, we analyzed the functions of COPB2 in the proliferation and cell cycle arrest of human RKO and HCT116 colon cancer cells by using lentivirus-mediated RNAi infection. Our results demonstrated that the silencing of COPB2 in vitro could inhibit the proliferation and colony formation abilities of RKO and HCT116 cells. Furthermore, measurement of cell cycle distribution indicated that the downregulation of COPB2 could induce G0/G1 or S phase cell cycle arrest by regulating cell cycle-related proteins. In conclusion, our results suggest that COPB2 plays a key role in the proliferation and cell cycle progression of human RKO and HCT116 colon cancer cells, thus indicating that COPB2 might be a potential therapeutic target for the treatment of human colon cancer.
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Affiliation(s)
- Yan Wang
- Institute of Integrated Traditional Chinese and Western Medicine, School of Basic Medical Sciences, Lanzhou University, Lanzhou, Gansu 730000, P.R. China.,Institute of Pathology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, Gansu 730000, P.R. China.,Department of Telemedicine Consultation Centre, Gansu Provincial Hospital, Lanzhou, Gansu 730000, P.R. China
| | - Zhi Chai
- Department of Telemedicine Consultation Centre, Gansu Provincial Hospital, Lanzhou, Gansu 730000, P.R. China
| | - Min Wang
- Institute of Integrated Traditional Chinese and Western Medicine, School of Basic Medical Sciences, Lanzhou University, Lanzhou, Gansu 730000, P.R. China.,Institute of Pathology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Yanling Jin
- Institute of Integrated Traditional Chinese and Western Medicine, School of Basic Medical Sciences, Lanzhou University, Lanzhou, Gansu 730000, P.R. China.,Institute of Pathology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Aijun Yang
- Institute of Integrated Traditional Chinese and Western Medicine, School of Basic Medical Sciences, Lanzhou University, Lanzhou, Gansu 730000, P.R. China.,Institute of Pathology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Min Li
- Institute of Integrated Traditional Chinese and Western Medicine, School of Basic Medical Sciences, Lanzhou University, Lanzhou, Gansu 730000, P.R. China.,Institute of Pathology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, Gansu 730000, P.R. China
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31
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Sun Y, Wang Q, Fang Y, Wu C, Lu G, Chen Z. Activation of the Nkx2.5-Calr-p53 signaling pathway by hyperglycemia induces cardiac remodeling and dysfunction in adult zebrafish. Dis Model Mech 2017; 10:1217-1227. [PMID: 28801532 PMCID: PMC5665450 DOI: 10.1242/dmm.026781] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Accepted: 07/31/2017] [Indexed: 01/19/2023] Open
Abstract
Hyperglycemia is an independent risk factor for diabetic cardiomyopathy in humans; however, the underlying mechanisms have not been thoroughly elucidated. Zebrafish (Danio rerio) was used in this study as a novel vertebrate model to explore the signaling pathways of human adult cardiomyopathy. Hyperglycemia was induced by alternately immersing adult zebrafish in a glucose solution or water. The hyperglycemic fish gradually exhibited some hallmarks of cardiomyopathy such as myocardial hypertrophy and apoptosis, myofibril loss, fetal gene reactivation, and severe arrhythmia. Echocardiography of the glucose-treated fish demonstrated diastolic dysfunction at an early stage and systolic dysfunction at a later stage, consistent with what is observed in diabetic patients. Enlarged hearts with decreased myocardial density, accompanied by decompensated cardiac function, indicated that apoptosis was critical in the pathological process. Significant upregulation of the expression of Nkx2.5 and its downstream targets calreticulin (Calr) and p53 was noted in the glucose-treated fish. High-glucose stimulation in vitro evoked marked apoptosis of primary cardiomyocytes, which was rescued by the p53 inhibitor pifithrin-μ. In vitro experiments were performed using compound treatment and genetically via cell infection. Genetically, knockout of Nkx2.5 induced decreased expression of Nkx2.5, Calr and p53 Upregulation of Calr resulted in increased p53 expression, whereas the level of Nkx2.5 remained unchanged. An adult zebrafish model of hyperglycemia-induced cardiomyopathy was successfully established. Hyperglycemia-induced myocardial apoptosis was mediated, at least in part, by activation of the Nkx2.5-Calr-p53 pathway in vivo, resulting in cardiac dysfunction and hyperglycemia-induced cardiomyopathy.
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Affiliation(s)
- Yanyi Sun
- Department of Cardiology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197, Ruijin Er Road, Shanghai, 200025, China
| | - Qiuyun Wang
- Department of Cardiology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197, Ruijin Er Road, Shanghai, 200025, China
| | - Yuehua Fang
- Department of Cardiology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197, Ruijin Er Road, Shanghai, 200025, China
| | - Chunfang Wu
- Department of Cardiology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197, Ruijin Er Road, Shanghai, 200025, China
| | - Guoping Lu
- Department of Cardiology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197, Ruijin Er Road, Shanghai, 200025, China
| | - Zhenyue Chen
- Department of Cardiology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197, Ruijin Er Road, Shanghai, 200025, China
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