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Feng Y, Lu H, Hu J, Zheng B, Zhang Y. Anti-Aging Effects of R-Phycocyanin from Porphyra haitanensis on HUVEC Cells and Drosophila melanogaster. Mar Drugs 2022; 20:md20080468. [PMID: 35892936 PMCID: PMC9329955 DOI: 10.3390/md20080468] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 07/15/2022] [Accepted: 07/19/2022] [Indexed: 12/10/2022] Open
Abstract
Aging has become a global public health challenge. Many studies have revealed that the excessive generation of ROS and oxidative stress could be the major causative factors contributing to aging. In this study, R-phycocyanin (R-PC) was isolated from Porphyra haitanensis, and its anti-aging ability was explored by natural aging Drosophila melanogaster and H2O2-induced HUVEC cells as the aging model. Results showed that R-PC α and β subunits expressed have antioxidant activity and can inhibit the generation of radicals, exhibiting a protective effect against H2O2-induced apoptotic HUVEC cells death. R-PC prevented the H2O2-induced HUVEC cell cycle phase arrest by regulating cell cycle-related protein. Furthermore, R-PC prevented the H2O2-induced HUVEC cell cycle phase arrest by regulating cell-cycle-related protein expression. In vivo study also indicated that R-PC significantly increased the survival time and alleviated the oxidative stress of Drosophila melanogaster. Moreover, R-PC notably decreased levels of ROS in natural aging flies and inhibited lipid peroxidation by enhancing the expressions of the endogenous stress marker genes (SOD1, SOD2, CAT of Drosophila melanogaster). Taken together, a study on the antioxidation extract from Porphyra haitanensis, such as R-PC, may open a new window for the prevention of anti-aging.
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Affiliation(s)
- Yanyu Feng
- Engineering Research Centre of Fujian-Taiwan Special Marine Food Processing and Nutrition, Ministry of Education, Fuzhou 350000, China; (Y.F.); (H.L.); (J.H.)
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350000, China
| | - Hanjin Lu
- Engineering Research Centre of Fujian-Taiwan Special Marine Food Processing and Nutrition, Ministry of Education, Fuzhou 350000, China; (Y.F.); (H.L.); (J.H.)
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350000, China
| | - Jiamiao Hu
- Engineering Research Centre of Fujian-Taiwan Special Marine Food Processing and Nutrition, Ministry of Education, Fuzhou 350000, China; (Y.F.); (H.L.); (J.H.)
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350000, China
| | - Baodong Zheng
- Engineering Research Centre of Fujian-Taiwan Special Marine Food Processing and Nutrition, Ministry of Education, Fuzhou 350000, China; (Y.F.); (H.L.); (J.H.)
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350000, China
- Correspondence: (B.Z.); (Y.Z.)
| | - Yi Zhang
- Engineering Research Centre of Fujian-Taiwan Special Marine Food Processing and Nutrition, Ministry of Education, Fuzhou 350000, China; (Y.F.); (H.L.); (J.H.)
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350000, China
- Correspondence: (B.Z.); (Y.Z.)
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Zhao J, Zhang P, Wang X. YBX1 promotes tumor progression via the PI3K/AKT signaling pathway in laryngeal squamous cell carcinoma. Transl Cancer Res 2021; 10:4859-4869. [PMID: 35116338 PMCID: PMC8797748 DOI: 10.21037/tcr-21-2087] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Accepted: 11/03/2021] [Indexed: 12/24/2022]
Abstract
BACKGROUND Laryngeal squamous cell carcinoma (LSCC) is one of the most commonly seen malignancies of the head and neck, with increasing incidence and mortality. The Y-box-binding protein 1 (YBX1) is a type of oncoprotein which is related to the malignant phenotype of many cancers. It is reported that YBX1 could regulate tumorigenesis, recurrence, and metastasis in multiple cancers. However, little is known about its carcinogenic function and mechanism in LSCC. METHODS Firstly, Through Oncomine StarBase, we found that the YBX1 mRNA level was increased in a variety of cancer tissues, including in the LSCC, compared with normal tissues. We silenced YBX1 in LSCC cells using short hairpin RNAs (shRNAs). Secondly, the biological function of YBX1 in LSCC cells was examined by the Cell Counting Kit-8 (CCK-8) assay, flow cytometry, the wound healing assay, and the transwell assay. Thirdly, the correlation between YBX1 and the PI3K/AKT pathway was verified by the western blot assay. RESULTS Expression of YBX1 is higher in a variety of cancer tissues, especially in the head and neck cancers. After transfected with lentiviral vectors, the expression of YBX1 was significantly silenced. Functionally, low expression of YBX1 promoted LSCC cell apoptosis and inhibited LSCC cell proliferation, migration, and invasion. The transfection of sh-YBX1 resulted in an obvious decrease in PI3K/AKT signaling molecules in LSCC cells. CONCLUSIONS We demonstrated that YBX1 could promote LSCC cell progression through the PI3K/AKT pathway, providing new insights into a potential biomarker and target for LSCC treatment.
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Affiliation(s)
- Jing Zhao
- Department of Otolaryngology, The Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Pu Zhang
- Department of Otolaryngology, The Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Xin Wang
- Department of Otolaryngology, The Third Hospital of Hebei Medical University, Shijiazhuang, China
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Y-Box Binding Protein-1: A Neglected Target in Pediatric Brain Tumors? Mol Cancer Res 2020; 19:375-387. [DOI: 10.1158/1541-7786.mcr-20-0655] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 10/21/2020] [Accepted: 11/20/2020] [Indexed: 11/16/2022]
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Sangermano F, Delicato A, Calabrò V. Y box binding protein 1 (YB-1) oncoprotein at the hub of DNA proliferation, damage and cancer progression. Biochimie 2020; 179:205-216. [PMID: 33058958 DOI: 10.1016/j.biochi.2020.10.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 10/06/2020] [Accepted: 10/07/2020] [Indexed: 12/15/2022]
Abstract
The Y Box binding protein 1 (YB-1) belongs to the highly conserved Cold Shock Domain protein family and is a major component of messenger ribonucleoprotein particles (mRNPs) in various organisms and cells. Cold Shock proteins are multifunctional nucleic acids binding proteins involved in a variety of cellular functions. Biological activities of YB-1 range from the regulation of transcription, splicing and translation, to the orchestration of exosomal RNA content. The role of YB-1 in malignant cell transformation and fate transition is the subject of intensive investigation. Besides, emerging evidence indicates that YB-1 participates in several DNA damage repair pathways as a non-canonical DNA repair factor thus pointing out that the protein can allow cancer cells to evade conventional anticancer therapies and avoid cell death. Here, we will attempt to collect and summarize the current knowledge on this subject and provide the basis for further lines of inquiry.
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Affiliation(s)
- Felicia Sangermano
- Dipartimento di Biologia, Università di Napoli Federico II, Complesso Universitario Monte S. Angelo, Via Cintia 4, 80126, Napoli, Italy.
| | - Antonella Delicato
- Dipartimento di Biologia, Università di Napoli Federico II, Complesso Universitario Monte S. Angelo, Via Cintia 4, 80126, Napoli, Italy
| | - Viola Calabrò
- Dipartimento di Biologia, Università di Napoli Federico II, Complesso Universitario Monte S. Angelo, Via Cintia 4, 80126, Napoli, Italy
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Mehta S, Algie M, Al-Jabry T, McKinney C, Kannan S, Verma CS, Ma W, Zhang J, Bartolec TK, Masamsetti VP, Parker K, Henderson L, Gould ML, Bhatia P, Harfoot R, Chircop M, Kleffmann T, Cohen SB, Woolley AG, Cesare AJ, Braithwaite A. Critical Role for Cold Shock Protein YB-1 in Cytokinesis. Cancers (Basel) 2020; 12:cancers12092473. [PMID: 32882852 PMCID: PMC7565962 DOI: 10.3390/cancers12092473] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 08/21/2020] [Accepted: 08/27/2020] [Indexed: 12/15/2022] Open
Abstract
Simple Summary Y-box-binding protein-1, YB-1, plays an important role in regulating the cell cycle, although precisely how it does the is unknown. Using live cell imaging, we show that YB-1 is essential for initiating the last step of cell division (cytokinesis), required for creation of two daughter cells. Using confocal microscopy we showed that YB-1 regulates the spatial distribution of key proteins essential for cytokinesis to occur and that this required YB-1 to be phosphorylated on several residues. In-silico modeling demonstrated that modifications at these residues resulted in conformational changes in YB-1 protein allowing it to interact with proteins essential for cytokinesis. As many cancers have high levels YB-1 and these are associated with poor prognosis, our data suggest developing small molecule inhibitors to block YB-1 phosphorylation could be a novel approach to cancer therapy. Abstract High levels of the cold shock protein Y-box-binding protein-1, YB-1, are tightly correlated with increased cell proliferation and progression. However, the precise mechanism by which YB-1 regulates proliferation is unknown. Here, we found that YB-1 depletion in several cancer cell lines and in immortalized fibroblasts resulted in cytokinesis failure and consequent multinucleation. Rescue experiments indicated that YB-1 was required for completion of cytokinesis. Using confocal imaging we found that YB-1 was essential for orchestrating the spatio-temporal distribution of the microtubules, β-actin and the chromosome passenger complex (CPC) to define the cleavage plane. We show that phosphorylation at six serine residues was essential for cytokinesis, of which novel sites were identified using mass spectrometry. Using atomistic modelling we show how phosphorylation at multiple sites alters YB-1 conformation, allowing it to interact with protein partners. Our results establish phosphorylated YB-1 as a critical regulator of cytokinesis, defining precisely how YB-1 regulates cell division.
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Affiliation(s)
- Sunali Mehta
- Department of Pathology, University of Otago, 9016 Dunedin, New Zealand; (M.A.); (C.M.); (K.P.); (L.H.); (M.L.G.); (P.B.); (R.H.); (A.G.W.); (A.B.)
- Maurice Wilkins Centre for Biodiscovery, University of Otago, 9016 Dunedin, New Zealand
- Correspondence: ; Tel.: +64-3-4797169
| | - Michael Algie
- Department of Pathology, University of Otago, 9016 Dunedin, New Zealand; (M.A.); (C.M.); (K.P.); (L.H.); (M.L.G.); (P.B.); (R.H.); (A.G.W.); (A.B.)
- Centre for Protein Research, Department of Biochemistry, University of Otago, 9054 Dunedin, New Zealand;
| | - Tariq Al-Jabry
- Children’s Medical Research Institute, University of Sydney, Westmead, NSW 2145, Australia; (T.S.-J.); (W.M.); (J.Z.); (T.K.B.); (V.P.M.); (M.C.); (S.B.C.); (A.J.C.)
| | - Cushla McKinney
- Department of Pathology, University of Otago, 9016 Dunedin, New Zealand; (M.A.); (C.M.); (K.P.); (L.H.); (M.L.G.); (P.B.); (R.H.); (A.G.W.); (A.B.)
| | - Srinivasaraghavan Kannan
- Department of Biomolecular Modelling and Design, Bioinformatics Institute (A*STAR), 30 Biopolis Street, 07-01 Matrix, Singapore 138671, Singapore; (S.K.); (C.S.V.)
| | - Chandra S Verma
- Department of Biomolecular Modelling and Design, Bioinformatics Institute (A*STAR), 30 Biopolis Street, 07-01 Matrix, Singapore 138671, Singapore; (S.K.); (C.S.V.)
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore 637551, Singapore
- Department of Biological Sciences, National University of Singapore, 16 Science Drive 4, Singapore 117543, Singapore
| | - Weini Ma
- Children’s Medical Research Institute, University of Sydney, Westmead, NSW 2145, Australia; (T.S.-J.); (W.M.); (J.Z.); (T.K.B.); (V.P.M.); (M.C.); (S.B.C.); (A.J.C.)
| | - Jessie Zhang
- Children’s Medical Research Institute, University of Sydney, Westmead, NSW 2145, Australia; (T.S.-J.); (W.M.); (J.Z.); (T.K.B.); (V.P.M.); (M.C.); (S.B.C.); (A.J.C.)
| | - Tara K. Bartolec
- Children’s Medical Research Institute, University of Sydney, Westmead, NSW 2145, Australia; (T.S.-J.); (W.M.); (J.Z.); (T.K.B.); (V.P.M.); (M.C.); (S.B.C.); (A.J.C.)
| | - V. Pragathi Masamsetti
- Children’s Medical Research Institute, University of Sydney, Westmead, NSW 2145, Australia; (T.S.-J.); (W.M.); (J.Z.); (T.K.B.); (V.P.M.); (M.C.); (S.B.C.); (A.J.C.)
| | - Kim Parker
- Department of Pathology, University of Otago, 9016 Dunedin, New Zealand; (M.A.); (C.M.); (K.P.); (L.H.); (M.L.G.); (P.B.); (R.H.); (A.G.W.); (A.B.)
| | - Luke Henderson
- Department of Pathology, University of Otago, 9016 Dunedin, New Zealand; (M.A.); (C.M.); (K.P.); (L.H.); (M.L.G.); (P.B.); (R.H.); (A.G.W.); (A.B.)
- Maurice Wilkins Centre for Biodiscovery, University of Otago, 9016 Dunedin, New Zealand
| | - Maree L Gould
- Department of Pathology, University of Otago, 9016 Dunedin, New Zealand; (M.A.); (C.M.); (K.P.); (L.H.); (M.L.G.); (P.B.); (R.H.); (A.G.W.); (A.B.)
| | - Puja Bhatia
- Department of Pathology, University of Otago, 9016 Dunedin, New Zealand; (M.A.); (C.M.); (K.P.); (L.H.); (M.L.G.); (P.B.); (R.H.); (A.G.W.); (A.B.)
| | - Rhodri Harfoot
- Department of Pathology, University of Otago, 9016 Dunedin, New Zealand; (M.A.); (C.M.); (K.P.); (L.H.); (M.L.G.); (P.B.); (R.H.); (A.G.W.); (A.B.)
| | - Megan Chircop
- Children’s Medical Research Institute, University of Sydney, Westmead, NSW 2145, Australia; (T.S.-J.); (W.M.); (J.Z.); (T.K.B.); (V.P.M.); (M.C.); (S.B.C.); (A.J.C.)
| | - Torsten Kleffmann
- Centre for Protein Research, Department of Biochemistry, University of Otago, 9054 Dunedin, New Zealand;
| | - Scott B Cohen
- Children’s Medical Research Institute, University of Sydney, Westmead, NSW 2145, Australia; (T.S.-J.); (W.M.); (J.Z.); (T.K.B.); (V.P.M.); (M.C.); (S.B.C.); (A.J.C.)
| | - Adele G Woolley
- Department of Pathology, University of Otago, 9016 Dunedin, New Zealand; (M.A.); (C.M.); (K.P.); (L.H.); (M.L.G.); (P.B.); (R.H.); (A.G.W.); (A.B.)
- Maurice Wilkins Centre for Biodiscovery, University of Otago, 9016 Dunedin, New Zealand
| | - Anthony J Cesare
- Children’s Medical Research Institute, University of Sydney, Westmead, NSW 2145, Australia; (T.S.-J.); (W.M.); (J.Z.); (T.K.B.); (V.P.M.); (M.C.); (S.B.C.); (A.J.C.)
| | - Antony Braithwaite
- Department of Pathology, University of Otago, 9016 Dunedin, New Zealand; (M.A.); (C.M.); (K.P.); (L.H.); (M.L.G.); (P.B.); (R.H.); (A.G.W.); (A.B.)
- Maurice Wilkins Centre for Biodiscovery, University of Otago, 9016 Dunedin, New Zealand
- Children’s Medical Research Institute, University of Sydney, Westmead, NSW 2145, Australia; (T.S.-J.); (W.M.); (J.Z.); (T.K.B.); (V.P.M.); (M.C.); (S.B.C.); (A.J.C.)
- Malaghan Institute of Medical Research, 6242 Wellington, New Zealand
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Cao X, Zhu N, Zhang Y, Chen Y, Zhang J, Li J, Hao P, Gao C, Li L. Y-box protein 1 promotes hypoxia/reoxygenation- or ischemia/reperfusion-induced cardiomyocyte apoptosis via SHP-1-dependent STAT3 inactivation. J Cell Physiol 2020; 235:8187-8198. [PMID: 31967332 DOI: 10.1002/jcp.29474] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2019] [Accepted: 01/07/2020] [Indexed: 12/20/2022]
Abstract
Cardiomyocyte apoptosis induced by hypoxia and ischemia plays important roles in heart dysfunction after acute myocardial infarction (AMI). However, the mechanism of apoptosis induction remains unclear. A previous study reported that Y-box protein 1 (YB1) is upregulated after myocardial hypoxia/reoxygenation or ischemia/reperfusion (H/R or I/R, respectively) injury; however, whether YB1 is associated with H/R-induced cardiomyocyte apoptosis is completely unknown. In the present study, we investigated the roles of YB1 in H/R-induced cardiomyocyte apoptosis and the possible underlying molecular mechanisms. In vitro, H/R treatment upregulated the YB1 expression in H9C2 cells, whereas YB1 knockdown inhibited H/R-induced cardiomyocyte apoptosis and induced H9C2 cell proliferation via Src homology region 2 domain-containing phosphatase 1 (SHP-1)-mediated activation of signal transducer and activator of transcription 3 (STAT3). In vivo, YB1 knockdown ameliorated AMI, reducing infarct size, cardiomyocyte apoptosis, and oxidative stress, via SHP-1-mediated inactivation of STAT3. Additionally, YB1 knockdown inhibited H/R- or I/R-induced oxidative stress in vitro and in vivo. H/R and I/R increase YB1 expression, and YB1 knockdown ameliorates AMI injury via SHP-1-dependent STAT3 inactivation.
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Affiliation(s)
- Xueming Cao
- Department of Cardiology, Henan Provincial Key Lab For Control of Coronary Heart Disease, Heart Center of Henan Provincial People's Hospital, Central China Fuwai Hospital, Central China Fuwai Hospital of Zhengzhou University, Zhengzhou, China
| | - Na Zhu
- Department of Health Management, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Henan University People's Hospital, Zhengzhou, Henan, China
| | - Yuwei Zhang
- Medical Genetic Institute of Henan Province, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Henan University People's Hospital, Zhengzhou, China
| | - Yan Chen
- Department of Cardiology, Henan Provincial Key Lab For Control of Coronary Heart Disease, Heart Center of Henan Provincial People's Hospital, Central China Fuwai Hospital, Central China Fuwai Hospital of Zhengzhou University, Zhengzhou, China
| | - Jing Zhang
- Department of Cardiology, Henan Provincial Key Lab For Control of Coronary Heart Disease, Heart Center of Henan Provincial People's Hospital, Central China Fuwai Hospital, Central China Fuwai Hospital of Zhengzhou University, Zhengzhou, China
| | - Jiang Li
- Henan Provincial Research Center of Natural Medicine Extraction and Medical Technology Application Engineering, Zhengzhou Railway Vocational Technical College, Zhengzhou, China
| | - Peiyuan Hao
- Department of Cardiology, Henan Provincial Key Lab For Control of Coronary Heart Disease, Heart Center of Henan Provincial People's Hospital, Central China Fuwai Hospital, Central China Fuwai Hospital of Zhengzhou University, Zhengzhou, China
| | - Chuanyu Gao
- Department of Cardiology, Henan Provincial Key Lab For Control of Coronary Heart Disease, Heart Center of Henan Provincial People's Hospital, Central China Fuwai Hospital, Central China Fuwai Hospital of Zhengzhou University, Zhengzhou, China
| | - Li Li
- Department of Scientific Research and Discipline Construction, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Henan University People's Hospital, Zhengzhou, Henan, China
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Maurya PK, Mishra A, Yadav BS, Singh S, Kumar P, Chaudhary A, Srivastava S, Murugesan SN, Mani A. Role of Y Box Protein-1 in cancer: As potential biomarker and novel therapeutic target. J Cancer 2017; 8:1900-1907. [PMID: 28819388 PMCID: PMC5556654 DOI: 10.7150/jca.17689] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2016] [Accepted: 02/03/2017] [Indexed: 12/28/2022] Open
Abstract
The Y-box binding protein (YB-1) is known to be a multifunctional transcription and translation factor during expression of several proteins. It is a vital oncoprotein that regulates cancer cell progression and proliferation. YB-1 is over-expressed in various human cancers such as breast cancer, colon cancer, lung cancer, gastric cancer, oesophageal cancer and glioblastoma. Nuclear expression of YB-1 is found to be associated with multidrug resistance and cancer cell progression. YB-1 is reported to regulate many cellular signalling pathways in different types of cancer proliferation. Knowledge about nuclear localization and nuclear level expression of YB-1 in different cancers has been correlated with prospective prognosis of cancer. This review discusses the prospects of YB-1 as a potential biomarker as well as therapeutic target in lieu of their role during cancer progression and multidrug resistance.
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Affiliation(s)
| | - Alok Mishra
- Department of Biotechnology, MNNIT Allahabad-211004
| | | | - Swati Singh
- Center of Bioinformatics, University of Allahabad, Allahabad-211002
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Xu G, Li Z, Wang L, Chen F, Chi Z, Gu M, li S, Wu D, Miao J, Zhang Y, Hao L, Fan Y. Label-free quantitative proteomics reveals differentially expressed proteins in high risk childhood acute lymphoblastic leukemia. J Proteomics 2017; 150:1-8. [DOI: 10.1016/j.jprot.2016.08.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2016] [Revised: 08/17/2016] [Accepted: 08/23/2016] [Indexed: 12/28/2022]
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Xiang Y, Song Y, Li Y, Zhao D, Ma L, Tan L. miR-483 is Down-Regulated in Polycystic Ovarian Syndrome and Inhibits KGN Cell Proliferation via Targeting Insulin-Like Growth Factor 1 (IGF1). Med Sci Monit 2016; 22:3383-3393. [PMID: 27662007 PMCID: PMC5040236 DOI: 10.12659/msm.897301] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Background Polycystic ovarian syndrome (PCOS) is a common metabolic disorder in premenopausal woman, characterized by hyperandrogenism, oligoanovulation, and insulin resistance. microRNAs play pivotal roles in regulating key factors of PCOS. However, relevant research remains limited. This study aimed to reveal the role and potential mechanism of miR-483 in PCOS. Material/Methods PCOS patients (n=20) were recruited for detecting miR-483 expression in lesion and normal ovary cortex. Human granulosa-like tumor cell line KGN was used to alter miR-483 expression by cell transfection. Cell viability and proliferation were analyzed by MTT assay and colony formation assay, and cell cycle was detected by flow cytometry. Interaction between miR-483 and IGF1 was verified by luciferase reporter assay. KGN cells were further treated by insulin to investigate the relationship between miR-483 and insulin. Results miR-483 was significantly down-regulated in lesion ovary cortex from PCOS patients (P<0.001). In KGN cells, overexpression of miR-483 inhibited cell viability and proliferation, and induced cell cycle arrest. miR-483 also inhibited CCNB1, CCND1, and CDK2. miR-483 sponge induced the opposite effects. miR-483 directly targeted IGF1 3′UTR, and IGF1 promoted KGN cell proliferation and reversed miR-483-inhibited cell viability. Insulin treatment in KGN cells inhibited miR-483, and promoted IGF1 and cell proliferation. Conclusions These results suggest that miR-483 is a PCOS suppressor inhibiting cell proliferation, possibly via targeting IGF1, and that it is involved in insulin-induced cell proliferation. miR-483 is a potential alternative for diagnosing and treating PCOS.
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Affiliation(s)
- Yungai Xiang
- Department of Reproductive Medicine, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China (mainland)
| | - Yuxia Song
- Department of Reproductive Medicine, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China (mainland)
| | - Yan Li
- Department of Reproductive Medicine, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China (mainland)
| | - Dongmei Zhao
- Department of Reproductive Medicine, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China (mainland)
| | - Liying Ma
- Department of Reproductive Medicine, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China (mainland)
| | - Li Tan
- Department of Reproductive Medicine, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China (mainland)
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Lee KH, Lin FC, Hsu TI, Lin JT, Guo JH, Tsai CH, Lee YC, Lee YC, Chen CL, Hsiao M, Lu PJ. MicroRNA-296-5p (miR-296-5p) functions as a tumor suppressor in prostate cancer by directly targeting Pin1. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2014; 1843:2055-66. [PMID: 24915000 DOI: 10.1016/j.bbamcr.2014.06.001] [Citation(s) in RCA: 83] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2014] [Revised: 05/29/2014] [Accepted: 06/02/2014] [Indexed: 12/15/2022]
Abstract
Upregulation of Pin1 was shown to advance the functioning of several oncogenic pathways. It was recently shown that Pin1 is potentially an excellent prognostic marker and can also serve as a novel therapeutic target for prostate cancer. However, the molecular mechanism of Pin1 overexpression in prostate cancer is still unclear. In the present study, we showed that the mRNA expression levels of Pin1 were not correlated with Pin1 protein levels in prostate cell lines which indicated that Pin1 may be regulated at the post-transcriptional level. A key player in post-transcriptional regulation is represented by microRNAs (miRNAs) that negatively regulate expressions of protein-coding genes at the post-transcriptional level. A bioinformatics analysis revealed that miR-296-5p has a conserved binding site in the Pin1 3'-untranslated region (UTR). A luciferase reporter assay demonstrated that the seed region of miR-296-5p directly interacts with the 3'-UTR of Pin1 mRNA. Moreover, miR-296-5p expression was found to be inversely correlated with Pin1 expression in prostate cancer cell lines and prostate cancer tissues. Furthermore, restoration of miR-296-5p or the knockdown of Pin1 had the same effect on the inhibition of the ability of cell proliferation and anchorage-independent growth of prostate cancer cell lines. Our results support miR-296-5p playing a tumor-suppressive role by targeting Pin1 and implicate potential effects of miR-296-5p on the prognosis and clinical application to prostate cancer therapy.
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Affiliation(s)
- Kuen-Haur Lee
- Graduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Forn-Chia Lin
- Institute of Clinical Medicine, Medical College, National Cheng Kung University, Tainan, Taiwan; Department of Radiation Oncology, National Cheng Kung University Hospital, Tainan, Taiwan
| | - Tai-I Hsu
- Institute of Basic Medical Sciences, Medical College, National Cheng Kung University, Tainan, Taiwan
| | - Jen-Tai Lin
- Institute of Clinical Medicine, Medical College, National Cheng Kung University, Tainan, Taiwan; Division of Urology, Department of Surgery, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
| | - Jing-Hong Guo
- Institute of Clinical Medicine, Medical College, National Cheng Kung University, Tainan, Taiwan
| | - Chen-Hsun Tsai
- Institute of Basic Medical Sciences, Medical College, National Cheng Kung University, Tainan, Taiwan
| | - Yu-Cheng Lee
- Institute of Basic Medical Sciences, Medical College, National Cheng Kung University, Tainan, Taiwan
| | - Yu-Chieh Lee
- Graduate Institute of Medical Sciences, Taipei Medical University, Taipei, Taiwan
| | - Chi-Long Chen
- Department of Pathology, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
| | - Michael Hsiao
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Pei-Jung Lu
- Institute of Clinical Medicine, Medical College, National Cheng Kung University, Tainan, Taiwan; Institute of Basic Medical Sciences, Medical College, National Cheng Kung University, Tainan, Taiwan.
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Interaction of Hepatitis C Viral Proteins with Cellular Oncoproteins in the Induction of Liver Cancer. ACTA ACUST UNITED AC 2014. [DOI: 10.1155/2014/351407] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Hepatitis C virus infection is a major health problem all over the world. A large proportion of patients infected by HCV develop liver cirrhosis or cancer. However, the mechanism(s) remain to be elucidated. Since HCV does not carry any known oncogene, it is thought that interaction between virally encoded proteins and host proteins is responsible for carcinogenesis. Many crucial interactions between HCV-encoded proteins and host proteins have been reported. In this review we focus on the interaction of viral proteins with important regulators of cell cycle—oncoproteins YB-1, p53, and cyclin D1—which play a major role in cell proliferation, apoptosis, DNA repair, and genomic stability. Genetic variants of HCV accumulate in patients and alter these interactions of host cell proteins. It is a battle between the virus and host and the final outcome depends on the winner; if the host succeeds in clearing the virus the patient may not develop serious liver diseases. On the other hand, if the virus dominates by evolving quasispecies which code for altered proteins that interact differently with host proteins, or induce mutations in host protooncogenes, then the patient may develop liver cirrhosis and/or liver cancer.
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Lindquist JA, Brandt S, Bernhardt A, Zhu C, Mertens PR. The role of cold shock domain proteins in inflammatory diseases. J Mol Med (Berl) 2014; 92:207-16. [PMID: 24562821 DOI: 10.1007/s00109-014-1136-3] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2013] [Revised: 01/17/2014] [Accepted: 02/10/2014] [Indexed: 12/15/2022]
Abstract
Cold shock domain proteins are characterized by the presence of one or more evolutionarily conserved cold shock domains, which each possess two nucleic acid-binding motifs. These proteins exert pleiotropic functions in cells via their ability to bind single-stranded RNA and/or DNA, thus allowing them to serve as transcriptional as well as translational regulators. Not only can they regulate their own expression, but they also regulate the expression of a number of pro- and anti-inflammatory cytokines, as well as cytokine receptors, making them key players in the orchestration of inflammatory processes and immune cell phenotypes. To add to their complexity, the expression of cold shock domain proteins is induced by cellular stress. At least one cold shock domain protein is actively secreted and binds to specific cell surface receptors, thereby influencing the proliferative and migratory capacity of the cell. The presence of cold shock domain proteins in the blood and/or urine of patients with cancer or inflammatory disease, as well as the identification of autoantibodies directed against these proteins make them potential targets of therapeutic interest.
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Affiliation(s)
- Jonathan A Lindquist
- Department of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University Magdeburg, Leipziger Strasse 44, 39120, Magdeburg, Germany
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Eliseeva IA, Kim ER, Guryanov SG, Ovchinnikov LP, Lyabin DN. Y-box-binding protein 1 (YB-1) and its functions. BIOCHEMISTRY (MOSCOW) 2012; 76:1402-33. [PMID: 22339596 DOI: 10.1134/s0006297911130049] [Citation(s) in RCA: 250] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
This review describes the structure and functions of Y-box binding protein 1 (YB-1) and its homologs. Interactions of YB-1 with DNA, mRNAs, and proteins are considered. Data on the participation of YB-1 in DNA reparation and transcription, mRNA splicing and translation are systematized. Results on interactions of YB-1 with cytoskeleton components and its possible role in mRNA localization are discussed. Data on intracellular distribution of YB-1, its redistribution between the nucleus and the cytoplasm, and its secretion and extracellular functions are summarized. The effect of YB-1 on cell differentiation, its involvement in extra- and intracellular signaling pathways, and its role in early embryogenesis are described. The mechanisms of regulation of YB-1 expression in the cell are presented. Special attention is paid to the involvement of YB-1 in oncogenic cell transformation, multiple drug resistance, and dissemination of tumors. Both the oncogenic and antioncogenic activities of YB-1 are reviewed. The potential use of YB-1 in diagnostics and therapy as an early cancer marker and a molecular target is discussed.
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Affiliation(s)
- I A Eliseeva
- Institute of Protein Research, Russian Academy of Sciences, Pushchino, Moscow Region, Russia
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