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Meng S, Shi C, Jia Y, Fu M, Zhang T, Wu N, Han H, Shen H. A combined clinical and specific genes' model to predict live birth for in vitro fertilization and embryo transfer patients. BMC Pregnancy Childbirth 2023; 23:702. [PMID: 37777726 PMCID: PMC10541716 DOI: 10.1186/s12884-023-05988-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Accepted: 09/10/2023] [Indexed: 10/02/2023] Open
Abstract
BACKGROUND We aimed to develop an accurate model to predict live birth for patients receiving in vitro fertilization and embryo transfer (IVF-ET) treatment. METHODS This is a prospective nested case-control study. Women aged between 18 and 38 years, whose body mass index (BMI) were between the range of 18.5-24 kg/m2, who had an endometrium of ≥ 8 mm at the thickest were enrolled from 2018/9 to 2020/8. All patients received IVF-ET treatment and were followed up until Jan. 2022 when they had reproductive outcomes. Endometrial samples during the window of implantation (LH + 6 to 9 days) were subjected to analyze specific endometrial receptivity genes' expression using real-time PCR (RT-PCR). Patients were divided into live birth group and non-live birth group based on IVF-ET outcomes. Clinical signatures relevant to live birth were collected, analyzed, and used to establish a predictive model for live birth by univariate analysis (clinical model). Specific endometrial receptivity genes' expression was analyzed, selected, and used to construct a predictive model for live birth by The Least Absolute Shrinkage and Selection Operator (LASSO) analysis (gene model). Finally, significant clinical factors and genes were used to construct a combined model for predicting live birth using multivariate logistical regression (combined model). Different models' Area Under Curve (AUC) were compared to identify the most predictive model. RESULTS Thirty-nine patients were enrolled in the study, twenty-four patients had live births, fifteen did not. In univariate analysis, the odds of live birth for women with ovulation dysfunction was 4 times higher than that for women with other IVF-ET indications (OR = 4.0, 95% CI: 1.125 - 8.910, P = 0.018). Age, body mass index, duration of infertility, primary infertility, repeated implantation failure, antral follicle counting, ovarian sensitivity index, anti-Mullerian hormone, controlled ovarian hyperstimulation protocol and duration, total dose of FSH/hMG, number of oocytes retrieved, regiment of endometrial preparation, endometrium thickness before embryo transfer, type of embryo transferred were not associated with live birth (P > 0.05). Only ovulation dysfunction was used to construct the clinical model and its AUC was 0.688. In lasso analysis, GAST, GPX3, THBS2 were found to promote the risk of live birth. AUCs for GAST, GPX3, THBS2 reached to 0.736, 0.672, and 0.678, respectively. The gene model was established based on these three genes and its AUC was 0.772. Ovulation dysfunction, GAST, GPX3, and THBS2 were finally used to construct the combined model, reaching the highest AUC (AUC = 0.842). CONCLUSIONS Compared to the single model, the combined model of clinical (Ovulation dysfunction) and specific genes (GAST, GPX3, THBS2) was more accurate to predict live birth for IVF-ET patients.
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Affiliation(s)
- Shihui Meng
- Department of Obstetrics and Gynecology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- Reproductive Medical Center, Department of Obstetrics and Gynecology, Peking University People's Hospital, Peking University, Beijing, 100044, China
| | - Cheng Shi
- Reproductive Medical Center, Department of Obstetrics and Gynecology, Peking University People's Hospital, Peking University, Beijing, 100044, China
| | - Yingying Jia
- Reproductive Medical Center, Department of Obstetrics and Gynecology, Peking University People's Hospital, Peking University, Beijing, 100044, China
| | - Min Fu
- Reproductive Medical Center, Department of Obstetrics and Gynecology, Peking University People's Hospital, Peking University, Beijing, 100044, China
| | - Tianzhen Zhang
- Reproductive Medical Center, Department of Obstetrics and Gynecology, Peking University People's Hospital, Peking University, Beijing, 100044, China
| | - Na Wu
- Department of Central Laboratory and Institute of Clinical Molecular Biology, Peking University People's Hospital, Beijing, China
| | - Hongjing Han
- Reproductive Medical Center, Department of Obstetrics and Gynecology, Peking University People's Hospital, Peking University, Beijing, 100044, China.
| | - Huan Shen
- Reproductive Medical Center, Department of Obstetrics and Gynecology, Peking University People's Hospital, Peking University, Beijing, 100044, China.
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2
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Mesdaghi S, Price RM, Madine J, Rigden DJ. Deep Learning-based structure modelling illuminates structure and function in uncharted regions of β-solenoid fold space. J Struct Biol 2023; 215:108010. [PMID: 37544372 DOI: 10.1016/j.jsb.2023.108010] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 07/19/2023] [Accepted: 08/03/2023] [Indexed: 08/08/2023]
Abstract
Repeat proteins are common in all domains of life and exhibit a wide range of functions. One class of repeat protein contains solenoid folds where the repeating unit consists of β-strands separated by tight turns. β-solenoids have distinguishing structural features such as handedness, twist, oligomerisation state, coil shape and size which give rise to their diversity. Characterised β-solenoid repeat proteins are known to form regions in bacterial and viral virulence factors, antifreeze proteins and functional amyloids. For many of these proteins, the experimental structure has not been solved, as they are difficult to crystallise or model. Here we use various deep learning-based structure-modelling methods to discover novel predicted β-solenoids, perform structural database searches to mine further structural neighbours and relate their predicted structure to possible functions. We find both eukaryotic and prokaryotic adhesins, confirming a known functional linkage between adhesin function and the β-solenoid fold. We further identify exceptionally long, flat β-solenoid folds as possible structures of mucin tandem repeat regions and unprecedentedly small β-solenoid structures. Additionally, we characterise a novel β-solenoid coil shape, the FapC Greek key β-solenoid as well as plausible complexes between it and other proteins involved in Pseudomonas functional amyloid fibres.
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Affiliation(s)
- Shahram Mesdaghi
- The University of Liverpool, Institute of Systems, Molecular & Integrative Biology, Biosciences Building, Crown Street, Liverpool L69 7ZB, United Kingdom; Computational Biology Facility, MerseyBio, University of Liverpool, Crown Street, Liverpool L69 7ZB, United Kingdom
| | - Rebecca M Price
- The University of Liverpool, Institute of Systems, Molecular & Integrative Biology, Biosciences Building, Crown Street, Liverpool L69 7ZB, United Kingdom
| | - Jillian Madine
- The University of Liverpool, Institute of Systems, Molecular & Integrative Biology, Biosciences Building, Crown Street, Liverpool L69 7ZB, United Kingdom.
| | - Daniel J Rigden
- The University of Liverpool, Institute of Systems, Molecular & Integrative Biology, Biosciences Building, Crown Street, Liverpool L69 7ZB, United Kingdom.
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3
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Wang J, Wan H, Mi Y, Wu S, Li J, Zhu L. TROAP Promotes the Proliferation, Migration, and Metastasis of Kidney Renal Clear Cell Carcinoma with the Help of STAT3. Int J Mol Sci 2023; 24:ijms24119658. [PMID: 37298609 DOI: 10.3390/ijms24119658] [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: 11/30/2022] [Revised: 05/29/2023] [Accepted: 05/31/2023] [Indexed: 06/12/2023] Open
Abstract
Kidney renal clear cell carcinoma (KIRC) is a subtype of renal cell carcinoma that threatens human health. The mechanism by which the trophinin-associated protein (TROAP)-an important oncogenic factor-functions in KIRC has not been studied. This study investigated the specific mechanism by which TROAP functions in KIRC. TROAP expression in KIRC was analyzed using the RNAseq dataset from the Cancer Genome Atlas (TCGA) online database. The Mann-Whitney U test was used to analyze the expression of this gene from clinical data. The Kaplan-Meier method was used for the survival analysis of KIRC. The expression level of TROAP mRNA in the cells was detected using qRT-PCR. The proliferation, migration, apoptosis, and cell cycle of KIRC were detected using Celigo, MTT, wound healing, cell invasion assay, and flow cytometry. A mouse subcutaneous xenograft experiment was designed to demonstrate the effect of TROAP expression on KIRC growth in vivo. To further investigate the regulatory mechanism of TROAP, we performed co-immunoprecipitation (CO-IP) and shotgun liquid chromatography-tandem mass spectrometry (LC-MS). TCGA-related bioinformatics analysis showed that TROAP was significantly overexpressed in KIRC tissues and was related to higher T and pathological stages, and a poor prognosis. The inhibition of TROAP expression significantly reduced the proliferation of KIRC, affected the cell cycle, promoted cell apoptosis, and reduced cell migration and invasion. The subcutaneous xenograft experiments showed that the size and weight of the tumors in mice were significantly reduced after TROAP-knockdown. CO-IP and post-mass spectrometry bioinformatics analyses revealed that TROAP may combine with signal transducer and activator of transcription 3 (STAT3) to achieve tumor progression in KIRC; this was verified by functional recovery experiments. TROAP may regulate KIRC proliferation, migration, and metastasis by binding to STAT3.
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Affiliation(s)
- Jun Wang
- Department of Urology, Affiliated Hospital of Jiangnan University, Wuxi 214122, China
- Department of Urology, First Affiliated Hospital of Nanjing Medical University, Nanjing 210008, China
| | - Hongyuan Wan
- Department of Urology, Affiliated Hospital of Jiangnan University, Wuxi 214122, China
- Wuxi Medical College, Jiangnan University, Wuxi 214122, China
| | - Yuanyuan Mi
- Department of Urology, Affiliated Hospital of Jiangnan University, Wuxi 214122, China
| | - Sheng Wu
- Department of Urology, Affiliated Hospital of Jiangnan University, Wuxi 214122, China
| | - Jie Li
- Department of Urology, First Affiliated Hospital of Nanjing Medical University, Nanjing 210008, China
| | - Lijie Zhu
- Department of Urology, Affiliated Hospital of Jiangnan University, Wuxi 214122, China
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He X, Hu J, Yan C, Liu X, Zhao Y, Yang P, Wang J, Li S, Zhang W, Dong G, Zhang W, Jing H. High trophinin-associated protein expression predicts good survival in acute myeloid leukemia with normal cytogenetics. Cancer Biomark 2023; 36:221-230. [PMID: 36938721 DOI: 10.3233/cbm-210042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Abstract
BACKGROUND Nearly half of adult acute myeloid leukemia (AML) patients were classified into cytogenetic normal acute myeloid leukemia (CN-AML). The expression level of Trophinin associated protein (TROAP) was proven to be associated with the prognosis of several cancers, but it is still unclear in the prognosis of patients with CN-AML. METHODS We integrated CN-AML patients samples from 4 datasets to analyze the relationship between TROAP expression and the survival of CN-AML. In addition, we investigated 92 AML patients of The Cancer Genome Atlas (TCGA) database to analyze the relationship between TROAP expression and the survival of AML patients received chemotherapy. We investigated the relationship between the expression of TROAP and drug sensitivity in AML cell lines. RESULTS CN-AML patients with high TROAP expression were related to good event-free survival (EFS) and overall survival (OS). In AML patients received chemotherapy, high TROAP expression was associated with good survival prognosis. Additionally, the expression of TROAP gene in leukemia stem cells (LSC) + group was lower. Among multiple drugs, the lower the expression of TROAP, the lower the IC50. CONCLUSION TROAP could serve as an independent predictor of CN-AML patients and could act as a potential biomarker for the prognosis of CN-AML. TROAP expression levels were closely correlated with the drug sensitivity of multiple drugs.
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Affiliation(s)
- Xue He
- Department of Pathology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,Department of Pathology, Capital Medical University, Beijing, China.,Department of Pathology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Jing Hu
- Department of Hematology, Lymphoma Research Center, Peking University Third Hospital, Beijing, China.,Department of Pathology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Changjian Yan
- The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian, China.,Department of Pathology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Xiaoni Liu
- Department of Respiratory Medicine, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, China
| | - Yali Zhao
- General Practice Medicine, The First People's Hospital of Huzhou, Huzhou, Zhejiang, China
| | - Ping Yang
- Department of Hematology, Lymphoma Research Center, Peking University Third Hospital, Beijing, China
| | - Jing Wang
- Department of Hematology, Lymphoma Research Center, Peking University Third Hospital, Beijing, China
| | - Shaoxiang Li
- Department of Pathology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,Department of Pathology, Capital Medical University, Beijing, China
| | - Wei Zhang
- Department of Pathology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,Department of Pathology, Capital Medical University, Beijing, China
| | - Gehong Dong
- Department of Pathology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,Department of Pathology, Capital Medical University, Beijing, China
| | - Weilong Zhang
- Department of Hematology, Lymphoma Research Center, Peking University Third Hospital, Beijing, China
| | - Hongmei Jing
- Department of Hematology, Lymphoma Research Center, Peking University Third Hospital, Beijing, China
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Siriwardena D, Boroviak TE. Evolutionary divergence of embryo implantation in primates. Philos Trans R Soc Lond B Biol Sci 2022; 377:20210256. [PMID: 36252209 DOI: 10.1098/rstb.2021.0256] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Implantation of the conceptus into the uterus is absolutely essential for successful embryo development. In humans, our understanding of this process has remained rudimentary owing to the inaccessibility of early implantation stages. Non-human primates recapitulate many aspects of human embryo development and provide crucial insights into trophoblast development, uterine receptivity and embryo invasion. Moreover, primate species exhibit a variety of implantation strategies and differ in embryo invasion depths. This review examines conservation and divergence of the key processes required for embryo implantation in different primates and in comparison with the canonical rodent model. We discuss trophectoderm compartmentalization, endometrial remodelling and embryo adhesion and invasion. Finally, we propose that studying the mechanism controlling invasion depth between different primate species may provide new insights and treatment strategies for placentation disorders in humans. This article is part of the theme issue 'Extraembryonic tissues: exploring concepts, definitions and functions across the animal kingdom'.
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Affiliation(s)
- Dylan Siriwardena
- Department of Physiology, Development and Neuroscience, University of Cambridge, Downing Site, Cambridge CB2 3EG, UK.,Centre for Trophoblast Research, University of Cambridge, Downing Site, Cambridge CB2 3EG, UK.,Wellcome Trust - Medical Research Council Stem Cell Institute, University of Cambridge, Jeffrey Cheah Biomedical Centre, Puddicombe Way, Cambridge CB2 0AW, UK
| | - Thorsten E Boroviak
- Department of Physiology, Development and Neuroscience, University of Cambridge, Downing Site, Cambridge CB2 3EG, UK.,Centre for Trophoblast Research, University of Cambridge, Downing Site, Cambridge CB2 3EG, UK.,Wellcome Trust - Medical Research Council Stem Cell Institute, University of Cambridge, Jeffrey Cheah Biomedical Centre, Puddicombe Way, Cambridge CB2 0AW, UK
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6
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Li Z, Pu Z, Yang Z, Zhu Y, Deng Y, Li N, Peng F. Pan-cancer analysis of trophinin-associated protein with potential implications in clinical significance, prognosis, and tumor microenvironment in human cancers. Front Oncol 2022; 12:971618. [PMID: 36419876 PMCID: PMC9677944 DOI: 10.3389/fonc.2022.971618] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Accepted: 10/13/2022] [Indexed: 08/24/2023] Open
Abstract
BACKGROUND Trophinin-associated protein (TROAP), a cytoplasmic protein, is essential for microtubule cytoskeleton assembly. Mounting evidence demonstrates the vital role of TROAP in regulating the proliferation and migration of cells, but it is unclear how it contributes to cancer progression. METHODS The online portals of GEPIA2, Cancer Cell Line Encyclopedia, UALCAN, Human Protein Atlas, and PrognoScan were used to analyze TROAP expression in various tumors and further evaluate its correlation with prognosis. With Western blot and quantitative real-time PCR analysis, we validated TROAP expression levels in hepatocellular carcinoma (HCC) and colorectal cancer (CRC). Ten pairs of HCC and CRC tissues were selected for immunohistochemistry to determine TROAP expression levels in tumors and adjacent tissues, respectively. TROAP knockdown in CRC and HCC cells to verify its role in malignant phenotypes. The genomic and post-transcriptional alterations of TROAP in tumors were determined using the cBioPortal and SangerBox databases. Also, TISIDB was used to investigate the relationship between TROAP expression and tumor microenvironment(TME) among different cancer types. Moreover, a correlation was found between the expression of TROAP and drug sensitivity using GSCALite and CellMiner databases. RESULTS TROAP expression was significantly upregulated in most cancer types, which is consistent with our validated experimental results in HCC and CRC cells, and immunohistochemistry results. And a poor prognosis was linked to TROAP aberrant expression. Our findings indicated that malignant phenotypes and tumorigenesis induced by TROAP could be due to an activation of the PI3K/Akt/GSK-3β signaling pathway. Furthermore, we found a correlation between TROAP expression and genomic and post-transcriptional alterations in various tumors, including tumor mutation burden, and microsatellite instability. Next, we demonstrated that TROAP expression was associated with the infiltration of immune cells, such as neutrophils and macrophages, and correlated with immunomodulation-related genes in the TME. Additionally, the potential role of TROAP expression in predicting the sensitivity of drugs, including melphalan and chlorambucil, was demonstrated. CONCLUSIONS Collectively, these findings indicated a significant correlation between TROAP expression and malignant phenotype, functional mechanism, survival possibility, TME, therapeutic potential, and prediction of drug sensitivity in various cancers. Hence, TROAP is a promising biomarker and therapeutic target for predicting cancer outcomes.
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Affiliation(s)
- Zhenfen Li
- Department of Blood Transfusion, Clinical Transfusion Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Health Commission (NHC) Key Laboratory of Cancer Proteomics, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Zhangya Pu
- Department of Infectious Diseases and Hunan Key Laboratory of Viral Hepatitis, Xiangya Hospital, Central South University, Changsha, China
| | - Ziyue Yang
- Department of Blood Transfusion, Clinical Transfusion Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Health Commission (NHC) Key Laboratory of Cancer Proteomics, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yuanyuan Zhu
- Department of Blood Transfusion, Clinical Transfusion Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Health Commission (NHC) Key Laboratory of Cancer Proteomics, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Ying Deng
- Department of Scientific Research Management, Ningxiang People’s Hospital, Hunan University Traditional Chinese Medicine, Ningxiang, Changsha, Hunan, China
| | - Ning Li
- Department of Blood Transfusion, Clinical Transfusion Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Fang Peng
- Department of Blood Transfusion, Clinical Transfusion Research Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Health Commission (NHC) Key Laboratory of Cancer Proteomics, Xiangya Hospital, Central South University, Changsha, Hunan, China
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Nataraj NB, Noronha A, Lee JS, Ghosh S, Mohan Raju HR, Sekar A, Zuckerman B, Lindzen M, Tarcitano E, Srivastava S, Selitrennik M, Livneh I, Drago-Garcia D, Rueda O, Caldas C, Lev S, Geiger T, Ciechanover A, Ulitsky I, Seger R, Ruppin E, Yarden Y. Nucleoporin-93 reveals a common feature of aggressive breast cancers: robust nucleocytoplasmic transport of transcription factors. Cell Rep 2022; 38:110418. [PMID: 35196484 PMCID: PMC8957480 DOI: 10.1016/j.celrep.2022.110418] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 10/14/2021] [Accepted: 02/01/2022] [Indexed: 12/14/2022] Open
Abstract
By establishing multi-omics pipelines, we uncover overexpression and gene copy-number alterations of nucleoporin-93 (NUP93), a nuclear pore component, in aggressive human mammary tumors. NUP93 overexpression enhances transendothelial migration and matrix invasion in vitro, along with tumor growth and metastasis in animal models. These findings are supported by analyses of two sets of naturally occurring mutations: rare oncogenic mutations and inactivating familial nephrotic syndrome mutations. Mechanistically, NUP93 binds with importins, boosts nuclear transport of importins' cargoes, such as β-catenin, and activates MYC. Likewise, NUP93 overexpression enhances the ultimate nuclear transport step shared by additional signaling pathways, including TGF-β/SMAD and EGF/ERK. The emerging addiction to nuclear transport exposes vulnerabilities of NUP93-overexpressing tumors. Congruently, myristoylated peptides corresponding to the nuclear translocation signals of SMAD and ERK can inhibit tumor growth and metastasis. Our study sheds light on an emerging hallmark of advanced tumors, which derive benefit from robust nucleocytoplasmic transport.
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Affiliation(s)
| | - Ashish Noronha
- Department of Biological Regulation, Weizmann Institute of Science, Rehovot, Israel
| | - Joo Sang Lee
- Cancer Data Science Lab, National Cancer Institute, NIH, Rockville, MD, USA
| | - Soma Ghosh
- Department of Biological Regulation, Weizmann Institute of Science, Rehovot, Israel
| | - Harsha Raj Mohan Raju
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Arunachalam Sekar
- Department of Biological Regulation, Weizmann Institute of Science, Rehovot, Israel
| | - Binyamin Zuckerman
- Department of Biological Regulation, Weizmann Institute of Science, Rehovot, Israel
| | - Moshit Lindzen
- Department of Biological Regulation, Weizmann Institute of Science, Rehovot, Israel
| | - Emilio Tarcitano
- Department of Biological Regulation, Weizmann Institute of Science, Rehovot, Israel
| | - Swati Srivastava
- Department of Biological Regulation, Weizmann Institute of Science, Rehovot, Israel
| | - Michael Selitrennik
- Department of Human Molecular Genetics and Biochemistry, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Ido Livneh
- Technion Integrated Cancer Center (TICC) and the Rappaport Faculty of Medicine and Research Institute, Technion-Israel Institute of Technology, Haifa, Israel
| | - Diana Drago-Garcia
- Department of Biological Regulation, Weizmann Institute of Science, Rehovot, Israel
| | - Oscar Rueda
- Cancer Research UK Cambridge Institute, University of Cambridge and the Cambridge Cancer Centre, Department of Oncology, Cambridge, UK
| | - Carlos Caldas
- Cancer Research UK Cambridge Institute, University of Cambridge and the Cambridge Cancer Centre, Department of Oncology, Cambridge, UK
| | - Sima Lev
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Tamar Geiger
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel; Department of Human Molecular Genetics and Biochemistry, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Aaron Ciechanover
- Technion Integrated Cancer Center (TICC) and the Rappaport Faculty of Medicine and Research Institute, Technion-Israel Institute of Technology, Haifa, Israel
| | - Igor Ulitsky
- Department of Biological Regulation, Weizmann Institute of Science, Rehovot, Israel
| | - Rony Seger
- Department of Biological Regulation, Weizmann Institute of Science, Rehovot, Israel
| | - Eytan Ruppin
- Cancer Data Science Lab, National Cancer Institute, NIH, Rockville, MD, USA
| | - Yosef Yarden
- Department of Biological Regulation, Weizmann Institute of Science, Rehovot, Israel.
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8
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Zhang J, Tang H, Jiang X, Huang N, Wei Q. Hypoxia-Induced miR-378a-3p Inhibits Osteosarcoma Invasion and Epithelial-to-Mesenchymal Transition via BYSL Regulation. Front Genet 2022; 12:804952. [PMID: 35154253 PMCID: PMC8831866 DOI: 10.3389/fgene.2021.804952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 12/27/2021] [Indexed: 11/26/2022] Open
Abstract
The bystin-like (BYSL) gene is expressed in a wide range of eukaryotes and is closely associated with tumor progression. However, its function and mechanism in osteosarcoma remain unclear. Herein, the protein expression and clinical role of BYSL in human osteosarcoma tissues were assessed. High expression of BYSL was positively related to the metastasis status and poor patient prognosis. Mechanistically, upregulation of BYSL enhanced Nrf2 expression under hypoxia in osteosarcoma cells. MicroRNAs are important epigenetic regulators of osteosarcoma development. Noteworthy, bioinformatics analysis, dual-luciferase reporter and rescue assays showed that miR-378a-3p inhibited BYSL expression by binding to its 3′-untranslated region. Analysis of miR-378a-3p function under hypoxia and normoxia showed that its upregulation suppressed osteosarcoma cells invasion and inhibited epithelial-to-mesenchymal transition by suppressing BYSL. Collectively, the results show that the miR-378a-3p/BYSL may associate with metastasis risk in osteosarcoma.
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Affiliation(s)
- Junlei Zhang
- Department of Orthopedics, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Haijun Tang
- Department of Orthopedics, Affiliated Minzu Hospital of Guangxi Medical University, Nanning, China
| | - Xiaohong Jiang
- Department of Orthopedics, Affiliated Minzu Hospital of Guangxi Medical University, Nanning, China
| | - Nenggan Huang
- Department of Orthopedics, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Qingjun Wei
- Department of Orthopedics, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
- *Correspondence: Qingjun Wei,
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9
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Gao B, Wang L, Zhang Y, Zhang N, Han M, Liu H, Sun D, Liu Y. MiR-532-3p suppresses cell viability, migration and invasion of clear cell renal cell carcinoma through targeting TROAP. Cell Cycle 2021; 20:1578-1588. [PMID: 34287099 DOI: 10.1080/15384101.2021.1953767] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Clear cell renal cell carcinoma (ccRCC) is a subtype of renal cell cancer with the highest mortality, infiltration, and metastasis rate, threatening human health. Despite oncogenic role of TROAP in various cancers, its function in ccRCC remains to be unraveled. The differentially expressed mRNAs (DEmRNAs) and miRNAs (DEmiRNAs) were obtained by analyzing the related data sets of ccRCC in TCGA. The expression levels of mRNAs and miRNAs in the cell were detected by qRT-PCR, while the protein levels were characterized by western blot. The viability, migratory and invasive abilities of ccRCC cells were determined by MTT, wound healing and cell invasion assays. The combination of miRNA target site prediction and dual-luciferase reporter gene assay verified the binding relationship between miR-532-3p and TROAP. Research on ccRCC displayed that TROAP expression was upregulated, while miR-532-3p was down-regulated. Besides, upregulation of TROAP could accelerate viability, migratory and invasive potentials of ccRCC cells. On the contrary, miR-532-3p could downregulate TROAP level, but TROAP upregulation reversed the viability, migration, and invasion of ccRCC cells. MiR-532-3p could attenuate the viability, migration and invasion of ccRCC cells by targeting TROAP. This may generate novel insights into molecular therapeutic targets for ccRCC.
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Affiliation(s)
- Bin Gao
- Department of Urology, Tangshan Central Hospital, Tangshan, Hebei, P.R. China
| | - Lijuan Wang
- Department of Urology, Tangshan Central Hospital, Tangshan, Hebei, P.R. China
| | - Yubo Zhang
- Department of Urology, Tangshan Central Hospital, Tangshan, Hebei, P.R. China
| | - Na Zhang
- Department of Urology, Tangshan Central Hospital, Tangshan, Hebei, P.R. China
| | - Miaomiao Han
- Department of Urology, Tangshan Central Hospital, Tangshan, Hebei, P.R. China
| | - Huancai Liu
- Department of Urology, Tangshan Central Hospital, Tangshan, Hebei, P.R. China
| | - Dongli Sun
- Department of Urology, Tangshan Central Hospital, Tangshan, Hebei, P.R. China
| | - Yifei Liu
- Department of Urology, Tangshan Central Hospital, Tangshan, Hebei, P.R. China
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10
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Shinkai Y, Kuramochi M, Miyafusa T. New Family Members of FG Repeat Proteins and Their Unexplored Roles During Phase Separation. Front Cell Dev Biol 2021; 9:708702. [PMID: 34322491 PMCID: PMC8311347 DOI: 10.3389/fcell.2021.708702] [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: 05/12/2021] [Accepted: 06/17/2021] [Indexed: 12/26/2022] Open
Abstract
The condensation and compartmentalization of biomacromolecules in the cell are driven by the process of phase separation. The main effectors of phase separation are intrinsically disordered proteins, which include proteins with a phenylalanine-glycine (FG) repeat domain. Our understanding of the biological function of FG repeat proteins during phase separation has been mainly derived from recent research on a member of the nuclear pore complex proteins, nucleoporins containing FG repeat domain (FG-NUPs). FG-NUPs form meshwork structures by inter- and intra-molecular FG domain interactions, which confine the nucleo-cytoplasmic exchange. Whereas FG-NUPs localize in the nuclear membrane, other FG repeat proteins reside in the cytoplasm and the nucleoplasm, and the biological function of the FG repeat domain of these proteins is not well described. In the present review, we list the FG repeat proteins that are known to phase separate in the cell, and review their biological functions. We extract the unraveled features of FG repeat proteins as an activator of barrier formation and homotypic cell-cell interactions. Understanding the regulatory mechanisms of FG repeat proteins will provide a potential delivery tool for therapeutic reagents.
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Affiliation(s)
- Yoichi Shinkai
- Molecular Neurobiology Research Group, Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Japan
| | - Masahiro Kuramochi
- Graduate School of Science and Engineering, Ibaraki University, Hitachi, Japan
| | - Takamitsu Miyafusa
- Bio-System Research Group, Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Japan
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11
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Li L, Wei JR, Song Y, Fang S, Du Y, Li Z, Zeng TT, Zhu YH, Li Y, Guan XY. TROAP switches DYRK1 activity to drive hepatocellular carcinoma progression. Cell Death Dis 2021; 12:125. [PMID: 33500384 PMCID: PMC7838256 DOI: 10.1038/s41419-021-03422-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 12/17/2020] [Accepted: 12/21/2020] [Indexed: 12/24/2022]
Abstract
Hepatocellular carcinoma (HCC) is one of the common malignancy and lacks effective therapeutic targets. Here, we demonstrated that ectopic expression of trophinin-associated protein (TROAP) dramatically drove HCC cell growth assessed by foci formation in monolayer culture, colony formation in soft agar and orthotopic liver transplantation in nude mice. Inversely, silencing TROAP expression with short-hairpin RNA attenuated the malignant proliferation of HCC cells in vitro and in vivo. Next, mechanistic investigation revealed that TROAP directly bound to dual specificity tyrosine phosphorylation regulated kinase 1A/B (DYRK1A/B), resulting in the cytoplasmic retention of proteins DYRK1A/B and promoting cell cycle process via activation of Akt/GSK-3β signaling. Combination of cisplatin with an inhibitor of DYRK1 AZ191 effectively inhibited tumor growth in mouse model for HCC cells with high level of TROAP. Clinically, TROAP was significantly upregulated by miR-142-5p in HCC tissues, which predicted the poor survival of patients with HCC. Therefore, TROAP/DYRK1/Akt axis may be a promising therapeutic target and prognostic indicator for patients with HCC.
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Affiliation(s)
- Lei Li
- State Key Laboratory of Oncology in South China and Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, 510060, Guangzhou, China.
- Department of Clinical Oncology, State Key Laboratory for Liver Research, The University of Hong Kong, Hong Kong, China.
- Department of Clinical Oncology Center, The University of Hongkong-Shenzhen Hospital, 518053, Shenzhen, China.
| | - Jia-Ru Wei
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, 510060, Guangzhou, China
| | - Ye Song
- Affiliated Cancer Hospital & Institutes of Guangzhou Medical University, Guangzhou Key Medical Discipline Construction Project, 510095, Guangzhou, China
| | - Shuo Fang
- The Seventh Affiliated Hospital, Sun Yat-sen University, 518100, Shenzhen, China
| | - Yanyu Du
- The Seventh Affiliated Hospital, Sun Yat-sen University, 518100, Shenzhen, China
| | - Zhuo Li
- State Key Laboratory of Oncology in South China and Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, 510060, Guangzhou, China
| | - Ting-Ting Zeng
- State Key Laboratory of Oncology in South China and Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, 510060, Guangzhou, China
| | - Ying-Hui Zhu
- State Key Laboratory of Oncology in South China and Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, 510060, Guangzhou, China
| | - Yan Li
- State Key Laboratory of Oncology in South China and Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, 510060, Guangzhou, China
| | - Xin-Yuan Guan
- State Key Laboratory of Oncology in South China and Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, 510060, Guangzhou, China.
- Department of Clinical Oncology, State Key Laboratory for Liver Research, The University of Hong Kong, Hong Kong, China.
- Department of Clinical Oncology Center, The University of Hongkong-Shenzhen Hospital, 518053, Shenzhen, China.
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12
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Sha Z, Zhou J, Wu Y, Zhang T, Li C, Meng Q, Musunuru PP, You F, Wu Y, Yu R, Gao S. BYSL Promotes Glioblastoma Cell Migration, Invasion, and Mesenchymal Transition Through the GSK-3β/β-Catenin Signaling Pathway. Front Oncol 2020; 10:565225. [PMID: 33178594 PMCID: PMC7593785 DOI: 10.3389/fonc.2020.565225] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Accepted: 08/31/2020] [Indexed: 12/30/2022] Open
Abstract
BYSL, which encodes the human bystin protein, is a sensitive marker for astrocyte proliferation during brain damage and inflammation. Previous studies have revealed that BYSL has important roles in embryo implantation and prostate cancer infiltration. However, the role and mechanism of BYSL in glioblastoma (GBM) cell migration and invasion remain unknown. We found that knockdown of BYSL inhibited cell migration and invasion, downregulated the expression of mesenchymal markers (e.g., β-catenin and N-cadherin), and upregulated the expression of epithelial marker E-cadherin in GBM cell lines. Overexpression of BYSL promoted GBM cell migration, invasion, and epithelial-mesenchymal transition (EMT). In addition, the role of BYSL in promoting EMT was further confirmed in a glioma stem cell line derived from a GBM patient. Mechanistically, overexpression of BYSL increased the phosphorylation of GSK-3β and the nuclear distribution of β-catenin. Inhibition of GSK-3β by 1-Azakenpaullone could partially reverse the effects of BYSL downregulation on the transcriptional activity of β-catenin, the expression of EMT markers, and GBM cell migration/invasion. Moreover, immunohistochemical analysis showed strong expression of BYSL in GBM tissues, which was positively correlated with markers of mesenchymal GBM. These results suggest that BYSL promotes GBM cell migration, invasion, and EMT through the GSK-3β/β-catenin signaling pathway.
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Affiliation(s)
- Zhuang Sha
- Institute of Nervous System Diseases, The Affiliated Hospital of Xuzhou Medical University, Xuzhou Medical University, Xuzhou, China.,Department of Neurosurgery, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Junbo Zhou
- Institute of Nervous System Diseases, The Affiliated Hospital of Xuzhou Medical University, Xuzhou Medical University, Xuzhou, China.,Department of Neurosurgery, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Yihao Wu
- Institute of Nervous System Diseases, The Affiliated Hospital of Xuzhou Medical University, Xuzhou Medical University, Xuzhou, China.,Department of Neurosurgery, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Tong Zhang
- Department of Neurosurgery, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Cheng Li
- Institute of Nervous System Diseases, The Affiliated Hospital of Xuzhou Medical University, Xuzhou Medical University, Xuzhou, China.,Department of Neurosurgery, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Qingming Meng
- Department of Neurosurgery, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Preethi Priyanka Musunuru
- Institute of Nervous System Diseases, The Affiliated Hospital of Xuzhou Medical University, Xuzhou Medical University, Xuzhou, China.,Department of Neurosurgery, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Fangting You
- Institute of Nervous System Diseases, The Affiliated Hospital of Xuzhou Medical University, Xuzhou Medical University, Xuzhou, China.,Department of Neurosurgery, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Yue Wu
- Institute of Nervous System Diseases, The Affiliated Hospital of Xuzhou Medical University, Xuzhou Medical University, Xuzhou, China.,Department of Neurosurgery, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Rutong Yu
- Institute of Nervous System Diseases, The Affiliated Hospital of Xuzhou Medical University, Xuzhou Medical University, Xuzhou, China.,Department of Neurosurgery, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Shangfeng Gao
- Institute of Nervous System Diseases, The Affiliated Hospital of Xuzhou Medical University, Xuzhou Medical University, Xuzhou, China.,Department of Neurosurgery, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
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13
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Abstract
Nasopharyngeal carcinoma (NPC) is the most common malignant tumor with a remarkable racial and geographical distribution including people in southern China, South East Asia, and the Middle East/North Africa. DNA methylation is an important manifestation of epigenetic modification, has been studied over several decades, and by regulating and controlling the expression of cancer-related genesits, abnormal DNA methylation can influence in a variety of human malignancy tumors.Until now, there is no analysis focus on differentially methylated, differential expressed genes (MDEGs) study, so we make a joint analysis for both gene methylation profiling microarray and gene expression profiling microarray in NPC. Two gene expression datasets (GSE64634 and GSE12452) and gene methylation profiling data set (GSE62336) were downloaded from GEO and analyzed using the online tool GEO2R to identify MDEGs. Gene ontology (GO) functional analysis and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis of the differentially methylated genes were performed. The STRING database was used to evaluate the interactions of MDEGs and to construct a protein-protein interaction (PPI) network using Cytoscape software. Hub genes were validated with the cBioPortal database.The overlap among the 3 datasets contained 135 hypermethylation genes and 541 hypomethylation genes between NPC and non-NPC samples. A total of 4 genes (TROAP, PCOLCE2, HOXA4, and C1QB) in Hyper-LGs and 14 genes (DYNC1H1, LNX1, RAB37, ALDH3A1, SLC24A4, CP, CEP250, ANK2, DNAI2, MUC13, ACACB, GABRP, STX7, and TTC9) in Hypo-HGs were identified as hub genes.The study of DNA methylation and gene expression provides us a strong support as well as new comprehensive information of MDEGs to the revelation of nasopharyngeal carcinoma's complex pathogenesis. However, further studies are needed to elucidate the biological function of these genes in NPC in the future.
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Affiliation(s)
- Zeng-hong Wu
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Department of Infectious Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Tao Zhou
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Hai-Ying Sun
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Department of Otolaryngology-Head and Neck Surgery, Stanford University School of Medicine, Stanford, CA
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14
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D'Occhio MJ, Campanile G, Zicarelli L, Visintin JA, Baruselli PS. Adhesion molecules in gamete transport, fertilization, early embryonic development, and implantation-role in establishing a pregnancy in cattle: A review. Mol Reprod Dev 2020; 87:206-222. [PMID: 31944459 DOI: 10.1002/mrd.23312] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 12/19/2019] [Indexed: 12/11/2022]
Abstract
Cell-cell adhesion molecules have critically important roles in the early events of reproduction including gamete transport, sperm-oocyte interaction, embryonic development, and implantation. Major adhesion molecules involved in reproduction include cadherins, integrins, and disintegrin and metalloprotease domain-containing (ADAM) proteins. ADAMs on the surface of sperm adhere to integrins on the oocyte in the initial stages of sperm-oocyte interaction and fusion. Cadherins act in early embryos to organize the inner cell mass and trophectoderm. The trophoblast and uterine endometrial epithelium variously express cadherins, integrins, trophinin, and selectin, which achieve apposition and attachment between the elongating conceptus and uterine epithelium before implantation. An overview of the major cell-cell adhesion molecules is presented and this is followed by examples of how adhesion molecules help shape early reproductive events. The argument is made that a deeper understanding of adhesion molecules and reproduction will inform new strategies that improve embryo survival and increase the efficiency of natural mating and assisted breeding in cattle.
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Affiliation(s)
- Michael J D'Occhio
- School of Life and Environmental Sciences, Faculty of Science, The University of Sydney, Sydney, NSW, Australia
| | - Giuseppe Campanile
- Department of Veterinary Medicine and Animal Production, University of Naples Federico II, Naples, Italy
| | - Luigi Zicarelli
- Department of Veterinary Medicine and Animal Production, University of Naples Federico II, Naples, Italy
| | - José A Visintin
- Department of Animal Reproduction, Faculty of Veterinary Medicine and Animal Science, University of Sao Paulo, Sao Paulo, Brazil
| | - Pietro S Baruselli
- Department of Animal Reproduction, Faculty of Veterinary Medicine and Animal Science, University of Sao Paulo, Sao Paulo, Brazil
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15
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He Y, Chang Y, Bao L, Yu M, Li R, Niu J, Fan G, Song W, Seim I, Qin Y, Li X, Liu J, Kong X, Peng M, Sun M, Wang M, Qu J, Wang X, Liu X, Wu X, Zhao X, Wang X, Zhang Y, Guo J, Liu Y, Liu K, Wang Y, Zhang H, Liu L, Wang M, Yu H, Wang X, Cheng J, Wang Z, Xu X, Wang J, Yang H, Lee SMY, Liu X, Zhang Q, Qi J. A chromosome-level genome of black rockfish, Sebastes schlegelii, provides insights into the evolution of live birth. Mol Ecol Resour 2019; 19:1309-1321. [PMID: 31077549 DOI: 10.1111/1755-0998.13034] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 04/29/2019] [Accepted: 05/06/2019] [Indexed: 12/26/2022]
Abstract
The black rockfish (Sebastes schlegelii) is a teleost in which eggs are fertilized internally and retained in the maternal reproductive system, where they undergo development until live birth (viviparity). In the present study, we report a chromosome-level black rockfish genome assembly. High-throughput transcriptome analysis (RNA-seq and ATAC-seq) coupled with in situ hybridization (ISH) and immunofluorescence reveal several candidate genes for maternal preparation, sperm storage and release, and hatching. We propose that zona pellucida (ZP) proteins retain sperm at the oocyte envelope, while genes in two distinct astacin metalloproteinase subfamilies serve to release sperm from the ZP and free the embryo from chorion at prehatching stage. We present a model of black rockfish reproduction, and propose that the rockfish ovarian wall has a similar function to the uterus of mammals. Together, these genomic data reveal unprecedented insights into the evolution of an unusual teleost life history strategy, and provide a sound foundation for studying viviparity in nonmammalian vertebrates and an invaluable resource for rockfish ecological and evolutionary research.
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Affiliation(s)
- Yan He
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China.,Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Yue Chang
- BGI-Shenzhen, Shenzhen, China.,BGI-Qingdao, BGI-Shenzhen, Qingdao, China
| | - Lisui Bao
- The University of Chicago, Chicago, Illinois
| | - Mengjun Yu
- BGI-Qingdao, BGI-Shenzhen, Qingdao, China.,China National GeneBank, BGI-Shenzhen, Shenzhen, China
| | - Rui Li
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Jingjing Niu
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Guangyi Fan
- BGI-Qingdao, BGI-Shenzhen, Qingdao, China.,China National GeneBank, BGI-Shenzhen, Shenzhen, China.,State Key Laboratory of Quality Research in Chinese Medicine and Institute of Chinese Medical Sciences, Macao, China
| | - Weihao Song
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Inge Seim
- Integrative Biology Laboratory, College of Life Sciences, Nanjing Normal University, Nanjing, China.,Comparative and Endocrine Biology Laboratory, Translational Research Institute-Institute of Health and Biomedical Innovation, School of Biomedical Sciences, Queensland University of Technology, Brisbane, Australia
| | - Yating Qin
- BGI-Qingdao, BGI-Shenzhen, Qingdao, China.,China National GeneBank, BGI-Shenzhen, Shenzhen, China
| | - Xuemei Li
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Jinxiang Liu
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Xiangfu Kong
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Meiting Peng
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Minmin Sun
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Mengya Wang
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Jiangbo Qu
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Xuangang Wang
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Xiaobing Liu
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Xiaolong Wu
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Xi Zhao
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Xuliang Wang
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Yaolei Zhang
- BGI-Qingdao, BGI-Shenzhen, Qingdao, China.,China National GeneBank, BGI-Shenzhen, Shenzhen, China
| | - Jiao Guo
- BGI-Qingdao, BGI-Shenzhen, Qingdao, China.,China National GeneBank, BGI-Shenzhen, Shenzhen, China
| | - Yang Liu
- BGI-Qingdao, BGI-Shenzhen, Qingdao, China.,China National GeneBank, BGI-Shenzhen, Shenzhen, China
| | - Kaiqiang Liu
- BGI-Qingdao, BGI-Shenzhen, Qingdao, China.,China National GeneBank, BGI-Shenzhen, Shenzhen, China
| | - Yilin Wang
- BGI-Qingdao, BGI-Shenzhen, Qingdao, China.,China National GeneBank, BGI-Shenzhen, Shenzhen, China
| | - He Zhang
- BGI-Qingdao, BGI-Shenzhen, Qingdao, China.,Department of Biology, Hong Kong Baptist University, Hong Kong, China
| | - Longqi Liu
- BGI-Shenzhen, Shenzhen, China.,China National GeneBank, BGI-Shenzhen, Shenzhen, China
| | - Mingyue Wang
- BGI-Shenzhen, Shenzhen, China.,China National GeneBank, BGI-Shenzhen, Shenzhen, China
| | - Haiyang Yu
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Xubo Wang
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Jie Cheng
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Zhigang Wang
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Xun Xu
- BGI-Shenzhen, Shenzhen, China.,China National GeneBank, BGI-Shenzhen, Shenzhen, China
| | - Jian Wang
- BGI-Shenzhen, Shenzhen, China.,China National GeneBank, BGI-Shenzhen, Shenzhen, China
| | - Huanming Yang
- BGI-Shenzhen, Shenzhen, China.,China National GeneBank, BGI-Shenzhen, Shenzhen, China
| | - Simon Ming-Yuen Lee
- State Key Laboratory of Quality Research in Chinese Medicine and Institute of Chinese Medical Sciences, Macao, China
| | - Xin Liu
- BGI-Qingdao, BGI-Shenzhen, Qingdao, China.,China National GeneBank, BGI-Shenzhen, Shenzhen, China.,BGI-Fuyang, BGI-Shenzhen, Fuyang, China
| | - Quanqi Zhang
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China.,Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Jie Qi
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, China
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16
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Hu H, Xu L, Chen Y, Luo SJ, Wu YZ, Xu SH, Liu MT, Lin F, Mei Y, Yang Q, Qiang YY, Lin YW, Deng YJ, Lin T, Sha YQ, Huang BJ, Zhang SJ. The Upregulation of Trophinin-Associated Protein (TROAP) Predicts a Poor Prognosis in Hepatocellular Carcinoma. J Cancer 2019; 10:957-967. [PMID: 30854102 PMCID: PMC6400818 DOI: 10.7150/jca.26666] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Accepted: 01/04/2019] [Indexed: 12/12/2022] Open
Abstract
Purpose: Trophinin-associated protein (TROAP) is a cytoplasmic protein that plays a significant role in the processes of embryo transplantation and microtubule regulation. However, the relevant survival analysis and cancer progression analysis have not yet been reported. Methods: Eighteen matched pairs of tumor and adjacent non-tumor samples were evaluated to detect the TROAP mRNA level. Immunohistochemistry (IHC) was used to evaluate the TROAP expression in 108 hepatocellular carcinoma patients who underwent surgical resection. Meanwhile, data from the TCGA database was statistically evaluated. Results: In the present study, we detected a significant increase in the TROAP mRNA level in tumor tissues when compared with adjacent non-tumor tissues. Moreover, the upregulation of TROAP was associated with increased serum AFP and GGT; the greater the tumor number was, the larger the tumor size, differentiation grade, and cancer embolus in clinical analysis. In HCC patients, elevated TROAP expression in the primary tumor was positively related to clinical severity, such as poor overall survival and disease-free survival. In addition, both univariate and multivariate survival analysis validated that TROAP expression was a promising independent risk factor for overall survival and disease-free survival in HCC patients. Furthermore, the results derived from the analysis of data from the TCGA database were consistent with previous results. Altogether, our results show that TROAP is a novel crucial regulator of HCC progression and is a potential therapeutic biomarker for HCC patients. Conclusions: Elevated TROAP expression predicted a poor prognosis, and TROAP may serve as a potential biomarker for application in oncotherapy.
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Affiliation(s)
- Hao Hu
- Department of Chinese Medicine, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, Guangdong, P. R. China
| | - Liang Xu
- State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou 510060, P. R. China
| | - Yan Chen
- Department of Chinese Medicine, the Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, Guangdong, P. R. China
| | - Shao-Ju Luo
- Department of Chinese Medicine, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, Guangdong, P. R. China
| | - Ying-Zi Wu
- Department of Chinese Medicine, the Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, Guangdong, P. R. China
| | - Shi-Hua Xu
- Department of Chinese Medicine, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, Guangdong, P. R. China
| | - Meng-Ting Liu
- Department of Chinese Medicine, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, Guangdong, P. R. China
| | - Fen Lin
- State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou 510060, P. R. China
| | - Yan Mei
- State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou 510060, P. R. China
| | - Qin Yang
- State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou 510060, P. R. China
| | - Yuan-Yuan Qiang
- State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou 510060, P. R. China
| | - You-Wu Lin
- Department of Chinese Medicine, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, Guangdong, P. R. China
| | - Yuan-Jiang Deng
- Department of Chinese Medicine, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, Guangdong, P. R. China
| | - Tong Lin
- Department of Chinese Medicine, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, Guangdong, P. R. China
| | - Yong-Qiang Sha
- Department of Chinese Medicine, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, Guangdong, P. R. China
| | - Bi-Jun Huang
- State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou 510060, P. R. China
| | - Shi-Jun Zhang
- Department of Chinese Medicine, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, Guangdong, P. R. China
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17
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Jiao Y, Li Y, Lu Z, Liu Y. High Trophinin-Associated Protein Expression Is an Independent Predictor of Poor Survival in Liver Cancer. Dig Dis Sci 2019; 64:137-143. [PMID: 30284652 DOI: 10.1007/s10620-018-5315-x] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Accepted: 09/29/2018] [Indexed: 12/12/2022]
Abstract
BACKGROUND Trophinin-associated protein (TROAP) is a cytoplasmic protein that functions as an adhesion molecule in processes such as embryo implantation, spindle formation, and cancer. OBJECTIVE To evaluate the relationship of TROAP expression in hepatocellular carcinoma (HCC) tissue with clinicopathologic parameters and survival time in liver cancer patients based on an analysis of The Cancer Genome Atlas Liver Hepatocellular Carcinoma (TCGA-LIHC) data. METHODS RNA-sequencing (RNA-Seq) expression data and clinical information were downloaded for the TCGA-LIHC cohort. Associations between TROAP expression in HCC tissues and clinical parameters were evaluated by Chi-square tests. Differences in survival between high and low expression groups (median expression cutoff) from Cox regression analysis were compared, and P values were calculated by a log-rank test. Kaplan-Meier curves were compared with the log-rank test. RESULTS Analysis of RNA-Seq gene expression data for 373 patients with primary tumors revealed overexpression of TROAP in liver cancer. High TROAP expression was associated with survival status (P = 0.015), T stage (P = 0.049), clinical stage (P = 0.048), and gender (P = 0.033). Patients with high TROAP-expressing liver cancers had a shorter median overall survival of 3.83 years compared with 5.80 years for patients with low TROAP-expressing liver cancers (P = 0.00422). Multivariate analysis identified TROAP expression as an independent prognostic variable for overall survival in liver cancer patients. CONCLUSION TROAP expression is an independent predictor of poor survival in liver cancer.
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Affiliation(s)
- Yan Jiao
- Department of Hepatobiliary and Pancreatic Surgery, The First Hospital of Jilin University, Changchun, 130021, Jilin, People's Republic of China
| | - Yanqing Li
- Department of Pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun, 130021, Jilin, People's Republic of China
| | - Zhengyang Lu
- Department of General Surgery, The Second Hospital of Jilin University, Changchun, 130041, Jilin, People's Republic of China
| | - Yahui Liu
- Department of Hepatobiliary and Pancreatic Surgery, The First Hospital of Jilin University, Changchun, 130021, Jilin, People's Republic of China.
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Gadde R, Cd D, Sheela SR. Placental protein 13: An important biological protein in preeclampsia. J Circ Biomark 2018; 7:1849454418786159. [PMID: 30023011 PMCID: PMC6047241 DOI: 10.1177/1849454418786159] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2017] [Accepted: 05/28/2018] [Indexed: 12/26/2022] Open
Abstract
Placental protein 13 (PP13), a glycan binding protein predominantly expressed in syncytiotrophoblast, dimeric in nature, lacks N-terminal signal peptide, bypasses the endoplasmic reticulum, and secretes into maternal circulation as exosomes or microvesicles. PP13 has jelly roll fold conformation with conserved carbohydrate recognition domain which specifically binds to β-galactosides of the glycan receptors during placentation. PP13 binds to glycosylated receptors on human erythrocytes and brings about hemagglutination by the property of lectin activity; other functions are immunoregulation and vasodilation during placentation and vascularization. The gene LGALS13 located on 19q13.2 comprising four exons expresses a 32-kDa protein with 139 amino acid residues, PP13. Impaired expression due to mutation in the gene leads to a nonfunctional truncated PP13. The low serum levels predict high risk for the onset of preeclampsia or obstetric complications. Hence, PP13 turned to be an early marker for risk assessment of preeclampsia. The recombinant PP13 and monoclonal antibodies availability help for replenishing PP13 in conditions with low serum levels and for detection and prevention of preeclampsia, respectively.
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Affiliation(s)
- Ranjeeta Gadde
- Department of Biochemistry, Sri Devaraj Urs Medical College, Kolar, India
| | - Dayanand Cd
- Department of Biochemistry, Sri Devaraj Urs Medical College, Kolar, India
| | - S R Sheela
- Department of Obstetrics and Gynecology, Sri Devaraj Urs Medical College, Kolar, India
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Jing K, Mao Q, Ma P. Decreased expression of TROAP suppresses cellular proliferation, migration and invasion in gastric cancer. Mol Med Rep 2018; 18:3020-3026. [PMID: 29956806 DOI: 10.3892/mmr.2018.9230] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Accepted: 11/11/2017] [Indexed: 11/06/2022] Open
Abstract
Trophinin associated protein (TROAP) is a cytoplasmic protein required for spindle assembly and cell invasion; however, its biological function in cancer remains to be elucidated. In the present study, by analyzing three independent datasets from the Oncomine database, it was identified that TROAP mRNA expression was upregulated in gastric cancer (GC) tissues compared with normal counterparts. Furthermore, elevated expression of TROAP was associated with poor survival in patients with GC, as predicted using Kaplan‑Meier analysis. TROAP was knocked down to verify its functional role in gastric cancer cell lines, SGC‑7901 and MGC80‑3. MTT assay was used to analyze cell proliferation. Cell cycle progression, and migration and invasion were determined using flow cytometry and Transwell assay, respectively. In vitro experiments demonstrated that knockdown of TROAP significantly suppressed cell proliferation, G1 to S cell cycle transition, and the migration and invasion ability of GC cells. The results of the present study suggest that TROAP is overexpressed in GC and serves an oncogenic role in gastric cancer by affecting cell proliferation and invasion.
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Affiliation(s)
- Ke Jing
- Department of Gastrointestinal Surgery, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Qinsheng Mao
- Department of Gastrointestinal Surgery, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Peng Ma
- Department of Gastrointestinal Surgery, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
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Olczak M, Chutorański D, Kwiatkowska M, Samojłowicz D, Tarka S, Wierzba-Bobrowicz T. Bystin (BYSL) as a possible marker of severe hypoxic-ischemic changes in neuropathological examination of forensic cases. Forensic Sci Med Pathol 2018; 14:26-30. [PMID: 29349722 PMCID: PMC5830468 DOI: 10.1007/s12024-017-9942-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/04/2017] [Indexed: 12/01/2022]
Abstract
Bystin (BYSL) is a 306-amino acid protein encoded in humans by the BYSL gene located on the 6p21.1 chromosome. It is conserved across a wide range of eukaryotes. BYSL was reported to be a sensitive marker for the reactive astrocytes induced by ischemia/reperfusion and chemical hypoxia in vitro and is considered to be one of the common characteristics of astrogliosis. In our study we examined whether BYSL could be used as a marker for hypoxic-ischemic changes in forensic cases. Groups suspected of acute hypoxic-ischemic changes presented strong BYSL expression in the cytoplasm of neocortical neurons especially in layers 3–5, that seemed to be short-lasting. In the hypoxic-ischemic-reperfusion group we did not find BYSL expression. BYSL expression in the cytoplasm of cortical neurons was minimal in the control group (cardiac arrest). BYSL seems to be a promising early marker of severe hypoxic-ischemic changes in neuropathological examination of forensic cases and certainly requires further studies.
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Affiliation(s)
- Mieszko Olczak
- Department of Forensic Medicine, Medical University of Warsaw, 1 Oczki St., 02-007, Warsaw, Poland.
| | - Dominik Chutorański
- Departament of Neuropathology, Institute of Psychiatry and Neurology, 9 Sobieskiego St., 02-957, Warsaw, Poland
| | - Magdalena Kwiatkowska
- Department of Forensic Medicine, Medical University of Warsaw, 1 Oczki St., 02-007, Warsaw, Poland
| | - Dorota Samojłowicz
- Department of Forensic Medicine, Medical University of Warsaw, 1 Oczki St., 02-007, Warsaw, Poland
| | - Sylwia Tarka
- Department of Forensic Medicine, Medical University of Warsaw, 1 Oczki St., 02-007, Warsaw, Poland.,Departament of Neuropathology, Institute of Psychiatry and Neurology, 9 Sobieskiego St., 02-957, Warsaw, Poland
| | - Teresa Wierzba-Bobrowicz
- Departament of Neuropathology, Institute of Psychiatry and Neurology, 9 Sobieskiego St., 02-957, Warsaw, Poland
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Wang ZL, Li B, Luo YX, Lin Q, Liu SR, Zhang XQ, Zhou H, Yang JH, Qu LH. Comprehensive Genomic Characterization of RNA-Binding Proteins across Human Cancers. Cell Rep 2018; 22:286-298. [DOI: 10.1016/j.celrep.2017.12.035] [Citation(s) in RCA: 120] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Revised: 10/25/2017] [Accepted: 12/08/2017] [Indexed: 11/26/2022] Open
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Dolanbay EG, Yardimoglu M, Yalcinkaya E, Yazir Y, Aksoy A, Karaoz E, Caliskan E. Expression of trophinin and dipeptidyl peptidase IV in endometrial co-culture in the presence of an embryo: A comparative immunocytochemical study. Mol Med Rep 2016; 13:3961-8. [PMID: 27035766 DOI: 10.3892/mmr.2016.5020] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Accepted: 02/12/2016] [Indexed: 11/06/2022] Open
Abstract
Recurrent implantation failure leads to a reduced pregnancy rate. The expression patterns of trophinin and dipeptidyl peptidase IV (CD26) indicate the involvement of embryo implantation and early placental development. The purpose of the present study was to evaluate endometrial co‑culture cells in the presence of embryo with trophinin and CD26 immunofluorescence staining. Patients with recurrent implantation failure were enrolled in the present study. The patients were aged between 26 and 36 years. Co‑cultures were prepared from endometrial biopsies for each patient. Controlled ovarian hyperstimulation was performed on each of the patients. Certain embryos were maintained in a conventional culture environment (n=80), and others in an endometrial co‑culture environment (n=25). Following embryo transfer, the co‑culture cells were examined under an inverted wide‑field fluorescence microscope. The ratio of a successful pregnancy was 0.38 in the present study (n=5/13 pregnancies). The average age of the successful group (28±3.54 years) was younger compared with the unsuccessful (32.67±2.81) group (P≤0.05). The number of trophinin (+) endometrial cells in the presence of an embryo was significantly lower (P=0.046) in the successful group on the first day. No significant difference between the groups was observed in terms of the number of CD26 (+) cells on the first to the fourth days (P≤0.05). Trophinin and CD26 immunostaining is important in the early period of pregnancy, and it will be beneficial in terms of providing the deficit of conventional culture medium in performed studies with the endometrial co‑culture medium. The co‑culture may be important, particularly in the early period, in patients with recurrent implantation failure in terms of enabling a connection between the cells belonging to the endometrium and the embryo.
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Affiliation(s)
- Elif Gelenli Dolanbay
- Department of Histology and Embryology, Faculty of Medicine, Kocaeli University, Campus of Umuttepe, Kocaeli 41380, Turkey
| | - Melda Yardimoglu
- Department of Histology and Embryology, Faculty of Medicine, Kocaeli University, Campus of Umuttepe, Kocaeli 41380, Turkey
| | - Ender Yalcinkaya
- Training and Research Hospital, IVF Unit, Faculty of Medicine, Kocaeli University, Campus of Umuttepe, Kocaeli 41380, Turkey
| | - Yusufhan Yazir
- Department of Histology and Embryology, Faculty of Medicine, Kocaeli University, Campus of Umuttepe, Kocaeli 41380, Turkey
| | - Ayca Aksoy
- Center of Stem Cell and Gene Therapies Research and Practice, Kocaeli University, Campus of Umuttepe, Kocaeli 41380, Turkey
| | - Erdal Karaoz
- Center for Regenerative Medicine and Stem Cell Research and Manufacturing (LivMedCell), Liv Hospital, İstanbul 34340, Turkey
| | - Eray Caliskan
- Department of Obstetrics and Gynecology, Faculty of Medicine, Bahçeşehir University, İstanbul 34353, Turkey
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Characterization of the Transcriptional Complexity of the Receptive and Pre-receptive Endometria of Dairy Goats. Sci Rep 2015; 5:14244. [PMID: 26373443 PMCID: PMC4571617 DOI: 10.1038/srep14244] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Accepted: 08/21/2015] [Indexed: 12/18/2022] Open
Abstract
Endometrium receptivity is essential for successful embryo implantation in mammals. However, the lack of genetic information remains an obstacle to understanding the mechanisms underlying the development of a receptive endometrium from the pre-receptive phase in dairy goats. In this study, more than 4 billion high-quality reads were generated and de novo assembled into 102,441 unigenes; these unigenes were annotated using published databases. A total of 3,255 unigenes that were differentially expressed (DEGs) between the PE and RE were discovered in this study (P-values < 0.05). In addition, 76,729–77,102 putative SNPs and 12,837 SSRs were discovered in this study. Bioinformatics analysis of the DEGs revealed a number of biological processes and pathways that are potentially involved in the establishment of the RE, notably including the GO terms proteolysis, apoptosis, and cell adhesion and the KEGG pathways Cell cycle and extracellular matrix (ECM)-receptor interaction. We speculated that ADCY8, VCAN, SPOCK1, THBS1, and THBS2 may play important roles in the development of endometrial receptivity. The de novo assembly provided a good starting point and will serve as a valuable resource for further investigations into endometrium receptivity in dairy goats and future studies on the genomes of goats and other related mammals.
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Zhang S, Lin H, Kong S, Wang S, Wang H, Wang H, Armant DR. Physiological and molecular determinants of embryo implantation. Mol Aspects Med 2013; 34:939-80. [PMID: 23290997 DOI: 10.1016/j.mam.2012.12.011] [Citation(s) in RCA: 346] [Impact Index Per Article: 31.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2012] [Revised: 12/25/2012] [Accepted: 12/26/2012] [Indexed: 01/19/2023]
Abstract
Embryo implantation involves the intimate interaction between an implantation-competent blastocyst and a receptive uterus, which occurs in a limited time period known as the window of implantation. Emerging evidence shows that defects originating during embryo implantation induce ripple effects with adverse consequences on later gestation events, highlighting the significance of this event for pregnancy success. Although a multitude of cellular events and molecular pathways involved in embryo-uterine crosstalk during implantation have been identified through gene expression studies and genetically engineered mouse models, a comprehensive understanding of the nature of embryo implantation is still missing. This review focuses on recent progress with particular attention to physiological and molecular determinants of blastocyst activation, uterine receptivity, blastocyst attachment and uterine decidualization. A better understanding of underlying mechanisms governing embryo implantation should generate new strategies to rectify implantation failure and improve pregnancy rates in women.
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Affiliation(s)
- Shuang Zhang
- State Key Laboratory of Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, PR China; Graduate School of the Chinese Academy of Sciences, Beijing 100039, PR China
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25
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Park SK, Yoon J, Wang L, Shibata TK, Motamedchaboki K, Shim KJ, Chang MS, Lee SH, Tamura N, Hatakeyama S, Nadano D, Sugihara K, Fukuda MN. Enhancement of mouse sperm motility by trophinin-binding peptide. Reprod Biol Endocrinol 2012; 10. [PMID: 23194061 PMCID: PMC3551822 DOI: 10.1186/1477-7827-10-101] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Trophinin is an intrinsic membrane protein that forms a complex in the cytoplasm with bystin and tastin, linking it microtubule-associated motor dynein (ATPase) in some cell types. Previously, we found that human sperm tails contain trophinin, bystin and tastin proteins, and that trophinin-binding GWRQ (glycine, tryptophan, arginine, glutamine) peptide enhanced motility of human sperm. METHODS Immunohistochemistry was employed to determine trophinin protein in mouse spermatozoa from wild type mouse, by using spermatozoa from trophinin null mutant mice as a negative control. Multivalent 8-branched GWRQ (glycine, tryptophan, arginine, glutamine) peptide or GWRQ-MAPS, was chemically synthesized, purified by HPLC and its structure was confirmed by MALDI-TOF mass spectrometry. Effect of GWRQ-MAPS on mouse spermatozoa from wild type and trophinin null mutant was assessed by a computer-assisted semen analyzer (CASA). RESULTS Anti-trophinin antibody stained the principal (central) piece of the tail of wild type mouse sperm, whereas the antibody showed no staining on trophinin null sperm. Phage particles displaying GWRQ bound to the principal piece of sperm tail from wild type but not trophinin null mice. GWRQ-MAPS enhanced motility of spermatozoa from wild type but not trophinin null mice. CASA showed that GWRQ-MAPS enhanced both progressive motility and rapid motility in wild type mouse sperm. CONCLUSIONS Present study established the expression of trophinin in the mouse sperm tail and trophinin-dependent effect of GWRQ-MAPS on sperm motility. GWRQ causes a significant increase in sperm motility.
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Affiliation(s)
- Seong Kyu Park
- Tumor Microenvironment Program, Cancer Center, Sanford-Burnham Medical Research Institute, 10901 North Torrey Pines Rd, La Jolla, CA 92037, USA
- Department of Prescriptionology, College of Oriental Medicine, Kyung Hee University, Seoul, 130-701, Republic of Korea
| | - Jiwon Yoon
- Tumor Microenvironment Program, Cancer Center, Sanford-Burnham Medical Research Institute, 10901 North Torrey Pines Rd, La Jolla, CA 92037, USA
- Department of Prescriptionology, College of Oriental Medicine, Kyung Hee University, Seoul, 130-701, Republic of Korea
| | - Ling Wang
- Tumor Microenvironment Program, Cancer Center, Sanford-Burnham Medical Research Institute, 10901 North Torrey Pines Rd, La Jolla, CA 92037, USA
| | - Toshiaki K Shibata
- Tumor Microenvironment Program, Cancer Center, Sanford-Burnham Medical Research Institute, 10901 North Torrey Pines Rd, La Jolla, CA 92037, USA
- Department of Gynecology and Obstetrics, Hamamatsu University School of Medicine, Hamamatsu City, Shizuoka, 431-3192, Japan
| | - Khatereh Motamedchaboki
- Tumor Microenvironment Program, Cancer Center, Sanford-Burnham Medical Research Institute, 10901 North Torrey Pines Rd, La Jolla, CA 92037, USA
| | - Kyung Jun Shim
- Tumor Microenvironment Program, Cancer Center, Sanford-Burnham Medical Research Institute, 10901 North Torrey Pines Rd, La Jolla, CA 92037, USA
- Department of Prescriptionology, College of Oriental Medicine, Kyung Hee University, Seoul, 130-701, Republic of Korea
| | - Mun Seog Chang
- Department of Prescriptionology, College of Oriental Medicine, Kyung Hee University, Seoul, 130-701, Republic of Korea
| | - Seung Ho Lee
- Tumor Microenvironment Program, Cancer Center, Sanford-Burnham Medical Research Institute, 10901 North Torrey Pines Rd, La Jolla, CA 92037, USA
| | - Naoaki Tamura
- Tumor Microenvironment Program, Cancer Center, Sanford-Burnham Medical Research Institute, 10901 North Torrey Pines Rd, La Jolla, CA 92037, USA
- Department of Gynecology and Obstetrics, Hamamatsu University School of Medicine, Hamamatsu City, Shizuoka, 431-3192, Japan
| | - Shingo Hatakeyama
- Tumor Microenvironment Program, Cancer Center, Sanford-Burnham Medical Research Institute, 10901 North Torrey Pines Rd, La Jolla, CA 92037, USA
- Department of Urology, Hirosaki University School of Medicine, Hirosaki, Aomori, 036-8562, Japan
| | - Daita Nadano
- Department of Applied Molecular Biosciences, Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
| | - Kazuhiro Sugihara
- Department of Gynecology and Obstetrics, Hamamatsu University School of Medicine, Hamamatsu City, Shizuoka, 431-3192, Japan
| | - Michiko N Fukuda
- Tumor Microenvironment Program, Cancer Center, Sanford-Burnham Medical Research Institute, 10901 North Torrey Pines Rd, La Jolla, CA 92037, USA
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Tamura N, Sugihara K, Akama TO, Fukuda MN. Trophinin-mediated cell adhesion induces apoptosis of human endometrial epithelial cells through PKC-δ. Cell Cycle 2011; 10:135-43. [PMID: 21191175 DOI: 10.4161/cc.10.1.14448] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Trophinin is an intrinsic membrane protein expressed in trophectoderm cells of embryos and in uterine epithelial cells. Trophinin potentially mediates apical cell adhesion at human embryo implantation sites through trophinin-trophinin binding in these two cell types. Trophinin-mediated cell adhesion activates trophectoderm cells for invasion, whereas the effect of adhesion on maternal side is not known. We show that addition of GWRQ peptide, a previously established peptide that mimics trophinin-mediated cell adhesion, to human endometrial epithelial cells expressing trophinin induces their apoptosis. FAS involvement was excluded, as GWRQ did not bind to FAS, and FAS knockdown did not alter GWRQ-induced apoptosis. Immunoblotting analyses of protein kinases revealed an elevation of PKC-d protein in GWRQ-bound endometrial epithelial cells. In the absence of GWRQ, PKC-d associated with trophinin and remained cytoplasmic, but after GWRQ binding to the trophinin extracellular domain, PKC-d became tyrosine phosphorylated, dissociated from trophinin, and entered the nucleus. In PKC-d knockdown endometrial cells, GWRQ did not induce apoptosis.
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Affiliation(s)
- Naoaki Tamura
- Tumor Microenvironment Program, Cancer Center, Sanford-Burnham Medical Research Institute, La Jolla, CA, USA
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Carron C, O'Donohue MF, Choesmel V, Faubladier M, Gleizes PE. Analysis of two human pre-ribosomal factors, bystin and hTsr1, highlights differences in evolution of ribosome biogenesis between yeast and mammals. Nucleic Acids Res 2010; 39:280-91. [PMID: 20805244 PMCID: PMC3017594 DOI: 10.1093/nar/gkq734] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Recent studies reveal that maturation of the 40S ribosomal subunit precursors in mammals includes an additional step during processing of the internal transcribed spacer 1 (ITS1), when compared with yeast Saccharomyces cerevisiae, even though the protein content of the pre-40S particle appears to be the same. Here, we examine by depletion with siRNA treatment the function of human orthologs of two essential yeast pre-ribosomal factors, hEnp1/bystin and hTsr1. Like their yeast orthologs, bystin is required for efficient cleavage of the ITS1 and further processing of this domain within the pre-40S particles, whereas hTsr1 is necessary for the final maturation steps. However, bystin depletion leads to accumulation of an unusual 18S rRNA precursor, revealing a new step in ITS1 processing that potentially involves an exonuclease. In addition, pre-40S particles lacking hTsr1 are partially retained in the nucleus, whereas depletion of Tsr1p in yeast results in strong cytoplasmic accumulation of pre-40S particles. These data indicate that ITS1 processing in human cells may be more complex than currently envisioned and that coordination between maturation and nuclear export of pre-40S particles has evolved differently in yeast and mammalian cells.
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Affiliation(s)
- Coralie Carron
- Université de Toulouse, UPS, Laboratoire de Biologie Moléculaire Eucaryote and CNRS, LBME, F-31000 Toulouse, France
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Du F, Qian ZM, Zhu L, Wu XM, Qian C, Chan R, Ke Y. Purity, cell viability, expression of GFAP and bystin in astrocytes cultured by different procedures. J Cell Biochem 2010; 109:30-7. [PMID: 19899109 DOI: 10.1002/jcb.22375] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Primary astrocyte cultures are the most commonly used in vitro model for neurobiological studies. We speculated that different protocols might induce differences not only in the percentage of astrocytes but also in their biological characteristics. In this study, we investigated the effects of four major protocols on the purity of astrocytes, cell viability, expression of glial fibrillary acidic protein (GFAP) and bystin of cultured astrocytes using MTT assay, immunocytochemical staining, and Western blot analysis. We demonstrated that the purity of astrocytes (98.9%) generated by the subculture (SC) procedure is significantly higher than those generated by primary culture (PC), shaken once culture (SK-1) or shaken twice culture (SK-2). We also showed that expressions of GFAP and bystin in astrocytes that are purified by the SK-2 or SK-1 procedures are significantly higher than those in astrocytes prepared by PC or SC. In addition, astrocytes cultured by SK-2 or SK-1 have a higher level of cell viabilities at most time points after ischemia compared with astrocytes cultured by PC or SC. These suggested that physical stimulation induced by "shaken" or culture operation might be able to activate astrocytes and implied that different procedures induce differences not only in the purity but also in the biological characteristics of astrocytes, such as the percentage of activated astrocytes, GFAP, and bystin expressions and responses to ischemia. A more detailed analysis about the effect of "culture protocol factor" on the biological characteristics of astrocytes is absolutely needed.
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Affiliation(s)
- Fang Du
- Jiangsu Key Laboratory of Neuroregeneration, Department of Neurochemistry, Nantong University, Nantong 226001, PR China
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Bystin-like protein is upregulated in hepatocellular carcinoma and required for nucleologenesis in cancer cell proliferation. Cell Res 2009; 19:1150-64. [PMID: 19687802 DOI: 10.1038/cr.2009.99] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
The bystin-like (BYSL) gene was previously characterized to encode an accessory protein for cell adhesion that participates in early embryo implantation. It is also involved in 40S ribosomal subunit biogenesis and is found to be expressed in rapidly growing embryo and cancer cell lines. In order to explore the role of BYSL in cancer cell proliferation and growth, we used hepatocellular carcinoma (HCC) as a model. Here, we report that BYSL is crucial for HCC cell growth both in vitro and in vivo. Expression levels of BYSL mRNA and protein in human HCC specimens were markedly increased compared with those seen in adjacent non-cancerous tissue. In vitro, inhibition of BYSL by short hairpin RNA decreased HCC cell proliferation, induced apoptosis and partially arrested the cell cycle in the G2/M phase. In vivo, HCC cells treated with BYSL siRNA failed to form tumors in nude mice after subcutaneous implantation. To determine the cellular basis for BYSL RNAi-induced cell growth arrest, BYSL subcellular localization in mitotic and interphase HepG2 cells was examined. BYSL was present at multiple stages during nucleologenesis, including in nucleolus-derived foci (NDF), perichromosomal regions and the prenucleolar body (PNB) during mitosis. BYSL depletion remarkably suppressed NDF and PNB formation, and disrupted nucleoli assembly after mitosis, resulting in increased apoptosis and reduced tolerance of HCC cells to serum starvation. Taken together, our studies indicate that upregulated BYSL expression plays a role in hepatocarcinogenesis.
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Fang D, Li Z, Zhong-ming Q, Mei WX, Ho YW, Yuan XW, Ya K. Expression of bystin in reactive astrocytes induced by ischemia/reperfusion and chemical hypoxia in vitro. Biochim Biophys Acta Mol Basis Dis 2008; 1782:658-63. [DOI: 10.1016/j.bbadis.2008.09.007] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2008] [Revised: 09/01/2008] [Accepted: 09/16/2008] [Indexed: 11/28/2022]
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Enhanced expression of trophinin promotes invasive and metastatic potential of human gallbladder cancer cells. J Cancer Res Clin Oncol 2008; 135:581-90. [PMID: 18846386 DOI: 10.1007/s00432-008-0492-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2007] [Accepted: 09/21/2008] [Indexed: 10/21/2022]
Abstract
PURPOSE To study effects of trophinin on the metastatic potential of human gallbladder cancer cells and its potential mechanism. MATERIALS AND METHODS Expression of trophinin in the highly metastatic GBC-SDH(i) cells was investigated by real time RT-PCR and western blot. Recombinant expression plasmid vector of the human trophinin gene was constructed and transfected into GBC-SD cells. Effects of trophinin on the invasion of GBC-SD cells were investigated by adhesion assay and invasion assay in vitro. The siRNA was used to down-regulate the expression of trophinin. Some genes related to the invasion and metastasis of cancer were determined by real time RT-PCR and western blot. The pulmonary metastasis regulated by trophinin was determined in the nude mice. RESULTS Overexpression of trophinin in GBC-SDH(i) cells was confirmed compared with its parental counterparts. Up-regulation of trophinin enhanced the in vitro invasion in the GBC-SD/TRO cells. The enhancement was associated with increasing integrin alpha3, MMP-7, MMP-9, and Ets-1 expression. The results were further demonstrated by RNA interference experiment in vitro. In in vivo study, we also demonstrated that trophinin-transfected gallbladder cancer cells had more pulmonary metastases than the vector-transfected one or its parental counterparts. CONCLUSION Overexpression of trophinin leads to a more invasive phenotype and metastatic potential in human gallbladder cancer, at least in part, through regulating integrin alpha3, MMP-7, MMP-9, and Ets-1 expression.
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Fukuda MN, Sugihara K. An integrated view of L-selectin and trophinin function in human embryo implantation. J Obstet Gynaecol Res 2008; 34:129-36. [PMID: 18412772 DOI: 10.1111/j.1447-0756.2008.00776.x] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Determining molecular mechanisms of human embryo implantation is an extremely challenging task due to the limitation of materials and significant differences underlying this process among mammalian species. Recently, L-selectin and its ligand carbohydrate have been proposed as a system that mediates initial adhesion of human blastocysts to the uterine epithelia. We have also identified trophinin as a unique apical cell adhesion molecule potentially involved in the initial adhesion of trophectoderm of the human blastocyst to endometrial surface epithelia. In the mouse, the binding between ErbB4 on the blastocyst and heparin-binding epidermal growth factor-like growth factor on the endometrial surface enables the initial step of the blastocyst implantation. The evidence suggests that L-selectin and trophinin are included in human embryo implantation. This review summarizes findings relevant to the functions of L-selectin and trophinin in human embryo implantation, and proposes a model that reconciles these cell adhesion mechanisms.
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Affiliation(s)
- Michiko N Fukuda
- Glycobiology Unit, Tumor Microenvironment Program, NCI Cancer Center, Burnham Institute for Medical Research, La Jolla, California 92037, USA.
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33
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Enhancement of Human Sperm Motility by Trophinin Binding Peptide. J Urol 2008; 180:767-71. [DOI: 10.1016/j.juro.2008.03.185] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2007] [Indexed: 11/18/2022]
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34
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Aoyama J, Akazawa Y, Kasahara K, Higashiyama Y, Kikuchi I, Fukumoto Y, Saburi S, Nakayama Y, Fukuda MN, Yamaguchi N. Nuclear localization of magphinins, alternative splicing products of the human trophinin gene. J Cell Biochem 2008; 103:765-77. [PMID: 17559068 DOI: 10.1002/jcb.21446] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Human magphinin proteins are translation products of differentially spliced transcripts from the 5' region of the human trophinin gene (TRO), whose 3' region encodes trophinin, a unique cell adhesion molecule involved in human embryo implantation. Magphinins belong to the MAGE (melanoma-associated antigen) family, and a previous study of mouse magphinins showed their expression in male and female germ cells, suggesting a role in germ cell development. Here, we characterized the structure and subcellular localization of human magphinins. Confocal microscopy analysis of ectopically expressed magphinins revealed that magphinin-alpha and -beta localize in the cytoplasm, whereas magphinin-gamma lacking the peptide encoded by exon-3 is nuclear. Following Triton X-100 extraction, DNA digestion, and high salt extraction magphinin-gamma remained nuclear, suggesting strong association with the nuclear matrix. A series of magphinin-gamma deletion mutants were generated and assayed for localization, which showed that the N-terminal region of the MAGE homology domain is necessary for nuclear localization. When magphinin-gamma was expressed in NIH3T3 cells, cells underwent G1 arrest. These results suggest that human magphinin-gamma inhibits cell cycle progression through nuclear activity.
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Affiliation(s)
- Junya Aoyama
- Department of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba 260-8675, Japan
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35
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Abstract
Human bystin was identified as a cytoplasmic protein directly binding to trophinin, a cell adhesion molecule potentially involved in human embryo implantation. Although the trophinin gene is unique to mammals, the bystin gene (BYSL) is conserved across eukaryotes. Recent studies show that bystin plays a key role during the transition from silent trophectoderm to an active trophoblast upon trophinin-mediated cell adhesion. Bystin gene knockout and knockdown experiments demonstrate that bystin is essential for embryonic stem cell survival and trophectoderm development in the mouse. Furthermore, biochemical analysis of bystin in human cancer cells and mouse embryos indicates a function in ribosomal biogenesis, specifically in processing of 18S RNA in the 40S subunit. Strong evidence that BYSL is a target of c-MYC is consistent with a role for bystin in rapid protein synthesis, which is required for actively growing cells.
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36
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Kimber SJ. Blastocyst implantation:the adhesion cascade. REPRODUCTIVE MEDICINE AND ASSISTED REPRODUCTIVE TECHNIQUES 2008. [DOI: 10.3109/9780203091500.022] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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37
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Galamb O, Sipos F, Dinya E, Spisák S, Somorácz A, Molnár B, Tulassay Z. [Functional mRNA expression analysis and classification of colonic biopsy samples using overall cDNA microarray technique]. Orv Hetil 2008; 149:219-32. [PMID: 18218589 DOI: 10.1556/oh.2008.28056] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND Overall mRNA expression analysis of colon biopsies can contribute to the understanding of molecular background of the local alterations and gene ontology-based functional classification of colonic biopsies into inflammatory and neoplastic diseases. METHODS Total RNA was extracted from frozen biopsies and amplified by T7-method. Expression profile was evaluated by Atlas Glass 1K microarrays. After microarray quality control, applicable data were available from 10 adenomas, 6 colorectal adenocarcinoma (CRC), and inflammatory bowel diseases (IBDs: 3-3 CD and UC). Multivariate statistical and cell functional analyses were performed. Real-time RT-PCR and immunohistochemistry were used for validation. RESULTS Discriminant analysis of selected genes could correctly reclassify all 22 samples using 4 parameters (heat shock transcription factor-1, bystin-like, calgranulin-A, TRAIL receptor 3). IBD samples were characterized by overregulated chemokine (C-X-C motif) ligand 13, replication protein A1, E74-like factor 2 and downregulated TNF receptor-associated factor 6, BCL2-interacting killer genes. In adenomas upregulation of TNF receptor-associated factor 6, replication protein A1, E74-like factor 2 and underexpression of BCL2-associated X protein, calgranulin-A genes were found. CRC cases had significantly increased epidermal growth factor receptor, topoisomerase-1, v-jun, TNF receptor-associated factor 6 and TRAIL receptor 3, and decreased RAD51 and RAD52 DNA repair gene, protein phosphatase-2A and BCL2-interacting killer mRNA levels. Epidermal growth factor receptor RT-PCR and immunohistochemistry, topoisomerase-1 RT-PCR confirmed the chip results. CONCLUSIONS Different histological alterations can be objectively classified by functional, multivariate analysis using cDNA microarrays. Disease-specific gene expression patterns can assist to avoid the intermediate and nondescript cases in diagnostics, which do not belong to any of the conventional diagnostic groups.
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Affiliation(s)
- Orsolya Galamb
- Semmelweis Egyetem, Altalános Orvostudományi Kar II. Belgyógyászati Klinika Budapest.
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38
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Yang S, Liu X, Yin Y, Fukuda MN, Zhou J. Tastin is required for bipolar spindle assembly and centrosome integrity during mitosis. FASEB J 2008; 22:1960-72. [PMID: 18218922 DOI: 10.1096/fj.07-081463] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Tastin was previously characterized as an accessory protein for cell adhesion that participates in early embryo implantation. Here, we report that tastin is also required for spindle assembly during mitosis. Tastin protein levels peaked in the G(2)/M phase and abruptly declined after cell division. Microscopy showed that tastin is primarily localized on the microtubules, centrosomes, and the mitotic spindle during the cell cycle. Tastin interacted with the dynein intermediate chain, p150(Glued), and gamma-tubulin in addition to Tctex-1 (the light chain of dynein). Overexpression of tastin led to monopolar spindle formation, whereas loss of tastin expression caused profound mitotic block and preferentially induced multipolar spindles. These multipolar spindles were generated through a loss of cohesion in mitotic centrosomes; specifically, tastin depletion caused the fragmentation of pericentrosomal material and the splitting of the centrioles at the spindle poles. Tastin depletion induced centrosome abnormalities exclusively during mitosis and required both microtubule integrity and Eg5 activity. However, tastin depletion did not disrupt the organization of spindle poles, as revealed by localization of nuclear mitotic apparatus protein (NuMA) and the p150(Glued) component of dynactin. These data indicate that the major function of tastin during mitosis is to maintain the structural and dynamic features of centrosomes, thereby contributing to spindle bipolarity.
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Affiliation(s)
- Shuo Yang
- Laboratory of Molecular Cell Biology, Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai, China
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39
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Harada O, Suga T, Suzuki T, Nakamoto K, Kobayashi M, Nomiyama T, Nadano D, Ohyama C, Fukuda MN, Nakayama J. The role of trophinin, an adhesion molecule unique to human trophoblasts, in progression of colorectal cancer. Int J Cancer 2007; 121:1072-8. [PMID: 17487845 DOI: 10.1002/ijc.22821] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Trophinin is a unique adhesion molecule expressed by human trophoblastic cells. Its activity and in vivo expression pattern implicate trophinin in the initial attachment of trophectoderm cells to maternal epithelia. Subsequent to apical adhesion, trophoblasts aggressively invade maternal tissue to form the placenta, a process resembling tumor invasion. Here, we report that trophinin is expressed in tumors from 64% of colon cancer patients (n = 50) and high trophinin expression is closely associated with poor prognosis. To determine the link between trophinin expression and malignancy, colon adenocarcinoma SW480 cells were stably transfected with trophinin. An invasion assay showed that trophinin-expressing SW480 cells were more invasive than mock-transfected cells. Microarray analysis comparing SW480 cells transfected with trophinin with mock-transfected cells identified high-mobility group box 1 (HMGB1) as the most significantly elevated transcript. Immunohistochemical analysis of tumors from the colorectal cancer patients confirmed positive correlation of HMGB1 protein expression in the nucleus to trophinin expression in tumor. HMGB1 and its ligand RAGE (the receptor for advanced glycation end product) proteins were coexpressed in 65.6% of trophinin-positive patients (n = 32). These results suggest that trophinin promotes invasion through a mechanism involving HMGB1/RAGE.
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Affiliation(s)
- Oi Harada
- Department of Pathology, Shinshu University School of Medicine, Matsumoto, Japan
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40
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Miyoshi M, Okajima T, Matsuda T, Fukuda M, Nadano D. Bystin in human cancer cells: intracellular localization and function in ribosome biogenesis. Biochem J 2007; 404:373-81. [PMID: 17381424 PMCID: PMC1896285 DOI: 10.1042/bj20061597] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Although bystin has been identified as a protein potentially involved in embryo implantation (a process unique to mammals) in humans, the bystin gene is evolutionarily conserved from yeast to humans. DNA microarray data indicates that bystin is overexpressed in human cancers, suggesting that it promotes cell growth. We undertook RT (reverse transcription)-PCR and immunoblotting, and confirmed that bystin mRNA and protein respectively are expressed in human cancer cell lines, including HeLa. Subcellular fractionation identified bystin protein as nuclear and cytoplasmic, and immunofluorescence showed that nuclear bystin localizes mainly in the nucleolus. Sucrose gradient ultracentrifugation of total cytoplasmic ribosomes revealed preferential association of bystin with the 40S subunit fractions. To analyse its function, bystin expression in cells was suppressed by RNAi (RNA interference). Pulse-chase analysis of ribosomal RNA processing suggested that bystin knockdown delays processing of 18S ribosomal RNA, a component of the 40S subunit. Furthermore, this knockdown significantly inhibited cell proliferation. Our findings suggest that bystin may promote cell proliferation by facilitating ribosome biogenesis, specifically in the production of the 40S subunit. Localization of bystin to the nucleolus, the site of ribosome biogenesis, was blocked by low concentrations of actinomycin D, a reagent that causes nucleolar stress. When bystin was transiently overexpressed in HeLa cells subjected to nucleolar stress, nuclear bystin was included in particles different from the nuclear stress granules induced by heat shock. In contrast, cytoplasmic bystin was barely affected by nucleolar stress. These results suggest that, while bystin may play multiple roles in mammalian cells, a conserved function is to facilitate ribosome biogenesis required for cell growth.
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Affiliation(s)
- Masaya Miyoshi
- *Department of Applied Molecular Biosciences, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya 464-8601, Japan
| | - Tetsuya Okajima
- *Department of Applied Molecular Biosciences, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya 464-8601, Japan
| | - Tsukasa Matsuda
- *Department of Applied Molecular Biosciences, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya 464-8601, Japan
| | - Michiko N. Fukuda
- †Burnham Institute for Medical Research, North Torrey Pines Road, La Jolla, CA 92037, U.S.A
| | - Daita Nadano
- *Department of Applied Molecular Biosciences, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya 464-8601, Japan
- To whom correspondence should be addressed (email )
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41
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Adachi K, Soeta-Saneyoshi C, Sagara H, Iwakura Y. Crucial role of Bysl in mammalian preimplantation development as an integral factor for 40S ribosome biogenesis. Mol Cell Biol 2007; 27:2202-14. [PMID: 17242206 PMCID: PMC1820511 DOI: 10.1128/mcb.01908-06] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2006] [Revised: 11/15/2006] [Accepted: 01/04/2007] [Indexed: 02/03/2023] Open
Abstract
Blastocyst formation during mammalian preimplantation development is a unique developmental process that involves lineage segregation between the inner cell mass and the trophectoderm. To elucidate the molecular mechanisms underlying blastocyst formation, we have functionally screened a subset of preimplantation embryo-associated transcripts by using small interfering RNA (siRNA) and identified Bysl (bystin-like) as an essential gene for this process. The development of embryos injected with Bysl siRNA was arrested just prior to blastocyst formation, resulting in a defect in trophectoderm differentiation. Silencing of Bysl by using an episomal short hairpin RNA expression vector inhibited proliferation of embryonic stem cells. Exogenously expressed Bysl tagged with a fluorescent protein was concentrated in the nucleolus with a diffuse nucleoplasmic distribution. Furthermore, the loss of Bysl function by using RNA interference or dominant negative mutants caused defects in 40S ribosomal subunit biogenesis. These findings provide evidence for a crucial role of Bysl as an integral factor for ribosome biogenesis and suggest a critical dependence of blastocyst formation on active translation machinery.
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Affiliation(s)
- Kenjiro Adachi
- Institute of Medical Science, University of Tokyo, Minato-ku, Toyko 108-8639, Japan
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42
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Sugihara K, Sugiyama D, Byrne J, Wolf DP, Lowitz KP, Kobayashi Y, Kabir-Salmani M, Nadano D, Aoki D, Nozawa S, Nakayama J, Mustelin T, Ruoslahti E, Yamaguchi N, Fukuda MN. Trophoblast cell activation by trophinin ligation is implicated in human embryo implantation. Proc Natl Acad Sci U S A 2007; 104:3799-804. [PMID: 17360433 PMCID: PMC1805454 DOI: 10.1073/pnas.0611516104] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
During human embryo implantation, trophectoderm mediates adhesion of the blastocyst to the uterine epithelium. The rapid growth of the embryo and invasion of the maternal tissue suggest adhesion-induced activation of the embryonal cells. We show here that ligation of trophinin, a homophilic cell adhesion molecule expressed on trophoblastic cells, induces tyrosine phosphorylation in trophinin-expressing trophoblastic HT-H cells. The phosphorylation could be induced in HT-H cells with the binding of trophinin-expressing cells or anti trophinin antibodies. Trophinin-dependent tyrosine phosphorylation was associated with actin reorganization. We also isolated trophinin-binding peptides from phage libraries. These peptides exhibited the consensus sequence GWRQ and seemed to reproduce the effects of trophinin-mediated cell adhesion. Upon binding of a GWRQ peptide, HT-H cells became highly proliferative and motile. HT-H cells expressed ErbB family receptors and bound EGF and heparin-binding EGF-like growth factor (HB-EGF), but ErbB family receptor phosphorylation in these cells required GWRQ. In the absence of GWRQ, trophinin interacted with the cytoplasmic protein bystin, which binds to ErbB4 and blocks its autophosphorylation. In HT-H cells, GWRQ peptide dissociated trophinin from bystin, and ErbB4 was activated. Culturing monkey blastocysts in the presence of the peptide increased total number and motility of the trophectoderm cells. These results suggest that trophinin-mediated cell adhesion functions as a molecular switch for trophectoderm activation in human embryo implantation.
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Affiliation(s)
- Kazuhiro Sugihara
- *Cancer Research Center and
- Department of Gynecology and Obstetrics, Kyorin University School of Medicine, Tokyo 181-8611, Japan
- Department of Gynecology and Obstetrics, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Daijiro Sugiyama
- *Cancer Research Center and
- Department of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba 260-8675, Japan
| | - James Byrne
- Division of Reproductive Sciences, Oregon National Primate Research Center, Beaverton, OR 97006
| | - Don P. Wolf
- Division of Reproductive Sciences, Oregon National Primate Research Center, Beaverton, OR 97006
| | | | | | - Maryam Kabir-Salmani
- Department of Gynecology and Obstetrics, Kyorin University School of Medicine, Tokyo 181-8611, Japan
| | - Daita Nadano
- *Cancer Research Center and
- Department of Applied Molecular Biosciences, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya 464-8601, Japan
| | - Daisuke Aoki
- Department of Gynecology and Obstetrics, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Shiro Nozawa
- Department of Gynecology and Obstetrics, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Jun Nakayama
- **Department of Pathology, Shinshu University School of Medicine, Matsumoto 390-8621, Japan; and
| | - Tomas Mustelin
- Inflammation and Infectious Disease Center, Burnham Institute for Medical Research, 10901 North Torrey Pines Road, La Jolla, CA 92037
| | - Erkki Ruoslahti
- Burnham Institute for Medical Research, 1105 Life Sciences Technology Building, University of California, Santa Barbara, CA 93106
| | - Naoto Yamaguchi
- Department of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba 260-8675, Japan
| | - Michiko N. Fukuda
- *Cancer Research Center and
- To whom correspondence should be sent. E-mail:
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43
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Galamb O, Sipos F, Dinya E, Spisak S, Tulassay Z, Molnar B. mRNA expression, functional profiling and multivariate classification of colon biopsy specimen by cDNA overall glass microarray. World J Gastroenterol 2006; 12:6998-7006. [PMID: 17109495 PMCID: PMC4087344 DOI: 10.3748/wjg.v12.i43.6998] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM To understand the local pathophysiological alterations and gene ontology-based functional classification of colonic biopsies into inflammatory and neoplastic diseases. METHODS Total RNA was extracted from frozen biopsies and amplified by T7-method. Expression profile was evaluated by Atlas Glass 1K microarrays. After microarray quality control, applicable data were available from 10 adenomas, 6 colorectal adenocarcinomas (CRCs), and 6 inflammatory bowel diseases (IBDs). Multivariate statistical and cell functional analyses were performed. Real-time RT-PCR and immunohistochemistry were used for validation. RESULTS Discriminant analysis of selected genes, could correctly reclassify all 22 samples using 4 parameters (heat shock transcription factor-1, bystin-like, calgranulin-A, TRAIL receptor 3). IBD samples were characterized by overregulated chemokine (C-X-C motif) ligand 13, replication protein A1, E74-like factor 2 and downregulated TNF receptor-associated factor 6, BCL2-interacting killer genes. In adenomas upregulation of TNF receptor-associated factor 6, replication protein A1, E74-like factor 2 and underexpression of BCL2-associated X protein, calgranulin-A genes were found. CRC cases had significantly increased epidermal growth factor receptor, topoisomerase-1, v-jun, TNF receptor-associated factor 6 and TRAIL receptor 3, and decreased RAD51 and RAD52 DNA repair gene, protein phosphatase-2A and BCL2-interacting killer mRNA levels. Epidermal growth factor receptor RT-PCR and immunohistochemistry, topoisomerase-1 RT-PCR confirmed the chip results. CONCLUSION Different histological alterations can be reclassified by functional, multivariate analysis using cDNA microarrays. Further studies with expanded sample number are needed for subclassification of pathological alterations.
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Affiliation(s)
- Orsolya Galamb
- 2nd Department of Internal Medicine, University Semmelweis, Budapest, Hungary.
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44
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Aoki R, Suzuki N, Paria BC, Sugihara K, Akama TO, Raab G, Miyoshi M, Nadano D, Fukuda MN. The Bysl gene product, bystin, is essential for survival of mouse embryos. FEBS Lett 2006; 580:6062-8. [PMID: 17055491 PMCID: PMC1764500 DOI: 10.1016/j.febslet.2006.09.072] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2006] [Accepted: 09/29/2006] [Indexed: 11/17/2022]
Abstract
Human bystin is a cytoplasmic protein directly binding to trophinin, a cell adhesion molecule potentially involved in human embryo implantation. The present study shows that bystin is expressed in luminal and glandular epithelia in the mouse uterus at peri-implantation stages. In fertilized embryos, bystin was not seen until blastocyst stage. Bystin expression started during hatching and increased in expanded blastocyst. However, bystin apparently disappeared from the blastocyst during implantation. After implantation bystin re-appeared in the epiblast. Targeted disruption of the mouse bystin gene, Bysl, resulted in embryonic lethality shortly after implantation, indicating that bystin is essential for survival of mouse embryos.
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Affiliation(s)
- Rui Aoki
- Cancer Research Center, Burnham Institute for Medical Research, La Jolla, CA, USA
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45
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Ma L, Yin M, Wu X, Wu C, Yang S, Sheng J, Ni H, Fukuda MN, Zhou J. Expression of trophinin and bystin identifies distinct cell types in the germinal zones of adult rat brain. Eur J Neurosci 2006; 23:2265-76. [PMID: 16706835 DOI: 10.1111/j.1460-9568.2006.04782.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
In the adult brain, the subventricular zone (SVZ) is one of the regions where active neurogenesis occurs. Relatively few specific markers are available to distinguish different types of cells in the SVZ and rostral migratory stream (RMS) of adult brain. Here, we showed that trophinin and bystin, both of which are required for early embryo implantation during development, were expressed in the SVZ and RMS of the adult rat brain, but not in the brain of embryos and early postnatal animals. Trophinin-expressing cells were immunopositive for both Ki-67 and nestin in the SVZ. Some of the trophinin-positive cells did not express either the type A cell marker polysialylated weakly adhesive form of the neural cell adhesion molecule (PSA-NCAM) or the type B cell marker glial fibrillary acidic protein (GFAP). Double-label immunohistochemistry revealed that bystin-positive cells co-expressed GFAP, Ki-67 and nestin, but not PSA-NCAM, suggesting that they are likely type B cells. Intracerebroventricular infusion of cytosine-beta-d-arabiofuranoside (Ara-C) eliminated trophinin-positive cells in the SVZ. Following its depletion, however, the remaining bystin-positive cells continued to divide and generate actively dividing trophinin-positive cells that were negative for PSA-NCAM, leading to reconstruction of SVZ network. These characteristics indicate that this subset of trophinin-positive cells in the SVZ is type C cells. Conversely in the RMS, trophinin co-localized with nestin and PSA-NCAM, suggesting that it is expressed in neuroblasts. Cultured neural precursor cells derived from the adult SVZ also expressed both trophinin and bystin. These findings provide insight into the molecular basis of adult neurogenesis in the SVZ and RMS.
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Affiliation(s)
- Liping Ma
- Institute of Biochemistry and Cell Biology, Shanghai Institute for Biological Sciences, Shanghai, 200031, China
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46
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Ayala GE, Dai H, Li R, Ittmann M, Thompson TC, Rowley D, Wheeler TM. Bystin in perineural invasion of prostate cancer. Prostate 2006; 66:266-72. [PMID: 16245277 DOI: 10.1002/pros.20323] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND Bystin, Trophinin, and Tastin are component proteins of an adhesion molecule complex that plays a crucial role in the initial attachment of the embryo to the uterus. METHODS Profiling of genes differentially expressed in the perineural invasion (PNI) in vitro model by gene microarray analysis showed overexpression of bystin in prostate cancer cells co-cultured with nerves. Validation was performed at the RNA levels using quantitative PCR. RESULTS Bystin is overexpressed in cells co-cultured with nerves. Bystin is also present in human prostatic carcinoma (PCa) cells in PNI location in increasing gradient. Bystin is present in the supernatant of the PNI co-culture. CONCLUSIONS Their adhesive and invasive functions in the trophoblast suggest that they might also play a role in perineural adhesion. Bystin is, therefore, an important therapeutic target for neurotropic cancers.
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Affiliation(s)
- Gustavo E Ayala
- Department of Pathology, Baylor College of Medicine, Houston, Texas 77030, USA.
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47
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Kasugai Y, Tagawa H, Kameoka Y, Morishima Y, Nakamura S, Seto M. Identification ofCCND3andBYSLas Candidate Targets for the 6p21 Amplification in Diffuse Large B-Cell Lymphoma. Clin Cancer Res 2005; 11:8265-72. [PMID: 16322284 DOI: 10.1158/1078-0432.ccr-05-1028] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE Increases in gene dosage through DNA amplification represents a common feature of many tumors and can result in the up-regulation of tumor-promoting genes. Our recent genome-wide, array-based comparative genomic hybridization analysis of 66 cases of diffuse large B-cell lymphoma found that genomic gain of 6p21 was observed in as many as 17 cases, including 14 cases with low-level copy number gain and three cases with high-level copy number gains (amplifications). EXPERIMENTAL DESIGN AND RESULTS To identify the target gene(s) for 6p21 amplification, we constructed a detailed amplicon map at the region of genomic amplification with the aid of high-resolution contig array-based comparative genomic hybridization glass slides, consisting of contiguously ordered bacterial artificial chromosome/P1-derived artificial chromosome clones covering 3 Mb throughout the 6p21 amplification region. Alignment of the amplifications identified a minimally overlapping 800 kb segment containing 15 genes. Quantitative expression analysis of the genes from both patient samples and the SUDHL9 cell line revealed that CCND3 and BYSL (1.9 kb telomeric to the CCND3 gene locus) are the targets of 6p21 genomic gain/amplification. CONCLUSIONS Although it is known that t(6;14)(p21;q32) induces aberrant overexpression of CCND3 in B-cell malignancies, we were able to show that CCND3, which encodes the cyclin D family member protein that controls the G1-S phase of cell cycle regulation, can also be a target of genomic gain/amplification. Overexpression of CCND3 through genomic amplification is likely to lead to aberrant cell cycle control, although the precise biological role of BYSL with respect to tumorigenesis remains to be determined.
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MESH Headings
- Blotting, Northern
- Blotting, Southern
- Cell Adhesion Molecules/genetics
- Chromosome Mapping
- Chromosomes, Artificial, Bacterial
- Chromosomes, Human, Pair 6/genetics
- Cyclin D3
- Cyclins/genetics
- DNA, Neoplasm/genetics
- Gene Amplification
- Humans
- In Situ Hybridization, Fluorescence
- Lymphoma, B-Cell/genetics
- Lymphoma, Large B-Cell, Diffuse/genetics
- Nucleic Acid Hybridization
- Oligonucleotide Array Sequence Analysis
- RNA, Neoplasm/genetics
- Reverse Transcriptase Polymerase Chain Reaction
- Tumor Cells, Cultured
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Affiliation(s)
- Yumiko Kasugai
- Division of Molecular Medicine, Aichi Cancer Center Research Institute, Department of Hematology and Cell Therapy, Aichi Cancer Center Hospital, Aichi, Japan
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Aoyama J, Nakayama Y, Sugiyama D, Saburi S, Nadano D, Fukuda MN, Yamaguchi N. Apical cell adhesion molecule, trophinin, localizes to the nuclear envelope. FEBS Lett 2005; 579:6326-32. [PMID: 16288751 DOI: 10.1016/j.febslet.2005.10.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2005] [Revised: 10/04/2005] [Accepted: 10/05/2005] [Indexed: 10/25/2022]
Abstract
Trophinin mediates homophilic and apical cell adhesion between trophoblastic cells and endometrial epithelial cells, which is potentially the initial attachment step in human embryo implantation. Since trophinin is an atypical membrane protein without the signal sequence, it is possible that trophinin localizes to the cytoplasm. By treating trophinin-expressing trophoblastic cells with a series of detergents, we found significant levels of endogenous trophinin in the cytoplasm, particularly at the nuclear envelope (NE). Fluorescence photobleaching of GFP-trophinin expressed in COS-1 cells showed the stable association of trophinin with the NE, suggesting an additional role of trophinin besides apical cell adhesion.
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Affiliation(s)
- Junya Aoyama
- Department of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba 260-8675, Japan
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Basso K, Margolin AA, Stolovitzky G, Klein U, Dalla-Favera R, Califano A. Reverse engineering of regulatory networks in human B cells. Nat Genet 2005; 37:382-90. [PMID: 15778709 DOI: 10.1038/ng1532] [Citation(s) in RCA: 917] [Impact Index Per Article: 48.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2004] [Accepted: 02/08/2005] [Indexed: 12/16/2022]
Abstract
Cellular phenotypes are determined by the differential activity of networks linking coregulated genes. Available methods for the reverse engineering of such networks from genome-wide expression profiles have been successful only in the analysis of lower eukaryotes with simple genomes. Using a new method called ARACNe (algorithm for the reconstruction of accurate cellular networks), we report the reconstruction of regulatory networks from expression profiles of human B cells. The results are suggestive a hierarchical, scale-free network, where a few highly interconnected genes (hubs) account for most of the interactions. Validation of the network against available data led to the identification of MYC as a major hub, which controls a network comprising known target genes as well as new ones, which were biochemically validated. The newly identified MYC targets include some major hubs. This approach can be generally useful for the analysis of normal and pathologic networks in mammalian cells.
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Affiliation(s)
- Katia Basso
- Institute for Cancer Genetics, 1300 St. Nicholas Avenue, Room 912, New York, New York 10032, USA
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Yanaihara A, Iwasaki S, Okai T. Causes and Treatment of Implantation Failure. Taiwan J Obstet Gynecol 2005. [DOI: 10.1016/s1028-4559(09)60102-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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