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Pan L, Zhu F, Yu A, Jia C, Tang H, Zhou M, Li M, Jiang S, Li J, Cui Y, Tang L. Effect of bromodomain PHD-finger transcription factor (BPTF) on trophoblast epithelial-to-mesenchymal transition. Gene 2024; 914:148405. [PMID: 38521110 DOI: 10.1016/j.gene.2024.148405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Revised: 03/03/2024] [Accepted: 03/20/2024] [Indexed: 03/25/2024]
Abstract
The trophoblast epithelial-to-mesenchymal transition (EMT) is a procedure related to embryo implantation, spiral artery establishment and fetal-maternal communication, which is a key event for successful pregnancy. Inadequate EMT is one of the pathological mechanisms of recurrent miscarriage (RM). Whole-exome sequencing revealed that the mutation of bromodomain PHD-finger transcription factor (BPTF) was strongly associated with RM. In the present study, the effects of BPTF on EMT and the underlying mechanism were investigated. We found that the expression of BPTF in the villi of RM patients was significantly downregulated. Gene Ontology (GO) analysis revealed that BPTF participated in cell adhesion. The knockdown of BPTF prevented EMT and attenuated trophoblast invasion in vitro. BPTF activated Slug transcription by binding directly to the promoter region of the Slug gene. Interestingly, the protein levels of both Slug and BPTF were decreased in the villous cytotrophoblasts (VCTs) of RM villi. In conclusion, BPTF participates in the regulation of trophoblast EMT by activating Slug expression, suggesting that BPTF defects are an important factor in RM pathogenesis.
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Affiliation(s)
- Linqing Pan
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China; Clinical Center of Reproductive Medicine, Lianyungang Maternal and Child Health Hospital, Kangda College of Nanjing Medical University, Lianyungang 222000, China
| | - Fuquan Zhu
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Aochen Yu
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Chao Jia
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Huaiyun Tang
- Clinical Center of Reproductive Medicine, Lianyungang Maternal and Child Health Hospital, Kangda College of Nanjing Medical University, Lianyungang 222000, China
| | - Minglian Zhou
- Clinical Center of Reproductive Medicine, Lianyungang Maternal and Child Health Hospital, Kangda College of Nanjing Medical University, Lianyungang 222000, China
| | - Mingrui Li
- State Key Laboratory of Reproductive Medicine and Offspring Health, Center of Clinical Reproductive Medicine, First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Shiwen Jiang
- Clinical Center of Reproductive Medicine, Lianyungang Maternal and Child Health Hospital, Kangda College of Nanjing Medical University, Lianyungang 222000, China
| | - Juan Li
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China.
| | - Yugui Cui
- State Key Laboratory of Reproductive Medicine and Offspring Health, Center of Clinical Reproductive Medicine, First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China.
| | - Lisha Tang
- Clinical Center of Reproductive Medicine, Lianyungang Maternal and Child Health Hospital, Kangda College of Nanjing Medical University, Lianyungang 222000, China.
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Li Q, Song M, Cao K, Zhang Q. A Potential Role of CD82/KAI1 during Uterine Decidualization in Mice. Curr Issues Mol Biol 2024; 46:1799-1809. [PMID: 38534734 DOI: 10.3390/cimb46030118] [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: 02/04/2024] [Revised: 02/23/2024] [Accepted: 02/24/2024] [Indexed: 03/28/2024] Open
Abstract
The tumor metastasis suppressor gene CD82/KAI1 has been demonstrated to impact human trophoblast invasion and migration. Communication between trophoblasts and decidual stromal cells plays a crucial role in controlling the normal invasiveness of trophoblasts. However, whether CD82/KAI1 is involved in decidualization and what role it plays remain unclear. CD82/KAI1 demonstrates specific spatiotemporal expression patterns in stromal cells undergoing decidualization during pregnancy. This is observed in both naturally pregnant females post-implantation and pseudopregnant mice undergoing induced decidualization, as detected through in situ hybridization and immunofluorescence. CD82/KAI1 expression showed a significant time-dependent increase in cultured stromal cells after 24 and 48 h of progesterone (P4) and estrogen (E2) treatment. This was accompanied by a notable upregulation of decidualization markers, including cyclin D3 and PR. After transducing stromal cells with the adenovirus-overexpressing CD82/KAI1 for 48 h, the expression of cyclin D3 protein increased. Meanwhile, there was an attenuated expression of CD82/KAI1 due to an adenovirus siRNA knockdown, whereas cyclin D3 and PR expressions were not affected. Our findings suggest a potential role of CD82/KAI1 in regulating the process of decidualization, providing insights into stromal cell differentiation.
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Affiliation(s)
- Qijun Li
- Laboratory Animal Center, Chongqing Medical University, Chongqing 400016, China
| | - Mengyao Song
- Laboratory Animal Center, Chongqing Medical University, Chongqing 400016, China
| | - Ke Cao
- Laboratory Animal Center, Chongqing Medical University, Chongqing 400016, China
| | - Qian Zhang
- Laboratory Animal Center, Chongqing Medical University, Chongqing 400016, China
- Chongqing Engineering Research Center for Rodent Laboratory Animals, Chongqing 400016, China
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Drzewiecka EM, Kozlowska W, Zmijewska A, Franczak A. Nutritional restriction during the peri-conceptional period alters the myometrial transcriptome during the peri-implantation period. Sci Rep 2021; 11:21187. [PMID: 34707153 PMCID: PMC8551329 DOI: 10.1038/s41598-021-00533-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Accepted: 10/12/2021] [Indexed: 11/24/2022] Open
Abstract
This study hypothesized that female peri-conceptional undernutrition evokes transcriptomic alterations in the pig myometrium during the peri-implantation period. Myometrium was collected on days 15-16 of pregnancy from pigs fed a normal- (n = 4) or restricted-diet (n = 4) from conception until day 9th of pregnancy, and the transcriptomic profiles of the tissue were compared using Porcine (V2) Expression Microarrays 4 × 44 K. In restricted diet-fed pigs, 1021 differentially expressed genes (DEGs) with fold change ≥ 1.5, P ≤ 0.05 were revealed, and 708 of them were up-regulated. Based on the count score, the top within GOs was GO cellular components "extracellular exosome", and the top KEGG pathway was the metabolic pathway. Ten selected DEGs, i.e. hydroxysteroid (17β) dehydrogenase 8, cyclooxygenase 2, prostaglandin F receptor, progesterone receptor membrane component 1, progesterone receptor membrane component 2, annexin A2, homeobox A10, S-phase cyclin A-associated protein in the ER, SRC proto-oncogene, non-receptor tyrosine kinase, and proliferating cell nuclear antigen were conducted through qPCR to validate microarray data. In conclusion, dietary restriction during the peri-conceptional period causes alterations in the expression of genes encoding proteins involved i.a. in the endocrine activity of the myometrium, embryo-maternal interactions, and mechanisms regulating cell cycle and proliferation.
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Affiliation(s)
- Ewa Monika Drzewiecka
- Department of Animal Anatomy and Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Oczapowskiego 1A, 10-719, Olsztyn, Poland
| | - Wiktoria Kozlowska
- Department of Animal Anatomy and Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Oczapowskiego 1A, 10-719, Olsztyn, Poland
| | - Agata Zmijewska
- Department of Animal Anatomy and Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Oczapowskiego 1A, 10-719, Olsztyn, Poland
| | - Anita Franczak
- Department of Animal Anatomy and Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Oczapowskiego 1A, 10-719, Olsztyn, Poland.
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Incebiyik A, Kocarslan S, Camuzcuoglu A, Hilali NG, Incebiyik H, Camuzcuoglu H. Trophoblastic E-cadherin and TGF-beta expression in placenta percreta and normal pregnancies. J Matern Fetal Neonatal Med 2014; 29:126-9. [PMID: 25471088 DOI: 10.3109/14767058.2014.989203] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
OBJECTIVE This study aimed to evaluate whether trophoblastic transforming growth factor beta (TGF-β) and E-cadherin expression levels have a role in placenta percreta (PP) aetiopathogenesis. METHODS This study was carried out in the Obstetrics & Gynecology and Pathology Departments of Harran University Medicine School. Forty-four women who underwent caesarean section for PP and other obstetric reasons were included in this study. PP was defined as the detection of placental invasion during the histopathological examination of the hysterectomy specimen, which passes the uterine wall as a whole layer and involves the uterine serosa. Placental tissue samples were collected from all pregnant patients to evaluate TGF-β and E-cadherin expression levels. RESULTS No significant difference was found in demographic features, including age, gestational week, number of pregnancies and body mass index, among the groups. Immunohistochemical staining against E-cadherin, a cell adhesion molecule, showed significantly reduced staining in PP patients (p = 0.048). TGF-β staining was also low in PP patients, but this difference was not significant (p = 0.107). CONCLUSIONS The findings of this study suggest that a decrease in trophoblastic E-cadherin expression may have an important role in PP aetiopathogenesis.
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Affiliation(s)
| | - Sezen Kocarslan
- b Department of Pathology, Faculty of Medicine , Harran University , Sanliurfa , Turkey , and
| | | | | | - Hatice Incebiyik
- c Department of Internal Medicine , Sanliurfa Edessa Hospital , Sanliurfa , Turkey
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Lecce L, Lindsay L, Kaneko Y, Murphy CR. ICAM-2 and lipid rafts disappear from the basal plasma membrane of uterine epithelial cells during early pregnancy in rats. Cell Tissue Res 2013; 353:563-73. [DOI: 10.1007/s00441-013-1656-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2013] [Accepted: 05/02/2013] [Indexed: 01/29/2023]
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Kohan-Ghadr HR, Smith LC, Arnold DR, Murphy BD, Lefebvre RC. Aberrant expression of E-cadherin and β-catenin proteins in placenta of bovine embryos derived from somatic cell nuclear transfer. Reprod Fertil Dev 2012; 24:588-98. [PMID: 22541547 DOI: 10.1071/rd11162] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2011] [Accepted: 08/27/2011] [Indexed: 12/11/2022] Open
Abstract
Abnormal placental development is common in the bovine somatic cell nuclear transfer (SCNT)-derived fetus. In the present study, we characterised the expression of E-cadherin and β-catenin, structural proteins of adherens junctions, in SCNT gestations as a model for impaired placentation. Cotyledonary tissues were separated from pregnant uteri of SCNT (n = 6) and control pregnancies (n = 8) obtained by artificial insemination. Samples were analysed by western blot, quantitative RT-PCR (qRT-PCR) and immunohistochemistry. Bovine trophectoderm cell lines derived from SCNT and control embryos were analysed to compare with the in utero condition. Although no differences in E-cadherin or β-catenin mRNA abundance were observed in fetal tissues between the two groups, proteins encoded by these genes were markedly under-expressed in SCNT trophoblast cells. Immunohistochemistry revealed a different pattern of E-cadherin and total β-catenin localisation in SCNT placentas compared with controls. No difference was observed in subcellular localisation of dephosphorylated active-β-catenin protein in SCNT tissues compared with controls. However, qRT-PCR confirmed that the wingless (WNT)/β-catenin signalling pathway target genes CCND1, CLDN1 and MSX1 were downregulated in SCNT placentas. No differences were detected between two groups of bovine trophectoderm cell lines. Our results suggest that impaired expression of E-cadherin and β-catenin proteins, along with defective β-catenin signalling during embryo attachment, specifically during placentation, is a molecular mechanism explaining insufficient placentation in the bovine SCNT-derived fetus.
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Affiliation(s)
- H R Kohan-Ghadr
- Department of Clinical Sciences, University of Montreal, 3200 Sicotte, Saint-Hyacinthe, Québec J2S 2M2, Canada
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Ponsuksili S, Murani E, Schwerin M, Schellander K, Tesfaye D, Wimmers K. Gene expression and DNA-methylation of bovine pretransfer endometrium depending on its receptivity after in vitro-produced embryo transfer. PLoS One 2012; 7:e42402. [PMID: 22952593 PMCID: PMC3428322 DOI: 10.1371/journal.pone.0042402] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2012] [Accepted: 07/05/2012] [Indexed: 11/20/2022] Open
Abstract
Embryonic implantation to establish a pregnancy is a complex process that requires appropriate communication between the embryo and the maternal endometrium. Inadequate uterine receptivity may contribute to the majority of implantation failures. To provide a comprehensive inventory of genes and functional networks that represent the maternal input of the embryo-maternal cross-talk, a longitudinal, holistic study of the endometrial transcriptome in relation to the days of estrous and to the receptivity of the endometrium was performed in bovine. At day 3 of estrous, genes related to cell communication and mitochondrial energy metabolism were differentially expressed among high- and low-receptive endometria (HR, LR); at day 7, transcripts functioning in immune and inflammatory pathways, oxidative stress, and angiogenesis had different abundances. Additionally, temporal transcriptional changes between days 3 and 7 differed considerably among HR and LR. Further, several transcription factors were predicted as relevant for receptivity because they were either differentially expressed among HR and LR animals or are known to be associated with genes we detected to have differential expression. Finally, global DNA methylation varied according to the interaction of receptivity group and day of estrous, and a divergent trend, which correlated with abundance of DNMT1 transcript, was observed in LR and HR along the estrous cycle days. The study revealed that, even in early estrous, transcripts related to cell communication and response to exogenous stimuli, vascularization, and energy supply show divergent expression and longitudinal temporal regulation in HR and LR. Key components of these molecular pathways are known to be dependent on ovarian hormones that promote uterine receptivity.
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Affiliation(s)
- Siriluck Ponsuksili
- Research Group ‘Functional Genome Analysis’, Leibniz Institute for Farm Animal Biology, Dummerstorf, Germany
| | - Eduard Murani
- Research Unit ‘Molecular Biology’, Leibniz Institute for Farm Animal Biology, Dummerstorf, Germany
| | - Manfred Schwerin
- Research Group ‘Functional Genome Analysis’, Leibniz Institute for Farm Animal Biology, Dummerstorf, Germany
| | - Karl Schellander
- Institute of Animal Science, Animal Breeding and Husbandry Group, University of Bonn, Bonn, Germany
| | - Dawit Tesfaye
- Institute of Animal Science, Animal Breeding and Husbandry Group, University of Bonn, Bonn, Germany
| | - Klaus Wimmers
- Research Unit ‘Molecular Biology’, Leibniz Institute for Farm Animal Biology, Dummerstorf, Germany
- * E-mail:
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Differential expression of LeY and fucosyltransferase IV correlates with the receptivity of RL95-2 and HEC-1A human uterine epithelial cells. Cell Biol Int 2012; 36:469-74. [PMID: 22145955 DOI: 10.1042/cbi20100644] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Adhesion molecules expressed on the uterine endometrium are potential receptive markers in embryo implantation. RL95-2 and HEC-1A cell lines represent the high- and low-receptive endometrial epithelium respectively. LeY (Lewis Y) is a difucosylated oligosaccharide highly expressed in the endometrium of some species during implantation. α1, 3 fucosylation of LeY is catalysed by FUT4 (fucosyltransferase IV), the key synthesis enzyme for LeY. We investigated whether the difference in receptivity between the 2 cell lines was related to different expressions of LeY and FUT4. RL95-2 cells expressed a higher level of LeY and FUT4 than HEC-1A cells, as shown by immunofluorescent staining, RT-PCR (reverse transcription-PCR) or Western blotting. FUT4-siRNA (small interfering RNA) transfection down-regulated FUT4 and LeY in RL95-2 cells, and inhibited the adhesion of the embryonic cells (JAR) to RL95-2 cell monolayer. FUT4-cDNA, however, increased the expression of FUT4 and LeY in HEC-1A cells, and increased the adhesion of embryonic cells to HEC-1A cell monolayer. Alterations of LeY level by up- or down-regulation of FUT4 also mediated EGFR (epidermal growth factor receptor)/MAPK (mitogen-activated protein kinase) signalling pathway. To conclude, the expression of LeY and FUT4 correlates with endometrial receptivity, making them potential new markers for the evaluation of endometrial receptivity.
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Wei X, Liu S, Wang X, Yan Q. CD82 expression alters with human endometrial cycles and affects the uterine endometrial receptivity in vitro. Exp Biol Med (Maywood) 2012; 237:254-62. [DOI: 10.1258/ebm.2011.011309] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Embryo implantation is a process that requires both temporal and spatial synchronization of the uterine endometrium and the embryo, and the endometrium becomes receptive to the embryo during the window of implantation. Although the expression patterns of many implantation-related molecules change dynamically during this process, the impact of CD82 on endometrial receptivity has not been elucidated. By immunohistochemical staining, we found that CD82 levels rose from the proliferative phase to the secretory phase in human endometrium. Specifically, the highest level appeared in mid- and late-secretory phases. Consistently, RL95-2 cells, representative of high-receptive endometrial epithelium, expressed higher levels of CD82 than did HEC-1A cells, which are representative of low-receptive endometrial epithelium, as detected by reverse transcription-polymerase chain reaction, Western blot and immunofluorescence. Furthermore, progesterone up-regulated the expression of CD82 in both epithelial cell lines. Down-regulation of CD82 in RL95-2 cells by either CD82 siRNA transfection or treatment with a CD82 antibody significantly decreased the adhesion of human embryonic JAR cells to RL95-2 cell monolayers ( P < 0.01) and inhibited the phosphorylation of focal adhesion kinase (FAK). In contrast, up-regulation of CD82 in HEC-1A cells by CD82 cDNA transfection promoted embryonic JAR cell adhesion to HEC-1A monolayers ( P < 0.05) and activated the phosphorylation of FAK. In conclusion, the expression of CD82 increases in endometrial tissues during the window of embryo implantation, CD82 expression affects endometrial receptivity of the uterine epithelial cells in vitro, and the FAK signaling pathway may be involved in this phenomenon. The correlation between CD82 and endometrial receptivity suggests that CD82 may serve as a potential marker of endometrial function.
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Affiliation(s)
- Xiaowei Wei
- Department of Biochemistry and Molecular Biology, Dalian Medical University, Liaoning Provincial Core Lab of Glycobiology and Glycoengineering, Dalian 116044, China
| | - Shuai Liu
- Department of Biochemistry and Molecular Biology, Dalian Medical University, Liaoning Provincial Core Lab of Glycobiology and Glycoengineering, Dalian 116044, China
| | - Xiaoqi Wang
- Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Qiu Yan
- Department of Biochemistry and Molecular Biology, Dalian Medical University, Liaoning Provincial Core Lab of Glycobiology and Glycoengineering, Dalian 116044, China
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Golias C, Batistatou A, Bablekos G, Charalabopoulos A, Peschos D, Mitsopoulos P, Charalabopoulos K. Physiology and pathophysiology of selectins, integrins, and IgSF cell adhesion molecules focusing on inflammation. A paradigm model on infectious endocarditis. ACTA ACUST UNITED AC 2011; 18:19-32. [PMID: 21892874 DOI: 10.3109/15419061.2011.606381] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The development of adhesion bonds, either among cells or among cells and components of the extracellular matrix, is a crucial process. These interactions are mediated by some molecules collectively known as adhesion molecules (CAMs). CAMs are ubiquitously expressed proteins playing a central role in controlling cell migration, proliferation, survival, and apoptosis. Besides their key function in physiological maintenance of tissue integrity, CAMs play an eminent role in various pathological processes such as cardiovascular disorders, atherogenesis, atherosclerotic plaque progression and regulation of the inflammatory response. CAMs such as selectins, integrins, and immunoglobulin superfamily take part in interactions between leukocyte and vascular endothelium (leukocyte rolling, arrest, firm adhesion, migration). Experimental data and pathologic observations support the assumption that pathogenic microorganisms attach to vascular endothelial cells or sites of vascular injury initiating intravascular infections. In this review a paradigm focusing on cell adhesion molecules pathophysiology and infective endocarditis development is given.
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Affiliation(s)
- Christos Golias
- Department of Physiology, Medical Faculty, Democritus University of Thrace, Alexandroupolis, Greece
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11
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Jordan NV, Johnson GL, Abell AN. Tracking the intermediate stages of epithelial-mesenchymal transition in epithelial stem cells and cancer. Cell Cycle 2011; 10:2865-73. [PMID: 21862874 DOI: 10.4161/cc.10.17.17188] [Citation(s) in RCA: 176] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Epithelial-mesenchymal transition (EMT) is an essential developmental program that becomes reactivated in adult tissues to promote the progression of cancer. EMT has been largely studied by examining the beginning epithelial state or the ending mesenchymal state without studying the intermediate stages. Recent studies using trophoblast stem (TS) cells paused in EMT have defined the molecular and epigenetic mechanisms responsible for modulating the intermediate "metastable" stages of EMT. Targeted inactivation of MAP3K4, knockdown of CBP, or overexpression of SNAI1 in TS cells induced similar metastable phenotypes. These TS cells exhibited epigenetic changes in the histone acetylation landscape that cause loss of epithelial maintenance while preserving self-renewal and multipotency. A similar phenotype was found in claudin-low breast cancer cells with properties of EMT and stemness. This intersection between EMT and stemness in TS cells and claudin-low metastatic breast cancer demonstrates the usefulness of developmental EMT systems to understand EMT in cancer.
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Affiliation(s)
- Nicole Vincent Jordan
- Department of Pharmacology and Lineberger Comprehensive Cancer Center, University of North Carolina School of Medicine, Chapel Hill, NC, USA.
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Munro SK, Farquhar CM, Mitchell MD, Ponnampalam AP. Epigenetic regulation of endometrium during the menstrual cycle. Mol Hum Reprod 2010; 16:297-310. [PMID: 20139117 DOI: 10.1093/molehr/gaq010] [Citation(s) in RCA: 112] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The endometrium undergoes morphological and functional changes during the menstrual cycle which are essential for uterine receptivity. These changes are driven by estrogen and progesterone and involve the fine control of many different genes-several of which have been identified as being epigenetically regulated. Epigenetic modification may therefore influence the functional changes in the endometrium required for successful implantation. There is, however, only limited information on epigenetic regulation in endometrium. We review the potential role of epigenetic regulation of key processes during the menstrual cycle and present our own findings following a preliminary study into global acetylation levels in the human endometrium. A changing epigenetic state is associated with the differentiation of stem cells into different lineages and thus may be involved in endometrial regeneration. Histone acetylation is implicated in the vascular endothelial growth factor pathway during angiogenesis, and studies using histone deacetylase inhibitors suggest an involvement in endometrial proliferation and differentiation. The processes of decidualization and implantation are also associated with epigenetic change and epigenetic modulators show variable expression across the menstrual cycle. Our own studies found that endometrial global histone acetylation, as determined by western blotting, changed throughout the menstrual cycle and correlated well with expected transcription activity during the different phases. This suggests that epigenetics may be involved in the regulation of endometrial gene expression during the menstrual cycle and that abnormal epigenetic modifications may therefore be associated with implantation failure and early pregnancy loss as well as with other endometrial pathologies.
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Affiliation(s)
- S K Munro
- The Liggins Institute, The University of Auckland, Auckland 1142, New Zealand
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13
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Regulation of invasive growth: similar epigenetic mechanisms underpin tumour progression and implantation in human pregnancy. Clin Sci (Lond) 2009; 118:451-7. [PMID: 20025611 DOI: 10.1042/cs20090503] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Malignant and trophoblastic cells share the capacity to migrate and invade surrounding tissues; however, trophoblast invasion during implantation is tightly regulated, whereas that associated with tumour progression is not. It is likely that similar mechanisms underlie the dynamic regulation of cell invasion and migration in both cases, and that these are based on epigenetic processes. This hypothesis is supported by recent results demonstrating that expression of the intercellular adhesion molecule E-cadherin, deregulation of which is associated with increased cell motility and invasive potential in cancer, is under epigenetic control in trophoblast cell lines. Further elucidation of the epigenetic pathways shared by trophoblasts and malignant cells is likely to lead to the identification of common diagnostic approaches for the early identification both of cancer and pathological pregnancies involving aberrant trophoblast invasion.
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Adam12 plays a role during uterine decidualization in mice. Cell Tissue Res 2009; 338:413-21. [PMID: 19841944 DOI: 10.1007/s00441-009-0884-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2009] [Accepted: 09/09/2009] [Indexed: 10/20/2022]
Abstract
In mouse, decidualization is characterized by the proliferation of stromal cells and their differentiation into specialized type of cells (decidual cells) with polyploidy, surrounding the implanting blastocyst. However, the mechanisms involved in these processes remain poorly understood. Using multiple approaches, we have examined the role of Adam12 in decidualization during early pregnancy in mice. Adam12 is spatiotemporally expressed in decidualizing stromal cells in intact pregnant females and in pseudopregnant mice undergoing artificially induced decidualization. In the ovariectomized mouse uterus, the expression of Adam12 is upregulated after progesterone treatment, which is primarily mediated by nuclear progesterone receptor. In a stromal cell culture model, the expression of Adam12 gradually rises with the progression of stromal decidualization, whereas the attenuated expression of Adam12 after siRNA knockdown significantly blocks the progression of decidualization. Our study suggests that Adam12 is involved in promoting uterine decidualization during pregnancy.
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Cetin I, Berti C, Calabrese S. Role of micronutrients in the periconceptional period. Hum Reprod Update 2009; 16:80-95. [DOI: 10.1093/humupd/dmp025] [Citation(s) in RCA: 204] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
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