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Canse C, Yildirim E, Yaba A. Overview of junctional complexes during mammalian early embryonic development. Front Endocrinol (Lausanne) 2023; 14:1150017. [PMID: 37152932 PMCID: PMC10158982 DOI: 10.3389/fendo.2023.1150017] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Accepted: 02/28/2023] [Indexed: 05/09/2023] Open
Abstract
Cell-cell junctions form strong intercellular connections and mediate communication between blastomeres during preimplantation embryonic development and thus are crucial for cell integrity, polarity, cell fate specification and morphogenesis. Together with cell adhesion molecules and cytoskeletal elements, intercellular junctions orchestrate mechanotransduction, morphokinetics and signaling networks during the development of early embryos. This review focuses on the structure, organization, function and expressional pattern of the cell-cell junction complexes during early embryonic development. Understanding the importance of dynamic junction formation and maturation processes will shed light on the molecular mechanism behind developmental abnormalities of early embryos during the preimplantation period.
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Affiliation(s)
- Ceren Canse
- Faculty of Medicine, Yeditepe University, Istanbul, Türkiye
| | - Ecem Yildirim
- Department of Histology and Embryology, Yeditepe University Faculty of Medicine, Istanbul, Türkiye
| | - Aylin Yaba
- Department of Histology and Embryology, Yeditepe University Faculty of Medicine, Istanbul, Türkiye
- *Correspondence: Aylin Yaba,
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2
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Kai Y, Mei H, Kawano H, Nakajima N, Takai A, Kumon M, Inoue A, Yamashita N. Transcriptomic signatures in trophectoderm and inner cell mass of human blastocysts classified according to developmental potential, maternal age and morphology. PLoS One 2022; 17:e0278663. [PMID: 36455208 PMCID: PMC9715016 DOI: 10.1371/journal.pone.0278663] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 11/21/2022] [Indexed: 12/03/2022] Open
Abstract
Selection of high-quality embryos is important to achieve successful pregnancy in assisted reproductive technology (ART). Recently, it has been debated whether RNA-sequencing (RNA-Seq) should be applied to ART to predict embryo quality. However, information on genes that can serve as markers for pregnant expectancy is limited. Furthermore, there is no information on which transcriptome of trophectoderm (TE) or inner cell mass (ICM) is more highly correlated with pregnant expectancy. Here, we performed RNA-Seq analysis of TE and ICM of human blastocysts, the pregnancy expectation of which was retrospectively determined using the clinical outcomes of 1,890 cases of frozen-thawed blastocyst transfer. We identified genes that were correlated with the expected pregnancy rate in ICM and TE, respectively, with a larger number of genes identified in TE than in ICM. Downregulated genes in the TE of blastocysts that were estimated to have lower expectation of pregnancy included tight junction-related genes such as CXADR and ATP1B1, which have been implicated in peri-implantation development. Moreover, we identified dozens of differentially expressed genes by regrouping the blastocysts based on the maternal age and the Gardner score. Additionally, we showed that aneuploidy estimation using RNA-Seq datasets does not correlate with pregnancy expectation. Thus, our study provides an expanded list of candidate genes for the prediction of pregnancy in human blastocyst embryos.
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Affiliation(s)
- Yoshiteru Kai
- Reproductive Medicine Research Center, Yamashita Shonan Yume Clinic, Fujisawa, Japan
- * E-mail: (YK); (AI)
| | - Hailiang Mei
- RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Hiroomi Kawano
- Reproductive Medicine Research Center, Yamashita Shonan Yume Clinic, Fujisawa, Japan
| | - Naotsuna Nakajima
- Reproductive Medicine Research Center, Yamashita Shonan Yume Clinic, Fujisawa, Japan
| | - Aya Takai
- Reproductive Medicine Research Center, Yamashita Shonan Yume Clinic, Fujisawa, Japan
| | - Mami Kumon
- RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Azusa Inoue
- RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
- Tokyo Metropolitan University, Hachioji, Japan
- * E-mail: (YK); (AI)
| | - Naoki Yamashita
- Reproductive Medicine Research Center, Yamashita Shonan Yume Clinic, Fujisawa, Japan
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Qu H, Khalil RA. Role of ADAM and ADAMTS Disintegrin and Metalloproteinases in Normal Pregnancy and Preeclampsia. Biochem Pharmacol 2022; 206:115266. [PMID: 36191626 DOI: 10.1016/j.bcp.2022.115266] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 09/22/2022] [Accepted: 09/23/2022] [Indexed: 11/16/2022]
Abstract
Normal pregnancy (NP) involves intricate processes starting with egg fertilization, proceeding to embryo implantation, placentation and gestation, and culminating in parturition. These pregnancy-related processes require marked uteroplacental and vascular remodeling by proteolytic enzymes and metalloproteinases. A disintegrin and metalloproteinase (ADAM) and ADAM with thrombospondin motifs (ADAMTS) are members of the zinc-dependent family of proteinases with highly conserved protein structure and sequence homology, which include a pro-domain, and a metalloproteinase, disintegrin and cysteine-rich domain. In NP, ADAMs and ADAMTS regulate sperm-egg fusion, embryo implantation, trophoblast invasion, placental angiogenesis and spiral arteries remodeling through their ectodomain proteolysis of cell surface cytokines, cadherins and growth factors as well as their adhesion with integrins and cell-cell junction proteins. Preeclampsia (PE) is a serious complication of pregnancy characterized by new-onset hypertension (HTN) in pregnancy (HTN-Preg) at or after 20 weeks of gestation, with or without proteinuria. Insufficient trophoblast invasion of the uterine wall, inadequate expansive remodeling of the spiral arteries, reduced uteroplacental perfusion pressure, and placental ischemia/hypoxia are major initiating events in the pathogenesis of PE. Placental ischemia/hypoxia increase the release of reactive oxygen species (ROS), which lead to aberrant expression/activity of certain ADAMs and ADAMTS. In PE, abnormal expression/activity of specific ADAMs and ADAMTS that function as proteolytic sheddases could alter proangiogenic and growth factors, and promote the release of antiangiogenic factors and inflammatory cytokines into the placenta and maternal circulation leading to generalized inflammation, endothelial cell injury and HTN-Preg, renal injury and proteinuria, and further decreases in uteroplacental blood flow, exaggeration of placental ischemia, and consequently fetal growth restriction. Identifying the role of ADAMs and ADAMTS in NP and PE has led to a better understanding of the underlying molecular and vascular pathways, and advanced the potential for novel biomarkers for prediction and early detection, and new approaches for the management of PE.
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Affiliation(s)
- Hongmei Qu
- Vascular Surgery Research Laboratories, Division of Vascular and Endovascular Surgery, Brigham and Women's Hospital, and Harvard Medical School, Boston, MA
| | - Raouf A Khalil
- Vascular Surgery Research Laboratories, Division of Vascular and Endovascular Surgery, Brigham and Women's Hospital, and Harvard Medical School, Boston, MA.
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Segura-Benítez M, Carbajo-García MC, Corachán A, Faus A, Pellicer A, Ferrero H. Proteomic analysis of extracellular vesicles secreted by primary human epithelial endometrial cells reveals key proteins related to embryo implantation. Reprod Biol Endocrinol 2022; 20:3. [PMID: 34980157 PMCID: PMC8722215 DOI: 10.1186/s12958-021-00879-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 12/14/2021] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Successful implantation is dependent on coordination between maternal endometrium and embryo, and the role of EVs in the required cross-talk cell-to-cell has been recently established. In this regard, it has been reported that EVs secreted by the maternal endometrium can be internalized by human trophoblastic cells transferring their contents and enhancing their adhesive and invasive capacity. This is the first study to comprehensively evaluate three EV isolation methods on human endometrial epithelial cells in culture and to describe the proteomic content of EVs secreted by pHEECs from fertile women. METHODS Ishikawa cells and pHEECs were in vitro cultured and hormonally treated; subsequently, conditioned medium was collected and EVs isolated. Ishikawa cells were used for the comparison of EVs isolation methods ultracentrifugation, ExoQuick-TC and Norgen Cell Culture Media Exosome Purification Kit (n = 3 replicates/isolation method). pHEECs were isolated from endometrial biopsies (n = 8/replicate; 3 replicates) collected from healthy oocyte donors with confirmed fertility, and protein content of EVs isolated by the most efficient methodology was analysed using liquid chromatography-tandem mass spectrometry. EV concentration and size were analyzed by nanoparticle tracking analysis, EV morphology visualized by transmission electron microscopy and protein marker expression was determined by Western blotting. RESULTS Ultracentrifugation was the most efficient methodology for EV isolation from medium of endometrial epithelial cells. EVs secreted by pHEECs and isolated by ultracentrifugation were heterogeneous in size and expressed EV protein markers HSP70, TSG101, CD9, and CD81. Proteomic analysis identified 218 proteins contained in these EVs enriched in biological processes involved in embryo implantation, including cell adhesion, differentiation, communication, migration, extracellular matrix organization, vasculature development, and reproductive processes. From these proteins, 82 were selected based on their functional relevance in implantation success as possible implantation biomarkers. CONCLUSIONS EV protein cargos are implicated in biological processes related to endometrial receptivity, embryo implantation, and early embryo development, supporting the concept of a communication system between the embryo and the maternal endometrium via EVs. Identified proteins may define new biomarkers of endometrial receptivity and implantation success.
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Affiliation(s)
- Marina Segura-Benítez
- Fundación IVI, Instituto de Investigación Sanitaria La Fe, Valencia, Spain
- Departamento de Pediatría, Obstetricia Y Ginecología, Universidad de Valencia, Valencia, Spain
| | - María Cristina Carbajo-García
- Fundación IVI, Instituto de Investigación Sanitaria La Fe, Valencia, Spain
- Departamento de Pediatría, Obstetricia Y Ginecología, Universidad de Valencia, Valencia, Spain
| | - Ana Corachán
- Fundación IVI, Instituto de Investigación Sanitaria La Fe, Valencia, Spain
- Departamento de Pediatría, Obstetricia Y Ginecología, Universidad de Valencia, Valencia, Spain
| | - Amparo Faus
- Fundación IVI, Instituto de Investigación Sanitaria La Fe, Valencia, Spain
| | - Antonio Pellicer
- Fundación IVI, Instituto de Investigación Sanitaria La Fe, Valencia, Spain
- IVIRMA Rome, Rome, Italy
| | - Hortensia Ferrero
- Fundación IVI, Instituto de Investigación Sanitaria La Fe, Valencia, Spain.
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Traf4 is required for tight junction complex during mouse blastocyst formation. JOURNAL OF ANIMAL REPRODUCTION AND BIOTECHNOLOGY 2021. [DOI: 10.12750/jarb.36.4.307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
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Lee S, Choi I. Expression patterns and biological function of Specc1 during mouse preimplantation development. Gene Expr Patterns 2021; 41:119196. [PMID: 34166821 DOI: 10.1016/j.gep.2021.119196] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 06/10/2021] [Accepted: 06/15/2021] [Indexed: 10/21/2022]
Abstract
Two unique features occur during preimplantation embryo development: 1) initiation of calcium-dependent adhesion and establishment of apicobasal polarity in the morula, and 2) formation of the blastocoel by establishment of tight junctions (TJs), ion channels, and water channels in the outer blastomeres. Although several key genes involved in morula and blastocyst formation have been identified, most remain unknown. Sperm antigen with calponin homology and coiled-coil domains 1(SPECC1) is highly expressed in testis and tumor cells, and is involved in diverse cellular processes such as ribosome biogenesis, rRNA transcription, mitosis, cell growth, and apoptosis in tumor cells. However, spatiotemporal expressions of Specc1 during mouse preimplantation development have not yet been investigated. Here, we examined the expression patterns of Specc1 using qRT-PCR and immunocytochemistry, and its biological function using siRNA injection into 1-cell zygotes. Specc1 was detectable throughout preimplantation development and markedly increased from the morula stage onwards. It was particularly observed in trophectoderm cells, rather than the inner cell mass of blastocyst. Maternal and zygotic Specc1 transcripts were abolished using RNA interference. There were no significant differences in development between Specc1 knock down (KD) and control embryos until the morula stage, but was significantly reduced blastocyst development and increased tight junction permeability in KD embryos, as assessed by FITC uptake. In summary, elevated expression of Specc1 in the morula and blastocyst may affect blastocyst formation, including tight junction complex during the morula to blastocyst transition.
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Affiliation(s)
- Seulah Lee
- Division of Animal and Dairy Sciences, College of Agriculture and Life Sciences, Chungnam University, 99 Daehak-ro, Yuseong-gu, Daejeon, 34134, Republic of Korea
| | - Inchul Choi
- Division of Animal and Dairy Sciences, College of Agriculture and Life Sciences, Chungnam University, 99 Daehak-ro, Yuseong-gu, Daejeon, 34134, Republic of Korea.
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Yin G, Tian P, BuHe A, Yan W, Li T, Sun Z. LncRNA LINC00689 Promotes the Progression of Gastric Cancer Through Upregulation of ADAM9 by Sponging miR-526b-3p. Cancer Manag Res 2020; 12:4227-4239. [PMID: 32581594 PMCID: PMC7280092 DOI: 10.2147/cmar.s231042] [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: 09/14/2019] [Accepted: 02/14/2020] [Indexed: 12/14/2022] Open
Abstract
Introduction Increasing studies have demonstrated that noncoding RNAs, including miRNAs and lncRNAs, have vital roles in mediating cancer progression. However, the expression features and biological functions of LINC00689 in gastric cancer (GC) remain largely unknown. This study was designed to investigate the functions of LINC00689, miR-526b-3p and ADAM9 as well as their interactions in GC. Methods Real time PCR(RT-PCR) was used to detect the expression of LINC0068, miR-526b-3p and ADAM9 in both GC tissues or cell lines. Gain- and loss- of functions of assays were conducted to verify the role of LINC0068, miR-526b-3p and ADAM9 in GC development. Cell proliferation were determined by CCK8 assay and transwell assay and scratch wound-healing assay were used to test cell invasion and migration. Further, the relationships between LINC00689 and miR-526b-3p, miR-526b-3p and ADAM9 were predicted by bioinformatics analysis and then proved by Luciferase reporter assay and RNA Immunoprecipitation(RIP) assay. Results We found that LINC00689 was upregulated in GC tissues and positively correlated with advanced tumor stage and tumor size, while miR-526b-3p was downregulated. Furthermore, gain- and loss-of-function experiments revealed that LINC00689 promoted the proliferation, migration, invasion and epithelial-mesenchymal transition (EMT) of GC cells, while miR-526b-3p had the opposite effects. The underlying mechanisms indicated that LINC00689 functioned as a competing endogenous RNA (ceRNA) by sponging miR-526b-3p in GC cells. Further investigations confirmed that ADAM9 was a direct target of miR-526b-3p and positively modulated the progression of GC. Conclusion Our study suggests that LINC00689 functions as a novel oncogenic lncRNA in the development of GC by promoting ADAM9 expression through suppression of miR-526b-3p.
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Affiliation(s)
- Gang Yin
- Oncology Surgery Department, Beijing Shijitan Hospital, Capital Medical University (Peking University Ninth School of Clinical Medicine), Beijing 100038, People's Republic of China
| | - PeiRong Tian
- Oncology Surgery Department, Beijing Shijitan Hospital, Capital Medical University (Peking University Ninth School of Clinical Medicine), Beijing 100038, People's Republic of China
| | - Amin BuHe
- Oncology Surgery Department, Beijing Shijitan Hospital, Capital Medical University (Peking University Ninth School of Clinical Medicine), Beijing 100038, People's Republic of China
| | - Wei Yan
- Oncology Surgery Department, Beijing Shijitan Hospital, Capital Medical University (Peking University Ninth School of Clinical Medicine), Beijing 100038, People's Republic of China
| | - TianXiong Li
- Oncology Surgery Department, Beijing Shijitan Hospital, Capital Medical University (Peking University Ninth School of Clinical Medicine), Beijing 100038, People's Republic of China
| | - ZhiPeng Sun
- Oncology Surgery Department, Beijing Shijitan Hospital, Capital Medical University (Peking University Ninth School of Clinical Medicine), Beijing 100038, People's Republic of China
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