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Tang HY, Lin M, Liang YQ, Wang JH, Yi HG, Yang M. Tspan5 promotes the EMT process to regulate the syncytialization of trophoblast cells by activating Notch signalling. ZYGOTE 2023; 31:498-506. [PMID: 37485669 DOI: 10.1017/s0967199423000369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/25/2023]
Abstract
Placental trophoblastic cells play important roles in placental development and fetal health. However, the mechanism of trophoblastic cell fusion is still not entirely clear. The level of Tspan5 in the embryo culture medium was detected using enzyme-linked immunosorbent assay (ELISA). Fusion of BeWo cells was observed by immunofluorescence. Cell fusion-related factors and EMT-related factors were identified by qRT-PCR and western blotting. Notch protein repressor DAPT was used to verify the role of Tspan5 in BeWo cells. The expression of Tspan5 was significantly increased in embryo culture medium. The fusion of BeWo cells was observed after treatment with forskolin (FSK). Cell fusion-related factors (i.e. β-hCG and syncytin 1/2) and Tspan5 were significantly increased after FSK treatment. In addition, FSK treatment promoted EMT-related protein expression in BeWo cells. Knockdown of Tspan5 inhibited cell fusion and EMT-related protein levels. Notch-1 and Jagged-1 protein levels were significantly upregulated, and the EMT process was activated by overexpression of Tspan5 in FSK-treated BeWo cells. Interestingly, blocking the Notch pathway by the repressor DAPT had the opposite results. These results indicated that Tspan5 could promote the EMT process by activating the Notch pathway, thereby causing cell fusion. These findings contribute to a better understanding of trophoblast cell syncytialization and embryonic development. Tspan5 may be used as a therapeutic target for normal placental development.
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Affiliation(s)
- Hai-Yu Tang
- Department of Reproductive Medicine, Meizhou People's Hospital (Huangtang Hospital), Meizhou514000, Guangdong Province, China
| | - Mei Lin
- Department of Reproductive Medicine, Meizhou People's Hospital (Huangtang Hospital), Meizhou514000, Guangdong Province, China
| | - Yong-Qian Liang
- Department of Reproductive Medicine, Meizhou People's Hospital (Huangtang Hospital), Meizhou514000, Guangdong Province, China
| | - Jin-Hua Wang
- Department of Reproductive Medicine, Meizhou People's Hospital (Huangtang Hospital), Meizhou514000, Guangdong Province, China
| | - Hong-Gan Yi
- Department of Reproductive Medicine, Meizhou People's Hospital (Huangtang Hospital), Meizhou514000, Guangdong Province, China
| | - Man Yang
- Department of Reproductive Medicine, Meizhou People's Hospital (Huangtang Hospital), Meizhou514000, Guangdong Province, China
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Bhalla N, Franzén L, Scheynius A, Papadogiannakis N, Hansson SR, Lager S, Ståhl PL. Spatial transcriptomics of human placentas reveal distinct RNA patterns associated with morphology and preeclampsia. Placenta 2023; 139:213-216. [PMID: 37481829 DOI: 10.1016/j.placenta.2023.07.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 02/26/2023] [Accepted: 07/04/2023] [Indexed: 07/25/2023]
Abstract
Spatial transcriptomics (ST) maps RNA level patterns within a tissue. This technology has not been previously applied to human placental tissue. We demonstrate analysis of human placental samples with ST. Unsupervised clustering revealed that distinct RNA patterns were found corresponding to different morphological structures. Additionally, when focusing upon terminal villi and hemoglobin associated structures, RNA levels differed between placentas from full term healthy pregnancies and those complicated by preeclampsia. The results from this study can provide a benchmark for future ST studies in placenta.
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Affiliation(s)
- Nayanika Bhalla
- Science for Life Laboratory, Department of Gene Technology, KTH Royal Institute of Technology, Stockholm, Sweden
| | - Lovisa Franzén
- Science for Life Laboratory, Department of Gene Technology, KTH Royal Institute of Technology, Stockholm, Sweden
| | - Annika Scheynius
- Department of Clinical Science and Education, Karolinska Institutet, Sachs' Children and Youth Hospital, Södersjukhuset, Stockholm, Sweden
| | - Nikos Papadogiannakis
- Department of Laboratory Medicine, Division of Pathology, Karolinska Institutet, Stockholm, Sweden; Department of Pathology, Karolinska University Hospital, Stockholm, Sweden
| | - Stefan R Hansson
- Department of Obstetrics and Gynecology, Institute of Clinical Sciences Lund, Lund University, Lund, Sweden
| | - Susanne Lager
- Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden.
| | - Patrik L Ståhl
- Science for Life Laboratory, Department of Gene Technology, KTH Royal Institute of Technology, Stockholm, Sweden
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Li X, Li C, Wang Y, Cai J, Zhao L, Su Z, Ye H. IGFBP1 inhibits the invasion, migration, and apoptosis of HTR-8/SVneo trophoblast cells in preeclampsia. Hypertens Pregnancy 2022; 41:53-63. [PMID: 35168459 DOI: 10.1080/10641955.2022.2033259] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
OBJECTIVE To investigate the effects and underlying mechanisms of IGFBP1 on the biological functions of trophoblasts in simulated preeclampsia. METHODS IGFBP1 expression in placenta was determined by immunohistochemistry. HTR-8/SVneo cells were stimulated with/without IGFBP1-overexpression and hypoxia-reoxygenation, and the proliferation, invasion, migration, and apoptosis were detected by CCK8, transwell, and flow cytometry, respectively. RESULTS IGFBP1 expression was increased in placenta of preeclampsia. IGFBP1 overexpression inhibited proliferation, invasion, migration, and apoptosis of HTR-8/SVneo cells and induced MMP-26 expression with/without hypoxia-reoxygenation challenge. CONCLUSION IGFBP1 affects biological functions of trophoblasts, and it may play a role in pathophysiology of preeclampsia by inducing MMP-26.
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Affiliation(s)
- Xiujuan Li
- Department of Clinical Laboratory, Women and Children's Hospital, Xiamen University, School of Medicine, Xiamen, PR China
| | - Chenxi Li
- Department of Clinical Laboratory, Women and Children's Hospital, Xiamen University, School of Medicine, Xiamen, PR China
| | - Ye Wang
- Department of Clinical Laboratory, Women and Children's Hospital, Xiamen University, School of Medicine, Xiamen, PR China
| | - Jianxing Cai
- Department of Clinical Laboratory, Women and Children's Hospital, Xiamen University, School of Medicine, Xiamen, PR China
| | - Li Zhao
- School of Public Health, Xiamen University, Xiamen, PR China
| | - Zhiying Su
- Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen, PR China
| | - Huiming Ye
- Department of Clinical Laboratory, Women and Children's Hospital, Xiamen University, School of Medicine, Xiamen, PR China
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Liao S, Vickers MH, Taylor RS, Jones B, Fraser M, McCowan LM, Baker PN, Perry JK. Maternal serum IGF-1, IGFBP-1 and 3, and placental growth hormone at 20 weeks’ gestation in pregnancies complicated by preeclampsia. Pregnancy Hypertens 2017; 10:149-154. [DOI: 10.1016/j.preghy.2017.07.148] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Revised: 07/17/2017] [Accepted: 07/25/2017] [Indexed: 11/16/2022]
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Transcriptional signature of lymphoblastoid cell lines of BRCA1, BRCA2 and non- BRCA1/2 high risk breast cancer families. Oncotarget 2017; 8:78691-78712. [PMID: 29108258 PMCID: PMC5667991 DOI: 10.18632/oncotarget.20219] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Accepted: 07/17/2017] [Indexed: 12/20/2022] Open
Abstract
Approximately 25% of hereditary breast cancer cases are associated with a strong familial history which can be explained by mutations in BRCA1 or BRCA2 and other lower penetrance genes. The remaining high-risk families could be classified as BRCAX (non-BRCA1/2) families. Gene expression involving alternative splicing represents a well-known mechanism regulating the expression of multiple transcripts, which could be involved in cancer development. Thus using RNA-seq methodology, the analysis of transcriptome was undertaken to potentially reveal transcripts implicated in breast cancer susceptibility and development. RNA was extracted from immortalized lymphoblastoid cell lines of 117 women (affected and unaffected) coming from BRCA1, BRCA2 and BRCAX families. Anova analysis revealed a total of 95 transcripts corresponding to 85 different genes differentially expressed (Bonferroni corrected p-value <0.01) between those groups. Hierarchical clustering allowed distinctive subgrouping of BRCA1/2 subgroups from BRCAX individuals. We found 67 transcripts, which could discriminate BRCAX from BRCA1/BRCA2 individuals while 28 transcripts discriminate affected from unaffected BRCAX individuals. To our knowledge, this represents the first study identifying transcripts differentially expressed in lymphoblastoid cell lines from major classes of mutation-related breast cancer subgroups, namely BRCA1, BRCA2 and BRCAX. Moreover, some transcripts could discriminate affected from unaffected BRCAX individuals, which could represent potential therapeutic targets for breast cancer treatment.
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Reyna E, Mejia J, Reyna N, Torres D, Santos J, Perozo J. Concentraciones de interleucina 1 beta en pacientes con preeclampsia y embarazadas normotensas sanas. CLINICA E INVESTIGACION EN GINECOLOGIA Y OBSTETRICIA 2011. [DOI: 10.1016/j.gine.2009.07.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Nishizawa H, Pryor-Koishi K, Suzuki M, Kato T, Kogo H, Sekiya T, Kurahashi H, Udagawa Y. Increased levels of pregnancy-associated plasma protein-A2 in the serum of pre-eclamptic patients. Mol Hum Reprod 2008; 14:595-602. [PMID: 18805800 DOI: 10.1093/molehr/gan054] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Pregnancy-associated plasma protein-A and -A2 (PAPP-A and -A2) are proteases that cleave insulin-like growth factor-binding proteins (IGFBPs), resulting in local activation of IGF signaling pathways. Here, we examined PAPP-A and -A2 mRNA and protein levels in placenta and maternal sera from women with pre-eclampsia and compared them with samples from uncomplicated pregnancy. PAPP-A2 but not PAPP-A mRNA and protein were elevated in pre-eclamptic placenta (P < 0.01). PAPP-A2 is normally produced in placental syncytiotrophoblast cells and maternal decidua. PAPP-A2 in syncytiotrophoblast cells was dramatically increased in pre-eclampsia. Maternal serum concentrations of PAPP-A2 but not PAPP-A were also significantly elevated in pre-eclampsia as compared with uncomplicated pregnancy. mRNA levels of IGFBP5, a specific substrate for PAPP-A2 protease activity, were also significantly increased, suggesting a potential role for IGFBP5 in fetal and placental growth suppression during pre-eclampsia. However, IGFBP5 protein levels were not increased in placenta from pre-eclampsia, possibly due to cleavage by up-regulated PAPP-A2. These data might imply that PAPP-A2 may be up-regulated in pre-eclamptic pregnancy to compensate for IGFBP5-mediated suppression of the IGF pathway, although final birthweights are still low in pre-eclamptic pregnancy.
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Affiliation(s)
- Haruki Nishizawa
- Department of Obstetrics and Gynecology, Fujita Health University School of Medicine, 1-98 Dengakugakubo, Kutsukake, Toyoake, Aichi 470-1192, Japan.
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Gundogan F, Elwood G, Longato L, Tong M, Feijoo A, Carlson RI, Wands JR, de la Monte SM. Impaired placentation in fetal alcohol syndrome. Placenta 2007; 29:148-57. [PMID: 18054075 DOI: 10.1016/j.placenta.2007.10.002] [Citation(s) in RCA: 82] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2006] [Revised: 10/09/2007] [Accepted: 10/10/2007] [Indexed: 11/26/2022]
Abstract
Intrauterine growth restriction (IUGR) is one of the key features of fetal alcohol syndrome (FAS), and IUGR can be mediated by impaired placentation. Insulin-like growth factors (IGF) regulate placentation due to stimulatory effects on extravillous trophoblasts, which are highly motile and invasive. Previous studies demonstrated that extravillous trophoblasts express high levels of aspartyl-(asparaginyl) beta-hydroxylase (AAH), a gene that is regulated by IGF and has a critical role in cell motility and invasion. The present study examines the hypothesis that ethanol impaired placentation is associated with inhibition of AAH expression in trophoblasts. Pregnant Long Evans rats were fed isocaloric liquid diets containing 0% or 37% ethanol by caloric content. Placentas harvested on gestation day 16 were used for histopathological, mRNA, and protein studies to examine AAH expression in relation to the integrity of placentation and ethanol exposure. Chronic ethanol feeding prevented or impaired the physiological conversion of uterine vessels required for expansion of maternal circulation into placenta, a crucial process for adequate placentation. Real-time quantitative RT-PCR analysis demonstrated significant reductions in IRS-1, IRS-2, and significant increases in IGF-II and IGF-II receptor mRNA levels in ethanol-exposed placentas. These abnormalities were associated with significantly reduced levels of AAH expression in trophoblastic cells, particularly within the mesometrial triangle (deep placental bed) as demonstrated by real time quantitative RT-PCR, Western blot analysis, ELISA, and immunohistochemical staining. Ethanol-impaired placentation is associated with inhibition of AAH expression in trophoblasts. This effect of chronic gestational exposure to ethanol may contribute to IUGR in FAS.
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Affiliation(s)
- F Gundogan
- Department of Pathology and Medicine, Women and Infants Hospital, Providence, RI 02903, USA
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Trollmann R, Klingmüller K, Schild RL, Rascher W, Dötsch J. Differential gene expression of somatotrophic and growth factors in response to in vivo hypoxia in human placenta. Am J Obstet Gynecol 2007; 197:601.e1-6. [PMID: 18060947 DOI: 10.1016/j.ajog.2007.04.008] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2006] [Revised: 01/28/2007] [Accepted: 04/11/2007] [Indexed: 11/28/2022]
Abstract
OBJECTIVE Hypoxia-inducible transcription factors (HIFs) have been characterized as the most important regulators of O(2)-dependent gene transcription. We investigated expression of HIF-dependent growth factors and HIF-independent somatotrophic factors in term placenta in response to hypoxic ischemia. STUDY DESIGN Our cross-sectional in vivo analysis included term placentas of gestations complicated by the following: (1) birth asphyxia (n = 22); (2) chronic hypoxic ischemia (n = 22); and (3) controls (n = 28). Gene expression of leptin, insulin-like growth factor (IGF)-1, IGF-2, ghrelin, and human placental growth hormone (hPGH) were measured by TaqMan reverse transcriptase-polymerase chain reaction. RESULTS Acute and chronic hypoxia significantly increased leptin messenger ribonucleic acid (mRNA) levels, compared with controls (P < .001). Augmented IGF-2 mRNA levels were present in chronic hypoxia (P < .001) but not in birth asphyxia. IGF-1, ghrelin, and hPGH mRNA levels did not change in relation to hypoxia. CONCLUSION IGF-2 and leptin are suggested to be involved in adaptive response to hypoxic ischemia in term placenta with differential transcriptional regulation related to the duration of hypoxia.
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Affiliation(s)
- Regina Trollmann
- Department of Pediatrics, Faculty of Medicine, Friedrich-Alexander University of Erlangen-Nürnberg, Erlangen, Germany.
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Antonazzo P, Alvino G, Cozzi V, Grati FR, Tabano S, Sirchia S, Miozzo M, Cetin I. Placental IGF2 expression in normal and intrauterine growth restricted (IUGR) pregnancies. Placenta 2007; 29:99-101. [PMID: 17919721 DOI: 10.1016/j.placenta.2007.06.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2007] [Revised: 06/14/2007] [Accepted: 06/15/2007] [Indexed: 12/23/2022]
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