PlacentaPub Date : 2025-02-01DOI: 10.1016/j.placenta.2024.12.023
Yanxuan Xiao , Maliang Tao , Jiexing He , Jiaqi Li , Qiuyu Huang , Yiqi Yu , Mingze Gao , Qian Chen , Zhijian Wang
{"title":"TIG1 triggers placental senescence in preeclampsia through LMNA/p53 axis activation","authors":"Yanxuan Xiao , Maliang Tao , Jiexing He , Jiaqi Li , Qiuyu Huang , Yiqi Yu , Mingze Gao , Qian Chen , Zhijian Wang","doi":"10.1016/j.placenta.2024.12.023","DOIUrl":"10.1016/j.placenta.2024.12.023","url":null,"abstract":"<div><h3>Introduction</h3><div>The mechanism behind abnormal placental aging in preeclampsia (PE) is unclear. Although TIG1 is widely expressed in the human placenta, its function hasn't been well understood. Our previous study found a significant elevation of TIG1 in the placentas of PE patients. In this study, we focused on the molecular mechanism by which TIG1 functions in PE.</div></div><div><h3>Methods</h3><div>TIG1 expression of placentas from PE patients and L-NAME mice were analyzed using qRT-PCR, Western blot, and immunohistochemistry. TIG1-overexpressed HTR-8/SVneo cells were constructed for transcriptomic sequencing. Senescence in the placenta was evaluated by biomarkers of p16, p21, and p53. TIG1 binding proteins were identified via co-immunoprecipitation. A co-culture system of HTR-8/SVneo and human endometrial stromal cells was developed to study the change in trophoblasts’ function.</div></div><div><h3>Results</h3><div>TIG1 expression was significantly increased in the PE placentas. Elevated expression of TIG1 was associated with abnormal senescence of trophoblasts. TIG1 induced trophoblasts’ senescence by regulating LMNA/p53 axis. The senescence of trophoblasts can be manifested as reduced invasion ability in the co-culture system.</div></div><div><h3>Discussion</h3><div>Our study indicated that TIG1 was crucial in the development of PE by causing the senescence of trophoblasts and reducing their invasiveness, offering insights into the molecular mechanisms of placental dysfunction in PE.</div></div>","PeriodicalId":20203,"journal":{"name":"Placenta","volume":"160 ","pages":"Pages 39-50"},"PeriodicalIF":3.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142932475","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
PlacentaPub Date : 2025-02-01DOI: 10.1016/j.placenta.2024.10.060
Karolina Radziun , Michael Nevels , David Turner , Aras Kadioglu , Marie Yang
{"title":"Human differentiated and undifferentiated trophoblast organoids as a novel model for human cytomegalovirus congenital infection","authors":"Karolina Radziun , Michael Nevels , David Turner , Aras Kadioglu , Marie Yang","doi":"10.1016/j.placenta.2024.10.060","DOIUrl":"10.1016/j.placenta.2024.10.060","url":null,"abstract":"","PeriodicalId":20203,"journal":{"name":"Placenta","volume":"160 ","pages":"Page 155"},"PeriodicalIF":3.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143375840","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
PlacentaPub Date : 2025-02-01DOI: 10.1016/j.placenta.2024.10.033
Teresa Tropea , Paul Brownbill , Anthony M. Heagerty , Jenny E. Myers
{"title":"Nebivolol induced relaxation of human chorionic plate arteries is dependent on the NOS/NO/SGC pathway","authors":"Teresa Tropea , Paul Brownbill , Anthony M. Heagerty , Jenny E. Myers","doi":"10.1016/j.placenta.2024.10.033","DOIUrl":"10.1016/j.placenta.2024.10.033","url":null,"abstract":"","PeriodicalId":20203,"journal":{"name":"Placenta","volume":"160 ","pages":"Page 146"},"PeriodicalIF":3.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143376872","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
PlacentaPub Date : 2025-02-01DOI: 10.1016/j.placenta.2024.12.028
Xinyi Sun , Jiayi Wan , Yi Zhang , Ye Shen , Yunhui Tang , Yongxiang Yin , Lawrence W. Chamley , Min Zhao , Qi Chen
{"title":"Placental extracellular vesicles induce ovarian tumour cell death in an ex vivo explant model: Possible therapeutic potential","authors":"Xinyi Sun , Jiayi Wan , Yi Zhang , Ye Shen , Yunhui Tang , Yongxiang Yin , Lawrence W. Chamley , Min Zhao , Qi Chen","doi":"10.1016/j.placenta.2024.12.028","DOIUrl":"10.1016/j.placenta.2024.12.028","url":null,"abstract":"<div><h3>Introduction</h3><div>Placental extracellular vesicles (EVs), lipid-enclosed particles released from the placenta, can facilitate intercellular communication and are classified as micro- or nano-EVs depending on size. Placental EVs contain molecules associated with cell proliferation and death. In this study, we investigated whether treating human ovarian tumour explants with placental EVs could induce ovarian tumour cell death.</div></div><div><h3>Methods</h3><div>Human ovarian tumours were collected. After directly treating human ovarian tumour explants with placental EVs, cellular necrosis was observed in ovarian tumour explants by HE stains. Cell death-associated miRNAs were measured.</div></div><div><h3>Results</h3><div>Expression of apoptosis and senescence-associated proteins, including NF-<span><math><mrow><mi>κ</mi><mi>β</mi></mrow></math></span> and <span><math><mrow><mi>γ</mi></mrow></math></span> H2AX, were significantly increased, while proliferation-associated proteins were significantly reduced in the explants after exposure to placental EVs. Furthermore, miRNA-519a-5p, miRNA-512–3p and miRNA-143–3p, which were reported to promote ovarian cancer cell apoptosis or inhibition of ovarian cancer cell growth, were significantly increased, and the target genes of miRNA-519a-5p and miRNA-512–3p were significantly reduced in the explants after exposure to placental EVs. Transfection of SK-OV-3 ovarian cancer cells with a mimic of miRNA-519a-5p or miRNA-143–3p reduced the viability of these cells.</div></div><div><h3>Discussion</h3><div>Our study demonstrated that placental EVs could induce necrosis in ovarian tumour explants. Increased levels of apoptosis and senescence-associated proteins and miRNAs could contribute to this change in ovarian tumour cell phenotype after exposure to placental EVs.</div></div>","PeriodicalId":20203,"journal":{"name":"Placenta","volume":"160 ","pages":"Pages 20-28"},"PeriodicalIF":3.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142927593","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}