WTAP dysregulation‐mediated HMGN3‐m6A modification inhibited trophoblast invasion in early‐onset preeclampsia

Early‐onset preeclampsia (ePE) originates from abnormal implantation and placentation that involves trophoblast invasion, but its pathophysiology is not entirely understood. N6‐methyladenosine (m6A) regulators mediate the progression of various cancers. The invasiveness of trophoblast cells is simil...

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Veröffentlicht in:The FASEB journal 2022-12, Vol.36 (12), p.e22617-n/a
Hauptverfasser: Bian, Yue, Li, Jiapo, Shen, Hongfei, Li, Yuanyuan, Hou, Yue, Huang, Ling, Song, Guiyu, Qiao, Chong
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container_start_page e22617
container_title The FASEB journal
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creator Bian, Yue
Li, Jiapo
Shen, Hongfei
Li, Yuanyuan
Hou, Yue
Huang, Ling
Song, Guiyu
Qiao, Chong
description Early‐onset preeclampsia (ePE) originates from abnormal implantation and placentation that involves trophoblast invasion, but its pathophysiology is not entirely understood. N6‐methyladenosine (m6A) regulators mediate the progression of various cancers. The invasiveness of trophoblast cells is similar to that of tumor cells. However, little is known regarding the potential role of m6A modification in ePE and the underlying mechanism. This study aimed to explore the m6A level in placental tissue samples collected from ePE patients and to investigate whether m6A modification was an essential part of PE pathogenesis. The m6A level in placental tissue samples of 80 PE participants was examined. MeRIP‐microarray, RNA‐Seq, luciferase reporter assay, and RNA immunoprecipitation chip (RIP) assay were performed. The m6A level in the ePE group was significantly reduced compared with the control group. Wilms' tumor 1‐associating protein (WTAP) regulated trophoblast cell migration and invasion. Mechanistically, the high mobility group nucleosomal binding domain 3 (HMGN3) gene was a target gene of WTAP in trophoblast (p 
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N6‐methyladenosine (m6A) regulators mediate the progression of various cancers. The invasiveness of trophoblast cells is similar to that of tumor cells. However, little is known regarding the potential role of m6A modification in ePE and the underlying mechanism. This study aimed to explore the m6A level in placental tissue samples collected from ePE patients and to investigate whether m6A modification was an essential part of PE pathogenesis. The m6A level in placental tissue samples of 80 PE participants was examined. MeRIP‐microarray, RNA‐Seq, luciferase reporter assay, and RNA immunoprecipitation chip (RIP) assay were performed. The m6A level in the ePE group was significantly reduced compared with the control group. Wilms' tumor 1‐associating protein (WTAP) regulated trophoblast cell migration and invasion. Mechanistically, the high mobility group nucleosomal binding domain 3 (HMGN3) gene was a target gene of WTAP in trophoblast (p &lt; .05). WTAP enhanced the stability of HMGN3 mRNA through binding with its 3’‐UTR m6A site(+485A, +522A). HMGN3 was recognized by m6A recognition protein insulin‐like growth factor 2 mRNA‐binding protein 1 (IGF2BP1), which was inhibited when knocking down WTAP. Both m6A and WTAP levels were downregulated in ePE. The m6A modification mediated by WTAP/IGF2BP1/HMGN3 axis might contribute to abnormal trophoblast invasion. Our work provided a foundation for further exploration of RNA epigenetic regulatory patterns in ePE, and indicated a new treatment strategy for ePE.</description><identifier>ISSN: 0892-6638</identifier><identifier>EISSN: 1530-6860</identifier><identifier>DOI: 10.1096/fj.202200700RR</identifier><identifier>PMID: 36412513</identifier><language>eng</language><publisher>United States</publisher><subject>Cell Cycle Proteins - metabolism ; early‐onset preeclampsia ; Female ; Humans ; N6‐methyladenosine ; Placenta - metabolism ; Pre-Eclampsia - genetics ; preeclampsia ; Pregnancy ; RNA - metabolism ; RNA Splicing Factors ; RNA, Messenger - genetics ; trophoblast ; Trophoblasts - metabolism ; WTAP</subject><ispartof>The FASEB journal, 2022-12, Vol.36 (12), p.e22617-n/a</ispartof><rights>2022 The Authors. published by Wiley Periodicals LLC on behalf of Federation of American Societies for Experimental Biology.</rights><rights>2022 The Authors. 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WTAP enhanced the stability of HMGN3 mRNA through binding with its 3’‐UTR m6A site(+485A, +522A). HMGN3 was recognized by m6A recognition protein insulin‐like growth factor 2 mRNA‐binding protein 1 (IGF2BP1), which was inhibited when knocking down WTAP. Both m6A and WTAP levels were downregulated in ePE. The m6A modification mediated by WTAP/IGF2BP1/HMGN3 axis might contribute to abnormal trophoblast invasion. 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subjects Cell Cycle Proteins - metabolism
early‐onset preeclampsia
Female
Humans
N6‐methyladenosine
Placenta - metabolism
Pre-Eclampsia - genetics
preeclampsia
Pregnancy
RNA - metabolism
RNA Splicing Factors
RNA, Messenger - genetics
trophoblast
Trophoblasts - metabolism
WTAP
title WTAP dysregulation‐mediated HMGN3‐m6A modification inhibited trophoblast invasion in early‐onset preeclampsia
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