Long non-coding RNA TLR8-AS1 induces preeclampsia through increasing TLR8/STAT1 axis.

Abstract

OBJECTIVE:

Our current study tried to assay the role of long noncoding RNAs (lncRNAs) TLR8-AS1 in regulating preeclampsia.

METHODS:

TLR8-AS1 expression was examined in the clinical placental tissues of preeclampsia patients and the trophoblast cells induced by lipopolysaccharide (LPS). Then, different lentivirus was infected into trophoblast cells to study the role of TLR8-AS1 in cell functions. Furthermore, interactions among TLR8-AS1, signal transducer and activator of transcription 1 (STAT1) and toll-like receptor 8 (TLR8) were determined. A rat model of preeclampsia induced by N(omega)-nitro-L-arginine methyl ester was developed to validate the in-vitro findings.

RESULTS:

High expression of TLR8-AS1 was detected in placental tissues of preeclampsia patients and LPS-induced trophoblast cells. In addition, overexpression of TLR8-AS1 arrested the proliferation, migration and invasion of trophoblast cells, which was related to the upregulation of TLR8 expression. Mechanistically, TLR8-AS1 recruited STAT1 to bind to the TLR8 promoter region, and thus promoted the transcription of TLR8. Meanwhile, overexpression of TLR8-AS1 was shown to aggravate preeclampsia by elevating TLR8 in vivo .

CONCLUSION:

Our study confirmed that TLR8-AS1 aggravated the progression of preeclampsia through increasing the expression of STAT1 and TLR8.

• Authors: Chuyu Peng, Jianbin Zhu, Hong Guo, Ling Zhao, Feifei Wu, Bo Liu
• Journal: Journal of hypertension (J Hypertens) Vol. 41 Issue 8 Pg. 1245-1257 (08 01 2023) ISSN: 1473-5598 [Electronic] Netherlands
• PMID: 37199563 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
• Copyright: Copyright © 2023 Wolters Kluwer Health, Inc. All rights reserved.

Chemical References

• Lipopolysaccharides
• MicroRNAs
• RNA, Long Noncoding
• STAT1 protein, human
• STAT1 Transcription Factor
• TLR8 protein, human
• Toll-Like Receptor 8
• Stat1 protein, rat

Topics

• Animals
• Female
• Humans
• Pregnancy
• Rats
• Cell Line, Tumor
• Cell Movement (genetics)
• Cell Proliferation
• Lipopolysaccharides (metabolism)
• MicroRNAs (genetics)
• Placenta (metabolism)
• Pre-Eclampsia (genetics, metabolism)
• RNA, Long Noncoding (genetics, metabolism)
• STAT1 Transcription Factor (genetics, metabolism)
• Toll-Like Receptor 8 (genetics, metabolism)