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Wan P, Huang J, Liu W, Su X, Zhao B, Wang X, Zhao L. lncRNA GHET1 regulates extravillous trophoblastic phenotype via EZH2/LSD1-mediated MT2A epigenetic suppression in pre-eclampsia. Mol Reprod Dev 2023; 90:758-770. [PMID: 37548351 DOI: 10.1002/mrd.23693] [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] [Received: 03/09/2023] [Revised: 05/17/2023] [Accepted: 06/06/2023] [Indexed: 08/08/2023]
Abstract
Pre-eclampsia (PE) is usually defined as new-onset hypertension with albuminuria or other organ damage. Herein, the role and mechanism of long noncoding RNA (lncRNA) gastric carcinoma high expressed transcript 1 (GHET1) during PE are investigated. Expression of GHET1 in PE pregnancies was evaluated using quantitative real-time polymerase chain reaction (qRT-PCR). Proliferation and cell cycle of extravillous trophoblasts were assessed by Cell Counting Kit-8 (CCK-8), colony formation, 5-Ethynyl-2'-deoxyuridine (EdU) assays, and flow cytometry, respectively. Migration, invasion, and network formation of trophoblasts were measured by wound healing, transwell system, and tube formation assays. RNA immunoprecipitation (RIP), RNA pull-down, and chromatin immunoprecipitation (ChIP) assays were used to confirm the molecular interaction. GHET1 was markedly decreased in the placenta of PE patients. GHET1 promoted the proliferation and cell cycle of extravillous trophoblasts, as well as migration, invasion, and network formation in vitro. Metallothionein 2A (MT2A) functioned as a downstream effector of GHET1, which was negatively correlated with GHET1 in PE. GHET1 directly bound with zeste 2 polycomb repressive complex 2/lysine-specific demethylase 1 (EZH2/LSD1). Knockdown of GHET1 reduced the occupancies of H3K27me3 and H3K4me2 in the MT2A promoter region by recruiting EZH2 and LSD1. MT2A knockdown reversed GHET1 inhibition mediated biological functions. GHET1 regulates extravillous trophoblastic phenotype via EZH2/LSD1-mediated MT2A epigenetic suppression in PE.
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Affiliation(s)
- Pengyun Wan
- Department of Obstetrics and Gynecology, Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi Province, People's Republic of China
| | - Jia Huang
- Reproductive Health Department, Jiangxi Provincial Maternal and Child Health Hospital, Nanchang, Jiangxi Province, People's Republic of China
| | - Wenting Liu
- Department of Obstetrics and Gynecology, Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi Province, People's Republic of China
| | - Xiaoyan Su
- Pathology Department, Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi Province, People's Republic of China
| | - Bei Zhao
- Traditional Chinese Medicine Department, Duchang County People's Hospital, Jiujiang, Jiangxi Province, People's Republic of China
| | - Xianggang Wang
- Medical Examination Department, Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi Province, People's Republic of China
| | - Lu Zhao
- Department of Obstetrics and Gynecology, Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi Province, People's Republic of China
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Luo X, Gao Q, Zhou T, Tang R, Zhao Y, Zhang Q, Wang N, Ye H, Chen X, Chen S, Tang W, Zhao D. FOXP4-AS1 Inhibits Papillary Thyroid Carcinoma Proliferation and Migration Through the AKT Signaling Pathway. Front Oncol 2022; 12:900836. [PMID: 35720005 PMCID: PMC9202991 DOI: 10.3389/fonc.2022.900836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 04/07/2022] [Indexed: 12/24/2022] Open
Abstract
Papillary thyroid carcinoma, also known as PTC, is one of the commonest malignancies in the endocrine system. Long non-coding RNAs (lncRNAs) in PTC could maintain proliferative signaling, induce therapeutic resistance, activate invasion and migration, and sustain stem cell-like characteristics. In this paper, results showed that lncRNA forkhead box P4 antisense RNA 1 (FOXP4-AS1) is downregulated in PTC tissues and cell lines. Patients in TCGA cohort with a higher FOXP4-AS1 expression showed a higher disease-free interval (DFI) rate, and the expression of FOXP4-AS1 is shown to be linked to the clinical stage, T stage, N stage, and extraglandular invasion condition of the TC patients. FOXP4-AS1 is localized in the cell cytoplasmic domain of PTC cells. Functionally, upregulated FOXP4-AS1 inhibited PTC cell proliferation, apoptosis, and migration, whereas it downregulated FOXP4-AS1-promoted progression of PTC. In vivo assay also confirmed the tumor inhibitory effect of FOXP4-AS1 in PTC growth. Mechanism analysis indicated that FOXP4-AS1 can play its functions by regulating the AKT signaling pathway, and AKT inhibitor treatment could attenuate the impact of FOXP4-AS1 on PTC progression. Furthermore, FOXP4-AS1 also negatively regulates the expression of its host gene FOXP4. Collectively, we showed that FOXP4-AS1 inhibited PTC progression although AKT signaling and FOXP4-AS1 plays a tumor-suppressor role in PTC tumorigenesis.
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Affiliation(s)
- Xue Luo
- Clinical Medical College, Guizhou Medical University, Guiyang, China.,Department of Thyroid Surgery, Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Qingjun Gao
- Department of Thyroid Surgery, Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Tian Zhou
- Department of Breast Surgery, Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Rui Tang
- Department of Thyroid and Breast Surgery, Bijie City First People's Hospital, Bijie, China
| | - Yu Zhao
- Department of Thyroid and Breast Surgery, Qian Xi Nan People's Hospital, Xingyi, China
| | - Qifang Zhang
- Key Laboratory of Endemic and Ethnic Minority Diseases of the Ministry of Education, Guizhou Medical University, Guiyang, China
| | - Nanpeng Wang
- Department of Thyroid Surgery, Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Hui Ye
- Department of Thyroid Surgery, Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Xinghong Chen
- Clinical Medical College, Guizhou Medical University, Guiyang, China
| | - Song Chen
- Department of Thyroid and Breast Surgery, Jinyang Hospital Affiliated to Guizhou Medical University, Guiyang, China
| | - Wenli Tang
- Department of Thyroid Surgery, Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Daiwei Zhao
- Clinical Medical College, Guizhou Medical University, Guiyang, China.,Department of Thyroid Surgery, the Second People's Hospital of Guizhou Province, Guiyang, China
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