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Xu Z, Guo Y, Wang L, Cui J. HECW1 restrains cervical cancer cell growth by promoting DVL1 ubiquitination and downregulating the activation of Wnt/β-catenin signaling. Exp Cell Res 2024; 435:113949. [PMID: 38266865 DOI: 10.1016/j.yexcr.2024.113949] [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: 11/14/2023] [Revised: 01/17/2024] [Accepted: 01/21/2024] [Indexed: 01/26/2024]
Abstract
HECW1 belongs to ubiquitin ligase (E3) HECT family, and is found to be involved in tumorigenesis and tumor progression. However, the function of HECW1 in cervical cancer (CC) remains unknown. Clinical analysis showed that HECW1 is significantly decreased in CC tumor tissues. Ectopic expression of HECW1 suppressed cell growth, promoting cell cycle arrest and apoptosis in CC cells, while downregulation of HECW1 reversed these trends, impeded proliferation and accelerated cell cycle progression of CC cells. Overexpressing of HECW1 reduced mitochondrial membrane potential and the protein expression of voltage-dependent anion channel 1 (VDAC1). In addition, upregulation of HECW1 inhibited nuclear β-catenin accumulation, downregulated β-catenin/TCF/LEF-mediated transcriptional activity and the expression of downstream gene c-Myc, whereas inhibition of HECW1 received opposite results. Further results confirmed HECW1 affects the protein expression of dishevelled-1 (DVL1), a potent activator of Wnt/β-catenin, and inhibition of HECW1 inhibited the ubiquitination of DVL1, upregulating its expression. Inhibition of DVL1 restrained the promotion effect of HECW1 suppression on cell proliferation. In vivo experiments also verified that HECW1 suppression promoted the tumor formation of CC cells. Summary, we demonstrated that HECW1 inhibits CC cell proliferation and tumor formation by downregulating DVL1 induced Wnt/β-catenin signaling pathway activation.
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Affiliation(s)
- Zhen Xu
- Department of Gynecology, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China; Henan Gynecological Diseases (Gynecology Oncology) Clinical Research Center, Zhengzhou, Henan, China
| | - Yilin Guo
- Henan Gynecological Diseases (Gynecology Oncology) Clinical Research Center, Zhengzhou, Henan, China
| | - Lu Wang
- Henan Gynecological Diseases (Gynecology Oncology) Clinical Research Center, Zhengzhou, Henan, China
| | - Jinquan Cui
- Department of Gynecology, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China.
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RING Finger Protein 10 Regulates AP-1/Meox2 to Mediate Pirarubicin-Induced Cardiomyocyte Apoptosis. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2023; 2023:7872193. [PMID: 36713029 PMCID: PMC9883094 DOI: 10.1155/2023/7872193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 10/12/2022] [Accepted: 11/25/2022] [Indexed: 01/21/2023]
Abstract
Pirarubicin (THP) is one of the classic chemotherapy drugs for cancer treatment. It is often clinically limited because of its cardiotoxicity. The occurrence and development of THP-mediated chemotherapy-related cardiotoxicity (CRC) may be reversed by RING finger protein 10 (RNF10). This study was performed with the aim of evaluating the inhibitory effect of RNF10 on THP-mediated CRC and its molecular mechanism. In vivo, we found that the expression of RNF10 decreased in THP-induced CRC rats, accompanied by Meox2 inhibition and AP-1 activation, resulting in increased cardiomyocyte apoptosis. After small interfering RNA (siRNA) and lentivirus transfection (Lv) of RNF10 in vitro, the expression of RNF10, Meox2, and AP-1 proteins and the degree of cardiomyocyte apoptosis were detected. We found that overexpression of RNF10 in H9C2 cardiomyocytes significantly promoted Meox2 and inhibited AP-1, alleviated apoptosis, and showed further inhibitory activity on THP-induced cardiomyocyte toxicity. Silencing RNF10 showed the opposite result. Our study showed that RNF10 inhibited THP-induced CRC through the activity of Meox2 and AP-1 proteins. RNF10 may be the next drug target for the treatment of CRC and other related cardiovascular diseases.
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Haouari S, Andres CR, Lanznaster D, Marouillat S, Brulard C, Dangoumau A, Ung D, Veyrat-Durebex C, Laumonnier F, Blasco H, Couratier P, Corcia P, Vourc’h P. Study of Ubiquitin Pathway Genes in a French Population with Amyotrophic Lateral Sclerosis: Focus on HECW1 Encoding the E3 Ligase NEDL1. Int J Mol Sci 2023; 24:ijms24021268. [PMID: 36674783 PMCID: PMC9867363 DOI: 10.3390/ijms24021268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 12/28/2022] [Accepted: 01/02/2023] [Indexed: 01/10/2023] Open
Abstract
The ubiquitin pathway, one of the main actors regulating cell signaling processes and cellular protein homeostasis, is directly involved in the pathophysiology of amyotrophic lateral sclerosis (ALS). We first analyzed, by a next-generation sequencing (NGS) strategy, a series of genes of the ubiquitin pathway in two cohorts of familial and sporadic ALS patients comprising 176 ALS patients. We identified several pathogenic variants in different genes of this ubiquitin pathway already described in ALS, such as FUS, CCNF and UBQLN2. Other variants of interest were discovered in new genes studied in this disease, in particular in the HECW1 gene. We have shown that the HECT E3 ligase called NEDL1, encoded by the HECW1 gene, is expressed in neurons, mainly in their somas. Its overexpression is associated with increased cell death in vitro and, very interestingly, with the cytoplasmic mislocalization of TDP-43, a major protein involved in ALS. These results give new support for the role of the ubiquitin pathway in ALS, and suggest further studies of the HECW1 gene and its protein NEDL1 in the pathophysiology of ALS.
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Affiliation(s)
- Shanez Haouari
- UMR 1253 iBrain, Université de Tours, Inserm, 10 Boulevard Tonnellé, 37032 Tours, France
| | - Christian Robert Andres
- UMR 1253 iBrain, Université de Tours, Inserm, 10 Boulevard Tonnellé, 37032 Tours, France
- Service de Biochimie et Biologie Moléculaire, CHU de Tours, 2 Boulevard Tonnellé, 37044 Tours, France
| | - Debora Lanznaster
- UMR 1253 iBrain, Université de Tours, Inserm, 10 Boulevard Tonnellé, 37032 Tours, France
| | - Sylviane Marouillat
- UMR 1253 iBrain, Université de Tours, Inserm, 10 Boulevard Tonnellé, 37032 Tours, France
| | - Céline Brulard
- UMR 1253 iBrain, Université de Tours, Inserm, 10 Boulevard Tonnellé, 37032 Tours, France
| | - Audrey Dangoumau
- UMR 1253 iBrain, Université de Tours, Inserm, 10 Boulevard Tonnellé, 37032 Tours, France
| | - Devina Ung
- UMR 1253 iBrain, Université de Tours, Inserm, 10 Boulevard Tonnellé, 37032 Tours, France
| | - Charlotte Veyrat-Durebex
- UMR 1253 iBrain, Université de Tours, Inserm, 10 Boulevard Tonnellé, 37032 Tours, France
- Service de Biochimie et Biologie Moléculaire, CHU de Tours, 2 Boulevard Tonnellé, 37044 Tours, France
| | - Frédéric Laumonnier
- UMR 1253 iBrain, Université de Tours, Inserm, 10 Boulevard Tonnellé, 37032 Tours, France
| | - Hélène Blasco
- UMR 1253 iBrain, Université de Tours, Inserm, 10 Boulevard Tonnellé, 37032 Tours, France
- Service de Biochimie et Biologie Moléculaire, CHU de Tours, 2 Boulevard Tonnellé, 37044 Tours, France
| | - Philippe Couratier
- Centre SLA, CHU Limoges, 2 Avenue Martin Luther King, 87000 Limoges, France
| | - Philippe Corcia
- UMR 1253 iBrain, Université de Tours, Inserm, 10 Boulevard Tonnellé, 37032 Tours, France
- Centre SLA, CHU Tours, 2 Boulevard Tonnellé, 37044 Tours, France
| | - Patrick Vourc’h
- UMR 1253 iBrain, Université de Tours, Inserm, 10 Boulevard Tonnellé, 37032 Tours, France
- Service de Biochimie et Biologie Moléculaire, CHU de Tours, 2 Boulevard Tonnellé, 37044 Tours, France
- Correspondence: ; Tel.: +33-234378910
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Jia X, Huang J, Wu B, Yang M, Xu W. A Competitive Endogenous RNA Network Based on Differentially Expressed lncRNA in Lipopolysaccharide-Induced Acute Lung Injury in Mice. Front Genet 2021; 12:745715. [PMID: 34917127 PMCID: PMC8669720 DOI: 10.3389/fgene.2021.745715] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 10/14/2021] [Indexed: 12/03/2022] Open
Abstract
Non-coding RNAs have remarkable roles in acute lung injury (ALI) initiation. Nevertheless, the significance of long non-coding RNAs (lncRNAs) in ALI is still unknown. Herein, we purposed to identify potential key genes in ALI and create a competitive endogenous RNA (ceRNA) modulatory network to uncover possible molecular mechanisms that affect lung injury. We generated a lipopolysaccharide-triggered ALI mouse model, whose lung tissue was subjected to RNA sequencing, and then we conducted bioinformatics analysis to select genes showing differential expression (DE) and to build a lncRNA-miRNA (microRNA)- mRNA (messenger RNA) modulatory network. Besides, GO along with KEGG assessments were conducted to identify major biological processes and pathways, respectively, involved in ALI. Then, RT-qPCR assay was employed to verify levels of major RNAs. A protein-protein interaction (PPI) network was created using the Search Tool for the Retrieval of Interacting Genes (STRING) database, and the hub genes were obtained with the Molecular Complex Detection plugin. Finally, a key ceRNA subnetwork was built from major genes and their docking sites. Overall, a total of 8,610 lncRNAs were identified in the normal and LPS groups. Based on the 308 DE lncRNAs [p-value < 0.05, |log2 (fold change) | > 1] and 3,357 DE mRNAs [p-value < 0.05, |log2 (fold change) | > 1], lncRNA-miRNA and miRNA-mRNA pairs were predicted using miRanda. The lncRNA-miRNA-mRNA network was created from 175 lncRNAs, 22 miRNAs, and 209 mRNAs in ALI. The RT-qPCR data keep in step with the RNA sequencing data. GO along with KEGG analyses illustrated that DE mRNAs in this network were mainly bound up with the inflammatory response, developmental process, cell differentiation, cell proliferation, apoptosis, and the NF-kappa B, PI3K-Akt, HIF-1, MAPK, Jak-STAT, and Notch signaling pathways. A PPI network on the basis of the 209 genes was established, and three hub genes (Nkx2-1, Tbx2, and Atf5) were obtained from the network. Additionally, a lncRNA-miRNA-hub gene subnetwork was built from 15 lncRNAs, 3 miRNAs, and 3 mRNAs. Herein, novel ideas are presented to expand our knowledge on the regulation mechanisms of lncRNA-related ceRNAs in the pathogenesis of ALI.
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Affiliation(s)
- Xianxian Jia
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Jinhui Huang
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Bo Wu
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Miao Yang
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Wei Xu
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, China
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Zang S, Yin X, Li P. Downregulation of TTF1 in the rat hypothalamic ARC or AVPV nucleus inhibits Kiss1 and GnRH expression, leading to puberty delay. Reprod Biol Endocrinol 2021; 19:30. [PMID: 33622350 PMCID: PMC7901190 DOI: 10.1186/s12958-021-00710-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Accepted: 02/12/2021] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND TTF1 is a transcription factor that is expressed in the hypothalamus after birth and plays crucial roles in pubertal development. TTF1 may regulate the expression of the Kiss1 gene, which may drive puberty onset in the hypothalamic arcuate (ARC) and anterior ventral paraventricular (AVPV) nuclei. METHODS A dual-luciferase reporter assay was used to detect binding between TTF1 and the Kiss1 gene promoter. To investigate the effects of TTF1, we modified TTF1 expression in cell lines and in the ARC or AVPV nucleus of 21-day-old female rats via lentivirus infection. TTF1 and other puberty onset-related genes were detected by qRT-PCR and western blot analyses. RESULTS The in vitro data indicated that TTF1 knockdown (KD) significantly reduced Kiss1 and GnRH expression. Overexpression (OE) of TTF1 promoted Kiss1 expression. In vivo, the expression of Kiss1 and GnRH decreased significantly in the rats with hypothalamic ARC- or AVPV-specific TTF1 KD. The TTF1-KD rats showed vaginal opening delay. H&E staining revealed that the corpus luteum was obviously reduced at the early puberty and adult stages in the rats with ARC- or AVPV-specific TTF1 KD. CONCLUSION TTF1 bound to the promoter of the Kiss1 gene and enhanced its expression. For 21-day-old female rats, decreased TTF1 in the hypothalamic ARC or AVPV nucleus resulted in delayed vaginal opening and ovarian abnormalities. These observations suggested that TTF1 regulates puberty onset by promoting the expression of Kiss1 and plays an important role in gonad development.
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Affiliation(s)
- Shaolian Zang
- Department of Endocrinology, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, 200062, People's Republic of China
| | - Xiaoqin Yin
- Department of Endocrinology, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, 200062, People's Republic of China
| | - Pin Li
- Department of Endocrinology, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, 200062, People's Republic of China.
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