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Chen T, Gu Y, Bai GH, Liu X, Chen B, Fan Q, Liu JG, Tian Y. MiR-1a-3p Inhibits Apoptosis in Fluoride-exposed LS8 Cells by Targeting Map3k1. Biol Trace Elem Res 2024; 202:2720-2729. [PMID: 37782397 PMCID: PMC11052812 DOI: 10.1007/s12011-023-03869-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Accepted: 09/13/2023] [Indexed: 10/03/2023]
Abstract
Dental fluorosis is a common chemical disease. It is currently unclear how fluorosis occurs at the molecular level. We used miRNA-seq to look at the differences between miRNAs in the cell line of ameloblasts LS8 that had been treated with 3.2 mmol/L NaF. We also performed gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analyses. miR-1a-3p levels were significantly lower in mouse LS8 cells treated with 3.2 mmol/L NaF, and miR-1a-3p-targeted genes were significantly enriched in the MAPK pathway. LS8 cells were divided into four groups: control, NaF, NaF+miR-1a-3p mimics, and NaF+miR-1a-3p mimics normal control groups. Cellular morphology was observed by an inverted microscope, and the proliferation activity of LS8 cells was assessed by Cell Counting Kit-8 (CCK-8). Using the real-time quantitative polymerase chain reaction (RT-qPCR), transcription levels of miR-1a-3p and Map3k1 were detected. The expressions of Bax, Bcl-2, Map3k1, p38MAPK, ERK1/2, p-p38MAPK, and p-ERK1/2 were measured by Western blot. After bioinformatics analysis, we used a luciferase reporter assay (LRA) to validate the target of miR-1a-3p, showing that miR-1a-3p could inhibit apoptosis while increasing proliferation in fluoride-exposed LS8 cells. Generally, miR-1a-3p might directly inhibit Map3k1, reduce MAPK signal pathway activation, and promote phosphorylation. Thus, our findings revealed that the interaction of miR-1a-3p with its target gene Map3k1 and MAPK signal pathway might decrease the apoptosis of LS8 cells treated with 3.2 mmol/L NaF.
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Affiliation(s)
- Ting Chen
- Key Laboratory of Oral Disease Research, School of Stomatology, Zunyi Medical University, Zunyi, 563000, China
- Loudi Central Hospital, Loudi, China
| | - Yu Gu
- Key Laboratory of Oral Disease Research, School of Stomatology, Zunyi Medical University, Zunyi, 563000, China
| | - Guo-Hui Bai
- Key Laboratory of Oral Disease Research, School of Stomatology, Zunyi Medical University, Zunyi, 563000, China
| | - Xia Liu
- Key Laboratory of Oral Disease Research, School of Stomatology, Zunyi Medical University, Zunyi, 563000, China
| | - Bin Chen
- Key Laboratory of Oral Disease Research, School of Stomatology, Zunyi Medical University, Zunyi, 563000, China
| | - Qin Fan
- Key Laboratory of Oral Disease Research, School of Stomatology, Zunyi Medical University, Zunyi, 563000, China
| | - Jian-Guo Liu
- Key Laboratory of Oral Disease Research, School of Stomatology, Zunyi Medical University, Zunyi, 563000, China
| | - Yuan Tian
- Key Laboratory of Oral Disease Research, School of Stomatology, Zunyi Medical University, Zunyi, 563000, China.
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Human umbilical cord blood mesenchymal stem cells-derived exosomal microRNA-503-3p inhibits progression of human endometrial cancer cells through downregulating MEST. Cancer Gene Ther 2022; 29:1130-1139. [PMID: 34997218 DOI: 10.1038/s41417-021-00416-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 10/25/2021] [Accepted: 12/08/2021] [Indexed: 11/08/2022]
Abstract
Endometrial cancer (EC) is a group of epithelial malignant tumors that occur in the endometrium. The specific pathogenesis is not revealed, hence, the goal of this study was to investigate the influence of human umbilical cord blood mesenchymal stem cells (hUMSCs)-derived exosomal microRNA-503-3p (miR-503-3p) on human EC cells by mediating mesoderm-specific transcript (MEST). The binding relationship between MiR-503-3p and MEST was searched. HUMSCs were collected and exosomes (Exos) were isolated and identified. Human EC cell lines HEC-1B and RL95-2 were transfected with elevated miR-503-3p or silenced MEST vector or co-cultured with Exos to figure their roles in biological functions of EC cells. The in vitro effect of miR-503-3p, MEST, and Exos on EC cells was further verified in vivo. MEST was a target of miR-503-3p. Overexpression of miR-503-3p or reduction of MEST suppressed the biological functions of EC cells. Enhanced MEST expression mitigated the role of upregulated miR-503-3p on the growth of EC cells. HUMSCs-derived Exos suppressed EC cell growth, upregulated miR-503-3p-modified HUMSCs-derived Exos had a more obvious inhibitory effect on EC cell growth. The anti-tumor effect of elevated miR-503-3p, silenced MEST, and HUMSCs-derived Exos were verified in nude mice. This study highlights that hUMSCs-derived exosomal miR-503-3p inhibits EC development by suppressing MEST, which is of great benefit to EC therapy.
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Luo Y, Da D, Weng Q, Yao S, Zhang H, Han X, Zhang Y. miR-296-5p promotes autophagy in mouse LS8 cells under excessive fluoride via AMPK/ULK1 pathways. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 235:113362. [PMID: 35306215 DOI: 10.1016/j.ecoenv.2022.113362] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 02/16/2022] [Accepted: 02/25/2022] [Indexed: 06/14/2023]
Abstract
Numerous microRNAs participate in regulating the pathological process of autophagy. We have found miR-296-5p is one of the most significantly down-regulated microRNAs in a high concentration of sodium fluoride. However, it is not clear whether miR-296-5p augments autophagy in dental fluorosis. Our purpose is to explore the function of miR-296-5p in regulating autophagy of excessive fluoride development. Thus, the cell line of ameloblasts LS8 was exposed to a 1.5 mM dose of NaF and miR-296-5p-mimics, Real-time qPCR, CCK-8 assays, Fluorescence imaging and Western blot analysis were performed. Autophagy was observed. As our results indicated, miR-296-5p overexpression in mouse LS8 cells significantly accelerated autophagy. The autophagy inhibition effect of miR-296-5p underexpression was consistent with the effect of the AMPK inhibitor. And we found that the expression of LC3II was decreased via down-regulation of AMPK. The change of ULK1 by miR-296-5p may be accomplished through AMPK. Thus, miR-296-5p may improve the secretion of autophagic mediators by activating AMPK/ULK1 expression in fluorosis, suggesting that miR-296-5p, AMPK/ULK1 may be potential therapeutic targets under the higher fluoride stimulation.
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Affiliation(s)
- Yinyue Luo
- Department of Preventive Dentistry, Shanghai Stomatological Hospital, Fudan University, China; Shanghai Key Laboratory of Craniomaxillofacial Development and Diseases, Fudan University, China
| | - Dongxin Da
- Department of Preventive Dentistry, Shanghai Stomatological Hospital, Fudan University, China; Shanghai Key Laboratory of Craniomaxillofacial Development and Diseases, Fudan University, China
| | - Qingqing Weng
- Department of Preventive Dentistry, Shanghai Stomatological Hospital, Fudan University, China; Shanghai Key Laboratory of Craniomaxillofacial Development and Diseases, Fudan University, China
| | - Shuran Yao
- Department of Preventive Dentistry, Shanghai Stomatological Hospital, Fudan University, China; Shanghai Key Laboratory of Craniomaxillofacial Development and Diseases, Fudan University, China
| | - Hao Zhang
- Department of Preventive Dentistry, Shanghai Stomatological Hospital, Fudan University, China; Shanghai Key Laboratory of Craniomaxillofacial Development and Diseases, Fudan University, China
| | - Xinxin Han
- Shanghai Key Laboratory of Craniomaxillofacial Development and Diseases, Fudan University, China
| | - Ying Zhang
- Department of Preventive Dentistry, Shanghai Stomatological Hospital, Fudan University, China; Shanghai Key Laboratory of Craniomaxillofacial Development and Diseases, Fudan University, China.
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Chen Q, Li Z, Xu Z, Chen C, Wang J, Zhu J, Dong Z. miR-378d is Involved in the Regulation of Apoptosis and Autophagy of and E 2 Secretion from Cultured Ovarian Granular Cells Treated by Sodium Fluoride. Biol Trace Elem Res 2021; 199:4119-4128. [PMID: 33405077 DOI: 10.1007/s12011-020-02524-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 11/29/2020] [Indexed: 11/28/2022]
Abstract
Taking excessive sodium fluoride may cause female reproductive dysfunction, but underlying molecular mechanism is unclear. The ovarian granulosa cells are the key endocrine cells releasing reproductive hormones. The miRNAs in the granulosa cells play an important function in regulating reproduction. The aim of this study is to explore the role of miRNAs in granulosa cell apoptosis and autophagy, as well as estradiol (E2) release in response to excessive sodium fluoride. The ovarian granulosa cells (KGN cells) were treated in vitro by different concentrations of sodium fluoride (NaF) for 24 h. The level of estradiol (E2) in the incubation medium was measured by ELISA kits. The total RNA and protein were collected and purified from KGN cells. The expression of miRNAs was detected by the real-time PCR. The signal molecules involved in cell apoptosis and autophagy were detected by the real-time PCR and Western blotting. Six miRNAs in granulosa cells were significantly up- or downregulated by NaF and selected for real-time PCR analysis. The miR-378d was the most significantly upregulated one dose dependently by NaF. It was positively correlated to the extent of apoptosis but negatively correlated to the level of autophagy in KGN cells in response to NaF. In addition, miR-378d promoted E2 release in response to 1 and 2 mM NaF but reduced E2 release in response to 4 and 8 mM NaF treatments. It is concluded that expression of miR-378d in ovarian granulosa cells is negatively correlated to the autophagy and E2 release and positively correlated to cell apoptosis under the influence of NaF.
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Affiliation(s)
- Qun Chen
- Institute of Endemic Diseases, Key Laboratory of Trace Elements and Endemic Diseases, National Health Commission of the People's Republic of China, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, 710061, People's Republic of China.
| | - Zhen Li
- Department of Gynecology and Obstetrics, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Zhao Xu
- School of Chemistry, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Chen Chen
- Endocrinology, School of Biomedical Sciences, Faculty of Medicine, University of Queensland, Brisbane, Queensland, Australia
| | - Jiawei Wang
- Guipei class 84, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, China
| | - Jinyuan Zhu
- Kouqiang class 73, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, China
| | - Zhaoheng Dong
- Shandong Shenghua Electronic New Materials Co., Ltd., Yantai, Shandong, China
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He M, Lyu X. Application of BRAFO-tiered approach for health benefit-risk assessment of dark tea consumption in China. Food Chem Toxicol 2021; 158:112615. [PMID: 34656696 DOI: 10.1016/j.fct.2021.112615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 09/09/2021] [Accepted: 10/12/2021] [Indexed: 11/17/2022]
Abstract
Dark tea, a unique tea fermented primarily in China, has numerous potential beneficial effects. However, harmful substances present in dark tea have provoked significant concern. To conduct a quantitative benefit-risk assessment of dark tea for Chinese residents and provide guidance on rational consumption, a framework of Benefit-Risk Analysis for Foods (BRAFO) and meta-analysis was applied to construct a disability-adjusted life year (DALY). Based on the BRAFO-tiered approach, a reference scenario (no intake) and an alternative scenario (intake of 3 cups/day) were determined. The overall health impacts of dark tea were simulated by comparing the risks of fluoride and AF with benefits of reduced-risk to coronary heart disease (CHD) and diabetes in different scenarios. Three cups of fermented tea consumed per day decreased risks of CHD and diabetes by 8.16% and 12.77% respectively. After quantitative integration of information, the ultimate net health effect was found to be -1958.827 illustrating that the benefits of drinking three cups of dark tea per day outweigh the risks. However, considering the uncertainties in the process, decision-makers should proceed with caution, consulting additional well-conducted studies and further managing harmful substances in dark tea.
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Affiliation(s)
- Mengru He
- Department of Nutrition and Food Hygiene, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, 610041, China
| | - Xiaohua Lyu
- Department of Nutrition and Food Hygiene, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, 610041, China.
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Abbasoglu Z, Dalledone M, Wambier LM, Pecharki G, Baratto-Filho F, Andrades KMR, Scariot R, Trevilatto PC, Brancher JA, Küchler EC. Single nucleotide polymorphism rs4284505 in microRNA17 and risk of dental fluorosis. Acta Odontol Scand 2020; 78:463-466. [PMID: 32619376 DOI: 10.1080/00016357.2020.1786600] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
OBJECTIVES The aim of this study is to evaluate the association between the single nucleotide polymorphism (SNP) rs4284505 within the gene that codifies microRNA17 (miRNA17) and dental fluorosis (DF) in a group of children. METHODS Children living in a city with fluoridation of public water supplies were included. DF was assessed in erupted permanent teeth by Dean's modified index. The miR-SNP rs4284505 was selected in miRNA17 and genotyping was carried out by real-time PCR. Genotype and allelic distributions between DF and control, and between DF phenotypes (mild, moderate and severe) and control were analysed. RESULTS Among a total of 527 children enrolled for the study, 383 were DF free and 144 presented DF. In the dominant model analysis (AA + AG vs. GG) the miR-SNP rs4284505 was associated with moderate DF, with carriers of the GG genotype having an increased risk of more than two times for DF (p = 0.031; Odds Ratio = 2.26, Confidence Interval 95%= 1.04-4.73). Allelic distribution showed borderline statistical significance for moderate DF with the carriers of G allele having an increased risk for DF (p = .050; Odds Ratio = 1.75, Confidence Interval 95%= 1.00-3.12). CONCLUSION The miR-SNP rs4284505 in miRNA17 was associated with an increased risk of DF.
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Affiliation(s)
- Zerrin Abbasoglu
- Department of Pediatric Dentistry, Yeditepe University, Istanbul, Turkey
| | - Mariana Dalledone
- School of Health and Biological Sciences, Universidade Positivo, Curitiba, Brazil
| | - Letícia M. Wambier
- Department of Dentistry, School of Health and Biological Sciences, Universidade Positivo, Curitiba, Brazil
| | - Giovana Pecharki
- Department of Community Health, Federal University of Parana, Curitiba, Brazil
| | - Flares Baratto-Filho
- School of Health and Biological Sciences, Universidade Positivo, Curitiba, Brazil
- School of Dentistry, Univille University, Joinville, Brazil
| | | | - Rafaela Scariot
- School of Health and Biological Sciences, Universidade Positivo, Curitiba, Brazil
| | - Paula C. Trevilatto
- Dental School, Pontifícia Universidade Católica do Paraná (PUC-PR), Curitiba, Brazil
| | - João A. Brancher
- School of Health and Biological Sciences, Universidade Positivo, Curitiba, Brazil
| | - Erika C. Küchler
- School of Health and Biological Sciences, Universidade Positivo, Curitiba, Brazil
- School of Dentistry, Univille University, Joinville, Brazil
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