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Ji Z, Bao B, Wang Y, Wang Z, Yang Y, Xu J, Wang X, Luoreng Z. RNA Sequencing Reveals the Involvement of Serum Exosomal miRNAs in Early Pregnancy in Cattle. Animals (Basel) 2024; 14:2600. [PMID: 39272385 DOI: 10.3390/ani14172600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2024] [Revised: 08/23/2024] [Accepted: 08/27/2024] [Indexed: 09/15/2024] Open
Abstract
Low fertility is the main cause of the low productivity in beef cattle and is mainly associated with a lack of conception after fertilization. The establishment of early pregnancy in cattle is a complex physiological process, and embryo implantation is crucial for the successful establishment of pregnancy. Exosomal miRNAs play an important role in regulating mammalian embryo implantation and development. This study used synchronous estrus technology to extract exosomes from bovine serum at 0, 14, and 21 days of early pregnancy and analyzed the expression profile of exosomal miRNAs through RNA-seq technology. We identified 472 miRNA precursor sequences and 367 mature miRNA sequences in the three sample groups, with the majority of the miRNAs having high abundance. Differentially expressed miRNAs (DEmiRNAs) were screened, and 20 DEmiRNAs were obtained. The differential expression analysis results show that compared to day 0, there were 15 DEmiRNAs in the serum on day 14 and 5 on day 21 of pregnancy. Compared to the 14th day of pregnancy, there were eight DEmiRNAs in the serum on the 21st day of pregnancy. Bioinformatics analysis shows that the target genes of DEmiRNAs regulated the signaling pathways closely related to early pregnancy, including the VEGF, NF-κB, and MAPK signaling pathways. In addition, the newly discovered miRNAs were bta-miR-3604, bta-miR-2889, bta-miR-3432a, and bta-miR-409b. These results provide a theoretical reference for screening the molecular markers for early pregnancy establishment and maternal recognition of pregnancy (MRP) in cattle and new ideas for shortening the calving interval in cows.
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Affiliation(s)
- Zhongxiang Ji
- College of Animal Science and Technology, Ningxia University, Yinchuan 750021, China
| | - Binwu Bao
- College of Animal Science and Technology, Ningxia University, Yinchuan 750021, China
| | - Yumei Wang
- College of Animal Science and Technology, Ningxia University, Yinchuan 750021, China
| | - Zhengxing Wang
- College of Animal Science and Technology, Ningxia University, Yinchuan 750021, China
| | - Yi Yang
- School of Life Sciences, Ningxia University, Yinchuan 750021, China
| | - Jinrui Xu
- School of Life Sciences, Ningxia University, Yinchuan 750021, China
| | - Xingping Wang
- College of Animal Science and Technology, Ningxia University, Yinchuan 750021, China
| | - Zhuoma Luoreng
- College of Animal Science and Technology, Ningxia University, Yinchuan 750021, China
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Qiao QF, Wang LQ, Yu DE, Li N, Xu QJ, Zhou YJ. Effect of beta-cypermethrin on the reproductive capacity of female mice in advanced age. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2024; 107:104410. [PMID: 38423490 DOI: 10.1016/j.etap.2024.104410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 02/07/2024] [Accepted: 02/26/2024] [Indexed: 03/02/2024]
Abstract
The aim of the present study was to investigate whether exposure to pesticides beta-cypermethrin (β-CYP) harms the reproductive capacity of advanced-age female mice. The results evidenced that peri-implantation β-CYP exposure significantly reduced the number of fetuses per advanced-age female in the first litter, and the number and weight of implantation sites. The levels of decidualization markers were significantly reduced in β-CYP-administered advanced-age mice. Lower expression of Pcna, Cdk6, Foxo1, Ki67, and p62 protein and mRNA was found in the decidua of β-CYP-treated advanced-age mice. The levels of Bax, cleaved caspase-3, Lc3a/b, Atg, mTOR, and p-mTOR protein, and the ratio of p-mTOR/mTOR protein expression were clearly downregulated by peri-implantation β-CYP exposure. These results indicated that peri-implantation β-CYP exposure may elevate the decline in reproductive capacity of early pregnant mice in advanced age.
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Affiliation(s)
- Qian-Feng Qiao
- International School of Public Health and One Health, Hainan Medical University, Hainan Province 571199, People's Republic of China
| | - Li-Qing Wang
- Maternal, Child and Adolescent Health, International School of Public Health and One Health, Hainan Medical University, Hainan Province 571199, People's Republic of China
| | - De-E Yu
- International School of Public Health and One Health, Hainan Medical University, Hainan Province 571199, People's Republic of China
| | - Na Li
- International School of Public Health and One Health, Hainan Medical University, Hainan Province 571199, People's Republic of China
| | - Qiong-Jun Xu
- International School of Public Health and One Health, Hainan Medical University, Hainan Province 571199, People's Republic of China
| | - Yong-Jiang Zhou
- Heinz Mehlhorn Academician Workstation, Maternal, Child and Adolescent Health, International School of Public Health and One Health, Hainan Medical University, Hainan Province 571199, People's Republic of China.
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Chen H, Chen Y, Zheng Q. The regulated cell death at the maternal-fetal interface: beneficial or detrimental? Cell Death Discov 2024; 10:100. [PMID: 38409106 PMCID: PMC10897449 DOI: 10.1038/s41420-024-01867-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 02/08/2024] [Accepted: 02/14/2024] [Indexed: 02/28/2024] Open
Abstract
Regulated cell death (RCD) plays a fundamental role in placental development and tissue homeostasis. Placental development relies upon effective implantation and invasion of the maternal decidua by the trophoblast and an immune tolerant environment maintained by various cells at the maternal-fetal interface. Although cell death in the placenta can affect fetal development and even cause pregnancy-related diseases, accumulating evidence has revealed that several regulated cell death were found at the maternal-fetal interface under physiological or pathological conditions, the exact types of cell death and the precise molecular mechanisms remain elusive. In this review, we summarized the apoptosis, necroptosis and autophagy play both promoting and inhibiting roles in the differentiation, invasion of trophoblast, remodeling of the uterine spiral artery and decidualization, whereas ferroptosis and pyroptosis have adverse effects. RCD serves as a mode of communication between different cells to better maintain the maternal-fetal interface microenvironment. Maintaining the balance of RCD at the maternal-fetal interface is of utmost importance for the development of the placenta, establishment of an immune microenvironment, and prevention of pregnancy disorders. In addition, we also revealed an association between abnormal expression of key molecules in different types of RCD and pregnancy-related diseases, which may yield significant insights into the pathogenesis and treatment of pregnancy-related complications.
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Affiliation(s)
- Huan Chen
- Prenatal Diagnosis Center, The Eighth Affiliated Hospital, Sun Yat-sen University, 3025# Shennan Road, Shenzhen, 518000, P.R. China
| | - Yin Chen
- Prenatal Diagnosis Center, The Eighth Affiliated Hospital, Sun Yat-sen University, 3025# Shennan Road, Shenzhen, 518000, P.R. China
| | - Qingliang Zheng
- Prenatal Diagnosis Center, The Eighth Affiliated Hospital, Sun Yat-sen University, 3025# Shennan Road, Shenzhen, 518000, P.R. China.
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Qin XY, Ha SY, Chen L, Zhang T, Li MQ. Recent Advances in Folates and Autoantibodies against Folate Receptors in Early Pregnancy and Miscarriage. Nutrients 2023; 15:4882. [PMID: 38068740 PMCID: PMC10708193 DOI: 10.3390/nu15234882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Revised: 11/13/2023] [Accepted: 11/14/2023] [Indexed: 12/18/2023] Open
Abstract
Though firstly identified in cerebral folate deficiency, autoantibodies against folate receptors (FRAbs) have been implicated in pregnancy complications such as miscarriage; however, the underlying mechanism needs to be further elaborated. FRAbs can be produced via sensitization mediated by folate-binding protein as well as gene mutation, aberrant modulation, or degradation of folate receptors (FRs). FRAbs may interfere with folate internalization and metabolism through blocking or binding with FRs. Interestingly, different types of FRs are expressed on trophoblast cells, decidual epithelium or stroma, and macrophages at the maternal-fetal interface, implying FRAbs may be involved in the critical events necessary for a successful pregnancy. Thus, we propose that FRAbs may disturb pregnancy establishment and maintenance by modulating trophoblastic biofunctions, placental development, decidualization, and decidua homeostasis as well as the functions of FOLR2+ macrophages. In light of these findings, FRAbs may be a critical factor in pathological pregnancy, and deserve careful consideration in therapies involving folic acid supplementation for pregnancy complications.
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Affiliation(s)
- Xue-Yun Qin
- Laboratory for Reproductive Immunology, Hospital of Obstetrics and Gynecology, Fudan University, Shanghai 200080, China; (X.-Y.Q.); (S.-Y.H.)
| | - Si-Yao Ha
- Laboratory for Reproductive Immunology, Hospital of Obstetrics and Gynecology, Fudan University, Shanghai 200080, China; (X.-Y.Q.); (S.-Y.H.)
| | - Lu Chen
- Assisted Reproductive Technology Unit, Department of Obstetrics and Gynecology, Faculty of Medicine, Chinese University of Hong Kong, Hong Kong 999077, China;
| | - Tao Zhang
- Assisted Reproductive Technology Unit, Department of Obstetrics and Gynecology, Faculty of Medicine, Chinese University of Hong Kong, Hong Kong 999077, China;
| | - Ming-Qing Li
- Laboratory for Reproductive Immunology, Hospital of Obstetrics and Gynecology, Fudan University, Shanghai 200080, China; (X.-Y.Q.); (S.-Y.H.)
- Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Hospital of Obstetrics and Gynecology, Fudan University, Shanghai 200080, China
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Liang Y, Lai S, Huang L, Li Y, Zeng S, Zhang S, Chen J, Deng W, Liu Y, Liang J, Xu P, Liu M, Xiong Z, Chen D, Tu Z, Du L. JAZF1 safeguards human endometrial stromal cells survival and decidualization by repressing the transcription of G0S2. Commun Biol 2023; 6:568. [PMID: 37244968 DOI: 10.1038/s42003-023-04931-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Accepted: 05/12/2023] [Indexed: 05/29/2023] Open
Abstract
Decidualization of human endometrial stromal cells (hESCs) is essential for the maintenance of pregnancy, which depends on the fine-tuned regulation of hESCs survival, and its perturbation contributes to pregnancy loss. However, the underlying mechanisms responsible for functional deficits in decidua from recurrent spontaneous abortion (RSA) patients have not been elucidated. Here, we observed that JAZF1 was significantly downregulated in stromal cells from RSA decidua. JAZF1 depletion in hESCs resulted in defective decidualization and cell death through apoptosis. Further experiments uncovered G0S2 as a important driver of hESCs apoptosis and decidualization, whose transcription was repressed by JAZF1 via interaction with G0S2 activator Purβ. Moreover, the pattern of low JAZF1, high G0S2 and excessive apoptosis in decidua were consistently observed in RSA patients. Collectively, our findings demonstrate that JAZF1 governs hESCs survival and decidualization by repressing G0S2 transcription via restricting the activity of Purβ, and highlight the clinical implications of these mechanisms in the pathology of RSA.
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Affiliation(s)
- Yingyu Liang
- Department of Obstetrics and Gynecology, Guangdong Provincial Key Laboratory of Major Obstetric Diseases, Guangdong-Hong Kong-Macao Greater Bay Area Higher Education Joint Laboratory of Maternal-Fetal Medicine, Guangdong Engineering and Technology Research Center of Maternal-Fetal Medicine, Guangdong Provincial Clinical Research Center for Obstetrics and Gynecology, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, China
| | - Siying Lai
- Department of Obstetrics and Gynecology, Guangdong Provincial Key Laboratory of Major Obstetric Diseases, Guangdong-Hong Kong-Macao Greater Bay Area Higher Education Joint Laboratory of Maternal-Fetal Medicine, Guangdong Engineering and Technology Research Center of Maternal-Fetal Medicine, Guangdong Provincial Clinical Research Center for Obstetrics and Gynecology, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, China
| | - Lijun Huang
- Department of Obstetrics and Gynecology, Guangdong Provincial Key Laboratory of Major Obstetric Diseases, Guangdong-Hong Kong-Macao Greater Bay Area Higher Education Joint Laboratory of Maternal-Fetal Medicine, Guangdong Engineering and Technology Research Center of Maternal-Fetal Medicine, Guangdong Provincial Clinical Research Center for Obstetrics and Gynecology, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, China
| | - Yulian Li
- Department of Obstetrics and Gynecology, Guangdong Provincial Key Laboratory of Major Obstetric Diseases, Guangdong-Hong Kong-Macao Greater Bay Area Higher Education Joint Laboratory of Maternal-Fetal Medicine, Guangdong Engineering and Technology Research Center of Maternal-Fetal Medicine, Guangdong Provincial Clinical Research Center for Obstetrics and Gynecology, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, China
| | - Shanshan Zeng
- Department of Obstetrics and Gynecology, Guangdong Provincial Key Laboratory of Major Obstetric Diseases, Guangdong-Hong Kong-Macao Greater Bay Area Higher Education Joint Laboratory of Maternal-Fetal Medicine, Guangdong Engineering and Technology Research Center of Maternal-Fetal Medicine, Guangdong Provincial Clinical Research Center for Obstetrics and Gynecology, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, China
| | - Shuang Zhang
- Department of Obstetrics and Gynecology, Guangdong Provincial Key Laboratory of Major Obstetric Diseases, Guangdong-Hong Kong-Macao Greater Bay Area Higher Education Joint Laboratory of Maternal-Fetal Medicine, Guangdong Engineering and Technology Research Center of Maternal-Fetal Medicine, Guangdong Provincial Clinical Research Center for Obstetrics and Gynecology, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, China
| | - Jingsi Chen
- Department of Obstetrics and Gynecology, Guangdong Provincial Key Laboratory of Major Obstetric Diseases, Guangdong-Hong Kong-Macao Greater Bay Area Higher Education Joint Laboratory of Maternal-Fetal Medicine, Guangdong Engineering and Technology Research Center of Maternal-Fetal Medicine, Guangdong Provincial Clinical Research Center for Obstetrics and Gynecology, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, China
| | - Wenbo Deng
- Department of Obstetrics and Gynecology, Fujian Provincial Key Laboratory of Reproductive Health Research, The First Affiliated Hospital of Xiamen University, Xiamen University, Xiamen, 361102, China
| | - Yu Liu
- Department of Obstetrics and Gynecology, Guangdong Provincial Key Laboratory of Major Obstetric Diseases, Guangdong-Hong Kong-Macao Greater Bay Area Higher Education Joint Laboratory of Maternal-Fetal Medicine, Guangdong Engineering and Technology Research Center of Maternal-Fetal Medicine, Guangdong Provincial Clinical Research Center for Obstetrics and Gynecology, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, China
| | - Jingying Liang
- Department of Obstetrics and Gynecology, Guangdong Provincial Key Laboratory of Major Obstetric Diseases, Guangdong-Hong Kong-Macao Greater Bay Area Higher Education Joint Laboratory of Maternal-Fetal Medicine, Guangdong Engineering and Technology Research Center of Maternal-Fetal Medicine, Guangdong Provincial Clinical Research Center for Obstetrics and Gynecology, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, China
| | - Pei Xu
- Department of Obstetrics and Gynecology, Guangdong Provincial Key Laboratory of Major Obstetric Diseases, Guangdong-Hong Kong-Macao Greater Bay Area Higher Education Joint Laboratory of Maternal-Fetal Medicine, Guangdong Engineering and Technology Research Center of Maternal-Fetal Medicine, Guangdong Provincial Clinical Research Center for Obstetrics and Gynecology, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, China
| | - Mingxing Liu
- Department of Obstetrics and Gynecology, Guangdong Provincial Key Laboratory of Major Obstetric Diseases, Guangdong-Hong Kong-Macao Greater Bay Area Higher Education Joint Laboratory of Maternal-Fetal Medicine, Guangdong Engineering and Technology Research Center of Maternal-Fetal Medicine, Guangdong Provincial Clinical Research Center for Obstetrics and Gynecology, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, China
| | - Zhongtang Xiong
- Department of Pathology, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, China
| | - Dunjin Chen
- Department of Obstetrics and Gynecology, Guangdong Provincial Key Laboratory of Major Obstetric Diseases, Guangdong-Hong Kong-Macao Greater Bay Area Higher Education Joint Laboratory of Maternal-Fetal Medicine, Guangdong Engineering and Technology Research Center of Maternal-Fetal Medicine, Guangdong Provincial Clinical Research Center for Obstetrics and Gynecology, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, China.
| | - Zhaowei Tu
- Department of Obstetrics and Gynecology, Guangdong Provincial Key Laboratory of Major Obstetric Diseases, Guangdong-Hong Kong-Macao Greater Bay Area Higher Education Joint Laboratory of Maternal-Fetal Medicine, Guangdong Engineering and Technology Research Center of Maternal-Fetal Medicine, Guangdong Provincial Clinical Research Center for Obstetrics and Gynecology, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, China.
| | - Lili Du
- Department of Obstetrics and Gynecology, Guangdong Provincial Key Laboratory of Major Obstetric Diseases, Guangdong-Hong Kong-Macao Greater Bay Area Higher Education Joint Laboratory of Maternal-Fetal Medicine, Guangdong Engineering and Technology Research Center of Maternal-Fetal Medicine, Guangdong Provincial Clinical Research Center for Obstetrics and Gynecology, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, China.
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Zhai Y, Shi Q, Chu Q, Chen F, Feng Y, Zhang Z, Qi X, Arends D, Brockmann GA, Wang E, Lyu S. miRNA profiling in intrauterine exosomes of pregnant cattle on day 7. Front Vet Sci 2022; 9:1078394. [PMID: 36605764 PMCID: PMC9810022 DOI: 10.3389/fvets.2022.1078394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Accepted: 12/05/2022] [Indexed: 12/24/2022] Open
Abstract
Intrauterine exosomes have been identified to be involved in the embryo development and implantation. The aim of this study was to explore the role of miRNAs in intrauterine exosomes in bovine pregnancy. Intrauterine exosomes were collected from uterine flushing fluids of three donor and three recipient Xianan cows 7 days after fertilization. Intrauterine exosomes miRNAs were extracted and the exosomal miRNAs expression levels were analyzed. Sixty miRNAs differed significantly in their amounts between donors and recipients (p-value < 0.05, |log2(FoldChange)| > 1). Twenty-two miRNAs were upregulated and 38 downregulated in the group of donor cows. The bta-miR-184 was the most significant (P Benjamini-Hochberg < 0.001). A total of 9,775 target genes were predicted using the 60 miRNAs. GO and KEGG analysis showed that the target genes were enriched in several biological processes or pathways associated with embryo implantation and endometrial development, such as cell adhesion, cell junction, focal adhesion, and Rap1 signaling pathway. Our findings suggest that, in cattle early pregnancy stage, these differently expressed miRNAs in intrauterine exosomes involved in embryo implantation and endometrial development, which may exert a significant effect and influence the uterine microenvironment for embryo implantation. These results could provide reference for screening and exploring the intrauterine exosomal miRNA affecting embryo implantation.
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Affiliation(s)
- Yaying Zhai
- Institute of Animal Husbandry and Veterinary Science, Henan Academy of Agricultural Sciences, Zhengzhou, Henan, China,College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - Qiaoting Shi
- Institute of Animal Husbandry and Veterinary Science, Henan Academy of Agricultural Sciences, Zhengzhou, Henan, China
| | - Qiuxia Chu
- Institute of Animal Husbandry and Veterinary Science, Henan Academy of Agricultural Sciences, Zhengzhou, Henan, China
| | - Fuying Chen
- Institute of Animal Husbandry and Veterinary Science, Henan Academy of Agricultural Sciences, Zhengzhou, Henan, China
| | - Yajie Feng
- Institute of Animal Husbandry and Veterinary Science, Henan Academy of Agricultural Sciences, Zhengzhou, Henan, China
| | - Zijing Zhang
- Institute of Animal Husbandry and Veterinary Science, Henan Academy of Agricultural Sciences, Zhengzhou, Henan, China
| | - Xinglei Qi
- Center of Animal Husbandry Technical Service in Biyang, Zhumadian, China
| | - Danny Arends
- Department of Applied Sciences, Northumbria University, Newcastle upon Tyne, United Kingdom
| | - Gudrun A. Brockmann
- Albrecht Daniel Thaer-Institute of Agricultural and Horticultural Sciences, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Eryao Wang
- Institute of Animal Husbandry and Veterinary Science, Henan Academy of Agricultural Sciences, Zhengzhou, Henan, China,*Correspondence: Eryao Wang ✉
| | - Shijie Lyu
- Institute of Animal Husbandry and Veterinary Science, Henan Academy of Agricultural Sciences, Zhengzhou, Henan, China,The Shennong Laboratory, Zhengzhou, Henan, China,Shijie Lyu ✉
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Liu M, Chen Q, Sun Y, Zeng L, Wu H, Gu Q, Li P. Probiotic Potential of a Folate-Producing Strain Latilactobacillus sakei LZ217 and Its Modulation Effects on Human Gut Microbiota. Foods 2022; 11:234. [PMID: 35053965 PMCID: PMC8774781 DOI: 10.3390/foods11020234] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 01/11/2022] [Accepted: 01/13/2022] [Indexed: 01/27/2023] Open
Abstract
Folate is a B-vitamin required for DNA synthesis, methylation, and cellular division, whose deficiencies are associated with various disorders and diseases. Currently, most folic acid used for fortification is synthesized chemically, causing undesirable side effects. However, using folate-producing probiotics is a viable option, which fortify folate in situ and regulate intestinal microbiota. In this study, the folate production potential of newly isolated strains from raw milk was analyzed by microbiological assay. Latilactobacillus sakei LZ217 showed the highest folate production in Folic Acid Assay Broth, 239.70 ± 0.03 ng/μL. The folate produced by LZ217 was identified as 5-methyltetrahydrofolate. LZ217 was tolerant to environmental stresses (temperature, pH, NaCl, and ethanol), and was resistant to gastrointestinal juices. Additionally, the in vitro effects of LZ217 on human gut microbiota were investigated by fecal slurry cultures. 16S rDNA gene sequencing indicated that fermented samples containing LZ217 significantly increased the abundance of phylum Firmicutes and genus Lactobacillus, Faecalibacterium, Ruminococcus 2, Butyricicoccus compared to not containing. Short-chain fatty acids (SCFAs) analysis revealed that LZ217 also increased the production of butyric acid by fermentation. Together, L. sakei LZ217 could be considered as a probiotic candidate to fortify folate and regulate intestinal microecology.
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Affiliation(s)
- Manman Liu
- College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China; (M.L.); (Q.C.); (Y.S.); (L.Z.); (H.W.)
- Key Laboratory for Food Microbial Technology of Zhejiang Province, Hangzhou 310018, China
| | - Qingqing Chen
- College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China; (M.L.); (Q.C.); (Y.S.); (L.Z.); (H.W.)
- Key Laboratory for Food Microbial Technology of Zhejiang Province, Hangzhou 310018, China
| | - Yalian Sun
- College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China; (M.L.); (Q.C.); (Y.S.); (L.Z.); (H.W.)
- Key Laboratory for Food Microbial Technology of Zhejiang Province, Hangzhou 310018, China
| | - Lingzhou Zeng
- College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China; (M.L.); (Q.C.); (Y.S.); (L.Z.); (H.W.)
- Key Laboratory for Food Microbial Technology of Zhejiang Province, Hangzhou 310018, China
| | - Hongchen Wu
- College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China; (M.L.); (Q.C.); (Y.S.); (L.Z.); (H.W.)
- Key Laboratory for Food Microbial Technology of Zhejiang Province, Hangzhou 310018, China
| | - Qing Gu
- Key Laboratory for Food Microbial Technology of Zhejiang Province, Hangzhou 310018, China
| | - Ping Li
- College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China; (M.L.); (Q.C.); (Y.S.); (L.Z.); (H.W.)
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Zhang Y, Zhang L, Bao J, Liu L, Wang X. Perfluorooctanoic acid exposure in early pregnancy induces oxidative stress in mice uterus and liver. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:66355-66365. [PMID: 34331232 DOI: 10.1007/s11356-021-15453-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 07/11/2021] [Indexed: 06/13/2023]
Abstract
This study aimed to explore the mechanism of perfluorooctanoic acid (PFOA) toxicity on the uterus and liver of mice during early pregnancy. Pregnant mice were given 0, 1, 5, 10, 20, and 40 mg/kg PFOA daily by gavage from gestational day (GD) 1-7 and sacrificed on GD 9. Subsequently, several toxicity parameters were evaluated, including the uterus and liver weights, liver and uterine indexes, histopathological changes of the liver and uterus, and levels of malondialdehyde (MDA), superoxide dismutase (SOD), and glutathione peroxidase (GSH-Px) in the liver. We also determined the expressions of FAS, FASL, Bax, Bcl-2, and Caspase-3 in decidual cells by immunohistochemistry and the TUNEL assay to detect apoptosis uterine cells. The results showed that PFOA increased the liver weights and reduced the uterus index in a dose-dependent manner. With increasing doses of PFOA, the levels of SOD and GSH-Px were significantly decreased, and MDA increased substantially in liver tissue. 20 mg/kg and 40 mg/kg of PFOA caused more substantial harm to the uterus, thus a higher probability for congestion and resorption. The expression of FAS, FASL, Bax, and Caspase-3 in decidual cells of the uterus in the PFOA treatment groups significantly increased in a dose-dependent manner. The expression of Bcl-2 was downregulated, decreasing the Bcl-2/Bax ratio. At gestation day 9, the control group had significantly fewer apoptotic cells in the uterus and shallower staining than the 40 mg/kg PFOA group. The findings of this study suggest that oxidative damage may be one of the mechanisms by which PFOA induces liver toxicity, and a subsequent increase in uterine cell apoptosis may cause embryo loss or damage.
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Affiliation(s)
- Yan Zhang
- College of Traditional Chinese Veterinary Medicine, Hebei Agricultural University, Baoding, 071001, China
| | - Linchao Zhang
- College of Traditional Chinese Veterinary Medicine, Hebei Agricultural University, Baoding, 071001, China
| | - Jialu Bao
- College of Traditional Chinese Veterinary Medicine, Hebei Agricultural University, Baoding, 071001, China
| | - Liantao Liu
- College of Agronomy, Hebei Agricultural University, Baoding, 071001, China
| | - Xiaodan Wang
- College of Traditional Chinese Veterinary Medicine, Hebei Agricultural University, Baoding, 071001, China.
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Zhang Y, Yuan H, Peng M, Hu Z, Fan Z, Xu J, He L, Wang Y, Wang W, Su Y, Liu C, Zhang H, Zhao K. Folic acid deficiency damages male reproduction via endoplasmic reticulum stress-associated PERK pathway induced by Caveolin-1 in mice. Syst Biol Reprod Med 2021; 67:383-394. [PMID: 34474604 DOI: 10.1080/19396368.2021.1954724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Folic acid is critical to maintaining normal male reproductive function. Endoplasmic reticulum (ER) stress plays a crucial role in folic acid deficiency. Studies have shown that Caveolin-1 (Cav-1) is involved in ER stress, but the specific mechanism in male reproduction is still unclear. This study aimed to investigate the effects of folic acid deficiency on spermatogenesis and elucidate the underlying mechanisms. C57BL/6 mice fed with folic acid deficiency induced diet(0.3 mg/kg) were used. A significant decrease in the sperm concentration in the folic acid deficiency group was observed. Meanwhile, folic acid deficiency decreased Cav-1 expression in the testis tissue and increased endoplasmic reticulum stress-related PERK, eIF2α, ATF4, CHOP gene expression. Our results suggest that folic acid deficiency can affect male reproduction through the Cav-1-PERK-eIFα-ATF4-CHOP pathway.Abbreviations: ATF4: activating transcription factor 4; Ca2+: calcium ion; Cav-1: Caveolin-1; CCK-8: cell counting kit-8; CHOP: CCAAT-enhancer-binding protein homologous protein; DNA: Deoxyribonucleic acid; DSB: double strand breakage; eIF2α: eukaryotic Initiation Factor 2 alpha; ER: endoplasmic reticulum; FD: folic acid deficiency; FITC: fluorescein isothiocyanate; HE: hematoxylin and eosin; H3K4me3: histone H3 lysine 4 trimethylation; PERK: protein kinase RNA-like endoplasmic reticulum kinase; PI: propidium iodide; RT-qPCR: quantitative reverse transcription PCR; TUNEL: TdT mediated dUTP Nick End Labeling.
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Affiliation(s)
- Yuan Zhang
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hongfang Yuan
- Department of Obstetrics And Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Meilin Peng
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhiyong Hu
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zunpan Fan
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jia Xu
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Liting He
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yongfeng Wang
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wei Wang
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yufang Su
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Chunyan Liu
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Huiping Zhang
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Kai Zhao
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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11
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Wang D, Li W, Yang C, Chen X, Liu X, He J, Tong C, Peng C, Ding Y, Geng Y, Cao X, Li F, Gao R, Wang Y. Exposure to ethylparaben and propylparaben interfere with embryo implantation by compromising endometrial decidualization in early pregnant mice. J Appl Toxicol 2021; 41:1732-1746. [PMID: 34101200 DOI: 10.1002/jat.4208] [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: 01/24/2021] [Revised: 05/03/2021] [Accepted: 05/24/2021] [Indexed: 11/10/2022]
Abstract
Ethylparaben (EtP) and propylparaben (PrP) are common preservatives and well-known endocrine-disrupting chemicals. Studies have demonstrated that they can reduce female fertility, but the underlying mechanism, especially that on embryo implantation, is still poorly understood. Endometrial decidualization is a critical event for embryo implantation. In this study, we aimed to explore the effects of EtP/PrP on endometrial decidualization. Pregnant mice were dosed daily by oral gavage with EtP at 0, 400, 800 and 1600 mg/kg or with PrP at 0, 625, 1250 and 2500 mg/kg from Day 1 of pregnancy until sacrifice. The results showed that the rate of pregnant mice with impaired embryo implantation, whose number of implantation sites was less than 7, was significantly increased after exposure to 1600 mg/kg EtP or 2500 mg/kg PrP. Further study found that the expression of endometrial decidualization markers HOXA10, MMP9 and PR was significantly downregulated in 1600 mg/kg EtP group and 2500 mg/kg PrP group. Notably, serum oestrogen and progesterone levels were significantly increased, whereas the expression of uterine oestrogen receptor and progesterone receptor was decreased following 1600 mg/kg EtP or 2500 mg/kg PrP exposure. In the breeding test, fewer offspring were found after females were exposed to 1600 mg/kg EtP or 2500 mg/kg PrP in early pregnancy. This demonstrated that exposure to EtP/PrP interfered with embryo implantation by compromising endometrial decidualization in early-stage pregnant mice. Disorders of reproductive hormones and hormone receptor signals could be responsible for impaired decidualization. This study broadened the understanding on the biological safety of EtP and PrP.
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Affiliation(s)
- Dan Wang
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing, China.,Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China
| | - Weike Li
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing, China.,Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China
| | - Chengshun Yang
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing, China.,Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China
| | - Xuemei Chen
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing, China.,Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China
| | - Xueqing Liu
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing, China.,Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China
| | - Junlin He
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing, China.,Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China
| | - Chao Tong
- Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China.,Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Chuan Peng
- Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China.,The Chongqing Key Laboratory of Translational Medicine in Major Metabolic Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yubin Ding
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing, China.,Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China
| | - Yanqing Geng
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing, China.,Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China
| | - Xianqing Cao
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing, China.,Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China
| | - Fangfang Li
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing, China.,Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China
| | - Rufei Gao
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing, China.,Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China
| | - Yingxiong Wang
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing, China.,Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, China
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12
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Zhang Y, Gao R, Zhang L, Geng Y, Chen Q, Chen X, Liu X, Mu X, Ding Y, Wang Y, He J. AMPK/mTOR downregulated autophagy enhances aberrant endometrial decidualization in folate-deficient pregnant mice. J Cell Physiol 2021; 236:7376-7389. [PMID: 33959973 DOI: 10.1002/jcp.30408] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 04/15/2021] [Accepted: 04/19/2021] [Indexed: 12/19/2022]
Abstract
Existing evidence suggests that adverse pregnancy outcomes are closely related to dietary factors. Folate plays an important role in neural tube formation and fetal growth, folate deficiency is a major risk factor of birth defects. Our early studies showed that folate deficiency could impair enddecidualization, however, the mechanism is still unclear. Dysfunctional autophagy is associated with many diseases. Here, we aimed to evaluate the adverse effect of folate deficiency on endometrial decidualization, with a particular focus on endometrial cell autophagy. Mice were fed with no folate diet in vivo and the mouse endometrial stromal cell was cultured in a folate-free medium in vitro. The decrease of the number of endometrial autophagosomes and the protein expressions of autophagy in the folate-deficient group indicated that autophagosome formation, autophagosome-lysosome fusion, and lysosomal degradation were inhibited. Autophagic flux examination using mCherry-GFP-LC3 transfection showed that the fusion of autophagosomes with lysosomes was inhibited by folate deficiency. Autophagy inducer rapamycin could reverse the impairment of folate deficiency on endometrial decidualization. Moreover, folate deficiency could reduce autophagy by disrupting AMPK/mTOR signaling, resulting in aberrant endometrial decidualization and adverse pregnancy outcomes. Further co-immunoprecipitation examination showed that decidual marker protein Hoxa10 could interact with autophagic marker protein Cathepsin L, and the interaction was notably reduced by folate deficiency. In conclusion, AMPK/mTOR downregulated autophagy was essential for aberrant endometrial decidualization in early pregnant mice, which could result in adverse pregnancy outcomes. This provided some new clues for understanding the causal mechanisms of birth defects induced by folate deficiency.
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Affiliation(s)
- Yan Zhang
- Laboratory of Reproductive Biology, College of Public Health and Administration, Chongqing Medical University, Chongqing, PR China
- Joint International Research, Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, PR China
| | - Rufei Gao
- Laboratory of Reproductive Biology, College of Public Health and Administration, Chongqing Medical University, Chongqing, PR China
- Joint International Research, Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, PR China
| | - Lei Zhang
- Laboratory of Reproductive Biology, College of Public Health and Administration, Chongqing Medical University, Chongqing, PR China
- Joint International Research, Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, PR China
| | - Yanqing Geng
- Joint International Research, Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, PR China
- College of Basic Medicine, Chongqing Medical University, Chongqing, PR China
| | - Qiutong Chen
- Laboratory of Reproductive Biology, College of Public Health and Administration, Chongqing Medical University, Chongqing, PR China
- Joint International Research, Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, PR China
| | - Xuemei Chen
- Laboratory of Reproductive Biology, College of Public Health and Administration, Chongqing Medical University, Chongqing, PR China
- Joint International Research, Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, PR China
| | - Xueqing Liu
- Laboratory of Reproductive Biology, College of Public Health and Administration, Chongqing Medical University, Chongqing, PR China
- Joint International Research, Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, PR China
| | - Xinyi Mu
- Joint International Research, Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, PR China
- College of Basic Medicine, Chongqing Medical University, Chongqing, PR China
| | - Yubin Ding
- Laboratory of Reproductive Biology, College of Public Health and Administration, Chongqing Medical University, Chongqing, PR China
- Joint International Research, Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, PR China
| | - Yingxiong Wang
- Joint International Research, Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, PR China
- College of Basic Medicine, Chongqing Medical University, Chongqing, PR China
| | - Junlin He
- Laboratory of Reproductive Biology, College of Public Health and Administration, Chongqing Medical University, Chongqing, PR China
- Joint International Research, Laboratory of Reproduction & Development, Chongqing Medical University, Chongqing, PR China
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13
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Yin XJ, Hong W, Tian FJ, Li XC. Proteomic analysis of decidua in patients with recurrent pregnancy loss (RPL) reveals mitochondrial oxidative stress dysfunction. Clin Proteomics 2021; 18:9. [PMID: 33618676 PMCID: PMC7898782 DOI: 10.1186/s12014-021-09312-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 01/15/2021] [Indexed: 12/30/2022] Open
Abstract
Background Pregnancy is a complicated physiological process. The multifaceted regulation of maternal–fetal interface is of great importance for maintaining normal pregnancy and avoiding fetal rejection and secondary abortion. Previous studies have focused on the clinical features or pathological biomarkers of fetal rejection and abortion. However, no significant breakthrough has been made. Therefore, it is important to understand the molecular mechanisms of recurrent pregnancy loss (RPL) to identify potential therapeutic strategies. The aim of this study was to investigate the pathogenesis of RPL. Methods In this study, Relative and absolute quantitation (iTRAQ) technology integrated with liquid chromatography-tandem mass spectrometry (LC–MS/MS) analysis was used to identify differentially expressed proteins in decidual from RPL patients and matched normal controls. Further, Molecules NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 3 (ndufb3) and cyclooxygenase-2 (COX-2) were validated by immunohistochemistry (IHC), Western blotting, CCK8 and mitochondrial red fluorescent probe (Mito-Tracker Red CMXRos). Results A total of 456 proteins reached the threshold of a 1.5-fold change were identified for further bioinformatics analysis. Upon mapping the differentially expressed proteins using the Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways database, iTRAQ results were confirmed by assessing NDUFB3 and COX-2 protein levels in specimens of decidual tissue by Western blotting. Our study indicates that the level of COX-2 and NDUFB3 were significantly increased in decidual cell from RPL patients. Overexpression of NDUFB3 inhibited cell vitality and oxidative stress of decimal cell. Further, our found that overexpression NDUFBD3 in decidual cell decreased the mitochondrial membrane potential expression levels. These results suggest that NDUFB3 might play an important role in promote the pathological process of RPL. Conclusions This comprehensive analysis of RPL proteomics reveals novel candidate: NDUFB3, which could be further investigated for explanation of the pathological mechanism of RPL.
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Affiliation(s)
- Xiang-Jie Yin
- Department of Gynecology, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
| | - Wei Hong
- Department of Gynecology, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
| | - Fu-Ju Tian
- International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xiao-Cui Li
- Department of Gynecology, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China.
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14
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Yin X, Gao R, Geng Y, Chen X, Liu X, Mu X, Ding Y, Wang Y, He J. Autophagy regulates abnormal placentation induced by folate deficiency in mice. Mol Hum Reprod 2020; 25:305-319. [PMID: 30976800 DOI: 10.1093/molehr/gaz022] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2018] [Revised: 03/18/2019] [Indexed: 12/14/2022] Open
Abstract
Folate deficiency has been linked to a wide range of pregnancy disorders. Most research about folate-deficiency has focused on the embryo itself, little attention has been paid to possible effects on the placenta. According to our results, the morphology of the placenta, endocrine function, and the expression of genes involved in placental differentiation were all abnormal in folate-deficient mice on days 10, 12, and 14 of pregnancy. Similar results were found in human placenta explants cultured in folate-deficient medium. Autophagy is an inducible catabolic process activated by external nutrients starvation. Here we explored further, whether autophagy was involved in the abnormal placentation caused by folate-deficiency. The aberrant number of autophagosomes measured by transmission electron microscopy and the deviant expression of autophagy-related markers showed a disordered autophagy in placentas under conditions of folate-deficiency in vivo and in vitro dual-fluorescence mRFP-eGFP-LC3 analysis indicated enhanced autophagy was detected in HTR8/SVneo cells incubated in folate-deficient medium. Importantly, the placentation impairment in mice and human placenta explants could be recovered by inhibiting placental autophagy using 3-MA. In addition, the apoptosis and invasive capability of HTR8/SVneo cells were obviously suppressed by folate deficiency but notably elevated by 3-MA. These data suggest that folate deficiency can impair placentation and autophagy is a key factor in this. However, the signal pathway by which folate deficiency causes aberrant autophagy needs to be explored further.
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Affiliation(s)
- Xin Yin
- Laboratory of Reproductive Biology, School of Public Health and Management and Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Yuzhong District, Chongqing, PR China
| | - Rufei Gao
- Laboratory of Reproductive Biology, School of Public Health and Management and Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Yuzhong District, Chongqing, PR China
| | - Yanqing Geng
- Laboratory of Reproductive Biology, School of Public Health and Management and Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Yuzhong District, Chongqing, PR China
| | - Xuemei Chen
- Laboratory of Reproductive Biology, School of Public Health and Management and Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Yuzhong District, Chongqing, PR China
| | - Xueqing Liu
- Laboratory of Reproductive Biology, School of Public Health and Management and Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Yuzhong District, Chongqing, PR China
| | - Xinyi Mu
- Laboratory of Reproductive Biology, School of Public Health and Management and Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Yuzhong District, Chongqing, PR China
| | - Yubin Ding
- Laboratory of Reproductive Biology, School of Public Health and Management and Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Yuzhong District, Chongqing, PR China
| | - Yingxiong Wang
- Laboratory of Reproductive Biology, School of Public Health and Management and Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Yuzhong District, Chongqing, PR China
| | - Junlin He
- Laboratory of Reproductive Biology, School of Public Health and Management and Joint International Research Laboratory of Reproduction & Development, Chongqing Medical University, Yuzhong District, Chongqing, PR China
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15
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Su Y, Zhang JJ, He JL, Liu XQ, Chen XM, Ding YB, Tong C, Peng C, Geng YQ, Wang YX, Gao RF. Endometrial autophagy is essential for embryo implantation during early pregnancy. J Mol Med (Berl) 2020; 98:555-567. [PMID: 32072231 DOI: 10.1007/s00109-019-01849-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 10/16/2019] [Accepted: 10/25/2019] [Indexed: 12/11/2022]
Abstract
Embryo implantation is an essential and complex process in mammalian reproduction. However, little evidence has indicated the involvement of autophagy during embryo implantation. To determine the possible role of autophagy in uterine of pregnant mice during the peri-implantation stage, we first examined the expression of autophagy-related markers ATG5 and LC3 on day 4, 5, and 6 of pregnancy (D4, D5, and D6, respectively). Compared with expression on D4, downregulation of the autophagy-related markers was observed on D5 and D6, the days after the embryo attached to the receptivity endometrium. Further examination showed that autophagy-related markers ATG5, ATG12, LC3, cathepsin B, and P62 at the implantation site were significantly decreased when comparing with the inter-implantation site. Fewer number of autophagosomes at the implantation site were also observed by transmission electron microscopy. To confirm the functional role of autophagy during embryo implantation in mice, we administered the autophagy inhibitor 3-methyladenine and chloroquine to mice. After treated with 3-methyladenine, the expression of decidual markers HOXA10 and progesterone receptor were significantly reduced. Furthermore, a reduction in implantation sites and increase in the HOXA10 and PR protein levels were observed in response to chloroquine treatment. In addition, impaired uterine decidualization and dysregulation of the PR and HOXA10 protein levels was observed after autophagy inhibited by 3-methyladenine and chloroquine in in vivo artificial decidualization mouse model. In the last, LC3 and P62 were also observed in normal human proliferative, secretory, and decidua tissues. In conclusion, endometrial autophagy may be essential for embryo implantation, and it may be associated with endometrial decidualization during early pregnancy. KEY MESSAGE: • Autophagy-related markers were significantly decreased at implantation site. • Autophagy inhibition results in abnormal decidualization. • Autophagy is essential for embryo implantation.
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Affiliation(s)
- Yan Su
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing, 400016, China
- Joint International Research Laboratory of Reproduction&Development, Chongqing, 400016, China
| | - Juan-Juan Zhang
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing, 400016, China
- Reproductive Medicine Centre, Taihe Hospital, Hubei University of Medicine, 32 South Renmin Road, Shiyan, 442000, Hubei, China
| | - Jun-Lin He
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing, 400016, China
- Joint International Research Laboratory of Reproduction&Development, Chongqing, 400016, China
| | - Xue-Qing Liu
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing, 400016, China
- Joint International Research Laboratory of Reproduction&Development, Chongqing, 400016, China
| | - Xue-Mei Chen
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing, 400016, China
- Joint International Research Laboratory of Reproduction&Development, Chongqing, 400016, China
| | - Yu-Bin Ding
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing, 400016, China
- Joint International Research Laboratory of Reproduction&Development, Chongqing, 400016, China
| | - Chao Tong
- Joint International Research Laboratory of Reproduction&Development, Chongqing, 400016, China
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Chuan Peng
- Joint International Research Laboratory of Reproduction&Development, Chongqing, 400016, China
- The Chongqing Key Laboratory of Translational Medicine in Major Metabolic Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Yan-Qing Geng
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing, 400016, China
- Joint International Research Laboratory of Reproduction&Development, Chongqing, 400016, China
| | - Ying-Xiong Wang
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing, 400016, China.
- Joint International Research Laboratory of Reproduction&Development, Chongqing, 400016, China.
| | - Ru-Fei Gao
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing, 400016, China.
- Joint International Research Laboratory of Reproduction&Development, Chongqing, 400016, China.
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16
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Zhang C, Yang C, Li N, Liu X, He J, Chen X, Ding Y, Tong C, Peng C, Yin H, Wang Y, Gao R. Elevated insulin levels compromise endometrial decidualization in mice with decrease in uterine apoptosis in early-stage pregnancy. Arch Toxicol 2019; 93:3601-3615. [PMID: 31642978 DOI: 10.1007/s00204-019-02601-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Accepted: 10/15/2019] [Indexed: 01/21/2023]
Abstract
Women with hyperinsulinism and insulin resistance have reduced fertility, but the underlying mechanism is still poorly understood. Aberrant endometrial decidualization in early pregnancy was linked to pregnancy complications. In this study, we aimed to test whether elevated insulin levels compromise decidualization in early-stage pregnancy. C57BL/6J mice in high insulin-exposed group were given a subcutaneous injection of recombinant insulin at a concentration of 0.05 IU daily. During decidualization in early pregnancy, serum levels of insulin, E2, P4, LH, FSH and blood glucose were significantly altered in mice treated with high insulin levels. The number of embryo implantation sites and endometrial decidual markers BMP2, ER, PR was significantly decreased by high insulin levels in vivo. Artificial decidual induction in primary mouse endometrial stromal cells and immortal human endometrial stromal cells line were all compromised after treated with 100 nmol/L insulin levels. All these results on flow cytometry, transmission electron microscopy and western blotting of Bax, Bcl2, cleaved Caspase3, cleaved PARP proteins level showed that decidual cells apoptosis was significantly decreased. Mitochondrial transmembrane potential also significantly increased by the influence of high insulin levels. PI3K and p-Akt were much higher after insulin exposure and the compromised decidualization by high insulin treatment was rescued by PI3K/Akt inhibitor LY294002 both in vitro and in vivo. In conclusion, we demonstrated that elevated insulin levels could compromise mice decidualization in early-stage pregnancy and PI3K/p-Akt-regulated apoptosis was essential for this role. It provides a clue for future investigation on compromised reproduction in women with hyperinsulinemia.
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Affiliation(s)
- Chen Zhang
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, China.,Joint International Research Laboratory of Reproduction and Development, Chongqing Medical University, Chongqing, 400016, China.,Department of Obstetrics and Gynecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Chengshun Yang
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, China.,Joint International Research Laboratory of Reproduction and Development, Chongqing Medical University, Chongqing, 400016, China
| | - Na Li
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, China.,Joint International Research Laboratory of Reproduction and Development, Chongqing Medical University, Chongqing, 400016, China
| | - Xueqing Liu
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, China.,Joint International Research Laboratory of Reproduction and Development, Chongqing Medical University, Chongqing, 400016, China
| | - Junlin He
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, China.,Joint International Research Laboratory of Reproduction and Development, Chongqing Medical University, Chongqing, 400016, China
| | - Xuemei Chen
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, China.,Joint International Research Laboratory of Reproduction and Development, Chongqing Medical University, Chongqing, 400016, China
| | - Yubin Ding
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, China.,Joint International Research Laboratory of Reproduction and Development, Chongqing Medical University, Chongqing, 400016, China
| | - Chao Tong
- Joint International Research Laboratory of Reproduction and Development, Chongqing Medical University, Chongqing, 400016, China.,Department of Obstetrics and Gynecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Chuan Peng
- Laboratory of Maternal and Fetal Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Hubin Yin
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Yingxiong Wang
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, China.,Joint International Research Laboratory of Reproduction and Development, Chongqing Medical University, Chongqing, 400016, China
| | - Rufei Gao
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, China. .,Joint International Research Laboratory of Reproduction and Development, Chongqing Medical University, Chongqing, 400016, China.
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17
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Shukla V, Kaushal JB, Sankhwar P, Manohar M, Dwivedi A. Inhibition of TPPP3 attenuates β-catenin/NF-κB/COX-2 signaling in endometrial stromal cells and impairs decidualization. J Endocrinol 2019; 240:417-429. [PMID: 30667362 DOI: 10.1530/joe-18-0459] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Accepted: 01/03/2019] [Indexed: 12/13/2022]
Abstract
Embryo implantation and decidualization are critical events that occur during early pregnancy. Decidualization is synchronized by the crosstalk of progesterone and the cAMP signaling pathway. Previously, we confirmed the role of TPPP3 during embryo implantation in mice, but the underlying role and mechanism of TPPP3 in decidualization has not yet been understood. The current study was aimed to investigate the role of TPPP3 in decidualization in vivo and in vitro. For in vivo experiments, decidual reaction was artificially induced in the uteri of BALB/c mice. TPPP3 was found to be highly expressed during decidualization, whereas in the uteri receiving TPPP3 siRNA, decidualization was suppressed and the expression of β-catenin and decidual marker prolactin was reduced. In human endometrium, TPPP3 protein was found to be predominantly expressed in the mid-secretory phase (LH+7). In the primary culture of human endometrial stromal cells (hESCs), TPPP3 siRNA knockdown inhibited stromal-to-decidual cell transition and decreased the expression of the decidualization markers prolactin and IGFBP-1. Immunofluorescence and immunoblotting experiments revealed that TPPP3 siRNA knockdown suppressed the expression of β-catenin, NF-κB and COX-2 in hESCs during decidualization. TPPP3 inhibition also decreased NF-kB nuclear accumulation in hESCs and suppressed NF-κB transcriptional promoter activity. COX-2 expression was significantly decreased in the presence of a selective NF-kB inhibitor (QNZ) implicating that NF-kB is involved in COX-2 expression in hESCs undergoing decidualization. TUNEL assay and FACS analysis revealed that TPPP3 knockdown induced apoptosis and caused loss of mitochondrial membrane potential in hESCs. The study suggested that TPPP3 plays a significant role in decidualization and its inhibition leads to the suppression of β-catenin/NF-κB/COX-2 signaling along with the induction of mitochondria-dependent apoptosis.
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Affiliation(s)
- Vinay Shukla
- Division of Endocrinology, CSIR-Central Drug Research Institute, Lucknow, India
- Academy of Scientific and Innovative Research (AcSIR), CSIR-CDRI Campus, Lucknow, India
| | - Jyoti Bala Kaushal
- Division of Endocrinology, CSIR-Central Drug Research Institute, Lucknow, India
- Academy of Scientific and Innovative Research (AcSIR), CSIR-CDRI Campus, Lucknow, India
| | - Pushplata Sankhwar
- Department of Obstetrics and Gynecology, King George's Medical University, Lucknow, India
| | - Murli Manohar
- Division of Endocrinology, CSIR-Central Drug Research Institute, Lucknow, India
| | - Anila Dwivedi
- Division of Endocrinology, CSIR-Central Drug Research Institute, Lucknow, India
- Academy of Scientific and Innovative Research (AcSIR), CSIR-CDRI Campus, Lucknow, India
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18
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Hong L, Yu T, Xu H, Hou N, Cheng Q, Lai L, Wang Q, Sheng J, Huang H. Down-regulation of miR-378a-3p induces decidual cell apoptosis: a possible mechanism for early pregnancy loss. Hum Reprod 2019; 33:11-22. [PMID: 29165645 DOI: 10.1093/humrep/dex347] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2017] [Accepted: 10/28/2017] [Indexed: 01/29/2023] Open
Abstract
STUDY QUESTION Do microRNAs (miRNAs) contribute to human early pregnancy loss (EPL)? SUMMARY ANSWER miR-378a-3p expression is regulated by progesterone and is down-regulated in ducidua of EPL patients which may contribute to decidual apoptosis through Caspase-3 activation. WHAT IS KNOWN ALREADY A variety of miRNAs have been demonstrated to be associated with the development of decidualization and placental formation. However, little has been reported on the roles of miRNA in the pathogenesis of EPL. STUDY DESIGN, SIZE, DURATION Normal and EPL decidual tissues were collected from patients with normal pregnancies undergoing elective termination of gestation, and from patients with EPL, respectively. PARTICIPANTS/MATERIALS, SETTING, METHODS miRNA microarrays were used to identify the differentially expressed miRNAs between normal and EPL decidua, and miRNA expression was confirmed by qRT-PCR, qRT-PCR, western blotting and luciferase reporter assays were employed to validate the downstream targets of miR-378a-3p. The effects of miR-378a-3p were evaluated using miR-378a-3p-transfected decidual cells. MAIN RESULTS AND THE ROLE OF CHANCE Of note, 32 up-regulated miRNAs and 38 down-regulated miRNAs were identified by microarray analysis when comparing EPL to normal decidua. MiR-378a-3p was significantly down-regulated in the EPL decidua and was found to inversely regulate the expression of Caspase-3 by directly binding to its 3'-UTRs. In decidual cells, transfection of miR-378a-3p mimics resulted in the inhibition of cell apoptosis and in the increase of cell proliferation through Caspase-3 suppression. Moreover, we found that progesterone could induce the expression of miR-378a-3p in decidual cells. LIMITATIONS, REASONS FOR CAUTION This study focused on the function of miR-378a-3p and its target Caspase-3, however, numerous other targets and miRNAs may also be responsible for the pathogenesis of EPL. Therefore, further studies are required to elucidate the role of miRNAs in EPL. WIDER IMPLICATIONS OF THE FINDINGS Our findings indicate that miR-378a-3p may contribute to the development of EPL, and that it could serve as a new potential predictive and therapeutic target of progesterone-treatment for EPL. STUDY FUNDING/COMPETING INTEREST This study was supported by National Basic Research Program of China (No.2012CB944900); National Science Foundation of China (No.31471405 and 81490742, No.81361120246); The National Science and Technology Support Program (No.2012BA132B00). Authors declare no competing interests.
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Affiliation(s)
- Lihua Hong
- Women's Hospital, Zhejiang University Medical College, Hangzhou 310006, P.R. China.,Key Laboratory of Reproductive Genetics, Ministry of Education (Zhejiang University), Hangzhou 310058, China
| | - Tiantian Yu
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 20030, China
| | - Haiyan Xu
- Key Laboratory of Reproductive Genetics, Ministry of Education (Zhejiang University), Hangzhou 310058, China
| | - Ningning Hou
- Women's Hospital, Zhejiang University Medical College, Hangzhou 310006, P.R. China.,Key Laboratory of Reproductive Genetics, Ministry of Education (Zhejiang University), Hangzhou 310058, China
| | - Qi Cheng
- Women's Hospital, Zhejiang University Medical College, Hangzhou 310006, P.R. China.,Key Laboratory of Reproductive Genetics, Ministry of Education (Zhejiang University), Hangzhou 310058, China
| | - Lihua Lai
- Institute of Immunology, School of Medicine, Zhejiang University, Hangzhou 310058, China
| | - Qingqing Wang
- Institute of Immunology, School of Medicine, Zhejiang University, Hangzhou 310058, China
| | - Jianzhong Sheng
- Department of Pathology and Pathophysiology, School of Medicine, Zhejiang University, Zhejiang 310058, China
| | - Hefeng Huang
- Women's Hospital, Zhejiang University Medical College, Hangzhou 310006, P.R. China.,The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 20030, China.,Key Laboratory of Reproductive Genetics, Ministry of Education (Zhejiang University), Hangzhou 310058, China
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19
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Chen Q, Gao R, Geng Y, Chen X, Liu X, Zhang L, Mu X, Ding Y, Wang Y, He J. Decreased autophagy was implicated in the decreased apoptosis during decidualization in early pregnant mice. J Mol Histol 2018; 49:589-597. [PMID: 30298448 DOI: 10.1007/s10735-018-9797-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Accepted: 09/26/2018] [Indexed: 11/25/2022]
Abstract
Folate deficiency is a major risk factor of birth defects. Mechanistic studies on folate deficiency resulting in birth defects have mainly focused on fetal development. There have been few studies on folate deficiency from the point of view of the mother's uterus. In our previous study, we demonstrated that folate deficiency inhibits apoptosis of decidual cells, thereby restraining decidualization of the endometrium and impairing pregnancy. In this study, we further investigated the potential mechanism by which folate deficiency decreases endometrial apoptosis during decidualization. To investigate whether endometrium autophagy was inhibited under folate deficiency during decidualization, we performed real-time PCR for endometrial LC3 and P62 on day 6 (D6) to D8 of pregnancy in mice, and both were significantly changed compared to non-folate-deficient mice. Western blots showed that LC3-II and P62 were also changed in folate-deficient mice. Compared with control mice, a few punctuate LC3-II structures were detected in the folate deficiency group by immunofluorescence. Transmission electron micrographs of decidual cells on D8 showed that there were no evident autophagosomes in the folate deficiency group. In addition, apoptosis-related protein analysis by western blotting, TUNEL staining and flow cytometry showed that decreased endometrial apoptosis on D8 of pregnancy under folate deficiency was reversed after treatment with rapamycin, an autophagy inducer. ROS measurement showed that the endometrium ROS level was reduced by folate deficiency and that rapamycin reversed this effect on day 8 of pregnancy. All the results suggest that inhibiting endometrial autophagy may be implicated in the decreased endometrial apoptosis under folate deficiency during decidualization.
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Affiliation(s)
- Qiutong Chen
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, No. 1 Yixueyuan Road, Yuzhong District, Box 197, Chongqing, 400016, People's Republic of China
| | - Rufei Gao
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, No. 1 Yixueyuan Road, Yuzhong District, Box 197, Chongqing, 400016, People's Republic of China
| | - Yanqing Geng
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, No. 1 Yixueyuan Road, Yuzhong District, Box 197, Chongqing, 400016, People's Republic of China
| | - Xuemei Chen
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, No. 1 Yixueyuan Road, Yuzhong District, Box 197, Chongqing, 400016, People's Republic of China
| | - Xueqing Liu
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, No. 1 Yixueyuan Road, Yuzhong District, Box 197, Chongqing, 400016, People's Republic of China
| | - Lei Zhang
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, No. 1 Yixueyuan Road, Yuzhong District, Box 197, Chongqing, 400016, People's Republic of China
| | - Xinyi Mu
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, No. 1 Yixueyuan Road, Yuzhong District, Box 197, Chongqing, 400016, People's Republic of China
| | - Yubin Ding
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, No. 1 Yixueyuan Road, Yuzhong District, Box 197, Chongqing, 400016, People's Republic of China
| | - Yingxiong Wang
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, No. 1 Yixueyuan Road, Yuzhong District, Box 197, Chongqing, 400016, People's Republic of China
| | - Junlin He
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, No. 1 Yixueyuan Road, Yuzhong District, Box 197, Chongqing, 400016, People's Republic of China.
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20
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Long J, Yang CS, He JL, Liu XQ, Ding YB, Chen XM, Tong C, Peng C, Wang YX, Gao RF. FOXO3a is essential for murine endometrial decidualization through cell apoptosis during early pregnancy. J Cell Physiol 2018; 234:4154-4166. [PMID: 30132880 DOI: 10.1002/jcp.27167] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Accepted: 07/17/2018] [Indexed: 12/19/2022]
Abstract
Embryo implantation is essential for normal pregnancy, and the process of decidualization is critical for embryo implantation. However, the mechanism of decidualization during early pregnancy is still unknown. Forkhead box O3a (FOXO3a) is the most important functional transcription factor of the forkhead box family and is a highly conserved transcription factor of apoptosis-related genes. In the mouse uterus, FOXO3a was found to be expressed regularly from Days 1-7 of early pregnancy. Upon further exploration, it was found that FOXO3a was expressed at significantly higher levels at the implantation site than at the interimplantation site on Days 5-7 of pregnancy. Under artificial decidualization, FOXO3a was highly expressed in the first and second decidual zones. After decidualization, the expression of FOXO3a was significantly increased both in vivo and vitro. In primary stromal cells, apoptosis was reduced by decreased expression of FOXO3a after inducing decidualization. Moreover, when FOXO3a-small interfering RNA was transfected into the uteri of mice, the expression of decidualization- and apoptosis-related factors was impaired. Thus, FOXO3a might play an important role in decidualization during early pregnancy, and cell apoptosis might be one of pathways for FOXO3a-regulated decidualization.
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Affiliation(s)
- Jing Long
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing, China.,Joint International Research Laboratory of Reproduction and Development, Chongqing Medical University, Chongqing, China
| | - Cheng-Shun Yang
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing, China.,Joint International Research Laboratory of Reproduction and Development, Chongqing Medical University, Chongqing, China
| | - Jun-Lin He
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing, China.,Joint International Research Laboratory of Reproduction and Development, Chongqing Medical University, Chongqing, China
| | - Xue-Qing Liu
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing, China.,Joint International Research Laboratory of Reproduction and Development, Chongqing Medical University, Chongqing, China
| | - Yu-Bin Ding
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing, China.,Joint International Research Laboratory of Reproduction and Development, Chongqing Medical University, Chongqing, China
| | - Xue-Mei Chen
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing, China.,Joint International Research Laboratory of Reproduction and Development, Chongqing Medical University, Chongqing, China
| | - Chao Tong
- Joint International Research Laboratory of Reproduction and Development, Chongqing Medical University, Chongqing, China.,Department of Obstetrics and Gynecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Chuan Peng
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,Laboratory of Maternal and Fetal Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Ying-Xiong Wang
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing, China.,Joint International Research Laboratory of Reproduction and Development, Chongqing Medical University, Chongqing, China
| | - Ru-Fei Gao
- Laboratory of Reproductive Biology, School of Public Health and Management, Chongqing Medical University, Chongqing, China.,Joint International Research Laboratory of Reproduction and Development, Chongqing Medical University, Chongqing, China
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21
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Yang Y, Xie Y, Wu M, Geng Y, Li R, Xu L, Liu X, Pan Y. Expression of mmu-miR-96 in the endometrium during early pregnancy and its regulatory effects on stromal cell apoptosis via Bcl2. Mol Med Rep 2017; 15:1547-1554. [PMID: 28259902 PMCID: PMC5364990 DOI: 10.3892/mmr.2017.6212] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2015] [Accepted: 12/12/2016] [Indexed: 01/31/2023] Open
Abstract
Decidualization of endometrial stromal cells is an important feature of implantation and pregnancy. The molecular mechanism underlying decidualization remains unclear, particularly regarding the microRNA (miRNA/miR) regulation of this process. The present study revealed the temporal and spatial distribution of mmu-miR-96 in the mouse uterus during early pregnancy by reverse transcription-quantitative polymerase chain reaction and in situ hybridization. In addition, primary stromal cells were isolated from the mouse uterus and used to explore the role of mmu-miR-96 in decidualization. The results demonstrated that mmu-miR-96 was highly expressed in stromal cells during pregnancy, and was upregulated at implantation sites. In addition, mmu-miR-96 was strongly expressed during decidualization, which indicates that it may serve a role in the decidualization of stromal cells. Based on existing reports, mmu-miR-96 participates in apoptosis; therefore the present study investigated its effects on the apoptosis of primary endometrial stromal cells. The results indicated that overexpression of mmu-miR-96 may induce apoptosis of stromal cells. In further studies regarding the underlying mechanism, the target genes of mmu-miR-96 were screened by bioinformatics analysis, and it was confirmed that B-cell lymphoma 2, an anti-apoptotic gene, was the target of mmu-miR-96, as determined using a reporter gene assay. In conclusion, the present study suggested that mmu-miR-96 participates in the decidualization of endometrial stromal cells in mice, thereby serving a key role in pregnancy.
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Affiliation(s)
- Yuan Yang
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Yi Xie
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Mengyun Wu
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Yanqing Geng
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Rong Li
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China
| | - Lei Xu
- Laboratory Animal Center, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Xueqing Liu
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Yongquan Pan
- Laboratory Animal Center, Chongqing Medical University, Chongqing 400016, P.R. China
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22
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Li Y, Gao R, Liu X, Chen X, Liao X, Geng Y, Ding Y, Wang Y, He J. Folate Deficiency Could Restrain Decidual Angiogenesis in Pregnant Mice. Nutrients 2015; 7:6425-45. [PMID: 26247969 PMCID: PMC4555123 DOI: 10.3390/nu7085284] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2015] [Revised: 03/27/2015] [Accepted: 07/20/2015] [Indexed: 11/24/2022] Open
Abstract
The mechanism of birth defects induced by folate deficiency was focused on mainly in fetal development. Little is known about the effect of folate deficiency on the maternal uterus, especially on decidual angiogenesis after implantation which establishes vessel networks to support embryo development. The aim of this study was to investigate the effects of folate deficiency on decidual angiogenesis. Serum folate levels were measured by electrochemiluminescence. The status of decidual angiogenesis was examined by cluster designation 34 (CD34) immunohistochemistry and the expression of angiogenic factors, including vascular endothelial growth factor A (VEGFA), placental growth factor (PLGF), and VEGF receptor 2 (VEGFR2) were also tested. Serum levels of homocysteine (Hcy), follicle stimulating hormone (FSH), luteinizing hormone (LH), prolactin (PRL), progesterone (P4), and estradiol (E2) were detected by Enzyme-linked immunosorbent assay. The folate-deficient mice had a lower folate level and a higher Hcy level. Folate deficiency restrained decidual angiogenesis with significant abnormalities in vascular density and the enlargement and elongation of the vascular sinus. It also showed a reduction in the expressions of VEGFA, VEGFR2, and PLGF. In addition, the serum levels of P4, E2, LH, and PRL were reduced in folate-deficient mice, and the expression of progesterone receptor (PR) and estrogen receptor α (ERα) were abnormal. These results indicated that folate deficiency could impaire decidual angiogenesis and it may be related to the vasculotoxic properties of Hcy and the imbalance of the reproductive hormone.
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Affiliation(s)
- Yanli Li
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing 400016, China.
| | - Rufei Gao
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing 400016, China.
| | - Xueqing Liu
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing 400016, China.
| | - Xuemei Chen
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing 400016, China.
| | - Xinggui Liao
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing 400016, China.
| | - Yanqing Geng
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing 400016, China.
| | - Yubin Ding
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing 400016, China.
| | - Yingxiong Wang
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing 400016, China.
| | - Junlin He
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Chongqing 400016, China.
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