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Shao J, Jiang G, Li Y, Wang M, Tang T, Wang J, Jia X, Lai S. Let-7a-5p Regulates Animal Lipid Accumulation by Targeting Srebf2 and Thbs1 Signaling. Int J Mol Sci 2024; 25:894. [PMID: 38255968 PMCID: PMC10815625 DOI: 10.3390/ijms25020894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 11/17/2023] [Accepted: 11/22/2023] [Indexed: 01/24/2024] Open
Abstract
Recently, the trend of obesity is becoming increasingly prevalent, and the underlying pathogenesis of obesity is complex and needs to be researched further. In this study, we report a decreased expression of let-7a-5p in the white adipose tissue (WAT) of animals with obesity. Using the RNA oligo, let-7a-5p over-expression or suppression-expression is achieved, impacting the proliferation and differentiation of preadipocytes in vitro. Srebf2 mechanistically interacts with the metabolic effect of let-7a-5p and participates in lipid accumulation by regulating Srebf2 downstream signaling. Moreover, let-7a-5p binds to Thbs1 to interact with the PI3K-AKT-mTOR pathway, down-regulating the phosphorylation levels of AKT, mTOR, and S6K1 to decrease lipid accumulation. In conclusion, our study highlights the physiological significance of let-7a-5p in lipid accumulation and suggests that the let-7a-5p/Srebf2 and let-7a-5p/Thbs1/PI3K-AKT-mTOR axes may represent potential mechanisms for controlling lipid accumulation in obesity.
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Affiliation(s)
| | | | | | | | | | | | | | - Songjia Lai
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China; (J.S.); (G.J.); (Y.L.); (M.W.); (T.T.); (J.W.); (X.J.)
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Zhang H, Wang Z, Zhou Q, Cao Z, Jiang Y, Xu M, Liu J, Zhou J, Yan G, Sun H. Downregulated INHBB in endometrial tissue of recurrent implantation failure patients impeded decidualization through the ADCY1/cAMP signalling pathway. J Assist Reprod Genet 2023; 40:1135-1146. [PMID: 36913138 PMCID: PMC10239411 DOI: 10.1007/s10815-023-02762-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 02/22/2023] [Indexed: 03/14/2023] Open
Abstract
PURPOSE This study aims to identify the mechanism of Inhibin Subunit Beta B (INHBB), a member of the transforming growth factor-β (TGF-β) family involved in the regulation of human endometrial stromal cells (HESCs) decidualization in recurrent implantation failure (RIF). METHODS RNA-seq was conducted to identify the differentially expressed genes in the endometria from control and RIF patients. RT-qPCR, WB, and immunohistochemistry were performed to analyse the expression levels of INHBB in endometrium and decidualised HESCs. RT-qPCR and immunofluorescence were used to detect changes in the decidual marker genes and cytoskeleton after knockdown INHBB. Then, RNA-seq was used to dig out the mechanism of INHBB regulating decidualization. The cAMP analogue (forskolin) and si-INHBB were used to investigate the involvement of INHBB in the cAMP signalling pathway. The correlation of INHBB and ADCY expression was analysed by Pearson's correlation analysis. RESULTS Our results showed significantly reduced expression of INHBB in endometrial stromal cells of women with RIF. In addition, INHBB was increased in the endometrium of the secretory phase and significantly induced in in-vitro decidualization of HESCs. Notably, with RNA-seq and siRNA-mediated knockdown approaches, we demonstrated that the INHBB-ADCY1-mediated cAMP signalling pathway regulates the reduction of decidualization. We found a positive association between the expression of INHBB and ADCY1 in endometria with RIF (R2 = 0.3785, P = 0.0005). CONCLUSIONS The decline of INHBB in HESCs suppressed ADCY1-induced cAMP production and cAMP-mediated signalling, which attenuated decidualization in RIF patients, indicating that INHBB is an essential component in the decidualization process.
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Affiliation(s)
- Hui Zhang
- Department of Obstetrics and Gynecology, Center for Reproductive Medicine, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, China
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing, China
| | - Zhilong Wang
- Department of Obstetrics and Gynecology, Center for Reproductive Medicine, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, China
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing, China
| | - Quan Zhou
- Department of Obstetrics and Gynecology, Center for Reproductive Medicine, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, China
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing, China
| | - Zhiwen Cao
- Department of Obstetrics and Gynecology, Center for Reproductive Medicine, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, China
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing, China
| | - Yue Jiang
- Department of Obstetrics and Gynecology, Center for Reproductive Medicine, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, China
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing, China
| | - Manlin Xu
- Department of Obstetrics and Gynecology, Center for Reproductive Medicine, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, China
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing, China
| | - Jingyu Liu
- Department of Obstetrics and Gynecology, Center for Reproductive Medicine, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, China
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing, China
| | - Jidong Zhou
- Department of Obstetrics and Gynecology, Center for Reproductive Medicine, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, China
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing, China
| | - Guijun Yan
- Department of Obstetrics and Gynecology, Center for Reproductive Medicine, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, China.
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing, China.
- Center for Molecular Reproductive Medicine, Nanjing University, Nanjing, China.
| | - Haixiang Sun
- Department of Obstetrics and Gynecology, Center for Reproductive Medicine, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, China.
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing, China.
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, China.
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Vegas AR, Podico G, Canisso IF, Bollwein H, Fröhlich T, Bauersachs S, Almiñana C. Dynamic regulation of the transcriptome and proteome of the equine embryo during maternal recognition of pregnancy. FASEB Bioadv 2022; 4:775-797. [PMID: 36479207 PMCID: PMC9721094 DOI: 10.1096/fba.2022-00063] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 08/31/2022] [Accepted: 09/15/2022] [Indexed: 06/26/2024] Open
Abstract
During initial maternal recognition of pregnancy (MRP), the equine embryo displays a series of unique events characterized by rapid blastocyst expansion, secretion of a diverse array of molecules, and transuterine migration to interact with the uterine surface. Up to date, the intricate transcriptome and proteome changes of the embryo underlying these events have not been critically studied in horses. Thus, the objective of this study was to perform an integrative transcriptomic (including mRNA, miRNAs, and other small non-coding RNAs) and proteomic analysis of embryos collected from days 10 to 13 of gestation. The results revealed dynamic transcriptome profiles with a total of 1311 differentially expressed genes, including 18 microRNAs (miRNAs). Two main profiles for mRNAs and miRNAs were identified, one with higher expression in embryos ≤5 mm and the second with higher expression in embryos ≥7 mm. At the protein level, similar results were obtained, with 259 differentially abundant proteins between small and large embryos. Overall, the findings demonstrated fine-tuned transcriptomic and proteomic regulations in the developing embryo associated with embryo growth. The identification of specific regulation of mRNAs, proteins, and miRNAs on days 12 and 13 of gestation suggested these molecules as pivotal for embryo development and as involved in MRP, and in establishment of pregnancy in general. In addition, the results revealed new insights into prostaglandin synthesis by the equine embryo, miRNAs and genes potentially involved in modulation of the maternal immune response, regulation of endometrial receptivity and of late implantation in the mare.
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Affiliation(s)
- Alba Rudolf Vegas
- Functional Genomics GroupInstitute of Veterinary Anatomy, Vetsuisse‐Faculty, University of ZurichLindau(ZH)Switzerland
| | - Giorgia Podico
- Department of Veterinary Clinical Medicine, College of Veterinary MedicineUniversity of Illinois Urbana ChampaignUrbanaIllinoisUSA
| | - Igor F. Canisso
- Department of Veterinary Clinical Medicine, College of Veterinary MedicineUniversity of Illinois Urbana ChampaignUrbanaIllinoisUSA
| | - Heinrich Bollwein
- Clinic of Reproductive Medicine, Department for Farm Animals, Vetsuisse‐FacultyUniversity of ZurichZurichSwitzerland
| | - Thomas Fröhlich
- Gene Center, Laboratory for Functional Genome AnalysisMunichGermany
| | - Stefan Bauersachs
- Functional Genomics GroupInstitute of Veterinary Anatomy, Vetsuisse‐Faculty, University of ZurichLindau(ZH)Switzerland
| | - Carmen Almiñana
- Functional Genomics GroupInstitute of Veterinary Anatomy, Vetsuisse‐Faculty, University of ZurichLindau(ZH)Switzerland
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