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Teng Z, Hao L, Yang R, Song J, Wang Z, Jiao Y, Fang J, Zheng S, Ma Z, Chen X, Liu S, Cheng Y. Key pituitary miRNAs mediate the expression of pig GHRHR splice variants by regulating splice factors. Int J Biol Macromol 2022; 208:208-218. [PMID: 35306020 DOI: 10.1016/j.ijbiomac.2022.03.070] [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: 01/13/2022] [Revised: 03/11/2022] [Accepted: 03/11/2022] [Indexed: 11/28/2022]
Abstract
The growth hormone releasing hormone receptor (GHRHR) is well documented in organism growth and its alternative splicing may generate multiple functional GHRHR splice variants (SVs). Our previous study has demonstrated the key pituitary miRNAs (let-7e and miR-328-5p) in pig regulated the expression of GHRHR SVs by directly targeting to them. And according to recent reports, the interplay between miRNA-based silencing of mRNAs and alternative splicing of pre-mRNAs is a crucial post-transcriptional mechanism. In this study, SF3B3 and CPSF4 were firstly excavated as the splice factors that involved in the formation of GHRHR SVs mediated by let-7e and miR-328-5p through the comparation of the expression relations of GHRHR SVs, let-7e/miR-328-5p and SF3B3/CPSF4 in pituitary tissues between Landrace pigs and BaMa pigs, as well as the prediction of the target relations of let-7e/miR-328-5p with SF3B3 and/or CPSF4. SF3B3 and CPSF4 targeted by let-7e and miR-328-5p were further verified by performing dual-luciferase reporter assays and detecting the expression of target transcripts. Then the RT-PCR, RT-qPCR and Western blot assays were used to confirm SF3B3 and CPSF4 were involved in the formation of the GHRHR SVs, and in this process, let-7e and miR-328-5p mediated GHRHR SVs by regulating SF3B3 and CPSF4. Finally, the target site of SF3B3 on pre-GHRHR was on the Exon 12 to Exon14, while CPSF4 acted on the other fragments of the pre-GHRHR, which were explored by dual-luciferase reporter system preliminarily. To the best of our knowledge, this paper is the first to report the miRNAs regulate GHRHR SVs indirectly by splice factors.
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Affiliation(s)
- Zhaohui Teng
- College of Animal Science, Jilin University, Changchun, Jilin 130062, China
| | - Linlin Hao
- College of Animal Science, Jilin University, Changchun, Jilin 130062, China
| | - Rui Yang
- College of Animal Science, Jilin University, Changchun, Jilin 130062, China
| | - Jie Song
- College of Animal Science, Jilin University, Changchun, Jilin 130062, China
| | - Zhaoguo Wang
- College of Animal Science, Jilin University, Changchun, Jilin 130062, China
| | - Yingying Jiao
- College of Animal Science, Jilin University, Changchun, Jilin 130062, China
| | - Jiayuan Fang
- College of Animal Science, Jilin University, Changchun, Jilin 130062, China
| | - Shuo Zheng
- College of Animal Science, Jilin University, Changchun, Jilin 130062, China
| | - Ze Ma
- College of Animal Science, Jilin University, Changchun, Jilin 130062, China
| | - Xi Chen
- College of Animal Science, Jilin University, Changchun, Jilin 130062, China
| | - Songcai Liu
- College of Animal Science, Jilin University, Changchun, Jilin 130062, China
| | - Yunyun Cheng
- NHC Key Laboratory of Radiobiology, College of Public Health, Jilin University, Changchun 130021, China.
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Cheng Y, Chen T, Song J, Teng Z, Wang C, Wang S, Lu G, Feng T, Qi Q, Xi Q, Liu S, Hao L, Zhang Y. Pituitary miRNAs target GHRHR splice variants to regulate GH synthesis by mediating different intracellular signalling pathways. RNA Biol 2020; 17:1754-1766. [PMID: 32508238 DOI: 10.1080/15476286.2020.1778295] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
Growth hormone (GH), whose synthesis and release are mainly regulated by intracellular signals mediated by growth hormone-releasing hormone receptor (GHRHR), is one of the major pituitary hormones and critical regulators of organism growth, metabolism, and immunoregulation. Pig GHRHR splice variants (SVs) may activate different signalling pathways via the variable C-terminal by alternative splicing, and SVs have the potential to change microRNA (miRNA) binding sites. In this study, we first confirmed the existence of pig GHRHR SVs (i.e., GHRHR, GHRHR SV1 and SV2) and demonstrated the inhibitory effects of critical pituitary miRNAs (i.e., let-7e and miR-328-5p) on GH synthesis and cell proliferation of primary pituitary cells. The SVs of GHRHR targeted by let-7e and miR-328-5p were predicted via bioinformatics analysis and verified by performing dual-luciferase reporter assays and detecting the expression of target transcripts. The differential responses of let-7e, and miR-328-5p to GH-releasing hormone and the changes in signalling pathways mediated by GHRHR suggested that let-7e and miR-328-5p were involved in GH synthesis mediated by GHRHR SVs, indicating that the two miRNAs played different roles by different ways. Finally, results showed that the protein coded by the GHRHR transcript regulated GH through the NO/NOS signalling pathway, whereas that coded by SV1 and SV2 regulated GH through the PKA/CREB signalling pathway, which was confirmed by the changes in signalling pathways after transfecting the expression vectors of GHRHR SVs to GH3 cells. To the best of our knowledge, this paper is the first to report pituitary miRNAs regulate GH synthesis by targeting the different SVs of GHRHR.
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Affiliation(s)
- Yunyun Cheng
- Jilin Provincial Key Laboratory of Animal Embryo Engineering, College of Animal Sciences, Jilin University , Changchun, China.,Guangdong Provincial Key Laboratory of Animal Nutritional Regulation, National Engineering Research Center for Breeding Swine Industry, Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University , Guangzhou, China
| | - Ting Chen
- Guangdong Provincial Key Laboratory of Animal Nutritional Regulation, National Engineering Research Center for Breeding Swine Industry, Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University , Guangzhou, China
| | - Jie Song
- Jilin Provincial Key Laboratory of Animal Embryo Engineering, College of Animal Sciences, Jilin University , Changchun, China
| | - Zhaohui Teng
- Jilin Provincial Key Laboratory of Animal Embryo Engineering, College of Animal Sciences, Jilin University , Changchun, China.,Research and Development Centre, Dalian Mogue Biotech Co., Ltd , Dalian, China
| | - Chunli Wang
- Jilin Provincial Key Laboratory of Animal Embryo Engineering, College of Animal Sciences, Jilin University , Changchun, China
| | - Siyao Wang
- Jilin Provincial Key Laboratory of Animal Embryo Engineering, College of Animal Sciences, Jilin University , Changchun, China
| | - Guanhong Lu
- Jilin Provincial Key Laboratory of Animal Embryo Engineering, College of Animal Sciences, Jilin University , Changchun, China
| | - Tianqi Feng
- Jilin Provincial Key Laboratory of Animal Embryo Engineering, College of Animal Sciences, Jilin University , Changchun, China
| | - Qien Qi
- School of Life Science and Engineering, Foshan University , Foshan China
| | - Qianyun Xi
- Guangdong Provincial Key Laboratory of Animal Nutritional Regulation, National Engineering Research Center for Breeding Swine Industry, Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University , Guangzhou, China
| | - Songcai Liu
- Jilin Provincial Key Laboratory of Animal Embryo Engineering, College of Animal Sciences, Jilin University , Changchun, China
| | - Linlin Hao
- Jilin Provincial Key Laboratory of Animal Embryo Engineering, College of Animal Sciences, Jilin University , Changchun, China
| | - Yongliang Zhang
- Guangdong Provincial Key Laboratory of Animal Nutritional Regulation, National Engineering Research Center for Breeding Swine Industry, Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University , Guangzhou, China
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Cheng Y, Chen T, Song J, Qi Q, Wang C, Xi Q, Liu S, Hao L, Zhang Y. miR-709 inhibits GHRP6 induced GH synthesis by targeting PRKCA in pituitary. Mol Cell Endocrinol 2020; 506:110763. [PMID: 32084499 DOI: 10.1016/j.mce.2020.110763] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 02/02/2020] [Accepted: 02/18/2020] [Indexed: 02/07/2023]
Abstract
Pituitary growth hormone (GH) plays an essential role in processes of organism growth and metabolism. MicroRNA (miRNA) could also participate in diverse biological processes. However, the role of miRNA in the regulation of pituitary GH during the growth process remains unclear. In this study, we firstly confirmed that the second highly expressed pituitary miRNA (miR-709) significantly inhibited the GH synthesis and suppressed the viability of GH3 cells. The bioinformatics analysis and dual luciferase report system were used to ascertain the PRKCA is the direct target gene of miR-709, which is the coding gene of PKCα. Then the transcription and translation levels of Prkca were obvious reduced by the over-expression of miR-709 in GH3 cells, followed by the inhibition of the transcription factor (CREB1) of Gh1 gene and the ERK1/2 signaling pathway or the possible cross-talk signaling pathway (cAMP/PKA signaling pathway) detected by western blot, suggesting that ERK1/2 maybe an important factor involved in the GH3 cell viability mediated by PKCα. At last, GHRP6 increased PKCα and GH expression but reduced miR-709 expression in vitro and vivo assays, and this conclusion was further confirmed by the result of GHRP6 attenuated the inhibition of miR-709 on GH expression. These findings will provide new molecular mechanism on the regulation of pituitary GH.
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Affiliation(s)
- Yunyun Cheng
- Guangdong Provincial Key Laboratory of Animal Nutritional Regulation, National Engineering Research Center for Breeding Swine Industry, Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, 483 Wushan Road, Guangzhou, 510642, China
| | - Ting Chen
- Guangdong Provincial Key Laboratory of Animal Nutritional Regulation, National Engineering Research Center for Breeding Swine Industry, Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, 483 Wushan Road, Guangzhou, 510642, China
| | - Jie Song
- Jilin Provincial Key Laboratory of Animal Embryo Engineering, College of Animal Sciences, Jilin University, 5333 Xian Road, Changchun, 130062, China
| | - Qien Qi
- School of Life Science and Engineering, Foshan University, Foshan, 528231, China
| | - Chunli Wang
- Jilin Provincial Key Laboratory of Animal Embryo Engineering, College of Animal Sciences, Jilin University, 5333 Xian Road, Changchun, 130062, China
| | - Qianyun Xi
- Guangdong Provincial Key Laboratory of Animal Nutritional Regulation, National Engineering Research Center for Breeding Swine Industry, Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, 483 Wushan Road, Guangzhou, 510642, China
| | - Songcai Liu
- Jilin Provincial Key Laboratory of Animal Embryo Engineering, College of Animal Sciences, Jilin University, 5333 Xian Road, Changchun, 130062, China
| | - Linlin Hao
- Jilin Provincial Key Laboratory of Animal Embryo Engineering, College of Animal Sciences, Jilin University, 5333 Xian Road, Changchun, 130062, China.
| | - Yongliang Zhang
- Guangdong Provincial Key Laboratory of Animal Nutritional Regulation, National Engineering Research Center for Breeding Swine Industry, Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, 483 Wushan Road, Guangzhou, 510642, China.
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Xu J, Zhu C, Zhang M, Tong Q, Wan X, Liao Z, Cai X, Xu Y, Yuan Y, Wang L, Zhu X, Wang S, Gao P, Xi Q, Xu Y, Jiang Q, Shu G. Arginine reverses growth hormone resistance through the inhibition of toll-like receptor 4-mediated inflammatory pathway. Metabolism 2018; 79:10-23. [PMID: 29080813 DOI: 10.1016/j.metabol.2017.10.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2017] [Revised: 09/09/2017] [Accepted: 10/04/2017] [Indexed: 01/05/2023]
Abstract
OBJECTIVE Growth hormone stimulates growth by increasing insulin-like growth factor 1 expression and secretion. In the presence of insufficient nutrients, GH increases, whereas IGF-1 expression becomes severely suppressed, leading to GH resistance. This study aimed to explore the effect of arginine (Arg) on GH resistance during malnutrition and to describe its underlying mechanism. METHODS C57BL/6J mice were injected intraperitoneally with Arg for 1h or subjected to caloric restriction with Arg supplement in drinking water for 18days. HepG2 cells were exposed to different Arg concentrations for 24h. Signaling pathway agonists/inhibitors, siRNA, and overexpression plasmids were used to investigate the underlying molecular mechanism. Liver-specific toll-like receptor (TLR4) knockout mice were utilized to clarify the role of TLR4 in Arg-induced IGF-I expression and secretion. RESULTS Arg inhibited the TLR4 downstream pathway by binding to TLR4 and consequently activated Janus kinase 2/signal transducer and activator of transcription 5 signaling pathway. As a result, IGF-1 transcription and secretion increased. Arg activity was absent in liver-specific TLR4 knockout mice and was greatly suppressed in liver with overexpressed TLR4, suggesting that hepatic TLR4 was required and sufficient to induce GH resistance. By contrast, the mammalian target of rapamycin pathway was unnecessary for Arg activity. Arg not only significantly increased IGF-1 expression and secretion under acute fasting and chronic CR conditions but also attenuated body weight loss. CONCLUSIONS Our results demonstrate a previously unappreciated pathway involving Arg that reverses GH resistance and alleviates malnutrition-induced growth restriction through the inhibition of TLR4-mediated inflammatory pathway.
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Affiliation(s)
- Jingren Xu
- Guangdong Province Key Laboratory of Animal Nutritional Regulation, 483 Wushan Road, Tianhe District, Guangzhou, Guangdong 510642, China
| | - Canjun Zhu
- Guangdong Province Key Laboratory of Animal Nutritional Regulation, 483 Wushan Road, Tianhe District, Guangzhou, Guangdong 510642, China
| | - Mengyuan Zhang
- Guangdong Province Key Laboratory of Animal Nutritional Regulation, 483 Wushan Road, Tianhe District, Guangzhou, Guangdong 510642, China
| | - Qingchun Tong
- Brown Foundation Institute of Molecular Medicine, The University of Texas Health Science Center at Houston, 7000 Fannin, Suite 1800, Houston, TX 77030, USA
| | - Xiaojuan Wan
- Guangdong Province Key Laboratory of Animal Nutritional Regulation, 483 Wushan Road, Tianhe District, Guangzhou, Guangdong 510642, China
| | - Zhengrui Liao
- Guangdong Province Key Laboratory of Animal Nutritional Regulation, 483 Wushan Road, Tianhe District, Guangzhou, Guangdong 510642, China
| | - Xingcai Cai
- Guangdong Province Key Laboratory of Animal Nutritional Regulation, 483 Wushan Road, Tianhe District, Guangzhou, Guangdong 510642, China
| | - Yaqiong Xu
- Guangdong Province Key Laboratory of Animal Nutritional Regulation, 483 Wushan Road, Tianhe District, Guangzhou, Guangdong 510642, China
| | - Yexian Yuan
- Guangdong Province Key Laboratory of Animal Nutritional Regulation, 483 Wushan Road, Tianhe District, Guangzhou, Guangdong 510642, China
| | - Lina Wang
- Guangdong Province Key Laboratory of Animal Nutritional Regulation, 483 Wushan Road, Tianhe District, Guangzhou, Guangdong 510642, China
| | - Xiaotong Zhu
- Guangdong Province Key Laboratory of Animal Nutritional Regulation, 483 Wushan Road, Tianhe District, Guangzhou, Guangdong 510642, China
| | - Songbo Wang
- Guangdong Province Key Laboratory of Animal Nutritional Regulation, 483 Wushan Road, Tianhe District, Guangzhou, Guangdong 510642, China
| | - Ping Gao
- Guangdong Province Key Laboratory of Animal Nutritional Regulation, 483 Wushan Road, Tianhe District, Guangzhou, Guangdong 510642, China
| | - Qianyun Xi
- Guangdong Province Key Laboratory of Animal Nutritional Regulation, 483 Wushan Road, Tianhe District, Guangzhou, Guangdong 510642, China; National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, 483 Wushan Road, Tianhe District, Guangzhou, Guangdong 510642, China
| | - Yong Xu
- Department of Molecular and Cellular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Qingyan Jiang
- Guangdong Province Key Laboratory of Animal Nutritional Regulation, 483 Wushan Road, Tianhe District, Guangzhou, Guangdong 510642, China; National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, 483 Wushan Road, Tianhe District, Guangzhou, Guangdong 510642, China.
| | - Gang Shu
- Guangdong Province Key Laboratory of Animal Nutritional Regulation, 483 Wushan Road, Tianhe District, Guangzhou, Guangdong 510642, China; National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, 483 Wushan Road, Tianhe District, Guangzhou, Guangdong 510642, China.
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Exercise training reverses the negative effects of chronic L-arginine supplementation on insulin sensitivity. Life Sci 2017; 191:17-23. [DOI: 10.1016/j.lfs.2017.10.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Revised: 09/24/2017] [Accepted: 10/01/2017] [Indexed: 12/14/2022]
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To Unveil the Molecular Mechanisms of Qi and Blood through Systems Biology-Based Investigation into Si-Jun-Zi-Tang and Si-Wu-Tang formulae. Sci Rep 2016; 6:34328. [PMID: 27677604 PMCID: PMC5039637 DOI: 10.1038/srep34328] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Accepted: 09/12/2016] [Indexed: 11/24/2022] Open
Abstract
Traditional Chinese Medicine (TCM) is increasingly getting clinical application worldwide. But its theory like QI-Blood is still abstract. Actually, Qi deficiency and blood deficiency, which were treated by Si-Jun-Zi-Tang (SJZT) and Si-Wu-Tang (SWT) respectively, have characteristic clinical manifestations. Here, we analyzed targets of the ingredients in SJZT and SWT to unveil potential biologic mechanisms between Qi deficiency and blood deficiency through biomedical approaches. First, ingredients in SWT and SJZT were retrieved from TCMID database. The genes targeted by these ingredients were chosen from STITCH. After enrichment analysis by Gene Ontology (GO) and DAVID, enriched GO terms with p-value less than 0.01 were collected and interpreted through DAVID and KEGG. Then a visualized network was constructed with ClueGO. Finally, a total of 243 genes targeted by 195 ingredients of SWT formula and 209 genes targeted by 61 ingredients of SJZT were obtained. Six metabolism pathways and two environmental information processing pathways enriched by targets were correlated with 2 or more herbs in SWT and SJZT formula, respectively.
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