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Liu J, Guo C, Fu J, Liu D, Liu G, Sun B, Deng M, Guo Y, Li Y. Identification and Functional Analysis of circRNAs during Goat Follicular Development. Int J Mol Sci 2024; 25:7548. [PMID: 39062792 PMCID: PMC11277404 DOI: 10.3390/ijms25147548] [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: 05/07/2024] [Revised: 06/24/2024] [Accepted: 07/08/2024] [Indexed: 07/28/2024] Open
Abstract
Litter size is a crucial quantitative trait in animals, closely linked to follicular development. Circular RNA (circRNA), a type of single-stranded closed-loop endogenous RNA with stable expression, plays pivotal roles in various biological processes, yet its function in goat follicular development remains unclear. In this study, we collected large (follicle diameter > 3 mm) and small (1 mm < follicle diameter < 3 mm) follicles from black goats in the Chuanzhong region for circRNA sequencing, with the aim of elucidating the functional circRNAs that influence follicle development in goats. Differential analysis revealed that 17 circRNAs were upregulated in large follicles, and 28 circRNAs were upregulated in small follicles. Functional enrichment analysis revealed significant enrichment of pathways related to reproduction, including cellular response to follicle-stimulating hormone stimulus, the PI3K-Akt signaling pathway, the MAPK signaling pathway, and the Notch signaling pathway. Based on the ceRNA mechanism, 45 differentially expressed circRNAs were found to target and bind a total of 418 miRNAs, and an intercalation network including miR-324-3p (circRNA2497, circRNA5650), miR-202-5p (circRNA3333, circRNA5501), and miR-493-3p (circRNA4995, circRNA5508) was constructed. In addition, conservation analysis revealed that 2,239 circRNAs were conserved between goats and humans. Prediction of translation potential revealed that 154 circRNAs may potentially utilize both N6-methyladenosine (m6A) and internal ribosome entry site (IRES) translation mechanisms. Furthermore, the differential expression and circularization cleavage sites of five circRNAs were validated through RT-qPCR and DNA sequencing. Our study constructed a circRNA map in goat follicle development, offering a theoretical foundation for enhancing goat reproductive performance.
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Affiliation(s)
- Jie Liu
- College of Animal Science, South China Agricultural University, Guangzhou 510642, China; (J.L.); (C.G.); (B.S.); (M.D.); (Y.G.)
- National Local Joint Engineering Research Center of Livestock and Poultry, South China Agricultural University, Guangzhou 510642, China
| | - Conghui Guo
- College of Animal Science, South China Agricultural University, Guangzhou 510642, China; (J.L.); (C.G.); (B.S.); (M.D.); (Y.G.)
- National Local Joint Engineering Research Center of Livestock and Poultry, South China Agricultural University, Guangzhou 510642, China
| | - Junjie Fu
- College of Animal Science, South China Agricultural University, Guangzhou 510642, China; (J.L.); (C.G.); (B.S.); (M.D.); (Y.G.)
- National Local Joint Engineering Research Center of Livestock and Poultry, South China Agricultural University, Guangzhou 510642, China
| | - Dewu Liu
- College of Animal Science, South China Agricultural University, Guangzhou 510642, China; (J.L.); (C.G.); (B.S.); (M.D.); (Y.G.)
- National Local Joint Engineering Research Center of Livestock and Poultry, South China Agricultural University, Guangzhou 510642, China
| | - Guangbin Liu
- College of Animal Science, South China Agricultural University, Guangzhou 510642, China; (J.L.); (C.G.); (B.S.); (M.D.); (Y.G.)
- National Local Joint Engineering Research Center of Livestock and Poultry, South China Agricultural University, Guangzhou 510642, China
| | - Baoli Sun
- College of Animal Science, South China Agricultural University, Guangzhou 510642, China; (J.L.); (C.G.); (B.S.); (M.D.); (Y.G.)
- National Local Joint Engineering Research Center of Livestock and Poultry, South China Agricultural University, Guangzhou 510642, China
| | - Ming Deng
- College of Animal Science, South China Agricultural University, Guangzhou 510642, China; (J.L.); (C.G.); (B.S.); (M.D.); (Y.G.)
- National Local Joint Engineering Research Center of Livestock and Poultry, South China Agricultural University, Guangzhou 510642, China
| | - Yongqing Guo
- College of Animal Science, South China Agricultural University, Guangzhou 510642, China; (J.L.); (C.G.); (B.S.); (M.D.); (Y.G.)
- National Local Joint Engineering Research Center of Livestock and Poultry, South China Agricultural University, Guangzhou 510642, China
| | - Yaokun Li
- College of Animal Science, South China Agricultural University, Guangzhou 510642, China; (J.L.); (C.G.); (B.S.); (M.D.); (Y.G.)
- National Local Joint Engineering Research Center of Livestock and Poultry, South China Agricultural University, Guangzhou 510642, China
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Sun X, Xia R, Wang Y, Wang F, Liu Z, Xue G, Zhang G. Neuromedin S regulates goat ovarian granulosa cell proliferation and steroidogenesis via endoplasmic reticulum Ca 2+-YAP1-ATF4-c-Jun pathway. J Cell Physiol 2024:e31368. [PMID: 38982727 DOI: 10.1002/jcp.31368] [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: 12/22/2023] [Revised: 06/17/2024] [Accepted: 06/24/2024] [Indexed: 07/11/2024]
Abstract
Neuromedin S (NMS) plays key roles in reproductive regulation, while its function and mechanism in follicular development remain unclear. The current study aims to investigate the specific role and mechanisms of NMS and its receptors in regulating the proliferation and steroidogenesis of ovarian granulosa cells (GCs). Phenotypically, a certain concentration of NMS addition promoted the proliferation and estrogen production of goat GCs, accompanied by an increase in the G1/S cell population and upregulation of the expression levels of cyclin D1, cyclin dependent kinase 6, steroidogenic acute regulatory protein, cytochrome P450, family 11, subfamily A, polypeptide 1, 3beta-hydroxysteroid dehydrogenase, and cytochrome P450, family 11, subfamily A, polypeptide 1, while the effects of NMS treatment were effectively hindered by knockdown of neuromedin U receptor type 2 (NMUR2). Mechanistically, activation of NMUR2 with NMS maintained endoplasmic reticulum (ER) calcium (Ca2+) homeostasis by triggering the PLCG1-IP3R pathway, which helped preserve ER morphology, sustained an appropriate level of endoplasmic reticulum unfolded protein response (UPRer), and suppressed the nuclear translocation of activating transcription factor 4. Moreover, NMS maintained intracellular Ca2+ homeostasis to activate the calmodulin 1-large tumor suppressor kinase 1 pathway, ultimately orchestrating the regulation of goat GC proliferation and estrogen production through the Yes1 associated transcriptional regulator-ATF4-c-Jun pathway. Crucially, the effects of NMS were mitigated by concurrent knockdown of the NMUR2 gene. Collectively, these data suggest that activation of NMUR2 by NMS enhances cell proliferation and estrogen production in goat GCs through modulating the ER and intracellular Ca2+ homeostasis, leading to activation of the YAP1-ATF4-c-Jun pathway. These findings offer valuable insights into the regulatory mechanisms involved in follicular growth and development, providing a novel perspective for future research.
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Affiliation(s)
- Xuan Sun
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, China
| | - Rongxin Xia
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, China
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Yifei Wang
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, China
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Feng Wang
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, China
| | - Zhipeng Liu
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, China
| | - Gang Xue
- Animal Husbandry and Veterinary Station of Haimen District, Nantong City, China
| | - Guomin Zhang
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, China
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
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Zhang Z, Kang Z, Deng K, Li J, Liu Z, Huang X, Wang F, Fan Y. circUSP13 facilitates the fast-to-slow myofiber shift via the MAPK/ERK signaling pathway in goat skeletal muscles. J Cell Physiol 2024; 239:e31226. [PMID: 38591363 DOI: 10.1002/jcp.31226] [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: 11/22/2023] [Revised: 01/29/2024] [Accepted: 02/06/2024] [Indexed: 04/10/2024]
Abstract
Understanding how skeletal muscle fiber proportions are regulated is essential for understanding muscle function and improving the quality of mutton. While circular RNA (circRNA) has a critical function in myofiber type transformation, the specific mechanisms are not yet fully understood. Prior evidence indicates that circular ubiquitin-specific peptidase 13 (circUSP13) can promote myoblast differentiation by acting as a ceRNA, but its potential role in myofiber switching is still unknown. Herein, we found that circUSP13 enhanced slow myosin heavy chain (MyHC-slow) and suppressed MyHC-fast expression in goat primary myoblasts (GPMs). Meanwhile, circUSP13 evidently enhanced the remodeling of the mitochondrial network while inhibiting the autophagy of GPMs. We obtained fast-dominated myofibers, via treatment with rotenone, and further demonstrated the positive role of circUSP13 in the fast-to-slow transition. Mechanistically, activation of the mitogen-activated protein kinase/extracellular signal-regulated kinase (MAPK/ERK) pathway significantly impaired the slow-to-fast shift in fully differentiated myotubes, which was restored by circUSP13 or IGF1 overexpression. In conclusion, circUSP13 promoted the fast-to-slow myofiber type transition through MAPK/ERK signaling in goat skeletal muscle. These findings provide novel insights into the role of circUSP13 in myofiber type transition and contribute to a better understanding of the genetic mechanisms underlying meat quality.
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Affiliation(s)
- Zhen Zhang
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing, China
| | - Ziqi Kang
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing, China
| | - Kaiping Deng
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing, China
| | - Juan Li
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing, China
| | - Zhipeng Liu
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing, China
| | - Xinai Huang
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing, China
- College of Animal Science, Shanxi Agricultural University, Taiyuan, China
| | - Feng Wang
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing, China
| | - Yixuan Fan
- Institute of Sheep and Goat Science, Nanjing Agricultural University, Nanjing, China
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Ju W, Zhao Y, Yu Y, Zhao S, Xiang S, Lian F. Mechanisms of mitochondrial dysfunction in ovarian aging and potential interventions. Front Endocrinol (Lausanne) 2024; 15:1361289. [PMID: 38694941 PMCID: PMC11061492 DOI: 10.3389/fendo.2024.1361289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/25/2023] [Accepted: 03/22/2024] [Indexed: 05/04/2024] Open
Abstract
Mitochondria plays an essential role in regulating cellular metabolic homeostasis, proliferation/differentiation, and cell death. Mitochondrial dysfunction is implicated in many age-related pathologies. Evidence supports that the dysfunction of mitochondria and the decline of mitochondrial DNA copy number negatively affect ovarian aging. However, the mechanism of ovarian aging is still unclear. Treatment methods, including antioxidant applications, mitochondrial transplantation, emerging biomaterials, and advanced technologies, are being used to improve mitochondrial function and restore oocyte quality. This article reviews key evidence and research updates on mitochondrial damage in the pathogenesis of ovarian aging, emphasizing that mitochondrial damage may accelerate and lead to cellular senescence and ovarian aging, as well as exploring potential methods for using mitochondrial mechanisms to slow down aging and improve oocyte quality.
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Affiliation(s)
- Wenhan Ju
- The First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Yuewen Zhao
- CReATe Fertility Centre, Toronto, ON, Canada
| | - Yi Yu
- Department of Reproduction and Genetics, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Shuai Zhao
- The First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Shan Xiang
- The First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Fang Lian
- Department of Reproduction and Genetics, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
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Hou Y, Hu J, Li J, Li H, Lu Y, Liu X. MFN2 regulates progesterone biosynthesis and proliferation of granulosa cells during follicle selection in hens. J Cell Physiol 2024; 239:51-66. [PMID: 37921053 DOI: 10.1002/jcp.31143] [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: 01/16/2023] [Revised: 09/25/2023] [Accepted: 10/03/2023] [Indexed: 11/04/2023]
Abstract
Follicle selection in hens refers to a biological process that only one small yellow follicle (SYF) is selected daily or near-daily for following hierarchical development (from F5/F6 to F1) until ovulation. MFN2 is a kind of GTPases located on the mitochondrial outer membrane, which plays a crucial role in mitochondrial fusion. This study aimed to elucidate the role of MFN2 in proliferation and progesterone biosynthesis of granulosa cells (GCs) during follicle selection in hens. The results showed that GCs began to produce progesterone (P4) after follicle selection, accompanied with changes from multi-layer with flat cells to single layer with cubic cells. MFN2 was detected in GCs of follicles from SYF to F1. After follicle selection, the expression level of MFN2 in GCs upregulated significantly, accompanied with increases in P4 biosynthesis, ATP production, mitochondrial DNA (mtDNA) copy numbers of granulosa cells. FSH (80 ng/mL) facilitated the effects of P4 biosynthesis and secretion, ATP production, mtDNA copy numbers, cell proliferation and the MFN2 transcription of granulosa cells from F5 (F5G) in vitro. However, FSH treatment did not promote P4 secretion in granulosa cells from SYF (SYFG) in vitro. Meanwhile, we observed that change fold of MFN2 transcription, ATP production, mtDNA copy numbers and cell proliferation rate in F5G after treatment with FSH were greater than those in SYFG. Furthermore, expression levels of MFN2 protein and messenger RNA in F5G were significantly higher than those in SYFG after treatment with FSH. P4 biosynthesis, ATP production, mtDNA copy numbers as well as cell proliferation reduced significantly in F5G with MFN2 knockdown. Oppositely, P4 biosynthesis, ATP production, mtDNA copy numbers and cell proliferation increased significantly in SYFG after the overexpression of MFN2. Our results suggest that the upregulation of MFN2 may be involved in the initiation of P4 biosynthesis, and promotion of GCs proliferation during follicle selection.
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Affiliation(s)
- Yuanyuan Hou
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Nanning, China
- Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Nanning, China
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Jianing Hu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Nanning, China
- Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Nanning, China
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Jie Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Nanning, China
- Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Nanning, China
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Hu Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Nanning, China
- Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Nanning, China
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Yangqing Lu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Nanning, China
- Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Nanning, China
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Xingting Liu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Nanning, China
- Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Nanning, China
- College of Animal Science and Technology, Guangxi University, Nanning, China
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