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Zeng H, Li S, Chang H, Zhai Y, Wang H, Weng H, Han Z. Circ_002033 Regulates Proliferation, Apoptosis, and Oxidative Damage of Bovine Mammary Epithelial Cells via the miR-199a-5p-MAP3K11 Axis in Heat Stress. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:14386-14401. [PMID: 38869955 DOI: 10.1021/acs.jafc.3c09835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2024]
Abstract
Heat stress is becoming the major factor regarding dairy cow health and milk quality because of global warming. Circular RNAs (circRNAs) represent a special type of noncoding RNAs, which are related to regulating many biological processes. Nonetheless, little is known concerning their effects on heat-stressed bovine mammary epithelial cells (BMECs). Here, this study found a novel circRNA, circ_002033, using RNA sequencing (RNA-seq) and explored the role and underlying regulatory mechanism in proliferation, apoptosis, and oxidative damage in a heat-stressed bovine mammary epithelial cell line (MAC-T). According to the previous RNA-seq analysis, the abundance of circ_002033 in mammary gland tissue of heat-stressed cows increased relative to nonheat-stressed counterparts. This study found that the knockdown of circ_002033 promoted proliferation and alleviated apoptosis and oxidative damage in heat-stressed MAC-T. Mechanistically, circ_002033 localizes to miR-199a-5p in the cytoplasm of MAC-T to regulate mitogen-activated protein kinase kinase 11 (MAP3K11) expression. Meanwhile, miR-199a-5p and MAP3K11 are also involved in regulating the proliferation and apoptosis of heat-stressed MAC-T. Importantly, circ_002033 knockdown promoted the expression of miR-199a-5p while decreasing that of MAP3K11, thereby enhancing proliferation while alleviating apoptosis and oxidative damage in heat-stressed MAC-T. In summary, we found that circ_002033 regulates the proliferation, apoptosis, and oxidative damage of heat-stressed BMECs through the miR-199a-5p/MAP3K11 axis, providing the theoretical molecular foundation for mitigating heat stress of dairy cows.
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Affiliation(s)
- Hanfang Zeng
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Shujie Li
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Haomiao Chang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Yunfei Zhai
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Haihui Wang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Hantong Weng
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Zhaoyu Han
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
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Xu C, Xu Z, Li G, Li J, Ye L, Ning Y, Du Y. CircFgfr2 promotes osteogenic differentiation of rat dental follicle cells by targeting the miR-133a-3p/DLX3 signaling pathway. Heliyon 2024; 10:e32498. [PMID: 38912473 PMCID: PMC11193016 DOI: 10.1016/j.heliyon.2024.e32498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Revised: 06/04/2024] [Accepted: 06/05/2024] [Indexed: 06/25/2024] Open
Abstract
Dental follicle cells (DFCs) promote bone regeneration in vivo and in vitro. Circular RNAs (circRNAs) play crucial roles in bone development and regeneration. Our previous study demonstrated the upregulation of circFgfr2 expression during the osteogenic differentiation of DFCs. However, the molecular mechanisms and functional roles of circFgfr2 in DFCs osteogenesis remain unclear. In this study, we aimed to investigate the subcellular localization of circFgfr2 in DFCs using fluorescence in situ hybridization. In vitro investigations demonstrated that circFgfr2 overexpression promoted osteogenic differentiation, as evidenced by real-time quantitative polymerase chain reaction. By integrating the outcomes of bioinformatics analyses, dual luciferase reporter experiments, and chromatin isolation by RNA purification, we identified circFgfr2 as a sponge for miR-133a-3p, a key regulator of osteogenic differentiation. Moreover, miR-133a-3p suppressed osteogenic differentiation by targeting DLX3 and RUNX2 in DFCs. We validated that circFgfr2 promoted the osteogenic differentiation of DFCs through the miR-133a-3p/DLX3 axis. To further investigate the therapeutic potential of circFgfr2 in bone regeneration, we conducted in vivo experiments and histological analyses. Overall, these results confirmed the crucial role of circFgfr2 in promoting osteogenesis. In summary, our findings demonstrated that the circFgfr2/miR-133a-3p/DLX3 pathway acts as a cascade, thereby identifying circFgfr2 as a promising molecular target for bone tissue engineering.
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Affiliation(s)
- Cheng Xu
- Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat‐sen University, Guangzhou, Guangdong, China
- Nanjing Stomatological Hospital, Affiliated Hospital of Medical School, Reasearch Institute of Stomatology, Nanjing University,Nanjing, Jiangsu, China
| | - Zhiqing Xu
- Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat‐sen University, Guangzhou, Guangdong, China
| | - Guixian Li
- Operative Dentistry and Endodontics, Jiangmen Municipal Stomatological Hospital, Jiangmen, Guangdong, China
| | - Jing Li
- Department of Stomatology, Shenzhen Hospital, Southern Medical University, Shenzhen, Guangdong, China
| | - Li Ye
- Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat‐sen University, Guangzhou, Guangdong, China
| | - Yang Ning
- Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat‐sen University, Guangzhou, Guangdong, China
| | - Yu Du
- Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat‐sen University, Guangzhou, Guangdong, China
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Zhang C, Huang Y, Gao X, Ren H, Gao S, Zhu W. Biological functions of circRNAs and their advance on skeletal muscle development in bovine. 3 Biotech 2023; 13:133. [PMID: 37096117 PMCID: PMC10121973 DOI: 10.1007/s13205-023-03558-3] [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: 02/11/2022] [Accepted: 01/10/2023] [Indexed: 04/26/2023] Open
Abstract
The development of skeletal muscle in animals is a complex biological process, which are strictly and precisely regulated by many genes and non-coding RNAs. Circular RNA (circRNA) was found as a novel class of functional non-coding RNA with ring structure in recent years, which appears in the process of transcription and is formed by covalent binding of single-stranded RNA molecules. With the development of sequencing and bioinformatics analysis technology, the functions and regulation mechanisms of circRNAs have attracted great attention due to its high stability characteristics. The role of circRNAs in skeletal muscle development have been gradually revealed, where circRNAs were involved in various biological processes, such as proliferation, differentiation, and apoptosis of skeletal muscle cells. In this review, we summarized the current studies advance of circRNAs involved in skeletal muscle development in bovine, and hope to gain a deeper understanding of the functional roles of the circRNAs in muscle growth. Our results will provide some theoretical supports and great helps for the genetic breeding of this species, and aiming at improving bovine growth and development and preventing muscle diseases.
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Affiliation(s)
- Cai Zhang
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, 471023 China
| | - Yong Huang
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, 471023 China
| | - Xiaochan Gao
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, 471023 China
| | - Hongtao Ren
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, 471023 China
| | - Shiyang Gao
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, 471023 China
| | - Wenwen Zhu
- Animal Diseases and Public Health Engineering Research Center of Henan Province, Luoyang Polytechnic, Luoyang, 471023 China
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Circular RNA circ_0024037 suppresses high glucose-induced lens epithelial cell injury by targeting the miR-199a-5p/TP53INP1 axis. Mol Cell Toxicol 2023. [DOI: 10.1007/s13273-023-00340-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
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Wang J, Zheng L, Hu C, Kong D, Zhou Z, Wu B, Wu S, Fei F, Shen Y. CircZFR promotes pancreatic cancer progression through a novel circRNA-miRNA-mRNA pathway and stabilizing epithelial-mesenchymal transition protein. Cell Signal 2023; 107:110661. [PMID: 36990335 DOI: 10.1016/j.cellsig.2023.110661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 03/09/2023] [Accepted: 03/24/2023] [Indexed: 03/29/2023]
Abstract
Pancreatic cancer (PC) ranks third in incidence and seventh in mortality among cancers worldwide. CircZFR has been implicated in various human cancers. Yet, how they affect PC progression is understudied. Herein, we demonstrated that circZFR was upregulated in PC tissues and cells, a feature that was correlated with the poor performance of patients with PC. Functional analyses elucidated that circZFR facilitated cell proliferation and enhanced tumorigenicity of PC. Moreover, we found that circZFR facilitated cell metastasis by differentially regulating the levels of proteins related to epithelial-mesenchymal transition (EMT). Mechanistic investigations revealed that circZFR sponged miR-375, thereby upregulating the downstream target gene, GREMLIN2 (GREM2). Additionally, circZFR knockdown resulted in attenuation of the JNK pathway, an effect that was reversed by GREM2 overexpression. Collectively, our findings implicate circZFR as a positive regulator of PC progression through the miR-375/GREM2/JNK axis.
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Affiliation(s)
- Jing Wang
- Department of Hepatobiliary and Pancreatic Surgery, the Second Affiliated Hospital of Jiaxing University, No. 1518, Huancheng North Road, Jiaxing 314000, Zhejiang, China
| | - Liping Zheng
- Department of Hepatobiliary and Pancreatic Surgery, the Second Affiliated Hospital of Jiaxing University, No. 1518, Huancheng North Road, Jiaxing 314000, Zhejiang, China
| | - Chundong Hu
- Department of Hepatobiliary and Pancreatic Surgery, the Second Affiliated Hospital of Jiaxing University, No. 1518, Huancheng North Road, Jiaxing 314000, Zhejiang, China
| | - Demiao Kong
- Department of Thoracic Surgery, Guizhou Provincial People's Hospital, No. 83 EastZhongshan Road, Nanming District, Guiyang, Guizhou 550001, China
| | - Zhongcheng Zhou
- Department of Hepatobiliary and Pancreatic Surgery, the Second Affiliated Hospital of Jiaxing University, No. 1518, Huancheng North Road, Jiaxing 314000, Zhejiang, China
| | - Bin Wu
- Department of Hepatobiliary and Pancreatic Surgery, the Second Affiliated Hospital of Jiaxing University, No. 1518, Huancheng North Road, Jiaxing 314000, Zhejiang, China
| | - Shaohan Wu
- Department of Hepatobiliary and Pancreatic Surgery, the Second Affiliated Hospital of Jiaxing University, No. 1518, Huancheng North Road, Jiaxing 314000, Zhejiang, China
| | - Famin Fei
- Department of Hepatobiliary and Pancreatic Surgery, the Second Affiliated Hospital of Jiaxing University, No. 1518, Huancheng North Road, Jiaxing 314000, Zhejiang, China.
| | - Yiyu Shen
- Department of Hepatobiliary and Pancreatic Surgery, the Second Affiliated Hospital of Jiaxing University, No. 1518, Huancheng North Road, Jiaxing 314000, Zhejiang, China.
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Sun X, Kang Y, Li M, Li Y, Song J. The emerging regulatory mechanisms and biological function of circular RNAs in skeletal muscle development. BIOCHIMICA ET BIOPHYSICA ACTA (BBA) - GENE REGULATORY MECHANISMS 2022; 1865:194888. [DOI: 10.1016/j.bbagrm.2022.194888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 10/13/2022] [Accepted: 10/15/2022] [Indexed: 11/07/2022]
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Zhang X, Yang S, Kang Z, Ru W, Shen X, Li M, Lan X, Chen H. circMEF2D Negatively Regulated by HNRNPA1 Inhibits Proliferation and Differentiation of Myoblasts via miR-486-PI3K/AKT Axis. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:8145-8163. [PMID: 35749701 DOI: 10.1021/acs.jafc.2c01888] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Circular RNA (circRNA) is a form of endogenous RNA that can regulate gene expression and participate in the regulation of myogenesis. However, the molecular mechanisms and potential roles of circRNAs in bovine muscle development remain largely unknown. Nevertheless, the RNA splicing factors regulating the biogenesis of bovine circRNA have not yet been characterized. In this study, we identified a novel circRNA, circMEF2D, formed by back-splicing of constitutive exons (exons 5-7) of the bovine MEF2D gene. Functional assays showed that circMEF2D inhibited the proliferation and differentiation of bovine myoblasts. Importantly, we showed that circMEF2D regulated the PI3K-AKT signaling pathway through direct and competitive binding to miR-486. Furthermore, to explore the formation mechanism of circMEF2D, we explored the MEF2D gene alternative splicing progress. Four alternative linear variants of MEF2D were found. Due to its role in alternative splicing, the RNA-binding protein HNRNPA1 was selected for further study and the modulation of HNRNPA1 levels showed that it negatively regulated both back-splicing and linear splicing of MEF2D gene. Overall, in addition to the characterization of bovine circRNAs, these findings revealed the crucial role of HNRNPA1 in MEF2D gene alternative splicing and demonstrated a regulatory circMEF2D-miR-486-PI3K-AKT axis.
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Affiliation(s)
- Xiaoyan Zhang
- Key laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100 Shaanxi, China
| | - Shuling Yang
- Key laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100 Shaanxi, China
| | - Zihong Kang
- Key laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100 Shaanxi, China
| | - Wenxiu Ru
- Key laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100 Shaanxi, China
| | - Xuemei Shen
- Key laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100 Shaanxi, China
| | - Meng Li
- Cargill Animal Nutrition (Shaanxi) Co., Ltd, Yangling, 712100 Shaanxi, China
| | - Xianyong Lan
- Key laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100 Shaanxi, China
| | - Hong Chen
- Key laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100 Shaanxi, China
- College of Animal Science, Xinjiang Agricultural University, Urumqi 830052, China
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