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Li P, Ma X, Huang D, Gu X. Exploring the roles of non-coding RNAs in liver regeneration. Noncoding RNA Res 2024; 9:945-953. [PMID: 38680418 PMCID: PMC11046251 DOI: 10.1016/j.ncrna.2024.04.003] [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: 02/14/2024] [Revised: 03/26/2024] [Accepted: 04/16/2024] [Indexed: 05/01/2024] Open
Abstract
Liver regeneration (LR) is a complex process encompassing three distinct phases: priming, proliferation phase and restoration, all influenced by various regulatory factors. After liver damage or partial resection, the liver tissue demonstrates remarkable restorative capacity, driven by cellular proliferation and repair mechanisms. The essential roles of non-coding RNAs (ncRNAs), predominantly microRNAs (miRNAs), long non-coding RNAs (lncRNAs) and circular RNA (circRNA), in regulating LR have been vastly studied. Additionally, the impact of ncRNAs on LR and their abnormal expression profiles during this process have been extensively documented. Mechanistic investigations have revealed that ncRNAs interact with genes involved in proliferation to regulate hepatocyte proliferation, apoptosis and differentiation, along with liver progenitor cell proliferation and migration. Given the significant role of ncRNAs in LR, an in-depth exploration of their involvement in the liver's self-repair capacity can reveal promising therapeutic strategies for LR and liver-related diseases. Moreover, understanding the unique regenerative potential of the adult liver and the mechanisms and regulatory factors of ncRNAs in LR are crucial for improving current treatment strategies and exploring new therapeutic approaches for various liver-related diseases. This review provides a brief overview of the LR process and the ncRNA expression profiles during this process. Furthermore, we also elaborate on the specific molecular mechanisms through which multiple key ncRNAs regulate the LR process. Finally, based on the expression characteristics of ncRNAs and their interactions with proliferation-associated genes, we explore their potential clinical application, such as developing predictive indicators reflecting liver regenerative activity and manipulating LR processes for therapeutic purposes.
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Affiliation(s)
- Penghui Li
- Department of Oncology, The First Affiliated Hospital, College of Clinical Medicine, Henan University of Science and Technology, Luoyang, 471000, Henan, China
| | - Xiao Ma
- Zhejiang University School of Medicine, Hangzhou, 310000, Zhejiang, China
| | - Di Huang
- Department of Child Health Care, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, Henan, China
| | - Xinyu Gu
- Department of Oncology, The First Affiliated Hospital, College of Clinical Medicine, Henan University of Science and Technology, Luoyang, 471000, Henan, China
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2
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Farrell CE, Liu X, Yagan NO, Suda AC, Cerqueira DM, Bodnar AJ, Kashlan OB, Subramanya AR, Ho J, Butterworth MB. MicroRNA-19 is regulated by aldosterone in a sex-specific manner to alter kidney sodium transport. Am J Physiol Cell Physiol 2024; 326:C282-C293. [PMID: 38047299 PMCID: PMC11192485 DOI: 10.1152/ajpcell.00385.2023] [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: 08/15/2023] [Revised: 11/14/2023] [Accepted: 11/15/2023] [Indexed: 12/05/2023]
Abstract
A key regulator of blood pressure homeostasis is the steroid hormone aldosterone, which is released as the final signaling hormone of the renin-angiotensin-aldosterone-signaling (RAAS) system. Aldosterone increases sodium (Na+) reabsorption in the kidney distal nephron to regulate blood volume. Unregulated RAAS signaling can lead to hypertension and cardiovascular disease. The serum and glucocorticoid kinase (SGK1) coordinates much of the Na+ reabsorption in the cortical collecting duct (CCD) tubular epithelial cells. We previously demonstrated that aldosterone alters the expression of microRNAs (miRs) in CCD principal cells. The aldosterone-regulated miRs can modulate Na+ transport and the cellular response to aldosterone signaling. However, the sex-specific regulation of miRs by aldosterone in the kidney distal nephron has not been explored. In this study, we report that miR-19, part of the miR-17-92 cluster, is upregulated in female mouse CCD cells in response to aldosterone activation. Mir-19 binding to the 3'-untranslated region of SGK1 was confirmed using a dual-luciferase reporter assay. Increasing miR-19 expression in CCD cells decreased SGK1 message and protein expression. Removal of this cluster using a nephron-specific, inducible knockout mouse model increased SGK1 expression in female mouse CCD cells. The miR-19-induced decrease in SGK1 protein expression reduced the response to aldosterone stimulation and may account for sex-specific differences in aldosterone signaling. By examining evolution of the miR-17-92 cluster, phylogenetic sequence analysis indicated that this cluster arose at the same time that other Na+-sparing and salt regulatory proteins, specifically SGK1, first emerged, indicating a conserved role for these miRs in kidney function of salt and water homeostasis.NEW & NOTEWORTHY Expression of the microRNA-17-92 cluster is upregulated by aldosterone in mouse cortical collecting duct principal cells, exclusively in female mice. MiR-19 in this cluster targets the serum and glucocorticoid kinase (SGK1) to downregulate both mRNA and protein expression, resulting in a decrease in sodium transport across epithelial cells of the collecting duct. The miR-17-92 cluster is evolutionarily conserved and may act as a novel feedback regulator for aldosterone signaling in females.
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Affiliation(s)
- Corinne E Farrell
- Department of Cell Biology, University of Pittsburgh, Pittsburgh, Pennsylvania, United States
| | - Xiaoning Liu
- Department of Cell Biology, University of Pittsburgh, Pittsburgh, Pennsylvania, United States
| | - Nejla Ozbaki Yagan
- Department of Cell Biology, University of Pittsburgh, Pittsburgh, Pennsylvania, United States
| | - Amanda C Suda
- Department of Cell Biology, University of Pittsburgh, Pittsburgh, Pennsylvania, United States
| | - Debora M Cerqueira
- Division of Nephrology, Department of Pediatrics, University of Pittsburgh, Pittsburgh, Pennsylvania, United States
| | - Andrew J Bodnar
- Division of Nephrology, Department of Pediatrics, University of Pittsburgh, Pittsburgh, Pennsylvania, United States
| | - Ossama B Kashlan
- Renal-Electrolyte Division, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, United States
| | - Arohan R Subramanya
- Renal-Electrolyte Division, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, United States
| | - Jacqueline Ho
- Division of Nephrology, Department of Pediatrics, University of Pittsburgh, Pittsburgh, Pennsylvania, United States
| | - Michael B Butterworth
- Department of Cell Biology, University of Pittsburgh, Pittsburgh, Pennsylvania, United States
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3
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Xu Y, Zhu Y, Wu Z, Li S, Shao M, Tao Q, Xu Q, Chen Y, Shu Y, Chen M, Zhou Y, Shi Y. Hepatocyte-specific HDAC3 ablation promotes hepatocellular carcinoma in females by suppressing Foxa1/2. BMC Cancer 2023; 23:906. [PMID: 37752418 PMCID: PMC10521566 DOI: 10.1186/s12885-023-11393-1] [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: 04/14/2023] [Accepted: 09/10/2023] [Indexed: 09/28/2023] Open
Abstract
BACKGROUND Hepatocellular carcinoma (HCC), the most common primary liver cancer, prevails mainly in males and has long been attributed to androgens and higher circumstantial levels of interleukin-6 (IL-6) produced by resident hepatic macrophages. METHODS Constitutively hepatocyte-specific histone deacetylase 3 (HDAC3)-deficient (HDAC3LCKO) mice and constitutively hepatocyte-specific HDAC3 knockout and systemic IL-6 simultaneously ablated (HDAC3LCKO& IL-6-/-) mice were used in our study to explore the causes of sex differences in HCC. Additionally, we performed human HCC tissues with an IHC score. Correlation analysis and linear regression plots were constructed to reveal the association between HDAC3 and its candidate genes. To further elucidate that HDAC3 controls the expression of Foxa1/2, we knocked down HDAC3 in HUH7 liver cancer cells. RESULTS We observed a contrary sex disparity, with an earlier onset and higher incidence of HCC in female mice when HDAC3 was selectively ablated in the liver. Loss of HDAC3 led to constant liver injury and the spontaneous development of HCC. Unlike the significant elevation of IL-6 in male mice at a very early age, female mice exhibit stable IL-6 levels, and IL-6 ablation did not eliminate the sex disparity in hepatocarcinogenesis in HDAC3-deficient mice. Oestrogen often protects the liver when combined with oestrogen receptor alpha (ERα); however, ovariectomy in HDAC3-ablated female mice significantly delayed tumourigenesis. The oestrogen-ERα axis can also play a role in tumour promotion in the absence of Foxa1 and Foxa2 in the receptor complex. Loss of HDAC3 profoundly reduced the expression of both Foxa1 and Foxa2 and impaired the binding between Foxa1/2 and ERα. Furthermore, a more frequent HDAC3 decrease accompanied by the simultaneous Foxa1/2 decline was found in female HCC compared to that in male HCC. CONCLUSION In summary, we reported that loss of HDAC3 reduces Foxa1/2 and thus promotes HCC development in females in an oestrogen-dependent manner.
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Affiliation(s)
- Yahong Xu
- Department of Pathology & Institute of Clinical Pathology, West China Hospital, Sichuan University, Chengdu, 610041, China
- Key Laboratory of Transplant Engineering and Immunology, West China Hospital, NHC, Sichuan University, Chengdu, 610041, China
| | - Yongjie Zhu
- Department of Targeting Therapy & Immunology and Laboratory of Animal Tumor Models, Cancer Center, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Zhenru Wu
- Department of Pathology & Institute of Clinical Pathology, West China Hospital, Sichuan University, Chengdu, 610041, China
- Key Laboratory of Transplant Engineering and Immunology, West China Hospital, NHC, Sichuan University, Chengdu, 610041, China
| | - Shengfu Li
- Department of Pathology & Institute of Clinical Pathology, West China Hospital, Sichuan University, Chengdu, 610041, China
- Key Laboratory of Transplant Engineering and Immunology, West China Hospital, NHC, Sichuan University, Chengdu, 610041, China
| | - Mingyang Shao
- Department of Pathology & Institute of Clinical Pathology, West China Hospital, Sichuan University, Chengdu, 610041, China
- Key Laboratory of Transplant Engineering and Immunology, West China Hospital, NHC, Sichuan University, Chengdu, 610041, China
| | - Qing Tao
- Department of Pathology & Institute of Clinical Pathology, West China Hospital, Sichuan University, Chengdu, 610041, China
- Key Laboratory of Transplant Engineering and Immunology, West China Hospital, NHC, Sichuan University, Chengdu, 610041, China
| | - Qing Xu
- Department of Pathology & Institute of Clinical Pathology, West China Hospital, Sichuan University, Chengdu, 610041, China
- Key Laboratory of Transplant Engineering and Immunology, West China Hospital, NHC, Sichuan University, Chengdu, 610041, China
| | - Yuwei Chen
- Department of Pathology & Institute of Clinical Pathology, West China Hospital, Sichuan University, Chengdu, 610041, China
- Key Laboratory of Transplant Engineering and Immunology, West China Hospital, NHC, Sichuan University, Chengdu, 610041, China
| | - Yuke Shu
- Department of Pathology & Institute of Clinical Pathology, West China Hospital, Sichuan University, Chengdu, 610041, China
- Key Laboratory of Transplant Engineering and Immunology, West China Hospital, NHC, Sichuan University, Chengdu, 610041, China
| | - Menglin Chen
- Department of Pathology & Institute of Clinical Pathology, West China Hospital, Sichuan University, Chengdu, 610041, China
- Key Laboratory of Transplant Engineering and Immunology, West China Hospital, NHC, Sichuan University, Chengdu, 610041, China
| | - Yongjie Zhou
- Laboratory of Liver Transplantation, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Yujun Shi
- Department of Pathology & Institute of Clinical Pathology, West China Hospital, Sichuan University, Chengdu, 610041, China.
- Key Laboratory of Transplant Engineering and Immunology, West China Hospital, NHC, Sichuan University, Chengdu, 610041, China.
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4
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Cao X, Shu Y, Chen Y, Xu Q, Guo G, Wu Z, Shao M, Zhou Y, Chen M, Gong Y, Li C, Shi Y, Bu H. Mettl14-Mediated m 6A Modification Facilitates Liver Regeneration by Maintaining Endoplasmic Reticulum Homeostasis. Cell Mol Gastroenterol Hepatol 2021; 12:633-651. [PMID: 33848642 PMCID: PMC8261664 DOI: 10.1016/j.jcmgh.2021.04.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 04/01/2021] [Accepted: 04/01/2021] [Indexed: 02/05/2023]
Abstract
BACKGROUND & AIMS N6-methyladenosine (m6A), the most prevalent and dynamic posttranscriptional methylation modification of mammalian mRNA, is involved in various biological processes, but its role in liver regeneration has not been characterized. METHODS We first conducted transcriptome-wide m6A mRNA sequencing and characterized the expression pattern of m6A in regenerating mouse liver. Next, we generated hepatocyte-specific Mettl3- or Mettl14-deficient mice and investigated their role in liver regeneration. A series of biochemical experiments in vitro and in vivo was further performed to investigate potential mechanisms. RESULTS We identified an overwhelming proportion of m6A-modified genes with initially up-regulated and subsequently down-regulated m6A levels as liver regeneration progressed. Loss of Mettl14 but not of Mettl3 resulted in markedly disrupted liver regeneration, and Mettl14-ablated hepatocytes were arrested in the G1 phase of the cell cycle. Most strikingly, the Mettl14-ablated regenerating liver exhibited extensive parenchymal necrosis. mRNA transcripts, such as Hsp90b1, Erp29, Stt3a, P4hb, and Lman1, encoding proteins involved in polypeptide processing and the endoplasmic reticulum (ER) stress response, were m6A-hypomethylated, and their mRNA and protein levels were subsequently decreased, resulting in unresolved ER stress, hepatocyte death, and inhibited proliferation. CONCLUSIONS We demonstrate the essential role of Mettl14 in facilitating liver regeneration by modulating polypeptide-processing proteins in the ER in an m6A-dependent manner.
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Affiliation(s)
- Xiaoyue Cao
- Laboratory of Pathology, Key Laboratory of Transplant Engineering and Immunology, NHC, West China Hospital, Sichuan University, Chengdu, China
| | - Yuke Shu
- Laboratory of Pathology, Key Laboratory of Transplant Engineering and Immunology, NHC, West China Hospital, Sichuan University, Chengdu, China
| | - Yuwei Chen
- Laboratory of Pathology, Key Laboratory of Transplant Engineering and Immunology, NHC, West China Hospital, Sichuan University, Chengdu, China
| | - Qing Xu
- Laboratory of Pathology, Key Laboratory of Transplant Engineering and Immunology, NHC, West China Hospital, Sichuan University, Chengdu, China
| | - Gang Guo
- Department of Talent Highland, Center for Gut Microbiome Research, First Affiliated Hospital of Xi'an Jiao Tong University, Xian, China
| | - Zhenru Wu
- Laboratory of Pathology, Key Laboratory of Transplant Engineering and Immunology, NHC, West China Hospital, Sichuan University, Chengdu, China
| | - Mingyang Shao
- Laboratory of Pathology, Key Laboratory of Transplant Engineering and Immunology, NHC, West China Hospital, Sichuan University, Chengdu, China
| | - Yongjie Zhou
- Laboratory of Pathology, Key Laboratory of Transplant Engineering and Immunology, NHC, West China Hospital, Sichuan University, Chengdu, China
| | - Menglin Chen
- Laboratory of Pathology, Key Laboratory of Transplant Engineering and Immunology, NHC, West China Hospital, Sichuan University, Chengdu, China
| | - Yuping Gong
- Department of Hematology, West China Hospital, Sichuan University, Chengdu, China.
| | - Chuan Li
- Department of Liver Surgery, West China Hospital, Sichuan University, Chengdu, China.
| | - Yujun Shi
- Laboratory of Pathology, Key Laboratory of Transplant Engineering and Immunology, NHC, West China Hospital, Sichuan University, Chengdu, China.
| | - Hong Bu
- Laboratory of Pathology, Key Laboratory of Transplant Engineering and Immunology, NHC, West China Hospital, Sichuan University, Chengdu, China; Department of Pathology, West China Hospital, Sichuan University, Chengdu, China
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5
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Lin X, Chen L, Li H, Liu Y, Guan Y, Li X, Jia Z, Lin X, Jia J, Sun Y, Xiao D. miR-155 accelerates proliferation of mouse hepatocytes during liver regeneration by directly targeting SOCS1. Am J Physiol Gastrointest Liver Physiol 2018; 315:G443-G453. [PMID: 29792529 DOI: 10.1152/ajpgi.00072.2018] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Liver regeneration after two-thirds partial hepatectomy (PH) is a clinically significant repair process for restoring proper liver architecture. Although microRNA-155 (miR-155) has been found to serve as a crucial microRNA regulator that controls liver cell function and proliferation, little is known about its specific role in the regenerating liver. Using a mouse model with miR-155 overexpression or miR-155 knockout, we investigated the molecular mechanisms of miR-155 in liver regeneration. We found a marked induction of miR-155 in C57BL/6 mice after PH. Furthermore, RL-m155 mice showed enhanced liver regeneration as a result of accelerated progression of hepatocytes into the cell cycle, mainly through an increase in cyclin levels. However, proliferation of hepatocytes was delayed in miR-155-deficient livers. Expression of suppressor of cytokine signaling 1 (SOCS1) was dramatically downregulated in the process of liver regeneration, and enhancement of SOCS1 contributed to impaired proliferation of hepatocytes. Additionally, in vitro and in vivo experiments showed that adenovirus- or adeno-associated virus-mediated overexpression of SOCS1 attenuated improved liver regeneration induced by miR-155 overexpression. Our study shows that miR-155 is a pro-proliferative regulator in liver regeneration by facilitating the cell cycle and directly targeting SOCS1. NEW & NOTEWORTHY Our findings suggest a microRNA-155 (miR-155)-mediated positive regulation pattern in liver regeneration. A series of in vivo and in vitro studies showed that miR-155 upregulation enhanced partial hepatectomy-induced proliferation of hepatocytes by promoting the cell cycle without inducing DNA damage or apoptosis. Suppressor of cytokine signaling 1, a target gene of miR-155, antagonized the proliferation-promoting effect of miR-155. Therefore, pharmacological intervention targeting miR-155 may be therapeutically beneficial in various liver diseases.
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Affiliation(s)
- Xia Lin
- Guangdong Provincial Key Laboratory of Cancer Immunotherapy Research and Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, Southern Medical University , Guangzhou , China
| | - Li Chen
- Department of Endocrinology, The First Affiliated Hospital of Sun Yat-sen University , Guangzhou , China
| | - Haiyan Li
- Guangdong Provincial Key Laboratory of Cancer Immunotherapy Research and Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, Southern Medical University , Guangzhou , China
| | - Yu Liu
- Institute of Comparative Medicine & Laboratory Animal Center, Southern Medical University , Guangzhou , China
| | - Yanhong Guan
- Department of Endocrinology, The Second Affiliated Hospital, Guangzhou Medical University , Guangzhou , China
| | - Xiaoyan Li
- School of Laboratory Medicine and Biotechnology, Southern Medical University , Guangzhou , China
| | - Zhenchang Jia
- School of Laboratory Medicine and Biotechnology, Southern Medical University , Guangzhou , China
| | - Xiaolin Lin
- Guangdong Provincial Key Laboratory of Cancer Immunotherapy Research and Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, Southern Medical University , Guangzhou , China
| | - Junshuang Jia
- Guangdong Provincial Key Laboratory of Cancer Immunotherapy Research and Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, Southern Medical University , Guangzhou , China
| | - Yan Sun
- Zhongshan School of Medicine, Sun Yat-sen University , Guangzhou , China
| | - Dong Xiao
- Guangdong Provincial Key Laboratory of Cancer Immunotherapy Research and Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, Southern Medical University , Guangzhou , China.,Institute of Comparative Medicine & Laboratory Animal Center, Southern Medical University , Guangzhou , China
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6
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Ren G, Zhu J, Li J, Meng X. Noncoding RNAs in acute kidney injury. J Cell Physiol 2018; 234:2266-2276. [PMID: 30146769 DOI: 10.1002/jcp.27203] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 07/16/2018] [Indexed: 12/18/2022]
Affiliation(s)
- Gui‐Ling Ren
- Department of PharmacyThe 105 Hospital of Chinese People’s Liberation ArmyHefei China
| | - Jie Zhu
- Department of PharmacyThe 105 Hospital of Chinese People’s Liberation ArmyHefei China
| | - Jun Li
- Department of PharmacologySchool of Pharmacy, Anhui Medical UniversityHefei China
- Anhui Institute of Innovative Drugs, Anhui Medical UniversityHefei China
| | - Xiao‐Ming Meng
- Department of PharmacologySchool of Pharmacy, Anhui Medical UniversityHefei China
- Anhui Institute of Innovative Drugs, Anhui Medical UniversityHefei China
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7
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Yarushkin AA, Mazin ME, Yunusova AY, Korchagina KV, Pustylnyak YA, Prokopyeva EA, Pustylnyak VO. CAR-mediated repression of Cdkn1a(p21) is accompanied by the Akt activation. Biochem Biophys Res Commun 2018; 504:361-366. [PMID: 29890134 DOI: 10.1016/j.bbrc.2018.06.032] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Accepted: 06/08/2018] [Indexed: 11/25/2022]
Abstract
It was shown that CAR participates in the regulation of many cell processes. Thus, the activation of CAR causes a proliferating effect in the liver, which provides grounds to consider CAR as a therapeutic target when having a partial resection of this organ. Even though a lot of work has been done on the function of CAR in regulating hepatocyte proliferation, very little has been done on its complex mediating mechanism. This study, therefore, showed that the liver growth resulting from CAR activation leads to the decline in the level of PTEN protein and subsequent Akt activation in mouse liver. The increase of Akt activation produced by CAR agonist was accompanied by a decrease in the level of Foxo1, which was correlated with decreased expression of Foxo1 target genes, including Cdkn1a(p21). Moreover, the study also demonstrated that there exists a negative regulatory impact of CAR on the relationship between Foxo1 and targeted Cdkn1a(p21) promoter. Therefore, the study results revealed an essential function of CAR-Akt-Foxo1 signalling pathway in controlling hepatocyte proliferation by repressing the cell cycle regulator Cdkn1a (p21).
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Affiliation(s)
- Andrei A Yarushkin
- Novosibirsk State University, Novosibirsk, Pirogova Street, 1, 630090, Russia; Federal Research Center of Fundamental and Translational Medicine, Novosibirsk, Timakova Street, 2/12, 630117, Russia
| | - Mark E Mazin
- Novosibirsk State University, Novosibirsk, Pirogova Street, 1, 630090, Russia
| | - Anastasia Y Yunusova
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 8 Lavrentjev Avenue, 630090, Russia
| | - Kseniya V Korchagina
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 8 Lavrentjev Avenue, 630090, Russia
| | - Yuliya A Pustylnyak
- Novosibirsk State University, Novosibirsk, Pirogova Street, 1, 630090, Russia
| | - Elena A Prokopyeva
- Novosibirsk State University, Novosibirsk, Pirogova Street, 1, 630090, Russia; Federal Research Center of Fundamental and Translational Medicine, Novosibirsk, Timakova Street, 2/12, 630117, Russia
| | - Vladimir O Pustylnyak
- Novosibirsk State University, Novosibirsk, Pirogova Street, 1, 630090, Russia; Federal Research Center of Fundamental and Translational Medicine, Novosibirsk, Timakova Street, 2/12, 630117, Russia.
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8
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Hurtado A, Real FM, Palomino R, Carmona FD, Burgos M, Jiménez R, Barrionuevo FJ. Sertoli cell-specific ablation of miR-17-92 cluster significantly alters whole testis transcriptome without apparent phenotypic effects. PLoS One 2018; 13:e0197685. [PMID: 29795630 PMCID: PMC5967698 DOI: 10.1371/journal.pone.0197685] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Accepted: 05/07/2018] [Indexed: 12/26/2022] Open
Abstract
MicroRNAs are frequently organized into polycistronic clusters whose transcription is controlled by a single promoter. The miR-17-92 cluster is expressed in most embryonic and postnatal organs. It is a potent oncogene associated to several types of cancer and it is involved in several important developmental processes. In the testis, expression of the miR-17-92 cluster in the germ cells is necessary to maintain normal spermatogenesis. This cluster is also expressed in Sertoli cells (the somatic cells of the seminiferous tubules), which require miRNAs for correct cell development and survival. To study the possible role of miR-17-92 in Sertoli cell development and function and, in order to overcome the postnatal lethality of miR-17-92-/ mice, we conditionally deleted it in embryonic Sertoli cells shortly after the sex determination stage using an Amh-Cre allele. Mutant mice developed apparently normal testes and were fertile, but their testis transcriptomes contained hundreds of moderately deregulated genes, indicating that testis homeostasis is tightly controlled in mammals and that miR-17-92 expression in Sertoli cells contribute to maintain normal gene expression levels, but is unnecessary for testis development and function. Our results show that significant deregulation of hundreds of genes might have no functional consequences.
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Affiliation(s)
- Alicia Hurtado
- Departamento de Genética, Universidad de Granada, Granada, Spain
- Instituto de Biotecnología, Centro de Investigación Biomédica, Universidad de Granada, Armilla, Granada, Spain
| | - Francisca M. Real
- Departamento de Genética, Universidad de Granada, Granada, Spain
- Instituto de Biotecnología, Centro de Investigación Biomédica, Universidad de Granada, Armilla, Granada, Spain
| | - Rogelio Palomino
- Departamento de Bioquímica y Biología Molecular I, Universidad de Granada, Granada, Spain
- Instituto de Investigación Biosanitaria de Granada, Universidad de Granada,Centro de Investigación Biomédica,Armilla, Granada, Spain
| | - Francisco David Carmona
- Departamento de Genética, Universidad de Granada, Granada, Spain
- Instituto de Biotecnología, Centro de Investigación Biomédica, Universidad de Granada, Armilla, Granada, Spain
| | - Miguel Burgos
- Departamento de Genética, Universidad de Granada, Granada, Spain
- Instituto de Biotecnología, Centro de Investigación Biomédica, Universidad de Granada, Armilla, Granada, Spain
| | - Rafael Jiménez
- Departamento de Genética, Universidad de Granada, Granada, Spain
- Instituto de Biotecnología, Centro de Investigación Biomédica, Universidad de Granada, Armilla, Granada, Spain
| | - Francisco J. Barrionuevo
- Departamento de Genética, Universidad de Granada, Granada, Spain
- Instituto de Biotecnología, Centro de Investigación Biomédica, Universidad de Granada, Armilla, Granada, Spain
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9
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Kachaylo E, Tschuor C, Calo N, Borgeaud N, Ungethüm U, Limani P, Piguet AC, Dufour JF, Foti M, Graf R, Clavien PA, Humar B. PTEN Down-Regulation Promotes β-Oxidation to Fuel Hypertrophic Liver Growth After Hepatectomy in Mice. Hepatology 2017; 66:908-921. [PMID: 28437835 DOI: 10.1002/hep.29226] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Revised: 03/17/2017] [Accepted: 04/14/2017] [Indexed: 12/25/2022]
Abstract
UNLABELLED In regenerating liver, hepatocytes accumulate lipids before the major wave of parenchymal growth. This transient, regeneration-associated steatosis (TRAS) is required for liver recovery, but its purpose is unclear. The tumor suppressor phosphatase and tensin homolog (PTEN) is a key inhibitor of the protein kinase B/mammalian target of rapamycin axis that regulates growth and metabolic adaptations after hepatectomy. In quiescent liver, PTEN causes pathological steatosis when lost, whereas its role in regenerating liver remains unknown. Here, we show that PTEN down-regulation promotes liver growth in a TRAS-dependent way. In wild-type mice, PTEN reduction occurred after TRAS formation, persisted during its disappearance, and correlated with up-regulated β-oxidation at the expense of lipogenesis. Pharmacological modulation revealed an association of PTEN with TRAS turnover and hypertrophic liver growth. In liver-specific Pten-/- mice shortly after induction of knockout, hypertrophic regeneration was accelerated and led to hepatomegaly. The resulting surplus liver mass was functional, as demonstrated by raised survival in a lethal model of resection-induced liver failure. Indirect calorimetry revealed lipid oxidation as the primary energy source early after hepatectomy. The shift from glucose to lipid usage was pronounced in Pten-/- mice and correlated with the disappearance of TRAS. Partial inhibition of β-oxidation led to persisting TRAS in Pten-/- mice and abrogated hypertrophic liver growth. PTEN down-regulation may promote β-oxidation through β-catenin, whereas hypertrophy was dependent on mammalian target of rapamycin complex 1. CONCLUSION PTEN down-regulation after hepatectomy promotes the burning of TRAS-derived lipids to fuel hypertrophic liver regeneration. Therefore, the anabolic function of PTEN deficiency in resting liver is transformed into catabolic activities upon tissue loss. These findings portray PTEN as a node coordinating liver growth with its energy demands and emphasize the need of lipids for regeneration. (Hepatology 2017;66:908-921).
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Affiliation(s)
- Ekaterina Kachaylo
- Department of Surgery, Swiss Hepato-Pancreato-Biliary and Transplantation Center, University Hospital Zürich, Zürich, Switzerland
| | - Christoph Tschuor
- Department of Surgery, Swiss Hepato-Pancreato-Biliary and Transplantation Center, University Hospital Zürich, Zürich, Switzerland
| | - Nicolas Calo
- Department of Cell Physiology and Metabolism, University of Geneva, Geneva, Switzerland
| | - Nathalie Borgeaud
- Department of Surgery, Swiss Hepato-Pancreato-Biliary and Transplantation Center, University Hospital Zürich, Zürich, Switzerland
| | - Udo Ungethüm
- Department of Surgery, Swiss Hepato-Pancreato-Biliary and Transplantation Center, University Hospital Zürich, Zürich, Switzerland
| | - Perparim Limani
- Department of Surgery, Swiss Hepato-Pancreato-Biliary and Transplantation Center, University Hospital Zürich, Zürich, Switzerland
| | - Anne-Christine Piguet
- Hepatology, Department of Clinical Research, University of Berne, Berne, Switzerland
| | - Jean-Francois Dufour
- Hepatology, Department of Clinical Research, University of Berne, Berne, Switzerland
| | - Michelangelo Foti
- Department of Cell Physiology and Metabolism, University of Geneva, Geneva, Switzerland
| | - Rolf Graf
- Department of Surgery, Swiss Hepato-Pancreato-Biliary and Transplantation Center, University Hospital Zürich, Zürich, Switzerland
| | - Pierre A Clavien
- Department of Surgery, Swiss Hepato-Pancreato-Biliary and Transplantation Center, University Hospital Zürich, Zürich, Switzerland
| | - Bostjan Humar
- Department of Surgery, Swiss Hepato-Pancreato-Biliary and Transplantation Center, University Hospital Zürich, Zürich, Switzerland
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Wang XP, Zhou J, Han M, Chen CB, Zheng YT, He XS, Yuan XP. MicroRNA-34a regulates liver regeneration and the development of liver cancer in rats by targeting Notch signaling pathway. Oncotarget 2017; 8:13264-13276. [PMID: 28129650 PMCID: PMC5355094 DOI: 10.18632/oncotarget.14807] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Accepted: 12/13/2016] [Indexed: 12/20/2022] Open
Abstract
OBJECTIVE This study aimed to investigate the role of microRNA-34a (miR-34a) in regulating liver regeneration (LR) and the development of liver cancer in rats by targeting Notch signaling pathway. METHODS Thirty male Sprague-Dawley (SD) rats were randomly assigned into partial hepatectomy (PH) group and sham hepatectomy (SH) group. Hematoxylin and eosin (HE) staining was used to observe the histological change in liver tissues. Enzyme-linked immunosorbent assay (ELISA) was used to measure the serum tumor necrosis factor α (TNF-α) and interleukin-6 (IL-6) levels. Dual-luciferase reporter gene assay was performed to examine whether miR-34a targeted Notch1 gene. Human liver cancer Huh7 cells were transfected and divided into blank, negative control (NC), miR-34a mimics and miR-34a inhibitors groups. MTT and flow cytometry were used to detect cell growth, and cell cycle and apoptosis, respectively. Quantitative real-time polymerase chain reaction (qRT-PCR) was applied detect to the expressions of miR-34a and Notch receptor mRNA. Western blotting was performed to detect the protein expressions of Notch receptors, P21, Bax, Bcl-2 and Bcl-xL. Tumor xenograft in nude mice was done to observe tumor formation in different groups. RESULTS Compared to the SH group, miR-34a expression in liver tissues in the PH group decreased first and then increased to the normal level during LR. In early stage of LR, the expressions of Notch receptors and miR-34a were negatively correlated. Compared to the blank and NC groups, the cell growth was inhibited, cell cycle was mainly arrested in the G2/M phase and cell apoptosis rate increased in the miR-34a mimics group. Moreover, the expressions of miR-34a, P21 and Bax were up-regulated, while the expressions of Notch receptors, and Bcl-2 and Bcl-xL were down-regulated in this group. Additionally, the tumor growth in the miR-34a mimics group was reduced. The miR-34a inhibitors group showed contrary tendencies. CONCLUSION Our study demonstrates that miR-34a regulated LR and the development of liver cancer by inhibiting Notch signaling pathway.
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Affiliation(s)
- Xiao-Ping Wang
- Third Division of Organ Transplant Center, The Eastern Hospital of The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510700, P. R. China
| | - Jian Zhou
- Third Division of Organ Transplant Center, The Eastern Hospital of The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510700, P. R. China
| | - Ming Han
- Third Division of Organ Transplant Center, The Eastern Hospital of The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510700, P. R. China
| | - Chuan-Bao Chen
- Third Division of Organ Transplant Center, The Eastern Hospital of The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510700, P. R. China
| | - Yi-Tao Zheng
- Third Division of Organ Transplant Center, The Eastern Hospital of The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510700, P. R. China
| | - Xiao-Shun He
- Third Division of Organ Transplant Center, The Eastern Hospital of The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510700, P. R. China
| | - Xiao-Peng Yuan
- Third Division of Organ Transplant Center, The Eastern Hospital of The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510700, P. R. China
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Sun RP, Xi QY, Sun JJ, Cheng X, Zhu YL, Ye DZ, Chen T, Wei LM, Ye RS, Jiang QY, Zhang YL. In low protein diets, microRNA-19b regulates urea synthesis by targeting SIRT5. Sci Rep 2016; 6:33291. [PMID: 27686746 PMCID: PMC5043173 DOI: 10.1038/srep33291] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Accepted: 08/22/2016] [Indexed: 12/25/2022] Open
Abstract
Ammonia detoxification, which takes place via the hepatic urea cycle, is essential for nitrogen homeostasis and physiological well-being. It has been reported that a reduction in dietary protein reduces urea nitrogen. MicroRNAs (miRNAs) are major regulatory non-coding RNAs that have significant effects on several metabolic pathways; however, little is known on whether miRNAs regulate hepatic urea synthesis. The objective of this study was to assess the miRNA expression profile in a low protein diet and identify miRNAs involved in the regulation of the hepatic urea cycle using a porcine model. Weaned 28-days old piglets were fed a corn-soybean normal protein diet (NP) or a corn-soybean low protein diet (LP) for 30 d. Hepatic and blood samples were collected, and the miRNA expression profile was assessed by sequencing and qRT-PCR. Furthermore, we evaluated the possible role of miR-19b in urea synthesis regulation. There were 25 differentially expressed miRNAs between the NP and LP groups. Six of these miRNAs were predicted to be involved in urea cycle metabolism. MiR-19b negatively regulated urea synthesis by targeting SIRT5, which is a positive regulator of CPS1, the rate limiting enzyme in the urea cycle. Our study presented a novel explanation of ureagenesis regulation by miRNAs.
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Affiliation(s)
- Rui-Ping Sun
- College of Animal Science, Chinese National Centre of Pig Breeding Technology, ALLTECH-SCAU Animal Nutrition Control Research Alliance, National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, 483 Wushan Road, Guangzhou, 510642, China
- Institute of Animal Science and Veterinary Medicine, Hainan Academy of Agricultural Science, Haikou 571100, China
| | - Qian-Yun Xi
- College of Animal Science, Chinese National Centre of Pig Breeding Technology, ALLTECH-SCAU Animal Nutrition Control Research Alliance, National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, 483 Wushan Road, Guangzhou, 510642, China
| | - Jia-Jie Sun
- College of Animal Science, Chinese National Centre of Pig Breeding Technology, ALLTECH-SCAU Animal Nutrition Control Research Alliance, National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, 483 Wushan Road, Guangzhou, 510642, China
| | - Xiao Cheng
- College of Animal Science, Chinese National Centre of Pig Breeding Technology, ALLTECH-SCAU Animal Nutrition Control Research Alliance, National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, 483 Wushan Road, Guangzhou, 510642, China
| | - Yan-Ling Zhu
- College of Animal Science, Chinese National Centre of Pig Breeding Technology, ALLTECH-SCAU Animal Nutrition Control Research Alliance, National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, 483 Wushan Road, Guangzhou, 510642, China
| | - Ding-Ze Ye
- College of Animal Science, Chinese National Centre of Pig Breeding Technology, ALLTECH-SCAU Animal Nutrition Control Research Alliance, National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, 483 Wushan Road, Guangzhou, 510642, China
| | - Ting Chen
- College of Animal Science, Chinese National Centre of Pig Breeding Technology, ALLTECH-SCAU Animal Nutrition Control Research Alliance, National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, 483 Wushan Road, Guangzhou, 510642, China
| | - Li-Min Wei
- College of Animal Science, Chinese National Centre of Pig Breeding Technology, ALLTECH-SCAU Animal Nutrition Control Research Alliance, National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, 483 Wushan Road, Guangzhou, 510642, China
- Institute of Animal Science and Veterinary Medicine, Hainan Academy of Agricultural Science, Haikou 571100, China
| | - Rui-Song Ye
- College of Animal Science, Chinese National Centre of Pig Breeding Technology, ALLTECH-SCAU Animal Nutrition Control Research Alliance, National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, 483 Wushan Road, Guangzhou, 510642, China
| | - Qing-Yan Jiang
- College of Animal Science, Chinese National Centre of Pig Breeding Technology, ALLTECH-SCAU Animal Nutrition Control Research Alliance, National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, 483 Wushan Road, Guangzhou, 510642, China
| | - Yong-Liang Zhang
- College of Animal Science, Chinese National Centre of Pig Breeding Technology, ALLTECH-SCAU Animal Nutrition Control Research Alliance, National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, 483 Wushan Road, Guangzhou, 510642, China
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Mao S, Li X, Wang J, Ding X, Zhang C, Li L. miR-17-92 facilitates neuronal differentiation of transplanted neural stem/precursor cells under neuroinflammatory conditions. J Neuroinflammation 2016; 13:208. [PMID: 27567678 PMCID: PMC5002215 DOI: 10.1186/s12974-016-0685-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2016] [Accepted: 08/18/2016] [Indexed: 12/18/2022] Open
Abstract
Background Neural stem/precursor cells (NSCs) are of particular interest because of their potential application in cell therapy for brain damage. However, most brain injury cases are followed with neuroinflammatory stress, which affects the lineage selection of grafted NSCs by promoting astrocytogenesis, thus hampering the potential for neural replacement. The present study investigated the role of miR-17-92 in protecting against detrimental effects of neuroinflammation on NSC differentiation in cell therapy. Methods NSCs were treated with conditioned medium from lesioned astrocytes with/without neutralizing antibodies of leukemia inhibitory factor (LIF) or/and ciliary neurotrophic factor (CNTF), respectively. Afterward, the levels of p-STAT3 and p-JAK2 were determined by western blotting while expression of glial fibrillary acidic protein (GFAP) and β-tubulin III was assessed by immunostaining. The activation of JAK-STAT pathway and cell differentiation were also evaluated after we overexpressed miR-17-92 in NSCs under different neuroinflammatory conditions. After the transplantation of miR-17-92-overexpressing NSCs into injured mouse cortex, PH3, nestin, GFAP, and NeuN were analyzed by immunostaining. In addition, motor coordination of mice was evaluated by rotarod test. Results Conditioned medium from lesioned astrocytes activated JAK-STAT pathway and facilitated astrocytic differentiation in NSCs while neutralizing antibodies of LIF and CNTF remarkably attenuated such effects. miR-17-92 cluster repressed the expression of multiple proteins including GP130, CNTFR, JAK2, and STAT3 in JAK-STAT pathway. Overexpression of miR-17-92 in NSCs systematically blocked the activation of JAK-STAT pathway mediated by LIF and CNTF, which facilitated neuronal differentiation in vitro. Furthermore, miR-17-92 increased neuronal generation of grafted NSCs and reduced astrogliosis, which resulted in the improvement of motor coordination of brain-injured mice. Conclusions Our results suggest that miR-17-92 promotes neuronal differentiation of grafted NSCs under neuroinflammatory condition via inhibition of multiple proteins in JAK-STAT pathway. Electronic supplementary material The online version of this article (doi:10.1186/s12974-016-0685-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Susu Mao
- State Key Laboratory of Pharmaceutical Biotechnology, Collaborative Innovation Center of Chemistry for Life Sciences, Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, NJU Advanced Institute for Life Sciences (NAILS), School of Life Sciences, Nanjing University, 163 Xianlin Road, Nanjing, Jiangsu, 210023, China.,Jiangsu Key Laboratory of Neuroregeneration, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, 226001, China
| | - Xiuhua Li
- State Key Laboratory of Pharmaceutical Biotechnology, Collaborative Innovation Center of Chemistry for Life Sciences, Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, NJU Advanced Institute for Life Sciences (NAILS), School of Life Sciences, Nanjing University, 163 Xianlin Road, Nanjing, Jiangsu, 210023, China
| | - Jin Wang
- State Key Laboratory of Pharmaceutical Biotechnology, Collaborative Innovation Center of Chemistry for Life Sciences, Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, NJU Advanced Institute for Life Sciences (NAILS), School of Life Sciences, Nanjing University, 163 Xianlin Road, Nanjing, Jiangsu, 210023, China
| | - Xin Ding
- State Key Laboratory of Pharmaceutical Biotechnology, Collaborative Innovation Center of Chemistry for Life Sciences, Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, NJU Advanced Institute for Life Sciences (NAILS), School of Life Sciences, Nanjing University, 163 Xianlin Road, Nanjing, Jiangsu, 210023, China
| | - Chenyu Zhang
- State Key Laboratory of Pharmaceutical Biotechnology, Collaborative Innovation Center of Chemistry for Life Sciences, Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, NJU Advanced Institute for Life Sciences (NAILS), School of Life Sciences, Nanjing University, 163 Xianlin Road, Nanjing, Jiangsu, 210023, China
| | - Liang Li
- State Key Laboratory of Pharmaceutical Biotechnology, Collaborative Innovation Center of Chemistry for Life Sciences, Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, NJU Advanced Institute for Life Sciences (NAILS), School of Life Sciences, Nanjing University, 163 Xianlin Road, Nanjing, Jiangsu, 210023, China.
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