1
|
Fu Y, Nie JR, Shang P, Zhang B, Yan DW, Hao X, Zhang H. Tumor necrosis factor α deficiency promotes myogenesis and muscle regeneration. Zool Res 2024; 45:951-960. [PMID: 39021083 PMCID: PMC11298682 DOI: 10.24272/j.issn.2095-8137.2024.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Accepted: 04/07/2024] [Indexed: 07/20/2024] Open
Abstract
Tumor necrosis factor α (TNFα) exhibits diverse biological functions; however, its regulatory roles in myogenesis are not fully understood. In the present study, we explored the function of TNFα in myoblast proliferation, differentiation, migration, and myotube fusion in primary myoblasts and C2C12 cells. To this end, we constructed TNFα muscle-conditional knockout ( TNFα-CKO) mice and compared them with flox mice to assess the effects of TNFα knockout on skeletal muscles. Results indicated that TNFα-CKO mice displayed phenotypes such as accelerated muscle development, enhanced regenerative capacity, and improved exercise endurance compared to flox mice, with no significant differences observed in major visceral organs or skeletal structure. Using label-free proteomic analysis, we found that TNFα-CKO altered the distribution of several muscle development-related proteins, such as Hira, Casz1, Casp7, Arhgap10, Gas1, Diaph1, Map3k20, Cfl2, and Igf2, in the nucleus and cytoplasm. Gene set enrichment analysis (GSEA) further revealed that TNFα deficiency resulted in positive enrichment in oxidative phosphorylation and MyoD targets and negative enrichment in JAK-STAT signaling. These findings suggest that TNFα-CKO positively regulates muscle growth and development, possibly via these newly identified targets and pathways.
Collapse
Affiliation(s)
- Yu Fu
- State Key Laboratory of Animal Biotech Breeding, China Agricultural University, Beijing 100193, China
| | - Jing-Ru Nie
- State Key Laboratory of Animal Biotech Breeding, China Agricultural University, Beijing 100193, China
| | - Peng Shang
- College of Animal Science, Xizang Agricultural and Animal Husbandry University, Linzhi, Xizang 860000, China
| | - Bo Zhang
- State Key Laboratory of Animal Biotech Breeding, China Agricultural University, Beijing 100193, China
| | - Da-Wei Yan
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming, Yunnan 650201, China
| | - Xin Hao
- State Key Laboratory of Animal Biotech Breeding, China Agricultural University, Beijing 100193, China. E-mail:
| | - Hao Zhang
- State Key Laboratory of Animal Biotech Breeding, China Agricultural University, Beijing 100193, China. E-mail:
| |
Collapse
|
2
|
Kim JW, Bae JH, Go GY, Lee JR, Jeong Y, Kim JY, Kim TH, Kim YK, Han JW, Oh JE, Hahn MJ, Kang JS, Bae GU. Epsti1 Regulates the Inflammatory Stage of Early Muscle Regeneration through STAT1-VCP Interaction. Int J Biol Sci 2024; 20:3530-3543. [PMID: 38993551 PMCID: PMC11234217 DOI: 10.7150/ijbs.94675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Accepted: 06/17/2024] [Indexed: 07/13/2024] Open
Abstract
During muscle regeneration, interferon-gamma (IFN-γ) coordinates inflammatory responses critical for activation of quiescent muscle stem cells upon injury via the Janus kinase (JAK) - signal transducer and activator of transcription 1 (STAT1) pathway. Dysregulation of JAK-STAT1 signaling results in impaired muscle regeneration, leading to muscle dysfunction or muscle atrophy. Until now, the underlying molecular mechanism of how JAK-STAT1 signaling resolves during muscle regeneration remains largely elusive. Here, we demonstrate that epithelial-stromal interaction 1 (Epsti1), an interferon response gene, has a crucial role in regulating the IFN-γ-JAK-STAT1 signaling at early stage of muscle regeneration. Epsti1-deficient mice exhibit impaired muscle regeneration with elevated inflammation response. In addition, Epsti1-deficient myoblasts display aberrant interferon responses. Epsti1 interacts with valosin-containing protein (VCP) and mediates the proteasomal degradation of IFN-γ-activated STAT1, likely contributing to dampening STAT1-mediated inflammation. In line with the notion, mice lacking Epsti1 exhibit exacerbated muscle atrophy accompanied by increased inflammatory response in cancer cachexia model. Our study suggests a crucial function of Epsti1 in the resolution of IFN-γ-JAK-STAT1 signaling through interaction with VCP which provides insights into the unexplored mechanism of crosstalk between inflammatory response and muscle regeneration.
Collapse
Affiliation(s)
- Jee Won Kim
- Drug Information Research Institute, Sookmyung Women's University, Seoul 04310, South Korea
- Muscle Physiome Research Center, Sookmyung Women's University, Seoul 04310, South Korea
- College of Pharmacy, Sookmyung Women's University, Seoul 04310, South Korea
| | - Ju-Hyeon Bae
- Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon 16419, South Korea
| | - Ga-Yeon Go
- Drug Information Research Institute, Sookmyung Women's University, Seoul 04310, South Korea
- Muscle Physiome Research Center, Sookmyung Women's University, Seoul 04310, South Korea
- College of Pharmacy, Sookmyung Women's University, Seoul 04310, South Korea
| | - Jae-Rin Lee
- Cell and Gene Therapy Products Division, National Institute of Food and Drug Safety Evaluation, Cheongju 28159, South Korea
| | - Yideul Jeong
- Research Institute of Aging Related Disease, AniMusCure Inc., Suwon 16419, South Korea
| | - Jun-Young Kim
- College of Pharmacy, Sookmyung Women's University, Seoul 04310, South Korea
| | - Tae Hyun Kim
- Drug Information Research Institute, Sookmyung Women's University, Seoul 04310, South Korea
- Muscle Physiome Research Center, Sookmyung Women's University, Seoul 04310, South Korea
- College of Pharmacy, Sookmyung Women's University, Seoul 04310, South Korea
| | - Yong Kee Kim
- Drug Information Research Institute, Sookmyung Women's University, Seoul 04310, South Korea
- Muscle Physiome Research Center, Sookmyung Women's University, Seoul 04310, South Korea
- College of Pharmacy, Sookmyung Women's University, Seoul 04310, South Korea
| | - Jeung-Whan Han
- Research Center for Epigenome Regulation, School of Pharmacy, Department of Biochemistry and Molecular Biology, Sungkyunkwan University, Suwon 16419, South Korea
| | - Ji-Eun Oh
- Department of Biomedical Laboratory Science, Far East University, 76-32 Daehakgil, Gamgok-myeon, Eumseong-gun, Chungbuk-do, 27601, Korea
| | - Myong-Joon Hahn
- Research Center for Epigenome Regulation, School of Pharmacy, Department of Biochemistry and Molecular Biology, Sungkyunkwan University, Suwon 16419, South Korea
| | - Jong-Sun Kang
- Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon 16419, South Korea
- Research Institute of Aging Related Disease, AniMusCure Inc., Suwon 16419, South Korea
| | - Gyu-Un Bae
- Drug Information Research Institute, Sookmyung Women's University, Seoul 04310, South Korea
- Muscle Physiome Research Center, Sookmyung Women's University, Seoul 04310, South Korea
- College of Pharmacy, Sookmyung Women's University, Seoul 04310, South Korea
- Research Institute of Aging Related Disease, AniMusCure Inc., Suwon 16419, South Korea
| |
Collapse
|
3
|
Sheet S, Jang SS, Kim JH, Park W, Kim D. A transcriptomic analysis of skeletal muscle tissues reveals promising candidate genes and pathways accountable for different daily weight gain in Hanwoo cattle. Sci Rep 2024; 14:315. [PMID: 38172605 PMCID: PMC10764957 DOI: 10.1038/s41598-023-51037-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 12/29/2023] [Indexed: 01/05/2024] Open
Abstract
Cattle traits like average daily weight gain (ADG) greatly impact profitability. Selecting based on ADG considering genetic variability can lead to economic and genetic advancements in cattle breeding. This study aimed to unravel genetic influences on ADG variation in Hanwoo cattle at the skeletal muscle transcriptomic level. RNA sequencing was conducted on longissimus dorsi (LD), semimembranosus (SB), and psoas major (PM) muscles of 14 steers assigned to same feed, grouped by low (≤ 0.71 kg) and high (≥ 0.77 kg) ADG. At P ≤ 0.05 and log2fold > 1.5, the distinct pattern of gene expression was identified with 184, 172, and 210 differentially expressed genes in LD, SB, and PM muscles, respectively. Tissue-specific responses to ADG variation were evident, with myogenesis and differentiation associated JAK-STAT signaling pathway and prolactin signaling pathways enriched in LD and SB muscles, while adipogenesis-related PPAR signaling pathways were enriched in PM muscle. Key hub genes (AXIN2, CDKN1A, MYC, PTGS2, FZD5, SPP1) were upregulated and functionally significant in muscle growth and differentiation. Notably, DPP6, CDKN1A, and FZD5 emerged as possible candidate genes linked to ADG variation. These findings enhance our understanding of genetic factors behind ADG variation in Hanwoo cattle, illuminating skeletal muscle mechanisms influencing ADG.
Collapse
Affiliation(s)
- Sunirmal Sheet
- Animal Genomics and Bioinformatics Division, Rural Development Administration, National Institute of Animal Science, Wanju, 55365, Republic of Korea
| | - Sun Sik Jang
- Hanwoo Research Institute, National Institute of Animal Science, RDA, Pyeongchang, 25342, Republic of Korea
| | - Jae Hwan Kim
- Animal Genomics and Bioinformatics Division, Rural Development Administration, National Institute of Animal Science, Wanju, 55365, Republic of Korea
| | - Woncheoul Park
- Animal Genomics and Bioinformatics Division, Rural Development Administration, National Institute of Animal Science, Wanju, 55365, Republic of Korea.
| | - Dahye Kim
- Animal Genomics and Bioinformatics Division, Rural Development Administration, National Institute of Animal Science, Wanju, 55365, Republic of Korea.
| |
Collapse
|
4
|
Sun T, Xu Y, Xiang Y, Ou J, Soderblom EJ, Diao Y. Crosstalk between RNA m 6A and DNA methylation regulates transposable element chromatin activation and cell fate in human pluripotent stem cells. Nat Genet 2023; 55:1324-1335. [PMID: 37474847 PMCID: PMC10766344 DOI: 10.1038/s41588-023-01452-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Accepted: 06/20/2023] [Indexed: 07/22/2023]
Abstract
Transposable elements (TEs) are parasitic DNA sequences accounting for over half of the human genome. Tight control of the repression and activation states of TEs is critical for genome integrity, development, immunity and diseases, including cancer. However, precisely how this regulation is achieved remains unclear. Here we develop a targeted proteomic proximity labeling approach to capture TE-associated proteins in human embryonic stem cells (hESCs). We find that the RNA N6-methyladenosine (m6A) reader, YTHDC2, occupies genomic loci of the primate-specific TE, LTR7/HERV-H, specifically through its interaction with m6A-modified HERV-H RNAs. Unexpectedly, YTHDC2 recruits the DNA 5-methylcytosine (5mC)-demethylase, TET1, to remove 5mC from LTR7/HERV-H and prevent epigenetic silencing. Functionally, the YTHDC2/LTR7 axis inhibits neural differentiation of hESCs. Our results reveal both an underappreciated crosstalk between RNA m6A and DNA 5mC, the most abundant regulatory modifications of RNA and DNA in eukaryotes, and the fact that in hESCs this interplay controls TE activity and cell fate.
Collapse
Affiliation(s)
- Tongyu Sun
- Department of Cell Biology, Duke University Medical Center, Durham, NC, USA
| | - Yueyuan Xu
- Department of Cell Biology, Duke University Medical Center, Durham, NC, USA
- Duke Regeneration Center, Duke University Medical Center, Durham, NC, USA
- Center for Advanced Genomic Technologies, Duke University, Durham, NC, USA
| | - Yu Xiang
- Department of Cell Biology, Duke University Medical Center, Durham, NC, USA
- Duke Regeneration Center, Duke University Medical Center, Durham, NC, USA
| | - Jianhong Ou
- Duke Regeneration Center, Duke University Medical Center, Durham, NC, USA
| | - Erik J Soderblom
- Department of Cell Biology, Duke University Medical Center, Durham, NC, USA
- Proteomics and Metabolomics Shared Resource, Duke Center for Genomic and Computational Biology, Duke University, Durham, NC, USA
| | - Yarui Diao
- Department of Cell Biology, Duke University Medical Center, Durham, NC, USA.
- Duke Regeneration Center, Duke University Medical Center, Durham, NC, USA.
- Center for Advanced Genomic Technologies, Duke University, Durham, NC, USA.
- Duke Cancer Institute, Duke University Medical Center, Durham, NC, USA.
- Department of Orthopaedics Surgery, Duke University Medical Center, Durham, NC, USA.
- Department of Pathology, Duke University Medical Center, Durham, NC, USA.
| |
Collapse
|
5
|
Zhang Y, Beketaev I, Ma Y, Wang J. Sumoylation-deficient phosphoglycerate mutase 2 impairs myogenic differentiation. Front Cell Dev Biol 2022; 10:1052363. [PMID: 36589741 PMCID: PMC9795042 DOI: 10.3389/fcell.2022.1052363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Accepted: 11/28/2022] [Indexed: 12/23/2022] Open
Abstract
Phosphoglycerate mutase 2 (PGAM2) is a critical glycolytic enzyme that is highly expressed in skeletal muscle. In humans, naturally occurring mutations in Phosphoglycerate mutase 2 have been etiologically linked to glycogen storage disease X (GSDX). Phosphoglycerate mutase 2 activity is regulated by several posttranslational modifications such as ubiquitination and acetylation. Here, we report that Phosphoglycerate mutase 2 activity is regulated by sumoylation-a covalent conjugation involved in a wide spectrum of cellular events. We found that Phosphoglycerate mutase 2 contains two primary SUMO acceptor sites, lysine (K)49 and K176, and that the mutation of either K to arginine (R) abolished Phosphoglycerate mutase 2 sumoylation. Given that K176 is more highly evolutionarily conserved across paralogs and orthologs than K49 is, we used the CRISPR-mediated homologous recombination technique in myogenic C2C12 cells to generate homozygous K176R knock-in cells (PGAM2K176R/K176R). Compared with wild-type (WT) C2C12 cells, PGAM2K176R/K176R C2C12 cells exhibited impaired myogenic differentiation, as indicated by decreased differentiation and fusion indexes. Furthermore, the results of glycolytic and mitochondrial stress assays with the XF96 Extracellular Flux analyzer revealed a reduced proton efflux rate (PER), glycolytic PER (glycoPER), extracellular acidification rate (ECAR), and oxygen consumption rate (OCR) in PGAM2K176R/K176R C2C12 cells, both at baseline and in response to stress. Impaired mitochondrial function was also observed in PGAM2K176R/K176R P19 cells, a carcinoma cell line. These findings indicate that the PGAM2-K176R mutation impaired glycolysis and mitochondrial function. Gene ontology term analysis of RNA sequencing data further revealed that several downregulated genes in PGAM2K176R/K176R C2C12 cells were associated with muscle differentiation/development/contraction programs. Finally, PGAM2 with either of two naturally occurring missense mutations linked to GSDX, E89A (conversion of glutamic acid 89 to alanine) or R90W (conversion of arginine 90 to tryptophan), exhibited reduced Phosphoglycerate mutase 2 sumoylation. Thus, sumoylation is an important mechanism that mediates Phosphoglycerate mutase 2 activity and is potentially implicated in Phosphoglycerate mutase 2 mutation-linked disease in humans.
Collapse
Affiliation(s)
- Yi Zhang
- Hainan Provincial Key Laboratory for Human Reproductive Medicine and Genetic Research, Reproductive Medical Center, The First Affiliated Hospital of Hainan Medical University, Hainan Medical University, Haikou, China,Stem Cell Engineering, Texas Heart Institute, Houston, TX, United States
| | - Ilimbek Beketaev
- Stem Cell Engineering, Texas Heart Institute, Houston, TX, United States
| | - Yanlin Ma
- Hainan Provincial Key Laboratory for Human Reproductive Medicine and Genetic Research, Reproductive Medical Center, The First Affiliated Hospital of Hainan Medical University, Hainan Medical University, Haikou, China,Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Medical University, Haikou, China,*Correspondence: Yanlin Ma, ; Jun Wang,
| | - Jun Wang
- Stem Cell Engineering, Texas Heart Institute, Houston, TX, United States,*Correspondence: Yanlin Ma, ; Jun Wang,
| |
Collapse
|
6
|
Serina Secanechia YN, Bergiers I, Rogon M, Arnold C, Descostes N, Le S, López-Anguita N, Ganter K, Kapsali C, Bouilleau L, Gut A, Uzuotaite A, Aliyeva A, Zaugg JB, Lancrin C. Identifying a novel role for the master regulator Tal1 in the Endothelial to Hematopoietic Transition. Sci Rep 2022; 12:16974. [PMID: 36217016 PMCID: PMC9550822 DOI: 10.1038/s41598-022-20906-0] [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: 10/27/2021] [Accepted: 09/20/2022] [Indexed: 12/29/2022] Open
Abstract
Progress in the generation of Hematopoietic Stem and Progenitor Cells (HSPCs) in vitro and ex vivo has been built on the knowledge of developmental hematopoiesis, underscoring the importance of understanding this process. HSPCs emerge within the embryonic vasculature through an Endothelial-to-Hematopoietic Transition (EHT). The transcriptional regulator Tal1 exerts essential functions in the earliest stages of blood development, but is considered dispensable for the EHT. Nevertheless, Tal1 is expressed with its binding partner Lmo2 and it homologous Lyl1 in endothelial and transitioning cells at the time of EHT. Here, we investigated the function of these genes using a mouse embryonic-stem cell (mESC)-based differentiation system to model hematopoietic development. We showed for the first time that the expression of TAL1 in endothelial cells is crucial to ensure the efficiency of the EHT process and a sustained hematopoietic output. Our findings uncover an important function of Tal1 during the EHT, thus filling the current gap in the knowledge of the role of this master gene throughout the whole process of hematopoietic development.
Collapse
Affiliation(s)
- Yasmin Natalia Serina Secanechia
- grid.418924.20000 0004 0627 3632European Molecular Biology Laboratory, EMBL Rome - Epigenetics and Neurobiology Unit, via E. Ramarini 32, 00015 Monterotondo, Italy
| | - Isabelle Bergiers
- grid.418924.20000 0004 0627 3632European Molecular Biology Laboratory, EMBL Rome - Epigenetics and Neurobiology Unit, via E. Ramarini 32, 00015 Monterotondo, Italy ,grid.419619.20000 0004 0623 0341Present Address: Therapeutics Discovery, Pharmaceutical Companies of Johnson & Johnson, Janssen Research & Development, Turnhoutseweg 30, 2340 Beerse, Belgium
| | - Matt Rogon
- grid.4709.a0000 0004 0495 846XEuropean Molecular Biology Laboratory, Centre for Biomolecular Network Analysis, Meyerhofstrasse 1, 69117 Heidelberg, Germany
| | - Christian Arnold
- grid.4709.a0000 0004 0495 846XEuropean Molecular Biology Laboratory, Structural and Computational Biology Unit, Meyerhofstrasse 1, 69117 Heidelberg, Germany
| | - Nicolas Descostes
- grid.418924.20000 0004 0627 3632European Molecular Biology Laboratory, EMBL Rome - Epigenetics and Neurobiology Unit, Bioinformatics Services, via E. Ramarini 32, 00015 Monterotondo, Italy
| | - Stephanie Le
- grid.418924.20000 0004 0627 3632European Molecular Biology Laboratory, EMBL Rome - Epigenetics and Neurobiology Unit, via E. Ramarini 32, 00015 Monterotondo, Italy
| | - Natalia López-Anguita
- grid.418924.20000 0004 0627 3632European Molecular Biology Laboratory, EMBL Rome - Epigenetics and Neurobiology Unit, via E. Ramarini 32, 00015 Monterotondo, Italy ,grid.419538.20000 0000 9071 0620Present Address: Max Planck Institute for Molecular Genetics, Ihnestraße 63-73, 14195 Berlin, Germany
| | - Kerstin Ganter
- grid.418924.20000 0004 0627 3632European Molecular Biology Laboratory, EMBL Rome - Epigenetics and Neurobiology Unit, via E. Ramarini 32, 00015 Monterotondo, Italy
| | - Chrysi Kapsali
- grid.418924.20000 0004 0627 3632European Molecular Biology Laboratory, EMBL Rome - Epigenetics and Neurobiology Unit, via E. Ramarini 32, 00015 Monterotondo, Italy
| | - Lea Bouilleau
- grid.418924.20000 0004 0627 3632European Molecular Biology Laboratory, EMBL Rome - Epigenetics and Neurobiology Unit, via E. Ramarini 32, 00015 Monterotondo, Italy
| | - Aaron Gut
- grid.418924.20000 0004 0627 3632European Molecular Biology Laboratory, EMBL Rome - Epigenetics and Neurobiology Unit, via E. Ramarini 32, 00015 Monterotondo, Italy
| | - Auguste Uzuotaite
- grid.418924.20000 0004 0627 3632European Molecular Biology Laboratory, EMBL Rome - Epigenetics and Neurobiology Unit, via E. Ramarini 32, 00015 Monterotondo, Italy
| | - Ayshan Aliyeva
- grid.418924.20000 0004 0627 3632European Molecular Biology Laboratory, EMBL Rome - Epigenetics and Neurobiology Unit, via E. Ramarini 32, 00015 Monterotondo, Italy
| | - Judith B. Zaugg
- grid.4709.a0000 0004 0495 846XEuropean Molecular Biology Laboratory, Structural and Computational Biology Unit, Meyerhofstrasse 1, 69117 Heidelberg, Germany
| | - Christophe Lancrin
- grid.418924.20000 0004 0627 3632European Molecular Biology Laboratory, EMBL Rome - Epigenetics and Neurobiology Unit, via E. Ramarini 32, 00015 Monterotondo, Italy
| |
Collapse
|
7
|
Xia Y, Chen J, Ma T, Meng X, Han X, Li D. Maternal DBP exposure promotes synaptic formation in offspring by activating astrocytes via the AKT/NF-κB/IL-6/JAK2/STAT3 signaling pathway. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 829:154437. [PMID: 35278568 DOI: 10.1016/j.scitotenv.2022.154437] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 03/04/2022] [Accepted: 03/06/2022] [Indexed: 06/14/2023]
Abstract
It has been demonstrated that activated astrocytes in the hypothalamus could disrupt GnRH secretion in offspring after maternal di-n-butyl phthalate (DBP) exposure, indicating that the effect of DBP on astrocyte activation and crosstalk between astrocytes and neurons is still worthy of further investigation. In this study, pregnant mice were intragastrically administered DBP dissolved in corn oil from gestational days (GD) 12.5-21.5. Maternal DBP exposure resulted in hippocampal astrocyte activation, abnormal synaptic formation, and reduced autonomic and exploratory behavior in offspring on postnatal day (PND) 22. Further studies identified that mono-n-butyl phthalate (MBP) induced astrocyte activation and proliferation by activating the AKT/NF-κB/IL-6/JAK2/STAT3 signaling pathway. Moreover, upregulated thrombospondin 1 (TSP1) in activated astrocytes regulated synaptic-related protein expression. This study highlights the neurotoxicity of maternal DBP exposure to offspring, which provides new insights into identifying potential molecular targets for the treatment of diseases related to neurological development disorders in children.
Collapse
Affiliation(s)
- Yunhui Xia
- Immunology and Reproduction Biology Laboratory & State Key Laboratory of Analytical Chemistry for Life Science, Medical School, Nanjing University, Nanjing, Jiangsu 210093, China; Jiangsu Key Laboratory of Molecular Medicine, Nanjing University, Nanjing, Jiangsu 210093, China
| | - Junhan Chen
- Immunology and Reproduction Biology Laboratory & State Key Laboratory of Analytical Chemistry for Life Science, Medical School, Nanjing University, Nanjing, Jiangsu 210093, China; Jiangsu Key Laboratory of Molecular Medicine, Nanjing University, Nanjing, Jiangsu 210093, China
| | - Tan Ma
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou 225001, China; Jiangsu Key Laboratory of Experimental & Translational Non-coding RNA Research, Yangzhou 225001, China
| | - Xiannan Meng
- Cancer Institute, Xuzhou Medical University, Xuzhou, China; Center of Clinical Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Xiaodong Han
- Immunology and Reproduction Biology Laboratory & State Key Laboratory of Analytical Chemistry for Life Science, Medical School, Nanjing University, Nanjing, Jiangsu 210093, China; Jiangsu Key Laboratory of Molecular Medicine, Nanjing University, Nanjing, Jiangsu 210093, China
| | - Dongmei Li
- Immunology and Reproduction Biology Laboratory & State Key Laboratory of Analytical Chemistry for Life Science, Medical School, Nanjing University, Nanjing, Jiangsu 210093, China; Jiangsu Key Laboratory of Molecular Medicine, Nanjing University, Nanjing, Jiangsu 210093, China.
| |
Collapse
|
8
|
Wang G, Zhao Y, Zhou Y, Jiang L, Liang L, Kong F, Yan Y, Wang X, Wang Y, Wen X, Zeng X, Tian G, Deng G, Shi J, Liu L, Chen H, Li C. PIAS1-mediated SUMOylation of influenza A virus PB2 restricts viral replication and virulence. PLoS Pathog 2022; 18:e1010446. [PMID: 35377920 PMCID: PMC9009768 DOI: 10.1371/journal.ppat.1010446] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 04/14/2022] [Accepted: 03/14/2022] [Indexed: 11/28/2022] Open
Abstract
Host defense systems employ posttranslational modifications to protect against invading pathogens. Here, we found that protein inhibitor of activated STAT 1 (PIAS1) interacts with the nucleoprotein (NP), polymerase basic protein 1 (PB1), and polymerase basic protein 2 (PB2) of influenza A virus (IAV). Lentiviral-mediated stable overexpression of PIAS1 dramatically suppressed the replication of IAV, whereas siRNA knockdown or CRISPR/Cas9 knockout of PIAS1 expression significantly increased virus growth. The expression of PIAS1 was significantly induced upon IAV infection in both cell culture and mice, and PIAS1 was involved in the overall increase in cellular SUMOylation induced by IAV infection. We found that PIAS1 inhibited the activity of the viral RNP complex, whereas the C351S or W372A mutant of PIAS1, which lacks the SUMO E3 ligase activity, lost the ability to suppress the activity of the viral RNP complex. Notably, the SUMO E3 ligase activity of PIAS1 catalyzed robust SUMOylation of PB2, but had no role in PB1 SUMOylation and a minimal role in NP SUMOylation. Moreover, PIAS1-mediated SUMOylation remarkably reduced the stability of IAV PB2. When tested in vivo, we found that the downregulation of Pias1 expression in mice enhanced the growth and virulence of IAV. Together, our findings define PIAS1 as a restriction factor for the replication and pathogenesis of IAV. SUMOylation appears to be an important posttranslational modification mechanism of proteins, including viral proteins. In the present study, we found that the SUMO E3 ligase PIAS1 interacts with the PB2, PB1, and NP proteins of the RNP complex of IAV. PIAS1 expression was found to suppress the viral RNP complex activity. Mechanistically, the SUMO E3 ligase activity of PIAS1 led to robust SUMOylation of IAV PB2, but had no or a minimal effect on the SUMOylation of PB1 and NP, respectively, and PIAS1-mediated SUMOylation significantly decreased the stability of PB2. The expression of PIAS1 was markedly induced upon IAV infection in cell culture and mice, indicating that PIAS1 is actively involved and biologically important in the inhibition of IAV replication. Of note, the role of Pias1 in restricting the replication and virulence of IAV was directly verified in Pias1+/- mice. Our findings thus identify a SUMO E3 ligase that interacts with and SUMOylates IAV PB2, thereby leading to reduced virus replication and virulence in vitro and in vivo.
Collapse
Affiliation(s)
- Guangwen Wang
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, The People’s Republic of China
| | - Yuhui Zhao
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, The People’s Republic of China
| | - Yuan Zhou
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, The People’s Republic of China
| | - Li Jiang
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, The People’s Republic of China
| | - Libin Liang
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, The People’s Republic of China
| | - Fandi Kong
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, The People’s Republic of China
| | - Ya Yan
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, The People’s Republic of China
| | - Xuyuan Wang
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, The People’s Republic of China
| | - Yihan Wang
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, The People’s Republic of China
| | - Xia Wen
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, The People’s Republic of China
| | - Xianying Zeng
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, The People’s Republic of China
| | - Guobin Tian
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, The People’s Republic of China
| | - Guohua Deng
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, The People’s Republic of China
| | - Jianzhong Shi
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, The People’s Republic of China
| | - Liling Liu
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, The People’s Republic of China
| | - Hualan Chen
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, The People’s Republic of China
- * E-mail: (HC); (CL)
| | - Chengjun Li
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, The People’s Republic of China
- * E-mail: (HC); (CL)
| |
Collapse
|
9
|
Xiao Y, Huang W, Huang H, Wang L, Wang M, Zhang T, Fang X, Xia X. miR-182-5p and miR-96-5p Target PIAS1 and Mediate the Negative Feedback Regulatory Loop between PIAS1 and STAT3 in Endometrial Cancer. DNA Cell Biol 2021; 40:618-628. [PMID: 33751900 DOI: 10.1089/dna.2020.6379] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
The expressions and roles of protein inhibitor of activated STAT (PIAS) proteins, a group of proteins with STAT inhibition and SUMOylation E3 ligase activity, are rarely revealed in endometrial cancer (EC). In this study, we analyzed the expressions of PIASs and their relationships with clinical features by mining online data through web servers, including UALCAN and Gene Expression Profiling Interactive Analysis (GEPIA) in EC. The expressions of PIASs in EC tissues were further validated by immunohistochemistry (IHC). The online analyses revealed only PIAS1 was consistently downregulated both at mRNA and protein level in EC, which was validated by the IHC. Subsequently, the mechanism of PIAS1 downregulation was explored with online tools like UALCAN, cBioPortal, LinkedOmics, and the Encyclopedia of RNA Interactomes (ENCORI). The results indicated that the mutation rate of PIAS1 was extremely low and not associated with PIAS1 expression. The promoter methylation level of PIAS1 was comparable between normal and EC tissues. miR-182-5p and miR-96-5p with negative association with PIAS1 in EC were predicted to target PIAS1. Dual luciferase reporter assay confirmed miR-182-5p and miR-96-5p could target PIAS1 in EC. MiR-182-5p and miR-96-5p inhibitors could upregulate PIAS1 in EC cells. Moreover, ectopic PIAS1 expression and STAT3 inhibitor treatment significantly inhibited STAT3's activity and the levels of miR-182-5p and miR-96-5p in EC cells. Collectively, our findings revealed PIAS1 was downregulated in EC, which was caused by upregulation of miR-182-5p and miR-96-5p, and PIAS1 downregulation further activated STAT3 and increased the expression of miR-182-5p and miR-96-5p, confirming miR-182-5p and miR-96-5p mediated the negative feedback regulatory loop between PIAS1 and STAT3 in EC.
Collapse
Affiliation(s)
- Yuzhen Xiao
- Department of Obstetrics and Gynecology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Wei Huang
- Research Center of Carcinogenesis and Targeted Therapy, Xiangya Hospital, Central South University, Changsha, China
| | - Hongyan Huang
- Department of Obstetrics and Gynecology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Lei Wang
- NHC Key Laboratory of Carcinogenesis, Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, School of Basic Medical Science, Central South University, Changsha, China
| | - Min Wang
- Department of Laboratory Medicine, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Tingting Zhang
- Department of Obstetrics and Gynecology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Xiaoling Fang
- Department of Obstetrics and Gynecology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Xiaomeng Xia
- Department of Obstetrics and Gynecology, The Second Xiangya Hospital, Central South University, Changsha, China
| |
Collapse
|
10
|
Garg M, Shanmugam MK, Bhardwaj V, Goel A, Gupta R, Sharma A, Baligar P, Kumar AP, Goh BC, Wang L, Sethi G. The pleiotropic role of transcription factor STAT3 in oncogenesis and its targeting through natural products for cancer prevention and therapy. Med Res Rev 2020; 41:1291-1336. [PMID: 33289118 DOI: 10.1002/med.21761] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 10/30/2020] [Accepted: 11/18/2020] [Indexed: 12/11/2022]
Abstract
Signal transducer and activator of transcription 3 (STAT3) is one of the crucial transcription factors, responsible for regulating cellular proliferation, cellular differentiation, migration, programmed cell death, inflammatory response, angiogenesis, and immune activation. In this review, we have discussed the classical regulation of STAT3 via diverse growth factors, cytokines, G-protein-coupled receptors, as well as toll-like receptors. We have also highlighted the potential role of noncoding RNAs in regulating STAT3 signaling. However, the deregulation of STAT3 signaling has been found to be associated with the initiation and progression of both solid and hematological malignancies. Additionally, hyperactivation of STAT3 signaling can maintain the cancer stem cell phenotype by modulating the tumor microenvironment, cellular metabolism, and immune responses to favor drug resistance and metastasis. Finally, we have also discussed several plausible ways to target oncogenic STAT3 signaling using various small molecules derived from natural products.
Collapse
Affiliation(s)
- Manoj Garg
- Amity Institute of Molecular Medicine and Stem Cell Research (AIMMSCR), Amity University, Noida, Uttar Pradesh, India
| | - Muthu K Shanmugam
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Vipul Bhardwaj
- Amity Institute of Molecular Medicine and Stem Cell Research (AIMMSCR), Amity University, Noida, Uttar Pradesh, India
| | - Akul Goel
- La Canada High School, La Canada Flintridge, California, USA
| | - Rajat Gupta
- Amity Institute of Molecular Medicine and Stem Cell Research (AIMMSCR), Amity University, Noida, Uttar Pradesh, India
| | - Arundhiti Sharma
- Amity Institute of Molecular Medicine and Stem Cell Research (AIMMSCR), Amity University, Noida, Uttar Pradesh, India
| | - Prakash Baligar
- Amity Institute of Molecular Medicine and Stem Cell Research (AIMMSCR), Amity University, Noida, Uttar Pradesh, India
| | - Alan Prem Kumar
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Cancer Science Institute of Singapore, Center for Translational Medicine, Singapore, Singapore
| | - Boon Cher Goh
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Cancer Science Institute of Singapore, Center for Translational Medicine, Singapore, Singapore
- Department of Hematology-Oncology, National University Health System, Singapore, Singapore
| | - Lingzhi Wang
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Cancer Science Institute of Singapore, Center for Translational Medicine, Singapore, Singapore
| | - Gautam Sethi
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| |
Collapse
|
11
|
Penrose HM, Katsurada A, Miyata K, Urushihara M, Satou R. STAT1 regulates interferon-γ-induced angiotensinogen and MCP-1 expression in a bidirectional manner in primary cultured mesangial cells. J Renin Angiotensin Aldosterone Syst 2020; 21:1470320320946527. [PMID: 32741247 PMCID: PMC7412908 DOI: 10.1177/1470320320946527] [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] [Indexed: 11/30/2022] Open
Abstract
Objective: Intrarenal interferon-γ significantly contributes to the development of glomerular injury in which angiotensinogen and monocyte chemoattractant protein 1 levels are elevated. However, the exact nature of the role that interferon-γ plays in regulating angiotensinogen and monocyte chemoattractant protein 1 expression has not been fully delineated. Therefore, the aim of this study was to investigate the role that interferon-γ plays in angiotensinogen and monocyte chemoattractant protein 1 expression. Methods: Primary cultured rat mesangial cells were treated with 0–20 ng/mL interferon-γ for 2, 8 or 24 hours. Expression levels of angiotensinogen, monocyte chemoattractant protein 1, suppressors of cytokine signaling 1, an intracellular suppressor of Janus kinase-signal transducers and activators of transcription signaling and activity of the Janus kinase-signal transducers and activators of transcription pathway were evaluated by reverse transcriptase polymerase chain reaction and western blot analysis. Results: Interferon-γ increased angiotensinogen expression in mesangial cells with maximal augmentation observed following 5 ng/mL interferon-γ at 8 hours of treatment (1.87 ± 0.05, mRNA, relative ratio). Further increases were reduced or absent using higher concentrations of interferon-γ. Following treatments, monocyte chemoattractant protein 1 expression was induced in a linear dose-dependent manner (6.85 ± 0.62-fold by 20 ng/mL interferon-γ at 24 hours). In addition, interferon-γ induced STAT1 phosphorylation and suppressors of cytokine signaling 1 expression in a linear dose-dependent manner. The suppression of STAT1 and suppressors of cytokine signaling 1 expression by small interference RNAs facilitated an increase in interferon-γ-induced angiotensinogen expression, indicating that these two factors negatively regulate angiotensinogen expression. In contrast, the increase in interferon-γ-induced monocyte chemoattractant protein 1 expression was attenuated in STAT1-deficient mesangial cells, suggesting that STAT1 positively regulates monocyte chemoattractant protein 1 expression in mesangial cells. Conclusion: These results demonstrate that while interferon-γ increases both angiotensinogen and monocyte chemoattractant protein 1 expression, STAT1 plays an opposing role in the regulation of each factor in mesangial cells.
Collapse
Affiliation(s)
- Harrison M Penrose
- Department of Physiology, and Hypertension and Renal Center of Excellence, Tulane University School of Medicine, USA
| | - Akemi Katsurada
- Department of Physiology, and Hypertension and Renal Center of Excellence, Tulane University School of Medicine, USA
| | - Kayoko Miyata
- Department of Physiology, and Hypertension and Renal Center of Excellence, Tulane University School of Medicine, USA
| | - Maki Urushihara
- Department of Pediatrics, The University of Tokushima Graduate School, Japan
| | - Ryousuke Satou
- Department of Physiology, and Hypertension and Renal Center of Excellence, Tulane University School of Medicine, USA
| |
Collapse
|
12
|
Abstract
Bone and skeletal muscle are integrated organs and their coupling has been considered mainly a mechanical one in which bone serves as attachment site to muscle while muscle applies load to bone and regulates bone metabolism. However, skeletal muscle can affect bone homeostasis also in a non-mechanical fashion, i.e., through its endocrine activity. Being recognized as an endocrine organ itself, skeletal muscle secretes a panel of cytokines and proteins named myokines, synthesized and secreted by myocytes in response to muscle contraction. Myokines exert an autocrine function in regulating muscle metabolism as well as a paracrine/endocrine regulatory function on distant organs and tissues, such as bone, adipose tissue, brain and liver. Physical activity is the primary physiological stimulus for bone anabolism (and/or catabolism) through the production and secretion of myokines, such as IL-6, irisin, IGF-1, FGF2, beside the direct effect of loading. Importantly, exercise-induced myokine can exert an anti-inflammatory action that is able to counteract not only acute inflammation due to an infection, but also a condition of chronic low-grade inflammation raised as consequence of physical inactivity, aging or metabolic disorders (i.e., obesity, type 2 diabetes mellitus). In this review article, we will discuss the effects that some of the most studied exercise-induced myokines exert on bone formation and bone resorption, as well as a brief overview of the anti-inflammatory effects of myokines during the onset pathological conditions characterized by the development a systemic low-grade inflammation, such as sarcopenia, obesity and aging.
Collapse
Affiliation(s)
- Marta Gomarasca
- IRCCS Istituto Ortopedico Galeazzi, Laboratory of Experimental Biochemistry & Molecular Biology, Milan, Italy
| | - Giuseppe Banfi
- IRCCS Istituto Ortopedico Galeazzi, Laboratory of Experimental Biochemistry & Molecular Biology, Milan, Italy; Vita-Salute San Raffaele University, Milan, Italy
| | - Giovanni Lombardi
- IRCCS Istituto Ortopedico Galeazzi, Laboratory of Experimental Biochemistry & Molecular Biology, Milan, Italy; Gdańsk University of Physical Education & Sport, Gdańsk, Pomorskie, Poland.
| |
Collapse
|
13
|
Interleukin-6 Induces Myogenic Differentiation via JAK2-STAT3 Signaling in Mouse C2C12 Myoblast Cell Line and Primary Human Myoblasts. Int J Mol Sci 2019; 20:ijms20215273. [PMID: 31652937 PMCID: PMC6862063 DOI: 10.3390/ijms20215273] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 10/11/2019] [Accepted: 10/11/2019] [Indexed: 12/25/2022] Open
Abstract
Postnatal muscle growth and exercise- or injury-induced regeneration are facilitated by myoblasts. Myoblasts respond to a variety of proteins such as cytokines that activate various signaling cascades. Cytokines belonging to the interleukin 6 superfamily (IL-6) influence myoblasts' proliferation but their effect on differentiation is still being researched. The Janus kinase (JAK)-signal transducer and activator of transcription (STAT) pathway is one of the key signaling pathways identified to be activated by IL-6. The aim of this study was to investigate myoblast fate as well as activation of JAK-STAT pathway at different physiologically relevant IL-6 concentrations (10 pg/mL; 100 pg/mL; 10 ng/mL) in the C2C12 mouse myoblast cell line and primary human myoblasts, isolated from eight young healthy male volunteers. Myoblasts' cell cycle progression, proliferation and differentiation in vitro were assessed. Low IL-6 concentrations facilitated cell cycle transition from the quiescence/Gap1 (G0/G1) to the synthesis (S-) phases. Low and medium IL-6 concentrations decreased the expression of myoblast determination protein 1 (MyoD) and myogenin and increased proliferating cell nuclear antigen (PCNA) expression. In contrast, high IL-6 concentration shifted a larger proportion of cells to the pro-differentiation G0/G1 phase of the cell cycle, substantiated by significant increases of both MyoD and myogenin expression and decreased PCNA expression. Low IL-6 concentration was responsible for prolonged JAK1 activation and increased suppressor of cytokine signaling 1 (SOCS1) protein expression. JAK-STAT inhibition abrogated IL-6-mediated C2C12 cell proliferation. In contrast, high IL-6 initially increased JAK1 activation but resulted in prolonged JAK2 activation and elevated SOCS3 protein expression. High IL-6 concentration decreased interleukin-6 receptor (IL-6R) expression 24 h after treatment whilst low IL-6 concentration increased IL-6 receptor (IL-6R) expression at the same time point. In conclusion, this study demonstrated that IL-6 has concentration- and time-dependent effects on both C2C12 mouse myoblasts and primary human myoblasts. Low IL-6 concentration induces proliferation whilst high IL-6 concentration induces differentiation. These effects are mediated by specific components of the JAK/STAT/SOCS pathway.
Collapse
|
14
|
Freire PP, Fernandez GJ, Cury SS, de Moraes D, Oliveira JS, de Oliveira G, Dal-Pai-Silva M, Dos Reis PP, Carvalho RF. The Pathway to Cancer Cachexia: MicroRNA-Regulated Networks in Muscle Wasting Based on Integrative Meta-Analysis. Int J Mol Sci 2019; 20:E1962. [PMID: 31013615 PMCID: PMC6515458 DOI: 10.3390/ijms20081962] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 04/05/2019] [Accepted: 04/11/2019] [Indexed: 12/15/2022] Open
Abstract
Cancer cachexia is a multifactorial syndrome that leads to significant weight loss. Cachexia affects 50%-80% of cancer patients, depending on the tumor type, and is associated with 20%-40% of cancer patient deaths. Besides the efforts to identify molecular mechanisms of skeletal muscle atrophy-a key feature in cancer cachexia-no effective therapy for the syndrome is currently available. MicroRNAs are regulators of gene expression, with therapeutic potential in several muscle wasting disorders. We performed a meta-analysis of previously published gene expression data to reveal new potential microRNA-mRNA networks associated with muscle atrophy in cancer cachexia. We retrieved 52 differentially expressed genes in nine studies of muscle tissue from patients and rodent models of cancer cachexia. Next, we predicted microRNAs targeting these differentially expressed genes. We also include global microRNA expression data surveyed in atrophying skeletal muscles from previous studies as background information. We identified deregulated genes involved in the regulation of apoptosis, muscle hypertrophy, catabolism, and acute phase response. We further predicted new microRNA-mRNA interactions, such as miR-27a/Foxo1, miR-27a/Mef2c, miR-27b/Cxcl12, miR-27b/Mef2c, miR-140/Cxcl12, miR-199a/Cav1, and miR-199a/Junb, which may contribute to muscle wasting in cancer cachexia. Finally, we found drugs targeting MSTN, CXCL12, and CAMK2B, which may be considered for the development of novel therapeutic strategies for cancer cachexia. Our study has broadened the knowledge of microRNA-regulated networks that are likely associated with muscle atrophy in cancer cachexia, pointing to their involvement as potential targets for novel therapeutic strategies.
Collapse
Affiliation(s)
- Paula Paccielli Freire
- Department of Morphology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, São Paulo 18.618-619, Brazil.
| | - Geysson Javier Fernandez
- Department of Morphology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, São Paulo 18.618-619, Brazil.
| | - Sarah Santiloni Cury
- Department of Morphology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, São Paulo 18.618-619, Brazil.
| | - Diogo de Moraes
- Department of Morphology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, São Paulo 18.618-619, Brazil.
| | - Jakeline Santos Oliveira
- Department of Morphology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, São Paulo 18.618-619, Brazil.
| | - Grasieli de Oliveira
- Department of Morphology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, São Paulo 18.618-619, Brazil.
| | - Maeli Dal-Pai-Silva
- Department of Morphology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, São Paulo 18.618-619, Brazil.
| | - Patrícia Pintor Dos Reis
- Department of Surgery and Orthopedics, Faculty of Medicine, São Paulo State University (UNESP), Botucatu, São Paulo 18.618-687, Brazil.
- Experimental Research Unity, Faculty of Medicine, São Paulo State University (UNESP), Botucatu, São Paulo 18.618-687, Brazil.
| | - Robson Francisco Carvalho
- Department of Morphology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, São Paulo 18.618-619, Brazil.
| |
Collapse
|
15
|
Swiderski K, Caldow MK, Naim T, Trieu J, Chee A, Koopman R, Lynch GS. Deletion of suppressor of cytokine signaling 3 (SOCS3) in muscle stem cells does not alter muscle regeneration in mice after injury. PLoS One 2019; 14:e0212880. [PMID: 30811469 PMCID: PMC6392323 DOI: 10.1371/journal.pone.0212880] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Accepted: 02/11/2019] [Indexed: 11/19/2022] Open
Abstract
Muscles of older animals are more susceptible to injury and regenerate poorly, in part due to a persistent inflammatory response. The janus kinase (Jak)/signal transducer and activator of transcription (Stat) pathway mediates inflammatory signaling and is tightly regulated by the suppressor of cytokine signaling (SOCS) proteins, especially SOCS3. SOCS3 expression is altered in the muscle of aged animals and may contribute to the persistent inflammation and impaired regeneration. To test this hypothesis, we performed myotoxic injuries on mice with a tamoxifen-inducible deletion of SOCS3 specifically within the muscle stem cell compartment. Muscle stem cell-specific SOCS3 deletion reduced muscle mass at 14 days post-injury (-14%, P < 0.01), altered the myogenic transcriptional program, and reduced myogenic fusion based on the number of centrally-located nuclei per muscle fiber. Despite the delay in myogenesis, muscles with a muscle stem cell-specific deletion of SOCS3 were still able to regenerate after a single bout or multiple bouts of myotoxic injury. A reduction in SOCS3 expression in muscle stem cells is unlikely to be responsible for the incomplete muscle repair in aged animals.
Collapse
Affiliation(s)
- Kristy Swiderski
- Centre for Muscle Research, Department of Physiology, The University of Melbourne, Victoria, Australia
| | - Marissa K. Caldow
- Centre for Muscle Research, Department of Physiology, The University of Melbourne, Victoria, Australia
| | - Timur Naim
- Centre for Muscle Research, Department of Physiology, The University of Melbourne, Victoria, Australia
| | - Jennifer Trieu
- Centre for Muscle Research, Department of Physiology, The University of Melbourne, Victoria, Australia
| | - Annabel Chee
- Centre for Muscle Research, Department of Physiology, The University of Melbourne, Victoria, Australia
| | - René Koopman
- Centre for Muscle Research, Department of Physiology, The University of Melbourne, Victoria, Australia
| | - Gordon S. Lynch
- Centre for Muscle Research, Department of Physiology, The University of Melbourne, Victoria, Australia
- * E-mail:
| |
Collapse
|
16
|
Blunted satellite cell response is associated with dysregulated IGF-1 expression after exercise with age. Eur J Appl Physiol 2018; 118:2225-2231. [PMID: 30062517 DOI: 10.1007/s00421-018-3954-4] [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: 02/12/2018] [Accepted: 05/04/2018] [Indexed: 01/19/2023]
Abstract
PURPOSE Insulin-like growth factor-1 (IGF-1) regulates protein synthesis and cell cycle kinetics. Given that aging is associated with anabolic resistance, we sought to determine if the attenuated exercise-induced satellite cell (SC) expression in older muscle is associated with a blunted IGF-1 response. METHODS SC expression (Pax7+ cells) and protein (Western blot) and mRNA (RT-PCR) expression of IGF-1 splice variants and ubiquitous (IGFBP4) and muscle-specific (IGFBP3 and -5) IGF-1 binding proteins were measured in skeletal muscle of young (Y: 22 ± 2, n = 7) and older (O: 70 ± 2, n = 7) adults up to 48 h after an acute bout of resistance exercise. RESULTS SC expression was greater in Y compared to O (age; P < 0.01) and increased (interaction; P < 0.05) by 24 h after exercise in Y only. IGF-1Ea and IGF-1Eb mRNA tended to be greater in O (age; P < 0.06-0.09). IGF-1Eb mRNA increased at 48 h (time; P < 0.05), whereas IGF-1Ec mRNA increased (interaction; P < 0.05) at 24 and 48 h in O only. IGF binding protein (IGFBP)4 mRNA was greater (age; P < 0.01) in O with the increase at 24 h and 48 h (time; P < 0.01) primarily driven by changes in O (interaction; P < 0.01). Despite IGFBP3 mRNA being greater in O (age; P < 0.01) and increasing at 48 h (time; P < 0.01), there was no effect of age or exercise on IGFBP3 protein expression. In contrast, IGFBP5 mRNA was greater (age; P < 0.01) despite IGFBP5 protein expression being lower (age; P < 0.01) in O compared to Y. CONCLUSIONS The greater muscle-specific expression of IGF-1 family members with a blunted post-exercise SC expression may be a compensatory attempt to rescue age-related anabolic resistance.
Collapse
|
17
|
Pérez-Baos S, Prieto-Potin I, Román-Blas JA, Sánchez-Pernaute O, Largo R, Herrero-Beaumont G. Mediators and Patterns of Muscle Loss in Chronic Systemic Inflammation. Front Physiol 2018; 9:409. [PMID: 29740336 PMCID: PMC5928215 DOI: 10.3389/fphys.2018.00409] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 04/04/2018] [Indexed: 12/25/2022] Open
Abstract
Besides its primary function in locomotion, skeletal muscle (SKM), which represents up to half of human's weight, also plays a fundamental homeostatic role. Through the secretion of soluble peptides, or myokines, SKM interacts with major organs involved in metabolic processes. In turn, metabolic cues from these organs are received by muscle cells, which adapt their response accordingly. This is done through an intricate intracellular signaling network characterized by the cross-talking between anabolic and catabolic pathways. A fine regulation of the network is required to protect the organism from an excessive energy expenditure. Systemic inflammation evokes a catabolic reaction in SKM known as sarcopenia. In turn this response comprises several mechanisms, which vary depending on the nature of the insult and its magnitude. In this regard, aging, chronic inflammatory systemic diseases, osteoarthritis and idiopathic inflammatory myopathies can lead to muscle loss. Interestingly, sarcopenia may persist despite remission of chronic inflammation, an issue which warrants further research. The Janus kinase/signal transducer and activator of transcription (JAK/STAT) system stands as a major participant in muscle loss during systemic inflammation, while it is also a well-recognized orchestrator of muscle cell turnover. Herein we summarize current knowledge about models of sarcopenia, their triggers and major mediators and their effect on both protein and cell growth yields. Also, the dual action of the JAK/STAT pathway in muscle mass changes is discussed. We highlight the need to unravel the precise contribution of this system to sarcopenia in order to design targeted therapeutic strategies.
Collapse
Affiliation(s)
- Sandra Pérez-Baos
- Bone and Joint Research Unit, Service of Rheumatology, IIS-Fundación Jiménez Díaz, Autonomous University of Madrid, Madrid, Spain
| | - Iván Prieto-Potin
- Bone and Joint Research Unit, Service of Rheumatology, IIS-Fundación Jiménez Díaz, Autonomous University of Madrid, Madrid, Spain
| | - Jorge A Román-Blas
- Bone and Joint Research Unit, Service of Rheumatology, IIS-Fundación Jiménez Díaz, Autonomous University of Madrid, Madrid, Spain
| | - Olga Sánchez-Pernaute
- Bone and Joint Research Unit, Service of Rheumatology, IIS-Fundación Jiménez Díaz, Autonomous University of Madrid, Madrid, Spain
| | - Raquel Largo
- Bone and Joint Research Unit, Service of Rheumatology, IIS-Fundación Jiménez Díaz, Autonomous University of Madrid, Madrid, Spain
| | - Gabriel Herrero-Beaumont
- Bone and Joint Research Unit, Service of Rheumatology, IIS-Fundación Jiménez Díaz, Autonomous University of Madrid, Madrid, Spain
| |
Collapse
|
18
|
Shen X, Li Y, Sun G, Guo D, Bai X. miR-181c-3p and -5p promotes high-glucose-induced dysfunction in human umbilical vein endothelial cells by regulating leukemia inhibitory factor. Int J Biol Macromol 2018; 115:509-517. [PMID: 29605252 DOI: 10.1016/j.ijbiomac.2018.03.173] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 03/25/2018] [Accepted: 03/28/2018] [Indexed: 12/11/2022]
Abstract
Diabetes mellitus is a chronic metabolic disease with high blood glucose level and closely related to endothelial dysfunction, an important factor in the pathogenesis of vascular changes. Several miRNAs have been reported to be altered in a diabetic environment including miR-181c. In the article, we found that the expression of miR-181c-3p and miR-181c-5p was significantly downregulated under glucose treatment in a dose-dependent manner and in peripheral blood from diabetic patients compared with healthy participants. We explored the role of miR-181c-3p and miR-181c-5p in high glucose (HG)-induced dysfunction in human umbilical vein endothelial cells (HUVECs) by regulating leukemia inhibitory factor (LIF), their potential target with binding sites in 3-UTR region, that is also closely related to glucose metabolism. In addition, miR-181c-3p and miR-181c-5p significantly enhanced HG-induced oxidative stress injury by increasing malondialdehyde (MDA) and reactive oxygen species (ROS) production and promoted HG-induced HUVECs apoptosis, confirmed by TUNEL staining. LIF partially reduced those effects by decreasing oxidative stress and inhibiting cell apoptosis. Therefore, knocking down of LIF in HUVECs by LIF siRNA transfection, significantly increased HG-induced MDA and ROS production and induced more intense HUVECs apoptosis. Our results indicate that miR-181c-3p and miR-181c-5p promote HG-induced HUVECs injury through their target LIF.
Collapse
Affiliation(s)
- Xinghua Shen
- Department of Cardiology, The Fourth Affiliated Hospital of Harbin Medical University, China
| | - Yunling Li
- Department of Cardiology, The Fourth Affiliated Hospital of Harbin Medical University, China
| | - Guizhi Sun
- Department of Cardiology, The Fourth Affiliated Hospital of Harbin Medical University, China
| | - Dianlong Guo
- Department of Cardiology, The Fourth Affiliated Hospital of Harbin Medical University, China
| | - Xiuping Bai
- Department of Cardiology, The Fourth Affiliated Hospital of Harbin Medical University, China.
| |
Collapse
|
19
|
Molecular mechanism of inhibitory effects of bovine lactoferrin on the growth of oral squamous cell carcinoma. PLoS One 2018; 13:e0191683. [PMID: 29381751 PMCID: PMC5790278 DOI: 10.1371/journal.pone.0191683] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Accepted: 01/09/2018] [Indexed: 12/18/2022] Open
Abstract
Background Lactoferrin (LF), a member of the transferrin family, recently has been demonstrated to have anticancer effects on various cancers including oral squamous cell carcinoma (OSCC). However, little is known about the underlying mechanisms of its effects on OSCC. Therefore, we aimed to investigate the mechanism of the suppressive effects of bovine LF (bLF) on the growth of OSCC cells. Methods In the current study, HSC2, HSC3, HSC4 and normal human oral keratinocytes (RT7) cell lines were tested with bLF 1, 10, and 100 μg/ml. The effects and detail mechanisms of bLF on proliferation and apoptosis of cells were investigated using flow cytometry and western blotting. Results We found that bLF (1, 10, and 100 μg/ml) induced activation of p53, a tumor suppressor gene, is associated with the induction of cell cycle arrest in G1/S phase and apoptosis in OSCC. Moreover, bLF downregulated the phosphorylation of Akt and activated suppressor of cytokine signaling 3 (SOCS3), thereby attenuating multiple signaling pathways including mTOR/S6K and JAK/STAT3. Interestingly, we revealed that bLF exerted its effect selectively against HSC3 but not on RT7 via different effects on the phosphorylation status of NF-κB and Akt. Conclusion This is the first report showing that bLF selectively suppresses proliferation through mTOR/S6K and JAK/STAT3 pathways and induction of apoptosis in OSCC. This study provides important new findings, which might be useful in the prevention and treatment of OSCC.
Collapse
|
20
|
The role of exercise-induced myokines in regulating metabolism. Arch Pharm Res 2017; 41:14-29. [DOI: 10.1007/s12272-017-0994-y] [Citation(s) in RCA: 118] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Accepted: 11/21/2017] [Indexed: 12/25/2022]
|
21
|
Quantitative Proteomic analysis on Activated Hepatic Stellate Cells reversion Reveal STAT1 as a key regulator between Liver Fibrosis and recovery. Sci Rep 2017; 7:44910. [PMID: 28322315 PMCID: PMC5359621 DOI: 10.1038/srep44910] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Accepted: 02/14/2017] [Indexed: 12/23/2022] Open
Abstract
Understanding the changes of activated HSCs reversion is an essential step toward clarifying the potential roles of HSCs in the treatment of liver fibrosis. In this study, we chose adipocyte differentiation mixture to induce LX-2 cells for 2 days in vitro as reversion phase, comparing with normal cultured LX-2 cells as activation phase. Mass spectrometric-based SILAC technology was adopted to study differentially expressed proteome of LX-2 cells between reversion and activation. Compared with activated HSCs, 273 proteins showed significant differences in reverted HSCs. The main pathway of up-regulated proteins associated with reversion of HSCs mainly related to oxidation-reduction and lipid metabolism, while the top pathway of down-regulated proteins was found in regulated cytoskeleton formation. Changes in the expression levels of selected proteins were verified by Western blotting analysis, especially STAT1, FLNA, LASP1, and NAMPT proteins. The distinct roles of STAT1 were further analyzed between activated and reverted of HSCs, it was found that STAT1 could affect cell proliferation of HSCs and could be viewed as a key regulator in the reversion of HSCs. Thus, the proteomic analysis could accelerate our understanding of the mechanisms of HSC reversion on cessation of fibrogenic stimuli and provide new targets for antifibrotic liver therapy.
Collapse
|
22
|
Affiliation(s)
- Yasuro Furuichi
- Department of Health Promotion Sciences, Graduate School of Human Health Sciences, Tokyo Metropolitan University
| | - Nobuharu L. Fujii
- Department of Health Promotion Sciences, Graduate School of Human Health Sciences, Tokyo Metropolitan University
| |
Collapse
|
23
|
Oh KJ, Lee DS, Kim WK, Han BS, Lee SC, Bae KH. Metabolic Adaptation in Obesity and Type II Diabetes: Myokines, Adipokines and Hepatokines. Int J Mol Sci 2016; 18:ijms18010008. [PMID: 28025491 PMCID: PMC5297643 DOI: 10.3390/ijms18010008] [Citation(s) in RCA: 88] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Revised: 11/24/2016] [Accepted: 12/12/2016] [Indexed: 12/21/2022] Open
Abstract
Obesity and type II diabetes are characterized by insulin resistance in peripheral tissues. A high caloric intake combined with a sedentary lifestyle is the leading cause of these conditions. Whole-body insulin resistance and its improvement are the result of the combined actions of each insulin-sensitive organ. Among the fundamental molecular mechanisms by which each organ is able to communicate and engage in cross-talk are cytokines or peptides which stem from secretory organs. Recently, it was reported that several cytokines or peptides are secreted from muscle (myokines), adipose tissue (adipokines) and liver (hepatokines) in response to certain nutrition and/or physical activity conditions. Cytokines exert autocrine, paracrine or endocrine effects for the maintenance of energy homeostasis. The present review is focused on the relationship and cross-talk amongst muscle, adipose tissue and the liver as secretory organs in metabolic diseases.
Collapse
Affiliation(s)
- Kyoung-Jin Oh
- Metabolic Regulation Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Korea.
- Department of Functional Genomics, University of Science and Technology (UST), Daejeon 34141, Korea.
| | - Da Som Lee
- Metabolic Regulation Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Korea.
| | - Won Kon Kim
- Metabolic Regulation Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Korea.
- Department of Functional Genomics, University of Science and Technology (UST), Daejeon 34141, Korea.
| | - Baek Soo Han
- Metabolic Regulation Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Korea.
- Department of Functional Genomics, University of Science and Technology (UST), Daejeon 34141, Korea.
| | - Sang Chul Lee
- Metabolic Regulation Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Korea.
- Department of Functional Genomics, University of Science and Technology (UST), Daejeon 34141, Korea.
| | - Kwang-Hee Bae
- Metabolic Regulation Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Korea.
- Department of Functional Genomics, University of Science and Technology (UST), Daejeon 34141, Korea.
| |
Collapse
|
24
|
Responses of adventitial CD34 + vascular wall-resident stem/progenitor cells and medial smooth muscle cells to carotid injury in rats. Exp Mol Pathol 2016; 101:332-340. [PMID: 27856167 DOI: 10.1016/j.yexmp.2016.11.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Revised: 09/19/2016] [Accepted: 11/11/2016] [Indexed: 12/21/2022]
Abstract
Cell culture and carotid injury studies with SD rats were performed to investigate the roles of CD34+ vascular wall-resident stem/progenitor cells (VRS/Pcs) and vascular smooth muscle cells (SMCs) in neointimal formation. In vitro, the media-isolated SM MHC+ SMCs occupied 93.92±8.62% of total BrdU+ cells, whereas the CD34+ cells, only 2.61±0.82%, indicating that the cell expansion in SMC culture was attributed to SM MHC+ SMCs. The adventitia-isolated CD34+ VRS/Pcs responded to PDGF-BB by differentiating into SMC-like cells which expressed SM22α (an early stage SMC marker), but seldom SM MHC (a late stage SMC marker). In carotid injury model, the CD34+ VRS/Pcs differentiated SMC-like cells migrated in very few numbers into only the outer layer of the media, and this was further confirmed by a cell tracking analysis. While the neointimal cells were consistently SM MHC+ and CD34- SMCs during whole course of the post-injury remodeling. Thus it is speculated that the adventitial CD34+ VRS/Pcs, at least in rat model, do not directly participate in neointimal formation, but function to maintain homeostasis of the media during injury-induced vascular wall remodeling.
Collapse
|
25
|
Zhu H, Xiao F, Wang G, Wei X, Jiang L, Chen Y, Zhu L, Wang H, Diao Y, Wang H, Ip N, Cheung T, Wu Z. STAT3 Regulates Self-Renewal of Adult Muscle Satellite Cells during Injury-Induced Muscle Regeneration. Cell Rep 2016; 16:2102-2115. [DOI: 10.1016/j.celrep.2016.07.041] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2015] [Revised: 06/07/2016] [Accepted: 07/18/2016] [Indexed: 02/06/2023] Open
|
26
|
Zhang T, Sun K, Shen W, Qi L, Yin W, Wang LW. SOCS1 regulates neuropathic pain by inhibiting neuronal sensitization and glial activation in mouse spinal cord. Brain Res Bull 2016; 124:231-7. [PMID: 27233783 DOI: 10.1016/j.brainresbull.2016.05.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Revised: 05/20/2016] [Accepted: 05/22/2016] [Indexed: 02/08/2023]
Abstract
Neuropathic pain is still a basic science and clinical challenge now, the neuronal sensitization and glial activation in the spinal cord (SC) level are more far-reaching for contributing to pain hypersensitivity following chronic constriction injury (CCI). Accumulating evidence indicates that astrocytes and microglia are activated in the spinal cord dorsal horn (SCDH) after CCI. Suppressor of cytokine signaling 1 (SOCS1) plays an important role in regulating of neuronal inflammation. Here, we investigated the role of SOCS1 in SC played in neuropathic pain. We find SOCS1 was persistently downregulated in the spinal neurons after CCI in mice. On the contrary, overexpression of SOCS1 in the SC reversed CCI-induced pain behavioral, activation of neurons, astrocytes, microglia, and the expression of proinflammatory cytokines including tumor necrosis factor α (TNF-α), interleukin 1β (IL-1β) and IL-6. Over all, these results demonstrate that downregulation of SOCS1 contributed to the development and maintenance of neuropathic pain via activating of neurons, astrocytes, microglia, and proinflammatory cytokines. SOCS1 may be developed into a potential target for treating neuropathic pain.
Collapse
Affiliation(s)
- Ting Zhang
- Department of Pain Medicine, Xuzhou Central Hospital, Xuzhou, Jiangsu 221004, China
| | - Kai Sun
- Department of Pain Medicine, The Affiliated Hospital of Xuzhou Medical College, Xuzhou, Jiangsu 221004, China
| | - Wen Shen
- Department of Pain Medicine, The Affiliated Hospital of Xuzhou Medical College, Xuzhou, Jiangsu 221004, China
| | - Le Qi
- Department of Pain Medicine, Xuzhou Central Hospital, Xuzhou, Jiangsu 221004, China
| | - Wei Yin
- Department of Pain Medicine, Xuzhou Central Hospital, Xuzhou, Jiangsu 221004, China
| | - Li-Wei Wang
- Department of Pain Medicine, Xuzhou Central Hospital, Xuzhou, Jiangsu 221004, China.
| |
Collapse
|
27
|
Yuan J, Zhang F, Niu R. Multiple regulation pathways and pivotal biological functions of STAT3 in cancer. Sci Rep 2015; 5:17663. [PMID: 26631279 PMCID: PMC4668392 DOI: 10.1038/srep17663] [Citation(s) in RCA: 170] [Impact Index Per Article: 18.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Accepted: 11/03/2015] [Indexed: 02/07/2023] Open
Abstract
STAT3 is both a transcription activator and an oncogene that is tightly regulated under normal physiological conditions. However, abundant evidence indicates that STAT3 is persistently activated in several cancers, with a crucial position in tumor onset and progression. In addition to its traditional role in cancer cell proliferation, invasion, and migration, STAT3 also promotes cancer through altering gene expression via epigenetic modification, inducing epithelial–mesenchymal transition (EMT) phenotypes in cancer cells, regulating the tumor microenvironment, and promoting cancer stem cells (CSCs) self-renewal and differentiation. STAT3 is regulated not only by the canonical cytokines and growth factors, but also by the G-protein-coupled receptors, cadherin engagement, Toll-like receptors (TLRs), and microRNA (miRNA). Despite the presence of diverse regulators and pivotal biological functions in cancer, no effective therapeutic inventions are available for inhibiting STAT3 and acquiring potent antitumor effects in the clinic. An improved understanding of the complex roles of STAT3 in cancer is required to achieve optimal therapeutic effects.
Collapse
Affiliation(s)
- Jie Yuan
- Public Laboratory, Key Laboratory of Breast Cancer Prevention and Therapy, Ministry of Education, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin Medical University, Huan-Hu-Xi Road, Ti-Yuan-Bei, He Xi District, Tianjin, 300060, People's Republic of China
| | - Fei Zhang
- Public Laboratory, Key Laboratory of Breast Cancer Prevention and Therapy, Ministry of Education, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin Medical University, Huan-Hu-Xi Road, Ti-Yuan-Bei, He Xi District, Tianjin, 300060, People's Republic of China
| | - Ruifang Niu
- Public Laboratory, Key Laboratory of Breast Cancer Prevention and Therapy, Ministry of Education, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin Medical University, Huan-Hu-Xi Road, Ti-Yuan-Bei, He Xi District, Tianjin, 300060, People's Republic of China
| |
Collapse
|
28
|
Liu Y, Ge X, Dou X, Guo L, Liu Y, Zhou SR, Wei XB, Qian SW, Huang HY, Xu CJ, Jia WP, Dang YJ, Li X, Tang QQ. Protein Inhibitor of Activated STAT 1 (PIAS1) Protects Against Obesity-Induced Insulin Resistance by Inhibiting Inflammation Cascade in Adipose Tissue. Diabetes 2015; 64:4061-74. [PMID: 26324179 DOI: 10.2337/db15-0278] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2015] [Accepted: 07/15/2015] [Indexed: 11/13/2022]
Abstract
Obesity is associated with chronic low-level inflammation, especially in fat tissues, which contributes to insulin resistance and type 2 diabetes mellitus (T2DM). Protein inhibitor of activated STAT 1 (PIAS1) modulates a variety of cellular processes such as cell proliferation and DNA damage responses. Particularly, PIAS1 functions in the innate immune system and is a key regulator of the inflammation cascade. However, whether PIAS1 is involved in the regulation of insulin sensitivity remains unknown. Here, we demonstrated that PIAS1 expression in white adipose tissue (WAT) was downregulated by c-Jun N-terminal kinase in prediabetic mice models. Overexpression of PIAS1 in inguinal WAT of prediabetic mice significantly improved systemic insulin sensitivity, whereas knockdown of PIAS1 in wild-type mice led to insulin resistance. Mechanistically, PIAS1 inhibited the activation of stress-induced kinases and the expression of nuclear factor-κB target genes in adipocytes, mainly including proinflammatory and chemotactic factors. In doing so, PIAS1 inhibited macrophage infiltration in adipose tissue, thus suppressing amplification of the inflammation cascade, which in turn improved insulin sensitivity. These results were further verified in a fat transplantation model. Our findings shed light on the critical role of PIAS1 in controlling insulin sensitivity and suggest a therapeutic potential of PIAS1 in T2DM.
Collapse
Affiliation(s)
- Yang Liu
- Key Laboratory of Metabolism and Molecular Medicine, the Ministry of Education; Department of Biochemistry and Molecular Biology, Fudan University Shanghai Medical College, Shanghai, China Institute of Stem Cell Research and Regenerative Medicine, Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Xin Ge
- Key Laboratory of Metabolism and Molecular Medicine, the Ministry of Education; Department of Biochemistry and Molecular Biology, Fudan University Shanghai Medical College, Shanghai, China
| | - Xin Dou
- Key Laboratory of Metabolism and Molecular Medicine, the Ministry of Education; Department of Biochemistry and Molecular Biology, Fudan University Shanghai Medical College, Shanghai, China
| | - Liang Guo
- Key Laboratory of Metabolism and Molecular Medicine, the Ministry of Education; Department of Biochemistry and Molecular Biology, Fudan University Shanghai Medical College, Shanghai, China
| | - Yuan Liu
- Key Laboratory of Metabolism and Molecular Medicine, the Ministry of Education; Department of Biochemistry and Molecular Biology, Fudan University Shanghai Medical College, Shanghai, China Institute of Stem Cell Research and Regenerative Medicine, Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Shui-Rong Zhou
- Key Laboratory of Metabolism and Molecular Medicine, the Ministry of Education; Department of Biochemistry and Molecular Biology, Fudan University Shanghai Medical College, Shanghai, China
| | - Xiang-Bo Wei
- Key Laboratory of Metabolism and Molecular Medicine, the Ministry of Education; Department of Biochemistry and Molecular Biology, Fudan University Shanghai Medical College, Shanghai, China
| | - Shu-Wen Qian
- Key Laboratory of Metabolism and Molecular Medicine, the Ministry of Education; Department of Biochemistry and Molecular Biology, Fudan University Shanghai Medical College, Shanghai, China
| | - Hai-Yan Huang
- Key Laboratory of Metabolism and Molecular Medicine, the Ministry of Education; Department of Biochemistry and Molecular Biology, Fudan University Shanghai Medical College, Shanghai, China
| | - Cong-Jian Xu
- Shanghai Key Laboratory of Female Reproductive Endocrine Related Disease, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Wei-Ping Jia
- Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Jiaotong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Yong-Jun Dang
- Key Laboratory of Metabolism and Molecular Medicine, the Ministry of Education; Department of Biochemistry and Molecular Biology, Fudan University Shanghai Medical College, Shanghai, China
| | - Xi Li
- Key Laboratory of Metabolism and Molecular Medicine, the Ministry of Education; Department of Biochemistry and Molecular Biology, Fudan University Shanghai Medical College, Shanghai, China Institute of Stem Cell Research and Regenerative Medicine, Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Qi-Qun Tang
- Key Laboratory of Metabolism and Molecular Medicine, the Ministry of Education; Department of Biochemistry and Molecular Biology, Fudan University Shanghai Medical College, Shanghai, China Institute of Stem Cell Research and Regenerative Medicine, Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| |
Collapse
|
29
|
Wu Y, Shen Y, Kang K, Zhang Y, Ao F, Wan Y, Song J. Effects of estrogen on growth and smooth muscle differentiation of vascular wall-resident CD34(+) stem/progenitor cells. Atherosclerosis 2015; 240:453-61. [PMID: 25898000 DOI: 10.1016/j.atherosclerosis.2015.04.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2014] [Revised: 04/03/2015] [Accepted: 04/04/2015] [Indexed: 01/12/2023]
Abstract
OBJECTIVES To investigate the effects of estrogen on growth and smooth muscle cell (SMC)-differentiation of vascular wall-resident CD34(+) stem/progenitor cells (VRS/Pcs). METHODS AND RESULTS The existence of CD34(+) VRS/Pcs was confirmed by immunohistochemistry in the adventitia of arteries of young (2-month-old) and old (24-month-old) female SD rats with less CD34(+) adventitial cells detected in the old. The VRS/Pcs isolated from young animals were grown in Stem cell growth medium or induced to differentiate into SMC with PDGF-BB in the presence or absence of 17β-estrodiol (E2). Flow cytometry, RT-qPCR and Western blot showed that E2 promoted Brdu incorporation of the CD34(+) VRS/Pcs growing in Stem cell growth medium; but when the cells were incubated in PDGF-BB, the hormone enhanced their expression of SMC marker SM22. ChIP and IP assays showed that E2 significantly promoted the binding of pELK1-SRF complex to the promoter of c-fos gene in CD34(+) VRS/Pcs growing in the Stem cell growth medium; but when the cells were stimulated with PDGF-BB, an E2-enhanced binding of myocardin-SRF to the promoter of SM22 gene was found with enhanced expression of SRC3 and its binding to myocardin. The effects of E2 above could be blocked by the estrogen receptor antagonist ICI 182,780 or inhibited by SRF-siRNA. CONCLUSION Estrogen has dual effects on CD34(+) VRS/Pcs. For the undifferentiated VRS/Pcs, it accelerates their proliferation by enhancing binding of pELK1-SRF complex to c-fos gene; while for the differentiating VRS/Pcs, it promotes their differentiation to SMC through a mechanism of SRC3-mediated interaction of myocardin-SRF complex with SM22 gene.
Collapse
Affiliation(s)
- Yan Wu
- Department of Anatomy and Embryology, Wuhan University School of Basic Medical Sciences, 135 Donghu Road, Wuhan 430071, Hubei, PR China
| | - Yan Shen
- Department of Physiology, Wuhan University School of Basic Medical Sciences, 135 Donghu Road, Wuhan 430071, Hubei, PR China
| | - Kai Kang
- Department of Anatomy and Embryology, Wuhan University School of Basic Medical Sciences, 135 Donghu Road, Wuhan 430071, Hubei, PR China
| | - Yanhong Zhang
- Department of Anatomy and Embryology, Wuhan University School of Basic Medical Sciences, 135 Donghu Road, Wuhan 430071, Hubei, PR China
| | - Feng Ao
- Department of Anatomy and Embryology, Wuhan University School of Basic Medical Sciences, 135 Donghu Road, Wuhan 430071, Hubei, PR China
| | - Yu Wan
- Department of Physiology, Wuhan University School of Basic Medical Sciences, 135 Donghu Road, Wuhan 430071, Hubei, PR China.
| | - Jian Song
- Department of Anatomy and Embryology, Wuhan University School of Basic Medical Sciences, 135 Donghu Road, Wuhan 430071, Hubei, PR China.
| |
Collapse
|
30
|
Moberg C, Bourlev V, Ilyasova N, Olovsson M. Endometrial expression of LIF and its receptor and peritoneal fluid levels of IL-1α and IL-6 in women with endometriosis are associated with the probability of pregnancy. Arch Gynecol Obstet 2015; 292:429-37. [DOI: 10.1007/s00404-015-3626-0] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Accepted: 01/15/2015] [Indexed: 02/07/2023]
|
31
|
Choi YS, Park JK, Kang EH, Lee YK, Kim TK, Chung JH, Zimmerer JM, Carson WE, Song YW, Lee YJ. Cytokine signaling-1 suppressor is inducible by IL-1beta and inhibits the catabolic effects of IL-1beta in chondrocytes: its implication in the paradoxical joint-protective role of IL-1beta. Arthritis Res Ther 2014; 15:R191. [PMID: 24238405 PMCID: PMC3979110 DOI: 10.1186/ar4381] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2013] [Accepted: 11/05/2013] [Indexed: 01/05/2023] Open
Abstract
INTRODUCTION Although IL-1β is believed to be crucial in the pathogenesis of osteoarthritis (OA), the IL-1β blockade brings no therapeutic benefit in human OA and results in OA aggravation in several animal models. We explored the role of a cytokine signaling 1 (SOCS1) suppressor as a regulatory modulator of IL-1β signaling in chondrocytes. METHODS Cartilage samples were obtained from patients with knee OA and those without OA who underwent surgery for femur-neck fracture. SOCS1 expression in cartilage was assessed with immunohistochemistry. IL-1β-induced SOCS1 expression in chondrocytes was analyzed with quantitative polymerase chain reaction and immunoblot. The effect of SOCS1 on IL-1β signaling pathways and the synthesis of matrix metalloproteinases (MMPs) and aggrecanase-1 was investigated in SOCS1-overexpressing or -knockdown chondrocytes. RESULTS SOCS1 expression was significantly increased in OA cartilage, especially in areas of severe damage (P < 0.01). IL-1β stimulated SOCS1 mRNA expression in a dose-dependent pattern (P < 0.01). The IL-1β-induced production of MMP-1, MMP-3, MMP-13, and ADAMTS-4 (aggrecanase-1, a disintegrin and metalloproteinase with thrombospondin motifs 4) was affected by SOCS1 overexpression or knockdown in both SW1353 cells and primary human articular chondrocytes (all P values < 0.05). The inhibitory effects of SOCS1 were mediated by blocking p38, c-Jun N-terminal kinase (JNK), and nuclear factor κB (NF-κB) activation, and by downregulating transforming growth factor-β-activated kinase 1 (TAK1) expression. CONCLUSIONS Our results show that SOCS1 is induced by IL1-β in OA chondrocytes and suppresses the IL-1β-induced synthesis of matrix-degrading enzymes by inhibiting IL-1β signaling at multiple levels. It suggests that the IL-1β-inducible SOCS1 acts as a negative regulator of the IL-1β response in OA cartilage.
Collapse
|
32
|
Exercise-induced myokines in health and metabolic diseases. Integr Med Res 2014; 3:172-179. [PMID: 28664094 PMCID: PMC5481763 DOI: 10.1016/j.imr.2014.09.007] [Citation(s) in RCA: 83] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2014] [Revised: 09/18/2014] [Accepted: 09/22/2014] [Indexed: 01/03/2023] Open
Abstract
Skeletal muscle has been emerging as a research field since the past 2 decades. Contraction of a muscle, which acts as a secretory organ, stimulates production, secretion, and expression of cytokines or other muscle fiber-derived peptides, i.e., myokines. Exercise-induced myokines influence crosstalk between different organs in an autocrine, endocrine, or paracrine fashion. Myokines are recently recognized as potential candidates for treating metabolic diseases through their ability to stimulate AMP-activated protein kinase signaling, increase glucose uptake, and improve lipolysis. Myokines may have positive effects on metabolic disorders, type 2 diabetes, or obesity. Numerous studies on myokines suggested that myokines offer a potential treatment option for preventing metabolic diseases. This review summarizes the current understanding of the positive effects of exercise-induced myokines, such as interleukin-15, brain-derived neurotrophic factor, leukemia inhibitory factor, irisin, fibroblast growth factor 21, and secreted protein acidic and rich in cysteine, on metabolic diseases.
Collapse
|
33
|
Jang YN, Baik EJ. JAK-STAT pathway and myogenic differentiation. JAKSTAT 2014; 2:e23282. [PMID: 24058805 PMCID: PMC3710318 DOI: 10.4161/jkst.23282] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2012] [Revised: 12/13/2012] [Accepted: 12/14/2012] [Indexed: 11/19/2022] Open
Abstract
Myogenic differentiation plays an important role in muscle regeneration and is regulated by two transcription factor families, MRFs and MEF2, which induce differentiation of myoblasts through expression of the muscle-specific gene, myogenin. In addition, many intracellular signaling pathways are also involved in myogenic differentiation, including p38 MAPK, ERK/MAPK and PI3K/AKT. The JAK-STAT pathway is activated by various cytokines and positively or negatively regulates the differentiation of myoblasts. JAK1 plays a notable role in proliferation; whereas, JAK2 and JAK3 function mainly in differentiation. The STATs, molecules downstream of JAK, regulate myogenesis. With JAK1, STAT1 promotes proliferation, while STAT3 has a dual effect on proliferation and differentiation. The JAK-STAT negative regulator, SOCS, is also associated with myogenesis; although, its role is controversial. In this review, we will discuss the role of the JAK-STAT pathway on myogenic differentiation.
Collapse
Affiliation(s)
- You-Na Jang
- Department of Physiology; Chronic Inflammatory Disease Research Center; Ajou University School of Medicine; Suwon, Korea
| | | |
Collapse
|
34
|
Nguyen T, Baker JM, Obeid J, Raha S, Parise G, Pedder L, Timmons BW. The effects of resting and exercise serum from children with cystic fibrosis on C2C12 myoblast proliferation in vitro. Physiol Rep 2014; 2:2/6/e12042. [PMID: 24944290 PMCID: PMC4208655 DOI: 10.14814/phy2.12042] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Chronic systemic inflammation is a clinical symptom in children with cystic fibrosis (CF), but the effects on skeletal muscle development are unknown. The aims of this study were to determine (1) the effects of systemic factors from children with CF and healthy controls on myoblast proliferation, and (2) whether exercise serum can have an effect on proliferation in vitro. Eleven children with CF and 11 biological age-matched controls completed two 30-min bouts of cycling at an intensity set at 50% peak mechanical power. Serum samples were collected before exercise (REST), immediately following exercise (EX), and after 60 min of recovery (REC). Serum samples prepared in group-specific pools were used for cell culture experiments. C2C12 myoblasts were incubated in 5% serum and media for 1 h and then immediately harvested for protein and mRNA analysis, or incubated in growth media for 2 days to examine proliferation. C2C12 myoblasts treated with CF serum displayed greater proliferation phenotype than myoblasts treated with control serum. Proliferation did not change with EX or REC serum from children with CF compared to CF REST serum, while proliferation was increased with EX and REC serum from control compared to control REST serum. These findings suggest that systemic factors from children with CF at rest and after exercise can alter myoblast proliferation responses when compared to systemic factors from healthy children, which may have implications on skeletal muscle development.
Collapse
Affiliation(s)
- Thanh Nguyen
- Child Health & Exercise Medicine Program, McMaster University, Hamilton, Ontario, Canada
| | - Jeff M Baker
- Exercise Metabolism Research Group, Department of Kinesiology, McMaster University, Hamilton, Ontario, Canada
| | - Joyce Obeid
- Child Health & Exercise Medicine Program, McMaster University, Hamilton, Ontario, Canada
| | - Sandeep Raha
- Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada
| | - Gianni Parise
- Exercise Metabolism Research Group, Department of Kinesiology, McMaster University, Hamilton, Ontario, Canada
| | - Linda Pedder
- Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada Cystic Fibrosis Clinic, McMaster Children's Hospital, Hamilton, Ontario, Canada
| | - Brian W Timmons
- Child Health & Exercise Medicine Program, McMaster University, Hamilton, Ontario, Canada
| |
Collapse
|
35
|
Abstract
Skeletal muscle is the largest organ in the body. Skeletal muscles are primarily characterized by their mechanical activity required for posture, movement, and breathing, which depends on muscle fiber contractions. However, skeletal muscle is not just a component in our locomotor system. Recent evidence has identified skeletal muscle as a secretory organ. We have suggested that cytokines and other peptides that are produced, expressed, and released by muscle fibers and exert either autocrine, paracrine, or endocrine effects should be classified as "myokines." The muscle secretome consists of several hundred secreted peptides. This finding provides a conceptual basis and a whole new paradigm for understanding how muscles communicate with other organs such as adipose tissue, liver, pancreas, bones, and brain. In addition, several myokines exert their effects within the muscle itself. Many proteins produced by skeletal muscle are dependent upon contraction. Therefore, it is likely that myokines may contribute in the mediation of the health benefits of exercise.
Collapse
Affiliation(s)
- Bente K Pedersen
- The Centre of Inflammation and Metabolism at Department of Infectious Diseases, University of Copenhagen, Copenhagen, Denmark.
| |
Collapse
|
36
|
Diao Y, Guo X, Jiang L, Wang G, Zhang C, Wan J, Jin Y, Wu Z. miR-203, a tumor suppressor frequently down-regulated by promoter hypermethylation in rhabdomyosarcoma. J Biol Chem 2013; 289:529-39. [PMID: 24247238 DOI: 10.1074/jbc.m113.494716] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Rhabdomyosarcoma (RMS) is the most common soft tissue sarcoma found in children and young adults. It is characterized by the expression of a number of skeletal muscle-specific proteins, including MyoD and muscle α-actin. However, unlike normal myoblasts, RMS cells differentiate poorly both in vivo and in culture. As microRNAs are known to regulate tumorigenesis, intensive efforts have been made to identify microRNAs that are involved in RMS development. In this work, we found that miR-203 was frequently down-regulated by promoter hypermethylation in both RMS cell lines and RMS biopsies and could be reactivated by DNA-demethylating agents. Re-expression of miR-203 in RMS cells inhibited their migration and proliferation and promoted terminal myogenic differentiation. Mechanistically, miR-203 exerts its tumor-suppressive effect by directly targeting p63 and leukemia inhibitory factor receptor in RMS cells, which promotes myogenic differentiation by inhibiting the Notch and the JAK1/STAT1/STAT3 pathways, respectively. Our work reveals that miR-203 functions as a tumor suppressor in RMS development.
Collapse
Affiliation(s)
- Yarui Diao
- From the Biomedical Research Institute, Shenzhen Peking University-Hong Kong University of Science and Technology Medical Center, 518036 Shenzhen
| | | | | | | | | | | | | | | |
Collapse
|
37
|
Protein inhibitor of activated STAT 1 (PIAS1) is identified as the SUMO E3 ligase of CCAAT/enhancer-binding protein β (C/EBPβ) during adipogenesis. Mol Cell Biol 2013; 33:4606-17. [PMID: 24061474 DOI: 10.1128/mcb.00723-13] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
It is well recognized that PIAS1, a SUMO (small ubiquitin-like modifier) E3 ligase, modulates such cellular processes as cell proliferation, DNA damage responses, and inflammation responses. Recent studies have shown that PIAS1 also plays a part in cell differentiation. However, the role of PIAS1 in adipocyte differentiation remains unknown. CCAAT/enhancer-binding protein β (C/EBPβ), a major regulator of adipogenesis, is a target of SUMOylation, but the E3 ligase responsible for the SUMOylation of C/EBPβ has not been identified. The present study showed that PIAS1 functions as a SUMO E3 ligase of C/EBPβ to regulate adipogenesis. PIAS1 expression was significantly and transiently induced on day 4 of 3T3-L1 adipocyte differentiation, when C/EBPβ began to decline. PIAS1 was found to interact with C/EBPβ through the SAP (scaffold attachment factor A/B/acinus/PIAS) domain and SUMOylate it, leading to increased ubiquitination and degradation of C/EBPβ. C/EBPβ became more stable when PIAS1 was silenced by RNA interference (RNAi). Moreover, adipogenesis was inhibited by overexpression of wild-type PIAS1 and promoted by knockdown of PIAS1. The mutational study indicated that the catalytic activity of SUMO E3 ligase was required for PIAS1 to restrain adipogenesis. Importantly, the inhibitory effect of PIAS1 overexpression on adipogenesis was rescued by overexpressed C/EBPβ. Thus, PIAS1 could play a dynamic role in adipogenesis by promoting the SUMOylation of C/EBPβ.
Collapse
|
38
|
Muñoz-Cánoves P, Scheele C, Pedersen BK, Serrano AL. Interleukin-6 myokine signaling in skeletal muscle: a double-edged sword? FEBS J 2013; 280:4131-48. [PMID: 23663276 PMCID: PMC4163639 DOI: 10.1111/febs.12338] [Citation(s) in RCA: 480] [Impact Index Per Article: 43.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2013] [Revised: 04/25/2013] [Accepted: 05/07/2013] [Indexed: 12/19/2022]
Abstract
Interleukin (IL)-6 is a cytokine with pleiotropic functions in different tissues and organs. Skeletal muscle produces and releases significant levels of IL-6 after prolonged exercise and is therefore considered as a myokine. Muscle is also an important target of the cytokine. IL-6 signaling has been associated with stimulation of hypertrophic muscle growth and myogenesis through regulation of the proliferative capacity of muscle stem cells. Additional beneficial effects of IL-6 include regulation of energy metabolism, which is related to the capacity of actively contracting muscle to synthesize and release IL-6. Paradoxically, deleterious actions for IL-6 have also been proposed, such as promotion of atrophy and muscle wasting. We review the current evidence for these apparently contradictory effects, the mechanisms involved and discuss their possible biological implications.
Collapse
Affiliation(s)
- Pura Muñoz-Cánoves
- Cell Biology Group, Department of Experimental and Health Sciences, Pompeu Fabra University (UPF), Institució Catalana de Recerca i Estudis Avançats (ICREA), CIBER on Neurodegenerative diseases (CIBERNED), Barcelona, Spain.
| | | | | | | |
Collapse
|
39
|
Modak R, Basha J, Bharathy N, Maity K, Mizar P, Bhat AV, Vasudevan M, Rao VK, Kok WK, Natesh N, Taneja R, Kundu TK. Probing p300/CBP associated factor (PCAF)-dependent pathways with a small molecule inhibitor. ACS Chem Biol 2013; 8:1311-23. [PMID: 23570531 DOI: 10.1021/cb4000597] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
PCAF (KAT2B) belongs to the GNAT family of lysine acetyltransferases (KAT) and specifically acetylates the histone H3K9 residue and several nonhistone proteins. PCAF is also a transcriptional coactivator. Due to the lack of a PCAF KAT-specific small molecule inhibitor, the exclusive role of the acetyltransferase activity of PCAF is not well understood. Here, we report that a natural compound of the hydroxybenzoquinone class, embelin, specifically inhibits H3Lys9 acetylation in mice and inhibits recombinant PCAF-mediated acetylation with near complete specificity in vitro. Furthermore, using embelin, we have identified the gene networks that are regulated by PCAF during muscle differentiation, further highlighting the broader regulatory functions of PCAF in muscle differentiation in addition to the regulation via MyoD acetylation.
Collapse
Affiliation(s)
- Rahul Modak
- Transcription
and Disease Laboratory,
Molecular Biology and Genetics Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore,
India 560064
| | - Jeelan Basha
- Transcription
and Disease Laboratory,
Molecular Biology and Genetics Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore,
India 560064
| | - Narendra Bharathy
- Department
of Physiology, Yong
Loo Lin School of Medicine, Block MD9, 2 Medical Drive, National University of Singapore, Singapore 117597
| | - Koustav Maity
- Molecular Biophysics Unit, Indian Institute of Science, Bangalore, India 560012
| | - Pushpak Mizar
- Transcription
and Disease Laboratory,
Molecular Biology and Genetics Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore,
India 560064
| | - Akshay V. Bhat
- Transcription
and Disease Laboratory,
Molecular Biology and Genetics Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore,
India 560064
| | - Madavan Vasudevan
- Bionivid Technology [P] Ltd, 401 - 4 AB Cross, 1st Main, Kasturi Nagar,
East of NGEF, Bangalore, India 560043
| | - Vinay Kumar Rao
- Department
of Physiology, Yong
Loo Lin School of Medicine, Block MD9, 2 Medical Drive, National University of Singapore, Singapore 117597
| | - Wai Kay Kok
- Department
of Physiology, Yong
Loo Lin School of Medicine, Block MD9, 2 Medical Drive, National University of Singapore, Singapore 117597
| | - Nagashayana Natesh
- Central Government Health Scheme
Dispensary Number 3, Basavanagudi, Bangalore, India
| | - Reshma Taneja
- Department
of Physiology, Yong
Loo Lin School of Medicine, Block MD9, 2 Medical Drive, National University of Singapore, Singapore 117597
| | - Tapas K. Kundu
- Transcription
and Disease Laboratory,
Molecular Biology and Genetics Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore,
India 560064
| |
Collapse
|
40
|
McKay BR, Ogborn DI, Baker JM, Toth KG, Tarnopolsky MA, Parise G. Elevated SOCS3 and altered IL-6 signaling is associated with age-related human muscle stem cell dysfunction. Am J Physiol Cell Physiol 2013; 304:C717-28. [PMID: 23392112 DOI: 10.1152/ajpcell.00305.2012] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Aging is associated with increased circulating interleukin-6 (IL-6) and a reduced myogenic capacity, marked by reduced muscle stem cell [satellite cell (SC)] activity. Although IL-6 is important for normal SC function, it is unclear whether elevated IL-6 associated with aging alters SC function. We hypothesized that mild chronically elevated IL-6 would be associated with a blunted SC response through altered IL-6 signaling and elevated suppressor of cytokine signaling-3 (SOCS3) in the elderly. Nine healthy older adult men (OA; 69.6 ± 3.9 yr) and 9 young male controls (YC; 21. 3 ± 3.1 yr) completed 4 sets of 10 repetitions of unilateral leg press and knee extension (75% of 1-RM). Muscle biopsies and blood were obtained before and 3, 24, and 48 h after exercise. Basal SC number was 33% lower in OA vs. YC, and the response was blunted in OA. IL-6(+)/Pax7(+) cells demonstrated a divergent response in OA, with YC increasing to 69% at 3 h and peaking at 24 h (72%), while IL-6(+)/Pax7(+) cells were not increased until 48 h in OA (61%). Type II fiber-associated phosphorylated signal transducer and activator of transcription (pSTAT3)(+)/Pax7(+) cells demonstrated a similar delay in OA, not increasing until 48 h (vs. 3 h in YC). SOCS3 protein was 86% higher in OA. These data demonstrate an age-related impairment in normal SC function that appears to be influenced by SOCS3 protein and delayed induction of IL-6 and pSTAT3 in the SCs of OA. Collectively, these data suggest dysregulated IL-6 signaling as a consequence of aging contributes to the blunted muscle stem cell response.
Collapse
Affiliation(s)
- Bryon R McKay
- Department of Kinesiology, McMaster University, Hamilton, Ontario, Canada
| | | | | | | | | | | |
Collapse
|
41
|
Pijet M, Pijet B, Litwiniuk A, Pajak B, Gajkowska B, Orzechowski A. Leptin impairs myogenesis in C2C12 cells through JAK/STAT and MEK signaling pathways. Cytokine 2013. [DOI: 10.1016/j.cyto.2012.11.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
|
42
|
Hoene M, Runge H, Häring HU, Schleicher ED, Weigert C. Interleukin-6 promotes myogenic differentiation of mouse skeletal muscle cells: role of the STAT3 pathway. Am J Physiol Cell Physiol 2013; 304:C128-36. [DOI: 10.1152/ajpcell.00025.2012] [Citation(s) in RCA: 70] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Myogenic differentiation of skeletal muscle cells is characterized by a sequence of events that include activation of signal transducer and activator of transcription 3 (STAT3) and enhanced expression of its target gene Socs3. Autocrine effects of IL-6 may contribute to the activation of the STAT3-Socs3 cascade and thus to myogenic differentiation. The importance of IL-6 and STAT3 for the differentiation process was studied in C2C12 cells and in primary mouse wild-type and IL-6−/− skeletal muscle cells. In differentiating C2C12 myoblasts, the upregulation of IL-6 mRNA expression and protein secretion started after increased phosphorylation of STAT3 on tyrosine 705 and increased mRNA expression of Socs3 was observed. Knockdown of STAT3 and IL-6 mRNA in differentiating C2C12 myoblasts impaired the expression of the myogenic markers myogenin and MyHC IIb and subsequently myotube fusion. However, the knockdown of IL-6 did not prevent the induction of STAT3 tyrosine phosphorylation. The IL-6-independent activation of STAT3 was verified in differentiating primary IL-6−/− myoblasts. The phosphorylation of STAT3 and the expression levels of STAT3, Socs3, and myogenin during differentiation were comparable in the primary myoblasts independent of the genotype. However, IL-6−/− cells failed to induce MyHC IIb expression to the same level as in wild-type cells and showed reduced myotube formation. Supplementation of IL-6 could partially restore the fusion of IL-6−/− cells. These data demonstrate that IL-6 depletion during myogenic differentiation does not reduce the activation of the STAT3-Socs3 cascade, while IL-6 and STAT3 are both necessary to promote myotube fusion.
Collapse
Affiliation(s)
- Miriam Hoene
- Division of Pathobiochemistry and Clinical Chemistry, University Tuebingen, Tuebingen, Germany
- Paul Langerhans Institute Tuebingen, Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Centre Munich, University Tuebingen, Tuebingen, Germany
| | - Heike Runge
- Division of Pathobiochemistry and Clinical Chemistry, University Tuebingen, Tuebingen, Germany
| | - Hans Ulrich Häring
- Division of Endocrinology, Diabetology, Angiology, Nephrology, and Clinical Chemistry, Department of Internal Medicine, University Tuebingen, Tuebingen, Germany; and
- Paul Langerhans Institute Tuebingen, Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Centre Munich, University Tuebingen, Tuebingen, Germany
| | - Erwin D. Schleicher
- Division of Pathobiochemistry and Clinical Chemistry, University Tuebingen, Tuebingen, Germany
- Paul Langerhans Institute Tuebingen, Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Centre Munich, University Tuebingen, Tuebingen, Germany
| | - Cora Weigert
- Division of Pathobiochemistry and Clinical Chemistry, University Tuebingen, Tuebingen, Germany
- Paul Langerhans Institute Tuebingen, Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Centre Munich, University Tuebingen, Tuebingen, Germany
| |
Collapse
|
43
|
Broholm C, Brandt C, Schultz NS, Nielsen AR, Pedersen BK, Scheele C. Deficient leukemia inhibitory factor signaling in muscle precursor cells from patients with type 2 diabetes. Am J Physiol Endocrinol Metab 2012; 303:E283-92. [PMID: 22649064 DOI: 10.1152/ajpendo.00586.2011] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The cytokine leukemia-inhibitory factor (LIF) is expressed by skeletal muscle and induces proliferation of muscle precursor cells, an important feature of skeletal muscle maintenance and repair. We hypothesized that muscle precursor cells from patients with type 2 diabetes had a deficient response to LIF. The mRNA and protein expressions of LIF and its receptor (LIFR) were measured in skeletal muscle biopsies from healthy individuals and patients with type 2 diabetes by use of qPCR and Western blot. LIF signaling and response were studied following administration of recombinant LIF and siRNA knockdown of suppressor of cytokine signaling (SOCS)3 in myoblast cultures established from healthy individuals and patients with type 2 diabetes. Myoblast proliferation rate was assessed by bromodeoxyuridine incorporation. LIF and LIFR proteins were increased in both muscle tissue and cultured myoblasts from diabetic patients. Nonetheless, in the diabetic myoblasts, LIF-induced phosphorylation of signal transducer and activator of transcription (STAT)1 and STAT3 was impaired. The deficient response to LIF administration in the diabetic myoblasts was further emphasized by a lack of increase in LIF-stimulated cell proliferation and a decreased LIF-stimulated induction of the proliferation-promoting factors cyclin D1, JunB, and c-myc. SOCS3 protein was upregulated in diabetic myoblasts, and knockdown of SOCS3 rescued LIF-induced gene expression in diabetic myoblasts, whereas neither STAT1 or STAT3 signaling nor proliferation rate was affected. In conclusion, although LIF and LIFR proteins were increased in muscle tissue and myoblasts from diabetic patients, LIF signaling and LIF-stimulated cell proliferation were impaired in diabetic myoblasts, suggesting a novel mechanism by which muscle function is compromised in diabetes.
Collapse
Affiliation(s)
- Christa Broholm
- Centre of Inflammation and Metabolism, Rigshospitalet, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark.
| | | | | | | | | | | |
Collapse
|
44
|
Scheele C, Nielsen S, Kelly M, Broholm C, Nielsen AR, Taudorf S, Pedersen M, Fischer CP, Pedersen BK. Satellite cells derived from obese humans with type 2 diabetes and differentiated into myocytes in vitro exhibit abnormal response to IL-6. PLoS One 2012; 7:e39657. [PMID: 22761857 PMCID: PMC3383673 DOI: 10.1371/journal.pone.0039657] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2012] [Accepted: 05/24/2012] [Indexed: 01/08/2023] Open
Abstract
Obesity and type 2 diabetes are associated with chronically elevated systemic levels of IL-6, a pro-inflammatory cytokine with a role in skeletal muscle metabolism that signals through the IL-6 receptor (IL-6Rα). We hypothesized that skeletal muscle in obesity-associated type 2 diabetes develops a resistance to IL-6. By utilizing western blot analysis, we demonstrate that IL-6Rα protein was down regulated in skeletal muscle biopsies from obese persons with and without type 2 diabetes. To further investigate the status of IL-6 signaling in skeletal muscle in obesity-associated type 2 diabetes, we isolated satellite cells from skeletal muscle of people that were healthy (He), obese (Ob) or were obese and had type 2 diabetes (DM), and differentiated them in vitro into myocytes. Down-regulation of IL-6Rα was conserved in Ob myocytes. In addition, acute IL-6 administration for 30, 60 and 120 minutes, resulted in a down-regulation of IL-6Rα protein in Ob myocytes compared to both He myocytes (P<0.05) and DM myocytes (P<0.05). Interestingly, there was a strong time-dependent regulation of IL-6Rα protein in response to IL-6 (P<0.001) in He myocytes, not present in the other groups. Assessing downstream signaling, DM, but not Ob myocytes demonstrated a trend towards an increased protein phosphorylation of STAT3 in DM myocytes (P = 0.067) accompanied by a reduced SOCS3 protein induction (P<0.05), in response to IL-6 administration. Despite this loss of negative control, IL-6 failed to increase AMPKα2 activity and IL-6 mRNA expression in DM myocytes. There was no difference in fusion capacity of myocytes between cell groups. Our data suggest that negative control of IL-6 signaling is increased in myocytes in obesity, whereas a dysfunctional IL-6 signaling is established further downstream of IL-6Rα in DM myocytes, possibly representing a novel mechanism by which skeletal muscle function is compromised in type 2 diabetes.
Collapse
Affiliation(s)
- Camilla Scheele
- The Centre of Inflammation and Metabolism at Department of Infectious Diseases and Copenhagen Muscle Research Centre, Rigshospitalet, The Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
- * E-mail:
| | - Søren Nielsen
- The Centre of Inflammation and Metabolism at Department of Infectious Diseases and Copenhagen Muscle Research Centre, Rigshospitalet, The Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Meghan Kelly
- The Centre of Inflammation and Metabolism at Department of Infectious Diseases and Copenhagen Muscle Research Centre, Rigshospitalet, The Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Christa Broholm
- The Centre of Inflammation and Metabolism at Department of Infectious Diseases and Copenhagen Muscle Research Centre, Rigshospitalet, The Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Anders Rinnov Nielsen
- The Centre of Inflammation and Metabolism at Department of Infectious Diseases and Copenhagen Muscle Research Centre, Rigshospitalet, The Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Sarah Taudorf
- The Centre of Inflammation and Metabolism at Department of Infectious Diseases and Copenhagen Muscle Research Centre, Rigshospitalet, The Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Maria Pedersen
- The Centre of Inflammation and Metabolism at Department of Infectious Diseases and Copenhagen Muscle Research Centre, Rigshospitalet, The Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Christian P. Fischer
- The Centre of Inflammation and Metabolism at Department of Infectious Diseases and Copenhagen Muscle Research Centre, Rigshospitalet, The Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Bente Klarlund Pedersen
- The Centre of Inflammation and Metabolism at Department of Infectious Diseases and Copenhagen Muscle Research Centre, Rigshospitalet, The Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
| |
Collapse
|
45
|
Mathieu ME, Saucourt C, Mournetas V, Gauthereau X, Thézé N, Praloran V, Thiébaud P, Bœuf H. LIF-dependent signaling: new pieces in the Lego. Stem Cell Rev Rep 2012; 8:1-15. [PMID: 21537995 PMCID: PMC3285761 DOI: 10.1007/s12015-011-9261-7] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
LIF, a member of the IL6 family of cytokine, displays pleiotropic effects on various cell types and organs. Its critical role in stem cell models (e.g.: murine ES, human mesenchymal cells) and its essential non redundant function during the implantation process of embryos, in eutherian mammals, put this cytokine at the core of many studies aiming to understand its mechanisms of action, which could benefit to medical applications. In addition, its conservation upon evolution raised the challenging question concerning the function of LIF in species in which there is no implantation. We present the recent knowledge about the established and potential functions of LIF in different stem cell models, (embryonic, hematopoietic, mesenchymal, muscle, neural stem cells and iPSC). We will also discuss EVO-DEVO aspects of this multifaceted cytokine.
Collapse
Affiliation(s)
- Marie-Emmanuelle Mathieu
- Univ. de Bordeaux, CIRID, UMR5164, F-33000 Bordeaux, France
- CNRS, CIRID, UMR5164, F-33000 Bordeaux, France
| | - Claire Saucourt
- Univ. de Bordeaux, CIRID, UMR5164, F-33000 Bordeaux, France
- CNRS, CIRID, UMR5164, F-33000 Bordeaux, France
| | - Virginie Mournetas
- Univ. de Bordeaux, CIRID, UMR5164, F-33000 Bordeaux, France
- CNRS, CIRID, UMR5164, F-33000 Bordeaux, France
| | - Xavier Gauthereau
- Univ. de Bordeaux, CIRID, UMR5164, F-33000 Bordeaux, France
- CNRS, CIRID, UMR5164, F-33000 Bordeaux, France
| | - Nadine Thézé
- Univ. de Bordeaux, CIRID, UMR5164, F-33000 Bordeaux, France
- CNRS, CIRID, UMR5164, F-33000 Bordeaux, France
| | - Vincent Praloran
- Univ. de Bordeaux, CIRID, UMR5164, F-33000 Bordeaux, France
- CNRS, CIRID, UMR5164, F-33000 Bordeaux, France
| | - Pierre Thiébaud
- Univ. de Bordeaux, CIRID, UMR5164, F-33000 Bordeaux, France
- CNRS, CIRID, UMR5164, F-33000 Bordeaux, France
| | - Hélène Bœuf
- Univ. de Bordeaux, CIRID, UMR5164, F-33000 Bordeaux, France
- CNRS, CIRID, UMR5164, F-33000 Bordeaux, France
| |
Collapse
|
46
|
Zhou L, Wang L, Lu L, Jiang P, Sun H, Wang H. A novel target of microRNA-29, Ring1 and YY1-binding protein (Rybp), negatively regulates skeletal myogenesis. J Biol Chem 2012; 287:25255-65. [PMID: 22661705 DOI: 10.1074/jbc.m112.357053] [Citation(s) in RCA: 79] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Skeletal muscle cell differentiation (myogenesis) is a process orchestrated by a complex network involving transcription factors, epigenetic regulators, and microRNAs. Previous studies identified miR-29 as a pro-myogenic factor that interacts with components of Polycomb repressive complex, YY1 and Ezh2. In a genome-wide survey of miR-29-mediated transcriptome changes in C2C12 myoblasts, many epigenetic factors were found to be down-regulated by miR-29. Among them, Rybp was shown to be a direct target of miR-29 through binding to its 3' UTR. Functional studies demonstrated that Rybp is down-regulated during myogenesis and acts as a negative regulator of skeletal myogenesis both in vitro during C2C12 differentiation and in vivo in injury-induced muscle regeneration. Furthermore, we found that Rybp and YY1 co-occupy several myogenic loci, including miR-29 itself, to silence their expression, thus forming a Rybp-miR-29 feedback loop. Rybp overexpression was found to enhance the enrichment of Ezh2 and trimethylation of H3K27 at target loci, suggesting it may facilitate the recruitment or stabilization of the Polycomb repressive complex. Collectively, our results identify Rybp as a novel regulator of myogenesis that co-acts with YY1 to silence miR-29 and other myogenic loci.
Collapse
Affiliation(s)
- Liang Zhou
- Department of Obstetrics and Gynaecology, the Chinese University of Hong Kong, Hong Kong, China
| | | | | | | | | | | |
Collapse
|
47
|
Sutherland JM, Keightley RA, Nixon B, Roman SD, Robker RL, Russell DL, McLaughlin EA. Suppressor of cytokine signaling 4 (SOCS4): moderator of ovarian primordial follicle activation. J Cell Physiol 2012; 227:1188-98. [PMID: 21604262 DOI: 10.1002/jcp.22837] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Mammalian ovarian primordial follicle activation and regulation is considered as one of the most important stages of folliculogenesis and as such requires exquisite control. Selection of quiescent follicles to enter the growing pool determines the rate of supply of maturing follicles over the female reproductive lifespan. To coordinate this process a range of positive and negative input signals contribute to determine follicle fate. This study demonstrates that the cytokine Leukemia Inhibitory Factor (LIF) activates the Janus Kinase 1/Signal Transducers and Activators of Transcription 3 (JAK1/STAT3) signaling pathway in pre-granulosa cells and positively regulates primordial follicle activation. Negative regulation of the JAK/STAT pathway is controlled by the suppressor of cytokine signaling 4 (SOCS4) protein, which target members of negative feedback loops, Cardiotrophin like Cytokine (CLC), Poly (rC) Binding Protein 1 (PCBP1), and Cytosolic Malate Dehydrogenase (MDH1) to suppress follicle growth and development.
Collapse
Affiliation(s)
- J M Sutherland
- Priority Research Centre in Reproductive Science, Discipline of Biological Sciences, School of Environmental & Life Sciences, University of Newcastle, Callaghan, New South Wales, Australia
| | | | | | | | | | | | | |
Collapse
|
48
|
Liszewski W, Ritner C, Aurigui J, Wong SSY, Hussain N, Krueger W, Oncken C, Bernstein HS. Developmental effects of tobacco smoke exposure during human embryonic stem cell differentiation are mediated through the transforming growth factor-β superfamily member, Nodal. Differentiation 2012; 83:169-78. [PMID: 22381624 PMCID: PMC3314096 DOI: 10.1016/j.diff.2011.12.005] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2011] [Revised: 12/01/2011] [Accepted: 12/23/2011] [Indexed: 01/19/2023]
Abstract
While the pathologies associated with in utero smoke exposure are well established, their underlying molecular mechanisms are incompletely understood. We differentiated human embryonic stem cells in the presence of physiological concentrations of tobacco smoke and nicotine. Using post hoc microarray analysis, quantitative PCR, and immunoblot analysis, we demonstrated that tobacco smoke has lineage- and stage-specific effects on human embryonic stem cell differentiation, through both nicotine-dependent and -independent pathways. We show that three major stem cell pluripotency/differentiation pathways, Notch, canonical Wnt, and transforming growth factor-β, are affected by smoke exposure, and that Nodal signaling through SMAD2 is specifically impacted by effects on Lefty1, Nodal, and FoxH1. These events are associated with upregulation of microRNA-302a, a post-transcriptional silencer of Lefty1. The described studies provide insight into the mechanisms by which tobacco smoke influences fetal development at the cellular level, and identify specific transcriptional, post-transcriptional, and signaling pathways by which this likely occurs.
Collapse
Affiliation(s)
- Walter Liszewski
- Cardiovascular Research Institute, University of California, San Francisco
| | - Carissa Ritner
- Cardiovascular Research Institute, University of California, San Francisco
| | - Julian Aurigui
- Cardiovascular Research Institute, University of California, San Francisco
| | - Sharon S. Y. Wong
- Cardiovascular Research Institute, University of California, San Francisco
| | | | - Winfried Krueger
- Department of Genetics and Developmental Biology, University of Connecticut
| | - Cheryl Oncken
- Departments of Medicine and Obstetrics and Gynecology, University of Connecticut
| | - Harold S. Bernstein
- Cardiovascular Research Institute, University of California, San Francisco
- Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, San Francisco
- Department of Pediatrics, University of California, San Francisco
| |
Collapse
|
49
|
Jang YN, Lee IJ, Park MC, Baik EJ. Role of JAK3 in myogenic differentiation. Cell Signal 2011; 24:742-9. [PMID: 22120524 DOI: 10.1016/j.cellsig.2011.11.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2011] [Revised: 11/08/2011] [Accepted: 11/08/2011] [Indexed: 01/06/2023]
Abstract
Skeletal muscle differentiation is regulated by transcription factors, including members of the myogenic regulatory factor (MRF) family and many signaling pathways. The JAK1 and JAK2 pathways are known to each have different effects on myoblast proliferation and differentiation; however, the role of JAK3 in myoblast differentiation remains unclear. In this study, we investigated the effect of JAK3 inhibition on myogenic differentiation in the C2C12 mouse myoblast cell line. During myogenic differentiation, treatment with the JAK3 inhibitor WHIp154 significantly increased the number of MHC-positive multinucleated myotubes and the expressions of myosin heavy chain (MHC), myogenin (MGN), MyoD, and myogenic enhancer factor 2 (MEF2). Knockdown of the JAK3 gene using siJAK3 also significantly increased MHC, MGN and MyoD mRNA expressions as well as insulin-like growth factor-II (IGF-II) gene expression. During differentiation, JAK3 was initially activated and later decreased. Differentiation decreased STAT1, which was further decreased by WHIp154. In contrast, STAT3 gradually was elevated during differentiation, and was increased by JAK3 inhibition. Moreover, we found that up-regulation of AKT activity and down-regulation of ERK activity cooperated to accelerate myogenic differentiation. Taken together, these data indicate that JAK3 inhibition potently facilitates myoblast differentiation through antagonistic STAT1/STAT3 activities. Additionally, JAK3 inhibition induced precocious differentiation and played important roles for terminal differentiation, including fusion, which is involved with regulation of AKT and ERK pathways.
Collapse
Affiliation(s)
- You-Na Jang
- Department of Physiology, Ajou University School of Medicine, Suwon, Republic of Korea
| | | | | | | |
Collapse
|
50
|
Chen Z, Ma X, Zhang H, Sun X, Shen S, Li Y, Gu Y, Wang Y, Yan S, Yu Q. Negative regulation of interferon-γ/STAT1 signaling through cell adhesion and cell density-dependent STAT1 dephosphorylation. Cell Signal 2011; 23:1404-12. [PMID: 21511030 DOI: 10.1016/j.cellsig.2011.04.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2011] [Revised: 03/29/2011] [Accepted: 04/04/2011] [Indexed: 01/08/2023]
Abstract
Signal transducer and activator of transcription 1 (STAT1) is an important mediator for cytokine signal transduction, particularly IFN-γ. Following IFN-γ stimulation, STAT1 is activated through tyrosine phosphorylation. Little is known about the function and regulation of STAT1 dephosphorylation after activation. We studied the regulation and function of STAT1 dephosphorylation in different types of cells and found that the phosphorylated STAT1 was quickly dephosphorylated in most of epithelial cells. Further studies revealed that the dephosphorylation of STAT1 was regulated by cell shape/adhesion. Actin cytoskeleton and extracellular matrix (ECM) proteins mediated the STAT1 dephosphorylation through the T-cell protein tyrosine phosphatase TCPTP. Inactivation of the dephosphorylation system by cell detachment rendered the cells more sensitive to IFN-γ-induced cell death. Our results revealed a novel mechanism in regulating IFN-γ/STAT1 signaling. This cell adhesion and cell cytoskeleton-dependent STAT1 dephosphorylation system may have a role in IFN-γ-mediated immunosurveillance for cancer cells by inducing anoikis of detached metastatic cancer cells.
Collapse
Affiliation(s)
- Zhimin Chen
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | | | | | | | | | | | | | | | | | | |
Collapse
|