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Zhang L, Gu W, Liu T, Pei H, Ma Y, Zhao Y, Huang S, Chen M. NDRG2 Deficiency Exacerbates UVB-Induced Skin Inflammation and Oxidative Stress Damage. Inflammation 2024:10.1007/s10753-024-02121-3. [PMID: 39145786 DOI: 10.1007/s10753-024-02121-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2024] [Revised: 07/16/2024] [Accepted: 08/02/2024] [Indexed: 08/16/2024]
Abstract
UVB radiation induces inflammatory and oxidative stress responses, contributing to skin damage, yet the underlying mechanisms are not fully understood. N-Myc downstream-regulated gene 2 (NDRG2), an emerging stress-associated gene, remains unexplored in UVB-induced skin injury. In this study, we detected skin NDRG2 expression after UVB irradiation for the first time and further used Ndrg2 knockout mice to clarify the role of NDRG2 in UVB-induced skin injury. Three-month-old male Ndrg2+/+ and Ndrg2-/- mice (16-18g) were exposed to UVB to induce acute skin damage, and then dorsal skin samples were collected for subsequent analyses. UVB-induced skin damage was scored. Western Blot Analysis, immunofluorescence (IF) double labeling, and immunohistochemistry (IHC) were employed to assess NDRG2 expression and/or distribution. The concentrations of TNF-α, IL-6, IL-1β, MPO, MMP8, superoxide dismutase (SOD), catalase (CAT), and glutathione (GSH) were quantitatively assessed using enzyme-linked immunosorbent assay (ELISA). Hematoxylin and eosin (HE) staining were employed to determine pathological changes. RNA sequencing and analysis were performed to estimate transcript expression levels and analyze mRNA expression. DESeq2 software was employed to identify differentially expressed genes (DEGs). DEGs were visualized using volcanic and heat maps. Gene Ontology (GO) functions and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways were analyzed to identify primary biological functions, metabolic pathways, or signal transduction pathways associated with DEGs. UVB-challenged Ndrg2-/- mice exhibited significantly exacerbated skin damage (erythema, edema, and erosion), neutrophil infiltration, and apoptosis compared to Ndrg2+/+ mice. Furthermore, UVB-challenged Ndrg2-/- mice displayed significantly elevated pro-inflammatory cytokines, myeloperoxidase (MPO), matrix metalloproteinase-8 (MMP8), and reduced antioxidant expression. RNA sequencing identified 1091 significantly differentially expressed genes enriched in inflammation, immune response, and oxidative stress pathways. In conclusion, the deficiency of Ndrg2 markedly exacerbated UVB-induced skin damage by promoting inflammatory responses and inhibiting antioxidant responses. This suggests that stabilizing NDRG2 expression holds promise as a therapeutic strategy for protecting against UVB-induced skin damage.
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Affiliation(s)
- Lixia Zhang
- Department of Plastic and Reconstructive Surgery, Senior Department of Burn and Plastic Surgery, The Fourth Medical Center of Chinese, PLA General Hospital and PLA Medical College, Beijing, 100048, China
| | - Weijie Gu
- Department of Dermatology, Air Force Medical Center, Air Force Medical University, Beijing, 100142, China
| | - Tian Liu
- Senior Department of Burn and Plastic Surgery, The Fourth Medical Center of Chinese PLA General Hospital and PLA Medical College, Beijing, 100048, China
- Department of Burn and Plastic Surgery, General Hospital of Southern Theater Command, PLA, Guangzhou, 510010, China
| | - Haina Pei
- Department of Plastic and Reconstructive Surgery, Senior Department of Burn and Plastic Surgery, The Fourth Medical Center of Chinese, PLA General Hospital and PLA Medical College, Beijing, 100048, China
| | - Yulong Ma
- Department of Anesthesiology, The First Medical Center of Chinese, PLA General Hospital, Beijing, 100853, China
| | - Yi Zhao
- Department of Dermatology, School of Clinical Medicine, Beijing Tsinghua Changgung Hospital, Tsinghua University, Beijing, China.
| | - Sha Huang
- Research Center for Tissue Repair and Regeneration affiliated to the Medical Innovation Research Department, Chinese PLA General Hospital, PLA Medical College, Beijing, 100853, China.
| | - Minliang Chen
- Department of Plastic and Reconstructive Surgery, Senior Department of Burn and Plastic Surgery, The Fourth Medical Center of Chinese, PLA General Hospital and PLA Medical College, Beijing, 100048, China.
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Nielsen SDH, Sahebekhtiari N, Huang Z, Young JF, Rasmussen MK. Comparison of secreted miRNAs and proteins during proliferation and differentiation of bovine satellite cells in culture implies potential roles in regulating myogenesis. Gene 2024; 894:147979. [PMID: 37952749 DOI: 10.1016/j.gene.2023.147979] [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: 09/01/2023] [Revised: 11/01/2023] [Accepted: 11/08/2023] [Indexed: 11/14/2023]
Abstract
Cultivated meat is an emerging new technology to produce sustainable meat for the future. The common approach for cultivated meat, is the isolation of satellite cells from donor animals, followed by in vitro proliferation and differentiation into primitive muscle fibers. The transformation of satellite cells into myofibers is tightly orchestrated by intra-cellular signaling, while the inter-cellular signaling is less well understood. Thus, the current study was conducted to map the secretion of potential signaling molecules (MicroRNAs and proteins) during proliferation and differentiation. Primary cultures of satellite cells were grown to 50% and 80% confluence, representing the proliferative phase or serum-starved for 1 and 3 days to induce differentiation. Post incubation in FBS-free media, the media were collected and analyzed for miRNA and protein content using gene-arrays and LC-MS/MS, respectively. When comparing the miRNA secretome at 50% and 80% confluence, we observed four differentially expressed miRNA, while only five were differentially expressed when comparing Day 1 to Day 3. A subsequent in silico analysis suggested that pathways of importance for myogenesis, e.g., MAPK and AMPK signaling, could be regulated by the secreted miRNAs. In addition, >300 proteins were secreted, including insulin-like growth factor 1 binding proteins 2, 3, 4, 5 and 6. In conclusion, this study demonstrated differential secretion of several miRNAs and proteins during both proliferation and differentiation of bovine satellite cells in vitro.
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Affiliation(s)
| | - Navid Sahebekhtiari
- Department of Food Science, Aarhus University, Agro Food Park 48, 8200 Aarhus N, Denmark
| | - Ziyu Huang
- Department of Food Science, Aarhus University, Agro Food Park 48, 8200 Aarhus N, Denmark
| | - Jette Feveile Young
- Department of Food Science, Aarhus University, Agro Food Park 48, 8200 Aarhus N, Denmark
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Nardo WD, Miotto PM, Bayliss J, Nie S, Keenan SN, Montgomery MK, Watt MJ. Proteomic analysis reveals exercise training induced remodelling of hepatokine secretion and uncovers syndecan-4 as a regulator of hepatic lipid metabolism. Mol Metab 2022; 60:101491. [PMID: 35381388 PMCID: PMC9034320 DOI: 10.1016/j.molmet.2022.101491] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 03/22/2022] [Accepted: 03/29/2022] [Indexed: 11/04/2022] Open
Abstract
Objective Non-alcoholic fatty liver disease (NAFLD) is linked to impaired lipid metabolism and systemic insulin resistance, which is partly mediated by altered secretion of liver proteins known as hepatokines. Regular physical activity can resolve NAFLD and improve its metabolic comorbidities, however, the effects of exercise training on hepatokine secretion and the metabolic impact of exercise-regulated hepatokines in NAFLD remain unresolved. Herein, we examined the effect of endurance exercise training on hepatocyte secreted proteins with the aim of identifying proteins that regulate metabolism and reduce NAFLD severity. Methods C57BL/6 mice were fed a high-fat diet for six weeks to induce NAFLD. Mice were exercise trained for a further six weeks, while the control group remained sedentary. Hepatocytes were isolated two days after the last exercise bout, and intracellular and secreted proteins were detected using label-free mass spectrometry. Hepatocyte secreted factors were applied to skeletal muscle and liver ex vivo and insulin action and fatty acid metabolism were assessed. Syndecan-4 (SDC4), identified as an exercise-responsive hepatokine, was overexpressed in the livers of mice using adeno-associated virus. Whole-body energy homeostasis was assessed by indirect calorimetry and skeletal muscle and liver metabolism was assessed using radiometric techniques. Results Proteomics analysis detected 2657 intracellular and 1593 secreted proteins from mouse hepatocytes. Exercise training remodelled the hepatocyte proteome, with differences in 137 intracellular and 35 secreted proteins. Bioinformatic analysis of hepatocyte secreted proteins revealed enrichment of tumour suppressive proteins and proteins involved in lipid metabolism and mitochondrial function, and suppression of oncogenes and regulators of oxidative stress. Hepatocyte secreted factors from exercise trained mice improved insulin action in skeletal muscle and increased hepatic fatty acid oxidation. Hepatocyte-specific overexpression of SDC4 reduced hepatic steatosis, which was associated with reduced hepatic fatty acid uptake, and blunted pro-inflammatory and pro-fibrotic gene expression. Treating hepatocytes with recombinant ectodomain of SDC4 (secreted form) recapitulated these effects with reduced fatty acid uptake, lipid storage and lipid droplet accumulation. Conclusions Remodelling of hepatokine secretion is an adaptation to regular exercise training that induces changes in metabolism in the liver and skeletal muscle. SDC4 is a novel exercise-responsive hepatokine that decreases fatty acid uptake and reduces steatosis in the liver. By understanding the proteomic changes in hepatocytes with exercise, these findings have potential for the discovery of new therapeutic targets for NAFLD. Exercise training remodels hepatokine secretion. Exercise regulated secreted factors improve insulin action in skeletal muscle. Syndecan-4 (SDC4) is a novel exercise-induced hepatokine. SDC4 reduces hepatic fatty acid uptake and hepatic steatosis.
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Song C, Fang X, Yang Z, Wang Q, Meng F, Chen Y, Chen J, Zhao B, Wang Y, Fang X, Gu L, Zhang C. miR-152 Regulates Bovine Myoblast Proliferation by Targeting KLF6. Animals (Basel) 2021; 11:ani11103001. [PMID: 34680020 PMCID: PMC8532817 DOI: 10.3390/ani11103001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 10/13/2021] [Accepted: 10/16/2021] [Indexed: 01/03/2023] Open
Abstract
Though miRNAs have been reported to regulate bovine myoblast proliferation, but many miRNAs still need to be further explored. Specifically, miR-152 is a highly expressed miRNA in cattle skeletal muscle tissues, but its function in skeletal muscle development is unknown. Herein, we aimed to investigate the role of miR-152 in regulating bovine myoblast proliferation. Functionally, RT-qPCR, Western blotting, EdU assay, and flow cytometry detection results showed that miR-152 inhibited bovine myoblast proliferation. Mechanistically, we demonstrated transcription factor KLF6 was a target gene of miR-152 by means of bioinformatics software prediction and dual-luciferase report analysis, which had been demonstrated to be favorable for myoblast proliferation. Collectively, our research suggested that miR-152 inhibits bovine myoblast proliferation via targeting KLF6.
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Affiliation(s)
- Chengchuang Song
- Institute of Cellular and Molecular Biology, School of Life Science, Jiangsu Normal University, Xuzhou 221116, China; (C.S.); (X.F.); (Q.W.); (F.M.); (Y.C.); (J.C.); (B.Z.); (Y.W.); (X.F.)
| | - Xue Fang
- Institute of Cellular and Molecular Biology, School of Life Science, Jiangsu Normal University, Xuzhou 221116, China; (C.S.); (X.F.); (Q.W.); (F.M.); (Y.C.); (J.C.); (B.Z.); (Y.W.); (X.F.)
| | - Zhaoxin Yang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China;
| | - Qi Wang
- Institute of Cellular and Molecular Biology, School of Life Science, Jiangsu Normal University, Xuzhou 221116, China; (C.S.); (X.F.); (Q.W.); (F.M.); (Y.C.); (J.C.); (B.Z.); (Y.W.); (X.F.)
| | - Fantong Meng
- Institute of Cellular and Molecular Biology, School of Life Science, Jiangsu Normal University, Xuzhou 221116, China; (C.S.); (X.F.); (Q.W.); (F.M.); (Y.C.); (J.C.); (B.Z.); (Y.W.); (X.F.)
| | - Yaqi Chen
- Institute of Cellular and Molecular Biology, School of Life Science, Jiangsu Normal University, Xuzhou 221116, China; (C.S.); (X.F.); (Q.W.); (F.M.); (Y.C.); (J.C.); (B.Z.); (Y.W.); (X.F.)
| | - Junhao Chen
- Institute of Cellular and Molecular Biology, School of Life Science, Jiangsu Normal University, Xuzhou 221116, China; (C.S.); (X.F.); (Q.W.); (F.M.); (Y.C.); (J.C.); (B.Z.); (Y.W.); (X.F.)
| | - Bei Zhao
- Institute of Cellular and Molecular Biology, School of Life Science, Jiangsu Normal University, Xuzhou 221116, China; (C.S.); (X.F.); (Q.W.); (F.M.); (Y.C.); (J.C.); (B.Z.); (Y.W.); (X.F.)
| | - Yanhong Wang
- Institute of Cellular and Molecular Biology, School of Life Science, Jiangsu Normal University, Xuzhou 221116, China; (C.S.); (X.F.); (Q.W.); (F.M.); (Y.C.); (J.C.); (B.Z.); (Y.W.); (X.F.)
| | - Xingtang Fang
- Institute of Cellular and Molecular Biology, School of Life Science, Jiangsu Normal University, Xuzhou 221116, China; (C.S.); (X.F.); (Q.W.); (F.M.); (Y.C.); (J.C.); (B.Z.); (Y.W.); (X.F.)
| | - Lihong Gu
- Institute of Animal Science & Veterinary Medicine, Hainan Academy of Agricultural Sciences, Haikou 571100, China;
| | - Chunlei Zhang
- Institute of Cellular and Molecular Biology, School of Life Science, Jiangsu Normal University, Xuzhou 221116, China; (C.S.); (X.F.); (Q.W.); (F.M.); (Y.C.); (J.C.); (B.Z.); (Y.W.); (X.F.)
- Correspondence:
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Bone progeria diminished the therapeutic effects of bone marrow mesenchymal stem cells on retinal degeneration. Biochem Biophys Res Commun 2020; 531:180-186. [PMID: 32788069 DOI: 10.1016/j.bbrc.2020.07.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Accepted: 07/03/2020] [Indexed: 01/09/2023]
Abstract
Senescence is closely related to the occurrence of retinal degeneration. Recent studies have shown that bone marrow mesenchymal stem cells (BMMSCs) have significant therapeutic effects on retinal degeneration, While BMMSCs suffer from functional decline in bone aging. Whether senescence affects BMMSCs therapy on retinal degeneration remains unknown. Here, we applied the previously established bone progeria animal model, the senescence-accelerated mice-prone 6 (SAMP6) strain, and surprisingly discovered that SAMP6 mice demonstrated retinal degeneration at 6 months old. Furthermore, BMMSCs derived from SAMP6 mice failed to prevent MNU-induced retinal degeneration in vivo. As expected, BMMSCs from SAMP6 mice exhibited impairment in the differentiation capacities, compared to those from the age-matched senescence-accelerated mice-resistant 1 (SAMR1) strain. Moreover, BMMSCs from SAMR1 mice counteracted MNU-induced retinal degeneration, with increased expression of the retina survival hallmark, N-myc downstream regulated gene 2 (NDRG2). Taken together, these findings reveal that bone progeria diminished the therapeutic effects of BMMSC on retinal degeneration.
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Li X, Wu X, Luo P, Xiong L. Astrocyte-specific NDRG2 gene: functions in the brain and neurological diseases. Cell Mol Life Sci 2020; 77:2461-2472. [PMID: 31834421 PMCID: PMC11104915 DOI: 10.1007/s00018-019-03406-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2019] [Revised: 11/27/2019] [Accepted: 11/28/2019] [Indexed: 01/07/2023]
Abstract
In recent years, the roles of astrocytes of the central nervous system in brain function and neurological disease have drawn increasing attention. As a member of the N-myc downstream-regulated gene (NDRG) family, NDRG2 is principally expressed in astrocytes of the central nervous system. NDRG2, which is involved in cell proliferation and differentiation, is commonly regarded as a tumor suppressor. In astrocytes, NDRG2 affects the regulation of apoptosis, astrogliosis, blood-brain barrier integrity, and glutamate clearance. Several preclinical studies have revealed that NDRG2 is implicated in the pathogenesis of many neurological diseases not limited to tumors (mostly glioma in the nervous system), such as stroke, neurodegeneration (Alzheimer's disease and Parkinson's disease), and psychiatric disorders (depression and attention deficit hyperactivity disorder). This review summarizes the biological functions of NDRG2 under physiological and pathological conditions, and further discusses the roles of NDRG2 during the occurrence and development of neurological diseases.
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Affiliation(s)
- Xin Li
- Department of Anesthesiology, Xijing Hospital, Fourth Military Medical University, 127 Changle Xi Road, Xi'an, 710032, China
| | - Xiuquan Wu
- Department of Neurosurgery, Xijing Hospital, Fourth Military Medical University, 127 Changle Xi Road, Xi'an, 710032, China
| | - Peng Luo
- Department of Neurosurgery, Xijing Hospital, Fourth Military Medical University, 127 Changle Xi Road, Xi'an, 710032, China.
| | - Lize Xiong
- Department of Anesthesiology, Xijing Hospital, Fourth Military Medical University, 127 Changle Xi Road, Xi'an, 710032, China.
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Mir BA, Mason SA, May AK, Russell AP, Foletta VC. Overexpression of NDRG2 in skeletal muscle does not ameliorate the effects of stress in vivo. Exp Physiol 2020; 105:1326-1338. [PMID: 32468595 DOI: 10.1113/ep088620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Accepted: 05/26/2020] [Indexed: 11/08/2022]
Abstract
NEW FINDINGS What is the central question of this study? Do elevated levels of the stress-response protein NDRG2 protect against fasting and chronic disease in mouse skeletal muscle? What is the main finding and its importance? NDRG2 levels increased in the tibialis anterior muscle in response to fasting and the effects of motor neurone disease. No alleviation of the stress-related and proteasomal pathways, mitochondrial dysfunction or muscle mass loss was observed even with the addition of exogenous NDRG2 indicating that the increase in NDRG2 is a normal adaptive response. ABSTRACT Skeletal muscle mass loss and dysfunction can arise from stress, which leads to enhanced protein degradation and metabolic impairment. The expression of N-myc downstream-regulated gene 2 (NDRG2) is induced in response to different stressors and is protective against the effects of stress in some tissues and cell types. Here, we investigated the endogenous NDRG2 response to the stress of fasting and chronic disease in mice and whether exogenous NDRG2 overexpression through adeno-associated viral (AAV) treatment ameliorated the response of skeletal muscle to these conditions. Endogenous levels of NDRG2 increased in the tibialis anterior muscle in response to 24 h fasting and with the development of the motor neurone disease, amyotrophic lateral sclerosis, in SOD1G93A transgenic mice. Despite AAV-induced overexpression and increased expression with fasting, NDRG2 was unable to protect against the activation of proteasomal and stress pathways in response to fasting. Furthermore, NDRG2 was unable to reduce muscle mass loss, mitochondrial dysfunction and elevated oxidative and endoplasmic reticulum stress levels in SOD1G93A mice. Conversely, elevated NDRG2 levels did not exacerbate these stress responses. Overall, increasing NDRG2 levels might not be a useful therapeutic strategy to alleviate stress-related disease pathologies in skeletal muscle.
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Affiliation(s)
- Bilal A Mir
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, Australia.,Institute of Muscle Biology & Growth, Leibniz Institute for Farm Animal Biology, Dummerstorf, Germany
| | - Shaun A Mason
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, Australia
| | - Anthony K May
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, Australia
| | - Aaron P Russell
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, Australia
| | - Victoria C Foletta
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, Australia
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Mir BA, Islam R, Kalanon M, Russell AP, Foletta VC. MicroRNA suppression of stress-responsive NDRG2 during dexamethasone treatment in skeletal muscle cells. BMC Mol Cell Biol 2019; 20:12. [PMID: 31138100 PMCID: PMC6537443 DOI: 10.1186/s12860-019-0194-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Accepted: 05/13/2019] [Indexed: 11/10/2022] Open
Abstract
Background MicroRNAs (miRNAs) are increasingly being identified as modulatory molecules for physiological and pathological processes in muscle. Here, we investigated whether miRNAs influenced the expression of the stress-responsive gene N-myc downstream-regulated gene 2 (Ndrg2) in skeletal muscle cells through the targeted degradation or translation inhibition of NDRG2 mRNA transcripts during basal or catabolic stress conditions. Results Three miRNAs, mmu-miR-23a-3p (miR-23a), mmu-miR-23b-3p (miR-23b) and mmu-miR-28-5p (miR-28), were identified using an in silico approach and confirmed to target the 3′ untranslated region of the mouse Ndrg2 gene through luciferase reporter assays. However, miR-23a, -23b or -28 overexpression had no influence on NDRG2 mRNA or protein levels up to 48 h post treatment in mouse C2C12 myotubes under basal conditions. Interestingly, a compensatory decrease in the endogenous levels of the miRNAs in response to each other’s overexpression was measured. Furthermore, dexamethasone, a catabolic stress agent that induces NDRG2 expression, decreased miR-23a and miR-23b endogenous levels at 24 h post treatment suggesting an interplay between these miRNAs and NDRG2 regulation under similar stress conditions. Accordingly, when overexpressed simultaneously, miR-23a, -23b and -28 attenuated the dexamethasone-induced increase of NDRG2 protein translation but did not affect Ndrg2 gene expression. Conclusion These findings highlight modulatory and co-regulatory roles for miR-23a, -23b and -28 and their novel regulation of NDRG2 during stress conditions in muscle. Electronic supplementary material The online version of this article (10.1186/s12860-019-0194-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Bilal A Mir
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Science, Deakin University, Geelong, VIC, 3222, Australia
| | - Rabia Islam
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Science, Deakin University, Geelong, VIC, 3222, Australia
| | - Ming Kalanon
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Science, Deakin University, Geelong, VIC, 3222, Australia
| | - Aaron P Russell
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Science, Deakin University, Geelong, VIC, 3222, Australia
| | - Victoria C Foletta
- Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Science, Deakin University, Geelong, VIC, 3222, Australia.
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Hu CB, Sui BD, Wang BY, Li G, Hu CH, Zheng CX, Du FY, Zhu CH, Li HB, Feng Y, Jin Y, Yu XR. NDRG2 suppression as a molecular hallmark of photoreceptor-specific cell death in the mouse retina. Cell Death Discov 2018; 4:32. [PMID: 30245855 PMCID: PMC6135825 DOI: 10.1038/s41420-018-0101-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Accepted: 08/23/2018] [Indexed: 02/07/2023] Open
Abstract
Photoreceptor cell death is recognized as the key pathogenesis of retinal degeneration, but the molecular basis underlying photoreceptor-specific cell loss in retinal damaging conditions is virtually unknown. The N-myc downstream regulated gene (NDRG) family has recently been reported to regulate cell viability, in particular NDRG1 has been uncovered expression in photoreceptor cells. Accordingly, we herein examined the potential roles of NDRGs in mediating photoreceptor-specific cell loss in retinal damages. By using mouse models of retinal degeneration and the 661 W photoreceptor cell line, we showed that photoreceptor cells are indeed highly sensitive to light exposure and the related oxidative stress, and that photoreceptor cells are even selectively diminished by phototoxins of the alkylating agent N-Methyl-N-nitrosourea (MNU). Unexpectedly, we discovered that of all the NDRG family members, NDRG2, but not the originally hypothesized NDRG1 or other NDRG subtypes, was selectively expressed and specifically responded to retinal damaging conditions in photoreceptor cells. Furthermore, functional experiments proved that NDRG2 was essential for photoreceptor cell viability, which could be attributed to NDRG2 control of the photo-oxidative stress, and that it was the suppression of NDRG2 which led to photoreceptor cell loss in damaging conditions. More importantly, NDRG2 preservation contributed to photoreceptor-specific cell maintenance and retinal protection both in vitro and in vivo. Our findings revealed a previously unrecognized role of NDRG2 in mediating photoreceptor cell homeostasis and established for the first time the molecular hallmark of photoreceptor-specific cell death as NDRG2 suppression, shedding light on improved understanding and therapy of retinal degeneration.
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Affiliation(s)
- Cheng-Biao Hu
- 1Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, 710061 Xi'an, Shaanxi China.,2Key Laboratory of Environment and Genes Related to Diseases (Xi'an Jiaotong University), Ministry of Education, Xi'an, Shaanxi Sheng China
| | - Bing-Dong Sui
- 3State Key Laboratory of Military Stomatology, Center for Tissue Engineering, Fourth Military Medical University, 710032 Xi'an, Shaanxi China.,Xi'an Institute of Tissue Engineering and Regenerative Medicine, 710032 Xi'an, Shaanxi China
| | - Bao-Ying Wang
- 1Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, 710061 Xi'an, Shaanxi China.,2Key Laboratory of Environment and Genes Related to Diseases (Xi'an Jiaotong University), Ministry of Education, Xi'an, Shaanxi Sheng China
| | - Gao Li
- Xi'an Institute of Tissue Engineering and Regenerative Medicine, 710032 Xi'an, Shaanxi China.,5Department of Stomatology, The People's Hospital of Zhangqiu City, 250200 Zhangqiu, Shandong China
| | - Cheng-Hu Hu
- 3State Key Laboratory of Military Stomatology, Center for Tissue Engineering, Fourth Military Medical University, 710032 Xi'an, Shaanxi China.,Xi'an Institute of Tissue Engineering and Regenerative Medicine, 710032 Xi'an, Shaanxi China
| | - Chen-Xi Zheng
- 3State Key Laboratory of Military Stomatology, Center for Tissue Engineering, Fourth Military Medical University, 710032 Xi'an, Shaanxi China.,Xi'an Institute of Tissue Engineering and Regenerative Medicine, 710032 Xi'an, Shaanxi China
| | - Fang-Ying Du
- 1Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, 710061 Xi'an, Shaanxi China.,2Key Laboratory of Environment and Genes Related to Diseases (Xi'an Jiaotong University), Ministry of Education, Xi'an, Shaanxi Sheng China
| | - Chun-Hui Zhu
- 1Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, 710061 Xi'an, Shaanxi China.,2Key Laboratory of Environment and Genes Related to Diseases (Xi'an Jiaotong University), Ministry of Education, Xi'an, Shaanxi Sheng China
| | - Hong-Bo Li
- 1Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, 710061 Xi'an, Shaanxi China.,2Key Laboratory of Environment and Genes Related to Diseases (Xi'an Jiaotong University), Ministry of Education, Xi'an, Shaanxi Sheng China
| | - Yan Feng
- 1Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, 710061 Xi'an, Shaanxi China.,2Key Laboratory of Environment and Genes Related to Diseases (Xi'an Jiaotong University), Ministry of Education, Xi'an, Shaanxi Sheng China
| | - Yan Jin
- 3State Key Laboratory of Military Stomatology, Center for Tissue Engineering, Fourth Military Medical University, 710032 Xi'an, Shaanxi China.,Xi'an Institute of Tissue Engineering and Regenerative Medicine, 710032 Xi'an, Shaanxi China
| | - Xiao-Rui Yu
- 1Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, 710061 Xi'an, Shaanxi China.,2Key Laboratory of Environment and Genes Related to Diseases (Xi'an Jiaotong University), Ministry of Education, Xi'an, Shaanxi Sheng China
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Feng A, Ling C, Xin-Duo L, Bing W, San-Wu W, Yu Z, Yu-Lan H, You-En Z. Hydrogen Sulfide Protects Human Cardiac Fibroblasts Against H 2O 2-induced Injury Through Regulating Autophagy-Related Proteins. Cell Transplant 2018; 27:1222-1234. [PMID: 30022684 PMCID: PMC6434465 DOI: 10.1177/0963689718779361] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Autophagy, an intracellular bulk degradation process of proteins and organelles, can be induced by myocardial ischemia in the heart. However, the causative role of autophagy in the survival of human cardiac fibroblasts and the underlying mechanisms are incompletely understood. Oxidative stress can induce autophagy in cultured cells upon hydrogen peroxide (H2O2) exposure. Because hydrogen sulfide (H2S) regulates reactive oxygen species (ROS) and apoptosis, we hypothesize that H2S may have a cardioprotective function. To examine our hypothesis, we investigated the regulation of autophagy by the H2S donor sodium hydrosulfide (NaHS), using a cell model of human cardiac fibroblasts from adult ventricles (HCF-av) that suffered from endoplasmic reticulum (ER) stress by H2O2. In the present study, we found that the apoptosis and autophagy were induced along with ER stress by H2O2 in the primary cultured HCF-av cells. In contrast, H2S suppressed HCF-av cell apoptosis and autophagic flux, in part directly by inhibiting ROS production and preserving mitochondrial functions.
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Affiliation(s)
- Ao Feng
- 1 Department of Medical Imaging Center, Renmin Hospital, Hubei University of Medicine, Shiyan, China
| | - Chen Ling
- 2 Department of Cardiology, Jinzhou Medical University, Shiyan, China
| | - Lin Xin-Duo
- 3 Institute of Clinical Medicine, Renmin Hospital, Hubei University of Medicine, Shiyan, China.,4 Department of Cardiology, Renmin Hospital, Hubei University of Medicine, Shiyan, China
| | - Wu Bing
- 3 Institute of Clinical Medicine, Renmin Hospital, Hubei University of Medicine, Shiyan, China.,4 Department of Cardiology, Renmin Hospital, Hubei University of Medicine, Shiyan, China
| | - Wu San-Wu
- 3 Institute of Clinical Medicine, Renmin Hospital, Hubei University of Medicine, Shiyan, China.,4 Department of Cardiology, Renmin Hospital, Hubei University of Medicine, Shiyan, China
| | - Zhan Yu
- 3 Institute of Clinical Medicine, Renmin Hospital, Hubei University of Medicine, Shiyan, China.,4 Department of Cardiology, Renmin Hospital, Hubei University of Medicine, Shiyan, China
| | - Huang Yu-Lan
- 3 Institute of Clinical Medicine, Renmin Hospital, Hubei University of Medicine, Shiyan, China.,4 Department of Cardiology, Renmin Hospital, Hubei University of Medicine, Shiyan, China
| | - Zhang You-En
- 3 Institute of Clinical Medicine, Renmin Hospital, Hubei University of Medicine, Shiyan, China.,4 Department of Cardiology, Renmin Hospital, Hubei University of Medicine, Shiyan, China
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11
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Jokl EJ, Hughes GL, Cracknell T, Pownall ME, Blanco G. Transcriptional upregulation of Bag3, a chaperone-assisted selective autophagy factor, in animal models of KY-deficient hereditary myopathy. Dis Model Mech 2018; 11:dmm033225. [PMID: 29914939 PMCID: PMC6078408 DOI: 10.1242/dmm.033225] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Accepted: 06/07/2018] [Indexed: 11/20/2022] Open
Abstract
The importance of kyphoscoliosis peptidase (KY) in skeletal muscle physiology has recently been emphasised by the identification of novel human myopathies associated with KY deficiency. Neither the pathogenic mechanism of KY deficiency nor a specific role for KY in muscle function have been established. However, aberrant localisation of filamin C (FLNC) in muscle fibres has been shown in humans and mice with loss-of-function mutations in the KY gene. FLNC turnover has been proposed to be controlled by chaperone-assisted selective autophagy (CASA), a client-specific and tension-induced pathway that is required for muscle maintenance. Here, we have generated new C2C12 myoblast and zebrafish models of KY deficiency by CRISPR/Cas9 mutagenesis. To obtain insights into the pathogenic mechanism caused by KY deficiency, expression of the co-chaperone BAG3 and other CASA factors was analyzed in the cellular, zebrafish and ky/ky mouse models. Ky-deficient C2C12-derived clones show trends of higher transcription of CASA factors in differentiated myotubes. The ky-deficient zebrafish model (kyyo1/kyyo1 ) lacks overt signs of pathology, but shows significantly increased bag3 and flnca/b expression in embryos and adult muscle. Additionally, kyyo1/kyyo1 embryos challenged by swimming in viscous media show an inability to further increase expression of these factors in contrast with wild-type controls. The ky/ky mouse shows elevated expression of Bag3 in the non-pathological exterior digitorum longus (EDL) and evidence of impaired BAG3 turnover in the pathological soleus. Thus, upregulation of CASA factors appears to be an early and primary molecular hallmark of KY deficiency.
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Affiliation(s)
- Elliot J Jokl
- Department of Biology, University of York, Wentworth Way, York YO10 5DD, UK
| | - Gideon L Hughes
- Department of Biology, University of York, Wentworth Way, York YO10 5DD, UK
| | - Tobias Cracknell
- Department of Biology, University of York, Wentworth Way, York YO10 5DD, UK
| | - Mary E Pownall
- Department of Biology, University of York, Wentworth Way, York YO10 5DD, UK
| | - Gonzalo Blanco
- Department of Biology, University of York, Wentworth Way, York YO10 5DD, UK
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12
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Vitucci D, Imperlini E, Arcone R, Alfieri A, Canciello A, Russomando L, Martone D, Cola A, Labruna G, Orrù S, Tafuri D, Mancini A, Buono P. Serum from differently exercised subjects induces myogenic differentiation in LHCN-M2 human myoblasts. J Sports Sci 2017; 36:1630-1639. [PMID: 29160161 DOI: 10.1080/02640414.2017.1407232] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Myogenesis is the formation of muscle tissue from muscle precursor cells. Physical exercise induces satellite cell activation in muscle. Currently, C2C12 murine myoblast cells are used to study myogenic differentiation. Herein, we evaluated whether human LHCN-M2 myoblasts can differentiate into mature myotubes and express early (myotube formation, creatine kinase activity and myogenin) and late (MyHC-β) muscle-specific markers when cultured in differentiation medium (DM) for 2, 4 and 7 days. We demonstrate that treatment of LHCN-M2 cells with DM supplemented with 0.5% serum from long-term (3 years) differently exercised subjects for 4 days induced myotube formation and significantly increased the early (creatine kinase activity and myogenin) and late (MyHC-β expression) differentiation markers versus cells treated with serum from untrained subjects. Interestingly, serum from aerobic exercised subjects (swimming) had a greater positive effect on late-differentiation marker (MyHC-β) expression than serum from anaerobic (body building) or from mixed exercised (soccer and volleyball) subjects. Moreover, p62and anti-apoptotic Bcl-2 protein expression was lower in LHCN-M2 cells cultured with human sera from differently exercised subjectst han in cells cultured with DM. In conclusion, LHCN-M2 human myoblasts represent a species-specific system with which to study human myogenic differentiation induced by serum from differently exercised subjects.
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Affiliation(s)
| | | | - R Arcone
- b Dipartimento di Scienze Motorie e del Benessere , Università Parthenope , Naples , Italy.,c CEINGE-Biotecnologie Avanzate , Naples , Italy
| | - A Alfieri
- b Dipartimento di Scienze Motorie e del Benessere , Università Parthenope , Naples , Italy.,c CEINGE-Biotecnologie Avanzate , Naples , Italy
| | - A Canciello
- d Facoltà di Bioscienze e Tecnologie Agro-Alimentari e Ambientali , Università di Teramo , Teramo , Italy
| | - L Russomando
- b Dipartimento di Scienze Motorie e del Benessere , Università Parthenope , Naples , Italy
| | - D Martone
- b Dipartimento di Scienze Motorie e del Benessere , Università Parthenope , Naples , Italy
| | - A Cola
- e Dipartimento di Medicina Molecolare e Biotecnologie Mediche , Università Federico II , Naples , Italy
| | | | - S Orrù
- a IRCCS SDN , Naples , Italy.,b Dipartimento di Scienze Motorie e del Benessere , Università Parthenope , Naples , Italy.,c CEINGE-Biotecnologie Avanzate , Naples , Italy
| | - D Tafuri
- b Dipartimento di Scienze Motorie e del Benessere , Università Parthenope , Naples , Italy
| | - A Mancini
- b Dipartimento di Scienze Motorie e del Benessere , Università Parthenope , Naples , Italy.,c CEINGE-Biotecnologie Avanzate , Naples , Italy
| | - P Buono
- a IRCCS SDN , Naples , Italy.,b Dipartimento di Scienze Motorie e del Benessere , Università Parthenope , Naples , Italy.,c CEINGE-Biotecnologie Avanzate , Naples , Italy
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13
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The functional versatility of the nuclear pore complex proteins. Semin Cell Dev Biol 2017; 68:2-9. [DOI: 10.1016/j.semcdb.2017.05.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Accepted: 05/11/2017] [Indexed: 12/28/2022]
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14
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Waqas SFH, Hoang AC, Lin YT, Ampem G, Azegrouz H, Balogh L, Thuróczy J, Chen JC, Gerling IC, Nam S, Lim JS, Martinez-Ibañez J, Real JT, Paschke S, Quillet R, Ayachi S, Simonin F, Schneider EM, Brinkman JA, Lamming DW, Seroogy CM, Röszer T. Neuropeptide FF increases M2 activation and self-renewal of adipose tissue macrophages. J Clin Invest 2017; 127:2842-2854. [PMID: 28581443 DOI: 10.1172/jci90152] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Accepted: 04/06/2017] [Indexed: 12/30/2022] Open
Abstract
The quantity and activation state of adipose tissue macrophages (ATMs) impact the development of obesity-induced metabolic diseases. Appetite-controlling hormones play key roles in obesity; however, our understanding of their effects on ATMs is limited. Here, we have shown that human and mouse ATMs express NPFFR2, a receptor for the appetite-reducing neuropeptide FF (NPFF), and that NPFFR2 expression is upregulated by IL-4, an M2-polarizing cytokine. Plasma levels of NPFF decreased in obese patients and high-fat diet-fed mice and increased following caloric restriction. NPFF promoted M2 activation and increased the proliferation of murine and human ATMs. Both M2 activation and increased ATM proliferation were abolished in NPFFR2-deficient ATMs. Mechanistically, the effects of NPFF involved the suppression of E3 ubiquitin ligase RNF128 expression, resulting in enhanced stability of phosphorylated STAT6 and increased transcription of the M2 macrophage-associated genes IL-4 receptor α (Il4ra), arginase 1 (Arg1), IL-10 (Il10), and alkylglycerol monooxygenase (Agmo). NPFF induced ATM proliferation concomitantly with the increase in N-Myc downstream-regulated gene 2 (Ndrg2) expression and suppressed the transcription of Ifi200 cell-cycle inhibitor family members and MAF bZIP transcription factor B (Mafb), a negative regulator of macrophage proliferation. NPFF thus plays an important role in supporting healthy adipose tissue via the maintenance of metabolically beneficial ATMs.
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Affiliation(s)
| | - Anh Cuong Hoang
- Institute of Comparative Molecular Endocrinology, University of Ulm, Ulm, Germany
| | - Ya-Tin Lin
- Department of Physiology and Pharmacology and Graduate Institute of Biomedical Sciences, Chang Gung University; Neuroscience Research Center, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Grace Ampem
- Institute of Comparative Molecular Endocrinology, University of Ulm, Ulm, Germany
| | - Hind Azegrouz
- Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Lajos Balogh
- National Research Institute for Radiobiology and Radiohygiene, Budapest, Hungary
| | | | - Jin-Chung Chen
- Department of Physiology and Pharmacology and Graduate Institute of Biomedical Sciences, Chang Gung University; Neuroscience Research Center, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Ivan C Gerling
- Department of Medicine, University of Tennessee, Memphis, Tennessee, USA
| | - Sorim Nam
- Department of Biological Science, Sookmyung Women's University, Seoul, South Korea
| | - Jong-Seok Lim
- Department of Biological Science, Sookmyung Women's University, Seoul, South Korea
| | - Juncal Martinez-Ibañez
- Department of Medicine, Hospital Clínico Universitario de València, Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Valencia, Spain
| | - José T Real
- Department of Medicine, Hospital Clínico Universitario de València, Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Valencia, Spain
| | - Stephan Paschke
- Department of General and Visceral Surgery, University Hospital Ulm, Ulm, Germany
| | - Raphaëlle Quillet
- Biotechnologie et Signalisation Cellulaire, UMR 7242, Centre National de Recherche Scientifique (CNRS), Université de Strasbourg, Illkirch, France
| | - Safia Ayachi
- Biotechnologie et Signalisation Cellulaire, UMR 7242, Centre National de Recherche Scientifique (CNRS), Université de Strasbourg, Illkirch, France
| | - Frédéric Simonin
- Biotechnologie et Signalisation Cellulaire, UMR 7242, Centre National de Recherche Scientifique (CNRS), Université de Strasbourg, Illkirch, France
| | - E Marion Schneider
- Division of Experimental Anesthesiology, University Hospital Ulm, Ulm, Germany
| | - Jacqueline A Brinkman
- University of Wisconsin, School of Medicine and Public Health, Madison, Wisconsin, USA.,William S. Middleton Memorial Veterans Hospital, Madison, Wisconsin, USA
| | - Dudley W Lamming
- University of Wisconsin, School of Medicine and Public Health, Madison, Wisconsin, USA.,William S. Middleton Memorial Veterans Hospital, Madison, Wisconsin, USA
| | - Christine M Seroogy
- University of Wisconsin, School of Medicine and Public Health, Madison, Wisconsin, USA
| | - Tamás Röszer
- Institute of Comparative Molecular Endocrinology, University of Ulm, Ulm, Germany
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