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Bai Q, Liu R, Quan C, Han X, Wang D, Wang C, Wang Z, Li L, Li L, Piao H, Song Y, Yan G. DEK deficiency suppresses mitophagy to protect against house dust mite-induced asthma. Front Immunol 2024; 14:1289774. [PMID: 38274803 PMCID: PMC10808738 DOI: 10.3389/fimmu.2023.1289774] [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: 09/06/2023] [Accepted: 12/18/2023] [Indexed: 01/27/2024] Open
Abstract
DEK protein is highly expressed in asthma. However, the mechanism of DEK on mitophagy in asthma has not been fully understood. This study aims to investigate the role and mechanism of DEK in asthmatic airway inflammation and in regulating PINK1-Parkin-mediated mitophagy, NLRP3 inflammasome activation, and apoptosis. PINK1-Parkin mitophagy, NLRP3 inflammasome, and apoptosis were examined after gene silencing or treatment with specific inhibitors (MitoTEMPO, MCC950, and Ac-DEVD-CHO) in house dust mite (HDM) or recombinant DEK (rmDEK)-induced WT and DEK-/- asthmatic mice and BEAS-2B cells. The regulatory role of DEK on ATAD3A was detected using ChIP-sequence and co-immunoprecipitation. rmDEK promoted eosinophil recruitment, and co-localization of TOM20 and LC3B, MFN1 and mitochondria, LC3B and VDAC, and ROS generation, reduced protein level of MnSOD in HDM induced-asthmatic mice. Moreover, rmDEK also increased DRP1 expression, PINK1-Parkin-mediated mitophagy, NLRP3 inflammasome activation, and apoptosis. These effects were partially reversed in DEK-/- mice. In BEAS-2B cells, siDEK diminished the Parkin, LC3B, and DRP1 translocation to mitochondria, mtROS, TOM20, and mtDNA. ChIP-sequence analysis showed that DEK was enriched on the ATAD3A promoter and could positively regulate ATAD3A expression. Additionally, ATAD3A was highly expressed in HDM-induced asthma models and interacted with DRP1, and siATAD3A could down-regulate DRP1 and mtDNA-mediated mitochondrial oxidative damage. Conclusively, DEK deficiency alleviates airway inflammation in asthma by down-regulating PINK1-Parkin mitophagy, NLRP3 inflammasome activation, and apoptosis. The mechanism may be through the DEK/ATAD3A/DRP1 signaling axis. Our findings may provide new potential therapeutic targets for asthma treatment.
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Affiliation(s)
- Qiaoyun Bai
- Jilin Key Laboratory for Immune and Targeting Research on Common Allergic Diseases, Yanbian University, Yanji, China
- Department of Anatomy, Histology and Embryology, Yanbian University Medical College, Yanji, China
| | - Ruobai Liu
- Jilin Key Laboratory for Immune and Targeting Research on Common Allergic Diseases, Yanbian University, Yanji, China
- Department of Anatomy, Histology and Embryology, Yanbian University Medical College, Yanji, China
| | - Changlin Quan
- Jilin Key Laboratory for Immune and Targeting Research on Common Allergic Diseases, Yanbian University, Yanji, China
- Department of Anatomy, Histology and Embryology, Yanbian University Medical College, Yanji, China
| | - Xue Han
- Jilin Key Laboratory for Immune and Targeting Research on Common Allergic Diseases, Yanbian University, Yanji, China
- Department of Respiratory Medicine, Affiliated Hospital of Yanbian University, Yanji, China
| | - Dandan Wang
- Jilin Key Laboratory for Immune and Targeting Research on Common Allergic Diseases, Yanbian University, Yanji, China
- Department of Anatomy, Histology and Embryology, Yanbian University Medical College, Yanji, China
| | - Chongyang Wang
- Jilin Key Laboratory for Immune and Targeting Research on Common Allergic Diseases, Yanbian University, Yanji, China
- Department of Anatomy, Histology and Embryology, Yanbian University Medical College, Yanji, China
| | - Zhiguang Wang
- Jilin Key Laboratory for Immune and Targeting Research on Common Allergic Diseases, Yanbian University, Yanji, China
- Department of Respiratory Medicine, Affiliated Hospital of Yanbian University, Yanji, China
| | - Li Li
- Jilin Key Laboratory for Immune and Targeting Research on Common Allergic Diseases, Yanbian University, Yanji, China
- Department of Anatomy, Histology and Embryology, Yanbian University Medical College, Yanji, China
| | - Liangchang Li
- Jilin Key Laboratory for Immune and Targeting Research on Common Allergic Diseases, Yanbian University, Yanji, China
- Department of Anatomy, Histology and Embryology, Yanbian University Medical College, Yanji, China
| | - Hongmei Piao
- Jilin Key Laboratory for Immune and Targeting Research on Common Allergic Diseases, Yanbian University, Yanji, China
- Department of Respiratory Medicine, Affiliated Hospital of Yanbian University, Yanji, China
| | - Yilan Song
- Jilin Key Laboratory for Immune and Targeting Research on Common Allergic Diseases, Yanbian University, Yanji, China
- Department of Anatomy, Histology and Embryology, Yanbian University Medical College, Yanji, China
| | - Guanghai Yan
- Jilin Key Laboratory for Immune and Targeting Research on Common Allergic Diseases, Yanbian University, Yanji, China
- Department of Anatomy, Histology and Embryology, Yanbian University Medical College, Yanji, China
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Wang X, Zhou X, Zhang L, Zhang X, Yang C, Piao Y, Zhao J, Jin L, Jin G, An R, Ren X. Crowberry inhibits cell proliferation and migration through a molecular mechanism that includes inhibition of DEK and Akt signaling in cholangiocarcinoma. Chin Med 2022; 17:69. [PMID: 35698073 PMCID: PMC9190153 DOI: 10.1186/s13020-022-00623-6] [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: 01/21/2022] [Accepted: 05/08/2022] [Indexed: 11/17/2022] Open
Abstract
Background Cholangiocarcinoma (CCA) is a rare biliary adenocarcinoma related to poor clinical prognosis. Crowberry is an herbal medicine used to control inflammatory diseases and reestablish antioxidant enzyme activity. Although crowberry shows significant therapeutic efficacy in various tumors and diseases, its anticancer effects and specific molecular mechanisms in CCA are poorly understood. Aim of the study This study was conducted to characterize crowberry effects on CCA cells behavior. Materials and methods The chemical profiles of crowberry extract was qualitatively analyzed by high-performance liquid chromatography (HPLC) and HPLC–tandem mass spectrometry. MTT, colony formation and EdU assays were performed to measure cell proliferation. The effect of crowberry treatment on CCA cell migration was assessed by wound healing and migration assays. Moreover, Hoechst staining assay and flow cytometry were performed to assess the cell apoptosis rate. Western blotting was used to assess the protein expression levels of key factors associated with apoptosis, the Akt signaling pathway, and the epithelial-mesenchymal transition. A xenograft model was established and immunohistochemical and H&E staining was performed to assess crowberry antitumor effects in vivo. Results Crowberry clearly inhibited CCA cells proliferation and migration in a dose-dependent manner and induced apoptosis in vitro. Crowberry inactivated the PI3K/Akt signaling pathway by regulating DEK in vitro and significantly inhibited tumor growth by downregulating the DEK expression in xenograft models. Conclusion Crowberry inhibits CCA cells proliferation and migration through a molecular mechanism that includes inhibition of DEK and Akt signaling pathway inhibition in vitro and in vivo. Graphical Abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s13020-022-00623-6. Crowberry alterd expression levels of key mediators in PI3K/Akt signaling pathway. Crowberry alterd expression levels of key mediators in PI3K/Akt signaling pathway. Crowberry suppressed the expression of the proto-oncogene DEK in vivo and in vitro. Crowberry inhibited CCA progression and migration through a molecular mechanism that includes inhibition of DEK and the Akt signaling pathway in vivo and in vitro.
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Affiliation(s)
- Xue Wang
- Department of Pathology and Cancer Research Center, Yanbian University, Jilin Yanbian, 133002, China.,Key Laboratory of Pathobiology, Yanbian University, State Ethnic Affairs Commission, Yanji, China
| | - Xuebing Zhou
- Department of Pathology and Cancer Research Center, Yanbian University, Jilin Yanbian, 133002, China.,Key Laboratory of Pathobiology, Yanbian University, State Ethnic Affairs Commission, Yanji, China
| | - Ludan Zhang
- Key Laboratory of Natural Medicines of the Changbai Mountain (Yanbian University), Ministry of Education, Jilin Yanbian, 133002, China
| | - Xin Zhang
- Department of Pathology and Cancer Research Center, Yanbian University, Jilin Yanbian, 133002, China.,Key Laboratory of Pathobiology, Yanbian University, State Ethnic Affairs Commission, Yanji, China
| | - Chunyu Yang
- Department of Pathology and Cancer Research Center, Yanbian University, Jilin Yanbian, 133002, China.,Key Laboratory of Pathobiology, Yanbian University, State Ethnic Affairs Commission, Yanji, China
| | - Yingshi Piao
- Department of Pathology and Cancer Research Center, Yanbian University, Jilin Yanbian, 133002, China.,Key Laboratory of Pathobiology, Yanbian University, State Ethnic Affairs Commission, Yanji, China
| | - Jinhua Zhao
- Key Laboratory of Natural Medicines of the Changbai Mountain (Yanbian University), Ministry of Education, Jilin Yanbian, 133002, China
| | - Lili Jin
- Key Laboratory of Natural Medicines of the Changbai Mountain (Yanbian University), Ministry of Education, Jilin Yanbian, 133002, China
| | - Guihua Jin
- Department of Immunology and Pathogenic Biology, Yanbian University, Yanji, 133002, China.
| | - Renbo An
- Key Laboratory of Natural Medicines of the Changbai Mountain (Yanbian University), Ministry of Education, Jilin Yanbian, 133002, China.
| | - Xiangshan Ren
- Department of Pathology and Cancer Research Center, Yanbian University, Jilin Yanbian, 133002, China. .,Key Laboratory of Pathobiology, Yanbian University, State Ethnic Affairs Commission, Yanji, China. .,Key Laboratory of Natural Medicines of the Changbai Mountain (Yanbian University), Ministry of Education, Jilin Yanbian, 133002, China.
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Yang YS, Jia XZ, Lu QY, Cai SL, Huang XT, Yang SH, Wood C, Wang YH, Zhou JJ, Chen YD, Yang JS, Yang WJ. Exosomal DEK removes chemoradiotherapy resistance by triggering quiescence exit of breast cancer stem cells. Oncogene 2022; 41:2624-2637. [PMID: 35351996 DOI: 10.1038/s41388-022-02278-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 03/11/2022] [Indexed: 02/07/2023]
Abstract
Tumor therapeutics often target the primary tumor bulk but fail to eradicate therapy-resistant cancer stem cells (CSCs) in quiescent state. These can then become activated to initiate recurrence and/or metastasis beyond therapy. Here, we identified and isolated chemoradiotherapy-resistant CSCs in quiescent state with high capacity of tumor-initiation and tumorsphere formation from three types of breast tumors in mice. Experiments of knockdown and rescue revealed DEK, a nuclear protein, as essential for CSC activation. Exogenous DEK was then used to trigger quiescence exit of CSCs. ChIP-seq and ATAC-seq showed that DEK directly binds to chromatin, facilitating its genome-wide accessibility. The resulting epigenetic events upregulate the expression of cellular activation-related genes including MYC targets, whereas cellular quiescence-related genes including the p53 signaling pathway are silenced. However, twinned with DEK-induced activation, formerly resistant CSCs were then destroyed by chemotherapy in vitro. In mice, traditional chemoradiotherapy concurrent with the injection of DEK-containing exosomes resulted in eradication of primary tumors together with formerly resistant CSCs without recurrence or metastasis. Our findings advance knowledge of the mechanism of quiescent CSC activation and may provide novel clinical opportunities for removal of quiescence-linked therapy resistance.
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Affiliation(s)
- Yao-Shun Yang
- MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Xi-Zheng Jia
- MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Qian-Yun Lu
- MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Sun-Li Cai
- MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Xue-Ting Huang
- MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Shu-Hua Yang
- MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Chris Wood
- MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Yue-Hong Wang
- Department of Respiratory Medicine, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Jiao-Jiao Zhou
- Department of Surgical Oncology, The Second Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Yi-Ding Chen
- Department of Surgical Oncology, The Second Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Jin-Shu Yang
- MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Wei-Jun Yang
- MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China.
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Zhang H, Yan M, Deng R, Song F, Jiang M. The silencing of DEK reduced disease resistance against Botrytis cinerea and Pseudomonas syringae pv. tomato DC3000 based on virus-induced gene silencing analysis in tomato. Gene 2020; 727:144245. [PMID: 31715302 DOI: 10.1016/j.gene.2019.144245] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2019] [Revised: 10/29/2019] [Accepted: 10/29/2019] [Indexed: 10/25/2022]
Abstract
DEK involves in the modulation of cell proliferation, differentiation, apoptosis, migration and cell senescence. However, direct genetic evidence proving the functions of DEK in disease resistance against pathogens is still deficient. In the present study, four DEKs were identified in tomato genome and their roles in disease resistance in tomato were analyzed. The expression levels of DEKs were differently induced by Botrytis cinerea, Pseudomonas syringae pv. tomato (Pst) DC3000 and defense-related signaling molecules (such as jasmonic acid, aethylene precursor and salicylic acid). The DEKs' silencing by virus induced gene silencing led to decreased resistance against B. cinerea or Pst DC3000. The underlying mechanisms may be through the upregulation of the accumulation of reactive oxygen species (ROS) and the changed expression levels of defense-related genes by pathogen inoculation. These results indicate that DEKs involve in disease resistance against different pathogens and thus broaden the knowledge of DEK genes' function in tomato.
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Affiliation(s)
- Huijuan Zhang
- Collegue of Life Science, Taizhou University, Taizhou, China
| | - Mengjiao Yan
- Collegue of Life Science, Taizhou University, Taizhou, China
| | - Rong Deng
- Collegue of Life Science, Taizhou University, Taizhou, China
| | - Fengming Song
- National Key Laboratory for Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou, China
| | - Ming Jiang
- Collegue of Life Science, Taizhou University, Taizhou, China.
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Hacker KE, Bolland DE, Tan L, Saha AK, Niknafs YS, Markovitz DM, McLean K. The DEK Oncoprotein Functions in Ovarian Cancer Growth and Survival. Neoplasia 2018; 20:1209-1218. [PMID: 30412857 PMCID: PMC6226625 DOI: 10.1016/j.neo.2018.10.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Revised: 10/11/2018] [Accepted: 10/16/2018] [Indexed: 12/13/2022]
Abstract
DNA damage repair alterations play a critical role in ovarian cancer tumorigenesis. Mechanistic drivers of the DNA damage response consequently present opportunities for therapeutic targeting. The chromatin-binding DEK oncoprotein functions in DNA double-strand break repair. We therefore sought to determine the role of DEK in epithelial ovarian cancer. DEK is overexpressed in both primary epithelial ovarian cancers and ovarian cancer cell lines. To assess the impact of DEK expression levels on cell growth, small interfering RNA and short hairpin RNA approaches were utilized. Decreasing DEK expression in ovarian cancer cell lines slows cell growth and induces apoptosis and DNA damage. The biologic effects of DEK depletion are enhanced with concurrent chemotherapy treatment. The in vitro effects of DEK knockdown are reproduced in vivo, as DEK depletion in a mouse xenograft model results in slower tumor growth and smaller tumors compared to tumors expressing DEK. These findings provide a compelling rationale to target the DEK oncoprotein and its pathways as a therapeutic strategy for treating epithelial ovarian cancer.
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Affiliation(s)
- Kari E Hacker
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, University of Michigan Medical Center, Ann Arbor, MI 48109
| | - Danielle E Bolland
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, University of Michigan Medical Center, Ann Arbor, MI 48109
| | - Lijun Tan
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, University of Michigan Medical Center, Ann Arbor, MI 48109
| | - Anjan K Saha
- Department of Internal Medicine and Cancer Biology Program, University of Michigan Medical Center, Ann Arbor, MI 48109
| | - Yashar S Niknafs
- Michigan Center for Translational Pathology, University of Michigan Medical Center, Ann Arbor, MI 48109
| | - David M Markovitz
- Department of Internal Medicine and Cancer Biology Program, University of Michigan Medical Center, Ann Arbor, MI 48109
| | - Karen McLean
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, University of Michigan Medical Center, Ann Arbor, MI 48109.
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Yu L, Huang X, Zhang W, Zhao H, Wu G, Lv F, Shi L, Teng Y. Critical role of DEK and its regulation in tumorigenesis and metastasis of hepatocellular carcinoma. Oncotarget 2016; 7:26844-55. [PMID: 27057626 PMCID: PMC5042019 DOI: 10.18632/oncotarget.8565] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Accepted: 03/01/2016] [Indexed: 12/16/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is one of the leading causes of cancer-related mortality globally. Therefore, it is quite essential to identify novel HCC-related molecules for the discovery of new prognostic markers and therapeutic targets. As an oncogene, DEK plays an important role in cell processes and participates in a variety of cellular metabolic functions, and its altered expression is associated with several human malignancies. However, the functional significance of DEK and the involved complex biological events in HCC development and progression are poorly understood. Here, combing the results from clinical specimens and cultured cell lines, we uncover a critical oncogenic role of DEK, which is highly expressed in HCC cells. DEK protein encompasses two isoforms (isoforms 1 and 2) and isoform 1 is the most frequently expressed DEK isoform in HCC cells. DEK depletion by using shRNA inhibited the cell proliferation and migration in vitro and suppressed tumorigenesis and metastasis in mouse models. Consistently, DEK overexpression regardless of which isoform produced the opposite effects. Further studies showed that DEK induced cell proliferation through upregulating cell cycle related CDK signaling, and promoted cell migration and EMT, at least in part, through the repression of β-catenin/E-cadherin axis. Interestingly, isoform 1 induced cell proliferation more efficiently than isoform 2, however, no functional differences existed between these two isoforms in cell migration. Together, our study indicates that DEK expression is required for tumorigenesis and metastasis of HCC, providing molecular insights for DEK-related pathogenesis and a basis for developing new strategies against HCC.
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Affiliation(s)
- Le Yu
- School of Life Sciences, Chongqing University, Chongqing 400044, PR China
| | - Xiaobin Huang
- School of Life Sciences, Chongqing University, Chongqing 400044, PR China
| | - Wenfa Zhang
- School of Life Sciences, Chongqing University, Chongqing 400044, PR China
| | - Huakan Zhao
- School of Life Sciences, Chongqing University, Chongqing 400044, PR China
| | - Gang Wu
- Third Affiliated Hospital, Third Military Medical University, Chongqing 400044, PR China
| | - Fenglin Lv
- School of Life Sciences, Chongqing University, Chongqing 400044, PR China
| | - Lei Shi
- School of Life Sciences, Chongqing University, Chongqing 400044, PR China
| | - Yong Teng
- School of Life Sciences, Chongqing University, Chongqing 400044, PR China
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Magharious M, D'Onofrio PM, Hollander A, Zhu P, Chen J, Koeberle PD. Quantitative iTRAQ analysis of retinal ganglion cell degeneration after optic nerve crush. J Proteome Res 2011; 10:3344-62. [PMID: 21627321 DOI: 10.1021/pr2004055] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Retinal ganglion cells (RGCs) are central nervous system (CNS) neurons that transmit visual information from the retina to the brain. Apoptotic RGC degeneration causes visual impairment that can be modeled by optic nerve crush. Neuronal apoptosis is also a salient feature of CNS trauma, ischemia (stroke), and diseases of the CNS such as Alzheimer's, Parkinson's, multiple sclerosis, and amyotrophic lateral sclerosis. Optic nerve crush induces the apoptotic cell death of ∼ 70% of RGCs within the first 14 days after injury. This model is particularly attractive for studying adult neuron apoptosis because the time-course of RGC death is well established and axon regeneration within the myelinated optic nerve can be concurrently evaluated. Here, we performed a large scale iTRAQ proteomic study to identify and quantify proteins of the rat retina at 1, 3, 4, 7, 14, and 21 days after optic nerve crush. In total, 337 proteins were identified, and 110 were differentially regulated after injury. Of these, 58 proteins were upregulated (>1.3 ×), 46 were downregulated (<0.7 ×), and 6 showed both positive and negative regulation over 21 days, relative to normal retinas. Among the differentially expressed proteins, Thymosin-β4 showed an early upregulation at 3 days, the time-point that immediately precedes the induction of RGC apoptosis after injury. We examined the effect of exogenous Thymosin-β4 administration on RGC death after optic nerve injury. Intraocular injections of Thymosin-β4 significantly increased RGC survival by ∼ 3-fold compared to controls and enhanced axon regeneration after crush, demonstrating therapeutic potential for CNS insults. Overall, our study identified numerous proteins that are differentially regulated at key time-points after optic nerve crush, and how the temporal profiles of their expression parallel RGC death. This data will aid in the future development of novel therapeutics to promote neuronal survival and regeneration in the adult CNS.
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Affiliation(s)
- Mark Magharious
- Graduate Department of Rehabilitation Science, University of Toronto, Canada
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