Cited by 32Retinal Development and DisordersRetinal Diseases and TreatmentsNeurogenesis and neuroplasticity mechanisms

TNFα activates MAPK and Jak-Stat pathways to promote mouse Müller cell proliferation.

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Niu, Liangliang, Fang, Yuan, Yao, Xiaoqian, Zhang, Yi, Wu, Jihong, Chen, Dong Feng, Sun, Xinghuai·2021·Experimental Eye Research

Abstract

Mouse Müller cells, considered as dormant retinal progenitors, often respond to retinal injury by undergoing reactive gliosis rather than displaying neural regenerative responses. Tumor necrosis factor alpha (TNFα) is a key cytokines induced after injury and implicated in mediating inflammatory and neural regenerative responses in zebrafish. To investigate the involvement of TNFα in mouse retinal injury, adult C57BL/6J mice were subjected to light damage for 14 consecutive days. TNFα was elevated in the retina of mice exposed to light damage, which induced Müller cell proliferation in vitro. Affymetrix microarray showed that, in Müller cells, TNFα induces up-regulation of inflammatory and proliferation-related genes, including NFKB2, leukemia inhibitory factor, interleukin-6, janus kinase (Jak) 1, Jak2, signal transducer and activator of transcription (Stat) 1, Stat2, mitogen-activated protein kinase (MAPK) 7, and MAP4K4 but down-regulation of neuroprogenitor genes, including Sox9, Ascl1, Wnt2 and Hes1. Blocking the Jak/Stat and MAPK pathways attenuated TNFα-induced Müller cell proliferation. These results suggest that TNFα may drive the proliferation and inflammatory response, rather than the neural regenerative potential, of mouse Müller cells.

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  1. Mack, A.F., Germer, A., Janke, C., Reichenbach, A., 1998. Müller (glial) cells in the teleost retina: consequences of continuous growth. Glia 22 (3), 306-313.
  2. cycloaddition. J. Am. Chem. Soc. 125 (11), 3192-3193.
  3. Wohl, S.G., Reh, T.A., 2016. miR-124-9-9* potentiates Ascl1-induced reprogramming of cultured Müller glia. Glia 64 (5), 743-762.

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Authors
Niu, L., Fang, Y., Yao, X., Zhang, Y., Wu, J., Chen, D. F., & Sun, X.
Affiliations
  • Shanghai Medical College of Fudan University (CN)
  • Massachusetts Eye and Ear Infirmary (US)
Corresponding author
  • Chen, Dong Feng
  • Sun, Xinghuai
Venue
Experimental Eye Research
Publisher
Elsevier BV
Published
2021-01
Volume
202
Pages
108353
ISSN
0014-4835 (ISSN-L)
OpenAlex
W3102008695
Cited by
32
References
40
Citations by year
2026: 4 · 2025: 4 · 2024: 13 · 2023: 6 · 2022: 5
FWCI
0.89
Type
journal article
Language
en
Open access
Locations
  • Experimental Eye Research (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
Funders
  • International Science and Technology Cooperation Programme (2015DFA31340)
  • National Natural Science Foundation of China (NSFC81100667, 81020108017, 81430007)
  • National Health and Family Planning Commission of the People's Republic of China (201302015)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Retinal Development and Disorders
  • Health Sciences › Medicine › Ophthalmology › Retinal Diseases and Treatments
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
Keywords
TNF-α, Müller cells, retinal damage, light-induced retinal damage, reactive gliosis, cell proliferation, MAPK signaling, JAK/STAT signaling, neuroinflammation, retinal regeneration, SOX9, ASCL1, Wnt2, Hes1, MAP4K4, NFKB2, interleukin-6, leukemia inhibitory factor
MeSH terms
Animals, Enzyme-Linked Immunosorbent Assay, Gene Expression Regulation, Mice, Inbred C57BL, RNA, Tumor Necrosis Factor-alpha, Blotting, Western, Signal Transduction, Mitogen-Activated Protein Kinases, Models, Animal, Cell Proliferation, Mice, Ependymoglial Cells

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