ResearchIn-Press PreviewNeuroscienceOphthalmology
Open Access |
10.1172/jci.insight.202223
1Department of Ophthalmology, Central South University, Changsha, China
2Division of Rheumatology, Harvard Medical School, Boston, United States of America
3Departments of Neurosurgery and Ophthalmology, Boston Children’s Hospital and Harvard Medical School, Boston, United States of America
4Department of Ophthalmology, Capital Medical University, Beijing, China
Find articles by Jiang, Q. in: PubMed | Google Scholar
1Department of Ophthalmology, Central South University, Changsha, China
2Division of Rheumatology, Harvard Medical School, Boston, United States of America
3Departments of Neurosurgery and Ophthalmology, Boston Children’s Hospital and Harvard Medical School, Boston, United States of America
4Department of Ophthalmology, Capital Medical University, Beijing, China
Find articles by Wang, C. in: PubMed | Google Scholar
1Department of Ophthalmology, Central South University, Changsha, China
2Division of Rheumatology, Harvard Medical School, Boston, United States of America
3Departments of Neurosurgery and Ophthalmology, Boston Children’s Hospital and Harvard Medical School, Boston, United States of America
4Department of Ophthalmology, Capital Medical University, Beijing, China
Find articles by Ren, Y. in: PubMed | Google Scholar
1Department of Ophthalmology, Central South University, Changsha, China
2Division of Rheumatology, Harvard Medical School, Boston, United States of America
3Departments of Neurosurgery and Ophthalmology, Boston Children’s Hospital and Harvard Medical School, Boston, United States of America
4Department of Ophthalmology, Capital Medical University, Beijing, China
Find articles by Duan, P. in: PubMed | Google Scholar
1Department of Ophthalmology, Central South University, Changsha, China
2Division of Rheumatology, Harvard Medical School, Boston, United States of America
3Departments of Neurosurgery and Ophthalmology, Boston Children’s Hospital and Harvard Medical School, Boston, United States of America
4Department of Ophthalmology, Capital Medical University, Beijing, China
Find articles by Tian, K. in: PubMed | Google Scholar
1Department of Ophthalmology, Central South University, Changsha, China
2Division of Rheumatology, Harvard Medical School, Boston, United States of America
3Departments of Neurosurgery and Ophthalmology, Boston Children’s Hospital and Harvard Medical School, Boston, United States of America
4Department of Ophthalmology, Capital Medical University, Beijing, China
Find articles by Duan, X. in: PubMed | Google Scholar
1Department of Ophthalmology, Central South University, Changsha, China
2Division of Rheumatology, Harvard Medical School, Boston, United States of America
3Departments of Neurosurgery and Ophthalmology, Boston Children’s Hospital and Harvard Medical School, Boston, United States of America
4Department of Ophthalmology, Capital Medical University, Beijing, China
Find articles by Cai, B. in: PubMed | Google Scholar
1Department of Ophthalmology, Central South University, Changsha, China
2Division of Rheumatology, Harvard Medical School, Boston, United States of America
3Departments of Neurosurgery and Ophthalmology, Boston Children’s Hospital and Harvard Medical School, Boston, United States of America
4Department of Ophthalmology, Capital Medical University, Beijing, China
Find articles by Xu, C. in: PubMed | Google Scholar
1Department of Ophthalmology, Central South University, Changsha, China
2Division of Rheumatology, Harvard Medical School, Boston, United States of America
3Departments of Neurosurgery and Ophthalmology, Boston Children’s Hospital and Harvard Medical School, Boston, United States of America
4Department of Ophthalmology, Capital Medical University, Beijing, China
Find articles by Liu, K. in: PubMed | Google Scholar
1Department of Ophthalmology, Central South University, Changsha, China
2Division of Rheumatology, Harvard Medical School, Boston, United States of America
3Departments of Neurosurgery and Ophthalmology, Boston Children’s Hospital and Harvard Medical School, Boston, United States of America
4Department of Ophthalmology, Capital Medical University, Beijing, China
Find articles by Li, J. in: PubMed | Google Scholar
1Department of Ophthalmology, Central South University, Changsha, China
2Division of Rheumatology, Harvard Medical School, Boston, United States of America
3Departments of Neurosurgery and Ophthalmology, Boston Children’s Hospital and Harvard Medical School, Boston, United States of America
4Department of Ophthalmology, Capital Medical University, Beijing, China
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Benowitz, L.
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1Department of Ophthalmology, Central South University, Changsha, China
2Division of Rheumatology, Harvard Medical School, Boston, United States of America
3Departments of Neurosurgery and Ophthalmology, Boston Children’s Hospital and Harvard Medical School, Boston, United States of America
4Department of Ophthalmology, Capital Medical University, Beijing, China
Find articles by Wang, N. in: PubMed | Google Scholar
1Department of Ophthalmology, Central South University, Changsha, China
2Division of Rheumatology, Harvard Medical School, Boston, United States of America
3Departments of Neurosurgery and Ophthalmology, Boston Children’s Hospital and Harvard Medical School, Boston, United States of America
4Department of Ophthalmology, Capital Medical University, Beijing, China
Find articles by Jiang, B. in: PubMed | Google Scholar
1Department of Ophthalmology, Central South University, Changsha, China
2Division of Rheumatology, Harvard Medical School, Boston, United States of America
3Departments of Neurosurgery and Ophthalmology, Boston Children’s Hospital and Harvard Medical School, Boston, United States of America
4Department of Ophthalmology, Capital Medical University, Beijing, China
Find articles by Xie, L. in: PubMed | Google Scholar
Published September 1, 2026 - More info
Identifying factors that govern retinal ganglion cells’ (RGCs) ability to extend axons is an important step in developing therapies to achieve recovery after optic nerve injury. Here we report that the intracellular domain of the leukemia inhibitory factor receptor (LIFR/CD118) is essential for mature RGCs’ ability to regenerate injured axons independent of the cognate ligand (LIF) and other therapies. Overexpression of LIFR in adult RGCs induces neurite outgrowth in cultured RGCs and axon regeneration in vivo while strongly amplifying RGCs’ response to LIF itself and to unrelated growth factors. Conversely, downregulation of LIFR strongly suppresses the pro-regenerative effects of Pten deletion and other potent stimuli. LIFR modulation alters the constitutive activity of the MAP kinase pathway, in contrast to LIF itself, which primarily activates pSTAT3. The extracellular-domain-truncated LIFR construct retains substantial pro-regenerative activity, whereas mutation of intracellular signaling motifs reduces the full regenerative effect of LIFR. Together, these findings identify LIFR as a key cell-autonomous regulator of optic nerve regeneration in mature RGCs.