Molecular Mechanisms and Pathophysiology of Diabetic Retinopathy

A special issue of Cells (ISSN 2073-4409). This special issue belongs to the section "Cellular Pathology".

Deadline for manuscript submissions: 15 April 2026 | Viewed by 1463

Special Issue Editors


E-Mail Website
Guest Editor
Department of Cellular and Molecular Physiology, Penn State Hershey Medical Center and Penn State College of Medicine, Hershey, PA 17033, USA
Interests: diabetic retinopathy; pathophysiology of diabetic complications; diabetic nephropathy; chronic kidney disease; inflammation; oxidative stress

E-Mail Website
Guest Editor
Department of Ophthalmology, Penn State Hershey Medical Center and Penn State College of Medicine, Hershey, PA 17033, USA
Interests: retinopathy; glaucoma; retinal ganglion cell physiology; retinal pigment cell biology and pathophysiology

E-Mail Website
Guest Editor
Department of Cellular and Molecular Physiology, Penn State Hershey Medical Center and Penn State College of Medicine, Hershey, PA 17033, USA
Interests: age-related macular degeneration; epithelial-to-mesenchymal transition; retinal pigment epithelial cell in disease pathophysiology; oxidative stress; inflammation

Special Issue Information

Dear Colleagues,

Diabetic retinopathy (DR) remains the leading cause of blindness, yet little is known about the molecular processes that lead to retinal abnormalities and vision impairments brought on by diabetes. Elucidating the mechanisms underlying the pathophysiology and treatments of DR remains a major focus of research, with the ultimate goal of developing intervention strategies that attenuate microvascular complications and structural and functional degeneration of the retina. As effective therapies for DR are currently lacking, input from a wide array of fields, including physiology, ophthalmology, and endocrinology, appears to be the need of the hour.

Studies aimed at treating or curing DR are notable for the ways in which basic and translational research, as well as clinical practice, inform one another and produce novel therapeutic modalities. Recent methodological innovations in single-cell transcriptomics, proteomics, and drug target discovery have generated significant advancements. This Special Issue invites manuscript submissions, namely original research articles and review papers, to provide a collection of the current knowledge and advances in understanding the cellular and molecular pathophysiology of DR. Of specific interest are papers focused on the discovery and characterization of novel drug targets, cell signaling pathways, and molecular mechanisms regulating structural and functional degeneration of the retina and vascular complications in DR.

Dr. Siddharth Sunilkumar
Dr. Stephanie L. Grillo
Dr. Sandeep M. Subrahmanian
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Cells is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • diabetic retinopathy
  • retina
  • retinal neurodegeneration
  • diabetic macular edema
  • pathophysiology of diabetic retinopathy
  • proliferative and non-proliferative diabetic retinopathy
  • molecular mediators of diabetic retinopathy
  • cell-based therapies for diabetic retinopathy

Benefits of Publishing in a Special Issue

  • Ease of navigation: Grouping papers by topic helps scholars navigate broad scope journals more efficiently.
  • Greater discoverability: Special Issues support the reach and impact of scientific research. Articles in Special Issues are more discoverable and cited more frequently.
  • Expansion of research network: Special Issues facilitate connections among authors, fostering scientific collaborations.
  • External promotion: Articles in Special Issues are often promoted through the journal's social media, increasing their visibility.
  • Reprint: MDPI Books provides the opportunity to republish successful Special Issues in book format, both online and in print.

Further information on MDPI's Special Issue policies can be found here.

Published Papers (1 paper)

Order results
Result details
Select all
Export citation of selected articles as:

Review

25 pages, 1439 KB  
Review
The Form and Function of Retinal Ganglion Cells in Diabetes
by Alistair J. Barber
Cells 2025, 14(18), 1455; https://doi.org/10.3390/cells14181455 - 17 Sep 2025
Viewed by 815
Abstract
This review examines how diabetes affects the ganglion cells of the retina, including the axons that make up the optic nerve. Links between established changes in the morphology of retinal ganglion cells (RGCs) and vision loss, as well as other functions, such as [...] Read more.
This review examines how diabetes affects the ganglion cells of the retina, including the axons that make up the optic nerve. Links between established changes in the morphology of retinal ganglion cells (RGCs) and vision loss, as well as other functions, such as the pupillary light reflex, are considered. RGC morphology and function are significantly altered in both animal models and humans with diabetes. Diabetes affects all parts of the RGC, including the dendrites, the cell body, the axons making up the nerve fiber layer, and the optic nerve. Subtypes of RGCs appear to be affected differently by diabetes, and the morphology and electrophysiological output are more significantly affected in ON-RGCs than in OFF cells, which may explain part of the mechanism underlying the widely documented diabetes-induced reduction in contrast sensitivity. Furthermore, the morphology of the specialized light-sensitive melanopsin-containing RGCs also appears to be affected by diabetes, which may explain deficits in circadian rhythm and the pupillary light reflex. Potential therapeutic approaches aimed at protecting RGCs in diabetes are also discussed. Overall, strong evidence supports the conclusion that diabetes impacts the form and function of RGCs and their axons within the optic nerve, resulting in deficient regulation of circadian rhythms and the pupillary light reflex, in addition to vision. Full article
(This article belongs to the Special Issue Molecular Mechanisms and Pathophysiology of Diabetic Retinopathy)
Show Figures

Figure 1

Back to TopTop