Functional connexin35 increased in the myopic chicken retina

Seema Banerjee, Qin Wang, George Tang, Chung Him So, Sze Wan Shan, King Kit Li, Chi-Wai Do, Feng Pan

Research output: Journal article publicationJournal articleAcademic researchpeer-review

2 Citations (Scopus)


Our previous research showed that increased phosphorylation of connexin (Cx)36 indicated extended coupling of AII amacrine cells (ACs) in the rod-dominant mouse myopic retina. This research will determine whether phosphorylation at serine 276 of Cx35-containing gap junctions increased in the myopic chicken, whose retina is cone-dominant. Refractive errors and ocular biometric dimensions of 7-days-old chickens were determined following 12 h and 7 days induction of myopia by a -10D lens. The expression pattern and size of Cx35-positive plaques were examined in the early (12 h) and compensated stages (7 days) of lens-induced myopia (LIM). At the same time, phosphorylation at serine 276 (functional assay) of Cx35 in strata 5 (S5) of the inner plexiform layer was investigated. The axial length of the 7 days LIM eyes was significantly longer than that of non-LIM controls (P < 0.05). Anti-phospho-Ser276 (Ser276-P)-labeled plaques were significantly increased in LIM retinas at both 12 h and 7 days. The density of Ser276-P of Cx35 was observed to increase after 12 h LIM. In the meanwhile, the areas of existing Cx35 plaques did not change. As there was more phosphorylation of connexin35 at Ser276 at both the early and late stages (12 h) and 7 days of LIM chicken retinal activity, the coupling with ACs could be increased in myopia development of the cone-dominated chicken retina.

Original languageEnglish
Article numberE008
JournalVisual Neuroscience
Publication statusPublished - 14 May 2021


  • amacrine cell
  • gap junction
  • myopia
  • retina

ASJC Scopus subject areas

  • Physiology
  • Sensory Systems


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