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Yi YM, Cai L, Shao Y, et al. The protective role of tacrine and donepezil in the retina of acetylcholinesterase knockout mice. Int J Ophthalmol. 2015;8(5):884-90doi: 10.3980/j.issn.2222-3959.2015.05.06.
Yi, Y. M., Cai, L., Shao, Y., Xu, M., & Yi, J. L. (2015). The protective role of tacrine and donepezil in the retina of acetylcholinesterase knockout mice. International journal of ophthalmology, 8(5), 884-90. https://doi.org/10.3980/j.issn.2222-3959.2015.05.06
Yi, Yun-Min, et al. "The protective role of tacrine and donepezil in the retina of acetylcholinesterase knockout mice." International journal of ophthalmology vol. 8,5 (2015): 884-90. doi: https://doi.org/10.3980/j.issn.2222-3959.2015.05.06
Yi YM, Cai L, Shao Y, Xu M, Yi JL. The protective role of tacrine and donepezil in the retina of acetylcholinesterase knockout mice. Int J Ophthalmol. 2015 Oct 18;8(5):884-90. doi: 10.3980/j.issn.2222-3959.2015.05.06. eCollection 2015. PMID: 26558196; PMCID: PMC4631000.
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Int J Ophthalmol. 2015 Oct 18;8(5):884-90. doi: 10.3980/j.issn.2222-3959.2015.05.06. eCollection 2015.

The protective role of tacrine and donepezil in the retina of acetylcholinesterase knockout mice.

International journal of ophthalmology

Yun-Min Yi, Li Cai, Yi Shao, Man Xu, Jing-Lin Yi

Affiliations

  1. Affiliated Eye Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, China.
  2. Jiangxi Research Institute of Ophthalmology and Visual Sciences, Nanchang 330006, Jiangxi Province, China.
  3. Department of Ophthalmology, the First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, China.

PMID: 26558196 PMCID: PMC4631000 DOI: 10.3980/j.issn.2222-3959.2015.05.06

Abstract

AIM: To determine the effect of different concentrations of the acetylcholinesterase (AChE) inhibitors tacrine and donepezil on retinal protection in AChE(+/-) mice (AChE knockout mice) of various ages.

METHODS: Cultured ARPE-19 cells were treated with hydrogen peroxide (H2O2) at concentrations of 0, 250, 500, 1000 and 2000 µmol/L and protein levels were measured using Western blot. Intraperitoneal injections of tacrine and donepezil (0.1 mg/mL, 0.2 mg/mL and 0.4 mg/mL) were respectively given to AChE(+/-) mice aged 2mo and 4mo and wild-type S129 mice for 7d; phosphate buffered saline (PBS) was administered to the control group. The mice were sacrificed after 30d by in vitro cardiac perfusion and retinal samples were taken. AChE-deficient mice were identified by polymerase chain reaction (PCR) analysis using specific genotyping protocols obtained from the Jackson Laboratory website. H&E staining, immunofluorescence and Western blot were performed to observe AChE protein expression changes in the retinal pigment epithelial (RPE) cell layer.

RESULTS: Different concentrations of H2O2 induced AChE expression during RPE cell apoptosis. AChE(+/-) mice retina were thinner than those in wild-type mice (P<0.05); the retinal structure was still intact at 2mo but became thinner with increasing age (P<0.05); furthermore, AChE(+/-) mice developed more slowly than wild-type mice (P<0.05). Increased concentrations of tacrine and donepezil did not significantly improve the protection of the retina function and morphology (P>0.05).

CONCLUSION: In vivo, tacrine and donepezil can inhibit the expression of AChE; the decrease of AChE expression in the retina is beneficial for the development of the retina.

Keywords: AChE+/− animal models; acetylcholinesterase; acetylcholinesterase inhibitors; apoptosis; retinal pigment epithelium

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