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Improved Survival and Retinal Function of Aging ZDF Rats in Long-Term, Uncontrolled Diabetes by BGP-15 Treatment

Retinal complications of diabetes often lead to deterioration or even loss of vision. This hastens discovery of pharmacological agents able to counterbalance diabetic retinopathy. BGP-15, an emerging small molecule agent, was formerly proven by our workgroup to be retinoprotective on nonobese diabet...

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Autores principales: Wachal, Zita, Szilágyi, Anna, Takács, Barbara, Szabó, Adrienn Mónika, Priksz, Dániel, Bombicz, Mariann, Szilvássy, Judit, Juhász, Béla, Szilvássy, Zoltán, Varga, Balázs
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8085539/
https://www.ncbi.nlm.nih.gov/pubmed/33935754
http://dx.doi.org/10.3389/fphar.2021.650207
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author Wachal, Zita
Szilágyi, Anna
Takács, Barbara
Szabó, Adrienn Mónika
Priksz, Dániel
Bombicz, Mariann
Szilvássy, Judit
Juhász, Béla
Szilvássy, Zoltán
Varga, Balázs
author_facet Wachal, Zita
Szilágyi, Anna
Takács, Barbara
Szabó, Adrienn Mónika
Priksz, Dániel
Bombicz, Mariann
Szilvássy, Judit
Juhász, Béla
Szilvássy, Zoltán
Varga, Balázs
author_sort Wachal, Zita
collection PubMed
description Retinal complications of diabetes often lead to deterioration or even loss of vision. This hastens discovery of pharmacological agents able to counterbalance diabetic retinopathy. BGP-15, an emerging small molecule agent, was formerly proven by our workgroup to be retinoprotective on nonobese diabetic animals, Goto-Kakizaki rats. In the present study, we aimed to examine its long-term tolerability or incidental side effects on obese-prone Zucker diabetic fatty (ZDF) rats to further increase the rationale for a future human translation. To make terminal visual status comparable with our other investigations, we also carried out electroretinography (ERG) at the end of the experiment. Our study was started on 16-week-old ZDF rats and lasted for 52 weeks, while BGP was administered daily by gavage. During the 12 months of treatment, 100% of BGP-treated animals survived compared to the non-treated ZDF group, where 60% of the animals died, which was a statistically significant difference. Based on ERG results, BGP-15 was able to counterbalance visual deterioration of ZDF rats caused by long-term diabetes. Some moderate but significant changes were seen in OGTT results and some relationship to oxidative stress by the western blot method: BGP-15 was able to increase expression of HSP70 and decrease that of NFkB in eyes of rats. These were in concert with our previous observations of SIRT1 increment and MMP9 decrement in diabetic eyes by BGP. In summary, not only is BGP-15 not harmful in the long run but it is even able to reduce the related mortality and the serious consequences of diabetes. BGP-15 is an excellent candidate for future drug development against diabetic retinopathy.
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spelling pubmed-80855392021-05-01 Improved Survival and Retinal Function of Aging ZDF Rats in Long-Term, Uncontrolled Diabetes by BGP-15 Treatment Wachal, Zita Szilágyi, Anna Takács, Barbara Szabó, Adrienn Mónika Priksz, Dániel Bombicz, Mariann Szilvássy, Judit Juhász, Béla Szilvássy, Zoltán Varga, Balázs Front Pharmacol Pharmacology Retinal complications of diabetes often lead to deterioration or even loss of vision. This hastens discovery of pharmacological agents able to counterbalance diabetic retinopathy. BGP-15, an emerging small molecule agent, was formerly proven by our workgroup to be retinoprotective on nonobese diabetic animals, Goto-Kakizaki rats. In the present study, we aimed to examine its long-term tolerability or incidental side effects on obese-prone Zucker diabetic fatty (ZDF) rats to further increase the rationale for a future human translation. To make terminal visual status comparable with our other investigations, we also carried out electroretinography (ERG) at the end of the experiment. Our study was started on 16-week-old ZDF rats and lasted for 52 weeks, while BGP was administered daily by gavage. During the 12 months of treatment, 100% of BGP-treated animals survived compared to the non-treated ZDF group, where 60% of the animals died, which was a statistically significant difference. Based on ERG results, BGP-15 was able to counterbalance visual deterioration of ZDF rats caused by long-term diabetes. Some moderate but significant changes were seen in OGTT results and some relationship to oxidative stress by the western blot method: BGP-15 was able to increase expression of HSP70 and decrease that of NFkB in eyes of rats. These were in concert with our previous observations of SIRT1 increment and MMP9 decrement in diabetic eyes by BGP. In summary, not only is BGP-15 not harmful in the long run but it is even able to reduce the related mortality and the serious consequences of diabetes. BGP-15 is an excellent candidate for future drug development against diabetic retinopathy. Frontiers Media S.A. 2021-04-16 /pmc/articles/PMC8085539/ /pubmed/33935754 http://dx.doi.org/10.3389/fphar.2021.650207 Text en Copyright © 2021 Wachal, Szilágyi, Takács, Szabó, Priksz, Bombicz, Szilvássy, Juhász, Szilvássy and Varga. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Pharmacology
Wachal, Zita
Szilágyi, Anna
Takács, Barbara
Szabó, Adrienn Mónika
Priksz, Dániel
Bombicz, Mariann
Szilvássy, Judit
Juhász, Béla
Szilvássy, Zoltán
Varga, Balázs
Improved Survival and Retinal Function of Aging ZDF Rats in Long-Term, Uncontrolled Diabetes by BGP-15 Treatment
title Improved Survival and Retinal Function of Aging ZDF Rats in Long-Term, Uncontrolled Diabetes by BGP-15 Treatment
title_full Improved Survival and Retinal Function of Aging ZDF Rats in Long-Term, Uncontrolled Diabetes by BGP-15 Treatment
title_fullStr Improved Survival and Retinal Function of Aging ZDF Rats in Long-Term, Uncontrolled Diabetes by BGP-15 Treatment
title_full_unstemmed Improved Survival and Retinal Function of Aging ZDF Rats in Long-Term, Uncontrolled Diabetes by BGP-15 Treatment
title_short Improved Survival and Retinal Function of Aging ZDF Rats in Long-Term, Uncontrolled Diabetes by BGP-15 Treatment
title_sort improved survival and retinal function of aging zdf rats in long-term, uncontrolled diabetes by bgp-15 treatment
topic Pharmacology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8085539/
https://www.ncbi.nlm.nih.gov/pubmed/33935754
http://dx.doi.org/10.3389/fphar.2021.650207
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