Journal
BIOMEDICINE & PHARMACOTHERAPY
Volume 149, Issue -, Pages -Publisher
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
DOI: 10.1016/j.biopha.2022.112911
Keywords
Retina degeneration; Calcium dyshomeostasis; Oxidative stress; Neuroinflammation; Drug repositioning; Drug combinations; Neuroprotection
Funding
- EU [766124]
- Fundacion Teofilo Hernando
- Spanish Ministry of Science and Innovation [FEDER-PID2019106230RB-I00]
- Generalitat Valenciana [IDIFEDER/2017/064, PROMETEO/2021/024]
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This article discusses the multi-target therapy approach for treating retina degenerative diseases, with a focus on common signaling pathways leading to cell death. It suggests the use of combined medicines acting on complementary pathogenic mechanisms and highlights the potential efficacy of this approach compared to single-drug treatments.
This review focuses on retina degeneration occurring during glaucoma, age-related macular degeneration (AMD), diabetic retinopathy (DR), and retinitis pigmentosa (RP), and on the potential therapeutic use of triads of repositioned medicines, addressed to distinct but complementary targets, to prevent, delay or stop retina cell death. Although myriad pathogenic mechanisms have been implicated in these disorders, common signaling pathways leading to apoptotic cell death to all of them, and to all neurodegenerative diseases are (i) calcium dyshomeostasis/excitotoxicity; (ii) oxidative stress/mitochondrial dysfunction, and (iii) neuroinflammation/ P2X7 receptor activation. From a therapeutic point of view, it is relevant to consider the multitarget approach based on the use of combined medicines acting on complementary pathogenic mechanisms that has been highly successful in the treatment of chronic diseases such as cancer, AIDS, pain, hypertension, Parkinson's disease, cardiac failure, depression, or the epilepsies as the basic mechanisms of cell death do not differ between the different CNS degenerative diseases. We suggest the multi-target therapy approach could be more effective compared with single-drug treatments. Used at doses lower than standard, these triads may also be safer and more efficient. After the establishment of a proof-of-concept in animal models of retinal degeneration, potential successful preclinical trials of such combinations may eventually drive to test this concept in clinical trials in patients, first to evaluate the safety and efficacy of the drug combinations in humans and then their therapeutic advantages, if any, seeking the prevention and/or the delay of retina degeneration and blindness.
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