Journal
JOURNAL OF NEURAL TRANSMISSION
Volume 125, Issue 10, Pages 1403-1415Publisher
SPRINGER WIEN
DOI: 10.1007/s00702-018-1913-1
Keywords
Doxycycline; Antibiotic; Drug repurposing; Neuroprotection; Parkinson's disease; Tetracycline
Categories
Funding
- Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP)
- CAPES (Conselho de Aperfeicoamento de Pessoal)
- Conselho Nacional de Pesquisa (CNPq)
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The prevalence of Parkinson's disease, which affects millions of people worldwide, is increasing due to the aging population. In addition to the classic motor symptoms caused by the death of dopaminergic neurons, Parkinson's disease encompasses a wide range of nonmotor symptoms. Although novel disease-modifying medications that slow or stop Parkinson's disease progression are being developed, drug repurposing, which is the use of existing drugs that have passed numerous toxicity and clinical safety tests for new indications, can be used to identify treatment compounds. This strategy has revealed that tetracyclines are promising candidates for the treatment of Parkinson's disease. Tetracyclines, which are neuroprotective, inhibit proinflammatory molecule production, matrix metalloproteinase activity, mitochondrial dysfunction, protein misfolding/aggregation, and microglial activation. Two commonly used semisynthetic second-generation tetracycline derivatives, minocycline and doxycycline, exhibit effective neuroprotective activity in experimental models of neurodegenerative/ neuropsychiatric diseases and no substantial toxicity. Moreover, novel synthetic tetracyclines with different biological properties due to chemical tuning are now available. In this review, we discuss the multiple effects and clinical properties of tetracyclines and their potential use in Parkinson's disease treatment. In addition, we examine the hypothesis that the anti-inflammatory activities of tetracyclines regulate inflammasome signaling. Based on their excellent safety profiles in humans from their use for over 50years as antibiotics, we propose the repurposing of tetracyclines, a multitarget antibiotic, to treat Parkinson's disease.
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