Abstract
Neuroinflammation and oxidative stress play critical role in the pathophysiology of neurodegenerative diseases including Parkinson’s disease (PD). Recent reports indicate the beneficial effect of anti-inflammatory drugs in attenuating the progression of PD. Therefore, the present study is aimed to evaluate the possible role of licofelone, a dual COX/LOX-inhibitor against MPTP-induced neurotoxicity in mice. Administration of MPTP (40 mg/kg in divided doses of four injections of 10 mg/kg, i.p. each at 1 h interval) significantly impaired locomotor activity and induced catatonia, oxidative damage (elevated levels of lipid peroxidation, superoxide anion and nitrite, and decreased levels of non-protein thiols) as compared with vehicle-treated animals. Biochemical studies revealed significant alterations in mitochondrial enzyme complex activities (decreased complex-I activity and mitochondrial viability) and increased levels of caspase-3 and NF-κB/p65 as compared to vehicle treated group. Licofelone (2.5, 5 or 10 mg/kg/day, p.o.) treatment for 7 days significantly improved locomotor activity, attenuated the severity of catatonia, oxidative damage and restored mitochondrial enzyme complex activity as compared to MPTP-treated group. Licofelone treatment also attenuated the expression of apoptotic factor (caspase-3) and transcription factor (NF-κB/p65) as compared to MPTP-treated group. The findings of the present study suggest that licofelone (dual inhibitor of COX and LOX) represents a new class of anti-inflammatory agent which may provide a novel therapeutic alternative for the treatment and management of PD.
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The study is supported by the research grant of Council of Scientific and Industrial Research (CSIR), New Delhi and Amit Gupta is a Senior Research Fellow under the project.
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Gupta, A., Kumar, A. & Kulkarni, S.K. Licofelone attenuates MPTP-induced neuronal toxicity: behavioral, biochemical and cellular evidence. Inflammopharmacol 18, 223–232 (2010). https://doi.org/10.1007/s10787-010-0052-6
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DOI: https://doi.org/10.1007/s10787-010-0052-6