Abstract:
:For survival, parasite exerts several lines of defense of which drug neutralization is one of the major phenomena. Lack of phase I cytochrome P450 in some of the nematode render them depend on the phase II detoxification system involving GST as a major detoxifying enzymes. In present study, the antifilarial DEC, phenolic compound BHA and methyl chalcone have been evaluated for proteomic and biochemical studies in Setaria cervi. BHA and methyl chalcone showed cytotoxic effect leading to irreversible inhibition in motility and viability of parasites. These drugs showed marked alteration in proteomic profile of S. cervi at 100 μM concentration with 10.82, 8.52 and 6.75% downregulated (<0.5) and 7.64, 31.78 and 24.32% upregulated (>1.5) in DEC, BHA and methyl chalcone treatment respectively. Significant depletion in GSH level with increase in NO production was observed. Amongst these compounds, methyl chalcone demonstrated significant inhibitory effect (p<0.05) on GST, PGHS and PTP activity leading to loss of metabolic homeostasis and parasite death. The cytotoxic response and altered expression profile of major enzymes under drug exposure suggested the oxidative stress induced apoptosis as a major cause of parasite killing which was further supported by DNA fragmentation in BHA and methyl chalcone.
journal_name
J Proteomicsjournal_title
Journal of proteomicsauthors
Rathaur S,Yadav M,Singh N,Singh Adoi
10.1016/j.jprot.2011.04.020subject
Has Abstractpub_date
2011-08-24 00:00:00pages
1595-606issue
9eissn
1874-3919issn
1876-7737pii
S1874-3919(11)00179-5journal_volume
74pub_type
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