PMID- 30032733 OWN - NLM STAT- MEDLINE DCOM- 20190807 LR - 20190807 IS - 1475-2697 (Electronic) IS - 0022-149X (Linking) VI - 93 IP - 5 DP - 2019 Sep TI - Antifilarial activity of azadirachtin fuelled through reactive oxygen species induced apoptosis: a thorough molecular study on Setaria cervi. PG - 519-528 LID - 10.1017/S0022149X18000615 [doi] AB - Efficacious therapeutic strategies against lymphatic filariasis are always sought after. However, natural products are a promising resource for developing effective antifilarial agents. Azadirachtin, a significant tetranortriterpenoid phytocompound found in Azadirachta indica, was evaluated in vitro for antifilarial potential against the filarial parasite Setaria cervi. Dye exclusion and MTT assay confirmed the antifilarial potential of azadirachtin against S. cervi with a median lethal dose (LC50) of 6.28 mug/ml for microfilariae (mf), and 9.55 mug/ml for adult parasites. Morphological aberrations were prominent in the histological sections of the azadirachtin-exposed parasites. Moreover, alterations in the reactive oxygen species (ROS) parameters in treated parasites were evident. Induction of apoptosis in treated parasites was confirmed by DNA laddering, acridine orange (AO)/ethidium bromide (EtBr) double staining and in situ DNA fragmentation. The downregulation of anti-apoptotic CED-9 and upregulation of proapoptotic EGL-1, CED-4 and CED-3 at both the transcription and translation levels confirmed apoptosis execution at the molecular level. Changes in the gene expressions of nuc-1, cps-6 and crn-1 further clarified the molecular cause of DNA degradation. Furthermore, azadirachtin was found to be non-toxic in both in vitro and in vivo toxicity analyses. Therefore, the experimental evidence detailed the pharmacological effectiveness of azadirachtin as a possible therapeutic agent against filariasis. FAU - Mukherjee, N AU - Mukherjee N AD - Parasitology Laboratory,Department of Zoology (Centre for Advanced Studies),Visva-Bharati University,Santiniketan 731 235,West Bengal,India. FAU - Joardar, N AU - Joardar N AD - Parasitology Laboratory,Department of Zoology (Centre for Advanced Studies),Visva-Bharati University,Santiniketan 731 235,West Bengal,India. FAU - Sinha Babu, S P AU - Sinha Babu SP AUID- ORCID: 0000-0002-7441-6426 AD - Parasitology Laboratory,Department of Zoology (Centre for Advanced Studies),Visva-Bharati University,Santiniketan 731 235,West Bengal,India. LA - eng PT - Journal Article DEP - 20180723 PL - England TA - J Helminthol JT - Journal of helminthology JID - 2985115R RN - 0 (Anthelmintics) RN - 0 (Helminth Proteins) RN - 0 (Limonins) RN - 0 (Plant Extracts) RN - 0 (Reactive Oxygen Species) RN - O4U1SAF85H (azadirachtin) MH - Animals MH - Anthelmintics/*pharmacology MH - *Apoptosis MH - DNA Fragmentation MH - Elephantiasis, Filarial/drug therapy MH - Female MH - Helminth Proteins/genetics MH - Lethal Dose 50 MH - Limonins/*pharmacology MH - Male MH - Plant Extracts/*pharmacology MH - Reactive Oxygen Species/*metabolism MH - Setaria Nematode/*drug effects/genetics OTO - NOTNLM OT - Setaria cervi OT - anthelmintic OT - apoptosis OT - azadirachtin OT - lymphatic filariasis OT - reactive oxygen species OT - toxicity EDAT- 2018/07/24 06:00 MHDA- 2019/08/08 06:00 CRDT- 2018/07/24 06:00 PHST- 2018/07/24 06:00 [pubmed] PHST- 2019/08/08 06:00 [medline] PHST- 2018/07/24 06:00 [entrez] AID - S0022149X18000615 [pii] AID - 10.1017/S0022149X18000615 [doi] PST - ppublish SO - J Helminthol. 2019 Sep;93(5):519-528. doi: 10.1017/S0022149X18000615. Epub 2018 Jul 23.