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Background: For the past two decades, few conotoxins entered in clinical trial and some are available for pain relieving as well as for treatment of neurological disorders. Aim: The present investigation was made to elucidate the antiproliferative effect of crude venom from Conus virgo against human lung adenocarcinoma cells. Acute toxicity was determined on adult Zebra fish. Methods: Cytotoxicity was assessed by MTT assay where the DNA damage was carried out by DNA fragmentation method and the in vivo toxicity was assessed by OECD guidelines. Results: The cell viability was found to decrease and the cell lost their morphological integrity with increasing concentration (10, 20, 30, 40, 50, 60, 70, 80, 90 and 100 μg/ml) with an IC50 concentration of 74.69 μg/ml. The nuclear integrity and DNA fragmentation assay revealed the induction of DNA damage which was observed at 5 h. Further acute toxicity study was made, the LD50 was found at a concentration of 96.393μg/ml. The crude venom affects the locomotory activity of adult Zebra fish and induces the paralytic activity at 50, 75, 100 and 125 μg/ml concentrations. Histology of brain tissue indicated slight variations in the pallium. Conclusion: From the investigation, it was inferred that C. virgo venom could be a potential candidate for cancer chemotherapy.

Antiproliferative Effect of Crude Venom from Conus virgo on Human Lung Cancer Cell Line and Toxicity Assessment on Adult Zebra Fish (Danio rerio)