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In this paper the cytotoxicity of mycelium and broth constituents of endophytic fungus Aspergillus nidulans from Nyctanthes arbor-tristis is reported for the first time. The study shows that fungus Aspergillus nidulans from Nyctanthes arbor-tristis is capable of producing biologically active natural compounds and provides a scientific rationale for further chemical investigations into endophyte-producing natural products.

Several Euphorbia species have been used in folklore as cancer remedies, however, scientific studies on the cytotoxicity (in vitro studies) of Euphorbia caducifolia are lacking. In present study, anticancer potential of E. caducifolia aerial parts ethanol extract and its fractions were evaluated against human lung (NCI-H460), breast (MCF-7), prostate (PC-3) and cervical (HeLa) cancer cell lines, using sulphorhodamine-B in vitro cytotoxicity (in vitro studies) assay. The ethanol extract demonstrated growth inhibitory effect against all aforementioned cancer cell lines with IC, 19-135 μg/mL and LC, ~220 μg/mL, and its petroleum ether fraction obtained on bioactivity guided fraction showed highest activity with IC, 28-70 μg/mL and LC, 71 μg/mL against NCI-H460 and MCF-7 cell lines. Its phytochemicals were analysed by gas chromatography-mass spectrometry (GC-MS). The present study provides scientific justification for its traditional use against cancer.