Abstract
The study was aimed at the identification of a potential anti-cancer compound from the leaf extract of Lagerstroemia speciosa, against pancreatic cancer cells (PANC-1). Out of different extracts tested, methanolic extract showed significant cytotoxicity at an IC50 of 289.5 ± 0.03 µg/mL after 24 h (MTT assay). The safety of the extract was ascertained using normal pancreatic cells (hTERT-HPNE). Methanolic extract was able to induce apoptosis in 28.9 ± 0.01% of PANC-1 cells as determined by flow cytometry. RT-PCR analysis of PANC-1 cells also recorded an increase in the mRNA expression of pro-apoptotic genes i.e., Caspase-3 (12.82 folds), Rb (10 folds) and Bad (8.74 folds) after treatment. Expression of other pro-apoptotic genes such as Bax and TNF was also upregulated by 4.04 and 4.01 folds, respectively. However, the mRNA expression of anti-apoptotic genes, NF-κB, Cdk and Bcl-2 was found to be downregulated. The bioactive extract was then fractionated on preparative silica gel plates into 24 bands. Out of these, band fraction 9 exhibited significant cytotoxicity (IC50 219 ± 0.04 µg/mL) on the PANC-1 cells. The mass spectral (HPLC–MS) and FTIR analysis of the fraction indicated the bioactive compound to be a derivative of Diosgenin, which can be a possible candidate for cancer therapeutics in future.
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Acknowledgements
Authors express their gratitude towards BIRAC, New Delhi, India, Fresenius Kabi Oncology Limited (FKOL), Baddi, Himachal Pradesh, India and BioNEST-Panjab University, Chandigarh, India, for providing the financial support.
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This research work was funded by BIRAC, New Delhi, India, Fresenius Kabi Oncology Limited (FKOL), Baddi, Himachal Pradesh, India and BioNEST-Panjab University, Chandigarh, India.
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Lagerstroemia speciosa (L.) Pers. was identified and deposited at the Herbarium, Department of Botany, Panjab University, Chandigarh vide voucher specimen number: 21687.
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Goyal, S., Sharma, M. & Sharma, R. Bioactive compound from Lagerstroemia speciosa: activating apoptotic machinery in pancreatic cancer cells. 3 Biotech 12, 96 (2022). https://doi.org/10.1007/s13205-022-03155-w
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DOI: https://doi.org/10.1007/s13205-022-03155-w