Background: Equisetum arvense L. (Horsetail) is a medicinal perennial herb widely distributed across the Northern Hemisphere. Traditionally utilized for gastrointestinal, renal, and musculoskeletal disorders, its specific alkaloid profile and associated anticancer properties (particularly regarding regional chemotypes) remain understudied. Objective: This study evaluated the phytochemical composition of alkaloids isolated from E. arvense growing in northern Iraq and evaluated their cytotoxic potential against three human cancer cell lines (HePG2, WRL68, and SK-GT2) alongside a normal cell line (REF). Methods: Purified alkaloids were extracted from E. arvense and subjected to qualitative and quantitative chemical profiling. Cytotoxicity was evaluated across a concentration range of 25 to 1600 μg/ml at multiple exposure intervals using standard cell viability assays. Results: Chromatographic analysis identified five distinct alkaloids: hordenine (426.4 μg/g), caulerpin (324.1 μg/g), martensine (139.3 μg/g), isoquinoline (139.1 μg/g), and almazolone (77.6 μg/g). The total alkaloid extract demonstrated concentration- and time-dependent cytotoxicity across all cancerous cell lines (P < 0.05). Following 24 hours of exposure at 1600 μg/ml, maximum growth inhibition was observed in HePG2 (78.90 %) and SK-GT2 (77.40 %) cells, with moderate inhibition in WRL68 cells (39.90 %). Notably, no significant cytotoxic effect was observed against the normal REF cell line. Conclusion: The alkaloid fraction of E. arvense native to northern Iraq exhibits selective cytotoxic activity against human cancer cell lines while sparing normal cells, supporting its potential as a source for natural lead compounds in oncology drug discovery.
نوع مطالعه:
پژوهشی |
موضوع مقاله:
گياهان دارویی دریافت: 1403/1/16 | پذیرش: 1405/5/4 | انتشار: 1405/6/7