نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانشیار، گروه زیست‌شناسی، دانشکده علوم، دانشگاه شهید چمران اهواز، اهواز، ایران
2 دانش‌آموخته دکتری حرفه‌ای دامپزشکی دانشکده دامپزشکی دانشگاه شهیدچمران اهواز، اهواز، ایران
چکیده
زمینه و هدف: در سال‌های اخیر، محققان به دلیل فعالیت بیولوژیکی بالاو سمیت کم، بر فعالیت ضدسرطانی کومارین تمرکز کرده اند که میتوانند عوارض جانبی ناشی از پرتودرمانی را خنثی کنند. هدف از مطالعه حاضر، بررسی تأثیرات سیتوتوکسیک کومارین بر سلولهای سرطانی رده‌های HT-29 و A549 می باشد.
مواد و روش‌ها: در این مطالعه تجربی، استوک کومارین تهیه و سلولها با غلظتهای 5، 10، 15، 20 و 25 میکرومولار آن تیمار شدند و در روزهای 1، 3 و 5 روز پس از تیمار، بقا و مورفولوژی سلولها ارزیابی شد. غلظت IC50 کومارین با استفاده از روش MTT در دو رده سلولی محاسبه گردید. همچنین بیان ژنهای درگیر درآپوپتوز همچون Bax, Bad و Bcl-2 با روش qRT_PCR ارزیابی شد. یافته ها با استفاده از روش آماری واریانس یک‌طرفه تحلیل گردید.
یافته‌ها: نتایج نشان داد که کومارین به‌صورت وابسته به دوزو زمان، میزان بقا و تکثیر سلولهای HT-29 و A549 را به‌طور معنی-داری (P≤0.001)کاهش می‌دهد همچنین درصد بقای سلولی در سلولهای تیمارشده در روز پنجم نسبت به گروه کنترل، به‌شدت کاهش یافت که نسبت به نمونه های روز اول و سوم هم کاهش معنی دار را نشان داد (P≤0.001). تغییرات موروفولوژی همچون کاهش تراکم سلولی، گردشدن و چروکیدکی سلولها نیز به‌طور محسوسی در سلولهای تیمار شده مشاهده شد. همچنین، نتایج مولکولی نشان داد که کومارین توانست سبب افزایش معنی دار بیان ژنهای Bax, Bad و کاهش بیان ژن Bcl-2 گردد که این تغییرات ژنی در سلولهای A549 به‌طور معنی داری بیشتر از HT-29 بود.
نتیجه‌گیری: کومارین قادر است فعالیت ضدتکثیری و القای آپوپتوزی مؤثری در برابر سلولهای سرطانی کولون و ریه داشته باشد.
کلیدواژه‌ها
موضوعات
عنوان مقاله [English]
Evaluation of the Effects of Coumarin on Apoptotic Genes Expression in Lung and Colorectal Cancer Cells
نویسندگان [English]
- elham hoveizi 1
- Kiavash Hushmandi 2
1 Associate Professor, Department of Biology, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran
2 Doctor of Veterinary Medicine (Graduated), Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran
چکیده [English]
Introduction: In recent years, researchers have considered the anticancer activity coumarins, due to their powerful biological activity and poor toxicity that can neutralize the side effects induced by radiotherapy. The aim of this study was to investigate the cytotoxic effects of coumarin on HT-29 and A549 cancer cells.
Materials and Methods: In this experimental study, the stoke of coumarin was prepared and then for 1,3, and 5 days at concentrations of5, 10, 15, 20, and 25 μM the cells were treated and evaluated on viability days and morphology of the cells indefinite days. The IC50 concentration of coumarin was calculated using MTT assay in two cell lines. Also, the expression of the involved genes in apoptosis such as Bax, Bad, and Bcl-2 was evaluated by the qRT_PCR method. Data were analyzed by a one-way ANOVA test.
Results: The results showed that coumarin reduced the viability and proliferation of HT-29 and special A549 cells by dose and time significantly (P≤0.001), as well as the viability rate of cells in treated cells on the fifth day, significantly decreased compared to the control group (P <0.05). Morphological changes such as reduced chromatin density, cell turnover were also noticeably observed in the cells. Also, molecular results showed that coumarin could significantly increase the expression of Bax, Bad genes and decrease the expression of Bcl-2 gene expression. That these genetic changes in A549 cells were significantly greater than HT-29.
Conclusion: Coumarin is capable of anti-proliferative activity and induces apoptosis effectively against colon and lung cancer cells.
کلیدواژه‌ها [English]
- Apoptosis
- Colorectal cancer
- Coumarin
- Cytotoxicity
- Lung carcinoma
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