ارزیابی اثرات پیش درمانی با دفروکسامین بر روی بیان ژنهای آنژیوژنیک VEGF ، ANGP1 و TGFβ1در سلولهای بنیادی مشتق از چربی بیماران مبتلا به دیابت نوع 2
محورهای موضوعی : پاتوبیولوژی مقایسه ایراضیه تجلی 1 , اکرم عیدی 2 , حسین احمدی تفتی 3 , عبدالرضا پازوکی 4 , علی محمد شریفی 5
1 - گروه زیست شناسی، دانشکده علوم و فناوریهای همگرا، واحد علوم و تحقیقات، دانشگاه آزاد اسلامی، تهران، ایران.
2 - گروه زیست شناسی، دانشکده علوم و فناوریهای همگرا، واحد علوم و تحقیقات، دانشگاه آزاد اسلامی، تهران، ایران.
3 - مرکز تحقیقات فناوریهای پیشرفته در پزشکی قلب و عروق، بیمارستان مرکز قلب تهران، دانشکده پزشکی دانشگاه تهران، تهران، ایران.
4 - مرکز تحقیقات جراحی کم تهاجمی، دانشگاه علوم پزشکی ایران، تهران، ایران.
5 - -مرکز تحقیقات سلول های بنیادی و پزشکی بازساختی، دانشگاه علوم پزشکی ایران، تهران، ایران.
- مرکز تحقیقات دارویی رازی و گروه فارماکولوژی، دانشکده پزشکی، دانشگاه علوم پزشکی ایران، تهران، ایران.
- گروه مهندسی بافت، (NOCERAL)، گروه جراحی ارتوپدی، دانشکده پزشکی، دانشگاه مالایا، کوالالامپور، مالزی.
کلید واژه: سلولهای بنیادی مشتق از بافت چ, دفروکسامین, آنژیوژنز, بیان ژن,
چکیده مقاله :
سلولهای بنیادی مشتق از بافت چربی (ADSCs) یک درمان امیدوارکننده برای ترمیم زخمهای دیابتی به شمار میآید. اما، اثربخشی درمان اتولوگ مبتنی برADSCهای مشتق از بیماران مبتلا به دیابت نیاز به بهبود دارد. هدف از این پژوهش، بررسی اثر پیش درمانی با دفروکسامین بر روی بیان ژنهای آنژیوژنیک در ADSCهای دیابتی درمان شده با دفروکسامین بود. بدین منظور، بافت چربی شکمی از سه بیمار مبتلا به دیابت نوع 2 و سه فرد سالم در بیمارستان آتیهی تهران گرفته شد و ADSCs با روش آنزیمی استخراج و تا پاساژ سه کشت داده شدند. ADSCهای دیابتی با غلظتهای 75، 150 و 300 میکرومولار دفروکسامین به مدت 24 و 48 ساعت تیمار شدند. سپس میزان بقای سلولها با استفاده از تست WST1 و میزان بیان ژنهای VEGF، ANGP1 و TFGβ1 در ADSCهای نرمال، دیابتی و دیابتی درمان شده با دفروکسامین با تکنیک Real time PCR مورد بررسی قرار گرفت. نتایج مطالعهی حاضر نشان داد که میزان بیان هر سه ژن در نمونههای دیابتی نسبت به گروه نرمال به صورت معنی دار کاهش یافته بود (p<0/05). اما میزان بیان هر سه ژن بعد از درمان سلولها با غلظتهای 150 و 300 میکرومولار دفروکسامین به مدت 24 ساعت به صورت محسوسی نسبت به گروه دیابتی درمان نشده افزایش یافته بود (P< 0/05). به طور کلی، نتایج مطالعهی ما نشان داد که دفروکسامین به طور قابل توجهی باعث افزایش معنیدار بیان VEGF، ANGP1 و TGFβ1 در ADSCهای دیابتی و افزایش ظرفیت آنژیوژنز آنها میشود.
Adipose tissue-derived stem cells (ADSCs) have been considered a promising treatment for diabetic wound repair. However, the effectiveness of autologous ADSC-derived therapy for diabetic patients needs to be improved. The aim of this study was to investigate the effect of pretreatment with deferoxamine on the expression of the angiogenic genes in diabetic ADSCs preconditioned with deferoxamine. In this experimental study, abdominal adipose tissue was taken from three patients with type 2 diabetes and three healthy individuals, and stem cells derived from adipose tissue were extracted by the enzymatic method. Diabetic ADSCs were treated with 75, 150, and 300 μM deferoxamine concentrations for 24 and 48 hours. Then, the cell survival rate was evaluated using the WST1 test and the expression level of VEGF, ANGP1, and TFGβ1 genes in normal, diabetic, and diabetic ADSCs treated with deferoxamine using the Real-time PCR technique. The data were analyzed using Prism statistical software. Our results showed that the expression levels of VEGF, ANGP1 and TGFβ1 genes in diabetic samples were significantly decreased compared to the normal group (P<0.05). However, the expression level of all three genes after treating the cells with concentrations of 150 and 300 μM deferoxamine for 24 hours was significantly increased compared to the untreated diabetic group (P<0.05). Our results showed that deferoxamine significantly increases the expression of VEGF, ANGP1, and TGFβ1 in diabetic ADSCs and increases their angiogenic capacity.
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