کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8323 586 2011 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The potential of celecoxib-loaded hydroxyapatite-chitosan nanocomposite for the treatment of colon cancer
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی بیو مهندسی (مهندسی زیستی)
پیش نمایش صفحه اول مقاله
The potential of celecoxib-loaded hydroxyapatite-chitosan nanocomposite for the treatment of colon cancer
چکیده انگلیسی

Celecoxib has shown potential anticancer activity against most carcinomas, especially in patients with familial adenomatous polyposis and precancerous disease of the colon. However, serious side effects of celecoxib restrict its generalized use for cancer therapy. In order to resolve these issues and develop an alternative strategy/preliminary approach, chitosan modified hydroxyapatite nanocarriers-mediated celecoxib delivery represents a viable strategy. We characterized the nanoparticle for morphology, particle size, zeta potential, crystalinity, functional group analysis, entrapment efficiency, drug release and hemocompatibility. The effects of celecoxib-loaded nanoparticles on colon cancer cell proliferation, morphology, cytoskeleton, cellular uptake and apoptosis were analysed in vitro. Further, we evaluated the antiproliferative, apoptotic and tumor inhibitory efficacy of celecoxib-loaded nanocarriers in a nude mouse human xenograft model. Nanoparticles exhibited small, narrow hydrodynamic size distributions, hemocompatibility, high entrapment efficiencies and sustained release profiles. In vitro studies showed significant antiproliferation, apoptosis and time-dependent cytoplasmic uptake of celecoxib-loaded Hap-Cht nanoparticles in HCT 15 and HT 29 colon cancer cells. Additional in vivo studies demonstrated significantly greater inhibition of tumor growth following treatment with this modified nanoparticle system. The present study indicates a promising, effective and safe means of using celecoxib, and potentially other therapeutic agents for colon cancer therapy.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biomaterials - Volume 32, Issue 15, May 2011, Pages 3794–3806
نویسندگان
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