کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
2067075 | 1077880 | 2009 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Corneal epithelial-like transdifferentiation of hair follicle stem cells is mediated by pax6 and β-catenin/Lef-1
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
بیوفیزیک
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Several types of adult stem cells are capable of transdifferentiaton into other types of tissues. The hair follicle bulge area is an abundant and easily accessible source of pluripotent adult stem cells. We demonstrate that the bulge KSCs have the potential for transdifferentiation into corneal epithelial-like cells. Bulge KSCs isolated by collagen type IV adhesiveness possessed the highest colony formation efficiency (CFE), and expressed specific markers (CD34 and α6-integrin). The isolated cells transdifferentiate into corneal epithelial-like cells in conditioned medium containing corneal limbus soluble factors, including their specific marker, keratin12. The transdifferentiation depends on upregulation of pax6 and downregulation of β-catenin and Lef-1. Furthermore, overexpression of pax6 in bulge KSCs induced their expression of k12. The expressions of β-catenin and Lef-1 were not suppressed in the pax6-transfected bulge KSCs, but which were downregulated pax6-transfected cells cultured in the conditioned medium. Bulge KSCs may have potential therapeutic application as cell source for the construction of bioengineered corneas.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Cell Biology International - Volume 33, Issue 8, August 2009, Pages 861-866
Journal: Cell Biology International - Volume 33, Issue 8, August 2009, Pages 861-866
نویسندگان
Ke Yang, Zilin Jiang, Dong Wang, Xiaohua Lian, Tian Yang,