کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6287731 | 1615633 | 2010 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Notch signaling and Atoh1 expression during hair cell regeneration in the mouse utricle
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کلمات کلیدی
PBSPFANICDqRTPCRGER - دادنNotch intracellular domain - دامنه درون سلولی Notchgreater epithelial ridge - رگه اپی تلیال بزرگترCerebrospinal fluid - مایع مغزی نخاعیCSF - مایع مغزی نخاعیPhosphate-buffered saline - محلول نمک فسفات با خاصیت بافریquantitative real-time polymerase chain reaction - واکنش زنجیره ای پلیمراز کمی زمان واقعی استparaformaldehyde - پارافرمالدهید
موضوعات مرتبط
علوم زیستی و بیوفناوری
علم عصب شناسی
سیستم های حسی
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
The mammalian vestibular epithelium has a limited capacity for spontaneous hair cell regeneration. The mechanism underlying the regeneration is not well understood. Because the Notch signaling pathway mediates the formation of the sensory epithelial mosaic patterning during ear development, it may also play a role in hair cell regeneration in the mature mammalian vestibular epithelium after a lesion. To investigate the process of spontaneous regeneration in the vestibular epithelium vis-Ã -vis changes in Notch signaling, we induced a unilateral lesion by infusing streptomycin into the mouse posterior semicircular canal, and examined Notch signaling molecules and their mRNA expression levels by immunohistochemistry and quantitative real-time polymerase chain reaction (qRTPCR), respectively. We detected Jagged1 in supporting cells in both normal and lesioned utricles. Atoh1, a marker for early developing hair cells, was absent in the intact mature tissue, but re-appeared after the lesion. Many cells were either positive for both Atoh1 and myosin VIIa, or for one of them. qRTPCR data showed a post trauma decrease of Hes5 and an increase in Atoh1. Atoh1 up-regulation may either be a result of Hes5 down-regulation or mediated by another signaling pathway.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Hearing Research - Volume 267, Issues 1â2, 1 August 2010, Pages 61-70
Journal: Hearing Research - Volume 267, Issues 1â2, 1 August 2010, Pages 61-70
نویسندگان
Guo-Peng Wang, Ishani Chatterjee, Shelley A. Batts, Hiu Tung Wong, Tzy-Wen Gong, Shu-Sheng Gong, Yehoash Raphael,