کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2194664 1550591 2011 17 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The role of canonical Wnt signaling in leg regeneration and metamorphosis in the red flour beetle Tribolium castaneum
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی بیولوژی سلول
پیش نمایش صفحه اول مقاله
The role of canonical Wnt signaling in leg regeneration and metamorphosis in the red flour beetle Tribolium castaneum
چکیده انگلیسی

Many organisms across the Metazoa have regenerative abilities with potentially conserved genetic mechanisms that can enlighten both medicine and evolutionary studies. Here, the role of canonical Wnt signaling was examined in the red flour beetle Tribolium castaneum in order to explore its role during metamorphosis and larval leg regeneration. Double-stranded RNA mediated silencing of Wnt-1 signaling resulted in a loss of wings and appendages with a dramatic reduction in width, indicating that the Wnt-1 signaling pathway is necessary for proper post-embryonic appendage development in T. castaneum. Furthermore, disruption of canonical Wnt signaling led to the complete impairment of limb regeneration in T. castaneum. Our findings suggest that Wnt-1 signaling is a conserved mechanism for appendage development across all holometabolous insects and indicate that the role of Wnt-1 signaling in limb regeneration has been retained across all insects as various modes of limb development evolved. Importantly, this study shows that the availability of the genome sequence and the ease of performing leg ablations make Tribolium an excellent holometabolous insect model for studying regeneration.


► Postembryonic role of canonical Wnt signaling is examined in Tribolium castaneum.
► Wnt-1 and Armadillo are necessary for postembryonic appendage development.
► Wnt-1 signaling is essential for leg and antennal regeneration.
► We demonstrate that Tribolium is an excellent model for studying limb regeneration.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Mechanisms of Development - Volume 128, Issues 7–10, September–December 2011, Pages 342–358
نویسندگان
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