منابع مشابه
Regeneration and pattern formation in planarians
In planarians, blastema cells do not divide, and growth of blastema is thought to result from the steady accumulation, beneath the wound epithelium, of undifferentiated cells produced by cell division in the stump. However, whether these cells come only from local stump sources or whether cells placed far from the wound can also participate, after long-range migrations, in the growth of blastem...
متن کاملRegeneration: Organizing the Blastema in Planarians
The processes that trigger regeneration after injury and link new and old tissue are not fully understood. New findings indicate that, after decapitation, planarians build an organizing center from stem cells at the old midline that directs head patterning and outgrowth.
متن کاملStem cells and regeneration in planarians.
Understanding stem cells is a major goal of current research because of its potential medical applications. Although great advances have been made, such as the culturing and differentiation of embryonic stem cells and reprogramming of cell fates, many basic questions remain unanswered. Describing the mechanisms underlying regeneration will help to understand the biology of stem cells and theref...
متن کاملS19-01 Planarians, stem cells, and regeneration
ical role in regulating their entry into the myogenic programme. We had shown that in the Pax3/7 double mutant the myogenic determination genes, Myf5 and MyoD are not activated, leading to a major deficit in skeletal muscle. Pax3 directly activates Myf5, thus promoting a myogenic cell fate. However, it is essential to maintain a balance between differentiation and renewal of the progenitor cell...
متن کاملA regulatory program for excretory system regeneration in planarians.
Planarians can regenerate any missing body part, requiring mechanisms for the production of organ systems in the adult, including their prominent tubule-based filtration excretory system called protonephridia. Here, we identify a set of genes, Six1/2-2, POU2/3, hunchback, Eya and Sall, that encode transcription regulatory proteins that are required for planarian protonephridia regeneration. Dur...
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ژورنال
عنوان ژورنال: Lab Animal
سال: 2020
ISSN: 0093-7355,1548-4475
DOI: 10.1038/s41684-020-0495-3