منابع مشابه
The nuclear envelope as a chromatin organizer.
In the past 15 years our perception of nuclear envelope function has evolved perhaps nearly as much as the nuclear envelope itself evolved in the last 3 billion years. Historically viewed as little more than a diffusion barrier between the cytoplasm and the nucleoplasm, the nuclear envelope is now known to have roles in the cell cycle, cytoskeletal stability and cell migration, genome architect...
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Campos et al. (this issue) describe a developmental model that they use to specifically examine the influence of self-produced locomotion (SPL) on various psychological domains. In this model, locomotor experience is seen as an organizer of change across a range of psychological phenomena. SPL appears to influence emotional and perceptual development in profound ways, and it appears to do so vi...
متن کاملThe tip of the Dictyostelium discoideum pseudoplasmodium as an organizer.
We have extended Raper's original work on the organizing ability of the tip of the Dictyostelium discoideum slug. Our new results are that tips from all multicellular (pseudoplasmodial) stages act as organizers; that the structure organized by a tip depends on the developmental stage of the cells responding to the tip's signal; that tips from all stages release a qualitatively similar signal wh...
متن کاملMolecular nature of Spemann's organizer: the role of the Xenopus homeobox gene goosecoid.
This study analyzes the function of the homeobox gene goosecoid in Xenopus development. First, we find that goosecoid mRNA distribution closely mimics the expected localization of organizer tissue in normal embryos as well as in those treated with LiCl and UV light. Second, goosecoid mRNA accumulation is induced by activin, even in the absence of protein synthesis. It is not affected by bFGF an...
متن کاملThe eye as an organizer of craniofacial development.
The formation and invagination of the optic stalk coincides with the migration of cranial neural crest (CNC) cells, and a growing body of data reveals that the optic stalk and CNC cells communicate to lay the foundations for periocular and craniofacial development. Following migration, the interaction between the developing eye and surrounding periocular mesenchyme (POM) continues, leading to i...
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ژورنال
عنوان ژورنال: Deutsches Aerzteblatt Online
سال: 2010
ISSN: 1866-0452
DOI: 10.3238/arztebl.2010.0224a