منابع مشابه
Hedgehog signaling is essential for endothelial tube formation during vasculogenesis.
During embryonic development, the first blood vessels are formed through the aggregation and subsequent assembly of angioblasts (endothelial precursors) into a network of endothelial tubes, a process known as vasculogenesis. These first vessels generally form in mesoderm that is adjacent to endodermal tissue. Although specification of the angioblast lineage is independent of endoderm interactio...
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Living organisms, from bacteria to vertebrates, are well known to generate sophisticated multicellular patterns. Numerous recent interdisciplinary studies have focused on the formation and regulation of these structures. Advances in automatized microscopy allow the time-resolved tracking of embryonic development at cellular resolution over an extended area covering most of the embryo. The resul...
متن کاملLectin Histochemical Study of Vasculogenesis During Rat Pituitary Morphogenesis
Objective(s) The aim of this study was to investigate glycoconjugates distribution patterns as well as their changes during the course of pituitary portal vasculogenesis and angiogenesis. Materials and Methods Formalin fixed paraffin sections of 10 to 20 days of Sprague Dawly rat fetuses were processed for histochemical studies using four different horseradish peroxidase (HRP) conjugated lec...
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Cell-cell recognition often requires the formation of a highly organized pattern of receptor proteins (a synapse) in the intercellular junction. Recent experiments [e.g., Monks, C. R. F., Freiberg, B. A., Kupfer, H., Sciaky, N. & Kupfer, A. (1998) Nature (London) 395, 82-86; Grakoui, A., Bromley, S. K., Sumen, C., Davis, M. M., Shaw, A. S., Allen, P. M. & Dustin, M. L. (1999) Science 285, 221-2...
متن کاملPattern formation during T-cell adhesion.
T cells form intriguing patterns during adhesion to antigen-presenting cells. The patterns are composed of two types of domains, which either contain short TCR/MHCp receptor-ligand complexes or the longer LFA-1/ICAM-1 complexes. The final pattern consists of a central TCR/MHCp domain surrounded by a ring-shaped LFA-1/ICAM-1 domain, whereas the characteristic pattern formed at intermediate times...
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ژورنال
عنوان ژورنال: Birth Defects Research Part C: Embryo Today: Reviews
سال: 2012
ISSN: 1542-975X
DOI: 10.1002/bdrc.21010