منابع مشابه
Homing therapy
The BDNF-induced increase (left) in synapses (red) on a neuron (green) is lost if í µí»-catenin and cadherin are locked together (right). S tem cells become much more effi cient at muscle repair if they fi rst get a boost of cytokines and migratory adhesion molecules, report Galvez et al. (page 231). The improved repair stems from better homing abilities. Skeletal muscle can be repaired by a c...
متن کاملRecirculation and Homing of Lymphocyte Subsets: Dual Homing Specificity
The p7-integrin subunit can pair with two a-chains, a4 and aE, and is expressed mainly on lymphocytes. As an a4-heterodimer it binds to the mucosal addressin MAdCAM-1, thus acting as a mucosal homing receptor. As an aE-heterodimer it binds to E-cadherin and is mainly found on intestinal intraepithelial lymphocytes. Consequently, p7 is mostly expressed on lymphocytes of the mucosal immune system...
متن کاملInsect-Inspired Robotic Homing
Many animals, including insects, successfully engage in visual homing. We describe a system that allows a mobile robot to home. Specifically, we propose a simple, yet robust, homing scheme that only relies upon the observation of the bearings of visible landmarks. However, this can easily be extended to include other visual cues. The homing algorithm allows a mobile robot to home incrementally ...
متن کاملGene Conversion and Homing
IF AN RNA OR PROTEIN MOLECULE is damaged, the cell will typically degrade the entire molecule and replace it with a new one. But cells cannot do this with DNA. A chromosome is too big and the copy number is too low, so it is far more efficient to repair the chromosome than to replace it. If only one DNA strand is damaged, the other may be used as a template for repair; alternatively, if both st...
متن کاملHoming in on helminths.
I am honored to give this lecture dedicated to the memory of Dr. Fred Soper, whose pioneering efforts against the insect vectors of malaria and yellow fever are legendary. Soper and his col leagues also played key roles in restoring the con cept of eradication to respectability after the col lapse of earlier campaigns to eradicate hookworm and yellow fever. When Soper was himself in vited to gi...
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ژورنال
عنوان ژورنال: The Iowa Review
سال: 1978
ISSN: 0021-065X,2330-0361
DOI: 10.17077/0021-065x.2394