نتایج جستجو برای: cell contact
تعداد نتایج: 1824576 فیلتر نتایج به سال:
Acanthamoeba keratitis is increasingly being diagnosed among people who wear thrapeutic and cosmetic contact lenses. The chain of events is thought to begin with contamination of the contact lens storage cases with Acanthamoeba from household or mains water supplies. If bacteria contamination is also present then these amoebas can multiply by ingesting the bacteria as a food source. If the cont...
Contact-inhibition of proliferation constrains epithelial tissue growth, and the loss of contact-inhibition is a hallmark of cancer cells. In most physiological scenarios, cell-cell contact inhibits proliferation in the presence of other growth-promoting cues, such as soluble growth factors (GFs). How cells quantitatively reconcile the opposing effects of cell-cell contact and GFs, such as epid...
Positional communication and the functional coupling of muscular reflexes were examined in grafted hydra. A head and distal gastric region inhibited head regeneration by a host sub-hypostome within 4--5 h of grafting. Functionally coupled pathways which indicated the presence of gap junctions also formed between graft and host during this time. It is suggested that gap junctions provide a chann...
Directional collective migration is now a widely recognized mode of migration during embryogenesis and cancer. However, how a cluster of cells responds to chemoattractants is not fully understood. Neural crest cells are among the most motile cells in the embryo, and their behavior has been likened to malignant invasion. Here, we show that neural crest cells are collectively attracted toward the...
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