Results 141 to 150 of about 1,686,598 (186)

Cell-to-cell communication in vascular morphogenesis

Current Opinion in Plant Biology, 2010
The plant vascular system consists of two conductive cell types, xylem and phloem, which are both produced by procambial cells. Recently, several novel regulatory mechanisms that control the specification of vascular patterning and differentiation have been uncovered.
Satu J, Lehesranta, Raffael, Lichtenberger, Ykä, Helariutta   +2 more
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Cell-to-cell communication

Nature, 1989
Products for examining the intricacies of cell function will be on hand next week when the American Society for Cell Biology and the American Society for Biochemistry and Molecular Biology hold their joint meeting in San Francisco, California. Below are several examples.
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Cell-to-cell communication in cultured Sertoli cells

Pfl�gers Archiv European Journal of Physiology, 1985
Junctional transfer of ions in monolayer primary cultures of Sertoli cells has been studied by using conventional techniques. Cells were extensively electrically coupled. Membrane voltage displacements caused by the injected current pulses were measured at variable interelectrode distance. Data analyses were based on a thin-sheet model for current flow
Fabrizio Eusebi, GRASSI, Francesca, Fratamico Guiseppe, Susanna Dolci, Marco Conti, Mario Stefanini   +5 more
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Estrogen modulation of osteoblastic cell-to-cell communication

Journal of Cellular Biochemistry, 1998
Two osteoblastic cell populations, calvarial and marrow stromal cells, were exposed to estrogen derivatives in vitro. The hormonal effect was monitored by following intracellular Ca+2 levels [Ca+2]i and gap-junction communication. We measured fast changes in intracellular Ca+2 levels in response, of these cells, to the steroid hormones.
R, Massas, R, Korenstein, D, Benayahu
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Cell-to-Cell Communication

1987
1 Gap Junction Structure.- 1. Introduction.- 2. Classification of Gap Junctions.- 3. Morphological Characterization of Type I Gap Junctions.- 3.1. Conventional Electron Microscopy.- 3.2. Quaternary Organization of the Gap Junction Channel.- 3.3. Possible Conformational Changes Involved in Gating.- 4.
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Functionalization of biomaterials and cell to cell communication

Bio-Medical Materials and Engineering, 2006
In the field of osseous substitution, the possibilities being offered to the surgeons prove sometimes difficult to apply in particular in the case of great losses of osseous substance. For these reasons, it is necessary to develop innovative techniques to satisfy the request increasing for substitutes and to see appearing on the market solutions ...
J, Amédée, B, Guillotin, S, Pallu, R, Bareille, A, Guignandon, Ch, Bourget, M C, Durrieu, L, Bordenave   +7 more
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Cell-to-Cell Communication

1978
In formulating Cell Theory, Schleiden(1) wrote in 1838: “Every higher organism is an aggregate of fully circumscribed and self-contained unit beings, the cells.” This basic tenet has been extraordinarily fruitful and influential in biology and medicine, and in many aspects its usefulness continues unabated.
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Growth factors modulate junctional cell-to-cell communication

The Journal of Membrane Biology, 1988
The epidermal growth factor (EGF) and the platelet-derived growth factor (PDGF) inhibit gap junctional communication in the mammalian cell lines NRK and BalbC 3T3: cell-to-cell transfer of a 400-dalton tracer molecule is reduced and junctional conductance is reduced. The inhibition of cell-to-cell transfer is reversible and dose dependent; half-maximal
P E, Maldonado, B, Rose, W R, Loewenstein   +2 more
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Renal Cell-to-Cell Communication via Extracellular ATP

Physiology, 2005
In the kidney, macula densa cells communicate with the mesangial cell-afferent arteriolar smooth muscle cell complex through ATP signaling. This signaling process involves release of ATP across the macula densa basolateral membrane through a maxi anion channel and the interaction of ATP with purinergic P2 receptors.
Peter, Komlosi, Attila, Fintha, P Darwin, Bell   +2 more
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Bacterial Cell-to-Cell Communication

2006
Many bacterial diseases are caused by organisms growing together as communities or biofilms. These microorganisms have the capacity to coordinately regulate specific sets of genes by sensing and communicating amongst themselves utilizing a variety of signals.
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