A sejtek közötti kommunikáció útjai
Intercellular Communication Pathways

Summary/Abstract: Cells communicate with each other through three different pathways: direct physical contact, chemical molecules and via electrical signals. This latter is characteristic to neurons. Direct intercellular contacts are responsible not only for submitting information among the cells, but also form an interface separating them. Tight junctions are the tightest intercellular connections characteristic primarily to epithelial cells. Adherens junctions and desmosomes also have the principal role of separating the cells, while gap junctions make possible the transfer of signalling molecules between two cells by interconnecting their cytoplasm. Communication via signalling molecules is a very effective type of intercellular information supply. In this respect cells can send signals to their own receptors (autocrine signalling), to cells coming in direct contact with them (juxtacrine signalling) and over short or large distances (paracrine and endocrine signalling, respectively). The most important endocrine signalling molecules are the hormones.

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