Marko Marhl (Avtor), Denis Noble (Avtor), Etienne Roux (Avtor)

Povzetek

In airway myocytes signal transduction via cytosolic calcium plays an important role. In relation with experimental results we review models of basic molecular and cellular mechanisms involved in the signal transduction from the myocyte stimulation to the activation of the contractile apparatus. We concentrate on mechanisms for encoding of input signals into Ca2+ signals and the mechanisms for their decoding. The mechanisms are arranged into a general scheme of cellular signaling, the so-called bow-tie architecture of signaling, in which calcium plays the role of a common media for cellular signals and links the encoding and decoding part. The encoding of calcium signals in airway myocytes is better known and is presented in more detail. Inparticular, we focus on three recent models taking into account the intracellular calcium handling and ion fluxes through the plasma membrane. Themodel of membrane conductances was originally proposed for predicting membrane depolarization and voltage-dependent Ca2+ influx triggered by initialcytosolic Ca2+ increase as observed on cholinergic stimulation. Cellular models of intracellular Ca2+ handling were developed to investigate the role of a mixed population of InsP3 receptor isoforms and the cellular environment in the occurrence of Ca2+ oscillations, and the respective role ofthe sarcoplasmic reticulum, mitochondria, and cytosolic Ca2+-binding proteins in cytosolic Ca2+ clearance. Modeling the mechanisms responsible for the decoding of calcium signals is developed in a lesser extent; however, the most recent theoretical studies are briefly presented in relation with the known experimental results.

Ključne besede

biofizika;matematično modeliranje;modeliranje;kalcijeve oscilacije;gladke mišice;krčenje mišic;vkodiranje;dekodiranje;matematični modeli;ne zaključna dela;biophysics;mathematical modelling;modelling;calcium oscillations;contractions;airway smooth muscle cells;muscle cells;smooth muscles;encoding;decoding;bow-tie structures;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.02 - Pregledni znanstveni članek
Organizacija: UM FNM - Fakulteta za naravoslovje in matematiko
UDK: 577.353
COBISS: 15169288 Povezava se bo odprla v novem oknu
ISSN: 1085-9195
Št. ogledov: 1842
Št. prenosov: 43
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Slovenski jezik
Sekundarne ključne besede: Biofizika;
URN: URN:SI:UM:
Vrsta dela (COBISS): Članek v reviji
Strani: str. 285-302
Letnik: ǂVol. ǂ46
Zvezek: ǂno. ǂ3
Čas izdaje: 2006
ID: 8724210