Wave instability of intercellular Ca2+ oscillations

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Author list: Tabi CB, Maina I, Mohamadou A, Fouda HPE, Kofan TC

Publisher: IOP Publishing

Place: MULHOUSE

Publication year: 2014

Journal: European Physical Society Letters (0295-5075)

Journal acronym: EPL-EUROPHYS LETT

Volume number: 106

Issue number: 1

Number of pages: 6

ISSN: 0295-5075

eISSN: 1286-4854

Languages: English-Great Britain (EN-GB)

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Abstract

Modulational instability is exclusively addressed in a minimal model for calcium oscillations in cells. The cells are considered to be coupled through paracrine signaling. The endoplasmic recticulum and cytosolic Ca2+ equations are reduced to a single differential- difference amplitude equation. The linear stability analysis of a plane wave is performed on the latter and the paracrine coupling parameter is shown to deeply influence the instability features. Our analytical expectations are confirmed by numerical simulations, as instability regions give rise to unstable Ca2+ wave patterns. We also discuss the possibility of perfect intercellular communication via the activation of modulational instability. Copyright (C) EPLA, 2014

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