The European Physical Journal Special Topics

, Volume 225, Issue 13–14, pp 2581–2589 | Cite as

Growth rate and shape as possible control mechanisms for the selection of mode development in optimal biological branching processes

Regular Article Nonlinear Evolution Equations and Applications
Part of the following topical collections:
  1. Temporal and Spatio-Temporal Dynamic Instabilities: Novel Computational and Experimental Approaches


Recently three branching modes were characterized during the formation of the lung in mice. These modes are highly stereotyped and correspond to domain formation, planar bifurcation and three dimensional branching respectively. At the same time it is proved that although genetic control mechanisms are presumably related to the selection of any of these modes, other external factors will most probably be involved in the branching process during development. In this paper we propose that the underlying controling factors might be related to the rate at which the tubes that form the lung network grow. We present a mathematical model that allows us to formulate specific experimental predictions on these growth rates. Moreover we show that according to this formulation, there is an optimization criterion which governs the branching process during lung development, namely, efficient local space filling properties of the network. If there is no space limitation the branches are allowed to grow freely and faster, selecting one branching mode, namely, domain formation. As soon as volume constraints appear the growth rate decreases, triggering the selection of planar and orthogonal bifurcation.


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© EDP Sciences and Springer 2016

Authors and Affiliations

  1. 1.Centre de Recerca Matemàtica, Barcelona, España; Campus de Bellaterra, Edifici C.Bellaterra, BarcelonaSpain
  2. 2.Universidad Autónoma de Guerrero, Acapulco, MéxicoAcapulco, Gro.Mexico
  3. 3.Instituto de Ecología, UNAM, MéxicoCiudad de MéxicoMexico
  4. 4.Universidad Complutense de MadridMadridSpain
  5. 5.IIMAS, UNAM. Cd. UniversitariaCiudad de MéxicoMexico

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