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Modelling cell lineage using a meta-Boolean tree model with a relation to gene regulatory networks
Linköpings universitet, Matematiska institutionen, Tillämpad matematik. Linköpings universitet, Tekniska högskolan.ORCID-id: 0000-0002-1082-8325
Linköpings universitet, Institutionen för systemteknik. Linköpings universitet, Tekniska högskolan.
Karolinska Institutet, Stockholm, Sweden.
Karolinska Institutet, Stockholm, Sweden.
Vise andre og tillknytning
2011 (engelsk)Inngår i: Journal of Theoretical Biology, ISSN 0022-5193, Vol. 268, nr 1, s. 62-76Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

A cell lineage is the ancestral relationship between a group of cells that originate from a single founder cell. For example, in the embryo of the nematode Caenorhabditis elegans an invariant cell lineage has been traced, and with this information at hand it is possible to theoretically model the emergence of different cell types in the lineage, starting from the single fertilized egg. In this report we outline a modelling technique for cell lineage trees, which can be used for the C. elegans embryonic cell lineage but also extended to other lineages. The model takes into account both cell-intrinsic (transcription factor-based) and -extrinsic (extracellular) factors as well as synergies within and between these two types of factors. The model can faithfully recapitulate the entire C. elegans cell lineage, but is also general, i.e., it can be applied to describe any cell lineage. We show that synergy between factors, as well as the use of extrinsic factors, drastically reduce the number of regulatory factors needed for recapitulating the lineage. The model gives indications regarding co-variation of factors, number of involved genes and where in the cell lineage tree that asymmetry might be controlled by external influence. Furthermore, the model is able to emulate other (Boolean, discrete and differential-equation-based) models. As an example, we show that the model can be translated to the language of a previous linear sigmoid-limited concentration-based model (Geard and Wiles, 2005). This means that this latter model also can exhibit synergy effects, and also that the cumbersome iterative technique for parameter estimation previously used is no longer needed. In conclusion, the proposed model is general and simple to use, can be mapped onto other models to extend and simplify their use, and can also be used to indicate where synergy and external influence would reduce the complexity of the regulatory process.

sted, utgiver, år, opplag, sider
Amsterdam: Elsevier, 2011. Vol. 268, nr 1, s. 62-76
Emneord [en]
Differentiation, Transcription factor, Asymmetric cell division
HSV kategori
Identifikatorer
URN: urn:nbn:se:liu:diva-63386DOI: 10.1016/j.jtbi.2010.10.003ISI: 000284918100007OAI: oai:DiVA.org:liu-63386DiVA, id: diva2:379166
Tilgjengelig fra: 2010-12-17 Laget: 2010-12-17 Sist oppdatert: 2019-08-15bibliografisk kontrollert

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Modelling cell lineage using a meta-Boolean tree model with a relation to gene regulatory networks(370 kB)16 nedlastinger
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Larsson, Jan-ÅkeWadströmer, NiclasForchheimer, Robert

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