Boolean modelling reveals new regulatory connections between transcription factors orchestrating the development of the ventral spinal cord

We have assembled a network of cell-fate determining transcription factors that play a key role in the specification of the ventral neuronal subtypes of the spinal cord on the basis of published transcriptional interactions. Asynchronous Boolean modelling of the network was used to compare simulation results with reported experimental observations. Such comparison highlighted the need to include additional regulatory connections in order to obtain the fixed point attractors of the model associated with the five known progenitor cell types located in the ventral spinal cord. The revised gene regulatory network reproduced previously observed cell state switches between progenitor cells observed in knock-out animal models or in experiments where the transcription factors were overexpressed. Furthermore the network predicted the inhibition of Irx3 by Nkx2.2 and this prediction was tested experimentally. Our results provide evidence for the existence of an as yet undescribed inhibitory connection which could potentially have significance beyond the ventral spinal cord. The work presented in this paper demonstrates the strength of Boolean modelling for identifying gene regulatory networks.

Medienart:

E-Artikel

Erscheinungsjahr:

2014

Erschienen:

2014

Enthalten in:

Zur Gesamtaufnahme - volume:9

Enthalten in:

PloS one - 9(2014), 11 vom: 05., Seite e111430

Sprache:

Englisch

Beteiligte Personen:

Lovrics, Anna [VerfasserIn]
Gao, Yu [VerfasserIn]
Juhász, Bianka [VerfasserIn]
Bock, István [VerfasserIn]
Byrne, Helen M [VerfasserIn]
Dinnyés, András [VerfasserIn]
Kovács, Krisztián A [VerfasserIn]

Links:

Volltext

Themen:

EC 1.13.12.-
Homeobox Protein Nkx-2.2
Homeodomain Proteins
Journal Article
Luciferases
NKX2-2 protein, human
Nuclear Proteins
Research Support, Non-U.S. Gov't
Transcription Factors

Anmerkungen:

Date Completed 14.07.2015

Date Revised 03.12.2021

published: Electronic-eCollection

Citation Status MEDLINE

doi:

10.1371/journal.pone.0111430

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM243547056