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Carsten Peterson

Expert

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Dynamical modelling of haematopoiesis: an integrated view over the system in homeostasis and under perturbation.

Författare

  • Erica Manesso
  • José Teles
  • David Bryder
  • Carsten Peterson

Summary, in English

A very high number of different types of blood cells must be generated daily through a process called haematopoiesis in order to meet the physiological requirements of the organism. All blood cells originate from a population of relatively few haematopoietic stem cells residing in the bone marrow, which give rise to specific progenitors through different lineages. Steady-state dynamics are governed by cell division and commitment rates as well as by population sizes, while feedback components guarantee the restoration of steady-state conditions. In this study, all parameters governing these processes were estimated in a computational model to describe the haematopoietic hierarchy in adult mice. The model consisted of ordinary differential equations and included negative feedback regulation. A combination of literature data, a novel divide et impera approach for steady-state calculations and stochastic optimization allowed one to reduce possible configurations of the system. The model was able to recapitulate the fundamental steady-state features of haematopoiesis and simulate the re-establishment of steady-state conditions after haemorrhage and bone marrow transplantation. This computational approach to the haematopoietic system is novel and provides insight into the dynamics and the nature of possible solutions, with potential applications in both fundamental and clinical research.

Avdelning/ar

  • Computational Biology and Biological Physics - Has been reorganised
  • Avdelningen för molekylär hematologi
  • StemTherapy: National Initiative on Stem Cells for Regenerative Therapy

Publiceringsår

2013

Språk

Engelska

Publikation/Tidskrift/Serie

Journal of the Royal Society Interface

Volym

10

Avvikelse

80

Dokumenttyp

Artikel i tidskrift

Förlag

The Royal Society of Canada

Ämne

  • Cell and Molecular Biology

Aktiv

Published

ISBN/ISSN/Övrigt

  • ISSN: 1742-5662