The browser you are using is not supported by this website. All versions of Internet Explorer are no longer supported, either by us or Microsoft (read more here: https://www.microsoft.com/en-us/microsoft-365/windows/end-of-ie-support).

Please use a modern browser to fully experience our website, such as the newest versions of Edge, Chrome, Firefox or Safari etc.

Default user image.

Carsten Peterson

Expert

Default user image.

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

Author

  • 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.

Department/s

  • Computational Biology and Biological Physics - Has been reorganised
  • Division of Molecular Hematology (DMH)
  • StemTherapy: National Initiative on Stem Cells for Regenerative Therapy

Publishing year

2013

Language

English

Publication/Series

Journal of the Royal Society Interface

Volume

10

Issue

80

Document type

Journal article

Publisher

The Royal Society of Canada

Topic

  • Cell and Molecular Biology

Status

Published

ISBN/ISSN/Other

  • ISSN: 1742-5662