RT journal article T1 Dynamical properties of feedback signalling in B lymphopoiesis: A mathematical modelling approach. A1 Chulian García, Salvador A1 Martínez Rubio, Álvaro A1 Marciniak-Czochra, Anna A1 Stiehl, Thomas A1 Blázquez, Cristina A1 Rodríguez Gutiérrez, Juan Francisco A1 Ramírez Orellana A1 Castillo Robleda, Ana A1 Pérez-García, Víctor M. A1 Rosa Durán, María A2 Matemáticas K1 Mathematical medicine K1 Haematopoiesis K1 Mathematical modelling K1 Lymphopoiesi AB Haematopoiesis is the process of generation of blood cells. Lymphopoiesis generates lymphocytes, the cells in charge of the adaptive immune response. Disruptions of this process are associated with diseases like leukaemia, which is especially incident in children. The characteristics of self-regulation of this process make them suitable for a mathematical study.In this paper we develop mathematical models of lymphopoiesis using currently available data. We do this by drawing inspiration from existing structured models of cell lineage development and integrating them with paediatric bone marrow data, with special focus on regulatory mechanisms. A formal analysis of the models is carried out, giving steady states and their stability conditions. We use this analysis to obtain biologically relevant regions of the parameter space and to understand the dynamical behaviour of B-cell renovation. Finally, we use numerical simulations to obtain further insight into the influence of proliferation and maturation rates on the reconstitution of the cells in the B line. We conclude that a model including feedback regulation of cell proliferation represents a biologically plausible depiction for B-cell reconstitution in bone marrow. Research into haematological disorders could benefit from a precise dynamical description of B lymphopoiesis. SN 0022-5193 YR 2021 FD 2021 LK http://hdl.handle.net/10498/30919 UL http://hdl.handle.net/10498/30919 LA eng DS Repositorio Institucional de la Universidad de Cádiz RD 10-may-2026