no code implementations • 5 Apr 2024 • Patricia Lamirande, Eamonn A. Gaffney, Michael Gertz, Philip K. Maini, Jessica R. Crawshaw, Antonello Caruso
In human eyes, we investigated the impact of variability in vitreous cavity size and eccentricity, and in injection location, on drug elimination.
no code implementations • 9 Feb 2024 • Juan Jiménez-Sánchez, Carmen Ortega-Sabater, Philip K. Maini, Víctor M. Pérez-García, Tommaso Lorenzi
Evolvability is defined as the ability of a population to generate heritable variation to facilitate its adaptation to new environments or selection pressures.
no code implementations • 14 Jan 2024 • Rebecca M. Crossley, Kevin J. Painter, Tommaso Lorenzi, Philip K. Maini, Ruth E. Baker
Comparing a previously studied volume-filling model for a homogeneous population of generalist cells that can proliferate, move and degrade extracellular matrix (ECM) \cite{crossley2023travelling} to a novel model for a heterogeneous population comprising two distinct sub-populations of specialist cells that can either move and degrade ECM or proliferate, this study explores how different hypothetical phenotypic switching mechanisms affect the speed and structure of the invading cell populations.
no code implementations • 25 Sep 2023 • Yaron Ben-Ami, Joe M. Pitt-Francis, Philip K. Maini, Helen M. Byrne
Using velocity-space averaging, we reformulate the model as a system of continuum equations for the spatio-temporal evolution of the cell volume fraction and flux, in response to forcing terms which depend on the local direction and magnitude of the mechanochemical cues.
1 code implementation • 4 Sep 2023 • Yue Liu, Kevin Suh, Philip K. Maini, Daniel J. Cohen, Ruth E. Baker
When employing mechanistic models to study biological phenomena, practical parameter identifiability is important for making accurate predictions across wide range of unseen scenarios, as well as for understanding the underlying mechanisms.
no code implementations • 18 Jul 2023 • Daria Stepanova, Helen M. Byrne, Philip K. Maini, Tomás Alarcón
This review of the theoretical modelling of angiogenesis is the first to focus on the phenomenon of cell mixing during early sprouting.
no code implementations • 26 Feb 2023 • Chloé Colson, Philip K. Maini, Helen M. Byrne
Cancer is a heterogeneous disease and tumours of the same type can differ greatly at the genetic and phenotypic levels.
no code implementations • 22 Feb 2023 • Rebecca M. Crossley, Philip K. Maini, Tommaso Lorenzi, Ruth E. Baker
Many reaction-diffusion models produce travelling wave solutions that can be interpreted as waves of invasion in biological scenarios such as wound healing or tumour growth.
1 code implementation • 16 Sep 2022 • W. Duncan Martinson, Rebecca McLennan, Jessica M. Teddy, Mary C. McKinney, Lance A. Davidson, Ruth E. Baker, Helen M. Byrne, Paul M. Kulesa, Philip K. Maini
Collective cell migration plays an essential role in vertebrate development, yet the extent to which dynamically changing microenvironments influence this phenomenon remains unclear.
1 code implementation • 26 Feb 2022 • Yaron Ben-Ami, George W. Atkinson, Joe M. Pitt-Francis, Philip K. Maini, Helen M. Byrne
We analyse mathematical models in order to understand how microstructural features of vascular networks may affect blood-flow dynamics, and to identify particular characteristics that promote the onset of self-sustained oscillations.
1 code implementation • 6 Jan 2022 • Alexander P. Browning, Thomas D. Lewin, Ruth E. Baker, Philip K. Maini, Eduardo G. Moros, Jimmy Caudell, Helen M. Byrne, Heiko Enderling
Hindering effective use of models in this context is the sparsity of clinical measurements juxtaposed with the model complexity required to produce the full range of possible patient responses.
no code implementations • 1 Dec 2021 • Toshiki Oguma, Hisako Takigawa-Imamura, Tomoyasu Shinoda, Shuntaro Ogura, Akiyoshi Uemura, Takaki Miyata, Philip K. Maini, Takashi Miura
The Delta-Notch system plays a vital role in a number of areas in biology and typically forms a salt and pepper pattern in which cells strongly expressing Delta and cells strongly expressing Notch are alternately aligned via lateral inhibition.
1 code implementation • 15 Oct 2021 • Yue Liu, Philip K. Maini, Ruth E. Baker
In certain biological contexts, such as the plumage patterns of birds and stripes on certain species of fishes, pattern formation takes place behind a so-called "wave of competency".
no code implementations • 7 May 2021 • Daria Stepanova, Helen M. Byrne, Philip K. Maini, Tomás Alarcón
Here we use large deviation theory to decrease the computational cost of a spatially-extended multi-agent stochastic system with a region of multi-stability by coarse-graining it to a continuous time Markov chain on the state space of stable steady states of the original system.