In vitro ovine articular chondrocyte proliferation: experiments and modelling.

Abstract:

:This study focuses on analysis of in vitro cultures of chondrocytes from ovine articular cartilage. Isolated cells were seeded in Petri dishes, then expanded to confluence and phenotypically characterized by flow cytometry. The sigmoidal temporal profile of total counts was obtained by classic haemocytometry and corresponding cell size distributions were measured electronically using a Coulter Counter. A mathematical model recently proposed (1) was adopted for quantitative interpretation of these experimental data. The model is based on a 1-D (that is, mass-structured), single-staged population balance approach capable of taking into account contact inhibition at confluence. The model's parameters were determined by fitting measured total cell counts and size distributions. Model reliability was verified by predicting cell proliferation counts and corresponding size distributions at culture times longer than those used when tuning the model's parameters. It was found that adoption of cell mass as the intrinsic characteristic of a growing chondrocyte population enables sigmoidal temporal profiles of total counts in the Petri dish, as well as cell size distributions at 'balanced growth', to be adequately predicted.

journal_name

Cell Prolif

journal_title

Cell proliferation

authors

Mancuso L,Liuzzo MI,Fadda S,Pisu M,Cincotti A,Arras M,La Nasa G,Concas A,Cao G

doi

10.1111/j.1365-2184.2010.00676.x

subject

Has Abstract

pub_date

2010-06-01 00:00:00

pages

310-20

issue

3

eissn

0960-7722

issn

1365-2184

pii

CPR676

journal_volume

43

pub_type

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