Growth-promoting effects of acidic and basic fibroblast growth factor on rabbit articular chondrocytes aging in culture

Rabbit articular chondrocytes have a limited growth potential in vitro. After four passages in culture, chondrocytes have accomplished more than 50% of their life span. At this stage of culture, they are considered to be senescent-like, since a dramatic decrease in proliferative capacity and enhance...

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Veröffentlicht in:Experimental cell research 1989-08, Vol.183 (2), p.388-398
Hauptverfasser: Froger-Gaillard, B., Charrier, A.M., Thenet, S., Ronot, X., Adolphe, M.
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container_end_page 398
container_issue 2
container_start_page 388
container_title Experimental cell research
container_volume 183
creator Froger-Gaillard, B.
Charrier, A.M.
Thenet, S.
Ronot, X.
Adolphe, M.
description Rabbit articular chondrocytes have a limited growth potential in vitro. After four passages in culture, chondrocytes have accomplished more than 50% of their life span. At this stage of culture, they are considered to be senescent-like, since a dramatic decrease in proliferative capacity and enhanced cell size and protein content are observed. These aged cells are, however, still able to respond to fibroblast growth factor (FGF). The addition of either acidic or basic FGF (10 ng/ml) to culture medium permitted an enhanced proliferation. The attenuation of FGF mitogenic activity during aging was not observed for both fractions. Moreover, when treated with acidic or basic FGF, aged chondrocytes had a smaller size and a lower protein content. The acidic FGF was less potent than the basic FGF in delaying the evolution of aged chondrocytes to senescence.
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subjects Animals
Biological and medical sciences
Cartilage, Articular - cytology
Cartilage, Articular - drug effects
Cell Division - drug effects
Cell physiology
Cells, Cultured
Culture Techniques - methods
DNA - biosynthesis
DNA Replication - drug effects
Fibroblast Growth Factors - isolation & purification
Fibroblast Growth Factors - pharmacology
Flow Cytometry
Fundamental and applied biological sciences. Psychology
Molecular and cellular biology
Rabbits
Responses to growth factors, tumor promotors, other factors
Thymidine - metabolism
title Growth-promoting effects of acidic and basic fibroblast growth factor on rabbit articular chondrocytes aging in culture
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