[The modification of the extracellular matrix synthesized in vitro by human gingival fibroblasts in relation to aging].
Human gingival fibroblast primary cultures were obtained from healthy donors of different ages (20/50/65 years). The synthesis of extracellular matrix was analyzed and the relative protein production was compared either in different cultures at the same passage or in the same culture at following passages. In the first passages of the 3 cultures the protein patterns resulted similar in quantity and quality. However, a quantitative modification in protein synthesis was evident in each culture during the aging process induced in vitro, with a progressive decrease in global protein production, parallel to the increase of the number of culture passages.
Cardelli
P
P
Dipartimento di Medicina Sperimentale, Università degli Studi La Sapienza, Roma.
Zelli
G
G
Bove
E
E
Massari
F
F
Modesti
M
M
Scarpa
S
S
D000328:Adult; D000368:Aged; D000375:Aging / Q000378:metabolism*; D002478:Cells, Cultured / Q000737:chemistry / Q000378:metabolism; D004591:Electrophoresis, Polyacrylamide Gel; D016326:Extracellular Matrix Proteins / Q000032:analysis / Q000096:biosynthesis*; D005260:Female; D005347:Fibroblasts / Q000737:chemistry / Q000378:metabolism; D005881:Gingiva / Q000737:chemistry / Q000378:metabolism*; D006801:Humans; D008875:Middle Aged; D014316:Tritium
D016326:Extracellular Matrix Proteins; D014316:Tritium
Modificazione della matrice extracellulare sintetizzata in vitro da fibroblasti gengivali umani in rapporto all'invecchiamento.