Basic FGF-induced activation of telomerase in rheumatoid synoviocytes.
Rheumatol Int
; 19(4): 123-8, 2000.
Article
en En
| MEDLINE
| ID: mdl-10836521
ABSTRACT
To investigate the mechanism of persistent proliferation of rheumatoid arthritis (RA) synoviocytes in situ, we examined the activity of telomerase enzyme and the expression of telomerase related factors in cultured synoviocytes. Cultured synoviocytes obtained from patients with rheumatoid arthritis (n = 29), osteoarthritis (OA, n = 18), and traumatic joint disease (TJD, n = 4) were examined. Telomerase activity was detected by TRAP (telomeric repeat amplification protocol) assay, and 12 out of 29 samples of synoviocytes (41%) from RA patients showed a positive telomerase activity, whereas none of the samples from OA and TJD patients showed this activity. Results were confirmed by PCR-ELISA. The telomerase activity was enhanced by basic fibroblast growth factor (bFGF). The mRNA expression of telomerase related factors, such as hTERC, TRF2, and TEP-1, showed no difference between RA and OA synoviocytes. Our results suggest that telomerase is activated in rheumatoid synoviocytes, and that bFGF upregulates the activity of this enzyme in RA synoviocytes.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Artritis Reumatoide
/
Membrana Sinovial
/
Factor 2 de Crecimiento de Fibroblastos
/
Telomerasa
Límite:
Humans
/
Middle aged
Idioma:
En
Revista:
Rheumatol Int
Año:
2000
Tipo del documento:
Article
País de afiliación:
Japón