Expression of interferons-alpha and -beta, tumor necrosis factor-alpha and transcription factors, IRF-1 and IRF-2, in leukocytes induced during interferon production
Biol. Res
;
28(4): 283-90, 1995.
Article
Dans Anglais
| LILACS
| ID: lil-228573
ABSTRACT
Analysis of gene expression in peripheral blood lymphocytes is of special interest because it could reflect physiological conditions. We have examined the expression and compared the relative amounts of specific mRNAs for interferons (IFN-alpha and IFN-beta), tumor necrosis factor-alpha (TNF-alpha) and interferon regulatory factors (IRF-1 and IRF-2) from interferon primed and Sendai virus induced peripheral blood leukocytes. Results obtained showed that IRF-1 was highly inducible by IFN treatment, IFN-alpha, TNF-alpha and IRF-2 were weakly induced by IFN treatment, and IFN-beta was not inducible by priming the cells with recombinant human IFN-alpha 2b. The IFN-alpha, IFN-beta, IRF-2 and TNF-alpha transcripts increased upon viral infection. The IRF-1 mRNA was rapidly induced by IFN treatment and decreased after Sendai virus infection. Our results show that, in peripheral blood lymphocytes, IFN-alpha and -beta genes have a different response to IFN induction, thus suggesting different regulatory mechanisms for IFN induction of type I IFN genes in peripheral blood lymphocytes
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Indice:
LILAS (Amériques)
Sujet Principal:
Phosphoprotéines
/
Facteurs de transcription
/
Expression des gènes
/
Facteur de nécrose tumorale alpha
/
Interféron bêta
/
Interféron alpha
/
Protéines de liaison à l'ADN
/
Leucocytes
Limites du sujet:
Humains
langue:
Anglais
Texte intégral:
Biol. Res
Thème du journal:
Biologie
Année:
1995
Type:
Article
Pays d'affiliation:
Brésil
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