Title : Defective signal-transduction pathways in T-cells from autoimmune MRL-lpr/lpr mice are associated with increased polyamine concentrations.

Pub. Date : 1995 Oct 1

PMID : 7575451






12 Functional Relationships(s)
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1 We previously reported that difluoromethylornithine (DFMO), an inhibitor of polyamine biosynthesis, exerted significant beneficial effects on the lifespan and disease expression of MRL-lpr/lpr mice, which spontaneously develop a lupus-like syndrome. Eflornithine Fas (TNF receptor superfamily member 6) Mus musculus
2 We previously reported that difluoromethylornithine (DFMO), an inhibitor of polyamine biosynthesis, exerted significant beneficial effects on the lifespan and disease expression of MRL-lpr/lpr mice, which spontaneously develop a lupus-like syndrome. Eflornithine Fas (TNF receptor superfamily member 6) Mus musculus
3 We previously reported that difluoromethylornithine (DFMO), an inhibitor of polyamine biosynthesis, exerted significant beneficial effects on the lifespan and disease expression of MRL-lpr/lpr mice, which spontaneously develop a lupus-like syndrome. Eflornithine Fas (TNF receptor superfamily member 6) Mus musculus
4 We previously reported that difluoromethylornithine (DFMO), an inhibitor of polyamine biosynthesis, exerted significant beneficial effects on the lifespan and disease expression of MRL-lpr/lpr mice, which spontaneously develop a lupus-like syndrome. Eflornithine Fas (TNF receptor superfamily member 6) Mus musculus
5 Treatment of MRL-lpr/lpr mice with DFMO increased [Ca2+]i to 360 +/- 30 nM (P < 0.05). Eflornithine Fas (TNF receptor superfamily member 6) Mus musculus
6 Treatment of MRL-lpr/lpr mice with DFMO increased [Ca2+]i to 360 +/- 30 nM (P < 0.05). Eflornithine Fas (TNF receptor superfamily member 6) Mus musculus
7 DFMO treatment increased InsP3 levels in concanavalin A-treated MRL-lpr/lpr T-cells to 67%. Eflornithine Fas (TNF receptor superfamily member 6) Mus musculus
8 DFMO treatment increased InsP3 levels in concanavalin A-treated MRL-lpr/lpr T-cells to 67%. Eflornithine Fas (TNF receptor superfamily member 6) Mus musculus
9 DFMO treatment reduced tyrosine phosphorylation of p56lck of MRL-lpr/lpr mice significantly (P < 0.001). Eflornithine Fas (TNF receptor superfamily member 6) Mus musculus
10 DFMO treatment reduced tyrosine phosphorylation of p56lck of MRL-lpr/lpr mice significantly (P < 0.001). Eflornithine Fas (TNF receptor superfamily member 6) Mus musculus
11 These data show that DFMO treatment could alter signal-transduction pathways of splenic T-cells of MRL-lpr/lpr mice. Eflornithine Fas (TNF receptor superfamily member 6) Mus musculus
12 These data show that DFMO treatment could alter signal-transduction pathways of splenic T-cells of MRL-lpr/lpr mice. Eflornithine Fas (TNF receptor superfamily member 6) Mus musculus