Title : Ceramide induces p38 MAPK and JNK activation through a mechanism involving a thioredoxin-interacting protein-mediated pathway.

Pub. Date : 2008 Apr 15

PMID : 18270325






5 Functional Relationships(s)
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1 Ceramide induces p38 MAPK and JNK activation through a mechanism involving a thioredoxin-interacting protein-mediated pathway. Ceramides mitogen-activated protein kinase 8 Homo sapiens
2 Ceramide caused ASK1-regulated p38 mitogen-activated protein kinase (MAPK) and JNK activation, as well as activation of the endoplasmic reticulum (ER) stress cascade, and pharmacologic or siRNA-mediated inhibition of p38 MAPK or JNK partially reduced ceramide-induced mitochondria-mediated apoptosis. Ceramides mitogen-activated protein kinase 8 Homo sapiens
3 Ceramide caused ASK1-regulated p38 mitogen-activated protein kinase (MAPK) and JNK activation, as well as activation of the endoplasmic reticulum (ER) stress cascade, and pharmacologic or siRNA-mediated inhibition of p38 MAPK or JNK partially reduced ceramide-induced mitochondria-mediated apoptosis. Ceramides mitogen-activated protein kinase 8 Homo sapiens
4 Furthermore, ceramide-induced ASK1, p38, and JNK phosphorylation and cell apoptosis were inhibited by Txnip siRNA transfection. Ceramides mitogen-activated protein kinase 8 Homo sapiens
5 Taken together, we show that ceramide exhibits a mechanism of transcriptional regulation involving up-regulation of Txnip expression, also induced by etoposide, which results in ASK1 activation, ER stress, and p38 and JNK phosphorylation, all leading to apoptosis. Ceramides mitogen-activated protein kinase 8 Homo sapiens