Title : Activation of JNK and PAK2 is essential for citrinin-induced apoptosis in a human osteoblast cell line.

Pub. Date : 2009 Aug

PMID : 18767140






8 Functional Relationships(s)
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1 Activation of JNK and PAK2 is essential for citrinin-induced apoptosis in a human osteoblast cell line. Citrinin mitogen-activated protein kinase 8 Homo sapiens
2 CTN induced apoptotic biochemical changes in a human osteoblast cell line, including activation of c-Jun N-terminal kinase (JNK), loss of mitochondrial membrane potential, and caspase-3 and p21-activated protein kinase 2 (PAK2) activation. Citrinin mitogen-activated protein kinase 8 Homo sapiens
3 CTN induced apoptotic biochemical changes in a human osteoblast cell line, including activation of c-Jun N-terminal kinase (JNK), loss of mitochondrial membrane potential, and caspase-3 and p21-activated protein kinase 2 (PAK2) activation. Citrinin mitogen-activated protein kinase 8 Homo sapiens
4 Experiments using a JNK-specific inhibitor, SP600125, and antisense oligonucleotides against JNK reduced CTN-induced activation of both JNK and caspase-3 in osteoblasts, indicating that JNK is required for caspase activation in this apoptotic pathway. Citrinin mitogen-activated protein kinase 8 Homo sapiens
5 Experiments using a JNK-specific inhibitor, SP600125, and antisense oligonucleotides against JNK reduced CTN-induced activation of both JNK and caspase-3 in osteoblasts, indicating that JNK is required for caspase activation in this apoptotic pathway. Citrinin mitogen-activated protein kinase 8 Homo sapiens
6 Experiments using a JNK-specific inhibitor, SP600125, and antisense oligonucleotides against JNK reduced CTN-induced activation of both JNK and caspase-3 in osteoblasts, indicating that JNK is required for caspase activation in this apoptotic pathway. Citrinin mitogen-activated protein kinase 8 Homo sapiens
7 Experiments using a JNK-specific inhibitor, SP600125, and antisense oligonucleotides against JNK reduced CTN-induced activation of both JNK and caspase-3 in osteoblasts, indicating that JNK is required for caspase activation in this apoptotic pathway. Citrinin mitogen-activated protein kinase 8 Homo sapiens
8 On the basis of these results, we propose a signaling cascade model for CTN-induced apoptosis in human osteoblasts involving ROS, JNK, caspases, and PAK2. Citrinin mitogen-activated protein kinase 8 Homo sapiens