作者
Noelia Sánchez-Sánchez, Lorena Riol-Blanco, Gonzalo de la Rosa, Amaya Puig-Kröger, Julio García-Bordas, Daniel Martín, Natividad Longo, Antonio Cuadrado, Carlos Cabanas, Angel L Corbí, Paloma Sánchez-Mateos, José Luis Rodríguez-Fernández
发表日期
2004/8/1
期刊
Blood
卷号
104
期号
3
页码范围
619-625
出版商
American Society of Hematology
简介
Acquisition of CCR7 expression is an important phenotype change during dendritic cell (DC) maturation that endows these cells with the capability to migrate to lymph nodes. We have analyzed the possible role of CCR7 on the regulation of the survival of DCs. Stimulation with CCR7 ligands CCL19 and CCL21 inhibits apoptotic hallmarks of serum-deprived DCs, including membrane phosphatidylserine exposure, loss of mitochondria membrane potential, increased membrane blebs, and nuclear changes. Both chemokines induced a rapid activation of phosphatidylinositol 3′-kinase/Akt1 (PI3K/Akt1), with a prolonged and persistent activation of Akt1. Interference with PI3K, Gi, or G protein βγ subunits abrogated the effects of the chemokines on Akt1 activation and on survival. In contrast, inhibition of extracellular signal-related kinase 1/2 (Erk1/2), p38, or c-Jun N-terminal kinase (JNK) was ineffective. Nuclear …
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N Sánchez-Sánchez, L Riol-Blanco, G de la Rosa… - Blood, 2004