Title of article :
Leukotriene D4 potentiates fibronectin-induced migration of human lung fibroblasts
Author/Authors :
Kato، نويسنده , , Jun and Kohyama، نويسنده , , Tadashi and Okazaki، نويسنده , , Hitoshi and Desaki، نويسنده , , Masashi and Nagase، نويسنده , , Takahide and Rennard، نويسنده , , Stephen I. and Takizawa، نويسنده , , Hajime، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2005
Abstract :
Fibroblasts play an important role in the repair and remodeling processes following injury. Leukotriene D4 (LTD4) is a potent mediator in inflammatory processes, but the direct effect of cysteinyl leukotrienes on fibroblast migration remains unelucidated. In this study, the effect of the LTD4 on normal human lung fibroblasts (NHLF) chemotaxis induced by human plasma fibronectin (HFn) was investigated using the modified Boydenʹs chamber technique. LTD4 potentiated NHLF chemotaxis to HFn in concentration-dependent manner. A specific cysteinyl leukotriene receptor type 1 antagonist, pranlukast inhibited this effect, indicating that LTD4 affected cell migration via its specific receptor. The potentiating effect of LTD4 on fibroblast chemotaxis was completely abolished by pertussis toxin (PTX), suggesting that LTD4-induced effect was dependent on PTX-sensitive Gi/o signaling. These findings suggest that LTD4 has a potential to augment fibroblast chemotaxis, and to contribute to regulation of the wound healing and following remodeling in fibrotic processes of the lung.
Keywords :
Cysteinyl leukotrienes , fibroblast , Migration , Fibrosis , Airway Remodeling
Journal title :
Clinical Immunology
Journal title :
Clinical Immunology