Author/Authors :
Hartmann، نويسنده , , Susanne and Günther، نويسنده , , Nadine and Biehl، نويسنده , , Marlene and Katzer، نويسنده , , Astrid and Kuger، نويسنده , , Sebastian and Worschech، نويسنده , , Eike and Sukhorukov، نويسنده , , Vladimir L. and Krohne، نويسنده , , Georg and Zimmermann، نويسنده , , Heiko and Flentje، نويسنده , , Michael and Djuzenova، نويسنده , , Cholpon S.، نويسنده ,
Abstract :
This study explores the impact of Hsp90 inhibitors NVP-AUY922 and NVP-BEP800 in combination with ionizing radiation (IR) on the migration and invasion of lung carcinoma A549 and glioblastoma SNB19 cells, under normoxia or hypoxia. Independent of oxygen concentration, both drugs decreased the migration and invasion rates of non-irradiated tumor cells. Combined drug-IR treatment under hypoxia inhibited cell invasion to a greater extent than did each treatment alone. Decreased migration of cells correlated with altered expression of several matrix-associated proteins (FAK/p-FAK, Erk2, RhoA) and impaired F-actin modulation. The anti-metastatic efficacy of the Hsp90 inhibitors could be useful in combinational therapies of cancer.
Keywords :
cell adhesion , Hypoxia , Actin remodeling , Cell matrix , Stress fibers , radiation
