DENND2B activates Rab13 at the leading edge of migrating cells and promotes metastatic behavior.
DENND2B activates Rab13 at the leading edge of migrating cells and promotes metastatic behavior.
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DOI:
10.1083/jcb.201407068
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发表时间:
2015-03-02
期刊:
影响因子:
--
通讯作者:
McPherson PS
中科院分区:
文献类型:
--
作者:
Ioannou MS;Bell ES;Girard M;Chaineau M;Hamlin JN;Daubaras M;Monast A;Park M;Hodgson L;McPherson PS
DENND2B, in a complex with the Rab13 effector MICAL-L2, activates Rab13 at the cell periphery, promoting the dynamic remodeling of the cell’s leading edge during tumor cell migration both in vitro and in vivo. The small guanosine triphosphatase Rab13 functions in exocytic vesicle trafficking in epithelial cells. Alterations in Rab13 activity have been observed in human cancers, yet the mechanism of Rab13 activation and its role in cancer progression remain unclear. In this paper, we identify the DENN domain protein DENND2B as the guanine nucleotide exchange factor for Rab13 and develop a novel Förster resonance energy transfer–based Rab biosensor to reveal activation of Rab13 by DENND2B at the leading edge of migrating cells. DENND2B interacts with the Rab13 effector MICAL-L2 at the cell periphery, and this interaction is required for the dynamic remodeling of the cell’s leading edge. Disruption of Rab13-mediated trafficking dramatically limits the invasive behavior of epithelial cells in vitro and the growth and migration of highly invasive cancer cells in vivo. Thus, blocking Rab13 activation by DENND2B may provide a novel target to limit the spread of epithelial cancers.
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影响因子:
7.3
作者:
Gao J;Aksoy BA;Dogrusoz U;Dresdner G;Gross B;Sumer SO;Sun Y;Jacobsen A;Sinha R;Larsson E;Cerami E;Sander C;Schultz N
通讯作者:
Schultz N
影响因子:
9.2
作者:
Bravo-Cordero, Jose Javier;Oser, Matthew;Chen, Xiaoming;Eddy, Robert;Hodgson, Louis;Condeelis, John
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Condeelis, John
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4.8
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通讯作者:
Brugge, JS
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4
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通讯作者:
Peranen, Johan
影响因子:
2.7
作者:
Collins, Tony J.
通讯作者:
Collins, Tony J.