The CCL2-CCR2 astrocyte-cancer cell axis in tumor extravasation at the brain.
The CCL2-CCR2 astrocyte-cancer cell axis in tumor extravasation at the brain.
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脑肿瘤外渗中的CCL 2-CCR 2星形胶质细胞-癌细胞轴。
DOI:
10.1126/sciadv.abg8139
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发表时间:
2021-06
期刊:
影响因子:
13.6
通讯作者:
Kamm RD
中科院分区:
文献类型:
--
作者:
Hajal C;Shin Y;Li L;Serrano JC;Jacks T;Kamm RD
Astrocyte-secreted CCL2 promotes cancer cell extravasation at the brain via chemotaxis and chemokinesis. Although brain metastases are common in cancer patients, little is known about the mechanisms of cancer extravasation across the blood-brain barrier (BBB), a key step in the metastatic cascade that regulates the entry of cancer cells into the brain parenchyma. Here, we show, in a three-dimensional in vitro BBB microvascular model, that astrocytes promote cancer cell transmigration via their secretion of C-C motif chemokine ligand 2 (CCL2). We found that this chemokine, produced primarily by astrocytes, promoted the chemotaxis and chemokinesis of cancer cells via their C-C chemokine receptor type 2 (CCR2), with no notable changes in vascular permeability. These findings were validated in vivo, where CCR2-deficient cancer cells exhibited significantly reduced rates of arrest and transmigration in mouse brain capillaries. Our results reveal that the CCL2-CCR2 astrocyte-cancer cell axis plays a fundamental role in extravasation and, consequently, metastasis to the brain.
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作者:
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DOI:
10.1111/j.1552-6569.2012.00767.x
发表时间:
2014-03
期刊:
Journal of neuroimaging : official journal of the American Society of Neuroimaging
影响因子:
--
作者:
Hatzoglou V;Patel GV;Morris MJ;Curtis K;Zhang Z;Shi W;Huse J;Rosenblum M;Holodny AI;Young RJ
通讯作者:
Young RJ