Pericellular hydrogel/nanonets inhibit cancer cells.
Pericellular hydrogel/nanonets inhibit cancer cells.
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周围水凝胶/纳米蛋白抑制癌细胞。
DOI:
10.1002/anie.201402216
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发表时间:
2014-07-28
影响因子:
16.6
通讯作者:
Xu, Bing
中科院分区:
文献类型:
--
作者:
Kuang, Yi;Shi, Junfeng;Li, Jie;Yuan, Dan;Alberti, Kyle A.;Xu, Qiaobing;Xu, Bing
Fibrils formed by proteins are vital components for cells. However, selective formation of xenogenous nanofibrils of small molecules on mammalian cells has yet to be observed. Here we report an unexpected observation of hydrogel/nanonets of a small D-peptide derivative in pericellular space. Surface and secretory phosphatases dephosphorylate a precursor of a hydrogelator to trigger the self-assembly of the hydrogelator and to result in pericellular hydrogel/nanonets selectively around the cancer cells that overexpress phosphatases. Cell based assays confirm that the pericellular hydrogel/nanonets block cellular mass exchange to induce apoptosis of cancer cells, including multidrug-resistance (MDR) cancer cells, MES-SA/Dx5. Pericellular hydrogel/nanonets of small molecules to exhibit distinct functions illustrates a fundamentally new way to engineer molecular assemblies spatiotemporally in cellular microenvironment for inhibiting cancer cell growth and even metastasis.
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影响因子:
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通讯作者:
Parsons, PG
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