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DNA conjugated SWCNTs enter endothelial cells via Rac1 mediated macropinocytosis.

ABSTRACT: Several applications of single-walled carbon nanotubes (SWCNT) as nanovectors in biological systems have been reported, and several molecular pathways of cellular entry have been proposed. We employed transmission electron microscopy, confocal fluorescent microscopy, and UV-vis spectroscopic analysis to confirm the internalization of DNA-SWCNT in human umbilical vein endothelial cells. Additionally, by using pharmacological inhibitors as well as genetic approaches, we have found that SWCNT is endocytosed through Rac1- GTPase mediated macropinocytosis in normal endothelial cells.

SUBMITTER: Bhattacharya S

PROVIDER: S-EPMC3324635 | biostudies-literature | 2012 Apr

REPOSITORIES: biostudies-literature

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DNA conjugated SWCNTs enter endothelial cells via Rac1 mediated macropinocytosis.

Bhattacharya Santanu S Roxbury Daniel D Gong Xun X Mukhopadhyay Debabrata D Jagota Anand A

Nano letters 20120306 4

Several applications of single-walled carbon nanotubes (SWCNT) as nanovectors in biological systems have been reported, and several molecular pathways of cellular entry have been proposed. We employed transmission electron microscopy, confocal fluorescent microscopy, and UV-vis spectroscopic analysis to confirm the internalization of DNA-SWCNT in human umbilical vein endothelial cells. Additionally, by using pharmacological inhibitors as well as genetic approaches, we have found that SWCNT is en ...[more]

PMID: 22375622

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