Novel design of NIR-triggered plasmonic nanodots capped mesoporous silica nanoparticles loaded with natural capsaicin to inhibition of metastasis of human papillary thyroid carcinoma B-CPAP cells in thyroid cancer chemo-photothermal therapy.

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2019
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Abstract
In the search for developing a biomedicine based nanomaterial for therapeutic applications, here we described a new benign development of Photo-triggered Gold nanodots capped mesoporous silica nanoparticles Au@MSNs loaded with capsaicin (Cap) for photothermal therapy of cancer cells. Electron microscopic techniques (SEM and TEM) studies depict the anisotropic shape of Cap-Au@MSNs with mean size ≈110 nm. The successful amine functionalization and covalent interaction of Au nanodots on the mesoporous silica surface were confirmed from the results of FTIR, XPS and UV-vis spectral analyses, which directly indicates the composition of synthesized mesoporous silica surface. Additionally, Dynamic Light Scattering (DLS) revealed that synthesized cap-AuMSNs were stable with highly negatively charged. Cap-AuMSNs exhibited extraordinary in vitro antitumor activity against the tested twp thyroid cancer cell lines (i.e., FTC-133 and B-CPAP). 3-(4, 5-Dimethyl-2-thiazolyl)-2, 5-diphenyl-2H tetrazolium bromide (MTT) assay determined that capsaicin and Cap-AuMSNs conferred strong cytotoxicity against the FTC-133 and B-CPAP cell lines. Further, evaluation of the mechanism showed that anticancer activity was achieved by inducing apoptosis in thyroid cancer cells. In addition, we found that such compounds exhibited promising antimetastatic activity and reduced the invasiveness of cancer cells. Hence, we suggesting that these Cap-Au@MSNs can be used as promising candidates for cancer therapy and deserve further investigation.
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Authors Yu, Tianyu;Tong, Lingling;Ao, Yu;Zhang, Genmao;Liu, Yunpeng;Zhang, Hejia;
Journal journal of photochemistry and photobiology b, biology
Year 2019
DOI
S1011-1344(19)30605-0
URL
Keywords Keywords not found

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