X-ray Radiation-Controlled NO-Release for On-Demand Depth-Independent Hypoxic Radiosensitization

Wenpei Fan, Wenbo Bu, Zhen Zhang, Bo Shen, Hui Zhang, Qianjun He, Dalong Ni, Zhaowen Cui, Kuaile Zhao, Jiwen Bu, Jiulin Du, Jianan Liu, Jianlin Shi

Research output: Contribution to journalArticlepeer-review

269 Scopus citations

Abstract

Multifunctional stimuli-responsive nanotheranostic systems are highly desirable for realizing simultaneous biomedical imaging and on-demand therapy with minimized adverse effects. Herein, we present the construction of an intelligent X-ray-controlled NO-releasing upconversion nanotheranostic system (termed as PEG-USMSs-SNO) by engineering UCNPs with S-nitrosothiol (R-SNO)-grafted mesoporous silica. The PEG-USMSs-SNO is designed to respond sensitively to X-ray radiation for breaking down the S-N bond of SNO to release NO, which leads to X-ray dose-controlled NO release for on-demand hypoxic radiosensitization besides upconversion luminescent imaging through UCNPs invitro and invivo. Thanks to the high live-body permeability of X-ray, our developed PEG-USMSs-SNO may provide a new technique for achieving depth-independent controlled NO release and positioned radiotherapy enhancement against deep-seated solid tumors.

Original languageEnglish
Pages (from-to)14026-14030
Number of pages5
JournalAngewandte Chemie - International Edition
Volume54
Issue number47
DOIs
StatePublished - 16 Nov 2015
Externally publishedYes

Keywords

  • NO release
  • X-ray radiation
  • hypoxic radiosensitization
  • luminescent imaging
  • on-demand therapy

Fingerprint

Dive into the research topics of 'X-ray Radiation-Controlled NO-Release for On-Demand Depth-Independent Hypoxic Radiosensitization'. Together they form a unique fingerprint.

Cite this