PUBLICATION

Tetrazine-mediated bioorthogonal removal of 3-isocyanopropyl groups enables the controlled release of nitric oxide in vivo

Authors
Wu, J., Sun, T., Yang, C., Lv, T., Bi, Y., Xu, Y., Ling, Y., Zhao, J., Cong, R., Zhang, Y., Wang, J., Wen, H., Jiang, H., Li, F., Huang, Z.
ID
ZDB-PUB-210120-5
Date
2021
Source
Biomaterials science   9(5): 1816-1825 (Journal)
Registered Authors
Keywords
none
MeSH Terms
  • Animals
  • Delayed-Action Preparations
  • Heterocyclic Compounds*
  • Nitric Oxide
  • Prodrugs*
  • Zebrafish
PubMed
33458722 Full text @ Biomater Sci
Abstract
Bond cleavage bioorthogonal chemistry has been widely employed to restore or activate proteins or prodrugs. Nitric oxide (NO), as a free radical molecule, has joined the clinical arena of cancer therapy, since high levels of NO could produce a cancer cell growth inhibitory effect. However, the spatiotemporal controlled release of NO remains a great challenge, and bioorthogonal chemistry may open a new window. Herein, we described a class of O2-3-isocyanopropyl diazeniumdiolates 3a-f as new bioorthogonal NO precursors, which can be effectively uncaged via tetrazine-mediated bond cleavage reactions to liberate NO and acrolein in living cancer cells, exhibiting potent antiproliferative activity. Furthermore, 3a and tetrazine BTZ were respectively encapsulated into two liposomes. It was found that simultaneous administrations of the two liposomes could specifically release large amounts of NO in the implanted cancer cells in zebrafish, thus generating potent tumor suppression activity in vivo. Our findings indicate that the TZ-labile NO precursors could serve to expand the NO-based smart therapeutics and the scope of bioorthogonal chemistry utility in vivo in the near future.
Genes / Markers
Figures
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Antibodies
Orthology
Engineered Foreign Genes
Mapping