4.8 Article

An OFF-ON Two-Photon Fluorescent Probe for Tracking Cell Senescence in Vivo

Journal

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 139, Issue 26, Pages 8808-8811

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/jacs.7b04985

Keywords

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Funding

  1. Spanish Government [MAT2015-64139-C4-1-R]
  2. Generalitat Valenciana [PROMETEOII/2014/047]
  3. Spanish Ministry of Economy
  4. Generalitat Valenciana
  5. Spanish Government
  6. La Caixa foundation
  7. CNIO
  8. European Regional Development Fund (SAF project)
  9. European Research Council (ERC)
  10. Botin Foundation
  11. Banco Santander (Santander Universities Global Division)
  12. Ramon y Cajal Programme Senior Grant
  13. RETOS National Programme for Research (MINECO)
  14. Cancer Research UK
  15. CRUK Cambridge Centre Early Detection Programme

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A naphthalimide-based two-photon probe (AHGa) for the detection of cell senescence is designed. The probe contains a naphthalimide core, an L-histidine methyl ester linker, and an acetylated galactose bonded to one of the aromatic nitrogen atoms of the L-histidine through a hydrolyzable N-glycosidic bond. Probe AHGa is transformed into AH in senescent cells resulting in an enhanced fluorescent emission intensity. In vivo detection of senescence is validated in mice bearing tumor xenografts treated with senescence-inducing chemotherapy.

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