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Development of a cysteine responsive chlorinated hemicyanine for image-guided dual phototherapy

  • Samira Savani
  • , Kubra Onbasli
  • , Hande Gunduz
  • , Eda Aydındogan
  • , Merve Erkısa
  • , Abdullah Muti
  • , Minahil Khan
  • , Alphan Sennaroglu
  • , Engin Ulukaya
  • , Havva Yagci Acar*
  • , Safacan Kolemen
  • *Corresponding author for this work
  • Koc University
  • Istinye University

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)

Abstract

A cysteine (Cys) activatable chlorinated hemicyanine (Cl-Cys) was introduced as a tumour selective image-guided dual phototherapy agent. Cl-Cys exhibited a significant turn on response in its near-IR emission signal and activated its singlet oxygen generation as well as photothermal conversion potentials upon reacting with Cys. The laser irradiation of Cl-Cys induced significant cell death in cancer cells with high Cys level, while it stayed deactivated and non-emissive in a healthy cell line. A profound synergistic PDT/PTT effect was observed at high doses. Remarkably, Cl-Cys marks the first ever example of Cys-responsive small organic-based therapeutic agent and holds a great promise to develop new activity-based photosensitizers for dual phototherapy action.

Original languageEnglish
Article number105725
JournalBioorganic Chemistry
Volume122
DOIs
Publication statusPublished - May 2022
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2022 Elsevier Inc.

Funding

SK thanks BAGEP award of Science Academy for the financial support. Authors thank Kübra Nur Özvural Sertçelik for the graphical abstract.

Funders
Bilim Akademisi

    UN SDGs

    This output contributes to the following UN Sustainable Development Goals (SDGs)

    1. SDG 3 - Good Health and Well-being
      SDG 3 Good Health and Well-being

    Keywords

    • Cancer
    • Cysteine
    • Hemicyanine
    • Photosensitizers
    • Phototherapy
    • Theranostics

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