4.7 Article

Photodynamic Oncotherapy Mediated by Gonadotropin-Releasing Hormone Receptors

Journal

JOURNAL OF MEDICINAL CHEMISTRY
Volume 60, Issue 20, Pages 8667-8672

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/acs.jmedchem.7b01216

Keywords

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Funding

  1. National Natural Science Foundation of China [21708043, 81572944, U1405229]
  2. CAS/SAFEA International Partnership Program for Creative Research Teams
  3. Scientific Equipment Development Project of the CAS [XDA09030307]
  4. CAS Cross-Disciplinary & Collaborative Research Team Program

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Here, we report photodynamic oncotherapies mediated by gonadotropin-releasing hormone (GnRH) receptors. We synthesized conjugates 1 and 2 by coupling zinc phthalocyanine (ZnPc) to GnRH analogues. Compared to unmodified ZnPc, conjugates 1 and 2 exhibited higher and more specific phototoxicities to breast cancer cells. Furthermore, the two conjugates demonstrated excellent antitumor efficacies in a breast cancer-grafted animal model. Biodistribution study suggested the high biosafety of conjugate 2 because of the low retention in brain and skin.

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