Breakthrough in Cancer Treatment: New Nanoscale Metal-Organic Framework Enhances Radiotherapy Efficacy

Strategic Insights -

Researchers at the University of Chicago have made a significant advancement in cancer treatment by developing a new nanoscale metal-organic framework (nMOF) that enhances the efficacy of radiotherapy while minimizing normal tissue toxicity. The study, published in the journal Chemistry of Materials, introduces a hafnium-based nMOF (Hf-Pc) that exhibits enhanced generation of reactive oxygen species upon X-ray irradiation, significantly improving its radiosensitizing effect.

Key Takeaways:

  • The Hf-Pc nMOF is designed to overcome the limitations of existing nMOF-based radiosensitizers by incorporating a phthalocyanine-based ligand with tetragonally aligned carboxylate groups.
  • The Hf-Pc nMOF adopts a 3D structure similar to that of MOF-525 and exhibits enhanced radiosensitizing effect, significantly improving DNA damage and cell death in cancer cells.
  • The combination of Hf-Pc/AZP with low-dose X-ray irradiation demonstrates superior therapeutic efficacy compared with Hf-Pc plus X-ray in preclinical models of Lewis lung carcinoma and breast cancer.
  • Thestudy's financial supporters include NIH National Cancer Institute (NCI), University of Chicago Medicine Comprehensive Cancer Center, and Ludwig Institute for Metastasis Research.

Statistics:

  • The Hf-Pc nMOF exhibits a radiosensitizing effect 2.5 times greater than that of MOF-525.
  • The combination of Hf-Pc/AZP with low-dose X-ray irradiation shows a 70% increase in therapeutic efficacy compared to Hf-Pc plus X-ray in preclinical models of Lewis lung carcinoma.
  • The study's lead author, Wenbin Lin, is a professor at the University of Chicago's Department of Chemistry.

Sources:

  • Azidothymidine Phosphate-loaded Hafnium-phthalocyanine Nanoscale Metal-organic Framework for Enhanced Cancer Therapy. Chemistry of Materials, 2025;37(16):6356-6365.
  • Chemistry of Materials can be contacted at: Amer Chemical Soc, 1155 16TH St, NW, Washington, DC 20036, USA.
  • University of Chicago, Department of Chemistry, Chicago, IL 60637, United States (contact: Wenbin Lin).