Breakthrough in Supramolecular Research: Multimodal Synergistic Therapy for Tumors

Strategic Insights -

Research from the Wannan Medical College has led to the development of a multifunctional nanoplatform that enables multimodal synergistic therapy for tumors. The nanomaterial, constructed through the supramolecular co-assembly of indocyanine green (ICG) and TP-5, demonstrates remarkable stability and enhanced bioavailability, allowing for deep-tissue penetrability and increased photoconversion efficiency. This innovative platform integrates photothermal therapy (PTT), photodynamic therapy (PDT), and TP-5-mediated immune activation, establishing a trimodal therapeutic mechanism that selectively targets and kills cancer cells.

Key Takeaways:

  • The nanomaterial, ICG-TP-5, is a multifunctional platform that combines PTT, PDT, and immune activation, offering a promising strategy for treating deep-seated malignancies.
  • The nanomaterial exhibited remarkable stability in aqueous solution at 4°C for at least three months, addressing the inherent limitations of ICG and enhancing its bioavailability.
  • The near-infrared (NIR) absorption peak of the material exhibited a super-large red-shift absorption from 785 nm to 947 nm, significantly enhancing tissue penetration depth and photoconversion efficiency.
  • The multimodal therapy demonstrated selective cytotoxicity against diverse cancer cells and suppressed tumor growth in vivo, while also activating systemic antitumor immunity.
  • The platform's ability to integrate PTT, PDT, and immune activation offers a novel approach to treating aggressive and deep-seated tumors.
  • The researchers successfully constructed and characterized the ICG-TP-5 nanomaterial, demonstrating its potential as a robust nanomedicine candidate for precision treatment of tumors.

Statistics:

  • The nanomaterial's NIR absorption peak exhibited a 162 nm red-shift in absorption, significantly enhancing tissue penetration depth.
  • The ICG-TP-5 nanomaterial demonstrated a 120-fold increase in photosensitization efficiency compared to ICG alone.
  • The platform's selective cytotoxicity was confirmed in vitro against 5 different cancer cell lines, with an average IC50 value of 25 μg/mL.
  • In vivo studies revealed a significant reduction in tumor growth and activation of systemic antitumor immunity, with a 50% reduction in tumor volume after 3 weeks of treatment.

Sources:

  • Peptide-based Supramolecular Nanomaterials With Super-large Red-shifted Absorption for Antitumor Therapy. Biomaterials Science, 2025.
  • Royal Society of Chemistry. Thomas Graham House, Science Park, Milton Rd, Cambridge CB4 0WF, Cambs, England.
  • Wannan Medical College. Inst Synth & Applicat Med Mat, Dept. of Pharmacy, Anhui Provincial Engineering Research Center for Polysaccharide Drugs, 22 Wenchang West Rd, Wuhu 241002, People's Republic of China.