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Attempts to strengthen and simplify the tumor vascular normalization strategy using tumor vessel normalization

Shi Du1, Hui Xiong, Cheng Xu

  • 1State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Stability of Biopharmaceuticals, Department of Pharmaceutics, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China.

Biomaterials Science
|January 17, 2019
PubMed

Insights

This study introduces novel nanomedicine lipid derivative conjugates (LGCs) that enhance tumor vascular normalization and drug delivery. These LGCs simplify treatment by combining anti-angiogenic therapy and chemotherapy, improving outcomes without needing to time the normalization window.

Area of Science:

  • Oncology
  • Nanomedicine
  • Vascular Biology

Background:

  • Tumor vascular normalization therapy offers a rational approach for combining antiangiogenic agents and chemotherapeutics.
  • Clinical application of vascular normalization therapy is hindered by a lack of biomarkers and complex dosing schedules.

Purpose of the Study:

  • To develop a simplified strategy for prompting tumor vascular normalization using nanomedicine.
  • To enhance the efficacy of anti-angiogenic and chemotherapeutic agents through a novel nanoconjugate design.

Main Methods:

  • Development of lipid derivative conjugates (LGCs) incorporating anti-angiogenic agents, low molecular weight heparin (LMWH), and gemcitabine (Gem).
  • Loading of cytotoxic drugs like paclitaxel (PTX) into LGCs to create a multifunctional nanomedicine.
  • Evaluation of the combined anti-VEGF therapy and metronomic chemotherapy (MET) effect within the nanomedicine framework.

Main Results:

  • The developed LGCs effectively prompted tumor vessel normalization.
  • Simultaneous restoration of tumor vasculature and targeted drug delivery were achieved.
  • Improved therapeutic outcomes were observed without the need for precise normalization window timing.

Conclusions:

  • Combining tumor vessel normalization therapy with nanomedicine design offers a potent strategy for cancer treatment.
  • The developed nanomedicine facilitates dual-action therapy, enhancing drug delivery and tumor response.
  • This approach simplifies treatment protocols and improves therapeutic efficacy in solid tumors.

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