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Related Concept Videos

Tumor Immunotherapy01:27

Tumor Immunotherapy

577
Immunotherapy is a treatment that boosts or manipulates the immune system to fight diseases, including cancer. For instance, by stimulating an immune response through vaccinations against viruses that cause cancers, like hepatitis B virus and human papillomavirus, these diseases can be prevented. Nonetheless, some cancer cells can avoid the immune system due to their rapid mutation and division. The immune response to many cancers involves three phases: elimination, equilibrium, and escape.
577
Cancer Vaccines01:30

Cancer Vaccines

437
Cancer treatment vaccines are a rapidly evolving field that offers a promising approach to immunotherapy. Unlike traditional vaccines that prevent diseases, cancer treatment vaccines are designed to treat existing cancers by stimulating the immune system to recognize and attack cancer cells.
Cancer vaccines come in two categories: preventive (prophylactic) and treatment (active). Preventive vaccines, such as the Human Papillomavirus (HPV) vaccine, protect against viruses that cause certain...
437

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Related Experiment Video

Updated: Jul 28, 2025

Generation of a Novel Dendritic-cell Vaccine Using Melanoma and Squamous Cancer Stem Cells
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Liquid Metal Nanoplatform Based Autologous Cancer Vaccines.

Dawei Wang1,2, Zhongyang Yu3,4, Yuxia Qi3,4

  • 1Liquid Metal and Cryogenic Biomedical Research Center, Beijing Key Lab of CryoBiomedical Engineering and Key Lab of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China.

ACS Nano
|May 30, 2023
PubMed
Summary

A novel gallium-based liquid metal nanoplatform creates personalized in situ cancer vaccines. This approach destroys tumors, enhances antigen presentation to dendritic cells, and stimulates systemic immunity to fight cancer effectively.

Keywords:
anti-PD-L1cancer vaccinesimmunotherapiesliquid metalsphotothermal/photodynamic therapies

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Area of Science:

  • Biomaterials Science
  • Immunology
  • Nanotechnology

Background:

  • Therapeutic cancer vaccines face challenges like tumor heterogeneity and immunosuppression.
  • Personalized cancer vaccines require efficient antigen capture and immune stimulation.
  • Existing strategies struggle with antigen utilization and the tumor microenvironment.

Purpose of the Study:

  • To develop a multipotent gallium-based liquid metal (LM) nanoplatform for personalized in situ cancer vaccines (ISCVs).
  • To enhance antigen capture, utilization, and dendritic cell (DC) activation for improved immunotherapy.
  • To establish a self-amplifying antitumor immunity feedback loop for effective tumor elimination.

Main Methods:

  • Utilizing a liquid metal (LM) nanoplatform for photothermal/photodynamic tumor destruction to generate autologous antigens.
  • Employing the LM nanoplatform for antigen capture, transport to dendritic cells (DCs), and endo/lysosomal escape.
  • Combining the LM nanoplatform with immune checkpoint blockade (anti-PD-L1) to modulate the tumor microenvironment.

Main Results:

  • The LM nanoplatform effectively destroyed orthotopic tumors, generating diverse autologous antigens.
  • Enhanced DC uptake, antigen utilization, and DC activation were observed.
  • Systemic antitumor immunity was boosted, leading to tumor elimination, inhibition of metastasis, and relapse prevention.
  • Combination therapy established a positive tumoricidal immunity feedback loop.

Conclusions:

  • A multipotent LM nanoplatform shows significant potential for personalized ISCVs.
  • This strategy effectively overcomes key hurdles in current cancer vaccine development.
  • The study opens new avenues for LM-based immunostimulatory biomaterials in precision immunotherapy.