Related Experiment Video
Updated: Dec 24, 2025

Analysis of Human T Cell Activity in an Allogeneic Co-Culture Setting of Pre-Treated Tumor Cells
Published on: March 7, 2025
Future Challenges in Cancer Resistance to Immunotherapy
Marit J van Elsas1, Thorbald van Hall1, Sjoerd H van der Burg1
1Department of Medical Oncology, Oncode Institute, Leiden University Medical Center, 2300RC Leiden, The Netherlands.
Cancer immunotherapies show promise, but acquired resistance causes tumor regrowth. Understanding primary and secondary immune resistance mechanisms is key to improving treatment strategies and patient outcomes.
Area of Science:
- Oncology
- Immunology
- Cancer Research
Background:
- Cancer immunotherapies, such as checkpoint inhibitors, T cell transfer, and vaccines, have demonstrated significant clinical trial responses.
- A growing challenge is immunotherapy-induced acquired resistance, leading to tumor regrowth in some patients.
- Primary resistance mechanisms often limit initial immunotherapy effectiveness.
Purpose of the Study:
- To discuss primary and secondary immune resistance in cancer immunotherapy.
- To identify potential novel mechanisms of immune evasion.
- To propose strategies for overcoming immunotherapy resistance.
Main Methods:
- Review of existing literature on cancer immunotherapy resistance.
- Analysis of mechanisms underlying primary and acquired resistance.
- Discussion of strategies for identifying new immune evasion pathways.
Main Results:
- Acquired resistance mechanisms can mirror primary resistance factors.
- Both intrinsic and extrinsic factors contribute to immunotherapy resistance.
- Further research can uncover new immune evasion strategies.
Conclusions:
- Understanding diverse resistance mechanisms is crucial for advancing cancer immunotherapy.
- Identifying novel immune evasion pathways can lead to improved treatment strategies.
- Enhanced immunotherapy approaches hold the potential for better clinical outcomes in cancer patients.
Related Concept Videos
Tumor Immunotherapy
Treatment Resistant Cancers
Cancer Vaccines
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...
Adaptive Mechanisms in Cancer Cells
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
Cancer Stem Cells and Tumor Maintenance
Cancer stem cells are thought to originate from tissue-specific normal stem cells or progenitor cells. The normal stem cells usually reside in...
Targeted Cancer Therapies
There are several types of targeted therapies against...

