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Oxygenation of human tumors
1Institute of Physiology and Pathophysiology, University of Mainz.
Summary
Human tumors often have poor oxygen supply, leading to nutrient deprivation and a hostile microenvironment. Assessing tumor oxygenation before treatment can personalize therapies for better outcomes.
Area of Science:
- Oncology
- Cancer Biology
- Tumor Microenvironment
Background:
- Oxygen supply and tissue oxygenation are critical determinants of the cellular metabolic microenvironment in human malignancies.
- Understanding these parameters is essential for comprehending tumor behavior and response to therapy.
Purpose of the Study:
- To summarize current knowledge on oxygen supply and tissue oxygenation in human tumors.
- To highlight the impact of oxygenation status on the tumor microenvironment and potential therapeutic strategies.
Main Methods:
- Compilation and review of available experimental data on oxygen supply and tumor tissue oxygenation in human malignancies.
- Analysis of evidence for compromised and anisotropic oxygen supply in tumors.
Main Results:
- Experimental evidence indicates a compromised and anisotropic oxygen supply to many tumor cells in human malignancies.
- Oxygen-depleted areas in tumors correlate with nutrient and energy deprivation, creating a hostile metabolic microenvironment.
- Significant variations in oxygenation parameters exist within tumors, between locations, over time, and among individual patients.
Conclusions:
- Evaluation of individual tumor oxygenation status before therapy is crucial.
- Personalized treatment protocols based on oxygenation status can potentially improve tumor response to treatment.