Cancer research is increasingly focused on treatments that are more precise and spare healthy cells.
Many new methods show promising results in the laboratory, but only a few prove effective when tested further.
A new study from Oregon State University, published in the scientific journal Advanced Functional Materials, fits into this field and examines how the unique chemistry of cancer cells can be turned against them.
According to the researchers, the approach is not about developing stronger drugs, but about activating processes inside the cancer cells themselves.
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Early research
The work is preclinical, meaning that the experiments were conducted in laboratories and on animals.
Such results cannot be directly transferred to humans.
Experience from cancer research shows that many treatments with promising results in mouse studies are never approved for clinical use.
According to Oregon State University, the research is part of a broader development within nanomedicine, in which very small materials are used to target diseases more precisely.
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A weakness in cancer cells
Cancer cells differ chemically from healthy cells. They often exist in a more acidic environment and contain higher levels of hydrogen peroxide.
According to the study, these conditions can lead to the formation of harmful oxygen species inside the cells, destroying them from within.
Previous methods have struggled to produce a sufficiently strong effect because they activated only one type of these substances at a time.
Experimental results
In the new study, the researchers describe an iron-based nanomaterial that accumulated in tumors during mouse experiments.
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The experiments showed complete regression of breast cancer tumors without visible damage to healthy cells, the researchers report.
The next step is to test the method against other types of cancer, including pancreatic cancer, which is known to be difficult to treat.
Only after that can it be assessed whether the method can be tested in humans.
Sources: SciTechDaily, and Advanced Functional Materials.
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