Together with the company Tissuegnostics, the pathologist Lukas Kenner and his colleagues have developed a software that is able to identify cancer cells in tissue sections and demonstrate the presence of specific biomarkers on cells. "The recently developed software offers, for the first time, the option of eliminating the so-called inter-observer-variability, which is the systematic variability of judgement among different observers," chief investigators Lukas Kenner and Helmut Dolznig explain.
Software identifies the severity of cancer
The scientists investigated and analyzed 30 liver cell carcinomas, and clearly assigned these to the categories "negative" or "highly positive" with the help of the software. For this purpose the scientists analyzed the expression of specific proteins like Stat5 and JunB, which play an important role in the emergence of cancer. The software utilizes specific algorithms and highly sensitive digital photography, and is able to more clearly depict the matrix of cells and the cell nucleus than the view achieved by the human eye using a microscope.
The image shows cancer tissue, whose variable red staining might have prognostic potential (yellow is healthy tissue and blue cell nuclei). A software can analyse these images more accurately than the human eye.
Changes in cancer cells can be specified more exactly
"We have been using the software in research for several years. The technology will obviously not replace pathologists, but is a supplementary technology that markedly enhances the reliability of the diagnosis," Kenner states. "Cancer therapies are expensive. The new software will help to make a better assessment as to when expensive therapy is justified and also identify those cases in which it is not necessary and the patient can be spared the burden of such treatment."
New tool for "precision medicine"
The so-called "precision medicine", an advancement of personalized medicine, focusses on the health of individuals. With the aid of molecular biology-based methods, the ideal treatment is found for the individual patient.
This type of medicine is especially promising for the treatment of cancer. Tumors differ from person to person. Pathologists investigate tumor tissue on the molecular level and thus establish the most suitable type of therapy. "For instance, cancer cells bear different surface molecules. A suitable drug must target the correct molecule in order to counteract the growth of the tumor," Kenner explains. "Every patient should receive the most suitable therapy. Only such an approach is ethically justifiable and sensible in economic terms."
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|Nature Medicine ran a brief feature in its editorial section on the report by Schlederer et al||173.42 KB|