New insight into cell receptors opens the way for tailored cancer drugs

cancer
Cancer cell during cell division. Credit: National Institutes of Health

New research on how cancer mutations influence a certain type of receptor on the cell membrane opens the way for the development of tailored drugs for certain cancers, such as rectal cancer and lung cancer. This, according to researchers at Sweden's Karolinska Institutet and Uppsala University, who have been collaborating with researchers in the U.K. and U.S. The results of their work, which concerns a group of G protein-coupled receptors called Class Frizzled (Class F), are published in the journal Nature Communications.

"Class F receptor dysfunction can be linked to different forms of ," says Gunnar Schulte, study leader and professor at Karolinska Institutet's Department of Physiology and Pharmacology. "We can now describe in molecular detail how the receptors are activated and try to find drugs that stop this activation to prevent tumour growth."

The receptors on the are activated by hormones or messenger molecules, which trigger a cascade of processes within. G protein-coupled receptors are among the largest protein families in the body and are an established target for a range of diseases. An important subgroup of G protein-coupled receptors are the so-called Class F receptors, but to date, they have not constituted a therapeutic target to any great extent.

In the present study, the researchers used newly developed methods to compare the mutation frequency of Class F receptors in tumours with the normal population. In linking to receptor function in this way, they may have found new opportunities for mechanism-based drug discovery. The study describes for the first time how regions of the Class F receptor act as a kind of switch for receptor activation, and how mutations in the receptor molecules can drive tumour development.

According to Professor Schulte, there are indications that other diseases, such as fibrosis, can also be linked to Class F receptor dysfunction. The researchers are currently working with the Swedish national research facility SciLifeLab to develop their ideas and explore potential new drugs.

"Drugs targeting receptors in this group have been unspecific," Professor Schulte says. "We hope that it will now be possible to develop more effective drugs that can target individual , drugs for cancers such as rectal, cervical and ."


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More information: Shane C. Wright et al, A conserved molecular switch in Class F receptors regulates receptor activation and pathway selection, Nature Communications (2019). DOI: 10.1038/s41467-019-08630-2
Journal information: Nature Communications

Citation: New insight into cell receptors opens the way for tailored cancer drugs (2019, February 11) retrieved 16 November 2019 from https://medicalxpress.com/news/2019-02-insight-cell-receptors-tailored-cancer.html
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