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Diagnostics Omics, Oncology

By Our Powers Combined…

Inhibitors that target PD-1 and PD-L1 immune checkpoint proteins are an emerging force in oncology thanks to their ability to prevent cancer cells from evading T cell attack. It’s not surprising, then, that a number of PD-(L)1 inhibitors have been approved for cancer treatment since 2014. But though their positive effects can turn the tide for some cancer patients, one thing prevents their wider use – treatment resistance. Could a multimodal approach – one that blends pathology, radiology, and genomics – be the solution to this problem?

Researchers sought to answer this question through a study involving data from 247 advanced non-small cell lung cancer patients with known outcomes between 2014 and 2019 (1). The data were collected from clinical visits and standard-of-care tests including biomedical imaging, histopathology, genomic assays, and, most importantly, PD-L1 expression patterns captured in diagnostic tumor biopsies. Of the patients investigated, 25 percent responded to PD-(L)1 inhibitor treatment – consistent with real-world proportions.

Next, the researchers fed the data to machine learning and analysis tools to compute risk scores for individual patients. The outcome? The predictive ability of the multimodal approach was significantly greater than that of current unimodal standards. The team hopes that these results will encourage others to explore the multimodal method and eventually even apply it to cancers beyond NSCLC. In light of this, the study’s data materials, workflows, and software have been made publicly available to hopefully springboard future research.

Credit: Images sourced from Unsplash.com

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  1. RS Vanguri et al., “Multimodal integration of radiology, pathology and genomics for prediction of response to PD-(L)1 blockade in patients with non-small cell lung cancer,” Nat Cancer, 3, 1151 (2022). PMID: 36038778.
About the Author
George Francis Lee

Associate Editor, The Pathologist

Like most people, I didn’t know exactly what I wanted to do after university. But one thing was certain – writing would play a central role. Not one to walk the path most traveled, I decided to spend my next few years freelancing to hone my skills as a writer and further cement my love for language. Reaching people through writing is important to me and I look forward to connecting with thousands of people through Texere’s passionate audience.

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