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GraphNovo: Revolutionizing Cancer Treatment With Machine Learning

January 16, 2024
in Science
GraphNovo: Revolutionizing Cancer Treatment With Machine Learning
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Drug Development AI Data Art Concept

The University of Waterloo’s GraphNovo, utilizing machine learning, significantly advances the accuracy of peptide sequencing in cells, offering breakthroughs in personalized cancer treatment and vaccine development. Credit: SciTechDaily.com

The breakthrough in AI could result in the development of highly personalized medicine for treating serious diseases.

Machine learning technology is aiding scientists in examining the composition of unknown cells, potentially leading to personalized medicine for cancer and other serious diseases. 

Researchers at the University of Waterloo developed GraphNovo, a new program that provides a more accurate understanding of the peptide sequences in cells. Peptides are chains of amino acids within cells and are building blocks as important and unique as DNA or RNA. 

Immunotherapy and Peptide Sequencing

In a healthy person, the immune system can correctly identify the peptides of irregular or foreign cells, such as cancer cells or harmful bacteria, and then target those cells for destruction. For people whose immune systems are struggling, the promising field of immunotherapy is working to retrain their immune systems to identify these dangerous invaders. 

“What scientists want to do is sequence those peptides between the normal tissue and the cancerous tissue to recognize the differences,” said Zeping Mao, a Ph.D. candidate in the Cheriton School of Computer Science who developed GraphNovo under the guidance of Dr. Ming Li. 

This sequencing process is particularly difficult for novel illnesses or cancer cells, which may not have been analyzed before. While scientists can draw on an existing peptide database when analyzing diseases or organisms that have previously been studied, each person’s cancer and immune system are unique. 

To quickly build a profile of the peptides in an unfamiliar cell, scientists have been using a method called de novo peptide sequencing, which uses mass spectrometry to rapidly analyze a new sample. This process may leave some peptides incomplete or entirely missing from the sequence. 

GraphNovo: A Leap in Sequencing Accuracy

Utilizing machine learning, GraphNovo significantly enhances the accuracy in identifying peptide sequences by filling these gaps with the precise mass of the peptide sequence. Such a leap in accuracy will likely be immensely beneficial in a variety of medical areas, especially in the treatment of cancer and the creation of vaccines for ailments such as Ebola and COVID-19. The researchers achieved this breakthrough due to Waterloo’s commitment to advances in the interface between technology and health.

“If we don’t have an algorithm that’s good enough, we cannot build the treatments,” Mao said. “Right now, this is all theoretical. But soon, we will be able to use it in the real world.” 

Reference: “Mitigating the missing-fragmentation problem in de novo peptide sequencing with a two-stage graph-based deep learning model” by Zeping Mao, Ruixue Zhang, Lei Xin and Ming Li, 19 October 2023, Nature Machine Intelligence.
DOI: 10.1038/s42256-023-00738-x

>>> Read full article>>>
Copyright for syndicated content belongs to the linked Source : SciTechDaily – https://scitechdaily.com/graphnovo-revolutionizing-cancer-treatment-with-machine-learning/

Tags: GraphNovoRevolutionizingscience
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