A deep-learning model for predicting tyrosine kinase inhibitor response from histology in gastrointestinal stromal

Xue Kong1,2, Jun Shi3, Dongdong Sun4

  • 1Department of Pathology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of PR China, Hefei, PR China.

The Journal of Pathology
|February 14, 2025
PubMed

Insights

A new artificial intelligence deep-learning model analyzes histology slides to predict gastrointestinal stromal tumor (GIST) treatment response. This AI approach shows promise for predicting response to tyrosine kinase inhibitor (TKI) therapies, potentially improving patient outcomes.

Area of Science:

  • Computational pathology
  • Artificial intelligence in oncology
  • Gastrointestinal stromal tumors (GIST) research

Background:

  • Over 90% of GISTs have KIT or PDGFRA mutations, guiding tyrosine kinase inhibitor (TKI) therapy.
  • Current genetic sequencing for mutation testing is costly, time-consuming, and prone to preanalytical errors.
  • NCCN guidelines recommend mutation testing for TKI therapy selection in GIST patients.

Purpose of the Study:

  • To develop and validate an artificial intelligence (AI)-based deep-learning (DL) model for predicting TKI treatment response in GIST.
  • To analyze digitized hematoxylin and eosin (H&E) stained histological sections using convolutional neural networks (CNNs).
  • To assess the model's ability to predict response to imatinib and avapritinib in GIST patients.

Main Methods:

  • Development of a deep-learning (DL) model utilizing convolutional neural networks (CNNs).
  • Analysis of digitized H&E stained histological sections of GIST tumor samples.
  • Independent testing set validation for predicting imatinib and avapritinib response, including dose-adjustment and wildtype cases.

Main Results:

  • The DL model achieved high predictive performance, with case-level AUCs of 0.902 for imatinib sensitivity and 0.958 for avapritinib sensitivity.
  • Slide-level AUCs demonstrated strong predictive capabilities, reaching 0.922 for avapritinib-sensitive cases.
  • The DL model showed comparable or superior prediction accuracy to sequencing-based screening for TKI response and significantly higher accuracy for predicting nonresponse.

Conclusions:

  • The developed DL model effectively predicts TKI treatment response in GIST patients using histological image analysis.
  • This AI-driven approach offers a potentially faster, more cost-effective alternative to genetic sequencing for treatment selection.
  • Histology-based DL analysis holds significant potential for improving personalized treatment strategies in GIST management.

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