Related Experiment Video
Updated: Jul 25, 2025
Quantitation of Protein Expression and Co-localization Using Multiplexed Immuno-histochemical Staining and Multispectral Imaging
Published on: April 8, 2016
Prediction of Prostate Cancer Biochemical and Clinical Recurrence Is Improved by IHC-Assisted Grading Using Appl1,
Jessica M Logan1, Ashley M Hopkins2, Carmela Martini1
1Clinical and Health Sciences, University of South Australia, Bradley Building, City West Campus, North Terrace, Adelaide, SA 5000, Australia.
Biomarker-assisted International Society of Urological Pathology (ISUP) grade grouping improves prediction of prostate cancer recurrence compared to standard H&E staining. This enhanced grading offers a more accurate risk assessment for biochemical recurrence (BCR) and clinical recurrence (CR).
Area of Science:
- Urological Pathology
- Oncology
- Biomarker Development
Background:
- Gleason scoring is crucial for prostate cancer risk stratification and treatment decisions.
- Current methods rely on Hematoxylin and Eosin (H&E) staining for International Society of Urological Pathology (ISUP) grade grouping.
- There is a need for improved predictive accuracy in assessing prostate cancer recurrence.
Purpose of the Study:
- To compare the predictive performance of routine H&E versus biomarker-assisted ISUP grade grouping.
- To assess the risk of biochemical recurrence (BCR) and clinical recurrence (CR) in prostate cancer patients.
- To evaluate the utility of immunohistochemistry (IHC) biomarkers (Appl1, Sortilin, Syndecan-1) in refining ISUP grading.
Main Methods:
- Retrospective analysis of 114 prostate cancer patients who underwent radical prostatectomy.
- Samples assessed using standard H&E ISUP grade groups and modified ISUP grade groups incorporating IHC markers.
- Cox proportional hazard models used to associate grading methods with BCR and CR outcomes.
Main Results:
- IHC-assisted ISUP grading demonstrated superior predictive performance for BCR (C-statistic 0.63 vs. 0.59) and CR (C-statistic 0.71 vs. 0.66) compared to H&E grading.
- IHC-assisted ISUP grading was independently associated with both BCR and CR after adjusted analysis.
- The biomarker panel-informed ISUP grading served as an independent predictor for individual BCR and CR events.
Conclusions:
- Biomarker-assisted ISUP grading, utilizing a panel of IHC markers, offers enhanced predictive accuracy for prostate cancer recurrence.
- This approach provides a more precise risk stratification tool than conventional H&E-based grading.
- Further prospective studies are warranted to validate this biomarker technology in diverse clinical settings.
