BenchRep-T: A Systematic Evaluation of T-Cell Repertoire-Based Disease Diagnostics
- 1Stanford University
Abstract
Adaptive immune receptor repertoire sequencing data has emerged as a promising potential modality for disease diagnosis, relying on computational methods to analyze T-cell receptor (TCR) sequences from an individual's blood sample. Published methods rely on different cohorts, data preprocessing pipelines, and evaluation metrics, making direct comparison across methods challenging. We present BenchRep-T, a unified benchmark that standardizes multiple publicly available TCR repertoire datasets and evaluates nine computational approaches, spanning statistical enrichment of shared sequences, feature-engineered ensembles, deep learning, and sequence clustering. BenchRep-T evaluates methods on four tasks: disease classification across conditions, performance scaling under restricted sequence-sampling depth, recovery of known antigen-specific driver sequences, and evaluation of sensitivity to demographic confounding. Under controlled evaluation, simple baselines prove competitive, with tree-based models trained on V- and J-gene usage and short sequence motifs approaching the classification performance of more complex methods. Our findings underscore the complexity of modeling TCR repertoire data, and show that no single method dominates across all tasks. BenchRep-T provides a framework for rigorous and reproducible evaluation of TCR repertoire classification methods to accelerate the development of immune repertoire-based diagnostics.
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BibTeX
@misc{buendia2026benchrept,
title = {{BenchRep-T: A Systematic Evaluation of T-Cell Repertoire-Based Disease Diagnostics}},
author = {A. Buendia and C. Im and A. Kundaje and S. D. Boyd and L. Cohen-Lavi},
howpublished = {bioRxiv},
year = {2026},
month = jun,
doi = {10.64898/2026.06.09.727013},
url = {https://www.biorxiv.org/content/10.64898/2026.06.09.727013v2},
note = {CC BY-NC},
}
RIS
TY - UNPB
TI - BenchRep-T: A Systematic Evaluation of T-Cell Repertoire-Based Disease Diagnostics
AU - A. Buendia
AU - C. Im
AU - A. Kundaje
AU - S. D. Boyd
AU - L. Cohen-Lavi
PY - 2026
DA - 2026/06/09
PB - bioRxiv
DO - 10.64898/2026.06.09.727013
UR - https://www.biorxiv.org/content/10.64898/2026.06.09.727013v2
AB - Adaptive immune receptor repertoire sequencing data has emerged as a promising potential modality for disease diagnosis, relying on computational methods to analyze T-cell receptor (TCR) sequences from an individual's blood sample. Published methods rely on different cohorts, data preprocessing pipelines, and evaluation metrics, making direct comparison across methods challenging. We present BenchRep-T, a unified benchmark that standardizes multiple publicly available TCR repertoire datasets and evaluates nine computational approaches, spanning statistical enrichment of shared sequences, feature-engineered ensembles, deep learning, and sequence clustering. BenchRep-T evaluates methods on four tasks: disease classification across conditions, performance scaling under restricted sequence-sampling depth, recovery of known antigen-specific driver sequences, and evaluation of sensitivity to demographic confounding. Under controlled evaluation, simple baselines prove competitive, with tree-based models trained on V- and J-gene usage and short sequence motifs approaching the classification performance of more complex methods. Our findings underscore the complexity of modeling TCR repertoire data, and show that no single method dominates across all tasks. BenchRep-T provides a framework for rigorous and reproducible evaluation of TCR repertoire classification methods to accelerate the development of immune repertoire-based diagnostics.
ER -