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BIOKEY: A single-cell catalogue of the dynamic changes underlying Checkpoint Immunotherapy response in Early Breast Cancer

Checkpoint immunotherapy combined with neoadjuvant chemotherapy improves complete pathologic response in a subset of breast cancer patients. Here, we applied single-cell profiling to tumor biopsies collected before and during anti-PD1 therapy. One-third of tumors exhibited proliferative T-cells expanding along CD8+ or CD4+ lineages, which were either characterized by increased cytotoxicity and exhaustion or improved T-helper function, respectively. Lineage tracing in non-expanding tumors revealed at which point in the lineage T-cells were impaired, while gene expression modeling along these lineages revealed novel genes and underlying transcription factors involved in T-cell expansion. Interestingly, different dendritic and myeloid cell phenotypes could either stimulate or inhibit expanding T-cells, while cell-to-cell communication revealed an integrated immune context highly predictive of T-cell expansion, consisting of immune-stimulatory/-inhibitory interactions between cancer and various immune cell types. Our data yield unprecedented insights into the dynamic changes underlying checkpoint immunotherapy response in breast cancer.

Click on a Dataset ID in the table below to learn more, and to find out who to contact about access to these data

Dataset ID Description Technology Samples
EGAD00001006608 Illumina NovaSeq 6000 84
EGAD00001007056 Illumina HiSeq 4000 29
EGAD00001007057 Illumina HiSeq 4000 30
EGAD00001007058 Illumina HiSeq 4000 Illumina NovaSeq 6000 16
Publications Citations
CIDER: an interpretable meta-clustering framework for single-cell RNA-seq data integration and evaluation.
Genome Biol 22: 2021 337
12
Bulk and Single-Cell Profiling of Breast Tumors Identifies TREM-1 as a Dominant Immune Suppressive Marker Associated With Poor Outcomes.
Front Oncol 11: 2021 734959
10
Neoantigen-specific CD4<sup>+</sup> T cells in human melanoma have diverse differentiation states and correlate with CD8<sup>+</sup> T cell, macrophage, and B cell function.
Cancer Cell 40: 2022 393-409.e9
53
Cancer immunotherapies transition endothelial cells into HEVs that generate TCF1<sup>+</sup> T lymphocyte niches through a feed-forward loop.
Cancer Cell 40: 2022 1600-1618.e10
53
Integrated Analysis of Single-Cell and Bulk RNA-Sequencing Reveals a Tissue-Resident Macrophage-Related Signature for Predicting Immunotherapy Response in Breast Cancer Patients.
Cancers (Basel) 14: 2022 5506
3
The tumor microenvironment and triple-negative breast cancer aggressiveness: shedding light on mechanisms and targeting.
Expert Opin Ther Targets 26: 2022 1041-1056
3
Orthogonal cytokine engineering enables novel synthetic effector states escaping canonical exhaustion in tumor-rejecting CD8<sup>+</sup> T cells.
Nat Immunol 24: 2023 869-883
18
Pan-cancer T cell atlas links a cellular stress response state to immunotherapy resistance.
Nat Med 29: 2023 1550-1562
74
CD25high Effector Regulatory T Cells Hamper Responses to PD-1 Blockade in Triple-Negative Breast Cancer.
Cancer Res 83: 2023 3026-3044
4
Obesity-associated changes in molecular biology of primary breast cancer.
Nat Commun 14: 2023 4418
13
The expression profiles of signature genes from CD103<sup>+</sup>LAG3<sup>+</sup> tumour-infiltrating lymphocyte subsets predict breast cancer survival.
BMC Med 21: 2023 268
4
Performance of tumour microenvironment deconvolution methods in breast cancer using single-cell simulated bulk mixtures.
Nat Commun 14: 2023 5758
11
Supervised discovery of interpretable gene programs from single-cell data.
Nat Biotechnol 42: 2024 1084-1095
17
Sex disparities revealed by single-cell and bulk sequencing and their impacts on the efficacy of immunotherapy in esophageal cancer.
Biol Sex Differ 15: 2024 22
1
A Subpopulation of Luminal Progenitors Secretes Pleiotrophin to Promote Angiogenesis and Metastasis in Inflammatory Breast Cancer.
Cancer Res 84: 2024 1781-1798
1
Unleashing Natural IL18 Activity Using an Anti-IL18BP Blocker Induces Potent Immune Stimulation and Antitumor Effects.
Cancer Immunol Res 12: 2024 687-703
1
C5aR1 inhibition reprograms tumor associated macrophages and reverses PARP inhibitor resistance in breast cancer.
Nat Commun 15: 2024 4485
1
Identification of Hypoxia-ALCAM<sup>high</sup> Macrophage- Exhausted T Cell Axis in Tumor Microenvironment Remodeling for Immunotherapy Resistance.
Adv Sci (Weinh) 11: 2024 e2309885
1
Single-cell resolution characterization of myeloid-derived cell states with implication in cancer outcome.
Nat Commun 15: 2024 5694
2
Deciphering breast cancer dynamics: insights from single-cell and spatial profiling in the multi-omics era.
Biomark Res 12: 2024 107
0
Multiomics and single-cell sequencings reveal the specific biological characteristics of low Ki-67 triple-negative breast cancer.
Cancer Innov 3: 2024 e146
0