Identification of cell types in multiplexed in situ images by combining protein expression and spatial information using CELESTA
Open accessAbstract
Advances in multiplexed in situ imaging are revealing important insights in spatial biology. However, cell type identification remains a major challenge in imaging analysis, with most existing methods involving substantial manual assessment and subjective decisions for thousands of cells. We developed an unsupervised machine learning algorithm, CELESTA, which identifies the cell type of each cell, individually, using the cell's marker expression profile and, when needed, its spatial information. We demonstrate the performance of CELESTA on multiplexed immunofluorescence images of colorectal cancer and head and neck squamous cell carcinoma (HNSCC). Using the cell types identified by CELESTA, we identify tissue architecture associated with lymph node metastasis in HNSCC, and validate our findings in an independent cohort. By coupling our spatial analysis with single-cell RNA-sequencing data on proximal sections of the same specimens, we identify cell-cell crosstalk associated with lymph node metastasis, demonstrating the power of CELESTA to facilitate identification of clinically relevant interactions.
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CELESTA classifies cells based on marker protein expression.
“Cell types were automatically annotated based on marker gene expression using the CELESTA algorithm [34].”
From APOE Christchurch enhances a disease-associated microglial response to plaque but suppresses response to tau pathology (2025) · cites this paper as [34]
The Results (Overview of CELESTA) describe automatic cell-type assignment using marker expression and a cell-type signature matrix. The Extended Data passage identifies the measured markers through image staining, including cytokeratin and CD31. This supports classification based on marker protein expression, but not the citing sentence’s specification of marker gene expression. (LLM, conf=0.87)
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- Authors
- Zhang, W., Li, I., Reticker-Flynn, N. E., Good, Z., Chang, S., Samusik, N., Saumyaa, S., Li, Y., Zhou, X., Liang, R., Kong, C. S., Le, Q.-T., Gentles, A. J., Sunwoo, J. B., Nolan, G. P., Engleman, E. G., & Plevritis, S. K.
- Affiliations
- Stanford Medicine (US)
- Stanford University (US)
- Corresponding author
- Plevritis, Sylvia K.
- ORCID
- Venue
- Nature Methods
- Published
- 2022-06
- Volume
- 19
- Issue
- 6
- Pages
- 759-769
- ISSN
- 1548-7091 (ISSN-L)
- 1548-7105
- PMC
- PMC9728133
- OpenAlex
- W4281733104
- Cited by
- 108
- References
- 4
- Citations by year
- 2026: 15 · 2025: 31 · 2024: 31 · 2023: 25 · 2022: 6
- FWCI
- 7.59
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- Nature Methods (publishedVersion, public-domain)
- PubMed (publishedVersion)
- PubMed Central (acceptedVersion)
- Funders
- U.S. Department of Health & Human Services | NIH | National Cancer Institute (U54 CA209971)
- Parker Institute for Cancer Immunotherapy at San Francisco, CA, USA, and Stanford Cancer Institute, CA, USA
- Tobacco-Related Disease Research Program (T31IP1598)
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Single-cell and spatial transcriptomics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Biophysics › Cell Image Analysis Techniques
- Physical Sciences › Computer Science › Artificial Intelligence › AI in cancer detection
- Keywords
- cell type annotation, celesta, unsupervised learning, protein expression patterns, geospatial data, multiplex immunofluorescence, colorectal cancer, head and neck squamous cell carcinoma, lymph node metastasis, tissue structure, cell-cell crosstalk, single-cell RNA sequencing
- MeSH terms
- Squamous Cell Carcinoma of Head and Neck, Head and Neck Neoplasms, Humans, Lymphatic Metastasis, Cohort Studies
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