Tertiary lymphoid structures critical for prognosis in endometrial cancer patients
Journal Title
Nature Communications
Publication Type
Research article
Abstract
B-cells play a key role in cancer suppression, particularly when aggregated in tertiary lymphoid structures (TLS). Here, we investigate the role of B-cells and TLS in endometrial cancer (EC). Single cell RNA-sequencing of B-cells shows presence of naive B-cells, cycling/germinal center B-cells and antibody-secreting cells. Differential gene expression analysis shows association of TLS with L1CAM overexpression. Immunohistochemistry and co-immunofluorescence show L1CAM expression in mature TLS, independent of L1CAM expression in the tumor. Using L1CAM as a marker, 378 of the 411 molecularly classified ECs from the PORTEC-3 biobank are evaluated, TLS are found in 19%. L1CAM expressing TLS are most common in mismatch-repair deficient (29/127, 23%) and polymerase-epsilon mutant EC (24/47, 51%). Multivariable Cox regression analysis shows strong favorable prognostic impact of TLS, independent of clinicopathological and molecular factors. Our data suggests a pivotal role of TLS in outcome of EC patients, and establishes L1CAM as a simple biomarker.
Keywords
*Endometrial Neoplasms/pathology; Female; Germinal Center/metabolism; Humans; Immunohistochemistry; *Neural Cell Adhesion Molecule L1; *Tertiary Lymphoid Structures/genetics
Department(s)
Medical Oncology
PubMed ID
35296668
Open Access at Publisher's Site
https://doi.org/10.1038/s41467-022-29040-x
Terms of Use/Rights Notice
Refer to copyright notice on published article.


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