It appears you don't have support to open PDFs in this web browser. To view this file, Open with your PDF reader
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 naïve 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.
Tertiary lymphoid structures (TLS) are associated with a reduced risk of cancer recurrence and improved response to immune checkpoint blockade in several tumor types. Here the authors identify L1CAM as a marker for mature TLS and show that the presence of TLS is associated with favorable prognosis in patients with endometrial cancer from the PORTEC-3 trial.
You have requested "on-the-fly" machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Show full disclaimer
Neither ProQuest nor its licensors make any representations or warranties with respect to the translations. The translations are automatically generated "AS IS" and "AS AVAILABLE" and are not retained in our systems. PROQUEST AND ITS LICENSORS SPECIFICALLY DISCLAIM ANY AND ALL EXPRESS OR IMPLIED WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES FOR AVAILABILITY, ACCURACY, TIMELINESS, COMPLETENESS, NON-INFRINGMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Your use of the translations is subject to all use restrictions contained in your Electronic Products License Agreement and by using the translation functionality you agree to forgo any and all claims against ProQuest or its licensors for your use of the translation functionality and any output derived there from. Hide full disclaimer
Details






1 Leiden University Medical Center, Department of Radiation Oncology, Leiden, the Netherlands (GRID:grid.10419.3d) (ISNI:0000000089452978)
2 University Medical Center Groningen, Department of Gynaecologic Oncology, Groningen, the Netherlands (GRID:grid.4494.d) (ISNI:0000 0000 9558 4598)
3 University Hospital Zurich, University of Zurich, Department of Pathology and Molecular Pathology, Zurich, Switzerland (GRID:grid.7400.3) (ISNI:0000 0004 1937 0650)
4 University of Oxford, Wellcome Centre for Human Genetics, Oxford, United Kingdom (GRID:grid.4991.5) (ISNI:0000 0004 1936 8948); Oxford University Hospitals NHS Foundation Trust, Oxford NIHR Comprehensive Biomedical Research Centre, Oxford, United Kingdom (GRID:grid.410556.3) (ISNI:0000 0001 0440 1440)
5 Leiden University Medical Center, Department of Pathology, Leiden, the Netherlands (GRID:grid.10419.3d) (ISNI:0000000089452978)
6 Leiden University Medical Center, Department of Pathology, Leiden, the Netherlands (GRID:grid.10419.3d) (ISNI:0000000089452978); Leiden University Medical Center, Department Surgery, Leiden, the Netherlands (GRID:grid.10419.3d) (ISNI:0000000089452978)
7 Erasmus MC Cancer Institute, Department of Radiotherapy, Rotterdam, the Netherlands (GRID:grid.508717.c) (ISNI:0000 0004 0637 3764)
8 Barts Health NHS Trust, Department of Clinical Oncology, London, United Kingdom (GRID:grid.139534.9) (ISNI:0000 0001 0372 5777)
9 Peter MacCallum Cancer Centre, Department of Medical Oncology, Melbourne, Australia (GRID:grid.1055.1) (ISNI:0000000403978434)
10 Sunnybrook Odette Cancer Centre, Division of Medical Oncology and Hematology, Toronto, Canada (GRID:grid.413104.3) (ISNI:0000 0000 9743 1587)
11 Gustave Roussy, Department of Medical Oncology, Villejuif, France (GRID:grid.14925.3b) (ISNI:0000 0001 2284 9388)
12 Barts Health NHS Trust, Department of Pathology, London, United Kingdom (GRID:grid.139534.9) (ISNI:0000 0001 0372 5777)
13 University Medical Center Utrecht, Department of Radiation Oncology, Utrecht, the Netherlands (GRID:grid.7692.a) (ISNI:0000000090126352)
14 University Hospital Zurich, University of Zurich, Department of Pathology and Molecular Pathology, Zurich, Switzerland (GRID:grid.7400.3) (ISNI:0000 0004 1937 0650); University of Oxford, Department of Oncology and Nuffield Department of Medicine, Oxford, United Kingdom (GRID:grid.4991.5) (ISNI:0000 0004 1936 8948)