1. Molecular characterization of colorectal cancer related peritoneal metastatic disease.
- Author
-
Lenos KJ, Bach S, Ferreira Moreno L, Ten Hoorn S, Sluiter NR, Bootsma S, Vieira Braga FA, Nijman LE, van den Bosch T, Miedema DM, van Dijk E, Ylstra B, Kulicke R, Davis FP, Stransky N, Smolen GA, Coebergh van den Braak RRJ, IJzermans JNM, Martens JWM, Hallam S, Beggs AD, Kops GJPL, Lansu N, Bastiaenen VP, Klaver CEL, Lecca MC, El Makrini K, Elbers CC, Dings MPG, van Noesel CJM, Kranenburg O, Medema JP, Koster J, Koens L, Punt CJA, Tanis PJ, de Hingh IH, Bijlsma MF, Tuynman JB, and Vermeulen L
- Subjects
- Humans, Peritoneum metabolism, Quality of Life, Colorectal Neoplasms pathology, Neoplasms, Second Primary, Peritoneal Neoplasms genetics, Peritoneal Neoplasms secondary
- Abstract
A significant proportion of colorectal cancer (CRC) patients develop peritoneal metastases (PM) in the course of their disease. PMs are associated with a poor quality of life, significant morbidity and dismal disease outcome. To improve care for this patient group, a better understanding of the molecular characteristics of CRC-PM is required. Here we present a comprehensive molecular characterization of a cohort of 52 patients. This reveals that CRC-PM represent a distinct CRC molecular subtype, CMS4, but can be further divided in three separate categories, each presenting with unique features. We uncover that the CMS4-associated structural protein Moesin plays a key role in peritoneal dissemination. Finally, we define specific evolutionary features of CRC-PM which indicate that polyclonal metastatic seeding underlies these lesions. Together our results suggest that CRC-PM should be perceived as a distinct disease entity., (© 2022. The Author(s).)
- Published
- 2022
- Full Text
- View/download PDF