1
|
Brandariz L, Arriba M, García JL, Cano JM, Rueda D, Rubio E, Rodríguez Y, Pérez J, Vivas A, Sánchez C, Tapial S, Pena L, García-Arranz M, García-Olmo D, Urioste M, González-Sarmiento R, Perea J. Differential clinicopathological and molecular features within late-onset colorectal cancer according to tumor location. Oncotarget 2018; 9:15302-15311. [PMID: 29632645 PMCID: PMC5880605 DOI: 10.18632/oncotarget.24502] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Accepted: 02/10/2018] [Indexed: 12/12/2022] Open
Abstract
Background Since there is a predilection of some clinical and molecular features for a given tumor location, we assessed whether this can be confirmed in late-onset colorectal cancer (LOCRC). Results Right colon cancers showed features associated with sporadic Microsatellite Instability: predominance of female cases and BRAF mutations, and an important mucinous component. Left colon cancers developed a higher number of polyps and multiple primary CRCs, showed the strongest familial component, and had better prognosis. Rectal cancers showed a predominantly sporadic phenotype, with worse prognosis and a CpG Island Methylator Phenotype (CIMP)-High. No copy number alterations (CNAs) greater than or equal to 50% were observed in this LOCRC group, and the most recurrent alterations were losses at 5q13 and 14q11, and gains at 7q11, 7q21-q22, 19p13-p12, 19q13 and 20p11-q11. KRAS and PIK3CA were the only mutated genes showing differences according to the tumor location, mainly for right colon cancers. Materials and Methods We analyzed clinical and molecular characteristics of LOCRC at different tumor locations in order to determine if there are differential phenotypes related with the location in the colon. Conclusions Categorizing LOCRC according to tumor location appears to be an adequate first step to resolving the heterogeneity of this subset of CRC.
Collapse
Affiliation(s)
- Lorena Brandariz
- Surgery Department, Fundación Jiménez Díaz University Hospital, Madrid, Spain
| | - María Arriba
- Biochemistry Department, Gregorio Marañón University Hospital, Madrid, Spain
| | - Juan Luis García
- Molecular Medicine Unit, Department of Medicine, Biomedical Research Institute of Salamanca (IBSAL), Salamanca, Spain.,Institute of Molecular and Cellular Biology of Cancer (IBMCC), University of Salamanca-SACYL-CSIC, Salamanca, Spain
| | - Juana María Cano
- Oncology Department, Ciudad Real General Hospital, Ciudad Real, Spain
| | - Daniel Rueda
- Molecular Biology Laboratory, "12 de Octubre" Universitary Hospital, Madrid, Spain.,Digestive Cancer Research Group, "12 de Octubre" Research Institute, Madrid, Spain
| | - Eduardo Rubio
- Surgery Department, "12 de Octubre" Universitary Hospital, Madrid, Spain
| | - Yolanda Rodríguez
- Pathology Department, "12 de Octubre" Universitary Hospital, Madrid, Spain
| | - Jessica Pérez
- Molecular Medicine Unit, Department of Medicine, Biomedical Research Institute of Salamanca (IBSAL), Salamanca, Spain.,Institute of Molecular and Cellular Biology of Cancer (IBMCC), University of Salamanca-SACYL-CSIC, Salamanca, Spain
| | - Alfredo Vivas
- Surgery Department, "12 de Octubre" Universitary Hospital, Madrid, Spain
| | - Carmen Sánchez
- Surgery Department, "12 de Octubre" Universitary Hospital, Madrid, Spain
| | - Sandra Tapial
- Digestive Cancer Research Group, "12 de Octubre" Research Institute, Madrid, Spain
| | - Laura Pena
- Familial Cancer Clinical Unit, Spanish National Cancer Centre (CNIO), Madrid, Spain
| | - Mariano García-Arranz
- Health Research Institute, Fundación Jiménez Díaz University Hospital, Madrid, Spain
| | - Damián García-Olmo
- Surgery Department, Fundación Jiménez Díaz University Hospital, Madrid, Spain.,Health Research Institute, Fundación Jiménez Díaz University Hospital, Madrid, Spain
| | - Miguel Urioste
- Familial Cancer Clinical Unit, Spanish National Cancer Centre (CNIO), Madrid, Spain.,Centre for Biomedical Network Research on Rare Diseases (CIBERER), Institute of Health Carlos III, Madrid, Spain
| | - Rogelio González-Sarmiento
- Molecular Medicine Unit, Department of Medicine, Biomedical Research Institute of Salamanca (IBSAL), Salamanca, Spain.,Institute of Molecular and Cellular Biology of Cancer (IBMCC), University of Salamanca-SACYL-CSIC, Salamanca, Spain
| | - José Perea
- Surgery Department, Fundación Jiménez Díaz University Hospital, Madrid, Spain.,Health Research Institute, Fundación Jiménez Díaz University Hospital, Madrid, Spain
| |
Collapse
|