| Autor: |
Alberto Puccini, Andreas Seeber, Joanne Xiu, Richard M. Goldberg, Davide Soldato, Axel Grothey, Anthony F. Shields, Mohamed E. Salem, Francesca Battaglin, Martin D. Berger, Wafik S. El-Deiry, Ryuma Tokunaga, Madiha Naseem, Wu Zhang, Sukeshi Patel Arora, Moh’d M. Khushman, Michael J. Hall, Philip A. Philip, John L. Marshall, W. Michael Korn, Heinz-Josef Lenz |
| Jazyk: |
angličtina |
| Rok vydání: |
2021 |
| Předmět: |
|
| Zdroj: |
npj Precision Oncology, Vol 5, Iss 1, Pp 1-8 (2021) |
| Druh dokumentu: |
article |
| ISSN: |
2397-768X |
| DOI: |
10.1038/s41698-021-00230-y |
| Popis: |
Abstract Lymph nodes (LNs) and distant metastases can arise from independent subclones of the primary tumor. Herein, we characterized the molecular landscape and the differences between LNs, distant metastases and primary colorectal cancers (CRCs). Samples were analyzed using next generation sequencing (NGS, MiSeq on 47 genes, NextSeq on 592 genes) and immunohistochemistry. Tumor mutational burden (TMB) was calculated based on somatic nonsynonymous missense mutations, and microsatellite instability (MSI) was evaluated by NGS of known MSI loci. In total, 11,871 samples were examined, comprising primaries (N = 5862), distant (N = 5605) and LNs metastases (N = 404). The most frequently mutated genes in LNs were TP53 (72%), APC (61%), KRAS (39%), ARID1A (20%), PIK3CA (12%). LNs showed a higher mean TMB (13 mut/MB) vs distant metastases (9 mut/MB, p |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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