Novel biomarker SARIFA in colorectal cancer: highly prognostic, not genetically driven and histologic indicator of a distinct tumor biology
SARIFA (Stroma AReactive Invasion Front Areas) has recently emerged as a promising histopathological biomarker for colon and gastric cancer. To elucidate the underlying tumor biology, we assessed SARIFA-status in tissue specimens from The-Cancer-Genome-Atlas (TCGA) cohorts COAD (colonic adenocarcino...
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| Hauptverfasser: | , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
22 November 2023
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| In: |
Cancer gene therapy
Year: 2024, Jahrgang: 31, Heft: 2, Pages: 207-216 |
| ISSN: | 1476-5500 |
| DOI: | 10.1038/s41417-023-00695-y |
| Online-Zugang: | Verlag, kostenfrei, Volltext: https://doi.org/10.1038/s41417-023-00695-y Verlag, kostenfrei, Volltext: https://www.nature.com/articles/s41417-023-00695-y 
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| Verfasserangaben: | Nic G. Reitsam, Veselin Grozdanov, Chiara M. L. Löffler, Hannah S. Muti, Bianca Grosser, Jakob N. Kather and Bruno Märkl |
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| 245 | 1 | 0 | |a Novel biomarker SARIFA in colorectal cancer |b highly prognostic, not genetically driven and histologic indicator of a distinct tumor biology |c Nic G. Reitsam, Veselin Grozdanov, Chiara M. L. Löffler, Hannah S. Muti, Bianca Grosser, Jakob N. Kather and Bruno Märkl |
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| 520 | |a SARIFA (Stroma AReactive Invasion Front Areas) has recently emerged as a promising histopathological biomarker for colon and gastric cancer. To elucidate the underlying tumor biology, we assessed SARIFA-status in tissue specimens from The-Cancer-Genome-Atlas (TCGA) cohorts COAD (colonic adenocarcinoma) and READ (rectal adenocarcinoma). For the final analysis, 207 CRC patients could be included, consisting of 69 SARIFA-positive and 138 SARIFA-negative cases. In this external validation cohort, H&E-based SARIFA-positivity was strongly correlated with unfavorable overall, disease-specific, and progression-free survival, partly outperforming conventional prognostic factors. SARIFA-positivity was not associated with known high-risk genetic profiles, such as BRAF V600E mutations or microsatellite-stable status. Transcriptionally, SARIFA-positive CRCs exhibited an overlap with CRC consensus molecular subtypes CMS1 and CMS4, along with distinct differential gene expression patterns, linked to lipid metabolism and increased stromal cell infiltration scores (SIIS). Gene-expression-based drug sensitivity prediction revealed a differential treatment response in SARIFA-positive CRCs. In conclusion, SARIFA represents the H&E-based counterpart of an aggressive tumor biology, demonstrating a partial overlap with CMS1/4 and also adding a further biological layer related to lipid metabolism. Our findings underscore SARIFA-status as an ideal biomarker for refined patient stratification and novel drug developments, particularly given its cost-effective assessment based on routinely available H&E slides. | ||
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