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Cumulative suppressive index as a predictor of relapse free survival and overall survival in Human Papilloma Virus-negative oral squamous cell carcinomas with negative resection margins.

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Cumulative suppressive index as a predictor of relapse free survival and overall survival in Human Papilloma Virus-negative oral squamous cell carcinomas with negative resection margins.

Head Neck. 2020 Oct 23;:

Authors: Hum L, Bethmann D, Feng Z, Chang SC, Eckert A, Ballesteros-Merino C, Keschke C, Kappler M, Bifulco CB, Wickenhauser C, Seliger B, Fox BA, Bryan Bell R

Abstract
BACKGROUND: This study aimed to analyze margin status and the impact of the immune elements on recurrence in patients with oral squamous cell carcinoma (OSCC), employing a prognostic biomarker, cumulative suppressive index (CSI), which reflects FoxP3+, PD-L1+, and CD8+ cell spatial relationships in the tumor microenvironment.
METHODS: Cox proportional hazards regression was used to evaluate the interactive effect of the margin by CSI discrepancy (high, 3-4 vs low, 0-2) on recurrence free survival (RFS) and overall survival (OS) in 119 patients with stage I to IVA OSCC.
RESULTS: In cases with negative margins, multivariable analysis showed high CSI was significantly associated with worse RFS (HR = 2.59, 95% CI [1.03, 6.49], P = .04) and OS (HR = 5.49, 95% CI [1.48, 20.35], P = .01) compared to low CSI. However, high CSI was not significantly associated with recurrence in cases with positive margins.
CONCLUSIONS: Immune architecture analysis can augment our current histopathological risk assessment of margin status.

PMID: 33094869 [PubMed - as supplied by publisher]

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Medicine by Alexandros G. Sfakianakis,Anapafseos 5 Agios Nikolaos 72100 Crete Greece,00302841026182,00306932607174,alsfakia@gmail.com,

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