Melanoma Sentinel Node Biopsy and Prediction Models for Relapse and Overall Survival
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Background: To optimise predictive models for sentinal node biopsy (SNB) positivity, relapse and survival, using clinico-pathological characteristics and osteopontin gene expression in primary melanomas.
Methods: A comparison of the clinico-pathological characteristics of SNB positive and negative cases was carried out in 561 melanoma patients. In 199 patients, gene expression in formalin-fixed primary tumours was studied using Illumina's DASL assay. A cross validation approach was used to test prognostic predictive models and receiver operating characteristic curves were produced.
Results: Independent predictors of SNB positivity were Breslow thickness, mitotic count and tumour site. Osteopontin expression best predicted SNB positivity (P=2.4 × 10⁻⁷), remaining significant in multivariable analysis. Osteopontin expression, combined with thickness, mitotic count and site, gave the best area under the curve (AUC) to predict SNB positivity (72.6%). Independent predictors of relapse-free survival were SNB status, thickness, site, ulceration and vessel invasion, whereas only SNB status and thickness predicted overall survival. Using clinico-pathological features (thickness, mitotic count, ulceration, vessel invasion, site, age and sex) gave a better AUC to predict relapse (71.0%) and survival (70.0%) than SNB status alone (57.0, 55.0%). In patients with gene expression data, the SNB status combined with the clinico-pathological features produced the best prediction of relapse (72.7%) and survival (69.0%), which was not increased further with osteopontin expression (72.7, 68.0%).
Conclusion: Use of these models should be tested in other data sets in order to improve predictive and prognostic data for patients.
Manton R, Roshan A BJC Rep. 2024; 2(1):86.
PMID: 39528626 PMC: 11554800. DOI: 10.1038/s44276-024-00110-5.
Temporal Recurrence of Cutaneous Melanoma: Analysis of a Case Series.
Salomao P, Costa Pimenta M, Wainstein A, Drummond-Lage A J Clin Aesthet Dermatol. 2023; 16(12):32-38.
PMID: 38125669 PMC: 10729801.
Huang H, Fu Z, Ji J, Huang J, Long X Front Oncol. 2022; 12:817510.
PMID: 35155254 PMC: 8829564. DOI: 10.3389/fonc.2022.817510.
Moro R, Gonzalez-Ramos J, Martinez-Garcia S, Requena C, Traves V, Manrique-Silva E Acta Derm Venereol. 2020; 100(17):adv00284.
PMID: 32945339 PMC: 9274927. DOI: 10.2340/00015555-3635.
Maurichi A, Miceli R, Eriksson H, Newton-Bishop J, Nsengimana J, Chan M J Clin Oncol. 2020; 38(27):3238-3240.
PMID: 32701413 PMC: 7499609. DOI: 10.1200/JCO.20.01460.