Quality assessment of a clinical next-generation sequencing melanoma panel within the Italian Melanoma Intergroup (IMI)

意大利黑色素瘤协作组 (IMI) 内临床下一代测序黑色素瘤小组的质量评估

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作者:Irene Vanni, Milena Casula, Lorenza Pastorino, Antonella Manca, Bruna Dalmasso, Virginia Andreotti, Marina Pisano, Maria Colombino; Italian Association for Cancer Research (AIRC) Study Group; Ulrich Pfeffer, Enrica Teresa Tanda, Carla Rozzo, Panagiotis Paliogiannis, Antonio Cossu, Paola Ghiorzo, Giu

Background

Identification of somatic mutations in key oncogenes in melanoma is important to lead the effective and efficient use of personalized anticancer treatment. Conventional

Conclusion

This study demonstrated that, using the main sequencing platforms currently available in the diagnostic setting, the IMI panel can be adopted among different centers providing comparable results.

Methods

We designed a customized IMI somatic gene panel for targeted sequencing of actionable melanoma mutations; this panel was tested on three different NGS platforms using 11 metastatic melanoma tissue samples in blinded manner between two EMQN quality certificated laboratory.

Results

The detection limit of our assay was set-up to a Variant Allele Frequency (VAF) of 10% with a coverage of at least 200x. All somatic variants detected by all NGS platforms with a VAF ≥ 10%, were also validated by an independent method. The IMI panel achieved a very good concordance among the three NGS platforms.

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