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. 2023 Oct 23;8(6):101631. doi: 10.1016/j.esmoop.2023.101631
Objectives To describe the role of genomic alterations in the pathogenesis of various neoplasms and to differentiate various types of genomic alterations and their impact in carcinogenesis and management of the disease
To be able to acquire a basic technical knowledge of various genomic tests, used in patients with cancer and their specimen requirements
Key Concepts Demonstrate an understanding of molecular biology (eg, properties of nucleic acid, structure of chromosome, DNA repair process, epigenetic changes, and omics) and basic pathways and signalling networks
Recognise genomic findings that impact classification, prognostication and the treatment of various neoplasms
Recognise that the role of genomic findings in classification of most neoplasms is in combination with morphologic and immunophenotypic findings
Classify tiers of genomic variants, based on the available clinical evidence
Give examples of various publicly available databases for annotation of variants
Distinguish various types of pathogenic variants, including point mutations, rearrangements, and copy number alterations
Demonstrate an understanding of the difference between an oncogene and a tumour suppressor and types of variants, considered pathogenic in each group (activating mutations versus truncating mutations)
Explain how specimens are managed and how pre-analytical variables (eg, fixation, decalcification, contamination) may affect the performance of a molecular assay
Define adequacy of tumour tissue sample for downstream molecular assays
Evaluate critically new genomic technologies considering the downstream costs secondary to genomic analysis for the laboratory and the patient, including the costs associated with new technologies
Evaluate basic tests characteristics, such as analytical sensitivity and specificity, and distinguish them from clinical sensitivity and specificity
Determine the advantage and limitation of the clinical diagnostic test modalities, including cytogenetics, flow cytometry, immunohistochemistry (IHC), fluorescence in situ hybridisation (FISH), reverse transcriptase polymerase chain reaction (RT-PCR), Sanger sequencing, next-generation sequencing (NGS), and gene expression panels
Recognise internal and external quality control parameters of a molecular assay
Recognise that within NGS there is a conceptual distinction between panel sequencing, exome sequencing and genome-wide sequencing
Recognise that there are different types of assays that can be used in a laboratory, namely regulatory-approved assays, laboratory-developed assays with internal evidence for analytical validity and purely research assays
Interpret guidelines/recommendation to refer to for biomarker evaluation
Skills Demonstrate the ability to:
Define genome, exome, metabolome and proteome
Select the appropriate molecular test based on patients' needs
Distinguish various genomic alterations (eg, point mutations, rearrangements, copy number alterations) and their pathogenicity as it relates to specific type of gene and neoplasm
Select appropriate molecular tests based on tumour histology
Recognise the circumstances when germline testing and genetic counselling is required and the appropriate tests
Identify whether an assay requires DNA, RNA, or protein and how that impacts tissue requirements
Predict the analytical sensitivity of an assay and suitability for minimal residual disease testing
Recognise the scope and limitation of an assay (eg, single analyte, versus targeted multiple analyte panel, versus genome-wide assay)
Interpret molecular pathology reports in conjunction with active discussion with pathologists and clinical geneticists whenever needed
Report and contextualise a clinical case within a molecular tumour board