Edit ID | Edit Comment | Time | |
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402602 | New Interpretation | 01/22/2019 1:30 PM |
ATM alterations have been reported as germline variants which predispose to inherited cancer syndromes and as somatic (acquired) variants in tumors. ATM is part of many signalling networks, including cell metabolism and growth, oxidative stress, and chromatin remodelling, all of which can affect cancer progression. Although ATM is considered to be a tumour suppressor, ATM signaling may be advantageous to cancer cells in some settings, particularly in resistance to radio- and chemotherapeutic treatment. For this reason, the use of ATM inhibitors in cancer therapy is under exploration.
ATM alterations have been reported as germline variants which predispose to inherited cancer syndromes and as somatic (acquired) variants in tumors. ATM is part of many signalling networks, including cell metabolism and growth, oxidative stress, and chromatin remodelling, all of which can affect cancer progression. Germline ATM mutations are the defining feature of ataxia telangiectasia syndrome. ATM somatic mutations are associated with endometrial, colon, pancreatic, breast cancers, and urothelial cancers. Although ATM is considered to be a tumour suppressor, ATM signaling may be advantageous to cancer cells in some settings, particularly in resistance to radio- and chemotherapeutic treatment. For this reason, the use of ATM inhibitors in cancer therapy is under exploration. Genetic alterations of ATM have been identified in 10% of lung adenocarcinomas. ATM F858L has been identified in the scientific literature, but has not been biochemically characterized and therefore, its effect on ATM protein function is unknown. According to ClinVar, this variant is considered to be a benign/likely benign germline variant (https://preview.ncbi.nlm.nih.gov/clinvar/variation/132736/). Clinical correlation is recommended.