We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Genetic profiles of oligometastatic non-small-cell lung cancer and corresponding brain metastases.
- Authors
Werner, Raphael S; Rechsteiner, Markus; Moch, Holger; Curioni-Fontecedro, Alessandra; Weller, Michael; Weiss, Tobias; Regli, Luca; Rhun, Emilie Le; Mairinger, Fabian; Opitz, Isabelle; Soltermann, Alex
- Abstract
OBJECTIVES In patients with oligometastatic non-small-cell lung cancer (NSCLC), systemic therapy in combination with local ablative treatment of the primary tumour and all metastatic sites is associated with improved prognosis. For patient selection and treatment allocation, further knowledge about the molecular characteristics of the oligometastatic state is necessary. Here, we performed a genetic characterization of primary NSCLC and corresponding brain metastases (BM). METHODS We retrospectively identified patients with oligometastatic NSCLC and synchronous (<3 months) or metachronous (>3 months) BM who underwent surgical resection of both primary tumour and BM. Mutation profiling of formalin-fixed paraffin-embedded tumour cell blocks was performed by targeted next-generation sequencing using the Oncomine Focus Assay panel. RESULTS Sequencing was successful in 46 paired samples. An oncogenic alteration was present in 31 primary tumours (67.4%) and 40 BM (86.9%). The alteration of the primary tumours was preserved in the corresponding BM in 29 out of 31 cases (93.5%). The most prevalent oncogenic driver in both primary tumours and BM was a KRAS (Kirsten rat sarcoma viral oncogene) mutation (s = 21). In 16 patients (34.8%), the BM harboured additional oncogenic alterations. The presence of a private genetic alteration in the BM was an independent predictor of shorter overall survival. CONCLUSIONS In oligometastatic NSCLC, BM retain the main genetic alterations of the primary tumours. Patients may profit from targeted inhibition of mutated KRAS. Additional private genetic alterations in the BM are dismal.
- Subjects
NON-small-cell lung carcinoma; GENETIC profile; BRAIN cancer; METASTATIC breast cancer; PATIENT selection; BRAIN metastasis; NUCLEOTIDE sequencing
- Publication
European Journal of Cardio-Thoracic Surgery, 2024, Vol 65, Issue 6, p1
- ISSN
1010-7940
- Publication type
Article
- DOI
10.1093/ejcts/ezae217