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Skribek M, Brunnström H, Oskarsdottir G, Portu Grivé M, Aricak O, Planck M, Jatta K, Naserhojati H, Haglund de Flon F, Ekman S. Real-world analysis of MET exon 14 mutations in non-small cell lung cancer: a retrospective study from two Swedish hospitals. Acta Oncol 2023; 62:1808-1814. [PMID: 37897706 DOI: 10.1080/0284186x.2023.2269310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 10/04/2023] [Indexed: 10/30/2023]
Abstract
BACKGROUND Real-World evidence on mesenchymal-epithelial transition exon 14 skipping mutations (METex14) in lung cancer remains limited. With an incidence of 3-4% across histological subtypes, METex14 is now an actionable target for MET inhibitors (METi) in advanced lung cancer, demonstrating response rates between 30-70%. Yet, its role in early stages and sensitivity to immune checkpoint inhibitors (ICIs) is still under exploration. MATERIAL AND METHODS We conducted a retrospective analysis of the clinical data of lung cancer patients presenting with METex14 across all stages. These patients were treated at two Swedish University Hospitals: Karolinska and Skåne, between the years 2014 and 2022. RESULTS We identified a total of 63 patients, of which 50 met the inclusion criteria. The median overall survival (OS) with corresponding 95% confidence intervals (95% CI) according to the stage was not reached (NR) for stage I, NR for stage II, 15 months (95% CI, 5.4-24.6) for stage III, and 17 months (95% CI, 9.2-NR) for stage IV. The median OS for stage IV patients who received a METi was 17 months (95% CI, 9.5-NR) vs. 10 months (95% CI, 6.2-NR) in patients without METi (p = 0.92; Hazard Ratio [HR] = 1.07). The median OS for stage IV patients who received ICIs was 18 months (95% CI, 16.5-NR) vs. 6 months (95% CI, 2.5-NR) in patients without ICIs (p = 0.15; HR = 0.47). The median OS for stage IV patients who received chemotherapy was 17 months (95% CI, 9.7-NR) vs. 10 months (95% CI, 4.5-NR) in patients without (p = 0.97; HR = 0.98). CONCLUSIONS Our data suggest limited survival benefits from METi, ICIs, and chemotherapy for METex14 lung cancer patients. While not statistically significant, these findings underscore the need for larger trials for validation. Identifying effective treatments for this challenging lung cancer subtype remains a priority.
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Affiliation(s)
- Marcus Skribek
- Department of Oncology-Pathology, Karolinska Institutet, Stockholm, Sweden
- Thoracic Oncology Center, Theme Cancer, Karolinska University Hospital, Stockholm, Sweden
| | - Hans Brunnström
- Division of Pathology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
- Department of Genetics and Pathology, Laboratory Medicine Region Skåne, Lund, Sweden
| | - Gudrun Oskarsdottir
- Division of Oncology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
- Department of Respiratory Medicine and Allergology, Skåne University Hospital, Lund, Sweden
| | - Mikel Portu Grivé
- Medical Oncology Department, Catalan Institute of Oncology, Barcelona, Spain
| | - Ozan Aricak
- Department of Clinical Pathology and Cancer Diagnostics, Karolinska University Hospital, Stockholm, Sweden
- Department of Laboratory Medicine, Division of Pathology, Karolinska Institutet, Stockholm, Sweden
| | - Maria Planck
- Division of Oncology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
- Department of Respiratory Medicine and Allergology, Skåne University Hospital, Lund, Sweden
| | - Kenbugul Jatta
- Department of Oncology-Pathology, Karolinska Institutet, Stockholm, Sweden
- Department of Clinical Pathology and Cancer Diagnostics, Karolinska University Hospital, Stockholm, Sweden
| | - Homeyra Naserhojati
- Department of Oncology-Pathology, Karolinska Institutet, Stockholm, Sweden
- Department of Clinical Pathology and Cancer Diagnostics, Karolinska University Hospital, Stockholm, Sweden
| | - Felix Haglund de Flon
- Department of Oncology-Pathology, Karolinska Institutet, Stockholm, Sweden
- Department of Clinical Pathology and Cancer Diagnostics, Karolinska University Hospital, Stockholm, Sweden
| | - Simon Ekman
- Department of Oncology-Pathology, Karolinska Institutet, Stockholm, Sweden
- Thoracic Oncology Center, Theme Cancer, Karolinska University Hospital, Stockholm, Sweden
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Isaksson S, Hazem B, Jönsson M, Reuterswärd C, Karlsson A, Griph H, Engleson J, Oskarsdottir G, Öhman R, Holm K, Rosengren F, Annersten K, Jönsson G, Borg Å, Edsjö A, Levéen P, Brunnström H, Lindquist KE, Staaf J, Planck M. Clinical Utility of Targeted Sequencing in Lung Cancer: Experience From an Autonomous Swedish Health Care Center. JTO Clin Res Rep 2020; 1:100013. [PMID: 34589915 PMCID: PMC8474272 DOI: 10.1016/j.jtocrr.2020.100013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 01/23/2020] [Indexed: 12/21/2022] Open
Abstract
OBJECTIVES Mutation analysis by massive parallel sequencing (MPS) is routinely performed in the clinical management of lung cancer in Sweden. We describe the clinical and mutational profiles of lung cancer patients subjected to the first 1.5 years of treatment predictive MPS testing in an autonomous regional health care region. METHODS Tumors from all patients with lung cancer who had an MPS test from January 2015 to June 2016 in the Skåne health care region in Sweden (1.3 million citizens) were included. Six hundred eleven tumors from 599 patients were profiled using targeted sequencing with a 26-gene exon-focused panel. Data on disease patterns and characteristics of the patients subjected to testing were assembled, and correlations between mutational profiles and clinical features were analyzed. RESULTS MPS with the 26-gene panel revealed alterations in 92% of the 611 lung tumors, with the most frequent mutations detected in the nontargetable genes TP53 (62%) and KRAS (37%). Neither KRAS nor TP53 mutations were associated with disease pattern, chemotherapy response, progression-free survival, or overall survival in advanced-stage disease treated with platinum-based doublet chemotherapy as a first-line treatment. Among targetable genes, EGFR driver mutations were detected in 10% of the tumors, and BRAF p.V600 variants in 2.3%. For the 71 never smokers (12%), targetable alterations (EGFR mutations, BRAF p.V600, MET exon 14 skipping, or ALK/ROS1 rearrangement) were detected in 59% of the tumors. CONCLUSION Although the increasing importance of MPS as a predictor of response to targeted therapies is indisputable, its role in prognostics or as a predictor of clinical course in nontargetable advanced stage lung cancer requires further investigation.
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Affiliation(s)
- Sofi Isaksson
- Division of Oncology and Pathology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
| | - Bassam Hazem
- Division of Oncology and Pathology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
| | - Mats Jönsson
- Division of Oncology and Pathology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
| | - Christel Reuterswärd
- Division of Oncology and Pathology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
| | - Anna Karlsson
- Division of Oncology and Pathology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
| | - Håkan Griph
- Department of Respiratory Medicine, Skane University Hospital, Lund, Sweden
| | - Jens Engleson
- Department of Oncology, Skane University Hospital, Lund, Sweden
| | - Gudrun Oskarsdottir
- Division of Oncology and Pathology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
- Department of Respiratory Medicine, Skane University Hospital, Lund, Sweden
| | - Ronny Öhman
- Department of Respiratory Medicine, Skane University Hospital, Lund, Sweden
| | - Karolina Holm
- Division of Oncology and Pathology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
| | - Frida Rosengren
- Division of Oncology and Pathology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
| | - Karin Annersten
- Division of Oncology and Pathology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
| | - Göran Jönsson
- Division of Oncology and Pathology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
| | - Åke Borg
- Division of Oncology and Pathology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
| | - Anders Edsjö
- Department of Pathology, Regional Laboratories Region Skane, Lund, Sweden
| | - Per Levéen
- Department of Pathology, Regional Laboratories Region Skane, Lund, Sweden
| | - Hans Brunnström
- Division of Oncology and Pathology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
- Department of Pathology, Regional Laboratories Region Skane, Lund, Sweden
| | - Kajsa Ericson Lindquist
- Division of Oncology and Pathology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
- Department of Pathology, Regional Laboratories Region Skane, Lund, Sweden
| | - Johan Staaf
- Division of Oncology and Pathology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
| | - Maria Planck
- Division of Oncology and Pathology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
- Department of Respiratory Medicine, Skane University Hospital, Lund, Sweden
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Snively CM, Katzenberger S, Oskarsdottir G, Lauterbach J. Fourier-transform infrared imaging using a rapid-scan spectrometer. Opt Lett 1999; 24:1841-3. [PMID: 18079949 DOI: 10.1364/ol.24.001841] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
We present a major improvement to the Fourier-transform infrared (FTIR) imaging technique brought about by replacement of the commonly used step-scan spectrometer with a rapid-scanning spectrometer. This advancement dramatically decreases the time required for data collection without decreasing the data quality. With this new instrumental setup, an imaging data set consisting of 64x64 spectra with a 4-cm (-1) spectral resolution over a 1360-cm (-1) spectral range can be collected in 34 s. As a practical example, we demonstrate what we believe to be the first application of FTIR imaging to the screening of adsorbates on the elements of a combinatorial library containing different supported catalyst materials in the same reactant feed.
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Gudbjarnason S, Oskarsdottir G. Modification of fatty acid composition of rat heart lipids by feeding cod liver oil. Biochim Biophys Acta 1977; 487:10-5. [PMID: 870052 DOI: 10.1016/0005-2760(77)90039-x] [Citation(s) in RCA: 54] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Modification of the fatty acid composition of cardiac phospholipids and neutral lipids was studied in rats fed a diet containing 10% cod liver oil. The results reflect the dynamic state of esterified fatty acids in neutral lipids and phospholipids of heart muscle. In cardiac neutral lipids there was a moderate but significant increase in exogenous fatty acids, 20:1(n--9), 22:1(n--11), 20:5(n--3) and 22:6(n--3), in animals fed cod liver oil, and a relative decrease in endogenous fatty acids, 16:0, 18:2(n--6 and 20:4(n--6). Increased dietary availability of 22: 6(n--3) resulted in a major increase in the content of this fatty acid in phospholipids and replacement of 18:2(n--6) and 20:4(n--6). The 22:6(n--3) was able to replace one third of 18:2(n--6): further increase in 22: 6n--3) was accompanied by a decrease in 18:0. An inverse relationship between (n--6) and (n--3) polyene fatty acids in cardiac phospholipids suggests a replacement of (n--6) acids by (n--3) fatty acids.
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