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Vannas C, Escobar M, Österlund T, Andersson D, Mouhanna P, Soomägi A, Molin C, Wennergren D, Fagman H, Ståhlberg A. Treatment Monitoring of a Patient with Synchronous Metastatic Angiosarcoma and Breast Cancer Using ctDNA. Int J Mol Sci 2024; 25:4023. [PMID: 38612833 PMCID: PMC11012383 DOI: 10.3390/ijms25074023] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Revised: 03/29/2024] [Accepted: 04/02/2024] [Indexed: 04/14/2024] Open
Abstract
Angiosarcoma is a rare and aggressive type of soft-tissue sarcoma with high propensity to metastasize. For patients with metastatic angiosarcoma, prognosis is dismal and treatment options are limited. To improve the outcomes, identifying patients with poor treatment response at an earlier stage is imperative, enabling alternative therapy. Consequently, there is a need for improved methods and biomarkers for treatment monitoring. Quantification of circulating tumor-DNA (ctDNA) is a promising approach for patient-specific monitoring of treatment response. In this case report, we demonstrate that quantification of ctDNA using SiMSen-Seq was successfully utilized to monitor a patient with metastatic angiosarcoma. By quantifying ctDNA levels using 25 patient-specific mutations in blood plasma throughout surgery and palliative chemotherapy, we predicted the outcome and monitored the clinical response to treatment. This was accomplished despite the additional complexity of the patient having a synchronous breast cancer. The levels of ctDNA showed a superior correlation to the clinical outcome compared with the radiological evaluations. Our data propose a promising approach for personalized biomarker analysis to monitor treatment in angiosarcomas, with potential applicability to other cancers and for patients with synchronous malignancies.
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Affiliation(s)
- Christoffer Vannas
- Sahlgrenska Center for Cancer Research, Department of Laboratory Medicine, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, 40530 Gothenburg, Sweden; (M.E.); (T.Ö.); (D.A.); (P.M.); (A.S.); (H.F.)
- Department of Oncology, Sahlgrenska University Hospital, Region Västra Götaland, 41345 Gothenburg, Sweden;
| | - Mandy Escobar
- Sahlgrenska Center for Cancer Research, Department of Laboratory Medicine, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, 40530 Gothenburg, Sweden; (M.E.); (T.Ö.); (D.A.); (P.M.); (A.S.); (H.F.)
| | - Tobias Österlund
- Sahlgrenska Center for Cancer Research, Department of Laboratory Medicine, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, 40530 Gothenburg, Sweden; (M.E.); (T.Ö.); (D.A.); (P.M.); (A.S.); (H.F.)
- Department of Clinical Genetics and Genomics, Sahlgrenska University Hospital, Region Västra Götaland, 41345 Gothenburg, Sweden
- Wallenberg Centre for Molecular and Translational Medicine, University of Gothenburg, 40530 Gothenburg, Sweden
| | - Daniel Andersson
- Sahlgrenska Center for Cancer Research, Department of Laboratory Medicine, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, 40530 Gothenburg, Sweden; (M.E.); (T.Ö.); (D.A.); (P.M.); (A.S.); (H.F.)
| | - Pia Mouhanna
- Sahlgrenska Center for Cancer Research, Department of Laboratory Medicine, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, 40530 Gothenburg, Sweden; (M.E.); (T.Ö.); (D.A.); (P.M.); (A.S.); (H.F.)
- Department of Oncology, Ryhov County Hospital, 55185 Jönköping, Sweden
| | - Amanda Soomägi
- Sahlgrenska Center for Cancer Research, Department of Laboratory Medicine, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, 40530 Gothenburg, Sweden; (M.E.); (T.Ö.); (D.A.); (P.M.); (A.S.); (H.F.)
| | - Claes Molin
- Department of Oncology, Sahlgrenska University Hospital, Region Västra Götaland, 41345 Gothenburg, Sweden;
| | - David Wennergren
- Department of Orthopaedics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, 40530 Gothenburg, Sweden;
| | - Henrik Fagman
- Sahlgrenska Center for Cancer Research, Department of Laboratory Medicine, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, 40530 Gothenburg, Sweden; (M.E.); (T.Ö.); (D.A.); (P.M.); (A.S.); (H.F.)
- Department of Clinical Pathology, Sahlgrenska University Hospital, Region Västra Götaland, 41345 Gothenburg, Sweden
| | - Anders Ståhlberg
- Sahlgrenska Center for Cancer Research, Department of Laboratory Medicine, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, 40530 Gothenburg, Sweden; (M.E.); (T.Ö.); (D.A.); (P.M.); (A.S.); (H.F.)
- Department of Clinical Genetics and Genomics, Sahlgrenska University Hospital, Region Västra Götaland, 41345 Gothenburg, Sweden
- Wallenberg Centre for Molecular and Translational Medicine, University of Gothenburg, 40530 Gothenburg, Sweden
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