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Serio VB, Palmieri M, Innamorato S, Loberti L, Fallerini C, Ariani F, Antolini E, Covarelli J, Vaghi M, Frullanti E, Renieri A, Pinto AM. Case report: PIK3CA somatic mutation leading to Klippel Trenaunay Syndrome and multiple tumors. Front Genet 2023; 14:1213283. [PMID: 37662840 PMCID: PMC10469863 DOI: 10.3389/fgene.2023.1213283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 07/10/2023] [Indexed: 09/05/2023] Open
Abstract
We report a case of Klippel Trenaunay Syndrome that was monitored both clinically and molecularly over a period of 9 years. A somatic mosaic mutation of PIK3CA (p(E545G)) was identified using both cfDNA NGS liquid biopsy and tissue biopsy. At the age of 56, due to intervening clonal mutations in PIK3CA background, she developed a squamous cell carcinoma in the right affected leg which was treated surgically. Nine years later, lung bilateral adenocarcinoma arose on PIK3CA mutated tissues supported by different clonal mutations. One year later, the patient died from metastases led by a new FGFR3 clone unresponsive to standard-of-care, immunotherapy-based. Our results highlight the presence of a molecular hallmark underlying neoplastic transformation that occurs upon an angiodysplastic process and support the view that PIK3CA mutated tissues must be treated as precancerous lesions. Importantly, they remark the effectiveness of combining cfDNA NGS liquid and tissue biopsies to monitor disease evolution as well as to identify aggressive clones targetable by tailored therapy, which is more efficient than conventional protocols.
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Affiliation(s)
- Viola Bianca Serio
- Medical Genetics, University of Siena, Siena, Italy
- Department of Medical Biotechnologies, Med Biotech Hub and Competence Centre, University of Siena, Siena, Italy
| | - Maria Palmieri
- Department of Medical Biotechnologies, Med Biotech Hub and Competence Centre, University of Siena, Siena, Italy
- Cancer Genomics and Systems Biology Lab, Siena, Italy
| | - Simona Innamorato
- Medical Genetics, University of Siena, Siena, Italy
- Department of Medical Biotechnologies, Med Biotech Hub and Competence Centre, University of Siena, Siena, Italy
| | - Lorenzo Loberti
- Medical Genetics, University of Siena, Siena, Italy
- Department of Medical Biotechnologies, Med Biotech Hub and Competence Centre, University of Siena, Siena, Italy
- Genetica Medica, Azienda Ospedaliera Universitaria Senese, Siena, Italy
| | - Chiara Fallerini
- Medical Genetics, University of Siena, Siena, Italy
- Department of Medical Biotechnologies, Med Biotech Hub and Competence Centre, University of Siena, Siena, Italy
| | - Francesca Ariani
- Medical Genetics, University of Siena, Siena, Italy
- Department of Medical Biotechnologies, Med Biotech Hub and Competence Centre, University of Siena, Siena, Italy
| | - Enrica Antolini
- Medical Genetics, University of Siena, Siena, Italy
- Department of Medical Biotechnologies, Med Biotech Hub and Competence Centre, University of Siena, Siena, Italy
| | - Jasmine Covarelli
- Medical Genetics, University of Siena, Siena, Italy
- Department of Medical Biotechnologies, Med Biotech Hub and Competence Centre, University of Siena, Siena, Italy
| | - Massimo Vaghi
- Radiologia Interventistica, Ospedale Maggiore di Crema, Crema, Italy
- Chirurgia Vascolare, Ospedale Maggiore di Crema, Crema, Italy
| | - Elisa Frullanti
- Department of Medical Biotechnologies, Med Biotech Hub and Competence Centre, University of Siena, Siena, Italy
- Cancer Genomics and Systems Biology Lab, Siena, Italy
| | - Alessandra Renieri
- Medical Genetics, University of Siena, Siena, Italy
- Department of Medical Biotechnologies, Med Biotech Hub and Competence Centre, University of Siena, Siena, Italy
- Genetica Medica, Azienda Ospedaliera Universitaria Senese, Siena, Italy
| | - Anna Maria Pinto
- Genetica Medica, Azienda Ospedaliera Universitaria Senese, Siena, Italy
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Serio VB, Palmieri M, Loberti L, Granata S, Fallerini C, Vaghi M, Renieri A, Pinto AM. Nosological and Theranostic Approach to Vascular Malformation through cfDNA NGS Liquid Biopsy. J Clin Med 2022; 11:jcm11133740. [PMID: 35807022 PMCID: PMC9267326 DOI: 10.3390/jcm11133740] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 06/15/2022] [Accepted: 06/24/2022] [Indexed: 02/06/2023] Open
Abstract
Several different nosological classifications have been used over time for vascular malformations (VMs) since clinical and pathological signs are largely overlapping. In a large proportion of cases, VMs are generated by somatic mosaicism in key genes, belonging to a few different molecular pathways. Therefore, molecular characterization may help in the understanding of the biological mechanisms related to the development of pathology. Tissue biopsy is not routinely included in the diagnostic path because of the need for fresh tissue specimens and the risk of bleeding. Bypassing the need for bioptic samples, we took advantage of the possibility of isolating cell-free DNA likely released by the affected tissues, to molecularly characterize 53 patients by cfDNA-NGS liquid biopsy. We found a good match between the identified variant and the clinical presentation. PIK3CA variants were found in 67% of Klippel Trenaunay Syndrome individuals; KRAS variants in 60% of arteriovenous malformations; MET was mutated in 75% of lymphovenous malformations. Our results demonstrate the power of cfDNA-NGS liquid biopsy in VMs clinical classification, diagnosis, and treatment. Indeed, tailored repurposing of pre-existing cancer drugs, such as PIK3CA, KRAS, and MET inhibitors, can be envisaged as adjuvant treatment, in addition to surgery and/or endovascular treatment, in the above-defined VMs categories, respectively.
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Affiliation(s)
- Viola Bianca Serio
- Medical Genetics Unit, University of Siena, Policlinico “Santa Maria alle Scotte”, Viale Bracci, 2-53100 Siena, Italy; (V.B.S.); (M.P.); (L.L.); (S.G.); (C.F.)
- Med Biotech Hub and Competence Center, Department of Medical Biotechnologies, University of Siena, 2-53100 Siena, Italy
| | - Maria Palmieri
- Medical Genetics Unit, University of Siena, Policlinico “Santa Maria alle Scotte”, Viale Bracci, 2-53100 Siena, Italy; (V.B.S.); (M.P.); (L.L.); (S.G.); (C.F.)
- Med Biotech Hub and Competence Center, Department of Medical Biotechnologies, University of Siena, 2-53100 Siena, Italy
| | - Lorenzo Loberti
- Medical Genetics Unit, University of Siena, Policlinico “Santa Maria alle Scotte”, Viale Bracci, 2-53100 Siena, Italy; (V.B.S.); (M.P.); (L.L.); (S.G.); (C.F.)
- Med Biotech Hub and Competence Center, Department of Medical Biotechnologies, University of Siena, 2-53100 Siena, Italy
- Genetica Medica, Azienda Ospedaliera Universitaria Senese, 2-53100 Siena, Italy;
| | - Stefania Granata
- Medical Genetics Unit, University of Siena, Policlinico “Santa Maria alle Scotte”, Viale Bracci, 2-53100 Siena, Italy; (V.B.S.); (M.P.); (L.L.); (S.G.); (C.F.)
- Med Biotech Hub and Competence Center, Department of Medical Biotechnologies, University of Siena, 2-53100 Siena, Italy
- Genetica Medica, Azienda Ospedaliera Universitaria Senese, 2-53100 Siena, Italy;
| | - Chiara Fallerini
- Medical Genetics Unit, University of Siena, Policlinico “Santa Maria alle Scotte”, Viale Bracci, 2-53100 Siena, Italy; (V.B.S.); (M.P.); (L.L.); (S.G.); (C.F.)
- Med Biotech Hub and Competence Center, Department of Medical Biotechnologies, University of Siena, 2-53100 Siena, Italy
| | - Massimo Vaghi
- Radiologia Interventistica, Ospedale Maggiore di Crema, Largo Ugo Dossena, 2-26013 Crema, Italy;
- Chirurgia Vascolare, Ospedale Maggiore di Crema, Largo Ugo Dossena, 2-26013 Crema, Italy
| | - Alessandra Renieri
- Medical Genetics Unit, University of Siena, Policlinico “Santa Maria alle Scotte”, Viale Bracci, 2-53100 Siena, Italy; (V.B.S.); (M.P.); (L.L.); (S.G.); (C.F.)
- Med Biotech Hub and Competence Center, Department of Medical Biotechnologies, University of Siena, 2-53100 Siena, Italy
- Genetica Medica, Azienda Ospedaliera Universitaria Senese, 2-53100 Siena, Italy;
- Correspondence: ; Tel.: +39-0577-233303; Fax: +39-0577-233325
| | - Anna Maria Pinto
- Genetica Medica, Azienda Ospedaliera Universitaria Senese, 2-53100 Siena, Italy;
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