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Palanca-Ballester C, Hervas D, Villalba M, Valdes-Sanchez T, Garcia D, Alcoriza-Balaguer MI, Benet M, Martinez-Tomas R, Briones-Gomez A, Galbis-Caravajal J, Calvo A, Juan O, Lahoz A, Cases E, Sandoval J. Translation of a tissue epigenetic signature to circulating free DNA suggests BCAT1 as a potential noninvasive diagnostic biomarker for lung cancer. Clin Epigenetics 2022; 14:116. [PMID: 36123616 PMCID: PMC9487112 DOI: 10.1186/s13148-022-01334-3] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 09/08/2022] [Indexed: 11/19/2022] Open
Abstract
Lung cancer patients are diagnosed at late stages when curative treatments are no longer possible; thus, molecular biomarkers for noninvasive detection are urgently needed. In this sense, we previously identified and validated an epigenetic 4-gene signature that yielded a high diagnostic performance in tissue and invasive pulmonary fluids. We analyzed DNA methylation levels using the ultrasensitive digital droplet PCR in noninvasive samples in a cohort of 83 patients. We demonstrated that BCAT1 is the candidate that achieves high diagnostic efficacy in circulating DNA derived from plasma (area under the curve: 0.85). Impact of potentially confounding variables was also explored.
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Affiliation(s)
- Cora Palanca-Ballester
- Biomarkers and Precision Medicine Unit, Health Research Institute La Fe, Av. Fernando Abril Martorell, 106, 46026, Valencia, Spain
| | - David Hervas
- Department of Applied Statistics and Operational Research and Quality, Universitat Politècnica de València, Valencia, Spain
| | - Maria Villalba
- CIBERONC, ISCIII, 28029, Madrid, Spain.,IDISNA and Program in Solid Tumors, Center for Applied Medical Research (CIMA) and Department of Pathology, Anatomy and Physiology, School of Medicine, University of Navarra, Pamplona, Spain
| | | | - Diana Garcia
- Epigenomics Unit, Health Research Institute La Fe, Valencia, Spain
| | - Maria Isabel Alcoriza-Balaguer
- Biomarkers and Precision Medicine Unit, Health Research Institute La Fe, Av. Fernando Abril Martorell, 106, 46026, Valencia, Spain
| | - Marta Benet
- Biomarkers and Precision Medicine Unit, Health Research Institute La Fe, Av. Fernando Abril Martorell, 106, 46026, Valencia, Spain
| | | | | | | | - Alfonso Calvo
- CIBERONC, ISCIII, 28029, Madrid, Spain.,IDISNA and Program in Solid Tumors, Center for Applied Medical Research (CIMA) and Department of Pathology, Anatomy and Physiology, School of Medicine, University of Navarra, Pamplona, Spain
| | - Oscar Juan
- Biomarkers and Precision Medicine Unit, Health Research Institute La Fe, Av. Fernando Abril Martorell, 106, 46026, Valencia, Spain
| | - Agustin Lahoz
- Biomarkers and Precision Medicine Unit, Health Research Institute La Fe, Av. Fernando Abril Martorell, 106, 46026, Valencia, Spain
| | - Enrique Cases
- Pneumology Service, University Hospital La Fe, Valencia, Spain
| | - Juan Sandoval
- Biomarkers and Precision Medicine Unit, Health Research Institute La Fe, Av. Fernando Abril Martorell, 106, 46026, Valencia, Spain. .,Epigenomics Unit, Health Research Institute La Fe, Valencia, Spain.
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