PMID- 38137484 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20231225 IS - 2227-9059 (Print) IS - 2227-9059 (Electronic) IS - 2227-9059 (Linking) VI - 11 IP - 12 DP - 2023 Dec 9 TI - Analytic Validation of Optical Genome Mapping in Hematological Malignancies. LID - 10.3390/biomedicines11123263 [doi] LID - 3263 AB - Structural variations (SVs) play a key role in the pathogenicity of hematological malignancies. Standard-of-care (SOC) methods such as karyotyping and fluorescence in situ hybridization (FISH), which have been employed globally for the past three decades, have significant limitations in terms of resolution and the number of recurrent aberrations that can be simultaneously assessed, respectively. Next-generation sequencing (NGS)-based technologies are now widely used to detect clinically significant sequence variants but are limited in their ability to accurately detect SVs. Optical genome mapping (OGM) is an emerging technology enabling the genome-wide detection of all classes of SVs at a significantly higher resolution than karyotyping and FISH. OGM requires neither cultured cells nor amplification of DNA, addressing the limitations of culture and amplification biases. This study reports the clinical validation of OGM as a laboratory-developed test (LDT) according to stringent regulatory (CAP/CLIA) guidelines for genome-wide SV detection in different hematological malignancies. In total, 60 cases with hematological malignancies (of various subtypes), 18 controls, and 2 cancer cell lines were used for this study. Ultra-high-molecular-weight DNA was extracted from the samples, fluorescently labeled, and run on the Bionano Saphyr system. A total of 215 datasets, Inc.luding replicates, were generated, and analyzed successfully. Sample data were then analyzed using either disease-specific or pan-cancer-specific BED files to prioritize calls that are known to be diagnostically or prognostically relevant. Sensitivity, specificity, and reproducibility were 100%, 100%, and 96%, respectively. Following the validation, 14 cases and 10 controls were run and analyzed using OGM at three outside laboratories showing reproducibility of 96.4%. OGM found more clinically relevant SVs compared to SOC testing due to its ability to detect all classes of SVs at higher resolution. The results of this validation study demonstrate the superiority of OGM over traditional SOC methods for the detection of SVs for the accurate diagnosis of various hematological malignancies. FAU - Pang, Andy W C AU - Pang AWC AD - Bionano, San Diego, CA 92121, USA. FAU - Kosco, Karena AU - Kosco K AD - Bionano Laboratories, San Diego, CA 92121, USA. FAU - Sahajpal, Nikhil S AU - Sahajpal NS AD - Department of Pathology, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA. FAU - Sridhar, Arthi AU - Sridhar A AD - Bionano Laboratories, San Diego, CA 92121, USA. FAU - Hauenstein, Jen AU - Hauenstein J AD - Bionano, San Diego, CA 92121, USA. FAU - Clifford, Benjamin AU - Clifford B AD - Bionano, San Diego, CA 92121, USA. FAU - Estabrook, Joey AU - Estabrook J AD - Bionano, San Diego, CA 92121, USA. FAU - Chitsazan, Alex D AU - Chitsazan AD AD - Bionano, San Diego, CA 92121, USA. FAU - Sahoo, Trilochan AU - Sahoo T AD - Bionano Laboratories, San Diego, CA 92121, USA. FAU - Iqbal, Anwar AU - Iqbal A AD - DNA Microarray CGH Laboratory, Department of Pathology, University of Rochester Medical Center, Rochester, NY 14642, USA. FAU - Kolhe, Ravindra AU - Kolhe R AUID- ORCID: 0000-0002-8283-2403 AD - Department of Pathology, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA. FAU - Raca, Gordana AU - Raca G AD - Department of Pathology and Laboratory Medicine, Children's Hospital of Los Angeles, Los Angeles, CA 90027, USA. FAU - Hastie, Alex R AU - Hastie AR AUID- ORCID: 0000-0001-5829-2649 AD - Bionano, San Diego, CA 92121, USA. AD - Bionano Laboratories, San Diego, CA 92121, USA. FAU - Chaubey, Alka AU - Chaubey A AUID- ORCID: 0000-0002-0914-9237 AD - Bionano, San Diego, CA 92121, USA. AD - Bionano Laboratories, San Diego, CA 92121, USA. LA - eng GR - This study was funded in part by Bionano./BioNano Genomics (United States)/ PT - Journal Article DEP - 20231209 PL - Switzerland TA - Biomedicines JT - Biomedicines JID - 101691304 PMC - PMC10741484 OTO - NOTNLM OT - copy-number variation (CNV) OT - optical genome mapping (OGM) OT - standard of care (SOC) OT - structural variation (SV) COIS- Authors A.W.C.P., J.H., B.C., J.E., A.D.C., T.S., A.R.H., A.C. are employed by the company Bionano Genomics Inc. Authors K.K. and A.S. were previously employed by the company Bionano Genomics Inc. The author N.S.S. holds stock shares of Bionano Genomics Inc. The author R.K. declares to have received funding in the form of honoraria, travel funding and research support from Bionano Genomics Inc. The remaining authors declare that the research was conducted in the absence of any commercial or financial rela-tionships that could be construed as a potential conflict of interest. EDAT- 2023/12/23 12:43 MHDA- 2023/12/23 12:44 PMCR- 2023/12/09 CRDT- 2023/12/23 01:10 PHST- 2023/10/27 00:00 [received] PHST- 2023/11/23 00:00 [revised] PHST- 2023/12/04 00:00 [accepted] PHST- 2023/12/23 12:44 [medline] PHST- 2023/12/23 12:43 [pubmed] PHST- 2023/12/23 01:10 [entrez] PHST- 2023/12/09 00:00 [pmc-release] AID - biomedicines11123263 [pii] AID - biomedicines-11-03263 [pii] AID - 10.3390/biomedicines11123263 [doi] PST - epublish SO - Biomedicines. 2023 Dec 9;11(12):3263. doi: 10.3390/biomedicines11123263.