PMID- 38137010 OWN - NLM STAT- MEDLINE DCOM- 20231225 LR - 20231225 IS - 2073-4425 (Electronic) IS - 2073-4425 (Linking) VI - 14 IP - 12 DP - 2023 Dec 8 TI - Optical Genome Mapping Helps to Identify BCR::JAK2 Rearrangement Arising from Cryptic Complex Chromosomal Aberrations: A Case Report and Literature Review. LID - 10.3390/genes14122188 [doi] LID - 2188 AB - We report a case of myeloproliferative neoplasm, not otherwise specified (MPN-NOS)-transformed AML with BCR::JAK2 rearrangement. Chromosomal analysis indicated a simple abnormal karyotype 46,XY,t(7;17)(q21;q24),t(9;22)(p24;q11.2). Fluorescence in situ hybridization (FISH) using a BCR/ABL1/ASS1 probe set suggested a possible BCR rearrangement and a reflex JAK2 breakapart probe indicated JAK2 rearrangement, most likely partnered with BCR. Optical genome mapping (OGM) analysis confirmed BCR::JAK2 derived through an inv(9)(p24p13) after a t(9;22)(p13;q11.2) in this case. Due to the complexity of chromosomal aberrations, disruption and/or rearrangement of other genes such as KIF24::BCR, JAK2::KIF24/UBAP1, and CDK6:SOX9 were also identified by OGM. Although the functionality and clinical importance of these novel rearrangements were unknown, disruption of these genes might be associated with a poorer response to chemotherapy and disease progression. We also reviewed all cases with BCR::JAK2 rearrangement reported in the literature. In conclusion, a suspected t(9;22)/BCR::JAK2 rearrangement warrants further characterization with genomic assays such as OGM, whole chromosome sequencing, and RNA sequencing to explore other gene disruptions and/or rearrangements. FAU - Vanjari, Neelam AU - Vanjari N AD - School of Health Professions, The University of Texas MD Anderson Cancer Center, Houston, TX 77015, USA. FAU - Tang, Guilin AU - Tang G AD - Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77015, USA. FAU - Toruner, Gokce A AU - Toruner GA AUID- ORCID: 0000-0002-5305-6337 AD - Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77015, USA. FAU - Wang, Wei AU - Wang W AD - Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77015, USA. FAU - Thakral, Beenu AU - Thakral B AUID- ORCID: 0000-0001-5140-3633 AD - Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77015, USA. FAU - Zhao, Ming AU - Zhao M AD - School of Health Professions, The University of Texas MD Anderson Cancer Center, Houston, TX 77015, USA. FAU - Dave, Bhavana J AU - Dave BJ AD - Department of Pathology, Microbiology and Immunology, University of Nebraska Medical Center, Omaha, NE 68198, USA. FAU - Khoury, Joseph D AU - Khoury JD AUID- ORCID: 0000-0003-2621-3584 AD - Department of Pathology, Microbiology and Immunology, University of Nebraska Medical Center, Omaha, NE 68198, USA. FAU - Medeiros, L Jeffrey AU - Medeiros LJ AUID- ORCID: 0000-0001-6577-8006 AD - Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77015, USA. FAU - Tang, Zhenya AU - Tang Z AUID- ORCID: 0000-0002-8079-9945 AD - Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77015, USA. AD - Department of Pathology, Microbiology and Immunology, University of Nebraska Medical Center, Omaha, NE 68198, USA. LA - eng PT - Case Reports PT - Review DEP - 20231208 PL - Switzerland TA - Genes (Basel) JT - Genes JID - 101551097 RN - EC 2.7.10.2 (JAK2 protein, human) RN - EC 2.7.10.2 (Janus Kinase 2) SB - IM MH - Humans MH - In Situ Hybridization, Fluorescence MH - *Chromosome Aberrations MH - *Myeloproliferative Disorders/genetics MH - Disease Progression MH - Chromosome Mapping MH - Janus Kinase 2/genetics PMC - PMC10742890 OTO - NOTNLM OT - BCR::JAK2 rearrangement OT - complex chromosomal aberrations OT - fluorescence in situ hybridization (FISH) OT - myeloproliferative neoplasm (MPN) OT - optical genome mapping (OGM) COIS- The authors declare no conflict of interest. EDAT- 2023/12/23 12:43 MHDA- 2023/12/25 06:42 PMCR- 2023/12/08 CRDT- 2023/12/23 01:07 PHST- 2023/11/17 00:00 [received] PHST- 2023/11/28 00:00 [revised] PHST- 2023/12/02 00:00 [accepted] PHST- 2023/12/25 06:42 [medline] PHST- 2023/12/23 12:43 [pubmed] PHST- 2023/12/23 01:07 [entrez] PHST- 2023/12/08 00:00 [pmc-release] AID - genes14122188 [pii] AID - genes-14-02188 [pii] AID - 10.3390/genes14122188 [doi] PST - epublish SO - Genes (Basel). 2023 Dec 8;14(12):2188. doi: 10.3390/genes14122188.