PMID- 36011278 OWN - NLM STAT- MEDLINE DCOM- 20220829 LR - 20221004 IS - 2073-4425 (Electronic) IS - 2073-4425 (Linking) VI - 13 IP - 8 DP - 2022 Jul 29 TI - PPP1R7 Is a Novel Translocation Partner of CBFB via t(2;16)(q37;q22) in Acute Myeloid Leukemia. LID - 10.3390/genes13081367 [doi] LID - 1367 AB - In a subset of acute myeloid leukemia (AML) cases, the core binding factor beta subunit gene (CBFB) was rearranged via inv(16)(p13.1q22) or t(16;16)(p13.1;q22), in which the smooth muscle myosin heavy chain 11 gene (MYH11) was the partner (CBFB::MYH11). Rare variants of CBFB rearrangement occurring via non-classic chromosomal aberrations have been reported, such as t(1;16), t(2;16), t(3;16), t(5;16), and t(16;19), but the partners of CBFB have not been characterized. We report a case of AML with a complex karyotype, including t(2;16)(q37;q22), in which the protein phosphatase 1 regulatory subunit 7 gene (PPP1R7) at chromosome 2q37 was rearranged with CBFB (CBFB::PPP1R7). This abnormality was inconspicuous by conventional karyotype and interphase fluorescence in situ hybridization (FISH), thus leading to an initial interpretation of inv(16)(p13.1q22); however, metaphase FISH showed that the CBFB rearrangement involved chromosome 2. Using whole genome and Sanger sequencing, the breakpoints were identified as being located in intron 5 of CBFB and intron 7 of PPP1R7. A microhomology of CAG was found in the break and reconnection sites of CBFB and PPP1R7, thus supporting the formation of CBFB::PPP1R7 by microhomology-mediated end joining. FAU - Wang, Lulu AU - Wang L AD - Departments of Clinical Cancer Prevention, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA. FAU - Wang, Wei AU - Wang W AD - Departments of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA. FAU - Beird, Hannah C AU - Beird HC AUID- ORCID: 0000-0002-5078-534X AD - Departments of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA. FAU - Cheng, Xueqian AU - Cheng X AUID- ORCID: 0000-0001-8454-1071 AD - Departments of Clinical Cancer Prevention, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA. FAU - Fang, Hong AU - Fang H AD - Departments of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA. FAU - Tang, Guilin AU - Tang G AD - Departments of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA. FAU - Toruner, Gokce A AU - Toruner GA AUID- ORCID: 0000-0002-5305-6337 AD - Departments of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA. FAU - Yin, C Cameron AU - Yin CC AD - Departments of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA. FAU - You, M James AU - You MJ AD - Departments of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA. FAU - Issa, Ghayas C AU - Issa GC AUID- ORCID: 0000-0002-4339-8683 AD - Departments of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA. FAU - Borthakur, Gautam AU - Borthakur G AD - Departments of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA. FAU - Peng, Guang AU - Peng G AD - Departments of Clinical Cancer Prevention, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA. FAU - Khoury, Joseph D AU - Khoury JD AUID- ORCID: 0000-0003-2621-3584 AD - Departments of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA. FAU - Medeiros, L Jeffrey AU - Medeiros LJ AUID- ORCID: 0000-0001-6577-8006 AD - Departments of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA. FAU - Tang, Zhenya AU - Tang Z AUID- ORCID: 0000-0002-8079-9945 AD - Departments of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA. LA - eng PT - Case Reports PT - Journal Article DEP - 20220729 PL - Switzerland TA - Genes (Basel) JT - Genes JID - 101551097 RN - 0 (CBFB protein, human) RN - 0 (Core Binding Factor beta Subunit) RN - 0 (Oncogene Proteins, Fusion) SB - IM MH - Chromosome Aberrations MH - Core Binding Factor beta Subunit/genetics MH - Humans MH - In Situ Hybridization, Fluorescence MH - *Leukemia, Myeloid, Acute/genetics MH - *Oncogene Proteins, Fusion/genetics MH - Translocation, Genetic/genetics PMC - PMC9407081 OTO - NOTNLM OT - AML OT - CBFB rearrangement OT - PPP1R7 OT - microhomology OT - novel partner gene COIS- The authors declare no conflict of interest. EDAT- 2022/08/27 06:00 MHDA- 2022/08/30 06:00 PMCR- 2022/07/29 CRDT- 2022/08/26 01:16 PHST- 2022/07/07 00:00 [received] PHST- 2022/07/22 00:00 [revised] PHST- 2022/07/25 00:00 [accepted] PHST- 2022/08/26 01:16 [entrez] PHST- 2022/08/27 06:00 [pubmed] PHST- 2022/08/30 06:00 [medline] PHST- 2022/07/29 00:00 [pmc-release] AID - genes13081367 [pii] AID - genes-13-01367 [pii] AID - 10.3390/genes13081367 [doi] PST - epublish SO - Genes (Basel). 2022 Jul 29;13(8):1367. doi: 10.3390/genes13081367.