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Zheng R, Fuda F, Gagan JR, Weinberg OK, Koduru P, Cantu M, Ludwig K, Truscott JM, Collins R, Chung S, Madanat YF, Chen W. Genomic heterogeneity within B/T mixed phenotype acute leukemia in a context of an immunophenotype. Leuk Res Rep 2023; 21:100410. [PMID: 38273970 PMCID: PMC10808966 DOI: 10.1016/j.lrr.2023.100410] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Revised: 11/19/2023] [Accepted: 12/29/2023] [Indexed: 01/27/2024] Open
Abstract
B/T mixed phenotype acute leukemia (MPAL) is a rare aggressive leukemia. Three cases of B/T MPAL were identified with comprehensive immunophenotypic, cytogenetic, and molecular studies. T-lineage predominant B/T MPAL shares a genetic signature with T-ALL whereas B/T lineage co-dominant B/T MPAL lacks such a T-ALL signature. All three patients were treated with lineage-matched-ALL therapy and alive at the last follow-up. Our study is the first to demonstrate molecular heterogeneity within B/T MPAL in a context of an immunophenotype of T-lineage versus B-lineage predominance. The implication of such a phenotype-genotype association on diagnostic classification is briefly discussed.
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Affiliation(s)
- Ruifang Zheng
- Departments of Pathology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Franklin Fuda
- Departments of Pathology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Jeffrey R. Gagan
- Departments of Pathology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Olga K. Weinberg
- Departments of Pathology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Prasad Koduru
- Departments of Pathology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Miguel Cantu
- Departments of Pathology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Kathleen Ludwig
- Departments of Pediatrics (Hematology and Oncology), University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Jamie M. Truscott
- Departments of Pediatrics (Hematology and Oncology), University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Robert Collins
- Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Stephen Chung
- Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Yazan F. Madanat
- Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Weina Chen
- Departments of Pathology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
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