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Butzmann A, Sridhar K, Jangam D, Song H, Singh A, Kumar J, Chisholm KM, Pinsky B, Huang F, Ohgami RS. Mutations in JAK/STAT and NOTCH1 Genes Are Enriched in Post-Transplant Lymphoproliferative Disorders. Front Oncol 2022; 11:790481. [PMID: 35111674 PMCID: PMC8801788 DOI: 10.3389/fonc.2021.790481] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 12/13/2021] [Indexed: 12/22/2022] Open
Abstract
Post-transplant lymphoproliferative disorders (PTLD) are diseases occurring in immunocompromised patients after hematopoietic stem cell transplantation (HCT) or solid organ transplantation (SOT). Although PTLD occurs rarely, it may be associated with poor outcomes. In most cases, PTLD is driven by Epstein-Barr virus (EBV) infection. Few studies have investigated the mutational landscape and gene expression profile of PTLD. In our study, we performed targeted deep sequencing and RNA-sequencing (RNA-Seq) on 16 cases of florid follicular hyperplasia (FFH) type PTLD and 15 cases of other PTLD types that include: ten monomorphic (M-PTLD), three polymorphic (P-PTLD), and two classic Hodgkin lymphoma type PTLDs (CHL-PTLD). Our study identified recurrent mutations in JAK3 in five of 15 PTLD cases and one of 16 FFH-PTLD cases, as well as 16 other genes that were mutated in M-PTLD, P-PTLD, CHL-PTLD and FFH-PTLD. Digital image analysis demonstrated significant differences in single cell area, major axis, and diameter when comparing cases of M-PTLD and P-PTLD to FFH-PTLD. No morphometric relationship was identified with regards to a specific genetic mutation. Our findings suggest that immune regulatory pathways play an essential role in PTLD, with the JAK/STAT pathway affected in many PTLDs.
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Affiliation(s)
- Alexandra Butzmann
- Agilent Technologies, Santa Clara, CA, United States
- Department of Pathology, University of California, San Francisco, San Francisco, CA, United States
- *Correspondence: Alexandra Butzmann,
| | - Kaushik Sridhar
- Department of Pathology, University of California, San Francisco, San Francisco, CA, United States
| | - Diwash Jangam
- Department of Pathology, Stanford University, Stanford, CA, United States
| | - Hanbing Song
- Department of Pathology, University of California, San Francisco, San Francisco, CA, United States
| | - Amol Singh
- Department of Pathology, Stanford University, Stanford, CA, United States
| | - Jyoti Kumar
- Department of Pathology, Stanford University, Stanford, CA, United States
| | - Karen M. Chisholm
- Department of Laboratories, Seattle Children’s Hospital, Seattle, WA, United States
| | - Benjamin Pinsky
- Department of Pathology, Stanford University, Stanford, CA, United States
| | - Franklin Huang
- Department of Pathology, University of California, San Francisco, San Francisco, CA, United States
| | - Robert S. Ohgami
- Department of Pathology, University of California, San Francisco, San Francisco, CA, United States
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Kennedy VE, Ruiz-Cordero R, Jangam D, Wen KW, Dunavin N, Ohgami RS, Bhargava P, Ai W, Fakhri B. A Case of EBV-Negative Aggressive NK-cell Leukemia: Use of Next-Generation Sequencing in Demystifying a Diagnostic Dilemma and Guiding Clinical Care. CLINICAL LYMPHOMA MYELOMA & LEUKEMIA 2021; 21:e583-e587. [PMID: 33814335 DOI: 10.1016/j.clml.2021.02.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Accepted: 02/20/2021] [Indexed: 11/28/2022]
Affiliation(s)
- Vanessa E Kennedy
- Department of Medicine, University of California, San Francisco, CA.
| | | | - Diwash Jangam
- Department of Pathology, Stanford University, Stanford, CA
| | - Kwun Wah Wen
- Department of Pathology, University of California, San Francisco, CA
| | - Neil Dunavin
- Department of Medicine, University of California, San Francisco, CA
| | - Robert S Ohgami
- Department of Pathology, University of California, San Francisco, CA
| | - Parul Bhargava
- Department of Pathology, University of California, San Francisco, CA
| | - Weiyun Ai
- Department of Medicine, University of California, San Francisco, CA
| | - Bita Fakhri
- Department of Medicine, University of California, San Francisco, CA
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