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Yang Y, Shu Y, Tang Y, Zhao S, Jia Y, Ji J, Ma H, Lin T, Zheng K, Xu H, Wu Y. RNA sequencing of myeloid sarcoma, shed light on myeloid sarcoma stratification. Cancer Med 2023; 12:9156-9166. [PMID: 36916780 PMCID: PMC10166975 DOI: 10.1002/cam4.5654] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 01/11/2023] [Accepted: 01/17/2023] [Indexed: 03/16/2023] Open
Abstract
BACKGROUND Myeloid sarcoma (MS) is a rare, extramedullary tumor consisting of myeloid blasts. Little is known about the genetic background of MS and the prognostic value of genetic abnormalities in MS. In particular, the broad variety of gene fusions that occur in MS is marginally covered by traditional testing methods due to lack of fresh tumor specimens. METHODS Here, we analyzed the clinical and genetic features of 61 MS cases. We performed RNA sequencing (RNA-seq) on formalin-fixed paraffin-embedded (FFPE) or fresh samples to analyze fusion genes in 26 cases. In addition, we performed genetic abnormalities-based risk stratification using fusion genes and gene mutations. RESULTS A total of 305 fusion genes were identified in 22 cases, including the following five recurrent fusion genes: RUNX1-RUNX1T1, CBFβ-MYH11, ETV6-MECOM, FUS-ERG, and PICALM-MLLT10. The prognosis in the adverse-risk group was significantly worse than that in the favorable/intermediate-risk group (median survival: 12 months vs. not reached; p = 0.0004). CONCLUSION These results indicated the efficacy of RNA-seq using FFPE-derived RNA as a clinical routine for detecting fusion genes, which can be used as markers for risk stratification in MS.
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Affiliation(s)
- Yunfan Yang
- Department of Hematology, Institute of Hematology, West China Hospital of Sichuan University, Chengdu, People's Republic of China
| | - Yang Shu
- Department of Gastrointestinal Surgery, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital of Sichuan University, Chengdu, People's Republic of China.,State Key Laboratory of Biotherapy and Cancer Center, West China Hospital of Sichuan University, Chengdu, People's Republic of China
| | - Yuan Tang
- Department of Pathology, West China Hospital of Sichuan University, Chengdu, People's Republic of China
| | - Sha Zhao
- Department of Pathology, West China Hospital of Sichuan University, Chengdu, People's Republic of China
| | - Yongqian Jia
- Department of Hematology, Institute of Hematology, West China Hospital of Sichuan University, Chengdu, People's Republic of China
| | - Jie Ji
- Department of Hematology, Institute of Hematology, West China Hospital of Sichuan University, Chengdu, People's Republic of China
| | - Hongbing Ma
- Department of Hematology, Institute of Hematology, West China Hospital of Sichuan University, Chengdu, People's Republic of China
| | - Ting Lin
- Department of Hematology, Institute of Hematology, West China Hospital of Sichuan University, Chengdu, People's Republic of China
| | - Ke Zheng
- Department of Pathology, West China Hospital of Sichuan University, Chengdu, People's Republic of China
| | - Heng Xu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital of Sichuan University, Chengdu, People's Republic of China.,Department of Laboratory Medicine, West China Hospital of Sichuan University, Chengdu, People's Republic of China
| | - Yu Wu
- Department of Hematology, Institute of Hematology, West China Hospital of Sichuan University, Chengdu, People's Republic of China
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Yang M, Zhao B, Wang J, Zhang Y, Hu C, Liu L, Qin J, Lou F, Cao S, Wang C, Yu W, Tong H, Meng H, Huang J, Zhu H, Jin J. A Predictor Combining Clinical and Genetic Factors for AML1-ETO Leukemia Patients. Front Oncol 2022; 11:783114. [PMID: 35096581 PMCID: PMC8796117 DOI: 10.3389/fonc.2021.783114] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Accepted: 12/07/2021] [Indexed: 11/13/2022] Open
Abstract
Core Binding Factor (CBF)-AML is one of the most common somatic mutations in acute myeloid leukemia (AML). t(8;21)/AML1-ETO-positive acute myeloid leukemia accounts for 5-10% of all AMLs. In this study, we consecutively included 254 AML1-ETO patients diagnosed and treated at our institute from December 2009 to March 2020, and evaluated molecular mutations by 185-gene NGS platform to explore genetic co-occurrences with clinical outcomes. Our results showed that high KIT VAF(≥15%) correlated with shortened overall survival compared to other cases with no KIT mutation (3-year OS rate 26.6% vs 59.0% vs 69.6%, HR 1.50, 95%CI 0.78-2.89, P=0.0005). However, no difference was found in patients’ OS whether they have KIT mutation in two or three sites. Additionally, we constructed a risk model by combining clinical and molecular factors; this model was validated in other independent cohorts. In summary, our study showed that c-kit other than any other mutations would influence the OS in AML1-ETO patients. A proposed predictor combining both clinical and genetic factors is applicable to prognostic prediction in AML1-ETO patients.
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Affiliation(s)
- Min Yang
- Department of Hematology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.,Institute of Hematology, Zhejiang University, Hangzhou, China.,Zhejiang Province Key Laboratory of Hematology Oncology Diagnosis and Treatment, Hangzhou, China
| | - Bide Zhao
- Department of Hematology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Jinghan Wang
- Department of Hematology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.,Institute of Hematology, Zhejiang University, Hangzhou, China.,Zhejiang Province Key Laboratory of Hematology Oncology Diagnosis and Treatment, Hangzhou, China
| | - Yi Zhang
- Department of Hematology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.,Institute of Hematology, Zhejiang University, Hangzhou, China.,Zhejiang Province Key Laboratory of Hematology Oncology Diagnosis and Treatment, Hangzhou, China
| | - Chao Hu
- Department of Hematology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.,Institute of Hematology, Zhejiang University, Hangzhou, China.,Zhejiang Province Key Laboratory of Hematology Oncology Diagnosis and Treatment, Hangzhou, China
| | - Lixia Liu
- Acornmed Biotechnology Co., Ltd., Beijing, China
| | - Jiayue Qin
- Acornmed Biotechnology Co., Ltd., Beijing, China
| | - Feng Lou
- Acornmed Biotechnology Co., Ltd., Beijing, China
| | - Shanbo Cao
- Acornmed Biotechnology Co., Ltd., Beijing, China
| | | | - Wenjuan Yu
- Department of Hematology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.,Institute of Hematology, Zhejiang University, Hangzhou, China.,Zhejiang Province Key Laboratory of Hematology Oncology Diagnosis and Treatment, Hangzhou, China
| | - Hongyan Tong
- Department of Hematology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.,Institute of Hematology, Zhejiang University, Hangzhou, China.,Zhejiang Province Key Laboratory of Hematology Oncology Diagnosis and Treatment, Hangzhou, China
| | - Haitao Meng
- Department of Hematology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.,Institute of Hematology, Zhejiang University, Hangzhou, China.,Zhejiang Province Key Laboratory of Hematology Oncology Diagnosis and Treatment, Hangzhou, China
| | - Jian Huang
- Department of Hematology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.,Institute of Hematology, Zhejiang University, Hangzhou, China.,Zhejiang Province Key Laboratory of Hematology Oncology Diagnosis and Treatment, Hangzhou, China
| | - Honghu Zhu
- Department of Hematology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.,Institute of Hematology, Zhejiang University, Hangzhou, China.,Zhejiang Province Key Laboratory of Hematology Oncology Diagnosis and Treatment, Hangzhou, China
| | - Jie Jin
- Department of Hematology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.,Institute of Hematology, Zhejiang University, Hangzhou, China.,Zhejiang Province Key Laboratory of Hematology Oncology Diagnosis and Treatment, Hangzhou, China
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