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Song L, Zhang Y, Wang Y, Xia Q, Guo D, Cao J, Xin X, Cheng H, Liu C, Jia X, Li F. Detection of various fusion genes by one-step RT-PCR and the association with clinicopathological features in 242 cases of soft tissue tumor. Front Cell Dev Biol 2023; 11:1214262. [PMID: 37621777 PMCID: PMC10446835 DOI: 10.3389/fcell.2023.1214262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Accepted: 06/26/2023] [Indexed: 08/26/2023] Open
Abstract
Introduction: Over the past decades, an increasing number of chromosomal translocations have been found in different STSs, which not only has value for clinical diagnosis but also suggests the pathogenesis of STS. Fusion genes can be detected by FISH, RT-PCR, and next-generation sequencing. One-step RT-PCR is a convenient method to detect fusion genes with higher sensitivity and lower cost. Method: In this study, 242 cases of soft tissue tumors were included, which were detected by one-step RT-PCR in multicenter with seven types of tumors: rhabdomyosarcoma (RMS), peripheral primitive neuroectodermal tumor (pPNET), synovial sarcoma (SS), myxoid liposarcomas (MLPS), alveolar soft part sarcoma (ASPS), dermatofibrosarcoma protuberans (DFSP), and soft tissue angiofibroma (AFST). 18 cases detected by one-step RT-PCR were further tested by FISH. One case with novel fusion gene detected by RNA-sequencing was further validated by one-step RT-PCR. Results: The total positive rate of fusion genes was 60% (133/213) in the 242 samples detected by one-step RT-PCR, in which 29 samples could not be evaluated because of poor RNA quality. The positive rate of PAX3-FOXO1 was 88.6% (31/35) in alveolar rhabdomyosarcoma, EWSR1-FLI1 was 63% (17/27) in pPNET, SYT-SSX was 95.4% in SS (62/65), ASPSCR1-TFE3 was 100% in ASPS (10/10), FUS-DDIT3 was 80% in MLPS (4/5), and COL1A1-PDGFB was 66.7% in DFSP (8/12). For clinicopathological parameters, fusion gene status was correlated with age and location in 213 cases. The PAX3-FOXO1 fusion gene status was correlated with lymph node metastasis and distant metastasis in RMS. Furthermore, RMS patients with positive PAX3-FOXO1 fusion gene had a significantly shorter overall survival time than those patients with the negative fusion gene. Among them, the FISH result of 18 cases was concordant with one-step RT-PCR. As detected as the most common fusion types of AHRR-NCOA2 in one case of AFST were detected as negative by one-step RT-PCR. RNA-sequencing was used to determine the fusion genes, and a novel fusion gene PTCH1-PLAG1 was found. Moreover, the fusion gene was confirmed by one-step RT-PCR. Conclusion: Our study indicates that one-step RT-PCR displays a reliable tool to detect fusion genes with the advantage of high accuracy and low cost. Moreover, it is a great tool to identify novel fusion genes. Overall, it provides useful information for molecular pathological diagnosis and improves the diagnosis rate of STSs.
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Affiliation(s)
- Lingxie Song
- Department of Pathology and Medical Research Center, Beijing Institute of Respiratory Medicine and Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Ying Zhang
- Department of Pathology and Medical Research Center, Beijing Institute of Respiratory Medicine and Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
- Department of Pathology and Key Laboratory for Xinjiang Endemic and Ethnic Diseases, The First Affiliated Hospital, Shihezi University School of Medicine, Shihezi, China
| | - Yuanyuan Wang
- Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, Henan, China
| | - Qingxin Xia
- Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, Henan, China
| | - Dandan Guo
- Department of Pathology and Medical Research Center, Beijing Institute of Respiratory Medicine and Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Jiachen Cao
- Department of Pathology and Medical Research Center, Beijing Institute of Respiratory Medicine and Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Xin Xin
- Department of Pathology and Medical Research Center, Beijing Institute of Respiratory Medicine and Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Haoyue Cheng
- Department of Pathology and Medical Research Center, Beijing Institute of Respiratory Medicine and Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Chunxia Liu
- Department of Pathology and Key Laboratory for Xinjiang Endemic and Ethnic Diseases, The First Affiliated Hospital, Shihezi University School of Medicine, Shihezi, China
- Department of Pathology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Xingyuan Jia
- Department of Pathology and Medical Research Center, Beijing Institute of Respiratory Medicine and Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Feng Li
- Department of Pathology and Medical Research Center, Beijing Institute of Respiratory Medicine and Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
- Department of Pathology and Key Laboratory for Xinjiang Endemic and Ethnic Diseases, The First Affiliated Hospital, Shihezi University School of Medicine, Shihezi, China
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Miyagawa T, Kadono T, Kimura T, Saigusa R, Yoshizaki A, Miyagaki T, Yamada D, Masui Y, Fujita H, Sato S. Pazopanib induced a partial response in a patient with metastatic fibrosarcomatous dermatofibrosarcoma protuberans without genetic translocations resistant to mesna, doxorubicin, ifosfamide and dacarbazine chemotherapy and gemcitabine-docetaxel chemothera. J Dermatol 2016; 44:e21-e22. [DOI: 10.1111/1346-8138.13717] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Takuya Miyagawa
- Department of Dermatology; University of Tokyo Graduate School of Medicine; Tokyo
| | - Takafumi Kadono
- Department of Dermatology; St Marianna University School of Medicine; Kawasaki Japan
| | - Takayuki Kimura
- Department of Dermatology; University of Tokyo Graduate School of Medicine; Tokyo
| | - Ryosuke Saigusa
- Department of Dermatology; University of Tokyo Graduate School of Medicine; Tokyo
| | - Ayumi Yoshizaki
- Department of Dermatology; University of Tokyo Graduate School of Medicine; Tokyo
| | - Tomomitsu Miyagaki
- Department of Dermatology; University of Tokyo Graduate School of Medicine; Tokyo
| | - Daisuke Yamada
- Department of Dermatology; University of Tokyo Graduate School of Medicine; Tokyo
| | - Yuri Masui
- Department of Dermatology; University of Tokyo Graduate School of Medicine; Tokyo
| | - Hideki Fujita
- Department of Dermatology; University of Tokyo Graduate School of Medicine; Tokyo
| | - Shinichi Sato
- Department of Dermatology; University of Tokyo Graduate School of Medicine; Tokyo
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Smith SM, Coleman J, Bridge JA, Iwenofu OH. Molecular diagnostics in soft tissue sarcomas and gastrointestinal stromal tumors. J Surg Oncol 2015; 111:520-31. [PMID: 25772665 DOI: 10.1002/jso.23882] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2014] [Accepted: 12/11/2014] [Indexed: 12/17/2022]
Abstract
Soft tissue sarcomas are rare malignant heterogenous tumors of mesenchymal origin with over fifty subtypes. The use of hematoxylin and eosin stained sections (and immunohistochemistry) in the morphologic assessment of these tumors has been the bane of clinical diagnosis until recently. The last decade has witnessed considerable progress in the understanding and application of molecular techniques in refining the current understanding of soft tissue sarcomas and gastrointestinal stromal tumors beyond the limits of traditional approaches. Indeed, the identification of reciprocal chromosomal translocations and fusion genes in some subsets of sarcomas with potential implications in the pathogenesis, diagnosis and treatment has been revolutionary. The era of molecular targeted therapy presents a platform that continues to drive biomarker discovery and personalized medicine in soft tissue sarcomas and gastrointestinal stromal tumors. In this review, we highlight how the different molecular techniques have enhanced the diagnosis of these tumors with prognostic and therapeutic implications.
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Affiliation(s)
- Stephen M Smith
- Department of Pathology & Laboratory Medicine, Wexner Medical Center at The Ohio State University, Columbus, Ohio
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