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Exome sequencing re...
Exome sequencing reveals novel mutation targets in diffuse large B-cell lymphomas derived from Chinese patients
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de Miranda, Noel F. C. C. (author)
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- Georgiou, Konstantinos (author)
- Karolinska Institutet
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Chen, Longyun (author)
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Wu, Chenglin (author)
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Gao, Zhibo (author)
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- Zaravinos, Apostolos (author)
- Karolinska Institutet
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Lisboa, Susana (author)
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- Enblad, Gunilla (author)
- Uppsala universitet,Enheten för onkologi
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Teixeira, Manuel R. (author)
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Zeng, Yixin (author)
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Peng, Roujun (author)
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- Pan-Hammarstrom, Qiang (author)
- Karolinska Institutet
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(creator_code:org_t)
- American Society of Hematology, 2014
- 2014
- English.
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In: Blood. - : American Society of Hematology. - 0006-4971 .- 1528-0020. ; 124:16, s. 2544-2553
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https://ashpublicati...
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https://urn.kb.se/re...
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Abstract
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- Next-generation sequencing studies on diffuse large B-cell lymphomas (DLBCLs) have revealed novel targets of genetic aberrations but also high intercohort heterogeneity. Previous studies have suggested that the prevalence of disease subgroups and cytogenetic profiles differ between Western and Asian patients. To characterize the coding genome of Chinese DLBCL, we performed whole-exome sequencing of DNA derived from 31 tumors and respective peripheral blood samples. The mutation prevalence of B2M, CD70, DTX1, LYN, TMSB4X, and UBE2A was investigated in an additional 105 tumor samples. We discovered 11 novel targets of recurrent mutations in DLBCL that included functionally relevant genes such as LYN and TMSB4X. Additional genes were found mutated at high frequency (>= 10%) in the Chinese cohort including DTX1, which was the most prevalent mutation target in the Notch pathway. We furthermore demonstrated that mutations in DTX1 impair its function as a negative regulator of Notch. Novel and previous unappreciated targets of somatic mutations in DLBCL identified in this study support the existence of additional/alternative tumorigenic pathways in these tumors. The observed differences with previous reports might be explained by the genetic heterogeneity of DLBCL, the germline genetic makeup of Chinese individuals, and/or exposure to distinct etiological agents.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Hematologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Hematology (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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Blood
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- By the author/editor
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de Miranda, Noel ...
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Georgiou, Konsta ...
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Chen, Longyun
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Wu, Chenglin
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Gao, Zhibo
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Zaravinos, Apost ...
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show more...
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Lisboa, Susana
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Enblad, Gunilla
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Teixeira, Manuel ...
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Zeng, Yixin
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Peng, Roujun
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Pan-Hammarstrom, ...
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show less...
- About the subject
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- MEDICAL AND HEALTH SCIENCES
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MEDICAL AND HEAL ...
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and Clinical Medicin ...
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and Hematology
- Articles in the publication
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Blood
- By the university
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Uppsala University
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Karolinska Institutet