Prognostic value of isocitrate dehydrogenase mutations in myelodysplastic syndromes: a retrospective cohort study and meta-analysis

Recent genomic sequencing efforts have identified a number of recurrent mutations in myelodysplastic syndromes (MDS) that may contribute to disease progression and overall survival, including mutations in isocitrate dehydrogenases 1 and 2 (IDH1 and IDH2). Pretreatment bone marrow (BM) samples were a...

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Veröffentlicht in:PloS one 2014-06, Vol.9 (6), p.e100206-e100206
Hauptverfasser: Jin, Jie, Hu, Chao, Yu, Mengxia, Chen, Feifei, Ye, Li, Yin, Xiufeng, Zhuang, Zhengping, Tong, Hongyan
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container_title PloS one
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creator Jin, Jie
Hu, Chao
Yu, Mengxia
Chen, Feifei
Ye, Li
Yin, Xiufeng
Zhuang, Zhengping
Tong, Hongyan
description Recent genomic sequencing efforts have identified a number of recurrent mutations in myelodysplastic syndromes (MDS) that may contribute to disease progression and overall survival, including mutations in isocitrate dehydrogenases 1 and 2 (IDH1 and IDH2). Pretreatment bone marrow (BM) samples were acquired from mononuclear cells in 146 adult patients with de novo MDS from January 2006 to June 2013. Polymerase chain reaction (PCR) and direct sequencing were performed on exon 4 of IDH1/2 genes and mutation status was correlated with overall survival (OS) and leukemia-free survival (LFS). We then performed a meta-analysis combining previously published and current studies to explore the effect of IDH mutations on OS and LFS in MDS. In our study, somatic mutations of either IDH gene were discovered in 11 MDS patients (7.53%) and were significantly correlated with poorer OS (P = 0.007). IDH mutations were specifically associated with a poorer OS in the intermediate-1 risk group by the International Prognostic Scoring System (IPSS) (P = 0.039). In addition, we discovered decitabine achieved a better therapeutic effect compared to other treatments in IDH mutation-positive patients (P = 0.023). We identified six previous studies of IDH mutations in MDS. A meta-analysis of these studies included 111 MDS patients IDH mutations and 1671 MDS patients with wild-type IDH1/2. The hazard ratios (HRs) of OS and LFS for patients with IDH mutations were 1.62 (95% CI, 1.27-2.09) and 2.21 (95% CI, 1.48-3.30), respectively. The results from our study and the meta-analysis provide firm evidence that IDH mutations are significantly associated with poorer clinical outcomes in MDS. Identification of IDH mutations may be pivotal for better risk stratification in MDS patients and improving IPSS score. Additionally, hypomethylating agents may be an effective treatment option for MDS patients with IDH mutations.
doi_str_mv 10.1371/journal.pone.0100206
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Pretreatment bone marrow (BM) samples were acquired from mononuclear cells in 146 adult patients with de novo MDS from January 2006 to June 2013. Polymerase chain reaction (PCR) and direct sequencing were performed on exon 4 of IDH1/2 genes and mutation status was correlated with overall survival (OS) and leukemia-free survival (LFS). We then performed a meta-analysis combining previously published and current studies to explore the effect of IDH mutations on OS and LFS in MDS. In our study, somatic mutations of either IDH gene were discovered in 11 MDS patients (7.53%) and were significantly correlated with poorer OS (P = 0.007). IDH mutations were specifically associated with a poorer OS in the intermediate-1 risk group by the International Prognostic Scoring System (IPSS) (P = 0.039). In addition, we discovered decitabine achieved a better therapeutic effect compared to other treatments in IDH mutation-positive patients (P = 0.023). We identified six previous studies of IDH mutations in MDS. A meta-analysis of these studies included 111 MDS patients IDH mutations and 1671 MDS patients with wild-type IDH1/2. The hazard ratios (HRs) of OS and LFS for patients with IDH mutations were 1.62 (95% CI, 1.27-2.09) and 2.21 (95% CI, 1.48-3.30), respectively. The results from our study and the meta-analysis provide firm evidence that IDH mutations are significantly associated with poorer clinical outcomes in MDS. Identification of IDH mutations may be pivotal for better risk stratification in MDS patients and improving IPSS score. 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Academic</collection><collection>PubMed Central (Full Participant titles)</collection><collection>DOAJ Directory of Open Access Journals</collection><jtitle>PloS one</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Jin, Jie</au><au>Hu, Chao</au><au>Yu, Mengxia</au><au>Chen, Feifei</au><au>Ye, Li</au><au>Yin, Xiufeng</au><au>Zhuang, Zhengping</au><au>Tong, Hongyan</au><au>Zuo, Zhuang</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Prognostic value of isocitrate dehydrogenase mutations in myelodysplastic syndromes: a retrospective cohort study and meta-analysis</atitle><jtitle>PloS one</jtitle><addtitle>PLoS One</addtitle><date>2014-06-17</date><risdate>2014</risdate><volume>9</volume><issue>6</issue><spage>e100206</spage><epage>e100206</epage><pages>e100206-e100206</pages><issn>1932-6203</issn><eissn>1932-6203</eissn><abstract>Recent genomic sequencing efforts have identified a number of recurrent mutations in myelodysplastic syndromes (MDS) that may contribute to disease progression and overall survival, including mutations in isocitrate dehydrogenases 1 and 2 (IDH1 and IDH2). Pretreatment bone marrow (BM) samples were acquired from mononuclear cells in 146 adult patients with de novo MDS from January 2006 to June 2013. Polymerase chain reaction (PCR) and direct sequencing were performed on exon 4 of IDH1/2 genes and mutation status was correlated with overall survival (OS) and leukemia-free survival (LFS). We then performed a meta-analysis combining previously published and current studies to explore the effect of IDH mutations on OS and LFS in MDS. In our study, somatic mutations of either IDH gene were discovered in 11 MDS patients (7.53%) and were significantly correlated with poorer OS (P = 0.007). IDH mutations were specifically associated with a poorer OS in the intermediate-1 risk group by the International Prognostic Scoring System (IPSS) (P = 0.039). In addition, we discovered decitabine achieved a better therapeutic effect compared to other treatments in IDH mutation-positive patients (P = 0.023). We identified six previous studies of IDH mutations in MDS. A meta-analysis of these studies included 111 MDS patients IDH mutations and 1671 MDS patients with wild-type IDH1/2. The hazard ratios (HRs) of OS and LFS for patients with IDH mutations were 1.62 (95% CI, 1.27-2.09) and 2.21 (95% CI, 1.48-3.30), respectively. The results from our study and the meta-analysis provide firm evidence that IDH mutations are significantly associated with poorer clinical outcomes in MDS. Identification of IDH mutations may be pivotal for better risk stratification in MDS patients and improving IPSS score. Additionally, hypomethylating agents may be an effective treatment option for MDS patients with IDH mutations.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>24936872</pmid><doi>10.1371/journal.pone.0100206</doi><oa>free_for_read</oa></addata></record>
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subjects 5-aza-2'-deoxycytidine
Adolescent
Adult
Aged
Aged, 80 and over
Analysis
Antineoplastic Combined Chemotherapy Protocols - therapeutic use
Bone marrow
Cancer therapies
Cell cycle
Cohort analysis
Dehydrogenases
Deoxyribonucleic acid
Development and progression
Disorders
DNA
DNA methylation
Enzymes
Female
Follow-Up Studies
Gene sequencing
Hematology
Hospitals
Humans
Hypoxia
IDH gene
Isocitrate dehydrogenase
Isocitrate Dehydrogenase - genetics
Leukemia
Leukocytes (mononuclear)
Male
Medical prognosis
Medical research
Medicine
Medicine and Health Sciences
Meta-analysis
Middle Aged
Mutation
Mutation - genetics
Myelodysplastic syndrome
Myelodysplastic syndromes
Myelodysplastic Syndromes - drug therapy
Myelodysplastic Syndromes - genetics
Myelodysplastic Syndromes - mortality
Oxidoreductases
Pathogenesis
Patients
Polymerase chain reaction
Prognosis
Reagents
Retrospective Studies
Survival
Survival Rate
Young Adult
title Prognostic value of isocitrate dehydrogenase mutations in myelodysplastic syndromes: a retrospective cohort study and meta-analysis
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