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    The myelodysplastic syndrome (MDS) represents a heterogeneous group of clonal hematologic stem cell disorders with the characteristic of ineffective hematopoiesis leading to low blood counts, and a risk of progression to acute myeloid leukemia (AML). To understand specific molecular characteristics of different MDS subtypes with del(5q), we analyzed the gene expression profiles of CD34+ cells from MDS patients of different databases and its enriched pathways. 44 genes, such as MME and RAG1, and eight related pathways were identified to be commonly changed, indicating their conserved roles in MDS development. Additionally, U43604 was identified to be specifically changed in three subtypes with del(5q), including refractory anemia (RA), refractory anemia with ringed sideroblasts (RARS) and refractory anemia with excess blasts (RAEB). C10orf10 and CD79B were specifically changed in RA patients with del(5q), while POU2AF1 were in RARS patients with del(5q). We also analyzed specific pathways of MDS subtypes, such as "Glycosaminoglycan biosynthesis-chondroitin sulfate" which was specific identified in RARS patients. Importantly, those findings can be validated well using another MDS database. Taken together, our analysis identified specific genes and pathways associated with different MDS subtypes with del(5q). Copyright © 2017. Published by Elsevier Ltd.


    Ruiming Ou, Jing Huang, Huijuan Shen, Zhi Liu, Yangmin Zhu, Qi Zhong, Liling Zheng, Mengdong Yao, Yanling She, Shanyao Zhou, Rui Chen, Cheng Li, Qing Zhang, Shuang Liu. Transcriptome analysis of CD34+ cells from myelodysplastic syndrome patients. Leukemia research. 2017 Nov;62:40-50

    PMID: 28982058

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