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Transcriptome Analysis of the Zebrafish Model of Diamond-Blackfan Anemia from RPS19 Deficiency via p53-Dependent and -Independent Pathways

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单位: [1]Huazhong Univ Sci & Technol, Key Lab Mol Biophys, Minist Educ, Coll Life Sci & Technol,Ctr Human Genome Res, Wuhan 430074, Hubei, Peoples R China [2]Chinese Acad Sci, CAS Key Lab Genome Sci, Beijing Inst Genom, Beijing, Peoples R China [3]Chinese Acad Med Sci, Inst Hematol, State Key Lab Expt Hematol, Tianjin, Peoples R China [4]Chinese Acad Med Sci, Blood Dis Hosp, Tianjin, Peoples R China [5]Peking Union Med Coll, Tianjin, Peoples R China [6]Huazhong Univ Sci & Technol, Tongji Med Coll, Hepat Surg Ctr, Tongji Hosp, Wuhan 430074, Hubei, Peoples R China
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Diamond-Blackfan anemia (DBA) is a rare inherited bone marrow failure syndrome that is characterized by pure red-cell aplasia and associated physical deformities. It has been proven that defects of ribosomal proteins can lead to this disease and that RPS19 is the most frequently mutated gene in DBA patients. Previous studies suggest that p53-dependent genes and pathways play important roles in RPS19-deficient embryos. However, whether there are other vital factors linked to DBA has not been fully clarified. In this study, we compared the whole genome RNA-Seq data of zebrafish embryos injected with RPS19 morpholino (RPS19 MO), RPS19 and p53 morpholino simultaneously (RPS19+p53 MO) and control morpholino (control). We found that genes enriched in the functions of hematological systems, nervous system development and skeletal and muscular disorders had significant differential expression in RPS19 MO embryos compared with controls. Co-inhibition of p53 partially alleviates the abnormalities for RPS19-deficient embryos. However, the hematopoietic genes, which were down-regulated significantly in RPS19 MO embryos, were not completely recovered by the co-inhibition of p53. Furthermore, we identified the genome-wide p53-dependent and -independent genes and pathways. These results indicate that not only p53 family members but also other factors have important impacts on RPS19-deficient embryos. The detection of potential pathogenic genes and pathways provides us a new paradigm for future research on DBA, which is a systematic and complex hereditary disease.

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出版当年[2012]版:
大类 | 2 区 生物
小类 | 2 区 生物学
最新[2025]版:
大类 | 3 区 综合性期刊
小类 | 3 区 综合性期刊
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出版当年[2011]版:
Q1 BIOLOGY
最新[2023]版:
Q1 MULTIDISCIPLINARY SCIENCES

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第一作者单位: [1]Huazhong Univ Sci & Technol, Key Lab Mol Biophys, Minist Educ, Coll Life Sci & Technol,Ctr Human Genome Res, Wuhan 430074, Hubei, Peoples R China
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