Comparative profiling of genes and miRNAs expressed in the newborn, young adult, and aged human epididymides.

Comparative profiling of genes and miRNAs expressed in the newborn, young adult, and aged human epididymides.
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新生儿、年轻人和老年人附睾中表达的基因和 miRNA 的比较分析。

DOI:
10.1093/abbs/gmp116
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发表时间:
2010-02
影响因子:
3.7
通讯作者:
--
中科院分区:
生物学3区
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--
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为了了解从出生后发育到衰老过程中转录因子和 miRNA 在调节附睾基因表达中的作用,分别通过 cDNA 阵列和 miRNA 阵列分析对新生儿、年轻人和老年人附睾中表达的基因和 miRNA 进行了系统分析。新生儿附睾表达的mRNA最少,但miRNA的数量最多,而成人和老年附睾表达的mRNA最多,但miRNA的数量最少,衰老过程中mRNA和miRNA之间呈负相关。通过综合分析,根据 miRNA 和 cDNA 阵列预测了一组 miRNA 靶标。在新生儿附睾中,127 个 miRNA 被专门或优先表达,但在成人和老年附睾中分别只有 3 和 2 个 miRNA 显示出年龄富集的表达模式。本研究为进一步研究附睾基因表达的复杂调控提供了基础数据库以及新的见解和基础。
To understand roles of transcriptional factors and miRNAs in regulating gene expression in the epididymis from postnatal development through aging, systematic profiling of genes and miRNAs expressed in the newborn, young adult, and aged human epididymides was performed by cDNA array and miRNA array analysis, respectively. The newborn human epididymis expressed the fewest mRNAs but the largest number of miRNAs, whereas the adult and aged epididymides expressed the most mRNAs but the fewest miRNAs, a negative correlation between mRNAs and miRNA during aging. By integrative analysis, a set of miRNA targets were predicted based on the miRNA and cDNA arrays. In the newborn epididymis, 127 miRNAs were exclusively or preferentially expressed but only 3 and 2 miRNAs showed an age-enriched expression pattern in the adult and aged epididymides, respectively. This study provides a basic database as well as new insights and foundations for further studies on the complex regulation of gene expression in the epididymis.
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