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Bioinformatics Analysis Reveals Ki-67 Specific microRNA Functions in Pediatric Embryonal Tumors

机译:生物信息学分析揭示了儿童胚胎肿瘤中Ki-67特异性microRNA功能

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Pediatric Central Nervous System (CNS) neoplasms are the second most prevalent tumors of childhood. CNS malignancies are considered as the most notorious type of tumors, due to their anatomic position manifesting an imminent threat to the patients’ life. miRNAs are molecules that play a significant role in CNS tumor biology. At the same time diagnostic markers such as Ki-67 have played an important role in CNS tumor diagnosis. In a previous study we have identified several miRNAs, common to different subtypes of pediatric embryonal CNS malignancies as well as, we have identified miRNAs that manifest significant dynamics with respect to their expression and the neoplasmatic subtype. Among the previously reported miRNAs, several have manifested significant differences with respect to Ki-67 expression. Those miRNAs, were further analyzed bioinformatically and related functions were revealed, where some of them confirmed Ki-67 role as a proliferation marker but also predicted novel miRNAs functions in pediatric embryonal tumors.
机译:小儿中枢神经系统(CNS)肿瘤是儿童中第二大流行的肿瘤。中枢神经系统恶性肿瘤被认为是最臭名昭著的肿瘤,因为它们的解剖位置对患者的生命造成了迫在眉睫的威胁。 miRNA是在CNS肿瘤生物学中起重要作用的分子。同时,Ki-67等诊断标志物在中枢神经系统肿瘤诊断中发挥了重要作用。在先前的研究中,我们确定了几种小儿胚胎中枢神经系统恶性肿瘤亚型共有的miRNA,并且鉴定了在其表达和肿瘤亚型方面表现出显着动态的miRNA。在先前报道的miRNA中,有几个在Ki-67表达方面表现出显着差异。进一步对这些miRNA进行了生物信息学分析,并揭示了相关功能,其中一些证实了Ki-67作为增殖标记物的作用,但也预测了miRNA在儿科胚胎肿瘤中的新功能。

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