Global gene profiling of VCP-associated inclusion body myopathy.

Global gene profiling of VCP-associated inclusion body myopathy.
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DOI:
10.1111/j.1752-8062.2012.00407.x
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发表时间:
2012-06
期刊:
Clinical and translational science
影响因子:
--
通讯作者:
Kimonis VE
Kimonis VE
中科院分区:
其他
文献类型:
--
作者:
Nalbandian A;Ghimbovschi S;Radom-Aizik S;Dec E;Vesa J;Martin B;Knoblach S;Smith C;Hoffman E;Kimonis VE

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包含体肌病伴佩吉特骨病和额颞叶痴呆(IBMPFD)是一种常染色体显性遗传病,由染色体9 p12 -13上的Valosin Containing Protein(VCP)基因突变引起。患者表现出肢带肌无力,最终发展为涉及呼吸肌,并死于呼吸和心力衰竭。这是首次利用基因芯片技术分析骨骼肌肌病中的关键分子介质和信号级联反应,以期了解IBMPFD的基因表达异常和分子机制,并寻找新的治疗靶点。我们使用人类基因组阵列微阵列技术确定患者及其一级亲属股外侧肌的表达谱。我们分析了大卫的基因注释,并确定了差异失调的基因,这些基因在几种新的生物学途径中发挥作用,包括肌动蛋白细胞骨架的调节,ErbB信号传导,癌症,以及自噬和溶酶体信号传导的调节,VCP疾病中已知的中断途径。在这份报告中,我们提供了来自第一个全球微阵列的数据,分析了IBMPFD患者的肌肉,并阐明了失调的通路,以进一步了解疾病的发病机制并发现潜在的治疗方法。
Inclusion body myopathy associated with Paget disease of bone and frontotemporal dementia (IBMPFD) is an autosomal dominant disorder caused by mutations in the Valosin Containing Protein (VCP) gene on chromosome 9p12-13. Patients demonstrate limb girdle muscle weakness, which eventually progresses to involve respiratory muscles, and death from respiratory and cardiac failure. This is the first investigation to analyze key molecular mediators and signaling cascades in skeletal muscle causing myopathy by global gene microarray in hopes of understanding the dysregulated genes and molecular mechanisms underlying IBMPFD and the hope of finding novel therapeutic targets. We determined expression profiles using Human Genome Array microarray technology in Vastus lateralis muscles from patients and their first degree relatives. We analyzed gene annotations by DAVID and identified differentially dysregulated genes with roles in several novel biological pathways, including regulation of actin cytoskeleton, ErbB signaling, cancer, in addition to regulation of autophagy, and lysosomal signaling, known disrupted pathways in VCP disease. In this report, we present data from the first global microarray analyzing IBMPFD patient muscles and elucidating dysregulated pathways to further understand the pathogenesis of the disease and discover potential therapeutics.
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