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Sci Rep:miR-183家族可以改变锌离子稳态

2017-08-16 AlexYang MedSci原创

miR-183家族是由miRs-183、miRs-96和miRs-182平行同源物组成,并在许多癌症中超表达,其中包括了前列腺恶性腺瘤(PCa)。之前的研究表明了miRs-183、miRs-96和miRs-182前体个体在前列腺细胞中的超表达减少了锌离子的输入,该现象也是PCa肿瘤的一个特性。锌离子在健康的前列腺中是富集的并且是其他组织浓度的10倍,并且在PCa样本中观察到了大于80%的锌离子减少

miR-183家族是由miRs-183、miRs-96和miRs-182平行同源物组成,并在许多癌症中超表达,其中包括了前列腺恶性腺瘤(PCa)。之前的研究表明了miRs-183、miRs-96和miRs-182前体个体在前列腺细胞中的超表达减少了锌离子的输入,该现象也是PCa肿瘤的一个特性。锌离子在健康的前列腺中是富集的并且是其他组织浓度的10倍,并且在PCa样本中观察到了大于80%的锌离子减少。最近,有研究人员研究了在前列腺细胞中,整个4.8kb的miR-183家族的超表达的影响,包括了包含高度保守基因组区域的基因间隔区。

研究发现,miR-183家族的超表达导致了成熟miR-183家族的超表达,表达水平达到了模仿癌症相关变化的程度。miR-183家族的超表达减少了在良性前列腺细胞、PCa异种种植和新鲜前列腺上皮样本中锌离子转运子和细胞内锌离子水平。miR-183家族的在前列腺细胞中的超表达芯片分析表明了癌症相关信号通路的富集,包括附着、迁移和创伤修复。另外,研究人员在miR-183家族间隔区域鉴定了一个活跃的次级转录起始位点。总之,该研究表明了miR-183家族的表达可以调控前列腺细胞中锌离子水平和致癌信号通路。

原始出处:

Shweta Dambal, Bethany Baumann, Tara McCray et al. The miR-183 family cluster alters zinc homeostasis in benign prostate cells, organoids and prostate cancer xenografts. Sci Rep. 09 August 2017.

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    2018-07-22 changfy
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    2018-07-16 smallant2002
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    2017-08-16 130****4638

    学习了受益匪浅

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