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STM:表观遗传药物或可终止疱疹病毒活性

2014-12-08 伊文 EurekAlert中文

表观遗传药物是一类通过改变基因表达而起作用的新型药物;它们能阻断动物中的疱疹病毒感染。 这些结果提示,用表观遗传药物来阻断人体内的疱疹病毒基因表达可能是让该病毒受到控制的一种新方法。不同类型的疱疹病毒会引起口周的唇疱疹及眼部(眼疱疹)和生殖器疱疹。就像是细胞中的DNA,疱疹病毒DNA被包在被称为染色质的封包中。该病毒用一种叫做LSD1的蛋白来“解开”该封包,使得它能表达有关基因。 Thomas

表观遗传药物是一类通过改变基因表达而起作用的新型药物;它们能阻断动物中的疱疹病毒感染。

这些结果提示,用表观遗传药物来阻断人体内的疱疹病毒基因表达可能是让该病毒受到控制的一种新方法。不同类型的疱疹病毒会引起口周的唇疱疹及眼部(眼疱疹)和生殖器疱疹。就像是细胞中的DNA,疱疹病毒DNA被包在被称为染色质的封包中。该病毒用一种叫做LSD1的蛋白来“解开”该封包,使得它能表达有关基因。

Thomas Kristie和同事显示,阻断LSD1的作用可阻止这一解开过程并中止病毒基因的表达。在一组小鼠、兔子和豚鼠的实验中,研究人员每日用一种叫做反苯环丙胺的LSD1-阻滞剂来治疗这些动物。它原先被用作一种抗抑郁药物,反苯环丙胺如今被用来治疗其它疾病并成为被确认为一种LSD1抑制剂的首批药物之一。

接受治疗的动物的组织中该病毒的浓度下降,且由病毒对眼感染所引起的眼部损害较少。得到治疗的动物也没有像对照组动物那样多地脱落病毒(脱落是该病毒传播能力有多大的一个良好指标,无论是否存在可看得见的病毒感染病灶。)

原始出处:

James M. Hill, Debra C. Quenelle, Rhonda D. Cardin, Jodi L. Vogel, Christian Clement, Fernando J. Bravo,Timothy P. Foster, Marta Bosch-Marce, Priya Raja, Jennifer S. Lee, David I. Bernstein, Philip R. Krause,David M. Knipe, and Thomas M. Kristie. Inhibition of LSD1 reduces herpesvirus infection, shedding, and recurrence by promotingepigenetic suppression of viral genomes. Sci Transl Med., 3 December 2014; DOI:10.1126/scitranslmed.3010643

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    2015-08-06 hlycom3356

    期待有更多研究

    0

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    2015-09-15 gdsun
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