Photocleavable morpholino oligos with integral photolinkers for modulating the activity of any selected gene transcript by exposure to light
申请人:Li Yong-Fu
公开号:US20130053556A1
公开(公告)日:2013-02-28
Morpholinos are widely used to block the activity of selected single-stranded genetic sequences. This invention comprises Morpholinos containing one or more integral photolinkers (Photo-Morpholinos) wherein the photolinkers are directly incorporated into the sequence of a Morpholino, where the photolinker has a size and structure which emulates the size and structure of a Morpholino subunit. This integrated photolinker design substantially simplifies and reduces cost of production relative to earlier photocleavable compositions.
The invention also comprises use of these Photo-Morpholinos for modulating the expression of any selected gene transcript at any selected time and at any selected site simply by exposure to light. These Photo-Morpholinos afford a new use wherein a gene transcript is rendered inactive by contacting with a Photo-Morpholino—and then later exposure to light cleaves the Photo-Morpholino to inactive fragments—thereby reactivating that previously inactivated gene transcript.
Morpholinos广泛用于阻断选定的单链遗传序列的活性。本发明包括含有一个或多个整体光链接剂(光致Morpholinos)的Morpholinos,其中光链接剂直接被并入Morpholino序列中,光链接剂的大小和结构模拟了Morpholino亚单位的大小和结构。这种集成的光链接剂设计相对于早期的光解组成大大简化和降低了生产成本。本发明还包括使用这些光致Morpholinos在任何选定的时间和任何选定的位置通过光照来调节任何选定的基因转录本的表达。这些光致Morpholinos提供了一种新的用途,即通过接触光致Morpholino使基因转录本失活,然后稍后通过光照裂解光致Morpholino以失活的碎片,从而重新激活先前失活的基因转录本。