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Share Name | Share Symbol | Market | Type | Share ISIN | Share Description |
---|---|---|---|---|---|
Silence Therapeutics Plc | LSE:SLN | London | Ordinary Share | GB00B9GTXM62 | ORD 5P |
Price Change | % Change | Share Price | Bid Price | Offer Price | High Price | Low Price | Open Price | Shares Traded | Last Trade | |
---|---|---|---|---|---|---|---|---|---|---|
0.00 | 0.00% | 535.00 | 521.00 | 524.00 | 0.00 | 01:00:00 |
Industry Sector | Turnover | Profit | EPS - Basic | PE Ratio | Market Cap |
---|---|---|---|---|---|
0 | 0 | N/A | 0 |
TIDMSLN
RNS Number : 1506P
Silence Therapeutics PLC
15 November 2016
CRISPR/Cas9 Gene Editing Data
A single-particle RNA based approach to in vivo CRISPR/Cas9 gene editing
London, 15 November 2016 - Silence Therapeutics plc, AIM:SLN ("Silence" or "the Company") a leader in the discovery, delivery and development of novel RNA therapeutics for the treatment of serious diseases with unmet medical need, is pleased to announce significant in vivo CRISPR/Cas9 gene editing data. These data will be presented at the EuroTIDES 2016 meeting in Berlin, Germany.
Using its proprietary liver targeted lipid nanoparticle (LNP) to deliver the CRISPR/Cas9 components, Silence has confirmed the potential of its delivery platform for in vivo gene editing:
-- Sustained down-regulation of two independent secreted liver gene products in blood serum was observed for over 200 days
-- Serum levels of TTR protein were reduced by approximately 70%
-- In the cross-controlled experimental cohort, serum levels of PCSK9 protein were reduced by approximately 55%
-- Target levels in the groups treated with a guide RNA (gRNA) directed to a different gene were comparable to those of untreated animals
Ali Mortazavi, Chief Executive Officer of Silence Therapeutics, commented:
"As in RNA interference, efficient payload delivery is critical in gene editing. We have leveraged our experience in RNA delivery systems to demonstrate that our LNP can be used for CRISPR/Cas9 applications. The pre-clinical biological activity that we have observed supports future in vivo clinical applications in the gene editing space, which was initially thought to be limited to ex vivo interventions. We have shown that our LNPs are suitable for the delivery of large cargos such as RNA CRISPR/Cas9 components, and we are discussing collaborations in this area with potential partners."
Study details
The present experiment was designed as a preliminary proof-of-concept for the use of our optimised LNPs to co-deliver mRNA encoding Cas9 and gRNA targeting either the mouse TTR or PCSK9 genes. In vivo activity through gene-specific DNA disruption in mouse liver was measured by quantification of corresponding proteins in serum. Upon completion of the study, further data will become available.
Notes to Editors
About Silence Therapeutics plc
Our RNA-based technologies harness the body's natural mechanisms to create therapeutic effects within its cells. These technologies can selectively silence or replace any gene in the genome, modulating gene expression up as well as down in a variety of organs and cell types, in vivo. We have developed proprietary modifications to improve the robustness of RNA molecules, as well as advanced chemistries to enhance the effective delivery of therapeutic RNA molecules to target cells.
Enquiries:
Silence Therapeutics plc Tel: +44 (0)20 Ali Mortazavi, Chief Executive 3457 6900 Officer David Ellam, Chief Financial Officer Canaccord Genuity Limited (Nominated Tel: +44 (0)20 Adviser and Joint Broker) 7523 8350 Dr Julian Feneley/Henry Fitzgerald-O'Connor/Emma Gabriel Peel Hunt LLP (Joint Broker) Tel: +44 (0)20 James Steel/Oliver Jackson 7418 8900 Media Enquiries: Tel: +44 (0) FTI Consulting 20 3727 1000 Simon Conway/Brett Pollard/Stephanie Cuthbert
This information is provided by RNS
The company news service from the London Stock Exchange
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November 15, 2016 02:00 ET (07:00 GMT)
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