Navigation Links
Cellectis' Meganuclease Technology Used to Efficiently Prevent Viral Infection
Date:1/19/2011

PARIS, Jan. 19, 2011 /PRNewswire/ -- Cellectis (Alternext: ALCLS), announced today that scientists from Cellectis therapeutics, the French National Center For Medical Research (CNRS) and Institut de la Vision (Paris) have used its proprietary meganucleases to successfully prevent infection of cultured cells by a Herpes Simplex virus (HSV-1). The research has just been published online by Molecular Therapy(1) (Mol. Ther. 2011, Jan 11. Epublication ahead of print).  These are the first proof-of-concept data showing that meganucleases can prevent viral infection.

In this article, scientists used HSV-1 specific meganucleases engineered by Cellectis to successfully prevent the infection of human cultured cells by HSV-1. Subsequent analysis of the treated cells using deep sequencing techniques showed that inhibition of HSV-1 infection by the anti-HSV-1 meganucleases was associated with cleavage of viral DNA (or virus clipping). When the virus is clipped at a well-chosen and specific location, this prevents its normal activity as well as its ability to replicate and spread.

"Virus clipping using meganucleases is a new therapeutic approach to tackle persistent viral infection which could have broad applications in medicine," said Pr. Jose Alain Sahel, Director of Institut de la Vision. "We are particularly interested in the potential of meganucleases in the prevention of recurrent infection during corneal transplantation and look forward to continuing our studies in this area."

"The results published in Molecular Therapy are very exciting since they open new fields of research for fighting HSV recurrent infections, a major cause of both acquired and severe loss of vision," added Dr. Marc Labetoulle, M.D., Ph.D. of CNRS.

About HSV-1 infection

HSV-1 infection is highly prevalent globally, with an estimated 70-90% of the adult population carrying the virus. The majority of seropositive individuals are unaware that they are infected due to the asymptomatic nature of their infection. But once infected, the virus remains in the body for life. HSV-1 accounts for 20 to 40% of genital herpes infections and 95% of oral, neural or ocular herpes infections. It is a leading cause of blindness throughout the world and remains a major cause of corneal graft failure. A cure for herpes has yet to be developed.

(1) Meganuclease-mediated inhibition of HSV1 infection in cultured cells

Stephanie Grosse, Nicolas Huot, Charlotte Mahiet, Sylvain Arnould, Sebastien Barradeau, Diane Le Clerre, Isabelle Chion-Sotinel, Cecile Jacqmarcq, Benoit Chapellier, Ayla Ergani, Carole Desseaux, Frederic Cedrone, Emmanuel Conseiller, Frederic Paques, Marc Labetoulle, Julianne Smith

About Cellectis

Cellectis is a pioneer in the field of genome engineering. The company designs and markets innovative tools -meganucleases. These molecular scissors enable targeted modifications to DNA, with applications in the research, biomanufacturing, agrobiotechnology and therapeutic sectors.

To date, Cellectis has formed over 20 academic research partnerships and has established more than 50 agreements with pharmaceutical laboratories, seed producers and biotech companies across the world. The company holds exclusive rights to a portfolio of over 260 patents granted or pending.

Since 2007, Cellectis has been listed on the NYSE-Euronext Alternext market (code: ALCLS) in Paris and has secured over euro 70 million in funding since inception.

More information at www.cellectis.com

Follow Cellectis on Twitter at www.twitter.com/cellectis

About Cellectis therapeutics

Established in 2008 as Cellectis genome surgery, Cellectis therapeutics is dedicated to the development of innovative therapeutic approaches using meganucleases to treat genetic diseases, cancers and persistent viral infections. Cellectis therapeutics seeks to treat patients suffering from serious diseases resistant to conventional treatment. Cellectis therapeutics is a fully owned subsidiary of Cellectis.

Disclaimer

This press release and the information contained herein do not constitute an offer to sell or subscribe, or a solicitation of an offer to buy or subscribe, for shares in Cellectis in any country. This press release contains forward-looking statements that relate to the Company's objectives. Such forward-looking statements are based on the current expectations and assumptions of the Company's management only and involve risk and uncertainties. Potential risks and uncertainties include, without limitation, whether the Company will be successful in implementing its strategies, whether there will be continued growth in the relevant market and demand for the Company's products, new products or technological developments introduced by competitors, and risks associated with managing growth. Unfavorable developments in connection with these and other risks and uncertainties described, in particular, in the Company's prospectus prepared in connection with its IPO and on which the French Autorite des marches financiers ("AMF") granted its visa no. 07-023 on January 22, 2007, could cause the Company to fail to achieve the objectives expressed by the forward-looking statements above.


'/>"/>
SOURCE Cellectis therapeutics
Copyright©2010 PR Newswire.
All rights reserved

Related biology technology :

1. Monsanto Licenses Use of Cellectis Innovative Genome Modification Technology
2. Cellectis to Present at the American Society of Gene & Cell Therapy Annual Meeting
3. Cellectis to Present at the FASEB Summer Research Conference on Genome Engineering
4. Cellectis bioresearch Establishes The Genome Customization Award (TGCA)
5. Taconics Litigation Contesting License Termination By Cellectis Is Dismissed
6. Cellectis Unveils Its New Corporate Website
7. Cellectis Bioresearch Announces Availability of Research Kits Through New Online E-Store
8. Cellectis Plant Sciences Licenses Plant Transformation Technology From Midwest Oilseeds
9. Cellectis and the Center for iPS Cells Research and Application Enter Collaboration
10. Cellectis Plant Sciences Licenses Plant Transformation Technology for Corn and Rice
11. Cellectis bioresearch Signs Non-Exclusive License With Evrogen for Access to Fluorescent Proteins
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/22/2017)... ... March 21, 2017 , ... Functional near-infrared spectroscopy (fNIRS), an optical imaging tool ... way to track the brain’s response to acute pain in adults and infants. , ... ,” published today in the journal Neurophotonics , by SPIE, the international ...
(Date:3/22/2017)... 22, 2017  RXi Pharmaceuticals Corporation (NASDAQ: RXII), ... address significant unmet medical needs, today announced ... will present at the 5th Annual Cancer BioPartnering ... platform to present to and meet with thought ... biotech companies as well as institutional investors. This ...
(Date:3/20/2017)... CA (PRWEB) , ... March 20, 2017 , ... ... therapies for gastrointestinal (GI) disorders, today announced that it has entered into an ... for therapies in inflammatory bowel disease including Necrotizing Enterocolitis (rare orphan disease) as ...
(Date:3/20/2017)... Foreside, Maine (PRWEB) , ... March 20, 2017 ... ... announce its VALIDATE® HEPARIN calibration verification / linearity test kit has received US ... systems. The VALIDATE® HEPARIN kit evaluates Heparin Anti-Xa activity in a human ...
Breaking Biology Technology:
(Date:3/2/2017)... YORK , March 2, 2017 Summary ... better understand Perrigo and its partnering interests and activities since ... ... Partnering Deals and Alliance since 2010 report provides an in-depth ... leading life sciences companies. On demand company reports ...
(Date:3/2/2017)... 2017 Australian stem cell and regenerative medicine ... signed an agreement with the Monash Lung Biology Network, ... Institute and Department of Pharmacology at Monash University, ... study to support the use of Cymerus™ mesenchymal stem ... Asthma is a chronic, long term lung condition ...
(Date:2/28/2017)... , February 28, 2017 News solutions for ... ... from 14 to 16 March, Materna will present ... show how seamless travel is a real benefit for passengers. ... biometrics to their passenger touch point solutions to take passengers through ...
Breaking Biology News(10 mins):