• Resources
  • Blog
  • Journalists
  • Webcasts
  • Data Privacy
  • Français
  • my CNW 
    • Login
    • Register
  • Client Login 
    • Online Member Centre
    • Next Gen Communications Cloud
    • Cision Communications Cloud®
  • Sign Up
  • Send a Release
Cision Canada
  • News
  • Products
  • Contact
When typing in this field, a list of search results will appear and be automatically updated as you type.

Searching for your content...

No results found. Please change your search terms and try again.
Advanced Search
  • News in Focus
      • Browse News Releases

      • All News Releases
      • All Public Company
      • News Releases Overview

      • Multimedia Gallery

      • All Multimedia
      • All Photos
      • All Videos
      • Multimedia Gallery Overview

      • Trending Topics

      • All Trending Topics
  • Business
      • Auto & Transportation

      • All Automotive & Transportation
      • Aerospace, Defense
      • Air Freight
      • Airlines & Aviation
      • Automotive
      • Maritime & Shipbuilding
      • Railroads and Intermodal Transportation
      • Supply Chain/Logistics
      • Transportation, Trucking & Railroad
      • Travel
      • Trucking and Road Transportation
      • Auto & Transportation Overview

      • View All Auto & Transportation

      • Business Technology

      • All Business Technology
      • Blockchain
      • Broadcast Tech
      • Computer & Electronics
      • Computer Hardware
      • Computer Software
      • Data Analytics
      • Electronic Commerce
      • Electronic Components
      • Electronic Design Automation
      • Financial Technology
      • High Tech Security
      • Internet Technology
      • Nanotechnology
      • Networks
      • Peripherals
      • Semiconductors
      • Business Technology Overview

      • View All Business Technology

      • Entertain­ment & Media

      • All Entertain­ment & Media
      • Advertising
      • Art
      • Books
      • Entertainment
      • Film and Motion Picture
      • Magazines
      • Music
      • Publishing & Information Services
      • Radio & Podcast
      • Television
      • Entertain­ment & Media Overview

      • View All Entertain­ment & Media

      • Financial Services & Investing

      • All Financial Services & Investing
      • Accounting News & Issues
      • Acquisitions, Mergers and Takeovers
      • Banking & Financial Services
      • Bankruptcy
      • Bond & Stock Ratings
      • Conference Call Announcements
      • Contracts
      • Cryptocurrency
      • Dividends
      • Earnings
      • Earnings Forecasts & Projections
      • Financing Agreements
      • Insurance
      • Investments Opinions
      • Joint Ventures
      • Mutual Funds
      • Private Placement
      • Real Estate
      • Restructuring & Recapitalization
      • Sales Reports
      • Shareholder Activism
      • Shareholder Meetings
      • Stock Offering
      • Stock Split
      • Venture Capital
      • Financial Services & Investing Overview

      • View All Financial Services & Investing

      • General Business

      • All General Business
      • Awards
      • Commercial Real Estate
      • Corporate Expansion
      • Earnings
      • Environmental, Social and Governance (ESG)
      • Human Resource & Workforce Management
      • Licensing
      • New Products & Services
      • Obituaries
      • Outsourcing Businesses
      • Personnel Announcements
      • Real Estate Transactions
      • Residential Real Estate
      • Small Business Services
      • Socially Responsible Investing
      • Surveys, Polls and Research
      • Trade Show News
      • General Business Overview

      • View All General Business

  • Science & Tech
      • Consumer Technology

      • All Consumer Technology
      • Artificial Intelligence
      • Blockchain
      • Cloud Computing/Internet of Things
      • Computer Electronics
      • Computer Hardware
      • Computer Software
      • Consumer Electronics
      • Cryptocurrency
      • Data Analytics
      • Electronic Commerce
      • Electronic Gaming
      • Financial Technology
      • Mobile Entertainment
      • Multimedia & Internet
      • Peripherals
      • Social Media
      • STEM (Science, Tech, Engineering, Math)
      • Supply Chain/Logistics
      • Wireless Communications
      • Consumer Technology Overview

      • View All Consumer Technology

      • Energy & Natural Resources

      • All Energy
      • Alternative Energies
      • Chemical
      • Electrical Utilities
      • Gas
      • General Manufacturing
      • Mining
      • Mining & Metals
      • Oil & Energy
      • Oil and Gas Discoveries
      • Utilities
      • Water Utilities
      • Energy & Natural Resources Overview

      • View All Energy & Natural Resources

      • Environ­ment

      • All Environ­ment
      • Conservation & Recycling
      • Environmental Issues
      • Environmental Policy
      • Environmental Products & Services
      • Green Technology
      • Natural Disasters
      • Environ­ment Overview

      • View All Environ­ment

      • Heavy Industry & Manufacturing

      • All Heavy Industry & Manufacturing
      • Aerospace & Defense
      • Agriculture
      • Chemical
      • Construction & Building
      • General Manufacturing
      • HVAC (Heating, Ventilation and Air-Conditioning)
      • Machinery
      • Machine Tools, Metalworking and Metallurgy
      • Mining
      • Mining & Metals
      • Paper, Forest Products & Containers
      • Precious Metals
      • Textiles
      • Tobacco
      • Heavy Industry & Manufacturing Overview

      • View All Heavy Industry & Manufacturing

      • Telecomm­unications

      • All Telecomm­unications
      • Carriers and Services
      • Mobile Entertainment
      • Networks
      • Peripherals
      • Telecommunications Equipment
      • Telecommunications Industry
      • VoIP (Voice over Internet Protocol)
      • Wireless Communications
      • Telecomm­unications Overview

      • View All Telecomm­unications

  • Lifestyle & Health
      • Consumer Products & Retail

      • All Consumer Products & Retail
      • Animals & Pets
      • Beers, Wines and Spirits
      • Beverages
      • Bridal Services
      • Cannabis
      • Cosmetics and Personal Care
      • Fashion
      • Food & Beverages
      • Furniture and Furnishings
      • Home Improvement
      • Household, Consumer & Cosmetics
      • Household Products
      • Jewelry
      • Non-Alcoholic Beverages
      • Office Products
      • Organic Food
      • Product Recalls
      • Restaurants
      • Retail
      • Supermarkets
      • Toys
      • Consumer Products & Retail Overview

      • View All Consumer Products & Retail

      • Entertain­ment & Media

      • All Entertain­ment & Media
      • Advertising
      • Art
      • Books
      • Entertainment
      • Film and Motion Picture
      • Magazines
      • Music
      • Publishing & Information Services
      • Radio & Podcast
      • Television
      • Entertain­ment & Media Overview

      • View All Entertain­ment & Media

      • Health

      • All Health
      • Biometrics
      • Biotechnology
      • Clinical Trials & Medical Discoveries
      • Dentistry
      • FDA Approval
      • Fitness/Wellness
      • Health Care & Hospitals
      • Health Insurance
      • Infection Control
      • International Medical Approval
      • Medical Equipment
      • Medical Pharmaceuticals
      • Mental Health
      • Pharmaceuticals
      • Supplementary Medicine
      • Health Overview

      • View All Health

      • Sports

      • All Sports
      • General Sports
      • Outdoors, Camping & Hiking
      • Sporting Events
      • Sports Equipment & Accessories
      • Sports Overview

      • View All Sports

      • Travel

      • All Travel
      • Amusement Parks and Tourist Attractions
      • Gambling & Casinos
      • Hotels and Resorts
      • Leisure & Tourism
      • Outdoors, Camping & Hiking
      • Passenger Aviation
      • Travel Industry
      • Travel Overview

      • View All Travel

  • Policy & Public Interest
      • Policy & Public Interest

      • All Policy & Public Interest
      • Advocacy Group Opinion
      • Animal Welfare
      • Canadian Federal Government
      • Canadian Municipal Government
      • Canadian Provincial Government
      • Corporate Social Responsibility
      • Domestic Policy
      • Economic News, Trends, Analysis
      • Education
      • Environmental
      • European Government
      • FDA Approval
      • Federal and State Legislation
      • Federal Executive Branch & Agency
      • Foreign Policy & International Affairs
      • Homeland Security
      • Labor & Union
      • Legal Issues
      • Natural Disasters
      • Not For Profit
      • Patent Law
      • Public Safety
      • Trade Policy
      • Policy & Public Interest Overview

      • View All Policy & Public Interest

  • People & Culture
      • People & Culture

      • All People & Culture
      • Aboriginal, First Nations & Native American
      • African American
      • Asian American
      • Children
      • Diversity, Equity & Inclusion
      • Hispanic
      • Lesbian, Gay & Bisexual
      • Men's Interest
      • People with Disabilities
      • Religion
      • Senior Citizens
      • Veterans
      • Women
      • People & Culture Overview

      • View All People & Culture

  • Advanced Search
  • Overview
  • Cision Communications Cloud®
  • Monitoring
  • Distribution
  • Multimedia
  • Guaranteed Paid Placement
  • Analytics
  • IR
  • Become a Client
  • Request a Demo
  • Editorial Bureaus
  • Partnerships
  • General Enquiries
  • Media
  • Worldwide Offices
  • Cision Canada
  • Send a Release
  • FR
    • Phone

    • 877-269-7890 from 8 AM - 10 PM ET

    • ALL CONTACT INFO
    • Contact Cision

      877-269-7890
      from 8 AM - 10 PM ET

  • Send a Release
  • Sign Up
  • Resources
  • Blog
  • Journalists
  • Webcasts
  • GDPR
  • News in Focus
    • Browse All News
    • Multimedia Gallery
    • Trending Topics
  • Business
    • Auto & Transportation
    • Business Technology
    • Entertain­ment & Media
    • Financial Services & Investing
    • General Business
  • Science & Tech
    • Consumer Technology
    • Energy & Natural Resources
    • Environ­ment
    • Heavy Industry & Manufacturing
    • Telecomm­unications
  • Lifestyle & Health
    • Consumer Products & Retail
    • Entertain­ment & Media
    • Health
    • Sports
    • Travel
  • Policy & Public Interest
    • Policy & Public Interest
  • People & Culture
    • People & Culture
  • Send a Release
  • Sign Up
  • Resources
  • Blog
  • Journalists
  • Webcasts
  • GDPR
  • Overview
  • Cision Communications Cloud®
  • Monitoring
  • Distribution
  • Multimedia
  • Guaranteed Paid Placement
  • Analytics
  • IR
  • Send a Release
  • Sign Up
  • Resources
  • Blog
  • Journalists
  • Webcasts
  • GDPR
  • Become a Client
  • Request a Demo
  • Editorial Bureaus
  • Partnerships
  • General Enquiries
  • Media
  • Worldwide Offices
  • Send a Release
  • Sign Up
  • Resources
  • Blog
  • Journalists
  • Webcasts
  • GDPR

Rare disease in children: the key role of a protein revealed

Logo: Institut national de la recherche (INRS) (CNW Group/Institut National de la recherche scientifique (INRS))

News provided by

Institut National de la recherche scientifique (INRS)

Feb 27, 2020, 14:26 ET

Share this article

Share this article


INRS scientists take one step closer towards a better understanding of Batten disease

LAVAL, QC, Feb. 27, 2020 /CNW Telbec/ - Professor Stéphane Lefrançois, a researcher at the Institut National de la Recherche Scientifique (INRS), is working on Batten disease, a neurodegenerative genetic disease that primarily affects children. His research focuses on the most common form of the disease – Batten CLN 3 – which is caused by mutations in the protein of the same name and for which there is still no cure.

Continue Reading
A team led by Professor Lefrançois at INRS takes one step closer towards a better understanding of Batten disease (CNW Group/Institut National de la recherche scientifique (INRS))
A team led by Professor Lefrançois at INRS takes one step closer towards a better understanding of Batten disease (CNW Group/Institut National de la recherche scientifique (INRS))

Children affected by Batten disease are born with no symptoms and develop normally, learning to walk, talk, and interact with others. Between 5 and 8 years of age, however, they start to regress. "The first symptom that leads parents to seek medical attention for their child is a loss of vision caused by retinal degeneration. This is followed by cognitive regression characterized by speech and mobility impairment. The life expectancy for people with the disease is usually around 30 years," explains Lefrançois, who has been working on Batten disease for more than ten years.

A key protein

Professor Lefrançois and his team in Laval are delving into the cellular biology of the CLN3 protein, which has been synthesized with the help of its namesake gene, in order to better understand the protein's function and identify therapeutic targets. They recently published findings about a key role played by CLN3 in the Journal of Cell Science. In the absence of the disease, CLN3 ensures a constant supply of proteins to the endosome, an intracellular compartment that serves as a sorting centre for proteins within the cell. 

"Under this cellular process, a receptor acts as a truck that carries proteins from the Golgi apparatus, the production factory, to the sorting centre. Thanks to CLN3, this truck normally returns to the Golgi to pick up another load of proteins in an ongoing cycle," the researcher explains. "In the presence of the mutations, however, the truck doesn't make the return trip. Instead, it is redirected to the lysosomes, where it's broken down as cellular waste." 

Because the receptor is degraded, the proteins vital to lysosome function can't reach their destination. In consequence, these organelles are no longer able to break down cellular waste, so they accumulate and cause cellular degeneration. "We think that children with the disease develop normally in their early years because their cells compensate by making more trucks. It's possible that the cells can't keep up, so the system becomes dysfunctional and starts to degrade," adds Professor Lefrançois.

Professor Lefrançois is working with a team of European researchers to re-establish normal CLN3 function with a promising drug. The aim is to prevent degradation of the receptor so it can continue carrying proteins. 

Worldwide, it is estimated that one person in 100,000 has Batten's disease in all its forms. 

About the study

The article entitled CLN3 regulates endosomal function by modulating Rab7A effector interactions, by Seda Yasa, Graziana Modica, Etienne Sauvageau, Abuzar Kaleem, Guido Hermey, Stephane Lefrancois, was published in the Journal of Cell Science. The research was supported by the Joint Programme on Neurodegenerative Diseases Grant, the Canadian Institutes of Health Research, the Canadian Foundation for Innovation, the National Contest for Life Foundation Germany and by the Deutsche Forschungsgemeinschaft, the Fondation Armand-Frappier et du Fonds de recherche du Québec – Santé (FRQS).
DOI : 10.1242/jcs.234047

About the INRS
The Institut National de la Recherche Scientifique (INRS) is the only institution in Québec dedicated exclusively to graduate level university research and training. The impacts of its faculty and students are felt around the world. INRS proudly contributes to societal progress in partnership with industry and community stakeholders, both through its discoveries and by training new researchers and technicians to deliver scientific, social, and technological breakthroughs in the future.

SOURCE Institut National de la recherche scientifique (INRS)

For further information: Audrey-Maude Vézina, Communications, INRS, 418-254-2156 (cell), [email protected]

Related Links

http://www.inrs.ca/

Modal title

Organization Profile

Institut National de la recherche scientifique (INRS)

    Also from this source

  • Research at the heart of training and partnerships

  • A new ultrafast camera with multiple applications

  • Raising awareness of endocrine disruptors among young people

Contact Cision

  • 877-269-7890
    from 8 AM - 10 PM ET

  • Become a Client
  • Request a Demo
  • Editorial Bureaus
  • Partnerships
  • General Enquiries
  • Media
  • Worldwide Offices

Products

  • Cision Communications Cloud®
  • Media Monitoring
  • Content Distribution
  • Multimedia Distribution
  • Measurement & Analytics
  • Investor Relations

About

  • About Cision Canada
  • About Cision
  • Media Partners
  • Careers
  • Accessibility Statement

My Services

  • All News Releases
  • Online Member Centre
  • Next Gen Communications Cloud
  • Cision Communications Cloud®
  • my CNW

Contact Cision

Products

About

My Services
  • All News Releases
  • Online Member Centre
  • Next Gen Communications Cloud
  • Cision Communications Cloud
  • my CNW
877-269-7890
from 8 AM - 10 PM ET
  • Terms of Use
  • Information Security Policy
  • Site Map
  • Cookie Settings
  • Accessibility Statement
Copyright © 2023 CNW Group Ltd. All Rights Reserved. A Cision company.