Corporate Banner
Satellite Banner
Technology
Networks
Scientific Communities
 
Become a Member | Sign in
Home>News>This Article
  News
Return

Using microRNA Fit to a T (Cell)

Published: Friday, November 29, 2013
Last Updated: Friday, November 29, 2013
Bookmark and Share
Researchers show B cells can deliver potentially therapeutic bits of modified RNA.

Researchers at the University of California, San Diego School of Medicine have successfully targeted T lymphocytes – which play a central role in the body’s immune response – with another type of white blood cell engineered to synthesize and deliver bits of non-coding RNA or microRNA (miRNA).

The achievement in mice studies, published in this week’s online early edition of the Proceedings of the National Academy of Sciences, may be the first step toward using genetically modified miRNA for therapeutic purposes, perhaps most notably in vaccines and cancer treatments, said principal investigator Maurizio Zanetti, MD, professor in the Department of Medicine and director of the Laboratory of Immunology at UC San Diego Moores Cancer Center.

“From a practical standpoint, short non-coding RNA can be used for replacement therapy to introduce miRNA or miRNA mimetics into tissues to restore normal levels that have been reduced by a disease process or to inhibit other miRNA to increase levels of therapeutic proteins,” said Zanetti.

“However, the explosive rate at which science has discovered miRNAs to be involved in regulating biological processes has not been matched by progress in the translational arena,” Zanetti added. “Very few clinical trials have been launched to date.  Part of the problem is that we have not yet identified practical and effective methods to deliver chemically synthesized short non-coding RNA in safe and economically feasible ways.”

Zanetti and colleagues transfected primary B lymphocytes, a notably abundant type of white blood cell (about 15 percent of circulating blood) with engineered plasmid DNA (a kind of replicating but non-viral DNA), then showed that the altered B cells targeted T cells in mice when activated by an antigen – a substance that provokes an immune system response.

“This is a level-one demonstration for this new system,” said Zanetti. “The next goal will be to address more complex questions, such as regulation of the class of T cells that can be induced during vaccination to maximize their protective value against pathogens or cancer.

“There are reasons to believe that the quality of T cells in response to vaccination matters to the efficacy of protection. This could push vaccination aimed at the induction of T cell responses to a new level of accuracy, predictability and ultimately, efficacy.”

Other potential applications, he said, included targeting and repairing T cells disabled by autoimmune or inflammatory diseases.

“Another objective will be to further control targeting to tissues other than lymphoid organs. For example, cancer cells,” Zanetti said. “There is a world of untapped possibilities out there. We believe that the new idea – and the technology behind it – will carry a great distance in a variety of conditions to aid regulation of the immune system or control or prevent disease.”


Further Information

Join For Free

Access to this exclusive content is for Technology Networks Premium members only.

Join Technology Networks Premium for free access to:

  • Exclusive articles
  • Presentations from international conferences
  • Over 3,500+ scientific posters on ePosters
  • More Than 5,000+ scientific videos on LabTube
  • 35 community eNewsletters


Sign In



Forgotten your details? Click Here
If you are not a member you can join here

*Please note: By logging into TechnologyNetworks.com you agree to accept the use of cookies. To find out more about the cookies we use and how to delete them, see our privacy policy.

Related Content

Genome Sequencing May Help Avert Banana Armageddon
Researchers at the University of California, Davis, and in the Netherlands have discovered how three fungal diseases have evolved into a lethal threat to the world’s bananas.
Friday, August 12, 2016
‘Human-on-a-Chip’ Could Replace Animal Testing
Researchers are developing a “human-on-a-chip,” a miniature external replication of the human body, integrating biology and engineering with a combination of microfluidics and multi-electrode arrays.
Monday, June 13, 2016
Unveiling the Complexity of Mysterious Protein Folding
Imagine trying to reverse engineer a car when all you have is a finished product or a box full of parts — no instructions.
Wednesday, June 01, 2016
Study Identifies How Brain Connects Memories Across Time
UCLA Neuroscientists have boost ability of aging brain to recapture links between related memories.
Tuesday, May 31, 2016
Transcription Factor Isoforms Implicated in Colon Diseases
UC Riverside study explains how distribution of two forms of a transcription factor in the colon influence risk of disease.
Thursday, May 19, 2016
An E.coli Detector May be in Your Hands Soon
Hand-held device that can be used to detect a variety of pathogens—including foodborne pathogens like E. coli—at all stages in the food supply chain, from fields to restaurants may be available soon.
Monday, May 16, 2016
Fructose Alters Hundreds of Brain Genes
UCLA scientists report that diet rich in omega-3 fatty acids can reverse the damage.
Tuesday, April 26, 2016
Study Yields the Key to Effective Personalized Medicine
A team of UCLA bioengineers and surgeons has taken a major step toward making personalized medicine a reality.
Monday, April 11, 2016
Tracking RNA in Live Cells
Technique may open doors to new treatments for many conditions, from cancer to autism.
Friday, March 18, 2016
Cat Stem Cell Therapy Gives Humans Hope
By the time Bob the cat came to the UC Davis veterinary hospital, he had used up most of his nine lives.
Monday, February 08, 2016
Crowdfunding the Fight Against Cancer
From budding social causes to groundbreaking businesses to the next big band, crowdfunding has helped connect countless worthy projects with like-minded people willing to support their efforts, even in small ways. But could crowdfunding help fight cancer?
Monday, February 08, 2016
Toxic Pollutants Found in Fish Across the World's Oceans
Scripps researchers' analysis shows highly variable pollutant concentrations in fish meat.
Friday, January 29, 2016
Key Enzyme in Pierce’s Disease Grapevine Damage Uncovered
UC Davis plant scientists have identified an enzyme that appears to play a key role in the insect-transmitted bacterial infection of grapevines with Pierce’s disease, which annually costs California’s grape and wine industries more than $100 million.
Wednesday, January 13, 2016
Science Magazine Names CRISPR ‘Breakthrough of the Year’
In its year-end issue, the journal Science chose the CRISPR genome-editing technology invented at UC Berkeley 2015’s Breakthrough of the Year.
Monday, December 21, 2015
Genome Sequencing May Save California's Legendary Sugar Pine
The genome of California’s legendary sugar pine, which naturalist John Muir declared to be “king of the conifers” more than a century ago, has been sequenced by a research team led by UC Davis scientists.
Thursday, December 17, 2015
Scientific News
Point of Care Diagnostics - A Cautious Revolution
Advances in molecular biology, coupled with the miniaturization and improved sensitivity of assays and devices in general, have enabled a new wave of point-of-care (POC) or “bedside” diagnostics.
Mass Spec Technology Drives Innovation Across the Biopharma Workflow
With greater resolving power, analytical speed, and accuracy, new mass spectrometry technology and techniques are infiltrating the biopharmaceuticals workflow.
One Step Closer to Precision Medicine for Chronic Lung Disease Sufferers
A study led by University of North Carolina at Chapel Hill, and National Jewish Health, has provided evidence of links between SNPs and known COPD blood protein biomarkers.
Blood Pressure Drug May Boost Effectiveness of Lung Cancer Treatment
Researchers at Imperial College London have suggested that the blood pressure drug may make a type of lung cancer treatment more effective.
Insight into Eye Diseases
Scientists recreate zebrafish cell regeneration from retinal stem cells in mice.
New Discovery May Benefit Farmers Worldwide
Scientists have shown how a crop-microbe 'team' protect against fungal infection.
Antibodies Paving the Way to HIV Vaccine
Researchers uncover factors responsible for the formation of broadly neutralizing HIV antibodies in humans.
Designing Drugs with a Whole New Toolbox
Researchers develop methods to design small, targeted proteins with shapes not found in nature.
Protein Studies Discover Molecular Secrets
Two protein studies have mapped proteins that reveal the secrets to recycling carbon and healing cells.
Tapping Evolution to Improve Biotech Products
Researchers show how 'ancestral sequence reconstruction' can be used to guide engineering of a blood clotting protein.
Scroll Up
Scroll Down
Skyscraper Banner

Skyscraper Banner
Go to LabTube
Go to eposters
 
Access to the latest scientific news
Exclusive articles
Upload and share your posters on ePosters
Latest presentations and webinars
View a library of 1,800+ scientific and medical posters
3,500+ scientific and medical posters
A library of 2,500+ scientific videos on LabTube
5,000+ scientific videos
Close
Premium CrownJOIN TECHNOLOGY NETWORKS PREMIUM FOR FREE!