Corporate Banner
Satellite Banner
Stem Cells, Cellular Therapy & Biobanking
>
Scientific Community
 
Become a Member | Sign in
Home>News>This Article
  News
Return

Modified Stem Cells Rejuvenate Aging Heart Cells

Published: Tuesday, July 24, 2012
Last Updated: Tuesday, July 24, 2012
Bookmark and Share
Damaged and aged heart tissue of older heart failure patients was rejuvenated by stem cells modified by scientists.

The research could one day lead to new treatments for heart failure patients, researchers said.

"Since patients with heart failure are normally elderly, their cardiac stem cells aren't very healthy," said Sadia Mohsin, Ph.D., one of the study authors and a post-doctoral research scholar at San Diego State University's Heart Institute in San Diego, Cal. "We modified these biopsied stem cells and made them healthier. It is like turning back the clock so these cells can thrive again."

Modified human stem cells helped the signaling and structure of the heart cells, which were biopsied from elderly patients. Researchers modified the stem cells in the laboratory with PIM-1, a protein that promotes cell survival and growth.

Cells were rejuvenated when the modified stem cells enhanced activity of an enzyme called telomerase, which elongates telomere length. Telomeres are "caps" on the ends of chromosomes that facilitate cell replication. Aging and disease results when telomeres break off.

"There is no doubt that stem cells can be used to counter the aging process of cardiac cells caused by telomere degradation," Mohsin said. The technique increased telomere length and activity, as well as increasing cardiac stem cell proliferation, all vital steps in combating heart failure.

While human cells were used, the research was limited to the laboratory. Researchers have tested the technique in mice and pigs and found that telomere lengthening leads to new heart tissue growth in just four weeks.

"Modifying aged human cardiac cells from elderly patients adds to the cell's ability to regenerate damaged heart muscle, making stem cell engineering a viable option," Mohsin said. "This is an especially exciting finding for heart failure patients. Right now we can only offer medication, heart transplantation or stem cell therapies with modest regenerative potential, but PIM-1 modification offers a significant advance for clinical treatment."


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 4,000+ scientific posters on ePosters
  • More than 5,300+ 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

Bayer, AHA Cardiovascular Collaboration
Bayer and the American Heart Association collaborate to advance cardiovascular research in areas of unmet medical need.
Wednesday, November 16, 2016
Stem Cell “Homing” Signal May Help Treat Heart Failure Patients
In the first human study of its kind, researchers activated heart failure patients’ stem cells with gene therapy to improve their symptoms, heart function and quality of life.
Monday, February 25, 2013
Adult Stem Cells from Liposuction used to Create Blood Vessels in the Lab
Researchers used stem cells from fat to grow new small-diameter blood vessels in the laboratory, which could help patients undergoing procedures such as heart bypass surgery.
Tuesday, July 31, 2012
Genetically Engineered Cardiac Stem Cells Repaired Damaged Mouse Heart
Researchers used cardiac stem cells from patients receiving mechanical assist device pumps to help their failing hearts.
Wednesday, July 27, 2011
Scientific News
Stem Cells in Drug Discovery
Potential Source of Unlimited Human Test Cells, but Roadblocks Remain.
Allen Institute Releases Gene Edited Human Stem Cell Lines
The Allen Cell Collection, a publicly available collection of gene edited pluripotent stem cells, has been made available by the Allen Institute.
Designer Cell Fate Switches Could Streamline Stem Cell Biology
Researchers develop new method of reprogramming cells between cell types in a more efficient way than before.
Improving Drug Production with Computer Model
A model has been developed that can be used to improve and accelerate the production of biotherapeutics, cancer drugs, and vaccines.
Defining Immortality of Stem Cells
Researchers defined the mechanisms underlying increased protein quality control of pluripotent stem cells.
BioCision Forms MedCision
The new company will focus on technologies for the management and automation of vital clinical processes.
Stem Cells Police Themselves to Reduce Scarring
Scientists have discovered stem cells in muscle fibers change gene expressions to respond to injury.
Regenerating Diseased Hearts
Researchers from the University of Otago have probed the potential of adult stem cell types to repair diseased hearts.
Enhancing CRISPR to Explore Further
Researchers have developed sOPTiKO, a more efficient and controllable CRISPR genome editing platform.
Bright Red Fluorescent Protein Created
Scientists have created a bright red, fluorescent protein that could be used to track essential cellular processes.
Skyscraper Banner

SELECTBIO Market Reports
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
4,000+ scientific and medical posters
A library of 2,500+ scientific videos on LabTube
5,300+ scientific videos
Close
Premium CrownJOIN TECHNOLOGY NETWORKS PREMIUM FOR FREE!