Results triple researchers' projections with use of adult stem cells for heart failure
Dr. Roberto Bolli, left, and Dr. Sohail Ikram of the University of Louisville prepare to infuse patient Mike Jones with adult cardiac stem cells. Jones was the first enrollee in the SCIPIO trial. Credit: University of Louisville
Patients suffering from heart failure due to a previous myocardial infarction showed an average of 12 percent improvement one year following an investigative treatment that involved infusing them with their own stem cells. The results triple the 4 percent improvement average the researchers projected for the Phase I trial.
Results of the trial are published today (Nov. 14) in The Lancet and concurrently presented at the American Heart Association Scientific Sessions in Orlando, Fla. They are the first report of administering subjects' own cardiac stem cells in humans; previous studies have used stem cells harvested from bone marrow.
The research team, led by Dr. Roberto Bolli of the University of Louisville and Dr. Piero Anversa at Brigham and Women's Hospital/Harvard Medical School in Boston, conducted the trial, called "SCIPIO" an acronym for "Cardiac Stem Cells in Patients with Ischemic CardiOmyopathy."
The 16 SCIPIO patients were diagnosed with heart failure following a myocardial infarction and had a left ventricular ejection fraction (LVEF) of 40 percent or lower. LVEF is a standard measure of the heart's pumping capability; it measures how much blood is ejected from the left ventricle during a heartbeat. The normal LVEF is 50 percent or higher.
The investigators harvested cardiac stem cells, referred to as "c-kit positive" cells because they express the c-kit protein on their surface, from the patients during coronary artery bypass surgery conducted at Jewish Hospital in Louisville. The stem cells were purified in Anversa's lab in Boston and allowed to grow. Once an adequate number of stem cells were produced about one million Bolli's team in Louisville reintroduced them into the region of the patient's heart that had been scarred by the infarction.
In designing the trial, Bolli and Anversa examined data from previous studies of bone marrow-derived stem cells and projected an average improvement in LVEF of 4-5 percent for all patients. They witnessed an 8.5 percent improvement just four months following the reintroduction of stem cells and 12 percent after one year.
The researchers also conducted MRI studies on the patients' hearts and saw that the size of the scarred regions had decreased a result that seemingly begins to disprove the long-held belief that once scarring occurs, the heart tissue is forever dead.
Bolli who is lead author of The Lancet article and presenter of the data at the Scientific Sessions says that the adult stem cell protocol could become one of the greatest advancements in cardiac treatment in a generation.
"The results are striking," Bolli said. "While we do not yet know why the improvement occurs, we have no doubt now that ejection fraction increased and scarring decreased. If these results hold up in future studies, I believe this could be the biggest revolution in cardiovascular medicine in my lifetime."
His colleague Anversa has been studying cardiac stem cells' potential to regenerate myocardial cells damaged from heart failure since the 1990s. "Seeing these cells given successfully to very sick patients is the most rewarding experience that a physician-scientist can have in his or her lifetime," said Anversa, noting that the work was a major team effort that involved several senior members in both his and Bolli's laboratories.
The SCIPIO trial was funded by a grant from the National Heart, Lung and Blood Institute. The researchers reiterated that these findings are preliminary and larger-scale studies must be undertaken before the therapy can be widely used.
Bolli already is looking forward to a larger study, he said. "We plan to apply for funding to conduct a Phase II multi-center trial," he said.
More information: www.thelancet.org/
Provided by University of Louisville
- Roberto Bolli discusses cardiac stem cell treatment for heart failure at Cannon Lecture Apr 10, 2011 | not rated yet | 0
- Stem cells to be injected into the heart Aug 26, 2005 | not rated yet | 0
- Adding stem cells to common bypass surgery may reduce heart failure Apr 05, 2011 | not rated yet | 0
- Delayed stem cell therapy following heart attack is safe but not effective Nov 14, 2011 | not rated yet | 0
- Aged, damaged hearts yield stem cells that could treat heart failure Nov 17, 2010 | not rated yet | 0
- Motion perception revisited: High Phi effect challenges established motion perception assumptions Apr 23, 2013 | 3 / 5 (2) | 2
- Anything you can do I can do better: Neuromolecular foundations of the superiority illusion (Update) Apr 02, 2013 | 4.5 / 5 (11) | 5
- The visual system as economist: Neural resource allocation in visual adaptation Mar 30, 2013 | 5 / 5 (2) | 9
- Separate lives: Neuronal and organismal lifespans decoupled Mar 27, 2013 | 4.9 / 5 (8) | 0
- Sizing things up: The evolutionary neurobiology of scale invariance Feb 28, 2013 | 4.8 / 5 (10) | 14
Pressure-volume curve: Elastic Recoil Pressure don't make sense
May 18, 2013 From pressure-volume curve of the lung and chest wall (attached photo), I don't understand why would the elastic recoil pressure of the lung is...
If you became brain-dead, would you want them to pull the plug?
May 17, 2013 I'd want the rest of me to stay alive. Sure it's a lousy way to live but it beats being all-the-way dead. Maybe if I make it 20 years they'll...
MRI bill question
May 15, 2013 Dear PFers, The hospital gave us a $12k bill for one MRI (head with contrast). The people I talked to at the hospital tell me that they do not...
Ratio of Hydrogen of Oxygen in Dessicated Animal Protein
May 13, 2013 As an experiment, for the past few months I've been consuming at least one portion of Jell-O or unflavored Knox gelatin per day. I'm 64, in very...
Alcohol and acetaminophen
May 13, 2013 Edit: sorry for the typo in the title , can't edit I looked around on google quite a bit and it's very hard to find precise information on the...
Marie Curie's leukemia
May 13, 2013 Does anyone know what might be the cause of Marie Curie's cancer
- More from Physics Forums - Medical Sciences
More news stories
In their quest to learn more about the variability of cells between and within tissues, biomedical scientists have devised tools capable of simultaneously measuring dozens of characteristics of individual ...
Medical research 1 hour ago | 5 / 5 (1) | 0 |
In 2008 researchers from the University of Southern Denmark showed that the drug thioridazine, which has previously been used to treat schizophrenia, is also a powerful weapon against antibiotic-resistant bacteria such as ...
Medical research May 17, 2013 | 3.7 / 5 (3) | 0 |
Scientists investigating the interaction of a group of proteins in the brain responsible for protecting nerve cells from damage have identified a new target that could increase cell survival.
Medical research May 17, 2013 | 5 / 5 (1) | 0
New findings by researchers carrying out experiments at the U.S. Department of Energy Office of Science's Advanced Photon Source (APS) help explain why some drugs that interact with two kinds of human serotonin ...
Medical research May 17, 2013 | 4 / 5 (1) | 0 |
Researchers at the University of Wisconsin have identified a potential new risk factor for obstructive sleep apnea: asthma. Using data from the National Institutes of Health (Heart, Lung, and Blood Institute)-funded Wisconsin ...
41 minutes ago | not rated yet | 0 |
A new study looking at sleep-disordered breathing (SDB) and markers for Alzheimer's disease (AD) risk in cerebrospinal fluid (CSF) and neuroimaging adds to the growing body of research linking the two.
51 minutes ago | not rated yet | 0 |
Gourmands and foodies everywhere have long recognized ginger as a great way to add a little peppery zing to both sweet and savory dishes; now, a study from researchers at Columbia University shows purified components of the ...
41 minutes ago | not rated yet | 0
Scientists at Johns Hopkins have turned their view of osteoarthritis (OA) inside out. Literally. Instead of seeing the painful degenerative disease as a problem primarily of the cartilage that cushions joints, ...
1 hour ago | 5 / 5 (1) | 0 |
The hunt for an HIV vaccine has gobbled up $8 billion in the past decade, and the failure of the most recent efficacy trial has delivered yet another setback to 26 years of efforts.
5 hours ago | not rated yet | 0
The devastating effect of Alzheimer's disease on bilingual people has been thrown into focus in Canada, where the sudden loss of a second language can leave sufferers feeling like strangers in their own country.
3 hours ago | not rated yet | 0