Navigation Links
Pluripotent stem cell-derived neurons may be a viable Parkinson's disease treatment
Date:6/28/2013

Putnam Valley, NY. (Jun. 28 2013) A team of researchers from Rush University, Yale University, the University of Colorado and the St. Kitts Biomedical Research Foundation transplanted human embryonic stem cells into primate laboratory animals modeled with Parkinson's disease and found "robust survival" of the cells after six weeks and indications that the cells were "well integrated" into the host animals. The study appears as an early e-publication for the journal Cell Transplantation, and is now freely available on-line at http://www.ingentaconnect.com/content/cog/ct/pre-prints/ct1000wakeman.

"Parkinson's disease was one of the first neurological disorders to be studied for potential replacement of lost neurons," said Dr. D. Eugene Redmond of Yale University School of Medicine. "Since the 1970s there has been significant progress with learning the required gene expression, growth factors and culture conditions for differentiating cells into apparent dopamine neurons."

However, the researchers noted that transplanted dopamine neurons have not produced "long-lasting midbrain specific neurons when transplanted into rodents or monkeys" and there have only been pilot reports of functional improvement.

According to the study authors, their study tested the long-term survival and functional benefit of apparent dopamine neurons in monkeys modeled with Parkinson's disease. As with other studies, their results found that the gene expression of the rate limiting synthetic enzyme for dopamine production, tyrosine hydroxylase (TH), was "transient" after transplantation, raising questions about the optimal cell stage and culture environment that favor graft survival and the factors that could impact cell transplantation. Once more, a more robust immunosuppression regimen than employed in other primate studies resulted in better cell survival.

"Our results demonstrate that pluripotent stem cell line-derived neurons retain the capacity to robustly survive and respond to cues in the primate brain," they wrote. "The absence of TH expression indicates that other methods may be necessary to produce and maintain the proper midbrain dopaminergic form of the cells in vivo."

While their study demonstrated robust survival of the cells, the researchers said that longer term studies are required to better understand what factors may impact long-term function replacement and whether they demonstrate significant reversal of parkinsonism, tumor formation or dyskinesias, the latter being a side effect of current treatments for Parkinson's Disease.


'/>"/>

Contact: Robert Miranda
cogcomm@aol.com
Cell Transplantation Center of Excellence for Aging and Brain Repair
Source:Eurekalert

Related medicine news :

1. Induced Pluripotent Stem Cell Industry (iPSC Market) Report Updated for 2013 Now Available at ReportsnReports.com
2. Scientists at UMass Medical School identify neurons that control feeding behavior in Drosophila
3. Researchers identify networks of neurons in the brain that are disrupted in psychiatric disease
4. Tiny worm sheds light on giant mystery about neurons
5. Stanford researchers turn skin cells directly into the cells that insulate neurons
6. Fatheads: How neurons protect themselves against excess fat
7. Difficulty in recognizing faces in autism linked to performance in a group of neurons
8. Improper protein digestion in neurons identified as a cause of familial Parkinsons
9. Protein build-up leads to neurons misfiring
10. Neurons derived from cord blood cells may represent new therapeutic option
11. Neurons that control overeating also drive appetite for cocaine
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/27/2016)... ... June 27, 2016 , ... ... to revolutionize the emergency ambulance transport experience for the millions of people who ... Uber has disrupted the taxi industry through the use of technology. Now, SmartEMS ...
(Date:6/26/2016)... ... 2016 , ... PawPaws brand pet supplements owned by Whole Health ... the health of felines. The formula is all-natural and is made from Chinese herbs ... Cat Kidney Support Supplement Soft Chews are Astragalus Root Extract and Rehmannia ...
(Date:6/25/2016)... , ... June 25, 2016 , ... The temporary closing of Bruton Memorial Library on ... Observer , brings up a new, often overlooked aspect of head lice: the parasite’s ability ... fumigation is not a common occurrence, but a necessary one in the event that lice ...
(Date:6/25/2016)... ... ... On Friday, June 10, Van Mitchell, Secretary of the Maryland Department of Health ... of their exemplary accomplishments in worksite health promotion. , The Wellness at Work Awards ... at the BWI Marriott in Linthicum Heights. iHire was one of 42 businesses to ...
(Date:6/24/2016)... ... ... Marcy was in a crisis. Her son James, eight, was out of control. Prone to ... , “When something upset him, he couldn’t control his emotions,” remembers Marcy. “If there ... my other children and say he was going to kill them. If we were ...
Breaking Medicine News(10 mins):
(Date:6/23/2016)... 23, 2016 Roche (SIX: RO, ROG; OTCQX: ... its Elecsys BRAHMS PCT (procalcitonin) assay as a dedicated ... shock. With this clearance, Roche is the first IVD ... solution for sepsis risk assessment and management. ... and PCT levels in blood can aid clinicians in ...
(Date:6/23/2016)... June 23, 2016 Capricor ... ), a biotechnology company focused on the discovery, ... that patient enrollment in its ongoing randomized HOPE-Duchenne ... exceeded 50% of its 24-patient target. Capricor expects ... third quarter of 2016, and to report top ...
(Date:6/23/2016)... -- Bracket , a leading clinical trial technology and ... platform, Bracket eCOA (SM) 6.0, at the 52 nd ... 2016 in Philadelphia , Pennsylvania.  A demonstration ... of its kind to fully integrate with RTSM, will be ... is a flexible platform for electronic clinical outcomes assessments that ...
Breaking Medicine Technology: