Navigation Links
Cellular Defects in Premature Aging Disease are Reversible

anent or reversible," said Scaffidi. First, the investigators added DNA encoding normal lamin A into cells taken from patients affected with progeria, but observed that increased synthesis of normal lamin A did not correct any of the progeria-associated defects. In addition, they found that introduction of the mutant protein into healthy human cells was sufficient to produce the disease characteristics. "These results made it clear that in order to achieve a potential therapeutic effect, we needed to completely eliminate the mutant protein," said Scaffidi.

The NCI researchers designed a chemically stable DNA oligonucleotide ?a short DNA sequence that the cell wouldn't be able to degrade ?that would bind to the mutant splice site and prevent the splicing machinery from cutting in the wrong place. "You can think of it as a molecular Band-Aid®," said Misteli. The researchers inserted their oligonucleotides into the progeria cells and observed that after four days almost all the mutant lamin A transcripts had been eliminated and replaced with the properly spliced counterpart. The oligonucleotide was highly specific to the mutated region and did not cover-up other splicing locations. One week after correcting the splicing defect, the mutant lamin A protein had been eliminated and more than 90 percent of progeria cells were restored to normal; visually, the nuclei lost their wrinkles and lobes and returned to a natural ellipsoid shape, and the expression of other nuclear proteins was also restored to normal levels.

"It's amazing that we could take a cell that looked about ready to die, and a few days later it was healthy and ready to divide again," said Misteli.

Misteli noted that these results demonstrate a proof-of-principle that the cellular effects of progeria can be reversed, meaning his laboratory's method could be used some day in the future as a therapeutic strategy. The fact that a progeria reversal can be achieved in multiple cell types,
'"/>

Source:NIH


Page: 1 2 3

Related biology news :

1. Molecular Motors Cooperate In Moving Cellular Cargo, Study Shows
2. Cellular scale drug delivery from the inside out
3. Cellular antennae on algae give clues to how human cells receive signals
4. Cellular traffic backups implicated in skeletal malformations
5. Number Of Babies Born Prematurely Nears Historic Half Million Mark In U.S.
6. Premature births may be linked to seasonal levels of pesticides and nitrates in surface water
7. Research on Worms Yields Clues on Aging
8. Young Blood Revives Aging Muscles, Stanford Researchers Find
9. Gene Expression in the Aging Brain
10. Aging cells, aging body: Fresh evidence for a connection
11. Tramiprosate (Alzhemed? preclinical results published in Neurobiology of Aging
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Cellular Defects Premature Aging Disease are Reversible

(Date:11/6/2014)... 2014 - Insilico Medicine, Inc, a Baltimore-based bioinformatics ... related diseases announced a research collaboration with the ... Oncology, Inc (OTC: CSBR). , "There are many ... but Champions Oncology,s TumorGraft technology is unique in ... regimen experimentally generating vast amounts of valuable data. ...
(Date:11/5/2014)... de Janeiro, Brazil -Individuals show great diversity in their ... males and females greatly differ in their perceptual evaluation ... of smell tests. , Sex differences in ... behaviors and may be connected to one,s perception of ... emotions. Thus, women,s olfactory superiority has been suggested to ...
(Date:11/4/2014)... Medicine announced today that it is a Grand ... Bill & Melinda Gates Foundation. Laura Goetzl, ... Sciences; and Vice Chair of Research and Academic ... pursue an innovative global health and development research ... Neurodevelopment.", Grand Challenges Explorations (GCE) funds individuals worldwide ...
Breaking Biology News(10 mins):Insilico Medicine, Inc announces research collaboration with Champions Oncology, Inc 2The female nose always knows: Do women have more olfactory neurons? 2Temple University School of Medicine receives Grand Challenges Explorations grant 2
... that can break down plant biomass into the precursors of ... to produce alternatives to petroleum. But the potential of this ... cannot break down lignin, a highly stable polymer that makes ... Streptomyces bacteria are among few microorganisms known to ...
... 14, 2013As scientists continue to unravel the complexity of the ... role in both normal physiology and disease, one particular class ... attention. Guest Editor Tom Cech, PhD and Executive Editor Fintan ... advancing research area in their Editorial " The (Noncoding) ...
... Studies at Le Bonheur Children,s Hospital in Memphis, ... RSV, replicate in humans, mutate to avoid the immune ... DeVincenzo, MD, medical director of Molecular Diagnostics and Virology ... Microbiology, Immunology, and Molecular Biology at The University of ...
Cached Biology News:A microbial biorefinery provides new insight into how bacteria regulate genes 2A microbial biorefinery provides new insight into how bacteria regulate genes 3Noncoding RNAs offer huge therapeutic and diagnostic potential 2Leading RSV researcher publishes work at Le Bonheur Children's 2Leading RSV researcher publishes work at Le Bonheur Children's 3
(Date:11/22/2014)...   , ... zu KLOX    Mariano ... Officer bestellt    KLOX ist bestens ... zugelassenen Behandlungssystems zur Wundheilung zu beginnen    , ... sehr erfreut, die folgenden personellen Veränderungen anzukündigen: ...
(Date:11/21/2014)... , Nov. 21, 2014   TRU-D SmartUVC LLC ... their superbug-killing UVC automated disinfection robot, TRU-D SmartUVC, at FIS ... from Nov. 23 to 26 at Stand 23. ... United Kingdom,s largest infection-related event of ... societies to one of the leading events of its type ...
(Date:11/21/2014)... Offering a complete line of laboratory ... promotion . The Sartorius Entris Balance is the perfect ... and easy-to-maintain balance entry level balance. , The Entris ... to help customer’s bridge the gap between a basic ... very durable. Sartorius is the second biggest balance manufacturer ...
(Date:11/21/2014)... Palo Alto, Calif. (PRWEB) November 20, 2014 ... (CHI), a nonprofit, public policy research organization representing ... and pharmaceutical firms, and PwC US ... other states in life sciences industry growth. The ... and 2013. The 2015 California Biomedical Industry ...
Breaking Biology Technology:KLOX Technologies meldet Neubesetzung von Führungspositionen 2KLOX Technologies meldet Neubesetzung von Führungspositionen 3KLOX Technologies meldet Neubesetzung von Führungspositionen 4KLOX Technologies meldet Neubesetzung von Führungspositionen 5TRU-D SmartUVC to Showcase Superbug-Killing Robot at FIS 2014 2TRU-D SmartUVC to Showcase Superbug-Killing Robot at FIS 2014 3Pipette.com Announces an Extension on the Sartorius Entris Balance Promotion to the End of 2014 2California Healthcare Institute and PwC Report Boom in California’s Biomedical Industry 2California Healthcare Institute and PwC Report Boom in California’s Biomedical Industry 3California Healthcare Institute and PwC Report Boom in California’s Biomedical Industry 4
... 220 V, is used for agitation and mixing ... staining and destaining of gels and blots, and ... (8-40 rpm) and can handle a maximum load ... two 29 x 21 cm platforms covered with ...
...
...
... Wyatt Technology's family of light scattering instruments. ... temperature chromatograph and enables you to get ... The HTmD is easily installed in the ... Alliance 2000 device and enables you to ...
Biology Products: