HOME >> BIOLOGY >> NEWS
Gene Therapy Enables Transplantation Without Immunosuppressive Drugs

Researchers at the University of Pennsylvania Medical Center, working in a rodent model, have succeeded in transplanting livers without the need for immunosuppressive drugs. In a scientific first, a gene therapy strategy was used to alter the donor liver prior to surgery so that the immune system of the recipient became permanently tolerant of the new organ. The new findings are reported in the February issue of Nature Medicine.

Although additional animal studies will be required before human clinical trials of the approach can be considered, the advantages of such a localized system for countering the immune-system rejection of newly engrafted organs are potentially significant. The powerful immunosuppressive drugs now required to allow a life-saving transplanted organ to survive in a recipient's body without rejection do their work only at a substantial cost to the overall well-being of the recipient.

"Currently, all immunosuppression is systemic and lifelong," says Kim M. Olthoff, MD, an assistant professor of surgery and lead author on the study. "So, to protect the new organ from rejection, long-term drugs that suppress the entire immune system must be given, making the person susceptible to infections, cancers, and a number of other complications, including nerve and kidney damage. In our study, a one-time gene therapy treatment of only the donor liver made the recipient's immune system tolerant of the new organ without the need for any further immunosuppression."

The technique developed by the Penn team makes use of an adenovirus -- a virus usually associated with the common cold -- that has been engineered to incorporate the gene that encodes for a protein called CTLA4Ig. The gene-bearing virus, referred to as a vector, is then introduced into an organ preservation solution used to maintain the liver after harvesting and prior to engraftment, resulting in uptake by the organ
'"/>

Contact: Franklin Hoke
hokef@mail.med.upenn.edu
215-349-5659
University of Pennsylvania School of Medicine
29-Jan-1998


Page: 1 2 3

Related biology news :

1. 1st International Conference on Cell Therapy for Cardiovascular Disease
2. National Cancer Gene Therapy Foundation gives $4.0 million in research grants
3. Braunschweig Prize 2003 for Molecular Cancer Therapy
4. Alliance for Cancer Gene Therapy announces $1.5 million in national grants to young investigators
5. New research on safety of intracoronary delivery of adenovector reported in cover story of Molecular Therapy
6. Therapy hinders AIDS virus from evolving drug resistance, Hopkins researchers find
7. Invitation To Cover: American Society Of Gene Therapy Meeting
8. Gene Therapy For Pain
9. Role Of Protein Linked To Colon Cancer Identified, Offering Potential Target For Therapy
10. Shock Therapy Exceeds Expectations In Cleaning Up Contaminated Soils
11. Penn Researchers Develop Gene Therapy Technique That Reverses Muscle Membrane Weakness In Muscular Dystrophy Variant

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:6/2/2016)... , June 2, 2016 The Department ... has awarded the 44 million US Dollar project, for the ... Vehicle Plates including Personalization, Enrolment, and IT Infrastructure , ... in the production and implementation of Identity Management Solutions. Numerous ... however Decatur was selected for the ...
(Date:6/1/2016)... -- Favorable Government Initiatives Coupled With Implementation ... to Boost Global Biometrics System Market Through 2021  ... " Global Biometrics Market By Type, By End ... - 2021", the global biometrics market is projected to ... growing security concerns across various end use sectors such ...
(Date:5/16/2016)... --  EyeLock LLC , a market leader of iris-based ... IoT Center of Excellence in Austin, Texas ... embedded iris biometric applications. EyeLock,s iris authentication ... with unmatched biometric accuracy, making it the most proven ... platform uses video technology to deliver a fast and ...
Breaking Biology News(10 mins):
(Date:6/24/2016)... ... June 24, 2016 , ... While the majority of commercial spectrophotometers ... 5000 and the 6000i models are higher end machines that use the more unconventional ... spectrophotometer’s light beam from the bottom of the cuvette holder. , FireflySci has ...
(Date:6/23/2016)... , June 23, 2016 /PRNewswire/ - FACIT has ... Ontario biotechnology company, Propellon Therapeutics Inc. ... and commercialization of a portfolio of first-in-class WDR5 ... targets such as WDR5 represent an exciting class ... in precision medicine for cancer patients. Substantial advances ...
(Date:6/23/2016)...  The Biodesign Challenge (BDC), a university competition that ... living systems and biotechnology, announced its winning teams at ... New York City . The teams, ... at MoMA,s Celeste Bartos Theater during the daylong summit. ... curator of architecture and design, and Suzanne Lee ...
(Date:6/23/2016)... 2016 Apellis Pharmaceuticals, Inc. today announced ... of its complement C3 inhibitor, APL-2. The trials ... dose studies designed to assess the safety, tolerability, ... in healthy adult volunteers. Forty subjects ... single dose (ranging from 45 to 1,440mg) or ...
Breaking Biology Technology:
Cached News: