Navigation Links
Manipulating the immune system like a parasite
Date:4/9/2008

One day it may be possible to mimic the tactics used by parasites to trick the body into accepting transplanted tissues or organs.

That is the hope of Dr Shane Grey from the Garvan Institute for Medical Research and Professor John Dalton from the Institute for the Biotechnology of Infectious Diseases at the University of Technology (UTS). The pair has been awarded a $400,000 grant through the Australian Islet Transplantation Program, administered jointly by the Juvenile Diabetes Research Foundation (JDRF) and the Commonwealth Department of Health and Ageing.

The grant will be divided equally between Garvan and UTS over a period of two years, and will combine Professor Daltons expertise in parasitology and biochemistry with Dr Greys expertise as a transplant immunologist.

When parasites invade humans, they secrete compounds that appear to change the way the immune system sees them. In other words, they alter the immune response.

Over time our immune system has evolved different ways to deal with different organisms and challenges, explained Dr Grey. What the parasite does is deviate the immune system from an effective response to one thats more suited to attacking other organisms or pathogens. Its quite cunning.

By effectively disarming its host, the parasite is doing the equivalent of replacing the weaponry of a modern army with bows and arrows.

The Australian Islet Transplantation Program funds much innovative transplant therapy work in the hope of one day finding a way for recipients to tolerate islet (insulin producing cells in the pancreas) transplants without having to take highly toxic immunosuppressive drugs for the rest of their lives. Many people believe that effective islet transplantation offers the greatest hope for curing Type 1 diabetes, or insulin dependent diabetes.

Before applying for the grant, the Garvan and UTS teams undertook a short pilot study to test their approach. The initial test results left Dr Grey feeling very optimistic about the proposed collaboration.

The UTS team sent us some biochemically pure compounds which we delivered over three weeks to mice that had received an islet transplant. Stacey Walters, a member of my research team, found that the optimal combination of compounds gave permanent graft survival. In that type of model, the outcome we achieved was extraordinary.

Our first step now that we have received funding will be to repeat our initial result on a larger cohort of animals. Then our challenge will be to work out exactly what the compounds do to a recipients immune system. Obviously wed like to tease out the good bioactive components and remove any that could be harmful.

Ideally, wed like to bring about an alteration of the immune system to allow the retention of a graft yet perform other functions as normal. If we achieve that, we will be very happy.


'/>"/>

Contact: Alison Heather
a.heather@garvan.org.au
61-292-958-128
Research Australia
Source:Eurekalert

Related medicine news :

1. Penn study finds pro-death proteins required to regulate healthy immune function
2. Immune deficiency linked to a type of eye cancer
3. Tumors use enzyme to recruit regulatory T-cells and suppress immune response
4. Melanoma drug revs immune cells but cancer cells ignore it
5. Study identifies key player in the bodys immune response to chronic stress
6. MedImmune Resolves FDA Observations Regarding Manufacturing Process for FluMist(R)
7. UVA researchers find important clue to immune infertility
8. M.D. Anderson-led team reports possible key to autoimmune disease
9. Their immune cells, fighting your cancer
10. MedImmune Licenses Reverse Genetics Technology to GlaxoSmithKline for Use in Influenza Vaccine Development and Production
11. Occupational exposures may be linked to death from autoimmune disease
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/27/2016)... ... June 27, 2016 , ... ... the only authorized OSHA Training Institute Education Center headquartered in Northern California, has ... workers from extreme heat at their worksites. Employers with workers exposed to ...
(Date:6/27/2016)... Aliso Viejo, California (PRWEB) , ... June 27, 2016 , ... ... that are fully customizable inside of Final Cut Pro X," said Christina Austin - ... with another unique style. Final Cut Pro X users can now reveal ...
(Date:6/27/2016)... (PRWEB) , ... June 27, 2016 , ... ... for mental health professionals, announced today its affiliation with Tennessee Counseling Association. ... solutions to the network of the Tennessee Counseling Association, adding exclusive benefits and ...
(Date:6/27/2016)... ... June 27, 2016 , ... ... its strategic partnership with Connance, a healthcare industry leader providing predictive analytics ... proprietary technology combine to provide health systems, hospitals and ambulatory surgical centers ...
(Date:6/27/2016)... ... June 27, 2016 , ... A revolution is underway. ... ambulance transport experience for the millions of people who require these medical transport ... taxi industry through the use of technology. Now, SmartEMS has put forth an ...
Breaking Medicine News(10 mins):
(Date:6/26/2016)... One of Australia,s successful biotechnology scientists, Dr ... biotechnology company, Noxopharm Limited [ABN 50 608 966 123] ("Noxopharm"). Noxopharm ... on the ASX. Noxopharm is a clinic-ready company with ... 1 clinical study later this year. ... problems facing cancer patients - the ability of cancers to become ...
(Date:6/26/2016)... 27, 2016 Jazz Pharmaceuticals plc (Nasdaq: ... the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended ... Pharmaceuticals, Inc. ("Celator"; Nasdaq: CPXX ) expired ... Time). As previously announced on May 31, ... merger agreement under which Jazz Pharmaceuticals has commenced a ...
(Date:6/26/2016)... -- VMS Rehab Systems, Inc. ( www.vmsrehabsystemsinc.com ) reported today ... to build a strong and stable market for trading ... the OTC Markets-pink current trading platform. Explains ... seeing an anomaly in market trading activities that may ... Company, but shareholders and market players as well. I ...
Breaking Medicine Technology: