Navigation Links
Progress toward an alternative for EPO: Gas6 offers remedy where EPO fails today
Date:1/31/2008

Leuven, Belgium − Many patients with a chronic disease or cancer have to contend with anemia − and the severe fatigue that accompanies anemia impedes the patient considerably in his or her daily activities. At present, the hormone EPO is administered to a large number of these patients to alleviate the anemia. But unfortunately, treatment with EPO is not always effective, and not all patients respond to this therapy. VIB scientists connected to the Katholieke Universiteit Leuven have been researching the role of the Gas6 protein. This substance has proven successful in the treatment of mice with anemia, without causing the side effects that the use of EPO entails. In addition, Gas6 contributes to a reinforcement of EPOs effect. Gas6 might possibly form the basis for a new treatment for anemia and offer a remedy for patients where EPO is ineffective.

What is anemia?

When the blood contains too few red blood cells, or when the red blood cells contain too little hemoglobin, the condition is called anemia. Hemoglobin binds to oxygen from the lungs and conveys it throughout our bodies, where it plays an essential role in the bodys production of energy. If there are not enough red blood cells in our body, or if the red blood cells do not contain enough hemoglobin, then insufficient oxygen is transported. A shortage of oxygen in our tissues can cause people to feel tired and weak, and serious cardiovascular, neurological and musculoskeletal abnormalities develop.

EPO as the remedy

EPO (or Erythropoietin) is a hormone that is produced predominantly in the kidneys and that stimulates the formation of red blood cells. However, sometimes the kidneys do not produce enough EPO and anemia results. Such a shortage of EPO often occurs in patients with a chronic disorder (like kidney failure or rheumatoid arthritis) and in cancer patients. In the case of cancer, anemia can be caused by the disease itself as well as by chemotherapy.

When patients with chronic kidney ailments or cancer develop anemia, the human EPO protein is produced in mammalian cells and administered as a drug. The EPO then stimulates the formation of red blood cells, thus alleviating the anemia. But, in a large number of patients, the use of EPO as a remedy fails; in some patients, even high dosages of EPO are not effective.

Gas6 as alternative − and safer − remedy?

VIB researcher Diether Lambrechts and his colleagues have been studying − under the direction of Ed Conway and Peter Carmeliet, and in collaboration with foreign experts − the role of the Gas6 protein in mice. While EPO plays a prominent role in the production of red blood cells throughout our life, Gas6 is only involved in the production of red blood cells in adulthood.

When mice with anemia are treated with Gas6, the red blood cells once again rise to their normal levels in the blood. In contrast to EPO, the use of Gas6 does not result in an excessive production of red blood cells, which increases the risk of thrombosis. Furthermore, Gas6 reinforces the effect of EPO: indeed, when Gas6 is administered to mice that have not produced enough EPO, it works just as well as EPO, and a combined treatment of Gas6 and EPO produces an even greater therapeutic effect.

So, the positive evaluation of Gas6 in anemic mice raises hopes for a more effective and safer remedy for chronic disease patients who have to contend with anemia as a consequence of their disease or therapy.


'/>"/>

Contact: Ann Van Gysel
info@vib.be
329-244-6611
VIB (the Flanders Institute for Biotechnology)
Source:Eurekalert

Related medicine news :

1. New MRI finding sheds light on multiple sclerosis disease progressio
2. Brain Lesions Predict MS Progression
3. Pregnancy may slow -- not accelerate -- progression to AIDS
4. STAAR Surgical Reports Operational Progress
5. Progression of SIV infection in monkeys raises
6. Study makes progress in zoning in on biomarkers for better colon cancer treatment
7. Chemotherapy with gemcitabine delays progression of operable pancreatic cancer
8. Limiting refined carbohydrates may stall AMD progression
9. World Bank Group Report on Malaria in Africa Highlights Progress Towards Goal of Significantly Reducing Malaria Deaths
10. New Data Suggests Progression of Disability at Two Years Predicts Multiple Sclerosis (MS) Disability Progression at Eight Years
11. Study finds genetic influence on pace of HIV/AIDS progression
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/22/2017)... ... September 22, 2017 , ... Silicon Valley ... even on the go. Their electric toothbrushes aggressively attack oral bacteria by reducing ... sanitizing technology. Combining leading edge Enke technology with a premium timeless design, they ...
(Date:9/22/2017)... ... September 22, 2017 , ... “Letters From Home”: a moving ... lost, have value to God. “Letters From Home” is the creation of published author, ... the President’s Cabinet of Jerry Savelle Ministries International, who has traveled and ministered on ...
(Date:9/22/2017)... ... September 22, 2017 , ... ... and create life. Although frozen embryos have a slight statistical advantage for live ... freezing is a wonderful opportunity for women undergoing medical treatment or who are ...
(Date:9/21/2017)... ... 21, 2017 , ... With ProSlideshow Portrait from Pixel Film Studios creating a ... select from up to two layers of subject matter along with fully customizable backdrop ... Final Cut Pro X. , With ProSlideshow Portrait each user are given ...
(Date:9/21/2017)... ... 21, 2017 , ... Process Capability Indices for Medical Device ... ET, http://www.fdanews.com/processcapabilityindices      , Quality in device manufacturing is ... Quality System Regulation (§820.250), and Devicemakers find themselves staring at a warning letter. ...
Breaking Medicine News(10 mins):
(Date:9/9/2017)... ... ... – Monday, September 18 th .The Brain Tumor Foundation (BTF) begins ... the public.Where:  BTF,s Mobile MRI Unit – a ... Washington, D.C.What:BTF brings its nationwide initiative, the Road to Early Detection Sponsor-A-City ...
(Date:9/9/2017)... Lilly and Company (NYSE: LLY ) will ... an investigational, oral, first-in-class molecule for the acute treatment ... placebo in the Phase 3 SPARTAN study. Detailed results ... the International Headache Society (IHC) in Vancouver ... lasmiditan,s potential to reduce pain and provide freedom from ...
(Date:9/7/2017)... MIRAGE, Calif. , Sept. 7, 2017  For nearly two decades, ... service in the Assisted Reproduction Insurance industry. Today, New Life Agency announces ... fertility medications. ... http://pharmacarecard.com/ (PRNewsfoto/PharmaCareCard) ... ...
Breaking Medicine Technology: