Featured Research

from universities, journals, and other organizations

Breakthrough in malaria treatment in the run up to World Malaria Day

Date:
April 20, 2011
Source:
European Commission, Research & Innovation DG
Summary:
Ahead of World Malaria Day (25 April), researchers have discovered that drugs originally designed to inhibit the growth of cancer cells can also kill the parasite that causes malaria. They believe this discovery could open up a new strategy for combating this deadly disease, which infected around 225 million and killed nearly 800,000 people worldwide in 2009.

Ahead of World Malaria Day (25 April), EU-funded researchers have discovered that drugs originally designed to inhibit the growth of cancer cells can also kill the parasite that causes malaria. They believe this discovery could open up a new strategy for combating this deadly disease, which, according to World Health Organisation statistics, infected around 225 million and killed nearly 800,000 people worldwide in 2009.

Related Articles


Efforts to find a treatment have so far been hampered by the parasite's ability to quickly develop drug resistance. The research involved four projects funded by the EU (ANTIMAL, BIOMALPAR, MALSIG and EVIMALAR) and was led by laboratories in the UK, France and Switzerland with partners from Belgium, Germany, Denmark, Greece, Spain, Italy, Netherlands, Portugal, and Sweden, along with many developing nations severely affected by malaria.

Research, Innovation and Science Commissioner Mαire Geoghegan-Quinn said: "This discovery could lead to an effective anti-malaria treatment that would save millions of lives and transform countless others. This demonstrates yet again the added value both of EU-funded research and innovation in general and of collaboration with researchers in developing countries in particular. The ultimate goal is the complete eradication of the global scourge of malaria and collaborative work across many borders is the only way of confronting such global challenges effectively."

Cancer drugs to kill malaria parasite

Malaria is caused by a parasite called Plasmodium, which is transmitted via the bites of infected mosquitoes. In the human body, the parasites reproduce in the liver, and then infect and multiply in red blood cells. Joint research led by EU-funded laboratories at the Inserm-EPFL Joint Laboratory, Lausanne, (Switzerland/France), Wellcome Trust Centre for Molecular parasitology, University of Glasgow (Scotland), and Bern University (Switzerland) showed that, in order to proliferate, the malaria parasite depends upon a signalling pathway present in the host's liver cells and in red blood cells. They demonstrated that the parasite hijacks the kinases (enzymes) that are active in human cells, to serve its own purposes. When the research team used cancer chemotherapy drugs called kinase inhibitors to treat red blood cells infected with malaria , the parasite was stopped in its tracks.

A new strategy opens up

Until now the malaria parasite has managed to avoid control by rapidly developing drug resistance through mutations and hiding from the immune system inside liver and red blood cells in the body of the host, where it proliferates. The discovery that the parasite needs to hijack some enzymes from the cell it lives in opens up a whole new strategy for fighting the disease. Instead of targeting the parasite itself, the idea is to make the host cell environment useless to it, by blocking the kinases in the cell. This strategy deprives the parasite of a major modus operandi for development of drug resistance.

Several kinase-inhibiting chemotherapy drugs are already used clinically in cancer therapy, and many more have already passed phase-I and phase II clinical trials. Even though these drugs have toxic side-effects, they are still being used over extended periods for cancer treatment. In the case of malaria, which would require a shorter treatment period, the problem of toxicity would be less acute. Researchers are proposing therefore that these drugs should be evaluated immediately for anti-malarial properties, drastically reducing the time and cost required to put this new malaria-fighting strategy into practice.

The next steps will include mobilising public and industrial partners to verify the efficacy of kinase inhibitors in malaria patients and to adjust the dose through clinical trials, before the new treatments can be authorised and made available to malaria patients worldwide.


Story Source:

The above story is based on materials provided by European Commission, Research & Innovation DG. Note: Materials may be edited for content and length.


Journal Reference:

  1. Audrey Sicard, Jean-Philippe Semblat, Caroline Doerig, Romain Hamelin, Marc Moniatte, Dominique Dorin-Semblat, Julie A. Spicer, Anubhav Srivastava, Silke Retzlaff, Volker Heussler, Andrew P. Waters, Christian Doerig. Activation of a PAK-MEK signalling pathway in malaria parasite-infected erythrocytes. Cellular Microbiology, 2011; DOI: 10.1111/j.1462-5822.2011.01582.x

Cite This Page:

European Commission, Research & Innovation DG. "Breakthrough in malaria treatment in the run up to World Malaria Day." ScienceDaily. ScienceDaily, 20 April 2011. <www.sciencedaily.com/releases/2011/04/110420111346.htm>.
European Commission, Research & Innovation DG. (2011, April 20). Breakthrough in malaria treatment in the run up to World Malaria Day. ScienceDaily. Retrieved October 24, 2014 from www.sciencedaily.com/releases/2011/04/110420111346.htm
European Commission, Research & Innovation DG. "Breakthrough in malaria treatment in the run up to World Malaria Day." ScienceDaily. www.sciencedaily.com/releases/2011/04/110420111346.htm (accessed October 24, 2014).

Share This



More Health & Medicine News

Friday, October 24, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Breakfast Debate: To Eat Or Not To Eat?

Breakfast Debate: To Eat Or Not To Eat?

Newsy (Oct. 23, 2014) — Conflicting studies published in the same week re-ignited the debate over whether we should be eating breakfast. Video provided by Newsy
Powered by NewsLook.com
Ebola Fears Keep Guinea Hospitals Empty

Ebola Fears Keep Guinea Hospitals Empty

AP (Oct. 23, 2014) — Fears of Ebola are keeping doctors and patients alike away from hospitals in the West African nation of Guinea. (Oct. 23) Video provided by AP
Powered by NewsLook.com
Despite Rising Death Toll, Many Survive Ebola

Despite Rising Death Toll, Many Survive Ebola

AP (Oct. 23, 2014) — The family of a Dallas nurse infected with Ebola in the US says doctors can no longer detect the virus in her. Despite the mounting death toll in West Africa, there are survivors there too. (Oct. 23) Video provided by AP
Powered by NewsLook.com
Orthodontist Mom Jennifer Salzer on the Best Time for Braces

Orthodontist Mom Jennifer Salzer on the Best Time for Braces

Working Mother (Oct. 22, 2014) — Is your child ready? Video provided by Working Mother
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins