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Home / Health News / New finding may help scientists develop an effective malaria vaccine

New finding may help scientists develop an effective malaria vaccine

A more effective vaccine is a major step nearer after a team of scientists found how malaria evades the immune system.

By: Agencies   | | Published: May 26, 2016 7:10 pm
Tags: Malaria treatment  Malaria vaccine  
malaria-mosquitoes-diseases-THS

A more effective vaccine is a major step nearer after a team of scientists found how malaria evades the immune system. The Penn State College of Medicine study showed that the malaria parasite Plasmodium falciparum hijacks an immune system process to invade red blood cells. Understanding how malaria invades the cells could lead to a more effective vaccine. Malaria kills about 1 million people every year, mostly children under 5 in Sub-Saharan Africa. Only one vaccine has been licensed, and neither it nor any others in development today will be 100 percent effective against malaria infection, said lead researcher Jose A. Stoute. (Read: Neem a natural mosquito repellent you must try!) Also Read - New mutation in malaria parasite may resist drug used to prevent the disease: Study

Also Read - NIH researchers find new target for malaria treatment: Know the best way to prevent the disease



Immunologists have suspected that P. falciparum, the most deadly malaria parasite, uses several mechanisms to evade the human immune response and invade red blood cells. The team showed that the parasite uses an arm of the human immune response called the complement system to do so. The complement system is made up of proteins that aid or complement antibodies that fight infections. In a successful immune response, the production of antibodies against a pathogen triggers complement proteins to coat and kill the invader before it can cause harm. But in the case of malaria infection, the researchers learned, the parasite turns this process on its head. (Read: 5 non-toxic ways to keep your home mosquito free (These really work!)) Also Read - Antarctic sea sponge may yield treatment for malaria

Our results contradict the dogma of what the complement system does, and will likely be subject to a lot of scrutiny, Stoute said. Our findings suggest that development of an effective malaria vaccine that blocks red blood cell invasion is a more difficult task than initially thought. At the same time, we are now in a better position. By learning the malaria parasite’s tricks, we may be able to bypass them. One strategy might introduce antibodies that are less likely to activate complement, Stoute said. Better treatments could also be developed, such as complement inhibitors for use in people with severe malaria. We need to continue to explore ways in which we can develop, ultimately, a nearly 100 percent effective malaria vaccine, he said. The study appears online in the journal EBioMedicine. (Read: 10 natural ways to keep your home mosquito-free)

Source: ANI

Photo source: Getty images (Image for representational purpose only)

Published : May 26, 2016 7:10 pm
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