Navigation Links
UIC researcher unveils new approach to blocking malaria transmission

University of Illinois at Chicago researcher Dr. John Quigley will describe a promising new approach to blocking malaria transmission during the American Society of Hematology's annual meeting in Orlando, Fla.

Quigley will speak at a press briefing Saturday, Dec. 4, at 8 a.m. at the Orange County Convention Center, 9800 International Drive, Room 208C (West Building). His abstract, "Anopheline Orthologs of the Human Erythroid Heme Exporter, FLVCR, Export Heme: Potential Targets to Inhibit Plasmodium Transmission," will be presented at the plenary session Sunday.

The research focuses on potential targets to inhibit transmission of the parasite Plasmodium that causes malaria.

Female mosquitoes ingest large amounts of hemoglobin that serves as a food source required for mosquito egg development. When a mosquito ingests infected blood, Plasmodium reproduces in the mosquito gut. Plasmodium fertilized egg cells cross the lining of the mosquito gut and develop into oocysts. After maturing, the oocysts rupture and release thousands of parasites that allow the mosquito to transmit malaria when it bites another human.

Previous studies have shown that mosquitoes with increased oxidative stress in their midgut are resistant to Plasmodium transmission. Quigley and his colleagues hypothesize that if they can disrupt the function of a cell-surface transport protein called FLVCR that pumps heme out of the cell, it will increase the oxidative stress in the mosquito gut and hamper Plasmodium at a crucial point in the parasite's life cycle.

The researchers isolated the FLVCR gene from two common malaria-transmitting mosquitoes and showed that the gene encodes a protein that exports heme and protects cells from oxidative stress. Using gene-silencing techniques, they were able to significantly reduce levels of FLVCR in the mosquito gut.

"If disruption of the function of the protein inhibits parasite transmission, then we can potentially use parts of the protein as an antigen to try to stimulate a vaccine in people," said Quigley, who is assistant professor of medicine at the UIC College of Medicine and senior author of the study. "So the antibody blocks FLVCR and increases oxidative stress, and now the Plasmodium is not able to complete its life cycle, thus preventing the spread of malaria."

Quigley's research is ongoing, and future studies will focus on whether inhibiting FLVCR can block Plasmodium transmission. The research, he says, may be applicable to all blood-eating insects that cause a variety of diseases, such as West Nile Virus, dengue fever and leishmaniasis.


Contact: Sherri McGinnis Gonzlez
University of Illinois at Chicago

Related medicine news :

1. New clue in leukemia mystery: Researchers identify poison employed by deadly enzyme mutations
2. Less is more, when it comes to sugary, high-caffeine energy drinks, researchers say
3. University of Utah and Harvard researchers take major step toward first biological test for autism
4. BUSM researchers show an oncolytic virus switches off cancer cell survival signal
5. Researchers use patients own blood to treat hamstring injury
6. Sporadic breast cancers start with ineffective DNA repair systems, Pitt researchers find
7. Researchers identify a molecular switch that controls neuronal migration in the developing brain
8. UCLA researchers discover drug resistance mechanisms in most common form of melanoma
9. Researchers shine light on how some melanoma tumors evade drug treatment
10. New function of gene in promoting cancer found by VCU researchers
11. Stanford researchers first to turn normal cells into 3-D cancers in tissue culture dishes
Post Your Comments:
(Date:6/26/2016)... ... ... Pixel Film Studios Released ProSlice Levels, a Media Slicing Effect Plugin ... whole new perspective by using the title layers in ProSlice Levels to split-up ... Levels contains over 30 Different presets to choose from. FCPX users can ...
(Date:6/25/2016)... (PRWEB) , ... June 25, 2016 , ... Austin residents ... the American College of Mohs Surgery and to Dr. Russell Peckham for medical and ... highly effective treatment for skin cancer. The selective fellowship in Mohs Micrographic Surgery completed ...
(Date:6/25/2016)... ... June 25, 2016 , ... Dr. Calvin ... injury. Recently, he has implemented orthobiologic procedures as a method for treating his ... of the first doctors to perform the treatment. Orthobiologics are substances that orthopaedic ...
(Date:6/24/2016)... ... 24, 2016 , ... June 19, 2016 is World Sickle Cell Observance Day. ... the benefits of holistic treatments, Serenity Recovery Center of Marne, Michigan, has ... , Sickle Cell Disease (SCD) is a disorder of the red blood cells, which ...
(Date:6/24/2016)... ... ... Comfort Keepers® of San Diego, CA is excited to announce they are ... drive cancer patients to and from their cancer treatments. Comfort Keepers provides quality ... and ongoing independence. Getting to and from medical treatments is one of the ...
Breaking Medicine News(10 mins):
(Date:6/23/2016)... Research and Markets has announced the ... report to their offering. ... favourable commercial environment for MedImmune to enter. The US ageing ... serve to drive considerable growth for effective anti-influenza medications. The ... sales considerably, but development is still in its infancy. ...
(Date:6/23/2016)... -- , , , WHEN: , ... , , , LOCATION: , , , Online, with free ... EXPERT PANELISTS:  , , , Frost & Sullivan,s Global Vice President ... Industry Analyst, Divyaa Ravishankar and Unmesh Lal, Program Manager , ... is witnessing an exceptional era. Several new demand spaces, such as ...
(Date:6/23/2016)... Ill. and BOGOTA, Colombia , June 23, 2016  Astellas today announced the establishment ... Astellas Farma Brasil as the company,s second affiliate in Latin America . ... ... General Manager of Astellas Farma Colombia ... ...
Breaking Medicine Technology: