The Latest Malaria News, in 60 Seconds.

Pb22, a protein expressed by Plasmodium berghei, may play an important role in the transmission of malaria, and review on the use of tafenoquine finds that the drug is well-tolerated and effective.

Malaria Minute on iTunes and Spotify


Transcript:

Pb22, a protein expressed by the mouse malaria parasite Plasmodium berghei, may play an important role in the transmission of malaria. In parasites without the protein, less exflagellation was recorded in vitro, and the ability of the parasite to form ookinetes and oocysts – critical stages of its life cycle in the mosquito – was prevented. And antibodies from mice immunised with the protein almost completely blocked transmission to mosquitoes. The Pb22 homologues in human malaria parasites could, therefore, be an important target for transmission-blocking therapies and warrant investigation.

A review on the use of tafenoquine in preventing malaria has found that the drug is well-tolerated and effective for both P. falciparum and P. vivax malaria, with adverse events comparable to other drugs. Patients must be tested for G6PD-deficiency beforehand, however, as the drug can cause anaemia for those with the condition.

Sources:

A Conserved Malaria Parasite Antigen Pb22 Plays a Critical Role in Male Gametogenesis in Plasmodium Berghei

Efficacy and Safety of Tafenoquine for Malaria Chemoprophylaxis (1998-2020): A Systematic Review and Meta-Analysis


Image Credits: CDC/ Dr. Mae Melvin [18761]

Scientific Advisor: Katharine Collins, Radboud University Medical Centre

Print Friendly, PDF & Email
Categories: Malaria Minute