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erythrocyte

Open Access | Plasmodium falciparum FIKK Kinase Members Target Distinct Components of the Erythrocyte Membrane

Author(s): 
Marta C. Nunes, Mami Okada, Christine Scheidig-Benatar, Brian M. Cooke, Artur Scherf
Reference: 
PLoS ONE 5(7): e11747
Contact email: 
ascherf@pasteur.fr

Our results suggest that FIKK members phosphorylate different membrane skeleton proteins of the infected erythrocyte in a stage-specific manner, inducing alterations in the mechanical properties of the parasite-infected red blood cell.

Targeting glutathione by dimethylfumarate protects against experimental malaria by enhancing erythrocyte cell membrane scrambling

Author(s): 
M Ghashghaeinia, D Bobbala, T Wieder, S Koka, J ück, B Fehrenbacher, M Rocken, M Schaller, F Lang, K Ghoreschi
Reference: 
Am J Physiol Cell Physiol (July 14, 2010)

The balance between GSH-levels and oxidative stress is critical for cell survival. The GSH-levels of erythrocytes are dramatically decreased during infection with Plasmodium spp.

Prevalence of 5′ insertion mutants and analysis of single nucleotide polymorphism in the erythrocyte binding-like 1 (ebl-1) gene in Kenyan Plasmodium falciparum field isolates

Author(s): 
Elijah K. Githui, David S. Peterson, Rashid A. Aman, Abdirahman I. Abdi
Reference: 
Infection, Genetics and Evolution, Volume 10, Issue 6, August 2010, Pages 833-838
Contact email: 
kegithui@yahoo.com

This study is now extended to include field isolates collected from sites within Kenya. DNA isolated from blood samples of infected patients was utilized to amplify the region I sequence of ebl-1 gene in order to investigate polymorphism in the region immediately adjacent to the 5′ cysteine-rich domains, and to determine the prevalence of an insertion mutant that effectively knocks out the gene.

Open Access | Complement Receptor 1 Is a Sialic Acid-Independent Erythrocyte Receptor of Plasmodium falciparum

Author(s): 
Carmenza Spadafora, Gordon A. Awandare, Karen M. Kopydlowski, Jozsef Czege, J. Kathleen Moch, Robert W. Finberg, George C. Tsokos, José A. Stoute
Reference: 
PLoS Pathog 6(6): e1000968
Contact email: 
jstoute@psu.edu

Plasmodium falciparum is a highly lethal malaria parasite of humans. A major portion of its life cycle is dedicated to invading and multiplying inside erythrocytes.

Open Access | Protein Kinase A Dependent Phosphorylation of Apical Membrane Antigen 1 Plays an Important Role in Erythrocyte Invasion by the Malaria Parasite

Author(s): 
Kerstin Leykauf, Moritz Treeck, Paul R. Gilson, Thomas Nebl, Thomas Braulke, Alan F. Cowman, Tim W. Gilberger, Brendan S. Crabb
Reference: 
PLoS Pathog 6(6): e1000941
Contact email: 
crabb@burnet.edu.au

Apicomplexan parasites are obligate intracellular parasites that infect a variety of hosts, causing significant diseases in livestock and humans. The invasive forms of the parasites invade their host cells by gliding motility, an active process driven by parasite adhesion proteins and molecular motors.

Open Access | Complement Receptor 1 Is a Sialic Acid-Independent Erythrocyte Receptor of Plasmodium falciparum

Author(s): 
Carmenza Spadafora, Gordon A. Awandare, Karen M. Kopydlowski, Jozsef Czege, J. Kathleen Moch, Robert W. Finberg, George C. Tsokos, José A. Stoute
Reference: 
PLoS Pathog 6(6): e1000968
Contact email: 
jstoute@psu.edu

Plasmodium falciparum is a highly lethal malaria parasite of humans. A major portion of its life cycle is dedicated to invading and multiplying inside erythrocytes. The molecular mechanisms of erythrocyte invasion are incompletely understood. P. falciparum depends heavily on sialic acid present on glycophorins to invade erythrocytes.

Open Access | Protein Kinase A Dependent Phosphorylation of Apical Membrane Antigen 1 Plays an Important Role in Erythrocyte Invasion by the Malaria Parasite

Author(s): 
Kerstin Leykauf, Moritz Treeck, Paul R. Gilson, Thomas Nebl, Thomas Braulke, Alan F. Cowman, Tim W. Gilberger, Brendan S. Crabb
Reference: 
PLoS Pathog 6(6): e1000941
Contact email: 
crabb@burnet.edu.au

Apicomplexan parasites are obligate intracellular parasites that infect a variety of hosts, causing significant diseases in livestock and humans. The invasive forms of the parasites invade their host cells by gliding motility, an active process driven by parasite adhesion proteins and molecular motors.

Antibodies to Chondroitin Sulfate A–Binding Infected Erythrocytes: Dynamics and Protection during Pregnancy in Women Receiving Intermittent Preventive Treatment

Author(s): 
Elizabeth H. Aitken, Bernard Mbewe, Mari Luntamo, Ken Maleta, Teija Kulmala, Marc‐James Friso, Freya J. I. Fowkes, James G. Beeson, Per Ashorn, and Stephen J. Rogerson
Reference: 
The Journal of Infectious Diseases 2010;201:1316–1325

Levels of IgG antibody to pregnancy‐specific VSAs decrease during receipt of IPTp. Antibody levels in early pregnancy did not predict clinical outcome. IPTp and decreasing malaria prevalence pose challenges for the evaluation of novel interventions for malaria during pregnancy.

Small variant surface antigens and Plasmodium evasion of immunity

Author(s): 
Jemmely, Noelle Yvonne1; Niang, Makhtar; Preiser, Peter Rainer
Reference: 
Future Microbiology, Volume 5, Number 4, April 2010 , pp. 663-682(20)
Contact email: 
noel0003@ntu.edu.sg

 
In this article, we highlight our current understanding of these variant antigens and provide insights on the mechanisms developed by malaria parasites to effectively avoid the host immune response and establish chronic infection.

Review: Erythrocyte binding ligands in malaria parasites: Intracellular trafficking and parasite virulence

Author(s): 
Richard Culleton, Osamu Kaneko
Reference: 
Acta Tropica, Volume 114, Issue 3, June 2010, Pages 131-137
Contact email: 
okaneko@nagasaki-u.ac.jp

In this review, we describe the current understanding of the role of EBL and other erythrocyte binding ligands in erythrocyte invasion, and discuss the mechanisms by which they may control multiplication rates and virulence in malaria parasites.

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