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Title: Establishment of a human hepatocyte line that supports in vitro development of the exo-erythrocytic stages of the malaria parasites Plasmodium falciparum and P. vivax
Authors: Jetsumon Sattabongkot
Nongnuch Yimamnuaychoke
Surasak Leelaudomlipi
Maneerat Rasameesoraj
Rachaneeporn Jenwithisuk
Russell E. Coleman
Rachanee Udomsangpetch
Liwang Cui
Thomas G. Brewer
Armed Forces Research Institute of Medical Sciences, Thailand
Pennsylvania State University
Mahidol University
Keywords: Immunology and Microbiology;Medicine
Issue Date: 1-May-2006
Citation: American Journal of Tropical Medicine and Hygiene. Vol.74, No.5 (2006), 708-715
Abstract: Our understanding of the biology of malaria parasite liver stages is limited because of the lack of efficient in vitro systems that support the exo-erythrocytic (EE) development of the parasite. We report the development of a new hepatocyte line (HC-04) from normal human liver cells. The HC-04 cells have proliferated in hormone-free medium for more than 200 passages. The cells were hyperdiploid, resembled liver parenchymal cells, and synthesized major liverspecific proteins and enzymes. Using Plasmodium falciparum and P. vivax sporozoites harvested from salivary glands of infected mosquitoes, we showed that HC-04 cells supported the complete EE development of these two most prevalent human malaria parasites. The EE parasites attained full maturation as shown by their infectivity to human erythrocytes. The infection rates of the liver cells were estimated to be 0.066% and 0.041%for P. falciparum and P. vivax, respectively. As the first human hepatocyte line known to support complete EE development of both P. falciparum and P. vivax, HC-04 will provide an experimental model that can be used for studying the biology of liver stage malaria parasites. Copyright © 2006 by The American Society of Tropical Medicine and Hygiene.
ISSN: 00029637
Appears in Collections:Scopus 2006-2010

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