Smith, Joseph

Faculty Profile

First Name: 
Joseph
Last Name: 
Smith
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Title: 
Associate Member
Primary Institution: 
Seattle BioMed
Department/Division: 
other
Department/Division: 
other
Mail/Box #: 

357238

Office Location: 

Seattle Biomedical Research Institute
307 Westlake Ave. N., Suite 500
Seattle, WA 98109-5219

Office Phone: 
(206) 256-7384
Research

Research Summary: 

Dr. Smith’s research on Plasmodium falciparum seeks to understand the processes of antigenic variation and cytoadherence, key factors in parasite immune evasion and a virulence determinant for the parasite. During the blood stage development, P. falciparum parasites export cytoadhesive proteins to the infected erythrocyte surface that allow infected erythrocytes to sequester from blood circulation. This process allows parasites to avoid spleen-dependent killing mechanisms, but can lead to severe disease complications when infected erythrocytes accumulate in brain or placental blood vessels.

The parasite proteins involved in infected erythrocyte sequestration are called P. falciparum erythrocyte membrane protein 1 (PfEMP1). PfEMP1 proteins are encoded by approximately 60 var genes per parasite isolate, but are expressed in a mutually exclusive fashion. Switching between var genes allows the parasite to evade immune destruction and sequester at different sites in the body.

Dr. Smith’s lab is studying the binding properties and genetic diversity of PfEMP1 proteins, in order to develop interventions that can prevent malaria disease complications.  The lab is investigating the pathogenesis of cerebral malaria and other severe malaria complications.

Short Research Description: 
Malaria invasion and pathogenesis
Areas of Interest: 
Microbiology, Infection & Immunity
Keywords: 
<p> Malaria, antigenic variation, invasion, vaccine, binding ligands</p>
Publications

Taking Students
Year: 
2013 - 2014