Macrophage migration inhibitory factor (MIF) is a proinflammatory and proproliferative cytokine expressed in humans. MIF homologs also exist in many pathogenic protozoans, including Entamoeba, Plasmodium, Toxoplasma, and Leishmania. Production of antibodies against parasite proteins allows for the generation of assays to measure and visualize parasite infection within hosts. In this chapter, we describe how to specifically purify antibodies against Entamoeba histolytica MIF (EhMIF), and subsequently use anti-EhMIF antibodies for ELISA on mouse and human samples and for immunohistochemistry on human tissue. These methods can be applied to any protein for high-quality antibody purification.
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