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Acanthamoeba Secretes Extracellular Aminopeptidases To Target Cells For Phagocytosis By Disruption | 78643
ISSN: 2161-0681

Journal of Clinical & Experimental Pathology
Open Access

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Acanthamoeba secretes extracellular aminopeptidases to target cells for phagocytosis by disruption

13th European Pathology Congress

Wei-Chen Lin

National Cheng Kung University, Taiwan

Posters & Accepted Abstracts: J Clin Exp Pathol

DOI: 10.4172/2161-0681-C1-038

Abstract
Acanthamoeba is free-living protist pathogen capable of causing a blinding keratitis and granulomatous encephalitis. However, the pathogenesis mechanisms of Acanthamoeba are still not clear. Here, our results show that the rat glial C6 cells co-cultured with Acanthamoeba would be spherical and floated, even without contact the protists. And then, the Acanthamoeba protists would contact and engulf these cells. In order to clarify the contact-independent pathogenesis mechanism in Acanthamoeba, we collected the Acanthamoeba secreted proteins (Asp) to incubate with cells for identifying the extracellular virulent factors and investigating the cytotoxic process. Pre-treating the Asp with aminopeptidase inhibitor and the specific antibodies of Acanthamoeba aminopeptidase could delay the progression of cell disruption during Asp and cells co-incubation. Overall, these results suggest an important functional role of the Acanthamoeba secreted extracellular aminopeptidases in Acanthamoeba pathogenesis process. This study provides new perspectives for the study of the mechanism involved in the Acanthamoeba infection.
Biography

Wei-Chen Lin has completed his PhD from Chang Gung University and postdoctoral studies in the Center of Disease Control, Taiwan. Dr. Lin is one of the pioneers on studying miRNA gene regulatory network in protozoan. His major research interest is to use bioinformatics approaches to integrate data generated by highthroughput technologies to compare the gene, protein and miRNA expression levels of protozoan as a basis to elucidate the interactome of pathogen-host.
 

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