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      Correlation between the activity of digestive enzymes and nonself recognition in the gut of Eisenia andrei earthworms.

      Journal of Invertebrate Pathology
      Animals, Bacillus subtilis, immunology, Cellulases, metabolism, Escherichia coli, Hexosaminidases, Immunity, Innate, Muramidase, physiology, Oligochaeta, enzymology, microbiology, Peptide Hydrolases, RNA, Messenger, Saccharomyces cerevisiae, Up-Regulation

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          Abstract

          Earthworms Eisenia andrei, similarly to other invertebrates, rely on innate defense mechanisms based on the capability to recognize and respond to nonself. Here, we show a correlation between the expression of CCF, a crucial pattern-recognition receptor, and lysozyme, with enzyme activities in the gut of E. andrei earthworms following a microbial challenge. These data suggest that enzyme activities important for the release and recognition of molecular patterns by pattern-recognition molecules, as well as enzymes involved in effector pathways, are modulated during the microbial challenge. In particular, protease, laminarinase, and glucosaminidase activities were increased in parallel to up-regulated CCF and lysozyme expression. Copyright © 2013 Elsevier Inc. All rights reserved.

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