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  • Title: Candidate genes responsible for common and different pathology of infected muscle tissues between Trichinella spiralis and T. pseudospiralis infection.
    Author: Wu Z, Nagano I, Takahashi Y.
    Journal: Parasitol Int; 2008 Sep; 57(3):368-78. PubMed ID: 18501667.
    Abstract:
    The gene expression profiles were compared between Trichinella spiralis- and T. pseudospiralis-infected muscle tissues by means of a cDNA microarray. Out of 30,000 genes, the expressions of 55 genes were up-regulated in both T. spiralis and T. pseudospiralis infections, 24 genes were down-regulated in both Trichinella infections, 30 genes were up-regulated only in T. spiralis infection, 23 genes were down-regulated only in T. spiralis infection, 25 genes were up-regulated only in T. pseudospiralis infection, and 21 genes were down-regulated only in T. pseudospiralis infection. Many of these differentially expressed genes were associated with satellite cell activation and proliferation (paired box gene 7, Pax7; Pax3; desmin; M-cadherin), myogenesis and muscle development (eyes absent 2 homolog, Eya2; myocyte enhancer factor 2C, MEF2C; pre B-cell leukemia transcription factor 1, Pbx1; chordin-like 2, Chrdl2), cell differentiation (galectin 1; insulin like growth factors, IGFs; c-ski; msh-like 1, Msx1; Numb), cell proliferation and cycle regulation (retinoblastoma 1, Rb1; granulin; p21, CDK4, cyclin A2), and apoptosis (tumor necrosis factor receptor 1, TNF-R1; programmed cell death protein 11, Pdcd11; Pdcd1; nuclear protein 1, Nuprl; clusterin, CLU). The differential expression of 17 genes was validated by quantitative real time PCR and 15 genes showed identical results with the microarray analysis. The present study listed the candidate genes that were commonly and differentially expressed between T. spiralis and/or T. pseudospiralis infection, thus suggesting that these genes need to be further investigated to reveal the mechanism of the common and/or different pathological changes induced by the two species Trichinella.
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