{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,21]],"date-time":"2026-07-21T02:22:09Z","timestamp":1784600529775,"version":"3.55.0"},"reference-count":37,"publisher":"American Society for Microbiology","issue":"4","license":[{"start":{"date-parts":[[2007,4,1]],"date-time":"2007-04-01T00:00:00Z","timestamp":1175385600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.asm.org\/non-commercial-tdm-license"}],"content-domain":{"domain":["journals.asm.org"],"crossmark-restriction":true},"short-container-title":["Eukaryot Cell"],"published-print":{"date-parts":[[2007,4]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n          <jats:p>\n            The 29-kDa surface antigen (thiol-dependent peroxidase; Eh29) of\n            <jats:italic>Entamoeba histolytica<\/jats:italic>\n            exhibits peroxidative and protective antioxidant activities. During tissue invasion, the trophozoites are exposed to oxidative stress and need to deal with highly toxic reactive oxygen species (ROS). In this investigation, attempts have been made to understand the role of the 29-kDa peroxidase gene in parasite survival and pathogenesis. Inhibition of\n            <jats:italic>eh29<\/jats:italic>\n            gene expression by antisense RNA technology has shown approximately 55% inhibition in\n            <jats:italic>eh29<\/jats:italic>\n            expression, maximum ROS accumulation, and significantly lower viability in 29-kDa downregulated trophozoites during oxidative stress. The cytopathic and cytotoxic activities were also found to decrease effectively in the 29-kDa downregulated trophozoites. Size of liver abscesses was substantially lower in hamsters inoculated with 29-kDa downregulated trophozoites compared to the normal HM1:IMSS. These findings clearly suggest that the 29-kDa protein of\n            <jats:italic>E. histolytica<\/jats:italic>\n            has a role in both survival of trophozoites in the presence of ROS and pathogenesis of amoebiasis.\n          <\/jats:p>","DOI":"10.1128\/ec.00308-06","type":"journal-article","created":{"date-parts":[[2007,2,17]],"date-time":"2007-02-17T01:58:46Z","timestamp":1171677526000},"page":"664-673","update-policy":"https:\/\/doi.org\/10.1128\/asmj-crossmark-policy-page","source":"Crossref","is-referenced-by-count":62,"title":["The 29-Kilodalton Thiol-Dependent Peroxidase of\n            <i>Entamoeba histolytica<\/i>\n            Is a Factor Involved in Pathogenesis and Survival of the Parasite during Oxidative Stress"],"prefix":"10.1128","volume":"6","author":[{"given":"Abhik","family":"Sen","sequence":"first","affiliation":[{"name":"Division of Microbiology, National Institute of Cholera and Enteric Diseases, P-33, C.I.T. 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