{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,6]],"date-time":"2026-10-06T05:43:42Z","timestamp":1791265422467,"version":"4.1.0"},"reference-count":38,"publisher":"American Society for Microbiology","issue":"1","license":[{"start":{"date-parts":[[2011,1,1]],"date-time":"2011-01-01T00:00:00Z","timestamp":1293840000000},"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":["Antimicrob Agents Chemother"],"published-print":{"date-parts":[[2011,1]]},"abstract":"<jats:title>ABSTRACT<\/jats:title><jats:p>Paromomycin, an aminoglycoside antibiotic having low mammalian cell toxicity, is one of the drugs currently used in the chemotherapy of cutaneous and visceral leishmaniasis. In order to understand the mode of action of this antibiotic at the molecular level, we have investigated the effects of paromomycin on protein synthesis in<jats:italic>Leishmania<\/jats:italic>and its mammalian hosts. We were able to demonstrate that<jats:italic>in vivo<\/jats:italic>protein synthesis in the promastigote stage of the parasite and its proliferation rate are markedly inhibited by paromomycin while being only slightly affected by other aminoglycoside antibiotics, such as streptomycin and neomycin B. Furthermore, both<jats:italic>in vitro<\/jats:italic>polypeptide synthesis induced by poly(U) as mRNA and accuracy of translation are significantly decreased by paromomycin in cell-free systems containing ribosomal particles of<jats:italic>Leishmania<\/jats:italic>promastigotes. Conversely, when ribosomes from mammalian cells are used instead of the protozoan particles, polyphenylalanine synthesis is only barely reduced by the antibiotic and the translation misreading remains almost unaltered. Surface plasmon resonance analysis of the interaction between paromomycin and protozoan or mammalian cell ribosomal RNAs shows a strong binding of antibiotic to the parasite ribosomal decoding site and practically no interaction with the mammalian cell counterpart. Our results indicating differential effects of paromomycin on the translation processes of the<jats:italic>Leishmania<\/jats:italic>parasite and its mammalian hosts can explain the therapeutic efficiency of this antibiotic as an antileishmaniasis agent.<\/jats:p>","DOI":"10.1128\/aac.00506-10","type":"journal-article","created":{"date-parts":[[2010,10,19]],"date-time":"2010-10-19T03:54:41Z","timestamp":1287460481000},"page":"86-93","update-policy":"https:\/\/doi.org\/10.1128\/asmj-crossmark-policy-page","source":"Crossref","is-referenced-by-count":54,"title":["Differential Effects of Paromomycin on Ribosomes of<i>Leishmania mexicana<\/i>and Mammalian Cells"],"prefix":"10.1128","volume":"55","author":[{"given":"Marisa M.","family":"Ferna\u0301ndez","sequence":"first","affiliation":[{"name":"Ca\u0301tedra de Inmunologi\u0301a and Instituto de Estudios de la Inmunidad Humoral (IDEHU), CONICET-UBA, Facultad de Farmacia y Bioqui\u0301mica, Universidad de Buenos Aires, 1113 Buenos Aires"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Emilio L.","family":"Malchiodi","sequence":"additional","affiliation":[{"name":"Ca\u0301tedra de Inmunologi\u0301a and Instituto de Estudios de la Inmunidad Humoral (IDEHU), CONICET-UBA, Facultad de Farmacia y Bioqui\u0301mica, Universidad de Buenos Aires, 1113 Buenos Aires"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Israel D.","family":"Algranati","sequence":"additional","affiliation":[{"name":"Fundacio\u0301n Instituto Leloir, Patricias Argentinas 435, 1405 Buenos Aires, Argentina"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"235","reference":[{"key":"e_1_3_2_2_2","doi-asserted-by":"publisher","DOI":"10.1016\/0006-291X(80)91180-8"},{"key":"e_1_3_2_3_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.tim.2008.05.001"},{"key":"e_1_3_2_4_2","doi-asserted-by":"publisher","DOI":"10.1006\/expr.1996.4131"},{"key":"e_1_3_2_5_2","doi-asserted-by":"publisher","DOI":"10.1139\/o84-033"},{"key":"e_1_3_2_6_2","doi-asserted-by":"publisher","DOI":"10.1128\/AAC.27.2.172"},{"key":"e_1_3_2_7_2","first-page":"289","volume":"36","year":"1979","unstructured":"Brun, R., and M. 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