PMID- 7591119 OWN - NLM STAT- MEDLINE DCOM- 19951228 LR - 20220310 IS - 0019-9567 (Print) IS - 1098-5522 (Electronic) IS - 0019-9567 (Linking) VI - 63 IP - 12 DP - 1995 Dec TI - Cytokine mRNA expression profiles in rats infected with the intestinal nematode Nippostrongylus brasiliensis. PG - 4653-60 AB - Although the immune responses to intestinal nematode infection have been well studied and have been shown to be strongly driven by Th2-associated cytokines in mice, such information has been limited with respect to rats. We investigated changes in levels of the mRNAs encoding interleukin-2 (IL-2), IL-3, IL-4, IL-5, IL-10, and gamma interferon in the mesenteric lymph nodes of rats infected with Nippostrongylus brasiliensis by reverse transcription-PCR in comparison with immunoglobulin E (IgE)/IgG2a antibody, eosinophil, basophil, and mucosal mast cell responses. In the two rat strains used, Brown Norway and Fischer-344, which show different responses to allergens, serum IgE increased to much higher levels in the former than in the latter 2 weeks after infection. Intestinal mastocytosis was observed much earlier and more intensely in Brown Norway rats than in Fischer-344 rats, but the degrees of peripheral eosinophilia and basophilia did not differ between the two strains. In both strains, IL-3, IL-4, and IL-5 mRNA expression increased and peaked around 7 to 14 days after infection, while expression of IL-2, IL-10, and gamma interferon mRNAs did not change notably throughout the experimental period. The highest IL-4 mRNA expression was observed slightly earlier in Brown Norway than in Fischer-344 rats, but levels of IL-3 and IL-5 mRNAs peaked synchronously in both strains. The amounts of mRNAs encoding these three cytokines were always higher in Brown Norway than in Fischer-344 rats. It is suggested that in rats, Th2 or Th2-like cells are also induced after nematode infection, and IgE elevation is mainly related to increased IL-4 gene expression. FAU - Matsuda, S AU - Matsuda S AD - Department of Medical Zoology, Kyoto Prefectural University of Medicine, Japan. FAU - Uchikawa, R AU - Uchikawa R FAU - Yamada, M AU - Yamada M FAU - Arizono, N AU - Arizono N LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Infect Immun JT - Infection and immunity JID - 0246127 RN - 0 (Cytokines) RN - 0 (RNA, Messenger) RN - 82115-62-6 (Interferon-gamma) SB - IM MH - Animals MH - Base Sequence MH - Cytokines/*biosynthesis/genetics MH - Interferon-gamma/genetics MH - Male MH - Mice MH - Molecular Sequence Data MH - Nippostrongylus/*immunology MH - Polymerase Chain Reaction MH - RNA, Messenger/*biosynthesis MH - Rats MH - Rats, Inbred BN MH - Rats, Inbred F344 MH - Species Specificity MH - Strongylida Infections/*immunology MH - T-Lymphocytes, Helper-Inducer/immunology PMC - PMC173668 EDAT- 1995/12/01 00:00 MHDA- 1995/12/01 00:01 PMCR- 1995/12/01 CRDT- 1995/12/01 00:00 PHST- 1995/12/01 00:00 [pubmed] PHST- 1995/12/01 00:01 [medline] PHST- 1995/12/01 00:00 [entrez] PHST- 1995/12/01 00:00 [pmc-release] AID - 10.1128/iai.63.12.4653-4660.1995 [doi] PST - ppublish SO - Infect Immun. 1995 Dec;63(12):4653-60. doi: 10.1128/iai.63.12.4653-4660.1995.