Abstract：
:Crude salivary gland derived proteins from Amblyomma americanum ticks were analyzed by physiochemical (gel filtration and ion exchange chromatography) and immunochemical guinea pig IgG1 (anti-tick immunoaffinity column) techniques for the presence of antigens responsible for the induction of host immune resistance responses. Gel filtration (G-75 Sephadex) and ion exchange (diethyl aminoethyl cellulose) chromatography of crude salivary gland antigen yielded multiple fractions, but only one fraction from each procedure induced significant cutaneous anaphylaxis bluing reactions when used for skin tests in tick sensitized animals treated intravenously with 0.5% Evans blue dye. Salivary gland antigen (200 ng) eluted from the immunoaffinity column by 0.2 M Na2CO3, pH 11.3, and emulsified with incomplete Freund's adjuvant conferred a significant level of tick rejection (24%, P less than 0.001) on naive guinea pigs compared with that seen in controls, but less than (P less than 0.01) the level of immunity conferred by crude salivary gland antigen (380 micrograms). The immunizing dose of immunoaffinity purified salivary gland antigen was 1/1900 the dose of the crude antigen preparation representing 99.9% purification. Furthermore, engorged ticks from animals immunized with salivary gland antigen exhibited a significant decrease (P less than 0.001) in weight compared with ticks from naive animals. Sodium dodecyl sulfate-polyacrylamide gel electrophoresis of 125I labeled proteins in the Na2CO3 eluate and the skin reactive fraction from gel filtration and ion-exchange chromatography, after immunoprecipitation with a guinea pig IgG1 antibody to the tick that transferred resistance, revealed the presence of a 20 kDa weight protein reported previously to be the antigen responsible for the induction of host resistance. These studies present physiochemical and immunochemical procedures for the purification of an important tick protein that induces skin reactions in tick sensitized guinea pigs, is recognized by antibody to the tick, and most importantly, is capable of immunizing naive guinea pigs against tick challenge.
journal_name
Exp Parasitoljournal_title
Experimental parasitologyauthors
Brown SJ,Askenase PWdoi
10.1016/0014-4894(86)90006-8subject
Has Abstractpub_date
1986-08-01 00:00:00pages
40-50issue
1eissn
0014-4894issn
1090-2449journal_volume
62pub_type
杂志文章abstract：:Acanthamoeba infections cause serious humans diseases, such as amoebic keratitis and granulomatous amoebic encephalitis. Melaleuca essential oil has been reported to be effective in treating bacterial and fungal infections. However, the anti-parasitic effects of this essential oil are not well studied. In the present ...
journal_title：Experimental parasitology
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journal_title：Experimental parasitology
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journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/j.exppara.2013.09.014
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journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/j.exppara.2012.01.016
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journal_title：Experimental parasitology
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journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/j.exppara.2017.08.010
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journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/j.exppara.2014.02.014
更新日期：2014-11-01 00:00:00
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journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1006/expr.1994.1103
更新日期：1994-11-01 00:00:00
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journal_title：Experimental parasitology
pub_type： 杂志文章
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更新日期：2011-01-01 00:00:00
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journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/j.exppara.2007.12.015
更新日期：2008-05-01 00:00:00
abstract：:Thirty U.S. Trypanosoma cruzi stocks isolated mainly from wild mammals were characterized by multilocus enzyme electrophoresis at 22 genetic loci and random amplification of polymorphic DNA for 10 primers. Two main phylogenetic clusters, separated by large genetic distances, were discriminated by both methods, corresp...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1006/expr.2001.4651
更新日期：2001-10-01 00:00:00
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journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1006/expr.2000.4576
更新日期：2001-01-01 00:00:00
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journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/j.exppara.2009.02.011
更新日期：2009-06-01 00:00:00
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journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/j.exppara.2005.12.006
更新日期：2006-06-01 00:00:00
abstract：:The experiments described here report on the correlation between the ex vivo diffusion of different benzimidazole (BZD) anthelmintics into the cestode parasite Moniezia benedeni, and their octanol-water partition coefficients (P.C.). The characterisation of the drug diffusion process into target parasites is relevant ...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/s0014-4894(03)00060-2
更新日期：2003-01-01 00:00:00
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journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/j.exppara.2006.01.008
更新日期：2006-07-01 00:00:00
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journal_title：Experimental parasitology
pub_type： 杂志文章
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更新日期：1983-04-01 00:00:00
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journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1006/expr.1999.4342
更新日期：1999-01-01 00:00:00
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journal_title：Experimental parasitology
pub_type： 杂志文章,评审
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更新日期：1991-07-01 00:00:00
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journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/j.exppara.2005.11.015
更新日期：2006-04-01 00:00:00
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journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/j.exppara.2008.10.006
更新日期：2009-02-01 00:00:00
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journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/0014-4894(84)90061-4
更新日期：1984-02-01 00:00:00
abstract：:Complement activation by protoscoleces of Echinococcus granulosus was studied by analyzing the damage to their tegumental membrane produced by incubation in both normal and hydatid human sera. The state of the apical tegumental membrane was evaluated by measuring the electric potential difference with microelectrodes....
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/0014-4894(92)90211-r
更新日期：1992-11-01 00:00:00
abstract：:Three different cell lines (murine macrophages, HeLa and osteosarcoma cells) were assayed in order to check for the manifestation of the cytopathic effects of three strains of Acanthamoeba recently isolated in our laboratory from contact lens cases: CLC-16, CLC-41.r and CLC-51-l. Adhesion and cytotoxicity assays were ...
journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/j.exppara.2009.10.011
更新日期：2010-09-01 00:00:00
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journal_title：Experimental parasitology
pub_type： 杂志文章
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更新日期：2016-07-01 00:00:00
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journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/j.exppara.2019.107737
更新日期：2019-10-01 00:00:00
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journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1016/j.exppara.2009.12.024
更新日期：2010-06-01 00:00:00
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journal_title：Experimental parasitology
pub_type： 杂志文章
doi：10.1006/expr.1994.1091
更新日期：1994-11-01 00:00:00
abstract：:A cell-free culture system for Cryptosporidium parvum was analysed using scanning electron microscopy (SEM) to characterise life cycle stages and compare gene expression in cell-free culture and cell culture using HCT-8 cells. Cryptosporidium parvum samples were harvested at 2 h, 8 h, 14 h, 26 h, 50 h, 74 h, 98 h, 122...
journal_title：Experimental parasitology
pub_type： 杂志文章
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更新日期：2015-06-01 00:00:00
