Literature DB >> 7594668

Identification of virulence-associated antigens and plasmids in Rhodococcus equi from patients with AIDS.

S Takai1, Y Imai, N Fukunaga, Y Uchida, K Kamisawa, Y Sasaki, S Tsubaki, T Sekizaki.   

Abstract

Rhodococcus equi is an emerging opportunistic pathogen of human immunodeficiency virus-infected patients. However, little is known about the characteristics of R. equi isolates from humans. This study characterized the plasmid content, expression of a virulence-associated antigen, and mouse virulence of 19 R. equi isolates from patients with and without AIDS. EcoRI digestion patterns and Southern, Western, and virulence analyses of these isolates with cryptic plasmids allowed definition of a new category of R. equi. Isolates from patients with AIDS tended either to be virulent and have 15- to 17-kDa antigens and an 85-kb plasmid (10(6) bacteria needed for lethality) or have intermediate virulence (10(7) bacteria needed for lethality) and one of four distinct large plasmids that share DNA homology and express a 20-kDa antigen. Most of the non-AIDS isolates were avirulent (> 10(8) bacteria needed for lethality) and did not express any of these antigens.

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Year:  1995        PMID： 7594668     DOI： 10.1093/infdis/172.5.1306

Source DB:  PubMed          Journal:  J Infect Dis        ISSN： 0022-1899            Impact factor:   5.226


  27 in total

1.  DNA sequence and comparison of virulence plasmids from Rhodococcus equi ATCC 33701 and 103.

Authors:  S Takai; S A Hines; T Sekizaki; V M Nicholson; D A Alperin; M Osaki; D Takamatsu; M Nakamura; K Suzuki; N Ogino; T Kakuda; H Dan; J F Prescott
Journal:  Infect Immun       Date:  2000-12       Impact factor: 3.441

2.  Restriction enzyme analysis of the virulence plasmids of VapA-positive Rhodococcus equi strains isolated from humans and horses.

Authors:  V M Nicholson; J F Prescott
Journal:  J Clin Microbiol       Date:  1997-03       Impact factor: 5.948

3.  Virulence plasmid of Rhodococcus equi contains inducible gene family encoding secreted proteins.

Authors:  B A Byrne; J F Prescott; G H Palmer; S Takai; V M Nicholson; D C Alperin; S A Hines
Journal:  Infect Immun       Date:  2001-02       Impact factor: 3.441

4.  Phenotypic mutants of the intracellular actinomycete Rhodococcus equi created by in vivo Himar1 transposon mutagenesis.

Authors:  Joseph Ashour; Mary K Hondalus
Journal:  J Bacteriol       Date:  2003-04       Impact factor: 3.490

5.  Emergence of rifampin-resistant Rhodococcus equi in an infected foal.

Authors:  S Takai; K Takeda; Y Nakano; T Karasawa; J Furugoori; Y Sasaki; S Tsubaki; T Higuchi; T Anzai; R Wada; M Kamada
Journal:  J Clin Microbiol       Date:  1997-07       Impact factor: 5.948

6.  Serologic responses to Rhodococcus equi in individuals with and without human immunodeficiency virus infection.

Authors:  V Vullo; C M Mastroianni; M Lichtner; F Mengoni; E Chiappini; C D'Agostino; S Delia
Journal:  Eur J Clin Microbiol Infect Dis       Date:  1996-07       Impact factor: 3.267

7.  Characterization of virulence plasmids and serotyping of rhodococcus equi isolates from submaxillary lymph nodes of pigs in Hungary.

Authors:  László Makrai; Saki Takayama; Béla Dénes; István Hajtós; Yukako Sasaki; Tsutomu Kakuda; Shiro Tsubaki; Andrea Major; László Fodor; János Varga; Shinji Takai
Journal:  J Clin Microbiol       Date:  2005-03       Impact factor: 5.948

8.  Identification of intermediately virulent Rhodococcus equi isolates from pigs.

Authors:  S Takai; N Fukunaga; S Ochiai; Y Imai; Y Sasaki; S Tsubaki; T Sekizaki
Journal:  J Clin Microbiol       Date:  1996-04       Impact factor: 5.948

9.  Rapid identification of Rhodococcus equi by a PCR assay targeting the choE gene.

Authors:  Néstor Ladrón; Marta Fernández; Jesús Agüero; Bruno González Zörn; José A Vázquez-Boland; Jesús Navas
Journal:  J Clin Microbiol       Date:  2003-07       Impact factor: 5.948

10.  Plasmid Profiles and Prevalence of Intermediately Virulent Rhodococcus equi from Pigs in Nakhonpathom Province, Thailand: Identification of a New Variant of the 70-kb Virulence Plasmid, Type 18.

Authors:  Chaithep Poolkhet; Suksun Chumsing; Worawidh Wajjwalku; Chihiro Minato; Yukiko Otsu; Shinji Takai
Journal:  Vet Med Int       Date:  2009-12-09
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