Exoantigen test for identification of Petriellidium boydii cultures

Morace, Giulia; Polonelli, Luciano

doi:10.1128/jcm.14.3.237-240.1981

Cited by 15 publications

(6 citation statements)

References 22 publications

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“…1A). Similar cross-reactions were observed when heterologous exoanti- Id or A E. jeanselmei (17) A or Id A E. werneckii 7A or Id A E. spinifera 5A or Id A E. moniliae (1) Id A F. pedrosoi (11) Id A F. compacta (5) A or Id A P. verrucosa (8) A or Id A P. repens (4) A A P. richardsiae (6) A A P. hoffmannii 4A or Id A Cladosporium spp. 2A or Id A C. elatum 2A or Id A C. bantianum 8A or Id A…”

Section: Resultssupporting

confidence: 62%

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Exoantigen test for differentiation of Exophiala jeanselmei and Wangiella dermatitidis isolates from other dematiaceous fungi

Espinel-Ingroff¹,

Shadomy²,

Kerkering³

et al. 1984

J Clin Microbiol

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Concentrated (25x) exoantigens of 105 isolates of pathogenic and saprophytic dematiaceous fungi and 3 isolates of Sporothrix schenckii were analyzed by the microimmunodiffusion method. The reagents used were nonadsorbed and adsorbed sera produced in New Zealand rabbits. One set of rabbits was immunized with soluble antigens of a 1-month-old culture of Exophiala jeanselmei (ATCC 34123), and the other set was immunized with soluble antigens from a culture of Wangiella demattidis (ATCC 28869). The reference antigens were 25 x-concentrated exoantigens of the above cultures. This exoantigen test permitted the differentiation of E. jeanselmei and W. dermatitidis from one another as well as from other Exophiala species, Fonsecaea species, Phialophora species, Cladosporium species, Rhinocladiella species, and Sporothrix schenckii by presence or absence of lines of identity or of partial identity, or lines of nonidentity. Using adsorbed serum eliminated the problems with cross-reactivity seen with nonadsorbed serum. Thus, with an adsorbed serum as the reagent, it was possible to presumptively differentiate E. jeanselmei and W. dermatidis from one another and from other dematiaceous fungi.

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Section: Resultssupporting

confidence: 62%

“…The exoantigen test has been used for a number of years for the serological differentiation or identification of several fungal pathogens (3,5,6,11,(14)(15)(16). Antigenic differences between E. jeanselmei and W. dermatitidis have been demonstrated and factor sera for their differentiation have been produced (7).…”

mentioning

confidence: 99%

Exoantigen test for differentiation of Exophiala jeanselmei and Wangiella dermatitidis isolates from other dematiaceous fungi

Espinel-Ingroff¹,

Shadomy²,

Kerkering³

et al. 1984

J Clin Microbiol

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“…Strains without ascomata can be recognized by their two typical anamorphs: Scedosporium apiospermum, with long, cylindrical conidiogenous cells producing slimy heads of subhyaline to brown, subspherical to elongated conidia, and Graphium eumorphum, with erect synnemata (a bundle of conidiophores sporulating in the apical part) (118). P. boydii is usually recognized by its morphological features, but to facilitate its identification, several serological techniques have been developed (316,355,365), which can even recognize the pathogen in tissue (259). Several physiological properties of P. boydii have also been investigated for use as diagnostic tools to differentiate it from similar species such as Scedosporium prolificans (102).…”

Section: Unitunicate Pyrenomycetesmentioning

confidence: 99%

Developments in Fungal Taxonomy

1999

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SUMMARY Fungal infections, especially those caused by opportunistic species, have become substantially more common in recent decades. Numerous species cause human infections, and several new human pathogens are discovered yearly. This situation has created an increasing interest in fungal taxonomy and has led to the development of new methods and approaches to fungal biosystematics which have promoted important practical advances in identification procedures. However, the significance of some data provided by the new approaches is still unclear, and results drawn from such studies may even increase nomenclatural confusion. Analyses of rRNA and rDNA sequences constitute an important complement of the morphological criteria needed to allow clinical fungi to be more easily identified and placed on a single phylogenetic tree. Most of the pathogenic fungi so far described belong to the kingdom Fungi; two belong to the kingdom Chromista. Within the Fungi, they are distributed in three phyla and in 15 orders (Pneumocystidales, Saccharomycetales, Dothideales, Sordariales, Onygenales, Eurotiales, Hypocreales, Ophiostomatales, Microascales, Tremellales, Poriales, Stereales, Agaricales, Schizophyllales, and Ustilaginales).

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“…For comparative purposes, exoantigens were also produced from C. albicans CDC-B385 and C. neoformans CDC-B551. Each patient's serum was tested against each exoantigen by microimmunodiffusion [25]. Because we lacked a reference antiserum to B. capitatus, it was impossible to evaluate the homology or heterology of the precipitin bands we observed.…”

Section: Laboratory Studiesmentioning

confidence: 99%

Blastoschizomyces capitatus: An Emerging Cause of Invasive Fungal Disease in Leukemia Patients

Martino

Venditti²,

Micozzi³

et al. 1990

Clinical Infectious Diseases

125

109

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Blastoschizomyces capitatus (formerly named Trichosporon capitatum or Geotrichum capitatum) is a rare cause of invasive fungal disease in immunocompromised hosts. We retrospectively studied epidemiologie, clinical, pathologic, and microbiologie features of this infection during a 68-month period at the Division of Hematology of the University La Sapienza in Rome. Twenty patients with evidence of B. capitatus were identified: 12 were infected, four were possibly infected, and four had evidence of B. capitatus colonization but were not infected by this fungus. Pulmonary infiltrates were seen in seven infected patients; four of these patients eventualfy developed mycetomalike cavitations. Eight infected patients presented clinical and radiologie features of focal hepatitis compatible with hepatosplenic candidiasis. Of the 12 infected patients, two did not receive any antifungal treatment and died, five did not show any response to systemic antifungal therapy, and five received prolonged amphotericin B plus 5-fluorocytosine therapy. Of the last group, three patients achieved stable remission of their acute leukemia and were cured, and two improved but had an apparent relapse of B. capitatus infection after their acute leukemia recurred.

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Exoantigen test for identification of Petriellidium boydii cultures

Cited by 15 publications

References 22 publications

Exoantigen test for differentiation of Exophiala jeanselmei and Wangiella dermatitidis isolates from other dematiaceous fungi

Exoantigen test for differentiation of Exophiala jeanselmei and Wangiella dermatitidis isolates from other dematiaceous fungi

Developments in Fungal Taxonomy

Blastoschizomyces capitatus: An Emerging Cause of Invasive Fungal Disease in Leukemia Patients

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