RRC ID 40090
著者 Toyotome T, Watanabe A, Ochiai E, Kamei K.
タイトル N-acetylated α-linked acidic dipeptidase is identified as an antigen of Histoplasma capsulatum.
ジャーナル Biochem Biophys Res Commun
Abstract Histoplasmosis, one of the most important mycoses, needs to be diagnosed rapidly and accurately. The main method used to diagnose histoplasmosis is serological detection of antibodies to the Histoplasma capsulatum H and M antigens. Several other protein antigens have been reported in H. capsulatum; however, they have not been used for diagnosis. In this study, we explored novel antigens that were detected during H. capsulatum infection. We obtained a protein mixture from H. capsulatum yeast cells after vigorous mixing in a 0.1% Triton X-100 solution. From the resultant pool, we detected nine spots that reacted with sera from patients with histoplasmosis and identified eight seroactive proteins with mass spectrometry. The seroactive proteins were purified, and their antigenicities were tested with an enzyme-linked immunosorbent assay (ELISA). ELISA revealed that the titer of the patients' sera to N-acetylated α-linked acidic dipeptidase was significantly higher than those of healthy volunteers (P < 0.01). These data indicate that N-acetylated α-linked acidic dipeptidase of H. capsulatum is recognized as a major antigen during histoplasmosis.
巻・号 458(3)
ページ 483-487
公開日 2015-3-13
DOI 10.1016/j.bbrc.2015.01.129
PII S0006-291X(15)00176-X
PMID 25680469
MeSH Acetylation Antigens, Fungal / blood Antigens, Fungal / immunology* Antigens, Fungal / isolation & purification Dipeptidases / blood Dipeptidases / immunology* Dipeptidases / isolation & purification Enzyme-Linked Immunosorbent Assay Histoplasma / enzymology* Histoplasma / immunology* Histoplasmosis / blood Histoplasmosis / immunology* Histoplasmosis / microbiology Humans
IF 2.985
引用数 3
WOS 分野 BIOPHYSICS BIOCHEMISTRY & MOLECULAR BIOLOGY
リソース情報
病原微生物
ラット