Biomaterial Database

Indirect immunofluorescent detection of antibodies against thermophilic actinomycetes in patients with hypersensitivity pneumonitis. 1977

V P Kurup, and J J Barboriak, and J N Fink

With slide culture preparations of Micropolyspora faeni, Thermoactinomyces candidus, and Thermoactinomyces vulgaris used as antigens, 59 sera from patients with hypersensitivity pneumonitis and 23 sera from normal controls were studied for the presence of specific antibodies by indirect immunofluorescence and immunodiffusion methods. Of the 82 sera, 31 showed precipitins to M. faeni, five to T. candidus, and four to T. vulgaris. A group of 19 sera positive to Aspergillus antigens showed questionable reactions to thermophilic actinomycetes. The 23 sera from normal individuals were negative for specific antibodies when tested by immunodiffusion. In indirect immunofluorescence studies, we found that IgG antibodies in high titers are present only in the precipitin-positive sera whereas other antibody classes either are negative or failed to show consistent differences in titers of the positive, questionable, and control groups. The titer of IgG antibodies varied from 0 to 1:20 in the normal control group, 0 to 1:40 to 1:640 in the precipitin-positive group.

UI	MeSH Term	Description	Entries
D007074	Immunoglobulin G	The major immunoglobulin isotype class in normal human serum. There are several isotype subclasses of IgG, for example, IgG1, IgG2A, and IgG2B.	Gamma Globulin, 7S,IgG,IgG Antibody,Allerglobuline,IgG(T),IgG1,IgG2,IgG2A,IgG2B,IgG3,IgG4,Immunoglobulin GT,Polyglobin,7S Gamma Globulin,Antibody, IgG,GT, Immunoglobulin
D007136	Immunoglobulins	Multi-subunit proteins which function in IMMUNITY. They are produced by B LYMPHOCYTES from the IMMUNOGLOBULIN GENES. They are comprised of two heavy (IMMUNOGLOBULIN HEAVY CHAINS) and two light chains (IMMUNOGLOBULIN LIGHT CHAINS) with additional ancillary polypeptide chains depending on their isoforms. The variety of isoforms include monomeric or polymeric forms, and transmembrane forms (B-CELL ANTIGEN RECEPTORS) or secreted forms (ANTIBODIES). They are divided by the amino acid sequence of their heavy chains into five classes (IMMUNOGLOBULIN A; IMMUNOGLOBULIN D; IMMUNOGLOBULIN E; IMMUNOGLOBULIN G; IMMUNOGLOBULIN M) and various subclasses.	Globulins, Immune,Immune Globulin,Immune Globulins,Immunoglobulin,Globulin, Immune
D008848	Micromonosporaceae	A family of gram-positive, saprophytic bacteria occurring in soil and aquatic environments.
D005455	Fluorescent Antibody Technique	Test for tissue antigen using either a direct method, by conjugation of antibody with fluorescent dye (FLUORESCENT ANTIBODY TECHNIQUE, DIRECT) or an indirect method, by formation of antigen-antibody complex which is then labeled with fluorescein-conjugated anti-immunoglobulin antibody (FLUORESCENT ANTIBODY TECHNIQUE, INDIRECT). The tissue is then examined by fluorescence microscopy.	Antinuclear Antibody Test, Fluorescent,Coon's Technique,Fluorescent Antinuclear Antibody Test,Fluorescent Protein Tracing,Immunofluorescence Technique,Coon's Technic,Fluorescent Antibody Technic,Immunofluorescence,Immunofluorescence Technic,Antibody Technic, Fluorescent,Antibody Technics, Fluorescent,Antibody Technique, Fluorescent,Antibody Techniques, Fluorescent,Coon Technic,Coon Technique,Coons Technic,Coons Technique,Fluorescent Antibody Technics,Fluorescent Antibody Techniques,Fluorescent Protein Tracings,Immunofluorescence Technics,Immunofluorescence Techniques,Protein Tracing, Fluorescent,Protein Tracings, Fluorescent,Technic, Coon's,Technic, Fluorescent Antibody,Technic, Immunofluorescence,Technics, Fluorescent Antibody,Technics, Immunofluorescence,Technique, Coon's,Technique, Fluorescent Antibody,Technique, Immunofluorescence,Techniques, Fluorescent Antibody,Techniques, Immunofluorescence,Tracing, Fluorescent Protein,Tracings, Fluorescent Protein
D005779	Immunodiffusion	Technique involving the diffusion of antigen or antibody through a semisolid medium, usually agar or agarose gel, with the result being a precipitin reaction.	Gel Diffusion Tests,Diffusion Test, Gel,Diffusion Tests, Gel,Gel Diffusion Test,Immunodiffusions,Test, Gel Diffusion,Tests, Gel Diffusion
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000542	Alveolitis, Extrinsic Allergic	A common interstitial lung disease caused by hypersensitivity reactions of PULMONARY ALVEOLI after inhalation of and sensitization to environmental antigens of microbial, animal, or chemical sources. The disease is characterized by lymphocytic alveolitis and granulomatous pneumonitis.	Allergic Alveolitis, Extrinsic,Hypersensitivity Pneumonitis,Pneumonitis, Hypersensitivity,Allergic Alveolitides, Extrinsic,Alveolitides, Extrinsic Allergic,Extrinsic Allergic Alveolitides,Extrinsic Allergic Alveolitis,Hypersensitivity Pneumonitides,Pneumonitides, Hypersensitivity
D000907	Antibodies, Bacterial	Immunoglobulins produced in a response to BACTERIAL ANTIGENS.	Bacterial Antibodies