Diagnostic methods for E. histolytica

Chemistry: molecular biology and microbiology – Measuring or testing process involving enzymes or... – Involving antigen-antibody binding – specific binding protein...

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435961, 436518, 530396, 530413, G01N 33569, C07K 122, C07K 1444

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active

054057485

ABSTRACT:
A simple immunoassay method is provided which distinguishes pathogenic from nonpathogenic forms Entamoeba histolytica in biological samples. This assay utilizes monoclonal antibody preparations which are specific for designated epitopes of the 170 kd subunit of the Gal/GalNAc lectin. When pathogenic forms, specifically, are to be detected, at least one antibody which is immunospecific for an epitope unique to the forms of the 170 kd lectin found in pathogenic strains is used in the assay. The invention further includes monoclonal antibodies which are immunospecific for epitopes 1-3 of the 170 kd subunit of the Gal/GalNAc lectin of either pathogenic or nonpathogenic forms and to monoclonal antibodies specifically immunoreactive with epitopes unique to nonpathogenic derived 170 kd subunit, as well as purified forms of the Gal/GalNAc lectin from both pathogenic and nonpathogenic forms.

REFERENCES:
patent: 5004608 (1991-04-01), Ravdin et al.
patent: 5272058 (1993-12-01), Petri et al.
Petri et al, "Isolation of the Galactose-binding Lectin that Mediates in In Vitro Adherence of Entamoeba histolytica", J. Clin. Invest., 80:1238-1244 (Nov. 1987).
Ravdin et al (1986) "Production of Mouse Monoclonal Antibodies . . . " Infect. & Immun. 53:1-5.
Petri et al (1987) "Recognition of the Galactose . . . " Infect. & Immun. 55:2327-2331.
Ravdin et al (1988) "Relationship of free intracells in . . ." Infect. & Immun. 56:1505-1512.
Petri et al (1990) "Pathogenic & Nonpathogenic . . . " Infect. & Immun. 58:1802-1806.
Mirelman, D., et al., Changes in Isoenzyme Patterns of a Cloned Culture of Nonpathogenic Entamoeba histolytica during Axenization; Infect. Immun. (1986) 54:827-832.
Petri, et al., Subunit Structure of the Galactose and N-Acetyl-D-galactosamine-inhibitable Adherence Lectin of Entamoeba histolytica; J. Biol. Chem. (1989) 264:3007-3012.
Petri, et al., Antigenic Stability and Immunodominance of the Gal/GalNAc Adherence Lectin of Entamoeba Histolytica; Am. J. Med. Sci. (1989) 296:163-165.
Root, et al., Arch. Invest. Med (Mex) (1978) 9:Supplement 1:203-210.
Palacios et al., Arch. Invest. Med. (Mex) (1978) 9:Supplement 1:339-348.
Randall, et al., Use of the enzyme-linked immunosorbent assay (ELISA) for detection of Entamoeba histolytica antigen in faecal samples; Trans. Roy. Soc. Trop. Med. Hyg. (1984) 78:593.
Grundy, Preliminary observations using a multi-layer ELISA method for the detection of Entamoeba histolytica trophozoite antigens in stool samples; Trans. Roy. Soc. Trop. Med. Hyg. (1982) 76:396.
Ungar, Use of a monoclonal antibody in an aenzyme immunoassay for the detection of entamoeba histolytica in fecal specimens; Am. J. Trop. Med. Hyg. (1985) 34:465.
Ravdin, ELISA--Nonmorphologic Diagnosis; Wiley Medical Publishing (1988) 646-648; Amebiasis: Human Infection by Entamoeba Histolytica.
Garfinkel, et al., DNA Probes specific for Entamoeba histolytica possessing pathogenic and nonpathogenic zymodemes; Infect. Immun. (1989) 57:926-931.
Tannich, et al., Genomic DNA differences between pathogenic and nonpathogenic Entamoeba histolytica; Proc. Natl. Acad. Sci. (1989) 86:5118-5122.
Strachan et al., Lancet (1988) 561-562.

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