Immunoreactive human epidermal growth factor in human pancreatic juice. 1982

Y Hirata, and M Uchihashi, and M Nakajima, and T Fujita, and S Matsukura

Human epidermal growth factor (hEGF), which stimulates the growth of a variety of cells in culture, has recently been isolated from human urine. In the present study, we identified significant amounts of immunoreactive (IR) hEGF (mean +/- SE, 2.3 +/- 0.09 ng/ml; n = 3) in human pancreatic juice. The IR-hEGF materials were immunologically indistinguishable from standard hEGF, although they were only 5% as active in receptor binding to human placental membrane as in RIA. Gel exclusion chromatography of the pancreatic juice under neutral and acidic conditions revealed three distinct IR-hEGF components with different molecular sizes. Incubation of 125I-labeled hEGF with either the pancreatic juice or the high molecular weight component(s) yielded no aggregation or degradation products. These data suggest that fully immunoreactive but much less bioactive hEGF-like substances which are heterogeneous in size are secreted into human pancreatic juice. Their tissue(s) of origin and physiological functions, if any, remain to be elucidated.

UI MeSH Term Description Entries
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D010189 Pancreatic Juice The fluid containing digestive enzymes secreted by the pancreas in response to food in the duodenum. Juice, Pancreatic,Juices, Pancreatic,Pancreatic Juices
D011863 Radioimmunoassay Classic quantitative assay for detection of antigen-antibody reactions using a radioactively labeled substance (radioligand) either directly or indirectly to measure the binding of the unlabeled substance to a specific antibody or other receptor system. Non-immunogenic substances (e.g., haptens) can be measured if coupled to larger carrier proteins (e.g., bovine gamma-globulin or human serum albumin) capable of inducing antibody formation. Radioimmunoassays
D011869 Radioligand Assay Quantitative determination of receptor (binding) proteins in body fluids or tissue using radioactively labeled binding reagents (e.g., antibodies, intracellular receptors, plasma binders). Protein-Binding Radioassay,Radioreceptor Assay,Assay, Radioligand,Assay, Radioreceptor,Assays, Radioligand,Assays, Radioreceptor,Protein Binding Radioassay,Protein-Binding Radioassays,Radioassay, Protein-Binding,Radioassays, Protein-Binding,Radioligand Assays,Radioreceptor Assays
D002850 Chromatography, Gel Chromatography on non-ionic gels without regard to the mechanism of solute discrimination. Chromatography, Exclusion,Chromatography, Gel Permeation,Chromatography, Molecular Sieve,Gel Filtration,Gel Filtration Chromatography,Chromatography, Size Exclusion,Exclusion Chromatography,Gel Chromatography,Gel Permeation Chromatography,Molecular Sieve Chromatography,Chromatography, Gel Filtration,Exclusion Chromatography, Size,Filtration Chromatography, Gel,Filtration, Gel,Sieve Chromatography, Molecular,Size Exclusion Chromatography
D004815 Epidermal Growth Factor A 6-kDa polypeptide growth factor initially discovered in mouse submaxillary glands. Human epidermal growth factor was originally isolated from urine based on its ability to inhibit gastric secretion and called urogastrone. Epidermal growth factor exerts a wide variety of biological effects including the promotion of proliferation and differentiation of mesenchymal and EPITHELIAL CELLS. It is synthesized as a transmembrane protein which can be cleaved to release a soluble active form. EGF,Epidermal Growth Factor-Urogastrone,Urogastrone,Human Urinary Gastric Inhibitor,beta-Urogastrone,Growth Factor, Epidermal,Growth Factor-Urogastrone, Epidermal,beta Urogastrone
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults

Related Publications

Y Hirata, and M Uchihashi, and M Nakajima, and T Fujita, and S Matsukura
June 1989, The Journal of clinical endocrinology and metabolism,
Y Hirata, and M Uchihashi, and M Nakajima, and T Fujita, and S Matsukura
January 1978, The Mount Sinai journal of medicine, New York,
Y Hirata, and M Uchihashi, and M Nakajima, and T Fujita, and S Matsukura
April 1990, The American journal of gastroenterology,
Y Hirata, and M Uchihashi, and M Nakajima, and T Fujita, and S Matsukura
March 1980, The Journal of clinical endocrinology and metabolism,
Y Hirata, and M Uchihashi, and M Nakajima, and T Fujita, and S Matsukura
January 1988, The journal of histochemistry and cytochemistry : official journal of the Histochemistry Society,
Y Hirata, and M Uchihashi, and M Nakajima, and T Fujita, and S Matsukura
April 1991, Clinical biochemistry,
Y Hirata, and M Uchihashi, and M Nakajima, and T Fujita, and S Matsukura
April 1996, Gut,
Y Hirata, and M Uchihashi, and M Nakajima, and T Fujita, and S Matsukura
February 1991, The Journal of pathology,
Y Hirata, and M Uchihashi, and M Nakajima, and T Fujita, and S Matsukura
January 1992, The Journal of pathology,
Copied contents to your clipboard!