ISSN:
0730-2312
Keywords:
EGF derivative
;
EGF receptor
;
cytochemical detection
;
clinical oncology
;
tumor marker
;
Life and Medical Sciences
;
Cell & Developmental Biology
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
Notes:
A biotinylated derivative of murine epidermal growth factor (EGF) was prepared by covalent attachment of the terminal amino group of EGF to N-biotinyl-ε-aminocaproyl-N-hydroxysuccinimide. The stoichiometry of biotin incorporation was in the range of one biotin moiety per EGF molecule. The biotinylated EGF (biotinyl-ε-caproyl-EGF, BioEGF) binds to EGF receptors on intact Ehrlich ascites carcinoma (EAC) cells with an affinity similar to that of native EGF and displays the same mitogenic activity as EGF in a soft agar test system with normal rat kidney (NRK) cells. BioEGF was visualized on cultured cells and tissue sections of a head and neck tumour by commercial streptavidin/avidin detection systems. Cytochemical analyses of certain tumour forms can be easily performed using the BioEGF probe.
Additional Material:
6 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/jcb.240410202
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