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Tethered epidermal growth factor as a paradigm for growth factor–induced stimulation from the solid phase

Nature Medicine volume 2, pages 1022–1027 (1996)Cite this article

Abstract

We have tethered epidermal growth factor (EGF) to a solid substrate in a manner permitting the factor to retain its biological activity as assessed by both mitogenic and morphological assays. Mouse EGF was covalently coupled to aminosilane–modified glass via star poly(ethylene oxide) (PEO), which allows the ligand to retain significant mobility and active conformation. Tethered EGF was as effective as soluble EGF in eliciting DNA synthesis and cell rounding responses of primary rat hepatocytes under different surface conditions. In contrast, physically adsorbed EGF at comparable surface concentrations showed no activity. Presentation of growth factors in this manner may help to expedite their clinical use by permitting greater control of temporal and spatial availability in the extracellular environment.

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Authors and Affiliations

  1. Department of Chemical Engineering and Center for Biomedical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, 02139, USA

    Philip R. Kuhl & Linda G Griffith-Cima

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  1. Philip R. Kuhl
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  2. Linda G Griffith-Cima
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Kuhl, P., Griffith-Cima, L. Tethered epidermal growth factor as a paradigm for growth factor–induced stimulation from the solid phase. Nat Med 2, 1022–1027 (1996). https://doi.org/10.1038/nm0996-1022

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