A hydrogel prepared by in situ cross-linking of a thiol-containing poly(ethylene glycol)-based copolymer: A new biomaterial for protein drug delivery

Bo Qiu; Simon Stefanos; Jianglin Ma; Anita Lalloo; Barbara A. Perry; Michael J Leibowitz; Patrick J. Sinko; Stanley Stein

doi:10.1016/S0142-9612(02)00227-2

A hydrogel prepared by in situ cross-linking of a thiol-containing poly(ethylene glycol)-based copolymer: A new biomaterial for protein drug delivery

Bo Qiu, Simon Stefanos, Jianglin Ma, Anita Lalloo, Barbara A. Perry, Michael J Leibowitz, Patrick J. Sinko, Stanley Stein

Research output: Contribution to journal › Article › peer-review

113 Scopus citations

Abstract

A new poly(ethylene glycol)-based copolymer containing multiple thiol (-SH) groups was cross-linked in situ to form a polymer hydrogel under mild conditions. No organic solvent, elevated temperature, or harsh pH is required in the formulation or patient administration processes, making it particularly useful for delivery of fragile therapeutics, such as proteins. The in vitro release of fluorescein-labeled bovine serum albumin and the in vivo release of the model proteins, erythropoietin, RANTES and three PEG-conjugated RANTES derivatives showed sustained release for 2-4 weeks and demonstrated prolonged biological activity of the released proteins in animals.

Original language	English (US)
Pages (from-to)	11-18
Number of pages	8
Journal	Biomaterials
Volume	24
Issue number	1
DOIs	https://doi.org/10.1016/S0142-9612(02)00227-2
State	Published - Jan 2003
Externally published	Yes

Keywords

Hydrogel
In situ cross-linking
Poly(ethylene glycol)
Protein drug delivery
Thiol-containing copolymer

ASJC Scopus subject areas

Biotechnology
Bioengineering
Biomedical Engineering

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10.1016/S0142-9612(02)00227-2

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A hydrogel prepared by in situ cross-linking of a thiol-containing poly(ethylene glycol)-based copolymer : A new biomaterial for protein drug delivery. / Qiu, Bo; Stefanos, Simon; Ma, Jianglin; Lalloo, Anita; Perry, Barbara A.; Leibowitz, Michael J; Sinko, Patrick J.; Stein, Stanley.

In: Biomaterials, Vol. 24, No. 1, 01.2003, p. 11-18.

Research output: Contribution to journal › Article › peer-review

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