Issue 16, 2009

Site-specific N-terminus conjugation of poly(mPEG1100) methacrylates to salmon calcitonin: synthesis and preliminary biological evaluation

Abstract

Recent advances in polymerization strategies have led to the development of novel polymer–(poly)peptide biohybrid materials with potential application in the field of macromolecular therapeutics. In this current work, comb-shaped α-aldehyde poly(monomethoxy polyethylene glycol)methacrylates (p(mPEG)MA) with molecular masses in the 6.5–109 kDa range were prepared and conjugated, via reductive amination, to the Cys1N-terminus of salmon calcitonin (sCT), a calcitropic hormone currently administered for the treatment of a number of hypercalcaemia-related diseases. The conjugation site was determined by tryptic digestion of the sCT–p(mPEG1100)MA biohybrids in conjunction with LC-MS MALDI-TOF spectrometry. Preliminary in vitro biological tests show that the polymer conjugation does not interfere with the biological activity of the sCT.

Graphical abstract: Site-specific N-terminus conjugation of poly(mPEG1100) methacrylates to salmon calcitonin: synthesis and preliminary biological evaluation

Supplementary files

Article information

Article type
Paper
Submitted
16 Mar 2009
Accepted
22 May 2009
First published
01 Jul 2009

Soft Matter, 2009,5, 3038-3046

Site-specific N-terminus conjugation of poly(mPEG1100) methacrylates to salmon calcitonin: synthesis and preliminary biological evaluation

C. T. Sayers, G. Mantovani, S. M. Ryan, R. K. Randev, O. Keiper, O. I. Leszczyszyn, C. Blindauer, D. J. Brayden and D. M. Haddleton, Soft Matter, 2009, 5, 3038 DOI: 10.1039/B905335B

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