Complement activation by sulfonated poly(ethylene glycol)-acrylate copolymers through alternative pathway

  • Hong Seok Jang
  • , Kyu Eun Ryu
  • , Woong Shick Ahn
  • , Heung Jae Chun
  • , Hyung Dal Park
  • , Ki Dong Park
  • , Young Ha Kim

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

Previously, novel poly(ethylene glycol) (PEG) and sulfonated PEG acrylate (PEG-SO3A/OA) copolymers were prepared as coating and/or blending materials for biomedical applications. Surfaces modified with copolymers exhibited increased anti-coagulation properties and decreased plasma adsorption level due to increased hydrophilic properties and reorientation characteristics of PEG/PEG-SO3A chains in water phase. As continuation study, anti-complement effects of PEG-SO3/OA copolymers were investigated in vitro, and compared with those of low-density polyethylene (LDPE) and PEG/OA. C3 activation by PEG-SO3/OA samples was lower than that by PEG/OA samples, which was attributed to decreased surface nucleophile level of samples. PEG-SO3/OA samples increased inhibition of Bb production, resulting in decreased C5 activation. Owing to reduced activations of C3 and C5, PEG-SO3/OA samples markedly decreased SC5b-9 levels in plasma.

Original languageEnglish
Pages (from-to)141-146
Number of pages6
JournalColloids and Surfaces B: Biointerfaces
Volume50
Issue number2
DOIs
StatePublished - 1 Jul 2006

Bibliographical note

Funding Information:
This study was supported by a grant (10012112), Components and Materials Technology Development Program from the Ministry of Commerce, Industry and Energy, Republic of Korea.

Keywords

  • Acrylate
  • Alternative pathway
  • Biomaterials
  • Copolymerization
  • Poly(ethylene glycol)
  • Sulfonation complement activation

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