Covalent attachment of an Arg-Gly-Asp sequece peptide to derivatizable polyacrylamide surfaces: Support of fibroblast adhesion and long-term growth

Brian K. Brandley, Ronald L. Schnaar

Research output: Contribution to journalArticlepeer-review

Abstract

A synthetic nonapeptide (Tyr-Ala-Val-Thr-Gly-Arg-Gly-Asp-Ser), which includes the adhesive Arg-Gly-Asp (RGD) sequence, was covalently immobilized on chemically well-defined polyacrylamide gel surfaces utilizing N-succinimidyl active esters. The amount of peptide immobilized varied linearly with the concentration added to the gels. Immobilization was ∼80% efficient (based on peptide added), resulting in up to 17.5 nmol peptide/cm2 gel surface. Balb/c 3T3 mouse fibroblast cells adhered readily to peptide-derivatized surfaces, even in the absence of serum. Furthermore, surfaces derivatized with 2 nmol peptide/cm2 gel supported long-term fibroblast growth at a rate and to an extent comparable to that on tissue culture plastic. Surfaces derivatized with a control nonapeptide having no RGD sequence were nonsupportive of cell attachment or growth. The immobilization technology used to derivatize the gel surfaces with adhesive nonapeptide can be modified to allow coderivatization with proteins, glycoproteins, glycosides, or other amine-containing compounds to test their effects on long-term cell behaviors.

Original languageEnglish (US)
Pages (from-to)270-278
Number of pages9
JournalAnalytical biochemistry
Volume172
Issue number1
DOIs
StatePublished - Jul 1988

Keywords

  • cell adhesion
  • cell culture techniques
  • fibronectin
  • immobilized peptides

ASJC Scopus subject areas

  • Biophysics
  • Biochemistry
  • Molecular Biology
  • Cell Biology

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