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Modulating fibroblast cell proliferation with functionalized poly(methyl methacrylate) based copolymers: chemical
Fatima El Khadali1, Gérard Hélary, Graciela Pavon-Djavid
1Laboratoire de Recherches sur les Macromolécules, CNRS-FRE 2314, Institut Galilée, Université Paris 13, Avenue J. B. Clément, 93430 Villetaneuse, France.
Biomacromolecules
|February 28, 2002
Summary
New poly(methyl methacrylate)-based terpolymers with sulfonate and carboxylate groups modulate fibroblast cell proliferation. Optimal ionic group ratios inhibit cell growth without causing toxicity, suggesting potential for biocompatible intraocular lenses and preventing secondary cataracts.
Area of Science:
- Polymer Chemistry
- Biomaterials Science
- Cell Biology
Background:
- Poly(methyl methacrylate) (PMMA) is a common biomaterial.
- Functionalizing PMMA with ionic groups can alter its biological interactions.
- Understanding cell response to functionalized polymers is crucial for developing advanced medical devices.
Purpose of the Study:
- To synthesize and characterize novel PMMA-based terpolymers with varying sulfonate and carboxylate group compositions.
- To investigate the effect of these terpolymers on fibroblast cell proliferation kinetics.
- To evaluate the cytostatic versus cytotoxic potential of the synthesized materials.
Main Methods:
- Radical copolymerization was employed to synthesize PMMA-based terpolymers.
- Fibroblast cells were cultured on terpolymers with controlled molar compositions of ionic groups.
- Cell proliferation was monitored and compared to a non-functionalized PMMA control.
Main Results:
- A maximum inhibition of cell proliferation was observed at approximately 15% ionic content, with a specific ratio of carboxylate to sulfonate groups (R ≈ 0.55).
- Cell proliferation modulation was dependent on the specific composition of ionic groups, not solely on overall hydrophilicity.
- Synthesized terpolymers demonstrated cytostatic properties, inhibiting cell growth without inducing cell death.
Conclusions:
- PMMA-based terpolymers with specific ionic group compositions can effectively modulate fibroblast proliferation.
- These materials exhibit cytostatic effects, making them promising candidates for biocompatible applications.
- Potential applications include the fabrication of intraocular lenses to prevent secondary cataract formation.