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PubMed · 16902992

A mouse strain difference in tumorigenesis induced by biodegradable polymers.

Saifuddin Ahmed·Toshie Tsuchiya
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Abstract

The use of poly-L-lactic acid (PLLA) surgical implants for repair of bone fractures has gained popularity in the past decade. The aim of this study was to evaluate the in vivo effect of PLLA plates on subcutaneous tissue in two mouse strains, BALB/cJ and SJL/J, which have higher and lower tumorigenicity, respectively. Gap-junctional intercellular communication and protein expression of connexin 43 were significantly suppressed, whereas secretion of transforming growth factor-beta1 and expression of extracellular matrix, insulin-like growth factor binding protein 3, and cysteine-rich intestinal protein 2 were significantly increased in PLLA-implanted BALB/cJ mice when compared with BALB/cJ controls. Finally, tumors were formed after implantation of cultured cells from the more-tumorigenic BALB/cJ, but not SJL/J, mice into nude mice.

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AnimalsBiocompatible MaterialsConnexin 43FemaleGap JunctionsGlycolatesLactic AcidMaleMiceMice, Inbred BALB CMice, NudeNeoplasm TransplantationOligonucleotide Array Sequence AnalysisPolyglycolic AcidPolylactic Acid-Polyglycolic Acid CopolymerPolymersSpecies SpecificityTransforming Growth Factor beta1Journal ArticleResearch Support, Non-U.S. Gov't

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Saifuddin Ahmed, Toshie Tsuchiya. 2006. A mouse strain difference in tumorigenesis induced by biodegradable polymers.. https://doi.org/10.1002/jbm.a.30753

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