Hyaluronan production and hyaluronan synthase expression in three human conjunctiva-derived cell strains
| Autor: | Teiko Yamamoto, Hiroshi Takamura, Yoshiko Kashiwagi, Koichi Nishitsuka, Hidetoshi Yamashita |
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| Rok vydání: | 2011 |
| Předmět: |
Male
Adolescent Cell Survival medicine.medical_treatment Cell Becaplermin Biology Transfection Gene Expression Regulation Enzymologic Cell Line Transforming Growth Factor beta1 Gene expression medicine Humans RNA Messenger Glucuronosyltransferase Hyaluronic Acid Aged Regulation of gene expression Reverse Transcriptase Polymerase Chain Reaction Proto-Oncogene Proteins c-sis General Medicine Virology Molecular biology eye diseases Ophthalmology Hyaluronan synthase medicine.anatomical_structure Cytokine Cell culture biology.protein sense organs Conjunctiva Hyaluronan Synthases Immortalised cell line |
| Zdroj: | Japanese Journal of Ophthalmology. 55:660-669 |
| ISSN: | 1613-2246 0021-5155 |
| DOI: | 10.1007/s10384-011-0072-9 |
| Popis: | The conjunctiva maintains the health of the ocular surface by protecting the eye from pathogen invasion, injury, and dryness. In this study, we investigated the regulation of hyaluronan (HA) synthesis by cytokines in conjunctiva-derived cells. Cultured primary cells derived from human conjunctivas that had been removed as surgical specimens were transfected with an immortalizing gene (human papilloma virus 16 E6/E7). To compare the biological features of the primary and immortalized cells, we assessed their morphological features and gene expression patterns. We also examined the effects of inflammatory cytokines on hyaluronan synthase (HAS) expression and HA production. Three conjunctiva-derived cell strains were established and could be passaged up to 15 times. All strains expressed β2MG and KRT13 transcripts, highly expressed in conjunctival epithelial cells. HA production and expression of the three HAS isoforms were detected in the cell strains; however, cytokine treatment had no significant effect on HA production or HAS isoform expression. We succeeded in deriving three human cell strains from conjunctival tissue. In the conjunctiva-derived cell strains, HA production and HAS mRNA expression were stable and were not changed by either TGF-β or PDGF-BB. |
| Databáze: | OpenAIRE |
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