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Expression of β Defensins in Ocular Surface Tissue of Experimentally Developed Allergic Conjunctivitis Mouse Model

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Abstract

Purpose

To investigate the expression of β-defensin in the ocular surface of a mouse experimental allergic conjunctivitis (EAC) model.

Methods

Mouse β-defensin (mBD)-1 and -2 mRNA expressed in conjunctival tissue of both the EAC and the control group were analyzed by real-time reverse transcriptase-polymerase chain reaction (RT-PCR) analysis. mBD-1 and mBD-2 mRNA expressed in cornea, limbus, and conjunctival epithelium of the EAC and the control group were also analyzed using a laser-assisted microdissection technique and the RT-PCR method.

Results

There was no significant difference in the amount of mBD-1 between the EAC and the control group. However, the EAC group had significantly less mBD-2 (0.23 ± 0.15 × 104 copy/µl) than the control group (3.61 ± 4.87 × 104 copy/µl) (P < 0.01, Mann-Whitney U test). mBD-1 mRNA was positive for all examined tissue in both groups. The expression of mBD-2 mRNA in the EAC group was definitely positive for the corneal and conjunctival epithelium and negative for the limbus.

Conclusion

mBD-2 mRNA was expressed significantly less in the EAC model than in the control. Analysis by site in the ocular surface tissue revealed that this reduction was caused by the diminished expression of mBD-2 in the limbus. Jpn J Ophthalmol 2006;50:1–6 © Japanese Ophthalmological Society 2006

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Authors and Affiliations

  1. Department of Ophthalmology, Nihon University School of Medicine, Tokyo, Japan

    Ai Ikeda, Tohru Sakimoto, Jun Shoji & Mitsuru Sawa

  2. Department of Pathology, Nihon University School of Medicine, Tokyo, Japan

    Yoko Nakanishi & Norimichi Nemoto

Authors
  1. Ai Ikeda
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  2. Yoko Nakanishi
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  3. Tohru Sakimoto
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  4. Jun Shoji
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  5. Mitsuru Sawa
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  6. Norimichi Nemoto
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Correspondence to Ai Ikeda.

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Ikeda, A., Nakanishi, Y., Sakimoto, T. et al. Expression of β Defensins in Ocular Surface Tissue of Experimentally Developed Allergic Conjunctivitis Mouse Model. Jpn J Ophthalmol 50, 1–6 (2006). https://doi.org/10.1007/s10384-005-0262-4

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  • DOI: https://doi.org/10.1007/s10384-005-0262-4

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