The Expression of Matrix Metalloproteinases in Eyes with Intraocular Lymphoma.

Kanae Fukutsu, Satoru Kase, Daiju Iwata, Kayo Suzuki, Kenichi Namba, Susumu Ishida

Ocular immunology and inflammation 2022 Oct-Nov

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The purpose of this study is to investigate matrix metalloproteinases (MMPs) expression in human intraocular lymphoma (IOL). Two enucleated eyes and seven cell-block samples obtained from patients with IOL who underwent vitrectomy were used. Immunopathological examinations were performed for detection of MMP-2, MMP-9, and TIMP-4 expressions. In the enucleated eye with primary IOL (PIOL), MMP-2 was negative, and MMP-9 and TIMP-4 were positive in the lymphoma cells, while in the enucleated eye with secondary IOL (SIOL), all the molecules were positive. Among the cell-block samples with PIOL, the positive rate in lymphoma cells of MMP-2, MMP-9, and TIMP-4 was 75%, 100%, and 75%, respectively. In the cell-block samples with SIOL, the positive rates of MMP-2, MMP-9, and TIMP-4 were all 100%. MMP-2, MMP-9, and TIMP-4 were expressed in lymphoma cells using the specimens of human IOL, suggesting that MMPs may play an important role in the development of IOL.

Citation

Kanae Fukutsu, Satoru Kase, Daiju Iwata, Kayo Suzuki, Kenichi Namba, Susumu Ishida. The Expression of Matrix Metalloproteinases in Eyes with Intraocular Lymphoma. Ocular immunology and inflammation. 2022 Oct-Nov;30(7-8):1798-1802