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Methods: Chemical burning of the ocular surface was induced in mice (C57BL/6) via the application of 0.1 M NaOH. Macrophage migration inhibitory factor (MIF ), tumor necrosis factor-α (TNF-α ), and interleukin-1β (IL-1β ) mRNA expression in the ocular surface and lacrimal gland was evaluated via real-time reverse transcription PCR on days 2, 7, and 30 after induction of the chemical burn. The expression of MIF protein in the ocular surface and lacrimal gland was evaluated via western blot analysis. Immunohistochemical staining was conducted to detect MIF and vasculoendothelial growth factor in the cornea during the wound healing process. The angiogenic role of MIF was further evaluated using an 8–0 polyglactin suture technique to induce corneal neovascularization.
Results: MIF , TNF-α , and IL-1β mRNA expression were elevated significantly in the ocular surface up to day 30 after chemical burn induction. TNF-α alone was elevated in the lacrimal gland. MIF protein elevation was confirmed via western blot analysis, and the spatial similarity of MIF and VEGF expression in the cornea was noted during the wound healing process. 8–0 polyglactin sutures soaked in MIF induced significantly higher numbers of new vessels on the mouse cornea after 7 days (p=0.003, Mann–Whitney test).
Conclusions: These findings indicate that MIF performs a crucial role in wound healing on the ocular surface after the induction of chemical burns.
Pathogen and Cancer Biomarker Genotyping : Gene-Analysis Studies Advanced by Use of Low-Volume High-Throughput Real-Time PCR
Genet Eng Biotechn N, 32, 18, 20-20
Nucleic Acid Res, 29, 9, e45