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IHC of explants from the femoral condyle. Antilubricin shows expression of the protein predominantly in the superficial zone of cartilage in the positive control (1 day at 37°C). No lubricin is detected in nonarticulating costal cartilage surfaces (negative control). Even after a month of storage, the surface layer of lubricin is unaffected by temperature, however, cellular expression of lubricin is only maintained at 37°C. Color images are available online.
