Seprafilm Mediated Immune Response Mimic Danger Signal: A Pilot Studyin Ovarian Cancer Cases

Danger signal was first proposed in 1994. In response to danger signal, dendritic cells, as the director of the T-cell immune system, would be matured and further enhance T-cell response. Hyaluronan had been reported as one of endogenous danger signals. Because of Seprafilm (most used for preventing post-operation adhesion) is also an hyaluronate-based agent, so we choose Seprafilm as our “candidate” of emerging danger signal to increasing T-cell response. We perform a pilot study in 10 ovarian cancer patients to compare the immune risk profiles between cases using Seprafilm (5 cases) and not using Seprafilm (5 cases). We found that there is no statistical difference on the immune risk profiles between two groups. However, a trend of increased CD4 in Seprafilm group was noted, indicating that Seprafilm might be an optional agent mimic danger signal. The potential value of Seprafilm to augment host immunosurveillance to improve survival rate in cancer patients is unknown, further study is needed to clarify the possibility of clinical applications.