Abstract: Described are compositions and methods for preventing, treating or ameliorating an inflammation-mediated and/or complement-mediated disease or condition in a subject comprising administering to the subject a Fas inhibitor, its derivative, a pharmaceutically acceptable salt thereof, of a gene therapy encoding the Fas inhibitor in an amount effective to inhibit Fas signaling.

Abstract: Provided herein are compositions including peptides, pharmaceutical preparations thereof, and methods of preventing photoreceptor death therewith and protecting of retinal cells, including, but not limited to, photoreceptors and retinal pigment epithelium, from Fas- or TRAIL-mediated apoptosis. Also, described are compositions and methods for preventing, treating or ameliorating an inflammation-mediated and/or complement-mediated disease or condition in a subject comprising administering to the subject a Fas inhibitor, its derivative, a pharmaceutically acceptable salt thereof, of a gene therapy encoding the Fas inhibitor in an amount effective to inhibit Fas signaling.