CCL28 and retinitis pigmentosa 1: These findings are in accordance with previously published data, which describe upregulation of factors like Lif, Ccl2 (Mcp-1), Ccl28, interleukin-1 (Il-1), complement component 1q (C1q), and complement factor H (CFH) in retinae of genetic mouse models of RP [11,28,29,30,31,32,33].