This has been bothering me for years. The first cyberpunk I ever read. Main character was genetically modified with cat attributes, and ran with a small crew of other cat people (one was his surrogate son, the other his longtime teammate with panther genes). He was pulled into a scheme with an evil corporation hunting a cybernetic implant that would allow anyone photographic/recorded memory by using the code word "White Rabbit".
I remember there was an evil mayor character named Hatter who was spliced with a lion. At the end of the story the main character essentially took over for Hatter, and looked back on his life filled with regret (it was a downer).