The transcription factor NF-kappaB and the signaling pathways regulating its activity constitute a paradigm of membrane to nucleus communication. NF-kappaB is central to a number of cellular functions including cell proliferation, apoptosis, and cellular differentiation. This transcription factor also plays essential roles in innate and acquired immunity, and its deregulation leads to important human diseases such as inflammation and cancer. Therefore NF-kappaB, together with the signaling pathways leading to its activation, constitute an attractive therapeutic target. This book is the first...