Tomohiro Koga, Masataka Umeda, Nobuya Yoshida, Abhigyan Satyam, Meenakshi Jha, Marc Scherlinger, Rhea Bhargava, Maria G Tsokos, Tomohito Sato, Kaori Furukawa, Yushiro Endo, Shoichi Fukui, Naoki Iwamoto, Norio Abiru, Minoru Okita, Masako Ito, Atsushi Kawakami, George C Tsokos
OBJECTIVE: To investigate the role of calcium/calmodulin-dependent protein kinase IV (CaMK4) in the development of joint injury in a mouse model of arthritis and patients with rheumatoid arthritis (RA). METHODS: Camk4-deficient, Camk4flox/floxLck-Cre, and mice treated with CaMK4 inhibitor KN-93 or KN-93 encapsulated in nanoparticles tagged with CD4 or CD8 antibodies were subjected to collagen-induced arthritis (CIA). Inflammatory cytokine levels, humoral immune response, synovitis, and T cell activation were recorded...
July 4, 2022: Rheumatology