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. 2003 Jul;133(1):11–19. doi: 10.1046/j.1365-2249.2003.02190.x

Fig. 2.

Fig. 2

Leptin receptor signalling via JAK–STAT pathways in PBMC. The leptin receptor is associated with JAKs. Upon leptin stimulation, JAK activity is increased and STAT-3 is tyrosine phosphorylated, dimerized and translocated to the nucleus to activate gene expression. STAT-3 is also associated with tyrosine phosphorylated Sam68 in response to leptin.