“…In some of these, lupus results from direct variation of TLR7 gene dose, or enhanced nucleic acid sensing function. These models include BXSB Yaa mice that harbour a chromosomal segment duplication from X onto Y that contains TLR7 ( Pisitkun et al, 2006 ; Soni et al, 2014 ) , Tlr7 transgenic (tg) mice ( Walsh et al, 2012 ), TLR7-agonist (imiquimod) induced lupus ( Hirobe et al, 2022 ; Voss et al, 2022 ), and kika mice that carry a TLR7 gain-of-function variant found in a girl with SLE ( Brown et al, 2022 ). In another group of lupus models in which Tlr7 gene expression is intact, disease pathogenesis is also dependent on TLR7 signaling.…”