Figure 3. UCP1+ cells are an important source of newly generated beige adipocytes in response to β3 agonist.
(A) UCP1-DTA (Ucp1-CreERT2; Rosa26RRFP; DTAfl/fl) mouse model.
(B) Experimental procedure. TM-induced 2-month-old UCP1-DTA male mice were treated with vehicle or CL316,243 (β3 agonist) for 7 days before terminal analyses (n=5 mice per group).
(C) Representative H&E staining on IGW sections of mice described in (A). IGW depots were shown at 3 locations: upper, middle, and lower. L: lymph node. Scale = 100 μm.
(D) Representative fluorescence imaging of UCP1 (green) on IGW sections. Scale = 100 μm.
(E) UCP1-PPARγ (Ucp1-CreERT2; PPARγfl/fl) mouse model.
(F) Experimental procedure. TM-induced 2-month-old UCP1-PPARγ male mice were treated with CL316,243 (β3 agonist) for 7 days before terminal analyses (n=5 mice per group).
(G) Representative H&E staining on IGW sections of mice described in (E). Scale = 100 μm.
(H) Representative fluorescence imaging of UCP1 (green) immunostaining on IGW sections. DAPI (blue) stained the nuclei. Scale = 100 μm.