Figure 5. Male MafAS64F/+ islets display increased expression of aging, DDR, SASP, and cytokine pathway gene signatures.
(A) KEGG analysis of the 1,842 genes specifically upregulated in 5-week-old male MafAS64F/+ (Het) islets.
(B–E) Heatmaps reveal male MafAS64F/+ islets have increased expression of pathway genes associated with (B) aging, (C) DDR, (D) SASP, and (E) cytokine-cytokine receptor interactions. FDR < 0.05.
(F) qRT-PCR confirmation of pathway gene changes in 5-week-old male MafAS64F/+ islets (solid bars). Gene expression was unchanged at 4-week-old male MafAS64F/+ islets, with the exception of Cdkn1a (p21) upregulation (hash-marked bars). Two-tailed Student t test; *p < 0.05; **p < 0.01.