TGFBR1 and Bloom syndrome: The gene levels of TGFβ and its receptors (TGFB1, TGFB1I1, TGFBR1, and TGFBR2) showed upregulation in Air + BLM and ETS + BLM group compared to either Air + PBS or ETS + PBS groups, and there was no significant difference between Air + BLM and ETS + BLM groups (Figure S7).