Prdm1fl/flFoxP3YFP-Cre(FoxP3Cre),
Rosa26Cre-ERT2 (iCre+),
Bol6fl/fl,
Stat3fl/fl,
Tcrα−/−(Jackson
Labs),
Rag2−/−,
B6SJL (CD45.1) (Taconic Farms), and B6.FoxP3-GFP reporter mice were housed
in pathogen-free conditions. Prdm1fl/fl mice
were bred onto FoxP3Cre or
Rosa26Cre-ERT2 (iCre+) mice to
generate
Prdm1fl/flFoxP3Cre,
Prdm1fl/+FoxP3Cre,
or
Prdm1fl/flRosa26Cre-ERT2(Prdm1fl/fliCre+)
mice, respectively. Bol6fl/fl mice were bred
onto FoxP3Cre to generate
Bol6fl/flFoxP3Cremice that were further crossed onto
Prdm1fl/flFoxP3Creto yield
Bol6fl/flPrdm1fl/flFoxP3Cremice. Sfaf3fl/fl mice were crossed onto
Prdm1fl/flFoxP3Creto yield
Stat3fl/+Prdm1fl/flFoxP3Creor
Stat3fl/flPrdm1fl/flFoxP3Cremice. All mice were used at the age of 6 to 9 weeks unless otherwise
specified. Both sexes (males or females) were randomly included for all
experiments in an unblinded fashion. Generally between 3 to 7 mice were used
per group, as indicated in each experiment. All experiments were performed
in compliance with federal laws and institutional guidelines as approved by
DFCI’s and UAB’s Animal Care and Use Committee.