In vivo bioluminescence was detected as previously described using an optical imaging device (Ami-X, Spectral Instruments Imaging) [17 (link)]. To detect in vivo bioluminescence signal, mice were i.p. injected with D-luciferin (150 mg kg−1, Goldbio, St. Louis, MO, USA). Aura Software (Spectral Instruments Imaging, Version 2.2.1.1) was used for quantification. Also, ex vivo imaging, tissues were collected from the CIDEA reporter mice treated with D-luciferin (150 mg kg−1, Goldbio, St. Louis, MO, USA). During imaging, the isolated tissues were maintained in 12 well plates containing D-luciferin (300 μg/ml).
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