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Maintenance of cholesterol homeostasis is essential to human health. Here, the authors identify and characterize a primate-specific long noncoding RNA, called CHROME, that controls cholesterol homeostasis through fine-tuning of miRNAs and whose levels are elevated in human atherosclerosis.
Impaired adipocyte insulin signalling characterizes insulin resistance. Here the authors show that the hormone-sensitive lipase can sequester the glucose-responsive transcription factor ChREBP in the cytoplasm, which prevents transcription of its target ELOVL6, resulting in reduced insulin signalling.
The metabolic dependencies of androgen receptor (AR)-driven growth in prostate adenocarcinoma are largely unknown but could represent a therapeutic target when hormonal manipulations fail. Here the authors demonstrate that the mitochondrial pyruvate carrier (MPC) is transcriptionally regulated by AR and that MPC inhibition suppresses tumour growth in hormone-responsive and castrate-resistant conditions.
Obese and dysfunctional adipose tissue is known to be hypoxic. Here the authors show that adipocyte oxygen consumption increases early after onset of high-fat diet feeding owing to activation of the mitochondrial protein ANT2 and that specific inhibition of ANT2 reduces adipose tissue hypoxia, inflammation and insulin resistance.
Glucose-dependent insulinotropic polypeptide (GIP) is a gut incretin hormone released in response to nutrients. Here, the authors report an anti-inflammatory and antiobesogenic mechanism of GIP by showing that loss of GIP receptor signalling in myeloid cells promotes pro-inflammatory S100A8/A9 release in adipose tissue.
