Efficient Method for Producing Human Brown Fat Cells Developed

New research from scientists at Brigham and Women’s Hospital sheds light on the development of brown adipocytes, specialized cells that convert energy into heat. Until recently, a lack of understanding regarding brown adipocyte tissue (BAT) development limited its therapeutic application. In the new study, the team unveiled a set of cellular signaling cues that trigger brown adipocyte formation in mice and successfully translated this knowledge to create human brown adipocytes in vitro.

The scientists employed machine learning tools in conjunction with single-cell RNA sequencing to analyze signals associated with the emergence of various tissue types in embryonic mice. Their findings revealed a preliminary developmental stage before BAT formation characterized by heightened expression of a transcription factor named GATA6. Importantly, this same pattern was identified in human BAT precursors.

By replicating this sequence of signals in human pluripotent stem cells, the researchers successfully transformed them into functional brown adipocytes. These cells responded to physiological stimuli by increasing metabolism to generate heat, demonstrating their functionality.

Dr. Olivier Pourquié, corresponding author of the study published in Developmental Cell, emphasized the importance of this discovery, stating, “There is a growing body of work in preclinical models showing that grafting additional brown fat cells can improve diabetes and obesity. Our work could help develop cell therapy strategies for the treatment of cardiometabolic diseases.”