Intestinal bacteria metabolite promotes capture of antigens by dendritic cells

Dendritic cells are immune cells that capture and present antigens to T cells, activating an immune response. Researchers from Okayama University have discovered that short-chain fatty acids produced by intestinal bacteria regulate a crucial step in this process, the extension of dendritic “arms.” This breakthrough finding could potentially lead to the development of disease prevention strategies involving beneficial bacteria and new drugs targeting the regulation of dendritic cell function.

Dendritic cells play a key role in the mammalian immune system. These cells are present throughout the human body and are known to capture foreign bodies, i.e., antigens, using extendable “arms” called dendrites. Once captured, dendritic cells present these substances to immune T cells, thereby initiating an immune response. Dendritic cells are responsive to their environment and capable of…

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