Key result
Fat-associated lymphoid clusters form via distinct molecular pathways and dynamically respond to inflammation.
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Fat-associated lymphoid clusters (FALCs) are atypical lymphoid tissues that were originally identified in mouse and human mesenteries due to that they contain a high number of type 2 innate lymphoid cells/nuocytes/natural helper cells. FALCs are located on adipose tissues in mucosal surfaces such as the mediastinum, pericardium, and gonadal fat. Importantly, these clusters contain B1, B2 and T lymphocytes as well as myeloid and other innate immune cell populations. The developmental cues of FALC formation have started to emerge, showing that these clusters depend on a different set of molecules and cells than secondary lymphoid tissues for their formation. Here, we review the current knowledge on FALC formation, and we compare FALCs and omental milky spots and their responses to inflammation.
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Cruz-Migoni et al. (2016) conducted a review in Inflammation. Fat-associated lymphoid clusters (FALCs) vs. Omental milky spots was evaluated. Fat-associated lymphoid clusters are atypical lymphoid tissues that depend on distinct molecular cues for formation compared to secondary lymphoid tissues and respond to inflammation.
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