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Immunol Invest ; 52(1): 117-133, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36278927

RESUMO

The adipose tissue is an endocrine organ that secretes adipokines such as leptin, which is one of the most important hormones for controlling satiety, metabolism, and energy homeostasis. This hormone acts in the regulation of innate and adaptive immune responses since immune cells have leptin receptors from which this hormone initiates its biological action. These receptors have been identified in hematopoietic stem cells in the bone marrow and mature immune cells, inducing signaling pathways mediated by JAK/STAT, PI3K, and ERK 1/2. It is known that the bone marrow also contains leptin-producing adipocytes, which are crucial for regulating hematopoiesis through largely unknown mechanisms. Therefore, we have reviewed the roles of leptin inside and outside the bone marrow, going beyond its action in the control of satiety.


Assuntos
Tecido Adiposo , Leptina , Adipócitos/metabolismo , Adipocinas/metabolismo , Tecido Adiposo/metabolismo , Medula Óssea , Humanos
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