@article{10902/28633, year = {2022}, month = {3}, url = {https://hdl.handle.net/10902/28633}, abstract = {White adipose tissue (WAT) is a specialized tissue whose main function is lipid synthesis and triglyceride storage. It is now considered as an active organ secreting a plethora of hormones and cytokines namely adipokines. Discovered in 1994, leptin has emerged as a key molecule with pleiotropic functions. It is primarily recognized for its role in regulating energy homeostasis and food intake. Currently, further evidence suggests its potent role in reproduction, glucose metabolism, hematopoiesis, and interaction with the immune system. It is implicated in both innate and adaptive immunity, and it is reported to contribute, with other adipokines, in the cross-talking networks involved in the pathogenesis of chronic inflammation and immune-related diseases of the musculoskeletal system such as osteoarthritis (OA) and rheumatoid arthritis (RA). In this review, we summarize the most recent findings concerning the involvement of leptin in immunity and inflammatory responses in OA and RA.}, organization = {O.G. and F.L. are staff personnel (I3SNS stable researchers) of Xunta de Galicia (Servizo Galego de Saude, SERGAS) through a research-staff contract (ISCIII/SERGAS). C.R.F. is a predoctoral research scholar funded by ISCIII and FEDER (Exp.18/00188). M.G.R. is a recipient of a pre-doctoral contract funded by Xunta de Galicia (IN606A-2020/010). A.C.B. is a recipient of a pre-doctoral contract funded by Secretaría de Estado de Universidades, Investigación, Desarrollo e Innovación, Ministerio de Universidades (FPU2018-04165). O.G. and MAGG are members of the RICORS Programme, RD21/0002/0025 via ISCIII and FEDER. F.L. is a member of Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV). The work of O.G. and J.P. (PI17/00409 and PI20/00902), and F.L. (PI18/00821, PI21/01145) is funded by ISCIII and FEDER. O.G. is a beneficiary of a project funded by the Research Executive Agency of the European Union in the framework of MSCA-RISE Action of the H2020 Programme (project number 734899). O.G. is beneficiary of a grant funded by Xunta de Galicia, Conselleriá de Educación, Universidade e Formación Profesional, and Conselleriá de Economia, Emprego e Industria (GAIN), GPC IN607B2019/10.}, publisher = {MDPI}, publisher = {Int J Mol Sci. 2022, 23(5), 2859}, title = {Leptin in osteoarthritis and rheumatoid arthritis: player or bystander?}, author = {Ait Eldjoudi, Djedjiga and Cordero Barreal, Alfonso and González-Rodriguez, María and Ruiz-Fernández, Clara and Farrag, Yousof and Lago, Francisca and Capuozzo, Maurizio and González-Gay Mantecón, Miguel Ángel and Mera Varela, Antonio and Pino, Jesús and Gualillo, Oreste}, }