LEPTIN: FROM APPETITE SUPPRESSION TO AUTOIMMUNITY

Milica Ranđelović, Tatjana M. Jevtović-Stoimenov

DOI Number
http://doi.org/10.22190/FUMB191004017R
First page
34
Last page
38

Abstract


The hormone leptin is released by adipocytes accordingly to current energy stores to suppress appetite. Apart from this, leptin acts as a proinflammatory cytokine and strongly stimulates  inflammation. Immune-modulating properties are partly achieved by affecting T-cell maturation, polarization, and viability. Leptin rises inflammatory cells count, increases proinflammatory cytokine secretion, and impairs regulatory T-lymphocytes differentiation. Leptin secretion and signalization disturbances have recently started to be observed in the context of autoimmunity.  In this review, we discuss signaling pathways affected by the satiety hormone, its effect on T-lymphocyte maturation, differentiation and polarization, and relation to other immune-modulating agents. In the end, we highlight the rising evidence connecting hyperleptinemia state which is almost always related to obesity, with autoimmune disorders and take a brief overview of possible mechanisms behind leptin’s potency to induce self-reactivity.


Keywords

leptin, leptin resistance, leptin receptor, autoimmunity

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References


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DOI: https://doi.org/10.22190/FUMB191004017R

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ISSN 0354-2017 (Print)

ISSN 2406-0526  (Online)