Article: TAOK3 limits age-associated inflammation by negatively modulating macrophage differentiation and their production of TNFα.
2023 Volume 20, Issue 1, Page(s) 31
Abstract: Background: Human aging is characterized by a state of chronic inflammation, termed inflammaging, for which the causes are incompletely understood. It is known, however, that macrophages play a driving role in establishing inflammaging by promoting pro- ... ...
Abstract | Background: Human aging is characterized by a state of chronic inflammation, termed inflammaging, for which the causes are incompletely understood. It is known, however, that macrophages play a driving role in establishing inflammaging by promoting pro-inflammatory rather than anti-inflammatory responses. Numerous genetic and environmental risk factors have been implicated with inflammaging, most of which are directly linked to pro-inflammatory mediators IL-6, IL1Ra, and TNFα. Genes involved in the signaling and production of those molecules have also been highlighted as essential contributors. TAOK3 is a serine/threonine kinase of the STE-20 kinase family that has been associated with an increased risk of developing auto-immune conditions in several genome-wide association studies (GWAS). Yet, the functional role of TAOK3 in inflammation has remained unexplored. Results: We found that mice deficient in the serine/Threonine kinase Taok3 developed severe inflammatory disorders with age, which was more pronounced in female animals. Further analyses revealed a drastic shift from lymphoid to myeloid cells in the spleens of those aged mice. This shift was accompanied by hematopoietic progenitor cells skewing in Taok3 Conclusions: Essentially, Taok3 deficiency promotes the accumulation of monocytes in the periphery and their adoption of a pro-inflammatory phenotype. These findings illustrate the role of Taok3 in age-related inflammation and highlight the importance of genetic risk factors in this condition. |
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Language | English |
Publishing date | 2023-07-03 |
Publishing country | England |
Document type | Journal Article |
ZDB-ID | 2168941-6 |
ISSN | 1742-4933 |
ISSN | 1742-4933 |
DOI | 10.1186/s12979-023-00350-y |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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