Medizinische Universität Graz Austria/Österreich - Forschungsportal - Medical University of Graz

Logo MUG-Forschungsportal

Gewählte Publikation:

SHR Neuro Krebs Kardio Lipid

Buerger, C; Shirsath, N; Lang, V; Berard, A; Diehl, S; Kaufmann, R; Boehncke, WH; Wolf, P.
Inflammation dependent mTORC1 signaling interferes with the switch from keratinocyte proliferation to differentiation.
PLoS One. 2017; 12(7):e0180853-e0180853 [OPEN ACCESS]
Web of Science PubMed PUBMED Central FullText FullText_MUG


Autor/innen der Med Uni Graz:
Shirsath Nitesh Pralhad
Wolf Peter

Dimensions Citations:

Plum Analytics:
Number of Figures: 6
| | | | | |
Psoriasis is a frequent and often severe inflammatory skin disease, characterized by altered epidermal homeostasis. Since we found previously that Akt/mTOR signaling is hyperactivated in psoriatic skin, we aimed at elucidating the role of aberrant mTORC1 signaling in this disease. We found that under healthy conditions mTOR signaling was shut off when keratinocytes switch from proliferation to terminal differentiation. Inflammatory cytokines (IL-1β, IL-17A, TNF-α) induced aberrant mTOR activity which led to enhanced proliferation and reduced expression of differentiation markers. Conversely, regular differentiation could be restored if mTORC1 signaling was blocked. In mice, activation of mTOR through the agonist MHY1485 also led to aberrant epidermal organization and involucrin distribution. In summary, these results not only identify mTORC1 as an important signal integrator pivotal for the cells fate to either proliferate or differentiate, but emphasize the role of inflammation-dependent mTOR activation as a psoriatic pathomechanism.
Find related publications in this database (using NLM MeSH Indexing)
Adolescent -
Adult -
Aged -
Animals -
Cell Differentiation - genetics
Cell Differentiation - physiology
Cell Line -
Cell Proliferation - genetics
Cell Proliferation - physiology
Female -
Humans -
Immunoassay -
Immunohistochemistry -
Keratinocytes - metabolism
Keratinocytes - physiology
Male -
Mechanistic Target of Rapamycin Complex 1 -
Mice -
Mice, Inbred BALB C -
Middle Aged -
Multiprotein Complexes - genetics
Multiprotein Complexes - metabolism
RNA, Small Interfering - genetics
Reverse Transcriptase Polymerase Chain Reaction -
Signal Transduction - genetics
Signal Transduction - physiology
TOR Serine-Threonine Kinases - genetics
TOR Serine-Threonine Kinases - metabolism
Young Adult -

© Med Uni Graz Impressum