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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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Antiapoptotic role of PPARbeta in keratinocytes via transcriptional control of the Akt1 signaling pathway.

Apoptosis, differentiation, and proliferation are cellular responses which play a pivotal role in wound healing. During this process PPARbeta translates inflammatory signals into prompt keratinocyte responses. We show herein that PPARbeta modulates Akt1 activation via transcriptional upregulation of ILK and PDK1, revealing a mechanism for the control of Akt1 signaling. The resulting higher Akt1 activity leads to increased keratinocyte survival following growth factor deprivation or anoikis. PPARbeta also potentiates NF-kappaB activity and MMP-9 production, which can regulate keratinocyte migration. Together, these results provide a molecular mechanism by which PPARbeta protects keratinocytes against apoptosis and may contribute to the process of skin wound closure.[1]

References

  1. Antiapoptotic role of PPARbeta in keratinocytes via transcriptional control of the Akt1 signaling pathway. Di-Poï, N., Tan, N.S., Michalik, L., Wahli, W., Desvergne, B. Mol. Cell (2002) [Pubmed]
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