UPR Responsive Genes Manf and Xbp1 in Stroke
Helike Lõhelaid1, Jenni E Anttila2,3, Hock-Kean Liew4
1HiLIFE - Neuroscience Center, University of Helsinki, Helsinki, Finland.
Frontiers in Cellular Neuroscience
|July 5, 2022
Summary
Mesencephalic astrocyte-derived neurotrophic factor (MANF) and X-box binding protein 1 (XBP1) are key in cellular stress response after stroke. Understanding their roles may offer new ways to promote cell survival and improve stroke outcomes.
Area of Science:
- Neuroscience
- Cellular Biology
- Molecular Biology
Background:
- Stroke causes severe cell death due to cellular stress, with no current treatments to speed recovery.
- The unfolded protein response (UPR) is a cellular stress response that can be leveraged to enhance cell survival.
- Mesencephalic astrocyte-derived neurotrophic factor (MANF) is a UPR-responsive gene involved in maintaining proteostasis and exhibiting pro-survival effects.
Purpose of the Study:
- To review the expression profile and neuroprotective roles of MANF in stroke.
- To explore the relationship between MANF and another UPR-responsive gene, X-box binding protein 1 (XBP1).
- To systematically compare MANF and XBP1 to uncover novel associations and understand their mechanisms.
Main Methods:
- Literature review of existing studies on MANF and XBP1.
- Analysis of MANF's role in neurogenesis and inflammation post-stroke.
- Comparative investigation of MANF and XBP1 functions and expression.
Main Results:
- MANF demonstrates pro-survival effects in various disease models, including stroke.
- MANF's neuroprotective functions involve regulating neurogenesis and inflammation.
- MANF and XBP1 share commonalities in their functions as UPR-responsive genes.
Conclusions:
- MANF and XBP1 are crucial UPR-responsive genes with significant roles in cellular stress and survival.
- Understanding their distinct and overlapping mechanisms offers potential therapeutic strategies for stroke.
- Further research into these genes could lead to novel approaches for promoting cell survival in neurological conditions.


