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Updated: Mar 19, 2026
07:56
Modified Yeast-Two-Hybrid System to Identify Proteins Interacting with the Growth Factor Progranulin
Published on: January 17, 2012
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[Progranulin].
Nihon Rinsho. Japanese Journal of Clinical Medicine
|June 24, 2016
Summary
Progranulin (PGRN) shows therapeutic potential for stroke by protecting the brain through multiple mechanisms. Administered PGRN reduced stroke damage and improved outcomes in rats, suggesting it as a novel therapeutic target.
Area of Science:
- Neuroscience
- Molecular Biology
- Regenerative Medicine
Background:
- Progranulin (PGRN) is vital for central nervous system function.
- PGRN gene mutations are linked to TDP-43-positive frontotemporal lobar degeneration.
- PGRN expression changes dynamically during ischemic events.
Purpose of the Study:
- To investigate the role of PGRN in protecting against acute focal cerebral ischemia.
- To elucidate the multifaceted mechanisms underlying PGRN's neuroprotective effects.
- To evaluate the therapeutic potential of PGRN in a preclinical stroke model.
Main Methods:
- Analyzing PGRN expression in microglia, neurons, and endothelial cells in ischemic rat models.
- Utilizing PGRN knock-out mice to study neuroprotection and TDP-43.
- Assessing anti-neuroinflammatory effects via interleukin-10 in microglia.
- Evaluating blood-brain barrier integrity modulation via vascular endothelial growth factor.
- Testing recombinant PGRN therapy in a rat thromboembolic stroke model.
Main Results:
- PGRN expression increased in microglia, neurons, and endothelial cells post-ischemia.
- PGRN inhibited TDP-43 cytoplasmic redistribution, suppressed neuroinflammation, and attenuated blood-brain barrier disruption.
- Intravenous recombinant PGRN significantly reduced infarct and edema volumes.
- Recombinant PGRN suppressed hemorrhagic transformation and improved motor function in rats.
Conclusions:
- PGRN exhibits significant neuroprotective, anti-neuroinflammatory, and vascular protective effects against cerebral ischemia.
- PGRN demonstrates therapeutic potential for treating acute focal cerebral ischemia.
- PGRN represents a promising novel therapeutic target for stroke treatment development.
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