| First Author | Li D | Year | 2023 |
| Journal | Front Optoelectron | Volume | 16 |
| Issue | 1 | Pages | 45 |
| PubMed ID | 38095816 | Mgi Jnum | J:357504 |
| Mgi Id | MGI:7763737 | Doi | 10.1007/s12200-023-00099-8 |
| Citation | Li D, et al. (2023) Photostimulation of lymphatic clearance of beta-amyloid from mouse brain: a new strategy for the therapy of Alzheimer's disease. Front Optoelectron 16(1):45 |
| abstractText | Alzheimer's disease (AD) is an age-related neurodegenerative disorder that poses a significant burden on socio-economic and healthcare systems worldwide. However, the currently available therapy of AD is limited, and new strategies are needed to enhance the clearance of beta-amyloid (Abeta) protein and improve cognitive function. Photobiomodulation (PBM) is a non-invasive and effective therapeutic method that has shown promise in treating various brain diseases. Here, we demonstrate that 1267-nm PBM significantly alleviates cognitive decline in the 5xFAD mouse model of AD and is safe as it does not induce a significant increase in cortical temperature. Moreover, with the combination of 3D tissue optical clearing imaging and automatic brain region segmentation, we show that PBM-mediated reductions of Abeta plaques in different subregions of prefrontal cortex and the hippocampus are different. The PBM-induced lymphatic clearance of Abeta from the brain is associated with improvement of memory and cognitive functions in 5xFAD mice. Our results suggest that the modulation of meningeal lymphatic vessels (MLVs) should play an important role in promoting Abeta clearance. Collectively, this pilot study demonstrates that PBM can safely accelerate lymphatic clearance of Abeta from the brain of 5xFAD mice, promoting improvement of neurocognitive status of AD animals suggesting that PBM can be an effective and bedside therapy for AD. |
