Phototherapy with physically and molecularly produced light for Alzheimer's disease
Kuang, S.; Zhu, B.; Zhang, J.; Yang, F.; Wu, B.; Ding, W.; Sheng, S.; Zhang, C.; Ran, C.
Show abstract
Over the past decades, classical drug development approaches for Alzheimers disease have yielded limited success, and this futileness has prompted scientists to seek non-classical approaches. In this report, we demonstrated that, with irradiation of LED light or with molecularly generated light (dubbed as "molecular light") from chemiluminescence probe ADLumin-4, photolabile curcumin analogue CRANAD-147 could change properties, structures (sequences) and neurotoxicity of amyloid beta (A{beta}) species in vitro. We further demonstrated that, with the assistance from molecular chemiluminescence imaging, the combination of CRANAD-147/LED or CRANAD-147/ADLumin-4 (molecular light) could slow down the accumulation of A{beta}s in transgenic 5xFAD mice in vivo. Due to the unlimited capacity of tissue penetration of molecular light in vivo, phototherapy with the combination of photolabile A{beta} ligand and molecular light has great potential as an alternative approach for AD drug discovery.
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