Boronate-tau mediated uptake in neurons

Area of Science:

• Neuroscience
• Biochemistry
• Cell Biology

Background:

• Tau protein is crucial for neuronal function.
• Deficiency or dysfunction of tau protein is implicated in neurodegenerative diseases.
• Efficient delivery of exogenous tau protein into cells remains a challenge.

Purpose of the Study:

• To develop a novel method for delivering exogenous tau protein into cells.
• To investigate the effects of boronated tau protein on cellular structures.
• To assess the in vivo efficacy of boronated tau protein delivery.

Main Methods:

• Tau protein was chemically modified with boronic acid.
• Boronated tau was introduced into cultured non-neuronal and tau-knockout neuronal cells.
• Intracranial injection of boronated tau was performed in tau-knockout mice.

Main Results:

• Boronated tau facilitated its uptake into both non-neuronal and neural cells.
• Incorporated tau promoted the formation of cytoplasmic extensions in non-neuronal cells.
• Boronated tau induced neurite appearance in tau-knockout hippocampal neurons and was detected in vivo.

Conclusions:

• Boronic acid modification provides an effective strategy for tau protein delivery.
• Exogenous tau protein can restore or induce cellular structures in tau-deficient contexts.
• This novel method holds potential for therapeutic applications in tauopathies.