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Updated: Nov 15, 2025

Measuring Axonal Cargo Transport in Mouse Primary Cortical Cultured Neurons
Published on: February 24, 2023
Roles of the multivalent dynein adaptors BicD2 and RILP in neurons.
Richard B Vallee1, Julie Yi1, Sebastian Quintremil1
1Columbia University, Department of Pathology and Cell Biology, United States.
Cytoplasmic dynein, crucial for retrograde transport, utilizes adaptor proteins like BicD and RILP to manage cargo interactions and motor behavior. These adaptors reveal diverse functions, from expanding cargo reach to mediating autophagy.
Area of Science:
- Cellular Biology
- Molecular Motors
- Neuroscience
Background:
- Cytoplasmic dynein drives essential retrograde transport in neurons and other cell types.
- Adaptor proteins, characterized by coiled-coil domains, are key to expanding dynein's cargo interactions and regulating motor function.
Purpose of the Study:
- To review the functions of BicD family and RILP adaptor proteins in relation to cytoplasmic dynein.
- To highlight the distinct roles of these adaptors in cargo transport and cellular pathways.
Main Methods:
- Literature review of studies on dynein adaptor proteins.
- Analysis of the structural and functional characteristics of BicD and RILP.
- Integration of findings on dynein-mediated cargo transport and autophagy.
Main Results:
- BicD family adaptors expand the range of cargo that dynein can interact with.
- RILP acts as an adaptor protein mediating key steps in higher eukaryotic autophagy.
- These adaptors demonstrate diverse mechanisms for regulating dynein function.
Conclusions:
- Dynein adaptor proteins play critical, multifaceted roles in cellular transport and processes.
- Understanding these adaptors is essential for a comprehensive view of dynein motor functions.
- Distinct adaptor proteins mediate different cellular pathways, showcasing dynein's versatility.
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