Visualizing Nuclear Pore Complex Assembly In Situ in Human Cells at Nanometer Resolution by Correlating Live Imaging...

Area of Science:

• Cell Biology
• Molecular Biology
• Biophysics

Background:

• Nuclear pore complex (NPC) assembly is crucial for eukaryotic cell function.
• Studying NPC biogenesis is challenging due to rapid kinetics and small intermediate sizes.
• Existing methods lack the spatiotemporal resolution to capture dynamic assembly processes.

Purpose of the Study:

• To develop a robust protocol for in situ study of nuclear pore complex biogenesis.
• To enable quantitative and spatiotemporally resolved analysis of NPC assembly pathways.
• To provide a versatile method applicable to other cell cycle-associated events.

Main Methods:

• Combination of live-cell imaging and 3D electron microscopy.
• In situ analysis in cultured human cells.
• High spatiotemporal resolution imaging of nanoscale structures.

Main Results:

• Successful visualization of nuclear pore complex assembly intermediates.
• Quantitative data acquisition on the dynamics of NPC biogenesis.
• Demonstration of the protocol's applicability to study cell cycle events.

Conclusions:

• The developed protocol overcomes limitations in studying nuclear pore complex assembly.
• This method offers unprecedented spatiotemporal resolution for cell biology research.
• The technique is adaptable for investigating various dynamic cellular processes.