Related Experiment Video
Updated: Jan 24, 2026

08:53
Assay to Measure Nucleocytoplasmic Transport in Real Time within Motor Neuron-like NSC-34 Cells
Published on: May 16, 2017
9.2K
Nucleocytoplasmic transport defects in neurodegeneration - Cause or consequence?
Saskia Hutten1, Dorothee Dormann2
1BioMedical Center (BMC), Ludwig-Maximilians-University Munich, 82152 Planegg-Martinsried, Germany.
Seminars in Cell & Developmental Biology
|June 2, 2019
Summary
Defects in nucleocytoplasmic transport are linked to neurodegenerative diseases like ALS and Alzheimer's. This review explores how transport issues contribute to protein aggregate formation and disease progression.
Area of Science:
- Neurobiology
- Molecular Biology
- Cell Biology
Background:
- Nucleocytoplasmic transport is crucial for cellular function.
- Defects in this transport are implicated in neurodegenerative diseases.
- The causal relationship between transport defects and protein aggregates remains unclear.
Purpose of the Study:
- To review alterations in nucleocytoplasmic transport machinery in neurodegenerative diseases.
- To discuss the functional impact of these transport defects.
- To explore parallels with aging and progeria for mechanistic insights.
Main Methods:
- Literature review of recent findings.
- Analysis of alterations in soluble and stationary transport components.
- Comparison with physiological aging and progeria.
Main Results:
- Nucleocytoplasmic transport defects are observed in amyotrophic lateral sclerosis (ALS), frontotemporal dementia (FTD), Alzheimer's disease (AD), and Huntington's disease (HD).
- These defects affect the transport of proteins and mRNAs.
- Similarities exist between transport alterations in neurodegeneration, aging, and progeria.
Conclusions:
- Impaired nucleocytoplasmic transport is a significant factor in neurodegenerative disease pathogenesis.
- Understanding these transport defects may offer new therapeutic strategies.
- Insights from aging and progeria can illuminate neurodegenerative mechanisms.
Related Concept Videos
Timing and Consequences on Behavior
368
In operant conditioning, the timing of reinforcement is crucial. For animals like rats and cats, immediate reinforcement (within a few seconds) is much more effective than delayed reinforcement. For example, a food reward for a rat needs to follow within 30 seconds of pressing a bar to be effective.
Humans, however, can respond to delayed reinforcers. We often make decisions between immediate small rewards and delayed larger rewards. This ability to delay gratification is a significant...
Humans, however, can respond to delayed reinforcers. We often make decisions between immediate small rewards and delayed larger rewards. This ability to delay gratification is a significant...
368
Facilitated Transport
146.7K
The chemical and physical properties of plasma membranes cause them to be selectively permeable. Since plasma membranes have both hydrophobic and hydrophilic regions, substances need to be able to transverse both regions. The hydrophobic area of membranes repels substances such as charged ions. Therefore, such substances need special membrane proteins to cross a membrane successfully. In facilitated transport, also known as facilitated diffusion, molecules and ions travel across a...
146.7K
Primary Active Transport
197.1K
In contrast to passive transport, active transport involves a substance being moved through membranes in a direction against its concentration or electrochemical gradient. There are two types of active transport: primary active transport and secondary active transport. Primary active transport utilizes chemical energy from ATP to drive protein pumps that are embedded in the cell membrane. With energy from ATP, the pumps transport ions against their electrochemical gradients—a direction...
197.1K
Secondary Active Transport
137.4K
One example of how cells use the energy contained in electrochemical gradients is demonstrated by glucose transport into cells. The ion vital to this process is sodium (Na+), which is typically present in higher concentrations extracellularly than in the cytosol. Such a concentration difference is due, in part, to the action of an enzyme “pump” embedded in the cellular membrane that actively expels Na+ from a cell. Importantly, as this pump contributes to the high concentration of...
137.4K
Lumber Defects
490
Lumber defects, which can affect both the appearance and structural integrity of wood, include a variety of growth and manufacturing flaws. Growth defects such as knots and knotholes occur where branches were once attached to the tree trunk, with knotholes forming when these knots fall out. Other natural defects include decay and insect damage, which compromise the wood's strength and durability.
Shakes are minor fractures that run along or across the wood's annual rings, while wane is...
Shakes are minor fractures that run along or across the wood's annual rings, while wane is...
490
Regulated mRNA Transport
7.0K
In eukaryotes, transcription and translation are compartmentalized; an mRNA is first synthesized in the nucleus and then selectively transported to the cytoplasm for protein synthesis. Before transport, a pre-mRNA undergoes several steps of post-transcriptional modifications including splicing, 5' capping, and the addition of a poly-adenine tail. Various proteins bind to the pre-mRNA during these modifications. The mRNA transport takes place with the help of multiple proteins playing...
7.0K

