PSEN1 (or Presenilin-1) is the main worker in an enzyme called gamma-secretase. It chops up this protein, APP, right in the cell's outer layer. This chopping makes different versions of amyloid-beta (Aβ) protein, and one type, Aβ42, is especially bad because it hates water and clumps up easily. This clumping is a big step in forming those toxic fibers that then build up as damaging plaques in the brain. Even small groups of Aβ42 can mess with calcium levels in cells, push another protein (tau) to form tangles, and even trigger cell death. How PSEN1 is shaped, thanks to certain parts and key bits called Asp257/385, decides what it acts on. Trying to treat Alzheimer's by tweaking gamma-secretase to reduce the bad Aβ42 without causing other issues depends on really understanding PSEN1's structure. Brain connections weaken, brain cells die – figuring out this enzyme is key to stopping Alzheimer's.
Consequently, gene-engineered cell models are indispensable tools for elucidating PSEN1 function and the impact of disease-associated mutations. Creative Biolabs offers a diverse portfolio of PSEN1 gene-engineered cell model products to support research endeavors in this critical area. Explore our PSEN1 Gene-Engineered Cell Model categories below for detailed information, or directly access our comprehensive Product List.
Creative Biolabs offers PSEN1 gene-engineered cell models with the following features:
Features | Descriptions |
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Precise disease modeling | Cell models accurately replicate specific PSEN1 mutations and their effects on Alzheimer's disease. |
Tools for targeted drug discovery | Models are invaluable for drug screening, assessing efficacy in modulating PSEN1 processing, and evaluating their ability to reduce toxic amyloid-beta peptide production. |
Mechanistic insights | Researchers can use these models to dissect how PSEN1 mutations contribute to Alzheimer's disease. |
Creative Biolabs offers PSEN1 gene-engineered cell models with the following advantages:
There's this protein called PSEN1, and it's a big deal when we're trying to understand how Alzheimer's disease (AD) takes hold. It's not just about sending signals inside our cells; it also pitches in with breaking down old proteins and keeping our nerve cells humming along as they should. Now, PSEN1 is actually a crucial piece of a bigger puzzle – something called the gamma-secretase complex. Its main gig there is to cut up another protein, the amyloid precursor protein (APP). When it does that, it creates different kinds of these things called amyloid-beta peptides, and one specific type, Aβ42, is really bad news for the brain. The general idea is that when this Aβ42 starts to accumulate, it throws off how our brain cells communicate, kind of pushes the brain to form those tangled messes you often hear about in AD, and sadly, it eventually leads to nerve cells dying off. Because of all this, really digging into how PSEN1 works within this whole messy process is absolutely vital if we want to figure out ways to effectively treat Alzheimer's.
PSEN1 Mechanism | Description |
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Amyloid Generation | PSEN1 cleaves APP to produce Aβ peptides. PSEN1 mutations can change gamma-secretase activity, increasing the production of neurotoxic Aβ42, which aggregates into amyloid plaques, a hallmark of AD. |
Synaptic Dysfunction | Aβ42 accumulation disrupts neuronal communication. PSEN1 mutations may directly or indirectly affect synaptic protein levels and function, exacerbating this. |
Tau Pathology | PSEN1 mutations are also implicated in tau protein's abnormal phosphorylation and aggregation, another key AD feature. The exact mechanism is unclear, but PSEN1 may alter the kinase and phosphatase activity involved in tau phosphorylation. |
Neuroinflammation | Aβ plaques and PSEN1 mutations can trigger brain inflammation, further damaging neurons and contributing to AD progression. |
Mitochondrial Dysfunction | PSEN1 mutations may impair mitochondrial function, decreasing energy production, increasing oxidative stress, and promoting apoptosis. |
Creative Biolabs is committed to providing cutting-edge tools and expert support to accelerate neural research. Don't hesitate to contact us for learning more about our PSEN1 gene-engineered cell model products. We have the confidence to help you achieve your research goals.
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