Yeast Alzheimer Model
Yeast Alzheimer Model - Related Videos
06:02
Detection of Neuritic Plaques in Alzheimer's Disease Mouse Model
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Cited by 66 •
2011
One of the pathological characteristics of AD is the formation of Amyloid β protein positive neuritic plaques. In this protocol we describe two methods to detect neuritic plaques in transgenic AD model mice: immunohistochemical detection using the ABC and DAB method and fluorescent detection using thioflavin S staining method.
08:30
Yeast Maintenance
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2023
Research performed in the yeast Saccharomyces cerevisiae has significantly improved our understanding of important cellular phenomona such as regulation of the cell cycle, aging, and cell death. The many benefits of working with S. cerevisiae include the facts that they are inexpensive to grow in the lab and that many ready-to-use strains are now commercially available. Nevertheless, proper maintenance of this organism is critical for successful experiments. This video will provide an overview...
07:48
Yeast Reproduction
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2023
Saccharomyces cerevisiae is a species of yeast that is an extremely valuable model organism. Importantly, S. cerevisiae is a unicellular eukaryote that undergoes many of the same biological processes as humans. This video provides an introduction to the yeast cell cycle, and explains how S. cerevisiae reproduces both asexually and sexually Yeast reproduce asexually through a process known as budding. In contrast, yeast sometimes participate in sexual reproduction, which is important because...
14:09
Genetic Studies of Human DNA Repair Proteins Using Yeast as a Model System
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Cited by 2 •
2010
Genetic studies in yeast can be employed to investigate the molecular and cellular functions of human genes in cellular DNA metabolism. Methods are described for the genetic characterization of the human WRN gene product defective in the premature aging disorder Werner syndrome in functionally conserved pathways using yeast as a tractable model system.
08:30
Yeast Transformation and Cloning
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2023
S. cerevisiae are unicellular eukaryotes that are a commonly-used model organism in biological research. In the course of their work, yeast researchers rely upon the fundamental technique of transformation (the uptake of foreign DNA by the cell) to control gene expression, induce genetic deletions, express recombinant proteins, and label subcellular structures. This video provides an overview of how and why yeast transformation is carried out in the lab. The important features of yeast...
FAQs
The model links expression of disease-related human proteins to measurable cellular stress. Amyloid-beta or tau can accumulate in yeast, allowing investigators to examine how that accumulation is associated with proteotoxic stress, altered mitochondrial function, and changes in growth or survival. This approach helps isolate molecular consequences of protein-related toxicity from more complex disease processes.
These readouts connect protein accumulation with cellular dysfunction. Proteotoxic stress indicates that disease-related proteins are challenging the cell’s ability to maintain protein balance, while altered mitochondrial function identifies another affected cellular process. Examining both responses helps researchers determine whether a candidate mechanism or compound changes the broader cellular consequences associated with amyloid-beta or tau.
Growth and survival provide practical indicators of how strongly expressed amyloid-beta or tau affects cellular fitness. A change in either outcome can be compared with protein accumulation, proteotoxic stress, or mitochondrial alterations to evaluate relationships among these features. Such measurements support controlled comparisons between experimental conditions and help identify effects suitable for further mechanistic study.
Yeast systems emphasize cellular processes that can be studied without the tissue complexity of the nervous system. If protein accumulation produces stress, mitochondrial changes, or viability effects in yeast, those observations can point to conserved mechanisms. However, the model does not capture every tissue-specific feature of Alzheimer’s disease, so its findings complement rather than replace animal or human-cell research.
A typical study expresses a disease-related human protein in yeast and then examines the resulting cellular responses. Investigators can assess protein accumulation alongside proteotoxic stress, mitochondrial function, and changes in growth or survival. Because the experiments are rapid and controlled, researchers can compare conditions systematically while focusing on specific molecular and cellular consequences.
Researchers can expose yeast expressing amyloid-beta or tau to candidate compounds and monitor whether the compounds alter disease-associated cellular outcomes. Measurements may include protein-related stress, mitochondrial changes, growth, or survival. The rapid, controlled format supports comparisons across many experimental conditions and can help prioritize compounds for testing in more complex models.
A yeast system can test whether changing a proposed cellular process modifies responses associated with amyloid-beta or tau expression. Evidence from altered stress, mitochondrial function, growth, or survival can support or weaken a mechanistic hypothesis. Researchers can then compare those results with animal or human-cell studies to determine which findings remain relevant in more complex biological settings.