Cellular Dysfunction
Cellular Dysfunction - Related Videos
09:39
Mapping Dysfunctional Protein-Protein Interactions in Disease
0 Views •
2025
Here, we present a protocol to enable the capture and identification of disease-specific protein-protein interactions from native cells and tissues using chemical probes and mass spectrometry. The resulting interaction datasets are analyzed through a dedicated web-based platform to reveal dynamic network dysfunctions and pathway alterations linked to disease.
05:00
Cellular Respiration - Concepts
0 Views •
2019
Autotrophs and Heterotrophs Living organisms require a continuous input of energy to maintain cellular and organismal functions such as growth, repair, movement, defense, and reproduction. Cells can only use chemical energy to fuel their functions, therefore they need to harvest energy from chemical bonds of biomolecules, such as sugars and lipids. Autotrophic organisms, namely plants, algae, and photosynthetic and chemosynthetic bacteria, convert inorganic materials into such biomolecules by...
05:44
Cellular Respiration - Student Protocol
0 Views •
2019
Quantifying Respiration using Microrespirometers ExpandNOTE: In this experiment, you will measure the rate of cellular respiration for germinating seeds by measuring the rate of exchange for oxygen. As oxygen is consumed to provide energy, germinating seeds release carbon dioxide. This carbon dioxide is absorbed by potassium carbonate and thus the overall gaseous pressure of the respirometer will be reduced. HYPOTHESES: The experimental hypothesis is that germinating seeds will show a greater...
06:26
Mouse Model of Metabolic Dysfunction-Associated Steatotic Liver Disease with Fibrosis
0 Views •
Cited by 1 •
2025
Mouse model of metabolic dysfunction-associated steatotic liver disease (MASLD) with metabolic dysfunction, hepatic gene expression changes, and liver histopathological alterations that resemble human MASLD, including fibrosis that progresses to advanced fibrosis stage 3. This model can be used in studies of MASLD pathophysiology and in pre-clinical studies of new therapies.
01:11
Cellular Injury IlI: Cellular Death
0 Views •
2026
Cell death is the irreversible loss of cellular structure and function, representing the final stage of severe injury. It plays a key role in both normal physiology and disease.Types of Cell DeathThe two main types are necrosis and apoptosis, though others like necroptosis and pyroptosis also exist.Necrosis:Necrosis is an unregulated form of cell death caused by severe injury such as trauma, toxins, or ischemia. It is characterized by cell swelling, membrane loss, rupture, and leakage of...
FAQs
Disruption in one core process can alter several others. Reduced energy production may limit cellular activity, while failures in protein homeostasis can disturb normal protein handling. Defects in membrane transport or intracellular signaling can further change how cells exchange materials and respond to information. Together, these disturbances can shift metabolism, activate stress responses, and threaten cell viability.
Genetic mutations, infections, toxins, and environmental changes can initiate cellular dysfunction through different biological routes. A mutation may alter a process required for normal cell activity, whereas an infection or toxin may interfere with cellular functions from outside. Environmental changes can also disturb cellular conditions. The resulting effects depend on which processes or pathways become impaired.
Changes in metabolism and stress responses provide evidence that a cell is no longer maintaining normal function. Impaired energy production can alter cellular activity, while stress responses indicate that the cell is reacting to internal or external damage. Examining these outcomes helps connect an initiating cause with affected pathways and with later loss of cell viability.
Cellular models provide experimental systems in which researchers can examine how cells respond when particular biological processes are affected. They help link genetic mutations, infections, toxins, or environmental changes to altered cell behavior. By studying these responses in a controlled model, investigators can identify disease mechanisms and determine which pathways may be suitable for further analysis.
Molecular assays allow researchers to evaluate the pathways and cellular changes associated with dysfunction. Used alongside cellular models, they can reveal which processes are affected and help distinguish changes linked to energy production, protein homeostasis, membrane transport, or intracellular signaling. This information supports analysis of disease mechanisms and evaluation of potential interventions.
Researchers can use cellular models and molecular assays to test whether an intervention improves impaired cell function or limits further damage. The analysis focuses on affected pathways, altered cellular processes, and outcomes such as stress responses or cell viability. This approach connects mechanistic findings with the practical goal of identifying strategies that may restore function in disease-related settings.