Macropinocytosis Growth
Macropinocytosis Growth - Related Videos
10:45
In Situ Visualization of Axon Growth and Growth Cone Dynamics in Acute Ex Vivo Embryonic Brain Slice Cultures
0 Views •
Cited by 4 •
2021
This protocol demonstrates a straightforward and robust method to study in situ axon growth and growth cone dynamics. It describes how to prepare ex vivo physiologically relevant acute brain slices and provides a user-friendly analysis pipeline.
06:47
High-throughput Measurement of Dictyostelium discoideum Macropinocytosis by Flow Cytometry
0 Views •
Cited by 8 •
2018
Macropinocytosis, large-scale non-specific fluid uptake, is important in many areas of clinical biology including immunology, infection, cancer, and neurodegenerative diseases. Here, existing techniques have been adapted to allow high-throughput, single-cell resolution measurement of macropinocytosis in the macropinocytosis model organism Dictyostelium discoideum using flow cytometry.
11:46
Axon Stretch Growth: The Mechanotransduction of Neuronal Growth
0 Views •
Cited by 30 •
2011
A unique tissue engineering method was developed to elongate numerous nerve fibers in culture by recapitulating axon stretch growth; a form of nervous system growth whereby nerves elongate in conjunction with growth of the enlarging body.
14:47
Population Growth - Student Protocol
0 Views •
2019
Exponential Population Growth Model ExpandNOTE: In these experiments you will use computer software to simulate different types of growth models. HYPOTHESES: The experimental hypothesis might be that if we increase either R, the reproductive rate or the initial population size, NT, that this will increase the population size after 10 generations in an exponential growth model compared to unmanipulated control populations. The null hypothesis may be that populations of different R and initial...
04:45
Population Growth - Concepts
0 Views •
2019
Population Models An ecological population is a group of individuals of a single species living in an area at the same time. To persist, a population must either grow or maintain its size. Population ecology is the study of how population size and age distribution change over time through interactions with other species and the environment as well as with individuals of their own species. A particularly important feature that is studied by ecologists is the rate at which a population grows or...
FAQs
Genetic control can act at several connected points: genes involved in actin remodeling influence membrane ruffling, genes governing membrane trafficking affect macropinosome handling, and nutrient-metabolism genes influence how internalized materials become useful to the cell. Examining these categories together helps researchers connect fluid uptake with downstream effects on proliferation and survival.
Macropinosome maturation is important because internalized extracellular fluid does not itself explain how growth is supported. As these vesicles mature, they can release amino acids and other building blocks that cells use for growth. Genetic changes affecting maturation or subsequent nutrient processing may therefore alter how effectively cells convert macropinocytosed material into growth-supporting resources.
Actin remodeling helps shape the plasma-membrane ruffles that enclose surrounding fluid. A gene that changes this remodeling may consequently influence the amount of fluid entering macropinosomes and the resulting nutrient supply. In genetics research, linking candidate-gene disruption with altered uptake provides a way to evaluate whether actin regulation contributes to cellular proliferation or survival.
A central approach is to measure fluid uptake and compare that result after disrupting candidate genes. Researchers can then assess whether a genetic change alters the pathway associated with macropinosome formation, maturation, or nutrient use. This strategy connects an observable uptake phenotype with gene function and can help distinguish regulators of macropinocytosis from genes whose effects occur later in growth-related processes.
Candidate genes may be disrupted when researchers want to test the roles of actin remodeling, membrane trafficking, or nutrient metabolism in the pathway. Comparing cells with and without the disruption can reveal whether a gene affects fluid uptake, nutrient release, proliferation, or survival. The approach is relevant to studies of development and disease because it links genetic function with cellular outcomes.
Tumors may exploit macropinocytosis to support growth when nutrients are limited. Studying this behavior allows researchers to examine how genes controlling uptake and nutrient processing contribute to proliferation or survival under nutrient stress. Measuring fluid uptake and testing candidate genes can therefore clarify pathway function in disease-related settings, while also connecting cellular nutrition with genetic regulation.