Serum-free Adaptation
Serum-free Adaptation - Related Videos
08:29
Feeder-Free Adaptation, Culture and Passaging of Human IPS Cells using Complete KnockOut Serum Replacement Feeder-Free Medium
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Cited by 14 •
2010
The following protocol provides instruction for adapting human induced Pluripotent Stem (iPS) Cells to feeder-free culture using complete KnockOut Serum Replacement Feeder-Free medium (KSR-FF). Once adapted, instructions for continual maintenance are also provided.
06:44
Isolation of Small Noncoding RNAs from Human Serum
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Cited by 13 •
2014
This protocol describes a method for extracting small RNAs from human serum. We have used this method to isolate microRNAs from cancer serum for use in DNA arrays and also singleplex quantitative PCR. The protocol utilizes phenol and guanidinium thiocyanate reagents with modifications to yield high quality RNA.
02:52
Development and Maintenance of Serum-Free Embryoid Bodies
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2025
The video describes the procedure for developing serum-free embryoid bodies (SFEBs) from neuronal progenitor cells using various serum-free differentiation mediums or DM. DM-2 facilitates neurons' maturation and arrangement to form SFEBs, while DM-3 is used for further growth maintenance.
11:30
A Molecular Readout of Long-term Olfactory Adaptation in C. elegans
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Cited by 2 •
2012
Here we describe a molecular readout of long-term olfactory adaptation in Caenorhabditis elegans. The Protein Kinase G, EGL-4, is necessary for stable adaptation responses in the primary sensory neuron pair called AWC. During prolonged odor exposure EGL-4 translocates from the cytosol to nucleus of the AWC.
01:26
Cellular Adaptation II: Hypertrophy
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2026
Hypertrophy is the increase in the size of individual cells, resulting in the enlargement of a tissue or organ. Unlike hyperplasia, which involves an increase in cell number, hypertrophy is characterized by an increase in cell volume. This process often occurs in response to higher functional demand or hormonal stimulation, leading to the production of more structural proteins and organelles, thereby enhancing the cells' work capacity.There are two primary types of hypertrophy: physiological...
FAQs
During Serum-free Adaptation, cells must rebalance the biochemical inputs that support survival and proliferation. Gradual serum reduction gives them time to adjust while the formulation supplies essential nutrients, growth factors, hormones, and attachment-supporting components. This coordinated replacement helps maintain culture function as dependence on the original medium decreases.
Serum reduction can alter cellular metabolism and survival pathways because cells no longer receive the same mixture of external signals. Adaptation therefore reflects biochemical adjustment as well as continued proliferation. Examining these responses helps distinguish whether a formulation supplies the factors needed to sustain the culture under defined conditions.
Chemically defined media replace undefined serum contributions with specified components, giving investigators greater control over biochemical conditions. This reduces batch-to-batch variability and makes changes in cell signaling, protein production, or drug responses easier to interpret. The result is a more reproducible basis for biochemistry experiments and process development.
A controlled transition usually proceeds by gradually reducing serum rather than removing it immediately. At each stage, the formulation must continue providing essential nutrients, growth factors, hormones, and attachment-supporting components. This staged approach allows cells to adjust their metabolism, survival pathways, and proliferation to the new biochemical environment.
Serum-free Adaptation is particularly useful when investigators need to study cell signaling, measure protein production, evaluate drug responses, or develop a bioprocess with greater control over medium composition. By reducing undefined contributions and variability, the approach can make biochemical comparisons and process-related observations more reproducible.
An important outcome is a clearer picture of which biochemical requirements sustain the culture. During adaptation, the response to defined nutrients, growth factors, hormones, and attachment-supporting components provides context for interpreting survival and proliferation. This information can guide media selection for signaling studies, production work, drug testing, and bioprocess development.