Spheroid Formation Methods
Spheroid Formation Methods - Related Videos
11:24
Evaporation-reducing Culture Condition Increases the Reproducibility of Multicellular Spheroid Formation in Microtiter Plates
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Cited by 6 •
2017
The uneven loss of medium from microtiter plates affects the reproducibility of uniform multicellular tumor spheroid formation. Improving culture conditions to reduce significant medium loss will improve the reproducibility of spheroid formation and the results of spheroid-based assays using the liquid-overlay technique.
07:46
An Efficient and Flexible Cell Aggregation Method for 3D Spheroid Production
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Cited by 67 •
2017
Here, we describe a rapid and flexible protocol for the formation of 3D cell spheroids through cell aggregation. This is easily adapted to multiple cell types and is suitable for use in a variety of applications including cell migration, invasion, or anoikis assays, and for imaging and quantifying cell-matrix interactions.
05:39
Extracellular Flux Assay in 3D Spheroids: A Method for Measuring the Metabolic Activity of Pancreatic Tumor Spheroids
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2023
This protocol describes the technique for performing extracellular flux assay on 3D spheroids generated from the co-culture of pancreatic cancer cells (Patu8902) and activated pancreatic fibroblasts (PS1) to measure the two major energy-producing pathways, glycolysis and mitochondrial respiration.
03:33
Hanging Drop Method: A Technique to Generate 3D Melanoma Spheroids
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2023
This video describes the technique of generating three-dimensional spheroids via the hanging drop method using melanoma cells. The generated in vitro three-dimensional (3D) organotypic melanoma spheroid model can portray the in vivo architecture of malignant melanoma and may give insights into intra-tumoral...
04:01
Spheroid Generation from Cell Lines: A Three-Dimensional (3D) Cell Culture Method
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2023
Spheroids are a type of 3D cell culture model used to more accurately represent a cell’s environment compared to 2D cell culture monolayer models. In the example protocol, we will see scientists generate spheroids from a colorectal cancer cell line and apply live-cell imaging to track the spheroids’ growth.
FAQs
They reduce or prevent cell attachment to a conventional culture surface, keeping cells in close proximity. Cell-cell adhesion then draws the cells together, while compaction and extracellular matrix production stabilize the developing aggregate. This sequence creates a more organized three-dimensional culture environment and allows researchers to examine how physical contact and matrix formation influence cell behavior.
Size and uniformity affect how consistently cells experience the spheroid’s internal environment. Aggregates with controlled dimensions provide more comparable models across experiments, while differences in size can alter internal gradients and cellular organization. Controlling these features is therefore important when studying tissue development, comparing drug responses, or designing spheroids for scaffold-free tissue fabrication.
Flat monolayers place cells on a solid surface and do not reproduce the same three-dimensional organization found in spheroids. Spheroid cultures permit closer cell-cell contact, compaction, and extracellular matrix production, creating tissue-like features that can change observed cell interactions and responses. This makes them useful when two-dimensional cultures do not adequately represent native tissue organization.
Cell-cell adhesion initiates and maintains contact among neighboring cells as attachment to a solid surface is limited. As the cluster compacts, cells produce extracellular matrix that contributes to aggregate organization and stability. Together, these processes transform a loose cell assembly into a structured spheroid, making them central variables when evaluating formation and tissue-like behavior.
Common options include hanging drops, low-adhesion plates, rotating cultures, and microwells. Each approach limits surface attachment or guides cells into close contact, but the physical setup used to gather cells differs. Selecting among these formats allows bioengineers to work with different strategies for producing aggregates whose size, uniformity, and organization can then be evaluated.
A general workflow begins by placing living cells in a format that limits attachment or promotes close contact, such as a hanging drop, low-adhesion plate, rotating culture, or microwell. Cells are then allowed to adhere to one another, compact, and produce extracellular matrix. Researchers can assess the resulting aggregates for size, uniformity, and tissue-like organization.
Spheroids support studies of tissue development, cell interactions, drug responses, and tumor biology because they reproduce aspects of native cell organization beyond a flat culture. Their controllable size and internal gradients also make them relevant to scaffold-free tissue fabrication. In addition, they can inform organoid design and the development of regenerative therapies.