Related Experiment Video
Updated: Aug 9, 2026
08:02
Phospholipid Mediator Induced Transformation in Three-Dimensional Cultures
Published on: July 27, 2022
The ultrastructure of MCF-10A acini
Jean M Underwood1, Karen M Imbalzano, Valerie M Weaver
1Department of Cell Biology, University of Massachusetts Medical School, Worcester, Massachusetts 01655, USA.
Journal of Cellular Physiology
|April 12, 2006
Summary
Three-dimensional cultures of human mammary epithelial cells (MCF-10A) mimic normal breast tissue architecture. Ultrastructural analysis reveals key differences compared to monolayer cultures and native tissues, offering insights into cell structure and potential malignant changes.
Area of Science:
- Cell Biology
- Biotechnology
- Cancer Research
Background:
- MCF-10A cells in 3D culture form acini resembling mammary lobules.
- This model is crucial for studying cell signaling in proliferation, death, and malignant progression.
Purpose of the Study:
- To compare the ultrastructure of MCF-10A acini, monolayer MCF-10A cells, and human breast lobule acini.
- To identify ultrastructural features relevant to normal and potentially malignant mammary epithelial cell organization.
Main Methods:
- Three-dimensional culture of MCF-10A cells in reconstituted basement membrane.
- Monolayer culture of MCF-10A cells.
- Comparative ultrastructural analysis using electron microscopy.
Main Results:
- MCF-10A acini exhibit hemidesmosomes, abundant desmosomes, and extensive intermediate filament bundles, unlike monolayer cells or breast tissue.
- Tight junctions were present in breast tissue but absent in MCF-10A acini.
- Polar cytoplasmic organization and nuclear morphology (single nucleolus, irregular surface) in MCF-10A acini resemble breast tissue, while monolayer cells show differences.
Conclusions:
- 3D culture of MCF-10A cells provides a relevant model for studying mammary epithelial cell architecture.
- Ultrastructural differences highlight the importance of the microenvironment in cell organization.
- Electron microscopy is valuable for detecting architectural changes associated with malignant transformation.
Related Concept Videos
00:55Microvilli
Microvilli are tiny finger-like projections found on the surface of certain cells. Their purpose is to increase the surface area of the cell's apical surface, resulting in more effective absorption or secretion of substances.
These microvilli are predominantly present in cells lining the small intestine, kidney tubules, and certain cells in the respiratory and reproductive systems. By significantly expanding the surface area of the cell membrane, microvilli enhance the cell's capacity to...
These microvilli are predominantly present in cells lining the small intestine, kidney tubules, and certain cells in the respiratory and reproductive systems. By significantly expanding the surface area of the cell membrane, microvilli enhance the cell's capacity to...
01:29Exocrine Glands: Unicellular and Multicellular Glands
Exocrine glands are classified as unicellular and multicellular. The unicellular glands are scattered single cells, such as goblet cells, found in the mucous membranes of the small and large intestines. On the other hand, multicellular exocrine glands develop as secretory sheets, like the internal lining of the abdomen or chest. Such secretory sheets release their secretions directly into the lumen of these organs. In addition, some multicellular glands have deep-seated secretory units to...
01:26Alveoli and Alveolar Ducts
The respiratory zone of the human body, which stands in contrast to the conducting zone, comprises the structures that actively participate in the exchange of gases. The initiation of this zone is marked by the terminal bronchioles converging into respiratory bronchioles, the tiniest bronchiole classification. The respiratory bronchioles give way to the alveolar ducts that opens into a congregation of alveoli. Actively involved in gas exchange, alveoli resemble tiny sacs similar to clusters of...