Basal Keratinocytes
Basal Keratinocytes - Related Videos
07:26
Generation of Organotypic Raft Cultures from Primary Human Keratinocytes
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Cited by 45 •
2012
An in vitro method to mimic in vivo epithelial differentiation is described. Many viruses target epithelial cells as part of their viral life cycle, and this method provides a means of examining virus:host interactions that more closely resembles that which occurs in vivo. This technique can be used with primary keratinocytes, established cell lines, as well as normal or diseased biopsy tissue.
05:36
Human Skin Keratinocyte Isolation: A Method to Culture Primary Keratinocytes from Skin Samples
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2023
This video describes the isolation of keratinocytes—the most prominent cells of human skin's epidermal layer, by employing a combination of enzymatic digestion and mechanical disruption methods. This method helps in the preferential growth of keratinocytes over other skin cell types using a selective growth medium.
04:07
Genetic Modification of Primary Human Keratinocytes: A Method for Genetically Manipulating Keratinocytes Using Recombinant Retroviruses
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2023
This video describes a detailed protocol for producing genetically modified primary human keratinocytes recombinant retrovirus. This method can be used to manipulate gene expression in keratinocytes.
06:44
Keratinocyte Colony Formation Assay: An In Vitro Assay to Assess the Ability of Keratinocytes to Grow into Colonies
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2023
In this video, we perform a clonogenic assay of keratinocytes harvested from adult mice to determine the ability of individual cells to proliferate and form colonies. This keratinocyte harvesting technique is useful for studying other downstream aspects of cutaneous chemical carcinogenesis and tumor promotion.
06:28
Isolation and Culture of Primary Oral Keratinocytes from the Adult Mouse Palate
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Cited by 3 •
2021
The present protocol describes the isolation and culture of oral keratinocytes derived from the adult mouse palate. An evaluation method using immunostaining is also reported.
FAQs
Asymmetric division produces daughter cells with different developmental outcomes. One can remain associated with the basal compartment, while another moves upward and enters the differentiation pathway. As upward-moving cells accumulate keratin, this division pattern connects continued production at the epidermal base with the formation of mature surface layers, helping replace cells lost during normal turnover.
Specialized adhesion structures anchor basal keratinocytes to the basement membrane and help maintain their position within the epidermis. This attachment provides an organized foundation for cell division and upward movement of daughter cells. Changes in adhesion can therefore influence how cells remain in the basal layer, migrate, and contribute to epidermal organization.
Basal keratinocytes participate in signaling interactions with neighboring melanocytes, immune cells, and tissues beneath the epidermis. These communications help coordinate skin homeostasis, meaning the maintenance of balanced tissue function. Their behavior therefore depends not only on intrinsic division and differentiation but also on signals from the surrounding skin environment.
Following injury, basal keratinocytes increase both proliferation and migration. Producing more cells helps restore tissue, while movement toward the damaged region supports coverage of the wound. Studying these coordinated responses shows how normal epidermal renewal mechanisms are adjusted during repair and helps distinguish regenerative behavior from processes occurring during steady-state maintenance.
Analysis of these cells can clarify how epidermal renewal and differentiation contribute to the skin’s protective barrier. It can also help explain barrier dysfunction when cell behavior or communication is disturbed. This makes basal keratinocytes useful for connecting events at the deepest epidermal layer with changes observed in the mature surface layers.
Their proliferation, migration, differentiation, adhesion, and signaling relationships all affect epidermal homeostasis. Disruption of these processes may contribute to inflammatory disease or abnormal growth associated with skin cancers. Research on basal keratinocytes therefore provides a cellular framework for examining how altered regulation in the epidermis relates to disease development and tissue behavior.