Related Experiment Videos
Epidermal keratinocytes express the adhesion molecule intercellular adhesion molecule-1 in inflammatory dermatoses
K H Singer1, D T Tuck, H A Sampson
1Department of Medicine, Duke University Medical Center, Durham, NC 27710.
The Journal of Investigative Dermatology
|May 1, 1989
Summary
Intercellular adhesion molecule-1 (ICAM-1) is upregulated on skin keratinocytes during inflammation, facilitating T cell binding. This molecule
Area of Science:
- Dermatology
- Immunology
- Cell Biology
Background:
- Intercellular adhesion molecule-1 (ICAM-1) plays a role in immune cell interactions.
- Understanding ICAM-1 expression in skin is crucial for inflammatory skin diseases.
Purpose of the Study:
- To investigate the expression pattern of ICAM-1 on epidermal keratinocytes in healthy and inflamed skin.
- To determine the relationship between ICAM-1 expression and cutaneous inflammation.
Main Methods:
- Indirect immunofluorescence assays on frozen skin tissue sections.
- Analysis of epidermal keratinocytes from healthy subjects and patients with inflammatory skin diseases.
Main Results:
- ICAM-1 was expressed on keratinocytes at sites of lymphoid infiltration in inflammatory skin conditions.
- ICAM-1 was not detected on keratinocytes in noninflamed skin.
- ICAM-1 expression was not solely due to epidermal hyperproliferation.
Conclusions:
- Upregulation of ICAM-1 on epidermal keratinocytes is a significant characteristic of cutaneous inflammation.
- ICAM-1 likely contributes to T cell recruitment and retention in inflamed skin.