Keratinocytes


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Keratinocytes

Cells found in the epidermis. The keratinocytes at the outer surface of the epidermis are dead and form a tough protective layer. The cells underneath divide to replenish the supply.
Mentioned in: Ichthyosis, Skin Grafting

ker·a·tin·o·cytes

(keră-tinŏ-sīts)
Cells that produce keratin.
See also: keratin
References in periodicals archive ?
As they now show, Par3 is an important regulator of contractility of keratinocytes, which is required to maintain the accuracy of cell division events.
Melanin is transferred to keratinocytes and then agglutinated around the nucleus of the keratinocytes to form supra-nuclear structures.
Epidermal equivalents composed of keratinocytes were the first in vitro tool to be generated (O'Connor et al., 1981).
This also leads to keratinocytes proliferation and an increase of collagen production in epidermis (Chernoff et al., 2007; Oh and Kim, 2011).
PMLE heals without scarring but lacks necrotic keratinocytes (8).
Among the pathophysiological processes associated with keratinocytes, wound healing is a complex process involving the proliferation and migration of unwounded keratinocytes nearby (36).
The researchers first compared the levels of different proteins of the two cell types (inflammation and keratinocytes) to get a sense of what they'd need to change to reprogram the cells' identities.
STAT3 siRNA carried by Lipofectamine 3000 combined with ultrasonic irradiation and SonoVue microbubbles altered cell cycle distribution of psoriatic keratinocytes
It has been established that both antigen-specific CD4+ and CD8+ T cells, cytokines and chemokines secreted by local keratinocytes, and dedicated antigen-presenting cells mediate the death of keratinocytes and the related tissue damage.
For the stimulation of keratinocytes from skin biopsies, 8-10 x [10.sup.4] cells/[cm.sup.2] in 3 ml were seeded in 6-well plate and cultured in low [Ca.sup.2+] medium, with medium changes every two days.
Research has proven that smoking 1) causes a decrease in capillary blood flow to the skin caused by vasoconstriction, 2) releases an abundance of free radicals into the skin tissues, 3) increases keratinocyte dysplasia, 4) decreases keratinocyte migration, and 5) decreases the production of erythrocytes (red blood cells).
The different cells considered for skin TE include fibroblasts, keratinocytes, adipocytes, melanocytes hair-follicle associated cells and adipocytes derived stem cell [25].