Foreskin Keratinocyte
Foreskin Keratinocyte Uses, Dosage, Side Effects, Food Interaction and all others data.
Skin, the largest organ of the human body, plays the main role in protecting the body from mechanical damage. It is composed of epidermal, dermal and hypodermal layers. The barrier function of the skin owed to its avascular epidermal layer, which is made mainly of keratinocytes. The keratinocytes form a stratified epithelium, with growing basal cells at the innermost layer and the keratinized, and mostly impermeable outer stratum corneum layer on the surface .
Foreskin keratinocytes are a form of skin cells that are cultured as a skin cell replacement for wounds, to accelerate wound closure and healing , .
The defining moment in skin culture was in 1975 when Rheinwald and Green successfully grew human keratinocytes on lethally irradiated murine fibroblasts. In 1981, O’Conner and his group utilized cultured autologous epithelium to coat burn defects for the first time. To construct a "living" alternative, a dermal substitute based on collagen I gel was created with mesenchymal cells such as fibroblasts. When an epidermal layer was added, this approach became known as "skin equivalent", "composite culture" or "organotypical culture" .
| Trade Name | Foreskin Keratinocyte |
| Generic | Foreskin keratinocyte (neonatal) |
| Foreskin keratinocyte (neonatal) Other Names | foreskin keratinocyte, neonatal |
| Type | |
| Groups | Approved |
| Therapeutic Class | |
| Manufacturer | |
| Available Country | |
| Last Updated: | September 19, 2023 at 7:00 am |
Uses
Foreskin Keratinocyte is a treatment of skin cells used to accelerate wound closure and healing.
For chronic leg ulcers and diabetic foot .
Orcel is indicated for use with standard therapeutic compression for the treatment of non-infected partial and full-thickness skin ulcers due to venous insufficiency of greater than 1 month in duration and which have not effectively responded to conventional ulcer therapy. Orcel is also for use with standard diabetic foot ulcer care for the treatment of full-thickness neuropathic diabetic foot ulcers of greater than 3 weeks in duration which have not effectively responded to conventional ulcer therapy, and which extend through the dermis but without tendon, muscle, capsule or bone involvement .
Foreskin Keratinocyte is also used to associated treatment for these conditions: Wound of the Oral Cavity
How Foreskin Keratinocyte works
Foreskin keratinocytes promote the proliferation of epithelial (skin) cells. Epidermal keratinocytes (skin cells) are very specialized epithelial cells designed for a very specific function, which is the separation of the organism from its outside environment. To provide this protection, the cells synthesize precursors and assemble them into two distinct structures, the cornified envelope and keratin intermediate filaments. The intermediate filaments are formed by keratin monomers and the cornified envelope is assembled from a protein called involucrin and several other proteins .
The following is a description of the mechanism of action of foreskin keratinocytes in various devices, while combined with other types of cells:
Orcel (epidermal keratinocytes and dermal fibroblasts) are cultured in two separate layers into a Type I bovine collagen sponge. Donor dermal fibroblasts are cultured on and within the porous sponge side of the collagen matrix while keratinocytes, from the same donor, are also cultured on the covered, non-porous side of the collagen matrix. Orcel acts as an absorbable matrix, providing a fertile environment for host cell migration and has been shown to contain the following cell-expressed cytokines with growth factors: FGF-1 (bFGF), NGF, GM-CSF, IL-1α, IL-1β, IL-6, HGF, KGF-1 (FGF- 7), M-CSF, PDGF-AB, TGF-α, TGF-β1, TGF-β2, and VEGF. DNA analysis performed on two Orcel treated donor site patient tissue samples demonstrated no trace of allogeneic cell DNA after 2-3 weeks post-treatment. Orcel is manufactured under aseptic conditions from human neonatal foreskin tissue .
Apligraf is supplied as a living, bi-layered skin substitute: the epidermal layer is formed by human keratinocytes and has a well-differentiated stratum corneum; the dermal layer is composed of human fibroblasts in a bovine Type I collagen lattice. While matrix proteins and cytokines found in human skin are present in Apligraf, Apligraf does not contain Langerhans cells, melanocytes, macrophages, lymphocytes, blood vessels or hair follicles. In a 10 patient venous leg ulcer study to determine the longevity of Apligraf cells, 2 of 8 patients evaluated at 4 weeks demonstrated Apligraf DNA. Neither of these patients showed Apligraf DNA at 8 weeks .
For dental applications, Gintuit (Allogeneic Cultured Keratinocytes and Fibroblasts in Bovine Collagen) is an allogeneic cellularized scaffold product indicated for topical application to a surgically created vascular wound bed in the treatment of mucogingival conditions in adults .
Toxicity
Adverse events in a preclinical study of about 300 subjects were classified as mild, moderate, severe or life-threatening. In the venous leg ulcer study, 1 life-threatening infection and 3 severe infections reported in the Apligraf group occurred, and none in the control group. Of the 4 events, 2 severe infections were related to treatment: however one occurred one month after the last application of Apligraf and the other occurred following application on a pre-existing Pseudomonas infection .
Food Interaction
No interactions found.Innovators Monograph
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