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Primary Normal Human Epidermal Melanocytes (NHEM) are isolated from the epidermis of juvenile foreskin or adult skin from different locations including the face, the breasts, the abdomen, and the thighs.
Melanocytes are located in the stratum basale, but branch out between the keratinocytes in suprabasal layers. About 5-10 % of the cells in the epidermis are melanocytes. The main purpose of melanocytes is the production of melanin, the protein responsible for the pigmentation of the skin, eyes, and hair. Melanin protects the cells in the skin and in deeper layers from the hazardous effects of UV radiation. It is produced and stored in melanosomes, which are located close to the melanocyte membrane, but it can also be transferred to neighboring keratinocytes.
PromoCell Normal Human Epidermal Melanocytes are isolated using the PMA (Phorbol Myristate Acetate)-containing Melanocyte Growth Medium. Since PMA is a tumor promoting mitogen, it can interfere with experimental approaches. Therefore, we recommend using cells isolated in Melanocyte Growth Medium M3.
NEW: Our NHEM are now also available from HLA-typed donors.
- Cryopreserved: Cryogenic vial containing 500.000 viable cells.
- Proliferating: >500.000 viable cells shipped in growth medium (T25 flask).
- Cell pellet: 1 million cells dissolved in 200µl RNAlater© for subsequent RNA, DNA or protein analysis. Cell pellets cannot be revived.
|Recommended plating density||5,000 – 10,000 cells per cm2|
|Passage After Thawing||P2|
|Tested Markers||Mel-5 positive|
|Guaranteed Population Doubling||> 15|