Description

Hair follicles are self-renewing structures that cycle and reconstitute themselves throughout life because they contain keratinocyte stem cells [1]. The interplay between keratinocytes and underlying mesenchyme are critical for hair follicle morphogenesis and cycling. Several key developmental pathways are involved in determining follicular keratinocyte fate as well as the differentiation into several distinct cellular layers of the follicle during the growth phase of hair [2]. Studies indicate that follicular keratinocytes are distinct from epidermal keratinocytes in proliferative capacity and CD34 expression [3].

HHFK from ScienCell Research Laboratories are isolated from human hair follicles. HHFK are cryopreserved on primary culture and delivered frozen. Each vial contains >5 x 10^5 cells in 1 ml volume. HHFK are characterized by immunofluorescent method with antibodies to cytokeratines. HHFK are negative for HIV-1, HBV, HCV, mycoplasma, bacteria, yeast and fungi. HHFK are guaranteed to further expand for 15 population doublings in the condition provided by ScienCell Research Laboratories.

Recommended Medium

It is recommended to use Keratinocyte Medium (KM, Cat. No. 2101) for the culturing of HHFK in vitro.

Product Use

HHFK are for research use only. It is not approved for human or animal use, or for application in in vitro diagnostic procedures.

Storage

Directly and immediately transfer cells from dry ice to liquid nitrogen upon receiving and keep the cells in liquid nitrogen until cell culture needed for experiments.

Shipping

Dry ice.

Reference

[1] Eckert, R. L., Efimova, T., Dashti, S. R., Balasubramanian, S., Deucher, A., Crish, J. F., Sturniolo, M. and Bone, F. (2002) Keratinocyte survival, differentiation, and death: many roads lead to mitogen-activated protein kinase. J Investig Dermatol Symp Proc 7(1):36-40.
[2] Song, P. I., Park, Y. M., Abraham, T., Harten, B., Zivony, A., Neparidze, N., Armstrong, C. A. and Ansel, J. C. (2002) Human keratinocytes express functional CD14 and toll-like receptor 4. J Invest Dermatol 119(2):424-32.
[3] de Panfilis, G., Semenza, D., Lavazza, A., Mulder, A. A., Mommaas, A. M. and Pasolini, G. (2002) Keratinocytes constitutively express the CD95 ligand molecule on the plasma membrane: an in situ immunoelectron microscopy study on ultracryosections of normal human skin. Br J Dermatol. 147(1):7-12.