Immortalized Human Epidermal Keratinocytes (SIK)

Mfr.No.	T0770
Description	The Immortalized Human Epidermal Keratinocytes (SIK) were derived from a sample of human foreskin?and the serial cultivation of keratinocytes led to its spontaneous immortalization. The immortalized cells resemble normal human epidermal colonies but with dramatically increased levels of cell cycle regulatory proteins such as cyclin A. Treatment of the Immortalized Human Epidermal Keratinocytes (SIK) with either TGF-f or TPA were highly effective in preventing growth in low calcium medium which is similar to normal keratinocytes. Telomerase activity in the immortalized cells is stimulated approximately 5-fold by cultivation in the presence of epidermal growth factor (EGF). The Immortalized Human Epidermal Keratinocytes (SIK) is useful in studies focusing on dermatology particularly in skin carcinogenesis as telomerase activation in human skin has been found to be associated with exposure to ultraviolet radiation.
Cell Type	Immortalized Cells
Biosafety Level	2
Depositor	University of California, Davis
Disclaimer	1. All test parameters provided in the CoA are conducted using abm's standardized culture system and procedures. The stated values may vary under the end-user's culture conditions. Please verify that the product is suitable for your studies by referencing published papers or ordering RNA (0.5 ?g, Cat.# C207, $450.00) or cell lysate (100 ?g, Cat.# C206, $600.00) to perform preliminary experiments, or alternatively use our Gene Expression Assay Service (Cat# C138). All sales are final. 2. We recommend live cell shipments for ease of cell transfer and this option can be requested at the time of ordering. Please note that the end-user will need to evaluate the feasibility of live cell shipment by taking into account the final destination's temperature variation and its geographical location. In addition, we thoroughly test our cell lines for freeze-thaw recovery. If frozen cells were received and not recovered in your lab under the exact, specified conditions (using recommended culture vessel, media, additional supplements, and atmospheric conditions), a live cell replacement is possible at a cost (plus shipping). 3. All of abm's cell biology products are for research use ONLY and NOT for therapeutic/diagnostic applications. abm is not liable for any repercussions arising from the use of its cell biology product(s) in therapeutic/diagnostic application(s). Please contact a technical service representative for more information. 4. abm makes no warranties or representations as to the accuracy of the information on this site. Citations from literature and provided for informational purposes only. abm does not warrant that such information has been shown to be accurate. 5. abm warrants that cell lines shall be viable upon initiation of culture for a period of thirty (30) days after shipment and that they shall meet the specifications on the applicable abm Material Product Information sheet, certificate of analysis, and/or catalog description. Such thirty (30) day period is referred to herein as the "Warranty Period."
Donor History	Male
Expression Level	PAX8, CK7
Growth Properties	Adherent, polygonal
Growth Conditions	PriCoat?T25 Flasks (G299) or Applied Cell Extracellular Matrix (G422) are recommended for optimal cell culture. PriGrow X Series Medium (TM0770), 37.0?, 5% CO?.
Quantity	1x106 cells / 1.0 ml
Tissue	Skin
Morphology	Epithelial
Notes	1. Visually examine the packaging containers for signs of leakage or breakage. 2. Immediately transfer frozen cells from dry ice packaging to a temperature below -130?, preferably in liquid nitrogen vapor phase storage, until ready for use.To ensure the highest level of viability, thaw the vial and initiate culture as soon as possible upon receipt. If continued storage is desired, the vial should only be stored below -130? or in liquid nitrogen vapor phase. Do not store at -70?, as it will result in loss of viability.
Organism	Human (H. sapiens)
Population Doubling	90 - 100 hours
Species	Human (H. sapiens)
Propagation	Use of PriCoatTM T25 Flasks (G299) or Applied Cell Extracellular Matrix (G422) is required for cell adhesion to the culture vessels. Grow cells in ECM-coated culture vessels unless otherwise specified in the Propagation Requirements below.The base medium for this cell line is a 1:1 mix of Prigrow III medium and Prigrow XII medium, available at abm, Cat. No.'s TM003 and TM012. To make the complete growth medium, add the following components to the base medium: Ultroser G (Pall)* to a final concentration of 2% and Penicillin/Streptomycin Solution (G255) to a final concentration of 1%.Change media every 2-3 days.Carbon dioxide (CO2): 5%, Temperature: 37.0°C.* Do not use FBS for cell culture as it can induce phenotypic changes.
Cryopreservation	Cryopreservation Medium (TM024), or complete growth media with 10% DMSO.
Quality Control	1) Western blot; 2) Immunofluorescent staining; 3) real-time qPCR; 4) Proliferation assay; 5) Clonogenic assay; 6) Anchorage-independent growth assay; 7) Tumourigenic assay; 8) Immunohistochemistry; 9) Array comparative genomic hybridization (aCGH)

Applications Range	Research Use Only.

Shipping	Ship with dry ice.
Product Format	Frozen
Product Use	This product is intended for laboratory research use only. It is not intended for any animal or human therapeutic use, any human or animal consumption, or any diagnostic use.
Storage	Vapor phase of liquid nitrogen, or below -130?.

Thawing Protocol	1. Thaw cells quickly in a 37? water bath while agitating gently (maximum 2 minutes). The vial cap should be kept above the water level to minimize the risk of contamination. 2. Decontaminate the vial by spraying and wiping the exterior of the vial with 70% ethanol. From this point onwards, all operations should be strictly carried out inside a biological safety cabinet using aseptic conditions. 3. Transfer the cell suspension into a 15ml sterile conical tube containing 5ml of pre-warmed, complete growth media. Centrifuge cells at 125xg for 5-7 minutes. 4. Aspirate the supernatant without disturbing the cell pellet. Re-suspend the cell pellet in the recommended pre-warmed, complete growth media and dispense into a T25 culture flask. 5. Incubate the cells at the recommended conditions.
Subculture Protocol	Volumes given below are for a T75 flask; proportionally increase or decrease the volume as required per culture vessel size. Subculture cells once the culture vessel is 80% confluent. 1. Aspirate the culture media, and add 2-3ml of pre-warmed 0.25% Trypsin-EDTA to the culture vessel. 2. Observe the cells under a microscope to confirm detachment (typically within 2-10 minutes). Cells that are difficult to detach can be put in 37?, for several minutes to facilitate detachment. 3. Neutralize Trypsin-EDTA by adding an equal volume of the complete growth media into the culture vessel. 4. Transfer the culture suspension into a sterile centrifuge tube, and centrifuge at 125xg for 5 minutes. The actual centrifuge duration and speed may vary depending on the cell type. 5. Aspirate the supernatant, and re-suspend the pellet with pre-warmed fresh complete growth media. Add appropriate aliquots of the cell suspension to new culture vessels, as desired. 6. Incubate the cells at the recommended conditions.

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SKU	Supplier No.	Size	Your price	Quantity
BHC10900532	T0770	1x10^6 cells / 1.0 ml	-		Add to Quote

Immortalized Human Epidermal Keratinocytes (SIK)

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