Huma'n Primary Chondrocytes

Cat. No.

T0020

Unit

5x10⁵ cells / 1.0 ml

Price

Inquiry

Specifications

Description	Chondrocytes in vivo produce and maintain the extracellular matrix of the cartilage. In vitro, chondrocytes after serial passages as a monolayer culture have been documented to lose their phenotypic markers and become de-differentiated. Re-differentiation can be induced by culturing the cells in a 3-D culture system. These cells are useful in studying chondrocyte differentiation and effects of cytokines and growth factors on the maintenance of differentiated phenotype.
Cat. No.	T0020
Name	Huma'n Primary Chondrocytes
Unit	5x10⁵ cells / 1.0 ml
Price	Inquiry
Category	Primary Cells
Cell Type	Primary Cells
Organism	Human (H. sapiens)
Tissue	Cartilage
Donor Disease	Normal
Donor History	Normal tissue
Cell Morphology	Multipolar
Growth Properties	Adherent, multipolar
Seeding Density (cells/cm²)	10,000 - 20,000
Propagation Method	Use of PriCoat^TMT25 Flasks (G299) or Applied Cell Extracellular Matrix (G422) is required for cell adhesion to the culture vessels. Grow cells inECM-coated culture vessels unless otherwise specified in the Propagation Requirements below. The base medium for this cell line is <strong>abm</strong>, Cat. No. <a href="/prigrow-x-series-medium-for-t0020-cell-line-tm0020.html#T0020">TM0020</a>.<br>Change media every 2-3 days.<br>Carbon dioxide (CO<sub>2</sub>): 5%, Temperature: 37.0°C.
Growth Conditions	Use of PriCoat™ T25 Flasks (G299) or Applied Cell Extracellular Matrix (G422) is required for cell adhesion to the culture vessels. PriGrow X Series Medium (TM0020) + 1% Penicillin/Streptomycin Solution (G255), 37.0°C, 5% CO₂.
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°C, 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.
Application	Research Use Only.
Storage Condition	Vapor phase of liquid nitrogen, or below -130°C.
BioSafety	II
Disclaimer	1. 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 or any other non-RUO application(s). 2. abm makes no warranties or representations as to the accuracy of the information on this site. Citations from literature are provided for informational purposes only. abm does not warrant that such information has been shown to be accurate. 3. abm warrants that cells 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".

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Supporting Protocol

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STR

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FAQs

	I want to make sure these cells express my gene of interest before I decide to buy the cell line. Can you provide a sample so this can be tested?
	We do not perform extensive downstream characterization, or gene expression profiling of our cell lines. However, you can check the ‘References’ tab to see if a publication is available, or you can contact us to see if RNA or cell lysates are available for your cell line of interest. Please directly contact us for further information at quotes@abmgood.com.

	Does abm's PriGrow series medium contain antibiotics?
	No, the medium does not contain antibiotics and needs to be supplemented by the end-user as desired.

	Do I need to use abm's media and Applied Cell Extracellular Matrix (G422) to culture my cells?
	We strongly encourage using the recommended media and culture conditions described in the "Growth Conditions" section as they have been optimized for cell growth. Other supplier's media and coating conditions have not been tested.

	What is the difference between Applied Cell Extracellular Matrix (G422) and Collagen Coating?
	The main component of our Applied Cell Extracellular Matrix (G422) is type I collagen specifically. For more information on abm's Applied Cell Extracellular Matrix please visit: http://www.abmgood.com/Applied-Cell-Extracellular-Matrix-G422.html.

	Do I have to use T25 ECM-coated flasks for growing the cells?
	We strongly recommend thawing cells in the T25 flasks specified on the cell-specific product page to ensure optimal post-thaw recovery of the frozen cells before testing other culture vessels.

	If I want to plate these cells to multi-well plates (e.g. 96 well plates) or dishes, how should I prepare the plates?
	For a protocol on how to coat plates and dishes with Applied Cell Extracellular Matrix (Cat. No. G422), please download the “Applied Cell Extracellular Matrix Data Sheet” from here.

	What percentage of Trypsin-EDTA should be used to subculture cells? Can I use Trypsin-EDTA containing phenol red?
	The standard concentration used for subculturing is 0.25% Trypsin-EDTA, available at abm (Cat. No. TM050). Yes, Trypsin-EDTA containing phenol red can be used as it does not interfere with trypsinization.

	How often do I need to change the media?
	Media should be changed every 2-3 days or as specified within the recommended growth conditions.

Why are these cells classified as biosafety level II?

We follow the CDC-NIH recommendations that all mammalian sourced products should be handled at the Biological Safety Level 2 to minimize exposure of potentially infectious products. This information can be found in 'Biosafety in Microbiological and Biomedical Laboratories' (1999). Your institution's Safety Officer or Technical Services will be able to make the call as to whether BioSafety Level I is possible with these cells at your site, if desired.

	How long can I store frozen vials?
	Cells that are properly frozen using an effective cryoprotective agent can be stored in liquid nitrogen vapor phase (or below -130°C) indefinitely without affecting viability.

What is the recommended storage temperature for cells?

In general, if you received:

Live cells: acclimatize for 3-5 hours at the recommended temperature and CO2 conditions stated for the cell line under the Growth Conditions section, and then change media afterwards. For more information on how to handle live cells, please view our detailed instructions here (https://www.abmgood.com/uploads/document/Cell_Handling_Instructions_Upon_Arrival_150623.pdf).
Frozen cells: Upon receipt, immediately place cells in liquid nitrogen; or below -130°C.

	Can I substitute heat-inactivated FBS with FBS or vice versa?
	FBS and heat-inactivated FBS are different in their composition; they cannot be substituted for one another.

My cells are not detaching, what method do you recommend to trypsinize the cells?

Gently wash adherent cells with PBS (1X, without calcium or magnesium) to remove trypsin inhibitors before adding the trypsinization agent.
Ensure the correct trypsin concentration is being used (i.e. 0.25%).
Do not use cold trypsin to detach cells as the proteolytic activity will be low. Pre-warm trypsin to 37°C for optimal enzymatic activity.
Incubate the cells with trypsin-edta agent at 37°C to facilitate cell detachment.
Gently tap the side of the culture vessel to facilitate mechanical detachment.

How are live cells shipped?

Live cells are shipped as a live culture in a T12.5 flask. Cells are seeded at an optimal confluency to avoid metabolic waste build up during transport. In addition, we thoroughly test our cell lines for functional freeze-thaw recovery. For more information on how to handle live cells, please view our detailed instructions here (https://www.abmgood.com/uploads/document/Cell_Handling_Instructions_Upon_Arrival_150623.pdf).

	Why are cells not attaching and forming clumps after subculturing with trypsin?
	Cells form clumps and display attachment issues when the trypsinization agent is not effectively neutralized. To completely neutralize the trypsin agent, add an equal amount of complete growth media prior to centrifugation. Subtle changes in culture conditions, particularly in pH and the quality of serum used in the growth medium, may also affect the amount of clumping exhibited by the cells.

	Why are my cells forming clumps after plating?
	It is important to ensure cell clumps are broken up through gentle re-suspension by pipetting up and down several times after pelleting cells by centrifugation. This will ensure a homogenous single cell suspension for even plating.

	Do I need to add the selection drug to the complete growth medium?
	We recommend maintaining selection pressure using the drug concentration specified in the Growth Conditions section.

	Where can I find the CoA for my product?
	Certificates of analysis can be found here (https://www.abmgood.com/CoA-Library.html).

References

Kim, B.S. et al. "Human collagen-based multilayer scaffolds for tendon-to-bone interface tissue engineering" Journal of Biomedical Materials Research Part A 102(11):4044-4055 (2014). DOI: 10.1002/jbm.a.35057. PubMed: 24327550.

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