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CESS Cells

CESS Cells

Für die Verwendung dieses Produktes fordert der Hersteller das zu Ihrer Institution passende, ausgefüllte und unterschriebene Formular:

Profit Organisation/Nutzung: CLS_CLEAR.pdf
Non-Profit Organisation/Nutzung: Non_Profit_CLS_Supply_Agreement.pdf

Bitte laden Sie dieses entweder beim Kaufabschluss hoch oder senden es alternativ an die purchasing@hoelzel.de

Item no.	CLS-300262
Manufacturer	CLS Cell Lines Service
Amount	1 cryovial
Category	Cell Lines & Cell Culture Cell Lines
Type	Cell line
Certificate	For a certificate of analysis, please send an inquiry to info@hoelzel.de.
Specific against	Human (Homo sapiens)
Dry ice	Yes
ECLASS 10.1	42040401
ECLASS 11.0	42040401
UNSPSC	41106509
Alias	Cess
Available
Manufacturer - Applications	Establishment of human T hybridoma cell lines
Manufacturer - Category	Leukemia cell lines
Description	The CESS cell line is a B lymphoblastoid cell line derived from a human patient with leukemia. This cell line is commonly used to study immunoglobulin production, particularly IgG secretion, due to its strong response to cytokine stimulation. CESS cells are EBV-transformed and exhibit surface markers characteristic of mature B cells, such as CD19 and CD38. They express the sIgG1 class of immunoglobulins and serve as a model for studying B cell differentiation and function, including immune responses regulated by cytokines like interleukin-6 (IL-6), also known as B-cell stimulation factor 2 (BSF-2). IL-6 plays a crucial role in stimulating immunoglobulin production in CESS cells, making them a valuable model for investigating B cell responses in immunological research. Additionally, CESS cells have been instrumental in studies focusing on cell signaling and apoptosis. Notably, these cells have been shown to produce and respond to Nerve Growth Factor (NGF) through an autocrine signaling mechanism, expressing both high- and low-affinity NGF receptors. Blocking NGF signaling with antibodies or specific inhibitors induces apoptosis in CESS cells, characterized by Bcl-2 phosphorylation and activation of the p38 MAPK pathway. This makes CESS cells an important model for understanding the molecular mechanisms of B cell survival and apoptosis, particularly in the context of NGF signaling and its regulation of the Bcl-2 family proteins.
Tissue	Peripheral blood
Growth properties	Suspension
Disease	Acute myeloid leukemia
Gender	Male
Ethnicity	European
Morphology	Lymphoblast
Biosafety Level	1
Viruses	Transformed by EBV
Culture Medium	RPMI 1640, w: 2.1 mM stable Glutamine, w: 2.0 g/L NaHCO3 (Cytion article number 820700a)
Medium Supplements	Supplement the medium with 10% FBS
Subculturing	Remove the old medium from the adherent cells and wash them with PBS that lacks calcium and magnesium. For T25 flasks, use 3-5 ml of PBS, and for T75 flasks, use 5-10 ml. Then, cover the cells completely with Accutase, using 1-2 ml for T25 flasks and 2.5 ml for T75 flasks. Let the cells incubate at room temperature for 8-10 minutes to detach them. After incubation, gently mix the cells with 10 ml of medium to resuspend them, then centrifuge at 300xg for 3 minutes. Discard the supernatant, resuspend the cells in fresh medium, and transfer them into new flasks that already contain fresh medium.
Fluid Renewal	2 to 3 times per week
Freezing Recovery	After thawing, plate the cells at 5 x 10^4 cells/cm^2 and allow the cells to recover from the freezing process and to adhere for at least 24 hours.
Freeze Medium	CM-1 (Cytion catalog number 800100)
Handling of Cryopreserved Cultures	Confirm that the vial remains deeply frozen upon delivery, as cells are shipped on dry ice to maintain optimal temperatures during transit. Upon receipt, either store the cryovial immediately at temperatures below -150° C to ensure the preservation of cellular integrity, or proceed to step 3 if immediate culturing is required. For immediate culturing, swiftly thaw the vial by immersing it in a 37° C water bath with clean water and an antimicrobial agent, agitating gently for 40-60 seconds until a small ice clump remains. Perform all subsequent steps under sterile conditions in a flow hood, disinfecting the cryovial with 70% ethanol before opening. Carefully open the disinfected vial and transfer the cell suspension into a 15 ml centrifuge tube containing 8 ml of room-temperature culture medium, mixing gently. Centrifuge the mixture at 300 x g for 3 minutes to separate the cells and carefully discard the supernatant containing residual freezing medium. Gently resuspend the cell pellet in 10 ml of fresh culture medium. For adherent cells, divide the suspension between two T25 culture flasks; for suspension cultures, transfer all the medium into one T25 flask to promote effective cell interaction and growth. Adhere to established subculture protocols for continued growth and maintenance of the cell line, ensuring reliable experimental outcomes.
Sterility	Mycoplasma contamination is excluded using both PCR-based assays and luminescence-based mycoplasma detection methods. To ensure there is no bacterial, fungal, or yeast contamination, cell cultures are subjected to daily visual inspections.
Safety Precautions	When planning to store a cryovial in liquid nitrogen for future thawing, it is mandatory to adhere to stringent safety measures. Appropriate protective gloves and clothing are essential, and the use of a face mask or safety goggles is required during the transfer of frozen samples to or from the liquid nitrogen tank. This is to mitigate the risk of injury from potential cryovial explosions upon removal, which can result in the projection of sharp fragments.
Disclaimer	Our cells are provided for in vitro laboratory research purposes exclusively and are not intended for clinical or diagnostic use, nor are they to be administered to humans or used for veterinary purposes. Users must adhere to all applicable guidelines and regulations for the handling and use of these cells in a research setting.
Warranty	We stand by the promise of delivering products with high cell viability and robust culture performance. To achieve the best results, please make sure you follow the storage and culture instructions detailed in the product information sheet closely. Your adherence to these guidelines is key to success.
Amelogenin	X, Y
Seeding Density	1 x 10^4 cells/cm^2 is recommended
Products	IL-2 after induction with TRF (T cell-replacing factor)

Note: The presented information and documents (Manual, Product Datasheet, Safety Datasheet and Certificate of Analysis) correspond to our latest update and should serve for orientational purpose only. We do not guarantee the topicality. We would kindly ask you to make a request for specific requirements, if necessary.

All products are intended for research use only (RUO). Not for human, veterinary or therapeutic use.

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Amount: 1 cryovial

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Delivery expected until 10/30/2025

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