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MM.1S

CRL-2974

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MM.1S is a B lymphoblast cell that was isolated from the peripheral blood of a Black, 42-year-old, female patient with immunoglobulin A lambda myeloma. This cell line was deposited by S. Rosen.
Product category
Human cells
Organism
Homo sapiens, human
Cell type
B lymphoblast
Morphology
lymphoblast
Tissue
Peripheral blood
Disease
Immunoglobulin A Lambda Myeloma
Applications
3D cell culture
Immune system disorder research
Immunology
Product format
Frozen
Storage conditions
Vapor phase of liquid nitrogen
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Documentation

ATCC determines the biosafety level of a material based on our risk assessment as guided by the current edition of Biosafety in Microbiological and Biomedical Laboratories (BMBL), U.S. Department of Health and Human Services. It is your responsibility to understand the hazards associated with the material per your organization’s policies and procedures as well as any other applicable regulations as enforced by your local or national agencies.

ATCC highly recommends that appropriate personal protective equipment is always used when handling vials. For cultures that require storage in liquid nitrogen, it is important to note that some vials may leak when submersed in liquid nitrogen and will slowly fill with liquid nitrogen. Upon thawing, the conversion of the liquid nitrogen back to its gas phase may result in the vial exploding or blowing off its cap with dangerous force creating flying debris. Unless necessary, ATCC recommends that these cultures be stored in the vapor phase of liquid nitrogen rather than submersed in liquid nitrogen.

Required Products

These products are vital for the proper use of this item and have been confirmed as effective in supporting functionality. If you use alternative products, the quality and effectiveness of the item may be affected.

Detailed product information

General

Specific applications
Together, CRL-2974 and CRL-2975 provide critical information about disease progression and the development of drug resistance. These cell lines represent valuable tools for elucidating the mechanisms of action of glucocorticoids and the development of new therapeutics.

Characteristics

Growth properties
Mixed: suspension with some loosely adherent cells
Derivation
The parent cell line, MM.1, was established from peripheral blood of a multiple myeloma patient who had become resistant to steroid-based therapy. The closely related cell line, MM.1R (ATCC CRL-2975) was also isolated from MM.1, but is resistant to dexamethasone.
Age
42 years
Ethnicity
Black
Gender
Female
Antigen expression
CD25+, CD38+, CD52+, CD59+
Genes expressed
lambda-light chain immunoglobulin
Expression markers
Glucocorticoid receptor, expressed
Comments

MM.1S is sensitive to dexamethasone. 


Handling information

Unpacking and storage instructions
  1. Check all containers for leakage or breakage.
  2. Remove the frozen cells from the dry ice packaging and immediately place the cells at a temperature below ­-130°C, preferably in liquid nitrogen vapor, until ready for use.
Complete medium
The base medium for this cell line is ATCC-formulated RPMI-1640 Medium, ATCC 30-2001. To make the complete growth medium, add the following components to the base medium: fetal bovine serum (ATCC 30-2020) to a final concentration of 10%.
Temperature
37°C
Atmosphere
95% Air, 5% CO2
Handling procedure
To insure the highest level of viability, thaw the vial and initiate the culture as soon as possible upon receipt. If upon arrival, continued storage of the frozen culture is necessary, it should be stored in liquid nitrogen vapor phase and not at -70°C.  Storage at -70°C will result in loss of viability.
  1. Thaw the vial by gentle agitation in a 37°C water bath. To reduce the possibility of contamination, keep the O-ring and cap out of the water.  Thawing should be rapid (approximately 2 minutes).
  2. Remove the vial from the water bath as soon as the contents are thawed, and decontaminate by dipping in or spraying with 70% ethanol. All of the operations from this point on should be carried out under strict aseptic conditions.
  3. Transfer the vial contents to a centrifuge tube containing 9.0 mL complete culture medium and spin at approximately 125 x g  for 5 to 7 minutes.
  4. Resuspend cell pellet with the recommended complete medium (see the specific batch information for the culture recommended dilution ratio) and dispense into a new culture flask.  It is important to avoid excessive alkalinity of the medium during recovery of the cells.  It is suggested that, prior to the addition of the vial contents, the culture vessel containing the complete growth medium be placed into the incubator for at least 15 minutes to allow the medium to reach its normal pH (7.0 to 7.6).
  5. Incubate the culture at 37°C in a suitable incubator.  A 5% CO2 in air atmosphere is recommended if using the medium described on this product sheet.
Subculturing procedure

This is a mixed cell culture; cells grow both as a lightly attached monolayer and in suspension. Cultures can be maintained by adding fresh medium. Alternatively, subcultures can be prepared by scraping the adherent cells into the medium containing the floating cells, collecting the cells by centrifugation, resuspending the cell pellet in fresh medium and dispensing into new flasks. Corning® T-75 flasks (catalog #431464) are recommended for subculturing this product.

Note: Subculture cells before they reach confluence; cells in over-confluent cultures begin to form rosettes with necrotic centers.

Subcultivation ratio: A subcultivation ratio of 1:2 to 1:4 is recommended.

Medium renewal: Every 2 to 3 days
Reagents for cryopreservation
Complete growth medium supplemented with 10% (v/v) DMSO (ATCC 4-X)

Quality control specifications

Mycoplasma contamination
Not detected
Population doubling time
Approximately 72 hrs
STR profiling
Amelogenin: X
CSF1PO: 9,14
D13S317: 13
D16S539: 12
D5S818: 8,12
D7S820: 10,11
TH01: 7,8
TPOX: 8
vWA: 15,17
D3S1358: 16,17
D21S11: 29,30
D18S51: 11,16
Penta_E: 13,15
Penta_D: 2.2,9
D8S1179: 14
FGA: 20,24
D19S433: 13
D2S1338: 21,22

History

Depositors
S. Rosen
Year of origin
1986

Legal disclaimers

Intended 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.
Warranty

The product is provided 'AS IS' and the viability of ATCC® products is warranted for 30 days from the date of shipment, provided that the customer has stored and handled the product according to the information included on the product information sheet, website, and Certificate of Analysis. For living cultures, ATCC lists the media formulation and reagents that have been found to be effective for the product. While other unspecified media and reagents may also produce satisfactory results, a change in the ATCC and/or depositor-recommended protocols may affect the recovery, growth, and/or function of the product. If an alternative medium formulation or reagent is used, the ATCC warranty for viability is no longer valid.  Except as expressly set forth herein, no other warranties of any kind are provided, express or implied, including, but not limited to, any implied warranties of merchantability, fitness for a particular purpose, manufacture according to cGMP standards, typicality, safety, accuracy, and/or noninfringement.

Disclaimers

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. Any proposed commercial use is prohibited without a license from ATCC.

While ATCC uses reasonable efforts to include accurate and up-to-date information on this product sheet, ATCC makes no warranties or representations as to its accuracy. Citations from scientific literature and patents are provided for informational purposes only. ATCC does not warrant that such information has been confirmed to be accurate or complete and the customer bears the sole responsibility of confirming the accuracy and completeness of any such information.

This product is sent on the condition that the customer is responsible for and assumes all risk and responsibility in connection with the receipt, handling, storage, disposal, and use of the ATCC product including without limitation taking all appropriate safety and handling precautions to minimize health or environmental risk. As a condition of receiving the material, the customer agrees that any activity undertaken with the ATCC product and any progeny or modifications will be conducted in compliance with all applicable laws, regulations, and guidelines. This product is provided 'AS IS' with no representations or warranties whatsoever except as expressly set forth herein and in no event shall ATCC, its parents, subsidiaries, directors, officers, agents, employees, assigns, successors, and affiliates be liable for indirect, special, incidental, or consequential damages of any kind in connection with or arising out of the customer's use of the product. While reasonable effort is made to ensure authenticity and reliability of materials on deposit, ATCC is not liable for damages arising from the misidentification or misrepresentation of such materials.

Please see the material transfer agreement (MTA) for further details regarding the use of this product. The MTA is available at www.atcc.org.

Permits & Restrictions

Import Permit for the State of Hawaii

If shipping to the U.S. state of Hawaii, you must provide either an import permit or documentation stating that an import permit is not required. We cannot ship this item until we receive this documentation. Contact the Hawaii Department of Agriculture (HDOA), Plant Industry Division, Plant Quarantine Branch to determine if an import permit is required.

MORE INFORMATION ABOUT PERMITS AND RESTRICTIONS

Frequently Asked Questions

References

Curated Citations

Goldman-Leikin RE, et al. Characterization of a novel myeloma cell line, MM.1. J. Lab. Clin. Med. 113(3):335-345, 1989. PubMed: 2926241

Greenstein S, et al. Characterization of the MM.1 human multiple myeloma (MM) cell lines: A model system to elucidate the characteristics, behavior, and signaling of steroid-sensitive and -resistant MM cells. Exp. Hematol.: 31:271-282, 2003. PubMed; 12691914

Moalli PA, et al. A mechanism of resistance to glucocorticoids in multiple myeloma: transient expression of a truncated glucocorticoid receptor mRNA. Blood. 79:213-222, 1992. PubMed: 1728309

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