Description: NZM7 is an adherent metastatic melanoma cell line derived from the cervical lymph node of a 36 year old male patient.

Description Key Words: Human metastatic melanoma from cervical lymph node 

Also Known As: No other names

Organism: Human (Homo sapiens) 

Tissue: Melanoma metastatic from cervical lymph node

Growth Properties: Adherent

Doubling Time: 49 hours

Morphology: Heterogeneous morphology with elongated cells

Growth Medium: This cell line was established by the depositor in: Alpha modified Minimum Essential Medium (MEM) supplemented with 5% Foetal Bovine Serum (FBS)”, 5 ug/ml Insulin, 5 ug/ml Transferrin, 5 ng/ml Sodium Selenite (ITS), in an atmosphere of 5%O₂, 5%CO₂ and 90%N_2.

At CellBank Australia it has been cultured in: Alpha modified Minimum Essential Medium (MEM) supplemented with 10% Foetal Bovine Serum (FBS)”, 5 ug/ml Insulin, 5 ug/ml Transferrin, 5 ng/ml Sodium Selenite (ITS), in an atmosphere of 5%CO₂.

Resuscitation: Remove protective cryoflex layer around the ampoule prior to thawing. Thaw the ampoule by gently agitating in a 37°C waterbath; thawing should be rapid (around 2 minutes). A centrifugation step to remove the cryoprotectant after thawing is necessary for this cell line. 

Subculturing Procedure:

Medium Renewal: 2-3 times per week.

Subcultivation Ratio: 1:4 – 1:8 Seeding density 1.3 x10⁴cells/cm². Split subconfluent cultures(70-80%). Harvest the cells using 0.05% Trypsin/EDTA at 37°C for 5 minutes.

Culture Conditions: Incubate the culture at 37°C with 5% CO₂.

Cryoprotectant Medium: 10% DMSO + 90% FCS

Handling Procedure for Frozen Cells: Upon receipt, frozen ampoules should be transferred directly to liquid nitrogen storage without delay, if not to be used immediately. Storage at -80°C may result in loss of viability.

Additional Information: 

_ Aneuploid 2.18x diploid 55-59 chromosomes per cell

_ Mutations:

• Wild-type for CDKN2A/B, PIK3CA, NRAS
• BRAF V600E mutation
• Heterogeneous for p53 mutation: some cells with p53 mutation 241S/P

_ Resistant to temozolomide

_ MGMT expressed

Depositor: Professor Bruce Baguley – The University of Auckland, New Zealand

Reference:

Original Reference:

Marshall ES, Matthews JHL, Shaw JHF, Nixon J, Tumewu P, Finlay GJ, Holdaway KM, Baguley BC.

Radiosensitivity testing of human melanoma cell lines: comparison of [³H]-thymidine incorporation and soft agar clonogenic assays.

Eur J Cancer 1994; 30A: 1370-1376.

PubMed 7999427

Cellosaurus: CVCL_D843