2 [Cells contain human HPV-18 viral DNA sequences]
Biosafety classification is based on U.S. Public Health Service Guidelines, it is the responsibility of the customer to ensure that their facilities comply with biosafety regulations for their own country.
Disease
normal
Age
54 years
Gender
male
Ethnicity
Caucasian, White
Storage Conditions
liquid nitrogen vapor phase
Karyotype
The depositor reports that at passage 44, a majority of the cells were near diploid, 45-47, X, -Y. Loss of Y chromosome has been observed in prostate cancer.
Images
Derivation
WPE1-NB14 cells were derived from RWPE-1 cells (ATCC CRL-11609) after exposure to N-methyl-N-nitrosourea (MNU) RefWebber MM, et al. Human cell lines as an in vitro/in vivo model for prostate carcinogenesis and progression. Prostate 47: 1-13, 2001. PubMed: 11304724. Epithelial cells from the peripheral zone of a histologically normal adult human prostate were transfected with a plasmid carrying one copy of the human papilloma virus 18 (HPV-18) genome to establish the RWPE-1 cell line (ATCC CRL-11609).
Clinical Data
54 years
Caucasian
male
Antigen Expression
kallikrein 3, KLK3 (prostate specific antigen, PSA); Homo sapiens, expressed (upon exposure to androgen)
RefWebber MM, et al. Human cell lines as an in vitro/in vivo model for prostate carcinogenesis and progression. Prostate 47: 1-13, 2001. PubMed: 11304724(upon exposure to androgen)
Receptor Expression
androgen receptor, expressed
RefWebber MM, et al. Human cell lines as an in vitro/in vivo model for prostate carcinogenesis and progression. Prostate 47: 1-13, 2001. PubMed: 11304724(upregulated upon exposure to androgen)
Cellular Products
cytokeratin 18
RefWebber MM, et al. Human cell lines as an in vitro/in vivo model for prostate carcinogenesis and progression. Prostate 47: 1-13, 2001. PubMed: 11304724
cytokeratin 8
RefWebber MM, et al. Human cell lines as an in vitro/in vivo model for prostate carcinogenesis and progression. Prostate 47: 1-13, 2001. PubMed: 11304724
Tumorigenic
Yes
Effects
Yes, in nude mice RefWebber MM, et al. Human cell lines as an in vitro/in vivo model for prostate carcinogenesis and progression. Prostate 47: 1-13, 2001. PubMed: 11304724
Yes, the cells form colonies in soft agar (moderate efficiency) RefWebber MM, et al. Human cell lines as an in vitro/in vivo model for prostate carcinogenesis and progression. Prostate 47: 1-13, 2001. PubMed: 11304724
Comments
WPE1-NB14 cells belong to a family of cell lines, referred to as the MNU cell lines, which are all derived from RWPE-1 cells after exposure to MNU. The larger family of cell lines, including RWPE-1 cells with a common lineage, mimics multiple steps in progression from normal epithelium to prostatic intra-epithelial neoplasia, and then to invasive cancer. The MNU cell lines, in order of increasing malignancy are: WPE1-NA22 (ATCC CRL-2849), WPE1-NB14 (ATCC CRL-2850), WPE1-NB11 (ATCC CRL-2851), and WPE1-NB26 (ATCC CRL-2852).
WPE1-NB14 cells show moderate invasive ability in the in vitro Boyden chamber invasion assay RefWebber MM, et al. Human cell lines as an in vitro/in vivo model for prostate carcinogenesis and progression. Prostate 47: 1-13, 2001. PubMed: 11304724.
The colony forming efficiency (CFE) of 1.85% and the invasive ability of WPE1-NB14 cells are both greater than those of WPE1-NA22 cells (ATCC CRL-2849) RefWebber MM, et al. Human cell lines as an in vitro/in vivo model for prostate carcinogenesis and progression. Prostate 47: 1-13, 2001. PubMed: 11304724.
The cells form small tumors after subcutaneous injection. The tumors are a little larger than those formed by WPE1-NA22 cells (ATCC CRL-2849).
The depositor report that the parent RWPE-1 cell line (ATCC CRL-11609) was screened for Hepatitis B and C, and human immunodeficiency viruses, and was found to be negative.
Complete Growth Medium
The base medium for this cell line is provided by Invitrogen (GIBCO) as part of a kit: Keratinocyte Serum Free Medium (K-SFM), Kit Catalog Number 17005-042. This kit is supplied with each of the two additives required to grow this cell line (bovine pituitary extract (BPE) and human recombinant epidermal growth factor (EGF).
To make the complete growth medium, you will need to add the following components to the base medium:
0.05 mg/ml BPE - provided with the K-SFM kit
5 ng/ml EGF - provided with the K-SFM kit.
NOTE: Do not filter complete medium.
Subculturing
Volumes used in this protocol are for 75 cm2 flask; proportionally reduce or increase amount of dissociation medium for culture vessels of other sizes. Note:Subculture cells before they reach confluence. Do not allow cells to become confluent.
Remove and discard culture medium.
Briefly rinse the cell layer with Ca++/Mg++ free Dulbecco's phosphate-buffered saline (D-PBS).
Add 2.0 to 3.0 mL (to a T-25 flask) or 3.0 to 4.0 ml (to a T-75 flask) of 0.05% Trypsin - 0.53 mM EDTA solution, diluted 1:1 with D-PBS, and place flask in a 37°C incubator for 5 to 8 minutes. Observe cells under an inverted microscope until cell layer is dispersed (usually within 5 to 10 minutes).
Note: To avoid clumping do not agitate the cells by hitting or shaking the flask while waiting for the cells to detach.
Add 6.0 to 8.0 mL of 0.1% Soybean Trypsin Inhibitor (or 2% fetal bovine serum in D-PBS), as appropriate, and aspirate cells by gently pipetting.
Transfer cell suspension to centrifuge tube and spin at approximately 125 x g for 5 to 7 minutes.
Discard supernatant and resuspend cells in fresh serum-free growth medium. Add appropriate aliquots of cell suspension to new culture vessels. An inoculum of 2 x 104 to 4 x 104 viable cells/cm2 is recommended.
Incubate cultures at 37°C. We recommend that you maintain cultures at a cell concentration between 4 x 103 and 8 x 104 cells/cm2.
Note: Cells grown under serum-free or reduced serum conditions may not attach strongly during the 24 hours after subculture and should be disturbed as little as possible during that period.
Subcultivation Ratio: A subcultivation ratio of 1:3 to 1:5 is recommended
Medium Renewal: Every 48 hours
Note: For more information on enzymatic dissociation and subculturing of cell lines consult Chapter 10 in Culture of Animal Cells, a Manual of Basic Technique by R. Ian Freshney, 3rd edition, published by Alan R. Liss, N.Y., 1994.
Cryopreservation
Complete growth medium supplemented with 15% fetal bovine serum and 10% (v/v) DMSO. Cell culture tested DMSO is available as ATCC® Catalog No. 4-X.
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