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Charcoal stripped fbs css

Manufactured by Thermo Fisher Scientific

Charcoal stripped FBS (CSS) is a specialized serum product used in cell culture applications. It is prepared by treating fetal bovine serum (FBS) with activated charcoal to remove various components, including steroid hormones, growth factors, and other small molecules. This process results in a serum that is depleted of these substances, making it a useful tool for researchers studying the effects of these components on cell behavior and signaling pathways.

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2 protocols using charcoal stripped fbs css

1

Cell Culture Media and Reagents Procurement

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DMEM low glucose media, DMEM high glucose media, Hams’ F‐12 media, DMEM/F‐12 media (1:1), penicillin/streptomycin solution and phosphate buffered saline (PBS) were purchased from Invitrogen (Carlsbad, CA). The media additives d‐biotin, adenine hemisulfate, insulin solution, apo‐transferrin, and Nuclei EZ Prep kit were purchased from Sigma–Aldrich (St. Louis, MO). Fetal bovine serum (FBS) was obtained from HyClone (Logan, UT). Charcoal stripped FBS (CSS) was prepared within our laboratory or purchased from Invitrogen (Carlsbad, CA). Zapoglobin and Isoton II were purchased from Beckman Coulter Inc. (Fullerton, CA). Rabbit anti‐mouse IgG secondary antibody was obtained from Zymed Laboratories, Inc. Both horseradish peroxidase‐conjugated donkey anti‐rabbit and sheep anti‐mouse antibodies were purchased from GE Healthcare Biosciences (Pittsburg, PA). All tissue culture plasticware and additional chemicals were purchased from Fisher Scientific (Suwanee, GA).
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2

Unique Salivary Gland Tumor Cell Line

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The RET981 developed by our group, is the only cell line, currently available in the field. RET981 was derived from a female patient with metastatic poorly differentiated, mixed malignant tumor of salivary gland (38 (link)). We tested the STR analysis and indicated the unique profile without any contamination (Supplementary Figure 1). RET981 and LNCaP prostate cancer cell line (ATCC) were maintained in RPMI 1640 medium with 10% FBS. A253 salivary epidermoid carcinoma cell (ATCC) and VCaP prostate cancer cell line (ATCC) were cultured in DMEM medium with 10% FBS. For androgen treatment, cells were cultured in phenol red-free medium supplemented with 10% charcoal-stripped FBS (CSS) (Invitrogen) for 24 hours and then treated with or without 1nM DHT.
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