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The CRL1213 is a laboratory equipment product used for cell culture applications. It is designed to provide a controlled and regulated environment for the growth and maintenance of cells. The CRL1213 offers temperature, humidity, and gas (CO2) control to support optimal cell culture conditions.

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7 protocols using crl1213

1

Cell Culture Conditions for Fibroblasts

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Rat skin fibroblast FR (ATCC® CRL1213™) used in these experiments were cultured in complete growth medium containing Eagle’s Minimum Essential Medium (ATCC®), and 10 % fetal bovine serum (FBS) at 37°C in an atmosphere of 5% CO2 and 95% air. This cell line was used in all experiments except the microsomal assay. Mouse embryonic fibroblast cells (NIH/3T3 ATCC® CRL-1658™) used in these experiments were cultured in the complete growth medium containing Eagle’s Minimum Essential Medium (ATCC®), and 10% fetal bovine serum (FBS) at 37°C in an atmosphere of 5% CO2 and 95% air. This cell line was used in the microsomal assay.
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2

Assessing Fibroblast Cell Cycle by Flow Cytometry

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Rat fibroblasts FR (ATCC® CRL1213™) were plated at 30% confluency in 6 well plates and allowed to attach overnight. DON was added at the IC50 concentration of 232.5 μM as determined by the CyQUANT® Cell Proliferation Assay (Molecular Probes) for 2 hours in serum free media and then 10% Cosmic Calf™ Serum (Thermo Hyclone) was added. Cells were incubated at 37°C with 5% CO2. After 48 hours incubation, cells were fixed in 50% ethyl alcohol solution and stored at 4°C for up to a week. After fixation, pelleted cells were suspended and labeled with propidium iodide (25μg/mL) in phosphate buffered saline (PBS), pH 7.4, containing 0.1% Triton X-100, 1mg/ml sodium citrate, and 100μg/mL RNase A. Cells were incubated for 30 minutes at 37°C. Cells were subjected to flow cytometry using a side scatter plot versus fluorescence (535nm excitation/617nm emission).
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3

Evaluation of Anti-Cancer Agents in Fibroblasts

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Clear 96-well plates were seeded with FR (ATCC® CRL1213™) rat fibroblasts at 2 × 104 cells/ml. On day 4, complete growth media was aspirated, and 100 μl of the following treatments were added: 0, 2, 20, or 200 μM concentrations of 6-diazo-5-oxo-l-norleucine and 6 μMcamptothecin in OptiMem (Invitrogen) 3% FBS. After 48 hours incubation, the treatments were aspirated and 10 μL of 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) was added to each well. The plates were incubated for 2 hours at 37°C, 95% air and 5% CO2, until purple dye was visible. Detergent (sodium dodecyl sulfate) 100 μL was added to each well and the plates were covered in aluminum foil and incubated in a dark area for 2 hours at room temperature. Absorbance and fluorescence were read at 485nm excitation/535nm emission. Results were obtained using a Multimode Detector DTX 880 (Beckman Coulter).
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4

Cell Proliferation Assay of Rat Fibroblasts

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Cell proliferation was analyzed using CyQUANT® Cell Proliferation Assay (Molecular Probes). Rat fibroblasts FR (ATCC® CRL1213™) were plated at a density of 3,000 cells per well into white 96-well plates with clear bottoms and grown for 24 hours to allow for complete attachment. The cells were exposed to 100 μl of one of the following concentrations of 6-diazo-5-oxo-L-norleucine- in OptiMem (Invitrogen): 0.10, 0.45, 1.30, 4.10, 12.30, 37, 111, 333 or 1000 μM for 4 hours. Serum (10% Cosmic calf, Hyclone, Logan UT) was added to the wells and the cells incubated for 44 hours at 37°C. Exposure media was removed and the cells were lysed by freezing at −80°C for 72 hours. The cells were thawed and exposed to a 1:400 dilution of CyQUANT®/lysis buffer for 60 minutes. Plate fluorescence (480nm excitation, 520nm emission) was read on a Synergy plate reader (BioTek).
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5

Rat Dermal Fibroblasts and Macrophages

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Rat dermal fibroblast cell line (FR, CRL-1213, ATCC, Manassas, VA) and macrophages (RAW 264.7, TIB-71, ATCC, Manassas, VA) were used for the in vitro studies.
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6

Rat Dermal Fibroblasts: Glucose and AGEs Effects

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Rat dermal fibroblasts (cat. no. CRL-1213; American Type Culture Collection) were cultured in DMEM (Gibco; Thermo Fisher Scientific, Inc.) containing 10% FBS (Gibco; Thermo Fisher Scientific, Inc.) without any supplementary antibiotics in an incubator (37˚C; 5% CO2). Fibroblasts were cultured in DMEM containing 10% FBS under twelve different conditions (according to the groupings) for 72 h after 24 h of serum deprivation (0.5% FBS). All manipulations were performed in dim lighting, and the plates were wrapped in aluminum foil to protect them from the light. Cells were sub-cultured after they had grown to confluence. All experiments were performed in triplicate.
The cells were divided into the following groups: i) normal glucose (NG) (NG 1.0 g/l; Gibco; Thermo Fisher Scientific, Inc.); ii) NG + Hemin (Hemin 5 µM; MilliporeSigma); iii) NG + chromium mesoporphyrin (CrMP) (CrMP 20 µM; MilliporeSigma); iv) NG + Hemin + CrMP; v) AGEs + NG (AGEs 100 µg/ml; Gibco; Thermo Fisher Scientific, Inc.); vi) AGEs + NG + Hemin; vii) AGEs + NG + CrMP; viii) AGEs + NG + Hemin + CrMP; ix) AGEs + HG (HG 4.5 g/l); x) AGEs + HG + Hemin; xi) AGEs + HG + CrMP; and xii) AGEs + HG + Hemin + CrMP group (9-11 (link)).
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7

Rat Bone Marrow MSC Isolation

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BM-MSCs were obtained from the femurs of adult Sprague-Dawley rats and cultured in DMEM-F12 supplemented with 10% heat inactivated FBS, 1% Glutamine, and 1% Penicillin/Streptomycin. MSCs were characterized by flow cytometry at passage 2 and used for a maximum of 5 passages. Cell lines, including nontransformed rat intestinal epithelial IEC-6 cells (CRL-1592, passage 13) and primary rat fibroblast (FB) cells (CRL-1213), were obtained from the American Type Culture Collection. IEC-6 cells used in all experiments were at or before the 20th passage.
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