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17 protocols using sgc 7901

1

Establishing Cisplatin-Resistant Gastric Cancer Cell Line

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The human normal gastric epithelial cell line (GES-1) and GC cell line (SGC7901) were purchased from the BeNa Culture Collection (Shanghai, China). Cells were cultured in RPMI-1640 medium (Hyclone, Logan, UT, United States) supplemented with 10% fetal bovine serum (Sigma-Aldrich, St. Louis, MO, United States) and 1% penicillin-streptomycin (Solarbio, Beijing, China) at 37°C in a humidified atmosphere containing 5% CO2.
The cisplatin-resistant adenocarcinoma cell line from human stomach, SGC7901/DDP, was established by exposing parental SGC7901 cells to cisplatin in RMPI-1640 plus 10% FBS by gradually increasing the cisplatin concentration until the cells acquired resistance to 50 μmol/L.
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2

Modulating miR-1-3p and CENPF in Gastric Cells

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Normal human gastric epithelial cell line GES1 (BNCC337969), GC cell lines AGS (BNCC338141), SGC-7901 (BNCC100114) and MGC803 (BNCC100665) were procured from BeNa Culture Collection (BNCC). GES1 and MGC803 were grown in Dulbecco’s Modified Eagle Medium (DMEM) + 10% fetal bovine serum (FBS). AGS cell line was cultivated in F-12 complete medium + 10% FBS. SGC-7901 cell line was grown in Roswell Park Memorial Institute (RPMI) complete medium. They were all preserved in standard cultural condition. RiboBio provided miR-1-3p inhibitor, miR-1-3p mimic (miR-mimic), pcDNA3.1-CENPF plasmids (oe-CENPF) encoding CENPF and corresponding negative controls (NCs). These plasmids were transfected to designated cell lines with lipofectamine RNAiMAX (Life Technologies).
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3

Authentication and Culture of Human Cancer Cell Lines

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The human cancer cell lines BGC-823 and SGC-7901 were obtained from the BeNa Culture Collection. Furthermore, all cancer cells were authenticated by short tandem repeat (STR profiles are attached in supplemental materials) and tested for mycoplasma contamination. The human cell culture had gained the ethical approval in Zhuhai Hospital Affiliated with Jinan University. Both cell lines were cultured in RPMI-1640 medium (Gibco, Grand Island, NY, USA) with 10% fetal bovine serum (FBS, HyClone, Logan, UT, USA), 100 U/mL penicillin, and 100 U/mL streptomycin (Gibco, Grand Island, NY, USA). The cells were grown at 37°C in a humidified incubator (BB15, Thermo Fisher Scientific Inc., Langenselbold, Germany) with 5% CO2.
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4

Culturing and Treating Human GC Cells

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The human GC cell line SGC7901 was obtained from the Be Na Culture Collection (BNCC, Shanghai, China). Cells were cultured in Dulbecco's modified Eagleʼs medium (DMEM; HyClone, Logan, USA) containing 10% fetal bovine serum (FBS; Biological Industries, Beit HaEmek, Israel) and 1% penicillin-streptomycin (HyClone) and were maintained in a 5% CO2 incubator at 37°C. Cell passage was performed when the cells reached 80% of confluence.
SGC7901 cells (5 × 105–1 × 106 cells/well) were seeded in 6-well plates and treated with SJZ (DMEM containing 10% SJZ group serum) or NS (DMEM containing 10% control group serum). Cells were harvested at 48 h after treatment for use in the subsequent experiments.
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5

Gastric Cancer Cell Line Transfection

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The human gastric cancer cell lines (MGC-803, AGS, HGC-27 and SGC-7901) and normal human gastric mucosal epithelial cell GES-1 were purchased from Bena Culture Collection (Beijing, China). DMEM medium (Sigma, St. Louis, MO, USA) plus 10% fetal bovine serum and antibiotics was applied to the culture of gastric cancer cells and normal cells at 37°C with 5% CO2.
The overexpression vector of circNRIP1 (has_circ_0002711) was generated by inserting into pcDNA3.1 empty vector (pcDNA) (Thermo Fisher Scientific, Wilmington, DE, USA). Small interfering RNA (siRNA) against circNRIP1 (si-circNRIP1) (5ʹ-ACGCACAAAGAAAGAAGTGTT-3ʹ), siRNA negative control (si-NC) (5ʹ-UCUCCGAACGUGUCACGUTT-3ʹ), miR-182 mimic (miR-182) (5ʹ-UUUGGCAAUGGUAGAACUCACACU-3ʹ), miRNA negative control (miR-NC) (5ʹ-CCUGGUAAUGGUAGAAUCUACACU-3ʹ), miR-182 inhibitor (anti-miR-182) (5ʹ-AGUGUGAGUUCUACCAUUGCCAAA-3ʹ) and inhibitor negative control (anti-miR-NC) (5ʹ-UAAUUCAAAAGACUAAAGGAAUCA-3ʹ) were generated by GenePharm (Shanghai, China). These constructed oligonucleotides (20 nM) or vectors (1 μg) were transfected into MGC-803 and AGS cells using Lipofectamine 3000 (Thermo Fisher Scientific). The non-transfected cells were regarded as the mock group. After the transfection for 24 h, cells were collected and used for further experiments.
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6

Culturing Gastric Cell Lines

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Human GC cell lines (MKN45, AGS and SGC7901) and a normal gastric epithelial cell line (GES1) were purchased from the BeNa Culture Collection (Beijing, China). All the cells were cultured in Roswell Park Memorial Institute (RPMI) 1640 medium (Gibco, NY, USA) supplemented with 10% foetal bovine serum (FBS) (Sciencell, CA, USA) and 1% penicillin/streptomycin (HyClone, UT, USA) at 5% CO2 and 37 °C. The IFN-γ used for the experimental treatment of the cells was purchased from PeproTech (NJ, USA).
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7

Cell Lines for Gastric Cancer Research

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Human normal gastric epithelial cell line GES 1 and gastric cancer cell lines MKN28, SGC-7901 and NCI-N87 were purchased from BeNa Culture Collection (Beijing, China). For cell culture, GES 1 and MKN28 cells were maintained in Dulbecco’s modified Eagle medium (DMEM) with high glucose (Thermo Fisher Scientific, MA, USA), supplemented with 10% fetal bovine serum (FBS; Thermo Fisher Scientific). NCI-N87 and SGC-7901 cells were cultured in RPMI-1640 medium (Thermo Fisher Scientific) with 10% FBS supplement.
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8

Culturing GC and Gastric Cell Lines

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Four GC cell lines (AGS, BGC-823, MKN-45 and SGC-7901) and a gastric epithelial cell line (GES-1) were purchased from BeNa Culture Collection (Beijing China). AGS cells were cultured in Ham's F12 medium (HyClone, GE Healthcare Life Sciences, Logan, UT, USA) supplemented with 10% fetal bovine serum (FBS; Gibco, Thermo Fisher Scientific, Inc., Waltham, MA, USA), and the remaining cell lines were cultured in Dulbecco's modified Eagle's medium/high glucose medium (HyClone; GE Healthcare Life Sciences) supplemented with 10% FBS at 37°C in 5% CO2.
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9

Culturing Human Gastric Cancer Cells

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The human gastric cancer cell line SGC7901 was purchased from the Be Na Culture Collection (BNCC, Shanghai, China) and cultured in Dulbecco's modified Eagle's medium (DMEM; HyClone, Logan, UT, USA) containing 10% fetal bovine serum (FBS; Biological Industries, Beit HaEmek, Israel) supplemented with 1% penicillin-streptomycin (HyClone) at 37°C in a humidified incubator containing 5% CO2.
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10

Gastric Cancer Cell Line Cultivation

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Human GC cell lines BGC-823 (BNCC100086), MGC-803 (BNCC340396), SGC-7901 (BNCC100114), HGC-27 (BNCC100097), AGS (BNCC102154) and normal gastric cell line GES-1 (BNCC342032) were purchased from BeNa Culture Collection (Beijing, China). All cells were cultured in the RPMI-1640 medium (Gibco, Thermo Fisher Scientific, Inc., Waltham, MA, USA) supplemented with 10% fetal bovine serum (FBS; Hyclone; GE Healthcare Life Sciences, Logan, UT, USA) as well as 100 U/mL streptomycin (Gibco, Thermo Fisher Scientific, Inc.) and 100 U/mL penicillin (Gibco, Thermo Fisher Scientific, Inc.) under the environment of 5% CO2 at 37 ℃. The medium was replaced on a regular basis.
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