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Beas 2b cell line

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The BEAS-2B cell line is a human bronchial epithelial cell line derived from normal human bronchial epithelium. The cells are immortalized and can be used for in vitro studies related to the respiratory system.

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40 protocols using beas 2b cell line

1

BEAS-2B Cell Stimulation and Transfection

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BEAS‐2B cell lines were purchased from ATCC (Manassas, VA). Cells were cultured in DMEM medium (Gibco, USA) with 10% FBS (Biological Industries, Israel). Cells were stimulated with or without IL-13 (20 ng/mL, Peprotech, USA) and transfected with control or miR-30a-3p mimic (50 μmol/L, RiboBio, China), control or miR-30a-3p inhibitor (100 μmol/L, RiboBio, China), scrambled or RUNX2 siRNA (100 μmol/L, RiboBio, China), and empty control or RUNX2 cDNA expression vector (500 ng/mL, GeneCopoeia, China) using Lipofectamine 3000 (Invitrogen, USA). The sequence of the sense strand of RUNX2 siRNA (5′-CTCTGCACCAAGTCCTTTTdTT‐3′) have been described previously [21 (link)]. Forty-eight hours after IL-13 stimulation, cells were harvested for quantitative PCR and Western blotting. Cell culture medium was collected for ELISA.
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2

Evaluating E-Liquid Oxidative Stress

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BEAS-2B cell lines (ATCC, Manassas, VA) were used in this study for subsequent oxidative stress detection assays. Cells were maintained in DMEM/F12 media supplemented with 10 % FBS and 1 % antibiotic-antimycotic solution at 37 °C and 5 % of CO2. Cells for treatments were seeded at a concentration of 2.5 × 105 cells/well in 24 well plate (Corning).
Prior to treatment Cells were incubated overnight in low serum-containing media (FBS 0 %). Cells were exposed to six different e-liquids of various nicotine and synthetic coolant concentrations for 4 h to assess for differences in cellular ROS production. The treatments were as follow; An untreated group (only low serum-containing media (FBS 0 %) was added to culture media), PG:VG (50:50), PG:VG (50:50) containing nicotine (5%), PG:VG (50:50) +WS-23 (3 %), PG:VG (nicotine) + WS-23, PG:VG (50:50)+WS-3 (3 %) PG:VG (nicotine) + WS-3 (3 %). To clarify, 0.25 % of each of the previously listed e-liquids were used to treat the cells for 4 h. Afterward, cellular ROS production in BEAS-2B cells was assessed through a fluorescent probe, CellROX Green Reagent (ThermoFisher).
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3

Investigating CDH26 in Human Bronchial Epithelial Cells

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Human bronchial epithelial (HBE) cells collected from healthy donors (n = 3) by bronchial brushing technique were cultured at an air-liquid interface as previously described 35, 36 . BEAS-2B cell lines were purchased from ATCC (Manassas, VA). Cells All rights reserved. No reuse allowed without permission. perpetuity. preprint (which was not certified by peer review) is the author/funder, who has granted medRxiv a license to display the preprint in The copyright holder for this this version posted December 2, 2020. ; https://doi.org/10.1101/2020.12.01.20241752 doi: medRxiv preprint were cultured in DMEM medium with 10% FBS (Biological Industries, Kibbutz Beit-Haemek, Israel) and were transfected with scrambled control or CDH26 siRNA (80 nM; GeneCopoeia), or empty or CDH26 cDNA expression vector (500 ng/mL) using Lipofectamine 3000 (Invitrogen, Carlsbad, CA). Forty-eight hours before the end of culture, IL-13 (20 ng/mL; PeproTech) was added to the basal medium. Finally, cells were harvested for quantitative PCR and Western blotting. The cell culture media were collected for ELISA. The sequence of CDH26 siRNA are described in Supplementary Materials.
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4

Epigenetic Modulation of SPCA1 and Beas2b Cells

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SPCA1 cell lines were obtained from the cell bank of the Type Culture Collection of the Chinese Academy of Sciences (Shanghai, China) and Beas2b cell lines were obtained from American Type Culture Collection (Manassas, VA, USA). SPCA1 cells were maintained in RPMI‐1640 and supplemented with 10% fetal bovine serum (FBS, BI, Beit Ha'emek, Israel) containing 1% penicillin‐streptomycin, while BEAS2B cells were maintained in BEGM (Lonza, Walkersville, MD, USA). The cell culture was maintained in a humidified incubator at 37°C in an atmosphere of 5% CO2. The experimental group cells were treated with 10 μM 5‐Aza (MCE Co., Monmouth, NJ, USA) for four days. The control group cells were treated with the same amounts of phosphate buffered saline (PBS, BI) for the same time periods. Culture medium and 5‐Aza were replaced daily.
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5

Photodynamic Therapy for Small Cell Lung Cancer

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Human small cell lung cancer H446 cell and bronchial epithelial BEAS-2B cell lines were obtained from the American Type Culture Collection. The Dulbecco’s modified Eagle’s medium (DMEM) were purchased from Hyclone. The CCK8 kit was from Med ChemExpress. Hoechst 33,258 dyeing liquid, cell cycle, and apoptosis detection kit were obtained from Beyotime. Hematoporphyrin derivative was purchased from Huading Modern Biologic& Chemical Co. Ltd. The reverse transcription kit and SYBR Green fluorescent quantitative PCR kit were from TaKaRa. LED-IB photodynamic therapy instrument was made by Wuhan Yage Photoelectric Technology Co. LTD (China). Mode of operation: continuous. The output wavelength was: Red light 630 nm; Output power: 80 mW/cm2.
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6

Investigating JAK2/STAT3 Signaling in BEAS-2B Cells

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BEAS-2B cell lines were acquired from the American Type Culture Collection (ATCC, Rockville, MA, USA). C6-ceramide, ammonium pyrrolidinedithiocarbamate (PDTC), tyrphostin B42 (AG490), and 6-Nitrobenzo[b]thiophene-1, 1-dioxide (Stattic) were acquired from Sigma-Aldrich (St Louis, MO, USA). Dulbecco’s Modified Eagle’s Medium (DMEM) and Fetal bovine serum (FBS) were obtained from HyClone (Logan, UT, USA). Anti-JAK2, anti-phosphorylated JAK2 (p-JAK2), anti-STAT3, anti-phosphorylated STAT3 (p-STAT3), anti-CD68, and anti-β-actin antibodies were acquired from Cell Signaling Technology (Beverly, MA, USA). IRDye 680RD Goat anti-Rabbit and Goat anti-Mouse IgG (H + L) was acquired from LI-COR Biosciences (Lincoln, NE, USA). TRIzol was acquired from Invitrogen Corporation (Carlsbad, California, USA). TB Green Mixture was acquired from TaKaRa (Otsu, Shiga, Japan).
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7

Cell culture of NSCLC and control lines

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Two human NSCLC A549 and H1299 cell lines, human embryonic fibroblast MRC-5 cell line and the human bronchial epithelial BEAS.2B cell line were purchased from the ATCC (Manassas, VA, United States). Cells were cultured in RPMI-1640 (Gibco, Grand Island, NY, United States) supplemented with 10% FBS (GIBCO, United States) and 1% penicillin/streptomycin in a humidified 5% CO2 atmosphere at 37°C.
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8

EGFR Localization and Trafficking Assay

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The Beas2B cell line was bought from ATCC (CRL-9609) and was grown in Dulbecco’s Modified Eagle Medium (DMEM) (Gibco) supplemented with 10% fetal bovine serum (Gibco) and 1% penicillin/streptomycin at 37 °C. The plasmid constructs used in this study included EGFR-mCherry, EGFR-EGFP (the cDNA encoding human EGFR were ordered from BGI (Beijing, China). The plasmids Str-KDEL_SBP-mCherry-EGFR and Str-KDEL_SBP-EGFP-EGFR were generated by standard molecular cloning procedures. The N-terminus of SBP-EGFP tag, SBP-mCherry tag are followed by a signal sequence derived from IL-267 (link)), Tomm20-EGFP (artificially constructed based on EGFP-N1 backbone), 3XmEmerald-ensconsin (a gift from Prof. Dong Li (University of Chinese Academy of Sciences), Tomm20-mCherry (artificially constructed based on mCherry-N1 backbone), EGFP-Sec61β and Halo-clathrin (gifts from Prof. Yuhui Zhang (Huazhong University of Science and Technology)). The day before transfection, cells were seeded into the wells of a 24-well plate with 500 μL culture medium. The indicated plasmid was transfected into cells by the Lipofectamine LTX (Invitrogen) according to the standard protocol. The cells were digested with 0.25% trypsin (Thermo Fisher Scientific) 6–8 h after transfection, seeded onto confocal dishes, and cultured at 37 °C with 5% CO2 for another 24 h.
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9

Cell Culture and Transfection for Lung Cancer

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Lung cancer cell lines including A549, H1299, and H1650 cells was purchased from ATCC. The normal human bronchial epithelial (BEAS-2B) cell line was also purchased from ATCC. All the cells were cultured in the 1640 medium (Gibco, USA) with 10% FBS (HyClone Sera, USA) and 1% penicillin‐streptomycin (Sangon Biotech, China) in an atmosphere of 5% CO2 at 37 °C.The BIRC5 shRNA expression vector and scrambled shRNA nontarget control were obtained from Genewiz. Plasmids (Genewiz, China) were transfected through Lipofectamine 3000 (Thermo Scientific, USA) following the instructions from the manufacturer’s protocols.
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10

Culturing Human Lung Cell Lines

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Human non-small-cell lung
cancer cell lines A549
and H1975 and the human bronchial epithelial BEAS-2B cell line were
purchased from ATCC (Manassas, VA). Cells were cultured in Roswell
Park Memorial Institute (RPMI)-1640 media supplemented with 10% v/v
fetal bovine serum, 100 U·mL–1 penicillin,
and 100 μg·mL–1 streptomycin. Cells were
grown in a humidified atmosphere at 37 °C and 5% CO2.
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