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16 protocols using 100 mm culture dish

1

Dental Pulp Stem Cell CFU-F Assay

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Isolated cells (10 × 103) from the deciduous dental pulp tissue were seeded into a 100-mm culture dish (Corning) and were cultured in 10 mL of XFM (Biological Industries) for 14 days. The culture dish was treated with 3 mL of 4% paraformaldehyde (Merck, Darmstadt, Germany) and 0.1% toluidine blue (Merck) in PBS (pH 7.4; Nacalai Tesque) for 18 h. After washing five times with 1 mL of PBS, the dish was air-dried and was imaged with a GT-X980 scanner (Epson, Suwa, Nagano). Numbers of CFU-F, which contained > 50 cells, were counted using a Primovert inverted microscope (Carl Zeiss Microscopy).
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2

Primary NHBE Cell Culture Protocol

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For primary cell culture, we used a previously described protocol (12 (link), 57 (link), 58 (link)). Briefly, NHBE cell monolayer passaging was also performed in a 100-mm culture dish (Corning, Inc.). The culture dish was coated with PureCol (Advanced Biometrics) before seeding cryopreserved NHBE passage 0 (P0) cells, and these cryopreserved cells were thawed in a water bath. The cells were maintained in airway epithelial cell (AEC) growth medium (PromoCell) with AEC supplement (PromoCell), 2% penicillin-streptomycin (Thermo Fisher Scientific), and 1% amphotericin B (Thermo Fisher Scientific) at 37°C in a 5% CO2 incubator. Cells were grown to 90% confluence with a medium change every other day. A confluent monolayer of cells was dissociated with TrypLE (Thermo Fisher Scientific), pelleted, and reseeded into a culture dish containing AEC medium with supplements for passaging. A portion of the cells was stored at −176°C in liquid nitrogen. Cells were passaged up to four times (P4).
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3

Colony Formation Assay Protocol

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The third-passage cells were seeded at a density of 200 cells in a 100-mm culture dish (Corning). On day 11, the cells were fixed with 4% paraformaldehyde and stained with 0.5% crystal violet (Solarbio). Colonies containing > 50 cells under microscopy were counted. The percentage of colony-forming efficiency was expressed as the total number of colonies divided by the initial number of cells that were seeded and multiplied by 100 (Huang et al. 2009 (link)).
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4

NHBE Cell Monolayer Passaging Protocol

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We used a previously described protocol (12 (link), 58 (link), 116 (link)). Briefly, NHBE cell monolayer passaging was also performed in a 100 mm culture dish (Corning, Inc.). The culture dish was coated with PureCol (Advanced Biometrics) before seeding cryopreserved NHBE passage zero (P0) cells, and these cryopreserved cells were thawed in a water bath. The cells were maintained in airway epithelial cell (AEC) growth medium (PromoCell) with AEC supplement (PromoCell), 2% penicillin/streptomycin (Thermo Fisher Scientific) and 1% amphotericin B (Thermo Fisher Scientific) at 37 °C in a 5% CO2 incubator. Cells were grown to 90% confluency with a medium change every other day. A confluent monolayer of cells was dissociated with TrypLE (Thermo Fisher Scientific), pelleted, and reseeded into a culture dish containing AEC medium with supplements for passaging. A portion of the cells was stored at −176°C in liquid nitrogen. Cells were passaged up to four times (P4).
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5

Characterization of Au-NPs Uptake in A549 and 95D Cells

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The uptake of Au-NPs was also examined using TEM. Before exposure to the Au-NPs, the A549 cells and 95D cells were plated at a concentration of 1×106 cells per dish on a 100-mm culture dish (corning, USA) containing the growth medium and incubated at 37°C with 5% CO2 for 24 h. The Au-NPs were then added. After exposure to Au-NPs for 48 h, the cells were fixed in 3.7% (v/v) paraformaldehyde in phosphate-buffered saline (PBS) for 20 min at RT. Subsequently, cells were prepared for TEM analysis as follows: cells were fixed in 1% (w/v) osmium tetroxide for 2 h, dehydrated in a graded series of 30%, 50%, 70%, 80%, and 90% ethanol, and treated three times with 100% ethanol for 15 min each. The samples were then embedded in a mixture of resin in propylene oxide polymerized at 80°C. Ultrathin sections for TEM were prepared using a diamond knife and the samples were analyzed using a transmission electron microscope.
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6

Differentiation of Primary NHBE Cells

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We passaged the primary NHBE cells (passage 1) three times before differentiating them (passage 4) into a pseudostratified epithelium. For each passage, the cells were grown in a 100-mm culture dish (Corning Inc.) precoated with PurCol (Advanced Biometrics). The cells were maintained in airway epithelial cell (AEC) growth medium (PromoCell) containing AEC supplements (PromoCell), 2% penicillin/streptomycin (Thermos Fisher Scientific), and 1% amphotericin B (Thermos Fisher Scientific) (complete AEC medium) at 37°C in an incubator with 5% CO2. The cells were grown to 90% confluency, and the medium was changed every other day. Confluent monolayers of cells were dissociated with 5 ml of TrypLE (Thermo Fisher Scientific) and pelleted, and one-third of the cells were reseeded in a culture dish containing complete AEC medium for passaging. A549 cells were grown in F-12 medium (Thermo Fisher Scientific) with 10% HyClone fetal bovine serum (GE Healthcare), 2% penicillin/streptomycin, and 1% amphotericin B.
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7

Differentiation of M2 Macrophages

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Generation of M2 macrophages was performed according to the protocol described by Leidi et al. [15 (link)]. Briefly, human PBMCs were co-cultured in 6-well plates or 100-mm culture dish (Corning) in complete RPMI1640 media supplemented with 30 ng/ml human M-CSF (R&D systems) for 4 days. Adherent cells were retained by gently washing off non- and loose-adherent cells, with half of media replaced, and culture for 2–3 more days. For M2 polarization, 10 ng/ml IL-10 (Peprotech) was added during the last 48 h of culture.
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8

Culturing Human Cancer Cell Lines

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The human cancer cells QBC9939, MZ-Cha-1 were obtained from the American Type of Culture Collection (ATCC, Rockville, MD, USA). They were separately cultured in 100-mm culture dish (Corning Glass Works, Corning, NY, USA) using RPMI-1640 and DMEM medium (Gibco, Grand Island, NY, USA) with 5% fetal bovine serum (Gibco), 100 μg/ml streptomycin and 100 U/ml penicillin at 37°C in 5% CO2 humidified incubator.
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9

Isolation and Culture of Human BMSCs

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Human mandibular bones of BRONJ patients or healthy donors were collected at the Peking University Hospital of Stomatology, approved by the Ethics Committee of Peking University (IRB00001052-11002). After surgery, bone biopsies were thoroughly cut into 1-mm3 cubes and digested with dispase II (4 mg/mL) and collagenase I (2 mg/mL) for 30 min at 37°C. Cells were collected by centrifugation at 1,200 rpm for 5 min, then filtered, resuspended and seeded in a 100-mm culture dish (Corning, NY, United States). Following overnight culture at 37°C in a humidified atmosphere of 5% CO2, unattached cells were discarded and the medium was changed every 2 days. Cells were maintained at 37°C and 5% CO2. BMSCs at passage 3 were used for the migration assay.
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10

Isolation and Culture of Human Rotator Cuff Tenocytes

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Human rotator cuff tendon was obtained during elective surgery of rotator cuff repair from a 63-year-old woman. Informed written consent was taken from the patient for this study.
The sample, 5 × 5 mm out of a 30 × 20 mm-full thickness of rotator cuff tear, was washed with phosphate buffered saline (PBS: HyClone, USA) three times, and then cut into 1-2 mm 3 with a No. 11 knife. Pieces of torn rotator cuff tissue were placed on cover slides and incubated at 37°C in a CO 2 incubator for two weeks. Cell suspension was collected, filtered through a 100-μm cell strainer (BD Biosciences, USA), and centrifuged at 300 g for 10 min at room temperature. Suspension was incubated with 1 ml of red blood cell lysing buffer (Sigma R7757, USA) at room temperature for 1 min, pipetted for 1 min to mix, added to 9 ml of PBS, and then centrifuged at 300 ×g for 10 min at room temperature. Isolated cells were seeded into a 100-mm culture dish (Corning, USA) and incubated in Dulbecco ' s modified Eagle medium (DMEM: HyClone, USA) containing 10% fetal bovine serum (Gibco, USA), 100 U/ml penicillin and 100 U/ml streptomycin (Gibco). The cultures were maintained at 37°C CO 2 incubator. Culture medium was replaced three times per week. All experiments on tenocytes were conducted at three passages.
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