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7 protocols using mda mb 231 cells

1

Cell Line Provenance Validation

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Human ovarian cancer SKOV3 cells (CL-0215), Human breast cancer MCF−7 cells (CL-0149), Human brain glioma U87 cells (CL-0238), Mouse melanoma B16F10 cells (CL-0319), Human hepatic stellate LX2 cells (CL-0560), Human hepatocellular carcinomas HepG2 cells (CL-0103) and Human breast cancer MDA-MB-231 cells (CL-0150) were kindly provided by Procell Life Science & Technology Co., Ltd. Authentication of all cells was conducted via short tandem repeat (STR) profiling in Procell Life Science & Technology Co., Ltd.
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2

Cell Culture Protocol for MDA-MB-231 and THP-1

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MDA-MB-231 cells and the human monocytic cell line THP-1 were purchased from Procell Life Science & Technology Co., Ltd. Cells were cultured in DMEM containing 10% fetal bovine serum and 1% penicillin‒streptomycin at 37°C and 5% CO2. Cells were digested using ztrypsin upon reaching 80% confluence, and the cells in the logarithmic growth phase were used for subsequent experiments.
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3

Culturing Common Cancer Cell Lines

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The HeLa, A549, MCF-7, A2780, SW620 cell lines, and the liver cancer cell line, HepG2 were purchased from the China Center for Typical Culture Collection. The MDA-MB-231 cells were purchased from Procell Life Science and Technology Co., Ltd.. The HeLa cells were cultured in DMEM supplemented with 10% (v/v) NBS, 100 µg/ml streptomycin, and 100 IU/ml penicillin at 37°C in a humidified incubator with 5% CO2. The A549 cells were maintained in RPMI-1640, supplemented with 10% (v/v) FBS, while the MCF-7, HepG2, A2780, SW620, MDA-MB-231 cells were maintained in DMEM supplemented with 10% (v/v) FBS.
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4

Glycan-Decorated Gold Nanoparticles

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The materials and reagents in this work were in analytical-reagent grade and used directly without further purification. Chloroauric acid hydrated (HAuCl4·4H2O) was purchased from Chemical Reagent Co., Ltd. of Shanghai (Shanghai, China). L-Glutathione reduced (GSH), methoxylamine hydrochloride, sodium cyanoborohydride, sodium acetate an-hydrous, dichloromethane, ethanol, hydroxylamine hydro-chloride (NH2OH·HCl), D-mannose (Man), D-glucose (Glu), D-lactose monohydrate (Lac), monosialoganglioside (GM3), and phenol were obtained from Yinuokai Technology Co., Ltd. (Beijing, China). 4-Maleimidobutyric acid N-hydroxysuccinimide ester (GMBS), acrolein, L-fucose (Fuc), and 4-aminophenyl α-D-mannopyranoside (NH2-Man) were provided by Aladdin Industrial Corporation (Shanghai, China). Thioacetic acid and concanavalin A (Con A) were obtained from Sigma Aldrich (St. Louis, MO, USA). The cell counting kit-8 (CCK-8) was purchased from Dojindo Laboratories (Kyushu, Japan). The human breast cancer MDA-MB-231 cells and Swiss albino 3T3 cells were purchased from Procell Life Technology Co., Ltd. (Wuhan, China). The ultrapure water (18.2 MΩ) used in this work was generated by a Milli-Q device (Millipore, MA, USA).
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5

Overexpression of IGF2BP2 in Breast Cancer

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MDA-MB-231 cells were purchased from Procell Life Science & Technology Co. Ltd. They were cultured in Dulbecco’s Modified Eagle Medium (DMEM) medium, containing 10% fetal bovine serum and antibiotics, at 37℃, with 5% CO2. For transfection, the cells were divided into three groups: the control group, the IGF2BP2 overexpression (Ov) group, and the IGF2BP2 IGF2BP2 Ov negative control (NC) group. The cells were plated in 6-well plates until cell confluence reached 90%, after which cell transfection was performed using Lipofectamine 2000. At 48 h after transfection, the cells were collected for analysis.
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6

Cell Culture and Differentiation Protocol

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MDA-MB-231 cells and THP-1 cells (the human monocytic cell line) were obtained from Procell Life Science & Technology Co., Ltd. (Wuhan, China), and MDA-MB-468 cells from the American Type Culture Collection were grown in Dulbecco’s modified Eagle’s medium (DMEM) supplemented with 10% fetal bovine serum and 1% penicillin‒streptomycin (Invitrogen) at 37°C. Upon reaching 80–90% confluence, cells were passaged at a ratio of 1:5–1:10, and the following assays were conducted with cells in the logarithmic growth phase. The differentiation of THP-1 cells was induced by incubation with 50 ng/mL phorbol 12-myristate 13-acetate (PMA) for 48 h.
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7

Cell Culture Protocols for Cancer and Normal Cells

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MDA-MB-231 cells were obtained from Procell Life Science & Technology Co., Ltd. They were cultivated in DMEM medium enriched with 10% FBS and 1% penicillin/strepto mycin antibiotic. MCF-10A cells were also used in this study. They were cultured in DMEM/F 12 supplemented with 20ng/ml EGF, Hydrocortisone, Insulin, NEAA, 5% HS, and 1% penicillin/streptomycin Solution. The manufacturer's recommended protocols were followed for maintaining the cells. All cell cultures were maintained in a humid incubator at 37°C with 5% CO2.
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