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16 protocols using pcdna nc

1

Overexpression of miR-532-5p and CCND1 in Cells

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Cells (1×105 cells/well) were seeded into 6-well plates and cultured for 24 h at 37°C with 5% CO2. Cell transfection was performed when the cells reached 80% confluency. The miR-532-5p mimic and mimic-negative control (mimic-NC; Invitrogen; Thermo Fisher Scientific, Inc.) were transfected directly into cells. For overexpression of miR-532-5p, the cells were transfected with mimic at a final concentration of 25 nM for 48 h at 37°C. For pcDNA-NC (empty vector, Invitrogen; Thermo Fisher Scientific, Inc.) and pcDNA-CCND1, full length transcript of CCND1 was amplified from cDNA obtained from 293T cells by PCR using PrimeSTAR® HS DNA polymerase (Takara Bio, Inc.), and was transfected at a final concentration of 500 ng for 48 h at 37°C. The PCR amplification product was inserted into the KpnI and BamHI sites of the pcDNA vector (Invitrogen; Thermo Fisher Scientific, Inc.), which was termed pcDNA-CCND1. Transfection was performed using Lipofectamine® 2000 (Invitrogen; Thermo Fisher Scientific, Inc.) according to the manufacturer's protocol. Transfection efficiency was determined by RT-qPCR 48 h after transfection.
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2

Silencing OIP5-AS1 and Overexpressing FOSL2 in CDDP-Resistant Osteosarcoma

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Small interference RNA (siRNA) against OIP5-AS1 (si-OIP5-AS1, 5ʹ-GCTCCTAGGATTCCAGTTA-3ʹ) and its negative control (si-NC), miR-377-3p mimic (miR-377-3p) and its control (miR-NC), miR-377-3p inhibitor (anti-miR-377-3p) and its scramble (anti-miR-NC) were purchased from GenePharma (Shanghai, China). The sequences of OIP5-AS1 and FOSL2 were inserted into pcDNA3.1 vector (pcDNA-NC; Invitrogen, Carlsbad, CA, USA) to construct overexpression plasmid (pcDNA-OIP5-AS1 or pcDNA-FOSL2). Whereafter, MG63/CDDP and Saos-2/CDDP cells (2 × 105 cells/well) were seeded in 6-well plates, and transfected with these plasmids and oligonucleotides for 48 h according to the producer’s instructions of Lipofectamine 2000 (Invitrogen).
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3

Propofol and Metformin Modulate Cav-1 in HT-22 Cells

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HT-22 cells were treated with 100 μmol/L propofol and 10 μmol/L metformin for 24 h. Then, si-NC, si-Cav-1, pcDNA-NC and pcDNA-Cav-1 purchased from Invitrogen (Invitrogen, CA, USA) were transfected into HT-22 cells using Lipofectamine 3000. After transfection for 4–6 h, medium containing 10% FBS was replaced.
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4

Targeting circ_0003998 and miR-218-5p in Doxorubicin Resistance

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The mimic and inhibitor of miR-218-5p (miR-218-5p and anti-miR-218-5p) and their negative control (miR-NC and anti-miR-NC) were obtained from RIBOBIO (Guangzhou, China). Small interfering RNA (siRNA) targeting circ_0003998 covalent closed junction (si-circ_0003998) or siRNA negative control (si-NC), the scramble shRNA sequence or shRNA targeting circ_0003998 (sh-NC or sh-circ_0003998), pDNA-EIF5A2 overexpression vector (pcDNA-EIF5A2) and empty plasmid (pcDNA-NC) were synthesized by Invitrogen. Afterwards, DOX-resistant cells were plated in six-well plate (5 × 105 cells/well), allowed to adhere for 24 h and transfected with these siRNC (10 nM), miRNA mimics or inhibitor (30 nM) or pcDNAs (10 nM) using Lipofectamine 2000 (Invitrogen).
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5

LncRNA-ATB Regulates TGF-β1 Induced HK-2 Cells

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HK-2 cells (ATCC® CRL-2190™) were cultured in Dulbecco’s medium supplemented with 10% fetal bovine serum (FBS), L-glutamine, bovine pituitary extract (BPE), and epidermal growth factor (EGF) and placed in an incubator containing 5% CO2. The cells were cultured in 96-well plates at a density of 1×105 for 24 hours and then the cells were treated with TGF-β1 (10 ng/mL) for 12 hours, 24 hours, and 48 hours, respectively. pcDNA-NC, pcDNA-LncRNA-ATB, ShRNA-NC, ShRNA-LncRNA-ATB-1, and ShRNA-LncRNA-ATB-2 were purchased from GenePharma (Shanghai, China). The cells after treatment with TGF-β1 were transfected with pcDNA-NC, pcDNA-LncRNA-ATB, ShRNA-NC, ShRNA-LncRNA-ATB-1, and ShRNA-LncRNA-ATB-2, respectively according to the manufacturer’s protocol, by using Lipofectamine 2000 reagent (Invitrogen).
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6

Modulating circDONSON and miR-802 Axis

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The miR-802 mimic, miR-802 inhibitor (anti-miR-802) and their negative control (miR-NC mimic, anti-miR-NC) were achieved by RiboBio (Guangzhou, China). Small interfering RNA (siRNA) sequences targeting circDONSON (si-circDONSON, 5′-AUGUAAAGGUGUUGAUUCCUU-3′), siRNA negative control (si-NC, 5′-UUCUCCGAACGUGUCACGU-3′), pcDNA-BMI1 overexpression vector (pcDNA-BMI1), empty vector (pcDNA-NC), and lentiviral encoding either short hairpin RNA (shRNA)-targeting circDONSON (sh-circDONSON) or a scrambled control sequence (sh-NC) were designed and synthesized by Invitrogen (Carlsbad, CA, USA). Then transfection of these mimics or vectors was carried out using Lipofectamine 2000 (Invitrogen).
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7

miR-195-5p Regulation of E2F3 in AMC-HN-8 Cells

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miR-195-5p mimic and the negative control miRNA (miRNA-NC) were obtained from Guangzhou RiboBio Co., Ltd. The E2F3 overexpression vector pcDNA-E2F3 and empty control vector pcDNA-NC were constructed by Shanghai GenePharma Co., Ltd. The sequences were as follows: miR-195-5p mimic sense, 5'-UAGCAGCACAGAAAUAUUGGC-3'; miR-195-5p mimic antisense, 5'-CAAUAUUUCUGUGCUGCUAUU-3'; mimics negative control (miR-NC) sense, 5'-UUCUCCGAACGUGUCACGUTT-3'; miR-NC antisense, 5'-ACGUGACACGUUCGGAGAATT-3'. Cells were plated into 6-well plates (1x106 cells per well), and transfection was performed when cells at the logarithmic growth phase reached 80% confluence. According to the product instructions, AMC-HN-8 cells were transfected with miR-195-5p mimic (50 nM), miR-NC (50 nM), pcDNA-E2F3 (100 nM) and pcDNA-NC (100 nM) using Lipofectamine® 2000 (Invitrogen; Thermo Fisher Scientific, Inc.). The transfection efficiencies were assessed by RT-qPCR at 48 h after transfection.
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8

Regulation of Glioma Cell Pathways by circRNA and miRNA

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Oligonucleotides including small interfering RNA (siRNA) against circ_0037655 (si-circ_0037655), miR-1229-3p mimic, miR-1229-3p inhibitor and their negative controls (si-NC, miR-NC mimic and miR-NC inhibitor) were directly purchased from GenePharma (Shanghai, China). Vectors of shRNA hairpin RNA (shRNA) against circ_0037655 and the negative control (sh-circ_0037655 and sh-NC), overexpression vector pCE-RB-Mam-circ_0037655 (oe-circ_0037655) and the basic pCE-RB-Mam vector (oe-NC) were obtained from RiboBio (Guangzhou, China). ITGB8 sequence was cloned into the pcDNA vector (pcDNA-NC; Invitrogen, Carlsbad, CA, USA) to generate the pcDNA-ITGB8. Transfection was performed in T98G and LN229 cells using Lipofectamine™ 3000 (Invitrogen), according to the provided guidelines for users.
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9

Regulation of Notch2 by miR-15a-5p

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The miR-negative control (NC), miR-15a-5p mimics, miR-15a-5p inhibitor, pcDNA3.1 Notch2 (pcDNA-Notch2), and pcDNA-NC were synthesized by Invitrogen. The lentiviral vector, short hairpin-LINC00662, and sh-NC were synthesized by GenePharma (Shanghai, China). The MG63 and U2OS cells were cultured to a confluence of 80%, and were subsequently transfected or co-transfected with the aforementioned agents using Lipofectamine 3000 (Invitrogen).
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10

AKIP1 Modulation in ATC Cells

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The AKIP1 siRNA (si-AKIP1) and negative control (si-NC) were commercially designed and synthesized by Shanghai GenePharma Co., Ltd. (Shanghai, China). The AKIP1 overexpression plasmids (pcDNA-AKIP1) and negative control (pcDNA-NC) were obtained from Guangzhou Ribobio Co., Ltd. (Guangzhou, China). ATC cells were cultured and transfected with 50 nM siRNA (si-AKIP1 or si-NC) or 0.8 μg of plasmids (pcDNA-AKIP1 or pcDNA-NC) with Lipofectamine® 3000 (Invitrogen, USA) for 6 h. The AKIP1 siRNA sequence was as follows: sense, 5’ GTGGGCTCAAATGACTTAATT 3’; antisense, 5’ TTAAGTCATTTGAGCCCACTT 3’. The non-transfected cells served as normal controls.
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