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Mir 25 mimic

Manufactured by GenePharma
Sourced in China

The MiR-25 mimic is a laboratory reagent designed to mimic the function of the microRNA miR-25. MicroRNAs are small, non-coding RNA molecules that play a role in gene expression regulation. The MiR-25 mimic can be used in research applications to study the biological functions of miR-25 in various cellular processes.

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4 protocols using mir 25 mimic

1

MiR-25 Regulation of NPC1 in THP-1 Cells

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THP-1 cells (1.5×106) were seeded in each well of 6-well plates and differentiated with PMA. Then, 50 nM MiR-25 mimic, control mimic, miR-25 inhibitor, inhibitor control, NPC1 siRNA or control siRNA was transfected into cells by using HiPerFect Transfection Reagent (Qiagen, 301705) according to the reagent instructions. Cells were transfected 48 h before collection or further experiments.
MiR-25 mimic (5′-CAUUGCACUUGUCUCGGUCUCUGA-3′), control mimic (5′-UUCUCCGAACGUGUCACGUTT-3′), miR-25 inhibitor (5′-UCAGACCGAGACAAGUGCAAUG-3′), inhibitor control (5′-CAGUACUUUUGUGUAGUACAA-3′), NPC1 siRNA (5′-GAGGUACAAUUGCGAAUAUTT-3′), NFKBIZ siRNA (5′-GCCCGAUUCGUUGUCUGAUTT-3′) and control siRNA (5′-UUCUCCGAACGUGUCACGUTT-3′) were purchased from GenePharma.
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2

LPS-Induced H9C2 Cardiomyocyte Modeling

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Cardiomyocytes (H9C2 cell line) were purchased from Cell Bank of Chinese Academy of Sciences. Cells were cultured in DMEM supplemented with 1.5 g/l NaHCO3, 10% FBS (Gibco, Invitrogen, U.S.A.), 1% glutamine, and 1% penicillin-streptomycin in 5% CO2 incubator under 37°C. H9C2 cells were treated with LPS for 24 h. MiR-25 mimic, miR-25 inhibitor, and pcDNA-PTEN were synthesized by GenePharma (Shanghai, China). Lipofectamine 2000 (Invitrogen) was used to perform cell transfection according to the manufacturer’s instructions.
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3

In Vitro Osteoclast Differentiation

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Ti particles were obtained from ThermoFisher Scientific (purity 93%, diameter < 20 μm, USA). Phosphate-buffered saline (PBS) was purchased from Hyclone (USA). miR-25 mimics and miR-25 negative control (NC) (sequence: sense, AGUCUGGCUCUGUUCACGUUAC; antisense, GUAACGUGAACAGAGCVAGACU) were synthesized by GenePharm (Shanghai, China). Lipofectamine™ RNAiMAX (Invitrogen 2149333) was obtained from ThermoFisher Scientific. Fura-2 AM (S1052) was purchased from Beyotime Biotechnology (China). The tartrate-resistant acid phosphatase (TRAP) staining kit (387A) was obtained from Sigma-Aldrich (USA). The reverse transcription (RT) kit (MR101-01/02) and qPCR reaction kit (Q711-02) were obtained from Vazyme Biotech Co., Ltd (Nanjing, China). Paraformaldehyde and glycerin were purchased from Sinopharm Chemical Reagent Co., Ltd. (Shanghai, China). Triton X-100, Hoechst 33258, radioimmunoprecipitation assay (RIPA) lysis buffer and polymethylsulfonyl fluoride (PMSF) were purchased from Beyotime Biotechnology. The BCA protein assay kit (BL521A) was obtained from BIOSHARP (USA). The supplier information for primer sequences is presented in Additional file 1: Table S1, and that for antibodies is included in Additional file 2: Table S2.
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4

miR-25 Regulation of CDK6 in VSMCs

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All experiments were approved by the Clinical Research Ethics Committee of The Fourth Affiliated Hospital, Harbin Medical University (Harbin, China).
Vectors and cell culture. The pcDNA-CDK6 vector was purchased from Sigma-Aldrich (Oakville, ON, Canada). The CDK6 3'UTR sequence with the binding site for miR-25 was cloned into the pMIR-REPORT luciferase construct (Ambion Life Technologies, Carlsbad, CA, USA). The mutant construct of CDK6 3'UTR was generated using the QuikChange Site-Directed Mutagenesis kit (Agilent Technologies, Inc., Santa Clara, CA, USA). The reagents for cell culture (fetal bovine serum, penicillin and streptomycin) were purchased from Gibco Life Technologies (Carlsbad, CA, USA). Human VSMCs were obtained from the American Type Culture Collection (Manassas, VA, USA) and cultured in the medium 231 supplemented with smooth muscle cell growth supplement (Gibco Life Technologies) at 37˚C in a humidified atmosphere of 95% air and 5% CO 2 .
Cell transfection. The miR-25 mimics and the control were synthesized by Shanghai GenePharma Co., Ltd. (Shanghai, China) and transfected into the cells to a final oligonucleotide concentration of 20 nmol/l. All cell transfections were introduced using DharmaFECT 1 reagent (GE Healthcare Biosciences, Pittsburgh, PA, USA) according to the manufacturer's instructions.
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