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29 protocols using p1200

1

Quantification of FOXP3 and RoR-γt Protein Expressions in Mice Kidneys

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Protein expressions of FOXP3 and RoR-γt in mice kidney tissues were quantified using Western blot analysis. Mice kidney tissues were lyzed by NP-40 Lysis Solution (N8032; Solarbio) which added with protease inhibitor mixture (P6730; Solarbio) and PMSF (P0100; Solarbio) to obtain the total protein in tissues. Then, the concentration of total protein was evaluated using a BCA protein assay kit (PC0020; Solarbio). After the protein was denatured by mixing with loading buffer (P1040; Solarbio) and 100 °C heating for 5 min, the protein was separated by the SDS-PAGE gel (P1200, Solarbio) and transferred onto PVDF membrane (YA1701, Solarbio). Then, the PVDF membrane was incubated with western blocking buffer (SW3010; Solarbio) for 2 h followed by incubating FOXP3 antibody (ab215206; 1:1000, 47 kDa, Abcam, Cambridge, UK), RoR-γt antibody (ab113434; 1:2000, 55 kDa, Abcam), and GAPDH antibody (ab8245; 1:10,000, 36 kDa, Abcam) for 16 h at 4 °C. On the second day, membrane was further incubated with relative goat-anti rabbit IgG (ab6721; 1:20,000, Abcam), goat-anti mouse IgG (ab6789; 1:10,000, Abcam), or donkey-anti goat IgG (ab6885; 1:10,000, Abcam) antibody for 2 h. At last, after the membrane was added with ECL Luminescent Liquid (M41129, MERYER), the protein signaling on the membrane was examined by Image Lab 3.0 detector (Bio-Rad, Hercules, California, USA).
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2

Western Blot Protein Analysis Protocol

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The total protein was lysed from cells in radio immuno precipitation assay buffer (R0010, Solarbio) with protease and phosphatase inhibitor (P1045, Beyotime, 1:50) for 30 min at 4°C, and then quantified with a BCA kit (PC0020, Solarbio). ColorMixed Protein Marker (PR1920, Solarbio) served as a protein size marker. Then, protein (20 μg) was isolated by 6–10% sodium dodecyl sulphate-polyacrylamide gel electrophoresis gels (P1200, Solarbio) and transferred onto immobilon-P polyvinylidene fluoride membranes (YA1701, Solarbio). Following incubation with 5% bovine serum albumin (SW3015, Solarbio) for 1 h at room temperature, the membranes were treated with primary antibodies (shown in Table 2) at 4℃ overnight, and then corresponding secondary antibody (shown in Table 2) for 2 h at room temperature. Visualization was achieved with ECL Western Blotting Substrate (PE0010, Solarbio). The intensity of protein band was determined by Quantity One Analysis Software (version 4.62; Bio-Rad Laboratories, Inc.).
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3

Liver Protein Expression Analysis

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Total protein was extracted from the liver tissue and HepG2 cells, and the total protein concentration was determined using the BCA method. Proteins were separated by 10% sodium dodecyl sulfate–polyacrylamide gel electrophoresis (SDS-PAGE) (P1200, Solarbio, China) and transferred to polyvinylidene fluoride (PVDF) membranes (ISEQ00010, Millipore, USA). The membranes were blocked with 5% nonfat milk (P0216-300g, Solarbio, China) containing 0.1% Tween® 20 (T8220, Solarbio, China). After washing with 0.1% Tris-buffered saline with Tween® 20 (TBST), the membranes were incubated with specific antibodies overnight. After being washed in TBST, the membranes were incubated with anti-rabbit immunoglobulin G (IgG) and horseradish peroxidase (HRP)-linked antibody diluted at 1:2000 (7074S, CST, USA) for 1-h. The protein expression was detected by a GelView system (6000plus, BLT, China), and immunoreactive bands were analyzed by ImageJ (ImageJ 1.45s, USA). The specific antibodies were against PPARα (ab24509, 1:500, Abcam, China), CPT1A (bs-2470r, 1:2000, Bioss, China), CD36 (bs-1100r, 1:2000, Bioss, China), and FABP1 (ab153924, 1:2000, Abcam, UK). β-actin (4970T, 1:3000, CST, USA) was used as an internal control.
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4

Western Blot Analysis of Proteins

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All proteins from cells or tumors were resolved by SDS-PAGE gel (P1200, Solarbio, Beijing, China) and transferred onto PVDF membranes (LC2002, Thermo, Waltham, US). Then, the membranes were blocked in 5% fat-free milk in TBST for 1 hour at room temperature and then washed, and primary antibodies were incubated at 4°C overnight. After being washed, the PVDF was incubated with horseradish peroxidase-conjugated secondary antibodies. The bands were visualized by ECL reagent (32106, Thermo). Antibodies are as follows: KIF11 (1 : 1000 dilution, ab61199, Abcam, Cambridge, UK); anti-β-actin (1 : 1000 dilution, ab5694, Abcam, Cambridge, UK).
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5

Western Blot Analysis of TTK, Ki67, and PCNA

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Cells were washed three times with cold PBS and lysed in RIPA (89900, Thermo, Waltham, USA) containing 1% PMSF (36978, Thermo, Waltham, USA), and then the cells were incubated on a shaking table in 4°C for 30 min. The lysate was centrifuged at 12000 r/min for 30 min at 4°C. 30 µg of protein, the concentration determined using Bradford assay (P0006, Beyotime, Shanghai, China), was electrophoresed by 10% sodium dodecyl sulfate-polyacrylamide gel electrophoresis (P1200, Solarbio, Beijing, China) at 90 V, and then transferred to PVDF (ARKEMA, Colombes, France) membranes at 250 mA for 130 min. The membranes were blocked with 5% non-fat milk for 1 h at room temperature after being washed three times with tris-buffered saline and Tween (TBST). Then, the PVDF was incubated overnight with primary antibodies on a shaking table at 4°C. Primary antibodies were: TTK (ab219068, 1 : 1000, Abcam, Cambridge, UK), β-actin (1 : 5000, KM9001T, Sungene, Tianjin, China), ki67 and proliferating cell nuclear antigen (PCNA) (1 : 1000, 9449T, 2586S, Cell Signaling Technology, Danvers, UK). Then, the second antibodies (1 : 10000, LK2003, Sungene, Tianjin, China) were incubated for 1 h on a shaking table at 37°C after washing three times with TBST. Finally, ECL reagents (35050, Thermo, Waltham, USA) were added to display strips and take pictures using an image capture system.
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6

Western Blot Analysis of Epithelial-Mesenchymal Markers

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After being separated by SDS-PAGE (P1200, Solarbio, China), total proteins were transferred onto PVDF membranes (Millipore, Billerica, MA, USA). Afterwards, membranes were incubated by primary antibodies at 4 °C overnight. Then the blots were then incubated with secondary antibody for 1 h at dark room after washed with PBS for three times. The primary antibodies were as follows: ZO-1 (ab276131, Abcam), E-cadherin (ab40772, Abcam), N-cadherin (ab76011, Abcam), Vimentin (ab92547, Abcam), Fibronectin, NAP1L2 (K21628-RNX, Biolab), HNRNPC, METTL14 (ab220030, Abcam), YY1 (ab109237, Abcam), MMP2 (ab92536, Abcam), MMP9 (ab76003, Abcam) and β-actin (ab8226, Abcam). Protein quantification was conducted by Immobilon Western Chemiluminescent HRP Substrate (Merck Millipore, Billerican MA, USA). The assay was independently carried out in triplicate.
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7

Protein Expression Analysis by Western Blot

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Cells and tissues were lysed using a high-efficiency RIPA lysis buffer (Solarbio). Protein separation was performed by SDS-PAGE (P1200, Solarbio). Following membrane transfer, primary antibodies were applied. These primary antibodies included anti-PD-L1 (ab282458, 1:1000, Abcam), anti-CNDP1 (ab155315,1:500, Abcam) and β-actin (ab8227, 1:1000, Abcam). Secondary antibodies were goat anti-rabbit IgG (ab6721, 1:2000, Abcam). Chemiluminescence was performed using the ECL chromogenic reagent, and bands were observed using an automated chemiluminescence analyser (PerkinElmer, Waltham, MA, USA).
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8

Protein Extraction and Western Blot Analysis

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Protein extraction from HCC cells was conducted using protein lysis buffer (ZD409, ZOMANBIO, Beijing, China) and a Total Protein Extraction Kit (BC3711, Solarbio, Beijing, China). The obtained proteins were separated via SDS–PAGE (P1200, Solarbio) and then transferred onto PVDF membranes (T2234, Thermo Fisher). Following blocking with 5% skimmed milk, the membranes were incubated with primary antibodies. Following this, the membranes underwent incubation with secondary antibodies for 1 h. Protein levels were determined using an enhanced chemiluminescence detection system, with β‐actin serving as the internal reference.
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9

Western Blot Analysis of Aortic Proteins

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Aorta tissues were homogenized in radioimmunoprecipitation assay (RIPA; Solarbio, R0010, Beijing) lysis buffer. Equal amounts of protein (40 μg) were extracted from the total aorta and separated by 10% SDS–polyacrylamide gel electrophoresis (Solarbio, P1200, Beijing). The proteins were then transferred to polyvinylidene fluoride (PVDF; Millipore, ISEQ00010, USA) membranes and blocked with 5% skim milk powder (BD, 232100). The following primary antibodies were incubated with PVDF membranes at 4°C overnight: NF-κB antibody (1 : 2000, GeneTex, GTX102090), anti-thioredoxin interacting protein (TXNIP) antibody (EPR14774) (1 : 1000, Abcam, ab188865), NLRP3 antibody (1 : 1000, GeneTex, GTX64347), anti-ASC antibody (1 : 200, Abcam, ab175449), caspase-1 antibody (14F468) (1 : 1000, GeneTex, GTX14367), IL-1β antibody (1 : 2000, GeneTex, GTX55675), and β-actin antibody (1 : 5000, GeneTex, GTX109639). The PVDF membranes were then extensively rinsed and incubated at room temperature with secondary antibodies (1 : 5000, Proteintech, SA00001-1, SA00001-2, Wuhan) for 1 h. A biomolecular imager (Fuji, LAS-4000, MINI, Japan) and QualityOne were used to scan and quantitate the membranes. All experiments were repeated 3 times.
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10

Protein Extraction and Western Blot Analysis

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The total protein of each group was extracted by a protein extraction kit (KGP250, KeyGEN, China) and quantified by a protein quantification kit (KGP902, KeyGEN, China). The protein sample size was 20 µg. The total protein was obtained by SDS‒PAGE (P1200, Solarbio, China), and the protein was transferred to solid-phase carrier PVDF membrane (IPFL00010, Millipore, Germany), and the primary antibody was added: anti-RAGE (ab216329, abcam, UK), anti-HMGB1 (6893, CST, USA), anti-IL-17RA (bs-2606R, Bioss, China), anti-TAK1 (ab109526, abcam, UK), anti-Phospho-TAK1 (bs-5435R, Bioss, China), anti-β-actin (bs-0061R, Bioss, China), incubated overnight at 4 °C, added secondary antibody: Goat anti-rabbit (bs-0295G, Bioss, China), Goat anti-mouse (bs-0296G, Bioss, China), incubated at room temperature for 40 min and added substrate (WBKLS0100, Millipore, Germany), developed by chemiluminescent image (A300, Azrue, USA).
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