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Anti integrin α5

Manufactured by Cell Signaling Technology
Sourced in Spain, Germany

Anti-Integrin α5 is a laboratory reagent that recognizes the α5 subunit of the integrin receptor. Integrins are transmembrane receptors that mediate cell-cell and cell-extracellular matrix interactions. The α5 subunit is a component of the α5β1 integrin, which binds to the extracellular matrix protein fibronectin.

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6 protocols using anti integrin α5

1

Immunohistochemistry and Flow Cytometry Protocols

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We used the following primary antibodies: anti-FN (1:1,000, Millipore, Burlington MA USA), anti-α-SMA-Cy3 conjugated (1:500, Sigma-Aldrich, St. Louis, MO USA), anti-paxillin (1:300, BD Transduction, Spain), anti-keratin 6 (1:500, Covance, Spain), anti p-Smad2/3 (1:300, Thermo Fisher, Spain), anti-α5 integrin (1:100, Cell Signaling Technology, The Netherlands) and anti-Ki67 (1:200, Abcam, Cambridge, UK). For flow cytometry, we used anti-α5 integrin (1:200 BD Pharmingen, Spain) and anti β3 integrin (1:200 BD Bioscience, Spain). Secondary antibodies: anti-rabbit Alexa Fluor 488 (1:400 Thermo Fisher, Spain) and anti-mouse Alexa Fluor 647 (1:500, Invitrogen). To stain the cytoskeleton, we used Rhodamine Phalloidin (1:500 Thermo Fisher). To stain nuclei, we used either DAPI (1:10,000, Thermo Fisher) or Hoechst (1:10,000, Thermo Fisher).
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2

Integrin and Vesicle Trafficking Imaging Protocol

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The following primary antibodies were used for immunoblotting: anti-α5-integrin (Merck Millipore), anti-αv-integrin (Abcam, Cambridge, UK), anti-β1-integrin (BD Transduction Laboratories, San Jose, CA, USA), anti-β3-integrin (Merck Millipore), anti-β5-integrin (Abcam), anti-pERK (Cell Signaling Technology, Danvers, MA, USA), anti-ERK (Cell Signaling Technology), anti-LAMP1 (Cell Signaling Technology) and anti-β-actin (Sigma-Aldrich). The following primary antibodies were used for immunofluorescence staining: anti-α5-integrin (Cell Signaling Technology), anti-αv-integrin (Cell Signaling Technology), anti-LAMP1 (Cell Signaling Technology), anti-EEA1 (Cell Signaling Technology), anti-Rab5 (Cell Signaling Technology), anti-Rab7 (Cell Signaling Technology), anti-Rab9 (Cell Signaling Technology) and anti-γ-H2AX (Merck Millipore).
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3

Immunoblotting Analysis of Cell Signaling

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Tissue samples were snap frozen and stored at − 80 °C or lysed in RIPA-buffer containing protease inhibitors and analyzed by immunoblotting. Primary antibodies used in this study were rabbit anti-zyxin (B71, provided by M. Beckerle, Huntsman Cancer Institute), anti-α-tubulin (#2144, Cell Signaling), anti-α-actinin (#A7811, Sigma-Aldrich), anti-FAK (#3285, Cell Signaling), anti-pFAK (Y397) (#44-624G, Thermo Fisher Scientific), anti-AKT (#9272, Cell Signaling), anti-pAKT (Ser473) (#9271, Cell Signaling), anti-Integrin α5 (#4705, Cell Signaling), anti-Integrin β1 (#9699, Cell Signaling), anti-Col1α2 (#sc-166865, Santa Cruz Biotechnology) and anti-LOX (sc-373995, Santa Cruz Biotechnology). HRP-conjugated anti-mouse (#4416, Sigma-Aldrich) and anti-rabbit (#6154, Sigma-Aldrich) antibodies were used as secondary antibodies and chemiluminescence was detected with the ImageQuant LAS mini system (GE Healthcare). Densitometric analysis was done with ImageJ.
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4

Western Blot Analysis of Cell Signaling

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Cells were washed with PBS and lysed with SDS lysis buffer. Frozen tissues were lysed using T-PER Tissue Protein Extraction Reagent (Thermo Fisher Scientific). Protein concentrations were determined using the Bradford assay (Bio-Rad). Equal amounts of protein from each sample were resolved by SDS-PAGE and transferred onto PVDF membranes (Millipore). Immunoblots were blocked by incubation in 5% skim milk in TBS-T (0.1% Tween 20) for 1 h at 25 °C. Membranes were incubated with the following primary antibodies: anti-TINAGL1 (1:1000; 12077-1-AP, Proteintech), anti-pFAK (1:1000; #3283; Cell Signaling Technology), anti-FAK (1:1000; #3285; Cell Signaling Technology), β-actin (1:10,000; sc-47778, Santa Cruz Biotechnology), anti-Twist (1:1000; ab49254, Abcam), anti-E-cadherin (1:500; #13-1700; Invitrogen), anti-N-cadherin (1:1000, ab18203, Abcam), anti-integrin β1 (1:1000; ab30394, Abcam), anti-integrin αv (1:1000; #4711, Cell Signaling Technology), anti-integrin α5 (1:1000; #4705, Cell Signaling Technology), and anti-GAPDH antibodies (1:20,000; Abc-1001, AbClon), followed by their corresponding HRP-conjugated secondary antibodies, anti-mouse (1:5000: #115-035-003, Jackson ImmunoResearch Labs) and anti-rabbit antibodies (1:4000; #Abc-5003, AbClon). Proteins were detected using AbSignal (Abclone).
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5

Western Blot Analysis of EDI3 Protein

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Whole cell lysates were collected in RIPA lysis buffer (1% (v/v) NP-40, 150 mM NaCl, 20 mM Tris/HCl (pH 7.4), 1 mM EDTA, 10 mM NaF, 1 mM ZnCl2, 1 mM MgCl2, 1 mM Na3VO4, 10% (v/v) Glycerol) with protease and phosphatase inhibitors (Sigma) and protein content was quantified using the BCA Protein Assay kit (Thermo Scientific). Protein samples were separated on 8% SDS polyacrylamide gels using the mini-PROTEAN Tetra Electrophoresis System (Bio-Rad) and transferred to PVDF membranes (Perkin-Elmer). Primary antibody incubation was performed overnight at 4°C with the following antibodies used at a dilution of 1:1,000 – custom-made mouse monoclonal anti-EDI3 (AMS Bio), anti-β-Actin (Sigma), anti-α-Tubulin, anti-Calnexin, anti-Integrin α5, anti-Integrin β1 (all from Cell Signaling). HRP-conjugated secondary antibodies (anti-rabbit IgG and anti-mouse IgG) were purchased from Cell Signaling and used at a dilution of 1:1,000 for 2 h at room temperature. All images were taken on a Vilber Fusion Fx7 imager (Vilber Lourmat) using chemiluminescence (Perkin-Elmer) for detection and bands were quantified using ImageJ software (National Institute of Health).
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6

Antibody Procurement for B19V Research

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The following primary antibodies were purchased: mouse monoclonal antibody of anti-B19V capsid (#MAB8292, clone 521-5D) and mouse anti–β-actin (#A5441) from MilliporeSigma; mouse monoclonal antibody against B19V conformational epitope in VP2 (MAB 860-55D) from MIKROGEN (Neuried, Germany); goat anti-AXL antibody (#AF154) from R&D Systems Minneapolis, MN); rabbit anti-AXL (#8661S, clone C89E7), anti-Ku80 (#2180), and anti-integrin α5 (#98204) from Cell Signaling Technology; and mouse anti-Flag (#200-301-B13) and rabbit anti-BrdU (#600-401-C29) from Rockland, Limerick, PA. Anti-B19V VP1u antibody was in-house prepared.
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