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2 protocols using ab21593

1

Immunohistochemical Analysis of Mouse Joints

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Mouse joint and knee tissues were sectioned into 5 μm thick samples. Antigen retrieval was performed by incubating the section with 0.1% trypsin for 40 min at 37°C or with citrate buffer (pH 6.0) for 20 min at 95°C. Anti‐CD90.2 (140 301; BioLegend), anti‐CCL2 (ab25124, Abcam, Cambridge, UK), anti‐ CXCL1 (LS‐B13384; LifeSpan BioSciences, Inc. Seattle, WA, USA), anti‐IL‐6 (ab9324, Abcam), anti‐COX2 (SC‐1745, Santa Cruz Biotechnology, Dallas, TX, USA), anti‐MMP3 (ab52915, Abcam), anti‐MMP13 (ab51072, Abcam), anti‐elastase (Ab21593, Abcam), anti‐CD68 (ab31630, Abcam), anti‐pp65 (3033, Cell Signaling Technology) and anti‐cleaved caspase 3 (9664s, Cell Signaling Technology) were used in the analysis. All immunohistochemistry signals were quantified by ImageJ software v1.60 (NIH, Bethesda, MD, USA).
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2

Glycoprotein Analysis in Pancreatic Tissue

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These experiments were performed as we previously described21 (link)–23 (link). For Western blot, antibodies for GAPDH (sc-32233; Santa Cruz Biotechnology, Santa Cruz, CA, USA), Cosmc (sc-67480; Santa Cruz Biotechnology), CEL (ab79131; Abcam, Cambridge, UK; sc-34883; Santa Cruz Biotechnology), DMBT1 (MAB59151; R&D Systems, Minneapolis, MN, USA), elastase (ab21593; Abcam) and trypsin (ab166898; Abcam) were used. Ten micrograms per milliliter of Vicia villosa lectin (VVA) reactive against O-GalNAc (Tn antigen) (B-1235; Vector Laboratories, Burlingame, CA, USA) complexed with 1 µg streptavidin-HRP (21126; Pierce, Thermo Fisher Scientific, Grand Island, NY, USA) was used. For immunohistochemistry, antibodies for Tn Antigen (MA180055; Thermo Fisher Scientific, Grand Island, NY, USA), STn Antigen (ab115957; Abcam), insulin (8138; CST, Beverly, MA, USA) and VVA-fluorescein (FL-1231; Vector Laboratories) were used at a dilution of 1:10023 (link). Ten micrograms per milliliter of Sambucus nigra lectin (SNA) (B- 1305–2; Vector Laboratories, Burlingame, CA, USA) was complexed with 1 µg streptavidin-HRP. For real-time PCR, RNA was extracted with the RNeasy Plus Tissue Mini Kit (Qiagen).
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