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16 protocols using anti dclk1

1

Comprehensive Antibody Characterization Protocol

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The primary antibodies used in this study were as follows: anti-BRG1 (EPNCIR111A) Abcam Cat# ab110641 (1:10,000); anti-Caspase3 (8G10), Cell Signaling Technology, Cat# 9665 (1:1000); anti-C-Caspase 3, Cell Signaling Technology, Cat# 9661 (1:1000); anti-PARP (46D11), Cell Signaling Technology, Cat# 9532 (1:1000); anti-Ki67 (B56), BD Biosciences, Cat# 550609 (1:500); anti-EpCAM (G8.8), BD Biosciences, Cat# 552370 (1:500); anti-ZO1, Invitrogen, Cat# 40-2200 (1:500); anti-8-OHd G, Abcam, Cat# ab48508 (1:500); anti-LC3A/B (D3U4C), Cell Signaling Technology, Cat# 12741 (1:1000); anti-ATG16L1 (D6A5), Cell Signaling Technology, Cat# 8089 (1:1000); anti-PCNA, Santa Cruz Biotechnology, Cat# SC-7909 (1:1000); anti-P-H3, Cell Signaling Technology, Cat# 9701 (1:1000); anti-E-Cadherin, Cell Signaling Technology, Cat# 3195T (1:1000); anti-DCLK1, Abcam, Cat# ab31704 (1:500); anti-Claudin1, Cell Signaling Technology, Cat# 4933T (1:1000); anti-ChgA, Abcam, Cat# ab715 (1:1000); anti-Hes1, Abcam, Cat# ab71559 (1:500). Raw data of immunoblotting can be found in the source data file.
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2

Immunofluorescence Imaging of Thymic Tissue

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Paraformaldehyde-fixed frozen tissues embedded in OCT compound (Sakura Finetek) were sliced into 10-μm-thick sections. The sections were stained with anti-CCL21 (Bio-Rad), anti-Aire (eBioscience), anti-Ly51 (Biolegend), anti-Krt14 (Biolegend), anti-DCLK1 (abcam), anti-CD4 (Biolegend), anti-CD8 (Biolegend) antibodies, anti-Foxn1 antiserum50 (link), and UEA-1 (Vector Laboratories). Images were analyzed with a TCS SP8 confocal laser scanning microscope (Leica).
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3

Antibody and Drug Protocol for Cancer Research

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Antibodies used in this study were obtained from commercial sources as follows: anti-β-catenin (610153; BD Transduction Laboratories), anti-Axin2 (76G2; Cell Signaling/WB; HPA042344; Sigma/IHC), anti-GFP (sc-9996; Santa Cruz), anti-GAPDH (Epitomics), anti-CD44-APC (C26; BD Pharmigen), APC mouse IgG2b k isotype control (BD Pharmigen), anti-DCLK1 (Abcam) and PE conjugated-goat anti-rabbit IgG H&L (Abcam). EGF, bFGF, and Wnt3a were obtained from R&D systems. Verapamil, Hoechst 33342, PI, KY02111, cisplatin, and oxaliplatin were purchased from Sigma. miR-103/107 precursors and miR-103/107 LNAs (antagomirs) were purchased from Ambion and EXIQON, respectively.
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4

Isolation and Characterization of Circulating Tumor Cells

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Antibodies used include: anti-CD44 (Cell Signaling Technology, Danvers, MA); anti-DCLK1, anti-CD45, anti-EpCAM, anti-CK19 and anti-GPCR GPR49 (Lgr5) (Abcam, Cambridge, MA); anti-AnxA2 (BD Biosciences, Carlsbad, CA), and anti-β-actin (total) (Sigma, St Louis, MO). Anti-PG antibody was generated in our laboratory as described [27 (link)). Alexa Fluor-594 and Alexa Fluor-488 coupled secondary IgG were from Invitrogen (Carlsbad, CA). Three kits from Stem Cell Technologies were used: 1) RosetteSep™ Human CD45 Depletion Cocktail (#1522), 2) RosetteSep™ Human Circulating Epithelial Tumor Cell Enrichment Cocktail (#15127), and 3) EasySep™ Human Whole Blood CD45 Depletion Kit (#18289), (Vancouver, Canada).
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5

Isolation and Analysis of Thymic Epithelial Cells

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For the analysis of thymic epithelial cells (TECs), minced thymuses were digested with 0.5 unit/ml Liberase (Roche) in the presence of 0.02% DNase I (Roche). Single-cell suspensions were stained with antibodies specific for EpCAM (BioLegend), CD45 (eBioscience), Ly51 (Biolegend), Podoplanin (Biolegend), I-Ab (BioLegend), and for the reactivity with UEA-1 (Vector Laboratories). For the analysis of Aire and DCLK1, surface-stained cells were fixed in 5% formaldehyde neutral buffer solution (Nacarai Tesque), permeabilized in 1x permeabilization buffer (eBioscience), and stained with anti-Aire (eBioscience) or anti-DCLK1 (abcam) antibody. For the isolation of TECs, CD45 cells were enriched in magnetic bead conjugated anti-CD45 antibody (Miltenyi Biotec). Multicolor flow cytometry and cell sorting were performed on FACSVerse, FACSAria II, and LSRFortessa (BD Biosciences).
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6

Immunofluorescence Analysis of Thymic Microenvironment

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Paraformaldehyde-fixed frozen tissues embedded in OCT compound (Sakura Finetek) were sliced into 10-μm-thick sections. The sections were stained with anti-CCL21 (Bio-Rad, Cat# AAM27, RRID:AB_2072089), anti-Aire (eBioscience, Cat# 50593482, RRID:AB_2574257), anti-Ly51 (BioLegend, Cat# 108312, RRID:AB_2099613), anti-Krt14 (BioLegend, Cat# 905304, RRID:AB_2616896), anti-DCLK1 (abcam, Cat# ab31704, RRID:AB_873537), anti-CD4 (BioLegend, Cat# 100533, RRID:AB_493372), anti-CD8 (BioLegend, Cat# 100701, RRID:AB_ 312740) antibodies, anti-Foxn1 antiserum (Itoi et al., 2007 (link)), and UEA-1 (Vector Laboratories, Cat# B1065, RRID:AB_2336766). Images were analyzed with a TCS SP8 confocal laser scanning microscope (Leica).
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7

Isolation and Characterization of Circulating Tumor Cells

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Antibodies used include: anti-CD44 (Cell Signaling Technology, Danvers, MA); anti-DCLK1, anti-CD45, anti-EpCAM, anti-CK19 and anti-GPCR GPR49 (Lgr5) (Abcam, Cambridge, MA); anti-AnxA2 (BD Biosciences, Carlsbad, CA), and anti-β-actin (total) (Sigma, St Louis, MO). Anti-PG antibody was generated in our laboratory as described [27 (link)). Alexa Fluor-594 and Alexa Fluor-488 coupled secondary IgG were from Invitrogen (Carlsbad, CA). Three kits from Stem Cell Technologies were used: 1) RosetteSep™ Human CD45 Depletion Cocktail (#1522), 2) RosetteSep™ Human Circulating Epithelial Tumor Cell Enrichment Cocktail (#15127), and 3) EasySep™ Human Whole Blood CD45 Depletion Kit (#18289), (Vancouver, Canada).
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8

Immunoblotting Analysis of Cellular Proteins

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Total crypt cellular or nuclear extracts (30–50 μg protein/lane), were subjected to SDS-PAGE and electrotransferred to nitrocellulose membrane. The membranes were blocked with 5% BSA or 5% nonfat dried milk in Tris-buffered saline (TBS) (20 mM Tris-HCl and 137 mM NaCl, pH 7.5) for 1 h at room temperature (21 °C). Immunoantigenicity was detected by incubating the membranes overnight with the appropriate primary antibodies (0.5-1.0 μg/ml in 5% BSA or 5% nonfat dried milk) and Western blot analysis was performed as described [10 (link)]. Antibodies used were anti-DCLK1 (1:1000, ab31704, ab109029) from Abcam, anti-p62/SQSTM1 (1:400, H00008878-M01), anti-LC3B (1:300, NB100-2220) from Novus Biologicals, anti-GAPDH(1:3000), anti-β-actin (1:5000), from Sigma-Aldrich, anti-EZH2 (1:000), anti-H3 (1:1000) were from Cell Signaling Technology.
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9

Quantification of Intestinal Tuft Cells

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Small intestines were collected, formalin fixed, and paraffin embedded. Paraffin sections (5 µm) were deparaffinized in xylene and rehydrated in an ethanol gradient. Antigen retrieval was performed in 10 mM sodium citrate buffer, pH 6.0, at 95°C for 20 min. Sections were stained with rabbit polyclonal anti-DCLK1 (1:1,000; Abcam) overnight at 4°C, followed by staining with Alexa Fluor 647–conjugated anti–rabbit secondary antibody (1:4,000; Molecular Probes), and counterstaining with DAPI (1:10,000; Sigma-Aldrich). Images were acquired with the Axio Scan Z.1 Slide Scanner (ZEISS). Quantification was performed blind by counting the total number of tuft cells per crypt-villus with the Zen Blue 2 software (ZEISS).
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10

Immunohistochemistry Assay for Stem Cell Markers

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Antibodies used in this study include: anti-DCLK1, anti-PCNA and anti-GPCR GPR49 (Lgr5) (Abcam, Cambridge, MA); anti-E-cadherin (Cell Signaling, Boston, MA); anti-active caspase-3 (Millipore, Temecula, CA) and anti-β-actin (total) (Sigma, St Louis, MO). Alexa Fluor-594 and Alexa Fluor-488 coupled secondary IgG were purchased from Invitrogen (Carlsbad, CA). DAPI (4',6-Diamidino-2-Phenylindole, Dihydrochloride) was purchased from Life Technologies (Grand Island, NY). Saline (0.9% Sodium Chloride Injection, USP) was purchased from Hospira (Lake Forest, IL). Thrombin peptide TP508, a 23 amino acid peptide AGYKPDEGKRGDACEGDSGGPFV, also known as rusalatide acetate or Chrysalin®, was synthesized and purified (GMP manufactured >96% purity) by American Peptide Company (Sunnyvale, CA) and provided by Chrysalis BioTherapeutics, Inc. (Galveston, TX).
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