Human DPPIV/CD26 Antibody

DPPIV/CD26 in Human Psoriatic Skin.

DPPIV/CD26 was detected in immersion fixed paraffin-embedded sections of human psoriatic skin using Goat Anti-Human DPPIV/CD26 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF1180) at 1 µg/mL overnight at 4 °C. Tissue was stained using the Anti-Goat HRP-DAB Cell & Tissue Staining Kit (brown; CTS008) and counterstained with hematoxylin (blue). Specific staining was localized to keratinocytes. View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections.

Detection of Human DPPIV/CD26 by Simple Western^TM.

Simple Western lane view shows lysates of LoVo human colorectal adenocarcinoma cell line, loaded at 0.2 mg/mL. A specific band was detected for DPPIV/CD26 at approximately 168 kDa (as indicated) using 2 µg/mL of Goat Anti-Human DPPIV/CD26 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF1180) followed by 1:50 dilution of HRP-conjugated Anti-Goat IgG Secondary Antibody (HAF109). This experiment was conducted under reducing conditions and using the 12-230 kDa separation system.

Detection of Human DPPIV/CD26 by Western Blot

Expression of different markers in the eight human colon cancer cell lines analyzed. (A) Western blot analysis of EpCAM, LGR5, CD26, E-cadherin and vimentin expression in total cell extracts from the eight cell lines (20 μg of protein in each line). Data shown are representative of three experiments. (B) E-cadherin and EpCAM expression analysis by immunofluorescence in HT-29 and Caco-2 cells. (C) CD44 and CD26 expression analysis by immunofluorescence in HT-29 and Caco-2 cells. (D) LGR5 expression analysis by immunofluorescence in DLD-1 and Caco-2 cells. Nuclei were stained with DAPI. Scale bars: 50 μm. Image collected and cropped by CiteAb from the following open publication (https://pubmed.ncbi.nlm.nih.gov/31285270), licensed under a CC-BY license. Not internally tested by R&D Systems.

Detection of Human DPPIV/CD26 by Immunocytochemistry/ Immunofluorescence

Comparison of histone modifier sets between two hepatic cell cultures.(A) Differentiation scheme of hESC towards Hepatocyte-like cells (Hep-like). (B) Hep-like cells were generated from hESC and stained with antibodies specific for DPP4 and albumin. Nuclei were stained with the DNA dye H-33342 (blue). Scale bars: 100 µm. (C) RT-qPCR data from three independent experiments for hepatic (ALB, CYP3A, CYP7A1, DPP4, HNF4, MET) and neuronal (TH, DCX, TUBB3) markers. Relative gene expression was calculated using hESC as a calibrator and a set of three reference genes (HPRT, RPL13A, GAPDH). (D) Transcript levels of epigenetic modifiers were measured by RT-qPCR in human liver (huHep), Hep-like islets (Hep-like) and embryonic stem cells (hESC). Data for huHep and Hep-like are indicated as relative change compared to hESC (as reference cell). For comparative display, a scatter plot was constructed so that differentially expressed genes that show pos. association (between Hep-like and huHep) are found in red fields, and those that differed in the sense of regulation fall into blue fields. Values of >10 were set to 10. For quadrant count ratio analysis (QCR) only expression values >2 or <−2 were included. (E) The data measured in D were plotted as heat map, sorted according to rel. huHep expression levels. Transcripts that were >2-fold higher expressed in tissue than in hESC are marked in red, >2-fold lower expression is marked in blue. The color scale ranges from a fold regulation of −20 (dark blue) to +20 (dark red). Measures of variance and p-values are indicated in the supplemental material, genes not regulated significantly (vs. hESC) are displayed as “n.s.”. Image collected and cropped by CiteAb from the following open publication (https://dx.plos.org/10.1371/journal.pone.0102035), licensed under a CC-BY license. Not internally tested by R&D Systems.

Detection of Human DPPIV/CD26 by Immunocytochemistry/ Immunofluorescence

Comparison of histone modifier sets between two hepatic cell cultures.(A) Differentiation scheme of hESC towards Hepatocyte-like cells (Hep-like). (B) Hep-like cells were generated from hESC and stained with antibodies specific for DPP4 and albumin. Nuclei were stained with the DNA dye H-33342 (blue). Scale bars: 100 µm. (C) RT-qPCR data from three independent experiments for hepatic (ALB, CYP3A, CYP7A1, DPP4, HNF4, MET) and neuronal (TH, DCX, TUBB3) markers. Relative gene expression was calculated using hESC as a calibrator and a set of three reference genes (HPRT, RPL13A, GAPDH). (D) Transcript levels of epigenetic modifiers were measured by RT-qPCR in human liver (huHep), Hep-like islets (Hep-like) and embryonic stem cells (hESC). Data for huHep and Hep-like are indicated as relative change compared to hESC (as reference cell). For comparative display, a scatter plot was constructed so that differentially expressed genes that show pos. association (between Hep-like and huHep) are found in red fields, and those that differed in the sense of regulation fall into blue fields. Values of >10 were set to 10. For quadrant count ratio analysis (QCR) only expression values >2 or <−2 were included. (E) The data measured in D were plotted as heat map, sorted according to rel. huHep expression levels. Transcripts that were >2-fold higher expressed in tissue than in hESC are marked in red, >2-fold lower expression is marked in blue. The color scale ranges from a fold regulation of −20 (dark blue) to +20 (dark red). Measures of variance and p-values are indicated in the supplemental material, genes not regulated significantly (vs. hESC) are displayed as “n.s.”. Image collected and cropped by CiteAb from the following open publication (https://dx.plos.org/10.1371/journal.pone.0102035), licensed under a CC-BY license. Not internally tested by R&D Systems.