cd18  (Proteintech)

Journal: MethodsX

Article Title: Feline leukocyte immunophenotyping: an optimised whole-blood flow cytometry protocol

doi: 10.1016/j.mex.2026.103869

Figure Lengend Snippet: Representative leukocyte-gated histograms illustrating antibody titration for feline leukocyte immunophenotyping. All histograms display singlet leukocytes, defined by FSC-A versus SSC-A morphological gating, followed by FSC—H versus FSC-A singlet discrimination. Titration was performed for CD18, CD21, CD45R, CD4, CD5 and CD8 monoclonal antibodies using three antibody volumes: 10 µL (1:10 dilution), 5.0 µL (1:20 dilution), 3.0 µL (1:33 dilution) and 1.5 µL (1:66 dilution). Minimal working volumes were selected based on optimal signal-to-noise ratios.

Article Snippet: Step 2 – Leukocytes extracellular staining Materials • EDTA Whole blood sample ± Transfix® • 200 μl pipettes • 100 μl pipettes • 10 μl pipettes • Flow cytometry tubes • Permanent marker • Cytometer tube rack Reagents • Monoclonal antibodies: ○ CD5 Anti-cat – clone FE1.1B11 (BIO-RAD®) ○ CD4 Anti-cat – clone vpg34 (BIO-RAD®) ○ CD8 Anti-cat alpha/beta purified – clone vpg9 (BIO-RAD®) ○ Rat Anti-Mouse IgG1 – clone X56 (BIO-RAD®) ○ CD18 Mouse Anti-Dog – clone CA1.4E9 (BIO-RAD®) ○ CD21 Mouse Anti-Dog – clone CA2.1D6 (BIO-RAD®) ○ CD45R Rat Anti-Mouse – clone RA3–6B2 (BIO-RAD®) • 10x Red blood cells (RBC) lysis buffer solution (BD FACSTM lysing solution) • PBS 1% solution Equipment • Countess TM 3 (Thermo Fisher Scientific, USA) • Freezer • Dark incubation chamber • Timer • Vortex (MX-S®, China) • Centrifuge (model 5810R, Eppendorf®, Germany) • Flow cytometry analyser BD FACSCanto II (Becton Dickinson (BD), San Jose, USA) Methods 1.

Techniques: Titration, Bioprocessing

Journal: Scientific Reports

Article Title: Cholangiocarcinoma derived exosomes attenuate the anti-tumor functions of NK cells

doi: 10.1038/s41598-026-36706-9

Figure Lengend Snippet: Effect of RBE-Exos on the adhesion of NK-92 cells. ( A ) Growth status of NK-92 cells. NK cells treated with RBE-Exos lost the normal cluster growing. ( B ) CD11a protein levels. ( C ) CD18 protein levels. ( D ) CD54 protein levels. Western blot showed that the protein levels of CD11a, CD18 and, CD54 were obviously decreased in NK-92 cells treated with RBE-Exos. ( E ) Relative transcriptional levels of CD11a , CD18 , CD54 and, CD2 in NK-92 cells. qRT-PCR displayed that RBE-Exos downregulated the transcriptional levels of CD11a , CD18 , CD54 , but not CD2 . Data were presented as mean ± SEM for three independent experiments. * P < 0.05, ** P < 0.01, and *** P < 0.001.

Article Snippet: The primary antibodies were as follows: rabbit anti-human CD63, BCL-2, BCL-XL, CD11a, β-actin (Abcam, USA), mouse anti-human HSP70 (Santa-Cruz, USA), rabbit anti-human CD18 (Proteintech, China), mouse anti-human CD54 (Proteintech, China).

Techniques: Western Blot, Quantitative RT-PCR

Journal: Scientific Reports

Article Title: Cholangiocarcinoma derived exosomes attenuate the anti-tumor functions of NK cells

doi: 10.1038/s41598-026-36706-9

Figure Lengend Snippet: Cytotoxicity and expression of adhesion molecules in primary NK cells. ( A ) Cytotoxicity of primary NK cells from CCA patients and healthy people against target cells. LDH detection displayed the cytotoxicity of NK cells from CCA patients was significantly lower than that of NK cells healthy people. Data are presented as the mean ± SEM from n = 3 independent experiments. ( B ) Protein levels of CD18 in primary NK cells from CCA patients and healthy people. Data are presented as the mean ± SEM from n = 3 independent experiments. ( C ) Protein levels of CD54 in primary NK cells from CCA patients and healthy people. Data are presented as the mean ± SEM from n = 3 independent experiments. ** P < 0.01.

Article Snippet: The primary antibodies were as follows: rabbit anti-human CD63, BCL-2, BCL-XL, CD11a, β-actin (Abcam, USA), mouse anti-human HSP70 (Santa-Cruz, USA), rabbit anti-human CD18 (Proteintech, China), mouse anti-human CD54 (Proteintech, China).

Techniques: Expressing