Binding appears specific for this class of compound since no binding was seen with the unrelated compounds, tetracycline, ampicillin, ATP, BSA, and the PEG12 biotin linker.
Immunofluorescence staining and flow cytometry analysis with the FITC-labeled MAb and scFv demonstrated preserved immunoreactivity by binding to CA125 antigen expressed on the membrane of NIH OVCAR-3 cells, aNIH OVCAR-3ng was seen with SKOV3 cells (Figure 2andB, C).
No specific binding was seen with Ab4L linear at any concentration tested (Figure 3C).
Diminished binding was seen with cold competitive oligonucleotides, demonstrating that binding was specific (Figure 3F, lane 3).
No epithelial binding was seen with unspecific human IgG antibodies or FITC-labeled dextran used as controls (data not shown).
The results show that the proteins LipL32, Lp29, Lp49, LipL40, MLP36, rLIC10494, rLIC12730 and rLIC12238 were interacting with PLG, while no binding was seen with Lsa63, Lsa27, rLIC10509, MPL21, MPL17, rLIC12730 and rLIC12922 (Fig. 3A).
No binding was seen with cells adherent to 7F3-10F3 or 2F3-14F3; binding occurred with cells adherent to 1F3-C V89, 1F3-14F3, or 2F3-C V89; and a substrate of 1F3-C V89 best mimicked the patterns of binding exhibited by cells adherent to fibronectin.
No shift in UIC2 binding was seen with barasertib-hQPA treatment.
However, when these NECA derivatives were examined using confocal microscopy, no specific binding was seen with any of the ligands.
