Multiplex assays for MMP were performed on PBMC culture supernatants and serum samples using human MMP multianalyte profiling base kit reagents and Protocol (Human Fluorokine MAP Base Kit, MMP Panel, Cat number LMP000) on the Bio-Rad Bioplex 200 platform.
Two multiplex assays based on the SNaPshot minisequencing approach were developed.
After testing the multiplex assay on smears, our first aim was to establish the limits of the PNA FISH method for a quantitative assessment of cells in a membrane.
The inflammatory cytokines IL-8, IL-1β, MIP-1β and MCP-1 were measured in undiluted monocyte supernatants using a multiplex assay on the BioPlex 2200 platform (Bio-Rad, Hercules, CA, USA), with commercial antibody-coated beads, standards, and reagents, according to the manufacturer's instructions (Bioplex human cytokine multiplex assay system, BioRad).
We ensured accurate comparisons by completing short tandem repeat analysis (STR) on all samples using ABIAmpFlSTR Profiler Plus PCR STR multiplex assay on an ABI 310 genetic analyzer (Applera Corporation).
Future studies applying the described SNP multiplex assay on nonhuman samples are necessary to elucidate potential reservoirs and to further understand the evolutionary dynamics between source and sink.
Lastly, to confirm the mRNA data with protein analysis, we performed a human multiplex assay on CM collected from the tumour cells.
Amplicons for 27 HPV types, HPV16E6, and β-globin was assayed for in a bead-based multiplex assay on a Magpix instrument (Luminex Corporation, Austin, TX) as previously described with the result given as median fluorescence intensity (MFI) 14, 16.
Secondly, these candidate genes, together with WIF1gene that we selected based on evidence from literature [ 19- 31], were evaluated in a multiplex assay on an additional 15 normal/cancer paired colonic tissues.
E-selectin, MPO, sICAM-1, and sVCAM-1 were measured in a multiplex assay on the Luminex platform as described by the manufacturer (Milliplex CVD Panel 1, Millipore, Copenhagen, Denmark).
