US20110165626A1 – High Yield Production of Sialic Acid (Neu5ac) by Fermentation – Google Patents

This observation was further supported by the staining with fluorescently tagged lectin from Arachis hypogaea following neuraminidase treatment. TRITC-tagged lectin from Arachis hypogaea did not bind to treated cells (B), and the monolayer was not disrupted (C). Treated cells exhibited severely disrupted monolayers. B: Confluent monolayers of PAECs and PMVECs were treated with Texas Red-tagged…

For Testing Bioactivity of PolySia AvDP20

For experiments, PC-12 cells were collected via 0.25% trypsin (Gibco) and seeded for culturing in collagen IV (Sigma-Aldrich) coated 4-chamber slides (Nunc Lab-Tek, Merck). PC-12 cells grew as small clusters in suspension and were maintained in a density 5 × 105 cells/ml in culture flasks coated by 0.1% collagen type IV (Sigma-Aldrich). For testing bioactivity…

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Here, we show that treatment with a sialidase significantly improved the capacity of both immature and mature MDDCs to phagocytose Escherichia coli. Namely, neuraminidase-treated DCs show increased gene transcription of proinflammatory and Th1-promoting cytokines and induce greater proliferative responses of T lymphocytes. Dendritic cells (DCs) play an essential role in immunity against bacteria by phagocytosis…

Terminal Sialic Acids are an Important Determinant of Pulmonary Endothelial Barrier Integrity

This was followed by the addition of neuraminidase solution or buffer control to each well and continued resistance measurement 4 (or more) h. More specifically, following treatment with neuraminidase from Clostridium perfringens, the PAECs appeared to lose cell-cell contacts, resulting in rather evenly dispersed individual cells. In addition, among all other cell lines tested, AAV6…