ArticleClinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico2011
Maltose-binding protein isolated from Escherichia coli induces Toll-like receptor 2-mediated viability in U937 cells.
Article in Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed, 8 citations in OpenAlex.
- Escherichia coli Maltose-Binding Protein Induces M1 Polarity of RAW264.7 Macrophage Cells via a TLR2- and TLR4-Dependent Manner.International journal of molecular sciences · 2015Article
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8 authors at 2 institutions in 1 country.
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Abstract
backgroundStimulation of Toll-like receptors (TLRs) by microbial products has been utilised to potentiate immune responses against haematologic malignancies. The maltose-binding protein (MBP) of Escherichia coli could induce the activation of immune cells via TLR4. The aim of the present study was to investigate whether TLRs mediated the biological effects of MBP on U937 and Jurkat cells in vitro. METHODS We observed the effect of MBP on U937 and Jurkat cells by using the WST, cell cycle analysis and morphological observation. Further, cells were stimulated with MBP for indicated times and doses, and detected by RT-PCR, western blotting, immunohistochemistry and immunofluorescence staining to investigate the mechanisms involved in cell viability.
resultsMBP enhanced the viability of U937 and Jurkat cells, and the effects were blocked by anti-TLR2, but not anti-TLR4 in U937 cells. Further studies confirmed that MBP was able to directly bind to U937 and Jurkat cells and modulate TLR expression. The effects of MBP depended on the activation of NF-κB and MAP kinase in U937 and Jurkat cells.
conclusionsOur results demonstrated that MBP could directly promote U937 cell viability via TLR2. It suggested that MBP may be used as an adjuvant for participating in the immunotherapy of haematologic malignancies.
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