نتایج جستجو برای: exotoxin a
تعداد نتایج: 13432050 فیلتر نتایج به سال:
The dicarbonyl compound methylglyoxal is a natural constituent of Manuka honey produced from Manuka flowers in New Zealand. It is known to possess both anticancer and antibacterial activity. Such observations prompted to investigate the ability of methylglyoxal as a potent drug against multidrug resistant Pseudomonas aeruginosa. A total of 12 test P. aeruginosa strains isolated from various hos...
Cepharanthine, a biscoclaurine alkaloid, causes an 8-fold enhancement of the cytotoxic effect of a conjugate of epidermal growth factor (EGF) coupled with Pseudomonas exotoxin in HeLa cells. Cepharanthine also potentiates the effect of Pseudomonas exotoxin. Cepharanthine does not affect the binding and uptake of 125I-EGF by HeLa cells, but it delays the release of radioactivity associated with ...
The perception and response to cellular death is an important aspect of multicellular eukaryotic life. For example, damage-associated molecular patterns activate an inflammatory cascade that leads to removal of cellular debris and promotion of healing. We demonstrate that lysis of Pseudomonas aeruginosa cells triggers a program in the remaining population that confers fitness in interspecies co...
Many Gram-negative bacteria possess a type III secretion system (TTSS( paragraph sign)) that can activate the NLRC4 inflammasome, process caspase-1 and lead to secretion of mature IL-1beta. This is dependent on the presence of intracellular flagellin. Previous reports have suggested that this activation is independent of extracellular K(+) and not accompanied by leakage of K(+) from the cell, i...
We analyzed sera from 28 patients with various types of malignancies for the occurrence of antibodies against exotoxin A of Pseudomonas aeruginosa and two Pseudomonas proteases. A total of 27 of these individuals were colonized or infected with P. aeruginosa at one time or another during the study, whereas the remaining patient was colonized with four non-P. aeruginosa species of Pseudomonas. S...
The immunoprophylactic effect of chemically inactivated Pseudomonas aeruginosa exotoxin A in experimental pseudomonas infections was studied. Exotoxin A toxoids were prepared by Formalin (f-TXD) or glutaraldehyde (g-TXD) treatment. Immunization of mice with three or four doses (10 micrograms each) of f-TXD and the synthetic adjuvant N-acetylmuramyl-L-alanyl-D-isoglutamine (50 micrograms) induce...
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