Cellular Immobilization
Mostrando 13-24 de 25 artigos, teses e dissertações.
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13. Lung delayed-type hypersensitivity in stressed mice.
The influence of an immobilization stressor on lung cellular immune responses was studied. Delayed-type hypersensitivity to sheep erythrocytes was used to evaluate in vivo lung cellular immunity. Mice were sensitized intravenously and challenged intratracheally with sheep erythrocytes. Three hours prior to challenge all mice were injected intravenously with
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14. Acute stress-induced tissue injury in mice: differences between emotional and social stress
Emotional stress affects cellular integrity in many tissues including the heart. Much less is known about the effects of social stress. We studied the effect of emotional (immobilization with or without cold exposure) or social (intermale confrontation) stress in mice. Tissue injury was measured by means of the release of enzyme activities to blood plasma:
Cell Stress Society International.
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15. A mechanism converting psychosocial stress into mononuclear cell activation
Little is known about the mechanisms converting psychosocial stress into cellular dysfunction. Various genes, up-regulated in atherosclerosis but also by psychosocial stress, are controlled by the transcription factor nuclear factor κB (NF-κB). Therefore, NF-κB is a good candidate to convert psychosocial stress into cellular activation. Volunteers were su
The National Academy of Sciences.
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16. Surface Immobilization Antigen of the Parasitic Ciliate Ichthyophthirius multifiliis Elicits Protective Immunity in Channel Catfish (Ictalurus punctatus)
Channel catfish (Ictalurus punctatus) that survive infection with the parasitic ciliate Ichthyophthirius multifiliis acquire immunity to subsequent challenge and produce specific antibodies in serum that immobilize the parasite in vitro. Cellular surface protein antigens targeted by these antibodies are referred to as immobilization antigens (i-antigens). By
American Society for Microbiology.
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17. Contact inhibition of phagocytosis in epithelial sheets: alterations of cell surface properties induced by cell-cell contacts.
Contact inhibition of phagocytosis was found to be characteristic for epithelial sheets formed in cultures by several cell types: normal and transformed mouse kidney cells, and differentiated mouse hepatoma cells. In these sheets most central cells surrounded by other cells had very low phagocytic activity. In contrast, marginal cells having a free edge were
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18. An efficient proteomics method to identify the cellular targets of protein kinase inhibitors
Small molecule inhibitors of protein kinases are widely used in signal transduction research and are emerging as a major class of drugs. Although interpretation of biological results obtained with these reagents critically depends on their selectivity, efficient methods for proteome-wide assessment of kinase inhibitor selectivity have not yet been reported.
National Academy of Sciences.
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19. Coupling of Solar Energy to Hydrogen Peroxide Production in the Cyanobacterium Anacystis nidulans
Hydrogen peroxide production by blue-green algae (cyanobacteria) under photoautotrophic conditions is of great interest as a model system for the bioconversion of solar energy. Our experimental system was based on the photosynthetic reduction of molecular oxygen with electrons from water by Anacystis nidulans 1402-1 as the biophotocatalyst and methyl viologe
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20. TGFβ1 activates c-Jun and Erk1 via αVβ6 integrin
Transforming growth factor β (TGFβ) plays an important role in animal development and many cellular processes. A variety of cellular functions that are required for tumor metastasis are controlled by integrins, a family of cell adhesion receptors. Overexpression of αVβ6 integrin is associated with lymph node metastasis of gastric carcinomas. It has been
BioMed Central.
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21. Immobilized doxorubicin increases the complement susceptibility of human melanoma cells by protecting complement component C3b against inactivation.
Human melanoma cells resistant to killing by monoclonal antibody R24 plus human complement became susceptible after treatment with doxorubicin (adriamycin). Treatment with doxorubicin prevented the rapid degradation of surface-bound complement component C3b that has been identified as a protective mechanism of complement-resistant melanoma cells. Doxorubicin
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22. Trapping and Immobilization of Nippostrongylus brasiliensis Larvae at the Site of Inoculation in Primary Infections of Interleukin-5 Transgenic Mice
Interleukin-5 (IL-5) transgenic mice are highly resistant to primary infections with the intestinal nematode Nippostrongylus brasiliensis; few parasites are found in the intestines of infected animals, and egg production is minimal. While adult worms may be damaged in the intestine, larval migration, development, and viability may also be impaired in other t
American Society for Microbiology.
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23. Identification and characterization of two Campylobacter jejuni adhesins for cellular and mucous substrates.
Campylobacter jejuni is able to colonize the human intestinal mucosa and cause disease. For this reason, it was important to investigate mechanisms by which C. jejuni adheres to epithelial cells and intestinal mucus gel. All strains of C. jejuni used were able to adhere to INT 407 epithelial cells and mucus, but high adherence to one substrate did not necess
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24. Calbindin D28k targets myo-inositol monophosphatase in spines and dendrites of cerebellar Purkinje neurons
The Ca2+-binding protein calbindin D28k (CB) is vital for the normal function of the central nervous system but its specific functional role is largely unclear. CB is typically described as a mobile Ca2+buffer that shapes the spatiotemporal extent of cellular Ca2+signals. Recent biochemical data, however, indicate that CB also has characteristics of a Ca2+ s
National Academy of Sciences.