Surface interaction between bacteria and phagocytic cells

Öhman, Lena; Maluszynska, G. M.; Magnusson, K.-E.; Stendahl, Olle

doi:10.1007/978-3-0348-9154-7_4

Cited by 10 publications

(13 citation statements)

References 53 publications

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“…Activation of complement also promotes phagocytosis. The complement components C3b and C3bi, generated on the surface of bacteria following antibody union, are recognized , respectively, by CR1 and CR3 receptors located on the neutrophil cell membrane (40). Non-immunological recognition consists of lectins and hydrophobic properties of cell surfaces.…”

Section: Opsonization and Phagocytosismentioning

confidence: 99%

Role of the neutrophil leucocyte in the local and systemic reactions during experimentally induced e.coli mastitis in cows immediately after calving

Burvenich

Paape

Hill

et al. 1994

Veterinary Quarterly

117

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Section: Opsonization and Phagocytosismentioning

confidence: 99%

Role of the neutrophil leucocyte in the local and systemic reactions during experimentally induced e.coli mastitis in cows immediately after calving

Burvenich

Paape

Hill

et al. 1994

Veterinary Quarterly

117

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“…If the bacteria interacting with the phagocytes resist ingestion and killing, a sustained activation with release and leakage of toxic oxygen metabolites, lysosomal enzymes and inflammatory mediators will occur (17). We could provide here the evidence that structures suggestive of lysosome were found extracellularly with intact membrane.…”

Section: Discussionmentioning

confidence: 75%

“…The main task for the phagocytic cells is to eradicate the invading microbes, either by extracellular or intracellular killing (17). If the bacteria interacting with the phagocytes resist ingestion and killing, a sustained activation with release and leakage of toxic oxygen metabolites, lysosomal enzymes and inflammatory mediators will occur (17).…”

Section: Discussionmentioning

confidence: 99%

Neutrophil Response to Nontypable Haemophilus influenzae in Respiratory Infections

Ahmed

Ichinose

Dai

et al. 1993

Microbiology and Immunology

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Sputa from patients with respiratory infections by nontypable Haemophilus influenzae (H. influenzae) were investigated by electron microscopy. The cell wall of H. influenzae appeared wavy and nonwavy. In the cell wall the peptidoglycan layer was ill-defined. These patients had adequate IgG response in the serum against H. influenzae. However neither capsule nor fimbriae were found. Different stages of phagocytosis and destruction of the bacteria by polymorphonuclear neutrophils (PMN) were observed. PMNs were also found to phagocytose the debris. Evidences were found that the debris is formed mainly by the destruction of polymorphonuclear neutrophil. Extracellular lysosomes were also observed, which may have a role in destruction of both bacteria and host tissue. It was concluded that nontypable H. influenzae are nonfimbriated and noncapsulated during infection. Debris are the end product of PMN destruction, and phagocytosis of debris by PMNs has a role in the pathogenesis of chronic respiratory diseases.

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“…It is difficult to assess which of these changes directly contributed to the enhanced survival of C. jejuni LOPEZ-3 and -8 in viuo. However, since surface hydrophobicity facilitates phagocytosi~,~~* 40741* 42 it is likely that the decreased cell-surface hydrophobicity of the variants contributed to their ability to avoid phagocytosis. The significance of the morphological alterations which occurred when strain LOPEZ was passaged through the embryos is unclear.…”

Section: Discussionmentioning

confidence: 99%

Characteristics of an avirulent Campylobacter jejuni strain and its virulence-enhanced variants

Field

Underwood

Payne

et al. 1993

Journal of Medical Microbiology

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Summary. The virulence of Campylobacter jejuni for 1 1 -day-old chick embryos is associated with the ability to invade the chorio-allantoic membrane, to resist phagocytosis and to survive and proliferate in vim. The pathogenicity of a well characterised avirulent C. jejuni strain was enhanced by passaging it intravenously and chorio-allantoically through chick embryos. The resulting isogenic variants had greatly increased ability to survive in vim. In this study, the morphological and cell-surface characteristics of the avirulent parental strain were compared with those of the more virulent variants to determine whether pathogenicity was associated with one or more cell-surface constituents. Changes associated with the increased virulence of the two variants included alterations in cultural and cellular morphology, loss of flagella, expression of a new outer-membrane protein, alterations in cell-surface carbohydrates and decreases in cell-surface hydrophobicity.

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Surface interaction between bacteria and phagocytic cells

Cited by 10 publications

References 53 publications

Role of the neutrophil leucocyte in the local and systemic reactions during experimentally induced e.coli mastitis in cows immediately after calving

Role of the neutrophil leucocyte in the local and systemic reactions during experimentally induced e.coli mastitis in cows immediately after calving

Neutrophil Response to Nontypable Haemophilus influenzae in Respiratory Infections

Characteristics of an avirulent Campylobacter jejuni strain and its virulence-enhanced variants

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