Immunomodulation by Bacteria and Their Products pp 231-273 | Cite as
Immunomodulating and Related Biological Activities of Bacterial Cell Walls and Their Components, Enzymatically Prepared or Synthesized
Abstract
In 1959, we isolated the cell walls of tubercle bacilli (BCG) which have long been known to have a strong immunoadjuvant activity, especially in the stimulation of cell-mediated immune responses, and elucidated the chemical and immunological properties of this cell wall fraction (32, 31). The most remarkable finding on the chemical composition of this subcellular fraction was that various lipids, especially ethanol-ether insoluble but chloroform-soluble lipids and bound lipids, which characterized tubercle bacilli were almost exclusively localized in their cell walls. It was also demonstrated that the cell walls were the most active fraction of subcellular components isolated from sonicated BCG cells, in inducing tuberculin hypersensitivity in guinea pigs and that the cell walls were involved in the development of an acquired cell-mediated resistance of mice to tuberculous infection.
Keywords
Cell Wall Bacterial Cell Wall Adjuvant Activity Muramyl Dipeptide Muramic AcidPreview
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References
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