{"title":"Unique structural and biological features of Helicobacter pylori lipopolysaccharides.","authors":"A P Moran, G O Aspinall","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":20686,"journal":{"name":"Progress in clinical and biological research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1998-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20497196","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M A Freudenberg, R Salômao, A Sing, I Mitov, C Galanos
{"title":"Reconciling the concepts of endotoxin sensitization and tolerance.","authors":"M A Freudenberg, R Salômao, A Sing, I Mitov, C Galanos","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":20686,"journal":{"name":"Progress in clinical and biological research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1998-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20497114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
F Stelter, M Bernheiden, R Menzel, S Witt, R S Jack, U Grunwald, X Fan, C Schütt
{"title":"The molecular basis for therapeutic concepts utilizing CD14.","authors":"F Stelter, M Bernheiden, R Menzel, S Witt, R S Jack, U Grunwald, X Fan, C Schütt","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The CD14 molecule is a key receptor on myeloid lineage cells involved in the recognition of lipopolysaccharide (LPS) and Gram-negative bacteria. The application of its soluble form, sCD14, has been shown to protect mice from lethality in LPS-induced shock. Therefore the protein or its derivatives may be considered as a possible therapeutic alternative for the treatment of patients suffering from Gram-negative septic shock. In this study we performed an alanine scan of amino acids 1 to 152 of human CD14. Twenty-three substitution mutants were generated and stably transfected into CHO-cells. In each mutant five amino acids were substituted by alanine. We analyzed (a) whether mutant proteins expressed on the surface of transfectants were recognized by a panel of anti-CD14 monoclonal antibodies (mAb's), (b) the ability of mCD14-mutants to bind LPS and E. coli in a serum- or LBP-dependent manner, and (c) the capacity of soluble mutants to mediate the LPS-induced IL 6 release of U 373 astrocytoma cells. Twenty-one CD14-mutants were expressed on the surface of transfectants and 18 were present as soluble forms in the culture supernatants. We demonstrated that only CD14(39-41,43-44)A completely lacked the ability to bind LPS and E. coli. In addition, a combined mutant CD14(9-13/57,59,61-63)A had very limited capacity to interact with LPS indicating that the LPS-binding site of human CD14 is a conformational epitope. Analysis of LPS-induced activation of CD14-negative U 373 cells revealed that the regions 9-13 and 91-101 are most important for sCD14-mediated signalling.</p>","PeriodicalId":20686,"journal":{"name":"Progress in clinical and biological research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1998-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20497118","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S Yamamoto, Y Tamura, Y Higuchi, N Takai, S Akizuki, M Kataoka, K Matsuura
{"title":"Roles of CD14 in LPS signaling and scavenging: analysis of CD14-transgenic and non-transgenic mice and rats in response to LPS.","authors":"S Yamamoto, Y Tamura, Y Higuchi, N Takai, S Akizuki, M Kataoka, K Matsuura","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":20686,"journal":{"name":"Progress in clinical and biological research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1998-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20497200","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Endotoxin and sepsis: molecular mechanisms of pathogenesis, host resistance, and therapy. Proceedings of the 4th Conference of the International Endotoxin Society. Nagoya, Japan, October 23-27, 1996.","authors":"","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":20686,"journal":{"name":"Progress in clinical and biological research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1998-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20587030","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Role of hepatocytes in the clearance of lipopolysaccharide and its clinical significance.","authors":"K Tanikawa, Y Mimura, S Sakisaka, K Noguchi","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":20686,"journal":{"name":"Progress in clinical and biological research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1998-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20497106","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Stimulation of human T lymphocytes by lipopolysaccaride (LPS) in the presence of autologous and heterologous monocytes.","authors":"T Mattern, H D Flad, A J Ulmer","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":20686,"journal":{"name":"Progress in clinical and biological research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1998-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20497112","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
R R Ingalls, M A Arnaout, R L Delude, S Flaherty, R Savedra, D T Golenbock
{"title":"The CD11/CD18 integrins: characterization of three novel LPS signaling receptors.","authors":"R R Ingalls, M A Arnaout, R L Delude, S Flaherty, R Savedra, D T Golenbock","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":20686,"journal":{"name":"Progress in clinical and biological research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1998-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20497202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Suppression of TNF and other proinflammatory cytokines by the tetravalent guanylhydrazone CNI-1493.","authors":"K J Tracey","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":20686,"journal":{"name":"Progress in clinical and biological research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1998-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20495697","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}