0000000000114932

AUTHOR

Misao Matsushita

showing 2 related works from this author

H-ficolin (ficolin-3) concentrations and FCN3 gene polymorphism in neonates

2011

Serum H-ficolin (ficolin-3) concentrations (n=613) and FCN3 genotypes (n=529) from a large group of neonates are presented. Both pre-term deliveries and low birthweight (independently of gestational age) were significantly associated with low H-ficolin concentrations but not with heterozygosity for the FCN3 1637delC frameshift mutation. The presence of the variant allele, however, apparently influenced the protein level. No association of FCN3 gene heterozygosity or relative functional H-ficolin insufficiency (determined as serum level ≤8.6 μg/ml) with perinatal infections was found. One premature newborn, with confirmed infection caused by Streptococcus agalactiae, was H-ficolin-deficient …

MaleHeterozygotemedicine.medical_specialtyGenotypeImmunologyGestational AgeBiologymedicine.disease_causeMannose-Binding LectinStreptococcus agalactiaeFrameshift mutationLoss of heterozygosityPolymorphism (computer science)LectinsStreptococcal InfectionsInternal medicineGenotypemedicineHumansImmunology and AllergyFrameshift MutationAllelesGlycoproteinsMannan-binding lectinPolymorphism GeneticHomozygoteInfant NewbornHematologyInfant Low Birth WeightEndocrinologyStreptococcus agalactiaeMannose-Binding Protein-Associated Serine ProteasesImmunologyPremature BirthFemaleGene polymorphismFicolinImmunobiology
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New functional ligands for ficolin-3 among lipopolysaccharides of Hafnia alvei.

2011

Ficolin-1 (M), ficolin-2 (L), ficolin-3 (H) and mannan-binding lectin (MBL) activate the complement system and have opsonic activity. The specificity of ficolin-3 is poorly characterized and currently limited to a few ligands only. We present new specific targets for human ficolin-3, identified among lipopolysaccharides (LPSs, endotoxin) of Hafnia alvei. The interaction was restricted to LPSs of four strains: 23, Polish Collection of Microorganisms (PCM) 1200, PCM 1203 and PCM 1205 and limited to their O-specific polysaccharides (O-specific PSs) composed of different numbers of oligosaccharide (OS) repeating units (RUs). Moreover, these LPS/ficolin-3 complexes activated the lectin pathway o…

LipopolysaccharidesDisaccharideLigandsBiochemistrychemistry.chemical_compoundLectinsAnimalsHumansBovine serum albuminOpsoninchemistry.chemical_classificationbiologyLectinO AntigensComplement Pathway Mannose-Binding LectinHafnia alveiSerum Albumin BovineOligosaccharideComplement systemEndotoxinschemistryBiochemistryLectin pathwaybiology.proteinCattleFicolinGlycobiology
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