Przondo-Mordarska Anna, Smutnicka Danuta, Matusiewicz Katarzyna
Katedra i Zakład Mikrobiologii Akademii Medycznej we Wrocławiu.
Med Dosw Mikrobiol. 2003;55(2):135-46.
Colonisation and remaining of microorganism on mucus membrane of microorganism is tightly connected with adhesion mechanisms and determine the first step of physiological settlement of the organism or the first stage of clinically demonstrated infection. In Klebsiella rods there are known three types of fimbrial adhesins (type 1, 3 and KPF-28) and non-fimbrial adhesin CF29K. It is stated that Klebsiella strains adhesions are responsible for their adherence to the epithelial cells of both respiratory and urinary tracts and to intestine epithelium. The in vitro research affirmed Klebsiella rods adherence to protein matrix. The aim of our work was the establishment of character, receptor specificity and the appearance frequency of P-like called adhesin. The frequency of expression of P-like adhesin was estimated among 380 isolated from the patients strains on the basis of agglutinating methods. The amorphic character of P-like adhesin was proved using electron microscopy method. The isolation and purification of P-like protein with a help of affinity chromatography enabled to estimate the receptor specificity of the adhesin. The receptor specificity was established as similar to E.coli PapG adhesin.
微生物在黏膜上的定植和留存与黏附机制紧密相关,决定了生物体生理定居的第一步或临床显性感染的第一阶段。在肺炎克雷伯菌杆菌中,已知有三种类型的菌毛黏附素(1型、3型和KPF - 28)以及非菌毛黏附素CF29K。据称,肺炎克雷伯菌菌株的黏附作用使其能够黏附于呼吸道和泌尿道的上皮细胞以及肠道上皮。体外研究证实肺炎克雷伯菌杆菌能够黏附于蛋白质基质。我们研究的目的是确定类P黏附素的特性、受体特异性及其出现频率。基于凝集方法,在从患者菌株中分离出的380株菌株中估计类P黏附素的表达频率。使用电子显微镜方法证明了类P黏附素的无定形特性。借助亲和层析法分离和纯化类P蛋白,从而能够估计黏附素的受体特异性。已确定其受体特异性与大肠杆菌PapG黏附素相似。