The binding of platelets to components in the subendothelial matrix is an initial event in hemostasis and thrombosis. The glycoprotein components of the matrix are considered important in this interaction. Of these, collagen binds and activates platelets and induces their aggregation. In this study we demonstrate that substrate-bound laminin causes time- and concentration-dependent adherence of...

Periodontitis is a chronic inflammatory disease characterized by the destruction of supporting structures teeth. Its high prevalence and negative effects on quality life make it one current problems in dentistry. Porphyromonas gingivalis (P. gingivalis) predominant periodontal pathogen that expresses number virulence factors involved pathogenesis periodontitis. P. fimbriae are critical factor i...

One of the mechanisms by which normal hematopoietic progenitor cells remain localized within the bone marrow microenvironment is likely to involve adhesion of these cells to extracellular matrix (ECM) proteins. For example, there is evidence that uncommitted, HLA-DR-negative progenitor cells and committed erythroid precursors (BFU-E) bind to fibronectin. However, fibronectin is not known to med...

background one disadvantage of expressing heterologous proteins in escherichia coli is that the proteins are frequently expressed as insoluble inclusion bodies. to avoid this problem, heterologous proteins are typically expressed as a fusion protein. maltose binding protein (mbp) is one of the widely used partners for production of recombinant fusion proteins in e. coli. mbp is among the most e...

OBJECTIVES The periodic binding of protein expressed by Mycobacterium tuberculosis H37Rv with the host cell receptor molecules i.e. fibronectin (Fn) is gaining significance because of its adhesive properties. The genome sequencing of M. tuberculosis H37Rv revealed that the proline-glutamic (PE) proteins contain polymorphic GC-rich repetitive sequences (PGRS) which have clinical importance in pa...

Group A streptococci (GAS, Streptococcus pyogenes) and Group G streptococci (GGS, Streptococcus dysgalactiae ssp. equisimilis) adhere to and invade host cells by binding to fibronectin. The fibronectin-binding protein SfbI from GAS acts as an invasin by using a caveolae-mediated mechanism. In the present study we have identified a fibronectin-binding protein, GfbA, from GGS, which functions as ...

The pathogenic fungus Sporothrix schenckii is the causative agent of sporotrichosis. This subcutaneous mycosis may disseminate in immunocompromised individuals and also affect several internal organs and tissues, most commonly the bone, joints and lung. Since adhesion is the first step involved with the dissemination of pathogens in the host, we have studied the interaction between S. schenckii...

BACKGROUND Choline-binding proteins (CBPs) are a group of surface-exposed proteins, which play crucial and physiological roles in Streptococcus pneumoniae. The novel member of CBPs, choline-binding protein M (CbpM) may have binding activity to plasma proteins. This study aimed to clone and express CbpM and demonstrate its interaction with plasma proteins and patients' sera. METHODS The total ...

In multiple myeloma, malignant plasma cells are localized in marrow and rarely circulate in peripheral blood. To investigate the role of adhesion proteins in this process, we determined the expression and function of adhesion molecules on cell lines derived from patients with myeloma. The U266, ARH-77, IM-9, and HS-Sultan cell lines strongly expressed beta 1 and alpha 4 integrins (89% to 98% po...