Cadherins are expressed in tissue-restricted patterns and typically mediate homophilic adhesion. Cadherins also mediate lymphocyte adhesion, providing the opportunity for lymphocyte attachment to parenchymal cells. The best characterized example of lymphocyte adhesion to a tissue-specific cell adhesion molecule, as opposed to a vascular endothelial adhesion molecule, is the interaction between ...

Sickle red blood cells (SS-RBCs) have enhanced adhesion to the plasma and subendothelial matrix protein thrombospondin-1 (TSP) under conditions of flow in vitro. TSP has at least four domains that mediate cell adhesion. The goal of this study was to map the site(s) on TSP that binds SS-RBCs. Purified TSP proteolytic fragments containing either the N-terminal heparin-binding domain, or the type ...

Antigen-antibody systems provide the flexibility of varying the kinetics and affinity of molecular interaction and studying the resulting effect on adhesion. In a parallel-plate flow chamber, we measured the extent and rate of adhesion of rat basophilic leukemia cells preincubated with anti-dinitrophenyl IgE clones SPE-7 or H1 26. 82 to dinitrophenyl-coated polyacrylamide gel substrates in a li...

TM9 proteins form a family of conserved proteins with nine transmembrane domains essential for cellular adhesion in many biological systems, but their exact role in this process remains unknown. In this study, we found that genetic inactivation of the TM9 protein Phg1A dramatically decreases the surface levels of the SibA adhesion molecule in Dictyostelium amoebae. This is due to a decrease in ...

Introduction: Opium addiction can change immune response to Types of stress such as injury or trauma due to alterations in the in secretion status of cytokines in the body. In this study, effects of opium addiction on wound healing and post-operative adhesion bands were assessed after laparotomy. Materials and Methods: Male rats (n=20) were randomly divided into opium addicted (documented with ...

In eukaryotes, vesicle trafficking is regulated by the small monomeric GTPases of the Rab protein family. Rab11, (a subfamily of the Ypt/Rab gene family) an evolutionarily conserved, ubiquitously expressed subfamily of small monomeric Rab GTPases, has been implicated in regulating vesicular trafficking through the recycling of endosomal compartment. In an earlier communication, we have shown th...

Abstract Hexagonal crystal MgAlB 4 is a strengthening phase in Al matrix composites, which can significantly improve ultimate tensile strength. In this paper, the surface perform, interfacial bonding characteristic, fracture mechanism, and electronic properties of Al(111)/MgAlB (0001) interface were thoroughly investigated by first principles method. The results reveal that top-site bridge-site...

objective: different techniques have been suggested for the repair of bone defects at the injured sites. use of biomembranes, or application of plasma rich in growth factor (prgf) at the site of proliferation of osteoblasts are among the suggested techniques. the current study aimed to compare the biocompatibility of human periodontal ligament fibroblasts (hplf) cultured on hypro-sorb f, perica...

introduction: opium addiction can change immune response to types of stress such as injury or trauma due to alterations in the in secretion status of cytokines in the body. in this study, effects of opium addiction on wound healing and post-operative adhesion bands were assessed after laparotomy. materials and methods: male rats (n=20) were randomly divided into opium addicted (documented with ...

leukocyte adhesion deficiency type 1 (lad 1) is an autosomal recessive hereditary disorder resulting from deficiency of cd18, characterized by recurrent bacterial infections. we report two consanguineous patients with leukocyte adhesion deficiency type 1( lad1). these two infant boy patients were referred to us, within a short period of time, with the complaints of recurrent infections at the a...