Adhesion factor

The paper presents a series of modified direct shear tests to investigate the interface shear strength between clay and nonwoven geotextile under different normal stresses and degrees of saturation.

14p vifilm 24-09-2024 1 1   Download

Integrin a2b1 is the major receptor for collagens in human tissues, being involved in cell adhesion and the control of collagen and collagenase gene expression. The collagen binding site of a2b1 has been localized to the a2 von Willebrand Factor type A (VWFA) domain (A-domain or I-domain) and the residues responsible for the interaction with collagen have been mapped. We report a study of a2 VWFA domain in which residue E318, which lies outside the collagen binding site, is mutated to tryptophan, showing that this is a gain-of-function mutation. ...

9p research12 01-06-2013 35 5   Download

Thea3b1 integrin is an adhesion receptor for extracellular matrix proteins including isoforms of laminin, and the changes of its expression level in various cancer cells are thought to cause their malignant phenotypes. We have cloned an approximately 4 kb DNA fragment of the 5¢-flanking region of the murinea3 integrin gene and analyzed its promoter activity.

9p research12 23-04-2013 36 3   Download

Cysteine-rich protein 61 (Cyr61/CCN1) is an angiogenic factor and a member of a family of growth factor-inducible immediate-early genes with functions in cell adhesion, pro-liferation and differentiation.We investigated the regulatory mechanisms and signaling pathways involved inCyr61/ CCN1gene activation in smoothmuscle cells.Treatment of these cells with sphingosine 1-phosphate (S1P), a bioactive lysolipid, increased rapidly but transiently the expression of theCyr61/CCN1gene at both themRNAandprotein levels....

14p tumor12 20-04-2013 36 2   Download

Tumor necrosis factor-a converting enzyme (TACE or ADAM17) is a member of the ADAM (a disintegrin and metalloproteinase) family of type I membrane proteins and mediates the ectodomain shedding of various membrane-anchored signaling and adhesion proteins. TACE is syn-thesized as an inactive zymogen, which is subsequently proteolytically processed to the catalytically active form.We have identified the proprotein-convertases PC7 and furin to be involved in maturation of TACE.

8p fptmusic 16-04-2013 37 3   Download

Several microbial pathogens have been reported to interact with glycosaminoglycans (GAGs) on cell surfaces and in the extracellularmatrix. Herewe demonstrate thatM protein, a major surface-expressed virulence factor of the human bac-terial pathogen, Streptococcus pyogenes, mediates binding to various forms of GAGs. Hence, S. pyogenesstrains expressing a large number of different types of M proteins bound to dermatan sulfate (DS), highly sulfated fractions of heparan sulfate (HS) and heparin, whereas strains deficient in M protein surface expression failed to interact with these GAGs. ...

9p fptmusic 16-04-2013 44 6   Download

The metalloproteinase pregnancy-associated plasma pro-tein-A (PAPP-A) cleaves a subset of insulin-like growth factor binding proteins (IGFBP), which inhibit the activities of insulin-like growth factor (IGF). Through this proteolytic activity, PAPP-A is believed to regulate IGF bioavailability in several biological systems, including the human repro-ductive system and the cardiovascular system. PAPP-A adheres to mammalian cells by interactions with glycos-aminoglycan (GAG), thus targeting the proteolytic activity of PAPP-A to the cell surface. ...

11p dell39 03-04-2013 53 5   Download

The transcription factor nuclear factorjB(NF-jB) is an activator of multiple cytokines, chemokines and adhesion molecules, which are important in inflammatory diseases such as asthma, and is consequently considered as an attractive therapeutic target. In the present study, a con-stitutively active dominant version of IjBa,IjBaDN, was introduced into A549 pulmonary cells by adenovirus-mediated delivery. The dominant IjB, but not a null viral vector, prevented the induction of NF-jB-dependent transcription by both tumor necrosis factora(TNFa)and interleukin-1b(IL-1b). ...

7p dell39 03-04-2013 34 4   Download

Insulin-like growth factor (IGF) binding protein-related protein-1 (IGFBP-rP1) modulates cellular adhesion and growth in an IGF⁄insulin-dependent or independent manner. It also shows tumor-suppressive activity in vivo. We recently found that a single-chain IGFB-rP1 is proteolytically cleaved to a two-chain form by a trypsin-like, endogenous serine protein-ase, changing its biological activities.

13p dell39 27-03-2013 42 4   Download

Urinary glycoproteins are important inhibitors of calcium oxalate crystal-lization and adhesion of crystals to renal cells, both of which are key mech-anisms in kidney stone formation. This has been attributed to glycosylation of the proteins. In South Africa, the black population rarely form stones (incidence

14p inspiron33 25-03-2013 30 3   Download

Expression of a previously cloned secretory protein named adrenocortical zonation factor 1 (AZ-1, also called Tin-ag-RP or lipocalin 7) is tightly linked with the zonal differentiation of adrenocortical cells. It is also pre-sent in vascular smooth muscle (VSM), although its function has remained unknown.

17p galaxyss3 21-03-2013 51 3   Download

Proteolytic processes in the extracellular matrix are a major influence on cell adhesion, migration, survival, differentiation and proliferation. The syndecan cell-surface proteoglycans are important mediators of cell spread-ing on extracellular matrix and respond to growth factors and other bio-logically active polypeptides.

14p viettel02 19-02-2013 43 4   Download

Growth factors are a group of proteins that regulate a wide variety of cel-lular processes, including proliferation, differentiation, motility, adhesion, and apoptosis of target cells. They play crucial roles in the formation and maintenance of tissue architecture in embryonic development and adult tissue homeostasis.

7p mobifone23 21-01-2013 40 5   Download

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Vascular endothelial growth factor regulates melanoma cell adhesion and growth in the bone marrow

14p dauphong6 05-01-2012 32 4   Download

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: nsulin augments tumor necrosis factor-alpha stimulated expression of vascular cell adhesion molecule-1 in vascular endothelial cells...

41p thulanh27 12-12-2011 48 5   Download

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Insulin augments tumor necrosis factor-alpha stimulated expression of vascular cell adhesion molecule-1 in vascular endothelial cells...

41p thulanh26 09-12-2011 34 5   Download

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài:Intestinal adhesion due to previous uterine surgery as a risk factor for delayed diagnosis of uterine rupture: a case report

3p toshiba24 07-12-2011 59 3   Download

Tuyển tập các báo cáo nghiên cứu về bệnh học thý y được đăng trên tạp chí Acta Veterinaria Scandinavica cung cấp cho các bạn kiến thức về bệnh thú yđề tài: Screening for bovine leukocyte adhesion deficiency, deficiency of uridine monophosphate synthase, complex vertebral malformation, bovine citrullinaemia, and factor XI deficiency in Holstein cows reared in Turkey...

8p coxanh_1 22-10-2011 55 5   Download

Harrison's Internal Medicine Chapter 109. Disorders of Platelets and Vessel Wall Disorders of Platelets and Vessel Wall: Introduction Hemostasis is a dynamic process in which the platelet and the blood vessel wall play key roles. Platelets become activated upon adhesion to von Willebrand factor (vWF) and collagen in the exposed subendothelium after injury. Platelet activation is also mediated through shear forces imposed by blood flow itself, particularly in areas where the vessel wall is diseased, and is also affected by the inflammatory state of the endothelium.

5p thanhongan 07-12-2010 93 6   Download

Figure 80-6 Oncogene signaling pathways are activated during tumor progression and promote metastatic potential. This figure shows a cancer cell that has undergone epithelial to mesenchymal transition (EMT) under the influence of several environmental signals. Critical components include activated transforming growth factor beta (TGF-β) and the hepatocyte growth factor (HGF)/c-Met pathways, as well as changes in the expression of adhesion molecules that mediate cell-cell and cellextracellular matrix interactions.

5p konheokonmummim 03-12-2010 89 5   Download