Two recent papers in Cancer Cell (Lu et al., this issue of Cancer Cell, and Kang et al.) illustrate means whereby acquisition of VCAM-1 by tumor cells can promote metastasis. First, monocyte/macrophages expressing α4 integrin bind VCAM-1 and provide survival signals enhancing establishment of metastases. Second, VCAM-1 allows dormant tumor cells to interact with osteoclasts, yielding paracrine ...

Endothelial cell vascular cell adhesion molecule-1 (VCAM-1) activates adherent monocytes by clustering their very late antigen-4 (VLA-4) receptors, resulting in the modulation of the inwardly rectifying (I(ir)) and delayed rectifying (I(dr)) K(+) currents, hyperpolarization of the cells, and enhanced Ca(2+) influx (Colden-Stanfield M and Gallin EK. Am J Physiol Cell Physiol 275: C267-C277, 1998...

Soluble vascular cell adhesion molecule (sVCAM-1) and soluble intercellular adhesion molecule (sICAM-1) are adhesion molecules that are detectable in the serum of patients with cancer, cardiovascular diseases (CVD), and type 2 diabetes. This report describes enzyme-linked immunosorbent assays (ELISAs) on microplates for sVCAM-1 and sICAM-1. The ELISAs have the sandwich test format; polyclonal a...

A disintegrin and metalloproteinase with thrombospondin motifs 4 (ADAMTS-4) can effectively degrade articular cartilage matrix proteoglycan and damage the intervertebral disc of spinal tuberculosis patients, resulting in deterioration of the physical properties of articular cartilage. Transforming growth factor β activated kinase 1 (TAK1) is similar to vascular cell adhesion molecule 1 (VCAM-1)...

Sympathetic neurons innervate the heart early in postnatal development, an event that is crucial for proper modulation of blood pressure and cardiac function. However, the axon guidance cues that direct sympathetic neurons to the heart, and the neuronal receptors that recognize those cues, are poorly understood. Here we present evidence that interactions between the alpha4beta1 integrin on symp...

STUDY OBJECTIVES The mechanisms responsible for the accumulation of eosinophils in pleural fluid are not fully understood. The objective of the present study was to examine the relationship between pleural fluid eosinophilia and the levels of vascular cell adhesion molecule (VCAM)-1, eotaxin, RANTES (regulated upon activation, normal T-cell expressed and secreted), and interleukin (IL)-4 in ple...

BACKGROUND Anecdotal evidence suggests that male sex hormones are proatherogenic. We hypothesized that the male sex hormone receptor, the androgen receptor (AR), acts as a molecular switch in sex-specific inflammatory signaling in vascular cells. MATERIALS AND METHODS AR expression in human umbilical vein endothelial cells (HUVECs), human monocyte-derived macrophages (MDMs) or HeLa cells was ...

Leukocyte infiltration plays a major role in ischemia-associated organ dysfunction and damage. A crucial step for extravasation of white blood cells is binding of leukocyte β-integrins to endothelial adhesion molecules intercellular adhesion molecule-1 (ICAM-1) and vascular adhesion molecule-1 (VCAM-1). To test for direct effects of oxygen on this process we studied ICAM-1 and VCAM-1 expression...

Tetraspanins associate with several transmembrane proteins forming microdomains involved in intercellular adhesion and migration. Here, we show that endothelial tetraspanins relocalize to the contact site with transmigrating leukocytes and associate laterally with both intercellular adhesion molecule-1 (ICAM-1) and vascular cell adhesion molecule-1 (VCAM-1). Alteration of endothelial tetraspani...