Thrombosis and Altered expression of Intercellular Adhesion Molecule-1 (Icam-1) after Avulsion Injury in Rat Vessels

2004 ◽  
Vol 29 (3) ◽  
pp. 228-232 ◽  
Author(s):  
N. ISOGAI ◽  
H. TANAKA ◽  
S. ASAMURA
Keyword(s):  
Mrna Expression ◽  
Adhesion Molecule ◽  
Microscopic Analysis ◽  
Intercellular Adhesion ◽  
Intercellular Adhesion Molecule ◽  
Intercellular Adhesion Molecule 1 ◽  
Post Injury ◽  
Electron Microscopic ◽  
Altered Expression ◽  
Avulsion Injury

This study was undertaken to characterize the relative degrees of arterial and venous trauma after graded avulsion injuries. Rat femoral arteries and veins were subjected to reproducible avulsion injuries using forces of between 60 and 220 g. Thrombotic occlusion occurred at lower avulsion forces in veins than in arteries. Histologic and scanning electron microscopic analysis indicated increased endothelial disruption and exposed elastic lamina with increasing avulsion force in both vessels, but more prominently in arteries. Intercellular adhesion molecule-1 (ICAM-1) mRNA expression was evident at 3 and 6 hours after avulsion injury in veins, but only with higher avulsion force injuries in arteries. ICAM-1 mRNA expression was not found in either vessel before or after this 3 to 6 hour post-injury interval. These results indicate that the amount of avulsion force to which traumatized extremity vessels are subjected has a direct effect on the degree of intimal injury and subsequent thrombosis.

Expression of intercellular adhesion molecule-1 (ICAM-1) in choriodecidua with labour and delivery at term and preterm

1999 ◽  
Vol 11 (5) ◽  
pp. 255 ◽  
Author(s):  
Keith W. Marvin ◽  
Jeffrey A. Keelan ◽  
Timothy A. Sato ◽  
Matthew A. G. Coleman ◽  
Lesley M. E. McCowan ◽  
...  
Keyword(s):  
Mrna Expression ◽  
Preterm Delivery ◽  
Adhesion Molecule ◽  
Preterm Labour ◽  
Intercellular Adhesion ◽  
Intercellular Adhesion Molecule ◽  
Northern Analysis ◽  
Leukocyte Infiltration ◽  
Intercellular Adhesion Molecule 1 ◽  
Spontaneous Labour

To evaluate the association between intercellular adhesion molecule-1 (ICAM-1) in the chorio-decidua and preterm labour and delivery, ICAM-1 mRNA abundance was assessed by northern analysis, and protein levels by ELISA, in samples of this tissue after term and preterm delivery. The median ICAM-1 mRNA expression following preterm delivery (PTD) was 4.8 and 3.8 times (P<0.05), respectively, those following elective Caesarean section prior to labour at term (CST) and following vaginal delivery after spontaneous labour at term (SLT). The concentration of ICAM-1 protein in the PTD samples was 2.2 and 3.0 times (P<0.05) those in CST and SLT samples, respectively. The differences between the term groups were not significant. The results were substantially the same when a preterm spontaneous labour (PTL) subgroup, exclusive of deliveries complicated by pre-eclampsia or intrauterine growth restriction, was compared with the term groups. Choriodecidual ICAM-1 mRNA expression, but not ICAM-1 protein concentration, significantly correlated to the degree of leukocyte infiltration of the PTD gestational membranes. Neither correlated significantly to clinical indications of intrauterine or neonatal infection. These findings indicate that ICAM-1 is expressed by the human choriodecidua and that this expression is elevated with preterm labour and delivery, particularly with increased leukocyte infiltration.

Control of islet intercellular adhesion molecule-1 expression by interferon-alpha and hypoxia

Diabetes ◽  
1996 ◽  
Vol 45 (10) ◽  
pp. 1336-1343 ◽  
Author(s):  
D. Chakrabarti ◽  
X. Huang ◽  
J. Beck ◽  
J. Henrich ◽  
N. McFarland ◽  
...  
Keyword(s):  
Interferon Alpha ◽  
Adhesion Molecule ◽  
Intercellular Adhesion ◽  
Intercellular Adhesion Molecule ◽  
Intercellular Adhesion Molecule 1

Piperine from Black Pepper Decreased the Expression of Intercellular Adhesion Molecule-1 in Macrophages

2020 ◽  
Vol 19 ◽  
Author(s):  
Nasser Gholijani ◽  
Esmaeil Hashemi ◽  
Zahra Amirghofran
Keyword(s):  
Flow Cytometry ◽  
Adhesion Molecule ◽  
Macrophage Polarization ◽  
Geometric Mean ◽  
Black Pepper ◽  
Intercellular Adhesion ◽  
Intercellular Adhesion Molecule ◽  
Intercellular Adhesion Molecule 1 ◽  
Therapeutic Benefits ◽  
Relative Fold Change

Background: Macrophages are the main players involved in inflammation. Intercellular adhesion molecule-1 (ICAM-1) facilitates macrophage polarization prior to extravasation into inflamed tissue. Piperine a natural product derived from black pepper possess useful biological and pharmacological activities. In current study, the possible anti-inflammatory effect of piperine on the expression of ICAM-1 on J774.1 murine macrophage cell line was investigated. Methods: Lipopolysaccharide (LPS)-stimulated J774.1 cells were cultured in the presence of different concentrations of piperine to examine the changes in ICAM-1 expression by real-time PCR and flow cytometry. Results: We found that piperine decreased ICAM-1 gene expression level from 2.4 ± 0.25 RFC (relative fold change) in LPS-only treated cells to 0.85 ± 0.525 RFC at 1μg/ml (p<0.05), 0.43 ± 0.27 RFC at 10μg/ml (p<0.01), and 0.26 ± 0.25 RFC at 20μg/ml (p<0.01). In flow cytometry, piperine at all concentrations significantly decreased ICAM-1 surface expressions (P<0.05). The geometric mean fluorescence intensity (g-MFI) in LPS-only treated cells (792 ± 57.3) decreased to 482±70 gMFI at 20 µg/ml piperine. Conclusion: According to the results of this study, by decreasing the expression of ICAM-1, piperine is suggested as a candidate to reduce inflammation and has the potential for therapeutic benefits for immune-mediated diseases.

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