• Title/Summary/Keyword: Selectin

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Diagnostic and Prognostic Relevance of Bone Marrow Microenvironment Components in Non Hodgkin's Lymphoma Cases Before and After Therapy

  • Soliman, Amira H
    • Asian Pacific Journal of Cancer Prevention
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    • v.17 no.12
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    • pp.5273-5280
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    • 2016
  • Objective: To evaluate stromal cells of the bone marrow microenvironment (BMM) in bone marrow trephine biopsy (BMTB) specimens, with a focus on fibronectin, tumor necrosis factor- alpha (TNF-${\alpha}$) and L-selectin in Non-Hodgkin's lymphoma (NHL) patients, before and after therapy. Materials and Methods: A total of 80 de novo NHL patients, 64 with B-cell lymphomas 80%, (follicular cell lymphoma (FCL) in 32, chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL) in 12, and diffuse large cell lymphoma in 20) and 16 with T-cell lymphomas (20%) all diagnosed as T-Lymphoblastic lymphomas, were evaluated before and after therapy. For comparison, 25 age and sex matched BM donors, were included as a control group. BMTB material and BM aspirates were taken for morphological assessment of stromal cells, the plasma of these samples being examined for $TNF{\alpha}$ and L-selectin by ELISA, and fibronectin by radial immunodiffusion (RID). Results: BM stromal cells comprising reticular macrophages and fibroblasts were elevated in 53.3% of NHL cases at diagnosis, while BM fibronectin levels were decreased and BM $TNF{\alpha}$ and L-selectin were higher than in controls (p<0.05). In NHL cases, elevated values of BM $TNF{\alpha}$ and BM L-selectin were associated with signs of aggressive disease, including >1 extra nodal sites, detectable B symptoms, high grade, BM and CNS invasion, and a high International prognostic index (IPI) (p<0.05). Conclusion: BMM components, $TNF{\alpha}$, L-selectin and fibronectin, in NHL can be useful in evaluating disease activity, extent and response to treatment and as prognostic markers according to the IPI.

E-Selectin S128R Polymorphism is Associated with Cancer Risk: a Meta-analysis

  • Cheng, Da-Ye;Hao, Yi-Wen;Zhou, Wen-Ling;Ma, Yi-Ran
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.7
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    • pp.3247-3252
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    • 2014
  • Background: Genetic factors have been shown to play an important role in the development of cancers. However, individual studies may fail to completely demonstrate complicated genetic relationships because of small sample size. Therefore, we performed a meta-analysis to evaluate the association of E-selectin Ser128Arg (S128R) with cancer risk. Materials and Methods: A literature search in PubMed, Embase, Web of Science, Science Direct, SpringerLink, EBSCO, Wanfang, and Chinese National Knowledge Infrastructure databases was carried out to identify studies of the association between E-selectin S128R polymorphism and cancer risk. The odds ratio (OR) with 95% confidence intervals (95%CIs) were used to assess the strength of association. Results: A total of eight studies involving 1,675 cancer cases and 2,285 controls were included in the meta-analysis. In overall populations, S128R polymorphism seemed to be associated with cancer risk (Arg allele vs Ser allele: OR=1.65, 95%CI =1.33-2.04, p<0.01; Arg/Arg+Arg/Ser vs Ser/Ser: OR=1.87, 95%CI =1.48-2.36, p<0.01; Arg/Ser vs Ser/Ser: OR=1.80, 95%CI =1.51-2.14, p<0.01). Similarly, subgroup analysis by ethnicity and source of control also revealed that this polymorphism was related to cancer risk. Conclusions: Our meta-analysis revealed that there was association between the E-selectin S128R polymorphism and the risk of cancer. Further large and well-designed studies are needed to confirm this association.

γ-Irradiation Induced Adhesion Molecules are Reduced by Vitamin C in Human Endothelial Cells

  • Son, Eun-Wha;Kim, Byung-Oh;Pyo, Suh-Kneung
    • Biomolecules & Therapeutics
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    • v.12 no.3
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    • pp.145-150
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    • 2004
  • Inflammation is a frequent radiation-induced reaction following therapeutic irradiation. Treatment of human umbilical endothelial cells (HUVEC) with ${\gamma}$-irradiation (${\gamma}$IR) induces the expression of adhesion proteins such as intercellular adhesion molecule-1 (ICAM-1), vascular cell adhesion molecule-1 (VCAM-1), and E-selectin. Since the upregulation of these proteins on endothelial cell Surface has been known to be associated with inflammation, interfering with the expression of adhesion molecules is an important therapeutic target. In the present study, we demonstrate that vitamin C inhibits ${\gamma}$IR induced expression of ICAM-1, VCAM-1, and E-selectin on HUVEC in a dose- and time dependent manner. Vitamin C a1so inhibited the production of Nitric oxide (NO) induced by ${\gamma}$IR. These data suggest that vitamin C has therapeutic potential for the treatment of various inflammatory disorder associated with an increase of endothelial leukocyte adhesion molecules.

Myocardial Protection by Recombinant Soluble P-selectin Glyco-protein Ligand-1: Suppression of Neutrophil and Platelet Interaction Following Ischemia and Reperfusion

  • Ham, Sang-Soo;Jang, Yoon-Young;Song, Jin-Ho;Lee, Hyang-Mi;Kim, Kwang-Joon;Hong, Jun-Sik;Shin, Yong-Kyoo
    • The Korean Journal of Physiology and Pharmacology
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    • v.4 no.6
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    • pp.515-523
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    • 2000
  • Polymorphonuclear leukocytes (PMNs) play an important role in myocardial ischemia/reperfusion (MI/R) injury. Moreover, platelets are also important blood cells that can aggravate myocardial ischemic injury. This study was designed to test the effects of PMNs and platelets separately and together in provoking cardiac dysfunction in isolated perfused rat hearts following ischemia and reperfusion. Additional control rat hearts were perfused with $75{\times}10^6$ PMNs, with $75{\times}10^6$ platelets, or with $75{\times}10^6\;PMNs+75{\times}10^6$ platelets over a five minute perfusion followed by a 75 min observation period. No significant reduction in coronary flow (CF), left ventricular developed pressure (LVDP), or the first derivative of LVDP (dP/dt max) was observed at the end of the observation period in any non-ischemic group. Similarly, global ischemia (I) for 20 min followed by 45 minutes of reperfusion (R) produced no sustained effects on the final recovery of any of these parameters in any group of hearts perfused in the absence of blood cells. However, I/R hearts perfused with either PMNs or platelets alone exhibited decreases in these variables of $5{\sim}10%$ (p<0.05 from control). Furthermore, I/R hearts perfused with both PMNs and platelets exhibited decreases of 50 to 60% in all measurements of cardiac function (p<0.01). These dual cell perfused I/R hearts also exhibited marked increases in cardiac myeloperoxidase (MPO) activity indicating a significant PMN infiltration, and enhanced P-selectin expression on the coronary microvascular endothelium. All cardiaodynamic effects as well as PMN accumulation and P-selectin expression were markedly attenuated by a recombinant soluble PSGL-1 which inhibits selectin mediated cell adhesion. These results provide evidence that platelets and PMNs act synergistically in provoking post-reperfusion cardiac dysfunction, and that this may be largely due to cell to cell interactions mediated by P-selectin. These results also demonstrate that a recombinant soluble PSGL-1 reduces myocardial reperfusion injury by platelet and PMNs interaction.

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Effect of Rutin on Adhesion Molecules Expression and NO Production Induced by $\gamma$-irradiation in Human Endothelial cells

  • Son, Eun-Wha;Lee, Kang-Ro;Rhee, Dong-Kwon;Pyo, Suh-Kneung
    • Biomolecules & Therapeutics
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    • v.9 no.3
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    • pp.156-161
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    • 2001
  • Inflammation is a frequent radiation-induced following therapeutic irradiation. Treatment of human umbilical endothelial cells (HUVEC) with ${\gamma}$-irradiation (${\gamma}$IR) induces the expression of adhesion proteins such as intercellular adhesion molecule-1 (ICAM-1), vascular cell adhesion molecule-1 (VCAM-1), and E-selectin. Since the upregulation of these proteins on endothelial cell surface has been known to be associated with inflammation, interfering with the expression of adhesion molecules is an important therapeutic target. In the present study, we demonstrate that bioflavonoid rutin inhibits ${\gamma}$IR induced expression of ICAM-1, VCAM-1, and E-selectin on HUVEC in a dose- and time dependent manner. Rutin also inhibited ${\gamma}$IR induced production of NO. These data suggest that rutin has therapeutic potential for the treatment of various inflammatory disorder associated with an increase of endothelial leukocyte adhesion molecules.

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Inhibition of $\gamma$-Irradiation Induced Adhesion Molecules and NO Production by Alginate in Human Endothelial Cells

  • Son, Eun-Wha;Cho, Chul-Koo;Rhee, Dong-Kwon;Pyo, Suhk-Neung
    • Archives of Pharmacal Research
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    • v.24 no.5
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    • pp.466-471
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    • 2001
  • Inflammation is a frequent radiation-induced reaction following therapeutic irradiation. Treatment of human umbilical endothelial cells (HUVEC) with $\gamma$-irradiation ($\gamma$IR) induces the expression of adhesion proteins such as intercellular adhesion molecule-1 (VCAM-1 ), vascular cell adhesion molecule-1 (VCAM-1), and E-selectin. Since the upregulation of these proteins on endothelial cell surface has been known to be associated with inflammation, interioring with the expression of adhesion molecules is an important therapeutic target. In the present study, we demonstrate that high mannronic acid-containing alginate (HMA) inhibits $\gamma$IR induced expression of ICAM-1, VCAM-1, and E-selectin on HUVEC in a dose dependent manner. HMA also inhibited $\gamma$IR induced production of Nitric oxide (NO). These data suggest that HMA has therapeutic potential for the treatment of various inflammatory disorder associated with an increase of endothelial leukocyte adhesion molecules.

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Allicin Reduces Adhesion Molecules and NO Production Induced by γ-irradiation in Human Endothelial Cells

  • Son, Eun-Wha;Cho, Chul-Koo;Pyo, Suhkneung
    • IMMUNE NETWORK
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    • v.2 no.1
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    • pp.6-11
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    • 2002
  • Background: Inflammation is a frequent reaction following therapeutic irradiation. Since the upregulation of adhesion molecules on endothelial cell surface is known to be associated with inflammation, the expression of adhesion molecules is an important therapeutic target. Methods: Treatment of human umbilical endothelial cells (HUVECs) with ${\gamma}$-irradiation (${\gamma}IR$) induces the expression of adhesion proteins such as intercellular adhesion molecule-1 (ICAM-1), vascular cell adhesion molecule-1 (VCAM-1), and E-selectin. Changes in the expression of these proteins on ${\gamma}$-irradiated HUVECs which had been treated previously with allicin were measured by ELISA. Results: In the present study, we demonstrate that allicin inhibits the ${\gamma}IR$ induced expression of ICAM-1, VCAM-1, and E-selectin on HUVEC in a dose-dependent manner. Allicin was also found to inhibit the ${\gamma}IR$ induced production of nitric oxide (NO). Conclusion: These data suggest that allicin has a therapeutic potential for the treatment of various inflammatory disorders associated with increase numbers of endothelial leukocyte adhesion molecules.

Alteration of Cellular Adhesion Molecules during Aging and Their Modulation by Calorie Restriction

  • Zou, Yani;Kim, You-Jung;Kim, Ji-Young;Kang, Dae-Yoen;Kim, Nam-Deuk;Lee, Kyung-Hee;Chung, Hae-Young
    • Proceedings of the PSK Conference
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    • 2003.04a
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    • pp.221.2-222
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    • 2003
  • Expressions of cellular adhesion molecules (CAMs) are closely related to the formation of early atherosclerosis, an age-dependent vascular disorder. However. previous research provided only limited and conflicted reports on age-related alterations of CAMs' expressions and even much less is known the modulation of CAMs by calorie restriction (CR), In this study, expression of vascular cell adhesion molecule-1 (VCAM-1), intercellular adhesion molecule-1 (ICAM-1), E-selectin, P-selectin and platelet/endothelial cell adhesion molecule-1 (PECAM-1) in aorta and kidney were investigated by western blot and immuno-histochemical stain utilizing ad libitum (AL) and CR rat. (omitted)

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Anti-inflammatory Activities of Chopi (Zanthoxylum piperitum A.P. DC) Essential Oil: Suppression of the Inducible Nitric Oxide Synthase and Cellular Adhesion

  • Lee, Je-Hyuk;Chang, Kyung-Mi;Kim, Gun-Hee
    • Food Science and Biotechnology
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    • v.18 no.6
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    • pp.1371-1378
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    • 2009
  • The aim of this study is to elucidate the anti-inflammatory activities of chopi (Zanthoxylum piperitum A.P. DC.) essential oil. Essential oil (EO) of chopi was extracted by steam distillation method, and its major constituents were limonene and geranyl acetate. Chopi-EO decreased approximately 38% of nitrite production, as compared to the lipopolysaccharde (LPS)-induced nitrite production. However, chopi-EO and its components did not quench nitric oxide (NO) chemically in cellfree system, and markedly inhibited approximately 40.4% of inducible nitric oxide synthase (iNOS) mRNA transcription. In addition, the inhibition of E-selectin gene transcription by chopi-EO caused the suppression of cellular adhesion. These results suggest that chopi-EO may exert potential anti-immunological inflammatory activity.

Manassantin A and B Isolated from Saururus chinensis Inhibit $TNF-{\alpha}-Induced$ Cell Adhesion Molecule Expression of Human Umbilical Vein Endothelial Cells

  • Kwon Oh Eok;Lee Hyun Sun;Lee Seung Woong;Chung Mi Yeon;Bae Ki Hwan;Rho Mun-Chual;Kim Young-kook
    • Archives of Pharmacal Research
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    • v.28 no.1
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    • pp.55-60
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    • 2005
  • Leukocyte adhesion to the vascular endothelium is a critical initiating step in inflammation and atherosclerosis. We have herein studied the effect of manassantin A (1) and S (2), dineolignans, on interaction of THP-1 monocytic cells and human umbilical vein endothelial cells (HUVEC) and expression of intercellular adhesion molecule-1 (ICAM-1), vascular cell adhesion molecule-1 (VCAM-1), and E-selectin in HUVEC. When HUVEC were pretreated with 1 and 2 followed by stimulation with $TNF-{\alpha}$, adhesion of THP-1 cells to HUVEC decreased in dose-dependent manner with $IC_{50}$ values of 5 ng/mL and 7 ng/mL, respectively, without cytotoxicity. Also, 1 and 2 inhibited $TNF-{\alpha}-induceda$ up-regulation of ICAM-1, VCAM-1 and E-selectin. The present findings suggest that 1 and 2 prevent monocyte adhesion to HUVEC through the inhibition of ICAM-1, VCAM-1 and E-selectin expression stimulated by $TNF-\alpha$, and may imply their usefulness for the prevention of atherosclerosis relevant to endothelial activation.