Mast cells are well recognized as key cells in allergic reactions, such as asthma and allergic airway diseases. However, the effects of mast cells and TNF-alpha on T-helper type 2 (Th2) cytokine-dependent asthma are not clearly understood. Therefore, an aim of this study was to investigate the role of mast cells on Th2 cytokine-dependent airway hyperresponsiveness and inflammation. We used genetically mast cell-deficient WBB6F1/J-KitW/KitW-v (W/Wv), congenic normal WBB6F1/J-Kit+/Kit+ (+/+), and mast cell-reconstituted W/Wv mouse models of allergic asthma to investigate the role of mast cells in Th2 cytokine-dependent asthma induced by ovalbumin (OVA). And we investigated whether the intratracheal injection of TNF-alpha directly induce the expression of ICAM-1 and VCAM-1 in W/Wv mice. This study, with OVA-sensitized and OVA-challenged mice, revealed the following typical histopathologic features of allergic diseases: increased inflammatory cells of the airway, airway hyperresponsiveness, and increased levels of TNF-alpha, intercellular adhesion molecule (ICAM)-1, and vascular cellular adhesion molecule (VCAM)-1. However, the histopathologic features and levels of ICAM-1 and VCAM-1 proteins in W/Wv mice after OVA challenges were significantly inhibited. Moreover, mast cell-reconstituted W/Wv mice showed restoration of histopathologic features and recovery of ICAM-1 and VCAM-1 protein levels that were similar to those found in +/+ mice. Intratracheal administration of TNF-alpha resulted in increased ICAM-1 and VCAM-1 protein levels in W/Wv mice. These results suggest that mast cells play a key role in a Th2 cytokine-dependent asthma model through production of adhesion molecules, including ICAM-1 and VCAM-1, by liberation of TNF-alpha.
Animals ; Asthma/*immunology/metabolism/pathology ; Blotting, Western ; Bronchoalveolar Lavage Fluid/immunology ; Cytokines/*immunology ; Intercellular Adhesion Molecule-1/biosynthesis ; Lung/immunology/pathology ; Mast Cells/*immunology/metabolism ; Mice ; Ovalbumin ; Th2 Cells/*immunology ; Tumor Necrosis Factor-alpha/*metabolism ; Vascular Cell Adhesion Molecule-1/biosynthesis

OBJECTIVETo investigate the effects of interferon -alpha1b (IFN-alpha1b) on hepatic intercellular adhesion molecule-1 (ICAM-1) expression and serum HBV DNA in patients with chronic hepatitis B.

METHODSBefore and 6 months after IFN-alpha1b treatment, liver biopsy was performed in patients with chronic hepatitis B to detect the expression of ICAM-1 in the liver tissues using immunohistochemistry. Serum HBV load was detected with real-time fluorescence polymerase chain reaction.

RESULTCAM-1 expression in the liver tissue was significantly down-regulated after IFN treatment in patients with severe and moderate chronic hepatitis B (P<0.05). No significant variation was noted in the expression of ICAM-1 in the livers of patients with mild chronic hepatitis B after the treatment (P>0.05). In the patients weakly positive for ICAM-1 expression (+), serum HBV DNA varied scarcely after the treatment (P>0.05), while in the patients with strong ICAM-1 positivity (++, +++, or ++++), significant variation of serum HBV DNA occurred after the treatment (P<0.05 or P<0.01).

CONCLUSIONThe therapeutic effect of IFN-alpha1b is associated with the expression of ICAM-1 in the hepatocytes, and its expression might enhance the effects of IFN on HBV DNA in patients with chronic hepatitis B.

Adolescent ; Adult ; DNA, Viral ; blood ; Female ; Hepatitis B virus ; drug effects ; genetics ; Hepatitis B, Chronic ; blood ; drug therapy ; virology ; Humans ; Immunohistochemistry ; Intercellular Adhesion Molecule-1 ; biosynthesis ; Interferon-alpha ; therapeutic use ; Liver ; drug effects ; metabolism ; virology ; Male ; Middle Aged ; Polymerase Chain Reaction ; methods ; Viral Load ; Young Adult

OBJECTIVETo investigate the changes in the activity of nuclear factor-kappaB (NF-kappa B) in mice with dextran sulphate sodium (DSS)-induced rat colitis and its modulalorg effect on intercellular adhesion molecule-1 (ICAM-1) expression.

METHODSTwenty normal male mice were randomized into DSS group and normal saline (NS) control group according to a matched-pair design. From days 1 to 7, the mice in DSS group were subjected to oral administration of 5%DSS solution, and from days 8 to 20, NS was given instead, for a total of 3 cycles. In the control group, only NS was administered. The colonic pathology was observed using HE staining and the mucosa 1 damage was scored for each mouse. The DNA-binding activity of NF-kappa B was tested by electrophoretic mobility shift assay, and the expressions of ICAM-1 and NF-kappa B p65 were detected using immunohistochemistry.

RESULTSThe DNA-binding activity of NF-kappa B was significantly increased in DSS group as compared with NS group. ICAM-1 and p65 expressions were detected in the nuclei of the vascular endothelial and inflammatory cells, especially in the mucosa and submucosa, but such positive cells were seldom observed in NS group. A positive correlation was found between the DNA-binding activity of NF-kappa B and ICAM-1 expression.

CONCLUSIONNF-kappa B activation is an important event in the development of DSS-induced colitis in that activated NF-kappa B upregulates ICAM-1 expression during colonic inflammation.

Animals ; Colitis ; chemically induced ; metabolism ; DNA ; metabolism ; Dextran Sulfate ; Electrophoretic Mobility Shift Assay ; Immunohistochemistry ; Intercellular Adhesion Molecule-1 ; biosynthesis ; Male ; Mice ; Mice, Inbred BALB C ; NF-kappa B ; metabolism ; Protein Binding ; Random Allocation ; Transcription Factor RelA ; metabolism

OBJECTIVETo study the role of serum from asphyxiated neonates in the inducement of human renal proximal tubular epithelial cells (HK-2) adhesion to neutrophils and possible mechanisms.

METHODSHK-2 cells were cultured randomly with 20% serum from neonates (1, 3, and 7 days after asphyxia), pyrrolidine dithiocarbamate (PDTC) or placebo. The activity of myeloperoxidase (MPO), an indicator of adhesion ability of HK-2 cells to neutrophils in suspensions, was detected by the biochemistry assay. Intercellular adhesion molecule-1 (ICAM-1) and nuclear factor-kappaB (NF-kappaB) of HK-2 cells were examined with the immunohistochemical staining.

RESULTSThe expression of MPO in the post-asphyxial 1-day serum treatment group were significantly higher than that in the PDTC treatment and the control groups as well as the post-asphyxial 3 and 7-day serum treatment groups (P<0.01). The expression of ICAM-1 and NF-kappaB in the post-asphyxial 1-day serum treatment group was also significantly higher than that in the other groups (P<0.01).

CONCLUSIONSSerum from asphyxiated neonates can induce HK-2 cell adhesion to neutrophils, possibly through activating NF-kappaB and increasing the synthesis and expression of ICAM-1 on the surface of renal tubular epithelial cells.

Asphyxia Neonatorum ; blood ; complications ; Cell Adhesion ; Cells, Cultured ; Humans ; Infant, Newborn ; Intercellular Adhesion Molecule-1 ; analysis ; biosynthesis ; Kidney Tubules ; pathology ; NF-kappa B ; analysis ; metabolism ; Neutrophils ; physiology

OBJECTIVETo investigate the effect of Changyanqing decoction, a traditional Chinese medicinal preparation, on the expressions of interleukin-10 (IL-10) and intercellular adhesion molecule-1 (ICAM-1) in the colon mucosa of rats with ulcerative colitis.

METHODSThe rats with ulcerative colitis induced by trinitrobenzene sulphonic acid and ethanol enema were randomly divided into 3 groups, namely the model group, sulfasalazine (SASP) group, and Changyanqing decoction group. Daily treatment with intragastric administration and enema of normal saline, SASP (100 mg/kg), and Changyanqing decoction (39.75 mg/kg), respectively, were administered 24 h after the establishment of colitis till the end of the experiment. Another group of rats was used as the normal control group. The disease activity index (DAI) and colon mucosa damage index (CMDI) of the rats were calculated. The activity of myeloperoxidase (MPO) was measured by biochemical method, and the expressions of IL-10 and ICAM-1 protein were measured by ELISA and immunohistochemistry, respectively.

RESULTSCompared with the normal group, the model group showed significantly increased DAI, CMDI, HS score and MPO activity in the colon tissues (P < 0.01), with also significantly increased expression of ICAM-1 (P < 0.01) and decreased expression of IL-10 in the rat colon mucosa (P < 0.01). Treatment with Changyanqing decoction resulted in a significant reduction in DAI, CMDI, HS score and MPO activity (P < 0.01), and decreased the expression of ICAM-1 (P < 0.01) and increased the expression of IL-10 (P < 0.01) in the colon mucosa. The expression of ICAM-1 in the colon mucosa was positively correlated to that of IL-10 (r = 0.927, P < 0.01) and the activity of MPO (r = 0.621, P < 0.01).

CONCLUSIONSChangyanqing decoction has protective effect against rat ulcerative colitis, mediated probably by enhancement of IL-10 expression and reduction in ICAM-1 expression and neutrophil infiltration.

Animals ; Colitis, Ulcerative ; chemically induced ; drug therapy ; metabolism ; Drugs, Chinese Herbal ; therapeutic use ; Female ; Intercellular Adhesion Molecule-1 ; biosynthesis ; Interleukin-10 ; biosynthesis ; Intestinal Mucosa ; metabolism ; Phytotherapy ; Rats ; Rats, Sprague-Dawley ; Trinitrobenzenesulfonic Acid

OBJECTIVETo study the effect of Wenmaitong (WMT) and its disassembled formulas on the adhesion of monocytes to endothelial cells induced by hyperlipidemic serum to explore the mechanism of WMT on early arteriosclerosis obliterans (ASO).

METHODSSerums containing whole WMT and its disassembled formulas, including the formula consisted of warming Jing and boosting qi part (Wenjin Yiqi, WY) and that of promoting blood circulation part (Huoxue Tongmai, HT), as well as the serum contained high concentration of lipids were prepared conventionally, respectively. The adhesion of monocytes cell strain THP-1 to human umbilical vascular endothelial cells (HUVEC) was determined by rose bengal stain method, and ELISA was used to detect expressions of intercellular adhesion molecule (ICAM-1), vascular cellular adhesion molecule (VCAM-1) and P-selectin on HUVEC surface.

RESULTSWMT could inhibit THP-1 to HUVEC adhesion induced by hyperlipidemic serum, and down-regulate the expression of ICAM-1, VCAM-1, P-selectin on HUVEC surface, the two disassembled formulas could down-regulate different adhesion molecules.

CONCLUSIONOne mechanism of WMT on ASO may be its inhibition on arteriosclerosis by way of down-regulating the expression of vascular endothelial cells adhesion molecules to decrease the adhesion of monocyte to VEC, therefore to inhibit the monocytes migrating into vascular intima to develop foam cells.

Animals ; Cell Adhesion ; drug effects ; Cell Line ; Down-Regulation ; drug effects ; Drugs, Chinese Herbal ; pharmacology ; Endothelial Cells ; cytology ; drug effects ; metabolism ; Enzyme-Linked Immunosorbent Assay ; Humans ; Hyperlipidemias ; blood ; Intercellular Adhesion Molecule-1 ; biosynthesis ; Male ; Monocytes ; cytology ; drug effects ; metabolism ; Rabbits ; Serum ; Vascular Cell Adhesion Molecule-1 ; biosynthesis

OBJECTIVETo investigate the growth of craniopharyngioma involving the third ventricular floor with regard to the hypothalamus by detecting expressions of leukocyte common antigen (CD45) and intercellular adhesion molecule (ICAM-1) in the tumor tissue.

METHODSThe expressions of CD45 and ICAM-1 proteins in 30 craniopharyngioma samples with third ventricular floor involvement were detected by SP immunohistochemistry.

RESULTSThe inflammations labeled by CD45 were identified commonly in the craniopharyngioma tissues involving the third ventricular floor. The expression of ICAM-1 was mainly in the inner tumor cells and interstitial cells, but not detected in the basilar tumor cells growing toward the third ventricular floor. Adamantinomatous craniopharyngiomas showed markedly higher CD45 and ICAM-1 expressions than squamous papillary tumors (P<0.05).

CONCLUSIONInflammatory adhesion largely characterizes the growth of the craniopharyngioma tissues involving the third ventricular floor toward the hypothalamus without the tendency of invasion. The difference in the inflammation between the two types of craniopharyngioma may affect the prognosis of the patients.

Adolescent ; Adult ; Aged ; Brain Neoplasms ; metabolism ; secondary ; Child ; Craniopharyngioma ; metabolism ; pathology ; surgery ; Female ; Humans ; Hypothalamus ; metabolism ; pathology ; Immunohistochemistry ; Intercellular Adhesion Molecule-1 ; biosynthesis ; Leukocyte Common Antigens ; biosynthesis ; Male ; Middle Aged ; Neoplasm Invasiveness ; Pituitary Neoplasms ; metabolism ; pathology ; surgery ; Third Ventricle

OBJECTIVETo study the effects of volatie oil of Schizonepeta tenuifolia Briq herb and Saposhnikovia divaricata Schischke root (OSS) on proinflammatory cytokine expression and regulation in rats.

METHODOA and LPS were injected intravenously to rats to develop acute lung injury (ALI). The rats were treated with OSS (45.19 microL kg(-1)). The pathological sections of lung tissue were prepared and observed in acute lung injury rats. The expression of nuclear factor-kappa B p65 (NF-kappaB p65), intercellar adhesion molecule CD54, and NF-kappaB p65 mRNA were determined in lung cells.

RESULTvolatie oil of Schizonepeta tenuifolia Briq herb and Saposhnikovia divaricata Schischke root significantly inhibited the expression of CD54, the activation of NF-kappaB p65, and the transcription of NF-kappaB p65 mRNA.

CONCLUSIONOSS can reduce the expression of CD54 and NF-kappaB p65 protein synthesis, which may be its anti-inflammatory molecular mechanisms.

Animals ; Anti-Inflammatory Agents ; isolation & purification ; pharmacology ; Apiaceae ; chemistry ; Drug Combinations ; Gene Expression Regulation ; drug effects ; Immunohistochemistry ; Intercellular Adhesion Molecule-1 ; biosynthesis ; Lamiaceae ; chemistry ; Lipopolysaccharides ; Male ; Oils, Volatile ; isolation & purification ; pharmacology ; Oleic Acid ; Plant Oils ; isolation & purification ; pharmacology ; Plants, Medicinal ; chemistry ; RNA, Messenger ; biosynthesis ; genetics ; Random Allocation ; Rats ; Rats, Wistar ; Respiratory Distress Syndrome, Adult ; chemically induced ; metabolism ; prevention & control ; Transcription Factor RelA ; biosynthesis ; genetics

OBJECTIVETo investigate the effect of effective parts of Zingiber officinal (EPZ) on the adhesion of ECV-304 cells with monocytes cultivated in vitro and on the expression of monocyte chemotactic protein-1 (MCP-1) and adhesion molecules.

METHODThe model of ECV-304 cell oxidative stress injury was established by hydrogen peroxide (H2O2). Then EPZ-contained blood serum was taken as experimental drug. The adherence of monocytes to endothelial cell were measured by method of rose Bengal. The total RNA of cells was extracted. The intercellular adhesion molecule-1 (ICAM-1), vascular cell adhesion molecule-1 (VCAM-1) and MCP-1 mRNA expression in cells were detected by RT-PCR. MCP-1 protein expression were detected by ELISA.

RESULTEPZ could decrease the adhesion of monocytes with ECV-304 cells obviously. Meanwhile it could diminish the expression of ICAM-1, VCAM-1 and MCP-1 in injured ECV-304 cells.

CONCLUSIONEPZ could inhibit H2O2-induced ICAM-1, VCAM-1 and MCP-1 expression in ECV-304 and could inhibit the adherence of monocytes to endothelial cell, which may result in the protect effect in endothelial cells.

Animals ; Cell Adhesion ; drug effects ; Cell Line ; Cells, Cultured ; Chemokine CCL2 ; biosynthesis ; genetics ; Drugs, Chinese Herbal ; isolation & purification ; pharmacology ; Endothelial Cells ; cytology ; drug effects ; metabolism ; Enzyme-Linked Immunosorbent Assay ; Ginger ; chemistry ; Humans ; Hydrogen Peroxide ; pharmacology ; Intercellular Adhesion Molecule-1 ; biosynthesis ; genetics ; Monocytes ; cytology ; drug effects ; metabolism ; Plants, Medicinal ; chemistry ; RNA, Messenger ; biosynthesis ; genetics ; Random Allocation ; Rats ; Rats, Wistar ; Reverse Transcriptase Polymerase Chain Reaction ; Vascular Cell Adhesion Molecule-1 ; biosynthesis ; genetics

The house dust mite (HDM) is considered to be the most common indoor allergen associated with bronchial asthma. In this study, we investigated whether crude extract of the HDM Dermatophagoides farinae could activate human eosinophilic leukemic cells (EoL-1) to induce upregulation of cell-surface adhesion molecules. When EoL-1 cells were incubated with D. farinae extract, expression of intercellular adhesion molecule-1 (ICAM-1) significantly increased on the cell surfaces compared to cells incubated with medium alone. In contrast, surface expression of CD11b and CD49d in EoL-1 cells was not affected by D. farinae extract. In addition, pretreatment of cells with NF- kappaB inhibitor (MG-132) or JNK inhibitor (SP600125) significantly inhibited ICAM-1 expression promoted by HDM extract. However, neither p38 MAP kinase inhibitor nor MEK inhibitor prevented HDM-induced ICAM-1 expression in EoL-1 cells. These results suggest that crude extract of D. farinae induces ICAM-1 expression in EoL-1 cells through signaling pathways involving both NF- kappaB and JNK.
Animals ; Anthracenes/pharmacology ; Antigens, CD11b/biosynthesis ; Cell Line, Tumor ; Cell Membrane/metabolism ; Eosinophils/*metabolism ; Flow Cytometry/methods ; *Gene Expression Regulation ; Humans ; Integrin alpha4/biosynthesis ; Intercellular Adhesion Molecule-1/*metabolism ; Leukemia/*metabolism ; Leupeptins/pharmacology ; Mitogen-Activated Protein Kinase 8/metabolism ; NF-kappa B/metabolism ; Pyroglyphidae ; p38 Mitogen-Activated Protein Kinases/metabolism