Clinical significance of serum intercellular adhesion molecule-1 detection in patients with hepatocellular carcinoma

INTRODUCTION Since the late 1980s,studies on the expression ofintercellular adhesion molecule-1(ICAM-1)inpatients with malignancies have demonstrated thatICAM-1 may strongly express in two forms in suchdiseases:membranous one on the surface of tumorcells(membrane-bound ICAM-1)and soluble one incirculation(soluble ICAM-1,sICAM-1).

A clinical evaluation of serum concentrations of intercellular adhesion molecule-1 in patients with gastric cancer

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The Value of the Soluable Intercellular Adhesion Molecule-1 Levels in Matermal Serum for Determination of Occult Chorioamnionitis in Premature Rupture of Membranes

To compare the diagnostic value of soluble intercellular adhesion molecule 1 (sICAM-1) with that of c-reactive protein (CRP) for detecting chorioamnionitis (CAM) in serum of women with premature rupture of membranes (PROM), 55 pregnant women with PROM, including 18 pregnant women with preterm premature rupture of membranes (PPROM) and 20 normal pregnant women at term (TPROM) were studied. Maternal serum were measured by Sandwish enzyme-linked immunoabsorbent assay (ELISA) for sICAM. CAM was histologically confirmed after delivery. The results revealed that (1) maternal serum levels of sICAM-1 and CRP were significantly higher in women with PROM than those without it; (2) maternal serum levels of sICAM-1 and CRP were significantly higher in women with CAM than those without it; (3) serum levels of sICAM-1 in PPROM women were similar to those in TPROM women, whereas serum levels of CRP in PPROM women were significantly higher than those in TPROM women; (4) the sensitivity, specificity, positive predictive value, negative predictive value, Kappa index and area under receiver operating characteristic (ROC) curve of maternal serum sICAM-1 (cutoff 104.7 ng/ml) and CRP(cutoff 1.03 mg/dl) for diagnosing CAM were 100 %, 91.2 %, 87.5 %, 100 %, 0.20, 0.995 and 81.0 %, 73.5 %, 65.4 %, 86.2 %, 0.13, 0.811, respectively; (5) among the mild histological CAM group, severe histological CAM group and clinical CAM group, the difference in maternal serum levels of sICAM-1 were significantly (P<0.001), with the order of concentration from high level to low level corresponding to the severity of CAM. It is concluded that maternal serum level of ICAM-1 is superior to that of CRP as biomarker for diagnosing intraamniotic infection in pregnant women with PROM.

Different expression pattern of serum soluble intercellular adhesion molecules-1 and neutrophilic expression of CD18 in patients with diabetic retinopathy

AIM: To investigate the levels of serum soluble intercellular adhesion molecules-1 (sICAM-1) and neutrophilic expression of CD18 in patients with various stages of diabetic retinopathy and to determine their different expression pattern in the development of diabetic retinopathy(DR). METHODS: Levels of serum sICAM-1 and CD18 on the surface of neutrophile were measured in 41 DR patients, they were classified in three subgroups according to the stage of retinopathy as determined by fund's ophthalmoscopy; 10 control subjects were also studied. sICAM-1 were measured by enzyme-linked immunosorbent assay and CD18 by flow cytometry. RESULTS: The neutrophilic CD18 expression and serum sICAM-1 level were all significantly elevated in all diabetic subgroups compared to control subjects (P <0.01). The differences of CD18 and sICAM-1 among the diabetic subgroups were significant in CD18 but not in sICAM-1. The progression of retinopathy was associated with an increase both in CD18 and in sICAM-1 levels by simple correlation analysis (beta =0.74, P<0.001; beta =0.38, P<0.01, respectively). But stepwise multiple regression analysis revealed that only CD18 Was independent determinant of retinopathy (beta =1.04, P<0.01). CONCLUSION: Our results confirm the contribution of endothelial and neutrophilic activation in the development of DR as indicated by increased levels of CD18 and sICAM-1. However, a direct implication of CD18 and ICAM-1 in the progression of DR can be supported only in the CD18 but not ICAM-1. CD18 and ICAM-1 may play different role in the development of diabetic retinopathy.

Soluble intercellular adhesion molecule-1,D-lactate and diamine oxidase in patients with inflammatory bowel disease

AIM:To study the levels of serum soluble intercellular adhesion molecule-1 (sICAM-1), plasma D-lactate and diamine oxidase (DAO) in patients with inflammatory bowel disease (IBD), and the potential clinical signif icance.METHODS: Sixty-nine patients with IBD and 30 healthy controls were included in this study. The concentration of sICAM-1 was detected with enzyme-linked immu-nosorbent assay, the level of D-lactate and DAO was measured by spectroscopic analysis, and the number of white blood cells (WBC) was determined by routine procedure.RESULTS:The levels of sICAM-l, DAO, and WBC in IBD patients were significantly higher than those in the control group (P<0.01). sICAM-l in IBD patients was found to be closely related to the levels of DAO and D-lactate (212.94±69.89 vs 6.35±2.35, P=0.000), DAO 212.94±69.89 vs 8.65±3.54, P=0.000) and WBC (212.94±69.89 vs 7.40±2.61, P=0.000), but no signif icant difference was observed between patients with ulcerative colitis and patients with Crohn's disease. The post-treatment levels of sICAM-l, D-lactate and WBC were significantly lower than before treatment (sICAM-l 206.57±79.21 vs 146.21±64.43, P=0.000), (D-lactate 1.46±0.94 vs 0.52±0.32, P=0.000) and (WBC 7.24±0.2.33 vs 5.21±3.21, P=0.000).CONCLUSION: sICAM-1, D-lactate and DAO are closely related to the specific conditions of IBD, and thus could be used as a major diagnostic index.

High level of intercellular adhesion molecule-1 affects prognosis of patients with hepatocellular carcinoma

AIM: To determine the cut-off value of intercellular adhesion molecule-1(ICAM-1) and assess the correlation of ICAM-1 with clinicopathological features and the prognosis of hepatocellular carcinoma(HCC)patients who underwent surgical resection.METHODS: We prospectively collected clinicopathological data from 236 HCC patients who had undergone successful hepatectomy. Receiver operating characteristic curve analysis was performed to determine the optimal cut-off value of ICAM-1. Enzymelinked immunosorbent assay was used to measure the concentration of ICAM-1 in 236 serum samples isolated from HCC patients and the stratified analysis was used to compare the serum level of ICAM-1 in different HCC subgroups. Immunohistochemistry was performed to test the expression level of the ICAM-1 protein in76 cases of HCC tissues and their adjacent normal liver tissues(ANLT). The survival probability of HCC patients was estimated using Kaplan-Meier plots and differences between the groups were obtained using the log-rank test. Furthermore, independent indicatorsof the prognosis were acquired using a stepwise Cox proportional hazard model to analyze a series of predictors that were associated with disease-free survival(DFS) and overall survival(OS) in HCC patients.RESULTS: Our findings suggested that ICAM-1promotes HCC metastasis and high serum ICAM-1 is significantly associated with alpha-fetoprotein(AFP)(P = 0.022), clinical tumor-node-metastasis stage(P< 0.001), portal vein tumor thrombus(P = 0.005),distant metastasis(P = 0.016) and recurrence(P= 0.034). We further detected the ICAM-1 protein in HCC specimens and found that 56 of 76(73.7%)HCC tissues had ICAM-1 positive staining while only23 of 76(30.3%) ANLT were positively stained(P <0.0001). Survival analysis indicated that HCC patients with increased ICAM-1 concentrations had significantly shorter DFS and OS after resection. A multivariate analysis showed that ICAM-1 > 684 ng/mL was an independent factor for DFS(HR = 1.643; 95%CI:1.125-2.401; P = 0.010) and OS(HR = 1.692; 95%CI:1.152-2.486; P = 0.007).CONCLUSION: ICAM-1 may be a promising serological biomarker for HCC diagnosis and an independent predictor of DFS and OS after surgical resection and may provide a useful reference for the prediction of intra- and extrahepatic metastasis.

Up-regulation of intestinal nuclear factor kappa B and intercellular adhesion molecule-1 following traumatic brain injury in rats

AIM: Nuclear factor kappa B (NF-κB) regulates a large number of genes involved in the inflammatory response to critical illnesses, but it is not known if and how NF-κB is activated and intercellular adhesion molecule-1 (ICAM-1)expressed in the gut following traumatic brain injury (TBI).The aim of current study was to investigate the temporal pattern of intestinal NF-κB activation and ICAM-1expression following TBI.METHODS: Male Wistar rats were randomly divided into six groups (6 rats in each group) including controls with sham operation and TBI groups at hours 3, 12, 24, and 72, and on d 7. Parietal brain contusion was adopted using weight-dropping method. All rats were decapitated at corresponding time point and mid-jejunum samples were taken. NF-κB binding activity in jejunal tissue was measured using EMSA. Immunohistochemistry was used for detection of ICAM-1 expression in jejunal samples.RESULTS: There was a very low NF-κB binding activity and little ICAM-1 expression in the gut of control rats after sham surgery. NF-κB binding activity in jejunum significantly increased by 160% at 3 h following TBI (P＜0.05 vs control), peaked at 72 h (500% increase)and remained elevated on d 7 post-injury by 390% increase. Compared to controls, ICAM-1 was significantly up-regulated on the endothelia of microvessels in villous interstitium and lamina propria by 24 h following TBI and maximally expressed at 72 h post-injury (P＜0.001). The endothelial ICAM-1 immunoreactivity in jejunal mucosa still remained strong on d 7 post-injury. The peak of NF-κB activation and endothelial ICAM-1 expression coincided in time with the period during which secondary mucosal injury of the gut was also at their culmination following TBI.CONCLUSION: TBI could induce an immediate and persistent up-regulation of NF-κB activity and subsequent up-regulation of ICAM-1 expression in the intestine.Inflammatory response mediated by increased NF-κB activation and ICAM-1 expression may play an important role in the pathogenesis of acute gut mucosal injury following TBI.

Mild hypothermia effects on intercellular adhesion molecule-1 and serum interleukin-6 expression in brain tissues of a rat focal ischemia model

BACKGROUND： Previous studies have confirmed the neuroprotective effect of mild hypothermia on ischemic brain injury. OBJECTIVE： To investigate the effects of mild hypothermia on intercellular adhesion molecule-1 expression and serum interleukin-6 levels in ischemic brain tissues of focal brain ischemia rats, and to explore the neuroprotective effects of mild hypothermia on ischemic brain injury. DESIGN, TIME AND SETTING： A randomized, controlled, neurobiological experiment was performed at the Central Laboratory, First Affiliated Hospital, Xinxiang Medical College, China from February to July 2006. MATERIALS： Thirty healthy, adult, Sprague Dawley rats were used to establish middle cerebral artery occlusion models using the suture method, The immunohistochemistry （streptavidin-biotin-peroxidase complex method） kit was purchased from Boster, China. Interleukin-6 radioimmunoassay was supplied by Institute of Radioimmunity, Technology Development Center, General Hospital of Chinese PLA. METHODS： The rats were equally and randomly assigned into mild hypothermia and control groups, and middle cerebral artery occlusion models were established. The rectal temperature was maintained at （37 ±0.5）℃ in the control group. In the mild hypothermia group, the rectal temperature was maintained at （33±1）℃. MAIN OUTCOME MEASURES： At 12 hours after model establishment, the ischemic brain hemispheres were coronally sliced at the level of the optic chiasm. The number of intercellular adhesion molecule-1-positive vessels per high-power field was observed with an optical microscope. Serum interleukin-6 levels were measured by radioimmunoassay. RESULTS： Compared with the control group, intercellular adhesion molecule-1 and serum interleukin-6 expressions were significantly decreased in ischemic brain tissues of the mild hypothermia group （P 〈 0.01）. CONCLUSION： Mild hypothermia exhibits a neuroprotective effect by reducing serum interleukin-6 and intercellular adhesion molecule-1 expression following cerebral ischemia.

InterInterleukin (IL)-4 Induces Production of Cytokine-induced Neutrophil Chemoattractants (CINCs) and Intercellular Adhesion Molecule (ICAM)-1 in Lungs of Asthmatic Rats

Summary： The present study aimed to examine the effect of intedeukin （IL）-4 on neutrophil chemo- taxis in airway inflammation in asthmatic rats and the possible mechanism. Male Wistar rats were intranasally instilled with recombinant rat （rr） IL-4 （rrlL-4） at different doses [2, 4 or 8μ g/animal, dis- solved in 200 μL normal saline （NS）] or rrlL-4 at 4 μg/animal （dissolved in 200 μL NS）. NS （200 μL） and LPS （6 mg/kg/animal, dissolved in 200 IxL NS） were intranasally given respectively in the negative and positive control groups. Moreover, the asthmatic lung inflammation was induced in rats which were then intranasally treated with rrlL-4 （4 μg/animal） or LPS （6 mg/kg/animal）. The normal rats treated with different doses of rrlL-4 and those asthmatic rats were sacrificed 6 h later. And animals instilled with rrlL-4 at 4 μg were sacrificed 6, 12 or 24 h later. The bronchoalveolar lavage fluid （BALF） and lungs were harvested for detection of leukocyte counts by Wright-Giemsa staining and lung histopa- thology by haematoxylin-eosin （HE） staining. The levels of cytokine-induced neutrophil chemoattrac- tant （CINC）-I and intercellular adhesion molecule （ICAM）-I in BALF were determined by ELISA. Real-time PCR was used to measure the mRNA expression of C1NCs （CINC-1, CINC-2u, CINC-2a, CINC-3） and ICAM-1 in lung tissues. The results showed that the intranasal instillation of IL-4 did not induce a recruitment of neutrophils in BALF in rats. However, IL-4 could increase the CINC-1 level in BALF in a dose-dependent manner at 6 h. But the mRNA expression levels of CINC-1, C1NC-2a, CINC-2, CINC-3 were not significantly increased in lungs of IL-4-treated rats relative to NS negative control group. Moreover, IL-4 was found to augment the mRNA expression oflCAM-1 in lungs and the ICAM-1 level in BALF at 6 h. However, the increase in CINC-1 and ICAM-1 levels in BALF of IL-4-treated asthmatic rats was not significantly different from that in untreated asthmatic rats. These findings indicate that IL-4 does not directly recruit neutrophils in the rat lungs, but it may contribute to airway neutrophilia through up-regulation of CINC-1 and ICAM-1.

Expression of Intercellular Adhesion Molecule-1 in Immune Response of Inner Ear

To understand the role of intercellular adhesion molecule-1 (ICAM-1) in immune response of the inner ear, inner ear immune response was induced in rats by inoculation of keyhole limpet hemocyanine (KLH) into the scala tympani of the animals who had been systemically sensitized. The expression of ICAM-1 in the inner ear was immunohistochemically examined. ICAM-1 was found in the epithelium of the spiral modiolar vein (SMV) with its collecting venules (CVs) as early as 6 h after challenge. Expression of ICAM-1 was observed on the epithelium of the endolymphatic sac (ES) and perisaccular region at 12 h. The intensity of ICAM-1 staining reached its peak within 24 - 48 h in these sites of the inner ear. By day 28, most specimens were devoid of appreciable staining for ICAM-1. Our study demonstrates that adhesion molecules play an important role in extravasation of inflammatory cells from the systemic circulation in the process of inner ear immune response. It also shows that cytokines that control expression of adhesion molecules may be released by cells outside ES, besides those cells in the ES.

Changes of soluble intercellular adhesion molecule-1 in the serum from patients with acute cerebral infarction

objective: To observe the changes of soluble intercellular adhesion molecule-1(sICAM-1) in the serum of patients with acute cerebral infarctlon (ACI) and their clinical significance. Methods: The concen-tration of sICAM-1 in the serum of 91 patients with ACI was determined with ELISA and then the results were compared wlth those of 43 patients with cerebral hemorrhage and 30 healthy individuals. Results: In the 24th hour after infarction. the concentration of sICAMu-1 in the serum was significantly higher in patients with ACI than in patients with cerebral hemorrhage and normal controls (P< 0. 01). In the patients with ACI, the concentration exhibited an decreasing tendency in the period from the 24th hour to the 14th day andwas correlated with the focal size of cerebral infarction. During the first 14 days after infarction, the concen-tration was significantly higher in the patients with the complication of infection than in those without. Con-clusion: sICAM-1 is closely correlated with clinical manifestation of ACI.

Ubiquitin Reduces Expression of Intercellular Adhesion Molecules and Tumor Necrosis Factor-α in Lung Tissue of Experimental Acute Lung Injury

Background Intercellular adhesion molecule-1 (ICAM-1) and vascular cell adhesion molecule-1 (VCAM-1) are two important cytokines in inflammatory response, which may induce rolling and adhesion of both leukocytes and lymphocytes, while modulating vascular permeability at the same time. These adhesion molecules usually serve as surrogate markers of activation and injury of vascular endothelial cells. Tumor necrosis factor-α (TNF-α) is a key factor to induce the expression and production of the above cell adhesion molecules. However, it remains to be elucidated whether exogenous ubiquitin exerts any effect on the cytokines in sepsis-induced ALI. Methods Sixty mice were devided randomly into five groups with twelve mice in each group, i.e. CLP group, SHAM group, UB1 group (10 mg/kg), UB2 group (5 mg/kg) and UB3 group(1 mg/kg). Mice of SHAM group underwent sham operation, and other four groups underwent CLP. Six hours after surgery, mice of three UB groups received ubiquitin by caudal vein injection while CLP and SHAM group received vehicle. Seven hours after surgery, blood and lungs of all mice were collected. ICAM-1, VCAM-1 and TNF-α level of 9% lung homogenate and serum TNF-α level were measured by ELISA. Results Pulmonary ICAM-1, VCAM-1 and TNF-α level of three UB groups were lower than CLP and SHAM group, and there were several comparisons with a statistically significant difference. Serum TNF-α level of three UB groups were slightly lower than CLP group, but far higher than SHAM group. Pulmonary ICAM-1 level, VCAM-1 level and serum TNF-α level of UB3 group were lower than UB1 and UB2 group, and there was a significant difference in VCAM-1 between UB3 and UB1 group. Pulmonary TNF-α level of UB3 group was slightly higher than UB1 and UB2 group.

Intercellular adhesion molecule-1 expression in the hippocampal CA1 region of hyperlipidemic rats with chronic cerebral ischemia

Chronic cerebral ischemia is a pathological process in many cerebrovascular diseases and it is induced by long-term hypedipidemia, hypertension and diabetes mellitus. After being fed a high-fat diet for 4 weeks, rats were subjected to permanent occlusion of bilateral common carotid arteries to establish rat models of chronic cerebral ischemia with hypedipiclemia. Intercellular adhesion molecule-1 expression in rat hippocampal CA1 region was determined to better understand the mechanism underlying the effects of hypedipidemia on chronic cerebral ischemia. Water maze test results showed that the cognitive function of rats with hyperlipidemia or chronic cerebral ischemia, particulady in rats with hypedipidemia combined with chronic cerebral ischemia, gradually decreased between 1 and 4 months after occlusion of the bilateral common carotid arteries. This correlated with pathological changes in the hippocampal CA1 region as detected by hematoxylin-eosin staining. Immunohistochemical staining showed that intercellular adhesion molecule-1 expression in the hippocampal CA1 region was noticeably increased in rats with hyperlipidemia or chronic cerebral ischemia, in particular in rats with hyperlipidemia combined with chronic cerebral ischemia. These findings suggest that hyperlipidemia aggravates chronic cerebral ischemia-induced neurological damage and cognitive impairment in the rat hippocampal CA1 region which may be mediated, at least in part, by up-regulated expression of intercellular adhesion molecule-l.

CIRCULATING INTERCELLULAR ADHESION MOLECULE 1 LEVELS IN SERA OF BRONCHIAL ASTHMA

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Relationship of plasma homocysteine, soluble intercellular adhesion molecule-1, high mobility group box 1 protein with carotid intima-media thickness in elderly patients with type 2 diabetes mellitus

Objective:To explore the relationship of plasma homocysteine(Hcy),soluble intercellular adhesion molecule-1(sICAM-1)and high mobility group box 1 protein(HMGB1)with carotid intima-media thickness(c-IMT)in elderly patients with type 2 diabetes mellitus.Methods:A total of 100 elderly patients who were diagnosed as type 2 diabetes mellitus in Baogang Hospital of Inner Mongolia from June 2017 to May 2020 were chosen as research objects.According to c-IMT,they were divided into the normal group(n=35),the mild to moderate group(n=41)and the severe group(n=24).The expression levels of plasma Hcy,sICAM-1 and HMGB1 were compared between groups respectively.Pearson’s correlation coefficient was used to analyze the relationship of plasma Hcy,sICAM-1,HMGB1 with c-IMT.Results:The comparison in plasma Hcy,sICAM-1,HMGB1 and c-IMT among the three groups of patients was of statistical significance(p<.05).The results of correlation analysis showed that the expression levels of plasma Hcy,sICAM-1 and HMGB1 were positively correlated with c-IMT in elderly patients with type 2 diabetes mellitus(r=.627,.598,.614;p<.05).Conclusions:The expression levels of plasma Hcy,sICAM-1 and HMGB1 are abnormally increased in elderly patients with type 2 diabetes mellitus,and related to c-IMT,which can provide a strong evidence for clinical diagnosis and treatment by detecting their levels in clinical practice.

升阳除湿防风汤联合化疗治疗晚期胃癌疗效及对患者血清CA72-4、sICAM-1的影响

目的:观察升阳除湿防风汤联合化疗治疗晚期胃癌患者的临床疗效及血清糖类抗原72-4(CA72-4)、可溶性细胞间黏附分子-1(sICAM-1)变化。方法:选择86例晚期胃癌患者,根据治疗方法将其分为两组,各43例,化疗组给予常规化疗治疗,观察组在化疗组基础上给予升阳除湿防风汤治疗,比较两组客观缓解率(ORR)、疾病控制率(DCR)、中医症状积分、血清CA72-4、sICAM-1水平、T淋巴细胞亚群指标(CD3^(+)、CD4^(+)、CD8^(+)、CD4^(+)/CD8^(+))、不良反应总发生率。结果:观察组ORR、DCR均较化疗组更高(P<0.05)。观察组治疗后畏寒肢冷、脘腹胀满、恶心呕吐、神疲乏力积分均较化疗组更低(P<0.05)。观察组治疗后血清CA72-4、sICAM-1水平均较化疗组更低(P<0.05)。观察组治疗后CD3^(+)、CD4^(+)、CD4^(+)/CD8^(+)均较化疗组更高(P<0.05),CD8^(+)较化疗组更低(P<0.05)。观察组血小板减少、贫血、脱发、恶心、呕吐总发生率与化疗组比较,差异无统计学意义(P>0.05)。结论:升阳除湿防风汤联合化疗可有效提高晚期胃癌客观缓解率、疾病控制率,缓解脘腹胀满等症状,改善免疫功能,纠正免疫失衡,降低血清CA72-4、sICAM-1表达量,且未增加不良反应发生率。

Expression of intercellular adhesive molecule-1 in liver cancer tissues and liver cancer metastasis

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血浆ET-1、D-D、sVCAM-1、ICAM-1水平预测突发性耳聋患者预后的价值

目的探讨血浆内皮素-1(ET-1)、D-二聚体(D-D)、血浆可溶性血管细胞黏附分子-1(sVCAM-1)、细胞间黏附因子-1(ICAM-1)在预测突发性耳聋患者预后方面的价值。方法选取2020年6月—2022年6月上海市杨浦区控江医院收治的老年突发性耳聋患者130例,作为观察组。选取同期检查的健康体检者120例,作为对照组。采用酶联免疫法(ELISA)测量2组患者血浆ET-1、D-D、sVCAM-1、ICAM-1水平。采用受试者工作特征(ROC)曲线评估血浆ET-1、D-D、sVCAM-1、ICAM-1水平预测突发性耳聋患者预后的价值。结果观察组血浆ET-1、D-D、sVCAM-1、ICAM-1水平显著高于对照组,差异有统计学意义(P<0.05)。与高频突发性耳聋相比,低频突发性耳聋患者血浆ET-1、D-D、sVCAM-1、ICAM-1水平更高,差异有统计学意义(P<0.05)。随着突发性耳聋患者听力损失的加重,血浆ET-1、D-D、sVCAM-1、ICAM-1水平显著升高,差异有统计学意义(P<0.05)。与治疗有效组相比,治疗无效组血浆ET-1、D-D、sVCAM-1、ICAM-1水平显著提升,差异有统计学意义(P<0.05)。血浆ET-1、D-D、sVCAM-1和ICAM-1联合应用时预测治疗有效的灵敏度、特异度高于单一指标预测(P<0.05)。结论血浆ET-1、D-D、sVCAM-1、ICAM-1水平升高与突发性耳聋的发生及预后有一定的关系。上述治疗联合检测将有助于临床更好地评价突发性耳聋患者的预后。