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Objective:To explore the Papillary thyroid carcinoma(PTC) in patients with the expression of BRAF protein and correlation with clinical indicators.Methods:During the selection from June 2015 to June 2016 in our hospital diagnosis and treatment of 120 patients with PTC as the observation group,the other choice during the same period in our hospital make a diagnosis and give treatment of PCT 57 cases as control group,patients with thyroid cancer by immunohistochemical method to detect mutated BRAF protein expression in two groups of patients,and analyze the BRAF protein positive expression and the correlation of PTC clinical indicators.Results:Observation group of patients BRAF protein positive rate was 74.17％,the negative rate was 25.83％,control group patients BRAF protein positive rate was 7.02％,the negative rate was 92.98％,the comparison between groups have significant statistical difference(P＜0.01);Age≤45 years,diameter of tumor＞1 cm,TNM staging for Ⅲ ～Ⅳ stage of PTC patients of BRAF protein positive rate were 96.43％,82.35％,95.65％,significantly higher than the age＞45 years,tumor diameter＜1cm,TNM staging for Ⅰ ～ Ⅱ stage were 67.39％,63.46％,69.07％,and the corresponding comparison have significant statistical difference(P＜0.05).Conclusion:PTC mutated BRAF protein positive rate was significantly higher in patients with non PTC thyroid cancer patients,patients with PTC BRAF protein positive expression related to age,tumor diameter and tumor stage.
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Objective To investigate the expressions of Apaf-1 and Caspase-9 protein in ovarian serous carcinoma(OSC) and their clinicopathological significance.Methods The expressions of Apaf-1 and Caspase-9 protein in 45 cases of OSC,60 cases of ovarian serous cystadenomas and 32 cases of ovarian borderline serous cystadenomas were detected by immunohistochemical SP method.The relationship between the expressions of these two proteins and the clinicopathological features of OSC and the correlation between Apaf-1 and Caspase-9 expressions in OSC were analyzed.Results The positive rates of Apaf-1 in OSC,ovarian serous cystadenoma and ovarian borderline serous cystadenoma were 24.4%(11/45),75.0%(45/60) and 46.9%(15/32),the difference was statistically significant (χ2=26.734,P<0.01).Apaf-1 expression was correlated with pathological grade,clinical stage and lymph nodes metastasis (χ2=6.318,7.565,5.554,P<0.05).The expression rates of Caspase-9 in OSC,ovarian serous cystadenoma and ovarian borderline serous cystadenoma were 28.9%(13/45),83.3%(50/60) and 56.3%(18/32),the difference was statistically significant (χ2=31.682,P<0.01).The expression of Caspase-9 was correlated with pathological grade,clinical stage and lymph nodes metastasis (χ2=5.750,4.391,5.466,P<0.05).In OSC,the expressions of Apaf-1 and Capase-9 were positively correlated (k=0.433,P=0.003).Conclusion The low expressions of Apaf-1 and Caspase-9 in OSC may be related to the occurrence and development of OSC.
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Objective To develop an immunohistochemical assay for the diagnosis of cutaneous malignant melanoma (CMM) micrometastasis via blood and lymphatic vessels,and to evaluate its clinical significance.Methods Fifty-three patients (32 males and 21 females) histopathologically diagnosed as CMM were enrolled in this study.The patients were aged (61.2 ± 8.4) years (range,52-72 years).Tissue specimens were obtained from the central area of tumor in each case,and also from removed lymph nodes in some cases.The average duration of follow-up was (65.00 ± 5.68) months.During the follow-up,17 patients died of the recurrence or metastasis of CMM,and 6 patients were lost to follow-up.The expressions of D2-40,S100 and CD34 antigens in 53 tissue specimens were examined by immunohistochemical staining with three individual monoclonal antibodies,or by an immunohistochemical method using 2 two-antibody cocktails (D2-40/S 100 and CD34/S100) and double-color chromogens in single tissue sections.Results Of the 53 patients,30.19％ (16/53) were positive for hematoxylin-eosin (HE) staining combined with immunohistochemical staining with individual monoclonal antibodies,and 49.06％ (26/53) for the immunohistochemical method using two-antibody cocktails and double-color chromogens.Statistical differences were found in the positive rate between the two methods (x2 =3.94,P＜ 0.05).Compared with patients without blood/lymph vessel tumor emboli,those with blood/lymph vessel tumor emboli showed higher lymph node metastasis rate (80.77％ (21/26) vs.37.04％ (10/27),x2 =10.43,P ＜ 0.001),but lower five-year survival rate (42.31％ (11/26) vs.70.37％ (19/27),x2 =4.25,P ＜ 0.05).Conclusions The immunohistochemical method with two-antibody cocktails is superior to HE staining combined with immunohistochemical staining with individual monoclonal antibodies in the detection of blood/lymph vessel tumor emboli.And blood/lymph vessel tumor emboli may be an important prognostic factor in patients with CMM.
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Background and purpose:The incidence of esophageal cancer of Kazakh race is higher than that of Han people. EphA2, as a member of Eph protein family, is related to a variety of malignant tumors. This study used immunohistochemical method and enzyme-linked immunoassay to detect EphA2 in tissues and serums of Kazakh and Han patients. Therefore to analyze the expression differences of EphA2 in esophageal squamous cell carcinoma (ESCC) tissues and serum of Kazakh and Han patients in Xinjiang, and the relationship with pathological features. Methods:The expression of EphA2 protein was detected by immunohistochemistry method in 100 cases of ESCC tissues and adjacent normal esophageal tissues;Then was tested by ELISA in those cases’ serum and 60 healthy persons. Results:The positive expression rate of EphA2 protein in ESCC and corresponding adjacent tissues were 72.0%, 28.0% in Kazakh, and 62.0%, 26.0% in Han people, respectively, and the differences were statistically significant (P=0.000) in the 2 nations. EphA2 protein levels in serum of ESCC and healthy persons, and Kazakh were (58.36±12.60) and (29.39±7.34) pg/mL, Han Chinese were (58.79±13.29) and (29.39±7.34) pg/mL respectively, there were statistical signiifcance (P=0.000). In ESCC of Kazakh and Han people, EphA2 protein expression had relationship with lymph node metastasis, TNM stage and tumor depth of invasion (P0.05). Conclusion:The high expression of EphA2 protein may contribute to the occurrence, invasion and metastasis of Kazakh and Han ESCC patients. EphA2 protein expression in tissues and serum of patients with ESCC may be related to the primary tumor invasion, lymph node metastasis and TNM stage. The expression of EphA2 protein in peripheral blood of patients with esophageal cancer in Kazakh may be related to depth the of invasion.
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ObjectiveTo investigate the effect of heart-regulating and mind-calming acupuncture on the expression of gap junction protein connexin43 (Cx43) in myocardial cells in a rabbit model of ventricular arrhythmia.MethodA rabbit model of ventricular arrhythmia was made by injecting barium chloride into the marginal ear vein. Forty New Zealand rabbits were randomized into control, model, acupuncture and medication groups. The acupuncture group received heart-regulating and mind-calming acupuncture[at Lingtai(GV10), Shendao(GV11), bilateral Neiguan(PC6)and Baihui(GV20)]and the medication group, oral gavage of propafenone. Rabbit left ventricle was taken after the completion of the experiment. Cx43 expressions were compared and analyzed usingan immunohistochemical staining technique and a computer image processing system.ResultCx43 expression decreased significantly in the model group compared with the control group (P0.05).Conclusion Adjusting Cx43 expression in myocardial cells may be one of the target points for this acupuncture treatment of arrhythmia.
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Objective:To analyse the role of Bcl-6/Blimp-1/IL-21 in pathogenesis of primary Sj?gren′s syndrome(PSS),the relationship between Bcl-6/Blimp-1/IL-21 expression and labial gland biopsy grading.Methods:Immunohistochemical(IHC) method was used to detect the expression of Bcl-6/Blimp-1 in salivary gland between 30 cases pations with PSS in disease group and 11 cases patients with mucous cyst,lower lip trauma in control group,and the serum IL-21 levels between disease group of 40 cases patients with PSS and 30 cases healthy volunteers were measured by enzyme-linked immunosorbent assay( ELISA) ,relations among 15 patients with IL-21 expression levels with labial gland biopsy grading.Results:The expression levels of Bcl-6/Blimp-1/IL-21 in disease group were higher than control group;in disease group,with pathological grades increased,the expression levels of Bcl-6/Blimp-1/IL-21 were also raised.Conclusion:①Bcl-6/Blimp-1/IL-21 may participate in the pathogenesis of PSS;Bcl-6/Blimp-1/IL-21 is associated with infiltration lymphocytes of salivary gland.
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Objective There is close relationship between ubiquitin-specific protease 9X(USP9X) and the biological behav-ior of some tumor.The aim of this study is to investigate the expression and clinical significance of USP 9X in pancreatic carcinoma of elderly patients. Methods The expression of USP9X was detected in 30 pieces of surgically resected primary pancreatic carcinoma tissue and adjacent nontumorous pancreatic tissue of elderly patients by streptavidin -perosidase immunohistochemical method . Results The rate of USP9X positive expression was 56.7%, there was not positive expression in adjacent nontumorous pancreatic tissue .There was no relation between the expression of USP 9X with gender, age, the tumor positin, the tumor size and degree of differentiation (P>0.05), while it was significantly correlated with lymph node metastasis and TNM stages (P<0.05).By using Cox proportional haz-ards analysis, multivariable analysis revealed that TNM stages , lymph node metastasis and USP9X expression were independent risk factor(P<0.05). Conclusion The results indicated that USP9X may play a role in the pathogenesis and prognosis of pancreatic cancer of elderly patients .
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Objective By investigating the effects of AT1 and ERK2 signaling pathway in CHF,to study the effect of Guanxin-Shutong capsule on AT1,ERK2 expression in rats with chronic heart failure (CHF).Methods The CHF rat models were setup by coronary artery ligation,exhausting swimming and reducing feeding.Divided CHF rat methods into a model group,a lisinopril group,Qi-benefiting with Chinese medicine group,blood activating with Chinese medicine group,Qi benefiting and blood activating with Chinese medicine group(QBBA group) and Guanxin-Shutong capsule group.Rats without left coronary artery ligation were set for sham operated group.Real-time quantitative PCR technique and immunohistochemical method were adopted to detect AT1,ERK2 changes of CHF rats.Results AT1,ERK2 expression increased obviously in the model group compared with the sham operated group,and differences were statistically significant (P＜0.01).After treatment,AT1,ERK2 expression reduced significantly in QBBA group and Guanxin-Shutong capsule group than the lisinopril group.(P＞0.05).And therapeutic effect of Guanxin-Shutong capsule group was much better than other Chinese medicine treated group (P＜0.01).Conclusion Guanxin-Shutong capsule would achieve the goal of treating chronic heart failure By inhibiting the expression of AT1 and ERK2 in organizations,and inhibiting or reversing ventricular remodeling process.
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Objective To investigate the expression of Survivin gene and the relationship between Survivin and genesis and development of cervical cancer. Methods The expression of Survivin gene in tissues of 40 patients with cervical cancer, 38 patients with cervical hyperplasia and 10 cases of normal cervical were detected by immunohistochemical SP method, and the relationships between Survivin and the clinical pathological factors were analyzed. Results The expression positive rate of Survivin in cervical cancer tissues (60 %) was significantly higher than that in cervical hyperplasia and normal cervical tissues (42.1 % and 0, respectively), and their differences were statistically significant (P < 0.05). The positive expression rate of Survivin was related with histological grade and the clinical stages of cervical cancer.Conclusion Survivin is related to the genesis and development of cervical cancer.
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Objective To explore the expression of vascular endothelial growth factor(VEGF) and Survivin in nasopharyngeal carcinoma.Methods Immunohistochemical method staining for the paraffin sections(SP method) were used to assess the expression of VECF and Survivin expression in 80 cases of nasopharyngeal carcinoma tissues and 24 cases of nasopharyngeal chronic inflammation tissues.Results The overexpression rate of VEGF protein was 75.76% (61/80) in nasopharyngeal carcinoma tissues,and 25.00% (6/80) in nasopharyngeal chronic inflammation tissues(P<0.01) ;The overexpression rate of Survivin protein was 67.50% (54/80) in nasopharyngeal carcinoma tissues,and 16.67% (4/80) in nasopharyngeal chronic inflammation tissues(P<0.01).The expression of VEGF was related to TNM stage,T stage,lymph node metastasis and distant metastasis (P<0.05) ,and there was a close relation between the expression of Survivin and TNM stage,T stage,lymph node metastasis and distant metastasis (P<0.05).Conclusion Detecting the expression levels of VEGF and Survivin proteins simultaneously in nasopharyngeal carcinoma had certain reference value for judging biological behavior and evaluating prognosis of patients with nasopharyngeal carcinoma.
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Objective To investigate the expression of integrin β1 and VEGF in gastric carcinoma and evaluate its correlation with invasion and metastasis.Methods Immunohistochemistry techniques were used to study the expression of integrin β1 and VEGF in 63 gastric carcinoma specimens.We analyzed the variance with histological grade and stage and classification of clinical date.Results No significant relationship was observed among age,sex and histological classification of the expression of integrin β1 in the gastric cancer group (P>0.05).With the depth of invasion and lymphatic metastasis increasing,integrin β1 expression improved.The positive rate of integrin β1 among tubular adenocarcinoma,papillary carcinoma,mucinous carcinoma and undifferentiated carcinoma was 70.00 %,55.56 %,57.14 % and 64.86 %.No significant relationship was observed in it.Integrin β1 in cases with lymphnode metastasis was significantly higher than those without lymph node metastasis (P<0.05).No significant relationship was observed among VEGF expression and age,sex,histological classification and depth of invasion (P>0.05).Significant relationship was observed among VEGF expression and lymphatic metastasis.VECF in cases with lymph node metastasis was significantly higher than those without lymph node metastasis (P<0.05).Conclusion Immunohistochemistry techniques indicated that integrin β1 participated in the procession of invasion and metastasis.The expression of integrin β1 and VEGF are important factor,forecasting the invasion and metastasis.VEGF is an important factor for lymphnade metastasis of gastric carcinoma.VEGF in cases with lymphnode metastasis was significantly higher than those without lymphnode metastasis(P<0.05).The usage of integrin β1 and VEGF will improve the rightness in forecasting the invasion and lymph node metastasis of gastric carcinoma.
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Objective To investigate the expression and clinical significance of connective tissue growth factor(CTGF) in colorectal cancer.Methods The expressions of CTGF in 62 patients' colorectal cancer tissues and their corresponding adjacent tissues were detected by SP immunohistochemical method.The results were statistically analyzed.Results The positive rates of CTGF in colorectal cancer and adjacent tissues were 61.3% and 19.4% respectively,and the difference between them was significant(P0.05).Conclusion CTGF may play an important role in the occurrence of colorectal cancer,which contributes a lot to guide clinical treatment and prognosis.
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Objective To investigate the expression levels and the roles of induced nitric oxide synthase(iNOS) in rats′ kidney after interruption of blood flow and the following ischemia-reperfusion(IR)injury.Methods Rats were divided into 3 groups:interruptions(5,15,30 min),IR(2,5,8,24,48,72 h),control groups.They were killed at different time points.Kidney tissue samples were studied by immunohistochemical method.Results iNOS increased significantly(P
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Aim To study the effects of Ganoderma polysaccharide peptide (GLPP) on the production of nitric oxide (NO) in mice peritoneal macrophages induced by LPS and its mechanism. Methods The effects of GLPP on the NO releasing from mice peritoneal macrophages induced by LPS were detected by using Griess reagent and the expression of iNOS by GLPP in mice peritoneal macrophages was detected by immunohistochemical method.Result The production of NO was increased by GLPP.(25～200 mg?kg -1) ig for five days or by GLPP(3.125～200 mg?L -1) in vitro but the effects of LPS on the production of NO was not influenced significantly. The expression of iNOS was increased by GLPP(25～200 mg?kg -1) ig for five days or GLPP(3.125～200 mg?L -1) in vitro.Conclusion GPP in vivo or in vitro could increase the production of NO in mice peritoneal macrophages. It might take effects by enhancing the synthesis of iNOS.
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The distribution and number of dendritic cells (DC) were studied by ABC immunohistochemical method in specimens of hepatocellular carcinoma (HCC, n=24), cirrhosis of liver (CL, n=15), chronic active hepatitis B (CAH, n=9), chronic persistent hepatitis (CPH, n=14), acute hepatitis B(AH, n=9) and normal liver (NL, n=11). The results showed that 1) in HCC, DC was mainly distributed in the intercellular space of the tumor cells and the clustered lymphoid cell area, the tumor cells were surrounded by the dendrites of DC; 2) the number of DC cells/mm2 in HCC (12.8) was significantly higher than that in CL (8.4); which was again significantly higher than that in NL (6.1); 3) the number of DC in NL was higher than those in CAH (3.9), CPH (3.3) and AH (2.9); and 4, the number of DC in HBsAgpositive HCC was higher than that in HBsAgnegative HCC. The above results suggested that 1) DC might be involved in the host immune reaction against tumor by means of antigen presentation; 2) DC might play some protective role in the evolution of CAH→CL→HCC.
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Objective To study the effect of Buyang Huanwu Decoction (BHD) on adhesion molecules in vascular endothelial cells (VECs) of blood stasis rats. Methods Expression of ICAM-1, VCAM-1, PECAM-1, iNOS in vascular endothelial cells of blood stasis rats receiving different doses of BHD was observed by immunohistochemical method and RT-PCR.Results The expression of ICAM-1, VCAM-1, PECAM-1, iNOS was increased in model group, while was decreased by BHD. There was an increase tendency on the expression of molecules and significant dose-effect relationship along with the decrease of the BHD doses. Conclusion The increased expression of adhesion molecules in vascular endothelial cells of blood stasis rats could be reduced by BHD in a dose dependent manner.
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0.05).There was a negative correlation between the EGFR expression with the expression of SSTR2A and SSTR5 in NSCLC tissues.The 3-year survival rates were 64.5% and 65.9% in patients positive of SSTR5 and SSTR2A,respectively;and were 45.2% and 22.2% for those negative of SSTR5 and SSTR2A,respectively(P
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We studied ninety cases of thyroid glands both histopathologically and by immunohistochemical methods in patients with Graves' disease using B and T cell markers to evaluate the role of lymphocytic subpopulation. Females were affected more frequently than males with a ratio of 6.5:1, and usually the females were younger than the males at the time of surgery. The heavier the lymphocytic infiltration, the higher was the percentage of germinal center formation or fibrosis. The degree of lymphocytic infiltration was also related to the titers of antithyroglobulin or antimicrosomal antibodies. T cells were mostly scattered individually or in small groups between the follicles; however, in the severely infiltrated group, the major pattern was in clusters. T8 positive cells were more abundant than T4 positive cells, and their distribution pattern was accordant with T11 positive cells. Immunoglobulin synthesizing B cells were positively stained in 47 of 94 cases tested and IgG was the most predominant. In the mild and moderate lymphocytic infiltration groups, IgM was mostly stained at the mantle zone or in the lymphoid cluster of the interfollicular stroma, whereas IgM positive cells were present exclusively in the germinal center of the severely infiltrated group. The results of our study indicate that the major lymphocyte subpopulation in Graves' disease is B lymphocytes, and the degree of T lymphocytic infiltration correlated better with titers of antimicrosomal antibody than antithyroglobulin.
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Adolescente , Adulto , Niño , Femenino , Humanos , Masculino , Enfermedad de Graves/inmunología , Inmunoglobulinas/metabolismo , Linfocitos/inmunología , Persona de Mediana Edad , Glándula Tiroides/inmunologíaRESUMEN
Objectives:To study the expression of PTEN in endometrial carcinoma under different pathological factors and to discuss its relationshipwith the occurrence of endometrial carcinoma and the clinical significance.Methods:The expressions of PTEN in 40 cases of endometrial carcinoma,10 cases of atypical hyperplasia and 10 cases of normal endometria were examined by immunohistochemical method.Result:The positive staining rate of PTEN in endometrial carcinoma was 55.00%,and that in normal endometria was 100.00%.There was no obvious correlation between the expression of PTEN in endometrial carcinoma and different pathological factors such as clinical staging,depth of myometrial invasion and lymph node metastasis.Conclusion:The expression lack of PTEN exists in endometrial carcinoma,and PTEN has an important role in the occurrence of endometrial carcinoma.
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Objective:To detect TNF-? in the tissue of myocardium injury during stress and discuss its significance.Methods:To establish a model of myocardium lesion by injecting ISO to mice abdominal cavity,then TNF-? in the tissue of heart was assessed by immunohistochemical method of SP and HE staining in paraffin sections.Results:There were little positive substance of TNF-? expressed in heart in normal control.The positive substance of TNF-? increased significantly after stress.Conclusion:Increase in the expression of TNF-? in stress indicate its participation in the process of myocardium injury,and it may be an objective marker for evaluation of myocardium injury.