ABSTRACT
When the body is attacked by trauma and infection,the serum C-reactive protein( CRP) con-centration which is produced by the liver will increase.CRP participates in the body′s humoral immunity through regulating the phagocytic cells to clear the pathogenic bacteria and necrotic tissue.The occurrence and develop-ment of malignant tumor is associated with complex inflammatory response pathway.Serum CRP concentration will change with the progress and remission of tumor.CRP is associated with differentiation of benign and malignant, the early diagnosis,the pathological stage,the lymph node metastasis,the organizational characteristics,the prog-nosis,and the treatment of malignant tumor.It is expected to be a clinical screening indicator of malignant tumor.
ABSTRACT
Objective To investigate the expression of tight junction protein 1(Claudin‐1) and vascular endothelial growth factor C(VEGF‐C) in colorectal carcinoma tissues and the relationship between them .Methods Totally 50 cases of colorectal carci‐noma ,paracancerous tissues and 50 cases of normal colorectal tissues from Department of Pathology were detected by immunohisto‐chemistry SP method ,according to the patient′s age ,gender ,lymph node metastasis ,depth of invasion ,clinical stage for comprehen‐sive comparison ,and analyze the Claudin 1 and VEGF‐C protein expression in colorectal cancer tissues .Results The positive rates of Claudin‐1 ,VEGF‐C in colorectal cancer tissues was significantly higher than that in paracancerous tissue and normal colorectal tissues (χ2 =32 .270 ,P=0 .000;χ2 =41 .209 ,P=0 .000) ,the positive rate of Claudin‐1 ,VEGF‐C in paracancerous cancer tissues was significantly higher than that in normal colorectal tissues (χ2 =7 .294 ,P=0 .007 ;χ2 = 5 .741 ,P=0 .017) .The expression of colorectal carcinoma Claudin‐1 had close relationship with differentiation ,invasion degree ,TNM stage ,lymph node metastasis(P<0 .05) ,the expression of VEGF‐C had colse relatons with infiltration degress ,TNM stage ,lymph node metastasis ,tumor size(P<0 .05) .The expression of colorectal cancer Claudin‐1 ,VEGF‐C had significantly positive correlation (χ2 =10 .953 ,P= 0 .001 ,r=0 .468) .Conclusion The expression of colorectal cancer Claudin‐1 ,VEGF‐C was significantly higher than that in paracancerous tis‐sue and normal colorectal tissue ,the expression of Claudin‐1 ,VEGF‐C had a certain relationship with clinical staging .
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Objective: To determine the predictive value of excision repair cross complement 1 (ERCC1) expression in non-small cell lung cancer (NSCLC) and the sensitivity of NSCLC to non-cisplatin based chemo-therapy and cisplatin based chemotherapy. Methods: The expression of ERCC1 was examined by immunohis-tochemical technique in 130 patients with advanced NSCLC seen in our hospital between February 1st 2006 and October 30th 2007. These 130 patients were divied into three groups. Patients in group A (n=68) had neg-ative ERCC1 expression and received cisplatin based chemotherapy. Patients in group B (n=31) had positive expression of ERCC1 and received non-cisplatin based chemotherapy. Patients in group C (n=31) had posi-tive expression of ERCC1 and received cisplatin based chemotherapy. Results: The expression rate of ER-CC1 was 62 of 130 (47.8%). The rate of ERCC1 in pulmonary adenocarcinoma was higher than that in squa-mous carcinoma. The response rates of chemotherapy in group A, B, and C group were 58.8 %, 51.6%, and 41.5%, respecitvely. There was no significant difference in the response rate between group A and group B (X~2=0.451, P=0.502). There was a significant difference in the response rate between group A and group C (X~2= 6.011, P=0.014). The response rate in group B was higher than that in group C (X~2=2.384, P=1.123). The average survival time in group A, group B, and group C were 12.0 months, 11.0 months, and 7.8 months, respecit-vely. There was no significant difference in patient survival between group A and group B (X~2=3.809, P=0.051). There was significant difference in patient survival between group A and group C (X~2=46.368, P=0.000). Con-clusion: ERCC1 may be an important indicator of the sensitivity of advanced NSCLC to cisplatin or non-cisplat-in based chemotherapy.
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To improve spinosyn-producing strain and enhance spinosyns yield, we studied the effects of glycin concentration and the operational time, temperature and lysozyme concentration on protoplast preparation of Saccharopolyspora spinosa SP06081. We also studied different regeneration media and osmotic stabilizing agents. In addition, we compared the change of morphology and spinosyns yield of the regenerated strains. The results showed that the Saccharopolyspora spinosa SP06081 protoplast yield was the highest under these conditions: the collected mycelium from SP06081 grown in Tryptic Soy Broth (TSB) medium with 0.2% glycin for 48 h was treated by 0.1 mg/mL lysozyme at 28 degrees C for 20 min, then plated on the R2YE medium with sucrose as osmotic stabilizer, the number of regeneration protoplast was up to 10(8)/mL. The protoplast-regenerated strains exhibited changes in morphology and antibiotic production, 29.3% protoplast-regenerated strains was characterized by loose mycelium and abundant broken branches as did their parent. Among them, 58.2% strains presented the trend to positive variation in spinosad yield, with the highest spinosad yield of up to 582.0 mg/L, 85.6% higher than that of their parent. There is significant correlation between the morphological differentiation and antibiotic yield of the protoplast-regenerated strains from spinosyn-producing strain.