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OBJECTIVE：To study the effects a nd mechanism of X iaozheng decoction on the proliferation and migration of uterine leiomyoma cells in rat. METHODS ：Female SD rats were randomly divided into normal control group ，model group ， chemical medicine positive control group （Mifepristone tablets ，2.25 mg/kg），TCM positive control group （Guizhi fuling capsules ， 200 mg/kg），Xiaozheng decoction low-dose ，medium-dose and high-dose groups （1.4，2.8，5.6 g/kg），with 15 rats in each group. Except for normal control group ，other groups were given intramuscular injection of estrogen and progesterone to induce uterine leiomyomas model. On the second day after modeling ，rats in administration groups were given relevant medicine intragastrically ； normal control group and model group were given constant volume of normal saline intragastrically ，once a day ，for consecutive 4 months. After last administration ，the uterus was removed and its morphology was observed ；the uterine coefficient was calculated. Uterine leiomyoma cells or uterine smooth muscle cells were isolated and cultured. The proliferation rate and migration rate of cells were detected by MTT method and cell scratch test ；flow cytometry was used to detect the cell apoptosis rate ；mRNA expression of HMGB 1 were detected by RT-qPCR. The expression of phosphorylated protein kinase B （p-Akt），nuclear factor κB inhibitor α （IκBα）and phosphorylated transforming growth factor β-activated kinase 1（p-TAK1）were detected by ELISA ；the protein expression of HMGB 1，phospholipid 3 kinase（PI3K），p-Akt in cytoplasm and nuclear factor κB p65（NF-κB p65）in nucleus were detected by Western blot assay. RESULTS ：Compared with normal control g roup，the myometrium of the model group was significantly thickened ，the number of uterine smooth muscle cells were significantly increased and the sizes were 83777930。E-mail：jianghua_ouyang@126.com different，the arrangement of muscle fibers in so me areas was disordered，the uterine coefficient ，and the relative expression of HMGB 1 mRNA and protein were increased significantly （P＜ 0.01）. Compared with model group ，the thickening of uterine myometrium and other symptoms were improved to different extents in Xiaozheng decoction groups and positive control groups ；the uterine coefficient ，cell proliferation rate ，migration rate ，mRNA and protein expression of HMGB 1，the expression of p-Akt and IκBα，protein expression of PI 3K and p-Akt （except for Xiaozheng decoction low-dose group ）in cytoplasm were all decreased significantly （P＜0.05 or P＜0.01）；the cell apoptosis rate ，the expression of p-TAK 1，protein expression of NF-κB p65 in nucleus were all increased significantly （P＜0.05 or P＜0.01）. The effects of Xiaozheng decoction showed a dose-dependent trend. CONCLUSIONS ：Xiaozheng decoction can inhibit the proliferation and migration of uterine leiomyoma cells by down-regulating the expression of HMGB 1，PI3K and p-Akt ，up-regulating the expression of NF-κB p65，so as to promote cell apoptosis.
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Objective To explore the expression of Survivin in colorectal cancer tissue and its relationship with clinicopathological features.Methods In situ hybridization was used to examine the expression of Survivin mRNA,and immunohistochemical method was used to detect the expression of Survivin protein in 60 cases of colorectal cancer and 30 cases of colorectal normal mucos tissue.The relationship of the expression of Survivin protein with clinicopathological features of colorectal cancer was analyzed.Results The positive expression rate of Survivin protein in colorectal normal mucos tissue (10.00％,3/30) was lower than that in colorectal cancer tissue (73.33％,44/60),and there was significant difference (P ＜ 0.05).The positive expression rate of Survivin mRNA in colorectal normal mucos tissue (6.67％,2/30) was lower than that in colorectal cancer tissue (63.33％,38/60),and there was significant difference (P ＜ 0.05).The expression of Survivin mRNA was positively correlated with depth of invasion,lymph node metastasis,liver metastasis,peritoneal micrometastasis and TNM stage in patients with colorectal cancer (P ＜ 0.01),but had no correlation with gender,age,tumor size,location,degree of differentiation and histological type (P ＞ 0.05).Conclusions The specific high expression of Survivin protein has a high correlation with the occurrence,development,infiltration of colorectal cancer.Survivin may be used as a marker for prognosis of patients with colorectal cancer.
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Objective:To investigate the clinical significance of epidermal growth factor receptor(EGFR),proliferating cell nuclear antigen(PCNA),laminin(LN)and type IV collagen expression in salivary adenoid cystic carcinoma(SACC).Methods:EGFR gene in 78 cases of SACC with complete clinical data was detected by fluorescence in situ hybridization(FISH)technique,the expression of EGFR,PCNA,LN and type IV collagen protein was detected by immunohistochemistry technique(IHC),their correlation with the clin-icopathological parameters was analysed by SPSS 13.00 software.Results:EGFR gene amplification levels(69.2%)was positively related to the ratio of EGFR protein positive expression(7 1 .8%),the expression of EGFR,PCNA,LN and type IV collagen was posi-tively related to the clinical pathological parameters(P<0.05).There was a positive correlation between EGFR and PCNA expression (P<0.05),a negative correlation between LN protein and type IV collagen protein expression(P<0.05).Conclusion:EGFR gene is amplified in SACC.EGFR,PCNA,LN and type IV collagen take part in the occurrence and development of SACC.
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OBJECTIVE@#To investigate the expression and clinical significance of OPN, CD44v6 and MMP-9 in laryngeal squamous cell carcinomas (LSCC).@*METHOD@#The expression of OPN, CD44v6 and MMP-9 in the 47 cases of LSCC and 10 cases normal mucosa were detected by immunohistochemical method. The correlation between OPN, CD44v6 and MMP-9 proteins expressions and the correlation between them and clinicopathological feature were also studied.@*RESULT@#(1) The positive expression rates of OPN, CD44v6 and MMP-9 were 63.8%, 76.6% and 68.1% in LSCC of 47 cases and, and 10%, 30% and 0 in the tumor adjacent issue. (2) The positive rate of OPN and CD44v6 was significantly correlated with the clinical staging, the pathological grading and the metastasis of cervical lymph node (P 0.05). (3) The expression of OPN was well correlated with the positive rate of CD44v6 and MMP-9 in LSCC (r = 0.421, P < 0.01, r = 0.340, P < 0.05). The expression of positive rate of CD44v6 and MMP-9 was well related in LSCC as well (r = 0.376, P < 0.01).@*CONCLUSION@#There is a high level of expression of OPN, CD44v6 and MMP-9 in LSCC. OPN, CD44v6 and MMP-9 are positively related and involved in the invasion and metastasis of LSCC.