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Jin C.,Chinese Institute of Materia Medica | Wu Y.-S.,Second Hospital of Yulin City | Zhang Q.,Hospital of Tibet Armed Police | Li X.-F.,Hunan University | And 3 more authors.
Yaoxue Xuebao | Year: 2011

This paper is to report the investigation on the metabolic behavior of Staphylococcus aureus (S. aureus) after given Qingkailing injection, and with the aim of seeking for a new quality control method based on biological assessment. The growth thermogenic curves of S.aureus were determined by microcalorimetry and analyzed by computer. The results showed that in the concentration range of (0-5.00%), the growth thermogenic curves of S. aureus were declined and removed back with increasing dosage of Qingkailing injection; the main parameters (T 1, T 2, k 1, P 1, P 2 and I) and the dosage of Qingkailing injection have good correlation. The 50% inhibiting dosage is 3.26 %, and the optimal inhibiting dosage is 5.47%. Difference could be detected among the Qingkailing injection samples from different factories and different batches. It is proved that Qingkailing injection could inhibit the metabolic behavior of S.aureus, and microcalorimetry might be applied in the quality assessment of Qingkailing injection.

Zhao X.,Second Hospital of Yulin City | Tuo H.,Xian Jiaotong University | Si M.,Second Hospital of Yulin City | Wang L.,Xian Jiaotong University | Liang P.,City.com
Xi bao yu fen zi mian yi xue za zhi = Chinese journal of cellular and molecular immunology | Year: 2015

OBJECTIVE: To detect the expression of BCL6 corepressor-like 1 (BCORL1) in tumor tissues of human non-small cell lung cancer (NSCLC) and determine the effect of BCORL1 on cell migration and invasion in A549 cells by knockdown of BCORL1.METHODS: Sixty-eight pairs of NSCLC and nontumor tissues were collected and the expressions of BCORL1 and E-cadherin in them were detected using immunohistochemical staining. The expression of BCORL1 was knocked down by siRNA in A549 cells. Transwell(TM) assays were performed to test NSCLC cell migration and invasion in vitro.RESULTS: The expression of BCORL1 in NSCLC was significantly higher than that in paired noncancerous tissues, while E-cadherin was down-regulated in NSCLC as compared with nontumor tissues. Pearson correlation coefficient analysis suggested that BCORL1 was negatively correlated with E-cadherin expression in NSCLC tissues. Clinical association analysis suggested that the elevated expression of BCORL1 was evidently associated with the higher incidence of lymph node metastasis and more advanced TNM stage. When the expression of BCORL1 was down-regulated by a specific siRNA, E-cadherin was up-regulated, and BCORL1 knockdown obviously inhibited cell migration and invasion in A549 cells.CONCLUSION: BCORL1 is overexpressed in NSCLC tissues and it is negatively correlated with E-cadherin expression. Its high expression is correlated with poor prognostic features. BCORL1 knockdown up-regulates E-cadherin expression and subsequently inhibits cell migration and invasion of lung cancer cells.

Hao Q.,Second Hospital of Yulin City | Li T.,Second Hospital of Yulin City | Zhang X.,Second Hospital of Yulin City | Gao P.,Second Hospital of Yulin City | And 3 more authors.
Oncology Reports | Year: 2014

Cell metabolism abnormalities are closely related to tumor occurrence and development. Fatty acid synthase (FASN) is the key molecule for catalyzing fatty acid synthesis. Increasing evidence indicates that FASN is highly expressed in a number of malignant tumors; it can promote the synthesis of endogenous fatty acids in tumor cells and then the synthesized fatty acids provide energy for the proliferation of tumor cells. However, there has been no systematic study focusing on FASN expression and function in hepatocellular carcinoma (HCC). The aim of the present study was to verify the high expression of FASN in HCC cells at the histological and cellular levels, and to construct FASN shRNA eukaryotic expression vector for interfering FASN expression in HCC cell line SK-Hep-1, in an effort to explore the role of FASN in the proliferation, apoptosis, invasion and migration of HCC cells. In the present study, we demonstrated that FASN was highly expressed in HCC tissues compared with tumor-adjacent tissue and normal liver cell line 7702 (P<0.05). FASN expression in the high metastatic MHCC97H and SK-Hep-1 cell lines was increased compared with low metastatic HCC cell lines (P<0.05). Then, we constructed a FASN shRNA eukaryotic expression vector; after HCC SK-Hep-1 cells were transfected, the cell proliferation, migration and invasion were inhibited, but FASN had no impact on the apoptosis of HCC cells. Collectively, these data indicate that FASN is possibly involved in the occurrence and metastasis of HCC. Thus, inhibition of FASN may be a promising approach for the treatment of HCC.

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