1.Research about the indexes to assess the biological behavior of the giant cell tumor of bone
Cancer Research and Clinic 2006;0(07):-
Recent studies about the GCT are focusing on searching for new standards and indexes to prognose the biological behavior of the GCT because of the traditional standards and indexes have been realized often not agree with to the clinic. we review the lately research about the biological behavior of the GCT, then analyse and sum up the correlative indexes that could be significant in studying the prognosis of the GCT.
2.Promoting Effect of Schwann's Cells on the Differentiation of Rat Bone Marrow-derived Mesenchymal Stem Cells into Neuron-like Cells
Journal of China Medical University 2010;(9):737-739,742
Objective To approach a new method induce the differentiation of mesenchymal stems cells(MSC)into neuron-like cells.Methods We co-cultured Schwann cells with MSC to induce the differentiation of rat MSC into neuron-like cells.Immunohistochemistry was employed to observe the expression of NSE and Brdu,and Western blot to examine the expression of NeuN by in transdifferenciated MSC(Neuron-like cells).Additionally,we analyzed the differentiating rate of MSC.Results The co-culture of MSC with Schwann cells could induce the expression of NSE and NeuN.They have been differentiated into neuron-like cells.The differentiating rate of MSC was(80.51±5.65)%.Conclusion The co-culture with Schwann′s cells could differentiate rat bone marrow derived MSC into Neuron-like cells.
4.New perspectives on medical treatment of gastric cancer.
Chinese Journal of Gastrointestinal Surgery 2012;15(2):103-108
Perioperative chemotherapy for gastric cancer has made steady progress with the application of chemotherapeutic agents and conduct of relevant clinical trials. However, palliative chemotherapy has only made marginal progress, and the median survival remains between 8-10 months. An emerging understanding of tumor biology, cellular and molecular mechanisms has revealed novel targets in gastric cancer therapy, such as trastuzumab, bevacizumab, cetuximab, etc. There are still some problems in clinical practice due to the high heterogeneity of gastric cancer including optimization of perioperative chemotherapy regimen, determination of right strategy to personalize chemotherapy or target therapy for advanced gastric cancer. In order to practically achieve individualized therapy, multicenter, prospective, randomized clinical trials according specific matters of gastric cancer should be performed in China. A deeper understanding of the biological characteristics of gastric cancer, and more translational medicine research and multi-disciplinary team collaboration should be carried out to achieve personalized medicine.
Chemotherapy, Adjuvant
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Humans
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Precision Medicine
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Stomach Neoplasms
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drug therapy
7.Comparison of anesthetic effects of ropivacaine and levobupivacaine in cesarean section
Journal of Shanghai Jiaotong University(Medical Science) 2006;0(01):-
0.05).Conclusion Epidural anesthesia with 0.75% ropivacaine and 0.5% levobupivacaine for cesarean section may produce equivalent clinical effects.Pharmacokinetic parameters of them are similar,with a good prospect for clinical application.
8.DMF-induced adult hepatocyte apoptosis and its effects on expression of Bcl-2, Bax and Caspase-3.
Yan-Yan LU ; Zhi-Qiang XUAN ; Xue-Zhi LI
Chinese Journal of Industrial Hygiene and Occupational Diseases 2008;26(5):276-279
OBJECTIVETo investigate the apoptosis-inducing effect of DMF on the human liver cells (HL-7702) in vitro.
METHODSLiver cells were exposed to different concentrations of DMF (0, 50, 100, 150, 200 mmol/L) for 12 hours. Apoptotic rate, the expression of Bax, Bcl-2 and Caspase-3 in liver cells were measured by FCM and western blotting respectively.
RESULTSThe increase in apoptotic rate of hepatocytes in concentration-manner was shown after DMF treatment for 12 h. After treatment the expression of Bcl-2 was decreased steadily and lower than the control group (P < 0.01), the expression of Bax showed no significant difference among the groups of different dosage by one-factor analysis of variance (P > 0.05), as the increase of the dosage of DMF. The ratio of Bcl-2/Bax dropped with the dosage of DMF increasing, and the ratio in 200 mmol/L of DMF was significantly lower than that of the control (P < 0.01). The new lands of procaspase-3 in 150, 200 mmol/L were observed, which demonstrated that there was active caspase-3.
CONCLUSIONDMF can induce apoptosis of cultured adult normal hepatocytes in vitro, and the mechanism might be related to the decrease of Bcl-2/Bax and the cleavage of Caspase-3.
Apoptosis ; drug effects ; Caspase 3 ; metabolism ; Cells, Cultured ; Dimethylformamide ; pharmacology ; Hepatocytes ; drug effects ; metabolism ; pathology ; Humans ; Proto-Oncogene Proteins c-bcl-2 ; metabolism ; bcl-2-Associated X Protein ; metabolism
9.Prostate Cancer Bone Metastasis: Interaction Between Tumor Cells and Bone Microenvironment
Yi LU ; Zhi YAO ; Jian ZHANG
Chinese Journal of Biochemistry and Molecular Biology 2007;23(3):1-171
Cancer metastasis is composed of a complex cascade that involves a variety of critical steps beginning with detachment from the primary tumor and ending with growth of tumor at a distant site, such as bone. The "seed-and-soil hypothesis" predicts that the bone microenvironment expresses factors through which attract a variety of cancer cells and promote the tumor development. The ending point of tumor development in bone is achieved through the bidirectional and dynamic interaction between tumor cells and the cells in their growth microenvironment. A variety of factors produced by the bone microenvironment, contribute to the pathogenesis of cancer skeletal metastasis. In this review, using prostate cancer (CaP) as an example, some of general mechanisms of cancer metastasis will be summarized. In addition, the current understanding of the interaction between tumor cells and the bone microenvironment will be addressed. Finally, the research directions in the near future will be suggested.