Da-li Chen

Publications (2)0 Total impact

• Article: [Inhibitory effect of Biejiajianwan pills on tumor growth and proliferating cell nuclear antigen expression in mice bearing H22 cell-induced tumor].

  Xu-hui Zhang, Da-li Chen, Rong-cheng Luo
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  ABSTRACT: To study the anti-tumor effect of Biejiajianwan pills and explore its mechanism. Mice bearing neoplasm induced by H22 cell inoculation were randomized into 4 groups, namely the negative control group, positive control group (with cyclophosphamide treatment), and high- and low-dose Biejiajianwan pill group. The tumor-bearing mice received corresponding treatments for 15 consecutive days, after which their thymuses and spleens were isolated and weighed to calculate the thymus and spleen indices. The tumor mass was also weighed and the tumor inhibition rate calculated. Immunohistochemistry was performed to evaluate the expression intensity of proliferating cell nuclear antigen (PCNA) in the tumor tissue. The pills significantly inhibited the growth of the implanted tumor and reduced the expression of PCNA in the tumor. One of the possible mechanisms of the anti-tumor effects of Biejiajian pills might be associated with the inhibition of PCNA expression in the tumor.
  Nan fang yi ke da xue xue bao = Journal of Southern Medical University 01/2007; 26(12):1791-3.
• Article: [In vivo and in vitro anti-tumor effect of Sanjie Kangliu Decoction].

  Da-li Chen, Tao Huang
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  ABSTRACT: To study the anti-tumor effect of Sanjie Kangliu (swelling-dispersing) Decoction in vivo and in vitro. The mice bearing tumors (established by subcutaneous inoculation of SRS-82 cells) were fed with Sanjie Kangliu Decoction. The tumor was isolated and weighed to calculate the tumor inhibition rate, followed by morphological observation of the tumor cells under electron microscope. The DNA of the tumor cells was then extracted for agarose gel electrophoresis. In the in vitro experiment, cultured SRS-82 cells were treated with the serum of rats fed with Sanjie Kangliu Decoction, and the cell viability and apoptosis was examined by MTT assay and flow cytometry, respectively. Immunocytochemistry was employed to test the expression intensity of Bcl-2 protein of the rat serum-treated cells, and in situ hybridization performed to detect matrix metalloproteinase (MMP)-2 mRNA expression. In the tumor-bearing mouse models, Sanjie Kangliu Decoction administration resulted in significant reduction of the tumor mass and apoptosis of the tumor cells as shown by typical apoptotic changes of the cell morphology and presence of DNA ladder in agarose gel electrophoresis. In comparison with the mice without the decoction treatment, the treated mice showed significantly lower tumor cell viability, higher cell apoptosis rate, and weaker Bcl-2 expression. The expression of MMP-2 mRNA showed no distinct difference between the groups. Sanjie Kangliu Decoction has obvious anti-tumor effect both in vivo and in vitro possibly through the mechanism of inducing tumor cell apoptosis by reducing Bcl-2 expression without affecting the expression of MMP-2 mRNA.
  Nan fang yi ke da xue xue bao = Journal of Southern Medical University 05/2006; 26(4):479-82.