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Journal of Chinese Integrative Medicine ›› 2005, Vol. 3 ›› Issue (5): 378-381.doi: 10.3736/jcim20050512

• Original Experimental Research • Previous Articles     Next Articles

Growth-inhibiting and anti-metastasis effects of Weichang'an Decoction on orthotopic transplant nude mouse model of human gastric cancer

Hai-lei Zhao1,Ai-guang Zhao1,Sheng-fu You2,Ying Gu1,Lai-di Tang2,Jin-kun Yang1   

  1. 1. Department of Oncology, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
    2. Science and Research Laboratory, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
  • Received:2005-04-25 Online:2005-09-20 Published:2005-09-20
  • Contact: Ai-guang Zhao


To evaluate the growth-inhibiting and anti-metastasis effects of Weichang'an Decoction (WCAD) on orthotopic transplant nude mouse model of human gastric cancer.


Forty-one nude mice were implanted with SGC-7901 cells at orthotopic site, whereas 25 were implanted with SGC-7901 cells subcutaneously. Then the nude mice in each transplantation model were divided into the same three groups which were WCAD-treated group with WCAD 0.5 ml/d taken orally, 5-FU-treated group with 5-FU 50 mg/kg intraperitoneally injected weekly and untreated control group with physiological saline 0.5 ml/d taken orally. The growth-inhibiting rates of transplant tumors were detected and the metastatic lesions were examined in the orthotopic transplant mouse model while PCNA-positive rate and apoptotic index (AI) were observed in the subcutaneous transplant mouse model.


The growth-inhibiting rates in the WCAD-treated and 5-FU-treated groups of orthotopic transplant mouse model were 40.82% and 37.92% respectively whereas those of subcutaneous transplant mouse model were 48.70% and 60.10%. The incidence rates of metastasis in perigastric lymph notes, lymph nodes in the porta hepatis, liver, diaphragm and peritoneum in the WCAD-treated and 5-FU-treated groups were lower than those in the untreated control group, and the total metastasis rates in the WCAD-treated, 5-FU-treated and the untreated control groups were 30.77%, 28.57% and 71.43% respectively with significant differences (P<0.05). The total PCNA-positive rates in the WCAD-treated and 5-FU-treated groups were obviously lower than that in the untreated control group (P<0.05 or P<0.01) while the AI was higher than that in the untreated control group (P<0.01). The growth-inhibiting rate, total PCNA-positive rate and total metastasis rate in the WCAD-treated group had no significant differences as compared with those in the 5-FU-treated group, but the AI in the WCAD-treated group was significantly higher than that in the 5-FU-treated group (P<0.05).


WCAD has the inhibiting effects on tumor growth and metastasis of gastric cancer which is orthotopic implanted onto nude mice. This effect may be obtained by proliferation suppression and apoptosis induction in cancer.

Key words: Stomach neoplasms, Compounds (TCD), Neoplasm transplantation, Apoptosis

CLC Number: 

  • R286.91

Tab 1

Tumor metastasis of orthotopic transplant nude mouse model of human gastric cancer in 3 groups (%)"

Group n Perigastric
lymph nodes
Liver Lymph nodes in the
porta hepatis
Diaphragm Peritoneum Total metastasis
WCAD-treated 13 0 7.69 (1/13) 0 7.69(1/13) 15.38 (2/13) 30.77(4/13)*
5-FU-treated 14 0 21.43 (3/14) 0 0 14.29 (2/14) 28.57(4/14)*
Untreated control 14 7.14(1/14) 50 (7/14) 28.57 (4/14) 28.57 (4/14) 42.86 (6/14) 71.43 (10/14)

Tab 2

Expression of PCNA and apoptotic index in subcutaneous transplant nude mouse model of human gastric cancer in 3 groups ($\bar{x}$±s, %)"

Group n Total PCNA-
positive rate
Apoptotic index
WCAD-treated 8 39.03±7.37** 9.72±4.51**
5-FU-treated 9 43.48±19.77* 5.74±1.75**
Untreated control 8 62.26±13.80 2.45±1.37
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