The Effects of Duchesnea india(Audra.) Foche. on Human Stomach Cancer Cells

Hong, Sang-Sun; Ryu, Bong-Ha; Kim, Jin-Sung; Yoon, Sang-Hyub; Ryu, Ki-Won

The Journal of Internal Korean Medicine > Volume 24(2); 2003 > Article

Original Article

The Journal of Internal Korean Medicine 2003;24(2): 290-299.

사매가 위암세포에 미치는 영향

The Effects of Duchesnea india(Audra.) Foche. on Human Stomach Cancer Cells

Sang-Sun Hong, Bong-Ha Ryu, Jin-Sung Kim, Sang-Hyub Yoon, Ki-Won Ryu

Department of the 3rd Internal Medicine, College of Oriental Medicine, Kyung Hee University

Correspondence

Sang-Sun Hong ,Tel: 02-958-9140, Email: hss1260@hanmail.net

Received: March 19, 2003, Accepted: April 30, 2003, Published online: June 30, 2003.

ABSTRACT

Background:
Nowadays many researches about it s cure are going on world widely since cancer is one of the most human health threatening diseases. In Chinese and North Korean medicine, Duchesnea india(Audra.) Foche. is practically used to treat many kinds of cancer, but in Korea it is rarely used. So, we need to scientifically identify anti-tumor effects of Duchesnea india(Audra.) Foche.

Objective :
We are aimed to identify anti-tumor effects of Duchesnea india(Audra.) Foche. on the stomach cancer cells through molecular biologic methods. Material &

Methods :
We used AGS as stomach cancer cells from American Type Culture Collection. We added the boiled extract of Duchesnea india(Audra.) Foche. 5㎕(Sample I), 10㎕(Sample II) to cultural media(㎖)for 0, 6, 12, 24, 48 hours. We measured the killing effect on stomach cancer cells through Tryphan blue exclusion test and the suppressive effect on viability of stomach cancer cells via MTT assay. the quantitative RT-PCR was used to examine their effect on the revelation of Bcl-2, Bcl-XL, and Bax, which are genes related to apoptosis. We measured change of mitochondria membrane permeability and membrane potential via flow cytometry.

Result:
1. The killing effect on stomach cancer cells showed that each test groups killed more stomach cancer cells than the control group with a time(6 hours later) and density dependent manner, which was statistical significance. 2. The suppressive effect on viability of stomach cancer cells showed that each test groups had more suppressive effects on viability of stomach cancer cells than the control group with a time(6 hours later), which was statistical significance. 3. In the test about the revelation of genes related to apoptosis, the revelation of Bcl-2 and Bcl-XL decreased with a density manner which was statistical significance. but the revelation of Bax was not changed with statistical significance. 4. As a result of this test, Duchesnea india(Audra.) Foche. caused apoptosis by decreasing the absorbance of mitochondria with statistical significance. and also induced apoptosis by decreasing the membrane potential of mitochondria.

Conclusion:
This experiment showed that Duchesnea india(Audra.) Foche. has anti-tumor effect with statistical significance. This is in vitro experiment and basic experiment on Duchesnea india(Audra.) Foche. We hope more progressive researchs on Duchesnea india(Audra.) Foche. will go on and its anti-tumor effects will be more practically identified.

Key words: anti-tumor effects, Duchesnea india(Audra.) Foche