• 생명과학회지
• /
• 제24권3호
• /
• pp.234-241
• /
• 2014

용규(Solanum nigrum)에 함유된 여러 성분 중 항암 활성이 있는 물질을 분리 및 규명하고자 용규를 MeOH로 추출하고 이 추출물을 $CH_2Cl_2$, EtOAc, n-BuOH, $H_2O$로 유기용매 계통분획 하였다. 이 분획물 중 $H_2O$ 획분이 가장 뛰어난 세포 독성 효과를 보였으며 이를 다시 용매별($H_2O$, 40% MeOH, 60% MeOH, MeOH)로 Diaion HP-20 column chromatography하여 4개의 fraction으로 나누었다. 이 fraction 중 $H_2O$ fraction에서 가장 뛰어난 세포 독성효과를 보였으며 몇 차례의 column chromatography를 행하여 얻어진 활성 획분을 GC-MS 및 FAB-MS 분석하였다. 분자량이 416이었으며 GC-Mass를 통하여 library search를 행한 결과 분자식 $C_{28}H_{48}O_2$인 Des-N-26-methylenedihydrotomatidine으로 확인되었다. Des-N-26-methylene-dihydrotomatidine과 비슷한 구조를 가지고 있는 tomatine과 tomatidine의 HT29 세포에 대한 세포독성효과를 확인한 결과, tomatine보다는 활성이 낮았으나 tomatidine 보다는 40 ${\mu}g/ml$ 이상의 농도에서 높은 세포독성 효과를 나타내었다. Des-N-26-methylene-dihydrotomatidine은 지금까지 학계에 보고되어 있지 않은 물질로, 본 연구에서 최초로 용규에서 Des-N-26-methylene-dihydrotomatidine을 분리하였고, 암세포에 대한 세포 독성 효과를 보고하였다. Des-N-26-methylene-dihydrotomatidine의 정상세포에서의 세포 독성 및 작용 기전 등의 추가 연구를 통해 천연 생리 활성 물질 소재로 활용 가능할 것으로 사료된다.

• 한국식품영양과학회지
• /
• 제36권1호
• /
• pp.1-7
• /
• 2007

된장제조 중 녹차추출물 첨가 및 죽염을 사용할 경우 돌연변이 억제작용 및 in vitro 항암 기능이 증진되는 것으로 나타났다. 돌연변이원 $AFB_1$에 대해 시료처리 농도 1.25 mg/plate에서는 녹차추출물을 첨가하지 않은 된장, 1% 및 2% 첨가 된장은 각각 63%, 85%, 87%의 항돌연변이 효과를 보여서 녹차 첨가에 의해 활성이 현저히 높아졌으나 녹차 1% 와 2%첨가에서 큰 차이는 보이지 않았다. MNNG에 대해서도 이러한 경향은 마찬가지였고, 녹차추출물 1% 첨가된장에 죽염을 사용했을 때는 더욱 높은 항돌연변이 효과를 나타냈다. 녹차추출물을 첨가한 된장의 in vitro 항암효과를 살펴 본 결과, PC-3인체 전립선암세포에서 0.5 mg/mL로 시료를 처리했을 때 대조군인 일반된장이 46%의 항암활성을 나타낸 데 비하여 녹차추출물을 1% 첨가한 시료는 70%, 2% 첨가한 시료는 77%의 암세포 생존저해효과를 나타내어 첨가 농도가 증가할수록 인체 전립선암세포의 생존을 더 크게 억제함을 알 수 있었다. 또한 죽염을 사용했을 때(녹차 1% 첨가군) 항암활성이 더욱 높아졌으며, 녹차 2% 첨가와 비슷하거나 더 높은 항암효과를 보였다. 다른 인체 전립선암세포인 DU145를 이용한 항암효과 실험에서도 같은 경향을 보여서 녹차추출물을 첨가하거나 죽염을 사용함으로써 된장의 항돌연변이 및 항암활성을 증진시킴을 알 수 있었다.

• 생명과학회지
• /
• 제32권5호
• /
• pp.391-410
• /
• 2022

인간 미생물 균총은 장, 구강, 피부와 같이 체내외 다양한 부위에 존재하는 박테리아, 균류, 바이러스 등을 포함하는 미생물 집단이다. 16s ribosomal RNA에 대한 대사체 분석 및 차세대 염기서열 분석기술의 개발과 함께, 살아있는 유기체 내에 존재하는 미생물 균총에 대한 많은 연구가 진행되었다. 이에 따라, 미생물 균총이 숙주의 대사 및 면역과정과 복잡하게 연관되어 있음이 확인되었다. 공생균(commensal microbiota)이라 불리는 미생물 균총의 특정 박테리아가 필수 영양소를 생성하거나 다른 병원성 미생물로부터 숙주를 보호하여 긍정적으로 영향을 미치고 있는 반면, 비정상적인 미생물 균총의 조성을 의미하는 미생물 균총의 불균형(dysbiosis)에 의해 체내 항상성 유지를 방해하여 다양한 종류의 질병을 발생시키기도 한다. 최근, 미생물 균총 중에서도 구강과 장내 존재하는 박테리아가 위장관암의 발암과정과 항암제의 치료효과에 상당한 영향을 미치고 있음이 여러 논문을 통해 보고되고 있다. 미생물 균총-암-면역계 사이의 복잡한 연관성과 미생물 균총 기반 발암 메커니즘에 대한 규명은 암에 대한 이해와 새로운 항암제 개발에 중요한 단서를 제공할 것으로 기대된다. 본 리뷰는 미생물 균총의 박테리아가 위장관암과 항암제에 어떤 영향을 미치고 있는지에 대해 초점을 맞추고 있는 논문들을 요약하고 있으며, 나아가 기존 항암제의 치료효과를 개선하기 위해 복합제로써 미생물 균총의 잠재력과 도전과제에 대해 논의한다.

• 동의생리병리학회지
• /
• 제19권4호
• /
• pp.945-949
• /
• 2005

The objective of this study is to investigate the inhibitor effects of an traditional oriental herb, Sophora flavescens on the pancreatic & cardiac side effects of chemotherapy were studied by using Bl6-BL6 melanoma-injected C57BL6 mouse tumor model. In this study, the effects of an traditional oriental herb, Sophora flavescens, on the side effects of chemotherapy were studied using B16 melanoma-injected C57BL6 mouse tumor model. Anticancer drugs widely used in clinical situation. Sophora flavescen has significant effect on the reduction of the side effects of chemotherapy. Water extract of Sophora flavescens significantly inhibited cisplatin-induced increase of amylase (AMY) which is a good indicator of pancreatic toxicity. Sophora flavescens extract does not decrease the anti-tumor activity of cisplatin showing that it can selectively inhibit side effects of anticancer drugs preserving beneficial effect. Theses results suggest a possibility that Sophora flavescens extract can be used for cancer patients for the reduction of the side effects and improving the quality of life during chemotherapy of cancer patients.

• Archives of Pharmacal Research
• /
• 제27권4호
• /
• pp.436-441
• /
• 2004

SJ compounds (SJ8002 and related compounds) are a group of novel anticancer agents (Cho, Chung, Lee, Kwon, Kang, Joo, and Oh. PCT/KR02/00392). To explore the anticancer mechanism of these compounds, we examined the effect of SJ8002 on microtubules of six human cell lines. At a high concentration ($2\;{\mu}g/mL$), SJ8002 effectively disrupted microtubules of the six cell lines within 1 h. At lower concentrations ($0.05\~1.0\;{\mu}g/mL$), the antimicrotubule activity of SJ8002 varied defending on cell lines. The inhibition of in vitro polymerization of pure tubulin by SJ8002 suggested that SJ8002 acts on free tubulin, inhibits the polymerization of tubulin dimer into microtubules, and hence induces the depolymerization of microtubules.

• 대한약침학회지
• /
• 제13권1호
• /
• pp.5-14
• /
• 2010

Objectives : This study was performed to examine the anticancer effect of mountain ginseng Pharmacopuncture(MGP) to the nude mouse of lung carcinoma induced by NCI-H460 human nonsmall lung cancer cells. Methods : Human lung cancer (NCI-H460) cells were cultured and applied to evaluate anti-tumor activity in nude mice. After confirmed tumor growth in mice, MGP was treated per 0.1ml/kg dose to intraperitoneal and intravenous injection everyday for four weeks. And checked the changes in body weights, tumor volume, mean survival time and percent, increase in life span, histo-pathological findings, organ weights, and blood chemistry levels. Results : The results of in vivo study showed that MGP may have potential as growth inhibitor of solid tumor induced NCI-H460 without marked side effects. MGP inhibited dosage-dependently the growth of NCI-H460 cell-transplanted solid tumor compared with the control group. And mean survival time of MGP treated group was prolonged comparing with control group. Generally the group of intravenous injection is more effective than intraperitoneal injection. Conclusion : These results were suggested that MGP may be a useful anticancer agent for therapy of human lung cancer. And follow study need for the certain evidence.

• 대한한방내과학회지
• /
• 제32권3호
• /
• pp.451-457
• /
• 2011

Progress : A 33 year old female patient diagnosed with left breast cancer stage II was admitted to EWCC (East-West Cancer Center) in November of 2009. She had planned chemotherapy. She was treated with herbal medicine, acupuncture, moxibustion and physiotherapy for a period of 4 months, from Nov 5th, 2009 to Feb 18th 2010. We evaluated the grade of chief complaints and performed blood tests periodically. Results : TKM alleviates symptoms induced by anticancer chemotherapy. Nausea, headache, dizziness and chemotherapyinduced peripheral neuropathy were reduced. Quality of life was also upward. Conclusions : This case study supports TKM's potential efficacy in treating breast cancer patients suffering from anticancer chemotherapy.

• Nutrition Research and Practice
• /
• 제8권2호
• /
• pp.151-157
• /
• 2014

BACKGROUND/OBJECTIVES: In Asia, various medicinal plants have been used as the primary sources in the health care regimen for thousands of years. In recent decades, various studies have investigated the biological activity and potential medicinal value of the medicinal plants. In this study, 100 methanol extracts from 98 plant species were evaluated for their biological activities. MATERIALS/METHODS: The research properties, including 1,1-diphenyl-2-pic-rylhydrazyl (DPPH) radical scavenging activity, ${\alpha}$-glucosidase and ${\alpha}$-tyrosinase inhibitory effects, anti-inflammatory activity, and anticancer activity were evaluated for the selected extracts. RESULTS: Fifteen of the extracts scavenged more than 90% of the DPPH radical. Among the extracts, approximately 20 extracts showed a strong inhibitory effect on ${\alpha}$-glucosidase, while most had no effect on ${\alpha}$-tyrosinase. In addition, 52% of the extracts showed low toxicity to normal cells, and parts of the extracts exhibited high anti-inflammatory and anticancer activities on the murine macrophage cell (RAW 264.7) and human colon cancer cell (HT-29) lines, respectively. CONCLUSIONS: Our findings may contribute to further nutrition and pharmacological studies. Detailed investigations of the outstanding samples are currently underway.

• Nutrition Research and Practice
• /
• 제12권5호
• /
• pp.365-370
• /
• 2018

BACKGROUND/OBJECTIVES Oxidative stress is a major cause of cancer. This study investigated the effects of the ethanol extracts from germinated and non-germinated Keunnunjami rice, a blackish-purple pigmented cultivar with giant embryo, on selected human cancer cell lines and on the antioxidant defense system of mice fed with a high-fat diet. MATERIALS/METHODS: High fat-fed mice were orally administered with either distilled water (HF) or extracts (0.25%, w/w) from brown (B), germinated brown (GB), Keunnunjami (K), and germinated Keunnunjami (GK) rice. RESULTS: In comparison with the brown rice extract, Keunnunjami extract showed higher anticancer effect against cervical and gastric cell lines but lower anticancer activity on liver and colon cancer cells. Mice from the HF group showed significantly higher lipid peroxidation and lower antioxidant enzyme activities than the control group. However, the oxidative stress induced by high-fat diet markedly decreased in B, GB, K, and GK groups as compared with the HF group. CONCLUSIONS: Germination may be an effective method for improving the anticancer and antioxidative properties of Keunnunjami rice and extracts from germinated Keunnunjami rice may serve as a therapeutic agent against cervical and gastric cancers and oxidative damage.

• BMB Reports
• /
• 제46권1호
• /
• pp.59-64
• /
• 2013

Signal transducer and activator of transcription 3 (STAT3) and telomerase are considered attractive targets for anticancer therapy. The in vitro anticancer activity of the gold(I) compound auranofin was investigated using MDA-MB 231 human breast cancer cells, in which STAT3 is constitutively active. In cell culture, auranofin inhibited growth in a dose-dependent manner, and N-acetyl-L-cysteine (NAC), a scavenger of reactive oxygen species (ROS), markedly blocked the effect of auranofin. Incorporation of 5-bromo-2'-deoxyuridine into DNA and anchorage-independent cell growth on soft agar were decreased by auranofin treatment. STAT3 phosphorylation and telomerase activity were also attenuated in cells exposed to auranofin, but NAC pretreatment restored STAT3 phosphorylation and telomerase activity in these cells. These findings indicate that auranofin exerts in vitro antitumor effects in MDA-MB 231 cells and its activity involves inhibition of STAT3 and telomerase. Thus, auranofin shows potential as a novel anticancer drug that targets STAT3 and telomerase.