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1,3,5-Tricaffeoylquinic Acid from Ipomoea batatas Vines Induced Ovarian Cancer Cell Apoptosis and Inhibited
Dahae Lee1, Jaekyoung Kim2, Soyoon Baek3
1College of Korean Medicine, Gachon University, Seongnam 13120, Republic of Korea.
Abstract:
Ovarian cancer usually metastasizes from the ovary to adjacent organs through direct invasion with blood vessels formed by endothelial cells. Targeting apoptosis of ovarian cancer and angiogenesis is promising for anticancer therapy. Leaves of Ipomoea sp. have reportedly shown promise in treating ovarian cancer. Here, we investigated the apoptosis-inducing and anti-angiogenic effects of compounds isolated from Ipomoea batatas vines (IBV). Phytochemical examination of IBV led to the isolation and verification of eight compounds (1-8): chlorogenic acid (1), 3,4-dicaffeoylquinic acid (2), 3,5-dicaffeoylquinic acid (3), 4,5-dicaffeoylquinic acid (4), 1,3,5-tricaffeoylquinic acid (5), N-trans-feruloyltyramine (6), scopoletin (7), and esculetin (8). Of these, 1,3,5-tricaffeoylquinic acid (5) showed the highest cytotoxicity in A2780 human ovarian cancer cells, inducing apoptotic death in more than 37% cells and decreasing viability to less than 25% at 100 μM. Compound 5 increased the levels of cleaved caspase-8, Bax, cleaved PARP, and caspase-3/9, and decreased the levels of cleaved Bcl-2. Further, 5 inhibited tubule formation in HUVECs. VEGFR2, ERK, PI3K, Akt, and mTOR protein expression was also suppressed by 5. Then, a simple, rapid, and reliable LC-MS/ MS method was developed to determine the contents of the isolated compounds from IBV. Overall, 5 has potential for treating ovarian cancer as it induces apoptosis in ovarian cancer cells and inhibits tube formation.
Insights
1,3,5-tricaffeoylquinic acid from Ipomoea batatas vines induces apoptosis in ovarian cancer cells and inhibits angiogenesis, showing potential for ovarian cancer treatment.
Area of Science:
- Phytochemistry
- Molecular Biology
- Cancer Research
Background:
- Ovarian cancer metastasis involves direct invasion and angiogenesis.
- Targeting apoptosis and angiogenesis are key anticancer strategies.
- Ipomoea species show promise in ovarian cancer treatment.
Purpose of the Study:
- To investigate the apoptosis-inducing and anti-angiogenic effects of compounds from Ipomoea batatas vines (IBV).
- To identify potent compounds from IBV for ovarian cancer therapy.
Main Methods:
- Phytochemical isolation and verification of eight compounds from IBV.
- Cytotoxicity assays on A2780 human ovarian cancer cells.
- Western blot analysis for apoptosis and angiogenesis markers.
- Inhibition of tubule formation assays in human umbilical vein endothelial cells (HUVECs).
- LC-MS/MS method development for compound quantification.
Main Results:
- 1,3,5-tricaffeoylquinic acid (compound 5) exhibited the highest cytotoxicity, inducing >37% apoptosis and reducing viability to <25% in A2780 cells at 100 μM.
- Compound 5 modulated apoptosis markers: increased cleaved caspase-8, Bax, cleaved PARP, caspase-3/9, and decreased cleaved Bcl-2.
- Compound 5 inhibited HUVEC tubule formation and suppressed key angiogenesis signaling proteins (VEGFR2, ERK, PI3K, Akt, mTOR).
Conclusions:
- 1,3,5-tricaffeoylquinic acid demonstrates significant potential for ovarian cancer treatment.
- Its efficacy stems from inducing apoptosis in cancer cells and inhibiting angiogenesis.
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