| Description: |
20(R)-Ginsenoside Rh2, a minor stereoisomer of ginsenoside Rh2, possesses matrix metalloproteinase inhibitory. 20(R)-Ginsenoside Rh2 has anticancer, anti- proliferation, anti-inflammatory and antioxidative activities, it also shows selective osteoclastgenesis inhibitory activity. 20(R)-Ginsenoside Rh2 reduce apoptotic rate significantly, enhance the activity of caspase-3 and induces apoptosis in human lung adenocarcinoma A549 cells. |
| Targets: |
NO | PGE | MMP(e.g.TIMP) | ROS | TNF-α | Caspase |
| In vitro: |
| Zhongguo Zhong Yao Za Zhi. 2011 Jun;36(12):1670-4. | | Effects of 20 (S) -ginsenoside Rh2 and 20 (R) -ginsenoside Rh2 on proliferation and apoptosis of human lung adenocarcinoma A549 cells.[Pubmed: 22007558] | To evaluate and explore the effects of 20(S)-ginsenoside Rh2 and 20(R)-Ginsenoside Rh2 on the cytotoxicity, proliferation and the apoptosis of human lung adenocarcinoma A549 cells, and to illustrate the structure-activity relationship and possible mechanisms of anti-tumor active ingredients of ginseng.
METHODS AND RESULTS:
A549 cells were treated with different concentration gradient of 20(R)-Ginsenoside Rh2 (S and R structure) and incubated for different time.MTT test indicated that 20(R)-Ginsenoside Rh2 had a strong cytotoxicity activity to A549 cells. Ginsenoside Rh2 could obviously inhibit the cell proliferation in human lung adenocarcinoma cell line A549 at the effective doses of 25 mg x L(-1) treated with 48 h.
CONCLUSIONS:
20(R)-Ginsenoside Rh2 and 20(S)-ginsenoside Rh2 had a significant inhibitory effect on the proliferation. Compared with 20(S)-ginsenoside Rh2, 20 (S)-ginsenoside Rh2 has been shown to have significant anticancer effects and to be capable of blocking cell proliferation and causing G1 phase arrest in human lung adenocarcinoma A549 cells. 20(R)-Ginsenoside Rh2 and 20(S)-ginsenoside Rh2 have been shown to have anticancer effects and to be capable of increasing inchoate apoptotic rate, reducing apoptotic rate significantly, enhancing the activity of Caspase-3 and inducing apoptosis in human lung adenocarcinoma A549 cells. | | Bioorg Med Chem Lett. 2009 Jun 15;19(12):3320-3. | | 20(R)-ginsenoside Rh2, not 20(S), is a selective osteoclastgenesis inhibitor without any cytotoxicity.[Pubmed: 19428246] | Increased osteoclastic bone resorption plays a central role in the pathogenesis of many bone diseases, and osteoclast inhibitors are the most widely used treatments for these diseases. Ginsenosides, the main component of ginseng, have been known for their medicinal effects such as anti-inflammatory and anti-proliferative activities.
METHODS AND RESULTS:
In this study, we investigated the inhibitory effects of ginsenosides (20(R)-Ginsenoside Rh2 and ginsenoside 20(S)-Rh2) on osteoclastgenesis using RAW264 cells in vitro. Only 20(R)-Ginsenoside Rh2 showed selective osteoclastgenesis inhibitory activity without any cytotoxicity up to 100 microM.
CONCLUSIONS:
These results implied that the stereochemistry of the hydroxyl group at C-20 may play an important role in selective osteoclastgenesis inhibitory activity. |
|
| In vivo: |
| J Ginseng Res . 2017 Oct;41(4):496-502. | | Antiviral activity of 20( R)-ginsenoside Rh2 against murine gammaherpesvirus[Pubmed: 29021696] | | Abstract
Background: Ginsenosides are the major components of Panax ginseng Meyer, an herbal medicine used for the treatment of various diseases. Different ginsenosides contribute to the biological properties of ginseng, such as antimicrobial, anticancer, and immunomodulatory properties. In this study, we investigated the antiviral effects of 15 ginsenosides and compound K on gammaherpesvirus.
Methods: The antiviral activity of ginsenosides was examined using the plaque-forming assay and by analyzing the expression of the lytic gene.
Results: 20(R)-Ginsenoside Rh2 inhibited the replication and proliferation of murine gammaherpesvirus 68 (MHV-68), and its half-maximal inhibitory concentration (IC50) against MHV-68 was estimated to be 2.77 μM. In addition, 20(R)-ginsenoside Rh2 inhibited 12-O-tetradecanoylphorbol-13-acetate (TPA)-induced lytic replication of human gammaherpesvirus in the Kaposi's sarcoma-associated herpesvirus (KSHV)-positive cell line BC3.
Conclusion: Our results indicate that 20(R)-ginsenoside Rh2 can inhibit the replication of mouse and human gammaherpesviruses, and thus, has the potential to treat gammaherpesvirus infection.
Keywords: 20(R)-ginsenoside Rh2; Kaposi's sarcoma-associated herpesvirus; antiviral activity; murine gammaherpesvirus 68. |
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