Antithrombotic and Antiallergic Activities of Rhaponticin from Rhei Rhizoma Are Activated by Human Intestinal Bacteria

  • Published : 2002.08.01

Abstract

To evaluate the antithrombotic and antiallergic properties of rhaponticin extracted from Rhei Rhizoma, the in vitro and ex vivo inhibitory activities of rhaponticin and its metabolite, rhapontigenin, were measured. These compounds inhibited in vitro ADP- and collagen-induced platelet aggregation. Rhapontigenin was more potent, with $IC_{50}$ values of 4 and $70{\;}{\mu}g/ml$, respectively. In ex vivo ADP- and collagen-induced rat platelet aggregation, these compounds also exhibited a potent inhibitory effect. The antiplatelet aggregation effects of rhaponticin and rhapontigenin were more potent than those of aspirin. Rhapontigenin showed significant protection from death due to pulmonary thrombosis in mice. Rhapontigenin also showed the strongest inhibitory activity against $\beta-hexosaminidase$ release induced by DNP-BSA. These compounds inhibited PCA reaction in mice. Rhapontigenin intraperitoneally administered showed the strongest inhibitory activity and significantly inhibited PCA at doses of 25 and 50 mg/kg, with inhibitory activities of 48 and 85%, respectively. The inhibitory activity of orally administered rhaponticin was stronger than that of intraperitoneally administered rhaponticin. These results suggest that rhaponticin, in the rhizome of Rhei Rhizoma, is a prodrug that has extensive antiallergic and antithrombotic properties.

Keywords

References

  1. Aronson N.N., and Davidson E.A., Lysosomal hyaluronidase from rat liver. II. Properties. J. BioI. Chem., 242, 441-444 (1967)
  2. Born, G.V.R. and Cross, M.J., The aggregation of blood platelets. J. Physiol., 168, 178-195. (1963) https://doi.org/10.1113/jphysiol.1963.sp007185
  3. Choi O.H. Kim J.H. and Kinet J.P., Calcium mobilization via sphingosine kinase in signaling by the Fc epsilon RI antigen receptor. Nature, 380, 634-636 (1996) https://doi.org/10.1038/380634a0
  4. Di Minno G.,and Silver M., Mouse antithrombotic assay: a simple method for the evaluation of antithrombotic agents in vivo. Potentiation of antithrombotic activity by ethyl alcohol. J. Pharmacol. Exp. Ther., 225, 57-60 (1983)
  5. Kashiwada Y., Nonaka Y. and Nishioka I., Studies on Rhubarb (Rhei Rhizoma) VI. Isolation and characterization of stibene. Chem. Pharm. Bull., 32, 3501-3506(1984) https://doi.org/10.1248/cpb.32.3501
  6. Katayama S., Shionoya H., and Ohtake S., A new method for extraction of extravasated dye in the skin,and the influence of fasting stress on passive cutaneous anaphylaxis in guinea pigs and rats. Microbiol. lmmunol., 22, 89-101 (1978) https://doi.org/10.1111/j.1348-0421.1978.tb00352.x
  7. Kim, D.-H., Y. K.-W., Bae, E.-A., Park. H.J., Choi, J.W., Metabolism of kalopanaxsapon B and H by human intestinal bacteria and antidiabetic activities of their metabolites. BioI. Pharm. Bull., 21, 360-365 (1998) https://doi.org/10.1248/bpb.21.360
  8. Kim D.-H., Park, E.-K., Bae, E.-A., and Han, M.J., Metabolism of rhaponticin and chrysophanol-8-O-b-D-glucopyranoside form the rhizome of Rheum undulatum by human intestinal bacteria and their antiallergic actions. BioI. Pharm. Bull., 23, 430-433 (2000)
  9. Kimura, Y., Tani, T., Kanbe, T. and Watanabe, K., Effect of cilostazol on platelet aggregation and experimental thrombosis. Arzneim., Forsch. Drug Res., 35, 1144-49 (1985)
  10. Ko., S.K., A new stibene diglycoside from Rheum undulatum. Arch. Pharm. Res., 23, 159-162 (2000) https://doi.org/10.1007/BF02975506
  11. Ko, S.K. Whang, W.K., and Kim, I.K., Anthraquinone and stilbene derivatives from the cultivated Korean Rhubarb Rhizomes. Arch. Pharm. Res. 18, 282-288 (1995) https://doi.org/10.1007/BF02976414
  12. Kobashi K. and Akao T., Relation of intestinal bacteria to pharmacological effects of glycosides. Biosci. Microflora, 16, 1-7 (1997) https://doi.org/10.12938/bifidus1996.16.1
  13. Lee, J.M., Reduohanxiao-tang. In: Longevity and life Preservation in Oriental Medicine. S.H. Choi (translated), Seoul:Kyung Hee Univ. Press, 1996, pp 153-175
  14. Matsuda H., Tomohiro N., Hirabe K., Harima S., Ko S., Mazuo K., Yoshikawa M., Kubo M., StudDLTKFKAEMFDL..y on Anti-Oketsu Activity of Rhurbarb II., Antiallergic Effects of stibene components from Rhei Rhizoma (Dried Rhizome of Rheum undulatum cultivated in Korea). BioI. Pharm. Bull., 24, 264-267 (2001) https://doi.org/10.1248/bpb.24.264
  15. MacMahon S., and Sharpe N., Long-term antiplatelet therapy for the prevention of vascular disease. Med. J. Aust., 154, 477-480 (1991)
  16. Okabe H., Matus K., and Nishioka I., Studies on Rhubarb(Rhei Rhizoma) II, Anthraquinone glycosides. Chem. Pharm. Bull., 21, 1254-1260 (1973) https://doi.org/10.1248/cpb.21.1254
  17. Oshino, H., Naruse Y., and Tsukui M., Quantilative analysis of the purgative components of Rhubarb and Senna. Chem. Pharm. Bull., 26, 2458-2464 (1978) https://doi.org/10.1248/cpb.26.2458
  18. Packham M.A., Role of platelets in thrombosis and hemostasis. Can. J. Physiol. Pharmacol., 72, 2782-2784 (1994)
  19. Stein B., and Fuster V., Role of platelet inhibitor therapy in myocardial infarction. Cardiovasc. Drugs Ther., 3, 797-813 (1989) https://doi.org/10.1007/BF01869563
  20. Tasaka K., Mitsunobu M., and Okamoto, M., Intracellular calcium release induced by histamine releasers and its inhibition by some antiallergic drugs. Annal. Allergy, 6, 464-469 (1986)