Liu J, Xin Y, Qiu Z, Zhang Q, He T, Qiu Y, Wang W.
Cordyceps sinensis-mediated biotransformation of notoginsenoside R1 into 25-OH-20(
S/
R)-R2 with elevated cardioprotective effect against DOX-induced cell injury.
RSC Adv 2022;
12:12938-12946. [PMID:
35497008 PMCID:
PMC9049007 DOI:
10.1039/d2ra01470j]
[Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Accepted: 04/20/2022] [Indexed: 02/02/2023] Open
Abstract
Notoginsenoside R1 is a dammarane saponin in Panax notoginseng with promising cardioprotective effects. The bioactivity–structure relationship of such saponins suggested that the presence of a hydroxyl group at C25 could elevate its performance. To fulfill that goal, bioconversion of notoginsenoside R1 was mediated by a biocatalytic system of Cordyceps sinensis that had successfully produced multiple 25-OH derivatives from ginsenoside Re and Rg1. The major metabolic products of notoginsenoside R1 were identified as 25-OH-20(S/R)-R2 via the techniques of HRMS, 13C-NMR, 1H-NMR, HSQC and HMBC. Time-course experiments were designed to monitor the reaction process, establishing a biocatalytic pathway of “R1→20(S/R)-R2→25-OH-20(S/R)-R2”. The bioconversion rate of these 25-OH derivatives added up to 69.87% which greatly precedes the previous report. Afterwards, the effect of these biocatalytic products against doxorubicin-induced cardiotoxicity was evaluated, indicating a significant increase in efficacy after the hydration of the C24–C25 double bond on the dammarane skeleton. In conclusion, the biocatalytic system employed in this paper is able to harvest 25-OH-20(S/R)-R2 in high yield from notoginsenoside R1, which will provide lead compounds or drug candidates to alleviate myocardial injury caused by doxorubicin.
The biocatalytic system in this paper preferably yielded 25-OH notoginsenoside R2 from R1 in a regioselective manner. Such a process significantly elevated the effects of these 25-OH derivatives against DOX-induced cardiomyocyte injury.![]()
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