Planta Med 2023; 89(11): 1063-1073
DOI: 10.1055/a-2063-5265
Biological and Pharmacological Activity
Original Papers

Anti-viral and Anti-inflammatory Isoflavonoids from Ukrainian Iris aphylla Rhizomes: Structure-Activity Relationship Coupled with ChemGPS-NP Analysis

Olha Mykhailenko
1   Department of Pharmaceutical Chemistry, National University of Pharmacy of Ministry of Health of Ukraine, Kharkiv, Ukraine
2   Pharmacognosy and Phytotherapy Group, UCL School of Pharmacy, London, United Kingdom
,
Chung-Fan Hsieh
3   Research Center for Emerging Viral Infections, College of Medicine, Chang Gung University, Kweishan, Taoyuan, Taiwan
4   Department of Neurology, Linkou Chang Gung Memorial Hospital, Taoyuan City, Taiwan
,
Mohamed El-Shazly
5   Department of Pharmacognosy, Faculty of Pharmacy, Ain Shams University, African Union Organization Street, Abbassia, Cairo, Egypt
,
Alexander Nikishin
6   V. N. Karazin Kharkiv National University, Organic Chemistry Department, Kharkiv, Ukraine
,
Vladimir Kovalyov
7   Department of Pharmacognosy, National University of Pharmacy of Ministry of Health of Ukraine, Kharkiv, Ukraine
,
Pavlo Shynkarenko
8   Enamine Ltd, Kyiv, Ukraine
,
Liudas Ivanauskas
9   Lithuanian University of Health Sciences, Department of Analytical and Toxicological Chemistry, Kaunas, Lithuania
,
Bing-Hung Chen
10   Department of Biotechnology, College of Life Science, Kaohsiung, Taiwan
11   The Institute of Biomedical Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan
,
Jim-Tong Horng
3   Research Center for Emerging Viral Infections, College of Medicine, Chang Gung University, Kweishan, Taoyuan, Taiwan
12   Department of Biochemistry and Molecular Biology, College of Medicine, Chang Gung University, Kweishan, Taoyuan, Taiwan
13   Molecular Infectious Disease Research Center, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kweishan, Taoyuan, Taiwan
14   Research Center for Chinese Herbal Medicine, Chang Gung University of Science and Technology, Kweishan, Taoyuan, Taiwan
15   Graduate Institute of Health Industry Technology, College of Human Ecology, Chang Gung University of Science and Technology, Kweishan, Taoyuan, Taiwan
,
Tsong-Long Hwang
14   Research Center for Chinese Herbal Medicine, Chang Gung University of Science and Technology, Kweishan, Taoyuan, Taiwan
15   Graduate Institute of Health Industry Technology, College of Human Ecology, Chang Gung University of Science and Technology, Kweishan, Taoyuan, Taiwan
16   Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Kweishan, Taoyuan, Taiwan
17   Department of Anesthesiology, Chang Gung Memorial Hospital, Taoyuan, Taiwan
,
Victoriya Georgiyants
1   Department of Pharmaceutical Chemistry, National University of Pharmacy of Ministry of Health of Ukraine, Kharkiv, Ukraine
,
10   Department of Biotechnology, College of Life Science, Kaohsiung, Taiwan
16   Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Kweishan, Taoyuan, Taiwan
18   Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan
› Author Affiliations

The research was supported by grants from the National Science and Technology Council, Taiwan (111-2320-B-037-007 awarded to M. K. for chemical analysis and logistics; 111-2321-B-255-001, 111-2321-B-182 – 001, 109-2320-B-650-001-MY3, 109-2327-B-255-001, and 109-2327-B-182-002 awarded to T.-L. H. for bioactivity assays and instrumentation; 109-2320-B-037-004-MY3 awarded to B.-H. C. for bioactivity assays and analysis). This study was also supported by a grant from the Kaohsiung Medical University Research Foundation (KMU-Q112 006) awarded to M. K. for chemical analysis; Chang Gung Memorial Hospital (CMRPF1M0131-2, CMRPF1M0101-2, CMRPF1L0071, and CORPF1L0011) and Chang Gung University of Science and Technology (ZRRPF3L0091) awarded to T.-L. H. for bioactivity assays and technical support.
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Abstract

Dried Iris rhizomes have been used in Chinese and European traditional medicine for the treatment of various diseases such as bacterial infections, cancer, and inflammation, as well as for being astringent, laxative, and diuretic agents. Eighteen phenolic compounds including some rare secondary metabolites, such as irisolidone, kikkalidone, irigenin, irisolone, germanaism B, kaempferol, and xanthone mangiferin, were isolated for the first time from Iris aphylla rhizomes. The hydroethanolic Iris aphylla extract and some of its isolated constituents showed protective effects against influenza H1N1 and enterovirus D68 and anti-inflammatory activity in human neutrophils. The promising anti-influenza effect of apigenin (13, almost 100% inhibition at 50 µM), kaempferol (14, 92%), and quercetin (15, 48%) were further confirmed by neuraminidase inhibitory assay. Irisolidone (1, almost 100% inhibition at 50 µM), kikkalidone (5, 93%), and kaempferol (14, 83%) showed promising anti-enterovirus D68 activity in vitro. The identified compounds were plotted using ChemGPS-NP to correlate the observed activity of the isolated phenolic compounds with the in-house database of anti-influenza and anti-enterovirus agents. Our results indicated that the hydroethanolic Iris aphylla extract and Iris phenolics hold the potential to be developed for the management of seasonal pandemics of influenza and enterovirus infections.

Supporting Information



Publication History

Received: 14 July 2022

Accepted after revision: 23 March 2023

Accepted Manuscript online:
28 March 2023

Article published online:
05 June 2023

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