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Baltina LA, Baltina LA, Petrova SF, Gabdrakhmanova SF, Makara NS, Sapozhnikova TA. Synthesis of Glycyrrhizic Acid Conjugates with Amino-Acid Methyl Esters and their Ability to Stimulate Antibody Genesis in Mice. Pharm Chem J 2022; 56:894-898. [PMID: 36268163 PMCID: PMC9568971 DOI: 10.1007/s11094-022-02724-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Indexed: 11/29/2022]
Abstract
Conjugates of glycyrrhizic acid (GA) with methyl esters of L-amino acids (valine, methionine, and glutamic acid) containing the amino-acid residues in the carbohydrate moiety of the glycoside were synthesized using 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide. The resulting GA conjugates at a dose of 2 mg/kg stimulated a primary immune response (production of antibody-forming cells, AFCs) in outbred mice by 1.6 - 3 times as compared with the control. The conjugate of GA with Glu(OMe)2 stimulated antibody genesis in outbred mice 1.7 times more efficiently than N-acetylmuramyl dipeptide and showed a stimulating effect on AFC production in the spleen of CBA mice.
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Affiliation(s)
- L. A. Baltina
- Ufa Institute of Chemistry, Branch of Ufa Federal Research Center, Russian Academy of Sciences, 71 Prosp. Oktyabrya, Ufa, 450054 Russia
| | - L. A. Baltina
- Ufa Institute of Chemistry, Branch of Ufa Federal Research Center, Russian Academy of Sciences, 71 Prosp. Oktyabrya, Ufa, 450054 Russia
| | - S. F. Petrova
- Ufa Institute of Chemistry, Branch of Ufa Federal Research Center, Russian Academy of Sciences, 71 Prosp. Oktyabrya, Ufa, 450054 Russia
| | - S. F. Gabdrakhmanova
- Ufa Institute of Chemistry, Branch of Ufa Federal Research Center, Russian Academy of Sciences, 71 Prosp. Oktyabrya, Ufa, 450054 Russia
| | - N. S. Makara
- Ufa Institute of Chemistry, Branch of Ufa Federal Research Center, Russian Academy of Sciences, 71 Prosp. Oktyabrya, Ufa, 450054 Russia
| | - T. A. Sapozhnikova
- Ufa Institute of Chemistry, Branch of Ufa Federal Research Center, Russian Academy of Sciences, 71 Prosp. Oktyabrya, Ufa, 450054 Russia
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Baltina LA, Hour MJ, Liu YC, Chang YS, Huang SH, Lai HC, Kondratenko RM, Petrova SF, Yunusov MS, Lin CW. Antiviral activity of glycyrrhizic acid conjugates with amino acid esters against Zika virus. Virus Res 2020; 294:198290. [PMID: 33388394 DOI: 10.1016/j.virusres.2020.198290] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 12/15/2020] [Accepted: 12/25/2020] [Indexed: 12/24/2022]
Abstract
Zika virus (ZIKV) is a new pathogenic flavivirus transmitted by mosquitoes Aedes spp. ZIKV infection is accompanied by serious neurological complications and is especially dangerous for pregnant women, in which it can lead to congenital malformations of the fetus and microcephaly in neonates. Currently, there are no licensed vaccines or specific post-infectious therapies for ZIKV infection. This report is devoted to the study of glycyrrhizic acid (GL) derivatives as ZIKV inhibitors. The inhibitory assays on the cytopathic effect (CPE) and viral infectivity of ZIKV in three different human cell lines revealed that the conjugation of GL with amino acids and their esters (methyl, ethyl) is influenced by the antiviral activity of the compounds. GL conjugates with Glu(OMe)-OMe 11, Glu(OH)-OMe 12, Asp(OMe)-OMe 13, TyrOMe 14, LeuOEt 15, and PheOEt 16 with free COOH groups in the triterpene moiety were active against ZIKV. The most active compounds 13 and 14 have IC50 values of 0.23 μM and 0.09 μM against low doses (MOI = 0.05) of ZIKV strain PRVABC59, 1.20 μM and 0.74 μM against high doses (MOI = 10) of ZIKV strain Natal RGN single-round infectious particles, respectively. The lead compound was 14 with a high selectivity index (SI < 500). Compound 13 showed a higher inhibitory effect on the early stage (entry) of ZIKV replication than compound 14, and was less potent than compound 14 at the post-entry stage, consistent with the docking models. Compounds 13 and 14 also had a strong interaction with the active site pocket of NS5 MTase. Compounds 13 and 14 are recommended for expanded antiviral studies against ZIKV infection.
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Affiliation(s)
- Lidia A Baltina
- Ufa Institute of Chemistry, Ufa Federal Research Centre of RAS, Ufa, 450054, Russian Federation.
| | - Mann-Jen Hour
- School of Pharmacy, China Medical University, Taichung, 40402, Taiwan
| | - Ya-Chi Liu
- Department of Medical Laboratory Science and Biotechnology, China Medical University, Taichung, 40402, Taiwan; Graduate Institute of Biomedical Sciences, College of Medicine, China Medical University, Taichung, 40402, Taiwan
| | - Young-Sheng Chang
- Department of Medical Laboratory Science and Biotechnology, China Medical University, Taichung, 40402, Taiwan; Graduate Institute of Biomedical Sciences, College of Medicine, China Medical University, Taichung, 40402, Taiwan
| | - Su-Hua Huang
- Department of Biotechnology, Asia University, Taichung 41354, Taiwan
| | - Hsueh-Chou Lai
- Division of Hepato-gastroenterology, Department of Internal Medicine, China Medical University Hospital, Taichung, 40447, Taiwan
| | | | - Svetlana F Petrova
- Ufa Institute of Chemistry, Ufa Federal Research Centre of RAS, Ufa, 450054, Russian Federation
| | - Marat S Yunusov
- Ufa Institute of Chemistry, Ufa Federal Research Centre of RAS, Ufa, 450054, Russian Federation
| | - Cheng-Wen Lin
- Department of Medical Laboratory Science and Biotechnology, China Medical University, Taichung, 40402, Taiwan; Graduate Institute of Biomedical Sciences, College of Medicine, China Medical University, Taichung, 40402, Taiwan; Department of Biotechnology, Asia University, Taichung 41354, Taiwan.
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Baltina LA, Tasi YT, Huang SH, Lai HC, Baltina LA, Petrova SF, Yunusov MS, Lin CW. Glycyrrhizic acid derivatives as Dengue virus inhibitors. Bioorg Med Chem Lett 2019; 29:126645. [PMID: 31519375 PMCID: PMC7172207 DOI: 10.1016/j.bmcl.2019.126645] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 08/23/2019] [Accepted: 08/28/2019] [Indexed: 11/29/2022]
Abstract
It is the first report to display structure-anti-DENV activity relationships of Glycyrrhizic acid (GL) derivatives. GL conjugates with isoleucine 13 and 11-aminoundecanoic acid 17 have been identified as potent DENV2 inhibitors. GL derivatives 13 and 17 showed lower IC50 values (1.2–1.3 μM) against DENV2 infectivity in Vero E6 cells than GL (IC50 8.1 μM).
Dengue virus (DENV) is one of the most geographically distributed pathogenic flaviviruses transmitted by mosquitoes Aedes sps. In this study, the structure-antiviral activity relationships of Glycyrrhizic acid (GL) derivatives was evaluated by the inhibitory assays on the cytopathic effect (CPE) and viral infectivity of DENV type 2 (DENV2) in Vero E6 cells. GL (96% purity) had a low cytotoxicity to Vero E6 cells, inhibited DENV2-induced CPE, and reduced the DENV-2 infectivity with the IC50 of 8.1 μM. Conjugation of GL with amino acids or their methyl esters and the introduction of aromatic acylhydrazide residues into the carbohydrate part strongly influenced on the antiviral activity. Among compounds tested GL conjugates with isoleucine 13 and 11-aminoundecanoic acid 17 were found as potent anti-DENV2 inhibitors (IC50 1.2–1.3 μM). Therefore, modification of GL is a perspective way in the search of new antivirals against DENV2 infection.
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Affiliation(s)
- Lidia A Baltina
- Ufa Institute of Chemistry, Ufa Federal Research Centre of RAS, 71, Prospect Oktyabrya, Ufa 450054, Russian Federation.
| | - Yan-Ting Tasi
- Department of Medical Laboratory Science and Biotechnology, China Medical University, 91, Hsueh-Shih Rd., Taichung 40402, Taiwan, ROC; Department of Biotechnology, Asia University, 500, Lioufeng Rd., Wufeng, Taichung 41354, Taiwan, ROC
| | - Su-Hua Huang
- Department of Biotechnology, Asia University, 500, Lioufeng Rd., Wufeng, Taichung 41354, Taiwan, ROC
| | - Hsueh-Chou Lai
- School of Chinese Medicine, China Medical University, 91, Hsueh-Shih Rd., Taichung 40402, Taiwan, ROC; Division of Hepato-gastroenterology, Department of Internal Medicine, China Medical University Hospital, 2, Yude Rd., Taichung 40447, Taiwan, ROC
| | - Lia A Baltina
- Ufa Institute of Chemistry, Ufa Federal Research Centre of RAS, 71, Prospect Oktyabrya, Ufa 450054, Russian Federation
| | - Svetlana F Petrova
- Ufa Institute of Chemistry, Ufa Federal Research Centre of RAS, 71, Prospect Oktyabrya, Ufa 450054, Russian Federation
| | - Marat S Yunusov
- Ufa Institute of Chemistry, Ufa Federal Research Centre of RAS, 71, Prospect Oktyabrya, Ufa 450054, Russian Federation
| | - Cheng-Wen Lin
- Department of Medical Laboratory Science and Biotechnology, China Medical University, 91, Hsueh-Shih Rd., Taichung 40402, Taiwan, ROC; Department of Biotechnology, Asia University, 500, Lioufeng Rd., Wufeng, Taichung 41354, Taiwan, ROC; Chinese Medicine Research Center, China Medical University, 91, Hsueh-Shih Rd., Taichung 40402, Taiwan, ROC.
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Baltina LA, Chistoedova ES, Baltina LA, Kondratenko RM, Plyasunova OA. Synthesis and anti-HIV-1 activity of new conjugates of 18 β- and 18 α-glycyrrhizic acids with aspartic acid esters. Chem Nat Compd 2012; 48:262-266. [PMID: 32214422 PMCID: PMC7088273 DOI: 10.1007/s10600-012-0217-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2011] [Indexed: 11/17/2022]
Abstract
New conjugates of 18β- and 18α-glycyrrhizic acids (GAs) each containing two di- or α-methyl esters of L-aspartic acid in the carbohydrate part of the glycosides were synthesized by the activated ester method using the N-hydroxysuccinimide (HOSu) and N,N'-dicyclohexylcarbodiimide. It was found that the conjugate of 18β-GA with Asp(OMe)(OMe) (4) at a concentration of 250 μg/mL inhibited effectively RT of HIV-1 and the accumulation of virus antigen p24 in MT-4 cell culture (95-97 %) and protected cells from the cytopathogenic action of the virus.
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Affiliation(s)
- L. A. Baltina
- Institute of Organic Chemistry, Ufa Scientific Center, Russian Academy of Sciences, 450054 Ufa, Russia
| | - E. S. Chistoedova
- Institute of Organic Chemistry, Ufa Scientific Center, Russian Academy of Sciences, 450054 Ufa, Russia
| | - L. A. Baltina
- Institute of Organic Chemistry, Ufa Scientific Center, Russian Academy of Sciences, 450054 Ufa, Russia
| | | | - O. A. Plyasunova
- State Scientific Center Vector, Kolˈtsovo, Novosibirsk Oblast Russia
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Fast synthesis of uronamides by non-catalyzed opening of glucopyranurono-6,1-lactone with amines, amino acids, and aminosugars. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2010.03.019] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Baltina LA, Kondratenko RM, Baltina LA, Baschenko NZ, Pl’yasunova OA. [Synthesis and biological activity of new glycyrrhizic acid conjugates with amino acids and dipeptides]. BIOORGANICHESKAIA KHIMIIA 2009; 35:563-71. [PMID: 19928060 PMCID: PMC7088709 DOI: 10.1134/s1068162009040141] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/30/2008] [Accepted: 10/30/2008] [Indexed: 11/25/2022]
Abstract
New glycyrrhizic acid (GA) conjugates were synthesized with the use of tert-butyl esters of amino acids or benzyl esters of dipeptides; they contained two residues of L-amino acids (Met, Phe, Pro, and Ile or dipeptides Gly-Leu and Gly-Phe). Activation of GA carboxy groups was carried out with the help of N-hydroxysuccinimide, N,N'-dicyclohexylcarbodiimide, or N-hydroxybenzotriazole with dicyclohexylcarbodiimide. A proline-containing GA derivative is a low-toxic substance; it raises the level of agglutinins by 3.7 times in the blood of mice and 3 times that of hemolysins compared with the control. Dipeptide GA derivatives possess an expressed anti-HIV-1 activity in cultures of MT-4 cells and are 90-70 times less cytotoxic than azidothymidine. The selectivity index of the compounds exceeds those of GA by 110 and 34 times, respectively.
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Affiliation(s)
- L. A. Baltina
- Bashkortostan State Medical University, ul. Lenina 3, Ufa, 450074 Bashkortostan Russia
| | - R. M. Kondratenko
- Bashkortostan State Medical University, ul. Lenina 3, Ufa, 450074 Bashkortostan Russia
| | - L. A. Baltina
- Institute of Organic Chemistry, Ufa Scientific Center, Russian Academy of Sciences, Ufa, 450054 Bashkortostan Russia
| | - N. Z. Baschenko
- Institute of Organic Chemistry, Ufa Scientific Center, Russian Academy of Sciences, Ufa, 450054 Bashkortostan Russia
| | - O. A. Pl’yasunova
- Vector State Scientific Center, pos. Kol’tsovo, Novosibirsk oblast, 633159 Russia
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Inhibitory effects of some derivatives of glycyrrhizic acid against Epstein-Barr virus infection: structure-activity relationships. Antiviral Res 2008; 79:6-11. [PMID: 18423902 PMCID: PMC7114209 DOI: 10.1016/j.antiviral.2008.01.160] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2007] [Revised: 01/08/2008] [Accepted: 01/31/2008] [Indexed: 01/18/2023]
Abstract
Glycyrrhizic acid (18β-GL or GL) is a herbal drug with a broad spectrum of antiviral activities and pharmacological effects and multiple sites of action. Previously we showed that GL inhibits Epstein-Barr virus (EBV) infection in vitro by interfering with an early step of the EBV replication cycle (possibly attachment/penetration). Here we tested the effects of 15 GL derivatives against EBV infection by scoring the numbers of cell expressing viral antigens and quantifying EBV DNA copy numbers in superinfected Raji cells. The derivatives were made either by transformation of GL on carboxyl and hydroxyl groups or by conjugation of amino acid residues into the carbohydrate part. We identified seven compounds active against EBV and all showed dose-dependent inhibition as determined by both assays. Among these active compounds, the introduction of amino acid residues into the GL carbohydrate part enhanced the antiviral activity in three of the seven active compounds. However, when Glu(OH)-OMe was substituted by Glu(OMe)-OMe, its antiviral activity was completely abolished. Introduction of potassium or ammonium salt to GL reduced the antiviral activity with no significant effect on cytotoxicity. The α-isomer (18α-GL) of 18β-GL was as potent as the β-form, but its sodium salt lost antiviral activity. The metabolic product of GL, 18β-glycyrrhetinic acid (18β-GA or GA), was 7.5-fold more active against EBV than its parental compound GL but, concomitantly, exhibited increased cytotoxicity resulting in a decreased therapeutic index.
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