1
|
Zakirova L, Baikova I, Lobov A, Kukovinets O, Кazakova O. An unexpected conversion of 2E-furfurylidene-3-oxo-24-nor-allobetulin to 23-nor-allobetulins. Steroids 2024; 203:109379. [PMID: 38286318 DOI: 10.1016/j.steroids.2024.109379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 01/23/2024] [Accepted: 01/24/2024] [Indexed: 01/31/2024]
Abstract
A series of 2E-furfurylidene-23-nor- and 24-nor-allobetulins has been synthesized by the Claisen-Schmidt condensation and conditions of their formation were studied in detail. It was found that among an expected 2E-furfurylidene-3-oxo-24-nor-allobetulin 4 two byproducts holding 3-oxo-4α-hydroxy- 5 and 3β,4α-dihydroxy- 6 substituents were formed, which could become the main products under the change of reaction time and amount of the base solution. Moreover, a conversion of individual 2E-furfurylidene-23-nor-3-oxo-4α-hydroxy- 5 into 2E-furfurylidene-23-nor-3β,4α-dihydroxy-derivative 6 under the treatment with the base solution was observed. An inversion of the configuration at C4 from 24-nor- to 23-nor-allobetulins for compounds 5 - 7 was proved by the NMR spectra. The probable explanation of compound 5 formation includes oxidation by atmospheric oxygen to 4-hydroperoxide, which was further transformed into 4-hydroxy-group. In the presence of the base the reduction C3(=O)-function of compound 5 occurs like Meerwein- Ponndorf-Verley reaction to give compound 6. As a result, a difference in the reactivity of native allobetulin scaffold and 24-nor-allobetulin in the Claisen-Schmidt condensation was observed and a first case of conversion 24-nor- to 23-nor-allobetulin derivatives was described.
Collapse
Affiliation(s)
- Liana Zakirova
- Ufa Institute of Chemistry, Ufa Federal Research Centre of the Russian Academy of Sciences, 71, prospect Oktyabrya, 450054 Ufa, Russian Federation
| | - Irina Baikova
- Ufa Institute of Chemistry, Ufa Federal Research Centre of the Russian Academy of Sciences, 71, prospect Oktyabrya, 450054 Ufa, Russian Federation
| | - Alexander Lobov
- Ufa Institute of Chemistry, Ufa Federal Research Centre of the Russian Academy of Sciences, 71, prospect Oktyabrya, 450054 Ufa, Russian Federation
| | - Olga Kukovinets
- Ufa Institute of Chemistry, Ufa Federal Research Centre of the Russian Academy of Sciences, 71, prospect Oktyabrya, 450054 Ufa, Russian Federation
| | - Oxana Кazakova
- Ufa Institute of Chemistry, Ufa Federal Research Centre of the Russian Academy of Sciences, 71, prospect Oktyabrya, 450054 Ufa, Russian Federation.
| |
Collapse
|
2
|
Zhu Z, Zhou H, Chen F, Deng J, Yin L, He B, Hu Q, Wang T. Synthesis, Antitumor of Sinomenine Derivatives and Apoptotic Induction via IL-6/PI3K/Akt/NF-κB Signaling Pathway in MCF-7 Cells. ChemMedChem 2022; 17:e202200234. [PMID: 35612514 DOI: 10.1002/cmdc.202200234] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 05/19/2022] [Indexed: 11/07/2022]
Abstract
Natural products have been widely considered as an important resource for new drugs or lead compounds. Sinomenine (SIN) and its derivatives exert antitumor activity via regulation of inflammatory mediators. For these reasons we synthesized three series of SIN derivatives (compounds 4a-i, 7a-c and 11a-c) as antitumor agents from this natural product. All compounds were prepared by the modification at the C1 and C4 positions of A ring, the C4 position of A ring and the C6 and C7 positions of C ring, respectively. All the derivatives were subjected to in vitro antitumor activity against HeLa, A549, HepG-2, MCF-7 and HT-29 cell lines. To observe the apoptotic induction of SIN derivatives and its mechanism, fluorescent staining and western bolt were carried out for active compound against MCF-7. Based on the screening results, most of SIN derivatives showed better antitumor activity than SIN. Some of them were found to possess broad spectrum antitumor activity. Most notably, 11c exhibited obvious antitumor activity in both cell lines with IC50 value less than 11 μM. Besides, 11c induced apoptosis of MCF-7 in a dose-dependent manner. Western blot assay demonstrated that 11c inhibited IL-6-mediated activation of PI3K/Akt pathway. A docking study revealed that 11c had stronger binding interaction with the residues of IL-6 than SIN. All these results indicate that 11c may be a potential anti-breast cancer agent by directly targeting IL-6.
Collapse
Affiliation(s)
- Zuchang Zhu
- Guangzhou University of Chinese Medicine, School of Pharmaceutical Sciences, waihuandong Road #232, Guangzhou Higher Education Mega Center, Guangzhou, China, Guangdong, China, 510006, Guangzhou, CHINA
| | - Huixian Zhou
- Guangzhou University of Chinese Medicine, School of Pharmaceutical Sciences, waihuandong Road #232, Guangzhou Higher Education Mega Center, Guangzhou, China, Guangdong, China, 510006, Guangzhou, CHINA
| | - Fenglian Chen
- Guangzhou University of Traditional Chinese Medicine: Guangzhou University of Chinese Medicine, School of Pharmaceutical Sciences, waihuandong Road #232, Guangzhou Higher Education Mega Center, Guangzhou, China, Guangdong, China, 510006, Guangzhou, CHINA
| | - Jianxiong Deng
- Guangzhou University of Traditional Chinese Medicine: Guangzhou University of Chinese Medicine, School of Pharmaceutical Sciences, waihuandong Road #232, Guangzhou Higher Education Mega Center, Guangzhou, China, Guangdong, China, 510006, Guangzhou, CHINA
| | - Lina Yin
- Guangzhou University of Traditional Chinese Medicine: Guangzhou University of Chinese Medicine, School of Pharmaceutical Sciences, waihuandong Road #232, Guangzhou Higher Education Mega Center, Guangzhou, China, Guangdong, China, 510006, Guangzhou, CHINA
| | - Baoen He
- United Biotechnology, Department of Purification R&D, Anji Road #2428, Sanzao Town, Jinwan District, Zhuhai City, Guangdong, China, 519041, Zhuhai, CHINA
| | - Qingzhong Hu
- Guangzhou University of Traditional Chinese Medicine: Guangzhou University of Chinese Medicine, School of Pharmaceutical Sciences, waihuandong Road #232, Guangzhou Higher Education Mega Center, Guangzhou, China, Guangdong, China, 510006, Guangzhou, CHINA
| | - Tao Wang
- Guangzhou University of Chinese Medicine, School of Pharmaceutical Sciences, 510006, Guangzhou, CHINA
| |
Collapse
|
3
|
Khusnutdinova E, Petrova A, Zileeva Z, Kuzmina U, Zainullina L, Vakhitova Y, Babkov D, Kazakova O. Novel A-Ring Chalcone Derivatives of Oleanolic and Ursolic Amides with Anti-Proliferative Effect Mediated through ROS-Triggered Apoptosis. Int J Mol Sci 2021; 22:9796. [PMID: 34575964 PMCID: PMC8465963 DOI: 10.3390/ijms22189796] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 09/06/2021] [Indexed: 12/22/2022] Open
Abstract
A series of A-ring modified oleanolic and ursolic acid derivatives including C28 amides (3-oxo-C2-nicotinoylidene/furfurylidene, 3β-hydroxy-C2-nicotinoylidene, 3β-nicotinoyloxy-, 2-cyano-3,4-seco-4(23)-ene, indolo-, lactame and azepane) were synthesized and screened for their cytotoxic activity against the NCI-60 cancer cell line panel. The results of the first assay of thirty-two tested compounds showed that eleven derivatives exhibited cytotoxicity against cancer cells, and six of them were selected for complete dose-response studies. A systematic study of local SARs has been carried out by comparative analysis of potency distributions and similarity relationships among the synthesized compounds using network-like similarity graphs. Among the oleanane type triterpenoids, C2-[4-pyridinylidene]-oleanonic C28-morpholinyl amide exhibited sub-micromolar potencies against 15 different tumor cell lines and revealed particular selectivity for non-small cell lung cancer (HOP-92) with a GI50 value of 0.0347 μM. On the other hand, superior results were observed for C2-[3-pyridinylidene]-ursonic N-methyl-piperazinyl amide 29, which exhibited a broad-spectrum inhibition activity with GI50 < 1 μM against 33 tumor cell lines and <2 μM against all 60 cell lines. This compound has been further evaluated for cell cycle analysis to decipher the mechanism of action. The data indicate that compound 29 could exhibit both cytostatic and cytotoxic activity, depending on the cell line evaluated. The cytostatic activity appears to be determined by induction of the cell cycle arrest at the S (MCF-7, SH-SY5Y cells) or G0/G1 phases (A549 cells), whereas cytotoxicity of the compound against normal cells is nonspecific and arises from apoptosis without significant alterations in cell cycle distribution (HEK293 cells). Our results suggest that the antiproliferative effect of compound 29 is mediated through ROS-triggered apoptosis that involves mitochondrial membrane potential depolarization and caspase activation.
Collapse
Affiliation(s)
- Elmira Khusnutdinova
- Ufa Institute of Chemistry UFRC RAS, 71 pr. Oktyabrya, 450054 Ufa, Russia; (E.K.); (A.P.)
| | - Anastasiya Petrova
- Ufa Institute of Chemistry UFRC RAS, 71 pr. Oktyabrya, 450054 Ufa, Russia; (E.K.); (A.P.)
| | - Zulfia Zileeva
- Institute of Biochemistry and Genetics UFRC RAS, 71 pr. Oktyabrya, 450054 Ufa, Russia; (Z.Z.); (U.K.); (L.Z.); (Y.V.)
| | - Ulyana Kuzmina
- Institute of Biochemistry and Genetics UFRC RAS, 71 pr. Oktyabrya, 450054 Ufa, Russia; (Z.Z.); (U.K.); (L.Z.); (Y.V.)
| | - Liana Zainullina
- Institute of Biochemistry and Genetics UFRC RAS, 71 pr. Oktyabrya, 450054 Ufa, Russia; (Z.Z.); (U.K.); (L.Z.); (Y.V.)
| | - Yulia Vakhitova
- Institute of Biochemistry and Genetics UFRC RAS, 71 pr. Oktyabrya, 450054 Ufa, Russia; (Z.Z.); (U.K.); (L.Z.); (Y.V.)
| | - Denis Babkov
- Scientific Center for Innovative Drugs, Volgograd State Medical University, 39 Novorossiyskaya St., 400087 Volgograd, Russia;
| | - Oxana Kazakova
- Ufa Institute of Chemistry UFRC RAS, 71 pr. Oktyabrya, 450054 Ufa, Russia; (E.K.); (A.P.)
| |
Collapse
|
4
|
He B, Zhu Z, Chen F, Zhang R, Chen W, Zhang T, Wang T, Lei J. Synthesis and antitumor potential of new arylidene ursolic acid derivatives via caspase-8 activation. Arch Pharm (Weinheim) 2021; 354:e2000448. [PMID: 33646592 DOI: 10.1002/ardp.202000448] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 01/22/2021] [Accepted: 01/29/2021] [Indexed: 12/11/2022]
Abstract
Continuing our studies on NO-donating ursolic acid-benzylidene derivatives as potential antitumor agents, we designed and synthesized a series of new arylidene derivatives containing NO-donating ursolic acid and aromatic heterocyclic units. Compounds 5c and 6c showed a significant broad-spectrum antitumor activity. Compound 5c exhibited nearly three- to nine-fold higher cytotoxicity as compared with the parent drug in A549, MCF-7, HepG-2, HT-29, and HeLa cells, and it was also found to be the most potent apoptosis inducer of MCF-7 cells. More importantly, compound 5c arrested the MCF-7 cell cycle in the G1 phase, which was associated with caspase activation and a decrease of the Bcl-2/Bax ratio. Meanwhile, compound 5c caused changes in morphological features, dissipation of the mitochondrial membrane potential, and accumulation of reactive oxygen species. A docking study revealed that the nitroxyethyl moiety of compound 5c may form hydrogen bonds with caspase-8 amino acid residues (SER256 and HIS255). Together, these data suggest that NO-donating ursolic acid-arylidene derivatives are potent apoptosis inducers in tumor cells.
Collapse
Affiliation(s)
- Baoen He
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Zuchang Zhu
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Fenglian Chen
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Rong Zhang
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Weiqiang Chen
- School of Nursing, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Te Zhang
- Department of Research and Development, Shanghai Hequan Pharmaceutical Co. Ltd., Shanghai, China
| | - Tao Wang
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Jiamei Lei
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| |
Collapse
|
5
|
Khwaza V, Oyedeji OO, Aderibigbe BA. Ursolic Acid-Based Derivatives as Potential Anti-Cancer Agents: An Update. Int J Mol Sci 2020; 21:E5920. [PMID: 32824664 PMCID: PMC7460570 DOI: 10.3390/ijms21165920] [Citation(s) in RCA: 68] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Revised: 05/12/2020] [Accepted: 05/21/2020] [Indexed: 12/13/2022] Open
Abstract
Ursolic acid is a pharmacologically active pentacyclic triterpenoid derived from medicinal plants, fruit, and vegetables. The pharmacological activities of ursolic acid have been extensively studied over the past few years and various reports have revealed that ursolic acid has multiple biological activities, which include anti-inflammatory, antioxidant, anti-cancer, etc. In terms of cancer treatment, ursolic acid interacts with a number of molecular targets that play an essential role in many cell signaling pathways. It suppresses transformation, inhibits proliferation, and induces apoptosis of tumor cells. Although ursolic acid has many benefits, its therapeutic applications in clinical medicine are limited by its poor bioavailability and absorption. To overcome such disadvantages, researchers around the globe have designed and developed synthetic ursolic acid derivatives with enhanced therapeutic effects by structurally modifying the parent skeleton of ursolic acid. These structurally modified compounds display enhanced therapeutic effects when compared to ursolic acid. This present review summarizes various synthesized derivatives of ursolic acid with anti-cancer activity which were reported from 2015 to date.
Collapse
Affiliation(s)
| | | | - Blessing A. Aderibigbe
- Department of Chemistry, University of Fort Hare, Alice Campus, Alice 5700, Eastern Cape, South Africa; (V.K.); (O.O.O.)
| |
Collapse
|