1
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Tan S, Zard SZ, Pham LN, Coote ML, Banwell MG, Lan P, White LV. Short Formal Syntheses of Lycorine and Congeners Using a 5 -Endo-Trig/6 -Endo-Trig Radical Cyclization Sequence. Org Lett 2024; 26:4292-4296. [PMID: 38728657 DOI: 10.1021/acs.orglett.4c01271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/12/2024]
Abstract
Here, we report a practical route to medicinally interesting lycorine congeners alongside formal syntheses of various lycorine-type natural products, including lycorine itself. The efficiency of our strategy derives from a back-to-back 5-endo-trig/6-endo-trig radical cyclization sequence, which we systematically studied both experimentally and computationally. The results of our work will facilitate future development of urgently needed antiviral therapeutics based on lycorine.
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Affiliation(s)
- Shen Tan
- Institute for Advanced and Applied Chemical Synthesis, College of Pharmacy, Jinan University, Guangzhou, Guangdong 510632, China
- Laboratoire de Synthèse Organique, CNRS, École Polytechnique, Palaiseau 91128, France
| | - Samir Z Zard
- Laboratoire de Synthèse Organique, CNRS, École Polytechnique, Palaiseau 91128, France
| | - Le Nhan Pham
- Institute for Nanoscale Science and Technology, College of Science and Engineering, Flinders University, Adelaide, South Australia 5042, Australia
| | - Michelle L Coote
- Institute for Nanoscale Science and Technology, College of Science and Engineering, Flinders University, Adelaide, South Australia 5042, Australia
| | - Martin G Banwell
- Institute for Advanced and Applied Chemical Synthesis, College of Pharmacy, Jinan University, Guangzhou, Guangdong 510632, China
| | - Ping Lan
- Institute for Advanced and Applied Chemical Synthesis, College of Pharmacy, Jinan University, Guangzhou, Guangdong 510632, China
| | - Lorenzo V White
- Institute for Advanced and Applied Chemical Synthesis, College of Pharmacy, Jinan University, Guangzhou, Guangdong 510632, China
- Laboratoire de Synthèse Organique, CNRS, École Polytechnique, Palaiseau 91128, France
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2
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Geng Y, Liu X, Yu Y, Li W, Mou Y, Chen F, Hu X, Ji J, Ma L. From polyphenol to o-quinone: Occurrence, significance, and intervention strategies in foods and health implications. Compr Rev Food Sci Food Saf 2023; 22:3254-3291. [PMID: 37219415 DOI: 10.1111/1541-4337.13182] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 05/07/2023] [Accepted: 05/08/2023] [Indexed: 05/24/2023]
Abstract
Polyphenol oxidation is a chemical process impairing food freshness and other desirable qualities, which has become a serious problem in fruit and vegetable processing industry. It is crucial to understand the mechanisms involved in these detrimental alterations. o-Quinones are primarily generated by polyphenols with di/tri-phenolic groups through enzymatic oxidation and/or auto-oxidation. They are highly reactive species, which not only readily suffer the attack by nucleophiles but also powerfully oxidize other molecules presenting lower redox potentials via electron transfer reactions. These reactions and subsequent complicated reactions are capable of initiating quality losses in foods, such as browning, aroma loss, and nutritional decline. To attenuate these adverse influences, a variety of technologies have emerged to restrain polyphenol oxidation via governing different factors, especially polyphenol oxidases and oxygen. Despite tremendous efforts devoted, to date, the loss of food quality caused by quinones has remained a great challenge in the food processing industry. Furthermore, o-quinones are responsible for the chemopreventive effects and/or toxicity of the parent catechols on human health, the mechanisms by which are quite complex. Herein, this review focuses on the generation and reactivity of o-quinones, attempting to clarify mechanisms involved in the quality deterioration of foods and health implications for humans. Potential innovative inhibitors and technologies are also presented to intervene in o-quinone formation and subsequent reactions. In future, the feasibility of these inhibitory strategies should be evaluated, and further exploration on biological targets of o-quinones is of great necessity.
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Affiliation(s)
- Yaqian Geng
- College of Food Science and Nutritional Engineering, National Engineering Research Centre for Fruits and Vegetables Processing, Key Laboratory of Fruits and Vegetables Processing, Ministry of Agriculture, Engineering Research Centre for Fruits and Vegetables Processing, Ministry of Education, China Agricultural University, Beijing, China
| | - Xinyu Liu
- College of Food Science and Nutritional Engineering, National Engineering Research Centre for Fruits and Vegetables Processing, Key Laboratory of Fruits and Vegetables Processing, Ministry of Agriculture, Engineering Research Centre for Fruits and Vegetables Processing, Ministry of Education, China Agricultural University, Beijing, China
| | - Yiran Yu
- College of Food Science and Nutritional Engineering, National Engineering Research Centre for Fruits and Vegetables Processing, Key Laboratory of Fruits and Vegetables Processing, Ministry of Agriculture, Engineering Research Centre for Fruits and Vegetables Processing, Ministry of Education, China Agricultural University, Beijing, China
| | - Wei Li
- College of Food Science and Nutritional Engineering, National Engineering Research Centre for Fruits and Vegetables Processing, Key Laboratory of Fruits and Vegetables Processing, Ministry of Agriculture, Engineering Research Centre for Fruits and Vegetables Processing, Ministry of Education, China Agricultural University, Beijing, China
| | - Yao Mou
- College of Food Science and Nutritional Engineering, National Engineering Research Centre for Fruits and Vegetables Processing, Key Laboratory of Fruits and Vegetables Processing, Ministry of Agriculture, Engineering Research Centre for Fruits and Vegetables Processing, Ministry of Education, China Agricultural University, Beijing, China
| | - Fang Chen
- College of Food Science and Nutritional Engineering, National Engineering Research Centre for Fruits and Vegetables Processing, Key Laboratory of Fruits and Vegetables Processing, Ministry of Agriculture, Engineering Research Centre for Fruits and Vegetables Processing, Ministry of Education, China Agricultural University, Beijing, China
| | - Xiaosong Hu
- College of Food Science and Nutritional Engineering, National Engineering Research Centre for Fruits and Vegetables Processing, Key Laboratory of Fruits and Vegetables Processing, Ministry of Agriculture, Engineering Research Centre for Fruits and Vegetables Processing, Ministry of Education, China Agricultural University, Beijing, China
| | - Junfu Ji
- College of Food Science and Nutritional Engineering, National Engineering Research Centre for Fruits and Vegetables Processing, Key Laboratory of Fruits and Vegetables Processing, Ministry of Agriculture, Engineering Research Centre for Fruits and Vegetables Processing, Ministry of Education, China Agricultural University, Beijing, China
| | - Lingjun Ma
- College of Food Science and Nutritional Engineering, National Engineering Research Centre for Fruits and Vegetables Processing, Key Laboratory of Fruits and Vegetables Processing, Ministry of Agriculture, Engineering Research Centre for Fruits and Vegetables Processing, Ministry of Education, China Agricultural University, Beijing, China
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3
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Aihara Y, Maeda B, Goto K, Takahashi K, Nomoto M, Toh S, Ye W, Toda Y, Uchida M, Asai E, Tada Y, Itami K, Sato A, Murakami K, Kinoshita T. Identification and improvement of isothiocyanate-based inhibitors on stomatal opening to act as drought tolerance-conferring agrochemicals. Nat Commun 2023; 14:2665. [PMID: 37188667 DOI: 10.1038/s41467-023-38102-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 04/16/2023] [Indexed: 05/17/2023] Open
Abstract
Stomatal pores in the plant epidermis open and close to regulate gas exchange between leaves and the atmosphere. Upon light stimulation, the plasma membrane (PM) H+-ATPase is phosphorylated and activated via an intracellular signal transduction pathway in stomatal guard cells, providing a primary driving force for the opening movement. To uncover and manipulate this stomatal opening pathway, we screened a chemical library and identified benzyl isothiocyanate (BITC), a Brassicales-specific metabolite, as a potent stomatal-opening inhibitor that suppresses PM H+-ATPase phosphorylation. We further developed BITC derivatives with multiple isothiocyanate groups (multi-ITCs), which demonstrate inhibitory activity on stomatal opening up to 66 times stronger, as well as a longer duration of the effect and negligible toxicity. The multi-ITC treatment inhibits plant leaf wilting in both short (1.5 h) and long-term (24 h) periods. Our research elucidates the biological function of BITC and its use as an agrochemical that confers drought tolerance on plants by suppressing stomatal opening.
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Affiliation(s)
- Yusuke Aihara
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Chikusa, Nagoya, 464-8602, Japan
- JST PRESTO, 7 Gobancho, Chiyoda, Tokyo, 102-0076, Japan
| | - Bumpei Maeda
- Department of Chemistry, School of Science, Kwansei Gakuin University, Sanda, Hyogo, 669-1337, Japan
| | - Kanna Goto
- Department of Chemistry, School of Science, Kwansei Gakuin University, Sanda, Hyogo, 669-1337, Japan
| | - Koji Takahashi
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Chikusa, Nagoya, 464-8602, Japan
- Graduate School of Science, Nagoya University, Chikusa, Nagoya, 464-8602, Japan
| | - Mika Nomoto
- JST PRESTO, 7 Gobancho, Chiyoda, Tokyo, 102-0076, Japan
- Graduate School of Science, Nagoya University, Chikusa, Nagoya, 464-8602, Japan
- Center for Gene Research, Nagoya University, Chikusa, Nagoya, 464-8602, Japan
| | - Shigeo Toh
- Graduate School of Science, Nagoya University, Chikusa, Nagoya, 464-8602, Japan
- Department of Environmental Bioscience, Meijo University, Nagoya, Japan
| | - Wenxiu Ye
- Graduate School of Science, Nagoya University, Chikusa, Nagoya, 464-8602, Japan
- Peking University Institute of Advanced Agricultural Sciences, Shandong Laboratory of Advanced Agriculture Sciences in Weifang, 261325, Weifang, China
| | - Yosuke Toda
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Chikusa, Nagoya, 464-8602, Japan
- Phytometrics Co., Ltd., Hamamatsu, Shizuoka, 435-0036, Japan
| | - Mami Uchida
- Graduate School of Science, Nagoya University, Chikusa, Nagoya, 464-8602, Japan
| | - Eri Asai
- Graduate School of Science, Nagoya University, Chikusa, Nagoya, 464-8602, Japan
| | - Yasuomi Tada
- Graduate School of Science, Nagoya University, Chikusa, Nagoya, 464-8602, Japan
- Center for Gene Research, Nagoya University, Chikusa, Nagoya, 464-8602, Japan
| | - Kenichiro Itami
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Chikusa, Nagoya, 464-8602, Japan
- Graduate School of Science, Nagoya University, Chikusa, Nagoya, 464-8602, Japan
| | - Ayato Sato
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Chikusa, Nagoya, 464-8602, Japan
| | - Kei Murakami
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Chikusa, Nagoya, 464-8602, Japan.
- JST PRESTO, 7 Gobancho, Chiyoda, Tokyo, 102-0076, Japan.
- Department of Chemistry, School of Science, Kwansei Gakuin University, Sanda, Hyogo, 669-1337, Japan.
| | - Toshinori Kinoshita
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Chikusa, Nagoya, 464-8602, Japan.
- Graduate School of Science, Nagoya University, Chikusa, Nagoya, 464-8602, Japan.
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4
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Direct couplings of secondary alcohols with primary alkenyl alcohols to α-alkylated ketones via a tandem transfer hydrogenation/hydrogen autotransfer process catalyzed by a metal-ligand bifunctional iridium catalyst. J Catal 2022. [DOI: 10.1016/j.jcat.2022.06.029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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5
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Liu XF, Wang Q, Zheng JF, Chai ZH, Dai F, Jin XJ, Zhou B. Developing dietary curcumin mono-carbonyl piperidinone analogs as Nrf2-dependent cytoprotectors against oxidative damage: Structure-activity relationship and mechanisms. Free Radic Biol Med 2022; 186:66-75. [PMID: 35550920 DOI: 10.1016/j.freeradbiomed.2022.05.009] [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: 03/16/2022] [Revised: 04/20/2022] [Accepted: 05/05/2022] [Indexed: 12/15/2022]
Abstract
Developing nuclear factor erythroid-2 related factor 2 (Nrf2)-dependent cytoprotectors against oxidative damage is of concern because they can effectively reduce the risk of oxidative stress-related diseases, such as cancer and inflammation. This work was aimed to develop more active Nrf2-dependent cytoprotectors than curcumin, a well-known dietary Nrf2 activator and cancer chemopreventive agent. Herein we designed a panel of curcumin-inspired mono-carbonyl piperidinone analogs differentiated by placing distinct electron-withdrawing and electron-donating groups on its two aromatic rings in the ortho, meta, or para position to the linker of α, β-unsaturated piperidinone. Among these, the ortho-fluorine-substituted CN-2F surfaced as a promising lead molecule, which was significantly superior to the parent curcumin in protecting HepG2 cells from oxidative damage induced by tert-butyl hydroperoxide. Mechanically, by virtue of its Michael receptor units and ortho-substituted mode, CN-2F activated Nrf2 signaling by covalently modifying Cys-151 and Cys-288 residues at Keap1, promoting phosphorylation of JNK, ERK and p38, as well as inhibiting Nrf2 degradation. This work reveals the structural determinants and the activity mechanisms of CN-2F as an Nrf2-dependent cytoprotector, and gives useful information on how to design curcumin-inspired Nrf2 activators and cytoprotectors.
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Affiliation(s)
- Xue-Feng Liu
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, 222 Tianshui Street S., Lanzhou, Gansu, 730000, China; School of Pharmacy, Lanzhou University, 222 Tianshui Street S., Lanzhou, Gansu, 730000, China; College of Pharmacy, Gansu University of Traditional Chinese Medicine, 35 Dingxi East Road, Gansu, 730000, China
| | - Qi Wang
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, 222 Tianshui Street S., Lanzhou, Gansu, 730000, China
| | - Jia-Fang Zheng
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, 222 Tianshui Street S., Lanzhou, Gansu, 730000, China
| | - Zuo-Hu Chai
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, 222 Tianshui Street S., Lanzhou, Gansu, 730000, China
| | - Fang Dai
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, 222 Tianshui Street S., Lanzhou, Gansu, 730000, China.
| | - Xiao-Jie Jin
- College of Pharmacy, Gansu University of Traditional Chinese Medicine, 35 Dingxi East Road, Gansu, 730000, China.
| | - Bo Zhou
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, 222 Tianshui Street S., Lanzhou, Gansu, 730000, China.
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6
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Abstract
The use of an acetylene (ethynyl) group in medicinal chemistry coincides with the launch of the Journal of Medicinal Chemistry in 1959. Since then, the acetylene group has been broadly exploited in drug discovery and development. As a result, it has become recognized as a privileged structural feature for targeting a wide range of therapeutic target proteins, including MAO, tyrosine kinases, BACE1, steroid receptors, mGlu5 receptors, FFA1/GPR40, and HIV-1 RT. Furthermore, a terminal alkyne functionality is frequently introduced in chemical biology probes as a click handle to identify molecular targets and to assess target engagement. This Perspective is divided into three parts encompassing: (1) the physicochemical properties of the ethynyl group, (2) the advantages and disadvantages of the ethynyl group in medicinal chemistry, and (3) the impact of the ethynyl group on chemical biology approaches.
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Affiliation(s)
- Tanaji T Talele
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, Queens, New York 11439, United States
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7
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Abstract
Targeted covalent modification is assuming consolidated importance in drug discovery. In this context, the electrophilic tuning of redox-dependent cell signaling is attracting major interest, as it opens prospect for treating numerous pathologic conditions. Herein, we discuss the rationale and the issues of electrophile-based approaches, focusing on the transcriptional Nrf2-Keap1 pathway as a test case. We also highlight relevant medicinal chemistry strategies researchers have devised to meet the ambitious goal, dwelling on the investigational and therapeutic potential of modulating redox-signaling networks through regulatory cysteine switches.
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8
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Nrf2 as regulator of innate immunity: A molecular Swiss army knife! Biotechnol Adv 2018; 36:358-370. [DOI: 10.1016/j.biotechadv.2017.12.012] [Citation(s) in RCA: 87] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Revised: 12/16/2017] [Accepted: 12/19/2017] [Indexed: 12/12/2022]
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9
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Wu B, Yang S, Sun H, Sun T, Ji F, Wang Y, Xu L, Zhou D. Keap1 Inhibits Metastatic Properties of NSCLC Cells by Stabilizing Architectures of F-Actin and Focal Adhesions. Mol Cancer Res 2018; 16:508-516. [PMID: 29330291 DOI: 10.1158/1541-7786.mcr-17-0544] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Revised: 11/12/2017] [Accepted: 12/07/2017] [Indexed: 11/16/2022]
Abstract
Low expression of the tumor suppressor Kelch-like ECH-associated protein 1 (KEAP1) in non-small cell lung cancer (NSCLC) often results in higher malignant biological behavior and poor prognosis; however, the underlying mechanism remains unclear. The present study demonstrates that overexpression of Keap1 significantly suppresses migration and invasion of three different lung cancer cells (A549, H460, and H1299). Highly expressed Keap1, compared with the control, promotes formation of multiple stress fibers with larger mature focal adhesion complexes in the cytoplasm where only fine focal adhesions were observed in the membrane under control conditions. RhoA activity significantly increased when Keap1 was overexpressed, whereas Myosin 9b expression was reduced but could be rescued by proteasome inhibition. Noticeably, mouse tumor xenografts with Keap1 overexpression were smaller in size and less metastatic relative to the control group. Taken together, these results demonstrate that Keap1 stabilizes F-actin cytoskeleton structures and inhibits focal adhesion turnover, thereby restraining the migration and invasion of NSCLC. Therefore, increasing Keap1 or targeting its downstream molecules might provide potential therapeutic benefits for the treatment of patients with NSCLC.Implications: This study provides mechanistic insight on the metastatic process in NSCLC and suggests that Keap1 and its downstream molecules may be valuable drug targets for NSCLC patients. Mol Cancer Res; 16(3); 508-16. ©2018 AACR.
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Affiliation(s)
- Bo Wu
- Department of Histology and Embryology, School of Basic Medical Sciences, Capital Medical University, Beijing, P. R. China
- Beijing Key Laboratory of Cancer Invasion and Metastasis Research, Beijing, P. R. China
- Cancer Institute of Capital Medical University, Beijing, P. R. China
| | - Shu Yang
- Department of Histology and Embryology, School of Basic Medical Sciences, Capital Medical University, Beijing, P. R. China
- Beijing Key Laboratory of Cancer Invasion and Metastasis Research, Beijing, P. R. China
- Cancer Institute of Capital Medical University, Beijing, P. R. China
| | - Haimei Sun
- Department of Histology and Embryology, School of Basic Medical Sciences, Capital Medical University, Beijing, P. R. China
- Beijing Key Laboratory of Cancer Invasion and Metastasis Research, Beijing, P. R. China
- Cancer Institute of Capital Medical University, Beijing, P. R. China
| | - Tingyi Sun
- Department of Histology and Embryology, School of Basic Medical Sciences, Capital Medical University, Beijing, P. R. China
- Beijing Key Laboratory of Cancer Invasion and Metastasis Research, Beijing, P. R. China
- Cancer Institute of Capital Medical University, Beijing, P. R. China
| | - Fengqing Ji
- Department of Histology and Embryology, School of Basic Medical Sciences, Capital Medical University, Beijing, P. R. China
- Beijing Key Laboratory of Cancer Invasion and Metastasis Research, Beijing, P. R. China
- Cancer Institute of Capital Medical University, Beijing, P. R. China
| | - Yurong Wang
- Department of Histology and Embryology, School of Basic Medical Sciences, Capital Medical University, Beijing, P. R. China
| | - Lie Xu
- Department of Histology and Embryology, School of Basic Medical Sciences, Capital Medical University, Beijing, P. R. China
| | - Deshan Zhou
- Department of Histology and Embryology, School of Basic Medical Sciences, Capital Medical University, Beijing, P. R. China.
- Beijing Key Laboratory of Cancer Invasion and Metastasis Research, Beijing, P. R. China
- Cancer Institute of Capital Medical University, Beijing, P. R. China
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10
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Cao M, Wang H, Guo L, Yang S, Liu C, Khor TO, Yu S, Kong AN. Dibenzoylmethane Protects Against CCl4-Induced Acute Liver Injury by Activating Nrf2 via JNK, AMPK, and Calcium Signaling. AAPS JOURNAL 2017; 19:1703-1714. [PMID: 28828752 DOI: 10.1208/s12248-017-0133-1] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Accepted: 08/13/2017] [Indexed: 12/13/2022]
Abstract
Oxidative stress is an important pathogenic factor in various hepatic diseases. Nuclear factor-erythroid 2-related factor-2 (Nrf2), which coordinates the expression of an array of antioxidant and detoxifying genes, has been proposed as a potential target for prevention and treatment of liver disease. Dibenzoylmethane (DBM) is a minor ingredient in licorice that activates Nrf2 and prevents various cancers and oxidative damage. In the present study, the mechanisms by which DBM activates Nrf2 signaling were delineated, and its protective effect against carbon tetrachloride (CCl4)-induced liver injury was examined. DBM potently induced the expression of HO-1 in cells and in the livers of mice, but this induction was diminished in Nrf2-deficient mice and cells. Overexpression of Nrf2 enhanced DBM-induced HO-1 expression, while overexpression of a dominant-negative fragment of Nrf2 inhibited this induction. DBM treatment resulted in dissociation from Keap1 and nuclear translocation of Nrf2. Moreover, DBM activated Akt/protein kinase B, mitogen-activated protein kinases, and AMP-activated protein kinase and increased intracellular calcium levels. Inhibition of JNK, AMPK, or intracellular calcium signaling significantly suppressed the induction of HO-1 expression by DBM. Finally, DBM treatment significantly inhibited CCl4-induced acute liver injury in wild-type but not in Nrf2-deficient mice. Taken together, our results revealed the mechanisms by which DBM activates Nrf2 and induces HO-1 expression, and provide molecular basis for the design and development of DBM and its derivatives for prevention or treatment of liver diseases by targeting Nrf2.
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Affiliation(s)
- Mingnan Cao
- State Key Laboratory of Natural and Biomimetic Drugs; Department of Chemical Biology, Peking University School of Pharmaceutical Sciences, 38 Xueyuan Road, Haidian District, Beijing, 100191, People's Republic of China.,Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Room 228 160 Frelinghuysen Road, Piscataway, NJ, 08854, USA
| | - Huixia Wang
- State Key Laboratory of Natural and Biomimetic Drugs; Department of Chemical Biology, Peking University School of Pharmaceutical Sciences, 38 Xueyuan Road, Haidian District, Beijing, 100191, People's Republic of China
| | - Limei Guo
- Department of Pathology, School of Basic Medical Sciences, Third Hospital, Peking University Health Science Center, Beijing, 100191, People's Republic of China
| | - Simin Yang
- State Key Laboratory of Natural and Biomimetic Drugs; Department of Chemical Biology, Peking University School of Pharmaceutical Sciences, 38 Xueyuan Road, Haidian District, Beijing, 100191, People's Republic of China
| | - Chun Liu
- State Key Laboratory of Natural and Biomimetic Drugs; Department of Chemical Biology, Peking University School of Pharmaceutical Sciences, 38 Xueyuan Road, Haidian District, Beijing, 100191, People's Republic of China
| | - Tin Oo Khor
- Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Room 228 160 Frelinghuysen Road, Piscataway, NJ, 08854, USA
| | - Siwang Yu
- State Key Laboratory of Natural and Biomimetic Drugs; Department of Chemical Biology, Peking University School of Pharmaceutical Sciences, 38 Xueyuan Road, Haidian District, Beijing, 100191, People's Republic of China.
| | - Ah-Ng Kong
- Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Room 228 160 Frelinghuysen Road, Piscataway, NJ, 08854, USA.
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11
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Simoni E, Serafini MM, Caporaso R, Marchetti C, Racchi M, Minarini A, Bartolini M, Lanni C, Rosini M. Targeting the Nrf2/Amyloid-Beta Liaison in Alzheimer's Disease: A Rational Approach. ACS Chem Neurosci 2017; 8:1618-1627. [PMID: 28421738 DOI: 10.1021/acschemneuro.7b00100] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Amyloid is a prominent feature of Alzheimer's disease (AD). Yet, a linear linkage between amyloid-β peptide (Aβ) and the disease onset and progression has recently been questioned. In this context, the crucial partnership between Aβ and Nrf2 pathways is acquiring paramount importance, offering prospects for deciphering the Aβ-centered disease network. Here, we report on a new class of antiaggregating agents rationally designed to simultaneously activate transcription-based antioxidant responses, whose lead 1 showed interesting properties in a preliminary investigation. Relying on the requirements of Aβ recognition, we identified the catechol derivative 12. In SH-SY5Y neuroblastoma cells, 12 combined remarkable free radical scavenger properties to the ability to trigger the Nrf2 pathway and induce the Nrf2-dependent defensive gene NQO1 by means of electrophilic activation of the transcriptional response. Moreover, 12 prevented the formation of cytotoxic stable oligomeric intermediates, being significantly more effective, and per se less toxic, than prototype 1. More importantly, as different chemical features were exploited to regulate Nrf2 and Aβ activities, the two pathways could be tuned independently. These findings point to compound 12 and its derivatives as promising tools for investigating the therapeutic potential of the Nrf2/Aβ cellular network, laying foundation for generating new drug leads to confront AD.
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Affiliation(s)
- Elena Simoni
- Department of Pharmacy
and Biotechnology, Alma Mater Studiorum-University of Bologna, Via Belmeloro
6, 40126 Bologna, Italy
| | - Melania M. Serafini
- Department of Drug Sciences (Pharmacology
Section), University of Pavia, V.le Taramelli 14, 27100 Pavia, Italy
- Scuola Universitaria Superiore IUSS Pavia, P.zza Vittoria, 15, 27100 Pavia, Italy
| | - Roberta Caporaso
- Department of Pharmacy
and Biotechnology, Alma Mater Studiorum-University of Bologna, Via Belmeloro
6, 40126 Bologna, Italy
| | - Chiara Marchetti
- Department of Pharmacy
and Biotechnology, Alma Mater Studiorum-University of Bologna, Via Belmeloro
6, 40126 Bologna, Italy
| | - Marco Racchi
- Department of Drug Sciences (Pharmacology
Section), University of Pavia, V.le Taramelli 14, 27100 Pavia, Italy
| | - Anna Minarini
- Department of Pharmacy
and Biotechnology, Alma Mater Studiorum-University of Bologna, Via Belmeloro
6, 40126 Bologna, Italy
| | - Manuela Bartolini
- Department of Pharmacy
and Biotechnology, Alma Mater Studiorum-University of Bologna, Via Belmeloro
6, 40126 Bologna, Italy
| | - Cristina Lanni
- Department of Drug Sciences (Pharmacology
Section), University of Pavia, V.le Taramelli 14, 27100 Pavia, Italy
| | - Michela Rosini
- Department of Pharmacy
and Biotechnology, Alma Mater Studiorum-University of Bologna, Via Belmeloro
6, 40126 Bologna, Italy
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12
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Design, synthesis, and evaluation of curcumin derivatives as Nrf2 activators and cytoprotectors against oxidative death. Eur J Med Chem 2017; 134:72-85. [DOI: 10.1016/j.ejmech.2017.04.008] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2017] [Revised: 04/01/2017] [Accepted: 04/04/2017] [Indexed: 12/30/2022]
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13
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Widen JC, Kempema AM, Villalta PW, Harki DA. Targeting NF-κB p65 with a Helenalin Inspired Bis-electrophile. ACS Chem Biol 2017; 12:102-113. [PMID: 28103680 DOI: 10.1021/acschembio.6b00751] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The canonical NF-κB signaling pathway is a mediator of the cellular inflammatory response and a target for developing therapeutics for multiple human diseases. The furthest downstream proteins in the pathway, the p50/p65 transcription factor heterodimer, have been recalcitrant toward small molecule inhibition despite the substantial number of compounds known to inhibit upstream proteins in the activation pathway. Given the roles of many of these upstream proteins in multiple biochemical pathways, targeting the p50/p65 heterodimer offers an opportunity for enhanced on-target specificity. Toward this end, the p65 protein presents two nondisulfide cysteines, Cys38 and Cys120, at its DNA-binding interface that are amenable to targeting by covalent molecules. The natural product helenalin, a sesquiterpene lactone, has been previously shown to target Cys38 on p65 and ablate its DNA-binding ability. Using helenalin as inspiration, simplified helenalin analogues were designed, synthesized, and shown to inhibit induced canonical NF-κB signaling in cell culture. Moreover, two simplified helenalin probes were proficient at forming covalent protein adducts, binding to Cys38 on recombinant p65, and targeting p65 in HeLa cells without engaging canonical NF-κB signaling proteins IκBα, p50, and IKKα/β. These studies further support that targeting the p65 transcription factor-DNA interface with covalent small molecule inhibitors is a viable approach toward regulating canonical NF-κB signaling.
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Affiliation(s)
- John C. Widen
- Department
of Medicinal Chemistry and ‡Masonic Cancer Center, University of Minnesota, 2231 Sixth Street SE, Minneapolis, Minnesota 55455, United States
| | - Aaron M. Kempema
- Department
of Medicinal Chemistry and ‡Masonic Cancer Center, University of Minnesota, 2231 Sixth Street SE, Minneapolis, Minnesota 55455, United States
| | - Peter W. Villalta
- Department
of Medicinal Chemistry and ‡Masonic Cancer Center, University of Minnesota, 2231 Sixth Street SE, Minneapolis, Minnesota 55455, United States
| | - Daniel A. Harki
- Department
of Medicinal Chemistry and ‡Masonic Cancer Center, University of Minnesota, 2231 Sixth Street SE, Minneapolis, Minnesota 55455, United States
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