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Watanabe A, Nagatomo M, Hirose A, Hikone Y, Kishimoto N, Miura S, Yasutake T, Abe T, Misumi S, Inoue M. Total Syntheses of Phorbol and 11 Tigliane Diterpenoids and Their Evaluation as HIV Latency-Reversing Agents. J Am Chem Soc 2024; 146:8746-8756. [PMID: 38486375 DOI: 10.1021/jacs.4c01589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/28/2024]
Abstract
Tigliane diterpenoids possess exceptionally complex structures comprising common 5/7/6/3-membered ABCD-rings and disparate oxygen functionalities. While tiglianes display a wide range of biological activities, compounds with HIV latency-reversing activity can eliminate viral reservoirs, thereby serving as promising leads for new anti-HIV agents. Herein, we report collective total syntheses of phorbol (13) and 11 tiglianes 14-24 with various acylation patterns and oxidation states, and their evaluation as HIV latency-reversing agents. The syntheses were strategically divided into five stages to increase the structural complexity. First, our previously established sequence enabled the expeditious preparation of ABC-tricycle 9 in 15 steps. Second, hydroxylation of 9 and ring-contractive D-ring formation furnished phorbol (13). Third, site-selective attachment of two acyl groups to 13 produced four phorbol diesters 14-17. Fourth, the oxygen functionalities were regio- and stereoselectively installed to yield five tiglianes 18-22. Fifth, further oxidation to the most densely oxygenated acerifolin A (23) and tigilanol tiglate (24) was realized through organizing a 3D shape of the B-ring. Assessment of the HIV latency-reversing activities of the 12 tiglianes revealed seven tiglianes (14-17 and 22-24) with 20- to 300-fold improved efficacy compared with prostratin (12), a representative latency-reversing agent. Therefore, the robust synthetic routes to a variety of tiglianes with promising activities devised in this study provide opportunities for advancing HIV eradication strategies.
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Affiliation(s)
- Ayumu Watanabe
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Masanori Nagatomo
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Akira Hirose
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Yuto Hikone
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Naoki Kishimoto
- Department of Environmental and Molecular Health Sciences, Faculty of Medical and Pharmaceutical Sciences, Kumamoto University, Kumamoto 862-0973, Japan
| | - Satoshi Miura
- Department of Environmental and Molecular Health Sciences, Faculty of Medical and Pharmaceutical Sciences, Kumamoto University, Kumamoto 862-0973, Japan
| | - Tae Yasutake
- Department of Environmental and Molecular Health Sciences, Faculty of Medical and Pharmaceutical Sciences, Kumamoto University, Kumamoto 862-0973, Japan
| | - Towa Abe
- Department of Environmental and Molecular Health Sciences, Faculty of Medical and Pharmaceutical Sciences, Kumamoto University, Kumamoto 862-0973, Japan
| | - Shogo Misumi
- Department of Environmental and Molecular Health Sciences, Faculty of Medical and Pharmaceutical Sciences, Kumamoto University, Kumamoto 862-0973, Japan
| | - Masayuki Inoue
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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Sever B, Otsuka M, Fujita M, Ciftci H. A Review of FDA-Approved Anti-HIV-1 Drugs, Anti-Gag Compounds, and Potential Strategies for HIV-1 Eradication. Int J Mol Sci 2024; 25:3659. [PMID: 38612471 PMCID: PMC11012182 DOI: 10.3390/ijms25073659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 03/22/2024] [Accepted: 03/22/2024] [Indexed: 04/14/2024] Open
Abstract
Acquired immunodeficiency syndrome (AIDS) is an enormous global health threat stemming from human immunodeficiency virus (HIV-1) infection. Up to now, the tremendous advances in combination antiretroviral therapy (cART) have shifted HIV-1 infection from a fatal illness into a manageable chronic disorder. However, the presence of latent reservoirs, the multifaceted nature of HIV-1, drug resistance, severe off-target effects, poor adherence, and high cost restrict the efficacy of current cART targeting the distinct stages of the virus life cycle. Therefore, there is an unmet need for the discovery of new therapeutics that not only bypass the limitations of the current therapy but also protect the body's health at the same time. The main goal for complete HIV-1 eradication is purging latently infected cells from patients' bodies. A potential strategy called "lock-in and apoptosis" targets the budding phase of the life cycle of the virus and leads to susceptibility to apoptosis of HIV-1 infected cells for the elimination of HIV-1 reservoirs and, ultimately, for complete eradication. The current work intends to present the main advantages and disadvantages of United States Food and Drug Administration (FDA)-approved anti-HIV-1 drugs as well as plausible strategies for the design and development of more anti-HIV-1 compounds with better potency, favorable pharmacokinetic profiles, and improved safety issues.
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Affiliation(s)
- Belgin Sever
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Anadolu University, Eskisehir 26470, Türkiye;
- Medicinal and Biological Chemistry Science Farm Joint Research Laboratory, Faculty of Life Sciences, Kumamoto University, Kumamoto 862-0973, Japan;
| | - Masami Otsuka
- Medicinal and Biological Chemistry Science Farm Joint Research Laboratory, Faculty of Life Sciences, Kumamoto University, Kumamoto 862-0973, Japan;
- Department of Drug Discovery, Science Farm Ltd., Kumamoto 862-0976, Japan
| | - Mikako Fujita
- Medicinal and Biological Chemistry Science Farm Joint Research Laboratory, Faculty of Life Sciences, Kumamoto University, Kumamoto 862-0973, Japan;
| | - Halilibrahim Ciftci
- Medicinal and Biological Chemistry Science Farm Joint Research Laboratory, Faculty of Life Sciences, Kumamoto University, Kumamoto 862-0973, Japan;
- Department of Drug Discovery, Science Farm Ltd., Kumamoto 862-0976, Japan
- Department of Bioengineering Sciences, Izmir Katip Celebi University, Izmir 35620, Türkiye
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3
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Cheng ZY, Ren JX, Xue XB, Wang M, Yu XQ, Lin B, Yao GD, Song SJ, Huang XX. Daphnane-type diterpenoids from Stellera chamaejasme L. and their inhibitory activity against hepatocellular carcinoma cells. PHYTOCHEMISTRY 2023:113725. [PMID: 37224912 DOI: 10.1016/j.phytochem.2023.113725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 05/12/2023] [Accepted: 05/15/2023] [Indexed: 05/26/2023]
Abstract
Daphnane-type diterpenoids, which are scarce in nature, exhibit potent growth-inhibitory activities against various cancer cells. To identify more daphnane-type diterpenoids, the phytochemical components in the root extracts of Stellera chamaejasme L. were analysed in this study using the Global Natural Products Social platform and the MolNetEnhancer tool. Three undescribed 1α-alkyldaphnane-type diterpenoids (1-3; named stelleradaphnanes A-C) and 15 known analogues were isolated and characterised. The structures of these compounds were determined using ultraviolet and nuclear magnetic resonance spectroscopy. The stereo configurations of the compounds were determined using electronic circular dichroism. Next, the growth-inhibitory activities of isolated compounds against HepG2 and Hep3B cells were examined. Compound 3 exhibited potent growth-inhibitory activities against HepG2 and Hep3B cells with half-maximal inhibitory concentration values of 9.73 and 15.97 μM, respectively. Morphological and staining analyses suggested that compound 3 induced apoptosis in HepG2 and Hep3B cells.
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Affiliation(s)
- Zhuo-Yang Cheng
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning, People's Republic of China; (b) Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning, People's Republic of China; (c) Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang, People's Republic of China; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, People's Republic of China; (e) School of Pharmaceutical Science, Shanxi Medical University, Taiyuan, 030000, People's Republic of China
| | - Jing-Xian Ren
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning, People's Republic of China; (b) Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning, People's Republic of China; (c) Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang, People's Republic of China; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, People's Republic of China
| | - Xiao-Bian Xue
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning, People's Republic of China; (b) Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning, People's Republic of China; (c) Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang, People's Republic of China; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, People's Republic of China
| | - Man Wang
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning, People's Republic of China; (b) Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning, People's Republic of China; (c) Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang, People's Republic of China; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, People's Republic of China
| | - Xiao-Qi Yu
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning, People's Republic of China; (b) Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning, People's Republic of China; (c) Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang, People's Republic of China; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, People's Republic of China
| | - Bin Lin
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang, 110016, People's Republic of China
| | - Guo-Dong Yao
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning, People's Republic of China; (b) Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning, People's Republic of China; (c) Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang, People's Republic of China; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, People's Republic of China
| | - Shao-Jiang Song
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning, People's Republic of China; (b) Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning, People's Republic of China; (c) Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang, People's Republic of China; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, People's Republic of China
| | - Xiao-Xiao Huang
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning, People's Republic of China; (b) Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning, People's Republic of China; (c) Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang, People's Republic of China; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, People's Republic of China.
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4
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Nzimande B, Makhwitine JP, Mkhwanazi NP, Ndlovu SI. Developments in Exploring Fungal Secondary Metabolites as Antiviral Compounds and Advances in HIV-1 Inhibitor Screening Assays. Viruses 2023; 15:v15051039. [PMID: 37243125 DOI: 10.3390/v15051039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 04/16/2023] [Accepted: 04/19/2023] [Indexed: 05/28/2023] Open
Abstract
The emergence of drug-resistant Human Immunodeficiency Virus-1 strains against anti-HIV therapies in the clinical pipeline, and the persistence of HIV in cellular reservoirs remains a significant concern. Therefore, there is a continuous need to discover and develop new, safer, and effective drugs targeting novel sites to combat HIV-1. The fungal species are gaining increasing attention as alternative sources of anti-HIV compounds or immunomodulators that can escape the current barriers to cure. Despite the potential of the fungal kingdom as a source for diverse chemistries that can yield novel HIV therapies, there are few comprehensive reports on the progress made thus far in the search for fungal species with the capacity to produce anti-HIV compounds. This review provides insights into the recent research developments on natural products produced by fungal species, particularly fungal endophytes exhibiting immunomodulatory or anti-HIV activities. In this study, we first explore currently existing therapies for various HIV-1 target sites. Then we assess the various activity assays developed for gauging antiviral activity production from microbial sources since they are crucial in the early screening phases for discovering novel anti-HIV compounds. Finally, we explore fungal secondary metabolites compounds that have been characterized at the structural level and demonstrate their potential as inhibitors of various HIV-1 target sites.
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Affiliation(s)
- Bruce Nzimande
- Discipline of Medical Microbiology, School of Laboratory Medicine and Medical Sciences, Medical School, University of KwaZulu-Natal, Durban 4000, South Africa
| | - John P Makhwitine
- Discipline of Medical Microbiology, School of Laboratory Medicine and Medical Sciences, Medical School, University of KwaZulu-Natal, Durban 4000, South Africa
| | - Nompumelelo P Mkhwanazi
- HIV Pathogenesis Programme, Doris Duke Medical Research Institute, School of Laboratory Medicine and Medical Sciences, University of KwaZulu-Natal, Durban 4000, South Africa
| | - Sizwe I Ndlovu
- Department of Biotechnology and Food Technology, Doornfontein Campus, University of Johannesburg, Johannesburg 2028, South Africa
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5
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Tembeni B, Sciorillo A, Invernizzi L, Klimkait T, Urda L, Moyo P, Naidoo-Maharaj D, Levitties N, Gyampoh K, Zu G, Yuan Z, Mounzer K, Nkabinde S, Nkabinde M, Gqaleni N, Tietjen I, Montaner LJ, Maharaj V. HPLC-Based Purification and Isolation of Potent Anti-HIV and Latency Reversing Daphnane Diterpenes from the Medicinal Plant Gnidia sericocephala ( Thymelaeaceae). Viruses 2022; 14:1437. [PMID: 35891417 PMCID: PMC9318819 DOI: 10.3390/v14071437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 06/21/2022] [Accepted: 06/24/2022] [Indexed: 11/17/2022] Open
Abstract
Despite the success of combination antiretroviral therapy (cART), HIV persists in low- and middle-income countries (LMIC) due to emerging drug resistance and insufficient drug accessibility. Furthermore, cART does not target latently-infected CD4+ T cells, which represent a major barrier to HIV eradication. The “shock and kill” therapeutic approach aims to reactivate provirus expression in latently-infected cells in the presence of cART and target virus-expressing cells for elimination. An attractive therapeutic prototype in LMICs would therefore be capable of simultaneously inhibiting viral replication and inducing latency reversal. Here we report that Gnidia sericocephala, which is used by traditional health practitioners in South Africa for HIV/AIDS management to supplement cART, contains at least four daphnane-type compounds (yuanhuacine A (1), yuanhuacine as part of a mixture (2), yuanhuajine (3), and gniditrin (4)) that inhibit viral replication and/or reverse HIV latency. For example, 1 and 2 inhibit HIV replication in peripheral blood mononuclear cells (PBMC) by >80% at 0.08 µg/mL, while 1 further inhibits a subtype C virus in PBMC with a half-maximal effective concentration (EC50) of 0.03 µM without cytotoxicity. Both 1 and 2 also reverse HIV latency in vitro consistent with protein kinase C activation but at 16.7-fold lower concentrations than the control prostratin. Both 1 and 2 also reverse latency in primary CD4+ T cells from cART-suppressed donors with HIV similar to prostratin but at 6.7-fold lower concentrations. These results highlight G. sericocephala and components 1 and 2 as anti-HIV agents for improving cART efficacy and supporting HIV cure efforts in resource-limited regions.
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Affiliation(s)
- Babalwa Tembeni
- Department of Chemistry, University of Pretoria, Pretoria 0028, South Africa; (B.T.); (L.I.); (P.M.); (D.N.-M.)
| | - Amanda Sciorillo
- The Wistar Institute, Philadelphia, PA 19104, USA; (A.S.); (N.L.); (K.G.); (G.Z.); (Z.Y.); (I.T.)
| | - Luke Invernizzi
- Department of Chemistry, University of Pretoria, Pretoria 0028, South Africa; (B.T.); (L.I.); (P.M.); (D.N.-M.)
| | - Thomas Klimkait
- Molecular Virology, Department of Biomedicine, University of Basel, 4031 Basel, Switzerland; (T.K.); (L.U.)
| | - Lorena Urda
- Molecular Virology, Department of Biomedicine, University of Basel, 4031 Basel, Switzerland; (T.K.); (L.U.)
| | - Phanankosi Moyo
- Department of Chemistry, University of Pretoria, Pretoria 0028, South Africa; (B.T.); (L.I.); (P.M.); (D.N.-M.)
| | - Dashnie Naidoo-Maharaj
- Department of Chemistry, University of Pretoria, Pretoria 0028, South Africa; (B.T.); (L.I.); (P.M.); (D.N.-M.)
- Agricultural Research Council-Vegetables, Industrial and Medicinal Plants, Private Bag X293, Pretoria 0001, South Africa
| | - Nathan Levitties
- The Wistar Institute, Philadelphia, PA 19104, USA; (A.S.); (N.L.); (K.G.); (G.Z.); (Z.Y.); (I.T.)
| | - Kwasi Gyampoh
- The Wistar Institute, Philadelphia, PA 19104, USA; (A.S.); (N.L.); (K.G.); (G.Z.); (Z.Y.); (I.T.)
| | - Guorui Zu
- The Wistar Institute, Philadelphia, PA 19104, USA; (A.S.); (N.L.); (K.G.); (G.Z.); (Z.Y.); (I.T.)
| | - Zhe Yuan
- The Wistar Institute, Philadelphia, PA 19104, USA; (A.S.); (N.L.); (K.G.); (G.Z.); (Z.Y.); (I.T.)
| | - Karam Mounzer
- Jonathan Lax Immune Disorders Treatment Center, Philadelphia Fight Community Health Centers, Philadelphia, PA 19107, USA;
| | | | - Magugu Nkabinde
- Ungangezulu Indigenous Remedies, J Uitval, Wasbank 2920, South Africa; (S.N.); (M.N.)
| | - Nceba Gqaleni
- Africa Health Research Institute, Congella 4013, South Africa;
- Discipline of Traditional Medicine, University of KwaZulu-Natal, Durban 4001, South Africa
- Faculty of Health Sciences, Durban University of Technology, Durban 4001, South Africa
| | - Ian Tietjen
- The Wistar Institute, Philadelphia, PA 19104, USA; (A.S.); (N.L.); (K.G.); (G.Z.); (Z.Y.); (I.T.)
| | - Luis J. Montaner
- The Wistar Institute, Philadelphia, PA 19104, USA; (A.S.); (N.L.); (K.G.); (G.Z.); (Z.Y.); (I.T.)
| | - Vinesh Maharaj
- Department of Chemistry, University of Pretoria, Pretoria 0028, South Africa; (B.T.); (L.I.); (P.M.); (D.N.-M.)
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Wang M, Sciorillo A, Read S, Divsalar DN, Gyampoh K, Zu G, Yuan Z, Mounzer K, Williams DE, Montaner LJ, de Voogd N, Tietjen I, Andersen RJ. Ansellone J, a Potent in Vitro and ex Vivo HIV-1 Latency Reversal Agent Isolated from a Phorbas sp. Marine Sponge. JOURNAL OF NATURAL PRODUCTS 2022; 85:1274-1281. [PMID: 35522580 DOI: 10.1021/acs.jnatprod.1c01225] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Five new minor sesterterpenoids, ansellones H (4), I (5), J (6), and K (7) and phorone C (8), have been isolated from a Phorbas sp. marine sponge collected in British Columbia. Their structures have been elucidated by detailed analysis of NMR and MS data. Ansellone J (6) and phorone C (8) are potent in vitro HIV-1 latency reversal agents that are more potent than the reference compound and control protein kinase C activator prostratin (3). The most potent Phorbas sesterterpenoid, ansellone J (6), was evaluated for HIV latency reversal in a primary cell context using CD4+ T cells obtained directly from four combination antiretroviral therapy-suppressed donors with HIV. To a first approximation, ansellone J (6) induced HIV latency reversal at levels similar to prostratin (3) ex vivo, but at a 10-fold lower concentration.
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Affiliation(s)
- Meng Wang
- Departments of Chemistry and Earth Ocean & Atmospheric Sciences, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Amanda Sciorillo
- The Wistar Institute, Philadelphia, Pennsylvania 19104, United States
| | - Silven Read
- Faculty of Health Sciences, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada
| | - Donya Naz Divsalar
- Faculty of Health Sciences, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada
| | - Kwasi Gyampoh
- The Wistar Institute, Philadelphia, Pennsylvania 19104, United States
| | - Guorui Zu
- The Wistar Institute, Philadelphia, Pennsylvania 19104, United States
| | - Zhe Yuan
- The Wistar Institute, Philadelphia, Pennsylvania 19104, United States
| | - Karam Mounzer
- Jonathan Lax Immune Disorders Treatment Center, Philadelphia FIGHT Community Health Centers, Philadelphia, Pennsylvania 19107, United States
| | - David E Williams
- Departments of Chemistry and Earth Ocean & Atmospheric Sciences, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Luis J Montaner
- The Wistar Institute, Philadelphia, Pennsylvania 19104, United States
| | - Nicole de Voogd
- Naturalis Biodiversity Center, P.O. Box 9517, 2300 RA Leiden, The Netherlands
| | - Ian Tietjen
- The Wistar Institute, Philadelphia, Pennsylvania 19104, United States
- Faculty of Health Sciences, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada
| | - Raymond J Andersen
- Departments of Chemistry and Earth Ocean & Atmospheric Sciences, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
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Popović-Djordjević J, Quispe C, Giordo R, Kostić A, Katanić Stanković JS, Tsouh Fokou PV, Carbone K, Martorell M, Kumar M, Pintus G, Sharifi-Rad J, Docea AO, Calina D. Natural products and synthetic analogues against HIV: A perspective to develop new potential anti-HIV drugs. Eur J Med Chem 2022; 233:114217. [DOI: 10.1016/j.ejmech.2022.114217] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 02/13/2022] [Accepted: 02/20/2022] [Indexed: 12/22/2022]
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El-Desoky AHH, Eguchi K, Kishimoto N, Asano T, Kato H, Hitora Y, Kotani S, Nakamura T, Tsuchiya S, Kawahara T, Watanabe M, Wada M, Nakajima M, Watanabe T, Misumi S, Tsukamoto S. Isolation, Synthesis, and Structure-Activity Relationship Study on Daphnane and Tigliane Diterpenes as HIV Latency-Reversing Agents. J Med Chem 2022; 65:3460-3472. [PMID: 35113551 DOI: 10.1021/acs.jmedchem.1c01973] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Three new diterpenes, stellejasmins A (1) and B (2) and 12-O-benzoylphorbol-13-heptanoate (3), were isolated from the roots of Stellera chamaejasme L. The structures of 1-3 were elucidated by extensive NMR and mass spectroscopic analyses. Compounds 1 and 2 are the first derivatives containing a hydroxy group at C-2 in the family of daphnane and tigliane diterpenes. The presence of a chlorine atom in 1 is unique in the plant metabolite. Compound 3 has an odd-number acyl group, which is biosynthetically notable. Human immunodeficiency virus (HIV) LTR-driven transcription activity was tested with 1-3 and 17 known diterpenes isolated from S. chamaejasme L. and Wikstroemia retusa A.Gray. Among these, gnidimacrin (4), stelleralide A (5), and wikstroelide A (20) were highly potent, with EC50 values of 0.14, 0.33, and 0.39 nM, respectively. The structure-activity relationship (SAR) was investigated using 20 natural and eight synthetic diterpenes. This is the first SAR study on natural daphnane and tigliane diterpenes.
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Affiliation(s)
- Ahmed H H El-Desoky
- Department of Natural Medicines, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Kumamoto 862-0973, Japan.,Pharmaceutical Industries Research Division, Pharmacognosy Department, National Research Centre, 33 El Bohouth Street (Former El Tahrir Street), P.O. Box 12622, Dokki, Giza 12511, Egypt
| | - Keisuke Eguchi
- Department of Natural Medicines, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Kumamoto 862-0973, Japan
| | - Naoki Kishimoto
- Department of Environmental and Molecular Health Sciences, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Kumamoto 862-0973, Japan
| | - Toshifumi Asano
- Department of Organic Chemistry, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Kumamoto 862-0973, Japan
| | - Hikaru Kato
- Department of Natural Medicines, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Kumamoto 862-0973, Japan
| | - Yuki Hitora
- Department of Natural Medicines, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Kumamoto 862-0973, Japan
| | - Shunsuke Kotani
- Department of Organic Chemistry, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Kumamoto 862-0973, Japan.,Department of Instrumental Analysis, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Kumamoto 862-0973, Japan
| | - Teruya Nakamura
- Department of Structural Biology, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Kumamoto 862-0973, Japan
| | - Soken Tsuchiya
- Department of Pharmaceutical Biochemistry, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Kumamoto 862-0973, Japan
| | - Teppei Kawahara
- Department of Instrumental Analysis, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Kumamoto 862-0973, Japan
| | - Masato Watanabe
- Technical Division, Kumamoto University, 5-1 Oe-honmachi, Kumamoto 862-0973, Japan
| | - Mikiyo Wada
- Department of Instrumental Analysis, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Kumamoto 862-0973, Japan
| | - Makoto Nakajima
- Department of Organic Chemistry, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Kumamoto 862-0973, Japan
| | - Takashi Watanabe
- Department of Medicinal Botany, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Kumamoto 862-0973, Japan
| | - Shogo Misumi
- Department of Environmental and Molecular Health Sciences, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Kumamoto 862-0973, Japan
| | - Sachiko Tsukamoto
- Department of Natural Medicines, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Kumamoto 862-0973, Japan
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Maki J, Oshimura A, Tsukano C, Yanagita RC, Saito Y, Sakakibara Y, Irie K. AI and computational chemistry-accelerated development of an alotaketal analogue with conventional PKC selectivity. Chem Commun (Camb) 2022; 58:6693-6696. [DOI: 10.1039/d2cc01759h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The protein kinase C (PKC) family consists of ten isozymes and is a potential target for treating cancer, Alzheimer’s disease, and HIV infection. Since known natural PKC agonists have little...
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10
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Liu J, Ma L, Song C, Xing H, Cen S, Lin W. Anti-HIV Effects of Baculiferins Are Regulated by the Potential Target Protein DARS. ACS Chem Biol 2021; 16:1377-1389. [PMID: 34338505 DOI: 10.1021/acschembio.1c00148] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Baculiferins are a group of marine sponge-derived polycyclic alkaloids with anti-HIV (human immunodeficiency virus) activities. To identify additional baculiferin-based congeners for SAR analysis and to investigate the mode of action, a total of 18 new baculiferin-type derivatives were synthesized. The inhibitory activities of the congeners against the HIV-1 virus were evaluated in vitro, and the relevant SAR was discussed. Compound 18 exerted the most potent activity toward VSV-G-pseudotyped HIV-1 (IC50 of 3.44 μM) and HIV-1 strain SF33 (IC50 of 2.80 μM) in vitro. To identify the cellular targets, three photoaffinity baculiferin probes were simultaneously synthesized. Photoaffinity labeling experiments together with LC-MS/MS data identified aspartate-tRNA ligase (DARS) as a putative target protein of 18. The overexpression and knockdown of DARS in HEK293T cells provided additional data to demonstrate that DARS is a potential target protein in the regulation of HIV virus infection. The modes of antiviral baculiferins 13 and 18 binding to DARS were determined by a molecular docking simulation. Thus, baculiferin 18 is considered a promising lead as a new molecular target for the development of anti-HIV agents.
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Affiliation(s)
- Jianrong Liu
- State Key Laboratory of Natural and Biomimetic Drugs, Institute of Ocean Research, Ningbo Institute of Marine Medicine, Peking University, Beijing, People’s Republic of China
| | - Ling Ma
- Key Laboratory of Antiviral Drug Research, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People’s Republic of China
| | - Chang Song
- Division of Virology and Immunology National Center for AIDS/STD Control and Prevention (NCAIDS), Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
| | - Hui Xing
- Division of Virology and Immunology National Center for AIDS/STD Control and Prevention (NCAIDS), Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
| | - Shan Cen
- Key Laboratory of Antiviral Drug Research, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People’s Republic of China
| | - Wenhan Lin
- State Key Laboratory of Natural and Biomimetic Drugs, Institute of Ocean Research, Ningbo Institute of Marine Medicine, Peking University, Beijing, People’s Republic of China
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11
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Ji J, Zhuang Y, Wang H, Feng C, Zhao Y, Zhang X. M-CSF and prostratin induced Mregs promote immune tolerance in transplanted mice through Arg-1 pathway. Int Immunopharmacol 2021; 99:108014. [PMID: 34332340 DOI: 10.1016/j.intimp.2021.108014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 07/17/2021] [Accepted: 07/20/2021] [Indexed: 11/26/2022]
Abstract
OBJECTIVE Regulatory macrophages (Mregs) are a group of heterogeneous macrophages. These cells could induce immunosuppressive effects through the expression of immune regulatory molecules and cytokines. METHODS The differentiation of Mregs was induced by treating bone marrow cells with M-CSF and prostratin in vitro. The cell-phenotypes and immunosuppressive function were determined by flow cytometry. Rt-PCR was employed to assess the mechanisms of Mregs. Skin grafted mouse model was used for in vivo validation. RESULTS Mregs induced by M-CSF + prostratin had a strong inhibitory effect on T cell proliferation and cytokines production. The phenotype of induced bone marrow cells changed towards Mregs. These Mregs could induce the differentiation of Tregs in vivo. Arg-1 expression in these cells were significantly upregulated. Inhibition of arginase (Arg) or arginine supplement significantly reversed the immunosuppressive function. In mice skin-grafted models, adoptive transfer of these Mregs significantly prolonged allograft survival. In mice models, Arg-1 expression significantly elevated on skin grafts cells and Tregs increased in graft tissues. CONCLUSIONS We successfully developed a Mregs-inducing protocol with the combination of M-CSF and prostratin in vitro. M-CSF + prostratin induced Mregs prevented mice skin graft rejection through upregulating the expression Arg-1.
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Affiliation(s)
- Jiawei Ji
- Capital Medical University, Beijing, China; Department of Urology, Capital Medical University Beijing Chaoyang Hospital, Beijing, China
| | - Yuan Zhuang
- Department of Blood Transfusion, First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Haozhou Wang
- Department of Urology, Capital Medical University Beijing Chaoyang Hospital, Beijing, China
| | - Chang Feng
- Transplantation Biology Research Division, State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Yong Zhao
- Transplantation Biology Research Division, State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Xiaodong Zhang
- Department of Urology, Capital Medical University Beijing Chaoyang Hospital, Beijing, China.
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12
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Tsai YC, Nell RA, Buckendorf JE, Kúsz N, Mwangi PW, Berkecz R, Rédei D, Vasas A, Spivak AM, Hohmann J. Bioactive Compounds from Euphorbia usambarica Pax. with HIV-1 Latency Reversal Activity. Pharmaceuticals (Basel) 2021; 14:ph14070653. [PMID: 34358079 PMCID: PMC8308672 DOI: 10.3390/ph14070653] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 06/27/2021] [Accepted: 06/30/2021] [Indexed: 01/04/2023] Open
Abstract
Euphorbia usambarica is a traditional medicine used for gynecologic, endocrine, and urogenital illnesses in East Africa; however, its constituents and bioactivities have not been investigated. A variety of compounds isolated from Euphorbia species have been shown to have activity against latent HIV-1, the major source of HIV-1 persistence despite antiretroviral therapy. We performed bioactivity-guided isolation to identify 15 new diterpenoids (1–9, 14–17, 19, and 20) along with 16 known compounds from E. usambarica with HIV-1 latency reversal activity. Euphordraculoate C (1) exhibits a rare 6/6/3-fused ring system with a 2-methyl-2-cyclopentenone moiety. Usambariphanes A (2) and B (3) display an unusual lactone ring constructed between C-17 and C-2 in the jatrophane structure. 4β-Crotignoid K (14) revealed a 250-fold improvement in latency reversal activity compared to crotignoid K (13), identifying that configuration at the C-4 of tigliane diterpenoids is critical to HIV-1 latency reversal activity. The primary mechanism of the active diterpenoids 12–14 and 21 for the HIV-1 latency reversal activity was activation of PKC, while lignans 26 and 27 that did not increase CD69 expression, suggesting a non-PKC mechanism. Accordingly, natural constituents from E. usambarica have the potential to contribute to the development of HIV-1 eradication strategies.
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Affiliation(s)
- Yu-Chi Tsai
- Interdisciplinary Excellence Centre, Department of Pharmacognosy, University of Szeged, H-6720 Szeged, Hungary; (Y.-C.T.); (N.K.); (D.R.); (A.V.)
| | - Racheal A. Nell
- Department of Medicine, University of Utah School of Medicine, Salt Lake City, UT 84132, USA; (R.A.N.); (J.E.B.)
| | - Jonathan E. Buckendorf
- Department of Medicine, University of Utah School of Medicine, Salt Lake City, UT 84132, USA; (R.A.N.); (J.E.B.)
| | - Norbert Kúsz
- Interdisciplinary Excellence Centre, Department of Pharmacognosy, University of Szeged, H-6720 Szeged, Hungary; (Y.-C.T.); (N.K.); (D.R.); (A.V.)
| | - Peter Waweru Mwangi
- Department of Medical Physiology, School of Medicine, University of Nairobi, Nairobi P.O. Box 30197-00100, Kenya;
| | - Róbert Berkecz
- Department of Medical Chemistry, University of Szeged, H-6720 Szeged, Hungary;
| | - Dóra Rédei
- Interdisciplinary Excellence Centre, Department of Pharmacognosy, University of Szeged, H-6720 Szeged, Hungary; (Y.-C.T.); (N.K.); (D.R.); (A.V.)
| | - Andrea Vasas
- Interdisciplinary Excellence Centre, Department of Pharmacognosy, University of Szeged, H-6720 Szeged, Hungary; (Y.-C.T.); (N.K.); (D.R.); (A.V.)
| | - Adam M. Spivak
- Department of Medicine, University of Utah School of Medicine, Salt Lake City, UT 84132, USA; (R.A.N.); (J.E.B.)
- Correspondence: (A.M.S.); (J.H.)
| | - Judit Hohmann
- Interdisciplinary Excellence Centre, Department of Pharmacognosy, University of Szeged, H-6720 Szeged, Hungary; (Y.-C.T.); (N.K.); (D.R.); (A.V.)
- Interdisciplinary Centre of Natural Products, University of Szeged, H-6720 Szeged, Hungary
- Correspondence: (A.M.S.); (J.H.)
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13
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Musarra-Pizzo M, Pennisi R, Ben-Amor I, Mandalari G, Sciortino MT. Antiviral Activity Exerted by Natural Products against Human Viruses. Viruses 2021; 13:v13050828. [PMID: 34064347 PMCID: PMC8147851 DOI: 10.3390/v13050828] [Citation(s) in RCA: 64] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Accepted: 05/01/2021] [Indexed: 12/13/2022] Open
Abstract
Viral infections are responsible for several chronic and acute diseases in both humans and animals. Despite the incredible progress in human medicine, several viral diseases, such as acquired immunodeficiency syndrome, respiratory syndromes, and hepatitis, are still associated with high morbidity and mortality rates in humans. Natural products from plants or other organisms are a rich source of structurally novel chemical compounds including antivirals. Indeed, in traditional medicine, many pathological conditions have been treated using plant-derived medicines. Thus, the identification of novel alternative antiviral agents is of critical importance. In this review, we summarize novel phytochemicals with antiviral activity against human viruses and their potential application in treating or preventing viral disease.
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Affiliation(s)
- Maria Musarra-Pizzo
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale SS. Annunziata, 98168 Messina, Italy; (M.M.-P.); (R.P.); (I.B.-A.)
| | - Rosamaria Pennisi
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale SS. Annunziata, 98168 Messina, Italy; (M.M.-P.); (R.P.); (I.B.-A.)
- Shenzhen International Institute for Biomedical Research, 1301 Guanguang Rd. 3F Building 1-B, Silver Star Hi-Tech Park Longhua District, Shenzhen 518116, China
| | - Ichrak Ben-Amor
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale SS. Annunziata, 98168 Messina, Italy; (M.M.-P.); (R.P.); (I.B.-A.)
- Unit of Biotechnology and Pathologies, Higher Institute of Biotechnology of Sfax, University of Sfax, Sfax 3029, Tunisia
| | - Giuseppina Mandalari
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale SS. Annunziata, 98168 Messina, Italy; (M.M.-P.); (R.P.); (I.B.-A.)
- Correspondence: (G.M.); (M.T.S.); Tel.: +39-090-6767-5217 (G.M. & M.T.S.)
| | - Maria Teresa Sciortino
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale SS. Annunziata, 98168 Messina, Italy; (M.M.-P.); (R.P.); (I.B.-A.)
- Correspondence: (G.M.); (M.T.S.); Tel.: +39-090-6767-5217 (G.M. & M.T.S.)
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14
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Elgoud Said AA, Mahmoud BK, Attia EZ, Abdelmohsen UR, Fouad MA. Bioactive natural products from marine sponges belonging to family Hymedesmiidae. RSC Adv 2021; 11:16179-16191. [PMID: 35479127 PMCID: PMC9031984 DOI: 10.1039/d1ra00228g] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 03/26/2021] [Indexed: 12/23/2022] Open
Abstract
Natural products of marine origin exhibit extensive biological activities, and display a vital role in the exploration of new compounds for drug development. Marine sponges have been reported at the top with respect to the discovery of biologically active metabolites that have potential pharmaceutical applications. The family Hymedesmiidae belonging to the Demospongiae class includes ten accepted genera, of which four genera were explored for their bioactive metabolites, namely Phorbas, Hamigera, Hemimycale, and Kirkpatrickia. Genus Phorbas has received more attention due to the isolation of various classes of compounds with unique structures mainly diterpenes, alkaloids, sesterterpenes, and steroids that exhibited diverse biological activities including: antiviral, antimicrobial, and anti-inflammatory, whereas anticancer compounds predominated. This review focuses on the isolated secondary metabolites from family Hymedesmiidae with their biological potential and covers the literature from 1989 to 2020. Natural products of marine origin exhibit extensive biological activities, and display a vital role in the exploration of new compounds for drug development.![]()
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Affiliation(s)
- Asmaa Abo Elgoud Said
- Department of Pharmacognosy, Faculty of Pharmacy, Minia University 61519 Minia Egypt +2-86-2369075 +2-86-2347759
| | - Basma Khalaf Mahmoud
- Department of Pharmacognosy, Faculty of Pharmacy, Minia University 61519 Minia Egypt +2-86-2369075 +2-86-2347759
| | - Eman Zekry Attia
- Department of Pharmacognosy, Faculty of Pharmacy, Minia University 61519 Minia Egypt +2-86-2369075 +2-86-2347759
| | - Usama Ramadan Abdelmohsen
- Department of Pharmacognosy, Faculty of Pharmacy, Minia University 61519 Minia Egypt +2-86-2369075 +2-86-2347759.,Department of Pharmacognosy, Faculty of Pharmacy, Deraya University, Universities Zone 61111 New Minia City Egypt
| | - Mostafa Ahmed Fouad
- Department of Pharmacognosy, Faculty of Pharmacy, Minia University 61519 Minia Egypt +2-86-2369075 +2-86-2347759
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15
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Ntie-Kang F, Karaman Mayack B, Valente S, Battistelli C. Editorial: Natural Product Epigenetic Modulators and Inhibitors. Front Pharmacol 2021; 12:651395. [PMID: 33746763 PMCID: PMC7969797 DOI: 10.3389/fphar.2021.651395] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Accepted: 01/13/2021] [Indexed: 12/12/2022] Open
Affiliation(s)
- Fidele Ntie-Kang
- Molecular Simulations Laboratory, Department of Chemistry, University of Buea, Buea, Cameroon.,Institute of Pharmacy, Martin-Luther University of Halle-Wittenberg, Halle (Saale), Germany.,Institute of Botany, Technical University Dresden, Dresden, Germany
| | - Berin Karaman Mayack
- Department of Pharmaceutical Chemistry, Istanbul University Istanbul, Istanbul, Turkey
| | - Sergio Valente
- Department of Drug Chemistry and Technologies, Faculty of Pharmacy and Medicine, Sapienza University of Rome, Rome, Italy
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16
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Gonda A, Takada K, Yanagita RC, Dan S, Irie K. Effects of side chain length of 10-methyl-aplog-1, a simplified analog of debromoaplysiatoxin, on PKC binding, anti-proliferative, and pro-inflammatory activities. Biosci Biotechnol Biochem 2021; 85:168-180. [PMID: 33577665 DOI: 10.1093/bbb/zbaa024] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Accepted: 08/22/2020] [Indexed: 02/07/2023]
Abstract
10-Methyl-aplog-1 (1), a simplified analog of debromoaplysiatoxin, exhibits a high binding affinity for protein kinase C (PKC) isozymes and potent antiproliferative activity against several cancer cells with few adverse effects. A recent study has suggested that its phenol group in the side chain is involved in hydrogen bonding and CH/π interactions with the binding cleft-forming loops in the PKCδ-C1B domain. To clarify the effects of the side chain length on these interactions, four analogs of 1 with various lengths of side chains (2-5) were prepared. The maximal PKC binding affinity and antiproliferative activity were observed in 1. Remarkably, the introduction of a bromine atom into the phenol group of 2 increased not only these activities but also proinflammatory activity. These results indicated that 1 has the optimal side chain length as an anticancer seed. This conclusion was supported by docking simulations of 1-5 to the PKCδ-C1B domain.
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Affiliation(s)
- Atsuko Gonda
- Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| | - Koji Takada
- Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| | - Ryo C Yanagita
- Department of Applied Biological Science, Faculty of Agriculture, Kagawa University, Kagawa, Japan
| | - Shingo Dan
- Division of Molecular Pharmacology, Cancer Chemotherapy Center, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Kazuhiro Irie
- Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Kyoto, Japan
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17
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Xie Y, Huang W, Qin S, Fu S, Liu B. Catalytic radical cascade cyclization of alkene-tethered enones to fused bicyclic cyclopropanols. Org Chem Front 2021. [DOI: 10.1039/d1qo01312b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Fused bicyclic cyclopropanols were achieved via an unprecedented HAT-triggered radical cascade reaction of alkene-tethered enones in the presence of an iron catalyst.
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Affiliation(s)
- Ying Xie
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
- School of Chemistry and Environmental Engineering, Sichuan University of Science & Engineering, Zigong, 643000, China
| | - Wei Huang
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Song Qin
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Shaomin Fu
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Bo Liu
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
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18
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Flores-Giubi ME, Botubol-Ares JM, Durán-Peña MJ, Escobar-Montaño F, Zorrilla D, Sánchez-Márquez J, Muñoz E, Macías-Sánchez AJ, Hernández-Galán R. Bond reactivity indices approach analysis of the [2+2] cycloaddition of jatrophane skeleton diterpenoids from Euphorbia gaditana Coss to tetracyclic gaditanone. PHYTOCHEMISTRY 2020; 180:112519. [PMID: 33038551 DOI: 10.1016/j.phytochem.2020.112519] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 09/07/2020] [Accepted: 09/08/2020] [Indexed: 06/11/2023]
Abstract
The reaction mechanism of the intramolecular [2 + 2] cycloaddition from a jatrophane precursor to the gaditanane skeleton, an unprecedented 5/6/4/6-fused tetracyclic ring framework recently isolated from Euphorbia spp., was studied using the bond reactivity indices approach. Furthermore, six diterpenoids, including three undescribed jatrophanes isolated from E. gaditana Coss, were described. The structures of these compounds were deduced by a combination of 2D NMR spectroscopy and ECD data analysis.
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Affiliation(s)
- M Eugenia Flores-Giubi
- Departamento de Química Orgánica, Facultad de Ciencias, Campus Universitario Río San Pedro s/n, Universidad de Cádiz, 11510, Puerto Real, Cádiz, Spain; Departamento de Química Biológica, Facultad de Ciencias Químicas, Universidad Nacional de Asunción, San Lorenzo, Departamento Central, Paraguay
| | - Jose Manuel Botubol-Ares
- Departamento de Química Orgánica, Facultad de Ciencias, Campus Universitario Río San Pedro s/n, Universidad de Cádiz, 11510, Puerto Real, Cádiz, Spain
| | - María J Durán-Peña
- Departamento de Química Orgánica, Facultad de Ciencias, Campus Universitario Río San Pedro s/n, Universidad de Cádiz, 11510, Puerto Real, Cádiz, Spain
| | - Felipe Escobar-Montaño
- Departamento de Química Orgánica, Facultad de Ciencias, Campus Universitario Río San Pedro s/n, Universidad de Cádiz, 11510, Puerto Real, Cádiz, Spain
| | - David Zorrilla
- Departamento de Química Física, Facultad de Ciencias, Universidad de Cádiz, Campus Universitario Puerto Real s/n, 11510, Puerto Real, Cádiz, Spain
| | - Jesús Sánchez-Márquez
- Departamento de Química Física, Facultad de Ciencias, Universidad de Cádiz, Campus Universitario Puerto Real s/n, 11510, Puerto Real, Cádiz, Spain
| | - Eduardo Muñoz
- Department of Cell Biology, Physiology and Immunology, Instituto Maimónides de Investigación Biomédicas de Córdoba (IMIBIC), Reina Sofía University Hospital, University of Córdoba, C/ Maria Virgen y Madre s/n, 14004, Córdoba, Spain
| | - Antonio J Macías-Sánchez
- Departamento de Química Orgánica, Facultad de Ciencias, Campus Universitario Río San Pedro s/n, Universidad de Cádiz, 11510, Puerto Real, Cádiz, Spain
| | - Rosario Hernández-Galán
- Departamento de Química Orgánica, Facultad de Ciencias, Campus Universitario Río San Pedro s/n, Universidad de Cádiz, 11510, Puerto Real, Cádiz, Spain.
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19
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12-Deoxyphorbol Esters Induce Growth Arrest and Apoptosis in Human Lung Cancer A549 Cells Via Activation of PKC-δ/PKD/ERK Signaling Pathway. Int J Mol Sci 2020; 21:ijms21207579. [PMID: 33066446 PMCID: PMC7589005 DOI: 10.3390/ijms21207579] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 10/09/2020] [Accepted: 10/13/2020] [Indexed: 12/16/2022] Open
Abstract
Prostratin, a non-tumor promoting 12-deoxyphorbol ester, has been reported as a protein kinase C (PKC) activator and is shown to have anti-proliferative activity in certain cancer cell types. Here we show that GRC-2, a prostratin analogue isolated from Euphorbia grandicornis, is ten-fold more potent than prostratin for inhibiting the growth of human non-small cell lung cancer (NSCLC) A549 cells. Flow cytometry assay revealed that GRC-2 and prostratin inhibited cell cycle progression at the G2/M phase and induced apoptosis. The cytotoxic effect of GRC-2 and prostratin was accompanied by activation and nuclear translocation of PKC-δ and PKD as well as hyperactivation of extracellular signal-related kinase (ERK). Knockdown of either PKC-δ, PKD or ERK significantly protected A549 cancer cells from GRC-2- and prostratin-induced growth arrest as well as apoptosis. Taken together, our results have shown that prostratin and a more potent analogue GRC-2 reduce cell viability in NSCLC A549 cells, at least in part, through activation of the PKC-δ/PKD/ERK pathway, suggesting the potential of prostratin and GRC-2 as anticancer agents.
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20
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Divsalar DN, Simoben CV, Schonhofer C, Richard K, Sippl W, Ntie-Kang F, Tietjen I. Novel Histone Deacetylase Inhibitors and HIV-1 Latency-Reversing Agents Identified by Large-Scale Virtual Screening. Front Pharmacol 2020; 11:905. [PMID: 32625097 PMCID: PMC7311767 DOI: 10.3389/fphar.2020.00905] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Accepted: 06/03/2020] [Indexed: 12/16/2022] Open
Abstract
Current antiretroviral therapies used for HIV management do not target latent viral reservoirs in humans. The experimental “shock-and-kill” therapeutic approach involves use of latency-reversal agents (LRAs) that reactivate HIV expression in reservoir-containing cells, followed by infected cell elimination through viral or host immune cytopathic effects. Several LRAs that function as histone deacetylase (HDAC) inhibitors are reported to reverse HIV latency in cells and in clinical trials; however, none to date have consistently reduced viral reservoirs in humans, prompting a need to identify new LRAs. Toward this goal, we describe here a virtual screening (VS) approach which uses 14 reported HDAC inhibitors to probe PubChem and identifies 60 LRA candidates. We then show that four screening “hits” including (S)-N-Hydroxy-4-(3-methyl-2-phenylbutanamido)benzamide (compound 15), N-(4-Aminophenyl)heptanamide (16), N-[4-(Heptanoylamino)phenyl]heptanamide (17), and 4-(1,3-Dioxo-1H-benzo[de]isoquinolin-2(3H)-yl)-N-(2-hydroxyethyl)butanamide (18) inhibit HDAC activity and/or reverse HIV latency in vitro. This study demonstrates and supports that VS-based approaches can readily identify novel HDAC inhibitors and LRAs, which in turn may help toward inhibitor design and chemical optimization efforts for improved HIV shock-and-kill-based efforts.
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Affiliation(s)
- Donya Naz Divsalar
- Faculty of Health Sciences, Simon Fraser University, Burnaby, BC, Canada
| | - Conrad Veranso Simoben
- Department of Chemistry, University of Buea, Buea, Cameroon.,Instutite of Pharmacy, Martin-Luther University Halle-Wittenberg, Halle (Saale), Germany
| | - Cole Schonhofer
- Faculty of Health Sciences, Simon Fraser University, Burnaby, BC, Canada
| | - Khumoekae Richard
- Faculty of Health Sciences, Simon Fraser University, Burnaby, BC, Canada
| | - Wolfgang Sippl
- Instutite of Pharmacy, Martin-Luther University Halle-Wittenberg, Halle (Saale), Germany
| | - Fidele Ntie-Kang
- Department of Chemistry, University of Buea, Buea, Cameroon.,Instutite of Pharmacy, Martin-Luther University Halle-Wittenberg, Halle (Saale), Germany
| | - Ian Tietjen
- Faculty of Health Sciences, Simon Fraser University, Burnaby, BC, Canada.,The Wistar Institute, Philadelphia, PA, United States
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Kaur R, Sharma P, Gupta GK, Ntie-Kang F, Kumar D. Structure-Activity-Relationship and Mechanistic Insights for Anti-HIV Natural Products. Molecules 2020; 25:E2070. [PMID: 32365518 PMCID: PMC7249135 DOI: 10.3390/molecules25092070] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 04/17/2020] [Accepted: 04/22/2020] [Indexed: 12/26/2022] Open
Abstract
Acquired Immunodeficiency Syndrome (AIDS), which chiefly originatesfroma retrovirus named Human Immunodeficiency Virus (HIV), has impacted about 70 million people worldwide. Even though several advances have been made in the field of antiretroviral combination therapy, HIV is still responsible for a considerable number of deaths in Africa. The current antiretroviral therapies have achieved success in providing instant HIV suppression but with countless undesirable adverse effects. Presently, the biodiversity of the plant kingdom is being explored by several researchers for the discovery of potent anti-HIV drugs with different mechanisms of action. The primary challenge is to afford a treatment that is free from any sort of risk of drug resistance and serious side effects. Hence, there is a strong demand to evaluate drugs derived from plants as well as their derivatives. Several plants, such as Andrographis paniculata, Dioscorea bulbifera, Aegle marmelos, Wistaria floribunda, Lindera chunii, Xanthoceras sorbifolia and others have displayed significant anti-HIV activity. Here, weattempt to summarize the main results, which focus on the structures of most potent plant-based natural products having anti-HIV activity along with their mechanisms of action and IC50 values, structure-activity-relationships and important key findings.
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Affiliation(s)
- Ramandeep Kaur
- Sri Sai College of Pharmacy, Manawala, Amritsar 143001, India; (R.K.); (P.S.)
| | - Pooja Sharma
- Sri Sai College of Pharmacy, Manawala, Amritsar 143001, India; (R.K.); (P.S.)
- Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala 147002, India
| | - Girish K. Gupta
- Department of Pharmaceutical Chemistry, Sri Sai College of Pharmacy, Badhani, Pathankot 145001, India;
| | - Fidele Ntie-Kang
- Department of Chemistry, Faculty of Science, University of Buea, P.O. Box 63 Buea, Cameroon
- Institute for Pharmacy, Martin-Luther-Universität Halle-Wittenberg, Kurt-Mothes-Str. 3, 06120 Halle (Saale), Germany
- Institut für Botanik, Technische Universität Dresden, Zellescher Weg 20b, 01062 Dresden, Germany
| | - Dinesh Kumar
- Sri Sai College of Pharmacy, Manawala, Amritsar 143001, India; (R.K.); (P.S.)
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Flores-Giubi E, Geribaldi-Doldán N, Murillo-Carretero M, Castro C, Durán-Patrón R, Macías-Sánchez AJ, Hernández-Galán R. Lathyrane, Premyrsinane, and Related Diterpenes from Euphorbia boetica: Effect on in Vitro Neural Progenitor Cell Proliferation. JOURNAL OF NATURAL PRODUCTS 2019; 82:2517-2528. [PMID: 31507181 DOI: 10.1021/acs.jnatprod.9b00343] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Lathyrane-type diterpenes previously have been proven to promote proliferation of neural precursor cells (NPCs) by targeting and activating one or more protein kinase C (PKC) isozymes. Aiming to find new drug candidates with a lathyrane skeleton to modulate adult neurogenesis through PKC activation, a phytochemical study of a methanol extract of the aerial parts of Euphorbia boetica was carried out. Seven new diterpenes, representing the premyrsinane (1-3), myrsinane (4, 5), and cyclomyrsinane types (6, 7), along with three known diterpenes, belonging to the cyclomyrsinane (8) and lathyrane types (9, 10), were isolated. The chemical structures and relative configurations of the new compounds were determined by extensive NMR spectroscopic studies and comparison with known compounds. The absolute configurations for compounds 2, 3, 6, and 7 were proposed, based on a comparison of the experimental ECD spectra of compounds 2 and 7 with those of known related compounds. The activity of lathyrane compounds 9 and 10 as promoters of NPC proliferation was evaluated using a neurosphere assay. Both compounds increased the size of neurospheres in a dose-dependent manner when proliferation was stimulated by the epidermal growth factor and the basic fibroblast growth factor.
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Affiliation(s)
- Eugenia Flores-Giubi
- Departamento de Química Orgánica, Facultad de Ciencias, Campus Universitario Puerto Real s/n , Universidad de Cádiz , 11510 Puerto Real , Cádiz , Spain
- Departamento de Química Biológica, Facultad de Ciencias Químicas , Universidad Nacional de Asunción , San Lorenzo , Departamento Central, Paraguay
| | - Noelia Geribaldi-Doldán
- Área de Fisiología, Facultad de Medicina , Universidad de Cádiz, and Instituto de Investigación e Innovación Biomédica de Cádiz (INiBICA) , 11510 Puerto Real , Cádiz , Spain
| | - Maribel Murillo-Carretero
- Área de Fisiología, Facultad de Medicina , Universidad de Cádiz, and Instituto de Investigación e Innovación Biomédica de Cádiz (INiBICA) , 11510 Puerto Real , Cádiz , Spain
| | - Carmen Castro
- Área de Fisiología, Facultad de Medicina , Universidad de Cádiz, and Instituto de Investigación e Innovación Biomédica de Cádiz (INiBICA) , 11510 Puerto Real , Cádiz , Spain
| | - Rosa Durán-Patrón
- Departamento de Química Orgánica, Facultad de Ciencias, Campus Universitario Puerto Real s/n , Universidad de Cádiz , 11510 Puerto Real , Cádiz , Spain
| | - Antonio J Macías-Sánchez
- Departamento de Química Orgánica, Facultad de Ciencias, Campus Universitario Puerto Real s/n , Universidad de Cádiz , 11510 Puerto Real , Cádiz , Spain
- Instituto de Investigación en Biomoléculas (INBIO) , Universidad de Cádiz , 11510 Puerto Real , Cádiz , Spain
| | - Rosario Hernández-Galán
- Departamento de Química Orgánica, Facultad de Ciencias, Campus Universitario Puerto Real s/n , Universidad de Cádiz , 11510 Puerto Real , Cádiz , Spain
- Instituto de Investigación en Biomoléculas (INBIO) , Universidad de Cádiz , 11510 Puerto Real , Cádiz , Spain
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Liu Q, Cheng YY, Li W, Huang L, Asada Y, Hsieh MT, Morris-Natschke SL, Chen CH, Koike K, Lee KH. Synthesis and Structure-Activity Relationship Correlations of Gnidimacrin Derivatives as Potent HIV-1 Inhibitors and HIV Latency Reversing Agents. J Med Chem 2019; 62:6958-6971. [PMID: 31343875 PMCID: PMC7442216 DOI: 10.1021/acs.jmedchem.9b00339] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Currently, due to the HIV latency mechanism, the search continues for effective drugs to combat this issue and provide a cure for AIDS. Gnidimacrin activates latent HIV-1 replication and inhibits HIV-1 infection at picomolar concentrations. This natural diterpene was able to markedly reduce the latent HIV-1 DNA level and the frequency of latently infected cells. Therefore, gnidimacrin is an excellent lead compound, and its anti-HIV potential merits further investigation. Twenty-nine modified gnidimacrin derivatives were synthesized and evaluated in assays for HIV replication and latency activation to establish which molecular structures must be maintained and which can tolerate changes that may be needed for better pharmacological properties. The results indicated that hydroxyl substituents at C-5 and C-20 are essential, while derivatives modified at 3-OH with aromatic esters retain anti-HIV replication and latent activation activities. The half-lives of the potent GM derivatives are over 20 h, which implies that they are stable in the plasm even though they contain ester linkages. The established structure-activity relationship should be useful in the development of gnidimacrin or structurally related compounds as clinical trial candidates.
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Affiliation(s)
- Qingbo Liu
- Faculty of Pharmaceutical Sciences, Toho University, Miyama 2-2-1, Funabashi 274-8510, Chiba, Japan
- Key Laboratory of Structure-Based Drug Design and Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Yung-Yi Cheng
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina 27599, United States
- Chinese Medicine Research and Development Center, China Medical University and Hospital, Taichung 40402, Taiwan
| | - Wei Li
- Faculty of Pharmaceutical Sciences, Toho University, Miyama 2-2-1, Funabashi 274-8510, Chiba, Japan
| | - Li Huang
- Surgical Science, Department of Surgery, Duke University Medical Center, Durham, North Carolina 27710, United States
| | - Yoshihisa Asada
- Faculty of Pharmaceutical Sciences, Toho University, Miyama 2-2-1, Funabashi 274-8510, Chiba, Japan
| | - Min-Tsang Hsieh
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina 27599, United States
- Chinese Medicine Research and Development Center, China Medical University and Hospital, Taichung 40402, Taiwan
| | - Susan L. Morris-Natschke
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina 27599, United States
| | - Chin-Ho Chen
- Surgical Science, Department of Surgery, Duke University Medical Center, Durham, North Carolina 27710, United States
| | - Kazuo Koike
- Faculty of Pharmaceutical Sciences, Toho University, Miyama 2-2-1, Funabashi 274-8510, Chiba, Japan
| | - Kuo-Hsiung Lee
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina 27599, United States
- Chinese Medicine Research and Development Center, China Medical University and Hospital, Taichung 40402, Taiwan
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Chinsembu KC. Chemical diversity and activity profiles of HIV-1 reverse transcriptase inhibitors from plants. REVISTA BRASILEIRA DE FARMACOGNOSIA-BRAZILIAN JOURNAL OF PHARMACOGNOSY 2019. [DOI: 10.1016/j.bjp.2018.10.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Pereira F. Have marine natural product drug discovery efforts been productive and how can we improve their efficiency? Expert Opin Drug Discov 2019; 14:717-722. [PMID: 30982363 DOI: 10.1080/17460441.2019.1604675] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Florbela Pereira
- a LAQV and REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia , Universidade Nova de Lisboa , Caparica , Portugal
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Cat and Mouse: HIV Transcription in Latency, Immune Evasion and Cure/Remission Strategies. Viruses 2019; 11:v11030269. [PMID: 30889861 PMCID: PMC6466452 DOI: 10.3390/v11030269] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 03/04/2019] [Accepted: 03/13/2019] [Indexed: 12/13/2022] Open
Abstract
There is broad scientific and societal consensus that finding a cure for HIV infection must be pursued. The major barrier to achieving a cure for HIV/AIDS is the capacity of the HIV virus to avoid both immune surveillance and current antiretroviral therapy (ART) by rapidly establishing latently infected cell populations, termed latent reservoirs. Here, we provide an overview of the rapidly evolving field of HIV cure/remission research, highlighting recent progress and ongoing challenges in the understanding of HIV reservoirs, the role of HIV transcription in latency and immune evasion. We review the major approaches towards a cure that are currently being explored and further argue that small molecules that inhibit HIV transcription, and therefore uncouple HIV gene expression from signals sent by the host immune response, might be a particularly promising approach to attain a cure or remission. We emphasize that a better understanding of the game of "cat and mouse" between the host immune system and the HIV virus is a crucial knowledge gap to be filled in both cure and vaccine research.
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