1
|
Mathew J, Ding S, Kunz KA, Stacy EE, Butler JH, Haney RS, Merino EF, Butschek GJ, Rizopoulos Z, Totrov M, Cassera MB, Carlier PR. Malaria Box-Inspired Discovery of N-Aminoalkyl-β-carboline-3-carboxamides, a Novel Orally Active Class of Antimalarials. ACS Med Chem Lett 2022; 13:365-370. [PMID: 35300096 PMCID: PMC8919280 DOI: 10.1021/acsmedchemlett.1c00663] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 02/17/2022] [Indexed: 11/30/2022] Open
Abstract
Virtual ligand screening of a publicly available database of antimalarial hits using a pharmacophore derived from antimalarial MMV008138 identified TCMDC-140230, a tetrahydro-β-carboline amide, as worthy of exploration. All four stereoisomers of this structure were synthesized, but none potently inhibited growth of the malaria parasite Plasmodium falciparum. Interestingly, 7e, a minor byproduct of these syntheses, proved to be potent in vitro against P. falciparum and was orally efficacious (40 mg/kg) in an in vivo mouse model of malaria.
Collapse
Affiliation(s)
- Jopaul Mathew
- Department of Chemistry and Virginia Tech Center for Drug Discovery, Virginia Tech, 1040 Drillfield Drive, Blacksburg, Virginia 24061, United States
| | - Sha Ding
- Department of Chemistry and Virginia Tech Center for Drug Discovery, Virginia Tech, 1040 Drillfield Drive, Blacksburg, Virginia 24061, United States
| | - Kevin A Kunz
- Department of Chemistry and Virginia Tech Center for Drug Discovery, Virginia Tech, 1040 Drillfield Drive, Blacksburg, Virginia 24061, United States
| | - Emily E Stacy
- Department of Chemistry and Virginia Tech Center for Drug Discovery, Virginia Tech, 1040 Drillfield Drive, Blacksburg, Virginia 24061, United States
| | - Joshua H Butler
- Department of Biochemistry and Molecular Biology and Center for Tropical and Emerging Global Diseases, University of Georgia, 120 Green Street, Athens, Georgia 30602, United States
| | - Reagan S Haney
- Department of Biochemistry and Molecular Biology and Center for Tropical and Emerging Global Diseases, University of Georgia, 120 Green Street, Athens, Georgia 30602, United States
| | - Emilio F Merino
- Department of Biochemistry and Molecular Biology and Center for Tropical and Emerging Global Diseases, University of Georgia, 120 Green Street, Athens, Georgia 30602, United States
| | - Grant J Butschek
- Department of Biochemistry and Molecular Biology and Center for Tropical and Emerging Global Diseases, University of Georgia, 120 Green Street, Athens, Georgia 30602, United States
| | | | - Maxim Totrov
- Molsoft LLC, 11999 Sorrento Valley Road, San Diego, California 92121, United States
| | - Maria B Cassera
- Department of Biochemistry and Molecular Biology and Center for Tropical and Emerging Global Diseases, University of Georgia, 120 Green Street, Athens, Georgia 30602, United States
| | - Paul R Carlier
- Department of Chemistry and Virginia Tech Center for Drug Discovery, Virginia Tech, 1040 Drillfield Drive, Blacksburg, Virginia 24061, United States
| |
Collapse
|
2
|
Irie R, Miyako K, Matsunaga S, Sakai R, Oikawa M. Structure Revision of Protoaculeine B, a Post-translationally Modified N-Terminal Residue in the Peptide Toxin Aculeine B. JOURNAL OF NATURAL PRODUCTS 2021; 84:1203-1209. [PMID: 33787261 DOI: 10.1021/acs.jnatprod.0c01280] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The structure of protoaculeine B, the N-terminal residue of the marine peptide toxin aculeine B, is revised to the cis-1,3-disubstituted tetrahydro-β-carboline framework. We prepared two truncated model compounds that lack a long-chain polyamine using the one-step Pictet-Spengler reaction of tryptophan and compared their NMR, mass spectra, and chemical reactivity with those of the natural protoaculeine B. The synthetic models reproduced the profiles of the natural product well, which confirmed the appropriateness of the structure revision.
Collapse
Affiliation(s)
- Raku Irie
- Yokohama City University, Seto 22-2, Kanazawa-ku, Yokohama 236-0027, Japan
| | - Kei Miyako
- Faculty of Fisheries Sciences, Hokkaido University, Hakodate 041-8611, Japan
| | - Satoko Matsunaga
- National Institute of Technology, Hakodate College, Hakodate 042-8501, Japan
| | - Ryuichi Sakai
- Faculty of Fisheries Sciences, Hokkaido University, Hakodate 041-8611, Japan
| | - Masato Oikawa
- Yokohama City University, Seto 22-2, Kanazawa-ku, Yokohama 236-0027, Japan
| |
Collapse
|
3
|
Bertamino A, Ostacolo C, Medina A, Di Sarno V, Lauro G, Ciaglia T, Vestuto V, Pepe G, Basilicata MG, Musella S, Smaldone G, Cristiano C, Gonzalez-Rodriguez S, Fernandez-Carvajal A, Bifulco G, Campiglia P, Gomez-Monterrey I, Russo R. Exploration of TRPM8 Binding Sites by β-Carboline-Based Antagonists and Their In Vitro Characterization and In Vivo Analgesic Activities. J Med Chem 2020; 63:9672-9694. [PMID: 32787109 PMCID: PMC8009520 DOI: 10.1021/acs.jmedchem.0c00816] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
![]()
Transient
receptor potential melastatin 8 (TRPM8) ion channel represents
a valuable pharmacological option for several therapeutic areas. Here,
a series of conformationally restricted derivatives of the previously
described TRPM8 antagonist N,N′-dibenzyl
tryptophan 4 were prepared and characterized in vitro
by Ca2+-imaging and patch-clamp electrophysiology assays.
Molecular modeling studies led to identification of a broad and well-defined
interaction network of these derivatives inside the TRPM8 binding
site, underlying their antagonist activity. The (5R,11aS)-5-(4-chlorophenyl)-2-(4-fluorobenzyl)-5,6,11,11a-tetrahydro-1H-imidazo[1′,5′:1,6]pyrido[3,4-b]indole-1,3(2H)-dione (31a) emerged as a potent (IC50 = 4.10 ± 1.2 nM), selective,
and metabolically stable TRPM8 antagonist. In vivo, 31a showed significant target coverage in an icilin-induced WDS (at
11.5 mg/kg ip), an oxaliplatin-induced cold allodynia (at 10–30
μg sc), and CCI-induced thermal hyperalgesia (at 11.5 mg/kg
ip) mice models. These results confirm the tryptophan moiety as a
solid pharmacophore template for the design of highly potent modulators
of TRPM8-mediated activities.
Collapse
Affiliation(s)
- Alessia Bertamino
- Department of Pharmacy, University of Salerno, Via G. Paolo II 132, 84084 Fisciano, Salerno, Italy
| | - Carmine Ostacolo
- Department of Pharmacy, University Federico II of Naples, Via D. Montesano 49, 80131 Naples, Italy
| | - Alicia Medina
- IDiBE, Universitas Miguel Herna'ndez, Avda de la Universidad, 032020 Elche, Spain
| | - Veronica Di Sarno
- Department of Pharmacy, University of Salerno, Via G. Paolo II 132, 84084 Fisciano, Salerno, Italy
| | - Gianluigi Lauro
- Department of Pharmacy, University of Salerno, Via G. Paolo II 132, 84084 Fisciano, Salerno, Italy
| | - Tania Ciaglia
- Department of Pharmacy, University of Salerno, Via G. Paolo II 132, 84084 Fisciano, Salerno, Italy
| | - Vincenzo Vestuto
- Department of Pharmacy, University of Salerno, Via G. Paolo II 132, 84084 Fisciano, Salerno, Italy
| | - Giacomo Pepe
- Department of Pharmacy, University of Salerno, Via G. Paolo II 132, 84084 Fisciano, Salerno, Italy
| | | | - Simona Musella
- European Biomedical Research Institute (EBRIS), Via S. De Renzi 50, 84125 Salerno, Italy
| | - Gerardina Smaldone
- Department of Pharmacy, University of Salerno, Via G. Paolo II 132, 84084 Fisciano, Salerno, Italy
| | - Claudia Cristiano
- Department of Pharmacy, University Federico II of Naples, Via D. Montesano 49, 80131 Naples, Italy
| | | | | | - Giuseppe Bifulco
- Department of Pharmacy, University of Salerno, Via G. Paolo II 132, 84084 Fisciano, Salerno, Italy
| | - Pietro Campiglia
- Department of Pharmacy, University of Salerno, Via G. Paolo II 132, 84084 Fisciano, Salerno, Italy.,European Biomedical Research Institute (EBRIS), Via S. De Renzi 50, 84125 Salerno, Italy
| | - Isabel Gomez-Monterrey
- Department of Pharmacy, University Federico II of Naples, Via D. Montesano 49, 80131 Naples, Italy
| | - Roberto Russo
- Department of Pharmacy, University Federico II of Naples, Via D. Montesano 49, 80131 Naples, Italy
| |
Collapse
|
4
|
Kim YA, Latif A, Kong CS, Seo Y, Dalal SR, Cassera MB, Kingston DGI. Antimalarial diterpenoids from Vitex rotundifolia: Isolation, structure elucidation, and in vitro antiplasmodial activity. Bioorg Chem 2020; 100:103925. [PMID: 32438132 DOI: 10.1016/j.bioorg.2020.103925] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 05/04/2020] [Accepted: 05/07/2020] [Indexed: 10/24/2022]
Abstract
Vitex rotundifolia is an important medicinal plant frequently employed in traditional medicines for the treatment of various ailments. Although this plant species has been under exploration for its constituents by various research groups including our own group, no reports were found regarding the antimalarial potential of this plant or of its purified phytochemicals. Phytochemical investigation of this plant yielded three new (1-3) and five known (4-8) diterpenoids. These compounds were purified by modern chromatographic techniques and their structures were determined by advanced spectroscopic techniques such as nuclear magnetic resonance (NMR) and high-resolution mass spectrometry (HRMS). The in vitro antiplasmodial activities were encouraging, as compounds 2, 6, and 8 were found to have significant IC50 values of 1.2, 1.3 and 11.0 µM, respectively against Plasmodium falciparum.
Collapse
Affiliation(s)
- You Ah Kim
- Division of Marine Bioscience, Korea Maritime and Ocean University, Busan 49112, Republic of Korea
| | - Abdul Latif
- Department of Chemistry, University of Malakand, Chakdara Dir (L) 18800, Khyber Pakhtunkhwa, Pakistan
| | - Chang-Suk Kong
- Department of Food and Nutrition, College of Medical and Life Sciences, Silla University, Busan 46958, Republic of Korea
| | - Youngwan Seo
- Division of Marine Bioscience, Korea Maritime and Ocean University, Busan 49112, Republic of Korea.
| | - Seema R Dalal
- Department of Biochemistry and Virginia Tech Center for Drug Discovery, M/C 0308, Virginia Tech, Blacksburg, VA 24061, USA
| | - Maria B Cassera
- Department of Biochemistry and Molecular Biology, and Center for Tropical and Emerging Global Diseases (CTEGD), University of Georgia, Athens, GA 30602, USA
| | - David G I Kingston
- Department of Chemistry and the Virginia Tech Center for Drug Discovery, M/C 0212, Virginia Tech, Blacksburg, VA 24061, USA
| |
Collapse
|