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Ma Y, Zhu H, Jiang X, Zhou Z, Zhou Y, Tian Y, Tu L, Lu J, Niu Y, Du L, Si Z, Fang H, Liu H, Liu Y, Chen P. Synthesis and Biological Activity of 2-Chloro-8-methoxy-5-methyl-5 H-indolo [2,3- b] Quinoline for the Treatment of Colorectal Cancer by Modulating PI3K/AKT/mTOR Pathways. ACS OMEGA 2024; 9:30698-30707. [PMID: 39035959 PMCID: PMC11256334 DOI: 10.1021/acsomega.4c03101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 06/12/2024] [Accepted: 06/19/2024] [Indexed: 07/23/2024]
Abstract
Developing novel drugs from natural products has proven to be a very effective strategy. Neocryptolepine was isolated from Cryptolepis sanguinolenta, a traditional endemic African herb, which exerts a wide range of biological activities such as antimalaria, antibacterial, and antitumor. 2-Chloro-8-methoxy-5-methyl-5H-indolo [2,3-b] quinoline (compound 49) was synthesized, and its cytotoxicity was assessed on pancreatic cancer PANC-1 cells, colorectal cancer HCT116 cells, liver cancer SMMC-7721 cells, and gastric cancer AGS cells in vitro. The results of the in vitro assay showed that compound 49 exerted remarkable cytotoxicity on colorectal cancer HCT116 and Caco-2 cells. The cytotoxicity of compound 49 to colorectal cancer HCT116 cells was 17 times higher than that of neocryptolepine and to human normal intestinal epithelial HIEC cells was significantly reduced. Compound 49 exhibited significant cytotoxicity against the colorectal cancer HCT116 and Caco-2 cells, with IC50 of 0.35 and 0.54 μM, respectively. The mechanism of cytotoxicity of compound 49 to colorectal cancer HCT116 and Caco-2 cells was further investigated. The results showed that compound 49 could inhibit colony formation and cell migration. Moreover, compound 49 could arrest the cell cycle at the G2/M phase, promote the production of reactive oxygen species, reduce mitochondrial membrane potential, and induce apoptosis. The results of Western blot indicated that compound 49 showed cytotoxicity on HCT116 and Caco-2 cells by modulating the PI3K/AKT/mTOR signaling pathway. In conclusion, these results suggested that compound 49 may be a potentially promising lead compound for the treatment of colorectal cancer.
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Affiliation(s)
- Yunhao Ma
- School
of Pharmacy, Lanzhou University, No. 199 Donggang West Road, Lanzhou, Gansu 730000, China
| | - Hongmei Zhu
- School
of Pharmacy, Lanzhou University, No. 199 Donggang West Road, Lanzhou, Gansu 730000, China
| | - Xinrong Jiang
- School
of Pharmacy, Lanzhou University, No. 199 Donggang West Road, Lanzhou, Gansu 730000, China
| | - Zhongkun Zhou
- School
of Pharmacy, Lanzhou University, No. 199 Donggang West Road, Lanzhou, Gansu 730000, China
| | - Yong Zhou
- School
of Pharmacy, Lanzhou University, No. 199 Donggang West Road, Lanzhou, Gansu 730000, China
| | - Yanan Tian
- Faculty
of Applied Sciences, Macao Polytechnic University, R. de Luís Gonzaga Gomes, Macao, Macau 999078, China
| | - Lixue Tu
- School
of Pharmacy, Lanzhou University, No. 199 Donggang West Road, Lanzhou, Gansu 730000, China
| | - Juan Lu
- School
of Pharmacy, Lanzhou University, No. 199 Donggang West Road, Lanzhou, Gansu 730000, China
| | - Yuqing Niu
- School
of Pharmacy, Lanzhou University, No. 199 Donggang West Road, Lanzhou, Gansu 730000, China
| | - Liqian Du
- School
of Pharmacy, Lanzhou University, No. 199 Donggang West Road, Lanzhou, Gansu 730000, China
| | - Zhenzhen Si
- School
of Pharmacy, Lanzhou University, No. 199 Donggang West Road, Lanzhou, Gansu 730000, China
| | - Hong Fang
- School
of Pharmacy, Lanzhou University, No. 199 Donggang West Road, Lanzhou, Gansu 730000, China
| | - Huanxiang Liu
- Faculty
of Applied Sciences, Macao Polytechnic University, R. de Luís Gonzaga Gomes, Macao, Macau 999078, China
| | - Yingqian Liu
- School
of Pharmacy, Lanzhou University, No. 199 Donggang West Road, Lanzhou, Gansu 730000, China
| | - Peng Chen
- School
of Pharmacy, Lanzhou University, No. 199 Donggang West Road, Lanzhou, Gansu 730000, China
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Bhattacharya A, Babu NR, Bandyopadhyay D, Peruncheralathan S. Cu(OTf) 2 Enhanced Intramolecular Nucleophilic N-Arylation of 2-Amino-3-arylquinolines. J Org Chem 2023. [PMID: 37339426 DOI: 10.1021/acs.joc.3c00645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/22/2023]
Abstract
In the presence of Cu(OTf)2 (5 mol %) and KOtBu, a synergistic effect of the N-arylation process on 2-amino-3-arylquinolines is observed. Within 4 h, this method provides a wide variety of norneocryptolepine analogues with good to excellent yields. Overall, a double heteroannulation strategy for the synthesis of indoloquinoline alkaloids from nonheterocyclic precursors is demonstrated. Mechanistic investigations establish that the reaction proceeds via the SNAr pathway. Despite moderate yields, the one-pot, two-step double heteroannulation illustrates that this procedure is highly atom-efficient. Neocryptolepine, a natural product, is also synthesized from indoloquinoline. A brief study of the photophysical properties of selected norneocryptolepine analogues is also discussed.
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Affiliation(s)
- Anwesha Bhattacharya
- School of Chemical Sciences, National Institute of Science Education and Research (NISER) Bhubaneswar, an OCC of Homi Bhabha National Institute, Khurda - 752050, Odisha, India
| | - Nayanthara Ramesh Babu
- School of Chemical Sciences, National Institute of Science Education and Research (NISER) Bhubaneswar, an OCC of Homi Bhabha National Institute, Khurda - 752050, Odisha, India
| | - Debashruti Bandyopadhyay
- School of Chemical Sciences, National Institute of Science Education and Research (NISER) Bhubaneswar, an OCC of Homi Bhabha National Institute, Khurda - 752050, Odisha, India
| | - Saravanan Peruncheralathan
- School of Chemical Sciences, National Institute of Science Education and Research (NISER) Bhubaneswar, an OCC of Homi Bhabha National Institute, Khurda - 752050, Odisha, India
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Unravelling the pharmacological properties of cryptolepine and its derivatives: a mini-review insight. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2023; 396:229-238. [PMID: 36251044 PMCID: PMC9574835 DOI: 10.1007/s00210-022-02302-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 10/02/2022] [Indexed: 01/29/2023]
Abstract
Cryptolepine (1,5-methyl-10H-indolo[3,2-b]quinoline), an indoloquinoline alkaloid, found in the roots of Cryptolepis sanguinolenta (Lindl.) Schltr (family: Periplocaceae), is associated with the suppression of cancer and protozoal infections. Cryptolepine also exhibits anti-bacterial, anti-fungal, anti-hyperglycemic, antidiabetic, anti-inflammatory, anti-hypotensive, antipyretic, and antimuscarinic properties. This review of the latest research data can be exploited to create a basis for the discovery of new cryptolepine-based drugs and their analogues in the near future. PubMed, Scopus, and Google Scholar databases were searched to select and collect data from the existing literature on cryptolepine and their pharmacological properties. Several in vitro studies have demonstrated the potential of cryptolepine A as an anticancer and antimalarial molecule, which is achieved through inhibiting DNA synthesis and topoisomerase II. This review summarizes the recent developments of cryptolepine pharmacological properties and functional mechanisms, providing information for future research on this natural product.
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Abacha YZ, Forkuo AD, Gbedema SY, Mittal N, Ottilie S, Rocamora F, Winzeler EA, van Schalkwyk DA, Kelly JM, Taylor MC, Reader J, Birkholtz LM, Lisgarten DR, Cockcroft JK, Lisgarten JN, Palmer RA, Talbert RC, Shnyder SD, Wright CW. Semi-Synthetic Analogues of Cryptolepine as a Potential Source of Sustainable Drugs for the Treatment of Malaria, Human African Trypanosomiasis, and Cancer. Front Pharmacol 2022; 13:875647. [PMID: 35600849 PMCID: PMC9119314 DOI: 10.3389/fphar.2022.875647] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 03/08/2022] [Indexed: 12/11/2022] Open
Abstract
The prospect of eradicating malaria continues to be challenging in the face of increasing parasite resistance to antimalarial drugs so that novel antimalarials active against asexual, sexual, and liver-stage malaria parasites are urgently needed. In addition, new antimalarials need to be affordable and available to those most in need and, bearing in mind climate change, should ideally be sustainable. The West African climbing shrub Cryptolepis sanguinolenta is used traditionally for the treatment of malaria; its principal alkaloid, cryptolepine (1), has been shown to have antimalarial properties, and the synthetic analogue 2,7-dibromocryptolepine (2) is of interest as a lead toward new antimalarial agents. Cryptolepine (1) was isolated using a two-step Soxhlet extraction of C. sanguinolenta roots, followed by crystallization (yield 0.8% calculated as a base with respect to the dried roots). Semi-synthetic 7-bromo- (3), 7, 9-dibromo- (4), 7-iodo- (5), and 7, 9-dibromocryptolepine (6) were obtained in excellent yields by reaction of 1 with N-bromo- or N-iodosuccinimide in trifluoroacetic acid as a solvent. All compounds were active against Plasmodia in vitro, but 6 showed the most selective profile with respect to Hep G2 cells: P. falciparum (chloroquine-resistant strain K1), IC50 = 0.25 µM, SI = 113; late stage, gametocytes, IC50 = 2.2 µM, SI = 13; liver stage, P. berghei sporozoites IC50 = 6.13 µM, SI = 4.6. Compounds 3-6 were also active against the emerging zoonotic species P. knowlesi with 5 being the most potent (IC50 = 0.11 µM). In addition, 3-6 potently inhibited T. brucei in vitro at nM concentrations and good selectivity with 6 again being the most selective (IC50 = 59 nM, SI = 478). These compounds were also cytotoxic to wild-type ovarian cancer cells as well as adriamycin-resistant and, except for 5, cisplatin-resistant ovarian cancer cells. In an acute oral toxicity test in mice, 3-6 did not exhibit toxic effects at doses of up to 100 mg/kg/dose × 3 consecutive days. This study demonstrates that C. sanguinolenta may be utilized as a sustainable source of novel compounds that may lead to the development of novel agents for the treatment of malaria, African trypanosomiasis, and cancer.
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Affiliation(s)
- Yabalu Z. Abacha
- School of Pharmacy and Medical Sciences, University of Bradford, Bradford, United Kingdom,Department of Pharmacognosy, Faculty of Pharmacy, University of Maiduguri, Maiduguri, Nigeria
| | - Arnold Donkor Forkuo
- Department of Pharmacology, Faculty of Pharmacy and Pharmaceutical Sciences, College of Health Sciences, Kwame Nkrumah University of Science and Technology (KNUST), Kumasi, Ghana
| | - Stephen Y. Gbedema
- Department of Pharmaceutics, Faculty of Pharmacy and Pharmaceutical Sciences, College of Health Sciences, KNUST, Kumasi, Ghana
| | - Nimisha Mittal
- Malaria Drug Accelerator (MalDA) Consortium, School of Medicine, University of California, San Diego, La Jolla, CA, United States
| | - Sabine Ottilie
- Malaria Drug Accelerator (MalDA) Consortium, School of Medicine, University of California, San Diego, La Jolla, CA, United States
| | - Frances Rocamora
- Malaria Drug Accelerator (MalDA) Consortium, School of Medicine, University of California, San Diego, La Jolla, CA, United States
| | - Elizabeth A. Winzeler
- Malaria Drug Accelerator (MalDA) Consortium, School of Medicine, University of California, San Diego, La Jolla, CA, United States
| | - Donelly A. van Schalkwyk
- Department of Infection Biology, Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - John M. Kelly
- Department of Infection Biology, Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Martin C. Taylor
- Department of Infection Biology, Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Janette Reader
- Department of Biochemistry, Genetics and Microbiology, Faculty of Natural and Agricultural Sciences, Institute for Sustainable Malaria Control, University of Pretoria, Hatfield, South Africa
| | - Lyn-Marie Birkholtz
- Department of Biochemistry, Genetics and Microbiology, Faculty of Natural and Agricultural Sciences, Institute for Sustainable Malaria Control, University of Pretoria, Hatfield, South Africa
| | - David R. Lisgarten
- Biomolecular Research Group, School of Psychology and Life Sciences, Canterbury Christ Church University, Canterbury, United Kingdom
| | - Jeremy K. Cockcroft
- Department of Chemistry, Christopher Ingold Laboratories, University College London, London, United Kingdom
| | | | - Rex A. Palmer
- Department of Crystallography, Biochemical Sciences, Birkbeck College, University of London, London, United Kingdom
| | - Rosemary C. Talbert
- Biomolecular Research Group, School of Psychology and Life Sciences, Canterbury Christ Church University, Canterbury, United Kingdom
| | - Steven D. Shnyder
- School of Pharmacy and Medical Sciences, Institute of Cancer Therapeutics, University of Bradford, Bradford, United Kingdom
| | - Colin W. Wright
- School of Pharmacy and Medical Sciences, University of Bradford, Bradford, United Kingdom,*Correspondence: Colin W. Wright,
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Mehraj U, Qayoom H, Sofi S, Farhana P, Asdaq SMB, Mir MA. Cryptolepine Targets TOP2A and Inhibits Tumor Cell Proliferation in Breast Cancer Cells - An in vitro and in silico Study. Anticancer Agents Med Chem 2022; 22:3025-3037. [PMID: 35440335 DOI: 10.2174/1871520622666220419135547] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 03/17/2022] [Accepted: 03/21/2022] [Indexed: 11/22/2022]
Abstract
BACKGROUND DNA Topoisomerase II Alpha (TOP2A), a protein-coding gene, is central to the replication process and has been found deregulated in several malignancies, including breast cancer. Several therapeutic regimens have been developed and approved for targeting TOP2A and have prolonged the survival of cancer patients. However, due to the inherent nature of the tumor cell to evolve, the earlier positive response turns into a refractory chemoresistance in breast cancer patients. OBJECTIVE The study's main objective was to analyze the expression pattern and prognostic significance of TOP2A in breast cancer patients and screen new therapeutic molecules targeting TOP2A. METHODS We utilized an integrated bioinformatic approach to analyze the expression pattern, genetic alteration, immune association, and prognostic significance of TOP2A in breast cancer (BC) and screened natural compounds targeting TOP2A, and performed an in-silico and an in vitro analysis. RESULTS Our study showed that TOP2A is highly overexpressed in breast cancer tissues and overexpression of TOP2A correlates with worse overall survival (OS) and relapse-free survival (RFS). Moreover, TOP2A showed a high association with tumor stroma, particularly with myeloid-derived suppressor cells. Also, in silico and in vitro analysis revealed cryptolepine as a promising natural compound targeting TOP2A. CONCLUSION Cumulatively, this study signifies that TOP2A promotes breast cancer progression, and targeting TOP2A in combination with other therapeutic agents will significantly enhance the response of BC patients to therapy and reduce the development of chemoresistance.
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Affiliation(s)
- Umar Mehraj
- Department of Bioresources, School of Biological Sciences, University of Kashmir, Srinagar 190006, J&K India
| | - Hina Qayoom
- Department of Bioresources, School of Biological Sciences, University of Kashmir, Srinagar 190006, J&K India
| | - Shazia Sofi
- Department of Bioresources, School of Biological Sciences, University of Kashmir, Srinagar 190006, J&K India
| | - Pzd Farhana
- Department of Bioresources, School of Biological Sciences, University of Kashmir, Srinagar 190006, J&K India
| | - Syed M B Asdaq
- Department of Pharmacy Practice, College of Pharmacy, Almaarefa University, Riyadh-13713, KSA
| | - Manzoor Ahmad Mir
- Department of Bioresources, School of Biological Sciences, University of Kashmir, Srinagar 190006, J&K India
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Nyerges M, Biró K, Tatai J, Pollák B, Molnár M. Microwave-Induced One Step Synthesis of Structurally Diverse Linear Indoloquinolines: Concise Synthesis of Norneocryptolepine. HETEROCYCLES 2022. [DOI: 10.3987/com-22-14718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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