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Gaobotse G, Venkataraman S, Brown PD, Masisi K, Kwape TE, Nkwe DO, Rantong G, Makhzoum A. The use of African medicinal plants in cancer management. Front Pharmacol 2023; 14:1122388. [PMID: 36865913 PMCID: PMC9971233 DOI: 10.3389/fphar.2023.1122388] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 02/03/2023] [Indexed: 02/16/2023] Open
Abstract
Cancer is the third leading cause of premature death in sub-Saharan Africa. Cervical cancer has the highest number of incidences in sub-Saharan Africa due to high HIV prevalence (70% of global cases) in African countries which is linked to increasing the risk of developing cervical cancer, and the continuous high risk of being infected with Human papillomavirus In 2020, the risk of dying from cancer amongst women was higher in Eastern Africa (11%) than it was in Northern America (7.4%). Plants continue to provide unlimited pharmacological bioactive compounds that are used to manage various illnesses, including cancer. By reviewing the literature, we provide an inventory of African plants with reported anticancer activity and evidence supporting their use in cancer management. In this review, we report 23 plants that have been used for cancer management in Africa, where the anticancer extracts are usually prepared from barks, fruits, leaves, roots, and stems of these plants. Extensive information is reported about the bioactive compounds present in these plants as well as their potential activities against various forms of cancer. However, information on the anticancer properties of other African medicinal plants is insufficient. Therefore, there is a need to isolate and evaluate the anticancer potential of bioactive compounds from other African medicinal plants. Further studies on these plants will allow the elucidation of their anticancer mechanisms of action and allow the identification of phytochemicals that are responsible for their anticancer properties. Overall, this review provides consolidated and extensive information not only on diverse medicinal plants of Africa but on the different types of cancer that these plants are used to manage and the diverse mechanisms and pathways that are involved during cancer alleviation.
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Affiliation(s)
- Goabaone Gaobotse
- Department of Biological Sciences and Biotechnology, Faculty of Sciences, Botswana International University of Science and Technology, Palapye, Botswana,*Correspondence: Goabaone Gaobotse, ; Kabo Masisi, ; Abdullah Makhzoum,
| | - Srividhya Venkataraman
- Virology Laboratory, Department of Cell and Systems Biology, University of Toronto, Toronto, ON, Canada
| | - Phenyo D. Brown
- Department of Biological Sciences and Biotechnology, Faculty of Sciences, Botswana International University of Science and Technology, Palapye, Botswana
| | - Kabo Masisi
- Department of Biological Sciences and Biotechnology, Faculty of Sciences, Botswana International University of Science and Technology, Palapye, Botswana,*Correspondence: Goabaone Gaobotse, ; Kabo Masisi, ; Abdullah Makhzoum,
| | - Tebogo E. Kwape
- Department of Biological Sciences and Biotechnology, Faculty of Sciences, Botswana International University of Science and Technology, Palapye, Botswana
| | - David O. Nkwe
- Department of Biological Sciences and Biotechnology, Faculty of Sciences, Botswana International University of Science and Technology, Palapye, Botswana
| | - Gaolathe Rantong
- Department of Biological Sciences and Biotechnology, Faculty of Sciences, Botswana International University of Science and Technology, Palapye, Botswana
| | - Abdullah Makhzoum
- Department of Biological Sciences and Biotechnology, Faculty of Sciences, Botswana International University of Science and Technology, Palapye, Botswana,*Correspondence: Goabaone Gaobotse, ; Kabo Masisi, ; Abdullah Makhzoum,
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Chen YC, Chia YC, Huang BM. Phytochemicals from Polyalthia Species: Potential and Implication on Anti-Oxidant, Anti-Inflammatory, Anti-Cancer, and Chemoprevention Activities. Molecules 2021; 26:molecules26175369. [PMID: 34500802 PMCID: PMC8433920 DOI: 10.3390/molecules26175369] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 08/30/2021] [Accepted: 08/31/2021] [Indexed: 11/24/2022] Open
Abstract
Polyalthia belong to the Annonaceae family and are a type of evergreen tree distributed across many tropical and subtropical regions. Polyalthia species have been used long term as indigenous medicine to treat certain diseases, including fever, diabetes, infection, digestive disease, etc. Recent studies have demonstrated that not only crude extracts but also the isolated pure compounds exhibit various pharmacological activities, such as anti-oxidant, anti-microbial, anti-tumor, anti-cancer, etc. It is known that the initiation of cancer usually takes several years and is related to unhealthy lifestyle, as well as dietary and environmental factors, such as stress, toxins and smoking. In fact, natural or synthetic substances have been used as cancer chemoprevention to delay, impede, or even stop cancer growing. This review is an attempt to collect current available phytochemicals from Polyalthia species, which exhibit anti-cancer potentials for chemoprevention purposes, providing directions for further research on the interesting agents and possible clinical applications.
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Affiliation(s)
- Yung-Chia Chen
- Department of Anatomy, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan;
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Yi-Chen Chia
- Department of Food Science and Technology, TaJen University, Pingtung 90741, Taiwan;
| | - Bu-Miin Huang
- Department of Cell Biology and Anatomy, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 40402, Taiwan
- Correspondence: ; Tel.: +886-06-2353535 (ext. 5337); Fax: +886-06-2093007
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17-Allylamino-demethoxygeldanamycin Used Alone or in Combination with Sodium Orthovanadate Promotes Apoptosis and Inhibits Invasion of SH-SY5Y Cells by Modulating PIWIL2. BIOMED RESEARCH INTERNATIONAL 2020. [DOI: 10.1155/2020/7894712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Neuroblastoma (NB) is one of the most common extracranial solid tumors of childhood and accounts for 15% of cancer deaths. Even with the multimodality treatment protocols, the advanced-stage tumor overall 5-year survival rate is less than 50%. Therefore, novel drug therapy targeting cellular signal transduction pathways regulating the apoptotic cascade may be important for the treatment of drug-resistant NB. In our previous studies, we have demonstrated that 5 μM sodium orthovanadate (SOV) induced the apoptosis of SH-SY5Y cells. 17-Allylamino-demethoxygeldanamycin (17-AAG) is a geldanamycin- (GA-) derived heat shock protein 90 (Hsp90) inhibitor, and it has been shown to have potent antitumor activity in head and neck cancers. However, the effect of 17-AAG on the apoptosis of NB cells has not been reported. Therefore, the purpose of this study was to determine the effects of 17-AAG and SOV on the growth and invasion of SH-SY5Y cells in vitro and explore the related mechanism. In this study, we first investigated the antiviability effect of 17-AAG on SH-SY5Y cells, then studied the cell apoptosis and invasion influenced by 17-AAG and SOV, and assessed the role of PIWI-Like2 (PIWIL2) and piRNA-PIWI signaling in it. The results showed that 5 μM 17-AAG inhibited cell growth and viability and induced apoptosis in SH-SY5Y cells. Both 17-AAG and SOV reduced the level of PIWIL2 and Bcl-xl proteins and inhibited the invasion of SH-SY5Y cells. In addition, the combined use of the two drugs had greater effect than the single use of any drug.
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Wang F, Zhou S, Qi D, Xiang SH, Wong ET, Wang X, Fonkem E, Hsieh TC, Yang J, Kirmani B, Shabb JB, Wu JM, Wu M, Huang JH, Yu WH, Wu E. Nucleolin Is a Functional Binding Protein for Salinomycin in Neuroblastoma Stem Cells. J Am Chem Soc 2019; 141:3613-3622. [PMID: 30689374 DOI: 10.1021/jacs.8b12872] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The aim of this study is to illuminate a novel therapeutic approach by identifying a functional binding target of salinomycin, an emerging anticancer stem cell (CSC) agent, and to help dissect the underlying action mechanisms. By utilizing integrated strategies, we identify that nucleolin (NCL) is likely a salinomycin-binding target and a critical regulator involved in human neuroblastoma (NB) CSC activity. Salinomycin markedly suppresses NB CD34 expression and reduces CD34+ cell population in an NCL-dependent manner via disruption of the interaction of NCL with CD34 promoter. The elevated levels of NCL expression in NB tumors are associated with poor patient survival. Altogether, these results indicate that NCL is likely a novel functional salinomycin-binding target that exhibits the potential to be a prognostic marker for NB therapy.
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Affiliation(s)
- Fengfei Wang
- Department of Neurosurgery , Baylor Scott & White Health , Temple , Texas 78508 , United States
- Neuroscience Institute , Baylor Scott & White Health , Temple , Texas 76502 , United States
- Department of Neurology , Baylor Scott & White Health , Temple , Texas 78508 , United States
- Department of Surgery , Texas A & M University College of Medicine , Temple , Texas 76504 , United States
| | - Shuang Zhou
- Department of Neurosurgery , Baylor Scott & White Health , Temple , Texas 78508 , United States
- Neuroscience Institute , Baylor Scott & White Health , Temple , Texas 76502 , United States
- Cancer Research Institute, Department of Medicine, Beth Israel Deaconess Medical Center , Harvard Medical School , Boston , Massachusetts 02215 , United States
| | - Dan Qi
- Department of Neurosurgery , Baylor Scott & White Health , Temple , Texas 78508 , United States
- Neuroscience Institute , Baylor Scott & White Health , Temple , Texas 76502 , United States
| | - Shi-Hua Xiang
- Nebraska Center for Virology, School of Veterinary Medicine and Biomedical Sciences , University of Nebraska-Lincoln , Lincoln , Nebraska 68583 , United States
| | - Eric T Wong
- Cancer Research Institute, Department of Medicine, Beth Israel Deaconess Medical Center , Harvard Medical School , Boston , Massachusetts 02215 , United States
| | - Xuejing Wang
- Department of Neurology , The First Affiliated Hospital of Zhengzhou University , Zhengzhou , Henan 450052 , China
| | - Ekokobe Fonkem
- Department of Neurosurgery , Baylor Scott & White Health , Temple , Texas 78508 , United States
- Neuroscience Institute , Baylor Scott & White Health , Temple , Texas 76502 , United States
- Department of Neurology , Baylor Scott & White Health , Temple , Texas 78508 , United States
- Department of Surgery , Texas A & M University College of Medicine , Temple , Texas 76504 , United States
- LIVESTRONG Cancer Institutes, Dell Medical School , The University of Texas at Austin , Austin , Texas 78712 , United States
| | - Tze-Chen Hsieh
- Department of Biochemistry and Molecular Biology , New York Medical College , Valhalla , New York 10595 , United States
| | - Jianhua Yang
- Texas Children's Cancer Center, Department of Pediatrics, Dan L. Duncan Cancer Center , Baylor College of Medicine , Houston , Texas 77030 , United States
| | - Batool Kirmani
- Department of Neurology , Baylor Scott & White Health , Temple , Texas 78508 , United States
- Department of Surgery , Texas A & M University College of Medicine , Temple , Texas 76504 , United States
| | - John B Shabb
- Department of Biomedical Sciences, School of Medicine and Health Sciences , University of North Dakota , Grand Forks , North Dakota 58202 , United States
| | - Joseph M Wu
- Department of Biochemistry and Molecular Biology , New York Medical College , Valhalla , New York 10595 , United States
| | - Min Wu
- Department of Biomedical Sciences, School of Medicine and Health Sciences , University of North Dakota , Grand Forks , North Dakota 58202 , United States
| | - Jason H Huang
- Department of Neurosurgery , Baylor Scott & White Health , Temple , Texas 78508 , United States
- Neuroscience Institute , Baylor Scott & White Health , Temple , Texas 76502 , United States
- Department of Surgery , Texas A & M University College of Medicine , Temple , Texas 76504 , United States
| | - Wei-Hsuan Yu
- Institute of Biochemistry and Molecular Biology, College of Medicine , National Taiwan University , Taipei 10051 , Taiwan
| | - Erxi Wu
- Department of Neurosurgery , Baylor Scott & White Health , Temple , Texas 78508 , United States
- Neuroscience Institute , Baylor Scott & White Health , Temple , Texas 76502 , United States
- Department of Surgery , Texas A & M University College of Medicine , Temple , Texas 76504 , United States
- LIVESTRONG Cancer Institutes, Dell Medical School , The University of Texas at Austin , Austin , Texas 78712 , United States
- Department of Pharmaceutical Sciences , Texas A & M University College of Pharmacy , College Station , Texas 77843 , United States
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