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Naponelli V, Rocchetti MT, Mangieri D. Apigenin: Molecular Mechanisms and Therapeutic Potential against Cancer Spreading. Int J Mol Sci 2024; 25:5569. [PMID: 38791608 PMCID: PMC11122459 DOI: 10.3390/ijms25105569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Revised: 05/16/2024] [Accepted: 05/17/2024] [Indexed: 05/26/2024] Open
Abstract
Due to its propensity to metastasize, cancer remains one of the leading causes of death worldwide. Thanks in part to their intrinsic low cytotoxicity, the effects of the flavonoid family in the prevention and treatment of various human cancers, both in vitro and in vivo, have received increasing attention in recent years. It is well documented that Apigenin (4',5,7-trihydroxyflavone), among other flavonoids, is able to modulate key signaling molecules involved in the initiation of cancer cell proliferation, invasion, and metastasis, including JAK/STAT, PI3K/Akt/mTOR, MAPK/ERK, NF-κB, and Wnt/β-catenin pathways, as well as the oncogenic non-coding RNA network. Based on these premises, the aim of this review is to emphasize some of the key events through which Apigenin suppresses cancer proliferation, focusing specifically on its ability to target key molecular pathways involved in angiogenesis, epithelial-to-mesenchymal transition (EMT), maintenance of cancer stem cells (CSCs), cell cycle arrest, and cancer cell death.
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Affiliation(s)
- Valeria Naponelli
- Department of Medicine and Surgery, University of Parma, Plesso Biotecnologico Integrato, Via Volturno 39, 43126 Parma, Italy
| | - Maria Teresa Rocchetti
- Department of Clinical and Experimental Medicine, University of Foggia, Via Pinto 1, 71122 Foggia, Italy;
| | - Domenica Mangieri
- Department of Clinical and Experimental Medicine, University of Foggia, Via Pinto 1, 71122 Foggia, Italy;
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Jayaprakash P, Isaev D, Yang KHS, Beiram R, Oz M, Sadek B. Apigenin Alleviates Autistic-like Stereotyped Repetitive Behaviors and Mitigates Brain Oxidative Stress in Mice. Pharmaceuticals (Basel) 2024; 17:482. [PMID: 38675442 PMCID: PMC11054933 DOI: 10.3390/ph17040482] [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: 03/15/2024] [Revised: 04/03/2024] [Accepted: 04/06/2024] [Indexed: 04/28/2024] Open
Abstract
Studying the involvement of nicotinic acetylcholine receptors (nAChRs), specifically α7-nAChRs, in neuropsychiatric brain disorders such as autism spectrum disorder (ASD) has gained a growing interest. The flavonoid apigenin (APG) has been confirmed in its pharmacological action as a positive allosteric modulator of α7-nAChRs. However, there is no research describing the pharmacological potential of APG in ASD. The aim of this study was to evaluate the effects of the subchronic systemic treatment of APG (10-30 mg/kg) on ASD-like repetitive and compulsive-like behaviors and oxidative stress status in the hippocampus and cerebellum in BTBR mice, utilizing the reference drug aripiprazole (ARP, 1 mg/kg, i.p.). BTBR mice pretreated with APG (20 mg/kg) or ARP (1 mg/g, i.p.) displayed significant improvements in the marble-burying test (MBT), cotton-shredding test (CST), and self-grooming test (SGT) (all p < 0.05). However, a lower dose of APG (10 mg/kg, i.p.) failed to modulate behaviors in the MBT or SGT, but significantly attenuated the increased shredding behaviors in the CST of tested mice. Moreover, APG (10-30 mg/kg, i.p.) and ARP (1 mg/kg) moderated the disturbed levels of oxidative stress by mitigating the levels of catalase (CAT) and superoxide dismutase (SOD) in the hippocampus and cerebellum of treated BTBR mice. In patch clamp studies in hippocampal slices, the potency of choline (a selective agonist of α7-nAChRs) in activating fast inward currents was significantly potentiated following incubation with APG. Moreover, APG markedly potentiated the choline-induced enhancement of spontaneous inhibitory postsynaptic currents. The observed results propose the potential therapeutic use of APG in the management of ASD. However, further preclinical investigations in additional models and different rodent species are still needed to confirm the potential relevance of the therapeutic use of APG in ASD.
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Affiliation(s)
- Petrilla Jayaprakash
- Department of Pharmacology & Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates (R.B.)
- Zayed Bin Sultan Center for Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
| | - Dmytro Isaev
- Department of Cellular Membranology, Bogomoletz Institute of Physiology, 01024 Kiev, Ukraine;
| | - Keun-Hang Susan Yang
- Department of Biological Sciences, Schmid College of Science and Technology, Chapman University, One University Drive, Orange, CA 92866, USA;
| | - Rami Beiram
- Department of Pharmacology & Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates (R.B.)
- Zayed Bin Sultan Center for Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
| | - Murat Oz
- Department of Pharmacology and Therapeutics, College of Pharmacy, Kuwait University, Safat 13110, Kuwait
| | - Bassem Sadek
- Department of Pharmacology & Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates (R.B.)
- Zayed Bin Sultan Center for Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
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Razaqtania R, Pertiwi D, Trisnadi S, Sarosa H, Kusumarawati T, Chodijah, Putra A. Ameliorating Effect of Apium graveolens (Celery) Extracts on IL-6 Plasma Level and Expression of Caspase 3 on Liver in Animal Model of Lead Intoxication. Pak J Biol Sci 2024; 27:52-58. [PMID: 38516746 DOI: 10.3923/pjbs.2024.52.58] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2024]
Abstract
<b>Background and Objective:</b> Lead poisoning (Pb) is a big problem because it is found in almost all objects in daily life such as vehicle fuel, water pipes, ceramics, cosmetics and others. Continuous lead exposure can increase ROS resulting in an increase in hepatic IL-6 and caspase 3 which replaces hepatic cell apoptosis. The objective of this study was to determine the effect of <i>Apium graveolens</i> (celery) extract on plasma IL-6 and hepatic caspase 3 levels. <b>Materials and Methods:</b> This study used a post-test control group design. The research subjects were 20 Wistar rats that met the inclusion criteria and were divided into 4 groups randomly, namely (a) Sham group that had no treatment, (b) Negative control group was induced with lead acetate 200 mg kg<sup>1</sup> body weight/day without any treatment (c) Positive control group and (d) Treated group. On the 15th day, blood was taken to check IL-6 levels and tissue was taken for liver caspase 3 examination by immunohistochemical method. Data analysis used the one-way ANOVA test and continued with the <i>post hoc</i> LSD test. <b>Results:</b> The highest mean caspase 3 expression was in the control group 45.84±4.39 pg mL<sup>1</sup>, while the mean of IL-6 plasma level was highest in the P1 641.33±39.72 pg mL<sup>1</sup> group. The Mann-Whitney test showed a significant difference in IL-6 levels between the study groups (p = 0.000). The Mann-Whitney test showed a significant difference in caspase 3 levels between the study groups (p = 0.000). <b>Conclusion:</b> Giving celery extract 300 mg kg<sup>1</sup> body weight/day affects plasma IL-6 and hepatic caspase 3 levels in lead acetate-induced rats.
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Sudhakaran M, Navarrete TG, Mejía-Guerra K, Mukundi E, Eubank TD, Grotewold E, Arango D, Doseff AI. Transcriptome reprogramming through alternative splicing triggered by apigenin drives cell death in triple-negative breast cancer. Cell Death Dis 2023; 14:824. [PMID: 38092740 PMCID: PMC10719380 DOI: 10.1038/s41419-023-06342-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Revised: 11/19/2023] [Accepted: 11/27/2023] [Indexed: 12/17/2023]
Abstract
Triple-negative breast cancer (TNBC) is characterized by its aggressiveness and resistance to cancer-specific transcriptome alterations. Alternative splicing (AS) is a major contributor to the diversification of cancer-specific transcriptomes. The TNBC transcriptome landscape is characterized by aberrantly spliced isoforms that promote tumor growth and resistance, underscoring the need to identify approaches that reprogram AS circuitry towards transcriptomes, favoring a delay in tumorigenesis or responsiveness to therapy. We have previously shown that flavonoid apigenin is associated with splicing factors, including heterogeneous nuclear ribonucleoprotein A2 (hnRNPA2). Here, we showed that apigenin reprograms TNBC-associated AS transcriptome-wide. The AS events affected by apigenin were statistically enriched in hnRNPA2 substrates. Comparative transcriptomic analyses of human TNBC tumors and non-tumor tissues showed that apigenin can switch cancer-associated alternative spliced isoforms (ASI) to those found in non-tumor tissues. Apigenin preferentially affects the splicing of anti-apoptotic and proliferation factors, which are uniquely observed in cancer cells, but not in non-tumor cells. Apigenin switches cancer-associated aberrant ASI in vivo in TNBC xenograft mice by diminishing proliferation and increasing pro-apoptotic ASI. In accordance with these findings, apigenin increased apoptosis and reduced tumor proliferation, thereby halting TNBC growth in vivo. Our results revealed that apigenin reprograms transcriptome-wide TNBC-specific AS, thereby inducing apoptosis and hindering tumor growth. These findings underscore the impactful effects of nutraceuticals in altering cancer transcriptomes, offering new options to influence outcomes in TNBC treatments.
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Affiliation(s)
- Meenakshi Sudhakaran
- Molecular, Cellular, and Integrative Physiology Graduate Program, Michigan State University, East Lansing, MI, USA
| | - Tatiana García Navarrete
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI, USA
| | | | - Eric Mukundi
- Department of Molecular Genetics, The Ohio State University, Columbus, OH, USA
| | - Timothy D Eubank
- Department of Microbiology, Immunology & Cell Biology, West Virginia University, Morgantown, WV, USA
| | - Erich Grotewold
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI, USA
| | - Daniel Arango
- Department of Pharmacology and Robert H. Lurie Comprehensive Cancer Center, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA.
| | - Andrea I Doseff
- Department of Physiology and Department of Pharmacology and Toxicology, Michigan State University, East Lansing, MI, USA.
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Almeer R, Alyami NM. The protective effect of apigenin against inorganic arsenic salt-induced toxicity in PC12 cells. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:106625-106635. [PMID: 37730986 DOI: 10.1007/s11356-023-29884-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Accepted: 09/11/2023] [Indexed: 09/22/2023]
Abstract
Poisoning by arsenic affects people worldwide, and many human illnesses and health issues, including neurotoxicity, have been linked to chronic exposure to arsenic. When exposed to arsenic, the body produces intracellular reactive oxygen species (ROS), which influence a variety of alterations in cellular activity and directly harm molecules through oxidation. Arsenic-induced lesions are improved by antioxidants with the ability to lower ROS levels. Therefore, the current research aimed to assess how well apigenin protected PC12 cells from the toxicity caused by inorganic arsenic salt (iAs). For 24 and 48 h, iAs and/or apigenin were applied to PC12 cells. Then, oxidative stress indicators like malondialdehyde (MDA), nitric oxide (NO), and ROS in addition to the enzymatic and non-enzymatic antioxidant molecules such as catalase (CAT), glutathione (GSH), and superoxide dismutase (SOD) were assessed. Moreover, after exposure to iAs, PC12 was examined for nuclear factor erythroid 2-related factor 2 (Nrf2) expression to clarify how apigenin manifests its neuroprotection. Furthermore, NF-kB p65 concentration and IL-1B, IL-6, and TNF-α mRNA expression were measured to assess neuroinflammation. Bax, caspase-3, and Bcl-2 levels were measured to investigate apigenin's potential to protect PC12 cells from iAs poisoning. The obtained results revealed that, the cell survival rate in the iAs group was significantly lower (P < 0.05), and the number of viable cells steadily increased after apigenin treatment. Furthermore, the study found that iAs decreased GSH, CAT, and SOD in the PC12 cells while increasing ROS, MDA, and NO levels. In PC12 cells, the capacity of iAs to cause oxidative stress was linked to the induction of neuroinflammation and apoptosis. Interestingly, apigenin pre-treatment of PC12 cells resulted in exceptional protection against iAs-induced neuroinflammation, oxidative stress, and apoptotic cell death. Nrf2 upregulation in PC12 cells may explain the neuroprotection effect of apigenin against iAs toxicity. In conclusion, the obtained results of the present study have clinical significance and indicate that apigenin is a promising candidate for shielding the nervous system from toxic effects caused by arsenic. These findings require further investigation using in vivo experimental models.
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Affiliation(s)
- Rafa Almeer
- Department of Zoology, College of Science, King Saud University, P.O. Box 2455, 11451, Riyadh, Saudi Arabia.
| | - Nouf M Alyami
- Department of Zoology, College of Science, King Saud University, P.O. Box 2455, 11451, Riyadh, Saudi Arabia
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Farhan M, Rizvi A, Aatif M, Ahmad A. Current Understanding of Flavonoids in Cancer Therapy and Prevention. Metabolites 2023; 13:metabo13040481. [PMID: 37110140 PMCID: PMC10142845 DOI: 10.3390/metabo13040481] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 03/21/2023] [Accepted: 03/23/2023] [Indexed: 03/29/2023] Open
Abstract
Cancer is a major cause of death worldwide, with multiple pathophysiological manifestations. In particular, genetic abnormalities, inflammation, bad eating habits, radiation exposure, work stress, and toxin consumption have been linked to cancer disease development and progression. Recently, natural bioactive chemicals known as polyphenols found in plants were shown to have anticancer capabilities, destroying altered or malignant cells without harming normal cells. Flavonoids have demonstrated antioxidant, antiviral, anticancer, and anti-inflammatory effects. Flavonoid type, bioavailability, and possible method of action determine these biological actions. These low-cost pharmaceutical components have significant biological activities and are beneficial for several chronic disorders, including cancer. Recent research has focused primarily on isolating, synthesizing, and studying the effects of flavonoids on human health. Here we have attempted to summarize our current knowledge of flavonoids, focusing on their mode of action to better understand their effects on cancer.
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Wu J, Luo Y, Shen Y, Hu Y, Zhu F, Wu J, Liu Y. Integrated Metabonomics and Network Pharmacology to Reveal the Action Mechanism Effect of Shaoyao Decoction on Ulcerative Colitis. Drug Des Devel Ther 2022; 16:3739-3776. [PMID: 36324421 PMCID: PMC9620839 DOI: 10.2147/dddt.s375281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 09/27/2022] [Indexed: 11/13/2022] Open
Abstract
Background Traditional Chinese medicine (TCM) has the advantage of multi-component and multi-target, which becomes a hot spot in the treatment of numerous diseases. Shaoyao decoction (SYD) is a TCM prescription, which is mainly used to treat damp-heat dysentery clinically, with small side effects and low cost. However, its mechanism remains elusive. The purpose of this study is to explore the mechanism of SYD in the treatment of mice with ulcerative colitis (UC) induced by dextran sulfate sodium (DSS) through metabolomics and network pharmacology, and verify through molecular docking and immunohistochemistry, so as to provide a scientific basis for the role of SYD in the treatment of UC. Materials and Methods Firstly, DSS-induced UC models were established and then untargeted metabolomics analysis of feces, livers, serum and urine was performed to determine biomarkers and metabolic pathways closely related to the role of SYD. Besides, network pharmacology was applied to screen the active components and UC-related targets, which was verified by molecular docking. Finally, metabonomics and network pharmacology were combined to draw the metabolite-pathway-target network and verified by immunohistochemistry. Results Metabolomics results showed that a total of 61 differential metabolites were discovered in SYD-treated UC with 3 main metabolic pathways containing glycerophospholipid metabolism, sphingolipid metabolism and biosynthesis of unsaturated fatty acids, as well as 8 core targets involving STAT3, IL1B, IL6, IL2, AKT1, IL4, ICAM1 and CCND1. Molecular docking demonstrated that the first five targets had strong affinity with quercetin, wogonin, kaempferol and baicalein. Combined with metabolomics and network pharmacology, sphingolipid signaling pathway, PI3K/AKT-mTOR signaling pathway and S1P3 pathway were identified as the main pathways. Conclusion SYD can effectively ameliorate various symptoms and alleviate intestinal mucosal damage and metabolic disorder in DSS induced UC mice. Its effect is mainly related to sphingolipid metabolism, PI3K/AKT-mTOR signaling pathway and S1P3 pathway.
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Affiliation(s)
- Jin Wu
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, 310053, People’s Republic of China
| | - Yiting Luo
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, 310053, People’s Republic of China
| | - Yan Shen
- Department of Gastroenterology, The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, 310005, People’s Republic of China
| | - Yuyao Hu
- Department of Gastroenterology, The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, 310005, People’s Republic of China
| | - Fangyuan Zhu
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, 310053, People’s Republic of China
| | - Jiaqian Wu
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, 310053, People’s Republic of China
| | - Yingchao Liu
- Academic Affairs Office, Zhejiang Chinese Medical University, Hangzhou, 310053, People’s Republic of China,Correspondence: Yingchao Liu, Academic Affairs Office, Zhejiang Chinese Medical University, Hangzhou, 310053, People’s Republic of China, Email
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Differential Flavonoids and Carotenoids Profiles in Grains of Six Poaceae Crops. Foods 2022; 11:foods11142068. [PMID: 35885312 PMCID: PMC9325323 DOI: 10.3390/foods11142068] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 07/07/2022] [Accepted: 07/08/2022] [Indexed: 12/12/2022] Open
Abstract
Poaceae practically dominate staple crops for humans. In addition to the issue of sustenance, there is a growing interest in the secondary metabolites of these staple crops and their functions on health. In this study, metabolomic variations were investigated among six important species of Poaceae with a total of 17 cultivars, including wheat, maize, rice, sorghum, foxtail millet, and broomcorn millet. A total of 201 flavonoid metabolites and 29 carotenoid metabolites were identified based on the UPLC-ESI-MS/MS system. Among them, 114, 128, 101, 179, 113, and 92 flavonoids and 12, 22, 17, 15, 21, and 18 carotenoids were found in wheat, maize, rice, sorghum, foxtail millet, and broomcorn millet, respectively. Only 46 flavonoids and 8 carotenoids were shared by the six crops. Crop-specific flavonoids and carotenoids were identified. Flavone, anthocyanins, flavanone and polyphenol were the major metabolite differences, which showed species specificity. The flavonoid content of the grains from 17J1344 (sorghum), QZH and NMB (foxtail millet) and carotenoids from Mo17 (maize) were higher than the other samples. This study provides a better knowledge of the differences in flavonoid and carotenoid metabolites among Poaceae crops, as well as provides a theoretical basis for the identification of functional metabolites in these grains.
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Pharmacological Properties of 4′, 5, 7-Trihydroxyflavone (Apigenin) and Its Impact on Cell Signaling Pathways. Molecules 2022; 27:molecules27134304. [PMID: 35807549 PMCID: PMC9267958 DOI: 10.3390/molecules27134304] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 06/23/2022] [Accepted: 07/01/2022] [Indexed: 12/04/2022] Open
Abstract
Plant bioactive compounds, particularly apigenin, have therapeutic potential and functional activities that aid in the prevention of infectious diseases in many mammalian bodies and promote tumor growth inhibition. Apigenin is a flavonoid with low toxicities and numerous bioactive properties due to which it has been considered as a traditional medicine for decades. Apigenin shows synergistic effects in combined treatment with sorafenib in the HepG2 human cell line (HCC) in less time and statistically reduces the viability of tumor cells, migration, gene expression and apoptosis. The combination of anti-cancerous drugs with apigenin has shown health promoting potential against various cancers. It can prevent cell mobility, maintain the cell cycle and stimulate the immune system. Apigenin also suppresses mTOR activity and raises the UVB-induced phagocytosis and reduces the cancerous cell proliferation and growth. It also has a high safety threshold, and active (anti-cancer) doses can be gained by consuming a vegetable and apigenin rich diet. Apigenin also boosted autophagosome formation, decreased cell proliferation and activated autophagy by preventing the activity of the PI3K pathway, specifically in HepG2 cells. This paper provides an updated overview of apigenin’s beneficial anti-inflammatory, antibacterial, antiviral, and anticancer effects, making it a step in the right direction for therapeutics. This study also critically analyzed the effect of apigenin on cancer cell signaling pathways including the PI3K/AKT/MTOR, JAK/STAT, NF-κB and ERK/MAPK pathways.
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Dawkins JJ, Allegretti JR, Gibson TE, McClure E, Delaney M, Bry L, Gerber GK. Gut metabolites predict Clostridioides difficile recurrence. MICROBIOME 2022; 10:87. [PMID: 35681218 PMCID: PMC9178838 DOI: 10.1186/s40168-022-01284-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 05/02/2022] [Indexed: 05/10/2023]
Abstract
BACKGROUND Clostridioides difficile infection (CDI) is the most common hospital acquired infection in the USA, with recurrence rates > 15%. Although primary CDI has been extensively linked to gut microbial dysbiosis, less is known about the factors that promote or mitigate recurrence. Moreover, previous studies have not shown that microbial abundances in the gut measured by 16S rRNA amplicon sequencing alone can accurately predict CDI recurrence. RESULTS We conducted a prospective, longitudinal study of 53 non-immunocompromised participants with primary CDI. Stool sample collection began pre-CDI antibiotic treatment at the time of diagnosis, and continued up to 8 weeks post-antibiotic treatment, with weekly or twice weekly collections. Samples were analyzed using (1) 16S rRNA amplicon sequencing, (2) liquid chromatography/mass-spectrometry metabolomics measuring 1387 annotated metabolites, and (3) short-chain fatty acid profiling. The amplicon sequencing data showed significantly delayed recovery of microbial diversity in recurrent participants, and depletion of key anaerobic taxa at multiple time-points, including Clostridium cluster XIVa and IV taxa. The metabolomic data also showed delayed recovery in recurrent participants, and moreover mapped to pathways suggesting distinct functional abnormalities in the microbiome or host, such as decreased microbial deconjugation activity, lowered levels of endocannabinoids, and elevated markers of host cell damage. Further, using predictive statistical/machine learning models, we demonstrated that the metabolomic data, but not the other data sources, can accurately predict future recurrence at 1 week (AUC 0.77 [0.71, 0.86; 95% interval]) and 2 weeks (AUC 0.77 [0.69, 0.85; 95% interval]) post-treatment for primary CDI. CONCLUSIONS The prospective, longitudinal, and multi-omic nature of our CDI recurrence study allowed us to uncover previously unrecognized dynamics in the microbiome and host presaging recurrence, and, in particular, to elucidate changes in the understudied gut metabolome. Moreover, we demonstrated that a small set of metabolites can accurately predict future recurrence. Our findings have implications for development of diagnostic tests and treatments that could ultimately short-circuit the cycle of CDI recurrence, by providing candidate metabolic biomarkers for diagnostics development, as well as offering insights into the complex microbial and metabolic alterations that are protective or permissive for recurrence. Video Abstract.
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Affiliation(s)
- Jennifer J. Dawkins
- Department of Pathology, Brigham & Woman’s Hospital, Harvard Medical School, Boston, MA USA
- Harvard-MIT Health Sciences & Technology, Harvard Medical School, MIT, Cambridge, MA USA
| | - Jessica R. Allegretti
- Massachusetts Host-Microbiome Center, Boston, MA USA
- Division of Gastroenterology, Brigham & Woman’s Hospital, Harvard Medical School, Boston, MA USA
| | - Travis E. Gibson
- Department of Pathology, Brigham & Woman’s Hospital, Harvard Medical School, Boston, MA USA
| | - Emma McClure
- Division of Gastroenterology, Brigham & Woman’s Hospital, Harvard Medical School, Boston, MA USA
| | - Mary Delaney
- Massachusetts Host-Microbiome Center, Boston, MA USA
| | - Lynn Bry
- Department of Pathology, Brigham & Woman’s Hospital, Harvard Medical School, Boston, MA USA
- Massachusetts Host-Microbiome Center, Boston, MA USA
| | - Georg K. Gerber
- Department of Pathology, Brigham & Woman’s Hospital, Harvard Medical School, Boston, MA USA
- Harvard-MIT Health Sciences & Technology, Harvard Medical School, MIT, Cambridge, MA USA
- Massachusetts Host-Microbiome Center, Boston, MA USA
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The effect of apigenin and chemotherapy combination treatments on apoptosis-related genes and proteins in acute leukaemia cell lines. Sci Rep 2022; 12:8858. [PMID: 35614109 PMCID: PMC9132959 DOI: 10.1038/s41598-022-11441-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 03/30/2022] [Indexed: 12/30/2022] Open
Abstract
Apigenin is a dietary polyphenol found abundantly in fruit and vegetables, which sensitizes leukaemia cells to topoisomerase inhibitor agents (e.g., etoposide), and alkylating agents (e.g., cyclophosphamide), reducing ATP levels and inducing apoptosis; whilst being protective to control haematopoietic stem cells. This study analysed the expression profiles of intrinsic and extrinsic apoptosis-related genes and proteins to help elucidate the mechanisms of action of apigenin when used in combination with etoposide or cyclophosphamide in lymphoid and myeloid leukaemia cell lines (Jurkat and THP-1). Expression of apoptosis-related genes were measured using a TaqMan® Human Apoptosis Array and the StepOne Plus RT-qPCR System, whilst apoptosis-related proteins were determined using a protein profiler™-human apoptosis array and the LI-COR OdysseyR Infrared Imaging System. Apigenin when combined with etoposide or cyclophosphamide-induced apoptosis via the mitochondrial pathway, increasing the expression of pro-apoptotic cytochrome c, SMAC/DIABLO, and HTRA2/OMI, which promoted caspase-9 and -3 activation. Targeting anti-apoptotic and/or pro-apoptotic members of the apoptotic pathways is a promising strategy to induce cancer cell death and improve sensitivity to chemotherapy agents. Here the apoptotic pathways induced by apigenin in combination with etoposide or cyclophosphamide were identified within human leukaemia cell lines, such applications could provide combination therapies for the treatment of leukaemia.
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Role of Induced Programmed Cell Death in the Chemopreventive Potential of Apigenin. Int J Mol Sci 2022; 23:ijms23073757. [PMID: 35409117 PMCID: PMC8999072 DOI: 10.3390/ijms23073757] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 03/25/2022] [Accepted: 03/28/2022] [Indexed: 02/01/2023] Open
Abstract
The flavonoid apigenin (4′,5,7-trihydroxyflavone), which is one of the most widely distributed phytochemicals in the plant kingdom, is one of the most thoroughly investigated phenolic components. Previous studies have attributed the physiological effects of apigenin to its anti-allergic, antibacterial, antidiabetic, anti-inflammatory, antioxidant, antiviral, and blood-pressure-lowering properties, and its documented anticancer properties have been attributed to the induction of apoptosis and autophagy, the inhibition of inflammation, angiogenesis, and cell proliferation, and the regulation of cellular responses to oxidative stress and DNA damage. The most well-known mechanism for the compound’s anticancer effects in human cancer cell lines is apoptosis, followed by autophagy, and studies have also reported that apigenin induces novel cell death mechanisms, such as necroptosis and ferroptosis. Therefore, the aim of this paper is to review the therapeutic potential of apigenin as a chemopreventive agent, as well as the roles of programmed cell death mechanisms in the compound’s chemopreventive properties.
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Kim Y, Kim J, He M, Lee A, Cho E. Apigenin Ameliorates Scopolamine-Induced Cognitive Dysfunction and Neuronal Damage in Mice. Molecules 2021; 26:5192. [PMID: 34500626 PMCID: PMC8433809 DOI: 10.3390/molecules26175192] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 08/13/2021] [Accepted: 08/24/2021] [Indexed: 01/21/2023] Open
Abstract
We investigated the protective effect and mechanisms of apigenin against cognitive impairments in a scopolamine-injected mouse model. Our results showed that intraperitoneal (i.p.) injection of scopolamine leads to learning and memory dysfunction, whereas the administration of apigenin (synthetic compound, 100 and 200 mg/kg/day) improved cognitive ability, which was confirmed by behavioral tests such as the T-maze test, novel objective recognition test, and Morris water maze test in mice. In addition, scopolamine-induced lipid peroxidation in the brain was attenuated by administration of apigenin. To further evaluate the protective mechanisms of apigenin on cognitive and memory function, Western blot analysis was carried out. Administration of apigenin decreased the B-cell lymphoma 2-associated X/B-cell lymphoma 2 (Bax/Bcl-2) ratio and suppressed caspase-3 and poly ADP ribose polymerase cleavage. Furthermore, apigenin down-regulated the β-site amyloid precursor protein-cleaving enzyme, along with presenilin 1 (PS1) and PS2 protein levels. Apigenin-administered mice showed lower protein levels of a receptor for advanced glycation end-products, whereas insulin-degrading enzyme, brain-derived neurotrophic factor (BDNF), and tropomyosin receptor kinase B (TrkB) expression were promoted by treatment with apigenin. Therefore, this study demonstrated that apigenin is an active substance that can improve cognitive and memory functions by regulating apoptosis, amyloidogenesis, and BDNF/TrkB signaling pathways.
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Affiliation(s)
- Yeojin Kim
- Department of Food Science and Nutrition & Kimchi Research Institute, Pusan National University, Busan 46241, Korea; (Y.K.); (J.K.); (M.H.)
- Neural Circuit Research Group, Korea Brain Research Institute, Daegu 41062, Korea
| | - Jihyun Kim
- Department of Food Science and Nutrition & Kimchi Research Institute, Pusan National University, Busan 46241, Korea; (Y.K.); (J.K.); (M.H.)
| | - Meitong He
- Department of Food Science and Nutrition & Kimchi Research Institute, Pusan National University, Busan 46241, Korea; (Y.K.); (J.K.); (M.H.)
| | - Ahyoung Lee
- Department of Food Science, Gyeongsang National University, Jinju 52725, Korea
| | - Eunju Cho
- Department of Food Science and Nutrition & Kimchi Research Institute, Pusan National University, Busan 46241, Korea; (Y.K.); (J.K.); (M.H.)
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14
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Singh RK, Kumar S, Tomar MS, Verma PK, Kumar A, Kumar S, Kumar N, Singh JP, Acharya A. Putative role of natural products as Protein Kinase C modulator in different disease conditions. ACTA ACUST UNITED AC 2021; 29:397-414. [PMID: 34216003 DOI: 10.1007/s40199-021-00401-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Accepted: 05/25/2021] [Indexed: 12/26/2022]
Abstract
INTRODUCTION Protein kinase C (PKC) is a promising drug target for various therapeutic areas. Natural products derived from plants, animals, microorganisms, and marine organisms have been used by humans as medicine from prehistoric times. Recently, several compounds derived from plants have been found to modulate PKC activities through competitive binding with ATP binding site, and other allosteric regions of PKC. As a result fresh race has been started in academia and pharmaceutical companies to develop an effective naturally derived small-molecule inhibitor to target PKC activities. Herein, in this review, we have discussed several natural products and their derivatives, which are reported to have an impact on PKC signaling cascade. METHODS All information presented in this review article regarding the regulation of PKC by natural products has been acquired by a systematic search of various electronic databases, including ScienceDirect, Scopus, Google Scholar, Web of science, ResearchGate, and PubMed. The keywords PKC, natural products, curcumin, rottlerin, quercetin, ellagic acid, epigallocatechin-3 gallate, ingenol 3 angelate, resveratrol, protocatechuic acid, tannic acid, PKC modulators from marine organism, bryostatin, staurosporine, midostaurin, sangivamycin, and other relevant key words were explored. RESULTS The natural products and their derivatives including curcumin, rottlerin, quercetin, ellagic acid, epigallocatechin-3 gallate, ingenol 3 angelate, resveratrol, bryostatin, staurosporine, and midostaurin play a major role in the management of PKC activity during various disease progression. CONCLUSION Based on the comprehensive literature survey, it could be concluded that various natural products can regulate PKC activity during disease progression. However, extensive research is needed to circumvent the challenge of isoform specific regulation of PKC by natural products.
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Affiliation(s)
- Rishi Kant Singh
- Department of Zoology, Institute of Science, BHU, Varanasi, 221005, India
| | | | - Munendra Singh Tomar
- Department of Pharmaceutical Science, School of Pharmacy, University of Colorado, Denver, USA
| | | | - Amit Kumar
- Department of Zoology, Institute of Science, BHU, Varanasi, 221005, India
| | - Sandeep Kumar
- Department of Zoology, Institute of Science, BHU, Varanasi, 221005, India
| | - Naveen Kumar
- Department of Zoology, Institute of Science, BHU, Varanasi, 221005, India
| | - Jai Prakash Singh
- Department of Panchkarma, Institute of Medical Science, BHU, Varanasi, India, 221005
| | - Arbind Acharya
- Department of Zoology, Institute of Science, BHU, Varanasi, 221005, India.
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15
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Gao S, Zhao X, Hou L, Ma R, Zhou J, Zhu MX, Pan SJ, Li Y. The interplay between SUMOylation and phosphorylation of PKCδ facilitates oxidative stress-induced apoptosis. FEBS J 2021; 288:6447-6464. [PMID: 34089566 DOI: 10.1111/febs.16050] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 04/30/2021] [Accepted: 06/03/2021] [Indexed: 12/01/2022]
Abstract
Although the increase in the number of identified posttranslational modifications (PTMs) has substantially improved our knowledge about substrate site specificity of single PTMs, the fact that different types of PTMs can crosstalk and act in concert to exert important regulatory mechanisms for protein function has not gained much attention. Here, we show that protein kinase Cδ (PKCδ) is SUMOylated at lysine 473 in its C-terminal catalytic domain, and the SUMOylation increases PKCδ stability by repressing its ubiquitination. In addition, we uncover a functional interplay between the phosphorylation and SUMOylation of PKCδ, which can strengthen each other through recruiting SUMO E2/E3 ligases and the PKCδ kinase, respectively, to the PKCδ complexes. We identified PIAS2β as the SUMO E3 ligase of PKCδ. More importantly, by enhancing PKCδ protein stability and its phosphorylation through an interdependent interplay of the PTMs, the SUMOylation of PKCδ promotes apoptotic cell death induced by H2 O2 . We conclude that SUMOylation represents an important regulatory mechanism of PKCδ PTMs for the kinase's function in oxidative cell damage.
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Affiliation(s)
- Siman Gao
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, China
| | - Xiangteng Zhao
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, China
| | - Lin Hou
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, China
| | - Ruining Ma
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, China
| | - Jie Zhou
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, China
| | - Michael X Zhu
- Department of Integrative Biology and Pharmacology, McGovern Medical School, The University of Texas Health Science Center at Houston, TX, USA
| | - Si-Jian Pan
- Department of Neurosurgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, China
| | - Yong Li
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, China
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Angeline P, Thomas A, Sankaranarayanan SA, Rengan AK. Effect of pH on Isoliquiritigenin (ISL) fluorescence in lipo- polymeric system and metallic nanosystem. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 252:119545. [PMID: 33588365 DOI: 10.1016/j.saa.2021.119545] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 01/21/2021] [Accepted: 01/23/2021] [Indexed: 06/12/2023]
Abstract
Flavonoids have various medicinal properties such as anti-inflammatory, anti-oxidant, anti-cancer, antiviral. Yet, the fluorescent properties of flavonoids are less explored and termed as autofluorescence in general. This study investigates the fluorescence properties of Isoliquiritigenin (ISL) in various alkaline conditions. The maximum fluorescence emission was obtained at pH 12 on excitation wavelength of 440 nm. Theoretical and experimental investigation on the shift in UV-Vis absorbance spectra, upon the variation in pH, performed, indicated deprotonation as the cause. PEG-based stable liposome carrier, with an internal alkaline environment (LIP-ISL-NaOH) that aids in flavonoid fluorescence, was synthesized using a modified thin-film hydration method. The hydrodynamic size of the liposome synthesized was in the range of 50-70 nm. PEG, on the addition, found maintaining the alkaline environment in the internal chamber of the lipo-polymer system, helps the LIP-ISLNaOH nanosystem to exhibit fluorescence irrespective of the suspension pH. Further, reducing property of ISL was used for the synthesis of Au nanoclusters to achieve theranostic nature.
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Affiliation(s)
- Phebee Angeline
- Department of Biomedical Engineering, Indian Institute of Technology, Hyderabad, Kandi, Sangareddy 502 285, Telangana, India
| | - Aswathi Thomas
- Department of Biomedical Engineering, Indian Institute of Technology, Hyderabad, Kandi, Sangareddy 502 285, Telangana, India
| | - Sri Amruthaa Sankaranarayanan
- Department of Biomedical Engineering, Indian Institute of Technology, Hyderabad, Kandi, Sangareddy 502 285, Telangana, India
| | - Aravind Kumar Rengan
- Department of Biomedical Engineering, Indian Institute of Technology, Hyderabad, Kandi, Sangareddy 502 285, Telangana, India.
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17
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Desmet NM, Dhusia K, Qi W, Doseff AI, Bhattacharya S, Gilad AA. Bioengineering of Genetically Encoded Gene Promoter Repressed by the Flavonoid Apigenin for Constructing Intracellular Sensor for Molecular Events. BIOSENSORS-BASEL 2021; 11:bios11050137. [PMID: 33924783 PMCID: PMC8147076 DOI: 10.3390/bios11050137] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 04/23/2021] [Accepted: 04/26/2021] [Indexed: 12/21/2022]
Abstract
In recent years, Synthetic Biology has emerged as a new discipline where functions that were traditionally performed by electronic devices are replaced by "cellular devices"; genetically encoded circuits constructed of DNA that are built from biological parts (aka bio-parts). The cellular devices can be used for sensing and responding to natural and artificial signals. However, a major challenge in the field is that the crosstalk between many cellular signaling pathways use the same signaling endogenous molecules that can result in undesired activation. To overcome this problem, we utilized a specific promoter that can activate genes with a natural, non-toxic ligand at a highly-induced transcription level with low background or undesirable off-target expression. Here we used the orphan aryl hydrocarbon receptor (AHR), a ligand-activated transcription factor that upon activation binds to specific AHR response elements (AHRE) of the Cytochrome P450, family 1, subfamily A, polypeptide 1 (CYP1A1) promoter. Flavonoids have been identified as AHR ligands. Data presented here show the successful creation of a synthetic gene "off" switch that can be monitored directly using an optical reporter gene. This is the first step towards bioengineering of a synthetic, nanoscale bio-part for constructing a sensor for molecular events.
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Affiliation(s)
- Nicole M. Desmet
- Department of Biomedical Engineering, Michigan State University, East Lansing, MI 48824, USA; (N.M.D.); (K.D.); (W.Q.); (S.B.)
- Division of Synthetic Biology and Regenerative Medicine, Institute for Quantitative Health Science and Engineering, Michigan State University, East Lansing, MI 48824, USA
| | - Kalyani Dhusia
- Department of Biomedical Engineering, Michigan State University, East Lansing, MI 48824, USA; (N.M.D.); (K.D.); (W.Q.); (S.B.)
| | - Wenjie Qi
- Department of Biomedical Engineering, Michigan State University, East Lansing, MI 48824, USA; (N.M.D.); (K.D.); (W.Q.); (S.B.)
| | - Andrea I. Doseff
- Department of Physiology, Michigan State University, East Lansing, MI 48824, USA;
- Department of Pharmacology and Toxicology, Michigan State University, East Lansing, MI 48824, USA
| | - Sudin Bhattacharya
- Department of Biomedical Engineering, Michigan State University, East Lansing, MI 48824, USA; (N.M.D.); (K.D.); (W.Q.); (S.B.)
- Department of Pharmacology and Toxicology, Michigan State University, East Lansing, MI 48824, USA
| | - Assaf A. Gilad
- Department of Biomedical Engineering, Michigan State University, East Lansing, MI 48824, USA; (N.M.D.); (K.D.); (W.Q.); (S.B.)
- Division of Synthetic Biology and Regenerative Medicine, Institute for Quantitative Health Science and Engineering, Michigan State University, East Lansing, MI 48824, USA
- Department of Radiology, Michigan State University, East Lansing, MI 48824, USA
- Correspondence:
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18
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Zhao Z, Wu X, He F, Xiang C, Feng X, Bai X, Liu X, Zhao J, Takeda S, Qing Y. Critical roles of Rad54 in tolerance to apigenin-induced Top1-mediated DNA damage. Exp Ther Med 2021; 21:505. [PMID: 33791014 DOI: 10.3892/etm.2021.9936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 07/07/2020] [Indexed: 02/05/2023] Open
Abstract
Apigenin (APG), a flavone sub-class of flavonoids, possesses a diverse range of biological activities, including anti-cancer and anti-inflammatory effects. Previous studies identified the genotoxicity of APG in certain cancer cells, which may be associated with its anticancer effect. However, the DNA damage repair mechanism induced by APG has remained elusive. In order to clarify the molecular mechanisms, the present study determined the toxicity of APG to the wild-type (WT) DT40 chicken B-lymphocyte cell line, as well as to DT40 cells with deletions in various DNA repair genes, and their sensitivities were compared. It was demonstrated that cells deficient of Rad54, a critical homologous recombination gene, were particularly sensitive to APG. Cell-cycle analysis demonstrated that APG caused an increase in the G2/M-phase population of Rad54- / - cells that was greater than that in WT cells. Furthermore, it was demonstrated by immunofluorescence assay that Rad54- / - cells exhibited significantly increased numbers of γ-phosphorylated H2AX variant histone foci and chromosomal aberrations compared to the WT cells in response to APG. Of note, the in vitro complex of enzyme assay indicated that APG induced increased topoisomerase I (Top1) covalent protein DNA complex in Rad54- / - cells compared to WT cells. Finally, these results were verified using the TK6 human lymphoblastoid cell line and it was demonstrated that, as for DT40 cells, Rad54 deficiency sensitized TK6 cells to APG. The present study demonstrated that Rad54 was involved in the repair of APG-induced DNA damage, which was associated with Top1 inhibition.
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Affiliation(s)
- Zilu Zhao
- Department of Pharmacology, Key Laboratory of Drug-Targeting and Drug Delivery Systems of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Xiaohua Wu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Fang He
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Cuifang Xiang
- Department of Pharmacology, Key Laboratory of Drug-Targeting and Drug Delivery Systems of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Xiaoyu Feng
- Department of Pharmacology, Key Laboratory of Drug-Targeting and Drug Delivery Systems of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Xin Bai
- Department of Pharmacology, Key Laboratory of Drug-Targeting and Drug Delivery Systems of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Xin Liu
- Department of Pharmacology, Key Laboratory of Drug-Targeting and Drug Delivery Systems of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Jingxia Zhao
- Department of Pharmacology, Key Laboratory of Drug-Targeting and Drug Delivery Systems of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Shunichi Takeda
- Department of Radiation Genetics, Graduate School of Medicine, Kyoto University, Kyoto 606-8501, Japan
| | - Yong Qing
- Department of Pharmacology, Key Laboratory of Drug-Targeting and Drug Delivery Systems of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu, Sichuan 610041, P.R. China
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Splicing reprogramming of TRAIL/DISC-components sensitizes lung cancer cells to TRAIL-mediated apoptosis. Cell Death Dis 2021; 12:287. [PMID: 33731677 PMCID: PMC7969956 DOI: 10.1038/s41419-021-03567-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 02/19/2021] [Accepted: 02/22/2021] [Indexed: 01/31/2023]
Abstract
Tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) selective killing of cancer cells underlines its anticancer potential. However, poor tolerability and resistance underscores the need to identify cancer-selective TRAIL-sensitizing agents. Apigenin, a dietary flavonoid, sensitizes lung cancer cell lines to TRAIL. It remains unknown, however, whether apigenin sensitizes primary lung cancer cells to TRAIL and its underlying mechanisms. Here we show that apigenin reprograms alternative splicing of key TRAIL/death-inducing-signaling-complex (DISC) components: TRAIL Death Receptor 5 (DR5) and cellular-FLICE-inhibitory-protein (c-FLIP) by interacting with the RNA-binding proteins hnRNPA2 and MSI2, resulting in increased DR5 and decreased c-FLIPS protein levels, enhancing TRAIL-induced apoptosis of primary lung cancer cells. In addition, apigenin directly bound heat shock protein 70 (Hsp70), promoting TRAIL/DISC assembly and triggering apoptosis. Our findings reveal that apigenin directs alternative splicing and inhibits Hsp70 enhancing TRAIL anticancer activity. These findings underscore impactful synergies between diet and cancer treatments opening new avenues for improved cancer treatments.
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20
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Manso J, Sharifi-Rad J, Zam W, Tsouh Fokou PV, Martorell M, Pezzani R. Plant Natural Compounds in the Treatment of Adrenocortical Tumors. Int J Endocrinol 2021; 2021:5516285. [PMID: 34567112 PMCID: PMC8463247 DOI: 10.1155/2021/5516285] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 05/14/2021] [Accepted: 08/31/2021] [Indexed: 01/08/2023] Open
Abstract
Plant natural products are a plethora of diverse and complex molecules produced by the plant secondary metabolism. Among these, many can reserve beneficial or curative properties when employed to treat human diseases. Even in cancer, they can be successfully used and indeed numerous phytochemicals exert antineoplastic activity. The most common molecules derived from plants and used in the fight against cancer are polyphenols, i.e., quercetin, genistein, resveratrol, curcumin, etc. Despite valuable data especially in preclinical models on such compounds, few of them are currently used in the medical practice. Also, in adrenocortical tumors (ACT), phytochemicals are scarcely or not at all used. This work summarizes the available research on phytochemicals used against ACT and adrenocortical cancer, a very rare disease with poor prognosis and high metastatic potential, and wants to contribute to stimulate preclinical and clinical research to find new therapeutic strategies among the overabundance of biomolecules produced by the plant kingdom.
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Affiliation(s)
- Jacopo Manso
- Endocrinology Unit, Department of Medicine (DIMED), University of Padova, Via Ospedale 105, Padova 35128, Italy
| | - Javad Sharifi-Rad
- Phytochemistry Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Facultad de Medicina, Universidad del Azuay, Cuenca, Ecuador
| | - Wissam Zam
- Analytical and Food Chemistry Department, Faculty of Pharmacy, Tartous University, Tartous, Syria
| | | | - Miquel Martorell
- Department of Nutrition and Dietetics, Faculty of Pharmacy, Centre for Healthy Living, University of Concepción, Concepción 4070386, Chile
- Universidad de Concepción, Unidad de Desarrollo Tecnológico, UDT, Concepción 4070386, Chile
| | - Raffaele Pezzani
- Endocrinology Unit, Department of Medicine (DIMED), University of Padova, Via Ospedale 105, Padova 35128, Italy
- Phytotherapy Lab, Endocrinology Unit, Department of Medicine (DIMED), University of Padova, via Ospedale 105, 35128 Padova, Italy
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21
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Ahmed SA, Parama D, Daimari E, Girisa S, Banik K, Harsha C, Dutta U, Kunnumakkara AB. Rationalizing the therapeutic potential of apigenin against cancer. Life Sci 2020; 267:118814. [PMID: 33333052 DOI: 10.1016/j.lfs.2020.118814] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 11/14/2020] [Accepted: 11/20/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND Despite the remarkable advances made in the diagnosis and treatment of cancer during the past couple of decades, it remains the second largest cause of mortality in the world, killing approximately 9.6 million people annually. The major challenges in the treatment of the advanced stage of this disease are the development of chemoresistance, severe adverse effects of the drugs, and high treatment cost. Therefore, the development of drugs that are safe, efficacious, and cost-effective remains a 'Holy Grail' in cancer research. However, the research over the past four decades shed light on the cancer-preventive and therapeutic potential of natural products and their underlying mechanism of action. Apigenin is one such compound, which is known to be safe and has significant potential in the prevention and therapy of this disease. AIM To assess the literature available on the potential of apigenin and its analogs in modulating the key molecular targets leading to the prevention and treatment of different types of cancer. METHOD A comprehensive literature search has been carried out on PubMed for obtaining information related to the sources and analogs, chemistry and biosynthesis, physicochemical properties, biological activities, bioavailability and toxicity of apigenin. KEY FINDINGS The literature search resulted in many in vitro, in vivo and a few cohort studies that evidenced the effectiveness of apigenin and its analogs in modulating important molecular targets and signaling pathways such as PI3K/AKT/mTOR, JAK/STAT, NF-κB, MAPK/ERK, Wnt/β-catenin, etc., which play a crucial role in the development and progression of cancer. In addition, apigenin was also shown to inhibit chemoresistance and radioresistance and make cancer cells sensitive to these agents. Reports have further revealed the safety of the compound and the adaptation of nanotechnological approaches for improving its bioavailability. SIGNIFICANCE Hence, the present review recapitulates the properties of apigenin and its pharmacological activities against different types of cancer, which warrant further investigation in clinical settings.
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Affiliation(s)
- Semim Akhtar Ahmed
- Cell and Molecular Biology Laboratory, Department of Zoology, Cotton University, Pan Bazar, Guwahati, Assam 781001, India
| | - Dey Parama
- Cancer Biology Laboratory and DBT-AIST International Center for Translational and Environmental Research (DAICENTER), Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Assam 781039, India
| | - Enush Daimari
- Cell and Molecular Biology Laboratory, Department of Zoology, Cotton University, Pan Bazar, Guwahati, Assam 781001, India
| | - Sosmitha Girisa
- Cancer Biology Laboratory and DBT-AIST International Center for Translational and Environmental Research (DAICENTER), Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Assam 781039, India
| | - Kishore Banik
- Cancer Biology Laboratory and DBT-AIST International Center for Translational and Environmental Research (DAICENTER), Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Assam 781039, India
| | - Choudhary Harsha
- Cancer Biology Laboratory and DBT-AIST International Center for Translational and Environmental Research (DAICENTER), Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Assam 781039, India
| | - Uma Dutta
- Cell and Molecular Biology Laboratory, Department of Zoology, Cotton University, Pan Bazar, Guwahati, Assam 781001, India.
| | - Ajaikumar B Kunnumakkara
- Cancer Biology Laboratory and DBT-AIST International Center for Translational and Environmental Research (DAICENTER), Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Assam 781039, India.
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22
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Samanta S. Potential Bioactive Components and Health Promotional Benefits of Tea (Camellia sinensis). J Am Coll Nutr 2020; 41:65-93. [DOI: 10.1080/07315724.2020.1827082] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Affiliation(s)
- Saptadip Samanta
- Department of Physiology, Midnapore College, Midnapore, West Bengal, India
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23
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Sudhakaran M, Parra MR, Stoub H, Gallo KA, Doseff AI. Apigenin by targeting hnRNPA2 sensitizes triple-negative breast cancer spheroids to doxorubicin-induced apoptosis and regulates expression of ABCC4 and ABCG2 drug efflux transporters. Biochem Pharmacol 2020; 182:114259. [PMID: 33011162 DOI: 10.1016/j.bcp.2020.114259] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 09/25/2020] [Accepted: 09/29/2020] [Indexed: 01/14/2023]
Abstract
Acquired resistance to doxorubicin is a major hurdle in triple-negative breast cancer (TNBC) therapy, emphasizing the need to identify improved strategies. Apigenin and other structurally related dietary flavones are emerging as potential chemo-sensitizers, but their effect on three-dimensional TNBC spheroid models has not been investigated. We previously showed that apigenin associates with heterogeneous ribonuclear protein A2/B1 (hnRNPA2), an RNA-binding protein involved in mRNA and co-transcriptional regulation. However, the role of hnRNPA2 in apigenin chemo-sensitizing activity has not been investigated. Here, we show that apigenin induced apoptosis in TNBC spheroids more effectively than apigenin-glycoside, owing to higher cellular uptake. Moreover, apigenin inhibited the growth of TNBC patient-derived organoids at an in vivo achievable concentration. Apigenin sensitized spheroids to doxorubicin-induced DNA damage, triggering caspase-9-mediated intrinsic apoptotic pathway and caspase-3 activity. Silencing of hnRNPA2 decreased apigenin-induced sensitization to doxorubicin in spheroids by diminishing apoptosis and partly abrogated apigenin-mediated reduction of ABCC4 and ABCG2 efflux transporters. Together these findings provide novel insights into the critical role of hnRNPA2 in mediating apigenin-induced sensitization of TNBC spheroids to doxorubicin by increasing the expression of efflux transporters and apoptosis, underscoring the relevance of using dietary compounds as a chemotherapeutic adjuvant.
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MESH Headings
- ATP Binding Cassette Transporter, Subfamily G, Member 2/biosynthesis
- ATP Binding Cassette Transporter, Subfamily G, Member 2/genetics
- Animals
- Antibiotics, Antineoplastic/administration & dosage
- Antibiotics, Antineoplastic/metabolism
- Apigenin/administration & dosage
- Apigenin/metabolism
- Apoptosis/drug effects
- Apoptosis/physiology
- Cell Survival/drug effects
- Cell Survival/physiology
- Dose-Response Relationship, Drug
- Doxorubicin/administration & dosage
- Doxorubicin/metabolism
- Drug Delivery Systems/methods
- Female
- Gene Expression Regulation, Neoplastic
- Heterogeneous-Nuclear Ribonucleoprotein Group A-B/deficiency
- Heterogeneous-Nuclear Ribonucleoprotein Group A-B/genetics
- Humans
- Mice
- Multidrug Resistance-Associated Proteins/biosynthesis
- Multidrug Resistance-Associated Proteins/genetics
- Neoplasm Proteins/biosynthesis
- Neoplasm Proteins/genetics
- Spheroids, Cellular/drug effects
- Spheroids, Cellular/metabolism
- Triple Negative Breast Neoplasms/drug therapy
- Triple Negative Breast Neoplasms/genetics
- Triple Negative Breast Neoplasms/metabolism
- Xenograft Model Antitumor Assays/methods
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Affiliation(s)
- Meenakshi Sudhakaran
- Physiology Graduate Program, Michigan State University, East Lansing, MI 48824, United States
| | - Michael Ramirez Parra
- Department of Physiology, Michigan State University, East Lansing, MI 48824, United States
| | - Hayden Stoub
- Physiology Graduate Program, Michigan State University, East Lansing, MI 48824, United States
| | - Kathleen A Gallo
- Department of Physiology, Michigan State University, East Lansing, MI 48824, United States.
| | - Andrea I Doseff
- Department of Physiology, Michigan State University, East Lansing, MI 48824, United States; Department of Pharmacology and Toxicology, Michigan State University, East Lansing, MI 48824, United States.
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Apigenin and Hesperidin Downregulate DNA Repair Genes in MCF-7 Breast Cancer Cells and Augment Doxorubicin Toxicity. Molecules 2020; 25:molecules25194421. [PMID: 32993087 PMCID: PMC7582946 DOI: 10.3390/molecules25194421] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 09/22/2020] [Accepted: 09/23/2020] [Indexed: 01/03/2023] Open
Abstract
A number of studies have confirmed anti-tumor activity of flavonoids and their ability to enhance the effectiveness of classical anticancer drugs. The mechanism of this phenomenon is difficult to explain because of the ambivalent nature of these compounds. Many therapeutic properties of these compounds are attributed to their antioxidant activity; however, it is known that they can act as oxidants. The aim of this study was to assess the influence of apigenin and hesperidin on MCF-7 breast cancer cells with doxorubicin. The cytotoxic effect was determined using an MTT test and cell cycle analysis. To evaluate the possible interaction mechanism, reduced glutathione levels, as well as the DNA oxidative damage and the double strand breaks, were evaluated. Additionally, mRNA expression of genes related to DNA repair was assessed. It was demonstrated that flavonoids intensified the cytotoxic effect of doxorubicin despite flavonoids reduced oxidative damage caused by the drug. At the same time, the number of double strand breaks significantly increased and expression of tested genes was downregulated. In conclusion, both apigenin and hesperidin enhance the cytotoxic effects of doxorubicin on breast cancer cells, and this phenomenon occurs regardless of oxidative stress but is accompanied by disorders of DNA damage response mechanisms.
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25
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Sudhakaran M, Doseff AI. The Targeted Impact of Flavones on Obesity-Induced Inflammation and the Potential Synergistic Role in Cancer and the Gut Microbiota. Molecules 2020; 25:E2477. [PMID: 32471061 PMCID: PMC7321129 DOI: 10.3390/molecules25112477] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [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: 05/21/2020] [Accepted: 05/23/2020] [Indexed: 12/19/2022] Open
Abstract
Obesity is an inflammatory disease that is approaching pandemic levels, affecting nearly 30% of the world's total population. Obesity increases the risk of diabetes, cardiovascular disorders, and cancer, consequentially impacting the quality of life and imposing a serious socioeconomic burden. Hence, reducing obesity and related life-threatening conditions has become a paramount health challenge. The chronic systemic inflammation characteristic of obesity promotes adipose tissue remodeling and metabolic changes. Macrophages, the major culprits in obesity-induced inflammation, contribute to sustaining a dysregulated immune function, which creates a vicious adipocyte-macrophage crosstalk, leading to insulin resistance and metabolic disorders. Therefore, targeting regulatory inflammatory pathways has attracted great attention to overcome obesity and its related conditions. However, the lack of clinical efficacy and the undesirable side-effects of available therapeutic options for obesity provide compelling reasons for the need to identify additional approaches for the prevention and treatment of obesity-induced inflammation. Plant-based active metabolites or nutraceuticals and diets with an increased content of these compounds are emerging as subjects of intense scientific investigation, due to their ability to ameliorate inflammatory conditions and offer safe and cost-effective opportunities to improve health. Flavones are a class of flavonoids with anti-obesogenic, anti-inflammatory and anti-carcinogenic properties. Preclinical studies have laid foundations by establishing the potential role of flavones in suppressing adipogenesis, inducing browning, modulating immune responses in the adipose tissues, and hindering obesity-induced inflammation. Nonetheless, the understanding of the molecular mechanisms responsible for the anti-obesogenic activity of flavones remains scarce and requires further investigations. This review recapitulates the molecular aspects of obesity-induced inflammation and the crosstalk between adipocytes and macrophages, while focusing on the current evidence on the health benefits of flavones against obesity and chronic inflammation, which has been positively correlated with an enhanced cancer incidence. We conclude the review by highlighting the areas of research warranting a deeper investigation, with an emphasis on flavones and their potential impact on the crosstalk between adipocytes, the immune system, the gut microbiome, and their role in the regulation of obesity.
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Affiliation(s)
- Meenakshi Sudhakaran
- Physiology Graduate Program, Michigan State University, East Lansing, MI 48824, USA;
- Department of Physiology, Michigan State University, East Lansing, MI 48824, USA
| | - Andrea I. Doseff
- Department of Physiology, Michigan State University, East Lansing, MI 48824, USA
- Department of Pharmacology and Toxicology, Michigan State University, East Lansing, MI 48824, USA
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26
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Composition and activity changes of the soluble water and ethanol extracts from white mulberry (Morus alba L.) fruits in response to thermal treatment. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2020. [DOI: 10.1007/s11694-019-00332-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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27
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Lagoa R, Marques-da-Silva D, Diniz M, Daglia M, Bishayee A. Molecular mechanisms linking environmental toxicants to cancer development: Significance for protective interventions with polyphenols. Semin Cancer Biol 2020; 80:118-144. [PMID: 32044471 DOI: 10.1016/j.semcancer.2020.02.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 01/25/2020] [Accepted: 02/01/2020] [Indexed: 12/12/2022]
Abstract
Human exposure to environmental toxicants with diverse mechanisms of action is a growing concern. In addition to well-recognized carcinogens, various chemicals in environmental and occupational settings have been suggested to impact health, increasing susceptibility to cancer by inducing genetic and epigenetic changes. Accordingly, in this review, we have discussed recent insights into the pathological mechanisms of these chemicals, namely their effects on cell redox and calcium homeostasis, mitochondria and inflammatory signaling, with a focus on the possible implications for multi-stage carcinogenesis and its reversal by polyphenols. Plant-derived polyphenols, such as epigallocatechin-gallate, resveratrol, curcumin and anthocyanins reduce the incidence of cancer and can be useful nutraceuticals for alleviating the detrimental outcomes of harmful pollutants. However, development of therapies based on polyphenol administration requires further studies to validate the biological efficacy, identifying effective doses, mode of action and new delivery forms. Innovative microphysiological testing models are presented and specific proposals for future trials are given. Merging the current knowledge of multifactorial actions of specific polyphenols and chief environmental toxicants, this work aims to potentiate the delivery of phytochemical-based protective treatments to individuals at high-risk due to environmental exposure.
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Affiliation(s)
- Ricardo Lagoa
- School of Technology and Management, Polytechnic Institute of Leiria, Morro do Lena, Alto do Vieiro, 2411-901 Leiria, Portugal; Applied Molecular Biosciences Unit, NOVA School of Science and Technology, NOVA University of Lisbon, 2829-516 Caparica, Portugal.
| | - Dorinda Marques-da-Silva
- School of Technology and Management, Polytechnic Institute of Leiria, Morro do Lena, Alto do Vieiro, 2411-901 Leiria, Portugal; Applied Molecular Biosciences Unit, NOVA School of Science and Technology, NOVA University of Lisbon, 2829-516 Caparica, Portugal
| | - Mário Diniz
- Applied Molecular Biosciences Unit, NOVA School of Science and Technology, NOVA University of Lisbon, 2829-516 Caparica, Portugal; Department of Chemistry, NOVA School of Science and Technology, NOVA University of Lisbon, 2829-516 Caparica, Portugal
| | - Maria Daglia
- Department of Pharmacy, University of Naples Federico II, 80131 Naples, Italy; International Research Center for Food Nutrition and Safety, Jiangsu University, Zhenjiang 212013, China
| | - Anupam Bishayee
- Lake Erie College of Osteopathic Medicine, 5000 Lakewood Ranch Boulevard, Bradenton, FL 34211, USA
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28
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Sun YS, Thakur K, Hu F, Zhang JG, Wei ZJ. Icariside II inhibits tumorigenesis via inhibiting AKT/Cyclin E/ CDK 2 pathway and activating mitochondria-dependent pathway. Pharmacol Res 2019; 152:104616. [PMID: 31883767 DOI: 10.1016/j.phrs.2019.104616] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 12/02/2019] [Accepted: 12/20/2019] [Indexed: 12/29/2022]
Abstract
Cervical cancer contributes largely in women cancer-related mortality. Herein, Icariside II, a flavonoid extracted from edible and pharmaceutical plant Epimedium brevicornum Maxim, exhibited significant anticancer activity on cervical cancer. At first, it was observed that Icariside II inhibited Hela cell proliferation at IC50 (9.2 μM) and the growth of Hela-originated xenografts in BALB/c nude mice. Next, we studied the underlying mechanisms of Icariside II from the aspects of cell growth and cell death. As for cell growth, Icariside II arrested cell cycle at G0/G1 phase through AKT/Cyclin E/CDK 2 from transcriptional and translational levels. As for cell death, Flow Cytometry and Immunofluorescence showed that Icariside II promoted cell death in a dose-dependet manner. And, Icariside II turned to activate the mitochondria-dependent pathway Caspase 9/Caspase 3 much more significantly than death receptor pathway Caspase 8/Caspase 3. Taken together, Icariside II presented anticancer effect on cervical cancer both in vitro and in vivo. Our study provides the evidence that Icariside II can be used as a suitable novel agent in cervical cancer treatment.
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Affiliation(s)
- Ya-Sai Sun
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, PR China.
| | - Kiran Thakur
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, PR China.
| | - Fei Hu
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, PR China.
| | - Jian-Guo Zhang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, PR China.
| | - Zhao-Jun Wei
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, PR China.
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29
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Thouri A, La Barbera L, Canuti L, Vegliante R, Jelled A, Flamini G, Ciriolo MR, Achour L. Antiproliferative and apoptosis-inducing effect of common Tunisian date seed (var. Korkobbi and Arechti) phytochemical-rich methanolic extract. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:36264-36273. [PMID: 31721029 DOI: 10.1007/s11356-019-06606-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2018] [Accepted: 09/24/2019] [Indexed: 06/10/2023]
Abstract
In this study, the potential of date seed extracts to induce growth inhibition and apoptosis in HepG2 and HeLa cells was investigated. Analysis of the phytochemical compound content of the two Tunisian minor date seed extracts named Arechti and Korkobbi was determined. Moreover, their antioxidant properties are assessed through different assays including DPPH, ABTS, FRAP, TBARS, and phosphomolybdenum methods. Whereas, the cytotoxic effect was evaluated and apoptosis induction was confirmed by western blot technique (caspase-9, caspase-3, and PARP-1). The results proved the richness in phytochemical compounds of these by-products which explains the high in vitro antioxidant activity and the antiproliferative effects of both seed extracts. Additionally, the decrease in total PARP-1, procaspase-3 levels, and the increase of cleaved caspase-9 revealed the apoptotic effect of date seed extracts. These results collectively illustrate the potential of date seed extracts to induce growth inhibition and apoptosis in HepG2 and HeLa cells thanks to its phytochemical richness.
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Affiliation(s)
- Amira Thouri
- Research Laboratory, "Bioresources: Biology Integrative and Valorization", Higher Institute of Biotechnology of Monastir, Avenue Tahar Hadded, BP 74, 5000, Monastir, Tunisia.
| | - Livia La Barbera
- Department of Biology, University of Rome "Tor Vergata", Via della Ricerca Scientifica, 00133, Rome, Italy
| | - Lorena Canuti
- Department of Biology, University of Rome "Tor Vergata", Via della Ricerca Scientifica, 00133, Rome, Italy
| | - Rolando Vegliante
- Department of Biology, University of Rome "Tor Vergata", Via della Ricerca Scientifica, 00133, Rome, Italy
| | - Aicha Jelled
- Laboratory of Histology and Cytogenetic and Childhood Disease UR12ES10, Faculty of Medicine, University of Monastir, Monastir, Tunisia
| | - Guido Flamini
- Dipartimento di Farmacia, University of Pisa, via Bonanno 6, 56126, Pisa, Italy
- Centro Interdipartimentale di Ricerca "Nutraceutica e Alimentazione per la Salute" Nutrafood, University of Pisa, Pisa, Italy
| | - Maria Rosa Ciriolo
- Department of Biology, University of Rome "Tor Vergata", Via della Ricerca Scientifica, 00133, Rome, Italy
| | - Lotfi Achour
- Research Laboratory, "Bioresources: Biology Integrative and Valorization", Higher Institute of Biotechnology of Monastir, Avenue Tahar Hadded, BP 74, 5000, Monastir, Tunisia
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30
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Sun LR, Zhou W, Zhang HM, Guo QS, Yang W, Li BJ, Sun ZH, Gao SH, Cui RJ. Modulation of Multiple Signaling Pathways of the Plant-Derived Natural Products in Cancer. Front Oncol 2019; 9:1153. [PMID: 31781485 PMCID: PMC6856297 DOI: 10.3389/fonc.2019.01153] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Accepted: 10/16/2019] [Indexed: 12/24/2022] Open
Abstract
Natural compounds are highly effective anticancer chemotherapeutic agents, and the targets of plant-derived anticancer agents have been widely reported. In this review, we focus on the main signaling pathways of apoptosis, proliferation, invasion, and metastasis that are regulated by polyphenols, alkaloids, saponins, and polysaccharides. Alkaloids primarily affect apoptosis-related pathways, while polysaccharides primarily target pathways related to proliferation, invasion, and metastasis. Other compounds, such as flavonoids and saponins, affect all of these aspects. The association between compound structures and signaling pathways may play a critical role in drug discovery.
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Affiliation(s)
- Li-Rui Sun
- Department of Pharmacy, The First Hospital of Jilin University, Changchun, China
| | - Wei Zhou
- Department of Pharmacy, The First Hospital of Jilin University, Changchun, China
| | - Hong-Mei Zhang
- Department of Pharmacy, The First Hospital of Jilin University, Changchun, China
| | - Qiu-Shi Guo
- Department of Pharmacy, The First Hospital of Jilin University, Changchun, China
| | - Wei Yang
- Jilin Provincial Key Laboratory on Molecular and Chemical Genetic, The Second Hospital of Jilin University, Changchun, China
| | - Bing-Jin Li
- Jilin Provincial Key Laboratory on Molecular and Chemical Genetic, The Second Hospital of Jilin University, Changchun, China
| | - Zhi-Hui Sun
- Department of Pharmacy, The First Hospital of Jilin University, Changchun, China
| | - Shuo-Hui Gao
- Department of Gastrointestinal Colorectal Surgery, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Ran-Ji Cui
- Jilin Provincial Key Laboratory on Molecular and Chemical Genetic, The Second Hospital of Jilin University, Changchun, China
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Xie Y, Liang D, Wu Q, Chen X, Buabeid MA, Wang Y. A System-Level Investigation into the Mechanisms of Apigenin Against Inflammation. Nat Prod Commun 2019. [DOI: 10.1177/1934578x19878600] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Apigenin is a natural flavone that possesses excellent biological activities especially against aging and cancer. However, the underlying mode of its action is not yet revealed. The purpose of this study was to examine the pharmacological mechanisms of apigenin using the knowledge of network pharmacology, protein-protein interaction (PPI) databases and biological processes analysis through Cytoscape. Apigenin targets were retrieved through PASS Prediction and STITCH database and the interactive associations between these targets were studied using STITCH, followed by GO (gene ontology) and pathway enrichment analysis. As a result of target search, 125 protein targets were retrieved. Moreover, 216 GO terms related to various biological processes, 16 GO terms for various molecular processes, 5 GO terms for the cellular components, and 52 Kyoto Encyclopedia of Genes and Genomes pathway terms were achieved by analyzing gene functional annotation clusters and abundance values of these targets. Most of these terms are strongly associated with inflammation through various pathways, for example, FOXO, mammalian target of rapamycin, tumor necrosis factor, p53, AMP-activated protein kinase, p13K-AKT, and mitogen-activated protein kinase, which play an important role in inflammation, aging and cancer. Apigenin can be used to treat inflammation, aging, and cancer with an underlying mechanism of inflammation suppression. This study contributed excellent information for a better understanding of the modes of action of apigenin. However, further studies such as docking and MD simulation are required to understand the therapeutic and toxicological roles of these targets of apigenin.
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Affiliation(s)
- Ying Xie
- Department of Internal Medicine, Jinan Central Hospital Affiliated to Shandong University, Jinan, Shandong Province, China
| | - Dongdong Liang
- Department of Endocrinology, Jinan Exchange and Service Center of Health Science, Jinan, Shandong Province, China
| | - Qingke Wu
- Innoscience Research Sdn Bhd, Subang Jaya, Selangor, Malaysia
| | - Xuemei Chen
- Innoscience Research Sdn Bhd, Subang Jaya, Selangor, Malaysia
| | - Manal Ali Buabeid
- Department of Clinical Sciences, College of Pharmacy and Health Sciences, Ajman University, UAE
| | - Yanfei Wang
- Department of General Surgery, The Second People Hospital of Dezhou, Shandong Province, China
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Ahn-Jarvis JH, Parihar A, Doseff AI. Dietary Flavonoids for Immunoregulation and Cancer: Food Design for Targeting Disease. Antioxidants (Basel) 2019; 8:E202. [PMID: 31261915 PMCID: PMC6680729 DOI: 10.3390/antiox8070202] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 06/25/2019] [Accepted: 06/26/2019] [Indexed: 12/13/2022] Open
Abstract
Flavonoids, one of the most abundant phytochemicals in a diet rich in fruits and vegetables, have been recognized as possessing anti-proliferative, antioxidant, anti-inflammatory, and estrogenic activities. Numerous cellular and animal-based studies show that flavonoids can function as antioxidants by preventing DNA damage and scavenging reactive oxygen radicals, inhibiting formation of DNA adducts, enhancing DNA repair, interfering with chemical damage by induction of Phase II enzymes, and modifying signaling pathways. Recent evidence also shows their ability to regulate the immune system. However, findings from clinical trials have been mixed with no clear consensus on dose, frequency, or type of flavonoids best suited to elicit many of the beneficial effects. Delivery of these bioactive compounds to their biological targets through "targeted designed" food processing strategies is critical to reach effective concentration in vivo. Thus, the identification of novel approaches that optimize flavonoid bioavailability is essential for their successful clinical application. In this review, we discuss the relevance of increasing flavonoid bioavailability, by agricultural engineering and "targeted food design" in the context of the immune system and cancer.
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Affiliation(s)
| | - Arti Parihar
- Department of Science, Bellingham Technical College, WA, 98225, USA
| | - Andrea I Doseff
- Department of Physiology and Department of Pharmacology & Toxicology, Michigan State University, MI, 48864, USA.
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33
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A method for visualizing fluorescence of flavonoid therapeutics in vivo in the model eukaryote Dictyostelium discoideum. Biotechniques 2019; 66:65-71. [DOI: 10.2144/btn-2018-0084] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Naturstoff reagent A (diphenylboric acid 2-aminoethyl ester [DPBA]) has been used historically in plant science to observe polyphenolic pigments, such as flavonoids, whose fluorescence requires enhancement to be visible by microscopy. Flavonoids are common dietary constituents and are the focus of considerable attention because of their potential as novel therapies for numerous diseases. The molecular basis of therapeutic activity is only gradually being established, and one strand of such research is making use of the social amoeba Dictyostelium discoideum. We extended the application of DPBA to flavonoid imaging in these preclinical studies, and report the first method for use of DPBA in this eukaryotic model microbe and its applicability alongside subcellular markers. This in vivo fluorescence imaging provided a useful adjunct to parallel chemical and genetic studies.
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Apigenin prevents metabolic syndrome in high-fructose diet-fed mice by Keap1-Nrf2 pathway. Biomed Pharmacother 2018; 105:1283-1290. [DOI: 10.1016/j.biopha.2018.06.108] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 06/04/2018] [Accepted: 06/18/2018] [Indexed: 01/06/2023] Open
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35
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Kashyap D, Sharma A, Tuli HS, Sak K, Garg VK, Buttar HS, Setzer WN, Sethi G. Apigenin: A natural bioactive flavone-type molecule with promising therapeutic function. J Funct Foods 2018. [DOI: 10.1016/j.jff.2018.07.037] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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36
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Zarei I, Brown DG, Nealon NJ, Ryan EP. Rice Bran Metabolome Contains Amino Acids, Vitamins & Cofactors, and Phytochemicals with Medicinal and Nutritional Properties. RICE (NEW YORK, N.Y.) 2017; 10:24. [PMID: 28547736 PMCID: PMC5453916 DOI: 10.1186/s12284-017-0157-2] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Accepted: 04/21/2017] [Indexed: 05/06/2023]
Abstract
BACKGROUND Rice bran is a functional food that has shown protection against major chronic diseases (e.g. obesity, diabetes, cardiovascular disease and cancer) in animals and humans, and these health effects have been associated with the presence of bioactive phytochemicals. Food metabolomics uses multiple chromatography and mass spectrometry platforms to detect and identify a diverse range of small molecules with high sensitivity and precision, and has not been completed for rice bran. RESULTS This study utilized global, non-targeted metabolomics to identify small molecules in rice bran, and conducted a comprehensive search of peer-reviewed literature to determine bioactive compounds. Three U.S. rice varieties (Calrose, Dixiebelle, and Neptune), that have been used for human dietary intervention trials, were assessed herein for bioactive compounds that have disease control and prevention properties. The profiling of rice bran by ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) and gas chromatography-mass spectrometry (GC-MS) identified 453 distinct phytochemicals, 209 of which were classified as amino acids, cofactors & vitamins, and secondary metabolites, and were further assessed for bioactivity. A scientific literature search revealed 65 compounds with health properties, 16 of which had not been previously identified in rice bran. This suite of amino acids, cofactors & vitamins, and secondary metabolites comprised 46% of the identified rice bran metabolome, which substantially enhanced our knowledge of health-promoting rice bran compounds provided during dietary supplementation. CONCLUSION Rice bran metabolite profiling revealed a suite of biochemical molecules that can be further investigated and exploited for multiple nutritional therapies and medical food applications. These bioactive compounds may also be biomarkers of dietary rice bran intake. The medicinal compounds associated with rice bran can function as a network across metabolic pathways and this metabolite network may occur via additive and synergistic effects between compounds in the food matrix.
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Affiliation(s)
- Iman Zarei
- Department of Environmental & Radiological Health Sciences, College of Veterinary Medicine and Biological Sciences, Colorado State University, 1680 Campus Delivery, Fort Collins, CO 80523 USA
- Institute of Human Nutrition and Food, College of Human Ecology, University of the Philippines Los Baños, Los Baños, 4031 Laguna Philippines
| | - Dustin G. Brown
- Department of Environmental & Radiological Health Sciences, College of Veterinary Medicine and Biological Sciences, Colorado State University, 1680 Campus Delivery, Fort Collins, CO 80523 USA
| | - Nora Jean Nealon
- Department of Environmental & Radiological Health Sciences, College of Veterinary Medicine and Biological Sciences, Colorado State University, 1680 Campus Delivery, Fort Collins, CO 80523 USA
| | - Elizabeth P. Ryan
- Department of Environmental & Radiological Health Sciences, College of Veterinary Medicine and Biological Sciences, Colorado State University, 1680 Campus Delivery, Fort Collins, CO 80523 USA
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Shankar E, Goel A, Gupta K, Gupta S. Plant flavone apigenin: An emerging anticancer agent. CURRENT PHARMACOLOGY REPORTS 2017; 3:423-446. [PMID: 29399439 PMCID: PMC5791748 DOI: 10.1007/s40495-017-0113-2] [Citation(s) in RCA: 88] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Research in cancer chemoprevention provides convincing evidence that increased intake of vegetables and fruits may reduce the risk of several human malignancies. Phytochemicals present therein provide beneficial anti-inflammatory and antioxidant properties that serve to improve the cellular microenvironment. Compounds known as flavonoids categorized anthocyanidins, flavonols, flavanones, flavonols, flavones, and isoflavones have shown considerable promise as chemopreventive agents. Apigenin (4', 5, 7-trihydroxyflavone), a major plant flavone, possessing antioxidant, anti-inflammatory, and anticancer properties affecting several molecular and cellular targets used to treat various human diseases. Epidemiologic and case-control studies have suggested apigenin reduces the risk of certain cancers. Studies demonstrate that apigenin retain potent therapeutic properties alone and/or increases the efficacy of several chemotherapeutic drugs in combination on a variety of human cancers. Apigenin's anticancer effects could also be due to its differential effects in causing minimal toxicity to normal cells with delayed plasma clearance and slow decomposition in liver increasing the systemic bioavailability in pharmacokinetic studies. Here we discuss the anticancer role of apigenin highlighting its potential activity as a chemopreventive and therapeutic agent. We also highlight the current caveats that preclude apigenin for its use in the human trials.
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Affiliation(s)
- Eswar Shankar
- Department of Urology, The James and Eilleen Dicke Laboratory, Case Western Reserve University, Cleveland, OH 44106, USA
- Department of Urology, The Urology Institute, University Hospitals Cleveland Medical Center, Cleveland, OH 44106, USA
| | - Aditi Goel
- Department of Biology, School of Undergraduate Studies, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Karishma Gupta
- Department of Urology, The James and Eilleen Dicke Laboratory, Case Western Reserve University, Cleveland, OH 44106, USA
- Department of Urology, The Urology Institute, University Hospitals Cleveland Medical Center, Cleveland, OH 44106, USA
| | - Sanjay Gupta
- Department of Urology, The James and Eilleen Dicke Laboratory, Case Western Reserve University, Cleveland, OH 44106, USA
- Department of Urology, The Urology Institute, University Hospitals Cleveland Medical Center, Cleveland, OH 44106, USA
- Department of Nutrition, Case Western Reserve University, Cleveland, OH 44106, USA
- Division of General Medical Sciences, Case Comprehensive Cancer Center, Cleveland, OH 44106, USA
- Department of Urology, Louis Stokes Cleveland Veterans Affairs Medical Center, Cleveland, OH 44106, USA
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Subhasitanont P, Chokchaichamnankit D, Chiablaem K, Keeratichamroen S, Ngiwsara L, Paricharttanakul NM, Lirdprapamongkol K, Weeraphan C, Svasti J, Srisomsap C. Apigenin inhibits growth and induces apoptosis in human cholangiocarcinoma cells. Oncol Lett 2017; 14:4361-4371. [PMID: 28943950 DOI: 10.3892/ol.2017.6705] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Accepted: 02/01/2017] [Indexed: 12/13/2022] Open
Abstract
A promising nutraceutical, apigenin, was recently revealed to exhibit biological activity in inhibiting several types of cancer. The effects of apigenin on the growth inhibition and apoptosis of the cholangiocarcinoma HuCCA-1 cell line were investigated. Protein alterations subsequent to apigenin treatment were studied using a proteomic approach. The values of 20, 50 and 90% inhibition of cell growth (IC20, IC50 and IC90) were determined by MTT cell viability assay. Apoptotic cell death was detected using two different methods, a flow cytometric analysis (Muse Cell Analyzer) and DNA fragmentation assay. A number of conditions including attached and detached cells were selected to perform two-dimensional gel electrophoresis (2-DE) to study the alterations in the expression levels of treated and untreated proteins and identified by liquid chromatography (LC)/tandem mass spectrometry (MS/MS). The IC20, IC50 and IC90 values of apigenin after 48 h treatment in HuCCA-1 cells were 25, 75 and 200 µM, respectively, indicating the cytotoxicity of this compound. Apigenin induced cell death in HuCCA-1 cells via apoptosis as detected by flow cytometric analysis and exhibited, as confirmed with DNA fragmentation, characteristics of apoptotic cells. A total of 67 proteins with altered expression were identified from the 2-DE analysis and LC/MS/MS. The cleavage of proteins involved in cytoskeletal, cytokeratin 8, 18 and 19, and high expression of S100-A6 and S100-A11 suggested that apoptosis was induced by apigenin via the caspase-dependent pathway. Notably, two proteins, heterogeneous nuclear ribonucleoprotein H and A2/B1, disappeared completely subsequent to treatment, suggesting the role of apigenin in inducing cell death. The present study indicated that apigenin demonstrates an induction of growth inhibition and apoptosis in cholangiocarcinoma cells and the apoptosis pathway was confirmed by proteomic analysis.
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Affiliation(s)
| | | | - Khajeelak Chiablaem
- Laboratory of Biochemistry, Chulabhorn Research Institute, Bangkok 10210, Thailand
| | | | - Lukana Ngiwsara
- Laboratory of Biochemistry, Chulabhorn Research Institute, Bangkok 10210, Thailand
| | | | | | - Churat Weeraphan
- Laboratory of Biochemistry, Chulabhorn Research Institute, Bangkok 10210, Thailand
| | - Jisnuson Svasti
- Laboratory of Biochemistry, Chulabhorn Research Institute, Bangkok 10210, Thailand.,Applied Biological Sciences Program, Chulabhorn Graduate Institute, Bangkok 10210, Thailand
| | - Chantragan Srisomsap
- Laboratory of Biochemistry, Chulabhorn Research Institute, Bangkok 10210, Thailand
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Naringin alleviates early brain injury after experimental subarachnoid hemorrhage by reducing oxidative stress and inhibiting apoptosis. Brain Res Bull 2017; 133:42-50. [DOI: 10.1016/j.brainresbull.2016.12.008] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Revised: 12/16/2016] [Accepted: 12/19/2016] [Indexed: 12/19/2022]
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40
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Jin M, Zhang X, Zhao M, Deng M, Du Y, Zhou Y, Wang S, Tohge T, Fernie AR, Willmitzer L, Brotman Y, Yan J, Wen W. Integrated genomics-based mapping reveals the genetics underlying maize flavonoid biosynthesis. BMC PLANT BIOLOGY 2017; 17:17. [PMID: 28100172 PMCID: PMC5242060 DOI: 10.1186/s12870-017-0972-z] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Accepted: 01/05/2017] [Indexed: 05/02/2023]
Abstract
BACKGROUND Flavonoids constitute a diverse class of secondary metabolites which exhibit potent bioactivities for human health and have been indicated to play an important role in plant development and defense. However, accumulation and variation of flavonoid content in diverse maize lines and the genes responsible for their biosynthesis in this important crop remain largely unknown. In this study, we combine genetic mapping, metabolite profiling and gene regulatory network analysis to further enhance understanding of the maize flavonoid pathway. RESULTS We repeatedly detected 25 QTL corresponding to 23 distinct flavonoids across different environments or populations. In addition, a total of 39 genes were revealed both by an expression based network analysis and genetic mapping. Finally, the function of three candidate genes, including two UDP-glycosyltransferases (UGT) and an oxygenase which belongs to the flavone synthase super family, was revealed via preliminary molecular functional characterization. CONCLUSION We explored the genetic influences on the flavonoid biosynthesis based on integrating the genomic, transcriptomic and metabolomic information which provided a rich source of potential candidate genes. The integrated genomics based genetic mapping strategy is highly efficient for defining the complexity of functional genetic variants and their respective regulatory networks as well as in helping to select candidate genes and allelic variance before embarking on laborious transgenic validations.
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Affiliation(s)
- Min Jin
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, 430070 China
| | - Xuehai Zhang
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, 430070 China
| | - Mingchao Zhao
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, 430070 China
| | - Min Deng
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, 430070 China
| | - Yuanhao Du
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, 430070 China
| | - Yang Zhou
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, 430070 China
| | - Shouchuang Wang
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, 430070 China
| | - Takayuki Tohge
- Max Planck Institute for Molecular Plant Physiology, 14476 Potsdam-Golm, Germany
| | - Alisdair R. Fernie
- Max Planck Institute for Molecular Plant Physiology, 14476 Potsdam-Golm, Germany
| | - Lothar Willmitzer
- Max Planck Institute for Molecular Plant Physiology, 14476 Potsdam-Golm, Germany
| | - Yariv Brotman
- Department of Life Sciences, Ben Gurion University of the Negev, Beersheva, Israel
| | - Jianbing Yan
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, 430070 China
| | - Weiwei Wen
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, 430070 China
- Max Planck Institute for Molecular Plant Physiology, 14476 Potsdam-Golm, Germany
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), Huazhong Agricultural University, Wuhan, 430070 China
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Sak K, Everaus H. Established Human Cell Lines as Models to Study Anti-leukemic Effects of Flavonoids. Curr Genomics 2016; 18:3-26. [PMID: 28503087 PMCID: PMC5321770 DOI: 10.2174/1389202917666160803165447] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Revised: 11/20/2015] [Accepted: 11/27/2015] [Indexed: 12/19/2022] Open
Abstract
Despite the extensive work on pathological mechanisms and some recent advances in the treatment of different hematological malignancies, leukemia continues to present a significant challenge being frequently considered as incurable disease. Therefore, the development of novel therapeutic agents with high efficacy and low toxicity is urgently needed to improve the overall survival rate of patients. In this comprehensive review article, the current knowledge about the anticancer activities of flavonoids as plant secondary polyphenolic metabolites in the most commonly used human established leukemia cell lines (HL-60, NB4, KG1a, U937, THP-1, K562, Jurkat, CCRF- CEM, MOLT-3, and MOLT-4) is compiled, revealing clear anti-proliferative, pro-apoptotic, cell cycle arresting, and differentiation inducing effects for certain compounds. Considering the low toxicity of these substances in normal blood cells, the presented data show a great potential of flavonoids to be developed into novel anti-leukemia agents applicable also in the malignant cells resistant to the current conventional chemotherapeutic drugs.
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Affiliation(s)
- Katrin Sak
- Department of Hematology and Oncology, University of Tartu, Tartu, Estonia
| | - Hele Everaus
- Department of Hematology and Oncology, University of Tartu, Tartu, Estonia
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Wang B, Zhao XH. Apigenin induces both intrinsic and extrinsic pathways of apoptosis in human colon carcinoma HCT-116 cells. Oncol Rep 2016; 37:1132-1140. [PMID: 27959417 DOI: 10.3892/or.2016.5303] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Accepted: 11/24/2016] [Indexed: 11/06/2022] Open
Abstract
Apigenin is one of the plant-originated flavones with anticancer activities. In this study, apigenin was assessed for its in vitro effects on a human colon carcinoma line (HCT‑116 cells) in terms of anti-proliferation, cell cycle progression arrest, apoptosis and intracellular reactive oxygen species (ROS) generation, and then outlined its possible apoptotic mechanism for the cells. Apigenin exerted cytotoxic effect on the cells via inhibiting cell growth in a dose-time-dependent manner and causing morphological changes, arrested cell cycle progression at G0/G1 phase, and decreased mitochondrial membrane potential of the treated cells. Apigenin increased respective ROS generation and Ca2+ release and thereby, caused ER stress in the treated cells. Apigenin shows apoptosis induction towards the cells, resulting in enhanced portion of apoptotic cells. A mechanism involved ROS generation and endoplasmic reticulum stress was outlined for the apigenin-mediated apoptosis via both intrinsic mitochondrial and extrinsic pathways, based on the assayed mRNA and protein expression levels in the cells. With this mechanism, apigenin resulted in the HCT-116 cells with enhanced intracellular ROS generation and Ca2+ release together with damaged mitochondrial membrane, and upregulated protein expression of CHOP, DR5, cleaved BID, Bax, cytochrome c, cleaved caspase-3, cleaved caspase-8 and cleaved caspase-9, which triggered apoptosis of the cells.
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Affiliation(s)
- Bo Wang
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin, Heilongjiang 150030, P.R. China
| | - Xin-Huai Zhao
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin, Heilongjiang 150030, P.R. China
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Synergistic effect of piperine and paclitaxel on cell fate via cyt-c, Bax/Bcl-2-caspase-3 pathway in ovarian adenocarcinomas SKOV-3 cells. Eur J Pharmacol 2016; 791:751-762. [PMID: 27756602 DOI: 10.1016/j.ejphar.2016.10.019] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2016] [Revised: 10/14/2016] [Accepted: 10/14/2016] [Indexed: 11/21/2022]
Abstract
BACKGROUND AND AIMS Ovarian cancer is fourth most common and lethal among all gynecologic malignancies. The chemotherapy usually requires in all stages of ovarian cancer but drugs have several side effects. We hypothesized that use of combination therapy of paclitaxel (PTX) and phytochemical piperine (PIP) may reduce the PTX dose as well as toxicity. The human ovarian adenocarcinomas SKOV3 cell treated with PTX-5nM and PIP-10µm after determination of IC50 by MTT assay. Reactive oxygen species generation, mitochondrial membrane potential (MMP), DNA damage, cell death pathway markers as release of cyt-c, Bax/Bcl2-caspase-3 and cell cycle arrest were analyzed. The dose dependent treatment of SKOV-3 cells showed IC50 and synergism at combination of 5nM-PTX and 10µm-PIP in cell viability assay. PTX and PIP increases the accumulation of reactive oxygen species which subsequently leading to increase in JC-1 and fragmented nuclei in mitotracker/DAPI staining. Comet assay showed 4.4-fold increase of tail formation in combined treated cells as compared to control. PTX-PIP arrests the cell cycle in sub-G1 phase. Immunocytochemistry of Bax showed increase in red fluorescence intensity whereas decrease in green fluorescence i.e Bax/Bcl-2 ratio increased. Moreover morphological EB/AO and Hoechst staining confirmed the enhanced apoptosis in combined treatment. Significant upregulation of apoptotic genes, cyt-c (3.4 fold) Bax (2.8 fold), caspase-3 (3.6 fold) whereas no change occurred in Bcl2 mRNA expression and protein expressions. The combination of PTX with PIP produces synergistic effects in SKOV-3 cells via the modulation of pro and anti-apoptotic gene and may compensate the toxicity and side effects of PTX.
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44
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Ali F, Rahul, Naz F, Jyoti S, Siddique YH. Health functionality of apigenin: A review. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2016. [DOI: 10.1080/10942912.2016.1207188] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Preparation, in-vitro release and antioxidant potential of formulation of apigenin with hydroxypropyl-β-cyclodextrin modified microemulsion. J INCL PHENOM MACRO 2016. [DOI: 10.1007/s10847-016-0644-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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46
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Das J, Ramani R, Suraju MO. Polyphenol compounds and PKC signaling. Biochim Biophys Acta Gen Subj 2016; 1860:2107-21. [PMID: 27369735 DOI: 10.1016/j.bbagen.2016.06.022] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2016] [Revised: 06/01/2016] [Accepted: 06/26/2016] [Indexed: 12/17/2022]
Abstract
BACKGROUND Naturally occurring polyphenols found in food sources provide huge health benefits. Several polyphenolic compounds are implicated in the prevention of disease states, such as cancer. One of the mechanisms by which polyphenols exert their biological actions is by interfering in the protein kinase C (PKC) signaling pathways. PKC belongs to a superfamily of serine-threonine kinase and are primarily involved in phosphorylation of target proteins controlling activation and inhibition of many cellular processes directly or indirectly. SCOPE OF REVIEW Despite the availability of substantial literature data on polyphenols' regulation of PKC, no comprehensive review article is currently available on this subject. This article reviews PKC-polyphenol interactions and its relevance to various disease states. In particular, salient features of polyphenols, PKC, interactions of naturally occurring polyphenols with PKC, and future perspective of research on this subject are discussed. MAJOR CONCLUSIONS Some polyphenols exert their antioxidant properties by regulating the transcription of the antioxidant enzyme genes through PKC signaling. Regulation of PKC by polyphenols is isoform dependent. The activation or inhibition of PKC by polyphenols has been found to be dependent on the presence of membrane, Ca(2+) ion, cofactors, cell and tissue types etc. Two polyphenols, curcumin and resveratrol are in clinical trials for the treatment of colon cancer. GENERAL SIGNIFICANCE The fact that 74% of the cancer drugs are derived from natural sources, naturally occurring polyphenols or its simple analogs with improved bioavailability may have the potential to be cancer drugs in the future.
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Affiliation(s)
- Joydip Das
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, TX 77204, United States.
| | - Rashmi Ramani
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, TX 77204, United States
| | - M Olufemi Suraju
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, TX 77204, United States
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47
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Jiang N, Doseff AI, Grotewold E. Flavones: From Biosynthesis to Health Benefits. PLANTS (BASEL, SWITZERLAND) 2016; 5:E27. [PMID: 27338492 PMCID: PMC4931407 DOI: 10.3390/plants5020027] [Citation(s) in RCA: 149] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Revised: 06/15/2016] [Accepted: 06/16/2016] [Indexed: 12/20/2022]
Abstract
Flavones correspond to a flavonoid subgroup that is widely distributed in the plants, and which can be synthesized by different pathways, depending on whether they contain C- or O-glycosylation and hydroxylated B-ring. Flavones are emerging as very important specialized metabolites involved in plant signaling and defense, as well as key ingredients of the human diet, with significant health benefits. Here, we appraise flavone formation in plants, emphasizing the emerging theme that biosynthesis pathway determines flavone chemistry. Additionally, we briefly review the biological activities of flavones, both from the perspective of the functions that they play in biotic and abiotic plant interactions, as well as their roles as nutraceutical components of the human and animal diet.
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Affiliation(s)
- Nan Jiang
- Center for Applied Plant Sciences, The Ohio State University, Columbus, OH 43210, USA.
- Department of Molecular Genetics, The Ohio State University, Columbus, OH 43210, USA.
| | - Andrea I Doseff
- Department of Molecular Genetics, The Ohio State University, Columbus, OH 43210, USA.
- Department of Physiology and Cell Biology, 305B Heart and Lung Research Institute, The Ohio State University, Columbus, OH 43210, USA.
| | - Erich Grotewold
- Center for Applied Plant Sciences, The Ohio State University, Columbus, OH 43210, USA.
- Department of Molecular Genetics, The Ohio State University, Columbus, OH 43210, USA.
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48
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Cardenas H, Arango D, Nicholas C, Duarte S, Nuovo GJ, He W, Voss OH, Gonzalez-Mejia ME, Guttridge DC, Grotewold E, Doseff AI. Dietary Apigenin Exerts Immune-Regulatory Activity in Vivo by Reducing NF-κB Activity, Halting Leukocyte Infiltration and Restoring Normal Metabolic Function. Int J Mol Sci 2016; 17:323. [PMID: 26938530 PMCID: PMC4813185 DOI: 10.3390/ijms17030323] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Revised: 02/16/2016] [Accepted: 02/16/2016] [Indexed: 12/31/2022] Open
Abstract
The increasing prevalence of inflammatory diseases and the adverse effects associated with the long-term use of current anti-inflammatory therapies prompt the identification of alternative approaches to reestablish immune balance. Apigenin, an abundant dietary flavonoid, is emerging as a potential regulator of inflammation. Here, we show that apigenin has immune-regulatory activity in vivo. Apigenin conferred survival to mice treated with a lethal dose of Lipopolysaccharide (LPS) restoring normal cardiac function and heart mitochondrial Complex I activity. Despite the adverse effects associated with high levels of splenocyte apoptosis in septic models, apigenin had no effect on reducing cell death. However, we found that apigenin decreased LPS-induced apoptosis in lungs, infiltration of inflammatory cells and chemotactic factors’ accumulation, re-establishing normal lung architecture. Using NF-κB luciferase transgenic mice, we found that apigenin effectively modulated NF-κB activity in the lungs, suggesting the ability of dietary compounds to exert immune-regulatory activity in an organ-specific manner. Collectively, these findings provide novel insights into the underlying immune-regulatory mechanisms of dietary nutraceuticals in vivo.
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Affiliation(s)
- Horacio Cardenas
- Department of Physiology and Cell Biology, the Heart and Lung Research Institute, the Ohio State University, Columbus, OH 43210, USA.
- Department of Molecular Genetics, the Ohio State University, Columbus, OH 43210, USA.
| | - Daniel Arango
- Department of Physiology and Cell Biology, the Heart and Lung Research Institute, the Ohio State University, Columbus, OH 43210, USA.
- Department of Molecular Genetics, the Ohio State University, Columbus, OH 43210, USA.
- Molecular Cellular and Developmental Biology Graduate Program, the Ohio State University, Columbus, OH 43210, USA.
| | - Courtney Nicholas
- Department of Physiology and Cell Biology, the Heart and Lung Research Institute, the Ohio State University, Columbus, OH 43210, USA.
- Department of Molecular Genetics, the Ohio State University, Columbus, OH 43210, USA.
- Molecular Cellular and Developmental Biology Graduate Program, the Ohio State University, Columbus, OH 43210, USA.
| | - Silvia Duarte
- Department of Physiology and Cell Biology, the Heart and Lung Research Institute, the Ohio State University, Columbus, OH 43210, USA.
- Department of Molecular Genetics, the Ohio State University, Columbus, OH 43210, USA.
- Nutrition Graduate Program, the Ohio State University, Columbus, OH 43210, USA.
| | - Gerard J Nuovo
- Comprehensive Cancer Center, the Ohio State University, Columbus, OH 43210, USA.
| | - Wei He
- Molecular Cellular and Developmental Biology Graduate Program, the Ohio State University, Columbus, OH 43210, USA.
- Comprehensive Cancer Center, the Ohio State University, Columbus, OH 43210, USA.
| | - Oliver H Voss
- Department of Molecular Genetics, the Ohio State University, Columbus, OH 43210, USA.
| | - M Elba Gonzalez-Mejia
- Department of Physiology and Cell Biology, the Heart and Lung Research Institute, the Ohio State University, Columbus, OH 43210, USA.
- Department of Molecular Genetics, the Ohio State University, Columbus, OH 43210, USA.
| | - Denis C Guttridge
- Comprehensive Cancer Center, the Ohio State University, Columbus, OH 43210, USA.
| | - Erich Grotewold
- Department of Molecular Genetics, the Ohio State University, Columbus, OH 43210, USA.
- Center for Applied Plant Sciences, the Ohio State University, Columbus, OH 43210, USA.
| | - Andrea I Doseff
- Department of Physiology and Cell Biology, the Heart and Lung Research Institute, the Ohio State University, Columbus, OH 43210, USA.
- Department of Molecular Genetics, the Ohio State University, Columbus, OH 43210, USA.
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Andueza A, García-Garzón A, Ruiz de Galarreta M, Ansorena E, Iraburu MJ, López-Zabalza MJ, Martínez-Irujo JJ. Oxidation pathways underlying the pro-oxidant effects of apigenin. Free Radic Biol Med 2015; 87:169-80. [PMID: 26119779 DOI: 10.1016/j.freeradbiomed.2015.06.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Revised: 05/22/2015] [Accepted: 06/17/2015] [Indexed: 10/23/2022]
Abstract
Apigenin, a natural flavone, is emerging as a promising compound for the treatment of several diseases. One of the hallmarks of apigenin is the generation of intracellular reactive oxygen species (ROS), as judged by the oxidation of reduced dichlorofluorescein derivatives seen in many cell types. This study aimed to reveal some mechanisms by which apigenin can be oxidized and how apigenin-derived radicals affect the oxidation of 5-(and-6)-chloromethyl-2',7'-dichlorodihydrofluorescein (H(2)DCF), a probe usually employed to detect intracellular ROS. Apigenin induced a rapid oxidation of H(2)DCF in two different immortalized cell lines derived from rat and human hepatic stellate cells. However, apigenin did not generate ROS in these cells, as judged by dihydroethidium oxidation and extracellular hydrogen peroxide production. In cell-free experiments we found that oxidation of apigenin leads to the generation of a phenoxyl radical, which directly oxidizes H(2)DCF with catalytic amounts of hydrogen peroxide. The net balance of the reaction was the oxidation of the probe by molecular oxygen due to redox cycling of apigenin. This flavonoid was also able to deplete NADH and glutathione by a similar mechanism. Interestingly, H(2)DCF oxidation was significantly accelerated by apigenin in the presence of horseradish peroxidase and xanthine oxidase, but not with other enzymes showing peroxidase-like activity, such as cytochrome c or catalase. We conclude that in cells treated with apigenin oxidation of reduced dichlorofluorescein derivatives does not measure intracellular ROS and that pro- and antioxidant effects of flavonoids deduced from these experiments are inconclusive and must be confirmed by other techniques.
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Affiliation(s)
- Aitor Andueza
- Department of Biochemistry and Genetics, University of Navarra, 31008 Pamplona, Spain
| | - Antonia García-Garzón
- Department of Biochemistry and Genetics, University of Navarra, 31008 Pamplona, Spain
| | | | - Eduardo Ansorena
- Department of Biochemistry and Genetics, University of Navarra, 31008 Pamplona, Spain
| | - María J Iraburu
- Department of Biochemistry and Genetics, University of Navarra, 31008 Pamplona, Spain
| | - María J López-Zabalza
- Department of Biochemistry and Genetics, University of Navarra, 31008 Pamplona, Spain
| | - Juan J Martínez-Irujo
- Department of Biochemistry and Genetics, University of Navarra, 31008 Pamplona, Spain.
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Mishra S, Vinayak M. Role of ellagic acid in regulation of apoptosis by modulating novel and atypical PKC in lymphoma bearing mice. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2015; 15:281. [PMID: 26276710 PMCID: PMC4536603 DOI: 10.1186/s12906-015-0810-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Accepted: 08/07/2015] [Indexed: 12/15/2022]
Abstract
Background Protein kinase C regulates various cellular processes including cell proliferation, cell adhesion, apoptosis, angiogenesis, invasion, and metastasis. Activation of different PKC isozymes results in distinct cellular responses. Novel PKCs are mainly involved in apoptotic process. Atypical PKC subfamily plays a critical role in cell proliferation and apoptosis, cell differentiation and motility. However, Atypical PKCs show contradictory regulation in different tissues or cancer cells. The mechanism of diversified effects is not well explored. Antioxidant ellagic acid shows hepatoprotective, anti-carcinogenic and anti-mutagenic properties. Present study is focused to analyze the effect of ellagic acid on novel and atypical isozymes of PKC in regulation of PKC-mediated apoptosis in liver of lymphoma bearing mice. Implication of ellagic acid treatment to DL mice was analyzed on caspase-3 mediated apoptosis via PKCδ induced activation; and on maintenance of adequate supply of energy during cancer growth. Methods 15–20 weeks old adult DL mice were divided into four groups (n = 6). Group 2, 3, 4 were treated with different doses of ellagic acid (40 mg/kg, 60 mg/kg and 80 mg/kg bw). The mice were sacrificed after 19 days of treatment and liver was used for study. The effect of ellagic acid was determined on expression of novel and atypical PKC isozymes. Apoptotic potentiality of ellagic acid was checked on activities of caspase-3 and PKCδ in terms of their catalytic fragments. Aerobic glycolysis was monitored by LDH activity, especially activity of LDH A. Results Ellagic acid treatment caused up regulation of expression of almost all novel and atypical PKC isozymes. Activities of PKCδ and caspase-3 were enhanced by ellagic acid, however activities of total LDH and LDH-A were inhibited. Conclusion The results show that ellagic acid promotes apoptosis in lymphoma bearing mice via novel and atypical PKCs which involves PKCδ induced caspase-3 activation; and inhibition of glycolytic pathway.
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