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Liu Y, Wang W, Di B, Miao J. Curcumol ameliorates neuroinflammation after cerebral ischemia-reperfusion injury via affecting microglial polarization and Treg/Th17 balance through Nrf2/HO-1 and NF-κB signaling. Cell Death Discov 2024; 10:300. [PMID: 38914581 PMCID: PMC11196256 DOI: 10.1038/s41420-024-02067-3] [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: 09/07/2023] [Revised: 06/07/2024] [Accepted: 06/12/2024] [Indexed: 06/26/2024] Open
Abstract
Neuroinflammation caused by microglia and other immune cells plays pivotal role in cerebral ischemia/reperfusion injury and recovery. Modulating microglial polarization or Treg/Th17 balance from pro-inflammatory phenotype to anti-inflammatory phenotype are promising strategies for the treatment of cerebral ischemia. Curcumol has potential to fight against oxidative stress and inflammation, but whether it has protective effect in cerebral ischemia is uncertain. In the present study, cerebral ischemia was induced in C57BL/6 mice via middle cerebral artery occlusion (MCAO). MCAO mice were treated with curcumol for 7 days, then post-stroke ischemic injury, neurological deficits, microglial polarization and brain leukocyte infiltration were evaluated by TTC staining, behavioural tests, flow cytometry, western blot and immunofluorescence. We found that poststroke administration of curcumol reduced infarct volume, attenuated neuronal damage and inflammation, and improved motor function recovery of MCAO mice. Curcumol skewed microglial polarization toward anti-inflammatory phenotype in MCAO mice in vivo or after oxygen-glucose deprivation and reoxygenation (OGD/R) in vitro. In addition, curcumol reduced local T cell infiltration in ischemic brain of MCAO mice and impaired Treg/Th17 balance. Curcumol inhibited ROS production and regulated Nrf2/HO-1 and NF-κB signaling in microglia. Finally, inhibiting Nrf2/HO-1 signaling or activating NF-κB signaling abrogated the influence of curcumol on microglial polarization. In conclusion, curcumol treatment reduced brain damage and neuroinflammation via modulating anti-inflammatory microglial polarization and Treg/Th17 balance through Nrf2/HO-1 and NF-κB signaling. Curcumol might be a promising treatment strategy for stroke patients.
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Affiliation(s)
- Ying Liu
- Department of Neurology, Second Hospital of Hebei Medical University, Shijiazhuang, 050000, Hebei, China
| | - Wen Wang
- Department of Neurology, Second Hospital of Hebei Medical University, Shijiazhuang, 050000, Hebei, China
| | - Bohan Di
- Department of Neurology, Second Hospital of Hebei Medical University, Shijiazhuang, 050000, Hebei, China
| | - Jiangyong Miao
- Department of Neurology, Second Hospital of Hebei Medical University, Shijiazhuang, 050000, Hebei, China.
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Zhai S, Wang R, Wang J, Xu X, Niu L, Guo M, Zhang Y, Shi Y, Tang X. Curcumol: a review of its pharmacology, pharmacokinetics, drug delivery systems, structure-activity relationships, and potential applications. Inflammopharmacology 2024; 32:1659-1704. [PMID: 38520574 DOI: 10.1007/s10787-024-01447-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 02/16/2024] [Indexed: 03/25/2024]
Abstract
Curcumol (Cur), a guaiane-type sesquiterpenoid hemiketal, is an important and representative bioactive component extracted from the essential oil of the rhizomes of Curcumae rhizoma which is also known as "Ezhu" in traditional Chinese medicine. Recently, Cur has received considerable attention from the research community due to its favorable pharmacological activities, including anti-cancer, hepatoprotective, anti-inflammatory, anti-viral, anti-convulsant, and other activities, and has also exerted therapeutic effect on various cancers, liver diseases, inflammatory diseases, and infectious diseases. Pharmacokinetic studies have shown that Cur is rapidly distributed in almost all organs of rats after intragastric administration with high concentrations in the small intestine and colon. Several studies focusing on structure-activity relationship (SAR) of Cur have shown that some Cur derivatives, chemically modified at C-8 or C-14, exhibited more potent anti-cancer activity and lower toxicity than Cur itself. This review aims to comprehensively summarize the latest advances in the pharmacological and pharmacokinetic properties of Cur in the last decade with a focus on its anti-cancer and hepatoprotective potentials, as well as the research progress in drug delivery system and potential applications of Cur to date, to provide researchers with the latest information, to highlighted the limitations of relevant research at the current stage and the aspects that should be addressed in future research. Our results indicate that Cur and its derivatives could serve as potential novel agents for the treatment of a variety of diseases, particularly cancer and liver diseases.
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Affiliation(s)
- Sicheng Zhai
- School of Medical Engineering, Haojing College of Shaanxi University of Science & Technology, Tongyi Avenue, Xi Xian New District, Xianyang City, 712046, Shaanxi Province, People's Republic of China
| | - Rui Wang
- School of Medical Engineering, Haojing College of Shaanxi University of Science & Technology, Tongyi Avenue, Xi Xian New District, Xianyang City, 712046, Shaanxi Province, People's Republic of China
| | - Jingyuan Wang
- Key Laboratory of Basic and New Drug Research in Chinese Medicine, School of Pharmacy, Shaanxi University of Chinese Medicine, Shiji Avenue, Xi Xian New District, Xianyang City, 712046, Shaanxi Province, People's Republic of China
| | - Xiangdong Xu
- School of Medical Engineering, Haojing College of Shaanxi University of Science & Technology, Tongyi Avenue, Xi Xian New District, Xianyang City, 712046, Shaanxi Province, People's Republic of China
| | - Le Niu
- School of Medical Engineering, Haojing College of Shaanxi University of Science & Technology, Tongyi Avenue, Xi Xian New District, Xianyang City, 712046, Shaanxi Province, People's Republic of China
| | - Min Guo
- School of Medical Engineering, Haojing College of Shaanxi University of Science & Technology, Tongyi Avenue, Xi Xian New District, Xianyang City, 712046, Shaanxi Province, People's Republic of China
| | - Yongling Zhang
- School of Medical Engineering, Haojing College of Shaanxi University of Science & Technology, Tongyi Avenue, Xi Xian New District, Xianyang City, 712046, Shaanxi Province, People's Republic of China
| | - Yajun Shi
- Key Laboratory of Basic and New Drug Research in Chinese Medicine, School of Pharmacy, Shaanxi University of Chinese Medicine, Shiji Avenue, Xi Xian New District, Xianyang City, 712046, Shaanxi Province, People's Republic of China.
| | - Xuexue Tang
- School of Medical Engineering, Haojing College of Shaanxi University of Science & Technology, Tongyi Avenue, Xi Xian New District, Xianyang City, 712046, Shaanxi Province, People's Republic of China.
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Song Z, Li W, He Q, Xie X, Wang X, Guo J. Natural products - Dawn of keloid treatment. Fitoterapia 2024; 175:105918. [PMID: 38554887 DOI: 10.1016/j.fitote.2024.105918] [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: 09/20/2023] [Revised: 03/15/2024] [Accepted: 03/23/2024] [Indexed: 04/02/2024]
Abstract
Keloids are prevalent pathological scars, often leading to cosmetic deformities and hindering joint mobility.They cause discomfort, including burning and itching, while gradually expanding and potentially posing a risk of cancer.Developing effective drugs and treatments for keloids has been a persistent challenge in the medical field. Natural products are an important source of innovative drugs and a breakthrough for many knotty disease.Herein, keywords of "natural, plant, compound, extract" were combined with "keloid" and searched in PubMed and Google Scholar, respectively. A total of 32 natural products as well as 9 extracts possessing the potential for treating keloids were ultimately identified.Current research in this field faces a significant challenge due to the lack of suitable animal models, resulting in a predominant reliance on in vitro studies.In vivo and clinical studies are notably scarce as a result.Moreover, there is a notable deficiency in research focusing on the role of nutrients in keloid formation and treatment.The appropriate dosage form (oral, topical, injectable) is crucial for the development of natural product drugs. Finally, the conclusion was hereby made that natural products, when used as adjuncts to other treatments, hold significant potential in the management of keloids.By summarizing the natural products and elucidating their mechanisms in keloid treatment, the present study aims to stimulate further discoveries and research in drug development for effectively addressing this challenging condition.
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Affiliation(s)
- Zongzhou Song
- Department of Dermatological, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610036, China
| | - Wenquan Li
- Department of Dermatological, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610036, China
| | - Qingying He
- Department of Dermatological, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610036, China
| | - Xin Xie
- Department of Dermatological, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610036, China
| | - Xurui Wang
- Department of Dermatological, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610036, China
| | - Jing Guo
- Department of Dermatological, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610036, China.
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Wu Y, Tang H, Liao Q, Tu Y, Fang S, He J, Cui S. Curcumol Inhibits the Progression of Hepatocellular Carcinoma by Regulating the Expression of hsa_circ_0028861. Cancer Biother Radiopharm 2024; 39:203-210. [PMID: 38181186 DOI: 10.1089/cbr.2023.0061] [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: 01/07/2024] Open
Abstract
Background: Hsa_circ_0028861, a newly discovered serum exosome circular RNA (circRNA), is greatly reduced in the serum of patients with hepatocellular carcinoma (HCC). However, the exact role of hsa_circ_0028861 in the progression of liver cancer is still unknown. Materials and Methods: Thirty patients with HCC were enrolled in this study. Hsa_circ_0028861 expression was explored via real-time polymerase chain reaction (PCR) assay. The influence of curcumol on HCC cells were tested using CCK-8 assay, 5-ethynyl-2'-deoxyuridine (EdU) staining, cell wound healing assay, and migration assay, respectively. The related mechanism was determined by Western blot. A xenograft tumor model was constructed, and mice were administrated with curcumol. Results: The expression of hsa_circ_0028861 in tumor tissues was elevated of patients with HCC and in HCC cells. Curcumol treatment decreased the expression of hsa_circ_0028861 in HCC cells. Curcumol treatment could largely suppress the viability, proliferation, and migration of HCC cells by reducing hsa_circ_0028861 expression and mediating the epithelial-mesenchymal transition (EMT) process. Curcumol also effectively restrained tumor growth in the HCC mice model. Conclusions: Curcumol exerted an inhibitory role in HCC progression by downregulating hsa_circ_0028861 expression and mediating the EMT process, which provides evidence for screening new therapeutic targets and drug therapies for HCC treatment.
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Affiliation(s)
- Yinbing Wu
- Department of Hepatobiliary Surgery, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, People's Republic of China
| | - Huafei Tang
- Department of Hepatobiliary Surgery, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, People's Republic of China
| | - Quanxing Liao
- Department of Hepatobiliary Surgery, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, People's Republic of China
| | - Yinuo Tu
- Department of Hepatobiliary Surgery, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, People's Republic of China
| | - Shuxian Fang
- Department of Hepatobiliary Surgery, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, People's Republic of China
| | - Jinfu He
- Department of Hepatobiliary Surgery, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, People's Republic of China
| | - Shuzhong Cui
- Department of Hepatobiliary Surgery, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, People's Republic of China
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Beltagy DM, Nawar NF, Mohamed TM, Tousson E, El-Keey MM. The synergistic effect of nanocurcumin and donepezil on Alzheimer's via PI3K/AKT/GSK-3β pathway modulating. Prostaglandins Other Lipid Mediat 2024; 170:106791. [PMID: 37918555 DOI: 10.1016/j.prostaglandins.2023.106791] [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: 09/14/2023] [Revised: 10/23/2023] [Accepted: 10/27/2023] [Indexed: 11/04/2023]
Abstract
Alzheimer's disease (AD) hallmarks include amyloid-βeta (Aβ) and tau proteins aggregates, neurite degeneration, microglial activation with cognitive impairment. Phosphatidylinositol-3-kinase/protein kinase B/Glycogen synthase kinase-3-beta (PI3K/AKT/GSK-3) pathway is essential for neuroprotection, cell survival and proliferation by blocking apoptosis. This study aimed to assess protective role of nanocurcumin (NCMN) as strong antioxidant and anti-inflammatory agent with elucidating its synergistic effects with Donepezil as acetylcholinesterase inhibitor on AD in rats via modulating PI3K/AKT/GSK-3β pathway. The experiment was performed on 70 male Wistar albino rats divided into seven groups (control, NCMN, Donepezil, AD-model, Donepezil co-treatment, NCMN only co-treatment, and NCMN+Donepezil combined treatment). Behavioral and biochemical investigations as cholinesterase activity, oxidative stress (malondialdehyde, reduced glutathione, nitric oxide, superoxidedismutase, and catalase), tumor necrosis factor-alpha, Tau, β-site amyloid precursor protein cleaving enzyme-1 (BACE-1), Phosphatase and tensin homolog (Pten), mitogen-activated protein kinase-1 (MAPK-1), Glycogen synthase kinase-3-beta (GSK-3β) and toll-like receptor-4 were evaluated. Treatment with NCMN improved memory, locomotion, neuronal differentiation by activating PI3K/AKT/GSK-3β pathway. These results were confirmed by histological studies in hippocampus.
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Affiliation(s)
- Doha M Beltagy
- Biochemistry Department, Faculty of Science, Damanhour University, Egypt.
| | - Nagat F Nawar
- Biochemistry Division, Chemistry Department, Faculty of Science, Tanta University, Egypt
| | - Tarek M Mohamed
- Biochemistry Division, Chemistry Department, Faculty of Science, Tanta University, Egypt
| | - Ehab Tousson
- Department of Zoology, Faculty of Science, Tanta University, Egypt
| | - Mai M El-Keey
- Biochemistry Division, Chemistry Department, Faculty of Science, Tanta University, Egypt
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Curcumenol Targeting YWHAG Inhibits the Pentose Phosphate Pathway and Enhances Antitumor Effects of Cisplatin. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2022; 2022:3988916. [PMID: 35795276 PMCID: PMC9251105 DOI: 10.1155/2022/3988916] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 06/06/2022] [Accepted: 06/07/2022] [Indexed: 12/26/2022]
Abstract
Objective Cervical cancer is a common cancer in women. The drug resistance of chemotherapeutic agents has always been an urgent problem to be solved in clinics. The purpose of this study was to determine the role of tyrosine 3-monooxygenase/tryptophan 5-monooxygenase activation protein gamma polypeptide (YWHAG) in cervical cancer and explore the effect of Curcuma on cervical cancer and its possible mechanism. Methods YWHAG expression in cervical cancer was confirmed using The Cancer Genome Atlas (TCGA) database. Then, the effects of YWHAG on the proliferation and invasion of HeLa and C33A cervical cancer cells were detected by the cell counting kit-8 (CCK-8) and transwell assay. The relationship between YWHAG and the pentose phosphorylation pathway was further studied. CCK-8, Edu, and quantitative real-time polymerase chain reaction were used to confirm that Curcuma inhibited the sensitivity of YWHAG to cisplatin chemotherapy and to detect the expression of apoptosis-related proteins. Results YWHAG was highly expressed in cervical cancer and was associated with poor prognosis. The proliferation and invasion abilities of HeLa and C33A cells decreased after YWHAG knockout. The TCGA database of cervical cancer showed a positive correlation between YWHAG and hypoxia-inducible factor-1 subunit alpha (HIF-1α) expression. YWHAG expression increased with HIF-1α overexpression. YWHAG knockdown reduced the protein expression in the pentose phosphorylation pathway. Curcumenol inhibited YWHAG expression. Compared with cisplatin alone, curcumenol combined with cisplatin can reduce cell proliferation and invasion and reduce matrix metalloproteinase (MMP) 2 and MMP9 expression. It can also increase apoptosis, decrease B cell lymphoma 2 (Bcl-2) expression, and increase the expression of Bcl-2 antagonist X, caspase-3, and polyadenosine diphosphate-ribose polymerase. Conclusion YWHAG can interact with HIF-1α to affect the proliferation and invasion of cervical cancer cells. YWHAG knockout can reduce the expression of pentose phosphorylation pathway-related proteins. Curcumenol can enhance cisplatin to inhibit cancer cell proliferation, migration, and invasion and promote tumor cell apoptosis. The combination of drugs may promote the apoptosis of cervical cancer cells through the YWHAG pathway.
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Muto NA, Hamoy M, da Silva Ferreira CB, Hamoy AO, Lucas DCR, de Mello VJ, Rogez H. Extract of Euterpe oleracea Martius Stone Presents Anticonvulsive Activity via the GABAA Receptor. Front Cell Neurosci 2022; 16:872743. [PMID: 35634465 PMCID: PMC9130464 DOI: 10.3389/fncel.2022.872743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 04/12/2022] [Indexed: 11/13/2022] Open
Abstract
Epilepsy is one of the most common neurological diseases globally, resulting from a disorder in brain activity. This condition can be triggered by birth trauma, traumatic brain injury (TBI), infections of the brain and stroke. More than 70 million people suffer seizures caused by neurological abnormalities. Approximately 80% of all epileptic patients reside in low-income conditions or in developing countries, and over 75% of patients do not receive proper treatment. Our previous study found an anticonvulsant property of an extract of Euterpe oleracea stone (EEOS) that caused myorelaxation, sedation, and cardiac and respiratory depression after intraperitoneal administration. The present study investigated through electroencephalographic (EEG) profiling the anticonvulsant protective properties of EEOS in induced convulsing rats. Male Wistar rats were treated with EEOS (300 mg/kg), diazepam (DZP) (5 mg/kg), pentylenetetrazol (PTZ) (60 mg/kg) and flumazenil (FMZ) (0.1 mg/kg) by intraperitoneal (i.p.). Electrodes implanted on the dura mater provided EEG data in which EEOS suppressed seizure deflagration caused by PTZ. In addition, EEOS presented no significant difference in comparison to DZP, which has the same mechanism of action. After FMZ injection, a GABAA receptor antagonist blocked the anticonvulsive effect in both the DZP and EEOS groups, suggesting that EEOS exerts it action on the GABAA receptor at the benzodiazepine (BDZ) subunit.
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Affiliation(s)
- Nilton Akio Muto
- Centre for Valorization of Amazonian Bioactive Compounds (CVACBA), Federal University of Pará (UFPA), Belém, Brazil
| | - Moisés Hamoy
- Laboratory of Pharmacology and Toxicology of Natural Products, Institute of Biological Sciences of Federal University of Pará (ICB-UFPA), Belém, Brazil
| | - Chryslen Brenda da Silva Ferreira
- Laboratory of Pharmacology and Toxicology of Natural Products, Institute of Biological Sciences of Federal University of Pará (ICB-UFPA), Belém, Brazil
| | - Akira Otake Hamoy
- Laboratory of Pharmacology and Toxicology of Natural Products, Institute of Biological Sciences of Federal University of Pará (ICB-UFPA), Belém, Brazil
| | | | - Vanessa Jóia de Mello
- Laboratory of Pharmacology and Toxicology of Natural Products, Institute of Biological Sciences of Federal University of Pará (ICB-UFPA), Belém, Brazil
| | - Hervé Rogez
- Centre for Valorization of Amazonian Bioactive Compounds (CVACBA), Federal University of Pará (UFPA), Belém, Brazil
- *Correspondence: Hervé Rogez,
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Darbinyan LV, Simonyan KV, Hambardzumyan LE, Manukyan LP, Badalyan SH, Sarkisian VH. Protective effect of curcumin against rotenone-induced substantia nigra pars compacta neuronal dysfunction. Metab Brain Dis 2022; 37:1111-1118. [PMID: 35239141 DOI: 10.1007/s11011-022-00941-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 02/21/2022] [Indexed: 01/07/2023]
Abstract
Rotenone is involved in the degeneration of dopaminergic neurons, and curcumin may prevent or effectively slow the progression of Parkinson's disease (PD). Previous research has shown that the naturally occurring phenolic compound curcumin can reduce inflammation and oxidation, making it a potential therapeutic agent for neurodegenerative diseases. The present study involves investigation of rotenone-induced histological changes in the brain area, hippocampus using Nissl staining after 35 day of subcutaneous injection of rotenone in adult male rats. We sought to determine whether curcumin could protect against rotenone-induced dopaminergic neurotoxicity in a rat model by in vivo electrical recording from Substantia nigra pars compacta (SNc). Curcumin treatment significantly improved electrical activity of neurons in the SNc of rotenone-induced PD model rats. The pattern of histological alterations corresponds with electrophysiological manifestations.
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Affiliation(s)
- L V Darbinyan
- Sensorimotor Integration Laboratory, Orbeli Institute of Physiology NAS RA, 0028, Yerevan, Armenia
| | - K V Simonyan
- Neuroendocrine Relationships Laboratory, Orbeli Institute of Physiology NAS RA, 0028, Yerevan, Armenia.
| | - L E Hambardzumyan
- Sensorimotor Integration Laboratory, Orbeli Institute of Physiology NAS RA, 0028, Yerevan, Armenia
| | - L P Manukyan
- Sensorimotor Integration Laboratory, Orbeli Institute of Physiology NAS RA, 0028, Yerevan, Armenia
| | - S H Badalyan
- Sensorimotor Integration Laboratory, Orbeli Institute of Physiology NAS RA, 0028, Yerevan, Armenia
| | - V H Sarkisian
- Sensorimotor Integration Laboratory, Orbeli Institute of Physiology NAS RA, 0028, Yerevan, Armenia
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Curcumol inhibits malignant biological behaviors and TMZ-resistance in glioma cells by inhibiting long noncoding RNA FOXD2-As1-promoted EZH2 activation. Aging (Albany NY) 2021; 13:24101-24116. [PMID: 34739394 PMCID: PMC8610140 DOI: 10.18632/aging.203662] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Accepted: 10/25/2021] [Indexed: 12/21/2022]
Abstract
Currently, conventional treatment is not sufficient to improve the survival of glioma patients. Hence, adopting novel personalized treatment programs is imperative. Curcumol, a Chinese herbal medicine extract from the roots of Rhizoma Curcumae, has attracted significant interest due to its beneficial pharmacological activities. The current study revealed that curcumol inhibited the proliferation, metastasis, self-renewal ability, and TMZ resistance in glioma cells in vitro and in vivo. Next, the potential molecular mechanisms of curcumol in inhibiting glioma were investigated. We found that the long non-coding RNA (lncRNA) FOXD2-As1 might contribute to the effects of curcumol on glioma cells. Enforced expression of FOXD2-As1 attenuated the curcumol-induced reduction in glioma cell proliferation, metastasis, self-renewal ability, and TMZ resistance. Moreover, the forced expression of FOXD2-As1 reversed the inhibitory effect of curcumol on the binding ability of EZH2 and H3K27me3 modification in the promoter regions of anti-oncogenes. Our results showed for the first time that curcumol is effective in inhibiting malignant biological behaviors and TMZ-resistance of glioma cells by suppressing FOXD2-As1-mediated EZH2 activation. Our study offers the possibility of exploiting curcumol as a promising therapeutic agent for glioma treatment and may provide an option for the clinical application of this natural herbal medicine.
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Nutraceuticals in mental diseases - Bridging the gap between traditional use and modern pharmacology. Curr Opin Pharmacol 2021; 61:62-68. [PMID: 34628304 DOI: 10.1016/j.coph.2021.08.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 08/12/2021] [Accepted: 08/26/2021] [Indexed: 01/02/2023]
Abstract
In evidence-based pharmacotherapy, the complexity of etiopathogenesis and pathophysiology of mental diseases has attracted comparably little consideration so far. The choice of currently available pharmacotherapies is predominantly guided by specific clinical phenotypes and is limited by low response rates and clinically relevant side effects. Nutraceuticals typically represent multicomponent compounds and may offer high therapeutic potential, by simultaneously addressing multiple aspects in mental disease pathogenesis with rather little side effects. Here, recent pharmacological research on natural products is assessed with focus on a multitarget therapeutic concept, based on shared molecular mechanisms, and in particular, on how far nutraceuticals might address such multitargets. Overcoming deficits regarding clearly defined compositions, concentration-dependent and causative structure-activity-response relationships, evaluation of bioavailability, metabolic fate, and long-term safety are crucial for translating potential plant-based drug candidates into proof-of-concept clinical studies.
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Mills DJ. The Aging GABAergic System and Its Nutritional Support. J Nutr Metab 2021; 2021:6655064. [PMID: 33986956 PMCID: PMC8093074 DOI: 10.1155/2021/6655064] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2021] [Revised: 03/28/2021] [Accepted: 04/05/2021] [Indexed: 01/08/2023] Open
Abstract
Aging is associated with a decline in hormones and an associated decline in GABAergic function and calcium and ion current dysregulation. Neurosteroid hormones act as direct calcium channel blockers, or they can act indirectly on calcium channels through their interaction with GABA receptors. The calcium channel dysfunction associated with hormone loss further leads to an excitatory cell state, which can ultimately lead to cell death. The calcium theory of aging posits that cellular mechanisms, which maintain the homeostasis of cytosol Ca2+ concentration, play a key role in brain aging and that sustained changes in Ca2+ homeostasis provide the final common pathway for age-associated brain changes. There is a link between hormone loss and calcium dysregulation. Loss of calcium regulation associated with aging can lead to an excitatory cell state, primarily in the mitochondria and nerve cells, which can ultimately lead to cell death if not kept in check. A decline in GABAergic function can also be specifically tied to declines in progesterone, allopregnanolone, and DHEA levels associated with aging. This decline in GABAergic function associated with hormone loss ultimately affects GABAergic inhibition or excitement and calcium regulation throughout the body. In addition, declines in GABAergic function can also be tied to vitamin status and to toxic chemicals in the food supply. The decline in GABAergic function associated with aging has an effect on just about every body organ system. Nutritional support of the GABAergic system with supportive foods, vitamins, and GABA or similar GABA receptor ligands may address some of the GABAergic dysfunction associated with aging.
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Affiliation(s)
- Demetra J. Mills
- Patent Trial and Appeal Board Biotechnology, 5232 Capon Hill Pl, Burke, VA 22015, USA
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12
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Yabuki Y, Liu J, Kawahata I, Izumi H, Shinoda Y, Koga K, Ueno S, Shioda N, Fukunaga K. Anti-Epileptic Effects of FABP3 Ligand MF1 through the Benzodiazepine Recognition Site of the GABA A Receptor. Int J Mol Sci 2020; 21:ijms21155525. [PMID: 32752296 PMCID: PMC7432285 DOI: 10.3390/ijms21155525] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 07/29/2020] [Accepted: 07/29/2020] [Indexed: 11/16/2022] Open
Abstract
Recently, we developed the fatty acid-binding protein 3 (FABP3) ligand MF1 (4-(2-(1-(2-chlorophenyl)-5-phenyl-1H-pyrazol-3-yl)phenoxy) butanoic acid) as a therapeutic candidate for α-synucleinopathies. MF1 shows affinity towards γ-aminobutyric acid type-A (GABAA) receptor, but its effect on the receptor remains unclear. Here, we investigate the pharmacological properties of MF1 on the GABAA receptor overexpressed in Neuro2A cells. While MF1 (1–100 μm) alone failed to evoke GABA currents, MF1 (1 μm) promoted GABA currents during GABA exposure (1 and 10 μm). MF1-promoted GABA currents were blocked by flumazenil (10 μm) treatment, suggesting that MF1 enhances receptor function via the benzodiazepine recognition site. Acute and chronic administration of MF1 (0.1, 0.3 and 1.0 mg/kg, p.o.) significantly attenuated status epilepticus (SE) and the mortality rate in pilocarpine (PILO: 300 mg/kg, i.p.)-treated mice, similar to diazepam (DZP: 5.0 mg/kg, i.p.). The anti-epileptic effects of DZP (5.0 mg/kg, i.p.) and MF1 (0.3 mg/kg, p.o.) were completely abolished by flumazenil (25 mg/kg, i.p.) treatment. Pentylenetetrazol (PTZ: 90 mg/kg, i.p.)-induced seizures in mice were suppressed by DZP (5.0 mg/kg, i.p.), but not MF1. Collectively, this suggests that MF1 is a mild enhancer of the GABAA receptor and exercises anti-epileptic effects through the receptor’s benzodiazepine recognition site in PILO-induced SE models.
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Affiliation(s)
- Yasushi Yabuki
- Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai 980-8578, Japan; (Y.Y.); (J.L.); (I.K.); (H.I.); (Y.S.)
- Department of Genomic Neurology, Institute of Molecular Embryology and Genetics, Kumamoto University, Kumamoto 860-0811, Japan;
| | - Jiaqi Liu
- Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai 980-8578, Japan; (Y.Y.); (J.L.); (I.K.); (H.I.); (Y.S.)
| | - Ichiro Kawahata
- Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai 980-8578, Japan; (Y.Y.); (J.L.); (I.K.); (H.I.); (Y.S.)
| | - Hisanao Izumi
- Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai 980-8578, Japan; (Y.Y.); (J.L.); (I.K.); (H.I.); (Y.S.)
| | - Yasuharu Shinoda
- Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai 980-8578, Japan; (Y.Y.); (J.L.); (I.K.); (H.I.); (Y.S.)
| | - Kohei Koga
- Department of Neurophysiology, Hyogo College of Medicine, Nishinomiya 663-8501, Japan;
- Department of Neurophysiology, Graduate School of Medicine, Hirosaki University, Hirosaki 036-8216, Japan;
| | - Shinya Ueno
- Department of Neurophysiology, Graduate School of Medicine, Hirosaki University, Hirosaki 036-8216, Japan;
| | - Norifumi Shioda
- Department of Genomic Neurology, Institute of Molecular Embryology and Genetics, Kumamoto University, Kumamoto 860-0811, Japan;
| | - Kohji Fukunaga
- Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai 980-8578, Japan; (Y.Y.); (J.L.); (I.K.); (H.I.); (Y.S.)
- Correspondence: ; Tel.: +81-22-795-6836; Fax: 81-22-795-6835
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13
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Bruder M, Polo G, Trivella DBB. Natural allosteric modulators and their biological targets: molecular signatures and mechanisms. Nat Prod Rep 2020; 37:488-514. [PMID: 32048675 DOI: 10.1039/c9np00064j] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Covering: 2008 to 2018Over the last decade more than two hundred single natural products were confirmed as natural allosteric modulators (alloNPs) of proteins. The compounds are presented and discussed with the support of a chemical space, constructed using a principal component analysis (PCA) of molecular descriptors from chemical compounds of distinct databases. This analysis showed that alloNPs are dispersed throughout the majority of the chemical space defined by natural products in general. Moreover, a cluster of alloNPs was shown to occupy a region almost devoid of allosteric modulators retrieved from a dataset composed mainly of synthetic compounds, further highlighting the importance to explore the entire natural chemical space for probing allosteric mechanisms. The protein targets which alloNPs bind to comprised 81 different proteins, which were classified into 5 major groups, with enzymes, in particular hydrolases, being the main representative group. The review also brings a critical interpretation on the mechanisms by which alloNPs display their molecular action on proteins. In the latter analysis, alloNPs were classified according to their final effect on the target protein, resulting in 3 major categories: (i) local alteration of the orthosteric site; (ii) global alteration in protein dynamics that change function; and (iii) oligomer stabilisation or protein complex destabilisation via protein-protein interaction in sites distant from the orthosteric site. G-protein coupled receptors (GPCRs), which use a combination of the three types of allosteric regulation found, were also probed by natural products. In summary, the natural allosteric modulators reviewed herein emphasise their importance for exploring alternative chemotherapeutic strategies, potentially pushing the boundaries of the druggable space of pharmacologically relevant drug targets.
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Affiliation(s)
- Marjorie Bruder
- Brazilian Biosciences National Laboratory (LNBio), National Centre for Research in Energy and Materials (CNPEM), 13083-970 Campinas, SP, Brazil.
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14
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da Fonsêca DV, da Silva Maia Bezerra Filho C, Lima TC, de Almeida RN, de Sousa DP. Anticonvulsant Essential Oils and Their Relationship with Oxidative Stress in Epilepsy. Biomolecules 2019; 9:E835. [PMID: 31817682 PMCID: PMC6995584 DOI: 10.3390/biom9120835] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Revised: 11/23/2019] [Accepted: 11/26/2019] [Indexed: 12/16/2022] Open
Abstract
Epilepsy is a most disabling neurological disorder affecting all age groups. Among the various mechanisms that may result in epilepsy, neuronal hyperexcitability and oxidative injury produced by an excessive formation of free radicals may play a role in the development of this pathology. Therefore, new treatment approaches are needed to address resistant conditions that do not respond fully to current antiepileptic drugs. This paper reviews studies on the anticonvulsant activities of essential oils and their chemical constituents. Data from studies published from January 2011 to December 2018 was selected from the PubMed database for examination. The bioactivity of 19 essential oils and 16 constituents is described. Apiaceae and Lamiaceae were the most promising botanical families due to the largest number of reports about plant species from these families that produce anticonvulsant essential oils. Among the evaluated compounds, β-caryophyllene, borneol, eugenol and nerolidol were the constituents that presented antioxidant properties related to anticonvulsant action. These data show the potential of these natural products as health promoting agents and use against various types of seizure disorders. Their properties on oxidative stress may contribute to the control of this neurological condition. However, further studies on the toxicological profile and mechanism of action of essential oils are needed.
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Affiliation(s)
- Diogo Vilar da Fonsêca
- College of Medicine, Federal University of the Vale do São Francisco, Paulo Afonso, BA, CEP 48607-190, Brazil;
| | | | - Tamires Cardoso Lima
- Department of Pharmacy, Federal University of Sergipe, São Cristóvão, SE, CEP 49100-000, Brazil;
| | - Reinaldo Nóbrega de Almeida
- Department of Physiology and Pathology, Universidade Federal da Paraíba, João Pessoa, PB, CEP 58051-970, Brazil;
| | - Damião Pergentino de Sousa
- Department of Pharmaceutical Sciences, Universidade Federal da Paraíba, João Pessoa, PB, CEP 58051-970, Brazil;
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15
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Wei W, Rasul A, Sadiqa A, Sarfraz I, Hussain G, Nageen B, Liu X, Watanabe N, Selamoglu Z, Ali M, Li X, Li J. Curcumol: From Plant Roots to Cancer Roots. Int J Biol Sci 2019; 15:1600-1609. [PMID: 31360103 PMCID: PMC6643219 DOI: 10.7150/ijbs.34716] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Accepted: 05/02/2019] [Indexed: 02/06/2023] Open
Abstract
Natural products, an infinite treasure of bioactive scaffolds, have provided an excellent reservoir for the discovery of drugs since millennium. These naturally occurring, biologically active and therapeutically effective chemical entities have emerged as novel paradigm for the prevention of various diseases. This review aims to give an update on the sources as well as pharmacological profile of curcumol, a pharmacologically active sesquiterpenoid, which is an imperative bioactive constituent of several plants mainly from genus Curcuma. Curcumol has potential to fight against cancer, oxidative stress, neurodegeneration, microbial infections, and inflammation. Curcumol has been documented as potent inducer of apoptosis in numerous cancer cells via targeting key signaling pathways as MAPK/ERK, PI3K/Akt and NF-κB which are generally deregulated in several cancers. The reported data reveals multitarget activity of curcumol in cancer treatment suggesting its importance as anticancer drug in future. It is speculated that curcumol may provide an excellent opportunity for the cure of cancer but further investigations on mechanism of its action and preclinical trials are still mandatory to further validate the potential of this natural cancer killer in anticancer therapies.
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Affiliation(s)
- Wei Wei
- Dental Hospital, Jilin University, Changchun 130021, China
| | - Azhar Rasul
- The Key Laboratory of Molecular Epigenetics of MOE, Institute of Genetics and Cytology, Northeast Normal University, Changchun 130024, China.,Department of Zoology, Faculty of Life Sciences, Government College University Faisalabad (GCUF), 38000, Pakistan
| | - Ayesha Sadiqa
- Department of Zoology, Faculty of Life Sciences, Government College University Faisalabad (GCUF), 38000, Pakistan
| | - Iqra Sarfraz
- Department of Zoology, Faculty of Life Sciences, Government College University Faisalabad (GCUF), 38000, Pakistan
| | - Ghulam Hussain
- Department of Physiology, Faculty of Life Sciences, Government College University Faisalabad (GCUF), 38000, Pakistan
| | - Bushra Nageen
- Department of Zoology, Faculty of Life Sciences, Government College University Faisalabad (GCUF), 38000, Pakistan
| | - Xintong Liu
- Dental Hospital, Jilin University, Changchun 130021, China
| | - Nobumoto Watanabe
- Bio-Active Compounds Discovery Research Unit, RIKEN Center for Sustainable Resource Science, Wako, Saitama 351-0198, Japan
| | - Zeliha Selamoglu
- Department of Medical Biology, Faculty of Medicine, Nigde Ömer Halisdemir University, Nigde, Campus 51240 Turkey
| | - Muhammad Ali
- Quaid-e-Azam University, Islamabad, 45320, Pakistan
| | - Xiaomeng Li
- The Key Laboratory of Molecular Epigenetics of MOE, Institute of Genetics and Cytology, Northeast Normal University, Changchun 130024, China
| | - Jiang Li
- Dental Hospital, Jilin University, Changchun 130021, China
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16
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Quercetin Reduces Cortical GABAergic Transmission and Alleviates MK-801-Induced Hyperactivity. EBioMedicine 2018; 34:201-213. [PMID: 30057312 PMCID: PMC6116474 DOI: 10.1016/j.ebiom.2018.07.031] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2018] [Revised: 07/11/2018] [Accepted: 07/20/2018] [Indexed: 02/06/2023] Open
Abstract
An imbalance between neuronal excitation and inhibition represents a core feature in multiple neuropsychiatry disorders, necessitating the development of novel strategies to calibrate the excitatory–inhibitory balance of therapeutics. Here we identify a natural compound quercetin that reduces prefrontal cortical GABAergic transmission and alleviates the hyperactivity induced by glutamatergic N-methyl-d-aspartate receptor antagonist MK-801. Quercetin markedly reduced the GABA-activated currents in a noncompetitive manner in cultured cortical neurons, and moderately inhibited spontaneous and electrically-evoked GABAergic inhibitory postsynaptic current in mouse prefrontal cortical slices. Notably, systemic and prefrontal-specific delivery of quercetin reduced basal locomotor activity in addition to alleviated the MK-801-induced hyperactivity. The effects of quercetin were not exclusively dependent on α5-subunit-containing A type GABA receptors (GABAARs), as viral-mediated, region-specific genetic knockdown of the α5-subunit in prefrontal cortex improved the MK-801-evoked psychotic symptom but reserved the pharmacological responsivity to quercetin. Both interventions together completely normalized the locomotor activity. Together, quercetin as a negative allosteric GABAAR modulator exerted antipsychotic activity, facilitating further therapeutic development for the excitatory–inhibitory imbalance disorders.
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17
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Çiçek SS. Structure-Dependent Activity of Natural GABA(A) Receptor Modulators. Molecules 2018; 23:molecules23071512. [PMID: 29932138 PMCID: PMC6100244 DOI: 10.3390/molecules23071512] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 06/19/2018] [Accepted: 06/20/2018] [Indexed: 12/22/2022] Open
Abstract
GABA(A) receptors are ligand-gated ion channels consisting of five subunits from eight subfamilies, each assembled in four hydrophobic transmembrane domains. This pentameric structure not only allows different receptor binding sites, but also various types of ligands, such as orthosteric agonists and antagonists, positive and negative allosteric modulators, as well as second-order modulators and non-competitive channel blockers. A fact, that is also displayed by the variety of chemical structures found for both, synthetic as well as nature-derived GABA(A)-receptor modulators. This review covers the literature for natural GABA(A)-receptor modulators until the end of 2017 and discusses their structure-activity relationship.
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Affiliation(s)
- Serhat Sezai Çiçek
- Department of Pharmaceutical Biology, Kiel University, Gutenbergstraße 76, 24118 Kiel, Germany.
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18
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Zhang XX, Ko RYY, Xie XQ, Qi WP, Li PC, Chiu P. Application of a rhodium-catalyzed cyclization cycloaddition cascade strategy to the total synthesis of (−)-curcumol. Org Chem Front 2018. [DOI: 10.1039/c7qo01150d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The first de novo total synthesis of (−)-curcumol was accomplished using a rhodium-catalyzed cyclization–cycloaddition cascade reaction as the key step.
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Affiliation(s)
- X. X. Zhang
- College of Pharmaceutical Sciences
- Zhejiang University of Technology
- Hangzhou
- P. R. China
| | - R. Y. Y. Ko
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry
- The University of Hong Kong
- P. R. China
| | - X. Q. Xie
- College of Pharmaceutical Sciences
- Zhejiang University of Technology
- Hangzhou
- P. R. China
| | - W. P. Qi
- College of Pharmaceutical Sciences
- Zhejiang University of Technology
- Hangzhou
- P. R. China
| | - P. C. Li
- College of Pharmaceutical Sciences
- Zhejiang University of Technology
- Hangzhou
- P. R. China
| | - P. Chiu
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry
- The University of Hong Kong
- P. R. China
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