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Wen X, Hu J. Targeting STAT3 signaling pathway in the treatment of Alzheimer's disease with compounds from natural products. Int Immunopharmacol 2024; 141:112936. [PMID: 39163684 DOI: 10.1016/j.intimp.2024.112936] [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: 06/12/2024] [Revised: 08/12/2024] [Accepted: 08/12/2024] [Indexed: 08/22/2024]
Abstract
Alzheimer's disease (AD) is a neurodegenerative disorder that is difficult to cure and of global concern. Neuroinflammation is closely associated with the onset and progression of AD, making its treatment increasingly important. Compounds from natural products, with fewer side effects than synthetic drugs, are of high research interest. STAT3, a multifunctional transcription factor, is involved in various cellular processes including inflammation, cell growth, and apoptosis. Its activation and inhibition can have different effects under various pathological conditions. In AD, the STAT3 protein plays a crucial role in promoting neuroinflammation and contributing to disease progression. This occurs primarily through the JAK2-STAT3 signaling pathway, which impacts microglia, astrocytes, and hippocampal neurons. This paper reviews the STAT3 signaling pathway in AD and 25 compounds targeting STAT3 up to 2024. Notably, Rutin, Paeoniflorin, and Geniposide up-regulate STAT3 in hippocampal and cortex neurons, showing neuroprotective effects in various AD models. Other 23 compounds downregulate AD by suppressing neuroinflammation through inhibition of STAT3 activation in microglia and astrocytes. These findings highlight the potential of compounds from natural products in improving AD by targeting STAT3, offering insights into the prevention and management of AD.
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Affiliation(s)
- Xiyue Wen
- Department of Clinical Laboratory, The Affiliated Changsha Central Hospital, Hengyang Medical School, University of South China, Changsha 410004, China
| | - Jinyue Hu
- Medical Research Center, The Affiliated Changsha Central Hospital, Hengyang Medical School, University of South China, Changsha 410004, China.
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Ahmad N, Chen L, Yuan Z, Ma X, Yang X, Wang Y, Zhao Y, Jin H, Khaidamah N, Wang J, Lu J, Liu Z, Wu M, Wang Q, Qi Y, Wang C, Zhao Y, Piao Y, Huang R, Diao Y, Deng S, Shu X. Pyrimidine compounds BY4003 and BY4008 inhibit glioblastoma cells growth via modulating JAK3/STAT3 signaling pathway. Neurotherapeutics 2024:e00431. [PMID: 39153914 DOI: 10.1016/j.neurot.2024.e00431] [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: 02/05/2024] [Revised: 08/02/2024] [Accepted: 08/02/2024] [Indexed: 08/19/2024] Open
Abstract
Glioblastoma (GBM) is a brain tumor characterized by its aggressive and invasive properties. It is found that STAT3 is abnormally activated in GBM, and inhibiting STAT3 signaling can effectively suppress tumor progression. In this study, novel pyrimidine compounds, BY4003 and BY4008, were synthesized to target the JAK3/STAT3 signaling pathway, and their therapeutic efficacy and mechanisms of action were evaluated and compared with Tofacitinib in U251, A172, LN428 and patient-derived glioblastoma cells. The ADP-Glo™ kinase assay was utilized to assessed the inhibitory effects of BY4003 and BY4008 on JAK3, a crucial member of the JAK family. The results showed that both compounds significantly inhibited JAK3 enzyme activity, with IC50 values in the nanomolar range. The antiproliferative effects of BY4003, BY4008, and Tofacitinib on GBM and patient-derived glioblastoma cells were evaluated by MTT and H&E assays. The impact of BY4003 and BY4008 on GBM cell migration and apoptosis induction was assessed through wound healing, transwell, and TUNEL assays. STAT3-regulated protein expression and relative mRNA levels were analyzed by western blotting, immunocytochemistry, immunofluorescence, and qRT-PCR. It was found that BY4003, BY4008 and Tofacitinib could inhibit U251, A172, LN428 and patient-derived glioblastoma cells growth and proliferation. Results showed decreased expression of STAT3-associated proteins, including p-STAT3, CyclinD1, and Bcl-2, and increased expression of Bax, a pro-apoptotic protein, as well as significant down-regulation of STAT3 and STAT3-related genes. These findings suggested that BY4003 and BY4008 could inhibit GBM growth by suppressing the JAK3/STAT3 signaling pathway, providing valuable insights into the therapeutic development of GBM.
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Affiliation(s)
- Nisar Ahmad
- College of Pharmacy, Dalian Medical University, Dalian 116044, China; College of Basic Medical Science, Dalian Medical University, Dalian 116044, China; Institute of Integrative Medicine, Dalian Medical University, Dalian 116044, China
| | - Lixue Chen
- College of Pharmacy, Dalian Medical University, Dalian 116044, China
| | - Zixi Yuan
- College of Pharmacy, Dalian Medical University, Dalian 116044, China
| | - Xiaodong Ma
- College of Pharmacy, Dalian Medical University, Dalian 116044, China; Key Laboratories for Basic and Applied Research on Pharmacodynamic Substances of Traditional Chinese Medicine of Liaoning Province, Dalian Medical University, Dalian 116044, China
| | - Xiaobo Yang
- College of Pharmacy, Dalian Medical University, Dalian 116044, China.
| | - Yinan Wang
- College of Pharmacy, Dalian Medical University, Dalian 116044, China; Institute of Integrative Medicine, Dalian Medical University, Dalian 116044, China; The First Affiliated Hospital of Dalian Medical University, Dalian 116044, China
| | - Yongshun Zhao
- The First Affiliated Hospital of Dalian Medical University, Dalian 116044, China
| | - Huan Jin
- College of Pharmacy, Dalian Medical University, Dalian 116044, China
| | - Najib Khaidamah
- College of Pharmacy, Dalian Medical University, Dalian 116044, China; Institute of Integrative Medicine, Dalian Medical University, Dalian 116044, China
| | - Jinan Wang
- College of Pharmacy, Dalian Medical University, Dalian 116044, China
| | - Jiashuo Lu
- College of Pharmacy, Dalian Medical University, Dalian 116044, China
| | - Ziqi Liu
- College of Pharmacy, Dalian Medical University, Dalian 116044, China
| | - Moli Wu
- College of Basic Medical Science, Dalian Medical University, Dalian 116044, China
| | - Qian Wang
- College of Basic Medical Science, Dalian Medical University, Dalian 116044, China
| | - Yan Qi
- College of Pharmacy, Dalian Medical University, Dalian 116044, China
| | - Chong Wang
- College of Pharmacy, Dalian Medical University, Dalian 116044, China
| | - Yupu Zhao
- College of Pharmacy, Dalian Medical University, Dalian 116044, China
| | - Yang Piao
- College of Pharmacy, Dalian Medical University, Dalian 116044, China
| | - Rujie Huang
- College of Pharmacy, Dalian Medical University, Dalian 116044, China
| | - Yunpeng Diao
- College of Pharmacy, Dalian Medical University, Dalian 116044, China; Key Laboratories for Basic and Applied Research on Pharmacodynamic Substances of Traditional Chinese Medicine of Liaoning Province, Dalian Medical University, Dalian 116044, China
| | - Sa Deng
- College of Pharmacy, Dalian Medical University, Dalian 116044, China
| | - Xiaohong Shu
- College of Pharmacy, Dalian Medical University, Dalian 116044, China; Institute of Integrative Medicine, Dalian Medical University, Dalian 116044, China; Key Laboratories for Basic and Applied Research on Pharmacodynamic Substances of Traditional Chinese Medicine of Liaoning Province, Dalian Medical University, Dalian 116044, China.
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Li D, Pan S, Jiang W, Gao H. Subcutaneous administration of Stattic alleviates neuropathic pain by relieving inflammation in a mouse model of postherpetic neuralgia. Neurosci Lett 2024; 834:137831. [PMID: 38796093 DOI: 10.1016/j.neulet.2024.137831] [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: 03/13/2024] [Revised: 04/03/2024] [Accepted: 05/22/2024] [Indexed: 05/28/2024]
Abstract
Stattic, a commercial inhibitor of STAT3, can drive the development of neuropathic pain. Exploring the connection between Stattic and JAK1/STAT3 signaling may facilitate the understanding of neuropathic pain caused by postherpetic neuralgia (PHN). In the current study, as crucial regulators of inflammation, STAT3 and its associated JAK1/STAT3 pathway were found to be upregulated and activated in the L4-L6 dorsal root ganglion (DRG) of mice in response to resiniferatoxin (RTX)-induced PHN, while subcutaneous administration of Stattic was found to downregulate STAT3 expression and phosphorylation in a PHN model. Stattic administration further attenuated hypersensitivity to mechanical and thermal stimuli in PHN mice, and alleviated inflammation and cell death in the L4-L6 DRG of mice. Overexpression of STAT3 via microinjection of a lentiviral-STAT3 overexpression vector reversed the abnormal decrease of STAT3 at both the mRNA and protein levels in the L4-6 DRGs of PHN mice and significantly promoted hypersensitivity to mechanical stimuli in the mice. Collectively, we found that subcutaneous static administration alleviated RTX-induced neuropathic pain by deactivating JAK1/STAT3 in mice.
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Affiliation(s)
- Dan Li
- Department of Anesthesiology, Wuxi Huishan District People's Hospital, Affiliated Huishan Hospital of Xinglin College, Nantong University, Wuxi 214187, China
| | - Shuai Pan
- Department of Anesthesiology, Wuxi People's Hospital, Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi Medical Center, Nanjing Medical University, Wuxi 200014, China
| | - Wei Jiang
- Department of Anesthesiology, Wuxi Huishan District People's Hospital, Affiliated Huishan Hospital of Xinglin College, Nantong University, Wuxi 214187, China
| | - Hong Gao
- Department of Anesthesiology, Wuxi People's Hospital, Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi Medical Center, Nanjing Medical University, Wuxi 200014, China.
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Zhou P, Yu X, Song T, Hou X. Safety and efficacy of antioxidant therapy in children and adolescents with attention deficit hyperactivity disorder: A systematic review and network meta-analysis. PLoS One 2024; 19:e0296926. [PMID: 38547138 PMCID: PMC10977718 DOI: 10.1371/journal.pone.0296926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Accepted: 12/22/2023] [Indexed: 04/02/2024] Open
Abstract
OBJECTIVE To systematically evaluate the safety and efficacy of antioxidant therapy in children and adolescents with attention deficit hyperactivity disorder (ADHD). METHODS Randomized controlled trials and prospective studies on antioxidant therapy in children and adolescents with ADHD were searched in PubMed, Embase, and Cochrane Library from the inception of databases to November 12, 2022. Two investigators independently screened the literature, extracted data, and evaluated the quality of the included studies. Network meta-analysis (PROSPERO registration number CRD 42023382824) was carried out by using R Studio 4.2.1. RESULTS 48 studies involving 12 antioxidant drugs (resveratrol, pycnogenol, omega-3, omega-6, quercetin, phosphatidylserine, almond, vitamin D, zinc, folic acid, ginkgo biloba, Acetyl-L-carnitine) were finally included, with 3,650 patients. Network meta-analysis showed that omega-6 (0.18), vitamin D (0.19), and quercetin (0.24) were the top three safest drugs according to SUCRA. The omega-3 (SUCRA 0.35), pycnogenol (SUCRA 0.36), and vitamin D (SUCRA 0.27) were the most effective in improving attention, hyperactivity, and total score of Conners' parent rating scale (CPRS), respectively. In terms of improving attention, hyperactivity, and total score of Conners' teacher rating scale (CTRS), pycnogenol (SUCRA 0.32), phosphatidylserine+omega-3 (SUCRA 0.26), and zinc (SUCRA 0.34) were the most effective, respectively. In terms of improving attention, hyperactivity and total score of ADHD Rating Scale-Parent, the optimal agents were phosphatidylserine (SUCRA 0.39), resveratrol+MPH (SUCRA 0.24), and phosphatidylserine (SUCRA 0.34), respectively. In terms of improving attention, hyperactivity and total score of ADHD Rating Scale-Teacher, pycnogenol (SUCRA 0.32), vitamin D (SUCRA 0.31) and vitamin D (SUCRA 0.18) were the optimal agents, respectively. The response rate of omega-3+6 was the highest in CGI (SUCRA 0.95) and CPT (SUCRA 0.42). CONCLUSION The rankings of safety and efficacy of the 12 antioxidants vary. Due to the low methodological quality of the included studies, the probability ranking cannot fully explain the clinical efficacy, and the results need to be interpreted with caution. More high-quality studies are still needed to verify our findings.
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Affiliation(s)
- Peike Zhou
- Department of Pediatrics, Affiliated ZhongShan Hospital of Dalian University, Dalian, Liaoning, China
| | - Xiaohui Yu
- Department of Pediatrics, Affiliated ZhongShan Hospital of Dalian University, Dalian, Liaoning, China
| | - Tao Song
- Department of Pediatrics, Affiliated ZhongShan Hospital of Dalian University, Dalian, Liaoning, China
| | - Xiaoli Hou
- Department of Pediatrics, Affiliated ZhongShan Hospital of Dalian University, Dalian, Liaoning, China
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Avola R, Furnari AG, Graziano ACE, Russo A, Cardile V. Management of the Brain: Essential Oils as Promising Neuroinflammation Modulator in Neurodegenerative Diseases. Antioxidants (Basel) 2024; 13:178. [PMID: 38397776 PMCID: PMC10886016 DOI: 10.3390/antiox13020178] [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: 12/27/2023] [Revised: 01/24/2024] [Accepted: 01/26/2024] [Indexed: 02/25/2024] Open
Abstract
Neuroinflammation, a pivotal factor in the pathogenesis of various brain disorders, including neurodegenerative diseases, has become a focal point for therapeutic exploration. This review highlights neuroinflammatory mechanisms that hallmark neurodegenerative diseases and the potential benefits of essential oils in counteracting neuroinflammation and oxidative stress, thereby offering a novel strategy for managing and mitigating the impact of various brain disorders. Essential oils, derived from aromatic plants, have emerged as versatile compounds with a myriad of health benefits. Essential oils exhibit robust antioxidant activity, serving as scavengers of free radicals and contributing to cellular defense against oxidative stress. Furthermore, essential oils showcase anti-inflammatory properties, modulating immune responses and mitigating inflammatory processes implicated in various chronic diseases. The intricate mechanisms by which essential oils and phytomolecules exert their anti-inflammatory and antioxidant effects were explored, shedding light on their multifaceted properties. Notably, we discussed their ability to modulate diverse pathways crucial in maintaining oxidative homeostasis and suppressing inflammatory responses, and their capacity to rescue cognitive deficits observed in preclinical models of neurotoxicity and neurodegenerative diseases.
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Affiliation(s)
- Rosanna Avola
- Faculty of Medicine and Surgery, University of Enna “Kore”, 94100 Enna, Italy;
| | | | | | - Alessandra Russo
- Department of Drug and Health Sciences, University of Catania, 95123 Catania, Italy;
| | - Venera Cardile
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy;
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Kaffe D, Kaplanis SI, Karagogeos D. The Roles of Caloric Restriction Mimetics in Central Nervous System Demyelination and Remyelination. Curr Issues Mol Biol 2023; 45:9526-9548. [PMID: 38132442 PMCID: PMC10742427 DOI: 10.3390/cimb45120596] [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: 10/02/2023] [Revised: 11/16/2023] [Accepted: 11/22/2023] [Indexed: 12/23/2023] Open
Abstract
The dysfunction of myelinating glial cells, the oligodendrocytes, within the central nervous system (CNS) can result in the disruption of myelin, the lipid-rich multi-layered membrane structure that surrounds most vertebrate axons. This leads to axonal degeneration and motor/cognitive impairments. In response to demyelination in the CNS, the formation of new myelin sheaths occurs through the homeostatic process of remyelination, facilitated by the differentiation of newly formed oligodendrocytes. Apart from oligodendrocytes, the two other main glial cell types of the CNS, microglia and astrocytes, play a pivotal role in remyelination. Following a demyelination insult, microglia can phagocytose myelin debris, thus permitting remyelination, while the developing neuroinflammation in the demyelinated region triggers the activation of astrocytes. Modulating the profile of glial cells can enhance the likelihood of successful remyelination. In this context, recent studies have implicated autophagy as a pivotal pathway in glial cells, playing a significant role in both their maturation and the maintenance of myelin. In this Review, we examine the role of substances capable of modulating the autophagic machinery within the myelinating glial cells of the CNS. Such substances, called caloric restriction mimetics, have been shown to decelerate the aging process by mitigating age-related ailments, with their mechanisms of action intricately linked to the induction of autophagic processes.
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Affiliation(s)
- Despoina Kaffe
- Department of Biology, University of Crete, Vassilika Vouton, 70013 Heraklion, Greece;
| | - Stefanos Ioannis Kaplanis
- Department of Basic Science, School of Medicine, University of Crete, Vassilika Vouton, 70013 Heraklion, Greece;
- Institute of Molecular Biology & Biotechnology (IMBB), Foundation for Research and Technology-Hellas (FORTH), Vassilika Vouton, 70013 Heraklion, Greece
| | - Domna Karagogeos
- Department of Basic Science, School of Medicine, University of Crete, Vassilika Vouton, 70013 Heraklion, Greece;
- Institute of Molecular Biology & Biotechnology (IMBB), Foundation for Research and Technology-Hellas (FORTH), Vassilika Vouton, 70013 Heraklion, Greece
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Hong Y, Wang Y, Cui Y, Pan J, Mao S, Zhu Y, Wen T, Qi T, Wang A, Luo Y. MicroRNA-124-3p Attenuated Retinal Neovascularization in Oxygen-Induced Retinopathy Mice by Inhibiting the Dysfunction of Retinal Neuroglial Cells through STAT3 Pathway. Int J Mol Sci 2023; 24:11767. [PMID: 37511525 PMCID: PMC10380620 DOI: 10.3390/ijms241411767] [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: 06/05/2023] [Revised: 07/12/2023] [Accepted: 07/20/2023] [Indexed: 07/30/2023] Open
Abstract
MicroRNA (miRNA) is a non-coding RNA that can regulate the expression of many target genes, and it is widely involved in various important physiological activities. MiR-124-3p was found to associate with the normal development of retinal vessels in our previous study, but the mechanism of its anti-angiogenic effect on pathological retinal neovascularization still needed to be explored. Therefore, this study aimed to investigate the effect and mechanism of miR-124-3p on retinal neovascularization in mice with oxygen-induced retinopathy (OIR). Here, we found that intravitreal injection of miR-124-3p agomir attenuated pathological retinal neovascularization in OIR mice. Moreover, miR-124-3p preserved the astrocytic template, inhibited reactive gliosis, and reduced the inflammatory response as well as necroptosis. Furthermore, miR-124-3p inhibited the signal transducer and activator of transcription 3 (STAT3) pathway and decreased the expression of hypoxia-inducible factor-1α and vascular endothelial growth factor. Taken together, our results revealed that miR-124-3p inhibited retinal neovascularization and neuroglial dysfunction by targeting STAT3 in OIR mice.
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Affiliation(s)
- Yiwen Hong
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou 510060, China
| | - Yishen Wang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou 510060, China
| | - Yamei Cui
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou 510060, China
| | - Jianying Pan
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou 510060, China
| | - Shudi Mao
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou 510060, China
| | - Yanjie Zhu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou 510060, China
| | - Tao Wen
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou 510060, China
| | - Tianyuan Qi
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou 510060, China
| | - Aoxiang Wang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou 510060, China
| | - Yan Luo
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou 510060, China
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Wu M, Song D, Li H, Ahmad N, Xu H, Yang X, Wang Q, Cheng X, Deng S, Shu X. Resveratrol Enhances Temozolomide Efficacy in Glioblastoma Cells through Downregulated MGMT and Negative Regulators-Related STAT3 Inactivation. Int J Mol Sci 2023; 24:ijms24119453. [PMID: 37298405 DOI: 10.3390/ijms24119453] [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: 03/24/2023] [Revised: 05/09/2023] [Accepted: 05/27/2023] [Indexed: 06/12/2023] Open
Abstract
Chemoresistance blunts the efficacy of temozolomide (TMZ) in the treatment of glioblastoma (GBM). Elevated levels of O6-methylguanine-DNA methyltransferase (MGMT) and activation of signal transducer and of transcription 3 (STAT3) have been reported to correlate with GBM resistance to alkylator chemotherapy. Resveratrol (Res) inhibits tumor growth and improves drug chemosensitivity by targeting STAT3 signaling. Whether the combined therapy of TMZ and Res could enhance chemosensitivity against GBM cells and the underlying molecular mechanism remains to be determined. In this study, Res was found to effectively improve chemosensitivities of different GBM cells to TMZ, which was evaluated by CCK-8, flow cytometry, and cell migration assay. The combined use of Res and TMZ downregulated STAT3 activity and STAT3-regulated gene products, thus inhibited cell proliferation and migration, as well as induced apoptosis, accompanied by increased levels of its negative regulators: PIAS3, SHP1, SHP2, and SOCS3. More importantly, a combination therapy of Res and TMZ reversed TMZ resistance of LN428 cells, which could be related to decreased MGMT and STAT3 levels. Furthermore, the JAK2-specific inhibitor AG490 was used to demonstrate that a reduced MGMT level was mediated by STAT3 inactivation. Taken together, Res inhibited STAT3 signaling through modulation of PIAS3, SHP1, SHP2, and SOCS3, thereby attenuating tumor growth and increasing sensitivity to TMZ. Therefore, Res is an ideal candidate to be used in TMZ combined chemotherapy for GBM.
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Affiliation(s)
- Moli Wu
- College of Pharmacy, Dalian Medical University, Dalian 116044, China
- College of Basic Medical Science, Dalian Medical University, Dalian 116044, China
| | - Danyang Song
- College of Pharmacy, Dalian Medical University, Dalian 116044, China
| | - Hui Li
- College of Pharmacy, Dalian Medical University, Dalian 116044, China
| | - Nisar Ahmad
- College of Pharmacy, Dalian Medical University, Dalian 116044, China
| | - Hong Xu
- College of Basic Medical Science, Dalian Medical University, Dalian 116044, China
| | - Xiaobo Yang
- College of Pharmacy, Dalian Medical University, Dalian 116044, China
| | - Qian Wang
- College of Basic Medical Science, Dalian Medical University, Dalian 116044, China
| | - Xiaoxin Cheng
- College of Basic Medical Science, Dalian Medical University, Dalian 116044, China
| | - Sa Deng
- College of Pharmacy, Dalian Medical University, Dalian 116044, China
| | - Xiaohong Shu
- College of Pharmacy, Dalian Medical University, Dalian 116044, China
- Key Laboratory for Basic and Applied Research on Pharmacodynamic Substances of Traditional Chinese Medicine of Liaoning Province, Dalian Medical University, Dalian 116044, China
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9
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IL-27 promotes decidualization via the STAT3-ESR/PGR regulatory axis. J Reprod Immunol 2022; 151:103623. [DOI: 10.1016/j.jri.2022.103623] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 03/15/2022] [Accepted: 04/08/2022] [Indexed: 01/18/2023]
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10
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Heimfarth L, Nascimento LDS, Amazonas da Silva MDJ, Lucca Junior WD, Lima ES, Quintans-Junior LJ, Veiga-Junior VFD. Neuroprotective and anti-inflammatory effect of pectolinarigenin, a flavonoid from Amazonian Aegiphila integrifolia (Jacq.), against lipopolysaccharide-induced inflammation in astrocytes via NFκB and MAPK pathways. Food Chem Toxicol 2021; 157:112538. [PMID: 34500010 DOI: 10.1016/j.fct.2021.112538] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Revised: 08/21/2021] [Accepted: 09/03/2021] [Indexed: 12/12/2022]
Abstract
Neurodegenerative diseases affect millions of people worldwide. Regardless of the underlying cause, neuroinflammation is the greatest risk factor for developing any of these disorders. Pectolinarigenin (PNG) is an active flavonoid with several biological properties, anti-metastatic and anti-inflammatory activity. This study investigate the biological effects of PNG in macrophage and astrocyte cultures, with focus on elucidating the molecular mechanisms involved in the PNG activity. J774A.1 murine macrophage or cerebral cortex primary astrocytes primary cultures were treated with different concentration of PNG (1-160 μM) and the inflammatory process was stimulated by LPS (1 μg/ml) and the effect of PNG in different inflammatory markers were determined. PNG did not affect astrocyte or macrophage viability. Moreover, this flavonoid reduced NO• release in macrophages, attenuated astrocyte activation by preventing the overexpression of glial fibrillary acidic protein, and decreased the release of inflammatory mediators, IL-1β and IL-6 induced by LPS by the glial cell, as well as enhanced basal levels of IL-10. In addition, PNG suppressed NFκB, p38MAPK and ERK1/2 phosphorylation in astrocytes culture induced by LPS. The results show clear evidence that this novel flavonoid protects astrocytes against LPS-induced inflammatory toxicity. In conclusion, PNG presents neuroprotective and anti-inflammatory property through the inhibition of inflammatory signaling pathways.
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Affiliation(s)
- Luana Heimfarth
- Department of Physiology, Federal University of Sergipe, São Cristóvão, SE, Brazil
| | | | | | | | - Emerson Silva Lima
- Faculty of Pharmaceutical Sciences, Federal University of Amazonas, Manaus, AM, Brazil
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Tolomeo M, Cascio A. The Multifaced Role of STAT3 in Cancer and Its Implication for Anticancer Therapy. Int J Mol Sci 2021; 22:ijms22020603. [PMID: 33435349 PMCID: PMC7826746 DOI: 10.3390/ijms22020603] [Citation(s) in RCA: 130] [Impact Index Per Article: 43.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 12/24/2020] [Accepted: 01/05/2021] [Indexed: 12/12/2022] Open
Abstract
Signal transducer and activator of transcription (STAT) 3 is one of the most complex regulators of transcription. Constitutive activation of STAT3 has been reported in many types of tumors and depends on mechanisms such as hyperactivation of receptors for pro-oncogenic cytokines and growth factors, loss of negative regulation, and excessive cytokine stimulation. In contrast, somatic STAT3 mutations are less frequent in cancer. Several oncogenic targets of STAT3 have been recently identified such as c-myc, c-Jun, PLK-1, Pim1/2, Bcl-2, VEGF, bFGF, and Cten, and inhibitors of STAT3 have been developed for cancer prevention and treatment. However, despite the oncogenic role of STAT3 having been widely demonstrated, an increasing amount of data indicate that STAT3 functions are multifaced and not easy to classify. In fact, the specific cellular role of STAT3 seems to be determined by the integration of multiple signals, by the oncogenic environment, and by the alternative splicing into two distinct isoforms, STAT3α and STAT3β. On the basis of these different conditions, STAT3 can act both as a potent tumor promoter or tumor suppressor factor. This implies that the therapies based on STAT3 modulators should be performed considering the pleiotropic functions of this transcription factor and tailored to the specific tumor type.
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12
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Kong C, Du J, Bu H, Huang C, Xu F, Ren H. LncRNA KCNA2-AS regulates spinal astrocyte activation through STAT3 to affect postherpetic neuralgia. Mol Med 2020; 26:113. [PMID: 33225882 PMCID: PMC7681985 DOI: 10.1186/s10020-020-00232-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 10/22/2020] [Indexed: 12/29/2022] Open
Abstract
Objectives Postherpetic neuralgia (PHN) is the most common complication of herpes zoster, but the mechanism of PHN is still unclear. Activation of spinal astrocytes is involved in PHN. Our study aims to explore whether lncRNA KCNA2 antisense RNA (KCNA2-AS) regulates spinal astrocytes in PHN through signal transducers and activators of transcription 3 (STAT3). Methods Varicella zoster virus (VZV)-infected CV-1 cells were injected into rats to construct a PHN model. Primary spinal cord astrocytes were activated using S-Nitrosoglutathione (GSNO). Glial fibrillary acidic protein (GFAP; marker of astrocyte activation), phosphorylated STAT3 (pSTAT3), and KCNA2-AS were analyzed by immunofluorescence and RNA fluorescence in situ hybridization. RNA pull-down and RNA immunoprecipitation were used to detect binding of KCNA2-AS to pSTAT3. Results KCNA2-AS was highly expressed in the spinal cord tissue of PHN model rats, and was positively correlated with GFAP expression. GFAP was significantly increased in GSNO-induced cells, but the knockdown of KCNA2-AS reversed this result. Meanwhile, pSTAT3 was significantly increased in GSNO-induced cells, but knockdown of KCNA2-AS reduced pSTAT3 within the nucleus while the total pSTAT3 did not change significantly. pSTAT3 bound to KCNA2-AS and this binding increased with GSNO treatment. Furthermore, knockdown of KCNA2-AS in PHN model rats relieved mechanical allodynia. Conclusion Down-regulation of KCNA2-AS alleviates PHN partly by reducing the translocation of pSTAT3 cytoplasm to the nucleus and then inhibiting the activation of spinal astrocytes.
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Affiliation(s)
- Cunlong Kong
- Center of Pain Management, Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.
| | - Jie Du
- Outpatient and Emergency Department of West District Hospital, Children's Hospital Affiliated to Zhengzhou University, Zhengzhou, 450018, China
| | - Huilian Bu
- Center of Pain Management, Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Chen Huang
- Center of Pain Management, Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Fuxing Xu
- Center of Pain Management, Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Huan Ren
- Center of Pain Management, Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
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Wang H, Jia R, Lv T, Wang M, He S, Zhang X. Resveratrol Suppresses Tumor Progression via Inhibiting STAT3/HIF-1α/VEGF Pathway in an Orthotopic Rat Model of Non-Small-Cell Lung Cancer (NSCLC). Onco Targets Ther 2020; 13:7057-7063. [PMID: 32801741 PMCID: PMC7382608 DOI: 10.2147/ott.s259016] [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: 04/20/2020] [Accepted: 06/05/2020] [Indexed: 12/12/2022] Open
Abstract
Background The STAT3/HIF-1α/VEGF pathway is associated with the development and progress of various tumors including NSCLC. The aim of the present study was to investigate whether resveratrol (RES) could suppress NSCLC progression via inhibiting the expressions of STAT3, HIF-1α, and VEGF in a nude rat model. Methods Twenty-four nude rats were randomly divided into control, NSCLC, and NSCLC+RES groups. An orthotopic rat model of NSCLC was established. The animals in the NSCLC+RES group received the same operation as the NSCLC group and were intragastrically administered RES at 250 mg/kg/day for 12 weeks. Lung tissue samples were harvested for gross tumor burden measurement, histological examinations, RT-PCR, and Western blot assays. Results In the NSCLC+RES group, significant decreases in lung weight index, lung tumor burden, STAT3/HIF-1α/VEGF mRNA, and protein levels were observed when compared with the NSCLC group (all P<0.05). The structural integrity of the lung was less affected and the apoptotic index was significantly higher in the NSCLC+RES group, when compared to the NSCLC group (P<0.05). Conclusion RES suppresses NSCLC partly through inhibiting the expressions of STAT3, HIF-1α, and VEGF. The STAT3/HIF-1α/VEGF pathway might be a candidate drug target for developing new chemotherapy agents derived from RES for the treatment of NSCLC.
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Affiliation(s)
- Huixia Wang
- Respiratory Department, The People's Hospital of Baoji City, Baoji, Shaanxi 721000, People's Republic of China
| | - Ruzhen Jia
- Respiratory Department, The People's Hospital of Baoji City, Baoji, Shaanxi 721000, People's Republic of China
| | - Tianle Lv
- Respiratory Department, The People's Hospital of Baoji City, Baoji, Shaanxi 721000, People's Republic of China
| | - Mei Wang
- Respiratory Department, The People's Hospital of Baoji City, Baoji, Shaanxi 721000, People's Republic of China
| | - Shiwei He
- Respiratory Department, The People's Hospital of Baoji City, Baoji, Shaanxi 721000, People's Republic of China
| | - Xia Zhang
- Department of Pulmonary and Critical Care Medicine, Central Hospital of Hanzhong City, Hanzhong, Shaanxi 723000, People's Republic of China
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