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Kim M, Yoon M, Cho S, Lee C, Um MY. γ-Oryzanol Ameliorates Depressive Behavior in Ovariectomized Mice by Regulating Hippocampal Nitric Oxide Synthase: A Potential Therapy for Menopausal Depression. Mol Nutr Food Res 2024; 68:e2300253. [PMID: 38054627 DOI: 10.1002/mnfr.202300253] [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: 04/23/2023] [Revised: 07/18/2023] [Indexed: 12/07/2023]
Abstract
SCOPE Depression is a severe mental condition, common among menopausal women. γ-Oryzanol (ORY) has various biological properties; however, the effect of ORY on menopausal depression and its underlying mechanisms have not been investigated. METHODS AND RESULTS ORY is orally administered to ovariectomized (OVX) mice for 20 weeks. ORY administration results in lower immobility time in the tail suspension and forced swim test and increases locomotor activity in the open field test. In the primary hippocampal neurons and hippocampi of OVX mice, ORY treatment increases nitric oxide (NO) production and neuronal NO synthase (nNOS) expression. Further, the phosphorylation of extracellular signal-regulated kinase (ERK), cAMP response element-binding protein (CREB), and tropomyosin receptor kinase B, along with the expression of brain-derived neurotrophic factior (BDNF), is upregulated. These stimulatory effects of ORY are diminished by treatment with estrogen receptor β (ERβ) antagonist. ORY similarly interacts with ERβ in the molecular docking analysis. Moreover, intracerebroventricular injection of 7-nitroindazole, a nNOS inhibitor, abolishes the antidepressant effects of ORY. CONCLUSIONS The results indicate that ORY attenuates depressive behavior in OVX mice by upregulating ERβ-mediated hippocampal nNOS expression and activating the ERK-CREB-BDNF signaling networks. The findings suggest that ORY is a potential therapeutic agent for attenuating menopausal depression.
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Affiliation(s)
- Minji Kim
- Division of Functional Food Research, Korea Food Research Institute, Wanju, 55365, Republic of Korea
- Department of Food Biotechnology, University of Science & Technology, Daejeon, 34113, Republic of Korea
| | - Minseok Yoon
- Division of Functional Food Research, Korea Food Research Institute, Wanju, 55365, Republic of Korea
| | - Suengmok Cho
- Department of Food Science and Technology/Institute of Food Science, Pukyong National University, Busan, 48513, Republic of Korea
| | - Changho Lee
- Division of Functional Food Research, Korea Food Research Institute, Wanju, 55365, Republic of Korea
| | - Min Young Um
- Division of Functional Food Research, Korea Food Research Institute, Wanju, 55365, Republic of Korea
- Department of Food Biotechnology, University of Science & Technology, Daejeon, 34113, Republic of Korea
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Kim JH, Lee ST. Polyamine Oxidase Expression Is Downregulated by 17β-Estradiol via Estrogen Receptor 2 in Human MCF-7 Breast Cancer Cells. Int J Mol Sci 2022; 23:ijms23147521. [PMID: 35886868 PMCID: PMC9317983 DOI: 10.3390/ijms23147521] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 07/02/2022] [Accepted: 07/04/2022] [Indexed: 02/05/2023] Open
Abstract
Polyamine levels decrease with menopause; however, little is known about the mechanisms regulated by menopause. In this study, we found that among the genes involved in the polyamine pathway, polyamine oxidase (PAOX) mRNA levels were the most significantly reduced by treatment with 17β-estradiol in estrogen receptor (ESR)-positive MCF-7 breast cancer cells. Treatment with 17β-estradiol also reduced the PAOX protein levels. Treatment with selective ESR antagonists and knockdown of ESR members revealed that estrogen receptor 2 (ESR2; also known as ERβ) was responsible for the repression of PAOX by 17β-estradiol. A luciferase reporter assay showed that 17β-estradiol downregulates PAOX promoter activity and that 17β-estradiol-dependent PAOX repression disappeared after deletions (−3126/−2730 and −1271/−1099 regions) or mutations of activator protein 1 (AP-1) binding sites in the PAOX promoter. Chromatin immunoprecipitation analysis showed that ESR2 interacts with AP-1 bound to each of the two AP-1 binding sites. These results demonstrate that 17β-estradiol represses PAOX transcription by the interaction of ESR2 with AP-1 bound to the PAOX promoter. This suggests that estrogen deficiency may upregulate PAOX expression and decrease polyamine levels.
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Li G, Liang R, Lian Y, Zhou Y. Circ_0002945 functions as a competing endogenous RNA to promote Aβ25-35-induced endoplasmic reticulum stress and apoptosis in SK-N-SH cells and human primary neurons. Brain Res 2022; 1785:147878. [DOI: 10.1016/j.brainres.2022.147878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Revised: 02/10/2022] [Accepted: 03/07/2022] [Indexed: 11/02/2022]
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TNFAIP1 Is Upregulated in APP/PS1 Mice and Promotes Apoptosis in SH-SY5Y Cells by Binding to RhoB. J Mol Neurosci 2020; 71:1221-1233. [PMID: 33159672 DOI: 10.1007/s12031-020-01748-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Accepted: 10/27/2020] [Indexed: 11/26/2022]
Abstract
Alzheimer's disease (AD) poses a significant threat to human life and health. The intraneuronal accumulation of β-amyloid (Aβ) plaques in the brains of AD patients results in neuronal cell death, which is a key factor that triggers multiple changes in the pathogenesis of AD. The inhibition of Aβ-induced neuronal cell death may potentially help in the intervention and treatment of AD. Our previous study reported that tumor necrosis factor α-induced protein 1 (TNFAIP1) is induced by and promotes Aβ25-35-induced neurotoxicity in mouse neuronal cells, but the roles and regulatory mechanisms of TNFAIP1 are still largely unknown. In this study, our experimental results show that TNFAIP1 and p-TNFAIP1 (phosphorylation of TNFAIP1 at Ser280) are overexpressed in the neurons of the cortex and hippocampus in the brains of APP/PS1 mice, and the transcription factor NF-κB is involved in the Aβ-induced upregulation of TNFAIP1. Moreover, our results suggest that TNFAIP1 contributes to the Aβ-induced reactive oxygen species (ROS) production, decreased mitochondrial membrane potential (∆Ψm), and neuronal cell death in human SH-SY5Y cells. We further revealed that Aβ increases the binding of TNFAIP1 to RhoB, and knockdown of RhoB attenuates the TNFAIP1-induced apoptosis of human SH-SY5Y cells. These data suggest that TNFAIP1 is closely associated with AD pathogenesis, and overexpression of TNFAIP1 in the neurons of the brains of AD patients plays a role in apoptosis, at least in part, via RhoB signaling.
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Wnuk A, Kajta M. Steroid and Xenobiotic Receptor Signalling in Apoptosis and Autophagy of the Nervous System. Int J Mol Sci 2017; 18:ijms18112394. [PMID: 29137141 PMCID: PMC5713362 DOI: 10.3390/ijms18112394] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Revised: 11/06/2017] [Accepted: 11/09/2017] [Indexed: 12/15/2022] Open
Abstract
Apoptosis and autophagy are involved in neural development and in the response of the nervous system to a variety of insults. Apoptosis is responsible for cell elimination, whereas autophagy can eliminate the cells or keep them alive, even in conditions lacking trophic factors. Therefore, both processes may function synergistically or antagonistically. Steroid and xenobiotic receptors are regulators of apoptosis and autophagy; however, their actions in various pathologies are complex. In general, the estrogen (ER), progesterone (PR), and mineralocorticoid (MR) receptors mediate anti-apoptotic signalling, whereas the androgen (AR) and glucocorticoid (GR) receptors participate in pro-apoptotic pathways. ER-mediated neuroprotection is attributed to estrogen and selective ER modulators in apoptosis- and autophagy-related neurodegenerative diseases, such as Alzheimer’s and Parkinson’s diseases, stroke, multiple sclerosis, and retinopathies. PR activation appeared particularly effective in treating traumatic brain and spinal cord injuries and ischemic stroke. Except for in the retina, activated GR is engaged in neuronal cell death, whereas MR signalling appeared to be associated with neuroprotection. In addition to steroid receptors, the aryl hydrocarbon receptor (AHR) mediates the induction and propagation of apoptosis, whereas the peroxisome proliferator-activated receptors (PPARs) inhibit this programmed cell death. Most of the retinoid X receptor-related xenobiotic receptors stimulate apoptotic processes that accompany neural pathologies. Among the possible therapeutic strategies based on targeting apoptosis via steroid and xenobiotic receptors, the most promising are the selective modulators of the ER, AR, AHR, PPARγ agonists, flavonoids, and miRNAs. The prospective therapies to overcome neuronal cell death by targeting autophagy via steroid and xenobiotic receptors are much less recognized.
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Affiliation(s)
- Agnieszka Wnuk
- Institute of Pharmacology, Polish Academy of Sciences, Department of Experimental Neuroendocrinology, Smetna Street 12, 31-343 Krakow, Poland.
| | - Małgorzata Kajta
- Institute of Pharmacology, Polish Academy of Sciences, Department of Experimental Neuroendocrinology, Smetna Street 12, 31-343 Krakow, Poland.
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Liu N, Yu Z, Xun Y, Li M, Peng X, Xiao Y, Hu X, Sun Y, Yang M, Gan S, Yuan S, Wang X, Xiang S, Zhang J. TNFAIP1 contributes to the neurotoxicity induced by Aβ25-35 in Neuro2a cells. BMC Neurosci 2016; 17:51. [PMID: 27430312 PMCID: PMC4949755 DOI: 10.1186/s12868-016-0286-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Accepted: 07/08/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Amyloid-beta (Aβ) accumulation is a hallmark of Alzheimer's disease (AD) that can lead to neuronal dysfunction and apoptosis. Tumor necrosis factor, alpha-induced protein 1 (TNFAIP1) is an apoptotic protein that was robustly induced in the transgenic C. elegans AD brains. However, the roles of TNFAIP1 in AD have not been investigated. RESULTS We found TNFAIP1 protein and mRNA levels were dramatically elevated in primary mouse cortical neurons and Neuro2a (N2a) cells exposed to Aβ25-35. Knockdown and overexpression of TNFAIP1 significantly attenuated and exacerbated Aβ25-35-induced neurotoxicity in N2a cells, respectively. Further studies showed that TNFAIP1 knockdown significantly blocked Aβ25-35-induced cleaved caspase 3, whereas TNFAIP1 overexpression enhanced Aβ25-35-induced cleaved caspase 3, suggesting that TNFAIP1 plays an important role in Aβ25-35-induced neuronal apoptosis. Moreover, we observed that TNFAIP1 was capable of inhibiting the levels of phosphorylated Akt and CREB, and also anti-apoptotic protein Bcl-2. TNFAIP1 overexpression enhanced the inhibitory effect of Aβ25-35 on the levels of p-CREB and Bcl-2, while TNFAIP1 knockdown reversed Aβ25-35-induced attenuation in the levels of p-CREB and Bcl-2. CONCLUSION These results suggested that TNFAIP1 contributes to Aβ25-35-induced neurotoxicity by attenuating Akt/CREB signaling pathway, and Bcl-2 expression.
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Affiliation(s)
- Ning Liu
- College of Medicine, Hunan Normal University, Changsha, China.,Key Laboratory of Protein Chemistry and Development Biology of State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha, 410081, China.,Neuroprotection Research Laboratory, Department of Neurology and Radiology, Massachusetts General Hospital, Neuroscience Program, Harvard Medical School, Boston, MA, USA
| | - Zhanyang Yu
- Neuroprotection Research Laboratory, Department of Neurology and Radiology, Massachusetts General Hospital, Neuroscience Program, Harvard Medical School, Boston, MA, USA
| | - Yu Xun
- Key Laboratory of Protein Chemistry and Development Biology of State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha, 410081, China
| | - Miaomiao Li
- Key Laboratory of Protein Chemistry and Development Biology of State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha, 410081, China
| | - Xiaoning Peng
- College of Medicine, Hunan Normal University, Changsha, China
| | - Ye Xiao
- Key Laboratory of Protein Chemistry and Development Biology of State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha, 410081, China
| | - Xiang Hu
- Key Laboratory of Protein Chemistry and Development Biology of State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha, 410081, China
| | - Yi Sun
- Department of Pathology, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Manjun Yang
- Key Laboratory of Protein Chemistry and Development Biology of State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha, 410081, China
| | - Shiquan Gan
- Key Laboratory of Protein Chemistry and Development Biology of State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha, 410081, China
| | - Shishan Yuan
- College of Medicine, Hunan Normal University, Changsha, China
| | - Xiaoying Wang
- Neuroprotection Research Laboratory, Department of Neurology and Radiology, Massachusetts General Hospital, Neuroscience Program, Harvard Medical School, Boston, MA, USA
| | - Shuanglin Xiang
- Key Laboratory of Protein Chemistry and Development Biology of State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha, 410081, China.
| | - Jian Zhang
- Key Laboratory of Protein Chemistry and Development Biology of State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha, 410081, China.
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Liu N, Wei K, Xun Y, Yang X, Gan S, Xiao H, Xiao Y, Yan F, Xie G, Wang T, Yang Y, Zhang J, Hu X, Xiang S. Transcription factor cyclic adenosine monophosphate responsive element binding protein negatively regulates tumor necrosis factor alpha-induced protein 1 expression. Mol Med Rep 2015; 12:7763-9. [PMID: 26398148 DOI: 10.3892/mmr.2015.4336] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2014] [Accepted: 08/17/2015] [Indexed: 11/05/2022] Open
Abstract
Tumor necrosis factor alpha (TNFα)-induced protein 1 (TNFAIP1) was originally identified as a protein involved in DNA replication, DNA damage repair, apoptosis and the progression of certain diseases, such as Alzheimer's disease. In the present study, forskolin, a stimulant of cyclic adenosine monophosphate (cAMP), was found to significantly reduce human TNFAIP1 mRNA levels and TNFAIP1 promoter activity in the SKNSH human neuroblastoma cell line as indicated by polymerase chain reaction analysis and a luciferase reporter assay. The association between transcription factor cAMP response element‑binding protein (CREB) and TNFAIP1 was further investigated using loss- and gain of function-studies with western blot analysis and luciferase reporter assays. The CREB-specific inhibitor KG‑501 significantly increased TNFAIP1 protein levels, while overexpression of wild‑type CREB, but not CREB mutated at ser133a or its DNA-binding site, significantly decreased human TNFAIP1 protein levels and TNFAIP1 promoter activity in SKNSH cells. Furthermore, two CRE sites located at ‑285 and ‑425 bp of the human TNFAIP1 promoter were identified to be responsible for CREB‑induced inhibition of human TNFAIP1 promoter activity. Chromatin immunoprecipitation assays confirmed that CREB bound to the TNFAIP1 promoter region harboring these two CRE sites. A further luciferase reporter assay demonstrated that CREB phosphorylation on ser133 was responsible for forskolin‑induced inhibition of TNFAIP1 expression. In conclusion, the present study suggested that CREB is a negative regulator of the TNFAIP1 gene.
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Affiliation(s)
- Ning Liu
- Key Laboratory of Protein Chemistry and Developmental Biology of the Education Ministry of China, College of Life Science, Hunan Normal University, Changsha, Hunan 410081, P.R. China
| | - Ke Wei
- Key Laboratory of Protein Chemistry and Developmental Biology of the Education Ministry of China, College of Life Science, Hunan Normal University, Changsha, Hunan 410081, P.R. China
| | - Yu Xun
- Key Laboratory of Protein Chemistry and Developmental Biology of the Education Ministry of China, College of Life Science, Hunan Normal University, Changsha, Hunan 410081, P.R. China
| | - Xiaoxu Yang
- Key Laboratory of Protein Chemistry and Developmental Biology of the Education Ministry of China, College of Life Science, Hunan Normal University, Changsha, Hunan 410081, P.R. China
| | - Shiquan Gan
- Key Laboratory of Protein Chemistry and Developmental Biology of the Education Ministry of China, College of Life Science, Hunan Normal University, Changsha, Hunan 410081, P.R. China
| | - Hui Xiao
- Key Laboratory of Protein Chemistry and Developmental Biology of the Education Ministry of China, College of Life Science, Hunan Normal University, Changsha, Hunan 410081, P.R. China
| | - Ye Xiao
- Key Laboratory of Protein Chemistry and Developmental Biology of the Education Ministry of China, College of Life Science, Hunan Normal University, Changsha, Hunan 410081, P.R. China
| | - Feng Yan
- Key Laboratory of Protein Chemistry and Developmental Biology of the Education Ministry of China, College of Life Science, Hunan Normal University, Changsha, Hunan 410081, P.R. China
| | - Guie Xie
- Key Laboratory of Protein Chemistry and Developmental Biology of the Education Ministry of China, College of Life Science, Hunan Normal University, Changsha, Hunan 410081, P.R. China
| | - Tingting Wang
- Key Laboratory of Protein Chemistry and Developmental Biology of the Education Ministry of China, College of Life Science, Hunan Normal University, Changsha, Hunan 410081, P.R. China
| | - Yinke Yang
- Department of Molecular Medicine, College of Biology, Hunan University, Changsha, Hunan 410081, P.R. China
| | - Jian Zhang
- Key Laboratory of Protein Chemistry and Developmental Biology of the Education Ministry of China, College of Life Science, Hunan Normal University, Changsha, Hunan 410081, P.R. China
| | - Xiang Hu
- Key Laboratory of Protein Chemistry and Developmental Biology of the Education Ministry of China, College of Life Science, Hunan Normal University, Changsha, Hunan 410081, P.R. China
| | - Shuanglin Xiang
- Key Laboratory of Protein Chemistry and Developmental Biology of the Education Ministry of China, College of Life Science, Hunan Normal University, Changsha, Hunan 410081, P.R. China
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