1
|
Kang S, Noh Y, Oh SJ, Yoon HJ, Im S, Kwon HT, Pak YK. Neuroprotective Effects of Aldehyde-Reducing Composition in an LPS-Induced Neuroinflammation Model of Parkinson's Disease. Molecules 2023; 28:7988. [PMID: 38138478 PMCID: PMC10745824 DOI: 10.3390/molecules28247988] [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: 11/02/2023] [Revised: 11/30/2023] [Accepted: 12/06/2023] [Indexed: 12/24/2023] Open
Abstract
Parkinson's disease (PD) is a complex neurodegenerative disease in which neuroinflammation and oxidative stress interact to contribute to pathogenesis. This study investigates the in vivo neuroprotective effects of a patented yeast extract lysate in a lipopolysaccharide (LPS)-induced neuroinflammation model. The yeast extract lysate, named aldehyde-reducing composition (ARC), exhibited potent antioxidant and anti-aldehyde activities in vitro. Oral administration of ARC at 10 or 20 units/kg/day for 3 days prior to intraperitoneal injection of LPS (10 mg/kg) effectively preserved dopaminergic neurons in the substantia nigra (SN) and striatum by preventing LPS-induced cell death. ARC also normalized the activation of microglia and astrocytes in the SN, providing further evidence for its neuroprotective properties. In the liver, ARC downregulated the LPS-induced increase in inflammatory cytokines and reversed the LPS-induced decrease in antioxidant-related genes. These findings indicate that ARC exerts potent antioxidant, anti-aldehyde, and anti-inflammatory effects in vivo, suggesting its potential as a disease-modifying agent for the prevention and treatment of neuroinflammation-related diseases, including Parkinson's disease.
Collapse
Affiliation(s)
- Sora Kang
- Department of Neuroscience, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea; (S.K.); (H.J.Y.)
- Picoentech Co., Ltd., Seongnam-si 13201, Gyeong gi-do, Republic of Korea; (Y.N.); (H.T.K.)
| | - Youngjin Noh
- Picoentech Co., Ltd., Seongnam-si 13201, Gyeong gi-do, Republic of Korea; (Y.N.); (H.T.K.)
| | - Seung Jun Oh
- Department of Biomedical Sciences, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea; (S.J.O.); (S.I.)
| | - Hye Ji Yoon
- Department of Neuroscience, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea; (S.K.); (H.J.Y.)
| | - Suyeol Im
- Department of Biomedical Sciences, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea; (S.J.O.); (S.I.)
| | - Hung Taeck Kwon
- Picoentech Co., Ltd., Seongnam-si 13201, Gyeong gi-do, Republic of Korea; (Y.N.); (H.T.K.)
| | - Youngmi Kim Pak
- Department of Neuroscience, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea; (S.K.); (H.J.Y.)
- Department of Biomedical Sciences, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea; (S.J.O.); (S.I.)
- Department of Physiology, College of Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| |
Collapse
|
2
|
Lee AG, Kang S, Yoon HJ, Im S, Oh SJ, Pak YK. Polystyrene Microplastics Exacerbate Systemic Inflammation in High-Fat Diet-Induced Obesity. Int J Mol Sci 2023; 24:12421. [PMID: 37569796 PMCID: PMC10419071 DOI: 10.3390/ijms241512421] [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: 07/15/2023] [Revised: 07/31/2023] [Accepted: 08/02/2023] [Indexed: 08/13/2023] Open
Abstract
Microplastics (MPs) are recognized as environmental pollutants with potential implications for human health. Considering the rapid increase in obesity rates despite stable caloric intake, there is a growing concern about the link between obesity and exposure to environmental pollutants, including MPs. In this study, we conducted a comprehensive investigation utilizing in silico, in vitro, and in vivo approaches to explore the brain distribution and physiological effects of MPs. Molecular docking simulations were performed to assess the binding affinity of three plastic polymers (ethylene, propylene, and styrene) to immune cells (macrophages, CD4+, and CD8+ lymphocytes). The results revealed that styrene exhibited the highest binding affinity for macrophages. Furthermore, in vitro experiments employing fluorescence-labeled PS-MPs (fPS-MPs) of 1 μm at various concentrations demonstrated a dose-dependent binding of fPS-MPs to BV2 murine microglial cells. Subsequent oral administration of fPS-MPs to high-fat diet-induced obese mice led to the co-existence of fPS-MPs with immune cells in the blood, exacerbating impaired glucose metabolism and insulin resistance and promoting systemic inflammation. Additionally, fPS-MPs were detected throughout the brain, with increased activation of microglia in the hypothalamus. These findings suggest that PS-MPs significantly contribute to the exacerbation of systemic inflammation in high-fat diet-induced obesity by activating peripheral and central inflammatory immune cells.
Collapse
Affiliation(s)
| | - Sora Kang
- Department of Neuroscience, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea; (S.K.); (H.J.Y.)
| | - Hye Ji Yoon
- Department of Neuroscience, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea; (S.K.); (H.J.Y.)
| | - Suyeol Im
- Department of Biomedical Sciences, Graduate School, Kyung Hee University, Seoul 02447,Republic of Korea; (S.I.); (S.J.O.)
| | - Seung Jun Oh
- Department of Biomedical Sciences, Graduate School, Kyung Hee University, Seoul 02447,Republic of Korea; (S.I.); (S.J.O.)
| | - Youngmi Kim Pak
- Department of Neuroscience, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea; (S.K.); (H.J.Y.)
- Department of Biomedical Sciences, Graduate School, Kyung Hee University, Seoul 02447,Republic of Korea; (S.I.); (S.J.O.)
- Department of Physiology, School of Medicine, Biomedical Science Institute, Kyung Hee University, Seoul 02447, Republic of Korea
| |
Collapse
|
3
|
Kang S, Lee AG, Im S, Oh SJ, Yoon HJ, Park JH, Pak YK. A Novel Aryl Hydrocarbon Receptor Antagonist HBU651 Ameliorates Peripheral and Hypothalamic Inflammation in High-Fat Diet-Induced Obese Mice. Int J Mol Sci 2022; 23:ijms232314871. [PMID: 36499198 PMCID: PMC9736602 DOI: 10.3390/ijms232314871] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 11/21/2022] [Accepted: 11/25/2022] [Indexed: 11/29/2022] Open
Abstract
Obesity is a chronic peripheral inflammation condition that is strongly correlated with neurodegenerative diseases and associated with exposure to environmental chemicals. The aryl hydrocarbon receptor (AhR) is a ligand-activated nuclear receptor activated by environmental chemical, such as dioxins, and also is a regulator of inflammation through interacting with nuclear factor (NF)-κB. In this study, we evaluated the anti-obesity and anti-inflammatory activity of HBU651, a novel AhR antagonist. In BV2 microglia cells, HBU651 successfully inhibited lipopolysaccharide (LPS)-mediated nuclear localization of NF-κB and production of NF-κB-dependent proinflammatory cytokines, such as tumor necrosis factor (TNF)-α, interleukin (IL)-1β, and IL-6. It also restored LPS-induced mitochondrial dysfunction. While mice being fed a high-fat diet (HFD) induced peripheral and central inflammation and obesity, HBU651 alleviated HFD-induced obesity, insulin resistance, glucose intolerance, dyslipidemia, and liver enzyme activity, without hepatic and renal damage. HBU651 ameliorated the production of inflammatory cytokines and chemokines, proinflammatory Ly6chigh monocytes, and macrophage infiltration in the blood, liver, and adipose tissue. HBU651 also decreased microglial activation in the arcuate nucleus in the hypothalamus. These findings suggest that HBU651 may be a potential candidate for the treatment of obesity-related metabolic diseases.
Collapse
Affiliation(s)
- Sora Kang
- Department of Neuroscience, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea
- Department of Physiology, School of Medicine, Biomedical Science Institute, Kyung Hee University, Seoul 02447, Republic of Korea
| | | | - Suyeol Im
- Department of Biomedical Sciences, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Seung Jun Oh
- Department of Biomedical Sciences, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Hye Ji Yoon
- Department of Neuroscience, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Jeong Ho Park
- Department of Chemical & Biological Engineering, Hanbat National University, 125 Dongseodaero, Dukmyung-Dong, Yuseong-Gu, Daejeon 34158, Republic of Korea
| | - Youngmi Kim Pak
- Department of Neuroscience, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea
- Department of Physiology, School of Medicine, Biomedical Science Institute, Kyung Hee University, Seoul 02447, Republic of Korea
- Department of Biomedical Sciences, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea
- Correspondence: ; Tel.: +82-2-961-0908
| |
Collapse
|
4
|
Zhang J, Xue B, Jing B, Tian H, Zhang N, Li M, Lu L, Chen L, Diao H, Chen Y, Wang M, Li X. LPS activates neuroinflammatory pathways to induce depression in Parkinson’s disease-like condition. Front Pharmacol 2022; 13:961817. [PMID: 36278237 PMCID: PMC9582846 DOI: 10.3389/fphar.2022.961817] [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: 06/05/2022] [Accepted: 09/22/2022] [Indexed: 11/13/2022] Open
Abstract
Aim: This study aimed to observe the effects of lipopolysaccharide (LPS) intraperitoneal (i.p.) injection on rats and investigate how neuroinflammation contributes to the pathogenesis of depression in Parkinson’s disease (dPD). Methods: Rats were administered LPS (0.5 mg/kg, i.p.) for either 1, 2, or 4 consecutive days to establish a rat model of dPD. The sucrose preference test (SPT), the open field test (OFT), and the rotarod test evaluated depression-like and motor behaviors. Magnetic resonance imaging was used to detect alterations in the intrinsic activity and the integrity of white matter fibers in the brain. The expression of c-Fos, ionized calcium-binding adapter molecule (Iba-1), and tyrosine hydroxylase (TH) was evaluated using immunohistochemistry. The concentration of interleukin-6 (IL-6), tumor necrosis factor (TNF-α), and interleukin-10 (IL-10) was measured using Luminex technology. Results: LPS i.p. injections decreased sucrose preference in the SPT, horizontal and center distance in the OFT, and standing time in the rotarod test. The intrinsic activities in the hippocampus (HIP) were significantly reduced in the LPS-4 d group. The integrity of white matter fibers was greatly destroyed within 4 days of LPS treatment. The expression of c-Fos and Iba-1 in the prefrontal cortex, HIP, and substantia nigra increased dramatically, and the number of TH+ neurons in the substantia nigra decreased considerably after LPS injection. The levels of IL-6, TNF-α, and IL-10 were higher in the LPS-4 d group than those in the control group. Conclusion: Injection of LPS (0.5 mg/kg, i.p.) for 4 consecutive days can activate microglia, cause the release of inflammatory cytokines, reduce intrinsic activities in the HIP, destroy the integrity of white matter fibers, induce anhedonia and behavioral despair, and finally lead to dPD. This study proved that LPS injection (0.5 mg/kg, i.p.) for 4 consecutive days could be used to successfully create a rat model of dPD.
Collapse
Affiliation(s)
- Jing Zhang
- Third Affiliated Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Bing Xue
- Core Facility Center, Capital Medical University, Beijing, China
| | - Bin Jing
- School of Biomedical Engineering, Capital Medical University, Beijing, China
| | - Huiling Tian
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Naiwen Zhang
- Third Affiliated Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Mengyuan Li
- Third Affiliated Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Lihua Lu
- Third Affiliated Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Lin Chen
- Third Affiliated Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Huaqiong Diao
- Third Affiliated Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Yufei Chen
- Third Affiliated Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Min Wang
- Third Affiliated Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Xiaoli Li
- Third Affiliated Hospital, Beijing University of Chinese Medicine, Beijing, China
- *Correspondence: Xiaoli Li,
| |
Collapse
|