1
|
Park SY, Kim MW, Kang JH, Jung HJ, Hwang JH, Yang SJ, Woo JK, Jeon Y, Lee H, Yoon YS, Seong JK, Oh SH. Novel NF-κB reporter mouse for the non-invasive monitoring of inflammatory diseases. Sci Rep 2023; 13:3556. [PMID: 36864088 PMCID: PMC9981691 DOI: 10.1038/s41598-023-29689-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 02/08/2023] [Indexed: 03/04/2023] Open
Abstract
Bioluminescence imaging is useful for non-invasively monitoring inflammatory reactions associated with disease progression, and since NF-κB is a pivotal transcription factor that alters expressions of inflammatory genes, we generated novel NF-κB luciferase reporter (NF-κB-Luc) mice to understand the dynamics of inflammatory responses in whole body, and also in various type of cells by crossing NF-κB-Luc mice with cell-type specific Cre expressing mice (NF-κB-Luc:[Cre]). Bioluminescence intensity was significantly increased in NF-κB-Luc (NKL) mice exposed to inflammatory stimuli (PMA or LPS). Crossing NF-κB-Luc mice with Alb-cre mice or Lyz-cre mice generated NF-κB-Luc:Alb (NKLA) and NF-κB-Luc:Lyz2 (NKLL) mice, respectively. NKLA and NKLL mice showed enhanced bioluminescence in liver and macrophages, respectively. To confirm that our reporter mice could be utilized for the non-invasive monitoring of inflammation in preclinical models, we conducted a DSS-induced colitis model and a CDAHFD-induced NASH model in our reporter mice. In both models, our reporter mice reflected the development of these diseases over time. In conclusion, we believe that our novel reporter mouse can be utilized as a non-invasive monitoring platform for inflammatory diseases.
Collapse
Affiliation(s)
- Se Yong Park
- College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Min Woo Kim
- College of Veterinary Medicine, Konkuk University, Seoul, Republic of Korea
| | - Ju-Hee Kang
- College of Pharmacy, Gachon University, Incheon, Republic of Korea
| | - Hyun Jin Jung
- College of Pharmacy, Gachon University, Incheon, Republic of Korea
| | - Jung Ho Hwang
- College of Pharmacy, Gachon University, Incheon, Republic of Korea
| | - Soo Jung Yang
- College of Pharmacy, Gachon University, Incheon, Republic of Korea
| | - Jong Kyu Woo
- Korea Mouse Phenotyping Center (KMPC), College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Yoon Jeon
- Graduate School of Cancer Science and Policy, Research Institute, National Cancer Center, Goyang, Republic of Korea
| | - Ho Lee
- Graduate School of Cancer Science and Policy, Research Institute, National Cancer Center, Goyang, Republic of Korea
| | - Yeo Sung Yoon
- College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Je Kyung Seong
- Korea Mouse Phenotyping Center (KMPC), College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea.
| | - Seung Hyun Oh
- College of Pharmacy, Gachon University, Incheon, Republic of Korea.
| |
Collapse
|
2
|
Qi W, Zeng D, Xiong X, Hu Q. Knockdown of SEMA7A alleviates MPP + -induced apoptosis and inflammation in BV2 microglia via PPAR-γ activation and MAPK inactivation. Immun Inflamm Dis 2023; 11:e756. [PMID: 36705403 PMCID: PMC9837934 DOI: 10.1002/iid3.756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 11/10/2022] [Accepted: 11/30/2022] [Indexed: 01/15/2023] Open
Abstract
INTRODUCTION The inflammation mediated by microglial cells plays an important role in the process of neurodegenerative diseases. Recent evidence indicates that semaphorin 7A (SEMA7A) is implicated in various neurodegenerative diseases, but whether it plays a role in Parkinson's disease (PD) remains unclear. METHODS In this study, 1.0 mmol/L 1-methyl-4-phenylpyridinium (MPP+ )-stimulated mouse microglia (BV2) cells were used as an in vitro model of PD. The expression of SEMA7A was detected by quantitative polymerase chain reaction. Cell Counting Kit-8 and apoptosis kits were used to analyze the viability and apoptosis of BV-2 cells. The content of IL-6, IL-β, and tumor necrosis factor-α was determined by ELISA (enzyme-linked immunosorbent assay) kit. Western blot was used to detect the protein expression level of the inducible NO synthase and cyclooxygenase-2. RESULTS Our findings indicated that SEMA7A expression in BV2 cells was upregulated after MPP+ stimulation. Knockdown of SEMA7A promoted cell viability while it inhibited apoptosis and the expression of proinflammatory enzymes and proinflammatory cytokines. Silencing SEMA7A-induced peroxisome proliferator-activated receptor-gamma (PPAR-γ) activation and mitogen-activated protein kinase (MAPK) signaling pathway inactivation. Furthermore, a PPAR-γ inhibitor and an MAPK activator promoted the effect of MPP+ on cell viability, apoptosis, and inflammation of BV2 cells; what is more, the PPAR-γ inhibitor and MAPK activator blocked the inhibitory effect of SEMA7A downregulation on MPP+ -induced injury. CONCLUSION In general, knockdown of SEMA7A inhibits MPP+ -induced BV2 cell apoptosis and inflammation via PPAR-γ activation and MAPK inactivation, which may provide a new therapy target for PD.
Collapse
Affiliation(s)
- Weinan Qi
- Department of NeurologyYantian District People's HospitalShenzhenChina
| | - Dan Zeng
- Department of RadiologyYantian District People's HospitalShenzhenChina
| | - Xiaoshuan Xiong
- Department of CardiologyYantian District People's HospitalShenzhenChina
| | - Qun Hu
- Department of AnesthesiologyYichun People's HospitalYichunChina
| |
Collapse
|
3
|
Zhang S, Sun Z, Jiang X, Lu Z, Ding L, Li C, Tian X, Wang Q. Ferroptosis increases obesity: Crosstalk between adipocytes and the neuroimmune system. Front Immunol 2022; 13:1049936. [PMID: 36479119 PMCID: PMC9720262 DOI: 10.3389/fimmu.2022.1049936] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Accepted: 11/07/2022] [Indexed: 11/22/2022] Open
Abstract
Ferroptosis requires not only the accumulation of iron ions, but also changes in many ferroptosis-related regulators, including a decrease in GPX4 and inhibition of SLC7A11 for classical ferroptosis, a deletion of FSP1 or GCH1. Surprisingly, adipose tissue (AT) in the obesity conditions is also accompanied by iron buildup, decreased GSH, and increased ROS. On the neurological side, the pro-inflammatory factor released by AT may have first caused ferroptosis in the vagus nerve by inhibiting of the NRF2-GPX4 pathway, resulting in disorders of the autonomic nervous system. On the immune side, obesity may cause M2 macrophages ferroptosis due to damage to iron-rich ATMs (MFehi) and antioxidant ATMs (Mox), and lead to Treg cells ferroptosis through reductions in NRF2, GPX4, and GCH1 levels. At the same time, the reduction in GPX4 may also trigger the ferroptosis of B1 cells. In addition, some studies have also found the role of GPX4 in neutrophil autophagy, which is also worth pondering whether there is a connection with ferroptosis. In conclusion, this review summarizes the associations between neuroimmune regulation associated with obesity and ferroptosis, and on the basis of this, highlights their potential molecular mechanisms, proposing that ferroptosis in one or more cells in a multicellular tissue changes the fate of that tissue.
Collapse
Affiliation(s)
| | | | | | | | | | | | - Xuewen Tian
- *Correspondence: Xuewen Tian, ; Qinglu Wang,
| | - Qinglu Wang
- *Correspondence: Xuewen Tian, ; Qinglu Wang,
| |
Collapse
|
4
|
Cuenca-Bermejo L, Almela P, Navarro-Zaragoza J, Fernández Villalba E, González-Cuello AM, Laorden ML, Herrero MT. Cardiac Changes in Parkinson's Disease: Lessons from Clinical and Experimental Evidence. Int J Mol Sci 2021; 22:13488. [PMID: 34948285 PMCID: PMC8705692 DOI: 10.3390/ijms222413488] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 12/10/2021] [Accepted: 12/11/2021] [Indexed: 01/18/2023] Open
Abstract
Dysautonomia is a common non-motor symptom in Parkinson's disease (PD). Most dysautonomic symptoms appear due to alterations in the peripheral nerves of the autonomic nervous system, including both the sympathetic and parasympathetic nervous systems. The degeneration of sympathetic nerve fibers and neurons leads to cardiovascular dysfunction, which is highly prevalent in PD patients. Cardiac alterations such as orthostatic hypotension, heart rate variability, modifications in cardiogram parameters and baroreflex dysfunction can appear in both the early and late stages of PD, worsening as the disease progresses. In PD patients it is generally found that parasympathetic activity is decreased, while sympathetic activity is increased. This situation gives rise to an imbalance of both tonicities which might, in turn, promote a higher risk of cardiac damage through tachycardia and vasoconstriction. Cardiovascular abnormalities can also appear as a side effect of PD treatment: L-DOPA can decrease blood pressure and aggravate orthostatic hypotension as a result of a negative inotropic effect on the heart. This unwanted side effect limits the therapeutic use of L-DOPA in geriatric patients with PD and can contribute to the number of hospital admissions. Therefore, it is essential to define the cardiac features related to PD for the monitorization of the heart condition in parkinsonian individuals. This information can allow the application of intervention strategies to improve the course of the disease and the proposition of new alternatives for its treatment to eliminate or reverse the motor and non-motor symptoms, especially in geriatric patients.
Collapse
Affiliation(s)
- Lorena Cuenca-Bermejo
- Clinical and Experimental Neuroscience Group/Biomedical Research Institute of Murcia (NiCE-IMIB)/Institute for Aging Research, School of Medicine, University of Murcia, 30100 Murcia, Spain; (L.C.-B.); (A.-M.G.-C.)
| | - Pilar Almela
- Department of Pharmacology, School of Medicine, Biomedical Research Institute of Murcia (IMIB), University of Murcia, 30100 Murcia, Spain; (P.A.); (J.N.-Z.); (M.-L.L.)
| | - Javier Navarro-Zaragoza
- Department of Pharmacology, School of Medicine, Biomedical Research Institute of Murcia (IMIB), University of Murcia, 30100 Murcia, Spain; (P.A.); (J.N.-Z.); (M.-L.L.)
| | - Emiliano Fernández Villalba
- Clinical and Experimental Neuroscience Group/Biomedical Research Institute of Murcia (NiCE-IMIB)/Institute for Aging Research, School of Medicine, University of Murcia, 30100 Murcia, Spain; (L.C.-B.); (A.-M.G.-C.)
| | - Ana-María González-Cuello
- Clinical and Experimental Neuroscience Group/Biomedical Research Institute of Murcia (NiCE-IMIB)/Institute for Aging Research, School of Medicine, University of Murcia, 30100 Murcia, Spain; (L.C.-B.); (A.-M.G.-C.)
| | - María-Luisa Laorden
- Department of Pharmacology, School of Medicine, Biomedical Research Institute of Murcia (IMIB), University of Murcia, 30100 Murcia, Spain; (P.A.); (J.N.-Z.); (M.-L.L.)
| | - María-Trinidad Herrero
- Clinical and Experimental Neuroscience Group/Biomedical Research Institute of Murcia (NiCE-IMIB)/Institute for Aging Research, School of Medicine, University of Murcia, 30100 Murcia, Spain; (L.C.-B.); (A.-M.G.-C.)
| |
Collapse
|
5
|
Metzger JM, Matsoff HN, Vu D, Zinnen AD, Jones KM, Bondarenko V, Simmons HA, Moore CF, Emborg ME. Myelin Basic Protein and Cardiac Sympathetic Neurodegeneration in Nonhuman Primates. Neurol Res Int 2021; 2021:4776610. [PMID: 34646580 PMCID: PMC8505074 DOI: 10.1155/2021/4776610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 09/22/2021] [Indexed: 11/17/2022] Open
Abstract
Minimal myelination is proposed to be a contributing factor to the preferential nigral neuronal loss in Parkinson's disease (PD). Similar to nigral dopaminergic neurons, sympathetic neurons innervating the heart have long, thin axons which are unmyelinated or minimally myelinated. Interestingly, cardiac sympathetic loss in PD is heterogeneous across the heart, yet the spatial relationship between myelination and neurodegeneration is unknown. Here, we report the mapping of myelin basic protein (MBP) expression across the left ventricle of normal rhesus macaques (n = 5) and animals intoxicated with systemic 6-OHDA (50 mg/kg iv) to model parkinsonian cardiac neurodegeneration (n = 10). A subset of 6-OHDA-treated rhesus received daily dosing of pioglitazone (5 mg/kg po; n = 5), a PPARγ agonist with neuroprotective properties. In normal animals, MBP-immunoreactivity (-ir) was identified surrounding approximately 14% of axonal fibers within nerve bundles of the left ventricle, with more myelinated nerve fibers at the base level of the left ventricle than the apex (p < 0.014). Greater MBP-ir at the base was related to a greater number of nerve bundles at that level relative to the apex (p < 0.05), as the percent of myelinated nerve fibers in bundles was not significantly different between levels of the heart. Cardiac sympathetic loss following 6-OHDA was associated with decreased MBP-ir in cardiac nerve bundles, with the percent decrease of MBP-ir greater in the apex (84.5%) than the base (52.0%). Interestingly, cardiac regions and levels with more MBP-ir in normal animals showed attenuated sympathetic loss relative to areas with less MBP-ir in 6-OHDA + placebo (r = -0.7, p < 0.014), but not in 6-OHDA + pioglitazone (r = -0.1) subjects. Our results demonstrate that myelination is present around a minority of left ventricle nerve bundle fibers, is heterogeneously distributed in the heart of rhesus macaques, and has a complex relationship with cardiac sympathetic neurodegeneration and neuroprotection.
Collapse
Affiliation(s)
- Jeanette M. Metzger
- Wisconsin National Primate Research Center, University of Wisconsin-Madison, Madison, WI 53715, USA
| | - Helen N. Matsoff
- Wisconsin National Primate Research Center, University of Wisconsin-Madison, Madison, WI 53715, USA
- Occupational Therapy Program, University of Wisconsin-Madison, Madison, WI 53715, USA
| | - Don Vu
- Wisconsin National Primate Research Center, University of Wisconsin-Madison, Madison, WI 53715, USA
| | - Alexandra D. Zinnen
- Wisconsin National Primate Research Center, University of Wisconsin-Madison, Madison, WI 53715, USA
| | - Kathryn M. Jones
- Wisconsin National Primate Research Center, University of Wisconsin-Madison, Madison, WI 53715, USA
| | - Viktoriya Bondarenko
- Wisconsin National Primate Research Center, University of Wisconsin-Madison, Madison, WI 53715, USA
| | - Heather A. Simmons
- Wisconsin National Primate Research Center, University of Wisconsin-Madison, Madison, WI 53715, USA
| | - Colleen F. Moore
- Department of Psychology, University of Wisconsin-Madison, Madison, WI 53715, USA
| | - Marina E. Emborg
- Wisconsin National Primate Research Center, University of Wisconsin-Madison, Madison, WI 53715, USA
- Department of Medical Physics, University of Wisconsin-Madison, Madison, WI 53715, USA
| |
Collapse
|
6
|
Qin X, Zhang X, Li P, Wang M, Yan L, Pan P, Zhang H, Hong X, Liu M, Bao Z. MicroRNA-185 activates PI3K/AKT signalling pathway to alleviate dopaminergic neuron damage via targeting IGF1 in Parkinson's disease. J Drug Target 2021; 29:875-883. [PMID: 33560148 DOI: 10.1080/1061186x.2021.1886300] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
OBJECTIVES Studies have extensively explored the role of microRNAs (miRs) in Parkinson's disease (PD) and miR-185 is related to autophagy and apoptosis of dopaminergic neurons in PD. However, the role of miR-185 mediating insulin-like growth factor 1 (IGF1)/phosphatidylinositol-3-kinase/protein kinase B signalling pathway (PI3K/AKT) in PD still needs in-depth exploration. METHODS Rat PD models were established by injection of 6-hydroxydopamine. PD rats were injected with miR-185 or insulin-like growth factor 1 (IGF1)-related sequences. Behaviour tests were performed, oxidative stress-related factors, tyrosine hydroxylase (TH)-, glial fibrillary acidic protein (GFAP)-, ionised calcium-binding adaptor molecule-1 (Iba-1)- and TUNEL-positive cells in the substantia nigra were determined. Levels of miR-185, IGF1 and phosphatidylinositol-3-kinase/protein kinase B (PI3K/AKT) signalling pathway-related factors were also detected. RESULTS miR-185 level was reduced in rats with PD. Restoring miR-185 promoted behaviour functions, ameliorated pathological damages and oxidative stress, increased TH-positive dopaminergic neurons, decreased GFAP- and Iba-1-positive cells and restrained neuronal apoptosis in the substantia nigra in PD rats. miR-185 targeted IGF1 to activate PI3K/AKT signalling pathway. Up-regulation of IGF1 mitigated restored miR-185-mediated effects on PD rats. CONCLUSION This study illustrates that miR-185 ameliorates dopaminergic neuron damage via targeting IGF1 and activating PI3K/AKT signalling pathway in PD, which renews the therapy for PD.
Collapse
Affiliation(s)
| | - Xia Zhang
- Zhaoqing Medical College, Zhaoqing, China
| | - Pinyu Li
- Zhaoqing Medical College, Zhaoqing, China
| | - Min Wang
- Zhaoqing Medical College, Zhaoqing, China
| | - Li Yan
- Zhaoqing Medical College, Zhaoqing, China
| | | | | | | | - Muxi Liu
- Zhaoqing Medical College, Zhaoqing, China
| | - Zeqing Bao
- Zhaoqing Medical College, Zhaoqing, China
| |
Collapse
|
7
|
Effects of Cardiac Sympathetic Neurodegeneration and PPAR γ Activation on Rhesus Macaque Whole Blood miRNA and mRNA Expression Profiles. BIOMED RESEARCH INTERNATIONAL 2020; 2020:9426204. [PMID: 32462037 PMCID: PMC7212295 DOI: 10.1155/2020/9426204] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 03/13/2020] [Accepted: 04/03/2020] [Indexed: 02/02/2023]
Abstract
Degeneration of sympathetic innervation of the heart occurs in numerous diseases, including diabetes, idiopathic REM sleep disorder, and Parkinson's disease (PD). In PD, cardiac sympathetic denervation occurs in 80-90% of patients and can begin before the onset of motor symptoms. Today, there are no disease-modifying therapies for cardiac sympathetic neurodegeneration, and biomarkers are limited to radioimaging techniques. Analysis of expression levels of coding mRNA and noncoding RNAs, such as microRNAs (miRNAs), can uncover pathways involved in disease, leading to the discovery of biomarkers, pathological mechanisms, and potential drug targets. Whole blood in particular is a clinically relevant source of biomarkers, as blood sampling is inexpensive and simple to perform. Our research group has previously developed a nonhuman primate model of cardiac sympathetic denervation by intravenous administration of the catecholaminergic neurotoxin 6-hydroxydopamine (6-OHDA). In this rhesus macaque (Macaca mulatta) model, imaging with positron emission tomography showed that oral administration of the peroxisome proliferator-activated receptor gamma (PPARγ) agonist pioglitazone (n = 5; 5 mg/kg daily) significantly decreased cardiac inflammation and oxidative stress compared to placebo (n = 5). Here, we report our analysis of miRNA and mRNA expression levels over time in the whole blood of these monkeys. Differential expression of three miRNAs was induced by 6-OHDA (mml-miR-16-2-3p, mml-miR-133d-3p, and mml-miR-1262-5p) and two miRNAs by pioglitazone (mml-miR-204-5p and mml-miR-146b-5p) at 12 weeks posttoxin, while expression of mRNAs involved in inflammatory cytokines and receptors was not significantly affected. Overall, this study contributes to the characterization of rhesus coding and noncoding RNA profiles in normal and disease-like conditions, which may facilitate the identification and clinical translation of biomarkers of cardiac neurodegeneration and neuroprotection.
Collapse
|