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Firdous SM, Khan SA, Maity A. Oxidative stress-mediated neuroinflammation in Alzheimer's disease. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2024:10.1007/s00210-024-03188-3. [PMID: 38832985 DOI: 10.1007/s00210-024-03188-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Accepted: 05/24/2024] [Indexed: 06/06/2024]
Abstract
Reactive oxygen species (ROS) are metabolic by-products that constitute an indispensable component of physiological processes, albeit their heightened presence may proffer substantial perils to biological entities. Such a proliferation gives rise to a gradual escalation of oxidative stress within the organism, thereby compromising mitochondrial functionality and inflicting harm upon various bodily systems, with a particular predilection for the central nervous system. In its nascent stages, it is plausible that inflammation has been a facilitator in the progression of the malady. The precise role of inflammation in Alzheimer's disease (AD) remains somewhat enigmatic, although it is conceivable that activated microglia and astrocytes might be implicated in the removal of amyloid-β (Aβ) deposits. Nonetheless, prolonged microglial activation is associated with Tau phosphorylation and Aβ aggregation. Research studies have indicated that AD brains upregulate complementary molecules, inflammatory cytokines, acute phase reacting agents, and other inflammatory mediators that may cause neurodegeneration. In this review, oxidative damage products will be discussed as potential peripheral biomarkers for AD and its early stages. The disordered excretion of pro-inflammatory cytokines, chemokines, oxygen, and nitrogen-reactive species, along with the stimulation of the complement system by glial cells, has the potential to disrupt the functionality of neuronal termini. This perturbation, in turn, culminates in compromised synaptic function, a phenomenon empirically linked to the manifestation of cognitive impairments. The management of neurodegenerative conditions in the context of dementia necessitates therapeutic interventions that specifically target the excessive production of inflammatory and oxidative agents. Furthermore, we shall deliberate upon the function of microglia and oxidative injury in the etiology of AD and the ensuing neurodegenerative processes.
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Affiliation(s)
- Sayed Mohammed Firdous
- Department of Pharmacology, Calcutta Institute of Pharmaceutical Technology & AHS, Uluberia, Howrah, 711316, West Bengal, India.
| | - Sahabaj Ali Khan
- Department of Pharmacology, Calcutta Institute of Pharmaceutical Technology & AHS, Uluberia, Howrah, 711316, West Bengal, India
| | - Amritangshu Maity
- Department of Pharmacology, Calcutta Institute of Pharmaceutical Technology & AHS, Uluberia, Howrah, 711316, West Bengal, India
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2
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Nigam M, Devi K, Coutinho HDM, Mishra AP. Exploration of gut microbiome and inflammation: A review on key signalling pathways. Cell Signal 2024; 118:111140. [PMID: 38492625 DOI: 10.1016/j.cellsig.2024.111140] [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: 02/27/2024] [Revised: 03/09/2024] [Accepted: 03/11/2024] [Indexed: 03/18/2024]
Abstract
The gut microbiome, a crucial component of the human system, is a diverse collection of microbes that belong to the gut of human beings as well as other animals. These microbial communities continue to coexist harmoniously with their host organisms and perform various functions that affect the host's general health. Each person's gut microbiota has a unique makeup. The gut microbiota is well acknowledged to have a part in the local as well as systemic inflammation that underlies a number of inflammatory disorders (e.g., atherosclerosis, diabetes mellitus, obesity, and inflammatory bowel disease).The gut microbiota's metabolic products, such as short-chain fatty acids (butyrate, propionate, and acetate) inhibit inflammation by preventing immune system cells like macrophages and neutrophils from producing pro-inflammatory factors, which are triggered by the structural elements of bacteria (like lipopolysaccharide). The review's primary goal is to provide comprehensive and compiled data regarding the contribution of gut microbiota to inflammation and the associated signalling pathways.
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Affiliation(s)
- Manisha Nigam
- Department of Biochemistry, Hemvati Nandan Bahuguna Garhwal University, Srinagar Garhwal 246174, Uttarakhand, India.
| | - Kanchan Devi
- Department of Biochemistry, Hemvati Nandan Bahuguna Garhwal University, Srinagar Garhwal 246174, Uttarakhand, India
| | | | - Abhay Prakash Mishra
- Department of Pharmacology, University of Free State, Bloemfontein 9300, South Africa.
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Asejeje FO, Abiola MA, Adeyemo OA, Ogunro OB, Ajayi AM. Exogenous monosodium glutamate exacerbates lipopolysaccharide-induced neurobehavioral deficits, oxidative damage, neuroinflammation, and cholinergic dysfunction in rat brain. Neurosci Lett 2024; 825:137710. [PMID: 38432355 DOI: 10.1016/j.neulet.2024.137710] [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: 01/11/2024] [Revised: 02/17/2024] [Accepted: 02/28/2024] [Indexed: 03/05/2024]
Abstract
Extensive experimental evidence points to neuroinflammation and oxidative stress as major pathogenic events that initiate and drive the neurodegenerative process. Monosodium glutamate (MSG) is a widely used food additive in processed foods known for its umami taste-enhancing properties. However, concerns about its potential adverse effects on the brain have been raised. Thus, the present study investigated the impact of MSG on lipopolysaccharide (LPS)-induced neurotoxicity in rat brains. Wistar rats weighing between 180 g and 200 g were randomly allocated into four groups: control (received distilled water), MSG (received 1.5 g/kg/day), LPS (received 250 µg/kg/day), and LPS + MSG (received LPS, 250 µg/kg, and MSG, 1.5 g/kg). LPS was administered intraperitoneally for 7 days while MSG was administered orally for 14 days. Our results showed that MSG exacerbated LPS-induced impairment in locomotor and exploratory activities in rats. Similarly, MSG exacerbated LPS-induced oxidative stress as evidenced by increased levels of malondialdehyde (MDA) with a concomitant decrease in levels of superoxide dismutase (SOD), catalase (CAT), glutathione (GSH), and glutathione-s-transferase (GST) in the brain tissue. In addition, MSG potentiated LPS-induced neuroinflammation, as indicated by increased levels of pro-inflammatory cytokines such as interleukin-6 (IL-6), and tumor necrosis factor-α (TNF-α) as well as myeloperoxidase (MPO) and nitric oxide (NO) in the brain. Moreover, MSG aggravated LPS-induced cholinergic dysfunction, as demonstrated by increased activity of acetylcholinesterase (AChE) in the brain. Further, we found a large number of degenerative neurons widespread in hippocampal CA1, CA3 regions, cerebellum, and cortex according to H&E staining. Taken together, our findings suggest that MSG aggravates LPS-induced neurobehavioral deficits, oxidative stress, neuroinflammation, cholinergic dysfunction, and neurodegeneration in rat brains.
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Affiliation(s)
- Folake Olubukola Asejeje
- Department of Chemical Sciences, Faculty of Natural Sciences, Ajayi Crowther University, Oyo, Nigeria.
| | - Michael Abayomi Abiola
- Department of Chemical Sciences, Faculty of Natural Sciences, Ajayi Crowther University, Oyo, Nigeria; Department of Cell Biology, Neurobiology, and Anatomy, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Oluwatobi Adewumi Adeyemo
- Department of Chemical Sciences, Faculty of Natural Sciences, Ajayi Crowther University, Oyo, Nigeria
| | | | - Abayomi Mayowa Ajayi
- Department of Pharmacology and Therapeutics, Faculty of Basic Medical Sciences, University of Ibadan, Ibadan, Nigeria
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Lu W, Wen J. Neuroinflammation and Post-Stroke Depression: Focus on the Microglia and Astrocytes. Aging Dis 2024:AD.2024.0214-1. [PMID: 38421829 DOI: 10.14336/ad.2024.0214-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Accepted: 02/14/2024] [Indexed: 03/02/2024] Open
Abstract
Post-stroke depression (PSD), a frequent and disabling complication of stroke, has a strong impact on almost thirty percent of stroke survivors. The pathogenesis of PSD is not completely clear so far. Neuroinflammation following stroke is one of underlying mechanisms that involves in the pathophysiology of PSD and plays an important function in the development of depression and is regarded as a sign of depression. During the neuroinflammation after ischemic stroke onset, both astrocytes and microglia undergo a series of morphological and functional changes and play pro-inflammatory or anti-inflammatory effect in the pathological process of stroke. Importantly, astrocytes and microglia exert dual roles in the pathological process of PSD due to the phenotypic transformation. We summarize the latest evidence of neuroinflammation involving in PSD in this review, focus on the phenotypic transformation of microglia and astrocytes following ischemic stroke and reveal the dual roles of both microglia and astrocytes in the PSD via modulating the neuroinflammation.
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Affiliation(s)
- Weizhuo Lu
- Department of Pharmacology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
- Medical Branch, Hefei Technology College, Hefei, China
| | - Jiyue Wen
- Department of Pharmacology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
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Laranjeira IM, Apolinário E, Amorim D, da Silva Filho AA, Dias ACP, Pinto-Ribeiro F. Baccharis dracunculifolia DC Consumption Improves Nociceptive and Depressive-like Behavior in Rats with Experimental Osteoarthritis. Foods 2024; 13:535. [PMID: 38397516 PMCID: PMC10887954 DOI: 10.3390/foods13040535] [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: 12/30/2023] [Revised: 01/27/2024] [Accepted: 01/30/2024] [Indexed: 02/25/2024] Open
Abstract
Osteoarthritis (OA) persistently activates nociceptors, leading to chronic pain, which is often accompanied by the comorbid development of emotional impairments (anxiety and depression), an effect associated with microgliosis. Baccharis dracunculifolia DC (Asteraceae), a Brazilian edible plant, is an important source of active compounds with anti-inflammatory abilities. Thus, we evaluated its ability to reverse OA-induced nociceptive and emotional-like impairments in osteoarthritic ovariectomized female rats using the kaolin/carrageenan (K/C) model. Four weeks after OA induction, mechanical hyperalgesia was confirmed, and the treatment started. Control animals (SHAMs) were treated with phosphate-buffered saline (PBS), while arthritic animals (ARTHs) either received PBS or B. dracunculifolia 50 mg/kg (Bd50) and 100 mg/kg (Bd100), via gavage, daily for five weeks. At the end of the treatment, anxiety-like behavior was assessed using the Open Field Test (OFT), anhedonia was assessed using the Sucrose Preference Test (SPT), and learned helplessness was assessed using the Forced Swimming Test (FST). After occision, microglia were stained with IBA-1 and quantified in brain sections of target areas (prefrontal cortex, amygdala, and periaqueductal grey matter). Treatment with B. dracunculifolia extract reversed OA-induced mechanical hyperalgesia and partly improved depressive-like behavior in OA animals' concomitant to a decrease in the number of M1 microglia. Our findings suggest that B. dracunculifolia extracts can potentially be used in the food industry and for the development of nutraceuticals and functional foods.
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Affiliation(s)
- Inês Martins Laranjeira
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal; (I.M.L.); (E.A.); (D.A.)
- ICVS/3B’s—PT Government Associate Laboratory, 4806-909 Guimarães, Portugal
- CITAB—Centre for the Research and Technology of Agro-Environmental and Biological Sciences, University of Trás-os-Montes e Alto Douro, 5000-801 Vila Real, Portugal
- Centre of Molecular and Environmental Biology (CBMA), University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal;
| | - Elisabete Apolinário
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal; (I.M.L.); (E.A.); (D.A.)
- ICVS/3B’s—PT Government Associate Laboratory, 4806-909 Guimarães, Portugal
- Centre of Molecular and Environmental Biology (CBMA), University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal;
| | - Diana Amorim
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal; (I.M.L.); (E.A.); (D.A.)
- ICVS/3B’s—PT Government Associate Laboratory, 4806-909 Guimarães, Portugal
| | - Ademar Alves da Silva Filho
- Identificação e Pesquisa em Princípios Ativos Naturais—NIPPAN, Faculdade de Farmácia, Universidade Federal de Juiz de Fora, Rua José Lourenço Kelmer, s/n—Campus Universitário, Bairro São Pedro, Juiz de Fora 36036-900, Brazil;
| | - Alberto Carlos Pires Dias
- Centre of Molecular and Environmental Biology (CBMA), University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal;
| | - Filipa Pinto-Ribeiro
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal; (I.M.L.); (E.A.); (D.A.)
- ICVS/3B’s—PT Government Associate Laboratory, 4806-909 Guimarães, Portugal
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Ma J, Yin H, Ran Z, Luo T, Jin Z, Zheng L, Zhang F. Knockdown of BCL-3 Attenuates Inflammatory Response in Intracerebral Hemorrhage Through an rBMECs/MGs Microenvironment. Neuroscience 2024; 537:105-115. [PMID: 38006962 DOI: 10.1016/j.neuroscience.2023.11.025] [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: 05/05/2023] [Revised: 11/16/2023] [Accepted: 11/20/2023] [Indexed: 11/27/2023]
Abstract
Intracerebral hemorrhage (ICH) is a severe disease with high mortality. Recently, the role of BCL-3 in ICH has started to gain attention, but its mechanism remains unclear. A collagenase injection method was used to establish an ICH model in rats, and the expression of BCL-3 were detected. Rat brain microvascular endothelial cells (rBMECs) were isolated and induced with Hemin to establish an in vitro ICH model. The expression of BCL-3 was assessed, followed by detection of cell apoptosis. In the cell model, the recruitment, polarization, and pro-inflammatory features of the microglia (MGs) were assessed after co-cultured with rBMECs. Finally, in the ICH animal model, after knockdown of BCL-3, comprehensive evaluations of inflammatory responses in brain tissue, polarization and recruitment of microglia, and apoptosis were conducted. Results revealed an upregulated expression of BCL-3 in brain tissue of the ICH animal model. In Hemin-treated rBMECs, an upward trend in BCL-3 expression was observed, accompanied by an increase of cell apoptosis. After co-culturing with the in vitro model, microglia exhibited enhanced M1 polarization and intensified inflammatory responses. However, when BCL-3 expression was inhibited in the in vitro model, a reversal occurred in the polarization tendency and inflammatory responses of microglia. Additionally, after knockdown of BCL-3 in the animal model, notable improvements occurred in M1 polarization, infiltration of macrophages, and inflammatory reactions in the brain tissue. Therefore, BCL-3 modulates the inflammatory response after ICH occurrence through the BMECs/MGs microenvironment. Additionally, BCL-3 might be a potential therapeutic target for ICH management.
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Affiliation(s)
- Jun Ma
- Department of Neurosurgery, Guizhou Provincial People's Hospital, PR China
| | - Hao Yin
- Department of Neurosurgery, Guizhou Provincial People's Hospital, PR China.
| | - Zhongying Ran
- Department of Neurosurgery, Guizhou Provincial People's Hospital, PR China
| | - Tao Luo
- Department of Neurosurgery, Guizhou Provincial People's Hospital, PR China
| | - Zexin Jin
- Department of Neurosurgery, Guizhou Provincial People's Hospital, PR China
| | - Li Zheng
- Department of Neurosurgery, Guizhou Provincial People's Hospital, PR China
| | - Fuyang Zhang
- Department of Neurosurgery, Guizhou Provincial People's Hospital, PR China
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So YJ, Lee JU, Yang GS, Yang G, Kim SW, Lee JH, Kim JU. The Potentiality of Natural Products and Herbal Medicine as Novel Medications for Parkinson's Disease: A Promising Therapeutic Approach. Int J Mol Sci 2024; 25:1071. [PMID: 38256144 PMCID: PMC10816678 DOI: 10.3390/ijms25021071] [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: 11/22/2023] [Revised: 01/09/2024] [Accepted: 01/12/2024] [Indexed: 01/24/2024] Open
Abstract
As the global population ages, the prevalence of Parkinson's disease (PD) is steadily on the rise. PD demonstrates chronic and progressive characteristics, and many cases can transition into dementia. This increases societal and economic burdens, emphasizing the need to find effective treatments. Among the widely recognized causes of PD is the abnormal accumulation of proteins, and autophagy dysfunction accelerates this accumulation. The resultant Lewy bodies are also commonly found in Alzheimer's disease patients, suggesting an increased potential for the onset of dementia. Additionally, the production of free radicals due to mitochondrial dysfunction contributes to neuronal damage and degeneration. The activation of astrocytes and the M1 phenotype of microglia promote damage to dopamine neurons. The drugs currently used for PD only delay the clinical progression and exacerbation of the disease without targeting its root cause, and come with various side effects. Thus, there is a demand for treatments with fewer side effects, with much potential offered by natural products. In this study, we reviewed a total of 14 articles related to herbal medicines and natural products and investigated their relevance to possible PD treatment. The results showed that the reviewed herbal medicines and natural products are effective against lysosomal disorder, mitochondrial dysfunction, and inflammation, key mechanisms underlying PD. Therefore, natural products and herbal medicines can reduce neurotoxicity and might improve both motor and non-motor symptoms associated with PD. Furthermore, these products, with their multi-target effects, enhance bioavailability, inhibit antibiotic resistance, and might additionally eliminate side effects, making them good alternative therapies for PD treatment.
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Affiliation(s)
- Yu-Jin So
- College of Korean Medicine, Woosuk University, Jeonju-si 54986, Jeollabuk-do, Republic of Korea; (Y.-J.S.); (J.-U.L.); (G.-S.Y.); (G.Y.); (S.-W.K.)
| | - Jae-Ung Lee
- College of Korean Medicine, Woosuk University, Jeonju-si 54986, Jeollabuk-do, Republic of Korea; (Y.-J.S.); (J.-U.L.); (G.-S.Y.); (G.Y.); (S.-W.K.)
| | - Ga-Seung Yang
- College of Korean Medicine, Woosuk University, Jeonju-si 54986, Jeollabuk-do, Republic of Korea; (Y.-J.S.); (J.-U.L.); (G.-S.Y.); (G.Y.); (S.-W.K.)
| | - Gabsik Yang
- College of Korean Medicine, Woosuk University, Jeonju-si 54986, Jeollabuk-do, Republic of Korea; (Y.-J.S.); (J.-U.L.); (G.-S.Y.); (G.Y.); (S.-W.K.)
| | - Sung-Wook Kim
- College of Korean Medicine, Woosuk University, Jeonju-si 54986, Jeollabuk-do, Republic of Korea; (Y.-J.S.); (J.-U.L.); (G.-S.Y.); (G.Y.); (S.-W.K.)
| | - Jun-Ho Lee
- College of Korean Medicine, Woosuk University, Jeonju-si 54986, Jeollabuk-do, Republic of Korea; (Y.-J.S.); (J.-U.L.); (G.-S.Y.); (G.Y.); (S.-W.K.)
- Da CaPo Co., Ltd., 303 Cheonjam-ro, Wansan-gu, Jeonju-si 55069, Jeollabuk-do, Republic of Korea
| | - Jong-Uk Kim
- College of Korean Medicine, Woosuk University, Jeonju-si 54986, Jeollabuk-do, Republic of Korea; (Y.-J.S.); (J.-U.L.); (G.-S.Y.); (G.Y.); (S.-W.K.)
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Liang Y, Chen L, Huang Y, Xie L, Liu X, Zhou W, Cao W, Chen Z, Zhong X. Betaine eliminates CFA-induced depressive-like behaviour in mice may be through inhibition of microglia and astrocyte activation and polarization. Brain Res Bull 2024; 206:110863. [PMID: 38145759 DOI: 10.1016/j.brainresbull.2023.110863] [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: 08/07/2023] [Revised: 12/03/2023] [Accepted: 12/22/2023] [Indexed: 12/27/2023]
Abstract
Chronic pain can induce not only nociceptive but also depressive emotions. A previous study demonstrated that betaine, a commonly used nutrient supplement, has an anti-nociceptive effect, but whether betaine can alleviate chronic pain-induced depressive emotion is elusive. Our current study found that betaine administration significantly eliminated complete Freund's adjuvant (CFA)-induced pain-related depressive-like behaviour. Mechanistically, betaine treatment inhibited microglia and astrocyte activation. Furthermore, betaine significantly promoted the transition of microglia from the M1 to the M2 phenotype, as well as the transition of astrocytes from the A1 to the A2 phenotype. Additionally, the release of pro-inflammatory factors such as IL-18, IL-1β and IL-6 and anti-inflammatory factors such as IL-10 in the hippocampus induced by CFA were also reversed by betaine administration. Overall, betaine has therapeutic effects on pain-related depressive-like phenotypes caused by CFA, possibly through altering the polarization of microglia and astrocytes to reduce neuroinflammation.
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Affiliation(s)
- Yue Liang
- The First Affiliated Hospital, Department of Endocrinology and Metabolism, Hengyang Medical School, University of South China, 421001 Hengyang, Hunan, China; The First Affiliated Hospital, Department of Laboratory Medicine, Hengyang Medical School, University of South China, 421001 Hengyang, Hunan, China
| | - Ling Chen
- The First Affiliated Hospital, Department of Endocrinology and Metabolism, Hengyang Medical School, University of South China, 421001 Hengyang, Hunan, China
| | - Yanmei Huang
- The First Affiliated Hospital, Department of Laboratory Medicine, Hengyang Medical School, University of South China, 421001 Hengyang, Hunan, China
| | - Lihua Xie
- The First Affiliated Hospital, Department of Laboratory Medicine, Hengyang Medical School, University of South China, 421001 Hengyang, Hunan, China
| | - Xueqin Liu
- The First Affiliated Hospital, Department of Endocrinology and Metabolism, Hengyang Medical School, University of South China, 421001 Hengyang, Hunan, China
| | - Wenyan Zhou
- The First Affiliated Hospital, Department of Endocrinology and Metabolism, Hengyang Medical School, University of South China, 421001 Hengyang, Hunan, China
| | - Wenyu Cao
- Department of Human Anatomy, Hengyang Medical School, University of South China, 421001 Hengyang, Hunan, China
| | - Zuyao Chen
- The First Affiliated Hospital, Department of Otorhinolaryngology, Hengyang Medical School, University of South China, 421001 Hengyang, Hunan, China.
| | - Xiaolin Zhong
- The First Affiliated Hospital, Department of Endocrinology and Metabolism, Hengyang Medical School, University of South China, 421001 Hengyang, Hunan, China.
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da Silva MDV, Piva M, Martelossi-Cebinelli G, Stinglin Rosa Ribas M, Hoffmann Salles Bianchini B, K Heintz O, Casagrande R, Verri WA. Stem cells and pain. World J Stem Cells 2023; 15:1035-1062. [PMID: 38179216 PMCID: PMC10762525 DOI: 10.4252/wjsc.v15.i12.1035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 11/06/2023] [Accepted: 11/30/2023] [Indexed: 12/26/2023] Open
Abstract
Pain can be defined as an unpleasant sensory and emotional experience caused by either actual or potential tissue damage or even resemble that unpleasant experience. For years, science has sought to find treatment alternatives, with minimal side effects, to relieve pain. However, the currently available pharmacological options on the market show significant adverse events. Therefore, the search for a safer and highly efficient analgesic treatment has become a priority. Stem cells (SCs) are non-specialized cells with a high capacity for replication, self-renewal, and a wide range of differentiation possibilities. In this review, we provide evidence that the immune and neuromodulatory properties of SCs can be a valuable tool in the search for ideal treatment strategies for different types of pain. With the advantage of multiple administration routes and dosages, therapies based on SCs for pain relief have demonstrated meaningful results with few downsides. Nonetheless, there are still more questions than answers when it comes to the mechanisms and pathways of pain targeted by SCs. Thus, this is an evolving field that merits further investigation towards the development of SC-based analgesic therapies, and this review will approach all of these aspects.
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Affiliation(s)
- Matheus Deroco Veloso da Silva
- Department of Pathology, Laboratory of Pain, Inflammation, Neuropathy and Cancer, State University of Londrina, Londrina 86057-970, Paraná, Brazil
| | - Maiara Piva
- Department of Pathology, Laboratory of Pain, Inflammation, Neuropathy and Cancer, State University of Londrina, Londrina 86057-970, Paraná, Brazil
| | - Geovana Martelossi-Cebinelli
- Department of Pathology, Laboratory of Pain, Inflammation, Neuropathy and Cancer, State University of Londrina, Londrina 86057-970, Paraná, Brazil
| | - Mariana Stinglin Rosa Ribas
- Department of Pathology, Laboratory of Pain, Inflammation, Neuropathy and Cancer, State University of Londrina, Londrina 86057-970, Paraná, Brazil
| | - Beatriz Hoffmann Salles Bianchini
- Department of Pathology, Laboratory of Pain, Inflammation, Neuropathy and Cancer, State University of Londrina, Londrina 86057-970, Paraná, Brazil
| | - Olivia K Heintz
- Morningside Graduate School of Biomedical Sciences, University of Massachusetts Chan Medical School, Worcester, MA 01655, United States
| | - Rubia Casagrande
- Department of Pharmaceutical Sciences, Center of Health Science, State University of Londrina, Londrina 86038-440, Paraná, Brazil
| | - Waldiceu A Verri
- Department of Pathology, Laboratory of Pain, Inflammation, Neuropathy and Cancer, Center of Biological Sciences, State University of Londrina, Londrina 86057-970, Paraná, Brazil.
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10
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Chen Z, Wang J, Carru C, Sedda S, Nivoli AM, Li Z. Meta-analysis of peripheral mean platelet volume in patients with mental disorders: Comparisons in depression, anxiety, bipolar disorder, and schizophrenia. Brain Behav 2023; 13:e3240. [PMID: 37644555 PMCID: PMC10636414 DOI: 10.1002/brb3.3240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 08/09/2023] [Accepted: 08/22/2023] [Indexed: 08/31/2023] Open
Abstract
BACKGROUND There is a growing interest in the role of immune and inflammatory responses in mental disorders (MDs). Mean platelet volume (MPV) is an extensively utilized hemogram parameter that reflects systemic inflammation and immune function. Our research sought to determine whether a connection exists between MPV and various types of MDs. METHODS We searched PubMed, EMBASE, PsychINFO, and Web of Science for eligible studies from inception to 15 February 2023, supplemented by manual searching the references from relevant articles. We applied standardized mean difference (SMD) and its 95% confidence interval (CI) to estimate the differences in MPV values in patients with MDs compared to controls. RESULTS We analyzed data from 24 surveys with 4843 participants (2450 patients with MDs and 2393 healthy controls). Two-step meta-analyses were conducted to estimate the SMD in MPV value between individuals with and without MDs. Higher MPV values were substantially linked to MDs (i.e., depression, anxiety, bipolar disorder, and schizophrenia). Moderator and stratified analyses revealed that the aggregate effects were more robust in specific populations, such as younger patients and those who had not taken antipsychotic medication within the previous month. CONCLUSIONS Our findings corroborate the role of inflammatory response in the pathogenesis of MDs and the pharmacological treatment of these conditions. Regarding the considerable heterogeneity among studies, the level of evidence was very low to moderate.
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Affiliation(s)
- Zhichao Chen
- Department of Biomedical SciencesUniversity of SassariSassariItaly
- Department of CardiologySecond Affiliated Hospital of Shantou University Medical CollegeShantouChina
| | - Jing Wang
- Department of Biomedical SciencesUniversity of SassariSassariItaly
- Department of Obstetrics and GynecologySecond Affiliated Hospital of Shantou University Medical CollegeShantouChina
| | - Ciriaco Carru
- Department of Biomedical SciencesUniversity of SassariSassariItaly
| | - Stefania Sedda
- Department of Biomedical SciencesUniversity of SassariSassariItaly
| | - Alessandra Matilde Nivoli
- Department of Medical, Surgical and Experimental SciencesUniversity of SassariSassariSardegnaItaly
- Psychiatric Unit Clinic of the University HospitalSassariSardegnaItaly
| | - Zhi Li
- Department of CardiologyThe First Affiliated Hospital of Shantou University Medical CollegeShantouChina
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Chen Y, Yang Y, He X, Liu X, Yu P, Liu R, Wei L, Zhang B, Zou T, Liu H, Li Y, Chen R, Cheng Y. Copper indium selenium nanomaterials for photo-amplified immunotherapy through simultaneously enhancing cytotoxic T lymphocyte recruitment and M1 polarization of macrophages. Acta Biomater 2023; 171:495-505. [PMID: 37739250 DOI: 10.1016/j.actbio.2023.09.033] [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: 06/13/2023] [Revised: 09/04/2023] [Accepted: 09/17/2023] [Indexed: 09/24/2023]
Abstract
Photoactivated immunotherapy has promising therapeutic efficacy for treating malignancies, especially metastatic tumors. In this study, an erythrocyte membrane-encapsulated copper indium selenium (RCIS) semiconductor nanomaterial was developed to eliminate primary and metastatic tumors, in which copper ions can induce chemodynamic performance, and the narrow band gap endows RCIS with the properties of near-infrared (NIR) light-activated photothermal and photodynamic amplified immunotherapy. Furthermore, RCIS can be used as a nanocarrier to form RNCIS nanoparticles (NPs) by loading NLG919, which blocks the indoleamine 2,3-dioxygenase-1. Under NIR light irradiation, RNCIS NPs release NLG919 at tumor sites via photothermal properties, thereby promoting the recruitment of cytotoxic T lymphocytes and M1 polarization of macrophages, targeting the activation and amplification of immune responses. Herein, in vitro and in vivo studies showed that RNCIS NPs effectively kill cancer cells and eliminate primary and metastatic tumors. Therefore, this study suggests that semiconductor nanomaterials with narrow bandgaps have great potential as photoimmunotherapy agents and NIR light-responsive nanocarriers for controlled release, providing a great paradigm for synergetic tumor photoimmunotherapy. STATEMENT OF SIGNIFICANCE: The Erythrocyte membrane-coated, NLG919-loaded copper indium selenium (RNCIS) semiconductor was designed for eliminating primary and metastatic tumors. RNCIS exhibits chemodynamic, photodynamic, and photothermal activated immunotherapy by inhibiting indoleamine 2,3-dioxygenase-1. This can enhance the recruitment of cytotoxic T lymphocyte and M1 polarization of macrophage, leading to higher synergetic photo-immune therapeutic efficacy.
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Affiliation(s)
- Yining Chen
- College of Life Science, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development Jilin Agricultural University, Changchun 130118, PR China
| | - Yunan Yang
- College of Life Science, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development Jilin Agricultural University, Changchun 130118, PR China
| | - Xinai He
- College of Life Science, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development Jilin Agricultural University, Changchun 130118, PR China
| | - Xin Liu
- College of Life Science, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development Jilin Agricultural University, Changchun 130118, PR China
| | - Pengcheng Yu
- College of Science, Jilin Provincial Key Laboratory of Human Health Status Identification and Function Enhancement, Changchun University, Changchun 130022, PR China
| | - Runru Liu
- College of Science, Jilin Provincial Key Laboratory of Human Health Status Identification and Function Enhancement, Changchun University, Changchun 130022, PR China
| | - Liqi Wei
- College of Life Science, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development Jilin Agricultural University, Changchun 130118, PR China
| | - Biao Zhang
- College of Life Science, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development Jilin Agricultural University, Changchun 130118, PR China
| | - Tianshu Zou
- College of Life Science, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development Jilin Agricultural University, Changchun 130118, PR China
| | - Hongxiang Liu
- College of Life Science, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development Jilin Agricultural University, Changchun 130118, PR China
| | - Yuanqiang Li
- College of Life Science, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development Jilin Agricultural University, Changchun 130118, PR China
| | - Rui Chen
- College of Science, Jilin Provincial Key Laboratory of Human Health Status Identification and Function Enhancement, Changchun University, Changchun 130022, PR China.
| | - Yan Cheng
- College of Life Science, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development Jilin Agricultural University, Changchun 130118, PR China.
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12
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Jermakow N, Skarżyńska W, Lewandowska K, Kiernozek E, Goździk K, Mietelska-Porowska A, Drela N, Wojda U, Doligalska M. Modulation of LPS-Induced Neurodegeneration by Intestinal Helminth Infection in Ageing Mice. Int J Mol Sci 2023; 24:13994. [PMID: 37762297 PMCID: PMC10530578 DOI: 10.3390/ijms241813994] [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: 07/27/2023] [Revised: 09/05/2023] [Accepted: 09/07/2023] [Indexed: 09/29/2023] Open
Abstract
Parasitic helminths induce a transient, short-term inflammation at the beginning of infection, but in persistent infection may suppress the systemic immune response by enhancing the activity of regulatory M2 macrophages. The aim of the study was to determine how nematode infection affects age-related neuroinflammation, especially macrophages in the nervous tissue. Here, intraperitoneal LPS-induced systemic inflammation resulting in brain neurodegeneration was enhanced by prolonged Heligmosomoides polygyrus infection in C57BL/6 mice. The changes in the brain coincided with the increase in M1 macrophages, reduced survivin level, enhanced APP and GFAP expression, chitin-like chains deposition in the brain and deterioration behaviour manifestations. These changes were also observed in transgenic C57BL/6 mice predisposed to develop neurodegeneration typical for Alzheimer's disease in response to pathogenic stimuli. Interestingly, in mice infected with the nematode only, the greater M2 macrophage population resulted in better results in the forced swim test. Given the growing burden of neurodegenerative diseases, understanding such interactive associations can have significant implications for ageing health strategies and disease monitoring.
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Affiliation(s)
- Natalia Jermakow
- Faculty of Biology, University of Warsaw, Miecznikowa 1, 02-096 Warszawa, Poland; (N.J.); (W.S.); (E.K.); (K.G.); (N.D.)
| | - Weronika Skarżyńska
- Faculty of Biology, University of Warsaw, Miecznikowa 1, 02-096 Warszawa, Poland; (N.J.); (W.S.); (E.K.); (K.G.); (N.D.)
| | - Katarzyna Lewandowska
- Faculty of Chemistry, Nicolaus Copernicus in Toruń, Gagarina 7, 87-100 Toruń, Poland;
| | - Ewelina Kiernozek
- Faculty of Biology, University of Warsaw, Miecznikowa 1, 02-096 Warszawa, Poland; (N.J.); (W.S.); (E.K.); (K.G.); (N.D.)
| | - Katarzyna Goździk
- Faculty of Biology, University of Warsaw, Miecznikowa 1, 02-096 Warszawa, Poland; (N.J.); (W.S.); (E.K.); (K.G.); (N.D.)
| | - Anna Mietelska-Porowska
- Laboratory of Preclinical Testing of Higher Standard, Nencki Institute of Experimental Biology, Ludwika Pasteura 3, 02-093 Warszawa, Poland; (A.M.-P.); (U.W.)
| | - Nadzieja Drela
- Faculty of Biology, University of Warsaw, Miecznikowa 1, 02-096 Warszawa, Poland; (N.J.); (W.S.); (E.K.); (K.G.); (N.D.)
| | - Urszula Wojda
- Laboratory of Preclinical Testing of Higher Standard, Nencki Institute of Experimental Biology, Ludwika Pasteura 3, 02-093 Warszawa, Poland; (A.M.-P.); (U.W.)
| | - Maria Doligalska
- Faculty of Biology, University of Warsaw, Miecznikowa 1, 02-096 Warszawa, Poland; (N.J.); (W.S.); (E.K.); (K.G.); (N.D.)
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13
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Juckel G, Freund N. Microglia and microbiome in schizophrenia: can immunomodulation improve symptoms? J Neural Transm (Vienna) 2023; 130:1187-1193. [PMID: 36810627 PMCID: PMC10460707 DOI: 10.1007/s00702-023-02605-w] [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: 01/10/2023] [Accepted: 02/13/2023] [Indexed: 02/24/2023]
Abstract
In this overview, influences of microglia activation and disturbances of the microbiome in the devastating disorder schizophrenia are discussed. Despite previous assumptions of a primary neurodegenerative character of this disorder, current research underlines the important autoimmunological and inflammatory processes here. Early disturbances of microglial cells as well as cytokines could lead to weakness of the immunological system in the prodromal phase and then fully manifest in patients with schizophrenia. Measurements of microbiome features might allow identifying the prodromal phase. In conclusion, such thinking would imply several new therapeutic options regulating immune processes by old or new anti-inflammatory agents in patients.
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Affiliation(s)
- Georg Juckel
- Department of Psychiatry, Ruhr-University Bochum, LWL-University Hospital, Alexandrinenstr.1, 44791, Bochum, Germany.
| | - Nadja Freund
- Department of Psychiatry, Ruhr-University Bochum, LWL-University Hospital, Alexandrinenstr.1, 44791, Bochum, Germany
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14
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Kuboyama T, Hotta K, Asanuma M, Ge YW, Toume K, Yamazaki T, Komatsu K. Quality assessment of Rheum species cultivated in Japan by focusing on M2 polarization of microglia. J Nat Med 2023; 77:699-711. [PMID: 37347410 DOI: 10.1007/s11418-023-01710-0] [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: 09/30/2022] [Accepted: 05/22/2023] [Indexed: 06/23/2023]
Abstract
In traditional Japanese medicine, Rhei Rhizoma is used as a purgative, blood stasis-resolving and antipsychotic drug. The latter two properties are possibly related to anti-inflammatory effects. Microglia regulate inflammation in the central nervous system. M1 microglia induce inflammation, while M2 microglia inhibit inflammation and show neurotrophic effects. This study investigated the effects from water extracts of roots of cultivated Rheum species in Nagano Prefecture, Japan (strain C, a related strain to a Japanese cultivar, 'Shinshu-Daio'; and strain 29, a Chinese strain) and 3 kinds of Rhei Rhizoma available in the Japanese market, and also examined their constituents on the polarization of cultured microglia. All extracts significantly decreased M1 microglia, and strains C and 29 significantly increased M2 microglia. Furthermore, the extracts of both strains significantly increased the M2/M1 ratio. Among the constituents of Rhei Rhizoma, ( +)-catechin (2), resveratrol 4'-O-β-D-(6″-O-galloyl) glucopyranoside (5), isolindleyin (8), and physcion (15) significantly increased the M2/M1 ratio. The contents of the constituents in water extract of each strain were quantified using HPLC. The extracts of strains C and 29 contained relatively large amounts of 2 and 5; and 2, 8, and 15, respectively. This study showed the water extracts of roots of cultivated Rheum strains in Japan had the effects of M2 polarization of microglia, suggesting that these strains become the candidate to develop anti-inflammatory Rhei Rhizoma. Moreover, the suitable chemical composition to possess anti-inflammatory activity in the brain was clarified for the future development of new type of Rhei Rhizoma.
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Affiliation(s)
- Tomoharu Kuboyama
- Laboratory of Pharmacognosy, Daiichi University of Pharmacy, 22-1 Tamagawa-Cho, Minami-Ku, Fukuoka, 815-8511, Japan.
| | - Kenichiro Hotta
- Section of Pharmacognosy, Division of Medicinal Resources, Institute of Natural Medicine, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan
| | - Mai Asanuma
- Faculty of Pharmaceutical Sciences, Doshisha Women's College of Liberal Arts, Kodo, Kyotanabe, Kyoto, 610-0395, Japan
| | - Yue-Wei Ge
- School of Traditional Chinese Medicine, Guangzhou Higher Education Mega Center, Guangdong Pharmaceutical University, 280 Wai Huan Dong Road, Guangzhou, China
| | - Kazufumi Toume
- Section of Pharmacognosy, Division of Medicinal Resources, Institute of Natural Medicine, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan
| | - Takuma Yamazaki
- Pharmaceutical Affairs Division, Health and Welfare, Department of Nagano Prefecture, 692-2 Habashita, Minami-Nagano, Nagano, 380-8570, Japan
| | - Katsuko Komatsu
- Section of Pharmacognosy, Division of Medicinal Resources, Institute of Natural Medicine, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan.
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15
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Huang ZP, Liu SF, Zhuang JL, Li LY, Li MM, Huang YL, Chen YH, Chen XR, Lin S, Ye LC, Chen CN. Role of microglial metabolic reprogramming in Parkinson's disease. Biochem Pharmacol 2023; 213:115619. [PMID: 37211170 DOI: 10.1016/j.bcp.2023.115619] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 05/16/2023] [Accepted: 05/16/2023] [Indexed: 05/23/2023]
Abstract
Parkinson's disease (PD) is a common age-related neurodegenerative disorder characterized by damage to nigrostriatal dopaminergic neurons. Key pathogenic mechanisms underlying PD include alpha-synuclein misfolding and aggregation, impaired protein clearance, mitochondrial dysfunction, oxidative stress, and neuroinflammation. However, to date, no study has confirmed the specific pathogenesis of PD. Similarly, current PD treatment methods still have shortcomings. Although some emerging therapies have proved effective for PD, the specific mechanism still needs further clarification. Metabolic reprogramming, a term first proposed by Warburg, is applied to the metabolic energy characteristics of tumor cells. Microglia have similar metabolic characteristics. Pro-inflammatory M1 type and anti-inflammatory M2 type are the two types of activated microglia, which exhibit different metabolic patterns in glucose, lipid, amino acid, and iron metabolism. Additionally, mitochondrial dysfunction may be involved in microglial metabolic reprogramming by activating various signaling mechanisms. Functional changes in microglia resulting from metabolic reprogramming can cause changes in the brain microenvironment, thus playing an important role in neuroinflammation or tissue repair. The involvement of microglial metabolic reprogramming in PD pathogenesis has been confirmed. Neuroinflammation and dopaminergic neuronal death can effectively be reduced by inhibiting certain metabolic pathways in M1 microglia or reverting M1 cells to the M2 phenotype. This review summarizes the relationship between microglial metabolic reprogramming and PD and provides strategies for PD treatment.
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Affiliation(s)
- Zheng-Ping Huang
- Department of Neurology, Second Affiliated Hospital, Fujian Medical University, Quanzhou, Fujian Province 362000, China
| | - Shu-Fen Liu
- Department of Neurology, Second Affiliated Hospital, Fujian Medical University, Quanzhou, Fujian Province 362000, China
| | - Jian-Long Zhuang
- Prenatal Diagnosis Center, Quanzhou Women's and Children's Hospital, Quanzhou, China
| | - Lin-Yi Li
- Department of Neurology, Second Affiliated Hospital, Fujian Medical University, Quanzhou, Fujian Province 362000, China
| | - Mi-Mi Li
- Department of Neurology, Second Affiliated Hospital, Fujian Medical University, Quanzhou, Fujian Province 362000, China
| | - Ya-Li Huang
- Department of Neurology, Second Affiliated Hospital, Fujian Medical University, Quanzhou, Fujian Province 362000, China
| | - Yan-Hong Chen
- Department of Neurology, Shishi General Hospital, Quanzhou, Fujian Province 362000, China
| | - Xiang-Rong Chen
- Department of Neurosurgery, Second Affiliated Hospital, Second Clinical Medical College, Fujian Medical University, Quanzhou, China
| | - Shu Lin
- Center of Neurological and Metabolic Research, Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian Province 362000, China; Group of Neuroendocrinology, Garvan Institute of Medical Research, 384 Victoria St, Sydney, Australia.
| | - Li-Chao Ye
- Department of Neurology, Second Affiliated Hospital, Fujian Medical University, Quanzhou, Fujian Province 362000, China.
| | - Chun-Nuan Chen
- Department of Neurology, Second Affiliated Hospital, Fujian Medical University, Quanzhou, Fujian Province 362000, China.
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16
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The Relationships Among Metal Homeostasis, Mitochondria, and Locus Coeruleus in Psychiatric and Neurodegenerative Disorders: Potential Pathogenetic Mechanism and Therapeutic Implications. Cell Mol Neurobiol 2023; 43:963-989. [PMID: 35635600 DOI: 10.1007/s10571-022-01234-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Accepted: 05/15/2022] [Indexed: 11/03/2022]
Abstract
While alterations in the locus coeruleus-noradrenergic system are present during early stages of neuropsychiatric disorders, it is unclear what causes these changes and how they contribute to other pathologies in these conditions. Data suggest that the onset of major depressive disorder and schizophrenia is associated with metal dyshomeostasis that causes glial cell mitochondrial dysfunction and hyperactivation in the locus coeruleus. The effect of the overactive locus coeruleus on the hippocampus, amygdala, thalamus, and prefrontal cortex can be responsible for some of the psychiatric symptoms. Although locus coeruleus overactivation may diminish over time, neuroinflammation-induced alterations are presumably ongoing due to continued metal dyshomeostasis and mitochondrial dysfunction. In early Alzheimer's and Parkinson's diseases, metal dyshomeostasis and mitochondrial dysfunction likely induce locus coeruleus hyperactivation, pathological tau or α-synuclein formation, and neurodegeneration, while reduction of glymphatic and cerebrospinal fluid flow might be responsible for β-amyloid aggregation in the olfactory regions before the onset of dementia. It is possible that the overactive noradrenergic system stimulates the apoptosis signaling pathway and pathogenic protein formation, leading to further pathological changes which can occur in the presence or absence of locus coeruleus hypoactivation. Data are presented in this review indicating that although locus coeruleus hyperactivation is involved in pathological changes at prodromal and early stages of these neuropsychiatric disorders, metal dyshomeostasis and mitochondrial dysfunction are critical factors in maintaining ongoing neuropathology throughout the course of these conditions. The proposed mechanistic model includes multiple pharmacological sites that may be targeted for the treatment of neuropsychiatric disorders commonly.
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Ramírez-Carreto RJ, Rodríguez-Cortés YM, Torres-Guerrero H, Chavarría A. Possible Implications of Obesity-Primed Microglia that Could Contribute to Stroke-Associated Damage. Cell Mol Neurobiol 2023:10.1007/s10571-023-01329-5. [PMID: 36935429 PMCID: PMC10025068 DOI: 10.1007/s10571-023-01329-5] [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: 10/17/2022] [Accepted: 02/14/2023] [Indexed: 03/21/2023]
Abstract
Microglia, the resident macrophages of the central nervous system, are essential players during physiological and pathological processes. Although they participate in synaptic pruning and maintenance of neuronal circuits, microglia are mainly studied by their activity modulating inflammatory environment and adapting their phenotype and mechanisms to insults detected in the brain parenchyma. Changes in microglial phenotypes are reflected in their morphology, membrane markers, and secreted substances, stimulating neighbor glia and leading their responses to control stimuli. Understanding how microglia react in various microenvironments, such as chronic inflammation, made it possible to establish therapeutic windows and identify synergic interactions with acute damage events like stroke. Obesity is a low-grade chronic inflammatory state that gradually affects the central nervous system, promoting neuroinflammation development. Obese patients have the worst prognosis when they suffer a cerebral infarction due to basal neuroinflammation, then obesity-induced neuroinflammation could promote the priming of microglial cells and favor its neurotoxic response, potentially worsening patients' prognosis. This review discusses the main microglia findings in the obesity context during the course and resolution of cerebral infarction, involving the temporality of the phenotype changes and balance of pro- and anti-inflammatory responses, which is lost in the swollen brain of an obese subject. Obesity enhances proinflammatory responses during a stroke. Obesity-induced systemic inflammation promotes microglial M1 polarization and priming, which enhances stroke-associated damage, increasing M1 and decreasing M2 responses.
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Affiliation(s)
- Ricardo Jair Ramírez-Carreto
- Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Yesica María Rodríguez-Cortés
- Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Haydee Torres-Guerrero
- Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico.
| | - Anahí Chavarría
- Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico.
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18
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Microglia secrete distinct sets of neurotoxins in a stimulus-dependent manner. Brain Res 2023; 1807:148315. [PMID: 36878343 DOI: 10.1016/j.brainres.2023.148315] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 02/07/2023] [Accepted: 03/02/2023] [Indexed: 03/07/2023]
Abstract
Microglia are the resident immune cells of the brain which regulate both the innate and adaptive neuroimmune responses in health and disease. In response to specific endogenous and exogenous stimuli, microglia transition to one of their reactive states characterized by altered morphology and function, including their secretory profile. A component of the microglial secretome is cytotoxic molecules capable of causing damage and death to nearby host cells, thus contributing to the pathogenesis of neurodegenerative disorders. Indirect evidence from secretome studies and measurements of mRNA expression using diverse microglial cell types suggest different stimuli may induce microglia to secrete distinct subsets of cytotoxins. We demonstrate the accuracy of this hypothesis directly by challenging murine BV-2 microglia-like cells with eight different immune stimuli and assessing secretion of four potentially cytotoxic molecules, including nitric oxide (NO), tumor necrosis factor α (TNF), C-X-C motif chemokine ligand 10 (CXCL10), and glutamate. Lipopolysaccharide (LPS) and a combination of interferon (IFN)-γ plus LPS induced secretion of all toxins studied. IFN-β, IFN-γ, polyinosinic:polycytidylic acid (poly I:C), and zymosan A upregulated secretion of subsets of these four cytotoxins. LPS and IFN-γ, alone or in combination, as well as IFN-β induced toxicity of BV-2 cells towards murine NSC-34 neuronal cells, while ATP, N-formylmethionine-leucyl-phenylalanine (fMLP), and phorbol 12-myristate 13-acetate (PMA) did not affect any parameters studied. Our observations contribute to a growing body of knowledge on the regulation of the microglial secretome, which may inform future development of novel therapeutics for neurodegenerative diseases, where dysregulated microglia are key contributors to pathogenesis.
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Wartchow KM, Scaini G, Quevedo J. Glial-Neuronal Interaction in Synapses: A Possible Mechanism of the Pathophysiology of Bipolar Disorder. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2023; 1411:191-208. [PMID: 36949311 DOI: 10.1007/978-981-19-7376-5_9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/24/2023]
Abstract
Bipolar disorder (BD) is a severe and chronic psychiatric disorder that affects approximately 1-4% of the world population and is characterized by recurrent episodes of mania or hypomania and depression. BD is also associated with illnesses marked by immune activation, such as metabolic syndrome, obesity, type 2 diabetes mellitus, and cardiovascular diseases. Indeed, a connection has been suggested between neuroinflammation and peripheral inflammatory markers in the pathophysiology of BD, which can be associated with the modulation of many dysfunctional processes, including synaptic plasticity, neurotransmission, neurogenesis, neuronal survival, apoptosis, and even cognitive/behavioral functioning. Rising evidence suggests that synaptic dysregulations, especially glutamatergic system dysfunction, are directly involved in mood disorders. It is becoming clear that dysregulations in connection and structural changes of glial cells play a central role in the BD pathophysiology. This book chapter highlighted the latest findings that support the theory of synaptic dysfunction in BD, providing an overview of the alterations in neurotransmitters release, astrocytic uptake, and receptor signaling, as well as the role of inflammation on glial cells in mood disorders. Particular emphasis is given to the alterations in presynaptic and postsynaptic neurons and glial cells, all cellular elements of the "tripartite synapse," compromising the neurotransmitters system, excitatory-inhibitory balance, and neurotrophic states of local networks in mood disorders. Together, these studies provide a foundation of knowledge about the exact role of the glial-neuronal interaction in mood disorders.
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Affiliation(s)
- Krista M Wartchow
- Translational Psychiatry Program, Faillace Department of Psychiatry and Behavioral Sciences at McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA
| | - Giselli Scaini
- Translational Psychiatry Program, Faillace Department of Psychiatry and Behavioral Sciences at McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA
- Neuroscience Graduate Program, The University of Texas MD Anderson Cancer Center, UTHealth Graduate School of Biomedical Sciences, Houston, TX, USA
| | - João Quevedo
- Translational Psychiatry Program, Faillace Department of Psychiatry and Behavioral Sciences at McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA.
- Neuroscience Graduate Program, The University of Texas MD Anderson Cancer Center, UTHealth Graduate School of Biomedical Sciences, Houston, TX, USA.
- Center of Excellence on Mood Disorders, Faillace Department of Psychiatry and Behavioral Sciences at McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA.
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, SC, Brazil.
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20
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The Role of Aldose Reductase in Beta-Amyloid-Induced Microglia Activation. Int J Mol Sci 2022; 23:ijms232315088. [PMID: 36499422 PMCID: PMC9739496 DOI: 10.3390/ijms232315088] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 11/28/2022] [Accepted: 11/29/2022] [Indexed: 12/03/2022] Open
Abstract
The occurrence of Alzheimer's disease has been associated with the accumulation of beta-amyloid (β-amyloid) plaques. These plaques activate microglia to secrete inflammatory molecules, which damage neurons in the brain. Thus, understanding the underlying mechanism of microglia activation can provide a therapeutic strategy for alleviating microglia-induced neuroinflammation. The aldose reductase (AR) enzyme catalyzes the reduction of glucose to sorbitol in the polyol pathway. In addition to mediating diabetic complications in hyperglycemic environments, AR also helps regulate inflammation in microglia. However, little is known about the role of AR in β-amyloid-induced inflammation in microglia and subsequent neuronal death. In this study, we confirmed that AR inhibition attenuates increased β-amyloid-induced reactive oxygen species and tumor necrosis factor α secretion by suppressing ERK signaling in BV2 cells. In addition, we are the first to report that AR inhibition reduced the phagocytotic capability and cell migration of BV2 cells in response to β-amyloid. To further investigate the protective role of the AR inhibitor sorbinil in neurons, we co-cultured β-amyloid-induced microglia with stem cell-induced neurons. sorbinil ameliorated neuronal damage in both cells in the co-culture system. In summary, our findings reveal AR regulation of microglia activation as a novel therapeutic target for Alzheimer's disease.
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21
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Haghmorad D, Soltanmohammadi A, Jadid Tavaf M, Zargarani S, Yazdanpanah E, Shadab A, Yousefi B. The protective role of interaction between vitamin D, sex hormones and calcium in multiple sclerosis. Int J Neurosci 2022:1-19. [PMID: 36369838 DOI: 10.1080/00207454.2022.2147431] [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: 07/03/2022] [Revised: 11/01/2022] [Accepted: 11/07/2022] [Indexed: 11/14/2022]
Abstract
Multiple sclerosis (MS) is a neurological disorder that causes disability and paralysis, especially among young adults. Although interactions of several factors, such as viral infections, autoimmunity, genetic and environmental factors, performance a role in the beginning and progression of the disease, the exact cause of MS is unknown to date. Different immune cells such as Th1 and Th17 play an impressive role in the immunopathogenesis of MS, while, regulatory cells such as Th2 and Treg diminish the severity of the illness. Sex hormones have a vital role in many autoimmune disorders, including multiple sclerosis. Testosterone, estrogen and progesterone have various roles in the progress of MS, which higher prevalence of disease in women and more severe in men reveals the importance of sex hormones' role in this disease. Vitamin D after chemical changes in the body, as an active hormone called calcitriol, plays an important role in regulating immune responses and improves MS by modulating the immune system. The optimum level of calcium in the body with vitamin D modulates immune responses and calcium as an essential ion in the body plays a key role in the treatment of autoimmune diseases. The interaction between vitamin D and sex hormones has protective and therapeutic effects against MS and functional synergy between estrogen and calcitriol occurs in disease recovery. Moreover, vitamin D and calcium interact with each other to regulate the immune system and shift them to anti-inflammatory responses.
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Affiliation(s)
- Dariush Haghmorad
- Cancer Research Center, Semnan University of Medical Sciences, Semnan, Iran
- Department of Immunology, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | - Azita Soltanmohammadi
- Department of Immunology, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | - Maryam Jadid Tavaf
- Department of Immunology, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | - Simin Zargarani
- Department of Immunology, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | - Esmaeil Yazdanpanah
- Immunology Research Center, Department of Immunology and Allergy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Alireza Shadab
- Department of Immunology, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | - Bahman Yousefi
- Cancer Research Center, Semnan University of Medical Sciences, Semnan, Iran
- Department of Immunology, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran
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22
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Zhu J, Jin J, Tang J. Inflammatory pathophysiological mechanisms implicated in postpartum depression. Front Pharmacol 2022; 13:955672. [PMID: 36408212 PMCID: PMC9669749 DOI: 10.3389/fphar.2022.955672] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Accepted: 10/24/2022] [Indexed: 09/10/2023] Open
Abstract
Postpartum Depression (PPD) is a serious psychiatric disorder of women within the first year after delivery. It grievously damages women's physical and mental health. Inflammatory reaction theory is well-established in depression, and also has been reported associated with PPD. This review summarized the inflammatory pathophysiological mechanisms implicated in PPD, including decreased T cell activation, increased proinflammatory cytokines secretion, active kynurenine pathway, and initiated NLRP3 inflammasome. Clinical and preclinical research are both gathered. Potential therapeutical alternatives targeting the inflammatory mechanisms of PPD were introduced. In addition, this review briefly discussed the differences of inflammatory mechanisms between PPD and depression. The research of inflammation in PPD is limited and seems just embarking, which indicates the direction we can further study. As a variety of risky factors contribute to PPD collectively, therapy for women with PPD should be comprehensive, and clinical heterogeneity should be taken into consideration. As PPD has a predictability, early clinical screening and interventions are also needed. This review aims to help readers better understand the inflammatory pathological mechanisms in PPD, so as to identify biomarkers and potential therapeutic targets in the future.
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Affiliation(s)
| | | | - Jing Tang
- Department of Pharmacy, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
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23
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Irfan Z, Khanam S, Karmakar V, Firdous SM, El Khier BSIA, Khan I, Rehman MU, Khan A. Pathogenesis of Huntington's Disease: An Emphasis on Molecular Pathways and Prevention by Natural Remedies. Brain Sci 2022; 12:1389. [PMID: 36291322 PMCID: PMC9599635 DOI: 10.3390/brainsci12101389] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Revised: 09/25/2022] [Accepted: 10/03/2022] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Huntington's disease is an inherited autosomal dominant trait neuro-degenerative disorder caused by changes (mutations) of a gene called huntingtin (htt) that is located on the short arm (p) of chromosome 4, CAG expansion mutation. It is characterized by unusual movements, cognitive and psychiatric disorders. OBJECTIVE This review was undertaken to apprehend biological pathways of Huntington's disease (HD) pathogenesis and its management by nature-derived products. Natural products can be lucrative for the management of HD as it shows protection against HD in pre-clinical trials. Advanced research is still required to assess the therapeutic effectiveness of the known organic products and their isolated compounds in HD experimental models. SUMMARY Degeneration of neurons in Huntington's disease is distinguished by progressive loss of motor coordination and muscle function. This is due to the expansion of CAG trinucleotide in the first exon of the htt gene responsible for neuronal death and neuronal network degeneration in the brain. It is believed that the factors such as molecular genetics, oxidative stress, excitotoxicity, mitochondrial dysfunction, neuroglia dysfunction, protein aggregation, and altered UPS leads to HD. The defensive effect of the natural product provides therapeutic efficacy against HD. Recent reports on natural drugs have enlightened the protective role against HD via antioxidant, anti-inflammatory, antiapoptotic, and neurofunctional regulation.
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Affiliation(s)
- Zainab Irfan
- Department of Pharmaceutical Technology, Brainware University, Kolkata 700125, West Bengal, India
| | - Sofia Khanam
- Department of Pharmacology, Calcutta Institute of Pharmaceutical Technology & AHS, Howrah 711316, West Bengal, India
| | - Varnita Karmakar
- Department of Pharmacology, Eminent College of Pharmaceutical Technology, Barasat 700126, West Bengal, India
| | - Sayeed Mohammed Firdous
- Department of Pharmacology, Calcutta Institute of Pharmaceutical Technology & AHS, Howrah 711316, West Bengal, India
| | | | - Ilyas Khan
- Department of Mathematics, College of Science Al-Zulfi, Majmaah University, Al-Majmaah 11952, Saudi Arabia
| | - Muneeb U. Rehman
- Department of Clinical Pharmacy, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Andleeb Khan
- Department of Pharmacology and Toxicology, College of Pharmacy, Jazan University, Jazan 45142, Saudi Arabia
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24
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Sun RH, Chen KW, Wang Q, Huang ZY, Wang BC, Shi ZC, Ji W. Blood brain barrier permeability and immune function of brain in rainbow trout responding to IHNV infection. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2022; 135:104482. [PMID: 35760220 DOI: 10.1016/j.dci.2022.104482] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 06/19/2022] [Accepted: 06/23/2022] [Indexed: 06/15/2023]
Abstract
Viral infection of the central nervous system (CNS) is often associated with blood-brain barrier (BBB) disruption. Mammals have developed complicated and efficient immune strategies to protect the BBB. However, the immune defense of brain and BBB permeability changes are not well-understood in teleost during virus invading. In this study, we constructed an infectious hematopoietic necrosis virus (IHNV) immersion infected rainbow trout model. After IHNV infection, pathological changes occurred in the brain, and MPO and ROS activities were significantly increased. In addition, the expression levels of BBB permeability-related genes were also changed. Transcriptome analysis showed that immune-related genes and signaling pathways in the brain were activated after IHNV infection. These results showed that the permeability of BBB increased significantly after IHNV infection, thus activating immune related factors and cells to enter the CNS through blood circulation to resist pathogenic infection.
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Affiliation(s)
- Ru-Han Sun
- Department of Aquatic Animal Medicines, College of Fisheries, Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture and Rural Affair/Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China
| | - Kai-Wei Chen
- Department of Aquatic Animal Medicines, College of Fisheries, Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture and Rural Affair/Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China
| | - Qin Wang
- Department of Aquatic Animal Medicines, College of Fisheries, Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture and Rural Affair/Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China
| | - Zhen-Yu Huang
- Department of Aquatic Animal Medicines, College of Fisheries, Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture and Rural Affair/Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China
| | - Bing-Chao Wang
- Department of Aquatic Animal Medicines, College of Fisheries, Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture and Rural Affair/Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China
| | - Ze-Chao Shi
- Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, 430223, China
| | - Wei Ji
- Department of Aquatic Animal Medicines, College of Fisheries, Key Laboratory of Freshwater Animal Breeding, Ministry of Agriculture and Rural Affair/Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China.
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25
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Ferrisi R, Gado F, Polini B, Ricardi C, Mohamed KA, Stevenson LA, Ortore G, Rapposelli S, Saccomanni G, Pertwee RG, Laprairie RB, Manera C, Chiellini G. Design, synthesis and biological evaluation of novel orthosteric-allosteric ligands of the cannabinoid receptor type 2 (CB 2R). Front Chem 2022; 10:984069. [PMID: 36238097 PMCID: PMC9551276 DOI: 10.3389/fchem.2022.984069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 09/05/2022] [Indexed: 11/13/2022] Open
Abstract
It is well known that G protein–coupled receptors (GPCRs) assume multiple active states. Orthosteric ligands and/or allosteric modulators can preferentially stabilize specific conformations, giving rise to pathway-biased signaling. One of the most promising strategies to expand the repertoire of signaling-selective GPCR activators consists of dualsteric agents, which are hybrid compounds consisting of orthosteric and allosteric pharmacophoric units. This approach proved to be very promising showing several advantages over monovalent targeting strategies, including an increased affinity or selectivity, a bias in signaling pathway activation, reduced off-target activity and therapeutic resistance. Our study focused on the cannabinoid receptor type 2 (CB2R), considered a clinically promising target for the control of brain damage in neurodegenerative disorders. Indeed, CB2R was found highly expressed in microglial cells, astrocytes, and even in some neuron subpopulations. Here, we describe the design, synthesis, and biological evaluation of two new classes of potential dualsteric (bitopic) CB2R ligands. The new compounds were obtained by connecting, through different linkers, the pharmacophoric portion of the CB2R positive allosteric modulator (PAM), EC21a, with that of the CB2R selective orthosteric agonist LV62, both developed in our laboratories. A preliminary screening enabled us to identify compound JR64a as the most promising of the series. Indeed, functional examination highlighted a signaling ‘bias’ in favor of G protein activation over βarrestin2 recruitment, combined with high affinity for CB2R and the ability to efficiently prevent inflammation in human microglial cells (HMC3) exposed to LPS/TNFα stimulation, thus demonstrating great promise for the treatment of neurodegenerative diseases.
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Affiliation(s)
| | - Francesca Gado
- Department of Pharmacy, University of Pisa, Pisa, Italy,Department of Pharmaceutical Sciences, University of Milano Statale, Milan, Italy,*Correspondence: Francesca Gado, ; Clementina Manera, ; Grazia Chiellini,
| | | | | | - Kawthar A. Mohamed
- College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, SK, Canada
| | - Lesley A. Stevenson
- School of Medicine, Medical Sciences and Nutrition, Institute of Medical Sciences, University of Aberdeen, Aberdeen, Scotland, United Kingdom
| | | | | | | | - Roger G. Pertwee
- School of Medicine, Medical Sciences and Nutrition, Institute of Medical Sciences, University of Aberdeen, Aberdeen, Scotland, United Kingdom
| | - Robert B. Laprairie
- College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, SK, Canada,Department of Pharmacology, College of Medicine, Dalhousie University, Halifax, NS, Canada
| | - Clementina Manera
- Department of Pharmacy, University of Pisa, Pisa, Italy,CISUP, Centre for Instrumentation Sharing Pisa University, Pisa, Italy,*Correspondence: Francesca Gado, ; Clementina Manera, ; Grazia Chiellini,
| | - Grazia Chiellini
- Department of Pathology, University of Pisa, Pisa, Italy,CISUP, Centre for Instrumentation Sharing Pisa University, Pisa, Italy,*Correspondence: Francesca Gado, ; Clementina Manera, ; Grazia Chiellini,
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26
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Brisch R, Wojtylak S, Saniotis A, Steiner J, Gos T, Kumaratilake J, Henneberg M, Wolf R. The role of microglia in neuropsychiatric disorders and suicide. Eur Arch Psychiatry Clin Neurosci 2022; 272:929-945. [PMID: 34595576 PMCID: PMC9388452 DOI: 10.1007/s00406-021-01334-z] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Accepted: 09/09/2021] [Indexed: 02/08/2023]
Abstract
This narrative review examines the possible role of microglial cells, first, in neuroinflammation and, second, in schizophrenia, depression, and suicide. Recent research on the interactions between microglia, astrocytes and neurons and their involvement in pathophysiological processes of neuropsychiatric disorders is presented. This review focuses on results from postmortem, positron emission tomography (PET) imaging studies, and animal models of schizophrenia and depression. Third, the effects of antipsychotic and antidepressant drug therapy, and of electroconvulsive therapy on microglial cells are explored and the upcoming development of therapeutic drugs targeting microglia is described. Finally, there is a discussion on the role of microglia in the evolutionary progression of human lineage. This view may contribute to a new understanding of neuropsychiatric disorders.
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Affiliation(s)
- Ralf Brisch
- Department of Forensic Medicine, Medical University of Gdańsk, Gdańsk, Poland
| | - Szymon Wojtylak
- Department of Pathomorphology, Medical University of Gdańsk, Gdańsk, Poland
| | - Arthur Saniotis
- Department of Anthropology, Ludwik Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wroclaw, Poland
- Department of Pharmacy, Knowledge University, Erbil, Kurdistan Region, Iraq
| | - Johann Steiner
- Department of Psychiatry and Psychotherapy, Otto-von-Guericke-University, Magdeburg, Germany
| | - Tomasz Gos
- Department of Forensic Medicine, Medical University of Gdańsk, Gdańsk, Poland
| | - Jaliya Kumaratilake
- Biological Anthropology and Comparative Anatomy Research Unit, Medical School, The University of Adelaide, Adelaide, Australia
| | - Maciej Henneberg
- Biological Anthropology and Comparative Anatomy Research Unit, Medical School, The University of Adelaide, Adelaide, Australia
- Institute of Evolutionary Medicine, University of Zurich, Zurich, Switzerland
| | - Rainer Wolf
- Department of Nursing and Health, Hochschule Fulda, University of Applied Sciences, Fulda, Germany.
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27
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Gado F, Ferrisi R, Polini B, Mohamed KA, Ricardi C, Lucarini E, Carpi S, Domenichini F, Stevenson LA, Rapposelli S, Saccomanni G, Nieri P, Ortore G, Pertwee RG, Ghelardini C, Di Cesare Mannelli L, Chiellini G, Laprairie RB, Manera C. Design, Synthesis, and Biological Activity of New CB2 Receptor Ligands: from Orthosteric and Allosteric Modulators to Dualsteric/Bitopic Ligands. J Med Chem 2022; 65:9918-9938. [PMID: 35849804 PMCID: PMC10168668 DOI: 10.1021/acs.jmedchem.2c00582] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The design of dualsteric/bitopic agents as single chemical entities able to simultaneously interact with both the orthosteric and an allosteric binding site represents a novel approach in medicinal chemistry. Biased dualsteric/bitopic agents could enhance certain signaling pathways while diminishing the others that cause unwanted side effects. We have designed, synthesized, and functionally characterized the first CB2R heterobivalent bitopic ligands. In contrast to the parent orthosteric compound, our bitopic ligands selectively target CB2R versus CB1R and show a functional selectivity for the cAMP signaling pathway versus βarrestin2 recruitment. Moreover, the most promising bitopic ligand FD-22a displayed anti-inflammatory activity in a human microglial cell inflammatory model and antinociceptive activity in vivo in an experimental mouse model of neuropathic pain. Finally, computational studies clarified the binding mode of these compounds inside the CB2R, further confirming their bitopic nature.
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Affiliation(s)
- Francesca Gado
- Department of Pharmacy, University of Pisa, Pisa 56126, Italy
| | - Rebecca Ferrisi
- Department of Pharmacy, University of Pisa, Pisa 56126, Italy
| | - Beatrice Polini
- Department of Pharmacy, University of Pisa, Pisa 56126, Italy.,Department of Pathology, University of Pisa, Pisa 56126, Italy
| | - Kawthar A Mohamed
- College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon SK S7N 5E5, Canada
| | | | - Elena Lucarini
- Department of Neuroscience, Psychology, Drug Research and Child Health, Section of Pharmacology and Toxicology, University of Florence, Florence 50139, Italy
| | - Sara Carpi
- Department of Pharmacy, University of Pisa, Pisa 56126, Italy.,NEST, Istituto Nanoscienze-CNR and Scuola Normale Superiore, Piazza San Silvestro, Pisa 56126, Italy
| | | | - Lesley A Stevenson
- Institute of Medical Sciences, University of Aberdeen, Aberdeen AB25 2ZD, Scotland, U.K
| | - Simona Rapposelli
- Department of Pharmacy, University of Pisa, Pisa 56126, Italy.,CISUP, Centre for Instrumentation Sharing Pisa University, Lungarno Pacinotti 43, Pisa 56126, Italy
| | | | - Paola Nieri
- Department of Pharmacy, University of Pisa, Pisa 56126, Italy
| | | | - Roger G Pertwee
- Institute of Medical Sciences, University of Aberdeen, Aberdeen AB25 2ZD, Scotland, U.K
| | - Carla Ghelardini
- Department of Neuroscience, Psychology, Drug Research and Child Health, Section of Pharmacology and Toxicology, University of Florence, Florence 50139, Italy
| | - Lorenzo Di Cesare Mannelli
- Department of Neuroscience, Psychology, Drug Research and Child Health, Section of Pharmacology and Toxicology, University of Florence, Florence 50139, Italy
| | - Grazia Chiellini
- Department of Pathology, University of Pisa, Pisa 56126, Italy.,CISUP, Centre for Instrumentation Sharing Pisa University, Lungarno Pacinotti 43, Pisa 56126, Italy
| | - Robert B Laprairie
- College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon SK S7N 5E5, Canada.,Department of Pharmacology, College of Medicine, Dalhousie University, Halifax B3H 4R2, Nova Scotia, Canada
| | - Clementina Manera
- Department of Pharmacy, University of Pisa, Pisa 56126, Italy.,CISUP, Centre for Instrumentation Sharing Pisa University, Lungarno Pacinotti 43, Pisa 56126, Italy
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28
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Shi W, Zhang J, Shang Z, Zhang Y, Xia Y, Fu H, Yu T. Restorative therapy using microglial depletion and repopulation for central nervous system injuries and diseases. Front Immunol 2022; 13:969127. [PMID: 35911768 PMCID: PMC9329909 DOI: 10.3389/fimmu.2022.969127] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 06/27/2022] [Indexed: 12/02/2022] Open
Abstract
Microglia are important resident immune cells in the central nervous system (CNS) and play an important role in its development, homeostasis, and disease treatments. Activated microglia perform diverse functions in mouse models of CNS neurodegenerative diseases or deficits. In humans, microglia have been linked to various neurodegenerative diseases. Following brain or spinal cord injury, microglia express pro- and anti-inflammatory phenotypes at different stages of recovery. With the development of pharmacological and genetic tools for microglial depletion, studies have demonstrated that microglial depletion exerts both positive and negative effects in the treatment of CNS diseases. Notably, microglial depletion provides an empty niche that stimulates production of new microglia. Microglial depletion and repopulation can not only treat diseases by eliminating dysfunctional microglia but can also provide an indication of the molecular mechanisms of diseases. Although this approach has shown impressive results, its use is still in its infancy. In this review, we summarize the current pharmacological and genetic tools for microglial depletion and highlight recent advances in microglial repopulation therapy for the treatment and functional recovery of neurological diseases and deficits. Finally, we briefly discuss the therapeutic challenges and prospective uses of microglial repopulation therapy.
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Affiliation(s)
- Weipeng Shi
- Department of Sports Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
- Medical Department of Qingdao University, Qingdao, China
| | - Jing Zhang
- Department of Sports Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
- Medical Department of Qingdao University, Qingdao, China
| | - Zhen Shang
- Department of Sports Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
- Medical Department of Qingdao University, Qingdao, China
| | - Yingze Zhang
- Key Laboratory of Biomechanics of Hebei Province, Department of Trauma Emergency Center, The Third Hospital of Hebei Medical University, Orthopaedics Research Institution of Hebei Province, Shijiazhuang, China
| | - Yanzhi Xia
- State Key Laboratory of Bio-Fibers and Eco-Textiles, Collaborative Innovation Center for Marine Biomass Fibers, Materials and Textiles of Shandong Province, College of Materials Science and Engineering, Institute of Marine Biobased Materials, Qingdao University, Qingdao, China
| | - Haitao Fu
- Department of Sports Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
- *Correspondence: Haitao Fu, ; Tengbo Yu,
| | - Tengbo Yu
- Department of Sports Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
- *Correspondence: Haitao Fu, ; Tengbo Yu,
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29
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Christiansen DM, McCarthy MM, Seeman MV. Where Sex Meets Gender: How Sex and Gender Come Together to Cause Sex Differences in Mental Illness. Front Psychiatry 2022; 13:856436. [PMID: 35836659 PMCID: PMC9273892 DOI: 10.3389/fpsyt.2022.856436] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 06/02/2022] [Indexed: 12/25/2022] Open
Abstract
Sex differences are prevalent in multiple mental disorders. Internalizing disorders are more commonly diagnosed in women, whereas externalizing and neurodevelopmental disorders are more often diagnosed in men. Significant sex/gender differences are reported in prevalence, symptom profile, age of onset, comorbidities, functional impairment, prognosis, as well as in responses to various treatments. In this conceptual article, we discuss theories and empirical studies of sex- and gender-related influences in mental health, by focusing on three examples: autism spectrum disorder (ASD), acknowledged as a disorder whose roots are mainly biological; eating disorders, whose origins are considered to be mainly psychosocial, and posttraumatic stress disorder (PTSD), an environmentally caused disorder with both psychosocial and biological underpinnings. We examine the ways in which sex differences emerge, from conception through adulthood. We also examine how gender dichotomies in exposures, expectations, role assumptions, and cultural traditions impact the expression of our three selected mental illnesses. We are especially interested in how sex-based influences and gender-based influences interact with one another to affect mental illness. We suggest that sex and gender are multi-faceted and complex phenomena that result in variations, not only between men and women, but also within each sex and gender through alterations in genes, hormone levels, self-perceptions, trauma experiences, and interpersonal relationships. Finally, we propose a conceptual diatheses-stress model, depicting how sex and gender come together to result in multiple sex/gender differences across mental disorders. In our model, we categorize diatheses into several categories: biological, intrapersonal, interpersonal, and environmental. These diatheses interact with exposure to stressors, ranging from relatively minor to traumatic, which allows for the sometimes bidirectional influences of acute and long-term stress responses. Sex and gender are discussed at every level of the model, thereby providing a framework for understanding and predicting sex/gender differences in expression, prevalence and treatment response of mental disorders. We encourage more research into this important field of study.
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Affiliation(s)
- Dorte M. Christiansen
- Department of Psychology, National Centre for Psychotraumatology, University of Southern Denmark, Odense, Denmark
| | - Margaret M. McCarthy
- Department of Pharmacology, University of Maryland, Baltimore, MD, United States
| | - Mary V. Seeman
- Department of Psychiatry, University of Toronto, Toronto, ON, Canada
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30
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Wang H, He Y, Sun Z, Ren S, Liu M, Wang G, Yang J. Microglia in depression: an overview of microglia in the pathogenesis and treatment of depression. J Neuroinflammation 2022; 19:132. [PMID: 35668399 PMCID: PMC9168645 DOI: 10.1186/s12974-022-02492-0] [Citation(s) in RCA: 117] [Impact Index Per Article: 58.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 05/18/2022] [Indexed: 02/07/2023] Open
Abstract
Major depressive disorder is a highly debilitating psychiatric disorder involving the dysfunction of different cell types in the brain. Microglia are the predominant resident immune cells in the brain and exhibit a critical role in depression. Recent studies have suggested that depression can be regarded as a microglial disease. Microglia regulate inflammation, synaptic plasticity, and the formation of neural networks, all of which affect depression. In this review, we highlighted the role of microglia in the pathology of depression. First, we described microglial activation in animal models and clinically depressed patients. Second, we emphasized the possible mechanisms by which microglia recognize depression-associated stress and regulate conditions. Third, we described how antidepressants (clinical medicines and natural products) affect microglial activation. Thus, this review aimed to objectively analyze the role of microglia in depression and focus on potential antidepressants. These data suggested that regulation of microglial actions might be a novel therapeutic strategy to counteract the adverse effects of devastating mental disorders.
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Affiliation(s)
- Haixia Wang
- The National Clinical Research Center for Mental Disorders and Beijing Key Laboratory of Mental Disorders, Beijing Anding Hospital, Capital Medical University, 5 Ankang Lane, Dewai Avenue, Xicheng District, Beijing, 100088, China.,Advanced Innovation Center for Human Brain Protection, Capital Medical University, 10 Xi tou tiao, You An Men Wai, Fengtai District, Beijing, 100069, China
| | - Yi He
- The National Clinical Research Center for Mental Disorders and Beijing Key Laboratory of Mental Disorders, Beijing Anding Hospital, Capital Medical University, 5 Ankang Lane, Dewai Avenue, Xicheng District, Beijing, 100088, China.,Advanced Innovation Center for Human Brain Protection, Capital Medical University, 10 Xi tou tiao, You An Men Wai, Fengtai District, Beijing, 100069, China
| | - Zuoli Sun
- The National Clinical Research Center for Mental Disorders and Beijing Key Laboratory of Mental Disorders, Beijing Anding Hospital, Capital Medical University, 5 Ankang Lane, Dewai Avenue, Xicheng District, Beijing, 100088, China.,Advanced Innovation Center for Human Brain Protection, Capital Medical University, 10 Xi tou tiao, You An Men Wai, Fengtai District, Beijing, 100069, China
| | - Siyu Ren
- The National Clinical Research Center for Mental Disorders and Beijing Key Laboratory of Mental Disorders, Beijing Anding Hospital, Capital Medical University, 5 Ankang Lane, Dewai Avenue, Xicheng District, Beijing, 100088, China.,Advanced Innovation Center for Human Brain Protection, Capital Medical University, 10 Xi tou tiao, You An Men Wai, Fengtai District, Beijing, 100069, China
| | - Mingxia Liu
- The National Clinical Research Center for Mental Disorders and Beijing Key Laboratory of Mental Disorders, Beijing Anding Hospital, Capital Medical University, 5 Ankang Lane, Dewai Avenue, Xicheng District, Beijing, 100088, China.,Advanced Innovation Center for Human Brain Protection, Capital Medical University, 10 Xi tou tiao, You An Men Wai, Fengtai District, Beijing, 100069, China
| | - Gang Wang
- The National Clinical Research Center for Mental Disorders and Beijing Key Laboratory of Mental Disorders, Beijing Anding Hospital, Capital Medical University, 5 Ankang Lane, Dewai Avenue, Xicheng District, Beijing, 100088, China. .,Advanced Innovation Center for Human Brain Protection, Capital Medical University, 10 Xi tou tiao, You An Men Wai, Fengtai District, Beijing, 100069, China.
| | - Jian Yang
- The National Clinical Research Center for Mental Disorders and Beijing Key Laboratory of Mental Disorders, Beijing Anding Hospital, Capital Medical University, 5 Ankang Lane, Dewai Avenue, Xicheng District, Beijing, 100088, China. .,Advanced Innovation Center for Human Brain Protection, Capital Medical University, 10 Xi tou tiao, You An Men Wai, Fengtai District, Beijing, 100069, China.
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31
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Reducing neuroinflammation via therapeutic compounds and lifestyle to prevent or delay progression of Parkinson's disease. Ageing Res Rev 2022; 78:101618. [PMID: 35395416 DOI: 10.1016/j.arr.2022.101618] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Revised: 03/08/2022] [Accepted: 04/01/2022] [Indexed: 02/06/2023]
Abstract
Parkinson's disease (PD) is the second most common age-associated neurodegenerative disorder and is characterised by progressive loss of dopamine neurons in the substantia nigra. Peripheral immune cell infiltration and activation of microglia and astrocytes are observed in PD, a process called neuroinflammation. Neuroinflammation is a fundamental response to protect the brain but, when chronic, it triggers neuronal damage. In the last decade, central and peripheral inflammation were suggested to occur at the prodromal stage of PD, sustained throughout disease progression, and may play a significant role in the pathology. Understanding the pathological mechanisms of PD has been a high priority in research, primarily to find effective treatments once symptoms are present. Evidence indicates that early life exposure to neuroinflammation as a consequence of life events, environmental or behaviour factors such as exposure to infections, pollution or a high fat diet increase the risk of developing PD. Many studies show healthy habits and products that decrease neuroinflammation also reduce the risk of PD. Here, we aim to stimulate discussion about the role of neuroinflammation in PD onset and progression. We highlight that reducing neuroinflammation throughout the lifespan is critical for preventing idiopathic PD, and present epidemiological studies that detail risk and protective factors. It is possible that introducing lifestyle changes that reduce neuroinflammation at the time of PD diagnosis may slow symptom progression. Finally, we discuss compounds and therapeutics to treat the neuroinflammation associated with PD.
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Salmani H, Hosseini M, Nabi MM, Samadi-Noshahr Z, Baghcheghi Y, Sadeghi M. Exacerbated immune response of the brain to peripheral immune challenge in post-septic mice. Brain Res Bull 2022; 185:74-85. [PMID: 35523357 DOI: 10.1016/j.brainresbull.2022.04.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 04/24/2022] [Accepted: 04/26/2022] [Indexed: 11/02/2022]
Abstract
BACKGROUND Mounting evidence indicates that sepsis can induce long-lasting brain dysfunction. Recently, it has been proposed that the brain may become more sensitive to systemic inflammation if microglial cells are already primed. Microglial priming has been demonstrated in aging, traumatic brain injury, and neurodegenerative diseases. There is evidence suggesting that systemic inflammation may also prime microglia. This study aimed to investigate the brain's response to a second immune challenge in sepsis survivors and the possible role of microglial priming. METHODS Adult BALB/c mice were intraperitoneally (ip) injected with 5 mg/kg lipopolysaccharide (LPS) for sepsis induction. One month later, mice received a second immune challenge (LPS, 0.33 mg/kg). A cohort of mice was sacrificed 2 h post-LPS injection to measure inflammatory mediators mRNA expression. The second cohort of mice was tested on a battery of behavioral tests and then sacrificed, and brain tissues were removed for biochemical analyses. RESULTS Results showed that in septic mice, secondary LPS challenge induced heightened neuroinflammation compared to the control mice, as evident by a significant increase of IL-1β, TNF-α, and iNOS mRNA expression. In the immunochallenged septic mice, the anti-inflammatory cytokine IL-10 expression was also significantly increased compared to the control mice. Sepsis induction significantly disrupted the recognition ability in the novel object recognition, but the second immune challenge had no significant effect. However, immunochallenged septic mice exhibited more anxiety-like behavior in the marble burying task and intensive depressive-like behavior in the forced swim test. Additionally, the second immune challenge reduced arginase-1 levels in septic but not control mice. On the other hand, CIITA levels were increased more significantly in the LPS injected control mice compared to septic mice. Neither sepsis nor the second immune challenge significantly affected inhibitory avoidance behavior and Aβ1-42 levels in brain tissue. CONCLUSION Our finding suggests that low-grade immune challenge can induce exacerbated behavioral change and exaggerated inflammatory response in the brain of post-septic mice.
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Affiliation(s)
- Hossein Salmani
- Division of Neurocognitive Sciences, Psychiatry and Behavioral Sciences Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; Student Research Committee, Jiroft University of Medical Sciences, Jiroft, Iran.
| | - Mahmoud Hosseini
- Division of Neurocognitive Sciences, Psychiatry and Behavioral Sciences Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Mohammad Mahdi Nabi
- Mashhad Branch, Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Mashhad, Iran; Department of Animal Science, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran.
| | | | - Yousef Baghcheghi
- Student Research Committee, Jiroft University of Medical Sciences, Jiroft, Iran.
| | - Mostafa Sadeghi
- Department of Animal Science, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran.
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Zhang W, Fan X, Fan Z, Wu B, Wang M, Duan W, Song B. Acute exposure to paraquat affects the phenotypic differentiation of substantia nigra microglia in rats. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:21339-21347. [PMID: 34761315 DOI: 10.1007/s11356-021-17262-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Accepted: 10/25/2021] [Indexed: 06/13/2023]
Abstract
The toxicity of the bipyridine cationic herbicide paraquat (PQ) to the lung and kidneys has been widely documented, but the acute toxic effects of PQ on the nervous system have received little attention. This study aimed to explore the changes in the phenotypic differentiation of microglia in rats caused by acute PQ exposure. As results, acute PQ exposure induced pyknosis, edema, and apoptosis in substantia nigra neurons. Immunohistochemistry and western blotting showed that, on day 18, with the increase of exposure dose, the number of Iba-1-positive cells presented an increasing trend with no statistically significant difference among the groups (P > 0.05). Compared with the control group, the process length of Iba-1-positive cells decreased of acute 25 mg/kg PQ exposure on day 18 (P < 0.05). Compared with the control group, on day 39, the number of Iba-1-positive cells in the SN decreased of acute 25 mg/kg PQ exposure, while that increased of acute 45 mg/kg PQ exposure (P < 0.05). The number of endpoints decreased of acute 25 mg/kg PQ exposure (P < 0.05). The process length became shorter both of acute 25 mg/kg and 45 mg/kg PQ exposure (P < 0.05). On day 69, compared with the control group, the number of Iba-1-positive cells in the SN significantly increased of acute 45 mg/kg PQ exposure (P < 0.05). The number of endpoints increased and the process length became longer of acute 25 mg/kg PQ exposure (P < 0.05). Then, the mean fluorescence intensity of inducible nitric oxide synthase (iNOS) and arginine 1 (ARG1) was compared. The number of the M1 phenotype of microglia increased during the early stage of acute 25 mg/kg PQ exposure, whereas the number of the M2 phenotype of microglia increased during the early stage of acute 45 mg/kg PQ exposure (P < 0.05). On day 39, compared with the control group, the expression of iNOS in the SN of acute 45 mg/kg PQ exposure increased than of acute 25 mg/kg exposure. The expression of Arg-1 of 25 mg/kg PQ exposure was significantly increased (P < 0.05). On day 69, the expression of iNOS and ARG1 increased in the 25 and 45 mg/kg PQ exposure groups. In summary, changes in microglia phenotypic differentiation were related to exposure dose and exposure time (P < 0.05).
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Affiliation(s)
- Wendi Zhang
- Department of Occupational Health and Environmental Health, School of Public Health, Hebei Medical University, Shijiazhuang, 050000, Hebei, China
- Hebei Province Key Laboratory of Environment and Human Health, Shijiazhuang, 050000, Hebei, China
| | - Xiaobei Fan
- Department of Occupational Health and Environmental Health, School of Public Health, Hebei Medical University, Shijiazhuang, 050000, Hebei, China
- Hebei Province Key Laboratory of Environment and Human Health, Shijiazhuang, 050000, Hebei, China
| | - Zhuo Fan
- Department of Occupational Health and Environmental Health, School of Public Health, Hebei Medical University, Shijiazhuang, 050000, Hebei, China
- Hebei Province Key Laboratory of Environment and Human Health, Shijiazhuang, 050000, Hebei, China
| | - Bailin Wu
- Department of Radiology, The Second Hospital of Hebei Medical University, Shijiazhuang, 050000, Hebei, China
| | - Mengchao Wang
- Department of Occupational Health and Environmental Health, School of Public Health, Hebei Medical University, Shijiazhuang, 050000, Hebei, China
- Hebei Province Key Laboratory of Environment and Human Health, Shijiazhuang, 050000, Hebei, China
| | - Wanyu Duan
- Department of Occupational Health and Environmental Health, School of Public Health, Hebei Medical University, Shijiazhuang, 050000, Hebei, China
- Hebei Province Key Laboratory of Environment and Human Health, Shijiazhuang, 050000, Hebei, China
| | - Bo Song
- Department of Occupational Health and Environmental Health, School of Public Health, Hebei Medical University, Shijiazhuang, 050000, Hebei, China.
- Hebei Province Key Laboratory of Environment and Human Health, Shijiazhuang, 050000, Hebei, China.
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Clark KC, Wang D, Kumar P, Mor S, Kulubya E, Lazar S, Wang A. The Molecular Mechanisms Through Which Placental Mesenchymal Stem Cell-Derived Extracellular Vesicles Promote Myelin Regeneration. Adv Biol (Weinh) 2022; 6:e2101099. [PMID: 35023637 PMCID: PMC9225676 DOI: 10.1002/adbi.202101099] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 11/30/2021] [Indexed: 02/03/2023]
Abstract
Multiple sclerosis (MS) is a debilitating degenerative disease characterized by an immunological attack on the myelin sheath leading to demyelination and axon degeneration. Mesenchymal stem/stromal cells (MSCs) and secreted extracellular vesicles (EVs) have become attractive targets as therapies to treat neurodegenerative diseases such as MS due to their potent immunomodulatory and regenerative properties. The placenta is a unique source of MSCs (PMSCs), demonstrates "fetomaternal" tolerance during pregnancy, and serves as a novel source of MSCs for the treatment of neurodegenerative diseases. PMSCs and PMSC-EVs have been shown to promote remyelination in animal models of MS, however, the molecular mechanisms by which modulation of autoimmunity and promotion of myelination occurs have not been well elucidated. The current review will address the molecular mechanisms by which PMSC-EVs can promote remyelination in MS.
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Identification of an Orally Bioavailable, Brain-Penetrant Compound with Selectivity for the Cannabinoid Type 2 Receptor. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27020509. [PMID: 35056824 PMCID: PMC8778670 DOI: 10.3390/molecules27020509] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 01/11/2022] [Accepted: 01/11/2022] [Indexed: 11/17/2022]
Abstract
Modulation of the endocannabinoid system (ECS) is of great interest for its therapeutic relevance in several pathophysiological processes. The CB2 subtype is largely localized to immune effectors, including microglia within the central nervous system, where it promotes anti-inflammation. Recently, a rational drug design toward precise modulation of the CB2 active site revealed the novelty of Pyrrolo[2,1-c][1,4]benzodiazepines tricyclic chemotype with a high conformational similarity in comparison to the existing leads. These compounds are structurally unique, confirming their chemotype novelty. In our continuing search for new chemotypes as selective CB2 regulatory molecules, following SAR approaches, a total of 17 selected (S,E)-11-[2-(arylmethylene)hydrazono]-PBD analogs were synthesized and tested for their ability to bind to the CB1 and CB2 receptor orthosteric sites. A competitive [3H]CP-55,940 binding screen revealed five compounds that exhibited >60% displacement at 10 μM concentration. Further concentration-response analysis revealed two compounds, 4k and 4q, as potent and selective CB2 ligands with sub-micromolar activities (Ki = 146 nM and 137 nM, respectively). In order to support the potential efficacy and safety of the analogs, the oral and intravenous pharmacokinetic properties of compound 4k were sought. Compound 4k was orally bioavailable, reaching maximum brain concentrations of 602 ± 162 ng/g (p.o.) with an elimination half-life of 22.9 ± 3.73 h. Whether administered via the oral or intravenous route, the elimination half-lives ranged between 9.3 and 16.7 h in the liver and kidneys. These compounds represent novel chemotypes, which can be further optimized for improved affinity and selectivity toward the CB2 receptor.
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Jafari Z, Bigham A, Sadeghi S, Dehdashti SM, Rabiee N, Abedivash A, Bagherzadeh M, Nasseri B, Karimi-Maleh H, Sharifi E, Varma RS, Makvandi P. Nanotechnology-Abetted Astaxanthin Formulations in Multimodel Therapeutic and Biomedical Applications. J Med Chem 2022; 65:2-36. [PMID: 34919379 PMCID: PMC8762669 DOI: 10.1021/acs.jmedchem.1c01144] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Indexed: 12/13/2022]
Abstract
Astaxanthin (AXT) is one of the most important fat-soluble carotenoids that have abundant and diverse therapeutic applications namely in liver disease, cardiovascular disease, cancer treatment, protection of the nervous system, protection of the skin and eyes against UV radiation, and boosting the immune system. However, due to its intrinsic reactivity, it is chemically unstable, and therefore, the design and production processes for this compound need to be precisely formulated. Nanoencapsulation is widely applied to protect AXT against degradation during digestion and storage, thus improving its physicochemical properties and therapeutic effects. Nanocarriers are delivery systems with many advantages─ease of surface modification, biocompatibility, and targeted drug delivery and release. This review discusses the technological advancement in nanocarriers for the delivery of AXT through the brain, eyes, and skin, with emphasis on the benefits, limitations, and efficiency in practice.
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Affiliation(s)
- Zohreh Jafari
- Department
of Medical Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, 19857-17443 Tehran, Iran
| | - Ashkan Bigham
- Institute
of Polymers, Composites and Biomaterials
- National Research Council (IPCB-CNR), Viale J.F. Kennedy 54 - Mostra D’Oltremare
pad. 20, 80125 Naples, Italy
| | - Sahar Sadeghi
- Department
of Medical Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, 19857-17443 Tehran, Iran
| | - Sayed Mehdi Dehdashti
- Cellular
and Molecular Biology Research Center, Shahid
Beheshti University of Medical Sciences, 19857-17443 Tehran, Iran
| | - Navid Rabiee
- Department
of Chemistry, Sharif University of Technology, 11155-9161 Tehran, Iran
- Department
of Physics, Sharif University of Technology, 11155-9161 Tehran, Iran
- School
of Engineering, Macquarie University, Sydney, New South Wales 2109, Australia
| | - Alireza Abedivash
- Department
of Basic Sciences, Sari Agricultural Sciences
and Natural Resources University, 48181-68984 Sari, Iran
| | - Mojtaba Bagherzadeh
- Department
of Chemistry, Sharif University of Technology, 11155-9161 Tehran, Iran
| | - Behzad Nasseri
- Department
of Medical Biotechnology, Faculty of Advance Medical Sciences, Tabriz University of Medical Sciences, 51664 Tabriz, Iran
| | - Hassan Karimi-Maleh
- School
of Resources and Environment, University
of Electronic Science and Technology of China, P.O. Box 611731, Xiyuan Avenue, 610054 Chengdu, PR China
- Department
of Chemical Engineering, Laboratory of Nanotechnology,
Quchan University of Technology, 94771-67335 Quchan, Iran
- Department
of Chemical Sciences, University of Johannesburg, P.O. Box 17011, Doornfontein Campus,
2028, 2006 Johannesburg, South Africa
| | - Esmaeel Sharifi
- Institute
of Polymers, Composites and Biomaterials
- National Research Council (IPCB-CNR), Viale J.F. Kennedy 54 - Mostra D’Oltremare
pad. 20, 80125 Naples, Italy
- Department
of Tissue Engineering and Biomaterials, School of Advanced Medical
Sciences and Technologies, Hamadan University
of Medical Sciences, 6517838736 Hamadan, Iran
| | - Rajender S. Varma
- Regional
Centre of Advanced Technologies and Materials, Czech Advanced Technology
and Research Institute, Palacky University, Šlechtitelů 27, 78371 Olomouc, Czech Republic
| | - Pooyan Makvandi
- Centre for
Materials Interfaces, Istituto Italiano
di Tecnologia, viale
Rinaldo Piaggio 34, 56025 Pontedera, Pisa, Italy
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Francelle L, Mazzulli JR. Neuroinflammation in aucher disease, neuronal ceroid lipofuscinosis, and commonalities with Parkinson’s disease. Brain Res 2022; 1780:147798. [PMID: 35063468 PMCID: PMC9126024 DOI: 10.1016/j.brainres.2022.147798] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 01/05/2022] [Accepted: 01/13/2022] [Indexed: 12/13/2022]
Abstract
Lysosomal storage diseases (LSDs) are rare genetic disorders caused by a disruption in cellular clearance, resulting in pathological storage of undegraded lysosomal substrates. Recent clinical and genetic studies have uncovered links between multiple LSDs and common neurodegenerative diseases such as Parkinson's disease (PD). Here, we review recent literature describing the role of glia cells and neuroinflammation in PD and LSDs, including Gaucher disease (GD) and neuronal ceroid lipofuscinosis (NCL), and highlight converging inflammation pathways that lead to neuron loss. Recent data indicates that lysosomal dysfunction and accumulation of storage materials can initiate the activation of glial cells, through interaction with cell surface or cytosolic pattern recognition receptors that detect pathogenic aggregates of cellular debris. Activated glia cells could act to protect neurons through the elimination of toxic protein or lipid aggregates early in the disease process. However prolonged glial activation that occurs over several decades in chronic-age related neurodegeneration could induce the inappropriate elimination of synapses, leading to neuron loss. These studies provide mechanistic insight into the relationship between lysosomal dysfunction and glial activation, and offer novel therapeutic pathways for the treatment of PD and LSDs focused on reducing neuroinflammation and mitigating cell loss.
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Shukuri M, Uchino M, Sakamaki T, Onoe S, Hosoi R, Todoroki K, Arano Y, Sakai T, Akizawa H, Inoue O. Ex vivo imaging and analysis of ROS generation correlated with microglial activation in rat model with acute neuroinflammation induced by intrastriatal injection of LPS. Biochem Biophys Res Commun 2021; 584:101-106. [PMID: 34781201 DOI: 10.1016/j.bbrc.2021.11.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 11/02/2021] [Indexed: 11/25/2022]
Abstract
Neuroinflammation and oxidative stress are hallmarks of neurodegenerative diseases. Microglia, the major important regulators of neuroinflammation, are activated in response to excessive generation of reactive oxygen species (ROS) from damaged cells and resulting in elevated and sustained damages. However, the relationship between microglia and ROS-regulatory system in the early stages of neuroinflammation prior to the appearance of neuronal damages have not been elucidated in detail. In this study, we analyzed the time-dependent changes in ROS generation during acute neuroinflammation in rats that were given an intrastriatal injection of lipopolysaccharide (LPS). We evaluated the effects of minocycline, an anti-inflammatory antibiotic, and N,N'-dimethylthiourea (DMTU), a radical scavenger, to understand the correlation between activated microglia and ROS generation. Ex vivo fluorescence imaging using dihydroethidium (DHE) clearly demonstrated an increased ROS level in the infused side of striatum in the rats treated with LPS. The level of ROS was changed in time-dependent manner, and the highest level of ROS was observed on day 3 after the infusion of LPS. Immunohistochemical studies revealed that time-dependent changes in ROS generation were well correlated to the presence of activated microglia. The inhibition of microglial activation by minocycline remarkably reduced ROS levels in the LPS-injected striatum, which indicated that the increased ROS generation caused by LPS was induced by activated microglia. DMTU decreased ROS generation and resulted in remarkable inhibitory effect on microglial activation. This study demonstrated that ROS generation during acute neuroinflammation induced by LPS was considerably associated with microglial activation, in an intact rat brain. The results provides a basis for understanding the interaction of ROS-regulatory system and activated microglia during neuroinflammation underlying neurodegenerative diseases.
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Affiliation(s)
- Miho Shukuri
- Laboratory of Physical Chemistry, Showa Pharmaceutical University, 3-3165 Higashi-Tamagawagakuen, Machida, Tokyo, 194-8543, Japan.
| | - Miyu Uchino
- Laboratory of Physical Chemistry, Showa Pharmaceutical University, 3-3165 Higashi-Tamagawagakuen, Machida, Tokyo, 194-8543, Japan
| | - Takafumi Sakamaki
- Laboratory of Physical Chemistry, Showa Pharmaceutical University, 3-3165 Higashi-Tamagawagakuen, Machida, Tokyo, 194-8543, Japan
| | - Satoru Onoe
- Laboratory of Physical Chemistry, Showa Pharmaceutical University, 3-3165 Higashi-Tamagawagakuen, Machida, Tokyo, 194-8543, Japan.
| | - Rie Hosoi
- Division of Health Sciences, Graduate School of Medicine, Osaka University, 1-7 Yamadaoka, Suita, Osaka, 565-0871, Japan.
| | - Kenichiro Todoroki
- Department of Analytical and Bio-Analytical Chemistry, School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka, 422-8526, Japan.
| | - Yasushi Arano
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8675, Japan.
| | - Toshihiro Sakai
- Hanwa Intelligent Medical Center, Hanwa Daini Senboku Hospital, 3176 Fukaikitamachi, Naka-ku, Sakai, Osaka, 599-8271, Japan.
| | - Hiromichi Akizawa
- Laboratory of Physical Chemistry, Showa Pharmaceutical University, 3-3165 Higashi-Tamagawagakuen, Machida, Tokyo, 194-8543, Japan.
| | - Osamu Inoue
- Hanwa Intelligent Medical Center, Hanwa Daini Senboku Hospital, 3176 Fukaikitamachi, Naka-ku, Sakai, Osaka, 599-8271, Japan.
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Xia CY, Xu JK, Li L, Lian WW, Yan Y, Ma BZ, He J, Zhang WK. Identifying the mechanism underlying antidepressant-like effects of loganin by network pharmacology in combination with experimental validation. JOURNAL OF ETHNOPHARMACOLOGY 2021; 281:114526. [PMID: 34400264 DOI: 10.1016/j.jep.2021.114526] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 08/13/2021] [Accepted: 08/13/2021] [Indexed: 06/13/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Loganin, an iridoid glycoside, is one of the quality control indexes of Cornus officinalis Sieb. et Zucc. Increasing evidence emphasize the important role of inflammation in the pathology of depression, which links depression with other chronic diseases. Loganin prevents inflammatory response in multiple diseases and reverses depressive-like behaviors. However, the mechanisms underlying antidepressant-like effects of loganin for the treatment of inflammation-associated depression are not utterly understood. AIM OF THE STUDY The present study was designed to predict the potential targets of loganin against inflammation-associated depression using a network pharmacology approach. MATERIALS AND METHODS Pharmmapper and Uniport were used to predict loganin-related targets. Targets of inflammation were identified through GeneCards databases and Online Mendelian Inheritance in Man (OMIM). Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis were used to identify the potential mechanism. Finally, qRT-PCR and ELISA were used to confirm the role of loganin on these targets. RESULTS There were 15 nodes in the loganin-inflammation-depression intersection targets network. In the network, the degree value of CTNNB1 was above 3. Among top ten pathways identified by KEGG analysis, Th1/Th2 cell differentiation and IL-17 signaling pathways were related with both inflammation and depression. As indicated by qRT-PCR results, loganin increased CTNNB1 mRNA level. Moreover, loganin elevated M2 markers of microglia but decreased M1 markers of microglia against lipopolysaccharide (LPS), indicated by qRT-PCR results and ELISA results. CONCLUSION CTNNB1 was the main target of loganin. Loganin alleviated LPS-induced inflammation through inhibiting M1 polarization of microglia. Our results provide a better understanding of loganin-induced antidepressant-like effects for the treatment of inflammation-associated depression.
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Affiliation(s)
- Cong-Yuan Xia
- Department of Pharmacy & Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing, 100029, People's Republic of China
| | - Jie-Kun Xu
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, 100029, People's Republic of China
| | - Li Li
- Key Laboratory of Cosmetic, China National Light Industry, Beijing Technology and Business University, Beijing, 100048, People's Republic of China
| | - Wen-Wen Lian
- Department of Pharmacy & Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing, 100029, People's Republic of China
| | - Yu Yan
- Department of Pharmacy & Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing, 100029, People's Republic of China
| | - Bing-Zhi Ma
- Department of Pharmacy & Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing, 100029, People's Republic of China
| | - Jun He
- Department of Pharmacy & Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing, 100029, People's Republic of China.
| | - Wei-Ku Zhang
- Department of Pharmacy & Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing, 100029, People's Republic of China.
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Jhan MK, Chen CL, Shen TJ, Tseng PC, Wang YT, Satria RD, Yu CY, Lin CF. Polarization of Type 1 Macrophages Is Associated with the Severity of Viral Encephalitis Caused by Japanese Encephalitis Virus and Dengue Virus. Cells 2021; 10:3181. [PMID: 34831405 PMCID: PMC8621422 DOI: 10.3390/cells10113181] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 11/09/2021] [Accepted: 11/11/2021] [Indexed: 12/20/2022] Open
Abstract
Infection with flaviviruses causes mild to severe diseases, including viral hemorrhagic fever, vascular shock syndrome, and viral encephalitis. Several animal models explore the pathogenesis of viral encephalitis, as shown by neuron destruction due to neurotoxicity after viral infection. While neuronal cells are injuries caused by inflammatory cytokine production following microglial/macrophage activation, the blockade of inflammatory cytokines can reduce neurotoxicity to improve the survival rate. This study investigated the involvement of macrophage phenotypes in facilitating CNS inflammation and neurotoxicity during flavivirus infection, including the Japanese encephalitis virus, dengue virus (DENV), and Zika virus. Mice infected with different flaviviruses presented encephalitis-like symptoms, including limbic seizure and paralysis. Histology indicated that brain lesions were identified in the hippocampus and surrounded by mononuclear cells. In those regions, both the infiltrated macrophages and resident microglia were significantly increased. RNA-seq analysis showed the gene profile shifting toward type 1 macrophage (M1) polarization, while M1 markers validated this phenomenon. Pharmacologically blocking C-C chemokine receptor 2 and tumor necrosis factor-α partly retarded DENV-induced M1 polarization. In summary, flavivirus infection, such as JEV and DENV, promoted type 1 macrophage polarization in the brain associated with encephalitic severity.
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MESH Headings
- Animals
- Animals, Suckling
- Cell Line
- Cell Polarity
- Dengue Virus/physiology
- Disease Models, Animal
- Encephalitis Virus, Japanese/physiology
- Encephalitis, Japanese/immunology
- Encephalitis, Japanese/pathology
- Encephalitis, Japanese/virology
- Encephalitis, Viral/immunology
- Encephalitis, Viral/pathology
- Encephalitis, Viral/virology
- Hippocampus/pathology
- Inflammation/pathology
- Macrophages/pathology
- Mice, Inbred ICR
- Neurotoxins/toxicity
- Receptors, CCR2/metabolism
- Severity of Illness Index
- Tumor Necrosis Factor-alpha/metabolism
- Mice
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Affiliation(s)
- Ming-Kai Jhan
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei 110, Taiwan; (M.-K.J.); (T.-J.S.)
- Department of Microbiology and Immunology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan; (P.-C.T.); (Y.-T.W.); (R.D.S.)
| | - Chia-Ling Chen
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei 110, Taiwan;
| | - Ting-Jing Shen
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei 110, Taiwan; (M.-K.J.); (T.-J.S.)
- Department of Microbiology and Immunology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan; (P.-C.T.); (Y.-T.W.); (R.D.S.)
| | - Po-Chun Tseng
- Department of Microbiology and Immunology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan; (P.-C.T.); (Y.-T.W.); (R.D.S.)
- Core Laboratory of Immune Monitoring, Office of Research & Development, Taipei Medical University, Taipei 110, Taiwan
| | - Yung-Ting Wang
- Department of Microbiology and Immunology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan; (P.-C.T.); (Y.-T.W.); (R.D.S.)
| | - Rahmat Dani Satria
- Department of Microbiology and Immunology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan; (P.-C.T.); (Y.-T.W.); (R.D.S.)
- International Ph.D. Program in Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
- Laboratory Medicine, Department of Clinical Pathology, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia
- Clinical Laboratory Installation, Dr. Sardjito Central General Hospital, Yogyakarta 55281, Indonesia
| | - Chia-Yi Yu
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Miaoli 350, Taiwan;
| | - Chiou-Feng Lin
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei 110, Taiwan; (M.-K.J.); (T.-J.S.)
- Department of Microbiology and Immunology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan; (P.-C.T.); (Y.-T.W.); (R.D.S.)
- Core Laboratory of Immune Monitoring, Office of Research & Development, Taipei Medical University, Taipei 110, Taiwan
- International Ph.D. Program in Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
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The Effect of Physical Exercise on Cognitive Impairment in Neurodegenerative Disease: From Pathophysiology to Clinical and Rehabilitative Aspects. Int J Mol Sci 2021; 22:ijms222111632. [PMID: 34769062 PMCID: PMC8583932 DOI: 10.3390/ijms222111632] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 10/24/2021] [Accepted: 10/26/2021] [Indexed: 12/11/2022] Open
Abstract
Neurodegenerative diseases are a group of pathologies that cause severe disability due to motor and cognitive limitations. In particular, cognitive impairment is a growing health and socioeconomic problem which is still difficult to deal with today. As there are no pharmacologically effective treatments for cognitive deficits, scientific interest is growing regarding the possible impacts of healthy lifestyles on them. In this context, physical activity is gaining more and more evidence as a primary prevention intervention, a nonpharmacological therapy and a rehabilitation tool for improving cognitive functions in neurodegenerative diseases. In this descriptive overview we highlight the neurobiological effects of physical exercise, which is able to promote neuroplasticity and neuroprotection by acting at the cytokine and hormonal level, and the consequent positive clinical effects on patients suffering from cognitive impairment.
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Fernández-Albarral JA, Martínez-López MA, Marco EM, de Hoz R, Martín-Sánchez B, San Felipe D, Salobrar-García E, López-Cuenca I, Pinazo-Durán MD, Salazar JJ, Ramírez JM, López-Gallardo M, Ramírez AI. Is Saffron Able to Prevent the Dysregulation of Retinal Cytokines Induced by Ocular Hypertension in Mice? J Clin Med 2021; 10:jcm10214801. [PMID: 34768320 PMCID: PMC8584889 DOI: 10.3390/jcm10214801] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 10/17/2021] [Accepted: 10/18/2021] [Indexed: 01/15/2023] Open
Abstract
Cytokine- and chemokine-mediated signalling is involved in the neuroinflammatory process that leads to retinal ganglion cell (RGC) damage in glaucoma. Substances with anti-inflammatory properties could decrease these cytokines and chemokines and thus prevent RGC death. The authors of this study analysed the anti-inflammatory effect of a hydrophilic saffron extract standardized to 3% crocin content, focusing on the regulation of cytokine and chemokine production, in a mouse model of unilateral laser-induced ocular hypertension (OHT). We demonstrated that following saffron treatment, most of the concentration of proinflammatory cytokines (IL-1β, IFN-γ, TNF-α, and IL-17), anti-inflammatory cytokines (IL-4 and IL-10), Brain-derived Neurotrophic Factor (BDNF), Vascular Endothelial Growth Factor (VEGF), and fractalkine were unaffected in response to laser-induced OHT in both the OHT eye and its contralateral eye. Only IL-6 levels were significantly increased in the OHT eye one day after laser induction compared with the control group. These results differed from those observed in animals subjected to unilateral OHT and not treated with saffron, where changes in cytokine levels occurred in both eyes. Therefore, saffron extract regulates the production of proinflammatory cytokines, VEGF, and fractalkine induced by increasing intraocular pressure (IOP), protecting the retina from inflammation. These results indicate that saffron could be beneficial in glaucoma by helping to reduce the inflammatory process.
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Affiliation(s)
- José A. Fernández-Albarral
- Instituto de Investigaciones Oftalmológicas Ramón Castroviejo, Grupo UCM 920105, Universidad Complutense de Madrid, 28040 Madrid, Spain; (J.A.F.-A.); (R.d.H.); (E.S.-G.); (I.L.-C.); (J.J.S.); (J.M.R.)
| | - Miguel A. Martínez-López
- Departamento de Fisiología, Facultad de Medicina, Grupo UCM 951579, Universidad Complutense de Madrid, 28040 Madrid, Spain; (M.A.M.-L.); (B.M.-S.); (D.S.F.)
| | - Eva M. Marco
- Departamento de Genética, Facultad de CC. Biológicas, Fisiología y Microbiología, Grupo UCM 951579, Universidad Complutense de Madrid, 28040 Madrid, Spain;
| | - Rosa de Hoz
- Instituto de Investigaciones Oftalmológicas Ramón Castroviejo, Grupo UCM 920105, Universidad Complutense de Madrid, 28040 Madrid, Spain; (J.A.F.-A.); (R.d.H.); (E.S.-G.); (I.L.-C.); (J.J.S.); (J.M.R.)
- Departamento de Inmunología, Facultad de Óptica y Optometría, Oftalmología y ORL, IdISSC, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Beatriz Martín-Sánchez
- Departamento de Fisiología, Facultad de Medicina, Grupo UCM 951579, Universidad Complutense de Madrid, 28040 Madrid, Spain; (M.A.M.-L.); (B.M.-S.); (D.S.F.)
| | - Diego San Felipe
- Departamento de Fisiología, Facultad de Medicina, Grupo UCM 951579, Universidad Complutense de Madrid, 28040 Madrid, Spain; (M.A.M.-L.); (B.M.-S.); (D.S.F.)
| | - Elena Salobrar-García
- Instituto de Investigaciones Oftalmológicas Ramón Castroviejo, Grupo UCM 920105, Universidad Complutense de Madrid, 28040 Madrid, Spain; (J.A.F.-A.); (R.d.H.); (E.S.-G.); (I.L.-C.); (J.J.S.); (J.M.R.)
- Departamento de Inmunología, Facultad de Óptica y Optometría, Oftalmología y ORL, IdISSC, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Inés López-Cuenca
- Instituto de Investigaciones Oftalmológicas Ramón Castroviejo, Grupo UCM 920105, Universidad Complutense de Madrid, 28040 Madrid, Spain; (J.A.F.-A.); (R.d.H.); (E.S.-G.); (I.L.-C.); (J.J.S.); (J.M.R.)
| | - María D. Pinazo-Durán
- Ophthalmic Research Unit “Santiago Grisolía”—FISABIO and Cellular and Molecular Ophthalmobiology Unit, University of Valencia, 46017 Valencia, Spain;
| | - Juan J. Salazar
- Instituto de Investigaciones Oftalmológicas Ramón Castroviejo, Grupo UCM 920105, Universidad Complutense de Madrid, 28040 Madrid, Spain; (J.A.F.-A.); (R.d.H.); (E.S.-G.); (I.L.-C.); (J.J.S.); (J.M.R.)
- Departamento de Inmunología, Facultad de Óptica y Optometría, Oftalmología y ORL, IdISSC, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - José M. Ramírez
- Instituto de Investigaciones Oftalmológicas Ramón Castroviejo, Grupo UCM 920105, Universidad Complutense de Madrid, 28040 Madrid, Spain; (J.A.F.-A.); (R.d.H.); (E.S.-G.); (I.L.-C.); (J.J.S.); (J.M.R.)
- Departamento de Inmunología, Facultad de Medicina, Oftalmología y ORL, IdISSC, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Meritxell López-Gallardo
- Departamento de Fisiología, Facultad de Medicina, Grupo UCM 951579, Universidad Complutense de Madrid, 28040 Madrid, Spain; (M.A.M.-L.); (B.M.-S.); (D.S.F.)
- Correspondence: (M.L.-G.); (A.I.R.)
| | - Ana I. Ramírez
- Instituto de Investigaciones Oftalmológicas Ramón Castroviejo, Grupo UCM 920105, Universidad Complutense de Madrid, 28040 Madrid, Spain; (J.A.F.-A.); (R.d.H.); (E.S.-G.); (I.L.-C.); (J.J.S.); (J.M.R.)
- Departamento de Inmunología, Facultad de Óptica y Optometría, Oftalmología y ORL, IdISSC, Universidad Complutense de Madrid, 28040 Madrid, Spain
- Correspondence: (M.L.-G.); (A.I.R.)
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Lee JW, Chun W, Lee HJ, Kim SM, Min JH, Kim DY, Kim MO, Ryu HW, Lee SU. The Role of Microglia in the Development of Neurodegenerative Diseases. Biomedicines 2021; 9:biomedicines9101449. [PMID: 34680566 PMCID: PMC8533549 DOI: 10.3390/biomedicines9101449] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 10/04/2021] [Accepted: 10/08/2021] [Indexed: 01/15/2023] Open
Abstract
Microglia play an important role in the maintenance and neuroprotection of the central nervous system (CNS) by removing pathogens, damaged neurons, and plaques. Recent observations emphasize that the promotion and development of neurodegenerative diseases (NDs) are closely related to microglial activation. In this review, we summarize the contribution of microglial activation and its associated mechanisms in NDs, such as epilepsy, Alzheimer's disease (AD), Parkinson's disease (PD), and Huntington's disease (HD), based on recent observations. This review also briefly introduces experimental animal models of epilepsy, AD, PD, and HD. Thus, this review provides a better understanding of microglial functions in the development of NDs, suggesting that microglial targeting could be an effective therapeutic strategy for these diseases.
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Affiliation(s)
- Jae-Won Lee
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju 28116, Korea; (S.-M.K.); (J.-H.M.); (D.-Y.K.)
- Correspondence: (J.-W.L.); (M.-O.K.); (H.W.R.); (S.U.L.); Tel.: +82-43-240-6135 (J.-W.L.)
| | - Wanjoo Chun
- Department of Pharmacology, College of Medicine, Kangwon National University, Chuncheon 24341, Korea; (W.C.); (H.J.L.)
| | - Hee Jae Lee
- Department of Pharmacology, College of Medicine, Kangwon National University, Chuncheon 24341, Korea; (W.C.); (H.J.L.)
| | - Seong-Man Kim
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju 28116, Korea; (S.-M.K.); (J.-H.M.); (D.-Y.K.)
| | - Jae-Hong Min
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju 28116, Korea; (S.-M.K.); (J.-H.M.); (D.-Y.K.)
| | - Doo-Young Kim
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju 28116, Korea; (S.-M.K.); (J.-H.M.); (D.-Y.K.)
| | - Mun-Ock Kim
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju 28116, Korea; (S.-M.K.); (J.-H.M.); (D.-Y.K.)
- Correspondence: (J.-W.L.); (M.-O.K.); (H.W.R.); (S.U.L.); Tel.: +82-43-240-6135 (J.-W.L.)
| | - Hyung Won Ryu
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju 28116, Korea; (S.-M.K.); (J.-H.M.); (D.-Y.K.)
- Correspondence: (J.-W.L.); (M.-O.K.); (H.W.R.); (S.U.L.); Tel.: +82-43-240-6135 (J.-W.L.)
| | - Su Ui Lee
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju 28116, Korea; (S.-M.K.); (J.-H.M.); (D.-Y.K.)
- Correspondence: (J.-W.L.); (M.-O.K.); (H.W.R.); (S.U.L.); Tel.: +82-43-240-6135 (J.-W.L.)
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Karunia J, Niaz A, Mandwie M, Thomas Broome S, Keay KA, Waschek JA, Al-Badri G, Castorina A. PACAP and VIP Modulate LPS-Induced Microglial Activation and Trigger Distinct Phenotypic Changes in Murine BV2 Microglial Cells. Int J Mol Sci 2021; 22:ijms222010947. [PMID: 34681607 PMCID: PMC8535941 DOI: 10.3390/ijms222010947] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 10/01/2021] [Accepted: 10/04/2021] [Indexed: 01/01/2023] Open
Abstract
Pituitary adenylate cyclase-activating polypeptide (PACAP) and vasoactive intestinal peptide (VIP) are two structurally related immunosuppressive peptides. However, the underlying mechanisms through which these peptides regulate microglial activity are not fully understood. Using lipopolysaccharide (LPS) to induce an inflammatory challenge, we tested whether PACAP or VIP differentially affected microglial activation, morphology and cell migration. We found that both peptides attenuated LPS-induced expression of the microglial activation markers Iba1 and iNOS (### p < 0.001), as well as the pro-inflammatory mediators IL-1β, IL-6, Itgam and CD68 (### p < 0.001). In contrast, treatment with PACAP or VIP exerted distinct effects on microglial morphology and migration. PACAP reversed LPS-induced soma enlargement and increased the percentage of small-sized, rounded cells (54.09% vs. 12.05% in LPS-treated cells), whereas VIP promoted a phenotypic shift towards cell subpopulations with mid-sized, spindle-shaped somata (48.41% vs. 31.36% in LPS-treated cells). Additionally, PACAP was more efficient than VIP in restoring LPS-induced impairment of cell migration and the expression of urokinase plasminogen activator (uPA) in BV2 cells compared with VIP. These results suggest that whilst both PACAP and VIP exert similar immunosuppressive effects in activated BV2 microglia, each peptide triggers distinctive shifts towards phenotypes of differing morphologies and with differing migration capacities.
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Affiliation(s)
- Jocelyn Karunia
- Laboratory of Cellular and Molecular Neuroscience (LCMN), School of Life Sciences, Faculty of Science, University of Technology Sydney, Sydney, NSW 2007, Australia; (J.K.); (A.N.); (M.M.); (S.T.B.); (G.A.-B.)
| | - Aram Niaz
- Laboratory of Cellular and Molecular Neuroscience (LCMN), School of Life Sciences, Faculty of Science, University of Technology Sydney, Sydney, NSW 2007, Australia; (J.K.); (A.N.); (M.M.); (S.T.B.); (G.A.-B.)
| | - Mawj Mandwie
- Laboratory of Cellular and Molecular Neuroscience (LCMN), School of Life Sciences, Faculty of Science, University of Technology Sydney, Sydney, NSW 2007, Australia; (J.K.); (A.N.); (M.M.); (S.T.B.); (G.A.-B.)
| | - Sarah Thomas Broome
- Laboratory of Cellular and Molecular Neuroscience (LCMN), School of Life Sciences, Faculty of Science, University of Technology Sydney, Sydney, NSW 2007, Australia; (J.K.); (A.N.); (M.M.); (S.T.B.); (G.A.-B.)
| | - Kevin A. Keay
- School of Medical Science, [Neuroscience] and Brain and Mind Centre, The University of Sydney, Sydney, NSW 2006, Australia;
| | - James A. Waschek
- Intellectual Development and Disabilities Research Centre, Semel Institute for Neuroscience and Human Behaviour/Neuropsychiatric Institute, David Geffen School of Medicine, University of California-Los Angeles, Los Angeles, CA 90095, USA;
| | - Ghaith Al-Badri
- Laboratory of Cellular and Molecular Neuroscience (LCMN), School of Life Sciences, Faculty of Science, University of Technology Sydney, Sydney, NSW 2007, Australia; (J.K.); (A.N.); (M.M.); (S.T.B.); (G.A.-B.)
| | - Alessandro Castorina
- Laboratory of Cellular and Molecular Neuroscience (LCMN), School of Life Sciences, Faculty of Science, University of Technology Sydney, Sydney, NSW 2007, Australia; (J.K.); (A.N.); (M.M.); (S.T.B.); (G.A.-B.)
- School of Medical Science, [Neuroscience] and Brain and Mind Centre, The University of Sydney, Sydney, NSW 2006, Australia;
- Correspondence:
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Penning DH, Cazacu S, Brodie A, Jevtovic-Todorovic V, Kalkanis SN, Lewis M, Brodie C. Neuron-Glia Crosstalk Plays a Major Role in the Neurotoxic Effects of Ketamine via Extracellular Vesicles. Front Cell Dev Biol 2021; 9:691648. [PMID: 34604212 PMCID: PMC8481868 DOI: 10.3389/fcell.2021.691648] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Accepted: 08/06/2021] [Indexed: 02/02/2023] Open
Abstract
Background: There is a compelling evidence from animal models that early exposure to clinically relevant general anesthetics (GAs) interferes with brain development, resulting in long-lasting cognitive impairments. Human studies have been inconclusive and are challenging due to numerous confounding factors. Here, we employed primary human neural cells to analyze ketamine neurotoxic effects focusing on the role of glial cells and their activation state. We also explored the roles of astrocyte-derived extracellular vesicles (EVs) and different components of the brain-derived neurotrophic factor (BDNF) pathway. Methods: Ketamine effects on cell death were analyzed using live/dead assay, caspase 3 activity and PARP-1 cleavage. Astrocytic and microglial cell differentiation was determined using RT-PCR, ELISA and phagocytosis assay. The impact of the neuron-glial cell interactions in the neurotoxic effects of ketamine was analyzed using transwell cultures. In addition, the role of isolated and secreted EVs in this cross-talk were studied. The expression and function of different components of the BDNF pathway were analyzed using ELISA, RT-PCR and gene silencing. Results: Ketamine induced neuronal and oligodendrocytic cell apoptosis and promoted pro-inflammatory astrocyte (A1) and microglia (M1) phenotypes. Astrocytes and microglia enhanced the neurotoxic effects of ketamine on neuronal cells, whereas neurons increased oligodendrocyte cell death. Ketamine modulated different components in the BDNF pathway: decreasing BDNF secretion in neurons and astrocytes while increasing the expression of p75 in neurons and that of BDNF-AS and pro-BDNF secretion in both neurons and astrocytes. We demonstrated an important role of EVs secreted by ketamine-treated astrocytes in neuronal cell death and a role for EV-associated BDNF-AS in this effect. Conclusions: Ketamine exerted a neurotoxic effect on neural cells by impacting both neuronal and non-neuronal cells. The BDNF pathway and astrocyte-derived EVs represent important mediators of ketamine effects. These results contribute to a better understanding of ketamine neurotoxic effects in humans and to the development of potential approaches to decrease its neurodevelopmental impact.
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Affiliation(s)
- Donald H Penning
- Department of Anesthesiology, Pain Management and Perioperative Medicine, Henry Ford Hospital, Detroit, MI, United States.,Department of Neurosurgery, Henry Ford Health System, Detroit, MI, United States
| | - Simona Cazacu
- Department of Anesthesiology, Pain Management and Perioperative Medicine, Henry Ford Hospital, Detroit, MI, United States.,Department of Neurosurgery, Henry Ford Health System, Detroit, MI, United States
| | | | - Vesna Jevtovic-Todorovic
- Department of Anesthesiology, University of Colorado School of Medicine, Aurora, CO, United States
| | - Steve N Kalkanis
- Department of Neurosurgery, Henry Ford Health System, Detroit, MI, United States
| | - Michael Lewis
- Department of Anesthesiology, Pain Management and Perioperative Medicine, Henry Ford Hospital, Detroit, MI, United States
| | - Chaya Brodie
- Department of Neurosurgery, Henry Ford Health System, Detroit, MI, United States.,Faculty of Life Sciences, Bar-Ilan University, Ramat Gan, Israel
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Zhou S, Cisse B. Regulation of Microglia for the Treatment of Glioma. World Neurosurg 2021; 154:222-227. [PMID: 34583499 DOI: 10.1016/j.wneu.2021.06.107] [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: 06/22/2021] [Accepted: 06/24/2021] [Indexed: 10/20/2022]
Abstract
Microglia are the resident macrophages of the central nervous system (CNS). They are derived from the erythromyeloid progenitors in the embryonic yolk sac, and they are maintained postnatally by limited self-renewal and longevity. As the most abundant immune cells in the CNS, they play critical roles in homeostasis and various CNS pathologies, including tumor, stroke, and neurodegenerative disease. For instance, in gliomas, up to more than 30% of cells in the tumor microenvironment can be microglia and tumor-associated macrophages. These cells are typically coopted by tumor cells to create a pro-tumorigenic microenvironment. The transcriptional regulation of the development and function of microglia in health and disease is not well understood. Transcription factors are master regulators of cell fates and functions and activate target genes that execute a genetic program typically initiated by external stimuli. Several transcription factors, not necessarily specific to microglia, have been shown to play roles in the development, function, and activation state of microglia. In this review, we summarize our current understanding of the roles of transcription factors in the functions of microglia in normal CNS homeostasis and in gliomas. A thorough understanding of the transcription factors and their target genes that mediate and regulate the functions of microglia in gliomas may help identify new targets for immune therapies. These stroma-directed therapies may be combined with tumor cell-directed therapies for more effective treatment of these diseases.
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Affiliation(s)
- Sichang Zhou
- Department of Neurosurgery, NewYork-Presbyterian/Weill Cornell Medicine, New York, New York, USA
| | - Babacar Cisse
- Department of Neurosurgery, NewYork-Presbyterian/Weill Cornell Medicine, New York, New York, USA.
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47
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Dhote VV, Raja MKMM, Samundre P, Sharma S, Anwikar S, Upaganlawar AB. Sports Related Brain Injury and Neurodegeneration in Athletes. Curr Mol Pharmacol 2021; 15:51-76. [PMID: 34515018 DOI: 10.2174/1874467214666210910114324] [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: 11/20/2020] [Revised: 03/03/2021] [Accepted: 06/03/2021] [Indexed: 11/22/2022]
Abstract
Sports deserve a special place in human life to impart healthy and refreshing wellbeing. However, sports activities, especially contact sports, renders athlete vulnerable to brain injuries. Athletes participating in a contact sport like boxing, rugby, American football, wrestling, and basketball are exposed to traumatic brain injuries (TBI) or concussions. The acute and chronic nature of these heterogeneous injuries provides a spectrum of dysfunctions that alters the neuronal, musculoskeletal, and behavioral responses of an athlete. Many sports-related brain injuries go unreported, but these head impacts trigger neurometabolic disruptions that contribute to long-term neuronal impairment. The pathophysiology of post-concussion and its underlying mechanisms are undergoing intense research. It also shed light on chronic disorders like Parkinson's disease, Alzheimer's disease, and dementia. In this review, we examined post-concussion neurobehavioral changes, tools for early detection of signs, and their impact on the athlete. Further, we discussed the role of nutritional supplements in ameliorating neuropsychiatric diseases in athletes.
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Affiliation(s)
- Vipin V Dhote
- Faculty of Pharmacy, VNS Group of Institutions, Bhopal, MP,462044. India
| | | | - Prem Samundre
- Faculty of Pharmacy, VNS Group of Institutions, Bhopal, MP,462044. India
| | - Supriya Sharma
- Faculty of Pharmacy, VNS Group of Institutions, Bhopal, MP,462044. India
| | - Shraddha Anwikar
- Faculty of Pharmacy, VNS Group of Institutions, Bhopal, MP,462044. India
| | - Aman B Upaganlawar
- Faculty of Pharmacy, VNS Group of Institutions, Bhopal, MP,462044. India
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Platinum nanoparticles Protect Against Lipopolysaccharide-Induced Inflammation in Microglial BV-2 Cells via Decreased Oxidative Damage and Increased Phagocytosis. Neurochem Res 2021; 46:3325-3341. [PMID: 34432181 DOI: 10.1007/s11064-021-03434-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 08/14/2021] [Accepted: 08/18/2021] [Indexed: 10/20/2022]
Abstract
Neuroinflammation and oxidative stress cooperate to compromise the function of the central nervous system (CNS). Colloidal platinum nanoparticles (Pt NPs) are ideal candidates for reducing the deleterious effects of neuroinflammation since they act as free radical scavengers. Here we evaluated the effects of Pt NPs on several markers of lipopolysaccharide (LPS)-induced inflammation in cultured BV-2 microglial cells. BV-2 cells were treated with increased dilutions (1-100 ppm) of Colloidal Pt and/or LPS (1-10 µg/mL) at different exposure times. Three different protocols of exposure were used combining Pt NPs and LPS: (a) conditioning-protective effect (pre-post-treat), (b) therapeutic effect (co-treat) and (c) conditioning-therapeutic effect (pre-co-treat). After exposure to LPS for 24 h, cells were used for assessment of cell viability, reactive oxygen species (ROS) generation, lactate dehydrogenase (LDH) activity, apoptosis and caspase-3 levels, cell proliferation, mitochondrial membrane potential, inducible nitric oxide (iNOS) activity, pro-inflammatory cytokine (IL-1β, TNF-α and IL-6) levels, and phagocytic activity. Low concentrations (below or equal to 10 ppm) of Colloidal Pt prevented or ameliorated the LPS-induced increase in ROS formation, loss of mitochondrial membrane potential, induction of apoptosis, increase in LDH release, increase in pro-inflammatory cytokines and iNOS, inhibition of phagocytosis linked to microglial persistence in the M1 phase phenotype, loss of cell adhesion, differentiation and/or proliferation, as well as loss of cell viability. These protective effects were evident when cells were preconditioned with Pt NPs prior to LPS treatment. Collectively, the findings demonstrate that at low concentrations, Pt NPs can regulate the function and phenotype of BV-2 cells, activating protective mechanisms to maintain the microglial homeostasis and reduce inflammatory events triggered by the inflammatory insults induced by LPS. These preventive/protective effects on the LPS pro-inflammatory model are linked to the antioxidant properties and phagocytic activity of these NPs.
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49
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Early-Released Interleukin-10 Significantly Inhibits Lipopolysaccharide-Elicited Neuroinflammation In Vitro. Cells 2021; 10:cells10092173. [PMID: 34571824 PMCID: PMC8466025 DOI: 10.3390/cells10092173] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 08/06/2021] [Accepted: 08/17/2021] [Indexed: 12/31/2022] Open
Abstract
Anti-inflammatory cytokine interleukin (IL)-10 is pivotal for limiting excessive inflammation in the central nervous system. Reports show that lipopolysaccharide (LPS)-induced microglial IL-10 emerges in a delayed manner in vitro and in vivo, lagging behind proinflammatory cytokines to facilitate the resolution of neuroinflammation. We hypothesized that IL-10 releases quite quickly based on our pilot investigation. Here, we uncovered a bimodal expression of microglial IL-10 gene transcription induced by LPS in mouse primary mixed glial cultures. This pattern consisted of a short brief early-phase and a long-lived late-phase, enabling the production of IL-10 protein in a rapid manner. The removal and addition of IL-10 protein assays indicated that early-released IL-10 exerted potent modulatory effects on neuroinflammation at picomolar levels, and IL-10 released at the onset of neuroinflammation is tightly controlled. We further showed that the early-released, but not the late-released, IL-10 was crucial for mediating and potentiating the anti-inflammatory function of a β2-adrenergic receptor agonist salmeterol. This study in vitro highlights the essential role of early-released IL-10 in regulating the appropriate degree of neuroinflammation, overturning the previous notion that microglial IL-10 produces and functions in a delayed manner and providing new insights into anti-inflammatory mechanisms-mediated neuroimmune homeostasis.
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Selvaraj UM, Ujas TA, Kong X, Kumar A, Plautz EJ, Zhang S, Xing C, Sudduth TL, Wilcock DM, Turchan-Cholewo J, Goldberg MP, Stowe AM. Delayed diapedesis of CD8 T cells contributes to long-term pathology after ischemic stroke in male mice. Brain Behav Immun 2021; 95:502-513. [PMID: 33964435 PMCID: PMC8221572 DOI: 10.1016/j.bbi.2021.05.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 04/14/2021] [Accepted: 05/03/2021] [Indexed: 12/11/2022] Open
Abstract
OBJECTIVE Stroke is a debilitating disorder with significant annual mortality and morbidity rates worldwide. Immune cells are recruited to the injured brain within hours after stroke onset and can exhibit either protective or detrimental effects on recovery. However, immune cells, including CD8 T cells, persist in the injured brain for weeks, suggesting a longer-term role for the adaptive immune system during functional recovery. The aim of this study was to determine if the delayed secondary diapedesis of CD8 T cells into the ischemic brain negatively impacts functional recovery after transient ischemic stroke in male mice. RESULTS Mice exhibited an increased number of leukocytes in the ipsilesional hemispheres at 14 days (3-fold; p < 0.001) and 30 days (2.2-fold; p = 0.02) after transient middle cerebral artery occlusion (tMCAo) compared to 8 days post-tMCAo, at which time acute neuroinflammation predominantly resolves. Moreover, mice with higher ipsilesional CD8 T cells at 30 days (R2 = 0.52, p < 0.01) exhibited worse functional recovery. To confirm a detrimental role of chronic CD8 T cell diapedesis on recovery, peripheral CD8 T cells were depleted beginning 10 days post-tMCAo. Delayed CD8 T cell depletion improved motor recovery on the rotarod (F(1,28) = 4.264; p = 0.048) compared to isotype control-treated mice. CD8 T cell-depleted mice also exhibited 2-fold (p < 0.001) reduced leukocyte infiltration at 30 days post-tMCAo. Specifically, macrophage, neutrophil, and CD4 T cell numbers were reduced in the ipsilesional hemisphere of the CD8 T cell-depleted mice independent of inflammatory status of the post-stroke CNS (e.g. microglial phenotype and cytokine production). RNAseq identified a unique profile for brain infiltrating CD8 T cells at 30 days post-tMCAo, with 46 genes differentially expressed relative to CD8 T cells at 3 days post-tMCAo. CONCLUSION Our data reveal a role for CD8 T cells in the chronic phase post-stroke that can be therapeutically targeted. We demonstrate long-term CD8 T cell recruitment into the ipsilesional hemisphere that affects both immune cell numbers present in the injured brain and functional recovery through one month after stroke onset.
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Affiliation(s)
- Uma Maheswari Selvaraj
- Department of Neurology & Neurotherapeutics, University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Thomas A Ujas
- Department of Neurology, Center for Advanced Translational Stroke Science, University of Kentucky, Lexington, KY, United States
| | - Xiangmei Kong
- Department of Neurology & Neurotherapeutics, University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Ashwani Kumar
- Eugene McDermott Center for Human Growth and Development, University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Erik J Plautz
- Department of Neurology & Neurotherapeutics, University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Shanrong Zhang
- Advanced Imaging Research Center, University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Chao Xing
- Eugene McDermott Center for Human Growth and Development, University of Texas Southwestern Medical Center, Dallas, TX, United States; Department of Bioinformatics, University of Texas Southwestern Medical Center, Dallas, TX, United States; Department of Population and Data Sciences, University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Tiffany L Sudduth
- Department of Physiology, Sanders-Brown Center on Aging, University of Kentucky, Lexington, KY, United States
| | - Donna M Wilcock
- Department of Physiology, Sanders-Brown Center on Aging, University of Kentucky, Lexington, KY, United States
| | - Jadwiga Turchan-Cholewo
- Department of Neurology, Center for Advanced Translational Stroke Science, University of Kentucky, Lexington, KY, United States
| | - Mark P Goldberg
- Department of Neurology & Neurotherapeutics, University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Ann M Stowe
- Department of Neurology & Neurotherapeutics, University of Texas Southwestern Medical Center, Dallas, TX, United States; Department of Neurology, Center for Advanced Translational Stroke Science, University of Kentucky, Lexington, KY, United States.
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