1
|
Ochoa-Amaya JE, Paula LDOA, Luciano FF, Bernardi MM. Repeated saline injections reduce the pulmonary allergic inflammatory response in rats by inducing short-term stress. Brain Behav Immun Health 2024; 40:100822. [PMID: 39144834 PMCID: PMC11320420 DOI: 10.1016/j.bbih.2024.100822] [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: 02/28/2024] [Revised: 06/28/2024] [Accepted: 07/15/2024] [Indexed: 08/16/2024] Open
Abstract
Purpose Asthma is characterized by pulmonary cell infiltration and hyper-responsiveness of the airways. Short-term stress reduces airway inflammation. Thus, in the present study, we examined the effects of short-term stress induced by repeated treatment with saline injections on the pulmonary allergic inflammatory response in rats. Methods Adult male rats were divided into three groups: Naïve group (non-sensitized, challenged, or treated rats), Control group (rats sensitized with ovalbumin (OVA) to induce lung inflammation), and Saline group (rats treated for five days with saline before OVA sensitization). Inhalation challenges were performed one week after the booster with aerosolized OVA. On day 18, the effect of saline injections on total and differential leukocytes in bronchoalveolar lavage (BAL), femoral marrow lavage (FML), and blood was evaluated. The percentage of mucus, serum corticosterone, collagen, cytokines in lung explants, and norepinephrine levels were also measured. Results OVA sensitization increased the circulating leukocytes and their migration to the lung, decreasing the bone marrow leukocytes. The repeated saline injections prevented this migration by decreasing the number of leukocytes in BAL and blood in the control group. Cytokine Interleukin-4 (IL-4) was higher in the control group than in the naive and saline groups; cytokines Interleukin-6 (IL-6), Interleukin-10 (IL-10), and tumor necrosis factor-alpha (TNFα) were higher in the control and saline groups than in the naïve group; Interferon gamma (IFNγ) was higher in the saline group than in the naive and control groups; norepinephrine increased in animals sensitized with OVA and was higher only in the saline group relative to the naïve group. Conclusions These results suggest that short-term stress could contribute to the anti-allergic airway inflammation effects of a given treatment.
Collapse
Affiliation(s)
- Julieta Esperanza Ochoa-Amaya
- University of the Llanos, Faculty of Agricultural Sciences and Natural Resources, School of Animal Sciences, Colombia
- Department of Pathology, School of Veterinary Medicine, University of São Paulo, São Paulo, Brazil
| | - Ligeiro de Oliveira Ana Paula
- Post-Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), São Paulo, Brazil
| | - Freitas Felicio Luciano
- Department of Pathology, School of Veterinary Medicine, University of São Paulo, São Paulo, Brazil
| | - Maria Martha Bernardi
- Psychoneuroimmunology Laboratory, Program in Environmental and Experimental Pathology, Paulista University, Rua Dr. Bacelar 1212, 04026-002, São Paulo, SP, Brazil
| |
Collapse
|
2
|
Lin HB, Hong P, Yin MY, Yao ZJ, Zhang JY, Jiang YP, Huang XX, Xu SY, Li FX, Zhang HF. Monocyte-Derived Macrophages Aggravate Cardiac Dysfunction After Ischemic Stroke in Mice. J Am Heart Assoc 2024; 13:e034731. [PMID: 38700011 PMCID: PMC11179859 DOI: 10.1161/jaha.123.034731] [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: 02/01/2024] [Accepted: 03/25/2024] [Indexed: 05/05/2024]
Abstract
BACKGROUND Cardiac damage induced by ischemic stroke, such as arrhythmia, cardiac dysfunction, and even cardiac arrest, is referred to as cerebral-cardiac syndrome (CCS). Cardiac macrophages are reported to be closely associated with stroke-induced cardiac damage. However, the role of macrophage subsets in CCS is still unclear due to their heterogeneity. Sympathetic nerves play a significant role in regulating macrophages in cardiovascular disease. However, the role of macrophage subsets and sympathetic nerves in CCS is still unclear. METHODS AND RESULTS In this study, a middle cerebral artery occlusion mouse model was used to simulate ischemic stroke. ECG and echocardiography were used to assess cardiac function. We used Cx3cr1GFPCcr2RFP mice and NLRP3-deficient mice in combination with Smart-seq2 RNA sequencing to confirm the role of macrophage subsets in CCS. We demonstrated that ischemic stroke-induced cardiac damage is characterized by severe cardiac dysfunction and robust infiltration of monocyte-derived macrophages into the heart. Subsequently, we identified that cardiac monocyte-derived macrophages displayed a proinflammatory profile. We also observed that cardiac dysfunction was rescued in ischemic stroke mice by blocking macrophage infiltration using a CCR2 antagonist and NLRP3-deficient mice. In addition, a cardiac sympathetic nerve retrograde tracer and a sympathectomy method were used to explore the relationship between sympathetic nerves and cardiac macrophages. We found that cardiac sympathetic nerves are significantly activated after ischemic stroke, which contributes to the infiltration of monocyte-derived macrophages and subsequent cardiac dysfunction. CONCLUSIONS Our findings suggest a potential pathogenesis of CCS involving the cardiac sympathetic nerve-monocyte-derived macrophage axis.
Collapse
MESH Headings
- Animals
- Macrophages/metabolism
- Disease Models, Animal
- NLR Family, Pyrin Domain-Containing 3 Protein/metabolism
- NLR Family, Pyrin Domain-Containing 3 Protein/genetics
- NLR Family, Pyrin Domain-Containing 3 Protein/deficiency
- Ischemic Stroke/physiopathology
- Ischemic Stroke/metabolism
- Ischemic Stroke/pathology
- Mice, Inbred C57BL
- Receptors, CCR2/genetics
- Receptors, CCR2/metabolism
- Male
- Mice, Knockout
- Mice
- Infarction, Middle Cerebral Artery/physiopathology
- Infarction, Middle Cerebral Artery/pathology
- Sympathetic Nervous System/physiopathology
- Myocardium/pathology
- Myocardium/metabolism
- Heart Diseases/etiology
- Heart Diseases/physiopathology
- Heart Diseases/pathology
- CX3C Chemokine Receptor 1/genetics
- CX3C Chemokine Receptor 1/metabolism
- CX3C Chemokine Receptor 1/deficiency
Collapse
Affiliation(s)
- Hong-Bin Lin
- Department of Anesthesiology, Zhujiang Hospital Southern Medical University Guangzhou Guangdong China
| | - Pu Hong
- Department of Anesthesiology, Zhujiang Hospital Southern Medical University Guangzhou Guangdong China
| | - Meng-Yu Yin
- Department of Anesthesiology, Zhujiang Hospital Southern Medical University Guangzhou Guangdong China
| | - Zhi-Jun Yao
- Department of Anesthesiology, Zhujiang Hospital Southern Medical University Guangzhou Guangdong China
| | - Jin-Yu Zhang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science Guangzhou Guangdong China
| | - Yan-Pin Jiang
- Department of Anesthesiology, Zhujiang Hospital Southern Medical University Guangzhou Guangdong China
| | - Xuan-Xuan Huang
- Department of Anesthesiology, Zhujiang Hospital Southern Medical University Guangzhou Guangdong China
| | - Shi-Yuan Xu
- Department of Anesthesiology, Zhujiang Hospital Southern Medical University Guangzhou Guangdong China
| | - Feng-Xian Li
- Department of Anesthesiology, Zhujiang Hospital Southern Medical University Guangzhou Guangdong China
| | - Hong-Fei Zhang
- Department of Anesthesiology, Zhujiang Hospital Southern Medical University Guangzhou Guangdong China
| |
Collapse
|
3
|
Genicular nerve block in rheumatoid arthritis: a randomized clinical trial. Clin Rheumatol 2021; 40:4501-4509. [PMID: 34213672 DOI: 10.1007/s10067-021-05821-5] [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: 04/15/2021] [Revised: 06/04/2021] [Accepted: 06/13/2021] [Indexed: 10/21/2022]
Abstract
OBJECTIVE This study highlights the effect of a genicular nerve block (GNB) on pain, function, and inflammation outcome measures in rheumatoid arthritis (RA) knees. METHODS A total of sixty-four patients diagnosed with RA using ACR/EULAR 2010 criteria with unilateral persistent knee arthritis were recruited to the study. They were randomly assigned into two groups: group 1 received GNB and group 2 received intra-articular triamcinolone. Both groups were examined by the SOLAR scoring system, visual analog scale (VAS), and Lysholm score at 0, 2, and 12 weeks. A semi-quantitative score was used to assess the tenderness and swelling at the same intervals. RESULTS Function and inflammation improved significantly in group 2 at a 2-week interval as compared to group 1, whereas pain improved in both groups with non-significant differences. After 12 weeks, group 1 showed significant improvement as compared with group 2 for the three outcome measures. Neither the disease activity nor the current medication was related to the GNB effect. Disease duration was negatively related to GNB-induced improvement. CONCLUSION GNB is a new promising local therapy for RA to control pain, improve function, and alleviate inflammation of the knee joint. Although it has a relatively short-term effect, yet it has outperformed the steroid effect. Key Points • Knee monoarthritis treatment in rheumatoid arthritis is always challenging • GNB has been approved for the treatment of pain in knee osteoarthritis • GNB in this study was able to control active knee arthritis and this effect persisted longer thane intra-articular steroid injection.
Collapse
|
4
|
Elsaman AM, Hamed A, Radwan AR. Ultrasound-guided epidural block in axial spondyloarthritis patients with limited spine mobility: a randomized controlled trial. Korean J Pain 2021; 34:114-123. [PMID: 33380574 PMCID: PMC7783858 DOI: 10.3344/kjp.2021.34.1.114] [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: 09/11/2020] [Revised: 12/04/2020] [Accepted: 12/04/2020] [Indexed: 01/17/2023] Open
Abstract
BACKGROUND Evaluation of the effectiveness of caudal epidural injection on pain, spine mobility, disease activity, and activity of daily living in axial spondyloarthritis (SpA) patients. METHODS A total sample of 47 patients were registered in this study. They were randomly assigned into 2 groups; Group I received caudal epidural injections, ultrasound-guided, with 1% lidocaine hydrochloride mixed with triamcinolone, whereas Group II did not receive any injections. All participants fulfilled the ASAS criteria for axial SpA. Outcome measures were as follows: visual analogue scale, Oswestry disability index (ODI), modified Schober test, lateral lumbar flexion, and Ankylosing Spondylitis Disease Activity Score (ASDAS) with assessment at baseline, 2 weeks, and 8 weeks post-treatment. This clinical trial was registered on clinicaltrials.gov under the number NCT04143165. RESULTS There was a significant difference between both groups regarding pain, ODI, spine mobility and ASDAS scores in favor of group I. This effect was at its maximum after 2 weeks. Despite the decline of this effect after 2 months, the difference between the groups remained significant. Higher disease activity, younger age, and shorter disease duration were associated with better outcomes. CONCLUSIONS Epidural injection of lidocaine and triamcinolone is a cost effective and a practical technique for controlling pain, as well as improving the function of the spine and disease activity scores in axial SpA patients with acceptable complications and relatively sustained effect.
Collapse
Affiliation(s)
- AM Elsaman
- Department of Rheumatology and Rehabilitation, Sohag University Hospital, Sohag, Egypt
| | - A Hamed
- Department of Rheumatology and Rehabilitation, Minia University Hospital, Elminia, Egypt
| | - AR Radwan
- Department of Rheumatology and Rehabilitation, Sohag University Hospital, Sohag, Egypt
| |
Collapse
|
5
|
Das B, Kar A, Matsabisa MG, Mukherjee PK. Anti-Cholinesterase Potential of Standardized Extract of PHELA a Traditional South African Medicine Formulation. J Herb Med 2020. [DOI: 10.1016/j.hermed.2020.100348] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
6
|
Jurberg AD, Cotta-de-Almeida V, Temerozo JR, Savino W, Bou-Habib DC, Riederer I. Neuroendocrine Control of Macrophage Development and Function. Front Immunol 2018; 9:1440. [PMID: 29988513 PMCID: PMC6026652 DOI: 10.3389/fimmu.2018.01440] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Accepted: 06/11/2018] [Indexed: 12/25/2022] Open
Abstract
Macrophages carry out numerous physiological activities that are essential for both systemic and local homeostasis, as well as innate and adaptive immune responses. Their biology is intricately regulated by hormones, neuropeptides, and neurotransmitters, establishing distinct neuroendocrine axes. The control is pleiotropic, including maturation of bone marrow-derived myeloid precursors, cell differentiation into functional subpopulations, cytotoxic activity, phagocytosis, production of inflammatory mediators, antigen presentation, and activation of effector lymphocytes. Additionally, neuroendocrine components modulate macrophage ability to influence tumor growth and to prevent the spreading of infective agents. Interestingly, macrophage-derived factors enhance glucocorticoid production through the stimulation of the hypothalamic–pituitary–adrenal axis. These bidirectional effects highlight a tightly controlled balance between neuroendocrine stimuli and macrophage function in the development of innate and adaptive immune responses. Herein, we discuss how components of neuroendocrine axes impact on macrophage development and function and may ultimately influence inflammation, tissue repair, infection, or cancer progression. The knowledge of the crosstalk between macrophages and endocrine or brain-derived components may contribute to improve and create new approaches with clinical relevance in homeostatic or pathological conditions.
Collapse
Affiliation(s)
- Arnon Dias Jurberg
- Laboratory on Thymus Research, Oswaldo Cruz Institute/Oswaldo Cruz Foundation, Rio de Janeiro, Brazil.,Brazilian National Institute of Science and Technology on Neuroimmunomodulation (INCT-NIM), Rio de Janeiro, Brazil
| | - Vinícius Cotta-de-Almeida
- Laboratory on Thymus Research, Oswaldo Cruz Institute/Oswaldo Cruz Foundation, Rio de Janeiro, Brazil.,Brazilian National Institute of Science and Technology on Neuroimmunomodulation (INCT-NIM), Rio de Janeiro, Brazil
| | - Jairo Ramos Temerozo
- Laboratory on Thymus Research, Oswaldo Cruz Institute/Oswaldo Cruz Foundation, Rio de Janeiro, Brazil.,Brazilian National Institute of Science and Technology on Neuroimmunomodulation (INCT-NIM), Rio de Janeiro, Brazil
| | - Wilson Savino
- Laboratory on Thymus Research, Oswaldo Cruz Institute/Oswaldo Cruz Foundation, Rio de Janeiro, Brazil.,Brazilian National Institute of Science and Technology on Neuroimmunomodulation (INCT-NIM), Rio de Janeiro, Brazil
| | - Dumith Chequer Bou-Habib
- Laboratory on Thymus Research, Oswaldo Cruz Institute/Oswaldo Cruz Foundation, Rio de Janeiro, Brazil.,Brazilian National Institute of Science and Technology on Neuroimmunomodulation (INCT-NIM), Rio de Janeiro, Brazil
| | - Ingo Riederer
- Laboratory on Thymus Research, Oswaldo Cruz Institute/Oswaldo Cruz Foundation, Rio de Janeiro, Brazil.,Brazilian National Institute of Science and Technology on Neuroimmunomodulation (INCT-NIM), Rio de Janeiro, Brazil
| |
Collapse
|
7
|
Bagyinszky E, Giau VV, Shim K, Suk K, An SSA, Kim S. Role of inflammatory molecules in the Alzheimer's disease progression and diagnosis. J Neurol Sci 2017; 376:242-254. [PMID: 28431620 DOI: 10.1016/j.jns.2017.03.031] [Citation(s) in RCA: 160] [Impact Index Per Article: 22.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Revised: 03/14/2017] [Accepted: 03/20/2017] [Indexed: 12/18/2022]
Abstract
Alzheimer's disease (AD) is a complex disorder and the most common form of neurodegenerative dementia. Several genetic, environmental, and physiological factors, including inflammations and metabolic influences, are involved in the progression of AD. Inflammations are composed of complicated networks of many chemokines and cytokines with diverse cells. Inflammatory molecules are needed for the protection against pathogens, and maintaining their balances is important for normal physiological function. Recent studies demonstrated that inflammation may be involved in neurodegenerative dementia. Cellular immune components, such as microglia or astrocytes, mediate the release of inflammatory molecules, including tumor necrosis factor, growth factors, adhesion molecules, or chemokines. Over- and underexpression of pro- and anti-inflammatory molecules, respectively, may result in neuroinflammation and thus disease initiation and progression. In addition, levels of several inflammatory factors were reported to be altered in the brain or bodily fluids of patients with AD, reflecting their neuropathological changes. Therefore, simultaneous detection of several inflammatory molecules in the early or pre-symptomatic stage may improve the early diagnosis of AD. Further studies are needed to determine, how induction or inhibition of inflammatory factors could be used for AD therapies. This review summarizes the role or possible role of immune cells and inflammatory molecules in disease progression or prevention.
Collapse
Affiliation(s)
- Eva Bagyinszky
- Department of Bionano Technology, Gachon University, Gyeonggi-do, Republic of Korea
| | - Vo Van Giau
- Department of Bionano Technology, Gachon University, Gyeonggi-do, Republic of Korea
| | - Kyuhwan Shim
- Department of Bionano Technology, Gachon University, Gyeonggi-do, Republic of Korea
| | - Kyoungho Suk
- Department of Pharmacology, Brain Science and Engineering Institute, Kyungpook National University School of Medicine, Daegu, Republic of Korea
| | - Seong Soo A An
- Department of Bionano Technology, Gachon University, Gyeonggi-do, Republic of Korea.
| | - SangYun Kim
- Department of Neurology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Gyeonggi-do, Republic of Korea
| |
Collapse
|
8
|
Houlden A, Goldrick M, Brough D, Vizi E, Lénárt N, Martinecz B, Roberts I, Denes A. Brain injury induces specific changes in the caecal microbiota of mice via altered autonomic activity and mucoprotein production. Brain Behav Immun 2016; 57:10-20. [PMID: 27060191 PMCID: PMC5021180 DOI: 10.1016/j.bbi.2016.04.003] [Citation(s) in RCA: 237] [Impact Index Per Article: 29.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Revised: 03/09/2016] [Accepted: 04/05/2016] [Indexed: 12/28/2022] Open
Abstract
Intestinal microbiota are critical for health with changes associated with diverse human diseases. Research suggests that altered intestinal microbiota can profoundly affect brain function. However, whether altering brain function directly affects the microbiota is unknown. Since it is currently unclear how brain injury induces clinical complications such as infections or paralytic ileus, key contributors to prolonged hospitalization and death post-stroke, we tested in mice the hypothesis that brain damage induced changes in the intestinal microbiota. Experimental stroke altered the composition of caecal microbiota, with specific changes in Peptococcaceae and Prevotellaceae correlating with the extent of injury. These effects are mediated by noradrenaline release from the autonomic nervous system with altered caecal mucoprotein production and goblet cell numbers. Traumatic brain injury also caused changes in the gut microbiota, confirming brain injury effects gut microbiota. Changes in intestinal microbiota after brain injury may affect recovery and treatment of patients should appreciate such changes.
Collapse
Affiliation(s)
- A. Houlden
- Faculty of Life Sciences, University of Manchester, Manchester, UK
| | - M. Goldrick
- Faculty of Life Sciences, University of Manchester, Manchester, UK
| | - D. Brough
- Faculty of Life Sciences, University of Manchester, Manchester, UK
| | - E.S. Vizi
- Laboratory of Drug Research, Institute of Experimental Medicine, Hungarian Academy of Sciences, P.O.B. 67, H-1450 Budapest, Hungary,Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary
| | - N. Lénárt
- Laboratory of Neuroimmunology, Institute of Experimental Medicine, Budapest, Hungary
| | - B. Martinecz
- Laboratory of Neuroimmunology, Institute of Experimental Medicine, Budapest, Hungary
| | - I.S. Roberts
- Faculty of Life Sciences, University of Manchester, Manchester, UK,Corresponding authors at: Faculty of Life Sciences, University of Manchester, Manchester, UK (I.S. Roberts); Laboratory of Neuroimmunology, Institute of Experimental Medicine, Budapest, Hungary (A. Denes).Faculty of Life SciencesUniversity of ManchesterManchesterUK
| | - A. Denes
- Faculty of Life Sciences, University of Manchester, Manchester, UK,Laboratory of Neuroimmunology, Institute of Experimental Medicine, Budapest, Hungary,Corresponding authors at: Faculty of Life Sciences, University of Manchester, Manchester, UK (I.S. Roberts); Laboratory of Neuroimmunology, Institute of Experimental Medicine, Budapest, Hungary (A. Denes).Faculty of Life SciencesUniversity of ManchesterManchesterUK
| |
Collapse
|
9
|
Li M, Wang L, Qiu L, Wang W, Xin L, Xu J, Wang H, Song L. A glutamic acid decarboxylase (CgGAD) highly expressed in hemocytes of Pacific oyster Crassostrea gigas. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2016; 63:56-65. [PMID: 27208883 DOI: 10.1016/j.dci.2016.05.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Revised: 05/11/2016] [Accepted: 05/16/2016] [Indexed: 06/05/2023]
Abstract
Glutamic acid decarboxylase (GAD), a rate-limiting enzyme to catalyze the reaction converting the excitatory neurotransmitter glutamate to inhibitory neurotransmitter γ-aminobutyric acid (GABA), not only functions in nervous system, but also plays important roles in immunomodulation in vertebrates. However, GAD has rarely been reported in invertebrates, and never in molluscs. In the present study, one GAD homologue (designed as CgGAD) was identified from Pacific oyster Crassostrea gigas. The full length cDNA of CgGAD was 1689 bp encoding a polypeptide of 562 amino acids containing a conserved pyridoxal-dependent decarboxylase domain. CgGAD mRNA and protein could be detected in ganglion and hemocytes of oysters, and their abundance in hemocytes was unexpectedly much higher than those in ganglion. More importantly, CgGAD was mostly located in those granulocytes without phagocytic capacity in oysters, and could dynamically respond to LPS stimulation. Further, after being transfected into HEK293 cells, CgGAD could promote the production of GABA. Collectively, these findings suggested that CgGAD, as a GABA synthase and molecular marker of GABAergic system, was mainly distributed in hemocytes and ganglion and involved in neuroendocrine-immune regulation network in oysters, which also provided a novel insight to the co-evolution between nervous system and immune system.
Collapse
Affiliation(s)
- Meijia Li
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lingling Wang
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture, Dalian Ocean University, Dalian 116023, China.
| | - Limei Qiu
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
| | - Weilin Wang
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lusheng Xin
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jiachao Xu
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hao Wang
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
| | - Linsheng Song
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture, Dalian Ocean University, Dalian 116023, China
| |
Collapse
|
10
|
Li M, Qiu L, Wang L, Wang W, Xin L, Li Y, Liu Z, Song L. The inhibitory role of γ-aminobutyric acid (GABA) on immunomodulation of Pacific oyster Crassostrea gigas. FISH & SHELLFISH IMMUNOLOGY 2016; 52:16-22. [PMID: 26975413 DOI: 10.1016/j.fsi.2016.03.015] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Revised: 03/03/2016] [Accepted: 03/10/2016] [Indexed: 05/15/2023]
Abstract
γ-aminobutyric acid (GABA) is an inhibitory neurotransmitter to suppress the immune-mediated pro-inflammatory reactions, and it has been used in the treatment of many inflammation-related diseases in vertebrates, while its immunomodulatory role in invertebrates has never been reported. In the present study, GABA was found to exist in the hemolymph of Pacific oyster Crassostrea gigas, and its concentration decreased slightly from 8.00 ± 0.37 μmol L(-1) at normal condition to 7.73 ± 0.15 μmol L(-1) at 6 h after LPS stimulation, and then increased to 9.34 ± 0.15 μmol L(-1), 8.86 ± 0.68 μmol L(-1) at 12 h and 48 h, respectively. After LPS stimulation, the mRNA expressions of pro-inflammatory cytokines (CgIL-17 and CgTNF) and immune effectors (CgSOD and CgBPI), and the protein expression of NOS increased significantly, and these increased trends were remarkably inhibited by GABA stimulation. At the same time, the phagocytosis rate and apoptosis rate of immunocytes also increased obviously after LPS stimulation, whereas the increase was repressed with the addition of GABA. The results collectively demonstrated that GABA was an indispensable inhibitory agent for both humoral and cellular immune response, which mainly functioned at the late phase of immune response to avoid the excess immune reactions and maintain the immune homeostasis.
Collapse
Affiliation(s)
- Meijia Li
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Limei Qiu
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
| | - Lingling Wang
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture, Dalian Ocean University, Dalian 116023, China.
| | - Weilin Wang
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lusheng Xin
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yiqun Li
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhaoqun Liu
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Linsheng Song
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture, Dalian Ocean University, Dalian 116023, China
| |
Collapse
|
11
|
Central IKKβ inhibition prevents air pollution mediated peripheral inflammation and exaggeration of type II diabetes. Part Fibre Toxicol 2014; 11:53. [PMID: 25358444 PMCID: PMC4226918 DOI: 10.1186/s12989-014-0053-5] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Accepted: 09/29/2014] [Indexed: 01/01/2023] Open
Abstract
Background Prior experimental and epidemiologic data support a link between exposure to fine ambient particulate matter (<2.5 μm in aerodynamic diameter, PM2.5) and development of insulin resistance/Type II diabetes mellitus (Type II DM). We investigated the role of hypothalamic inflammation in PM2.5-mediated diabetes development. Methods KKay mice, a genetically susceptible model of Type II DM, were assigned to either concentrated PM2.5 or filtered air (FA) for 4–8 weeks via a versatile aerosol concentrator and exposure system, or administered intra-cerebroventricular with either IKKβ inhibitor (IMD-0354) or TNFα antibody (infliximab) for 4–5 weeks simultaneously with PM2.5 exposure. Glucose tolerance, insulin sensitivity, oxygen consumption and heat production were evaluated. At euthanasia, blood, spleen, visceral adipose tissue and hypothalamus were collected to measure inflammatory cells using flow cytometry. Standard immunohistochemical methods and quantitative PCR were used to assess targets of interest. Results PM2.5 exposure led to hyperglycemia and insulin resistance, which was accompanied by increased hypothalamic IL-6, TNFα, and IKKβ mRNA expression and microglial/astrocyte reactivity. Targeting the NFκB pathway with intra-cerebroventricular administration of an IKKβ inhibitor [IMD-0354, n = 8 for each group)], but not TNFα blockade with infliximab [(n = 6 for each group], improved glucose tolerance, insulin sensitivity, rectified energy homeostasis (O2 consumption, CO2 production, respiratory exchange ratio and heat generation) and reduced peripheral inflammation in response to PM2.5. Conclusions Central inhibition of IKKβ prevents PM2.5 mediated peripheral inflammation and exaggeration of type II diabetes. These results provide novel insights into how air pollution may mediate susceptibility to insulin resistance and Type II DM.
Collapse
|
12
|
Bagyinszky E, Youn YC, An SSA, Kim S. Characterization of inflammatory biomarkers and candidates for diagnosis of Alzheimer’s disease. BIOCHIP JOURNAL 2014. [DOI: 10.1007/s13206-014-8301-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
|
13
|
Téllez-Bañuelos MC, Ortiz-Lazareno PC, Jave-Suárez LF, Siordia-Sánchez VH, Bravo-Cuellar A, Santerre A, Zaitseva GP. Endosulfan decreases cytotoxic activity of nonspecific cytotoxic cells and expression of granzyme gene in Oreochromis niloticus. FISH & SHELLFISH IMMUNOLOGY 2014; 38:196-203. [PMID: 24657320 DOI: 10.1016/j.fsi.2014.03.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2013] [Revised: 02/23/2014] [Accepted: 03/07/2014] [Indexed: 06/03/2023]
Abstract
The effect of the organochlorinated insecticide endosulfan, on the cytotoxic activity of Nile tilapia nonspecific cytotoxic cells (NCC) was assessed. Juvenile Nile tilapia were exposed to endosulfan (7 ppb) for 96 h and splenic NCC were isolated. Flow cytometric phenotyping of NCC was based on the detection of the NCC specific membrane signaling protein NCCRP-1 by using the monoclonal antibody Mab 5C6; granzyme expression was evaluated by quantitative RT-PCR. The cytotoxic activity of sorted NCC on HL-60 tumoral cells was assessed using propidium iodide (PI) staining of DNA in HL-60 nuclei, indicating dead cells. Nile tilapia splenic NCC had the ability to kill HL-60 tumoral cells, however, the exposure to endosulfan significantly reduced, by a 65%, their cytotoxic activity when using the effector:target ratio of 40:1. Additionally, the exposure to endosulfan tended to increase the expression of NCCRP-1, which is involved in NCC antigen recognition and signaling. Moreover, it decreased the expression of the granzyme gene in exposed group as compared with non-exposed group; however significant differences between groups were not detected. In summary, the acute exposure of Nile tilapia to sublethal concentration of endosulfan induces alteration in function of NCC: significant decrease of cytotoxic activity and a tendency to lower granzyme expression, severe enough to compromise the immunity of this species.
Collapse
Affiliation(s)
- Martha Cecilia Téllez-Bañuelos
- Departamento de Biología Celular y Molecular, Universidad de Guadalajara, Carretera a Nogales Km 15.5, Las Agujas, 45110 Zapopan, Jalisco, Mexico.
| | - Pablo Cesar Ortiz-Lazareno
- Centro de Investigación Biomédica de Occidente, IMSS, Sierra Mojada 800, Col. Independencia, 44340 Guadalajara, Jalisco, Mexico
| | - Luis Felipe Jave-Suárez
- Centro de Investigación Biomédica de Occidente, IMSS, Sierra Mojada 800, Col. Independencia, 44340 Guadalajara, Jalisco, Mexico
| | - Victor Hugo Siordia-Sánchez
- Departamento de Biología Celular y Molecular, Universidad de Guadalajara, Carretera a Nogales Km 15.5, Las Agujas, 45110 Zapopan, Jalisco, Mexico
| | - Alejandro Bravo-Cuellar
- Centro de Investigación Biomédica de Occidente, IMSS, Sierra Mojada 800, Col. Independencia, 44340 Guadalajara, Jalisco, Mexico
| | - Anne Santerre
- Departamento de Biología Celular y Molecular, Universidad de Guadalajara, Carretera a Nogales Km 15.5, Las Agujas, 45110 Zapopan, Jalisco, Mexico
| | - Galina P Zaitseva
- Departamento de Biología Celular y Molecular, Universidad de Guadalajara, Carretera a Nogales Km 15.5, Las Agujas, 45110 Zapopan, Jalisco, Mexico
| |
Collapse
|
14
|
Roman A, Kuśmierczyk J, Klimek E, Rogóż Z, Nalepa I. Effects of co-administration of fluoxetine and risperidone on properties of peritoneal and pleural macrophages in rats subjected to the forced swimming test. Pharmacol Rep 2013; 64:1368-80. [PMID: 23406747 DOI: 10.1016/s1734-1140(12)70934-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2012] [Revised: 07/27/2012] [Indexed: 01/29/2023]
Abstract
BACKGROUND Literature data show that administration of atypical antipsychotic drug, risperidone (RIS), enhances antidepressive action of fluoxetine (FLU). As antidepressive treatments also regulate immune functions, we examined whether combined administration of FLU and RIS to rats subsequently subjected to a forced swimming test (FST) modifies parameters of macrophage activity that are directly related to their immunomodulatory functions, i.e., arginase (ARG) activity and nitric oxide (NO) synthesis. METHODS Antidepressive action of the drugs was assessed with FST. Peritoneal and pleural cells were eluted and selected parameters of immunoreactivity were assessed colorimetrically. RESULTS We found that the concomitant administration of FLU (10 mg/kg) and RIS (0.1 mg/kg) produced antidepressive-like effects in the FST,whereas the drugs were ineffective if administered separately. Stress related to the FST affected immune cell redistribution and changed some of the metabolic and immunomodulatory properties of macrophages. FLU administered to rats at a suboptimal dose for antidepressive action potently influenced macrophage immunomodulatory properties and redirected their activity toward anti-inflammatory M2 functional phenotype, as manifested by changes in the ARG/NO ratio. These effects resulted from a direct cellular influence of the drug, as well as its action via neuroendocrine pathways, as evidenced in peritoneal and pleural cells. Addition of RIS did not augment immunomodulatory action of FLU, though the combination showed antidepressant-like activity in the FST. CONCLUSIONS Our results suggest that when the drugs were administered together, FLU was potent enough to redirect macrophages toward M2 activity. It is also postulated that drug-induced changes in the immune system are not so closely related to antidepressant-like effects or might be secondary to those produced in the neuroendocrine system.
Collapse
Affiliation(s)
- Adam Roman
- Department of Brain Biochemistry, Institute of Pharmacology, Polish Academy of Sciences, Smętna 12, PL 31-343 Kraków, Poland.
| | | | | | | | | |
Collapse
|
15
|
Liu X, He L, Dinger B, Stensaas L, Fidone S. Effect of endothelin receptor antagonist bosentan on chronic hypoxia-induced inflammation and chemoafferent neuron adaptation in rat carotid body. High Alt Med Biol 2013; 13:209-16. [PMID: 22994521 DOI: 10.1089/ham.2012.1011] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Chronic hypoxia (CH) induces an inflammatory response in rat carotid body that is characterized by immune cell invasion and the expression of pro-inflammatory cytokines. In the present study, we have investigated the role of type-A endothelin (ET-A) receptors in the development of CH-induced inflammation. After 7 days of CH (380 Torr), double-label immunofluorescence studies demonstrated elevated levels of ET-A receptor and tyrosine hydroxylase (TH) in O(2)-sensitive type I cells. Following CH, ET-A receptors were also expressed on resident and invasive CD45+ immune cells distributed in tissue surrounding chemosensory cell lobules. Immnofluorescence and quantitative PCR studies showed that concurrent treatment with the ET-A/B receptor antagonist, bosentan (200 mg/kg/day), blocked CH-induced ED-1+ macrophage invasion and the upregulation of cytokines, including interleukin-1β (IL-1β), interleukin-6 (IL-6), tumor necrosis factor α (TNFα), and monocyte chemoattractant protein-1 (MCP-1). Moreover, bosentan treatment blocked the CH-induced increases in expression of acid-sensitive ion channels (ASICs) in chemoafferent neurons in the petrosal ganglion (PG). Our findings are consistent with the hypothesis that CH-induced inflammation involves the upregulation and release of ET-1 from type I cells. ET-1 may act in an autocrine/paracrine mechanism via ET-A receptors on chemosensory type I cells and immune cells to promote an inflammatory response.
Collapse
Affiliation(s)
- Xuemei Liu
- Department of Physiology, University of Utah School of Medicine, Salt Lake City, Utah 84108, USA
| | | | | | | | | |
Collapse
|
16
|
Kuebler U, Wirtz PH, Sakai M, Stemmer A, Ehlert U. Acute stress reduces wound-induced activation of microbicidal potential of ex vivo isolated human monocyte-derived macrophages. PLoS One 2013; 8:e55875. [PMID: 23431364 PMCID: PMC3568075 DOI: 10.1371/journal.pone.0055875] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2012] [Accepted: 01/03/2013] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND Psychological stress delays wound healing but the precise underlying mechanisms are unclear. Macrophages play an important role in wound healing, in particular by killing microbes. We hypothesized that (a) acute psychological stress reduces wound-induced activation of microbicidal potential of human monocyte-derived macrophages (HMDM), and (b) that these reductions are modulated by stress hormone release. METHODS Fourty-one healthy men (mean age 35 ± 13 years) were randomly assigned to either a stress or stress-control group. While the stress group underwent a standardized short-term psychological stress task after catheter-induced wound infliction, stress-controls did not. Catheter insertion was controlled. Assessing the microbicidal potential, we investigated PMA-activated superoxide anion production by HMDM immediately before and 1, 10 and 60 min after stress/rest. Moreover, plasma norepinephrine and epinephrine and salivary cortisol were repeatedly measured. In subsequent in vitro studies, whole blood was incubated with norepinephrine in the presence or absence of phentolamine (norepinephrine blocker) before assessing HMDM microbicidal potential. RESULTS Compared with stress-controls, HMDM of the stressed subjects displayed decreased superoxide anion-responses after stress (p's <.05). Higher plasma norepinephrine levels statistically mediated lower amounts of superoxide anion-responses (indirect effect 95% CI: 4.14-44.72). Norepinephrine-treated HMDM showed reduced superoxide anion-production (p<.001). This effect was blocked by prior incubation with phentolamine. CONCLUSIONS Our results suggest that acute psychological stress reduces wound-induced activation of microbicidal potential of HMDM and that this reduction is mediated by norepinephrine. This might have implications for stress-induced impairment in wound healing.
Collapse
Affiliation(s)
- Ulrike Kuebler
- Department of Clinical Psychology and Psychotherapy, University of Zurich, Zurich, Switzerland
| | - Petra H. Wirtz
- Department of Clinical Psychology and Psychotherapy, University of Zurich, Zurich, Switzerland
- Biological and Health Psychology, University of Bern, Bern, Switzerland
- * E-mail:
| | - Miho Sakai
- Nanotechnology Group, Swiss Federal Institute of Technology Zurich, Zurich, Switzerland
| | - Andreas Stemmer
- Nanotechnology Group, Swiss Federal Institute of Technology Zurich, Zurich, Switzerland
| | - Ulrike Ehlert
- Department of Clinical Psychology and Psychotherapy, University of Zurich, Zurich, Switzerland
| |
Collapse
|
17
|
Macia L, Yulyaningsih E, Pangon L, Nguyen AD, Lin S, Shi YC, Zhang L, Bijker M, Grey S, Mackay F, Herzog H, Sainsbury A. Neuropeptide Y1 receptor in immune cells regulates inflammation and insulin resistance associated with diet-induced obesity. Diabetes 2012; 61:3228-38. [PMID: 23011592 PMCID: PMC3501846 DOI: 10.2337/db12-0156] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Recruitment of activated immune cells into white adipose tissue (WAT) is linked to the development of insulin resistance and obesity, but the mechanism behind this is unclear. Here, we demonstrate that Y1 receptor signaling in immune cells controls inflammation and insulin resistance in obesity. Selective deletion of Y1 receptors in the hematopoietic compartment of mice leads to insulin resistance and inflammation in WAT under high fat-fed conditions. This is accompanied by decreased mRNA expression of the anti-inflammatory marker adiponectin in WAT and an increase of the proinflammatory monocyte chemoattractant protein-1 (MCP-1). In vitro, activated Y1-deficient intraperitoneal macrophages display an increased inflammatory response, with exacerbated secretion of MCP-1 and tumor necrosis factor, whereas addition of neuropeptide Y to wild-type macrophages attenuates the release of these cytokines, this effect being blocked by Y1 but not Y2 receptor antagonism. Importantly, treatment of adipocytes with the supernatant of activated Y1-deficient macrophages causes insulin resistance, as demonstrated by decreased insulin-induced phosphorylation of the insulin receptor and Akt as well as decreased expression of insulin receptor substrate 1. Thus, Y1 signaling in hematopoietic-derived cells such as macrophages is critical for the control of inflammation and insulin resistance in obesity.
Collapse
Affiliation(s)
- Laurence Macia
- Neuroscience Research Program, Garvan Institute of Medical Research, Darlinghurst, New South Wales, Australia
- Department of Immunology, School of Biomedical Sciences, Faculty of Medicine, Nursing, and Health Sciences, Monash University, Clayton, Victoria, Australia
| | - Ernie Yulyaningsih
- Neuroscience Research Program, Garvan Institute of Medical Research, Darlinghurst, New South Wales, Australia
| | - Laurent Pangon
- Cancer Research Program, Garvan Institute of Medical Research, Darlinghurst, New South Wales, Australia
| | - Amy D. Nguyen
- Neuroscience Research Program, Garvan Institute of Medical Research, Darlinghurst, New South Wales, Australia
| | - Shu Lin
- Neuroscience Research Program, Garvan Institute of Medical Research, Darlinghurst, New South Wales, Australia
| | - Yan C. Shi
- Neuroscience Research Program, Garvan Institute of Medical Research, Darlinghurst, New South Wales, Australia
| | - Lei Zhang
- Neuroscience Research Program, Garvan Institute of Medical Research, Darlinghurst, New South Wales, Australia
| | - Martijn Bijker
- Neuroscience Research Program, Garvan Institute of Medical Research, Darlinghurst, New South Wales, Australia
| | - Shane Grey
- Immunology Research Program, Garvan Institute of Medical Research, Darlinghurst, New South Wales, Australia
| | - Fabienne Mackay
- Department of Immunology, Central Clinical School, Faculty of Medicine, Nursing, and Health Sciences, Monash University, Melbourne, Victoria, Australia
| | - Herbert Herzog
- Neuroscience Research Program, Garvan Institute of Medical Research, Darlinghurst, New South Wales, Australia
- Corresponding author: Amanda Sainsbury, , or Herbert Herzog,
| | - Amanda Sainsbury
- Neuroscience Research Program, Garvan Institute of Medical Research, Darlinghurst, New South Wales, Australia
- School of Medical Sciences, University of New South Wales, Sydney, New South Wales, Australia
- Sydney Medical School, The University of Sydney, Sydney, New South Wales, Australia
- Corresponding author: Amanda Sainsbury, , or Herbert Herzog,
| |
Collapse
|
18
|
Mendu SK, Bhandage A, Jin Z, Birnir B. Different subtypes of GABA-A receptors are expressed in human, mouse and rat T lymphocytes. PLoS One 2012; 7:e42959. [PMID: 22927941 PMCID: PMC3424250 DOI: 10.1371/journal.pone.0042959] [Citation(s) in RCA: 79] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2012] [Accepted: 07/16/2012] [Indexed: 11/19/2022] Open
Abstract
γ-aminobutyric acid (GABA) is the most prominent neuroinhibitory transmitter in the brain, where it activates neuronal GABA-A receptors (GABA-A channels) located at synapses and outside of synapses. The GABA-A receptors are primary targets of many clinically useful drugs. In recent years, GABA has been shown to act as an immunomodulatory molecule. We have examined in human, mouse and rat CD4+ and CD8+ T cells which subunit isoforms of the GABA-A channels are expressed. The channel physiology and drug specificity is dictated by the GABA-A receptor subtype, which in turn is determined by the subunit isoforms that make the channel. There were 5, 8 and 13 different GABA-A subunit isoforms identified in human, mouse and rat CD4+ and CD8+ T cells, respectively. Importantly, the γ2 subunit that imposes benzodiazepine sensitivity on the GABA-A receptors, was only detected in the mouse T cells. Immunoblots and immunocytochemistry showed abundant GABA-A channel proteins in the T cells from all three species. GABA-activated whole-cell transient and tonic currents were recorded. The currents were inhibited by picrotoxin, SR95531 and bicuculline, antagonists of GABA-A channels. Clearly, in both humans and rodents T cells, functional GABA-A channels are expressed but the subtypes vary. It is important to bear in mind the interspecies difference when selecting the appropriate animal models to study the physiological role and pharmacological properties of GABA-A channels in CD4+ and CD8+ T cells and when selecting drugs aimed at modulating the human T cells function.
Collapse
Affiliation(s)
| | | | | | - Bryndis Birnir
- Molecular Physiology and Neuroscience, Department of Neuroscience, Uppsala University, Uppsala, Sweden
- * E-mail:
| |
Collapse
|
19
|
Fernandes CA, Nóbrega YK, Tosta CE. Pranic Meditation Affects Phagocyte Functions and Hormonal Levels of Recent Practitioners. J Altern Complement Med 2012; 18:761-8. [DOI: 10.1089/acm.2010.0718] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Affiliation(s)
- César A. Fernandes
- Laboratory of Cellular Immunology, Faculty of Medicine, University of Brasília, Brasília, Brazil
- Postgraduate Program in Medical Sciences, Faculty of Medicine, University of Brasília, Brasília, Brazil
| | - Yanna K.M. Nóbrega
- Laboratory of Clinical Analysis, Armed Forces Hospital, Brasília, Brazil
| | - C. Eduardo Tosta
- Laboratory of Cellular Immunology, Faculty of Medicine, University of Brasília, Brasília, Brazil
| |
Collapse
|
20
|
Tourjman V, Koué MÈ, Kouassi E, Potvin S. <i>In vivo</i> immunomodulatory effects of antipsychotics on inflammatory mediators: A review. ACTA ACUST UNITED AC 2012. [DOI: 10.4236/abb.2012.324072] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
21
|
Huisman H, Wynveen P, Nichkova M, Kellermann G. Novel ELISAs for Screening of the Biogenic Amines GABA, Glycine, β-Phenylethylamine, Agmatine, and Taurine Using One Derivatization Procedure of Whole Urine Samples. Anal Chem 2010; 82:6526-33. [DOI: 10.1021/ac100858u] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Han Huisman
- Pharmasan Laboratories Inc., Department of Research and Development, 375, 280th Street Osceola, Wisconsin 54020, and NeuroScience Inc., 375, 280th Street Osceola, Wisconsin 54020
| | - Paul Wynveen
- Pharmasan Laboratories Inc., Department of Research and Development, 375, 280th Street Osceola, Wisconsin 54020, and NeuroScience Inc., 375, 280th Street Osceola, Wisconsin 54020
| | - Mikaela Nichkova
- Pharmasan Laboratories Inc., Department of Research and Development, 375, 280th Street Osceola, Wisconsin 54020, and NeuroScience Inc., 375, 280th Street Osceola, Wisconsin 54020
| | - Gottfried Kellermann
- Pharmasan Laboratories Inc., Department of Research and Development, 375, 280th Street Osceola, Wisconsin 54020, and NeuroScience Inc., 375, 280th Street Osceola, Wisconsin 54020
| |
Collapse
|