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Howell A, Arsic N, Griebel P. Resting and activated bovine neutrophils and eosinophils differ in their responses to adrenergic agonists. Vet Immunol Immunopathol 2024; 272:110758. [PMID: 38669937 DOI: 10.1016/j.vetimm.2024.110758] [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: 01/17/2024] [Revised: 04/09/2024] [Accepted: 04/19/2024] [Indexed: 04/28/2024]
Abstract
Polymorphonuclear cells (PMN) provide a rapid response to infection and tissue damage and stress can modify these critical innate immune defences. The study of adrenergic receptor (AR) expression and function in bovine PMNs is limited but both neutrophils and eosinophils express numerous AR genes but differ significantly in their expression of individual AR genes. A flow cytometric technique was developed to differentiate between bovine neutrophils and eosinophils so both neutrophil and eosinophil responses to adrenergic agonists could be analysed. Neutrophils and eosinophils displayed significantly different changes in CD11b, L-selectin, and CD44 expression when activated by bovine serum opsonized zymosan and recombinant bovine interferon gamma. The responses of activated and resting neutrophils and eosinophils were then compared following stimulation with endogenous adrenergic agonists, epinephrine (E) norepinephrine (NE), and synthetic agonists targeting α1-, α2-, or β-ARs. Both resting and activated neutrophils and eosinophils displayed differences in iROS, CD44, and L-selectin expression following stimulation with E and NE. Resting neutrophils displayed pro-inflammatory responses to both E and NE, while resting eosinophils displayed a pro-inflammatory response to only NE. No single synthetic adrenergic agonist fully recapitulated responses observed with either E or NE and responses to adrenergic agonists were dose-dependent. In conclusion, bovine eosinophils and neutrophils responded to multiple adrenergic agonists by altering expression of proteins involved in immune surveillance and pro-inflammatory responses. Significant differences in neutrophil and eosinophil responses to adrenergic agonists are consistent with their differences in AR gene expression. This highlights the importance of analysing separately these two PMN subpopulations when investigating the effects of either endogenous or synthetic AR agonists.
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Affiliation(s)
- Angela Howell
- Vaccine and Infectious Disease Organization (VIDO), University of Saskatchewan, 120-Veterinary Road, Saskatoon, SK S7N 5E3, Canada; Global Institute for Food Security (GIFS), University of Saskatchewan, 421 Downey Rd, Saskatoon, SK S7N 4L8, Canada
| | - Natasa Arsic
- Vaccine and Infectious Disease Organization (VIDO), University of Saskatchewan, 120-Veterinary Road, Saskatoon, SK S7N 5E3, Canada
| | - Philip Griebel
- Vaccine and Infectious Disease Organization (VIDO), University of Saskatchewan, 120-Veterinary Road, Saskatoon, SK S7N 5E3, Canada; School of Public Health, 104 Clinic Place, University of Saskatchewan, SK S7N 2Z4, Canada.
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2
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Zhang H, Yang Y, Cao Y, Guan J. Effects of chronic stress on cancer development and the therapeutic prospects of adrenergic signaling regulation. Biomed Pharmacother 2024; 175:116609. [PMID: 38678960 DOI: 10.1016/j.biopha.2024.116609] [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: 01/19/2024] [Revised: 04/14/2024] [Accepted: 04/17/2024] [Indexed: 05/01/2024] Open
Abstract
Long-term chronic stress is an important factor in the poor prognosis of cancer patients. Chronic stress reduces the tissue infiltration of immune cells in the tumor microenvironment (TME) by continuously activating the adrenergic signaling, inhibits antitumor immune response and tumor cell apoptosis while also inducing epithelial-mesenchymal transition (EMT) and tumor angiogenesis, promoting tumor invasion and metastasis. This review first summarizes how adrenergic signaling activates intracellular signaling by binding different adrenergic receptor (AR) heterodimers. Then, we focused on reviewing adrenergic signaling to regulate multiple functions of immune cells, including cell differentiation, migration, and cytokine secretion. In addition, the article discusses the mechanisms by which adrenergic signaling exerts pro-tumorigenic effects by acting directly on the tumor itself. It also highlights the use of adrenergic receptor modulators in cancer therapy, with particular emphasis on their potential role in immunotherapy. Finally, the article reviews the beneficial effects of stress intervention measures on cancer treatment. We think that enhancing the body's antitumor response by adjusting adrenergic signaling can enhance the efficacy of cancer treatment.
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Affiliation(s)
- Hao Zhang
- Department of Oncology, The Eighth Medical Center, Chinese PLA (People's Liberation Army) General Hospital, Beijing 100091, China; Department of Oncology, The Fifth Medical Center, Chinese PLA (People's Liberation Army) General Hospital, Beijing 100071, China.
| | - Yuwei Yang
- College of Pulmonary & Critical Care Medicine, Chinese PLA General Hospital, Beijing Key Laboratory of OTIR, Beijing, 100091, China.
| | - Yan Cao
- College of Pulmonary & Critical Care Medicine, Chinese PLA General Hospital, Beijing Key Laboratory of OTIR, Beijing, 100091, China.
| | - Jingzhi Guan
- Department of Oncology, The Fifth Medical Center, Chinese PLA (People's Liberation Army) General Hospital, Beijing 100071, China.
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Cieślik M, Strobel SD, Bryniarski P, Twardowska H, Chmielowski A, Rudek M, Felkle D, Zięba K, Kaleta K, Jarczyński M, Nowak B, Bryniarski K, Nazimek K. Hypotensive drugs mitigate the high-sodium diet-induced pro-inflammatory activation of mouse macrophages in vivo. Biomed Pharmacother 2024; 175:116648. [PMID: 38677242 DOI: 10.1016/j.biopha.2024.116648] [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: 02/01/2024] [Revised: 04/16/2024] [Accepted: 04/24/2024] [Indexed: 04/29/2024] Open
Abstract
Nowadays, there is an increasing emphasis on the need to alleviate the chronic inflammatory response to effectively treat hypertension. However, there are still gaps in our understanding on how to achieve this. Therefore, research on interaction of antihypertensive drugs with the immune system is extremely interesting, since their therapeutic effect could partly result from amelioration of hypertension-related inflammation, in which macrophages seem to play a pivotal role. Thus, current comprehensive studies have investigated the impact of repeatedly administered hypotensive drugs (captopril, olmesartan, propranolol, carvedilol, amlodipine, verapamil) on macrophage functions in the innate and adaptive immunity, as well as if drug-induced effects are affected by a high-sodium diet (HSD), one of the key environmental risk factors of hypertension. Although the assayed medications increased the generation of reactive oxygen and nitrogen intermediates by macrophages from standard fed donors, they reversed HSD-induced enhancing effects on macrophage oxidative burst and secretion of pro-inflammatory cytokines. On the other hand, some drugs increased macrophage phagocytic activity and the expression of surface markers involved in antigen presentation, which translated into enhanced macrophage ability to activate B cells for antibody production. Moreover, the assayed medications augmented macrophage function and the effector phase of contact hypersensitivity reaction, but suppressed the sensitization phase of cell-mediated hypersensitivity under HSD conditions. Our current findings contribute to the recognition of mechanisms, by which excessive sodium intake affects macrophage immune activity in hypertensive individuals, and provide evidence that the assayed medications mitigate most of the HSD-induced adverse effects, suggesting their additional protective therapeutic activity.
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Affiliation(s)
- Martyna Cieślik
- Department of Immunology, Jagiellonian University Medical College, 18 Czysta St., Krakow 31-121, Poland
| | - Spencer D Strobel
- Department of Immunology, Jagiellonian University Medical College, 18 Czysta St., Krakow 31-121, Poland
| | - Paweł Bryniarski
- Department of Immunology, Jagiellonian University Medical College, 18 Czysta St., Krakow 31-121, Poland
| | - Hanna Twardowska
- Department of Immunology, Jagiellonian University Medical College, 18 Czysta St., Krakow 31-121, Poland
| | - Adam Chmielowski
- Department of Immunology, Jagiellonian University Medical College, 18 Czysta St., Krakow 31-121, Poland
| | - Michał Rudek
- Department of Immunology, Jagiellonian University Medical College, 18 Czysta St., Krakow 31-121, Poland
| | - Dominik Felkle
- Department of Immunology, Jagiellonian University Medical College, 18 Czysta St., Krakow 31-121, Poland
| | - Katarzyna Zięba
- Department of Immunology, Jagiellonian University Medical College, 18 Czysta St., Krakow 31-121, Poland
| | - Konrad Kaleta
- Department of Immunology, Jagiellonian University Medical College, 18 Czysta St., Krakow 31-121, Poland
| | - Mateusz Jarczyński
- Department of Immunology, Jagiellonian University Medical College, 18 Czysta St., Krakow 31-121, Poland
| | - Bernadeta Nowak
- Department of Immunology, Jagiellonian University Medical College, 18 Czysta St., Krakow 31-121, Poland
| | - Krzysztof Bryniarski
- Department of Immunology, Jagiellonian University Medical College, 18 Czysta St., Krakow 31-121, Poland
| | - Katarzyna Nazimek
- Department of Immunology, Jagiellonian University Medical College, 18 Czysta St., Krakow 31-121, Poland.
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Wijaya LK, Stumbles PA, Finch PM, Drummond PD. Inflammation induces α 1-adrenoceptor expression in peripheral blood mononuclear cells of patients with complex regional pain syndrome. Brain Behav Immun 2024; 115:201-208. [PMID: 37848097 DOI: 10.1016/j.bbi.2023.10.015] [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: 06/13/2023] [Revised: 10/09/2023] [Accepted: 10/14/2023] [Indexed: 10/19/2023] Open
Abstract
Persistent regional and systemic inflammation may promote pain and hyperalgesia in complex regional pain syndrome (CRPS). In this study, we investigated whether stimulation of α1-adrenoceptors (α1-AR) on peripheral blood mononuclear cells (PBMC) might contribute to this inflammatory state. PBMC were isolated from venous blood collected from 21 CRPS patients and 21 sex and age-matched controls. Lipopolysaccharide (LPS), a bacterial toxin, was administered to cultured PBMC for 24 h to trigger inflammation. Exposure to LPS resulted in heightened gene expression of α1-AR subtype B (α1B-AR) in PBMC of CRPS patients relative to controls. Interleukin (IL)-1β and IL-6 levels did not change when the α1-AR agonist phenylephrine was administered to naïve PBMC. However, α1-AR stimulation following LPS treatment increased IL-6 mRNA and protein levels in PBMC of patients and controls. To investigate the possible consequence of heightened IL-6 levels on immunoglobulin G antibody production, PBMC were stimulated with CD40 ligand and IL-21 to generate plasmablasts (B cells that secrete antibodies). This response was similar in patients and controls. Adding IL-6 to the cell culture medium increased plasmablast differentiation in controls and antibody production both in patients and controls. These findings suggest that the inflammatory cascade associated with elevated levels of IL-6 may generate α1B-AR expression in CRPS PBMC. A reciprocal interaction between heightened α1-AR expression in PBMC and IL-6 secretion may contribute to systemic inflammation and antibody production in CRPS.
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Affiliation(s)
- Linda K Wijaya
- School of Psychology, College of Health and Education, Murdoch University, 90 South St, Perth, Western Australia 6150, Australia; Telethon Kids Institute, Perth Children Hospital, 15 Hospital Avenue, Perth, Western Australia 6009, Australia.
| | - Philip A Stumbles
- School of Psychology, College of Health and Education, Murdoch University, 90 South St, Perth, Western Australia 6150, Australia; Telethon Kids Institute, Perth Children Hospital, 15 Hospital Avenue, Perth, Western Australia 6009, Australia.
| | - Philip M Finch
- School of Psychology, College of Health and Education, Murdoch University, 90 South St, Perth, Western Australia 6150, Australia.
| | - Peter D Drummond
- School of Psychology, College of Health and Education, Murdoch University, 90 South St, Perth, Western Australia 6150, Australia.
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Gauthier MM, Hayoz S, Banek CT. Neuroimmune interplay in kidney health and disease: Role of renal nerves. Auton Neurosci 2023; 250:103133. [PMID: 38061177 PMCID: PMC10748436 DOI: 10.1016/j.autneu.2023.103133] [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: 10/02/2023] [Revised: 11/15/2023] [Accepted: 11/22/2023] [Indexed: 12/18/2023]
Abstract
Renal nerves and their role in physiology and disease have been a topic of increasing interest in the past few decades. Renal inflammation contributes to many cardiorenal disease conditions, including hypertension, chronic kidney disease, and polycystic kidney disease. Much is known about the role of renal sympathetic nerves in physiology - they contribute to the regulation of sodium reabsorption, renin release, and renal vascular resistance. In contrast, far less is known about afferent, or "sensory," renal nerves, which convey signals from the kidney to the brain. While much remains unknown about these nerves in the context of normal physiology, even less is known about their contribution to disease states. Furthermore, it has become apparent that the crosstalk between renal nerves and the immune system may augment or modulate disease. Research from other fields, especially pain research, has provided critical insight into neuroimmune crosstalk. Sympathetic renal nerve activity may increase immune cell recruitment, but far less work has been done investigating the interplay between afferent renal nerves and the immune system. Evidence from other fields suggests that inflammation may augment afferent renal nerve activity. Furthermore, these nerves may exacerbate renal inflammation through the release of afferent-specific neurotransmitters.
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Affiliation(s)
- Madeline M Gauthier
- Department of Physiology, University of Arizona Health Sciences Center, Tucson, AZ, USA
| | - Sebastien Hayoz
- Department of Physiology, University of Arizona Health Sciences Center, Tucson, AZ, USA
| | - Christopher T Banek
- Department of Physiology, University of Arizona Health Sciences Center, Tucson, AZ, USA.
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Brooke AK, Murrow DP, Caldwell KCN, Witt CE, Ross AE. Measuring neuron-regulated immune cell physiology via the alpha-2 adrenergic receptor in an ex vivo murine spleen model. Cell Mol Life Sci 2023; 80:354. [PMID: 37945921 PMCID: PMC11071927 DOI: 10.1007/s00018-023-05012-2] [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: 07/10/2023] [Revised: 09/27/2023] [Accepted: 10/23/2023] [Indexed: 11/12/2023]
Abstract
The communication between the nervous and immune systems plays a crucial role in regulating immune cell function and inflammatory responses. Sympathetic neurons, which innervate the spleen, have been implicated in modulating immune cell activity. The neurotransmitter norepinephrine (NE), released by sympathetic neurons, influences immune cell responses by binding to adrenergic receptors on their surface. The alpha-2 adrenergic receptor (α2AR), expressed predominantly on sympathetic neurons, has received attention due to its autoreceptor function and ability to modulate NE release. In this study, we used fast-scan cyclic voltammetry (FSCV) to provide the first subsecond measurements of NE released in the white pulp region of the spleen and validated it with yohimbine, a known antagonist of α2AR. For further application of FSCV in neuroimmunology, we investigated the extent to which subsecond NE from sympathetic neurons is important for immune cell physiology and cytokine production, focusing on tumor necrosis factor-alpha (TNF-α), interleukin-10 (IL-10), and interleukin-6 (IL-6). Our findings provide insights into the regulatory mechanisms underlying sympathetic-immune interactions and show the significance of using FSCV, a traditional neurochemistry technique, to study these neuroimmune mechanisms.
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Affiliation(s)
- Alexandra K Brooke
- Department of Chemistry, University of Cincinnati, 312 College Dr. 404 Crosley Tower, Cincinnati, OH, 45221-0172, USA
| | - Daniel P Murrow
- Department of Chemistry, University of Cincinnati, 312 College Dr. 404 Crosley Tower, Cincinnati, OH, 45221-0172, USA
| | - Kaejaren C N Caldwell
- Department of Chemistry, University of Cincinnati, 312 College Dr. 404 Crosley Tower, Cincinnati, OH, 45221-0172, USA
| | - Colby E Witt
- Department of Chemistry, University of Cincinnati, 312 College Dr. 404 Crosley Tower, Cincinnati, OH, 45221-0172, USA
| | - Ashley E Ross
- Department of Chemistry, University of Cincinnati, 312 College Dr. 404 Crosley Tower, Cincinnati, OH, 45221-0172, USA.
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7
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Blasco-Fontecilla H. Is Histamine and Not Acetylcholine the Missing Link between ADHD and Allergies? Speer Allergic Tension Fatigue Syndrome Re-Visited. J Clin Med 2023; 12:5350. [PMID: 37629392 PMCID: PMC10455974 DOI: 10.3390/jcm12165350] [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: 05/28/2023] [Revised: 08/02/2023] [Accepted: 08/15/2023] [Indexed: 08/27/2023] Open
Abstract
Speer allergic tension-fatigue syndrome (SATFS) is a classic allergy syndrome characterized by allergy-like symptoms, muscle tension, headaches, chronic fatigue, and other particular behaviors that were initially described in the fifties. The particular behaviors displayed include symptoms such as hyperkinesis, hyperesthesia (i.e., insomnia), restlessness, and distractibility, among others. Interestingly, these symptoms are very similar to descriptions of attention deficit hyperactivity disorder (ADHD), the most prevalent neurodevelopmental disorder worldwide, which is characterized by inattention, hyperactivity, and impulsivity. The clinical description of SATFS precedes the nomination of ADHD in 1960 by Stella Chess. In this conceptual paper, we stress that there is a gap in the research on the relationship between ADHD and allergic pathologies. The hypotheses of this conceptual paper are (1) SATFS is probably one of the first and best historical descriptions of ADHD alongside a common comorbidity (allergy) displayed by these patients; (2) SATFS (ADHD) is a systemic disease that includes both somatic and behavioral manifestations that may influence each other in a bidirectional manner; (3) The role of neuroinflammation and histamine is key for understanding the pathophysiology of ADHD and its frequent somatic comorbidities; (4) The deficiency of the diamine oxidase (DAO) enzyme, which metabolizes histamine extracellularly, may play a role in the pathophysiology of ADHD. Decreased DAO activity may lead to an accumulation of histamine, which could contribute to core ADHD symptoms and comorbid disorders. Further empirical studies are needed to confirm our hypotheses.
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Affiliation(s)
- Hilario Blasco-Fontecilla
- Department of Psychiatry, School of Medicine, Autonoma University of Madrid, 28049 Madrid, Spain; ; Tel.: +34-911916012
- Department of Psychiatry, Puerta de Hierro University Hospital, Health Research Institute Puerta de Hierro-Segovia de Arana (IDIPHISA), Majadahonda, 28222 Madrid, Spain
- ITA Mental Health, Korian, 28043 Madrid, Spain
- Center of Biomedical Network Research on Mental Health (CIBERSAM), 28029 Madrid, Spain
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Farooq MA, Ajmal I, Hui X, Chen Y, Ren Y, Jiang W. β2-Adrenergic Receptor Mediated Inhibition of T Cell Function and Its Implications for CAR-T Cell Therapy. Int J Mol Sci 2023; 24:12837. [PMID: 37629018 PMCID: PMC10454818 DOI: 10.3390/ijms241612837] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Revised: 08/05/2023] [Accepted: 08/14/2023] [Indexed: 08/27/2023] Open
Abstract
The microenvironment of most tumors is complex, comprising numerous aspects of immunosuppression. Several studies have indicated that the adrenergic system is vital for controlling immunological responses. In the context of the tumor microenvironment, nor-adrenaline (NA) is poured in by innervating nerves and tumor tissues itself. The receptors for nor-adrenaline are present on the surfaces of cancer and immune cells and are often involved in the activation of pro-tumoral signaling pathways. Beta2-adrenergic receptors (β2-ARs) are an emerging class of receptors that are capable of modulating the functioning of immune cells. β2-AR is reported to activate regulatory immune cells and inhibit effector immune cells. Blocking β2-AR increases activation, proliferation, and cytokine release of T lymphocytes. Moreover, β2-AR deficiency during metabolic reprogramming of T cells increases mitochondrial membrane potential and biogenesis. In the view of the available research data, the immunosuppressive role of β2-AR in T cells presents it as a targetable checkpoint in CAR-T cell therapies. In this review, we have abridged the contemporary knowledge about adrenergic-stress-mediated β2-AR activation on T lymphocytes inside tumor milieu.
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Affiliation(s)
| | | | | | | | | | - Wenzheng Jiang
- Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai 200241, China; (M.A.F.); (I.A.)
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Kim W, Cho YA, Min KH, Kim DC, Lee KE. Machine Learning Approaches for Assessing Risk Factors of Adrenal Insufficiency in Patients Undergoing Immune Checkpoint Inhibitor Therapy. Pharmaceuticals (Basel) 2023; 16:1097. [PMID: 37631013 PMCID: PMC10457804 DOI: 10.3390/ph16081097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 07/28/2023] [Accepted: 08/01/2023] [Indexed: 08/27/2023] Open
Abstract
Adrenal insufficiency is a rare, yet life-threatening immune-related adverse event of immune checkpoint inhibitors (ICIs). This study aimed to establish a risk scoring system for adrenal insufficiency in patients receiving anti-programmed cell death 1 (PD-1) or anti-programmed cell death-ligand 1 (PD-L1) agents. Moreover, several machine learning methods were utilized to predict such complications. This study included 209 ICI-treated patients from July 2015 to February 2021, excluding those with prior adrenal insufficiency, previous steroid therapy, or incomplete data to ensure data integrity. Patients were continuously followed up at Gyeongsang National University Hospital, with morning blood samples taken for basal cortisol level measurements, facilitating a comprehensive analysis of their adrenal insufficiency risk. Using a chi-squared test and logistic regression model, we derived the odds ratio and adjusted odds ratio (AOR) through univariate and multivariable analyses. This study utilized machine learning algorithms, such as decision trees, random forests, support vector machines (SVM), and logistic regression to predict adrenal insufficiency in patients treated with ICIs. The performance of each algorithm was evaluated using metrics like accuracy, sensitivity, specificity, precision, and the area under the receiver operating characteristic curve (AUROC), ensuring rigorous assessment and reproducibility. A risk scoring system was developed from the multivariable and machine learning analyses. In a multivariable analysis, proton pump inhibitors (PPIs) (AOR 4.5), and α-blockers (AOR 6.0) were significant risk factors for adrenal insufficiency after adjusting for confounders. Among the machine learning models, logistic regression and elastic net showed good predictions, with AUROC values of 0.75 (0.61-0.90) and 0.76 (0.64-0.89), respectively. Based on multivariable and machine learning analyses, females (1 point), age ≥ 65 (1 point), PPIs (1 point), α-blockers (2 points), and antipsychotics (3 points) were integrated into the risk scoring system. From the logistic regression curve, patients with 0, 1, 2, 4, 5, and 6 points showed approximately 1.1%, 2.8%, 7.3%, 17.6%, 36.8%, 61.3%, and 81.2% risk for adrenal insufficiency, respectively. The application of our scoring system could prove beneficial in patient assessment and clinical decision-making while administering PD-1/PD-L1 inhibitors.
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Affiliation(s)
- Woorim Kim
- College of Pharmacy, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Young Ah Cho
- College of Pharmacy, Gyeongsang National University, Jinju 52828, Republic of Korea
- The Prime Hospital, 305 Nabulo, Jinju 52828, Republic of Korea
| | - Kyung Hyun Min
- College of Pharmacy, Chungbuk National University, Cheongju 28644, Republic of Korea
| | - Dong-Chul Kim
- Department of Pathology, Gyeongsang National University Hospital, Jinju 52727, Republic of Korea
- School of Medicine, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Kyung-Eun Lee
- College of Pharmacy, Chungbuk National University, Cheongju 28644, Republic of Korea
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Zimering MB. Repeated Traumatic Brain Injury is Associated with Neurotoxic Plasma Autoantibodies Directed against the Serotonin 2A and Alpha 1 Adrenergic Receptors. ENDOCRINOLOGY, DIABETES AND METABOLISM JOURNAL 2023; 7:1-12. [PMID: 37560352 PMCID: PMC10411137 DOI: 10.31038/edmj.2023722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/11/2023]
Abstract
Objectives Traumatic brain injury (TBI) was associated with increased plasma agonist autoantibodies targeting the serotonin 2A receptor. Repeated TBI exposure is associated with high risk for neurodegenerative and neuropsychiatric complications. Here we tested a hypothesis that repeated TBI is associated with plasma agonist autoantibodies targeting more than one kind of catecholamine G-protein coupled receptor. Methods Protein-A affinity chromatography was used to isolate the IgG fraction of plasma in forty-two middle-aged and older adults who had experienced one or more TBI exposures. The Ig (1/40th dilution=7.5 ug/mL) were tested for neurotoxicity in mouse neuroblastoma cells using an acute neurite retraction assay indicative of Gq11/IP3/Ca2+ and RhoA/Rho kinase signaling pathways' activation. Three different linear synthetic peptides corresponding to the second extracellular loop of the alpha 1A, alpha 2A or serotonin 2A receptors were used as target antigen in different enzyme-linked immunoassays. The second extracellular loop receptor peptides themselves (alpha 1A, alpha 2A) or a fragment (serotonin 2A) were tested for ability to prevent Ig-induced neurite retraction. Results Patients who had experienced either repeated TBI (N=10) or a single TBI with a co-morbid autoimmune disease (N=5) were significantly more likely to harbor neurotoxic plasma autoantibodies targeting both alpha 1 adrenergic and serotonin 2A receptors vs. patients having only a single TBI. Ig-induced neurotoxicity was significantly prevented by co-incubation with either 850 nM prazosin (alpha 1 adrenergic receptor) and/or 500 nM M100907 (serotonin 2A receptor) antagonists. Alpha 1 adrenergic receptor and serotonin 2A receptor Ig immunoreactive level and titer were significantly increased in repeated TBI and single TBI/autoimmune patients (N=7-8) compared to age-matched TBI patients without neurotoxic plasma Ig (N=4). SN.8, a linear synthetic peptide corresponding to a conserved region of the second extracellular loop (ECL) of the serotonin 2A receptor completely prevented neurite retraction induced by repeated TBI plasma Ig. A repeated TBI patient harboring alpha adrenergic receptor AAB alone experienced prospective steep decline in cognitive function over two years. Conclusions Repeated TBI and TBI with associated autoimmunity harbored more than one kind of neurotoxic catecholaminergic agonist GPCR autoantibody each associated with high risk for steep rate of cognitive decline. Specific immunoassays using the second extracellular receptor loop as target antigen are needed to detect each specific different GPCR autoantibody. A fragment of the second ECL of the serotonin 2A receptor (SN.8) neutralized Ig-induced neurotoxicity in repeated TBI or TBI with associated systemic autoimmunity.
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Affiliation(s)
- Mark B Zimering
- Medical Service, Veterans Affairs New Jersey Healthcare System, East Orange, New Jersey, USA
- Rutgers-Robert Wood Johnson Medical School, New Brunswick, NJ, USA
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11
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Li H, Li J, Hao C, Luan H, Zhang X, Zhao Z. Effects of anesthetic depth on perioperative T lymphocyte subsets in patients undergoing laparoscopic colorectal cancer surgery: a prospective, parallel-controlled randomized trial. BMC Anesthesiol 2023; 23:165. [PMID: 37189020 DOI: 10.1186/s12871-023-02129-6] [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: 02/08/2023] [Accepted: 05/09/2023] [Indexed: 05/17/2023] Open
Abstract
BACKGROUND During the perioperative period, the surgical stress response induced by surgical trauma tends to cause a decrease in peripheral lymphocytes. Anesthetics could reduce the stress response during surgery and prevent sympathetic nerve overexcitation. The goal of this study was to investigate how BIS-guided anesthetic depth affected peripheral T lymphocytes in patients undergoing laparoscopic colorectal cancer surgery. METHODS A total of 60 patients having elective laparoscopic colorectal cancer surgery were randomly assigned and analyzed (n = 30 for deep general anesthesia, BIS 35, n = 30 for light general anesthesia, BIS 55). Blood samples were collected immediately before anesthesia induction and immediately after operation, 24 h and 5 days postoperatively. The CD4+/CD8 + ratio, T lymphocyte subsets (including CD3 + T cells, CD4 + T cells, and CD8 + T cells), and natural killer (NK) cells were analyzed by flow cytometry. Serum interleukin-6 (IL-6), interferon -ɣ (IFN-ɣ), and vascular endothelial growth factor-α (VEGF-α) were also measured. RESULTS The CD4+/CD8 + ratio decreased 24 h after surgery in two groups, but the reduction did not differ between the two groups (P > 0.05). The concentration of IL-6 and the numerical rating scale (NRS) score in the BIS 55 group were significantly higher than that in the BIS 35 group 24 h after surgery (P = 0.001). There were no intergroup differences in CD3 + T cells, CD4 + T cells, CD8 + T cells, NK cells, VEGF-α, or the IFN-ɣ. Statistical analyses showed no differences between the two groups in the incidence of fever and surgical site infection during hospitalization. CONCLUSIONS Despite the fact that patients in deep general anesthesia group had low levels of the IL-6 24 h after surgery, the deep general anesthesia was not associated to a positive effect on patients' peripheral T lymphocytes during colorectal cancer surgery. We found no evidence that peripheral T lymphocyte subsets and natural killer cells were affected by the targeting a BIS of either 55 or 35 in patients undergoing laparoscopic colorectal cancer surgery in this trial. TRIAL REGISTRATION ChiCTR2200056624 ( www.chictr.org.cn ).
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Affiliation(s)
- Han Li
- Department of Anesthesiology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, No. 6 Zhenhua East Road, Lianyungang, Lianyungang, 222000, China
| | - Jiachi Li
- Department of Anesthesiology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, No. 6 Zhenhua East Road, Lianyungang, Lianyungang, 222000, China
| | - Conghui Hao
- Jinzhou Medical University, No.40 Songpo Road, Jinzhou, Jinzhou, 121010, China
| | - Hengfei Luan
- Department of Anesthesiology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, No. 6 Zhenhua East Road, Lianyungang, Lianyungang, 222000, China
| | - Xiaobao Zhang
- Department of Anesthesiology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, No. 6 Zhenhua East Road, Lianyungang, Lianyungang, 222000, China
| | - Zhibin Zhao
- Department of Anesthesiology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, No. 6 Zhenhua East Road, Lianyungang, Lianyungang, 222000, China.
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12
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Perez DM. α 1-Adrenergic Receptors: Insights into Potential Therapeutic Opportunities for COVID-19, Heart Failure, and Alzheimer's Disease. Int J Mol Sci 2023; 24:4188. [PMID: 36835598 PMCID: PMC9963459 DOI: 10.3390/ijms24044188] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 02/06/2023] [Accepted: 02/08/2023] [Indexed: 02/22/2023] Open
Abstract
α1-Adrenergic receptors (ARs) are members of the G-Protein Coupled Receptor superfamily and with other related receptors (β and α2), they are involved in regulating the sympathetic nervous system through binding and activation by norepinephrine and epinephrine. Traditionally, α1-AR antagonists were first used as anti-hypertensives, as α1-AR activation increases vasoconstriction, but they are not a first-line use at present. The current usage of α1-AR antagonists increases urinary flow in benign prostatic hyperplasia. α1-AR agonists are used in septic shock, but the increased blood pressure response limits use for other conditions. However, with the advent of genetic-based animal models of the subtypes, drug design of highly selective ligands, scientists have discovered potentially newer uses for both agonists and antagonists of the α1-AR. In this review, we highlight newer treatment potential for α1A-AR agonists (heart failure, ischemia, and Alzheimer's disease) and non-selective α1-AR antagonists (COVID-19/SARS, Parkinson's disease, and posttraumatic stress disorder). While the studies reviewed here are still preclinical in cell lines and rodent disease models or have undergone initial clinical trials, potential therapeutics discussed here should not be used for non-approved conditions.
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Affiliation(s)
- Dianne M Perez
- The Lerner Research Institute, The Cleveland Clinic Foundation, 9500 Euclid Ave, Cleveland, OH 44195, USA
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13
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Cong Z, Yang C, Zeng Z, Wu C, Zhao F, Shen Z, Xiao H, Zhu X. α 1-adrenoceptor stimulation ameliorates lipopolysaccharide-induced lung injury by inhibiting alveolar macrophage inflammatory responses through NF-κB and ERK1/2 pathway in ARDS. Front Immunol 2023; 13:1090773. [PMID: 36685596 PMCID: PMC9853445 DOI: 10.3389/fimmu.2022.1090773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Accepted: 12/19/2022] [Indexed: 01/07/2023] Open
Abstract
Introduction Catecholamines such as norepinephrine or epinephrine have been reported to participate in the development of acute respiratory distress syndrome (ARDS) by activating adrenergic receptors (ARs). But the role of α1-AR in this process has yet to be elucidated. Methods In this study, ARDS mouse model was induced by intratracheal instillation of lipopolysaccharide. After treatment with α1-AR agonist phenylephrine or antagonist prazosin, lung pathological injury, alveolar barrier disruption and inflammation, and haemodynamic changes were evaluated. Cytokine levels and cell viability of alveolar macrophages were measured in vitro. Nuclear factor κB (NF-κB), mitogen-activated protein kinase, and Akt signalling pathways were analysed by western blot. Results It showed that α1-AR activation alleviated lung injuries, including reduced histopathological damage, cytokine expression, and inflammatory cell infiltration, and improved alveolar capillary barrier integrity of ARDS mice without influencing cardiovascular haemodynamics. In vitro experiments suggested that α1-AR stimulation inhibited secretion of TNF-α, IL-6, CXCL2/MIP-2, and promoted IL-10 secretion, but did not affect cell viability. Moreover, α1-AR stimulation inhibited NF-κB and enhanced ERK1/2 activation without significantly influencing p38, JNK, or Akt activation. Discussion Our studies reveal that α1-AR stimulation could ameliorate lipopolysaccharide-induced lung injury by inhibiting NF-κB and promoting ERK1/2 to suppress excessive inflammatory responses of alveolar macrophages.
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Affiliation(s)
- Zhukai Cong
- Department of Critical Care Medicine, Peking University Third Hospital, Beijing, China,Department of Anaesthesiology, Peking University Third Hospital, Beijing, China
| | - Cui Yang
- Department of Critical Care Medicine, Peking University Third Hospital, Beijing, China
| | - Zhaojin Zeng
- Department of Critical Care Medicine, Peking University Third Hospital, Beijing, China
| | - Changyi Wu
- Department of Anaesthesiology, Peking University Third Hospital, Beijing, China
| | - Feng Zhao
- Department of Critical Care Medicine, Peking University Third Hospital, Beijing, China
| | - Ziyuan Shen
- Department of Critical Care Medicine, Peking University Third Hospital, Beijing, China
| | - Han Xiao
- Department of Cardiology and Institute of Vascular Medicine, Peking University Third Hospital, Beijing, China,National Health Commission (NHC) Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Beijing, China,Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China,Key Laboratory of Cardiovascular Receptors Research, Beijing, China,*Correspondence: Xi Zhu, ; Han Xiao,
| | - Xi Zhu
- Department of Critical Care Medicine, Peking University Third Hospital, Beijing, China,*Correspondence: Xi Zhu, ; Han Xiao,
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14
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Cremin M, Schreiber S, Murray K, Tay EXY, Reardon C. The diversity of neuroimmune circuits controlling lung inflammation. Am J Physiol Lung Cell Mol Physiol 2023; 324:L53-L63. [PMID: 36410021 PMCID: PMC9829467 DOI: 10.1152/ajplung.00179.2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
It is becoming increasingly appreciated that the nervous and immune systems communicate bidirectionally to regulate immunological outcomes in a variety of organs including the lung. Activation of neuronal signaling can be induced by inflammation, tissue damage, or pathogens to evoke or reduce immune cell activation in what has been termed a neuroimmune reflex. In the periphery, these reflexes include the cholinergic anti-inflammatory pathway, sympathetic reflex, and sensory nociceptor-immune cell pathways. Continual advances in neuroimmunology in peripheral organ systems have fueled small-scale clinical trials that have yielded encouraging results for a range of immunopathologies such as rheumatoid arthritis. Despite these successes, several limitations should give clinical investigators pause in the application of neural stimulation as a therapeutic for lung inflammation, especially if inflammation arises from a novel pathogen. In this review, the general mechanisms of each reflex, the evidence for these circuits in the control of lung inflammation, and the key knowledge gaps in our understanding of these neuroimmune circuits will be discussed. These limitations can be overcome not only through a better understanding of neuroanatomy but also through a systematic evaluation of stimulation parameters using immune activation in lung tissues as primary readouts. Our rapidly evolving understanding of the nervous and immune systems highlights the importance of communication between these cells in health and disease. This integrative approach has tremendous potential in the development of targeted therapeutics if specific challenges can be overcome.
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Affiliation(s)
- Michael Cremin
- Department of Anatomy, Physiology, and Cell Biology, UC Davis School of Veterinary Medicine, UC Davis, Davis, California
| | - Sierra Schreiber
- Department of Anatomy, Physiology, and Cell Biology, UC Davis School of Veterinary Medicine, UC Davis, Davis, California
| | - Kaitlin Murray
- Department of Anatomy, Physiology, and Cell Biology, UC Davis School of Veterinary Medicine, UC Davis, Davis, California
| | - Emmy Xue Yun Tay
- Department of Anatomy, Physiology, and Cell Biology, UC Davis School of Veterinary Medicine, UC Davis, Davis, California
| | - Colin Reardon
- Department of Anatomy, Physiology, and Cell Biology, UC Davis School of Veterinary Medicine, UC Davis, Davis, California
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15
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Mota CMD, Madden CJ. Neural control of the spleen as an effector of immune responses to inflammation: mechanisms and treatments. Am J Physiol Regul Integr Comp Physiol 2022; 323:R375-R384. [PMID: 35993560 PMCID: PMC9485006 DOI: 10.1152/ajpregu.00151.2022] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 07/29/2022] [Accepted: 08/11/2022] [Indexed: 11/22/2022]
Abstract
Immune system responses are a vital defense mechanism against pathogens. Inflammatory mediators finely regulate complex inflammatory responses from initiation to resolution. However, in certain conditions, the inflammation is initiated and amplified, but not resolved. Understanding the biological mechanisms underlying the regulation of the immune response is critical for developing therapeutic alternatives, including pharmaceuticals and bioelectronic tools. The spleen is an important immune effector organ since it orchestrates innate and adaptive immune responses such as pathogen clearance, cytokine production, and differentiation of cells, therefore playing a modulatory role that balances pro- and anti-inflammatory responses. However, modulation of splenic immune activity is a largely unexplored potential therapeutic tool that could be used for the treatment of inflammatory and life-threatening conditions. This review discusses some of the mechanisms controlling neuroimmune communication and the brain-spleen axis.
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Affiliation(s)
- Clarissa M D Mota
- Department of Neurological Surgery, Oregon Health and Science University, Portland, Oregon
| | - Christopher J Madden
- Department of Neurological Surgery, Oregon Health and Science University, Portland, Oregon
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16
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Yan M, Song Z, Kou H, Shang G, Shang C, Chen X, Ji Y, Bao D, Cheng T, Li J, Lv X, Liu H, Chen S. New Progress in Basic Research of Macrophages in the Pathogenesis and Treatment of Low Back Pain. Front Cell Dev Biol 2022; 10:866857. [PMID: 35669508 PMCID: PMC9163565 DOI: 10.3389/fcell.2022.866857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 04/05/2022] [Indexed: 11/13/2022] Open
Abstract
Low back pain (LBP) is quite common in clinical practice, which can lead to long-term bed rest or even disability. It is a worldwide health problem remains to be solved. LBP can be induced or exacerbated by abnormal structure and function of spinal tissue such as intervertebral disc (IVD), dorsal root ganglion (DRG) and muscle; IVD degeneration (IVDD) is considered as the most important among all the pathogenic factors. Inflammation, immune response, mechanical load, and hypoxia etc., can induce LBP by affecting the spinal tissue, among which inflammation and immune response are the key link. Inflammation and immune response play a double-edged sword role in LBP. As the main phagocytic cells in the body, macrophages are closely related to body homeostasis and various diseases. Recent studies have shown that macrophages are the only inflammatory cells that can penetrate the closed nucleus pulposus, expressed in various structures of the IVD, and the number is positively correlated with the degree of IVDD. Moreover, macrophages play a phagocytosis role or regulate the metabolism of DRG and muscle tissues through neuro-immune mechanism, while the imbalance of macrophages polarization will lead to more inflammatory factors to chemotaxis and aggregation, forming an “inflammatory waterfall” effect similar to “positive feedback,” which greatly aggravates LBP. Regulation of macrophages migration and polarization, inhibition of inflammation and continuous activation of immune response by molecular biological technology can markedly improve the inflammatory microenvironment, and thus effectively prevent and treat LBP. Studies on macrophages and LBP were mainly focused in the last 3–5 years, attracting more and more scholars’ attention. This paper summarizes the new research progress of macrophages in the pathogenesis and treatment of LBP, aiming to provide an important clinical prevention and treatment strategy for LBP.
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Affiliation(s)
- Miaoheng Yan
- Department of Orthopedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Zongmian Song
- Department of Orthopedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Hongwei Kou
- Department of Orthopedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Guowei Shang
- Department of Orthopedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Chunfeng Shang
- Department of Orthopedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiangrong Chen
- Department of Orthopedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yanhui Ji
- Department of Orthopedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Deming Bao
- Department of Orthopedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Tian Cheng
- Department of Orthopedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jinfeng Li
- Department of Orthopedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Xiao Lv
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hongjian Liu
- Department of Orthopedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Songfeng Chen
- Department of Orthopedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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α 1B/D-adrenoceptors regulate chemokine receptor-mediated leukocyte migration via formation of heteromeric receptor complexes. Proc Natl Acad Sci U S A 2022; 119:e2123511119. [PMID: 35537053 DOI: 10.1073/pnas.2123511119] [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] [Indexed: 11/18/2022] Open
Abstract
SignificanceHere we show that most chemokine receptors (CRs) form heteromeric complexes with α1-adrenergic receptors (ARs) in recombinant systems and that such heteromers are detectable in human monocytes and in the human monocytic leukemia cell line THP-1. Furthermore, we provide evidence that α1B/D-ARs control the function of their CR heteromerization partners. Our findings suggest that heteromeric complexes between α1B/D-ARs and CRs are necessary for normal function of CR heteromerization partners, indicate receptor heteromerization as a molecular mechanism by which stress hormones regulate leukocyte trafficking in health and disease, and offer opportunities to modulate leukocyte and/or cancer cell trafficking in disease processes.
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18
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Abstract
Stroke remains a significant unmet clinical need with few treatment options that have a very narrow therapeutic window, thereby causing massive mortality and morbidity in the United States and around the world. Accordingly, finding safe and effective novel treatments with a wider therapeutic window stands as an urgent need in stroke. The progressive inflammation that occurs centrally and peripherally after stroke serves as a unique therapeutic target to retard and even halt the secondary cell death. Stem cell therapy represents a potent approach that can diminish inflammation in both the stroke brain and periphery (eg, spleen), advancing a paradigm shift from a traditionally brain-focused therapy to treating stroke as a neurological disorder with a significant peripheral pathology. The purpose of this review article is to highlight the inflammation-mediated secondary cell death that plagues both brain and spleen in stroke and to evaluate the therapeutic potential of stem cell therapy in dampening these inflammatory responses.
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Affiliation(s)
- Stefan Anthony
- Lake Erie College of Osteopathic Medicine, 5000 Lakewood Ranch Boulevard, Bradenton, FL 34211, USA
| | - Dorothy Cabantan
- Michigan State University College of Osteopathic Medicine, 965 Wilson Rd, East Lansing, MI 48824, USA
| | - Molly Monsour
- Center of Excellence for Aging and Brain Repair, Department of Neurosurgery and Brain Repair, University of South Florida Morsani College of Medicine, 12901 Bruce B Downs Blvd, Tampa, FL 33612, USA
| | - Cesario V. Borlongan
- Center of Excellence for Aging and Brain Repair, Department of Neurosurgery and Brain Repair, University of South Florida Morsani College of Medicine, 12901 Bruce B Downs Blvd, Tampa, FL 33612, USA
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19
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Re-directing nanomedicines to the spleen: A potential technology for peripheral immunomodulation. J Control Release 2022; 350:60-79. [DOI: 10.1016/j.jconrel.2022.04.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Revised: 04/04/2022] [Accepted: 04/05/2022] [Indexed: 11/23/2022]
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20
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Modulation of Inflammatory Signaling Molecules in Bordetella pertussis Antigen-Challenged Human Monocytes in Presence of Adrenergic Agonists. Vaccines (Basel) 2022; 10:vaccines10020321. [PMID: 35214778 PMCID: PMC8879854 DOI: 10.3390/vaccines10020321] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 02/11/2022] [Accepted: 02/11/2022] [Indexed: 11/20/2022] Open
Abstract
BscF is a type III secretion system (T3SS) needle protein from Bordetella pertussis and has previously been shown to induce a sufficient Th1 and Th17 response in human monocytes and mice as a prerequisite for long-lasting protective immunity against pertussis infection. In our current study, we aim to compare the modulation of inflammatory signaling molecules as a direct measure of the immune response to the B. pertussis antigens BscF and Tdap in the presence or absence of the adrenergic receptor agonists phenylephrine (PE) or isoproterenol (ISO) to observe differences that may contribute to the diminished protective immunity of the current acellular pertussis (aP) vaccine, Tdap. Stimulation of human monocyte THP-1 cells with LPS, BscF, and Tdap induced a robust elevation of CCL20, CXCL10, PGE2, and PGF2α among most chemokine and prostanoid members when compared with the control treatment. Treatment with the adrenergic agonist PE or ISO significantly enhanced the BscF- and Tdap-stimulated modulation of CCL20 and CXCL10 but not PGE2 and PGF2α, suggesting that adrenergic modulation of pertussis antigen responses might be a new therapeutic strategy to improve the longevity of pertussis immunity. Stimulation of THP-1 cells with BscF alone initiated significant expression of CXCL10 and PGF2α but not when Tdap was used, suggesting that BscF might be an important pertussis antigen for next-generation pertussis vaccines or when combined with the current aP vaccine. Our data offer opportunities for designing new therapeutic approaches against pertussis infection.
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21
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Deluigi M, Morstein L, Schuster M, Klenk C, Merklinger L, Cridge RR, de Zhang LA, Klipp A, Vacca S, Vaid TM, Mittl PRE, Egloff P, Eberle SA, Zerbe O, Chalmers DK, Scott DJ, Plückthun A. Crystal structure of the α 1B-adrenergic receptor reveals molecular determinants of selective ligand recognition. Nat Commun 2022; 13:382. [PMID: 35046410 PMCID: PMC8770593 DOI: 10.1038/s41467-021-27911-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Accepted: 12/21/2021] [Indexed: 11/25/2022] Open
Abstract
α-adrenergic receptors (αARs) are G protein-coupled receptors that regulate vital functions of the cardiovascular and nervous systems. The therapeutic potential of αARs, however, is largely unexploited and hampered by the scarcity of subtype-selective ligands. Moreover, several aminergic drugs either show off-target binding to αARs or fail to interact with the desired subtype. Here, we report the crystal structure of human α1BAR bound to the inverse agonist (+)-cyclazosin, enabled by the fusion to a DARPin crystallization chaperone. The α1BAR structure allows the identification of two unique secondary binding pockets. By structural comparison of α1BAR with α2ARs, and by constructing α1BAR-α2CAR chimeras, we identify residues 3.29 and 6.55 as key determinants of ligand selectivity. Our findings provide a basis for discovery of α1BAR-selective ligands and may guide the optimization of aminergic drugs to prevent off-target binding to αARs, or to elicit a selective interaction with the desired subtype. This study reports the X-ray structure of the α1B-adrenergic G protein-coupled receptor bound to an inverse agonist, and unveils key determinants of subtype-selective ligand binding that may help the design of aminergic drugs with fewer side-effects.
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Affiliation(s)
- Mattia Deluigi
- Department of Biochemistry, University of Zurich, Winterthurerstrasse 190, CH-8057, Zurich, Switzerland
| | - Lena Morstein
- Department of Biochemistry, University of Zurich, Winterthurerstrasse 190, CH-8057, Zurich, Switzerland
| | - Matthias Schuster
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057, Zurich, Switzerland
| | - Christoph Klenk
- Department of Biochemistry, University of Zurich, Winterthurerstrasse 190, CH-8057, Zurich, Switzerland
| | - Lisa Merklinger
- Department of Biochemistry, University of Zurich, Winterthurerstrasse 190, CH-8057, Zurich, Switzerland.,Department of Biotechnology and Biomedicine, Technical University of Denmark, Søltofts Plads, 2800 Kgs, Lyngby, Denmark
| | - Riley R Cridge
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, 30 Royal Parade, Parkville, VIC, 3052, Australia
| | - Lazarus A de Zhang
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, 30 Royal Parade, Parkville, VIC, 3052, Australia.,Department of Biochemistry and Pharmacology, The University of Melbourne, Parkville, VIC, 3010, Australia
| | - Alexander Klipp
- Department of Biochemistry, University of Zurich, Winterthurerstrasse 190, CH-8057, Zurich, Switzerland.,Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1-5/10, CH-8093, Zurich, Switzerland
| | - Santiago Vacca
- Department of Biochemistry, University of Zurich, Winterthurerstrasse 190, CH-8057, Zurich, Switzerland
| | - Tasneem M Vaid
- Department of Pharmaceutical Sciences, University of Illinois at Chicago, Chicago, IL, USA
| | - Peer R E Mittl
- Department of Biochemistry, University of Zurich, Winterthurerstrasse 190, CH-8057, Zurich, Switzerland
| | - Pascal Egloff
- Department of Biochemistry, University of Zurich, Winterthurerstrasse 190, CH-8057, Zurich, Switzerland
| | - Stefanie A Eberle
- Department of Biochemistry, University of Zurich, Winterthurerstrasse 190, CH-8057, Zurich, Switzerland.,Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200, Copenhagen, Denmark
| | - Oliver Zerbe
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057, Zurich, Switzerland
| | - David K Chalmers
- Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, VIC, 3052, Australia
| | - Daniel J Scott
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, 30 Royal Parade, Parkville, VIC, 3052, Australia. .,Department of Biochemistry and Pharmacology, The University of Melbourne, Parkville, VIC, 3010, Australia.
| | - Andreas Plückthun
- Department of Biochemistry, University of Zurich, Winterthurerstrasse 190, CH-8057, Zurich, Switzerland.
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22
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Fares A, Toprak R, Borrman D, Ivester J. The use of α1-adrenergic receptor antagonists in the prevention of adverse outcomes of COVID-19 infection in obese patients. ADVANCES IN HUMAN BIOLOGY 2022. [DOI: 10.4103/aihb.aihb_177_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
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23
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Kern TS, Du Y, Tang J, Lee CA, Liu H, Dreffs A, Leinonen H, Antonetti DA, Palczewski K. Regulation of Adrenergic, Serotonin, and Dopamine Receptors to Inhibit Diabetic Retinopathy: Monotherapies versus Combination Therapies. Mol Pharmacol 2021; 100:470-479. [PMID: 34393108 PMCID: PMC9175131 DOI: 10.1124/molpharm.121.000278] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 08/03/2021] [Indexed: 11/22/2022] Open
Abstract
We compared monotherapies and combinations of therapies that regulate G-protein-coupled receptors (GPCRs) with respect to their abilities to inhibit early stages of diabetic retinopathy (DR) in streptozotocin-diabetic mice. Metoprolol (MTP; 0.04-1.0 mg/kg b.wt./day), bromocriptine (BRM; 0.01-0.1 mg/kg b.wt./day), doxazosin (DOX; 0.01-1.0 mg/kg b.wt./day), or tamsulosin (TAM; 0.05-0.25 mg/kg b.wt./day) were injected individually daily for 2 months in dose-response studies to assess their effects on the diabetes-induced increases in retinal superoxide and leukocyte-mediated cytotoxicity against vascular endothelial cells, both of which abnormalities have been implicated in the development of DR. Each of the individual drugs inhibited the diabetes-induced increase in retinal superoxide at the higher concentrations tested, but the inhibition was lost at lower doses. To determine whether combination therapies had superior effects over individual drugs, we intentionally selected for each drug a low dose that had little or no effect on the diabetes-induced retinal superoxide for use separately or in combinations in 8-month studies of retinal function, vascular permeability, and capillary degeneration in diabetes. At the low doses used, combinations of the drugs generally were more effective than individual drugs, but the low-dose MTP alone totally inhibited diabetes-induced reduction in a vision task, BRM or DOX alone totally inhibited the vascular permeability defect, and DOX alone totally inhibited diabetes-induced degeneration of retinal capillaries. Although low-dose MTP, BRM, DOX, or TAM individually had beneficial effects on some endpoints, combination of the therapies better inhibited the spectrum of DR lesions evaluated. SIGNIFICANCE STATEMENT: The pathogenesis of early stages of diabetic retinopathy remains incompletely understood, but multiple different cell types are believed to be involved in the pathogenic process. We have compared the effects of monotherapies to those of combinations of drugs that regulate GPCR signaling pathways with respect to their relative abilities to inhibit the development of early diabetic retinopathy.
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Affiliation(s)
- Timothy S Kern
- Center for Translational Vision Research, Gavin Herbert Eye Institute (T.S.K., Y.D., H.L., K.P.), Department of Physiology and Biophysics (K.P.), and Department of Chemistry (K.P.), University of California-Irvine, Irvine, California; Veterans Administration Medical Center, Long Beach Healthcare System, Research Service, Long Beach, California (T.S.K.); Department of Ophthalmology, Case Western Reserve University, Cleveland, Ohio (J.T., C.A.L.); and Kellogg Eye Center, Department of Ophthalmology and Visual Sciences, University of Michigan, Ann Arbor, Michigan (A.D., D.A.A.)
| | - Yunpeng Du
- Center for Translational Vision Research, Gavin Herbert Eye Institute (T.S.K., Y.D., H.L., K.P.), Department of Physiology and Biophysics (K.P.), and Department of Chemistry (K.P.), University of California-Irvine, Irvine, California; Veterans Administration Medical Center, Long Beach Healthcare System, Research Service, Long Beach, California (T.S.K.); Department of Ophthalmology, Case Western Reserve University, Cleveland, Ohio (J.T., C.A.L.); and Kellogg Eye Center, Department of Ophthalmology and Visual Sciences, University of Michigan, Ann Arbor, Michigan (A.D., D.A.A.)
| | - Jie Tang
- Center for Translational Vision Research, Gavin Herbert Eye Institute (T.S.K., Y.D., H.L., K.P.), Department of Physiology and Biophysics (K.P.), and Department of Chemistry (K.P.), University of California-Irvine, Irvine, California; Veterans Administration Medical Center, Long Beach Healthcare System, Research Service, Long Beach, California (T.S.K.); Department of Ophthalmology, Case Western Reserve University, Cleveland, Ohio (J.T., C.A.L.); and Kellogg Eye Center, Department of Ophthalmology and Visual Sciences, University of Michigan, Ann Arbor, Michigan (A.D., D.A.A.)
| | - Chieh Allen Lee
- Center for Translational Vision Research, Gavin Herbert Eye Institute (T.S.K., Y.D., H.L., K.P.), Department of Physiology and Biophysics (K.P.), and Department of Chemistry (K.P.), University of California-Irvine, Irvine, California; Veterans Administration Medical Center, Long Beach Healthcare System, Research Service, Long Beach, California (T.S.K.); Department of Ophthalmology, Case Western Reserve University, Cleveland, Ohio (J.T., C.A.L.); and Kellogg Eye Center, Department of Ophthalmology and Visual Sciences, University of Michigan, Ann Arbor, Michigan (A.D., D.A.A.)
| | - Haitao Liu
- Center for Translational Vision Research, Gavin Herbert Eye Institute (T.S.K., Y.D., H.L., K.P.), Department of Physiology and Biophysics (K.P.), and Department of Chemistry (K.P.), University of California-Irvine, Irvine, California; Veterans Administration Medical Center, Long Beach Healthcare System, Research Service, Long Beach, California (T.S.K.); Department of Ophthalmology, Case Western Reserve University, Cleveland, Ohio (J.T., C.A.L.); and Kellogg Eye Center, Department of Ophthalmology and Visual Sciences, University of Michigan, Ann Arbor, Michigan (A.D., D.A.A.)
| | - Alyssa Dreffs
- Center for Translational Vision Research, Gavin Herbert Eye Institute (T.S.K., Y.D., H.L., K.P.), Department of Physiology and Biophysics (K.P.), and Department of Chemistry (K.P.), University of California-Irvine, Irvine, California; Veterans Administration Medical Center, Long Beach Healthcare System, Research Service, Long Beach, California (T.S.K.); Department of Ophthalmology, Case Western Reserve University, Cleveland, Ohio (J.T., C.A.L.); and Kellogg Eye Center, Department of Ophthalmology and Visual Sciences, University of Michigan, Ann Arbor, Michigan (A.D., D.A.A.)
| | - Henri Leinonen
- Center for Translational Vision Research, Gavin Herbert Eye Institute (T.S.K., Y.D., H.L., K.P.), Department of Physiology and Biophysics (K.P.), and Department of Chemistry (K.P.), University of California-Irvine, Irvine, California; Veterans Administration Medical Center, Long Beach Healthcare System, Research Service, Long Beach, California (T.S.K.); Department of Ophthalmology, Case Western Reserve University, Cleveland, Ohio (J.T., C.A.L.); and Kellogg Eye Center, Department of Ophthalmology and Visual Sciences, University of Michigan, Ann Arbor, Michigan (A.D., D.A.A.)
| | - David A Antonetti
- Center for Translational Vision Research, Gavin Herbert Eye Institute (T.S.K., Y.D., H.L., K.P.), Department of Physiology and Biophysics (K.P.), and Department of Chemistry (K.P.), University of California-Irvine, Irvine, California; Veterans Administration Medical Center, Long Beach Healthcare System, Research Service, Long Beach, California (T.S.K.); Department of Ophthalmology, Case Western Reserve University, Cleveland, Ohio (J.T., C.A.L.); and Kellogg Eye Center, Department of Ophthalmology and Visual Sciences, University of Michigan, Ann Arbor, Michigan (A.D., D.A.A.)
| | - Krzysztof Palczewski
- Center for Translational Vision Research, Gavin Herbert Eye Institute (T.S.K., Y.D., H.L., K.P.), Department of Physiology and Biophysics (K.P.), and Department of Chemistry (K.P.), University of California-Irvine, Irvine, California; Veterans Administration Medical Center, Long Beach Healthcare System, Research Service, Long Beach, California (T.S.K.); Department of Ophthalmology, Case Western Reserve University, Cleveland, Ohio (J.T., C.A.L.); and Kellogg Eye Center, Department of Ophthalmology and Visual Sciences, University of Michigan, Ann Arbor, Michigan (A.D., D.A.A.)
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24
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Elkhatib SK, Moshfegh CM, Watson GF, Schwab AD, Katsurada K, Patel KP, Case AJ. Splenic denervation attenuates repeated social defeat stress-induced T-lymphocyte inflammation. BIOLOGICAL PSYCHIATRY GLOBAL OPEN SCIENCE 2021; 1:190-200. [PMID: 35330608 PMCID: PMC8941638 DOI: 10.1016/j.bpsgos.2021.05.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 04/12/2021] [Accepted: 05/06/2021] [Indexed: 11/28/2022] Open
Abstract
Background Post-traumatic stress disorder (PTSD) is a devastating psychological disorder. Patients with PTSD canonically demonstrate an increased risk for inflammatory diseases, as well as increased sympathetic tone and norepinephrine (NE) outflow. Yet, the exact etiology and causal nature of these physiologic changes remain unclear. Previously, we demonstrated that exogenous NE alters mitochondrial superoxide in T-lymphocytes to produce a pro-inflammatory T-helper 17 (TH17) phenotype, and observed similar TH17 polarization in a preclinical model of PTSD. Therefore, we hypothesized sympathetic-driven neuroimmune interactions could mediate psychological trauma-induced T-lymphocyte inflammation. Methods Repeated social defeat stress (RSDS) is a preclinical murine model that recapitulates the behavioral, autonomic, and inflammatory aspects of PTSD. Targeted splenic denervation (Dnx) was performed to deduce the contribution of splenic sympathetic nerves to RSDS-induced inflammation. Eighty-five C57BL/6J mice underwent Dnx or sham-operation, followed by RSDS or control paradigms. Animals were assessed for behavioral, autonomic, inflammatory, and redox profiles. Results Dnx did not alter the antisocial or anxiety-like behavior induced by RSDS. In circulation, RSDS Dnx animals exhibited diminished levels of T-lymphocyte-specific cytokines (IL-2, IL-17A, and IL-22) compared to intact animals, whereas other non-specific inflammatory cytokines (e.g., IL-6, TNF-α, and IL-10) were unaffected by Dnx. Importantly, Dnx specifically ameliorated the increases in RSDS-induced T-lymphocyte mitochondrial superoxide, TH17 polarization, and pro-inflammatory gene expression with minimal impact to non-T-lymphocyte immune populations. Conclusions Overall, our data suggest that sympathetic nerves regulate RSDS-induced splenic T-lymphocyte inflammation, but play less of a role in the behavioral and non-T-lymphocyte inflammatory phenotypes induced by this psychological trauma paradigm.
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Affiliation(s)
- Safwan K. Elkhatib
- Department of Cellular and Integrative Physiology, College of Medicine, University of Nebraska Medical Center, Omaha, Nebraska
| | - Cassandra M. Moshfegh
- Department of Cellular and Integrative Physiology, College of Medicine, University of Nebraska Medical Center, Omaha, Nebraska
| | - Gabrielle F. Watson
- Department of Cellular and Integrative Physiology, College of Medicine, University of Nebraska Medical Center, Omaha, Nebraska
| | - Aaron D. Schwab
- Department of Cellular and Integrative Physiology, College of Medicine, University of Nebraska Medical Center, Omaha, Nebraska
| | - Kenichi Katsurada
- Department of Cellular and Integrative Physiology, College of Medicine, University of Nebraska Medical Center, Omaha, Nebraska
- School of Medicine, Jichi Medical University, Shimotsuke, Japan
| | - Kaushik P. Patel
- Department of Cellular and Integrative Physiology, College of Medicine, University of Nebraska Medical Center, Omaha, Nebraska
| | - Adam J. Case
- Department of Cellular and Integrative Physiology, College of Medicine, University of Nebraska Medical Center, Omaha, Nebraska
- Department of Psychiatry and Behavioral Sciences, College of Medicine, Texas A&M Health Science Center, Bryan, Texas
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25
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Sibilio P, Bini S, Fiscon G, Sponziello M, Conte F, Pecce V, Durante C, Paci P, Falcone R, Norata GD, Farina L, Verrienti A. In silico drug repurposing in COVID-19: A network-based analysis. Biomed Pharmacother 2021; 142:111954. [PMID: 34358753 PMCID: PMC8316014 DOI: 10.1016/j.biopha.2021.111954] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 07/15/2021] [Accepted: 07/20/2021] [Indexed: 12/27/2022] Open
Abstract
The SARS-CoV-2 pandemic is a worldwide public health emergency. Despite the beginning of a vaccination campaign, the search for new drugs to appropriately treat COVID-19 patients remains a priority. Drug repurposing represents a faster and cheaper method than de novo drug discovery. In this study, we examined three different network-based approaches to identify potentially repurposable drugs to treat COVID-19. We analyzed transcriptomic data from whole blood cells of patients with COVID-19 and 21 other related conditions, as compared with those of healthy subjects. In addition to conventionally used drugs (e.g., anticoagulants, antihistaminics, anti-TNFα antibodies, corticosteroids), unconventional candidate compounds, such as SCN5A inhibitors and drugs active in the central nervous system, were identified. Clinical judgment and validation through clinical trials are always mandatory before use of the identified drugs in a clinical setting.
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Affiliation(s)
- Pasquale Sibilio
- Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy; Institute for Systems Analysis and Computer Science "Antonio Ruberti", National Research Council, Rome, Italy
| | - Simone Bini
- Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy
| | - Giulia Fiscon
- Institute for Systems Analysis and Computer Science "Antonio Ruberti", National Research Council, Rome, Italy; Fondazione per la Medicina Personalizzata, Via Goffredo Mameli, 3/1, Genova, Italy
| | - Marialuisa Sponziello
- Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy
| | - Federica Conte
- Institute for Systems Analysis and Computer Science "Antonio Ruberti", National Research Council, Rome, Italy
| | - Valeria Pecce
- Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy
| | - Cosimo Durante
- Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy
| | - Paola Paci
- Institute for Systems Analysis and Computer Science "Antonio Ruberti", National Research Council, Rome, Italy; Department of Computer, Control, and Management Engineering, Sapienza University of Rome, Rome, Italy.
| | - Rosa Falcone
- Phase 1 Unit-Clinical Trial Center Gemelli University Hospital, Rome, Italy
| | - Giuseppe Danilo Norata
- Department of Excellence in Pharmacological and Biomolecular Sciences, University of Milan and Center for the Study of Atherosclerosis, SISA Bassini Hospital, Milan, Italy
| | - Lorenzo Farina
- Department of Computer, Control, and Management Engineering, Sapienza University of Rome, Rome, Italy
| | - Antonella Verrienti
- Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy
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26
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Wheeler ND, Ensminger DC, Rowe MM, Wriedt ZS, Ashley NT. Alpha- and beta- adrenergic receptors regulate inflammatory responses to acute and chronic sleep fragmentation in mice. PeerJ 2021; 9:e11616. [PMID: 34221721 PMCID: PMC8236227 DOI: 10.7717/peerj.11616] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 05/24/2021] [Indexed: 01/17/2023] Open
Abstract
Sleep is a recuperative process, and its dysregulation has cognitive, metabolic, and immunological effects that are largely deleterious to human health. Epidemiological and empirical studies have suggested that sleep fragmentation (SF) as result of obstructive sleep apnea (OSA) and other sleep abnormalities leads to pronounced inflammatory responses, which are influenced by the sympathetic nervous system (SNS). However, the underlying molecular mechanisms contributing to SNS regulation of SF-induced inflammation are not fully understood. To assess the effects of the SNS upon inflammatory responses to SF, C57BL/6j female mice were placed in automated SF chambers with horizontally moving bars across the bottom of each cage at specified intervals to disrupt sleep. Mice were first subjected to either control (no bar movement), acute sleep fragmentation (ASF), or chronic sleep fragmentation (CSF) on a 12:12-h light/dark schedule. ASF involved a bar sweep every 120 s for 24 h, whereas CSF involved a bar sweep every 120 s for 12 h (during 12 L; resting period) over a period of 4 weeks. After exposure to these conditions, mice received an intraperitoneal injection of either phentolamine (5 mg/kg BW; an α-adrenergic receptor blocker), propranolol (5 mg/kg BW; a β-adrenergic receptor blocker), or vehicle (saline). Serum corticosterone concentration, brain and peripheral cytokine (IL1β, TNFα, and TGFβ) mRNA expression, and body mass were assessed. ASF and CSF significantly elevated serum corticosterone concentrations as well as cytokine mRNA expression levels compared with controls, and mice subjected to CSF had decreased body mass relative to controls. Mice subjected to CSF and treated with phentolamine or propranolol had a greater propensity for a decrease in cytokine gene expression compared with ASF, but effects were tissue-specific. Taken together, these results suggest that both α- and β-adrenergic receptors contribute to the SNS mediation of inflammatory responses, and adrenergic antagonists may effectively mitigate tissue-specific SF-mediated inflammation.
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Affiliation(s)
- Nicholas D Wheeler
- Department of Biology, Western Kentucky University, Bowling Green, KY, United States of America.,College of Veterinary Medicine, Mississippi State University, Starkville, MS, United States of America
| | - David C Ensminger
- Department of Integrative Biology, University of California, Berkeley, Berkeley, CA, United States of America
| | - Megan M Rowe
- Department of Biology, Western Kentucky University, Bowling Green, KY, United States of America
| | - Zachary S Wriedt
- Department of Biology, Western Kentucky University, Bowling Green, KY, United States of America
| | - Noah T Ashley
- Department of Biology, Western Kentucky University, Bowling Green, KY, United States of America
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27
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DeSantis AJ, Enten GA, Gao X, Majetschak M. Chemokine receptor antagonists with α 1-adrenergic receptor blocker activity. J Basic Clin Physiol Pharmacol 2021; 33:519-523. [PMID: 34144642 DOI: 10.1515/jbcpp-2020-0523] [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: 12/22/2020] [Accepted: 04/14/2021] [Indexed: 01/04/2023]
Abstract
OBJECTIVES Chemokine receptor antagonists are being explored for their therapeutic potential in various disease processes. As the chemokine (C-C motif) receptor 2 (CCR2) antagonist RS504393 is known to compete with ligand binding to α1-adrenoceptors, we tested a panel of 10 CCR antagonists for interactions with α1-adrenoceptors to evaluate potential cardiovascular activities and side-effect profiles. METHODS The PRESTO-Tango β-arrestin recruitment assay was utilized to test whether the CCR antagonists interfere with α1b-AR activation upon stimulation with phenylephrine. Pressure myography with isolated rat resistance arteries was employed to assess their effects on phenylephrine-induced vasoconstriction. The following antagonists were tested: CCR1-BX471, BX513, BI639667; CCR2-RS504393, INCB3284; CCR3-SB328437; and CCR4-AZD2098, and C021; CCR5-Maraviroc; CCR10-BI6901. The pan-α1-adrenoceptor antagonist prazosin was used as control. RESULTS Among the CCR antagonists tested, RS504393, BX513, and C021 inhibited phenylephrine-induced β-arrestin recruitment to α1b-adrenoceptor and phenylephrine-induced vasoconstriction. While RS504393 functioned as a competitive α1-adrenoceptor blocker, BX513 and C021 functioned as noncompetitive α1-adrenoceptor antagonists in both assay systems. Furthermore, RS504393, BX513, and C021 dose-dependently dilated arteries that were fully preconstricted with phenylephrine. CONCLUSIONS Our data suggest that CCR antagonists should be screened for cross-reactivity with α1-adrenoceptors to exclude potential adverse cardiovascular effects when used as anti inflammatory drugs.
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Affiliation(s)
| | - Garrett A Enten
- Departments of Surgery and Molecular Pharmacology & Physiology, University of South Florida, Tampa, FL, USA
| | - Xianlong Gao
- Department of Surgery, University of South Florida, Tampa, FL, USA
| | - Matthias Majetschak
- Departments of Surgery and Molecular Pharmacology & Physiology, University of South Florida, Tampa, FL, USA
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28
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Szklarski M, Freitag H, Lorenz S, Becker SC, Sotzny F, Bauer S, Hartwig J, Heidecke H, Wittke K, Kedor C, Hanitsch LG, Grabowski P, Sepúlveda N, Scheibenbogen C. Delineating the Association Between Soluble CD26 and Autoantibodies Against G-Protein Coupled Receptors, Immunological and Cardiovascular Parameters Identifies Distinct Patterns in Post-Infectious vs. Non-Infection-Triggered Myalgic Encephalomyelitis/Chronic Fatigue Syndrome. Front Immunol 2021; 12:644548. [PMID: 33889154 PMCID: PMC8056217 DOI: 10.3389/fimmu.2021.644548] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 03/17/2021] [Indexed: 12/15/2022] Open
Abstract
Soluble cluster of differentiation 26 (sCD26) has a wide range of enzymatic functions affecting immunological, metabolic and vascular regulation. Diminished sCD26 concentrations have been reported in various autoimmune diseases and also in Myalgic Encephalomyelitis/Chronic fatigue syndrome (ME/CFS). Here we re-evaluate sCD26 as a diagnostic marker and perform a comprehensive correlation analysis of sCD26 concentrations with clinical and paraclinical parameters in ME/CFS patients. Though this study did find significantly lower concentrations of sCD26 only in the female cohort and could not confirm diagnostic suitability, results from correlation analyses provide striking pathomechanistic insights. In patients with infection-triggered onset, the associations of low sCD26 with elevated autoantibodies (AAB) against alpha1 adrenergic (AR) and M3 muscarinic acetylcholine receptors (mAChR) point to a pathomechanism of infection-triggered autoimmune-mediated vascular and immunological dysregulation. sCD26 concentrations in infection-triggered ME/CFS were found to be associated with activated T cells, liver enzymes, creatin kinase (CK) and lactate dehydrogenase (LDH) and inversely with Interleukin-1 beta (IL-1b). Most associations are in line with the known effects of sCD26/DPP-4 inhibition. Remarkably, in non-infection-triggered ME/CFS lower sCD26 in patients with higher heart rate after orthostatic challenge and postural orthostatic tachycardia syndrome (POTS) suggest an association with orthostatic regulation. These findings provide evidence that the key enzyme sCD26 is linked to immunological alterations in infection-triggered ME/CFS and delineate a different pathomechanism in the non-infectious ME/CFS subset.
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Affiliation(s)
- Marvin Szklarski
- Institute of Medical Immunology, Charité –Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Helma Freitag
- Institute of Medical Immunology, Charité –Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Sebastian Lorenz
- Institute of Medical Immunology, Charité –Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Sonya C. Becker
- Institute of Medical Immunology, Charité –Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Franziska Sotzny
- Institute of Medical Immunology, Charité –Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Sandra Bauer
- Institute of Medical Immunology, Charité –Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Jelka Hartwig
- Institute of Medical Immunology, Charité –Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | | | - Kirsten Wittke
- Institute of Medical Immunology, Charité –Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Claudia Kedor
- Institute of Medical Immunology, Charité –Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Leif G. Hanitsch
- Institute of Medical Immunology, Charité –Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Patricia Grabowski
- Institute of Medical Immunology, Charité –Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Nuno Sepúlveda
- Institute of Medical Immunology, Charité –Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Carmen Scheibenbogen
- Institute of Medical Immunology, Charité –Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
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29
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Rose L, Graham L, Koenecke A, Powell M, Xiong R, Shen Z, Mench B, Kinzler KW, Bettegowda C, Vogelstein B, Athey S, Vogelstein JT, Konig MF, Wagner TH. The Association Between Alpha-1 Adrenergic Receptor Antagonists and In-Hospital Mortality From COVID-19. Front Med (Lausanne) 2021; 8:637647. [PMID: 33869251 PMCID: PMC8048524 DOI: 10.3389/fmed.2021.637647] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 02/25/2021] [Indexed: 12/15/2022] Open
Abstract
Effective therapies for coronavirus disease 2019 (COVID-19) are urgently needed, and pre-clinical data suggest alpha-1 adrenergic receptor antagonists (α1-AR antagonists) may be effective in reducing mortality related to hyperinflammation independent of etiology. Using a retrospective cohort design with patients in the Department of Veterans Affairs healthcare system, we use doubly robust regression and matching to estimate the association between baseline use of α1-AR antagonists and likelihood of death due to COVID-19 during hospitalization. Having an active prescription for any α1-AR antagonist (tamsulosin, silodosin, prazosin, terazosin, doxazosin, or alfuzosin) at the time of admission had a significant negative association with in-hospital mortality (relative risk reduction 18%; odds ratio 0.73; 95% CI 0.63–0.85; p ≤ 0.001) and death within 28 days of admission (relative risk reduction 17%; odds ratio 0.74; 95% CI 0.65–0.84; p ≤ 0.001). In a subset of patients on doxazosin specifically, an inhibitor of all three alpha-1 adrenergic receptors, we observed a relative risk reduction for death of 74% (odds ratio 0.23; 95% CI 0.03–0.94; p = 0.028) compared to matched controls not on any α1-AR antagonist at the time of admission. These findings suggest that use of α1-AR antagonists may reduce mortality in COVID-19, supporting the need for randomized, placebo-controlled clinical trials in patients with early symptomatic infection.
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Affiliation(s)
- Liam Rose
- Department of Veterans Affairs Health Economics Resource Center, Palo Alto VA, Menlo Park, CA, United States
| | - Laura Graham
- Department of Veterans Affairs Health Economics Resource Center, Palo Alto VA, Menlo Park, CA, United States
| | - Allison Koenecke
- Institute for Computational and Mathematical Engineering, Stanford University, Stanford, CA, United States
| | - Michael Powell
- Department of Biomedical Engineering, Institute for Computational Medicine, The Johns Hopkins University, Baltimore, MD, United States
| | - Ruoxuan Xiong
- Department of Management Science and Engineering, Stanford University, Stanford, CA, United States
| | - Zhu Shen
- Department of Statistics, Stanford University, Stanford, CA, United States
| | - Brett Mench
- Department of Biomedical Engineering, Institute for Computational Medicine, The Johns Hopkins University, Baltimore, MD, United States
| | - Kenneth W Kinzler
- Lustgarten Laboratory, Ludwig Center, Howard Hughes Medical Institute at The Johns Hopkins Kimmel Cancer Center, Baltimore, MD, United States
| | - Chetan Bettegowda
- Lustgarten Laboratory, Ludwig Center, Howard Hughes Medical Institute at The Johns Hopkins Kimmel Cancer Center, Baltimore, MD, United States.,Department of Neurosurgery and Oncology, The Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Bert Vogelstein
- Lustgarten Laboratory, Ludwig Center, Howard Hughes Medical Institute at The Johns Hopkins Kimmel Cancer Center, Baltimore, MD, United States
| | - Susan Athey
- Stanford Graduate School of Business, Stanford University, Stanford, CA, United States
| | - Joshua T Vogelstein
- Department of Biomedical Engineering, Institute for Computational Medicine, The Johns Hopkins University, Baltimore, MD, United States.,Department of Biostatistics, The Johns Hopkins Bloomberg School of Public Health at The Johns Hopkins University, Baltimore, MD, United States
| | - Maximilian F Konig
- Lustgarten Laboratory, Ludwig Center, Howard Hughes Medical Institute at The Johns Hopkins Kimmel Cancer Center, Baltimore, MD, United States.,Division of Rheumatology, Department of Medicine, The Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Todd H Wagner
- Department of Veterans Affairs Health Economics Resource Center, Palo Alto VA, Menlo Park, CA, United States.,Department of Surgery, Stanford University, Stanford, CA, United States
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30
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Rose L, Graham L, Koenecke A, Powell M, Xiong R, Shen Z, Kinzler KW, Bettegowda C, Vogelstein B, Athey S, Vogelstein JT, Konig MF, Wagner TH. The Association Between Alpha-1 Adrenergic Receptor Antagonists and In-Hospital Mortality from COVID-19. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2021. [PMID: 33398294 PMCID: PMC7781337 DOI: 10.1101/2020.12.18.20248346] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Effective therapies for coronavirus disease 2019 (COVID-19) are urgently needed, and preclinical data suggest alpha-1 adrenergic receptor antagonists (α1-AR antagonists) may be effective in reducing mortality related to hyperinflammation independent of etiology. Using a retrospective cohort design with patients in the Department of Veterans Affairs healthcare system, we use doubly robust regression and matching to estimate the association between baseline use of α1-AR antagonists and likelihood of death due to COVID-19 during hospitalization. Having an active prescription for any α1-AR antagonist (tamsulosin, silodosin, prazosin, terazosin, doxazosin, or alfuzosin) at the time of admission had a significant negative association with in-hospital mortality (relative risk reduction 18%; odds ratio 0.73; 95% CI 0.63 to 0.85; p ≤ 0.001) and death within 28 days of admission (relative risk reduction 17%; odds ratio 0.74; 95% CI 0.65 to 0.84; p ≤ 0.001). In a subset of patients on doxazosin specifically, an inhibitor of all three alpha-1 adrenergic receptors, we observed a relative risk reduction for death of 74% (odds ratio 0.23; 95% CI 0.03 to 0.94; p = 0.028) compared to matched controls not on any α1-AR antagonist at the time of admission. These findings suggest that use of α1-AR antagonists may reduce mortality in COVID-19, supporting the need for randomized, placebo-controlled clinical trials in patients with early symptomatic infection.
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Affiliation(s)
- Liam Rose
- VA Health Economics Resource Center, Palo Alto VA, Menlo Park, CA, USA
| | - Laura Graham
- VA Health Economics Resource Center, Palo Alto VA, Menlo Park, CA, USA
| | - Allison Koenecke
- Institute for Computational & Mathematical Engineering, Stanford University, Stanford, CA, USA
| | - Michael Powell
- Department of Biomedical Engineering, Institute for Computational Medicine, The Johns Hopkins University, Baltimore, MD, USA
| | - Ruoxuan Xiong
- Management Science & Engineering, Stanford University, Stanford, CA, USA
| | - Zhu Shen
- Department of Statistics, Stanford University, Stanford, CA, USA
| | - Kenneth W Kinzler
- Ludwig Center, Lustgarten Laboratory, and the Howard Hughes Medical Institute at The Johns Hopkins Kimmel Cancer Center, Baltimore, MD, USA
| | - Chetan Bettegowda
- Ludwig Center, Lustgarten Laboratory, and the Howard Hughes Medical Institute at The Johns Hopkins Kimmel Cancer Center, Baltimore, MD, USA.,The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Bert Vogelstein
- Ludwig Center, Lustgarten Laboratory, and the Howard Hughes Medical Institute at The Johns Hopkins Kimmel Cancer Center, Baltimore, MD, USA
| | - Susan Athey
- Stanford Graduate School of Business, Stanford University, Stanford, CA, USA
| | - Joshua T Vogelstein
- Department of Biomedical Engineering, Institute for Computational Medicine, The Johns Hopkins University, Baltimore, MD, USA.,Department of Biostatistics, The Johns Hopkins Bloomberg School of Public Health at The Johns Hopkins University, Baltimore, MD, USA
| | - Maximilian F Konig
- Ludwig Center, Lustgarten Laboratory, and the Howard Hughes Medical Institute at The Johns Hopkins Kimmel Cancer Center, Baltimore, MD, USA.,Division of Rheumatology, Department of Medicine, The Johns Hopkins University School of Medicine, Baltimore, MD, US
| | - Todd H Wagner
- VA Health Economics Resource Center, Palo Alto VA, Menlo Park, CA, USA.,Department of Surgery, Stanford University, Stanford, CA, USA
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31
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Chhatar S, Lal G. Role of adrenergic receptor signalling in neuroimmune communication. CURRENT RESEARCH IN IMMUNOLOGY 2021; 2:202-217. [PMID: 35492402 PMCID: PMC9040148 DOI: 10.1016/j.crimmu.2021.11.001] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Revised: 11/11/2021] [Accepted: 11/17/2021] [Indexed: 11/17/2022] Open
Abstract
Neuroimmune communication plays a crucial role in maintaining homeostasis and promptly responding to any foreign insults. Sympathetic nerve fibres are innervated into all the lymphoid organs (bone marrow, thymus, spleen, and lymph nodes) and provide a communication link between the central nervous system (CNS) and ongoing immune response in the tissue microenvironment. Neurotransmitters such as catecholamines (epinephrine and norepinephrine) bind to adrenergic receptors present on most immune and non-immune cells, establish a local neuroimmune-communication system, and help regulate the ongoing immune response. The activation of these receptors varies with the type of receptor-activated, target cell, the activation status of the cells, and timing of activation. Activating adrenergic receptors, specifically β-adrenergic signalling in immune cells leads to activation of the cAMP-PKA pathway or other non-canonical pathways. It predominantly leads to immune suppression such as inhibition of IL-2 secretion and a decrease in macrophages phagocytosis. This review discusses the expression of different adrenergic receptors in various immune cells, signalling, and how it modulates immune cell function and contributes to health and diseases. Understanding the neuroimmune communication through adrenergic receptor signalling in immune cells could help to design better strategies to control inflammation and autoimmunity. Primary and secondary lymphoid organs are innervated with sympathetic nerve fibres. Adrenergic receptor expression on immune and non-immune cells establishes a local neuroimmune communication system. Adrenergic receptor signalling in immune cells controls the differentiation and function of various immune cells. Modulating adrenergic receptor signalling with a specific agonist or antagonist also affect the immune response.
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Affiliation(s)
| | - Girdhari Lal
- Corresponding author. National Centre for Cell Science, NCCS Complex, Ganeshkhind, Pune, MH-411007, India.
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Hering L, Rahman M, Potthoff SA, Rump LC, Stegbauer J. Role of α2-Adrenoceptors in Hypertension: Focus on Renal Sympathetic Neurotransmitter Release, Inflammation, and Sodium Homeostasis. Front Physiol 2020; 11:566871. [PMID: 33240096 PMCID: PMC7680782 DOI: 10.3389/fphys.2020.566871] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 10/19/2020] [Indexed: 12/19/2022] Open
Abstract
The kidney is extensively innervated by sympathetic nerves playing an important role in the regulation of blood pressure homeostasis. Sympathetic nerve activity is ultimately controlled by the central nervous system (CNS). Norepinephrine, the main sympathetic neurotransmitter, is released at prejunctional neuroeffector junctions in the kidney and modulates renin release, renal vascular resistance, sodium and water handling, and immune cell response. Under physiological conditions, renal sympathetic nerve activity (RSNA) is modulated by peripheral mechanisms such as the renorenal reflex, a complex interaction between efferent sympathetic nerves, central mechanism, and afferent sensory nerves. RSNA is increased in hypertension and, therefore, critical for the perpetuation of hypertension and the development of hypertensive kidney disease. Renal sympathetic neurotransmission is not only regulated by RSNA but also by prejunctional α2-adrenoceptors. Prejunctional α2-adrenoceptors serve as autoreceptors which, when activated by norepinephrine, inhibit the subsequent release of norepinephrine induced by a sympathetic nerve impulse. Deletion of α2-adrenoceptors aggravates hypertension ultimately by modulating renal pressor response and sodium handling. α2-adrenoceptors are also expressed in the vasculature, renal tubules, and immune cells and exert thereby effects related to vascular tone, sodium excretion, and inflammation. In the present review, we highlight the role of α2-adrenoceptors on renal sympathetic neurotransmission and its impact on hypertension. Moreover, we focus on physiological and pathophysiological functions mediated by non-adrenergic α2-adrenoceptors. In detail, we discuss the effects of sympathetic norepinephrine release and α2-adrenoceptor activation on renal sodium transporters, on renal vascular tone, and on immune cells in the context of hypertension and kidney disease.
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Affiliation(s)
- Lydia Hering
- Department of Nephrology, Medical Faculty, University Hospital Düsseldorf, Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany
| | - Masudur Rahman
- Department of Nephrology, Medical Faculty, University Hospital Düsseldorf, Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany
| | - Sebastian A Potthoff
- Department of Nephrology, Medical Faculty, University Hospital Düsseldorf, Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany
| | - Lars C Rump
- Department of Nephrology, Medical Faculty, University Hospital Düsseldorf, Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany
| | - Johannes Stegbauer
- Department of Nephrology, Medical Faculty, University Hospital Düsseldorf, Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany
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Laborc KF, Spekker E, Bohár Z, Szűcs M, Nagy-Grócz G, Fejes-Szabó A, Vécsei L, Párdutz Á. Trigeminal activation patterns evoked by chemical stimulation of the dura mater in rats. J Headache Pain 2020; 21:101. [PMID: 32799798 PMCID: PMC7429748 DOI: 10.1186/s10194-020-01169-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 08/07/2020] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Although migraine is one of the most common primary headaches, its therapy is still limited in many cases. The use of animal models is crucial in the development of novel therapeutic strategies, but unfortunately, none of them show all aspects of the disease, therefore, there is a constant need for further improvement in this field. The application of inflammatory agents on the dura mater is a widely accepted method to mimic neurogenic inflammation in rodents, which plays a key role in the pathomechanism of migraine. Complete Freund's Adjuvant (CFA), and a mixture of inflammatory mediators, called inflammatory soup (IS) are often used for this purpose. METHODS To examine the activation pattern that is caused by chemical stimulation of dura mater, we applied CFA or IS over the right parietal lobe. After 2 h and 4 h (CFA groups), or 2.5 h and 4 h (IS groups), animals were perfused, and c-Fos immunoreactive cells were counted in the caudal trigeminal nucleus. To explore every pitfall, we examined whether our surgical procedure (anesthetic drug, stereotaxic apparatus, local lidocaine) can alter the results under the same experimental settings. c-Fos labeled cells were counted in the second-order neuron area based on the somatotopic organization of the trigeminal nerve branches. RESULTS We could not find any difference between the CFA and physiological saline group neither 2 h, nor 4 h after dural stimulation. IS caused significant difference after both time points between IS treated and control group, and between treated (right) and control (left) side. Stereotaxic frame usage had a substantial effect on the obtained results. CONCLUSIONS Counting c-Fos immunoreactive cells based on somatotopic organization of the trigeminal nerve helped to examine the effect of chemical stimulation of dura in a more specific way. As a result, the use of IS over the parietal lobe caused activation in the area of the ophthalmic nerve. To see this effect, the use of lidocaine anesthesia is indispensable. In conclusion, application of IS on the dura mater induces short-term, more robust c-Fos activation than CFA, therefore it might offer a better approach to model acute migraine headache in rodents.
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Affiliation(s)
- Klaudia Flóra Laborc
- Department of Neurology, Faculty of Medicine, Albert Szent-Györgyi Clinical Center, University of Szeged, Semmelweis u. 6, Szeged, H-6725, Hungary
| | - Eleonóra Spekker
- Department of Neurology, Faculty of Medicine, Albert Szent-Györgyi Clinical Center, University of Szeged, Semmelweis u. 6, Szeged, H-6725, Hungary
| | - Zsuzsanna Bohár
- Department of Neurology, Faculty of Medicine, Albert Szent-Györgyi Clinical Center, University of Szeged, Semmelweis u. 6, Szeged, H-6725, Hungary
- MTA-SZTE Neuroscience Research Group, Szeged, Hungary
| | - Mónika Szűcs
- Department of Medical Physics and Informatics, Faculty of Medicine, Albert Szent-Györgyi Clinical Center, University of Szeged, Szeged, Hungary
| | - Gábor Nagy-Grócz
- Department of Neurology, Faculty of Medicine, Albert Szent-Györgyi Clinical Center, University of Szeged, Semmelweis u. 6, Szeged, H-6725, Hungary
- Faculty of Health Sciences and Social Studies, University of Szeged, Szeged, Hungary
| | - Annamária Fejes-Szabó
- Department of Neurology, Faculty of Medicine, Albert Szent-Györgyi Clinical Center, University of Szeged, Semmelweis u. 6, Szeged, H-6725, Hungary
- MTA-SZTE Neuroscience Research Group, Szeged, Hungary
| | - László Vécsei
- Department of Neurology, Faculty of Medicine, Albert Szent-Györgyi Clinical Center, University of Szeged, Semmelweis u. 6, Szeged, H-6725, Hungary.
- MTA-SZTE Neuroscience Research Group, Szeged, Hungary.
- Interdisciplinary Excellence Center, Faculty of Medicine, University of Szeged, Szeged, Hungary.
| | - Árpád Párdutz
- Department of Neurology, Faculty of Medicine, Albert Szent-Györgyi Clinical Center, University of Szeged, Semmelweis u. 6, Szeged, H-6725, Hungary
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Wijaya LK, Stumbles PA, Drummond PD. A positive feedback loop between alpha 1-adrenoceptors and inflammatory cytokines in keratinocytes. Exp Cell Res 2020; 391:112008. [PMID: 32304706 DOI: 10.1016/j.yexcr.2020.112008] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 04/02/2020] [Accepted: 04/12/2020] [Indexed: 01/11/2023]
Abstract
A positive feedback loop between inflammatory cytokines and alpha1-adrenoceptors (α1-AR) (a target of the sympathetic nervous system neurotransmitter norepinephrine) influences inflammatory responses in immune cells. This cross-talk between the sympathetic nervous system and immune system may play a role in promoting chronic inflammation. Emerging evidence shows that α1-AR interact with inflammatory cytokines in keratinocytes, and this epidermal adrenergic signalling may contribute to skin inflammatory responses following injury, disease or stress. In this study, utilizing an in vitro approach, we hypothesized that α1-AR interact in a positive feedback loop with inflammatory mediators in keratinocytes. The pro-inflammatory cytokine tumor necrosis factor α (TNFα) was used to induce an inflammatory state in cultured keratinocytes. TNFα increased interleukin (IL)-1β, IL-6, IL-8 and nerve growth factor (NGF) production and gene expression levels of α1-AR subtype B (α1B-AR). Additional stimulation of α1-AR further increased IL-6 levels, while maintaining high levels of IL-8 and decreasing levels of IL-1β and NGF. Our results suggest that reciprocal influences between α1-ARs and inflammatory cytokines may play a role in normal inflammatory responses. However, if unchecked, this cycle could contribute to pathology (e.g. chronic inflammatory diseases, chronic pain conditions, and stress-induced cancer progression).
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Affiliation(s)
- Linda K Wijaya
- College of Science, Health, Engineering and Education, Murdoch University, Perth, Western Australia, Australia
| | - Philip A Stumbles
- College of Science, Health, Engineering and Education, Murdoch University, Perth, Western Australia, Australia; Telethon Kids Institute, Perth, Western Australia, Australia
| | - Peter D Drummond
- College of Science, Health, Engineering and Education, Murdoch University, Perth, Western Australia, Australia.
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A locus on chromosome 5 shows African ancestry-limited association with alloimmunization in sickle cell disease. Blood Adv 2019; 2:3637-3647. [PMID: 30578281 DOI: 10.1182/bloodadvances.2018020594] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Accepted: 11/08/2018] [Indexed: 12/11/2022] Open
Abstract
Red blood cell (RBC) transfusion remains a critical therapeutic intervention in sickle cell disease (SCD); however, the apparent propensity of some patients to regularly develop RBC alloantibodies after transfusion presents a significant challenge to finding compatible blood for so-called alloimmunization responders. Predisposing genetic loci have long been thought to contribute to the responder phenomenon, but to date, no definitive loci have been identified. We undertook a genome-wide association study of alloimmunization responder status in 267 SCD multiple transfusion recipients, using genetic estimates of ancestral admixture to bolster our findings. Analyses revealed single nucleotide polymorphisms (SNPs) on chromosomes 2 and 5 approaching genome-wide significance (minimum P = 2.0 × 10-8 and 8.4 × 10-8, respectively), with local ancestry analysis demonstrating similar levels of admixture in responders and nonresponders at implicated loci. Association at chromosome 5 was nominally replicated in an independent cohort of 130 SCD transfusion recipients, with meta-analysis surpassing genome-wide significance (rs75853687, P meta = 6.6 × 10-9), and this extended to individuals forming multiple (>3) alloantibodies (P meta = 9.4 × 10-5). The associated variant is rare outside of African populations, and orthogonal genome-wide haplotype analyses, contingent on local ancestry, revealed genome-wide significant sharing of a ∼60-kb haplotype of African ancestry at the chromosome 5 locus (Bayes Factor = 4.95). This locus overlaps a putative cis-acting enhancer predicted to regulate transcription of ADRA1B and the lncRNA LINC01847, both members of larger ontologies associated with immune regulation. Our findings provide potential insights to the pathophysiology underlying the development of alloantibodies and implicate non-RBC ancestry-limited loci in the susceptibility to alloimmunization.
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Dopamine D 1 receptor agonists inhibit lung metastasis of breast cancer reducing cancer stemness. Eur J Pharmacol 2019; 859:172499. [PMID: 31242439 DOI: 10.1016/j.ejphar.2019.172499] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 06/21/2019] [Accepted: 06/21/2019] [Indexed: 12/12/2022]
Abstract
The leading causes of death in breast cancer patients are disease recurrence and metastasis. Growing evidence has suggested that metastasis possibly originates from cancer stem-like cells (CSCs). Previous studies indicated dopamine decreased CSC frequency through activating dopamine D1 receptor pathway. Hence, this study explored the efficacy of two dopamine D1 receptor agonists in lung metastasis of breast cancer and the preliminary mechanism. The two dopamine D1 receptor agonists, fenoldopam (FEN) and l-stepholidine (l-SPD), performed well in decreasing lung metastasis in 4T1 breast cancer model. And the cGMP in the primary tumor was significantly elevated while cAMP mildly elevated in FEN and l-SPD dosing groups. CSC markers (CD44+/CD24- and ALDH+) and MMP2 in 4T1 primary tumor were repressed after dopamine D1 receptor agonist administration while E-cadherin up-regulated. FEN and l-SPD also inhibited cancer stemness and cell motility in vitro, and the inhibitory effects could be reversed by dopamine D1 receptor antagonist SCH23390. Besides, FEN impacted the white blood cell increase caused by breast cancer disease showing decreased neutrophils but increased lymphocytes. Drug safety was verified in aspects of body weight, organ index and tissue section. In conclusion, dopamine D1 receptor agonists FEN and l-SPD showed efficacy in inhibiting metastasis along with good safety in breast cancer, thus providing an alternative for anti-metastasis therapy in the future. Furthermore, this study also indicates that dopamine D1 receptor may be a possible target for metastatic breast cancer treatment and even other cancers at a late stage.
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Bottasso E. Toward the Existence of a Sympathetic Neuroplasticity Adaptive Mechanism Influencing the Immune Response. A Hypothetical View-Part I. Front Endocrinol (Lausanne) 2019; 10:632. [PMID: 31616373 PMCID: PMC6763740 DOI: 10.3389/fendo.2019.00632] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 08/30/2019] [Indexed: 12/21/2022] Open
Abstract
The nervous system exerts a profound influence on the function of the immune system (IS), mainly through the sympathetic arm of the autonomic nervous system. In fact, the sympathetic nervous system richly innervates secondary lymphoid organs (SLOs) such as the spleen and lymph nodes. For decades, different research groups working in the field have consistently reported changes in the sympathetic innervation of the SLOs during the activation of the IS, which are characterized by a decreased noradrenergic activity and retraction of these fibers. Most of these groups interpreted these changes as a pathological phenomenon, referred to as "damage" or "injury" of the noradrenergic fibers. Some of them postulated that this "injury" was probably due to toxic effects of released endogenous mediators. Others, working on animal models of chronic stimulation of the IS, linked it to the very chronic nature of processes. Unlike these views, this first part of the present work reviews evidence which supports the hypothesis of a specific adaptive mechanism of neural plasticity from sympathetic fibers innervating SLOs, encompassing structural and functional changes of noradrenergic nerves. This plasticity mechanism would involve segmental retraction and degeneration of these fibers during the activation of the IS with subsequent regeneration once the steady state is recovered. The candidate molecules likely to mediate this phenomenon are also here introduced. The second part will extend this view as to the potential changes in sympathetic innervation likely to occur in inflamed non-lymphoid peripheral tissues and its possible immunological implications.
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Pilipović I, Stojić-Vukanić Z, Prijić I, Leposavić G. Role of the End-Point Mediators of Sympathoadrenal and Sympathoneural Stress Axes in the Pathogenesis of Experimental Autoimmune Encephalomyelitis and Multiple Sclerosis. Front Endocrinol (Lausanne) 2019; 10:921. [PMID: 31993021 PMCID: PMC6970942 DOI: 10.3389/fendo.2019.00921] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 12/17/2019] [Indexed: 12/12/2022] Open
Abstract
The role of stress effector systems in the initiation and progression of multiple sclerosis (MS) and experimental autoimmune encephalomyelitis (EAE), the most commonly used experimental model of MS, has strongly been suggested. To corroborate this notion, alterations in activity of the sympathoadrenal and sympathoneural axes of sympathoadrenal system (a major communication pathway between the central nervous system and the immune system), mirrored in altered release of their end-point mediators (adrenaline and noradrenaline, respectively), are shown to precede (in MS) and/or occur during development of MS and EAE in response to immune cell activation (in early phase of disease) and disease-related damage of sympathoadrenal system neurons and their projections (in late phase of disease). To add to the complexity, innate immunity cells and T-lymphocytes synthesize noradrenaline that may be implicated in a local autocrine/paracrine self-amplifying feed-forward loop to enhance myeloid-cell synthesis of proinflammatory cytokines and inflammatory injury. Furthermore, experimental manipulations targeting noradrenaline/adrenaline action are shown to influence clinical outcome of EAE, in a disease phase-specific manner. This is partly related to the fact that virtually all types of cells involved in the instigation and progression of autoimmune inflammation and target tissue damage in EAE/MS express functional adrenoceptors. Although catecholamines exert majority of immunomodulatory effects through β2-adrenoceptor, a role for α-adrenoceptors in EAE pathogenesis has also been indicated. In this review, we summarize all aforementioned aspects of immunopathogenetic action of catecholamines in EAE/MS as possibly important for designing new strategies targeting their action to prevent/mitigate autoimmune neuroinflammation and tissue damage.
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Affiliation(s)
- Ivan Pilipović
- Branislav Jankovic Immunology Research Centre, Institute of Virology, Torlak Vaccines and Sera, Belgrade, Serbia
| | - Zorica Stojić-Vukanić
- Department of Microbiology and Immunology, Faculty of Pharmacy, University of Belgrade, Belgrade, Serbia
| | - Ivana Prijić
- Branislav Jankovic Immunology Research Centre, Institute of Virology, Torlak Vaccines and Sera, Belgrade, Serbia
| | - Gordana Leposavić
- Department of Pathobiology, Faculty of Pharmacy, University of Belgrade, Belgrade, Serbia
- *Correspondence: Gordana Leposavić
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Interplay between sympathetic nervous system and inflammation in aseptic loosening of hip joint replacement. Sci Rep 2018; 8:16044. [PMID: 30375409 PMCID: PMC6207762 DOI: 10.1038/s41598-018-33360-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Accepted: 09/26/2018] [Indexed: 02/07/2023] Open
Abstract
Inflammation is a common symptom in joint disorders such as rheumatoid arthritis, osteoarthritis (OA) and implant aseptic loosening (AL). The sympathetic nervous system is well known to play a critical role in regulating inflammatory conditions, and imbalanced sympathetic activity has been observed in rheumatoid arthritis. In AL it is not clear whether the sympathetic nervous system is altered. In this study we evaluated the systemic and local profile of neuroimmune molecules involved in the interplay between the sympathetic nervous system and the periprosthetic inflammation in hip AL. Our results showed that periprosthetic inflammation does not trigger a systemic response of the sympathetic nervous system, but is mirrored rather by the impairment of the sympathetic activity locally in the hip joint. Moreover, macrophages were identified as key players in the local regulation of inflammation by the sympathetic nervous system in a process that is implant debris-dependent and entails the reduction of both adrenergic and Neuropetide Y (NPY)-ergic activity. Additionally, our results showed a downregulation of semaphorin 3A (SEMA3A) that may be part of the mechanism sustaining the periprosthetic inflammation. Overall, the local sympathetic nervous system emerges as a putative target to mitigate the inflammatory response to debris release and extending the lifespan of orthopedic implants.
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Seifert HA, Offner H. The splenic response to stroke: from rodents to stroke subjects. J Neuroinflammation 2018; 15:195. [PMID: 29970193 PMCID: PMC6030736 DOI: 10.1186/s12974-018-1239-9] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Accepted: 06/26/2018] [Indexed: 12/31/2022] Open
Abstract
Background Stroke is the fifth leading cause of death and the leading cause of long-term disability in the USA, costing $40.2 billion in direct and indirect costs. Globally, stroke is the second leading cause of death and has a higher prevalence in lower- and middle-income countries compared to high-income countries. The role of the spleen in stroke has been studied in rodent models of stroke and is seen as a major contributor to increased secondary neural injury after stroke. Splenectomy 2 weeks prior to ischemic and hemorrhagic stroke in mice and rats shows decreased infarct volumes. Additionally, the spleen decreases in size following stroke in rodents. Pro-inflammatory mediators are also increased in the spleen and subsequently the brain after stroke. These data in preclinical models of stroke have led stroke neurologists to look at the splenic response in stroke subjects. The outcomes of these studies suggest the spleen is responding in a similar manner in stroke subjects as it is in animal models of stroke. Conclusion Animal models demonstrating the detrimental role of the spleen in stroke are providing strong evidence of how the spleen is responding during stroke in human subjects. This indicates treatments targeting the splenic immune response in animals could provide useful targets and treatments for stroke subjects.
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Affiliation(s)
- Hilary A Seifert
- Neuroimmunology Research R&D-31 Veterans Affairs Portland Health Care System, 3710 SW US Veterans Hospital Rd, Portland, OR, 97239, USA.,Department of Neurology, Oregon Health and Science University, Portland, OR, USA
| | - Halina Offner
- Neuroimmunology Research R&D-31 Veterans Affairs Portland Health Care System, 3710 SW US Veterans Hospital Rd, Portland, OR, 97239, USA. .,Department of Neurology, Oregon Health and Science University, Portland, OR, USA. .,Department of Anesthesiology and Perioperative Medicine, Oregon Health and Science University, Portland, OR, USA.
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Doherty TA, White AA. Postural orthostatic tachycardia syndrome and the potential role of mast cell activation. Auton Neurosci 2018; 215:83-88. [PMID: 30033040 DOI: 10.1016/j.autneu.2018.05.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Revised: 05/03/2018] [Accepted: 05/03/2018] [Indexed: 12/18/2022]
Abstract
Though a sizeable amount of data connects mast cell activity to the neurologic system, less is known about the true clinical implications of this relationship. Even less is understood about treatment strategies in those with both allergic and neurologic complaints. This is particularly true in postural orthostatic tachycardia syndrome (POTS), a common type of dysautonomia, where patients are burdened by symptoms of orthostatic cerebral hypoperfusion and several other comorbidities that are likely influenced by autonomic tone. Some patients describe characteristic allergic symptoms, in the absence of typical IgE mediated triggers, and also improvement with traditional mast cell directed medications. Further work is necessary to determine whether these anecdotal observations are valid. The answer to this question will likely be addressed as the mechanisms of POTS are better characterized, which may include a phenotype with distinct mast cell involvement.
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Affiliation(s)
- Taylor A Doherty
- Division of Rheumatology, Allergy and Immunology, University of California, San Diego, United States
| | - Andrew A White
- Division of Allergy, Asthma and Immunology, Scripps Clinic, 3811 Valley Centre Drive, S99, San Diego, CA 92130, United States.
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Liu Z, Wang L, Lv Z, Zhou Z, Wang W, Li M, Yi Q, Qiu L, Song L. The Cholinergic and Adrenergic Autocrine Signaling Pathway Mediates Immunomodulation in Oyster Crassostrea gigas. Front Immunol 2018. [PMID: 29535711 PMCID: PMC5834419 DOI: 10.3389/fimmu.2018.00284] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
It is becoming increasingly clear that neurotransmitters impose direct influence on regulation of the immune process. Recently, a simple but sophisticated neuroendocrine-immune (NEI) system was identified in oyster, which modulated neural immune response via a "nervous-hemocyte"-mediated neuroendocrine immunomodulatory axis (NIA)-like pathway. In the present study, the de novo synthesis of neurotransmitters and their immunomodulation in the hemocytes of oyster Crassostrea gigas were investigated to understand the autocrine/paracrine pathway independent of the nervous system. After hemocytes were exposed to lipopolysaccharide (LPS) stimulation, acetylcholine (ACh), and norepinephrine (NE) in the cell supernatants, both increased to a significantly higher level (2.71- and 2.40-fold, p < 0.05) comparing with that in the control group. The mRNA expression levels and protein activities of choline O-acetyltransferase and dopamine β-hydroxylase in hemocytes which were involved in the synthesis of ACh and NE were significantly elevated at 1 h after LPS stimulation, while the activities of acetylcholinesterase and monoamine oxidase, two enzymes essential in the metabolic inactivation of ACh and NE, were inhibited. These results demonstrated the existence of the sophisticated intracellular machinery for the generation, release and inactivation of ACh and NE in oyster hemocytes. Moreover, the hemocyte-derived neurotransmitters could in turn regulate the mRNA expressions of tumor necrosis factor (TNF) genes, the activities of superoxide dismutase, catalase and lysosome, and hemocyte phagocytosis. The phagocytic activities of hemocytes, the mRNA expressions of TNF and the activities of key immune-related enzymes were significantly changed after the block of ACh and NE receptors with different kinds of antagonists, suggesting that autocrine/paracrine self-regulation was mediated by transmembrane receptors on hemocyte. The present study proved that oyster hemocyte could de novo synthesize and release cholinergic and adrenergic neurotransmitters, and the hemocyte-derived ACh/NE could then execute a negative regulation on hemocyte phagocytosis and synthesis of immune effectors with similar autocrine/paracrine signaling pathway identified in vertebrate macrophages. Findings in the present study demonstrated that the immune and neuroendocrine system evolved from a common origin and enriched our knowledge on the evolution of NEI system.
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Affiliation(s)
- Zhaoqun Liu
- Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, China.,Laboratory of Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China.,Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
| | - Lingling Wang
- Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, China.,Laboratory of Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Zhao Lv
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Zhi Zhou
- Key Laboratory of Tropical Biological Resources of Ministry of Education, Hainan University, Haikou, China
| | - Weilin Wang
- Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, China
| | - Meijia Li
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Qilin Yi
- Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, China
| | - Limei Qiu
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
| | - Linsheng Song
- Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, China.,Laboratory of Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
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Harwani SC. Macrophages under pressure: the role of macrophage polarization in hypertension. Transl Res 2018; 191:45-63. [PMID: 29172035 PMCID: PMC5733698 DOI: 10.1016/j.trsl.2017.10.011] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Revised: 10/05/2017] [Accepted: 10/30/2017] [Indexed: 02/06/2023]
Abstract
Hypertension is a multifactorial disease involving the nervous, renal, and cardiovascular systems. Macrophages are the most abundant and ubiquitous immune cells, placing them in a unique position to serve as key mediators between these components. The polarization of macrophages confers vast phenotypic and functional plasticity, allowing them to act as proinflammatory, homeostatic, and anti-inflammatory agents. Key differences between the M1 and M2 phenotypes, the 2 subsets at the extremes of this polarization spectrum, place macrophages at a juncture to mediate many mechanisms involved in the pathogenesis of hypertension. Neuronal and non-neuronal regulation of the immune system, that is, the "neuroimmuno" axis, plays an integral role in the polarization of macrophages. In hypertension, the neuroimmuno axis results in synchronization of macrophage mobilization from immune cell reservoirs and their chemotaxis, via increased expression of chemoattractants, to end organs critical in the development of hypertension. This complicated system is largely coordinated by the dichotomous actions of the autonomic neuronal and non-neuronal activation of cholinergic, adrenergic, and neurohormonal receptors on macrophages, leading to their ability to "switch" between phenotypes at sites of active inflammation. Data from experimental models and human studies are in concordance with each other and support a central role for macrophage polarization in the pathogenesis of hypertension.
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Affiliation(s)
- Sailesh C Harwani
- Department of Internal Medicine, Iowa City, IA; Center for Immunology and Immune Based Diseases, Iowa City, IA; Abboud Cardiovascular Research Center, Iowa City, Io.
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Laukova M, Vargovic P, Rokytova I, Manz G, Kvetnansky R. Repeated Stress Exaggerates Lipopolysaccharide-Induced Inflammatory Response in the Rat Spleen. Cell Mol Neurobiol 2017; 38:195-208. [DOI: 10.1007/s10571-017-0546-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Accepted: 08/31/2017] [Indexed: 01/03/2023]
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Roewe J, Higer M, Riehl DR, Gericke A, Radsak MP, Bosmann M. Neuroendocrine Modulation of IL-27 in Macrophages. THE JOURNAL OF IMMUNOLOGY 2017; 199:2503-2514. [PMID: 28835457 DOI: 10.4049/jimmunol.1700687] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Accepted: 07/31/2017] [Indexed: 12/11/2022]
Abstract
Heterodimeric IL-27 (p28/EBV-induced gene 3) is an important member of the IL-6/IL-12 cytokine family. IL-27 is predominantly synthesized by mononuclear phagocytes and exerts immunoregulatory functional activities on lymphocytic and nonlymphocytic cells during infection, autoimmunity or neoplasms. There is a great body of evidence on the bidirectional interplay between the autonomic nervous system and immune responses during inflammatory disorders, but so far IL-27 has not been defined as a part of these multifaceted neuroendocrine networks. In this study, we describe the role of catecholamines (as mediators of the sympathetic nervous system) related to IL-27 production in primary mouse macrophages. Noradrenaline and adrenaline dose-dependently suppressed the release of IL-27p28 in LPS/TLR4-activated macrophages, which was independent of α1 adrenoceptors. Instead, β2 adrenoceptor activation was responsible for mediating gene silencing of IL-27p28 and EBV-induced gene 3. The β2 adrenoceptor agonists formoterol and salbutamol mediated suppression of IL-27p28 production, when triggered by zymosan/TLR2, LPS/TLR4, or R848/TLR7/8 activation, but selectively spared the polyinosinic-polycytidylic acid/TLR3 pathway. Mechanistically, β2 adrenergic signaling reinforced an autocrine feedback loop of macrophage-derived IL-10 and this synergized with inhibition of the JNK pathway for limiting IL-27p28. The JNK inhibitors SP600125 and AEG3482 strongly decreased intracellular IL-27p28 in F4/80+CD11b+ macrophages. In endotoxic shock of C57BL/6J mice, pharmacologic activation of β2 adrenoceptors improved the severity of shock, including hypothermia and decreased circulating IL-27p28. Conversely, IL-27p28 was 2.7-fold increased by removal of the catecholamine-producing adrenal glands prior to endotoxic shock. These data suggest a novel role of the sympathetic neuroendocrine system for the modulation of IL-27-dependent acute inflammation.
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Affiliation(s)
- Julian Roewe
- Center for Thrombosis and Hemostasis, University Medical Center, Johannes Gutenberg University Mainz, 55131 Mainz, Germany
| | - Maximilian Higer
- Center for Thrombosis and Hemostasis, University Medical Center, Johannes Gutenberg University Mainz, 55131 Mainz, Germany
| | - Dennis R Riehl
- Center for Thrombosis and Hemostasis, University Medical Center, Johannes Gutenberg University Mainz, 55131 Mainz, Germany
| | - Adrian Gericke
- Department of Ophthalmology, University Medical Center, Johannes Gutenberg University Mainz, 55131 Mainz, Germany; and
| | - Markus P Radsak
- Third Department of Medicine, University Medical Center, Johannes Gutenberg University Mainz, 55131 Mainz, Germany
| | - Markus Bosmann
- Center for Thrombosis and Hemostasis, University Medical Center, Johannes Gutenberg University Mainz, 55131 Mainz, Germany;
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Marcet P, Santos N, Borlongan CV. When friend turns foe: central and peripheral neuroinflammation in central nervous system injury. ACTA ACUST UNITED AC 2017; 4:82-92. [PMID: 29670933 PMCID: PMC5901724 DOI: 10.20517/2347-8659.2017.07] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Injury to the central nervous system (CNS) is common, and though it has been well studied, many aspects of traumatic brain injury (TBI) and stroke are poorly understood. TBI and stroke are two pathologic events that can cause severe, immediate impact to the neurostructure and function of the CNS, which has been recognized recently to be exacerbated by the body’s own immune response. Although the brain damage induced by the initial trauma is most likely unsalvageable, the secondary immunologic deterioration of neural tissue gives ample opportunity for therapeutic strategists seeking to mitigate TBI’s secondary detrimental effects. The purpose of this paper is to highlight the cell death mechanisms associated with CNS injury with special emphasis on inflammation. The authors discuss sources of inflammation, and introduce the role of the spleen in the systemic response to inflammation after CNS injury.
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Affiliation(s)
- Paul Marcet
- Center of Excellence for Aging and Brain Repair, Department of Neurosurgery and Brain Repair, University of South Florida Morsani College of Medicine, Tampa, FL 33612, USA
| | - Nicole Santos
- Center of Excellence for Aging and Brain Repair, Department of Neurosurgery and Brain Repair, University of South Florida Morsani College of Medicine, Tampa, FL 33612, USA
| | - Cesar V Borlongan
- Center of Excellence for Aging and Brain Repair, Department of Neurosurgery and Brain Repair, University of South Florida Morsani College of Medicine, Tampa, FL 33612, USA
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Huan HB, Wen XD, Chen XJ, Wu L, Wu LL, Zhang L, Yang DP, Zhang X, Bie P, Qian C, Xia F. Sympathetic nervous system promotes hepatocarcinogenesis by modulating inflammation through activation of alpha1-adrenergic receptors of Kupffer cells. Brain Behav Immun 2017; 59:118-134. [PMID: 27585737 DOI: 10.1016/j.bbi.2016.08.016] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Revised: 08/23/2016] [Accepted: 08/27/2016] [Indexed: 02/07/2023] Open
Abstract
The sympathetic nervous system (SNS) is known to play a significant role in tumor initiation and metastasis. Hepatocellular carcinoma (HCC) frequently occurs in cirrhotic livers after chronic inflammation, and the SNS is hyperactive in advanced liver cirrhosis. However, it remains unclear whether the SNS promotes hepatocarcinogenesis by modulating chronic liver inflammation. In this study, a retrospective pathological analysis and quantification of sympathetic nerve fiber densities (tyrosine hydroxylase, TH+) in HCC patients, and diethylnitrosamine (DEN)-induced hepatocarcinogenesis in rats were performed. Our data showed that high density of sympathetic nerve fibers and α1-adrenergic receptors (ARs) of Kupffer cells (KCs) were associated with a poor prognosis of HCC. Sympathetic denervation or blocking of α1-ARs decreased DEN-induced HCC incidence and tumor development. In addition, synergistic effects of interleukin-6 (IL-6) and transforming growth factor-beta (TGF-β) in hepatocarcinogenesis were observed. The suppression of the SNS reduced IL-6 and TGF-β expression, which suppressed hepatocarcinogenesis, and KCs play a key role in this process. After the ablation of KCs, IL-6 and TGF-β expression and the development of HCC were inhibited. This study demonstrates that sympathetic innervation is crucial for hepatocarcinogenesis and that the SNS promotes hepatocarcinogenesis by activating α1-ARs of KCs to boost the activation of KCs and to maintain the inflammatory microenvironment. These results indicate that sympathetic denervation or α1-ARs blockage may represent novel treatment approaches for HCC.
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Affiliation(s)
- Hong-Bo Huan
- Institute of Hepatobiliary Surgery, Southwest Cancer Center, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Xu-Dong Wen
- Institute of Hepatobiliary Surgery, Southwest Cancer Center, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Xue-Jiao Chen
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University, and Key Laboratory of Tumor Immunology and Pathology of Ministry of Education China, Chongqing, China
| | - Lin Wu
- Institute of Hepatobiliary Surgery, Southwest Cancer Center, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Li-Li Wu
- Institute of Hepatobiliary Surgery, Southwest Cancer Center, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Liang Zhang
- Institute of Hepatobiliary Surgery, Southwest Cancer Center, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Da-Peng Yang
- Institute of Hepatobiliary Surgery, Southwest Cancer Center, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Xia Zhang
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University, and Key Laboratory of Tumor Immunology and Pathology of Ministry of Education China, Chongqing, China
| | - Ping Bie
- Institute of Hepatobiliary Surgery, Southwest Cancer Center, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Cheng Qian
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University, and Key Laboratory of Tumor Immunology and Pathology of Ministry of Education China, Chongqing, China
| | - Feng Xia
- Institute of Hepatobiliary Surgery, Southwest Cancer Center, Southwest Hospital, Third Military Medical University, Chongqing, China.
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Multidisciplinary Consideration of Potential Pathophysiologic Mechanisms of Paradoxical Erythema with Topical Brimonidine Therapy. Adv Ther 2016; 33:1885-1895. [PMID: 27562835 PMCID: PMC5083782 DOI: 10.1007/s12325-016-0404-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Indexed: 01/14/2023]
Abstract
Rosacea is a chronic inflammatory disease with transient and non-transient redness as key characteristics. Brimonidine is a selective α2-adrenergic receptor (AR) agonist approved for persistent facial erythema of rosacea based on significant efficacy and good safety data. The majority of patients treated with brimonidine report a benefit; however, there have been sporadic reports of worsening erythema after the initial response. A group of dermatologists, receptor physiology, and neuroimmunology scientists met to explore potential mechanisms contributing to side effects as well as differences in efficacy. We propose the following could contribute to erythema after application: (1) local inflammation and perivascular inflammatory cells with abnormally functioning ARs may lead to vasodilatation; (2) abnormal saturation and cells expressing different AR subtypes with varying ligand affinity; (3) barrier dysfunction and increased skin concentrations of brimonidine with increased actions at endothelial and presynaptic receptors, resulting in increased vasodilation; and (4) genetic predisposition and receptor polymorphism(s) leading to different smooth muscle responses. Approximately 80% of patients treated with brimonidine experience a significant improvement without erythema worsening as an adverse event. Attention to optimizing skin barrier function, setting patient expectations, and strategies to minimize potential problems may possibly reduce further the number of patients who experience side effects. FUNDING Galderma International S.A.S., Paris, France.
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Willis MS, Ilaiwy A, Montgomery MD, Simpson PC, Jensen BC. The alpha-1A adrenergic receptor agonist A61603 reduces cardiac polyunsaturated fatty acid and endocannabinoid metabolites associated with inflammation in vivo. Metabolomics 2016; 12:155. [PMID: 28533737 PMCID: PMC5437747 DOI: 10.1007/s11306-016-1097-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
INTRODUCTION Alpha-1-adrenergic receptors (α1-ARs) are G-protein coupled receptors (GPCRs) with three highly homologous subtypes (α1A, α1B, and α1D). Of these three subtypes, only the α1A and α1B are expressed in the heart. Multiple pre-clinical models of heart injury demonstrate cardioprotective roles for the α1A. Non-selective α1-AR activation promotes glycolysis in the heart, but the functional α1-AR subtype and broader metabolic effects have not been studied. OBJECTIVES Given the high metabolic demands of the heart and previous evidence indicating benefit from α1A activation, we chose to investigate the effects of α1A activation on the cardiac metabolome in vivo. METHODS Mice were treated for one week with a low, subpressor dose of A61603, a highly selective and potent α1A agonist. Cardiac tissue and serum were analyzed using a non-targeted metabolomics approach. RESULTS We identified previously unrecognized metabolic responses to α1A activation, most notably broad reduction in the abundance of polyunsaturated fatty acids (PUFAs) and endocannabinoids (ECs). CONCLUSION Given the well characterized roles of PUFAs and ECs in inflammatory pathways, these findings suggest a possible role for cardiac α1A-ARs in the regulation of inflammation and may offer novel insight into the mechanisms underlying the cardioprotective benefit of selective pharmacologic α1A activation.
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Affiliation(s)
- Monte S. Willis
- McAllister Heart Institute, University of North Carolina, Chapel Hill, NC USA
- Department of Pathology & Laboratory Medicine, University of North Carolina, Chapel Hill, NC USA
- Department of Pharmacology, University of North Carolina, Chapel Hill, NC USA
| | - Amro Ilaiwy
- Sarah W. Stedman Nutrition and Metabolism Center, Duke Molecular Physiology Institute, Duke University Medical Center, Durham, NC, USA
- Division of Endocrinology, Metabolism, and Nutrition, Department of Medicine, Duke University Medical Center, Durham, NC, USA
| | | | - Paul C. Simpson
- VA Medical Center and University of California, San Francisco, CA, USA
| | - Brian C. Jensen
- McAllister Heart Institute, University of North Carolina, Chapel Hill, NC USA
- Department of Internal Medicine, Division of Cardiology University of North Carolina, Chapel Hill, NC, USA
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Eton V, Sinyavskaya L, Langlois Y, Morin JF, Suissa S, Brassard P. Effect of Pre-Operative Use of Medications on the Risk of Surgical Site Infections in Patients Undergoing Cardiac Surgery. Surg Infect (Larchmt) 2016; 17:557-62. [DOI: 10.1089/sur.2016.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Vic Eton
- Center for Clinical Epidemiology, Department of Cardiac Surgery, Jewish General Hospital, Montreal, Quebec, Canada
| | - Liliya Sinyavskaya
- Center for Clinical Epidemiology, Department of Cardiac Surgery, Jewish General Hospital, Montreal, Quebec, Canada
| | - Yves Langlois
- Department of Medicine, McGill University, Montreal, Quebec, Canada
| | | | - Samy Suissa
- Center for Clinical Epidemiology, Department of Cardiac Surgery, Jewish General Hospital, Montreal, Quebec, Canada
- Department of Epidemiology, Biostatistics, and Occupational Health, McGill University, Montreal, Quebec, Canada
| | - Paul Brassard
- Center for Clinical Epidemiology, Department of Cardiac Surgery, Jewish General Hospital, Montreal, Quebec, Canada
- Department of Epidemiology, Biostatistics, and Occupational Health, McGill University, Montreal, Quebec, Canada
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