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Eraky AM, Yerramalla Y, Khan A, Mokhtar Y, Alamrosy M, Farag A, Wright A, Grounds M, Gregorich NM. Beta-Blockers as an Immunologic and Autonomic Manipulator in Critically Ill Patients: A Review of the Recent Literature. Int J Mol Sci 2024; 25:8058. [PMID: 39125627 PMCID: PMC11311757 DOI: 10.3390/ijms25158058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2024] [Revised: 07/20/2024] [Accepted: 07/23/2024] [Indexed: 08/12/2024] Open
Abstract
The autonomic nervous system plays a key role in maintaining body hemostasis through both the sympathetic and parasympathetic nervous systems. Sympathetic overstimulation as a reflex to multiple pathologies, such as septic shock, brain injury, cardiogenic shock, and cardiac arrest, could be harmful and lead to autonomic and immunologic dysfunction. The continuous stimulation of the beta receptors on immune cells has an inhibitory effect on these cells and may lead to immunologic dysfunction through enhancing the production of anti-inflammatory cytokines, such as interleukin-10 (IL-10), and inhibiting the production of pro-inflammatory factors, such as interleukin-1B IL-1B and tissue necrotizing factor-alpha (TNF-alpha). Sympathetic overstimulation-induced autonomic dysfunction may also happen due to adrenergic receptor insensitivity or downregulation. Administering anti-adrenergic medication, such as beta-blockers, is a promising treatment to compensate against the undesired effects of adrenergic surge. Despite many misconceptions about beta-blockers, beta-blockers have shown a promising effect in decreasing mortality in patients with critical illness. In this review, we summarize the recently published articles that have discussed using beta-blockers as a promising treatment to decrease mortality in critically ill patients, such as patients with septic shock, traumatic brain injury, cardiogenic shock, acute decompensated heart failure, and electrical storm. We also discuss the potential pathophysiology of beta-blockers in various types of critical illness. More clinical trials are encouraged to evaluate the safety and effectiveness of beta-blockers in improving mortality among critically ill patients.
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Affiliation(s)
- Akram M. Eraky
- Emergency Medicine, Freeman Health System, Joplin, MO 64804, USA; (A.W.); (M.G.)
- Medical Education Department, Kansas City University, Kansas City, MO 64106, USA
| | - Yashwanth Yerramalla
- Critical Care Medicine, Freeman Health System, Joplin, MO 64804, USA; (Y.Y.); (A.K.); (Y.M.)
| | - Adnan Khan
- Critical Care Medicine, Freeman Health System, Joplin, MO 64804, USA; (Y.Y.); (A.K.); (Y.M.)
| | - Yasser Mokhtar
- Critical Care Medicine, Freeman Health System, Joplin, MO 64804, USA; (Y.Y.); (A.K.); (Y.M.)
| | - Mostafa Alamrosy
- Cardiology and Angiology Unit, Department of Clinical and Experimental Internal Medicine, Medical Research Institute, Alexandria University, Alexandria 5422031, Egypt;
| | - Amr Farag
- Critical Care Medicine, Portsmouth University Hospital, Portsmouth PO6 3LY, UK;
| | - Alisha Wright
- Emergency Medicine, Freeman Health System, Joplin, MO 64804, USA; (A.W.); (M.G.)
| | - Matthew Grounds
- Emergency Medicine, Freeman Health System, Joplin, MO 64804, USA; (A.W.); (M.G.)
| | - Nicole M. Gregorich
- School of Medicine and Public Health, University of Wisconsin, Madison, WI 53726, USA;
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2
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Pasha A, Tondo A, Favre C, Calvani M. Inside the Biology of the β3-Adrenoceptor. Biomolecules 2024; 14:159. [PMID: 38397396 PMCID: PMC10887351 DOI: 10.3390/biom14020159] [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: 12/31/2023] [Revised: 01/24/2024] [Accepted: 01/27/2024] [Indexed: 02/25/2024] Open
Abstract
Since the first discovery in 1989, the β3-adrenoceptor (β3-AR) has gained great attention because it showed the ability to regulate many physiologic and metabolic activities, such as thermogenesis and lipolysis in brown and white adipose tissue, respectively (BAT, WAT), negative inotropic effects in cardiomyocytes, and relaxation of the blood vessels and the urinary bladder. The β3-AR has been suggested as a potential target for cancer treatment, both in adult and pediatric tumors, since under hypoxia its upregulation in the tumor microenvironment (TME) regulates stromal cell differentiation, tumor growth and metastases, signifying that its agonism/antagonism could be useful for clinical benefits. Promising results in cancer research have proposed the β3-AR being targeted for the treatment of many conditions, with some drugs, at present, undergoing phase II and III clinical trials. In this review, we report the scientific journey followed by the research from the β3-Ars' discovery, with focus on the β3-Ars' role in cancer initiation and progression that elects it an intriguing target for novel antineoplastic approaches. The overview highlights the great potential of the β3-AR, both in physiologic and pathologic conditions, with the intention to display the possible benefits of β3-AR modulation in cancer reality.
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Affiliation(s)
- Amada Pasha
- Department of Pediatric Hematology–Oncology, Meyer Children’s Hospital IRCCS, 50139 Florence, Italy; (A.P.); (A.T.); (C.F.)
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, 50139 Florence, Italy
| | - Annalisa Tondo
- Department of Pediatric Hematology–Oncology, Meyer Children’s Hospital IRCCS, 50139 Florence, Italy; (A.P.); (A.T.); (C.F.)
| | - Claudio Favre
- Department of Pediatric Hematology–Oncology, Meyer Children’s Hospital IRCCS, 50139 Florence, Italy; (A.P.); (A.T.); (C.F.)
| | - Maura Calvani
- Department of Pediatric Hematology–Oncology, Meyer Children’s Hospital IRCCS, 50139 Florence, Italy; (A.P.); (A.T.); (C.F.)
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3
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Loppi SH, Tavera-Garcia MA, Scholpa NE, Maiyo BK, Becktel DA, Morrison HW, Schnellmann RG, Doyle KP. Boosting Mitochondrial Biogenesis Diminishes Foam Cell Formation in the Post-Stroke Brain. Int J Mol Sci 2023; 24:16632. [PMID: 38068955 PMCID: PMC10706318 DOI: 10.3390/ijms242316632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 11/16/2023] [Accepted: 11/20/2023] [Indexed: 12/18/2023] Open
Abstract
Following ischemic stroke, the degradation of myelin and other cellular membranes surpasses the lipid-processing capabilities of resident microglia and infiltrating macrophages. This imbalance leads to foam cell formation in the infarct and areas of secondary neurodegeneration, instigating sustained inflammation and furthering neurological damage. Given that mitochondria are the primary sites of fatty acid metabolism, augmenting mitochondrial biogenesis (MB) may enhance lipid processing, curtailing foam cell formation and post-stroke chronic inflammation. Previous studies have shown that the pharmacological activation of the β2-adrenergic receptor (β2-AR) stimulates MB. Consequently, our study sought to discern the effects of intensified β2-AR signaling on MB, the processing of brain lipid debris, and neurological outcome using a mouse stroke model. To achieve this goal, aged mice were treated with formoterol, a long-acting β2-AR agonist, daily for two and eight weeks following stroke. Formoterol increased MB in the infarct region, modified fatty acid metabolism, and reduced foam cell formation. However, it did not reduce markers of post-stroke neurodegeneration or improve recovery. Although our findings indicate that enhancing MB in myeloid cells can aid in the processing of brain lipid debris after stroke, it is important to note that boosting MB alone may not be sufficient to significantly impact stroke recovery.
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Affiliation(s)
- Sanna H. Loppi
- Department of Immunobiology, College of Medicine, University of Arizona, Tucson, AZ 85719, USA; (S.H.L.); (M.A.T.-G.); (B.K.M.); (D.A.B.)
| | - Marco A. Tavera-Garcia
- Department of Immunobiology, College of Medicine, University of Arizona, Tucson, AZ 85719, USA; (S.H.L.); (M.A.T.-G.); (B.K.M.); (D.A.B.)
| | - Natalie E. Scholpa
- Department of Pharmacology and Toxicology, College of Pharmacy, University of Arizona, Tucson, AZ 85719, USA; (N.E.S.); (R.G.S.)
| | - Boaz K. Maiyo
- Department of Immunobiology, College of Medicine, University of Arizona, Tucson, AZ 85719, USA; (S.H.L.); (M.A.T.-G.); (B.K.M.); (D.A.B.)
| | - Danielle A. Becktel
- Department of Immunobiology, College of Medicine, University of Arizona, Tucson, AZ 85719, USA; (S.H.L.); (M.A.T.-G.); (B.K.M.); (D.A.B.)
| | | | - Rick G. Schnellmann
- Department of Pharmacology and Toxicology, College of Pharmacy, University of Arizona, Tucson, AZ 85719, USA; (N.E.S.); (R.G.S.)
- BIO5 Institute, College of Medicine, University of Arizona, Tucson, AZ 85719, USA
- R. Ken Coit Center for Longevity and Neurotherapeutics, College of Pharmacy, University of Arizona, Tucson, AZ 85719, USA
| | - Kristian P. Doyle
- Department of Immunobiology, College of Medicine, University of Arizona, Tucson, AZ 85719, USA; (S.H.L.); (M.A.T.-G.); (B.K.M.); (D.A.B.)
- BIO5 Institute, College of Medicine, University of Arizona, Tucson, AZ 85719, USA
- Department of Neurology, College of Medicine, University of Arizona, Tucson, AZ 85719, USA
- Arizona Center on Aging, College of Medicine, University of Arizona, Tucson, AZ 85719, USA
- Department of Psychology, College of Medicine, University of Arizona, Tucson, AZ 85719, USA
- Department of Neurosurgery, College of Medicine, University of Arizona, Tucson, AZ 85719, USA
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Wan R, Wang L, Duan Y, Zhu M, Li W, Zhao M, Yuan H, Xu K, Li Z, Zhang X, Yu G. ADRB2 inhibition combined with antioxidant treatment alleviates lung fibrosis by attenuating TGFβ/SMAD signaling in lung fibroblasts. Cell Death Discov 2023; 9:407. [PMID: 37923730 PMCID: PMC10624856 DOI: 10.1038/s41420-023-01702-9] [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: 05/03/2023] [Revised: 10/21/2023] [Accepted: 10/24/2023] [Indexed: 11/06/2023] Open
Abstract
Idiopathic pulmonary fibrosis is a progressive and fatal interstitial lung disease with a poor prognosis and limited therapeutic options, which is characterized by aberrant myofibroblast activation and pathological remodeling of the extracellular matrix, while the mechanism remains elusive. In the present investigation, we observed a reduction in ADRB2 expression within both IPF and bleomycin-induced fibrotic lung samples, as well as in fibroblasts treated with TGF-β1. ADRB2 inhibition blunted bleomycin-induced lung fibrosis. Blockage of the ADRB2 suppressed proliferation, migration, and invasion and attenuated TGF-β1-induced fibroblast activation. Conversely, the enhancement of ADRB2 expression or functionality proved capable of inducing fibroblast-to-myofibroblast differentiation. Subsequent mechanistic investigation revealed that inhibition of ADRB2 suppressed the activation of SMAD2/3 in lung fibroblasts and increased phos-SMAD2/3 proteasome degradation, and vice versa. Finally, ADRB2 inhibition combined with antioxidants showed increased efficacy in the therapy of bleomycin-induced lung fibrosis. In short, these data indicate that ADRB2 is involved in lung fibroblast differentiation, and targeting ADRB2 could emerge as a promising and innovative therapeutic approach for pulmonary fibrosis.
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Grants
- This work was supported by Ministry of Science and Technology, PR China, 2019YFE0119500, State Innovation Base for Pulmonary Fibrosis (111 Project), and Henan Project of Science and Technology, 212102310894, 222102310711, 232102310067, and 232102521025, Xinxiang Major Project 21ZD002.
- This work was supported by Henan Project of Science and Technology, 212102310894, 222102310711, 232102310067, and 232102521025, Xinxiang Major Project 21ZD002.
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Affiliation(s)
- Ruyan Wan
- State Key Laboratory Cell Differentiation and Regulation, Henan International Joint Laboratory of Pulmonary Fibrosis, Henan center for outstanding overseas scientists of pulmonary fibrosis, College of Life Science, Institute of Biomedical Science, Henan Normal University, Xinxiang, Henan, 453007, China
| | - Lan Wang
- State Key Laboratory Cell Differentiation and Regulation, Henan International Joint Laboratory of Pulmonary Fibrosis, Henan center for outstanding overseas scientists of pulmonary fibrosis, College of Life Science, Institute of Biomedical Science, Henan Normal University, Xinxiang, Henan, 453007, China
| | - Yudi Duan
- State Key Laboratory Cell Differentiation and Regulation, Henan International Joint Laboratory of Pulmonary Fibrosis, Henan center for outstanding overseas scientists of pulmonary fibrosis, College of Life Science, Institute of Biomedical Science, Henan Normal University, Xinxiang, Henan, 453007, China
| | - Miaomiao Zhu
- State Key Laboratory Cell Differentiation and Regulation, Henan International Joint Laboratory of Pulmonary Fibrosis, Henan center for outstanding overseas scientists of pulmonary fibrosis, College of Life Science, Institute of Biomedical Science, Henan Normal University, Xinxiang, Henan, 453007, China
| | - Wenwen Li
- State Key Laboratory Cell Differentiation and Regulation, Henan International Joint Laboratory of Pulmonary Fibrosis, Henan center for outstanding overseas scientists of pulmonary fibrosis, College of Life Science, Institute of Biomedical Science, Henan Normal University, Xinxiang, Henan, 453007, China
| | - Mengxia Zhao
- State Key Laboratory Cell Differentiation and Regulation, Henan International Joint Laboratory of Pulmonary Fibrosis, Henan center for outstanding overseas scientists of pulmonary fibrosis, College of Life Science, Institute of Biomedical Science, Henan Normal University, Xinxiang, Henan, 453007, China
| | - Hongmei Yuan
- State Key Laboratory Cell Differentiation and Regulation, Henan International Joint Laboratory of Pulmonary Fibrosis, Henan center for outstanding overseas scientists of pulmonary fibrosis, College of Life Science, Institute of Biomedical Science, Henan Normal University, Xinxiang, Henan, 453007, China
| | - Kai Xu
- State Key Laboratory Cell Differentiation and Regulation, Henan International Joint Laboratory of Pulmonary Fibrosis, Henan center for outstanding overseas scientists of pulmonary fibrosis, College of Life Science, Institute of Biomedical Science, Henan Normal University, Xinxiang, Henan, 453007, China
| | - Zhongzheng Li
- State Key Laboratory Cell Differentiation and Regulation, Henan International Joint Laboratory of Pulmonary Fibrosis, Henan center for outstanding overseas scientists of pulmonary fibrosis, College of Life Science, Institute of Biomedical Science, Henan Normal University, Xinxiang, Henan, 453007, China
| | - Xiao Zhang
- Zhengzhou 101 Middle School, Zhengzhou, Henan, 450000, China
| | - Guoying Yu
- State Key Laboratory Cell Differentiation and Regulation, Henan International Joint Laboratory of Pulmonary Fibrosis, Henan center for outstanding overseas scientists of pulmonary fibrosis, College of Life Science, Institute of Biomedical Science, Henan Normal University, Xinxiang, Henan, 453007, China.
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5
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Ben-Shalom N, Sandbank E, Abramovitz L, Hezroni H, Levine T, Trachtenberg E, Fogel N, Mor M, Yefet R, Stoler-Barak L, Hagin D, Nakai A, Noda M, Suzuki K, Shulman Z, Ben-Eliyahu S, Freund NT. β2-adrenergic signaling promotes higher-affinity B cells and antibodies. Brain Behav Immun 2023; 113:66-82. [PMID: 37369341 DOI: 10.1016/j.bbi.2023.06.020] [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: 03/16/2023] [Revised: 05/28/2023] [Accepted: 06/22/2023] [Indexed: 06/29/2023] Open
Abstract
Stress-induced β2-adrenergic receptor (β2AR) activation in B cells increases IgG secretion; however, the impact of this activation on antibody affinity and the underlying mechanisms remains unclear. In the current study, we demonstrate that stress in mice following ovalbumin (OVA) or SARS-CoV-2 RBD immunization significantly increases both serum and surface-expressed IgG binding to the immunogen, while concurrently reducing surface IgG expression and B cell clonal expansion. These effects were abolished by pharmacological β2AR blocking or when the experiments were conducted in β2AR -/- mice. In the second part of our study, we used single B cell sorting to characterize the monoclonal antibodies (mAbs) generated following β2AR activation in cultured RBD-stimulated B cells from convalescent SARS-CoV-2 donors. Ex vivo β2AR activation increased the affinities of the produced anti-RBD mAbs by 100-fold compared to mAbs produced by the same donor control cultures. Consistent with the mouse experiments, β2AR activation reduced both surface IgG levels and the frequency of expanded clones. mRNA sequencing revealed a β2AR-dependent upregulation of the PI3K pathway and B cell receptor (BCR) signaling through AKT phosphorylation, as well as an increased B cell motility. Overall, our study demonstrates that stress-mediated β2AR activation drives changes in B cells associated with BCR activation and higher affinity antibodies.
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Affiliation(s)
- Noam Ben-Shalom
- Department of Clinical Microbiology and Immunology, Faculty of Medicine, Tel Aviv University, 6997801 Israel
| | - Elad Sandbank
- The School of Psychological Sciences, Tel Aviv University, 6997801, Israel
| | - Lilach Abramovitz
- Department of Clinical Microbiology and Immunology, Faculty of Medicine, Tel Aviv University, 6997801 Israel
| | - Hadas Hezroni
- Department of Systems Immunology, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Talia Levine
- The School of Psychological Sciences, Tel Aviv University, 6997801, Israel
| | - Estherina Trachtenberg
- The Sagol School of Neurosciences, Gordon Faculty of Social Sciences, Tel Aviv University, Israel
| | - Nadav Fogel
- The School of Psychological Sciences, Tel Aviv University, 6997801, Israel
| | - Michael Mor
- Department of Clinical Microbiology and Immunology, Faculty of Medicine, Tel Aviv University, 6997801 Israel
| | - Ron Yefet
- Department of Clinical Microbiology and Immunology, Faculty of Medicine, Tel Aviv University, 6997801 Israel
| | - Liat Stoler-Barak
- Department of Systems Immunology, Weizmann Institute of Science, Rehovot 76100, Israel
| | - David Hagin
- Department of Clinical Microbiology and Immunology, Faculty of Medicine, Tel Aviv University, 6997801 Israel; Allergy and Clinical Immunology Unit, Department of Medicine, Tel Aviv Sourasky Medical Center, 623906, Israel
| | - Akiko Nakai
- Laboratory of Immune Response Dynamics, WPI Immunology Frontier Research Center, Osaka University, Osaka 565-0871, Japan; Department of Immune Response Dynamics, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka 565-0871, Japan
| | - Masaki Noda
- Center for Stem Cell and Regenerative Medicine, Tokyo Medical and Dental University, Tokyo 113-8510, Japan
| | - Kazuhiro Suzuki
- Laboratory of Immune Response Dynamics, WPI Immunology Frontier Research Center, Osaka University, Osaka 565-0871, Japan; Department of Immune Response Dynamics, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka 565-0871, Japan; Center for Infectious Disease Education and Research, Osaka University, Suita, Osaka 565-0871, Japan
| | - Ziv Shulman
- Department of Systems Immunology, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Shamgar Ben-Eliyahu
- The School of Psychological Sciences, Tel Aviv University, 6997801, Israel; The Sagol School of Neurosciences, Gordon Faculty of Social Sciences, Tel Aviv University, Israel.
| | - Natalia T Freund
- Department of Clinical Microbiology and Immunology, Faculty of Medicine, Tel Aviv University, 6997801 Israel.
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Bombarda-Rocha V, Silva D, Badr-Eddine A, Nogueira P, Gonçalves J, Fresco P. Challenges in Pharmacological Intervention in Perilipins (PLINs) to Modulate Lipid Droplet Dynamics in Obesity and Cancer. Cancers (Basel) 2023; 15:4013. [PMID: 37568828 PMCID: PMC10417315 DOI: 10.3390/cancers15154013] [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: 06/29/2023] [Revised: 08/01/2023] [Accepted: 08/04/2023] [Indexed: 08/13/2023] Open
Abstract
Perilipins (PLINs) are the most abundant proteins in lipid droplets (LD). These LD-associated proteins are responsible for upgrading LD from inert lipid storage structures to fully functional organelles, fundamentally integrated in the lipid metabolism. There are five distinct perilipins (PLIN1-5), each with specific expression patterns and metabolic activation, but all capable of regulating the activity of lipases on LD. This plurality creates a complex orchestrated mechanism that is directly related to the healthy balance between lipogenesis and lipolysis. Given the essential role of PLINs in the modulation of the lipid metabolism, these proteins can become interesting targets for the treatment of lipid-associated diseases. Since reprogrammed lipid metabolism is a recognized cancer hallmark, and obesity is a known risk factor for cancer and other comorbidities, the modulation of PLINs could either improve existing treatments or create new opportunities for the treatment of these diseases. Even though PLINs have not been, so far, directly considered for pharmacological interventions, there are many established drugs that can modulate PLINs activity. Therefore, the aim of this study is to assess the involvement of PLINs in diseases related to lipid metabolism dysregulation and whether PLINs can be viewed as potential therapeutic targets for cancer and obesity.
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Affiliation(s)
- Victória Bombarda-Rocha
- Laboratory of Pharmacology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal; (V.B.-R.); (D.S.); (A.B.-E.); (P.N.); (P.F.)
- UCIBIO–Applied Molecular Biosciences Unit, Associate Laboratory i4HB, Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
| | - Dany Silva
- Laboratory of Pharmacology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal; (V.B.-R.); (D.S.); (A.B.-E.); (P.N.); (P.F.)
- UCIBIO–Applied Molecular Biosciences Unit, Associate Laboratory i4HB, Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
| | - Allal Badr-Eddine
- Laboratory of Pharmacology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal; (V.B.-R.); (D.S.); (A.B.-E.); (P.N.); (P.F.)
| | - Patrícia Nogueira
- Laboratory of Pharmacology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal; (V.B.-R.); (D.S.); (A.B.-E.); (P.N.); (P.F.)
- UCIBIO–Applied Molecular Biosciences Unit, Associate Laboratory i4HB, Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
| | - Jorge Gonçalves
- Laboratory of Pharmacology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal; (V.B.-R.); (D.S.); (A.B.-E.); (P.N.); (P.F.)
- UCIBIO–Applied Molecular Biosciences Unit, Associate Laboratory i4HB, Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
| | - Paula Fresco
- Laboratory of Pharmacology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal; (V.B.-R.); (D.S.); (A.B.-E.); (P.N.); (P.F.)
- UCIBIO–Applied Molecular Biosciences Unit, Associate Laboratory i4HB, Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
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7
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Târtea EA, Petrescu M, Udriștoiu I, Gheorman V, Biciușcă V, Petrescu AR, Ciurea AM, Vere CC. Clinical Outcomes Depending on Sympathetic Innervation in Pancreatic Cancer. Cancers (Basel) 2023; 15:cancers15113040. [PMID: 37297000 DOI: 10.3390/cancers15113040] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 05/26/2023] [Accepted: 05/31/2023] [Indexed: 06/12/2023] Open
Abstract
BACKGROUND The aim of our study was to evaluate sympathetic neuronal remodeling in patients with pancreatic cancer, together with its correlation with clinical outcomes. METHODS In this descriptive, retrospective study, we analyzed pancreatic cancer specimens and peritumoral pancreatic tissue from 122 patients. We also investigated tyrosine hydroxylase immunoreactivity for the analysis of sympathetic nerve fibers and beta 2 adrenoreceptors immunoreactivity. To investigate the potential interaction between tyrosine hydroxylase (TH), beta 2 adrenoreceptors (B2A) immunoreactivity, and clinicopathological outcomes, we used the median to classify each case as TH+, respectively, B2A+ (if it presented a value higher than the median). RESULTS Firstly, the overall survival was analyzed according to TH and B2A immunoreactivity, in both intratumoral and peritumoral tissue. Only B2A immunoreactivity in the peritumoral pancreatic tissue influenced overall survival at 5 years of follow-up; thus, B2A+ patients recorded a 5-year survival of only 3% compared to B2A- patients who recorded an overall survival at 5 years of follow-up of 14% (HR = 1.758, 95% CI of ratio 1.297 to 2.938, p = 0.0004). Additionally, the increased immunoreactivity of B2A in the peritumoral tissue was also associated with other factors of poor prognosis, such as moderately or poorly differentiated tumors, the absence of response to first-line chemotherapy, or metastatic disease. CONCLUSIONS The increased immunoreactivity of beta 2 adrenoreceptors in pancreatic peritumoral tissue represents a poor prognostic factor in pancreatic cancer.
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Affiliation(s)
- Elena-Anca Târtea
- Department of Neurology, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Mihai Petrescu
- Department of Psychiatry, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Ion Udriștoiu
- Department of Psychiatry, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Victor Gheorman
- Department of Psychiatry, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Viorel Biciușcă
- Department of Internal Medicine, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | | | - Ana-Maria Ciurea
- Department of Oncology, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Cristin Constantin Vere
- Department of Gastroenterology, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
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8
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Panganiban RAM, Yang Z, Sun M, Park CY, Kasahara DI, Schaible N, Krishnan R, Kho AT, Israel E, Hershenson MB, Weiss ST, Himes BE, Fredberg JJ, Tantisira KG, Shore SA, Lu Q. Antagonizing cholecystokinin A receptor in the lung attenuates obesity-induced airway hyperresponsiveness. Nat Commun 2023; 14:47. [PMID: 36599824 PMCID: PMC9813361 DOI: 10.1038/s41467-022-35739-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Accepted: 12/21/2022] [Indexed: 01/06/2023] Open
Abstract
Obesity increases asthma prevalence and severity. However, the underlying mechanisms are poorly understood, and consequently, therapeutic options for asthma patients with obesity remain limited. Here we report that cholecystokinin-a metabolic hormone best known for its role in signaling satiation and fat metabolism-is increased in the lungs of obese mice and that pharmacological blockade of cholecystokinin A receptor signaling reduces obesity-associated airway hyperresponsiveness. Activation of cholecystokinin A receptor by the hormone induces contraction of airway smooth muscle cells. In vivo, cholecystokinin level is elevated in the lungs of both genetically and diet-induced obese mice. Importantly, intranasal administration of cholecystokinin A receptor antagonists (proglumide and devazepide) suppresses the airway hyperresponsiveness in the obese mice. Together, our results reveal an unexpected role for cholecystokinin in the lung and support the repurposing of cholecystokinin A receptor antagonists as a potential therapy for asthma patients with obesity.
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Affiliation(s)
- Ronald Allan M Panganiban
- Program in Molecular and Integrative Physiological Sciences, Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, 02115, USA
| | - Zhiping Yang
- Program in Molecular and Integrative Physiological Sciences, Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, 02115, USA
| | - Maoyun Sun
- Program in Molecular and Integrative Physiological Sciences, Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, 02115, USA
| | - Chan Young Park
- Program in Molecular and Integrative Physiological Sciences, Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, 02115, USA
| | - David I Kasahara
- Program in Molecular and Integrative Physiological Sciences, Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, 02115, USA
| | - Niccole Schaible
- Emergency Medicine, Beth Israel Deaconess Medical Center, Boston, MA, 02115, USA
| | - Ramaswamy Krishnan
- Emergency Medicine, Beth Israel Deaconess Medical Center, Boston, MA, 02115, USA
| | - Alvin T Kho
- Computational Health informatics Program, Boston Children's Hospital, Boston, MA, 02115, USA
| | - Elliot Israel
- Asthma Research Center, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
| | - Marc B Hershenson
- Department of Pediatrics and Department of Molecular and Integrative Physiology, University of Michigan Medical School, Ann Arbor, MI, 48109, USA
| | - Scott T Weiss
- Channing Division of Network Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
| | - Blanca E Himes
- Department of Biostatistics, Epidemiology and Informatics, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Jeffrey J Fredberg
- Program in Molecular and Integrative Physiological Sciences, Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, 02115, USA
| | - Kelan G Tantisira
- Division of Pediatric Respiratory Medicine, University of California San Diego and Rady Children's Hospital, San Diego, CA, 92123, USA
| | - Stephanie A Shore
- Program in Molecular and Integrative Physiological Sciences, Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, 02115, USA
| | - Quan Lu
- Program in Molecular and Integrative Physiological Sciences, Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, 02115, USA.
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9
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Gatica S, Aravena D, Echeverría C, Santibanez JF, Riedel CA, Simon F. Effects of Adrenergic Receptor Stimulation on Human Hemostasis: A Systematic Review. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2023; 1408:49-63. [PMID: 37093421 DOI: 10.1007/978-3-031-26163-3_3] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/25/2023]
Abstract
Catecholamine stimulation over adrenergic receptors results in a state of hypercoagulability. Chronic stress involves the release and increase in circulation of catecholamines and other stress related hormones. Numerous observational studies in human have related stressful scenarios to several coagulation variables, but controlled stimulation with agonists or antagonists to adrenergic receptors are scarce. This systematic review is aimed at presenting an updated appraisal of the effect of adrenergic receptor modulation on variables related to human hemostasis by systematically reviewing the effect of adrenergic receptor-targeting drugs on scale variables related to hemostasis. By searching 3 databases for articles published between January 1st 2011 and February 16th, 2022 reporting effects on coagulation parameters from stimulation with α- or β-adrenergic receptor targeting drugs in humans regardless of baseline condition, excluding records different from original research and those not addressing the main aim of this systematic review. Risk of bias assessed using the Revised Cochrane risk-of-bias tool for randomized trials (RoB 2). Tables describing a pro-thrombotic anti-fibrinolytic state induced after β-adrenergic receptor agonist stimulation and the opposite after α1-, β-adrenergic receptor antagonist stimulation were synthesized from 4 eligible records by comparing hemostasis-related variables to their baseline. Notwithstanding this low number of records, experimental interventions included were sound and mostly unbiased, results were coherent, and outcomes were biologically plausible. In summary, this systematic review provides a critical systematic assessment and an updated elaboration, and its shortcomings highlight the need for further investigation in the field of hematology.
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Affiliation(s)
- Sebastian Gatica
- Laboratory of Integrative Physiopathology, Faculty of Life Sciences, Universidad Andres Bello, Santiago, Chile.
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile.
| | - Diego Aravena
- Laboratory of Integrative Physiopathology, Faculty of Life Sciences, Universidad Andres Bello, Santiago, Chile
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
| | - Cesar Echeverría
- Laboratory of Molecular Biology, Nanomedicine and Genomics, Faculty of Medicine, University of Atacama, Copiapo, Chile
| | - Juan F Santibanez
- Institute for Medical Research, National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
- Integrative Center for Biology and Applied Chemistry (CIBQA), Bernardo O'Higgins University, Santiago, Chile
| | - Claudia A Riedel
- Laboratory of Integrative Physiopathology, Faculty of Life Sciences, Universidad Andres Bello, Santiago, Chile
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
| | - Felipe Simon
- Laboratory of Integrative Physiopathology, Faculty of Life Sciences, Universidad Andres Bello, Santiago, Chile.
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile.
- Millennium Nucleus of Ion Channel-Associated Diseases, Universidad de Chile, Santiago, Chile.
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10
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Cheng M, Shi YL, Shang PP, Chen YJ, Xu YD. Inhibitory Effect of S100A11 on Airway Smooth Muscle Contraction and Airway Hyperresponsiveness. Curr Med Sci 2022; 42:333-340. [PMID: 35419674 DOI: 10.1007/s11596-022-2559-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 05/06/2021] [Indexed: 12/14/2022]
Abstract
OBJECTIVE S100A11 is a member of the S100 calcium-binding protein family and has intracellular and extracellular regulatory activities. We previously reported that S100A11 was differentially expressed in the respiratory tracts of asthmatic rats as compared with normal controls. Here, we aimed to analyze the potential of S100A11 to regulate both allergen-induced airway hyperresponsiveness (AHR) as well as acetylcholine (ACh)-induced hypercontractility of airway smooth muscle (ASM) and contraction of ASM cells (ASMCs). METHODS Purified recombinant rat S100A11 protein (rS100A11) was administered to OVA-sensitized and challenged rats and then the AHR of animals was measured. The relaxation effects of rS100A11 on ASM were detected using isolated tracheal rings and primary ASMCs. The expression levels of un-phosphorylated myosin light chain (MLC) and phosphorylated MLC in ASMCs were analyzed using Western blotting. RESULTS Treatment with rS100A11 attenuated AHR in the rats. ASM contraction assays showed that rS100A11 reduced the contractile responses of isolated tracheal rings and primary ASMCs treated with ACh. In addition, rS100A11 markedly decreased the ACh-induced phosphorylation of the myosin light chain in ASMCs. Moreover, rS100A11 also suppressed the contractile response of tracheal rings in calcium-free buffer medium. CONCLUSION These results indicate that S100A11 protein can relieve AHR by relaxing ASM independently of extracellular calcium. Our data support the idea that S100A11 is a potential therapeutic target for reducing airway resistance in asthma patients.
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Affiliation(s)
- Mi Cheng
- Shanghai Research Institute of Acupuncture and Meridian, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200030, China
| | - Yang-Lin Shi
- Shanghai Research Institute of Acupuncture and Meridian, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200030, China
| | - Pan-Pan Shang
- Shanghai Research Institute of Acupuncture and Meridian, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200030, China
| | - Yan-Jiao Chen
- Shanghai Research Institute of Acupuncture and Meridian, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200030, China
| | - Yu-Dong Xu
- Shanghai Research Institute of Acupuncture and Meridian, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200030, China.
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11
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Shimamoto S, Nakashima K, Nishikoba N, Kohrogi R, Ohtsuka A, Fujimura S, Ijiri D. Suppression of FoxO1 mRNA by β 2 -adrenoceptor-cAMP signaling through miR-374b-5p and miR-7a-1-3p in C2C12 myotubes. FEBS Open Bio 2022; 12:627-637. [PMID: 35038382 PMCID: PMC8886325 DOI: 10.1002/2211-5463.13368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 12/21/2021] [Accepted: 01/13/2022] [Indexed: 11/09/2022] Open
Abstract
β2 -Adrenoceptor (β2 -AR) signaling decreases the transcriptional activity of forkhead box O (FoxO), but the underlying mechanisms remain incompletely understood. Here, we investigated how β2 -AR signaling regulates the protein abundance of FoxO and its transcriptional activity in skeletal muscle. We observed that stimulation of β2 -AR with its selective agonist, clenbuterol, rapidly decreased FoxO1 mRNA expression, and this was accompanied by a decrease in either FoxO1 protein level or FoxO transcriptional activity. We subsequently observed that miR-374b-5p and miR-7a-1-3p were rapidly upregulated in response to β2 -AR stimulation. Transfection with mimics of either miRNA successfully decreased FoxO1 mRNA. Moreover, because β2 -AR stimulation increased cAMP concentration, pretreatment with an adenylyl cyclase inhibitor canceled out these effects of β2 -AR stimulation. These results suggest that β2 -AR stimulation results in rapid upregulation of miR-374b-5p and miR-7a-1-3p in myotubes, which in turn results in a decrease in FoxO1 mRNA expression via the β2 -AR-cAMP signaling pathway.
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Affiliation(s)
- Saki Shimamoto
- Department of Agricultural Sciences and Natural Resources, Kagoshima University, 1-21-24 Korimoto, Kagoshima, 890-0065, Japan.,The United Graduate School of Agricultural Sciences, Kagoshima University, 1-21-24 Korimoto, Kagoshima, 890-0065, Japan.,Graduate School of Science and Technology, Niigata University, 8050 Ikarashi 2-nocho, Niigata, 950-2181, Japan
| | - Kazuki Nakashima
- Division of Meat Animal and Poultry Research, Institute of Livestock and Grassland Science, NARO, Ikenodai, Tsukuba, 305-0901, Japan
| | - Nao Nishikoba
- Department of Agricultural Sciences and Natural Resources, Kagoshima University, 1-21-24 Korimoto, Kagoshima, 890-0065, Japan
| | - Rukana Kohrogi
- Department of Agricultural Sciences and Natural Resources, Kagoshima University, 1-21-24 Korimoto, Kagoshima, 890-0065, Japan
| | - Akira Ohtsuka
- Department of Agricultural Sciences and Natural Resources, Kagoshima University, 1-21-24 Korimoto, Kagoshima, 890-0065, Japan.,The United Graduate School of Agricultural Sciences, Kagoshima University, 1-21-24 Korimoto, Kagoshima, 890-0065, Japan
| | - Shinobu Fujimura
- Graduate School of Science and Technology, Niigata University, 8050 Ikarashi 2-nocho, Niigata, 950-2181, Japan
| | - Daichi Ijiri
- Department of Agricultural Sciences and Natural Resources, Kagoshima University, 1-21-24 Korimoto, Kagoshima, 890-0065, Japan.,The United Graduate School of Agricultural Sciences, Kagoshima University, 1-21-24 Korimoto, Kagoshima, 890-0065, Japan
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12
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The Adrenergic Nerve Network in Cancer. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1329:271-294. [PMID: 34664245 DOI: 10.1007/978-3-030-73119-9_15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/16/2023]
Abstract
The central and autonomic nervous systems interact and converge to build up an adrenergic nerve network capable of promoting cancer. While a local adrenergic sympathetic innervation in peripheral solid tumors influences cancer and stromal cell behavior, the brain can participate to the development of cancer through an intermixed dysregulation of the sympathoadrenal system, adrenergic neurons, and the hypothalamo-pituitary-adrenal axis. A deeper understanding of the adrenergic nerve circuitry within the brain and tumors and its interactions with the microenvironment should enable elucidation of original mechanisms of cancer and novel therapeutic strategies.
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13
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Mahmood MI, Yamashita T. Influence of Lipid Bilayer on the GPCR Structure: Comparison of All-Atom Lipid Force Fields. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20210244] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Md. Iqbal Mahmood
- Laboratory for Systems Biology and Medicine, Research Center for Advanced Science and Technology, the University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8904, Japan
| | - Takefumi Yamashita
- Laboratory for Systems Biology and Medicine, Research Center for Advanced Science and Technology, the University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8904, Japan
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14
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Broncel A, Bocian R, Kłos-Wojtczak P, Konopacki J. Noradrenergic Profile of Hippocampal Formation Theta Rhythm in Anaesthetized Rats. Neuroscience 2021; 473:13-28. [PMID: 34418519 DOI: 10.1016/j.neuroscience.2021.08.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 08/11/2021] [Accepted: 08/12/2021] [Indexed: 10/20/2022]
Abstract
The present study was undertaken to identify the noradrenergic receptors underlying the production of hippocampal formation (HPC) type 2 theta rhythm. The experiments were performed on urethanized rats wherein type 2 theta is the only rhythm present. In three independent stages of experiments, the effects of noradrenaline (NE) and selective noradrenergic α and β agonists and antagonists were tested. We indicate that the selective activation of three HPC noradrenergic receptors, α1, α2 and β1, induced a similar effect (i.e., inhibition) on type 2 theta rhythm. The remaining HPC β2 and β3 noradrenergic receptors do not seem to be directly involved in the pharmacological mechanism responsible for the suppression of theta rhythm in anaesthetized rats. Obtained results provide evidence for the suppressant effect of exogenous NE on HPC type 2 theta rhythm and show the crucial role of α1, α2 and β1 noradrenergic receptors in the modulation of HPC mechanisms of oscillations and synchrony. This finding is in contrast to the effects of endogenous NE produced by electrical stimulation of the locus coeruleus (LC) and procaine injection into the LC (Broncel et al., 2020).
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Affiliation(s)
- A Broncel
- Neuromedical, Research Department, Natolin 15, 92-701 Lodz, Poland.
| | - R Bocian
- Department of Neurobiology, Faculty of Biology and Environmental Protection, The University of Lodz, Pomorska St. No 141/143, 90-236 Lodz, Poland.
| | - P Kłos-Wojtczak
- Neuromedical, Research Department, Natolin 15, 92-701 Lodz, Poland.
| | - J Konopacki
- Department of Neurobiology, Faculty of Biology and Environmental Protection, The University of Lodz, Pomorska St. No 141/143, 90-236 Lodz, Poland.
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15
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Koh M, Takahashi T, Kurokawa Y, Kobayashi T, Saito T, Ishida T, Serada S, Fujimoto M, Naka T, Wada N, Yamashita K, Tanaka K, Miyazaki Y, Makino T, Nakajima K, Yamasaki M, Eguchi H, Doki Y. Propranolol suppresses gastric cancer cell growth by regulating proliferation and apoptosis. Gastric Cancer 2021; 24:1037-1049. [PMID: 33782804 DOI: 10.1007/s10120-021-01184-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Accepted: 03/11/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND Despite improvements in gastric cancer treatment, the mortality associated with advanced gastric cancer is still high. The activation of β-adrenergic receptors by stress has been shown to accelerate the progression of several cancers. Accordingly, increasing evidence suggests that the blockade of β-adrenergic signaling can inhibit tumor growth. However, the effect of β-blockers, which target several signaling pathways, on gastric cancer remains to be elucidated. This study aimed to investigate the anti-tumor effects of propranolol, a non-selective β-blocker, on gastric cancer. METHODS We explored the effect of propranolol on the MKN45 and NUGC3 gastric cancer cell lines. Its efficacy and the mechanism by which it exerts anti-tumor effects were examined using several assays (e.g., cell proliferation, cell cycle, apoptosis, and wound healing) and a xenograft mouse model. RESULTS We found that propranolol inhibited tumor growth and induced G1-phase cell cycle arrest and apoptosis in both cell lines. Propranolol also decreased the expression of phosphorylated CREB-ATF and MEK-ERK pathways; suppressed the expression of matrix metalloproteinase-2, 9 and vascular endothelial growth factor; and inhibited gastric cancer cell migration. In the xenograft mouse model, propranolol treatment significantly inhibited tumor growth, and immunohistochemistry revealed that propranolol led to the suppression of proliferation and induction of apoptosis. CONCLUSIONS Propranolol inhibits the proliferation of gastric cancer cells by inducing G1-phase cell cycle arrest and apoptosis. These findings indicate that propranolol might have an opportunity as a new drug for gastric cancer.
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Affiliation(s)
- Masahiro Koh
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Tsuyoshi Takahashi
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan.
| | - Yukinori Kurokawa
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Teruyuki Kobayashi
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Takuro Saito
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Tomo Ishida
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Satoshi Serada
- Center for Intractable Disease, Kochi University, Nankoku, Japan
| | - Minoru Fujimoto
- Center for Intractable Disease, Kochi University, Nankoku, Japan
| | - Tetsuji Naka
- Center for Intractable Disease, Kochi University, Nankoku, Japan
| | - Noriko Wada
- Department of Surgery, Ikeda City Hospital, Ikeda, Japan
| | - Kotaro Yamashita
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Koji Tanaka
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Yasuhiro Miyazaki
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Tomoki Makino
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Kiyokazu Nakajima
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Makoto Yamasaki
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Hidetoshi Eguchi
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Yuichiro Doki
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
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16
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Castello-Serrano I, Lorent JH, Ippolito R, Levental KR, Levental I. Myelin-Associated MAL and PLP Are Unusual among Multipass Transmembrane Proteins in Preferring Ordered Membrane Domains. J Phys Chem B 2020; 124:5930-5939. [PMID: 32436385 PMCID: PMC7792449 DOI: 10.1021/acs.jpcb.0c03028] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Eukaryotic membranes can be partitioned into lipid-driven membrane microdomains called lipid rafts, which function to sort lipids and proteins in the plane of the membrane. As protein selectivity underlies all functions of lipid rafts, there has been significant interest in understanding the structural and molecular determinants of raft affinity. Such determinants have been described for lipids and single-spanning transmembrane proteins; however, how multipass transmembrane proteins (TMPs) partition between ordered and disordered phases has not been widely explored. Here we used cell-derived giant plasma membrane vesicles (GPMVs) to systematically measure multipass TMP partitioning to ordered membrane domains. Across a set of 24 structurally and functionally diverse multipass TMPs, the large majority (92%) had minimal raft affinity. The only exceptions were two myelin-associated four-pass TMPs, myelin and lymphocyte protein (MAL), and proteo lipid protein (PLP). We characterized the potential mechanisms for their exceptional raft affinity and observed that PLP requires cholesterol and sphingolipids for optimal association with ordered membrane domains and that PLP and MAL appear to compete for cholesterol-mediated raft affinity. These observations suggest broad conclusions about the composition of ordered membrane domains in cells and point to previously unrecognized drivers of raft affinity for multipass transmembrane proteins.
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Affiliation(s)
- Ivan Castello-Serrano
- Department of Integrative Biology and Pharmacology, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Joseph H Lorent
- Department of Integrative Biology and Pharmacology, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Rossana Ippolito
- Department of Integrative Biology and Pharmacology, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Kandice R Levental
- Department of Integrative Biology and Pharmacology, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Ilya Levental
- Department of Integrative Biology and Pharmacology, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX 77030, USA
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17
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Chidambaram H, Chinnathambi S. G-Protein Coupled Receptors and Tau-different Roles in Alzheimer’s Disease. Neuroscience 2020; 438:198-214. [DOI: 10.1016/j.neuroscience.2020.04.019] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 04/10/2020] [Accepted: 04/15/2020] [Indexed: 01/14/2023]
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18
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Saad A, Goldstein J, Margalit O, Shacham‐Shmueli E, Lawrence YR, Yang Y, Reiss KA, Golan T, Mamtani R, Halpern N, Aderka D, Mouallem M, Goldstein A, Giantonio B, Boursi B. Assessing the effects of beta‐blockers on pancreatic cancer risk: A nested case‐control study. Pharmacoepidemiol Drug Saf 2020; 29:599-604. [DOI: 10.1002/pds.4993] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Revised: 02/19/2020] [Accepted: 03/04/2020] [Indexed: 11/11/2022]
Affiliation(s)
- Akram Saad
- Department of OncologySheba Medical Center Tel‐Hashomer Israel
- Sackler School of MedicineTel‐Aviv University Tel‐Aviv Israel
| | - Jeffrey Goldstein
- Department of OncologySheba Medical Center Tel‐Hashomer Israel
- Sackler School of MedicineTel‐Aviv University Tel‐Aviv Israel
| | - Ofer Margalit
- Department of OncologySheba Medical Center Tel‐Hashomer Israel
- Sackler School of MedicineTel‐Aviv University Tel‐Aviv Israel
| | - Einat Shacham‐Shmueli
- Department of OncologySheba Medical Center Tel‐Hashomer Israel
- Sackler School of MedicineTel‐Aviv University Tel‐Aviv Israel
| | - Yaacov R. Lawrence
- Department of OncologySheba Medical Center Tel‐Hashomer Israel
- Sackler School of MedicineTel‐Aviv University Tel‐Aviv Israel
- Department of Radiation OncologySidney Kimmel Medical College at Thomas Jefferson University Philadelphia Pennsylvania USA
| | - Yu‐Xiao Yang
- Center for Clinical Epidemiology and BiostatisticsPerelman School of Medicine at the University of Pennsylvania Philadelphia Pennsylvania USA
- Division of Gastroenterology, Department of MedicinePerelman School of Medicine at the University of Pennsylvania Philadelphia Pennsylvania USA
| | - Kim A. Reiss
- Abramson Cancer CenterUniversity of Pennsylvania Philadelphia Pennsylvania USA
| | - Talia Golan
- Department of OncologySheba Medical Center Tel‐Hashomer Israel
- Sackler School of MedicineTel‐Aviv University Tel‐Aviv Israel
| | - Ronac Mamtani
- Center for Clinical Epidemiology and BiostatisticsPerelman School of Medicine at the University of Pennsylvania Philadelphia Pennsylvania USA
- Abramson Cancer CenterUniversity of Pennsylvania Philadelphia Pennsylvania USA
| | - Naama Halpern
- Department of OncologySheba Medical Center Tel‐Hashomer Israel
- Sackler School of MedicineTel‐Aviv University Tel‐Aviv Israel
| | - Dan Aderka
- Department of OncologySheba Medical Center Tel‐Hashomer Israel
- Sackler School of MedicineTel‐Aviv University Tel‐Aviv Israel
| | - Meir Mouallem
- Sackler School of MedicineTel‐Aviv University Tel‐Aviv Israel
| | - Adam Goldstein
- Sackler School of MedicineTel‐Aviv University Tel‐Aviv Israel
| | - Bruce Giantonio
- Division of Hematology and Oncology, Department of MedicineMassachusetts General Hospital, Harvard Medical School Boston Massachusetts USA
| | - Ben Boursi
- Department of OncologySheba Medical Center Tel‐Hashomer Israel
- Sackler School of MedicineTel‐Aviv University Tel‐Aviv Israel
- Center for Clinical Epidemiology and BiostatisticsPerelman School of Medicine at the University of Pennsylvania Philadelphia Pennsylvania USA
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Spotlight on ROS and β3-Adrenoreceptors Fighting in Cancer Cells. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:6346529. [PMID: 31934266 PMCID: PMC6942895 DOI: 10.1155/2019/6346529] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Accepted: 11/26/2019] [Indexed: 02/07/2023]
Abstract
The role of ROS and RNS is a long-standing debate in cancer. Increasing the concentration of ROS reaching the toxic threshold can be an effective strategy for the reduction of tumor cell viability. On the other hand, cancer cells, by maintaining intracellular ROS concentration at an intermediate level called “mild oxidative stress,” promote the activation of signaling that favors tumor progression by increasing cell viability and dangerous tumor phenotype. Many chemotherapeutic treatments induce cell death by rising intracellular ROS concentration. The persistent drug stimulation leads tumor cells to simulate a process called hormesis by which cancer cells exhibit a biphasic response to exposure to drugs used. After a first strong response to a low dose of chemotherapeutic agent, cancer cells start to decrease the response even if high doses of drugs were used. In this framework, β3-adrenoreceptors (β3-ARs) fit with an emerging antioxidant role in cancer. β3-ARs are involved in tumor proliferation, angiogenesis, metastasis, and immune tolerance. Its inhibition, by the selective β3-ARs antagonist (SR59230A), leads cancer cells to increase ROS concentration thus inducing cell death and to decrease NO levels thus inhibiting angiogenesis. In this review, we report an overview on reactive oxygen biology in cancer cells focusing on β3-ARs as new players in the antioxidant pathway.
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β 2-Adrenergic Receptor (ADRB2) Gene Polymorphisms and Risk of COPD Exacerbations: The Rotterdam Study. J Clin Med 2019; 8:jcm8111835. [PMID: 31683975 PMCID: PMC6912270 DOI: 10.3390/jcm8111835] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 10/16/2019] [Accepted: 10/28/2019] [Indexed: 12/13/2022] Open
Abstract
The role of the β2-adrenergic receptor (ADRB2) gene in patients with chronic obstructive pulmonary disease (COPD) is unclear. We investigated the association between ADRB2 variants and the risk of exacerbations in COPD patients treated with inhaled β2-agonists. Within the Rotterdam Study, a population-based cohort study, we followed 1,053 COPD patients until the first COPD exacerbation or end of follow-up and extracted rs1042713 (16Arg > Gly) and rs1042714 (27Gln > Glu) in ADRB2. Exposure to inhaled β2-agonists was categorised into current, past or non-use on the index date (date of COPD exacerbation for cases and on the same day of follow-up for controls). COPD exacerbations were defined as acute episodes of worsening symptoms requiring systemic corticosteroids and/or antibiotics (moderate exacerbations), or hospitalization (severe exacerbations). The associations between ADRB2 variants and COPD exacerbations were assessed using Cox proportional hazards models, adjusting for age, sex, use of inhaled corticosteroids, daily dose of β2-agonists, and smoking. In current users of β2-agonists, the risk of COPD exacerbation decreased by 30% (hazard ratio (HR); 0.70, 95% CI: 0.59-0.84) for each copy of the Arg allele of rs1042713 and by 20% (HR; 0.80, 95% CI: 0.69-0.94) for each copy of the Gln allele of rs1042714. Furthermore, current users carrying the Arg16/Gln27 haplotype had a significantly lower risk (HR; 0.70, 95% CI: 0.59-0.85) of COPD exacerbation compared to the Gly16/Glu27 haplotype. In conclusion, we observed that the Arg16/Gln27 haplotype in ADRB2 was associated with a reduced risk of COPD exacerbation in current users of inhaled β2-agonists.
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Katsarou MS, Karathanasopoulou A, Andrianopoulou A, Desiniotis V, Tzinis E, Dimitrakis E, Lagiou M, Charmandari E, Aschner M, Tsatsakis AM, Chrousos GP, Drakoulis N. Beta 1, Beta 2 and Beta 3 Adrenergic Receptor Gene Polymorphisms in a Southeastern European Population. Front Genet 2018; 9:560. [PMID: 30546380 PMCID: PMC6279855 DOI: 10.3389/fgene.2018.00560] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Accepted: 11/05/2018] [Indexed: 01/05/2023] Open
Abstract
Genetic polymorphisms in β1-, β2- and β3-adrenergic receptors (β-ARs) have been associated with chronic non-communicable disorders, such as cardiovascular diseases, asthma, chronic obstructive pulmonary disease (COPD) and obesity, as well as β-agonists and antagonists response and toxicity. The purpose of this study was to determine the frequency distribution of ADRB1 genetic variants Ser49Gly and Arg389Gly, ADRB2 variants Gly16Arg and Gln27Glu, ADRB3 variant Trp64Arg in a Southeastern European Caucasian (SEC) population sample and to establish a comparison with existing data from other human populations. A sample of 431 men and 590 women volunteered to participate in this genotyping analysis after anonymization and de-identification. Real Time PCR (Melting Curve Analysis) followed DNA extraction from buccal swabs and statistical analysis of the results was performed. The allele frequencies in the SEC population were Ser49 (90.3%), Arg389 (69.49%), Gly16 (61.61%), Gln27 (65.72%), and Trp64 (94.52%), while a Hardy-Weinberg Equilibrium (HWE) was detected in the population studied. Comparisons for the Ser49Gly, Gln27Glu, and Trp64Arg allele distributions demonstrated significant differences between SEC and the European group. European subgroups comparisons showed that allele distributions were similar for four of the five SNPs between SEC and Southwestern European Caucasians (SWC), while they were quite distinct from the Northwestern European Caucasians (NWC). These data underline the importance of interethnic variability of β-ARs genetic polymorphisms.
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Affiliation(s)
- Martha-Spyridoula Katsarou
- Research Group of Clinical Pharmacology and Pharmacogenomics, Faculty of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Zografou, Greece
| | - Aikaterini Karathanasopoulou
- Research Group of Clinical Pharmacology and Pharmacogenomics, Faculty of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Zografou, Greece
| | - Angeliki Andrianopoulou
- Research Group of Clinical Pharmacology and Pharmacogenomics, Faculty of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Zografou, Greece
| | - Vasileios Desiniotis
- Research Group of Clinical Pharmacology and Pharmacogenomics, Faculty of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Zografou, Greece
| | - Efthymios Tzinis
- Department of Computer Science, University of Illinois at Urbana-Champaign, Champaign, IL, United States
| | - Efthimios Dimitrakis
- Research Group of Clinical Pharmacology and Pharmacogenomics, Faculty of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Zografou, Greece
| | - Maria Lagiou
- Research Group of Clinical Pharmacology and Pharmacogenomics, Faculty of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Zografou, Greece
| | - Evangelia Charmandari
- Division of Endocrinology, Metabolism and Diabetes, First Department of Pediatrics, "Aghia Sophia" Children's Hospital, National and Kapodistrian University of Athens Medical School, Athens, Greece
| | - Michael Aschner
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY, United States
| | | | - George P Chrousos
- Division of Endocrinology, Metabolism and Diabetes, First Department of Pediatrics, "Aghia Sophia" Children's Hospital, National and Kapodistrian University of Athens Medical School, Athens, Greece
| | - Nikolaos Drakoulis
- Research Group of Clinical Pharmacology and Pharmacogenomics, Faculty of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Zografou, Greece
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22
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Panettieri RA, Pera T, Liggett SB, Benovic JL, Penn RB. Pepducins as a potential treatment strategy for asthma and COPD. Curr Opin Pharmacol 2018; 40:120-125. [PMID: 29729548 DOI: 10.1016/j.coph.2018.04.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Revised: 04/10/2018] [Accepted: 04/11/2018] [Indexed: 12/18/2022]
Abstract
Current therapies to treat asthma and other airway diseases primarily include anti-inflammatory agents and bronchodilators. Anti-inflammatory agents target trafficking and resident immunocytes and structural cells, while bronchodilators act to prevent or reverse shortening of airway smooth muscle (ASM), the pivotal tissue regulating bronchomotor tone. Advances in our understanding of the biology of G protein-coupled receptors (GPCRs) and biased agonism offers unique opportunities to modulate GPCR function that include the use of pepducins and allosteric modulators. Recent evidence suggests that small molecule inhibitors of Gαq as well as pepducins targeting Gq-coupled receptors can broadly inhibit contractile agonist-induced ASM function. Given these advances, new therapeutic approaches can be leveraged to diminish the global rise in morbidity and mortality associated with asthma and chronic obstructive pulmonary disease.
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Affiliation(s)
- Reynold A Panettieri
- Rutgers Institute for Translational Medicine and Science, Robert Wood Johnson Medical School, Rutgers, The State University of New Jersey, 89 French Street, Suite 4211, New Brunswick, NJ 08901, United States.
| | - Tonio Pera
- Sidney Kimmel Medical College, Center for Translational Medicine, Jane and Leonard Korman Lung Institute, Thomas Jefferson University, Philadelphia, PA 19107, United States
| | - Stephen B Liggett
- USF Health Office of Research, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, United States
| | - Jeffrey L Benovic
- Department of Biochemistry and Molecular Biology, Thomas Jefferson University, Philadelphia, PA 19107, United States
| | - Raymond B Penn
- Sidney Kimmel Medical College, Center for Translational Medicine, Jane and Leonard Korman Lung Institute, Thomas Jefferson University, Philadelphia, PA 19107, United States
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23
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Hoffmann S, Böhme J, Kube C, Pees M, Haufe J, Abraham G. Breed-related differences in age-dependent down-regulation of the β1-adrenoceptor and adenylate cyclase activity in atrial and ventricular myocardium of Cröllwitzer ("wild-type") turkeys. Poult Sci 2018; 97:1041-1049. [PMID: 29253207 DOI: 10.3382/ps/pex362] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Accepted: 11/09/2017] [Indexed: 11/20/2022] Open
Abstract
In conventional meat-type (British United Turkey (B.U.T.) Big 6) turkey hearts, it has been shown that all cardiac chambers exhibit down-regulation of the β1-adrenoceptors (β1-AR) and concomitantly cAMP accumulation with increasing age regardless of sex. In this study we proved the hypothesis that breed differences exist in age-dependent alterations in the β1-AR system. Right (RA) and left (LA) atrial as well as right (RV) and left (LV) ventricular tissues were collected from male and female Cröllwitzer "wild-type" turkey poults of increasing age (6 wk, 12 wk, 16 wk, 21 wk). The β1-AR density and function were quantified by (-)-[125I]-iodocyanopindolol (ICYP) radioligand binding analysis in cell membranes from 4 cardiac chambers. Basal and stimulated cAMP production was determined as indicator of the receptor function. Wild-type turkeys showed significantly higher heart to body weight ratio than the meat-type B.U.T. Big 6 turkeys. In both sexes of Cröllwitzer turkey hearts, the β1-AR density decreased with age but significance was reached in male cardiac chambers. The receptor affinity (KD) and subtype distribution were not altered. Sex had no effect on age-related decrease in receptor density but had an effect on adenylate cyclase (AC) activity and subsequently cAMP production. In male Cröllwitzer turkey hearts of all ages, cAMP remained at same level, whereas this was even increased in female cardiac chambers. Thus, breed affected age-related receptor-, G-protein and AC-stimulated cAMP formation in normal ventricles and atria, with females exhibiting pronounced increase with age. This suggests that the receptor signaling in wild-type turkey hearts is not as blunted as in hearts of meat-type turkey poults in which stressful farming conditions and fast growing lead to receptor down-regulation.
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Affiliation(s)
- Sandra Hoffmann
- Institute of Pharmacology, Pharmacy and Toxicology, Faculty of Veterinary Medicine, University of Leipzig, D-04103 Leipzig, Germany
| | - Julia Böhme
- Clinic for Birds and Reptiles, Faculty of Veterinary Medicine, University of Leipzig, D-04103 Leipzig, Germany
| | - Christian Kube
- Clinic for Birds and Reptiles, Faculty of Veterinary Medicine, University of Leipzig, D-04103 Leipzig, Germany
| | - Michael Pees
- Clinic for Birds and Reptiles, Faculty of Veterinary Medicine, University of Leipzig, D-04103 Leipzig, Germany
| | - Jörg Haufe
- GLU mbH, Handwerkerstraße 24d, D-15366 Hoppegarten, Germany
| | - Getu Abraham
- Institute of Pharmacology, Pharmacy and Toxicology, Faculty of Veterinary Medicine, University of Leipzig, D-04103 Leipzig, Germany
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24
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Functional autoantibodies targeting G protein-coupled receptors in rheumatic diseases. Nat Rev Rheumatol 2017; 13:648-656. [PMID: 28855694 DOI: 10.1038/nrrheum.2017.134] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
G protein-coupled receptors (GPCRs) comprise the largest and most diverse family of integral membrane proteins that participate in different physiological processes such as the regulation of the nervous and immune systems. Besides the endogenous ligands of GPCRs, functional autoantibodies are also able to bind GPCRs to trigger or block intracellular signalling pathways, resulting in agonistic or antagonistic effects, respectively. In this Review, the effects of functional GPCR-targeting autoantibodies on the pathogenesis of autoimmune diseases, including rheumatic diseases, are discussed. Autoantibodies targeting β1 and β2 adrenergic receptors, which are expressed by cardiac and airway smooth muscle cells, respectively, have an important role in the development of asthma and cardiovascular diseases. In addition, high levels of autoantibodies against the muscarinic acetylcholine receptor M3 as well as those targeting endothelin receptor type A and type 1 angiotensin II receptor have several implications in the pathogenesis of rheumatic diseases such as Sjögren syndrome and systemic sclerosis. Expanding the knowledge of the pathophysiological roles of autoantibodies against GPCRs will shed light on the biology of these receptors and open avenues for new therapeutic approaches.
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25
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Podlewska S, Czarnecki WM, Kafel R, Bojarski AJ. Creating the New from the Old: Combinatorial Libraries Generation with Machine-Learning-Based Compound Structure Optimization. J Chem Inf Model 2017; 57:133-147. [DOI: 10.1021/acs.jcim.6b00426] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Sabina Podlewska
- Department of Medicinal
Chemistry, Institute of Pharmacology, Polish Academy of Sciences, Smętna 12, 31-343 Kraków, Poland
| | - Wojciech M. Czarnecki
- Faculty
of Mathematics and Computer Science, Jagiellonian University, 30-348 Kraków, Poland
| | - Rafał Kafel
- Department of Medicinal
Chemistry, Institute of Pharmacology, Polish Academy of Sciences, Smętna 12, 31-343 Kraków, Poland
| | - Andrzej J. Bojarski
- Department of Medicinal
Chemistry, Institute of Pharmacology, Polish Academy of Sciences, Smętna 12, 31-343 Kraków, Poland
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26
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Zhang D, Lei J, Ma J, Chen X, Sheng L, Jiang Z, Nan L, Xu Q, Duan W, Wang Z, Li X, Wu Z, Wu E, Ma Q, Huo X. β2-adrenogenic signaling regulates NNK-induced pancreatic cancer progression via upregulation of HIF-1α. Oncotarget 2017; 7:17760-72. [PMID: 26497365 PMCID: PMC4951248 DOI: 10.18632/oncotarget.5677] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Accepted: 10/06/2015] [Indexed: 12/20/2022] Open
Abstract
Cigarette smoking is a risk factor for pancreatic cancer. It is suggested that 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK), a tobacco-specific nitrosamine, mediates the carcinogenic action of cigarette smoking by promoting cancer growth. In the present study, we show that smoking, HIF-1α expression and β2-adrenogenic receptor (β2-AR) expression are negatively correlated with the overall survival of pancreatic cancer patients. Moreover, HIF-1α expression and β2-AR expression are positively correlated with smoking status, different histological differentiation and among the tumor node metastasis (TNM) stages in pancreatic cancer patients. NNK increases HIF-1α expression in pancreatic cancer in vitro and in vivo. Furthermore, knockdown of HIF-1α and ICI118, 551 (a β2-AR selective antagonist) abrogates NNK-induced pancreatic cancer proliferation and invasion in vitro and inhibits NNK-induced pancreatic cancer growth in vivo. However, using CoCl2 (a HIF-1α stabilizing agent which decreases HIF-1α degradation under normoxia conditions) reverses ICI118, 551 induced effects under NNK exposure. Thus, our data indicate that β2-AR signaling regulates NNK-induced pancreatic cancer progression via upregulation of HIF-1α. Taken together, β2-AR signaling and HIF-1α may represent promising therapeutic targets for preventing smoking induced pancreatic cancer progression.
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Affiliation(s)
- Dong Zhang
- Department of Hepatobiliary Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Jianjun Lei
- Department of Hepatobiliary Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Jiguang Ma
- Department of Oncology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Xin Chen
- Department of Hepatobiliary Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Liang Sheng
- Department of Hepatobiliary Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Zhengdong Jiang
- Department of Hepatobiliary Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Ligang Nan
- Department of Hepatobiliary Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Qinhong Xu
- Department of Hepatobiliary Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Wanxing Duan
- Department of Hepatobiliary Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Zheng Wang
- Department of Hepatobiliary Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Xuqi Li
- Department of General Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Zheng Wu
- Department of Hepatobiliary Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Erxi Wu
- Department of Neurosurgery, Baylor Scott and White Health, Temple, TX, 76508, USA
| | - Qingyong Ma
- Department of Hepatobiliary Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Xiongwei Huo
- Department of General Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
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27
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Interactions between β-adrenergic vasodilation and cervical sympathetic nerves are mediated by α 2-adrenoceptors in the rat masseter muscle. J Physiol Sci 2016; 67:699-709. [PMID: 27826897 PMCID: PMC5910521 DOI: 10.1007/s12576-016-0499-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Accepted: 10/25/2016] [Indexed: 11/24/2022]
Abstract
Neural and humoral autonomic mechanisms may be important in the maintenance of blood flow in the masseter muscle (MBF). However, their interactions remain unclear. In this study, we examined interactions between neural and humoral regulation of MBF and investigated the mechanisms mediating these interactions in urethane-anesthetized rats. Stimulation of the adrenal nerve (AN) projecting to the adrenal medulla increased MBF, and this increase was mediated by β-adrenoceptors. Sectioning of the superior cervical sympathetic trunk (CST) significantly inhibited increases in MBF induced by AN stimulation during high activity in the CST, but not during low activity. AN stimulation with clonidine after CST sectioning induced a significant increased in MBF, however phenylephrine had no observable effect. Pretreatment with yohimbine or propranolol significantly inhibited the increase in the MBF. Our results suggest an interaction between β-adrenergic vasodilation evoked by circulating adrenaline and the cervical sympathetic nerves that is mediated by α2-adrenoceptors in the masseter muscle.
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28
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Zhang Y, Zeng K, Wang J, Gao H, Nan Y, Zheng X. Identifying the antiasthmatic target of doxofylline using immobilized β2 -adrenoceptor based high-performance affinity chromatography and site-directed molecular docking. J Mol Recognit 2016; 29:492-8. [PMID: 27173639 DOI: 10.1002/jmr.2549] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2015] [Revised: 02/28/2016] [Accepted: 04/06/2016] [Indexed: 01/16/2023]
Abstract
As a xanthine derivative, doxofylline is believed to be dominant for fighting against asthma in practice. Unlike other xanthines, the antiasthmatic effects of doxofylline lack any definite proof of target and mediating mechanism according to previous reports. In this work, the interaction between doxofylline and β2 -AR was investigated by high performance affinity chromatography using frontal analysis and nonlinear model. The methodology involved the immobilization of β2 -AR on the silica gel by a random linking method, the determination of the binding parameters by frontal analysis and nonlinear chromatography and the exploration of the binding mechanism by site-directed molecular docking. The association constant for doxofylline binding to immobilized β2 -AR was determined to be 7.70 × 10(4) M(-1) by nonlinear chromatography and 5.91 × 10(4) M(-1) by frontal analysis. Ser(169) and Ser(173) were the binding sites for the receptor-drug interaction on which hydrogen bond was believed to be the main driven force during the interaction. These results indicated that the antiasthmatic effects of doxofylline may be behind the mediating mechanism of β2 -AR. High performance affinity chromatography based on immobilized receptor has potential to become an alternative for drug target confirmation and drug-receptor interaction analysis. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Yajun Zhang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, College of Life Sciences, Northwest University, Xi'an, 710069, China.
| | - Kaizhu Zeng
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, College of Life Sciences, Northwest University, Xi'an, 710069, China
| | - Jing Wang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, College of Life Sciences, Northwest University, Xi'an, 710069, China
| | - Haiyang Gao
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, College of Life Sciences, Northwest University, Xi'an, 710069, China
| | - Yefei Nan
- College of Chemistry and Chemical Engineering, Xi'an Shiyou University, Xi'an, 710065, China
| | - Xiaohui Zheng
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, College of Life Sciences, Northwest University, Xi'an, 710069, China
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29
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Fan X, Gu X, Zhao R, Zheng Q, Li L, Yang W, Ding L, Xue F, Fan J, Gong Y, Wang Y. Cardiac β2-Adrenergic Receptor Phosphorylation at Ser355/356 Regulates Receptor Internalization and Functional Resensitization. PLoS One 2016; 11:e0161373. [PMID: 27541735 PMCID: PMC4991819 DOI: 10.1371/journal.pone.0161373] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Accepted: 08/04/2016] [Indexed: 02/05/2023] Open
Abstract
Previous studies have demonstrated that β2-adrenergic receptors (β2ARs) can be phosphorylated by G protein-coupled receptor kinases (GRKs) and protein kinase A (PKA), affecting β2AR internalization and desensitization. However, the exact physiological function of β2ARs in cardiomyocytes is unknown. In this study, we showed that neonatal mouse cardiomyocytes had different contraction and internalization responses to sustained or repeated, transient agonist stimulation. Specifically, short-time stimulation (10 min) with epinephrine or norepinephrine increased the cardiomyocyte contraction rate, reaching a maximum at 5 min, followed by a slow decline. When the agonist was re-added after a 60-min wash-out period, the increase in the cardiomyocyte contraction rate was similar to the initial response. In contrast, when cardiomyocytes were exposed continuously to epinephrine or norepinephrine for 60 min, the second agonist stimulation did not increase the contraction response. These results indicated that continuous β2AR stimulation caused functional desensitization. Phosphorylation of β2ARs at serine (Ser)355/356 GRK phosphorylation sites, but not at Ser345/346 PKA phosphorylation sites increased with continuous epinephrine stimulation for 60 min. Accordingly, β2AR internalization increased. Interestingly, β2AR internalization was blocked by mutations at the GRK phosphorylation sites, but not by mutations at the PKA phosphorylation sites. Furthermore, inhibition of β2AR dephosphorylation by okadaic acid, a phosphatase 2A inhibitor, impaired the recovery of internalized β2ARs and reduced the cardiomyocyte contraction rate in response to epinephrine. Finally, epinephrine treatment induced the physical interaction of β-arrestin with internalized β2ARs in cardiomyocytes. Together, these data revealed the essential role of the Ser355/356 phosphorylation status of β2ARs in regulating receptor internalization and physiological resensitization in neonatal cardiomyocytes to contraction functions.
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MESH Headings
- Animals
- Animals, Newborn
- Cells, Cultured
- Epinephrine/pharmacology
- Female
- Kinetics
- Male
- Mice
- Mice, Inbred C57BL
- Mice, Inbred DBA
- Mice, Knockout
- Mutagenesis, Site-Directed
- Mutation/genetics
- Myocytes, Cardiac/cytology
- Myocytes, Cardiac/drug effects
- Myocytes, Cardiac/metabolism
- Norepinephrine/pharmacology
- Phosphorylation/drug effects
- Receptors, Adrenergic, beta-1/genetics
- Receptors, Adrenergic, beta-1/metabolism
- Receptors, Adrenergic, beta-2/genetics
- Receptors, Adrenergic, beta-2/metabolism
- Serine/metabolism
- Signal Transduction/drug effects
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Affiliation(s)
- Xiaofang Fan
- Institute of Hypoxia Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, P.R. China
| | - Xuejiang Gu
- Department of Endocrine and Metabolic Diseases, 1 Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, P.R. China
| | - Ru Zhao
- Institute of Hypoxia Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, P.R. China
| | - Qingqing Zheng
- Institute of Hypoxia Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, P.R. China
| | - Lan Li
- Department of Pathology, Shantou University Medical College, Shantou, Guangdong, P.R. China
| | - Wenbing Yang
- Department of Pathology, Shantou University Medical College, Shantou, Guangdong, P.R. China
| | - Lu Ding
- Institute of Hypoxia Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, P.R. China
| | - Feng Xue
- Institute of Hypoxia Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, P.R. China
| | - Junming Fan
- Institute of Hypoxia Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, P.R. China
| | - Yongsheng Gong
- Institute of Hypoxia Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, P.R. China
- * E-mail: (YW); (YG)
| | - Yongyu Wang
- Institute of Hypoxia Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, P.R. China
- * E-mail: (YW); (YG)
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30
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Kelder TP, Duim SN, Vicente-Steijn R, Végh AMD, Kruithof BPT, Smits AM, van Bavel TC, Bax NAM, Schalij MJ, Gittenberger-de Groot AC, DeRuiter MC, Goumans MJ, Jongbloed MRM. The epicardium as modulator of the cardiac autonomic response during early development. J Mol Cell Cardiol 2015; 89:251-9. [PMID: 26527381 DOI: 10.1016/j.yjmcc.2015.10.025] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Revised: 10/14/2015] [Accepted: 10/20/2015] [Indexed: 12/29/2022]
Abstract
The cardiac autonomic nervous system (cANS) modulates heart rate, contraction force and conduction velocity. The embryonic chicken heart already responds to epinephrine prior to establishment of the cANS. The aim of this study was to define the regions of the heart that might participate in modulating the early autonomic response to epinephrine. Immunofluorescence analysis reveals expression of neural markers tubulin beta-3 chain and neural cell adhesion molecule in the epicardium during early development. In addition, expression of the β2 adrenergic receptor, the receptor for epinephrine, was found in the epicardium. Ex-ovo micro-electrode recordings in hearts with inhibition of epicardial outgrowth showed a significantly reduced response of the heart rate to epinephrine compared to control hearts. This study suggests a role for the epicardium as autonomic modulator during early cardiac development.
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Affiliation(s)
- Tim P Kelder
- Department of Anatomy & Embryology, Leiden University Medical Center, Leiden, The Netherlands
| | - Sjoerd N Duim
- Department of Molecular Cell Biology, Leiden University Medical Center, Leiden, The Netherlands
| | - Rebecca Vicente-Steijn
- Department of Anatomy & Embryology, Leiden University Medical Center, Leiden, The Netherlands; Department of Cardiology, Leiden University Medical Center, Leiden, The Netherlands; ICIN Netherlands Heart Institute, Utrecht, The Netherlands
| | - Anna M D Végh
- Department of Molecular Cell Biology, Leiden University Medical Center, Leiden, The Netherlands
| | - Boudewijn P T Kruithof
- Department of Molecular Cell Biology, Leiden University Medical Center, Leiden, The Netherlands
| | - Anke M Smits
- Department of Molecular Cell Biology, Leiden University Medical Center, Leiden, The Netherlands
| | - Thomas C van Bavel
- Department of Anatomy & Embryology, Leiden University Medical Center, Leiden, The Netherlands; Department of Molecular Cell Biology, Leiden University Medical Center, Leiden, The Netherlands
| | - Noortje A M Bax
- Department of Biomedical Engineering, Eindhoven University of Technology, The Netherlands
| | - Martin J Schalij
- Department of Cardiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Adriana C Gittenberger-de Groot
- Department of Anatomy & Embryology, Leiden University Medical Center, Leiden, The Netherlands; Department of Cardiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Marco C DeRuiter
- Department of Anatomy & Embryology, Leiden University Medical Center, Leiden, The Netherlands
| | - Marie-José Goumans
- Department of Molecular Cell Biology, Leiden University Medical Center, Leiden, The Netherlands.
| | - Monique R M Jongbloed
- Department of Anatomy & Embryology, Leiden University Medical Center, Leiden, The Netherlands; Department of Cardiology, Leiden University Medical Center, Leiden, The Netherlands.
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Abstract
INTRODUCTION Long-acting β2-agonists are an effective class of drugs, when combined with inhaled corticosteroids, for reducing symptoms and exacerbations in patients with asthma that is not adequately controlled by inhaled corticosteroids alone. However, because this class of drugs has been associated with severe adverse events, including hospitalization and death in small numbers of patients, efforts to identify a pharmacogenetic profile for patients at risk has been diligently investigated. AREAS COVERED The PubMed search engine of the National Library of Medicine was used to identify English-language and non-English language articles published from 1947 to March 2015 pertinent to asthma, pharmacogenomics, and long-acting β2-agonists. Keywords and topics included: asthma, asthma control, long-acting β2-agonists, salmeterol, formoterol, pharmacogenetics, and pharmacogenomics. This strategy was also used for the Cochrane Library Database and CINAHL. Reference types were randomized controlled trials, reviews, and editorials. Additional publications were culled from reference lists. The publications were reviewed by the authors and those most relevant were used to support the topics covered in this review. EXPERT OPINION Children, who carry the ADRB2 Arg16Arg genotype, may be at greater risk than adults for severe adverse events. Rare ADRB2 variants appear to provide better clues for identifying the at-risk population of asthmatics.
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Affiliation(s)
- Kathryn Blake
- a 1 Center for Pharmacogenomics and Translational Research, Nemours Children's Specialty Care , 807 Children's Way, Jacksonville, FL, USA +1 904 697 3806 ; +1 904 697 3799 ;
| | - John Lima
- b 2 Center for Pharmacogenomics and Translational Research, Nemours Children's Specialty Care , 807 Children's Way, Jacksonville, FL, USA
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Santus P, Radovanovic D, Paggiaro P, Papi A, Sanduzzi A, Scichilone N, Braido F. Why use long acting bronchodilators in chronic obstructive lung diseases? An extensive review on formoterol and salmeterol. Eur J Intern Med 2015; 26:379-84. [PMID: 26049917 DOI: 10.1016/j.ejim.2015.05.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2015] [Revised: 04/27/2015] [Accepted: 05/01/2015] [Indexed: 10/23/2022]
Abstract
Long-acting β2-adrenoceptor agonists, formoterol and salmeterol, represent a milestone in the treatments of chronic obstructive lung diseases. Although no specific indications concerning the choice of one molecule rather than another are provided by asthma and COPD guidelines, they present different pharmacological properties resulting in distinct clinical employment possibilities. In particular, salmeterol has a low intrinsic efficacy working as a partial receptor agonist, while formoterol is a full agonist with high intrinsic efficacy. From a clinical perspective, in the presence of low β2-adrenoceptors availability, like in inflamed airways, a full agonist can maintain its bronchodilatory and non-smooth muscle activities while a partial agonist may be less effective. Furthermore, formoterol presents a faster onset of action than salmeterol. This phenomenon, combined with the molecule safety profile, leads to a prompt amelioration of the symptoms, and allows using this drug in asthma as an "as needed" treatment in patients already on regular treatment. The fast onset of action and the full agonism of formoterol need to be considered in order to select the best pharmacological treatment of asthma and COPD.
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Affiliation(s)
- P Santus
- Dipartimento di Scienze della Salute. Pneumologia Riabilitativa Fondazione Salvatore Maugeri, Istituto Scientifico di Milano-IRCCS. Università degli Studi di Milano, Italy
| | - D Radovanovic
- Dipartimento di Scienze della Salute. Pneumologia Riabilitativa Fondazione Salvatore Maugeri, Istituto Scientifico di Milano-IRCCS. Università degli Studi di Milano, Italy
| | - P Paggiaro
- Cardio-Thoracic and Vascular Department, University Hospital of Pisa, Italy
| | - A Papi
- Respiratory Medicine, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - A Sanduzzi
- Section of Respiratory Diseases, Department of Surgery and Clinical Medicine, University of Naples, Italy
| | - N Scichilone
- Department of Internal Medicine, Section of Pulmonology (DIBIMIS), University of Palermo, Italy
| | - F Braido
- Allergy and Respiratory Diseases Clinic, DIMI, University of Genoa, IRCS AOU San Martino-IST, Genoa, Italy.
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Ibrahim AF, Blohm E, Hammad H. Management of Status Asthmaticus. CURRENT EMERGENCY AND HOSPITAL MEDICINE REPORTS 2015. [DOI: 10.1007/s40138-015-0081-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Mountjoy KG. Pro-Opiomelanocortin (POMC) Neurones, POMC-Derived Peptides, Melanocortin Receptors and Obesity: How Understanding of this System has Changed Over the Last Decade. J Neuroendocrinol 2015; 27:406-18. [PMID: 25872650 DOI: 10.1111/jne.12285] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Revised: 04/04/2015] [Accepted: 04/07/2015] [Indexed: 12/19/2022]
Abstract
Following the cloning of the melanocortin receptor and agouti protein genes, a model was developed for the central melanocortin system with respect to the regulation of energy and glucose homeostasis. This model comprised leptin regulation of melanocortin peptides and agouti-related peptide (AgRP) produced from central pro-opiomelanocortin (POMC) and AgRP neurones, respectively, as well as AgRP competitive antagonism of melanocortin peptides activating melanocortin 4 receptor (MC4R) to Gαs and the cAMP signalling pathway. In the last decade, there have been paradigm shifts in our understanding of the central melanocortin system as a result of the application of advanced new technologies, including Cre-LoxP transgenic mouse technology, pharmacogenetics and optogenetics. During this period, our understanding of G protein coupled receptor signal transduction has also dramatically changed, such that these receptors are now known to exist in the plasma membrane oscillating between various inactive and active conformational states, and the active states signal through G protein-dependent and G protein-independent pathways. The present review focuses on evidence obtained over the past decade that has changed our understanding of POMC gene expression and regulation in the central nervous system, POMC and AgRP neuronal circuitry, neuroanatomical functions of melanocortin receptors, melanocortin 3 receptor (MC3R) and MC4R, and signal transduction through MC3R and MC4R.
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Affiliation(s)
- K G Mountjoy
- Departments of Physiology and Molecular Medicine and Pathology, School of Medical Sciences, Faculty of Medical and Health Sciences and Maurice Wilkins Centre for Molecular Biodiscovery, University of Auckland, Auckland, New Zealand
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Bai Q, Pérez-Sánchez H, Zhang Y, Shao Y, Shi D, Liu H, Yao X. Ligand induced change of β2 adrenergic receptor from active to inactive conformation and its implication for the closed/open state of the water channel: insight from molecular dynamics simulation, free energy calculation and Markov state model analysis. Phys Chem Chem Phys 2015; 16:15874-85. [PMID: 24962153 DOI: 10.1039/c4cp01185f] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The reported crystal structures of β2 adrenergic receptor (β2AR) reveal that the open and closed states of the water channel are correlated with the inactive and active conformations of β2AR. However, more details about the process by which the water channel states are affected by the active to inactive conformational change of β2AR remain illusive. In this work, molecular dynamics simulations are performed to study the dynamical inactive and active conformational change of β2AR induced by inverse agonist ICI 118,551. Markov state model analysis and free energy calculation are employed to explore the open and close states of the water channel. The simulation results show that inverse agonist ICI 118,551 can induce water channel opening during the conformational transition of β2AR. Markov state model (MSM) analysis proves that the energy contour can be divided into seven states. States S1, S2 and S5, which represent the active conformation of β2AR, show that the water channel is in the closed state, while states S4 and S6, which correspond to the intermediate state conformation of β2AR, indicate the water channel opens gradually. State S7, which represents the inactive structure of β2AR, corresponds to the full open state of the water channel. The opening mechanism of the water channel is involved in the ligand-induced conformational change of β2AR. These results can provide useful information for understanding the opening mechanism of the water channel and will be useful for the rational design of potent inverse agonists of β2AR.
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Affiliation(s)
- Qifeng Bai
- Department of Chemistry, Lanzhou University, Lanzhou 730000, China.
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Albano GD, Zhao J, Etling EB, Park SY, Hu H, Trudeau JB, Profita M, Wenzel SE. IL-13 desensitizes β2-adrenergic receptors in human airway epithelial cells through a 15-lipoxygenase/G protein receptor kinase 2 mechanism. J Allergy Clin Immunol 2015; 135:1144-53.e1-9. [PMID: 25819984 PMCID: PMC4426258 DOI: 10.1016/j.jaci.2015.02.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2014] [Revised: 02/05/2015] [Accepted: 02/06/2015] [Indexed: 01/09/2023]
Abstract
BACKGROUND β2-Adrenergic receptor (β2AR) agonists are critical treatments for asthma. However, receptor desensitization can lead to loss of therapeutic effects. Although desensitization to repeated use of β2-agonists is well studied, type 2 inflammation could also affect β2AR function. OBJECTIVE We sought to evaluate the effect of the type 2 cytokine IL-13 on β2AR desensitization in human airway epithelial cells (HAECs) and determine whether 15-lipoxygenase-1 (15LO1) binding with phosphatidylethanolamine-binding protein 1 (PEBP1) contributes to desensitization through release of G protein receptor kinase 2 (GRK2). METHODS HAECs in air-liquid interface culture with or without IL-13 (48 hours) or isoproterenol hydrochloride (ISO; 30 minutes) pretreatment were stimulated with ISO (10 minutes). Cyclic adenosine 3, 5-monophosphate (cAMP) levels were measured using ELISA, and β2AR and GRK2 phosphorylation was measured using Western blotting. Short interfering RNA was used for 15LO1 knockdown. Interactions of GRK2, PEBP1, and 15LO1 were detected by means of immunoprecipitation/Western blotting and immunofluorescence. HAECs and airway tissue from control subjects and asthmatic patients were evaluated for I5LO1, PEBP1, and GRK2. RESULTS Pretreatment with ISO or IL-13 decreased ISO-induced cAMP generation compared with ISO for 10 minutes alone paralleled by increases in β2AR and GRK2 phosphorylation. GRK2 associated with PEBP1 after 10 minutes of ISO in association with low phosphorylated GRK2 (pGRK2) levels. In contrast, in the presence of IL-13 plus ISO (10 minutes), binding of GRK2 to PEBP1 decreased, whereas 15LO1 binding and pGRK2 levels increased. 15LO1 knockdown restored ISO-induced cAMP generation. These findings were recapitulated in freshly brushed HAECs from cells and tissue of asthmatic patients. CONCLUSION IL-13 treatment of HAECs leads to β2AR desensitization, which involves 15LO1/PEBP1 interactions to free GRK2, and allows it to phosphorylate (and desensitize) β2ARs, suggesting that the beneficial effects of β2-agonists could be blunted in patients with type 2 associated asthma.
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Affiliation(s)
- Giusy D Albano
- University of Pittsburgh Asthma Institute at UPMC, Division of Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh, Pittsburgh, Pa; Institute of Biomedicine and Molecular Immunology, Italian National Research Council, Palermo, Italy
| | - Jinming Zhao
- University of Pittsburgh Asthma Institute at UPMC, Division of Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh, Pittsburgh, Pa.
| | - Emily B Etling
- University of Pittsburgh Asthma Institute at UPMC, Division of Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh, Pittsburgh, Pa
| | - Seo Young Park
- Center for Research on Health Care Data Center, University of Pittsburgh, Pittsburgh, Pa
| | - Haizhen Hu
- University of Pittsburgh Asthma Institute at UPMC, Division of Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh, Pittsburgh, Pa
| | - John B Trudeau
- University of Pittsburgh Asthma Institute at UPMC, Division of Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh, Pittsburgh, Pa
| | - Mirella Profita
- Institute of Biomedicine and Molecular Immunology, Italian National Research Council, Palermo, Italy
| | - Sally E Wenzel
- University of Pittsburgh Asthma Institute at UPMC, Division of Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh, Pittsburgh, Pa
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Cho HW, Shin S, Song KD, Park JW, Choi JY, Lee HK, Cho BW. Molecular Characterization and Expression Analysis of Adrenergic Receptor Beta 2 (ADRB2) Gene before and after Exercise in the Horse. ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES 2015; 28:686-90. [PMID: 25924960 PMCID: PMC4412999 DOI: 10.5713/ajas.14.0573] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Revised: 08/28/2014] [Accepted: 09/23/2014] [Indexed: 02/05/2023]
Abstract
The adrenergic receptor beta 2 (ADRB2) plays a role in various physiological responses of the muscle to exercise, such as contraction and relaxation. Given its important role in muscle function, we investigated the structure of the horse ADRB2 gene and its expression pattern after exercise to determine if it can serve as a putative biomarker for recovery. Evolutionary analyses using synonymous and non-synonymous mutation ratios, were compared with other species (human, chimpanzee, mouse, rat, cow, pig, chicken, dog, and cat), and revealed the occurrence of positive selection in the horse ADRB2 gene. In addition, expression analyses by quantitative polymerase chain reaction exhibited ubiquitous distribution of horse ADRB2 in various tissues including lung, skeletal muscle, kidney, thyroid, appendix, colon, spinal cord and heart, with the highest expression observed in the lung. The expression of ADRB2 in skeletal muscle was significantly up-regulated about four folds 30 minutes post-exercise compared to pre-exercise. The expression level of ADRB2 in leukocytes, which could be collected with convenience compared with other tissues in horse, increased until 60 min after exercise but decreased afterward until 120 min, suggesting the ADRB2 expression levels in leukocytes could be a useful biomarker to check the early recovery status of horse after exercise. In conclusion, we identified horse ADRB2 gene and analyzed expression profiles in various tissues. Additionally, analysis of ADBR2 gene expression in leukocytes could be a useful biomarker useful for evaluation of early recovery status after exercise in racing horses.
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Affiliation(s)
- Hyun-Woo Cho
- Department of Animal Science, College of Natural Resources and Life Sciences, Pusan National University, Miryang 627-702, Korea
| | - Sangsu Shin
- Life and Industry Convergence Research Institute, College of Natural Resources and Life Sciences, Pusan National University, Miryang 627-702, Korea
| | - Ki-Duk Song
- Genomic informatics Center, Hankyong National University, Anseong 456-749, Korea
| | - Jeong-Woong Park
- Department of Animal Science, College of Natural Resources and Life Sciences, Pusan National University, Miryang 627-702, Korea
| | - Jae-Young Choi
- Department of Animal Science, College of Natural Resources and Life Sciences, Pusan National University, Miryang 627-702, Korea
| | - Hak-Kyo Lee
- Genomic informatics Center, Hankyong National University, Anseong 456-749, Korea
| | - Byung-Wook Cho
- Department of Animal Science, College of Natural Resources and Life Sciences, Pusan National University, Miryang 627-702, Korea
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Multiple conformational states in retrospective virtual screening - homology models vs. crystal structures: beta-2 adrenergic receptor case study. J Cheminform 2015; 7:13. [PMID: 25949744 PMCID: PMC4420846 DOI: 10.1186/s13321-015-0062-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2014] [Accepted: 03/17/2015] [Indexed: 11/30/2022] Open
Abstract
Background Distinguishing active from inactive compounds is one of the crucial problems of molecular docking, especially in the context of virtual screening experiments. The randomization of poses and the natural flexibility of the protein make this discrimination even harder. Some of the recent approaches to post-docking analysis use an ensemble of receptor models to mimic this naturally occurring conformational diversity. However, the optimal number of receptor conformations is yet to be determined. In this study, we compare the results of a retrospective screening of beta-2 adrenergic receptor ligands performed on both the ensemble of receptor conformations extracted from ten available crystal structures and an equal number of homology models. Additional analysis was also performed for homology models with up to 20 receptor conformations considered. Results The docking results were encoded into the Structural Interaction Fingerprints and were automatically analyzed by support vector machine. The use of homology models in such virtual screening application was proved to be superior in comparison to crystal structures. Additionally, increasing the number of receptor conformational states led to enhanced effectiveness of active vs. inactive compounds discrimination. Conclusions For virtual screening purposes, the use of homology models was found to be most beneficial, even in the presence of crystallographic data regarding the conformational space of the receptor. The results also showed that increasing the number of receptors considered improves the effectiveness of identifying active compounds by machine learning methods. Comparison of machine learning results obtained for various number of beta-2 AR homology models and crystal structures. ![]()
Electronic supplementary material The online version of this article (doi:10.1186/s13321-015-0062-x) contains supplementary material, which is available to authorized users.
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Bai Q, Shao Y, Pan D, Zhang Y, Liu H, Yao X. Search for β2 adrenergic receptor ligands by virtual screening via grid computing and investigation of binding modes by docking and molecular dynamics simulations. PLoS One 2014; 9:e107837. [PMID: 25229694 PMCID: PMC4168136 DOI: 10.1371/journal.pone.0107837] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Accepted: 08/23/2014] [Indexed: 11/19/2022] Open
Abstract
We designed a program called MolGridCal that can be used to screen small molecule database in grid computing on basis of JPPF grid environment. Based on MolGridCal program, we proposed an integrated strategy for virtual screening and binding mode investigation by combining molecular docking, molecular dynamics (MD) simulations and free energy calculations. To test the effectiveness of MolGridCal, we screened potential ligands for β2 adrenergic receptor (β2AR) from a database containing 50,000 small molecules. MolGridCal can not only send tasks to the grid server automatically, but also can distribute tasks using the screensaver function. As for the results of virtual screening, the known agonist BI-167107 of β2AR is ranked among the top 2% of the screened candidates, indicating MolGridCal program can give reasonable results. To further study the binding mode and refine the results of MolGridCal, more accurate docking and scoring methods are used to estimate the binding affinity for the top three molecules (agonist BI-167107, neutral antagonist alprenolol and inverse agonist ICI 118,551). The results indicate agonist BI-167107 has the best binding affinity. MD simulation and free energy calculation are employed to investigate the dynamic interaction mechanism between the ligands and β2AR. The results show that the agonist BI-167107 also has the lowest binding free energy. This study can provide a new way to perform virtual screening effectively through integrating molecular docking based on grid computing, MD simulations and free energy calculations. The source codes of MolGridCal are freely available at http://molgridcal.codeplex.com.
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Affiliation(s)
- Qifeng Bai
- Department of Chemistry, Lanzhou University, Lanzhou, China
- School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
| | - Yonghua Shao
- Department of Chemistry, Lanzhou University, Lanzhou, China
| | - Dabo Pan
- Department of Chemistry, Lanzhou University, Lanzhou, China
| | - Yang Zhang
- School of Information Science & Engineering, Lanzhou University, Lanzhou, China
| | - Huanxiang Liu
- School of Pharmacy, Lanzhou University, Lanzhou, China
| | - Xiaojun Yao
- Department of Chemistry, Lanzhou University, Lanzhou, China
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Taipa, Macau, China
- * E-mail:
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Yokoe N, Yamaguchi E, Nishimura M, Tanaka H, Takahashi A, Baba K, Gosho M, Okada S. UGT1A1*28 is associated with greater decrease in serum K⁺ levels following oral intake of procaterol. J Asthma 2014; 52:240-5. [PMID: 25171434 DOI: 10.3109/02770903.2014.957766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND AND OBJECTIVE Procaterol is a potent β2-agonist frequently used for the management of asthma and chronic obstructive pulmonary disease. The efficacy and adverse effects of β2-agonists are heterogeneous in individual patients, which may be partly caused by genetic variations in metabolizing enzymes and receptor molecules. The present study was designed to analyze the relationship between gene polymorphisms and physiological effects of procaterol in healthy subjects. METHODS Ninety-two non-smoking healthy volunteers were given 1 µg/kg body weight (max 50 µg) of procaterol as a dry syrup preparation, and the serum concentrations of procaterol, serum K(+), and the physical responses were monitored for 240 min. We genotyped β2-adrenergic receptor (ADRB2) (Arg16Gly and Gln27Glu), cytochrome P450 3A4 (rs2246709, rs4646437), and uridine diphosphate glucuronosyltransferase 1A1 (UGT1A1) (rs4148323 [allele A, *6], rs12479045, rs4148328, rs4663971, rs12052787, rs4148329, A (TA)6/7 TAA [seven-repeat allele, *28]). Procaterol concentrations in serum were measured by liquid chromatography-tandem mass spectrometry. RESULTS No gene polymorphisms affected serum procaterol concentrations. Meanwhile, overall serum K(+) level changes were significantly lower in carriers of UGT1A1*28 than in non-carriers after correcting for strong effects of serum procaterol concentrations and baseline K(+) levels. No other polymorphisms were associated with serum K(+) levels. None of polymorphisms of ADRB2 were associated with any physical responses. CONCLUSION The present study indicates that significant hypokalemia may occur in carriers of UGT1A1*28 by systemic administration of procaterol and potentially by other β2-agonists metabolized in the liver.
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Affiliation(s)
- Norihito Yokoe
- Division of Respiratory Medicine and Allergology, Department of Internal Medicine, Aichi Medical University , Nagakute , Japan
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MacKay RJ, Mallicote M, Hernandez JA, Craft WF, Conway JA. A review of anhidrosis in horses. EQUINE VET EDUC 2014. [DOI: 10.1111/eve.12220] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- R. J. MacKay
- Department of Large Animal Clinical Sciences; University of Florida; Gainesville USA
| | - M. Mallicote
- Department of Large Animal Clinical Sciences; University of Florida; Gainesville USA
| | - J. A. Hernandez
- Department of Large Animal Clinical Sciences; University of Florida; Gainesville USA
| | - W. F. Craft
- Department of Infectious Diseases & Pathology; University of Florida; Gainesville USA
| | - J. A. Conway
- Department of Infectious Diseases & Pathology; University of Florida; Gainesville USA
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Bai Q, Zhang Y, Ban Y, Liu H, Yao X. Computational study on the different ligands induced conformation change of β2 adrenergic receptor-Gs protein complex. PLoS One 2013; 8:e68138. [PMID: 23922653 PMCID: PMC3726664 DOI: 10.1371/journal.pone.0068138] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2013] [Accepted: 05/24/2013] [Indexed: 01/23/2023] Open
Abstract
β2 adrenergic receptor (β2AR) regulated many key physiological processes by activation of a heterotrimeric GTP binding protein (Gs protein). This process could be modulated by different types of ligands. But the details about this modulation process were still not depicted. Here, we performed molecular dynamics (MD) simulations on the structures of β2AR-Gs protein in complex with different types of ligands. The simulation results demonstrated that the agonist BI-167107 could form hydrogen bonds with Ser2035.42, Ser2075.46 and Asn2936.55 more than the inverse agonist ICI 118,551. The different binding modes of ligands further affected the conformation of β2AR. The energy landscape profiled the energy contour map of the stable and dissociated conformation of Gαs and Gβγ when different types of ligands bound to β2AR. It also showed the minimum energy pathway about the conformational change of Gαs and Gβγ along the reaction coordinates. By using interactive essential dynamics analysis, we found that Gαs and Gβγ domain of Gs protein had the tendency to separate when the inverse agonist ICI 118,551 bound to β2AR. The α5-helix had a relatively quick movement with respect to transmembrane segments of β2AR when the inverse agonist ICI 118,551 bound to β2AR. Besides, the analysis of the centroid distance of Gαs and Gβγ showed that the Gαs was separated from Gβγ during the MD simulations. Our results not only could provide details about the different types of ligands that induced conformational change of β2AR and Gs protein, but also supplied more information for different efficacies of drug design of β2AR.
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Affiliation(s)
- Qifeng Bai
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, China
| | - Yang Zhang
- School of Information Science and Engineering, Lanzhou University, Lanzhou, China
| | - Yihe Ban
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, China
| | - Huanxiang Liu
- School of Pharmacy, Lanzhou University, Lanzhou, China
| | - Xiaojun Yao
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, China
- Key Lab of Preclinical Study for New Drugs of Gansu Province, Lanzhou University, Lanzhou, China
- * E-mail:
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Mullane K, Williams M. Animal models of asthma: reprise or reboot? Biochem Pharmacol 2013; 87:131-9. [PMID: 23831953 DOI: 10.1016/j.bcp.2013.06.026] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2013] [Accepted: 06/25/2013] [Indexed: 10/26/2022]
Abstract
Animal models of disease represent the pinnacle of hierarchical research efforts to validate targets and compounds for therapeutic intervention. Yet models of asthma, particularly in the mouse, which, for practical reasons, has become the sine qua non of asthma research, have been a bone of contention for decades. With barely a nod to their limitations and an extensive history of translational failures, they continue to be used for target identification and to justify the clinical evaluation of new compounds. Recent improvements - including sensitization directly to the airways; use of more relevant allergens; development of a chronic rather than short-term condition; utilization of techniques to measure lung function beyond uninterpretable measures of airway hyperresponsiveness - are laudable but cannot bridge the chasm between the models and the myriad complexities of the human disorder and multiple asthma endophenotypes. While further model developments are necessary, including recognition of key environmental factors beyond allergens, the judicious integration with newer ex vivo and in vitro techniques, including human precision-cut lung slices, reprograming of patient-derived induced pluripotent stem cells and fibroblasts to epithelial and smooth muscle cells, and use of other clinical samples to create a more holistic depiction of activities, might improve their translational success.
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Affiliation(s)
- Kevin Mullane
- Profectus Pharma Consulting Inc., San Jose, CA, USA.
| | - Michael Williams
- Department of Molecular Pharmacology and Biological Chemistry, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
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Abstract
INTRODUCTION There is an unmet need for a new class of direct bronchodilators for the treatment of asthma and chronic obstructive lung disease. Unexpectedly, bitter taste receptors (TAS2Rs) have been localized on airway smooth muscle and when activated cause marked smooth muscle relaxation through a mechanism that is distinct from β2-adrenegic receptors. Thus TAS2R agonists have emerged as a novel class of bronchodilator. AREAS COVERED A synopsis of the TAS2R family and its biology for bitter taste perception on the tongue is provided, followed by a review of the identification and molecular and physiological characterization of TAS2R subtypes on human and mouse airway smooth muscle. The proposed molecular mechanisms leading to the relaxation response are provided, along with gaps in our understanding at certain points in the signaling cascade. Unresolved issues that may need to be considered for drug development are discussed. EXPERT OPINION TAS2R agonists show promise as a new class of highly efficacious bronchodilators for treatment of obstructive lung disease. With tens of thousands of known natural and synthetic bitter compounds, there is substantial diversity within the known agonists, and, a ready source of agents for screening and further development of an inhaled TAS2R agonist for therapeutic purposes.
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Affiliation(s)
- Stephen B Liggett
- University of South Florida Morsani College of Medicine, Departments of Internal Medicine and Molecular Pharmacology and Physiology , 12901 Bruce B. Downs Blvd, MDC02 Tampa, FL 33612 , USA.
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Odnoshivkina UG, Petrov AM, Zefirov AL. Mechanisms of delayed inotropic response of mouse atria to activation of β(2)-adrenoreceptors. DOKLADY BIOLOGICAL SCIENCES : PROCEEDINGS OF THE ACADEMY OF SCIENCES OF THE USSR, BIOLOGICAL SCIENCES SECTIONS 2012; 446:290-2. [PMID: 23129275 DOI: 10.1134/s0012496612050134] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2012] [Indexed: 11/23/2022]
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Berdeaux R, Stewart R. cAMP signaling in skeletal muscle adaptation: hypertrophy, metabolism, and regeneration. Am J Physiol Endocrinol Metab 2012; 303:E1-17. [PMID: 22354781 PMCID: PMC3404564 DOI: 10.1152/ajpendo.00555.2011] [Citation(s) in RCA: 126] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2011] [Accepted: 02/09/2012] [Indexed: 12/11/2022]
Abstract
Among organ systems, skeletal muscle is perhaps the most structurally specialized. The remarkable subcellular architecture of this tissue allows it to empower movement with instructions from motor neurons. Despite this high degree of specialization, skeletal muscle also has intrinsic signaling mechanisms that allow adaptation to long-term changes in demand and regeneration after acute damage. The second messenger adenosine 3',5'-monophosphate (cAMP) not only elicits acute changes within myofibers during exercise but also contributes to myofiber size and metabolic phenotype in the long term. Strikingly, sustained activation of cAMP signaling leads to pronounced hypertrophic responses in skeletal myofibers through largely elusive molecular mechanisms. These pathways can promote hypertrophy and combat atrophy in animal models of disorders including muscular dystrophy, age-related atrophy, denervation injury, disuse atrophy, cancer cachexia, and sepsis. cAMP also participates in muscle development and regeneration mediated by muscle precursor cells; thus, downstream signaling pathways may potentially be harnessed to promote muscle regeneration in patients with acute damage or muscular dystrophy. In this review, we summarize studies implicating cAMP signaling in skeletal muscle adaptation. We also highlight ligands that induce cAMP signaling and downstream effectors that are promising pharmacological targets.
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Affiliation(s)
- Rebecca Berdeaux
- Department of Integrative Biology and Pharmacology, University of Texas Health Science Center at Houston, Houston, TX, USA.
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Zhang D, Ma Q, Wang Z, Zhang M, Guo K, Wang F, Wu E. β2-adrenoceptor blockage induces G1/S phase arrest and apoptosis in pancreatic cancer cells via Ras/Akt/NFκB pathway. Mol Cancer 2011; 10:146. [PMID: 22118662 PMCID: PMC3250953 DOI: 10.1186/1476-4598-10-146] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2011] [Accepted: 11/26/2011] [Indexed: 11/10/2022] Open
Abstract
Background Smoking and stress, pancreatic cancer (PanCa) risk factors, stimulate nitrosamine 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK) and catecholamines production respectively. NNK and catecholamine bind the β-adrenoceptors and induce PanCa cell proliferation; and we have previously suggested that β-adrenergic antagonists may suppress proliferation and invasion and stimulate apoptosis in PanCa. To clarify the mechanism of apoptosis induced by β2-adrenergic antagonist, we hypothesize that blockage of the β2-adrenoceptor could induce G1/S phase arrest and apoptosis and Ras may be a key player in PanCa cells. Results The β1 and β2-adrenoceptor proteins were detected on the cell surface of PanCa cells from pancreatic carcinoma specimen samples by immunohistochemistry. The β2-adrenergic antagonist ICI118,551 significantly induced G1/S phase arrest and apoptosis compared with the β1-adrenergic antagonist metoprolol, which was determined by the flow cytometry assay. β2-adrenergic antagonist therapy significantly suppressed the expression of extracellular signal-regulated kinase, Akt, Bcl-2, cyclin D1, and cyclin E and induced the activation of caspase-3, caspase-9 and Bax by Western blotting. Additionally, the β2-adrenergic antagonist reduced the activation of NFκB in vitro cultured PanCa cells. Conclusions The blockage of β2-adrenoceptor markedly induced PanCa cells to arrest at G1/S phase and consequently resulted in cell death, which is possibly due to that the blockage of β2-adrenoceptor inhibited NFκB, extracellular signal-regulated kinase, and Akt pathways. Therefore, their upstream molecule Ras may be a key factor in the β2-adrenoceptor antagonist induced G1/S phase arrest and apoptosis in PanCa cells. The new pathway discovered in this study may provide an effective therapeutic strategy for PanCa.
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Affiliation(s)
- Dong Zhang
- Department of Hepatobiliary and Pancreas Surgery, First Affiliated Hospital, Xi'an Jiaotong University, Xi'an 710061, China
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The increasing challenge of discovering asthma drugs. Biochem Pharmacol 2011; 82:586-99. [PMID: 21745459 DOI: 10.1016/j.bcp.2011.06.033] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2011] [Revised: 06/23/2011] [Accepted: 06/24/2011] [Indexed: 11/23/2022]
Abstract
The prevalence of asthma continues to rise. Current drugs provide symptomatic relief to some, but not all, patients. Despite the need for new therapeutics, and a huge research effort, only four novel agents from two classes of drugs - the antileukotrienes and an anti-IgE antibody - have been approved in the last 30 years. This review highlights three particular issues that contribute to the challenge of identifying new therapeutics. First is an over-reliance on animal models of allergy to define targets and expectations of efficacy that has met with poor translation to the clinical setting. While sensitivity to particular aeroallergens is one key risk factor for asthma, atopy and asthma are not synonymous, and while about half of adult asthmatics are atopic the incidence of allergic asthma is probably <50%. The second issue is a fundamental disconnect between the directions of basic research and clinical research. Basic research has developed a detailed, reductive, unifying mechanism of antigen-induced, T helper type 2 cell-mediated airway inflammation as the root cause of asthma. In contrast, clinical research has started to identify multiple asthma phenotypes with differing cellular components, mediators and sensitivities to asthma drugs, and probably varying underlying factors including susceptibility genes. Finally, different features of asthma - bronchoconstriction, symptoms, and exacerbations - respond diversely to treatment; effects that are not captured in animal models which do not develop asthma per se, but utilize unvalidated surrogate markers. Basic research needs to better integrate and utilize the clinical research findings to improve its relevance to drug discovery efforts.
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Agonist-directed desensitization of the β2-adrenergic receptor. PLoS One 2011; 6:e19282. [PMID: 21541288 PMCID: PMC3082563 DOI: 10.1371/journal.pone.0019282] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2011] [Accepted: 03/25/2011] [Indexed: 01/22/2023] Open
Abstract
The β2-adrenergic receptor (β2AR) agonists with reduced tachyphylaxis may offer new therapeutic agents with improved tolerance profile. However, receptor desensitization assays are often inferred at the single signaling molecule level, thus ligand-directed desensitization is poorly understood. Here we report a label-free biosensor whole cell assay with microfluidics to determine ligand-directed desensitization of the β2AR. Together with mechanistic deconvolution using small molecule inhibitors, the receptor desensitization and resensitization patterns under the short-term agonist exposure manifested the long-acting agonism of salmeterol, and differentiated the mechanisms of agonist-directed desensitization between a full agonist epinephrine and a partial agonist pindolol. This study reveals the cellular mechanisms of agonist-selective β2AR desensitization at the whole cell level.
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Adner M, Larsson B, Säfholm J, Naya I, Miller-Larsson A. Budesonide prevents cytokine-induced decrease of the relaxant responses to formoterol and terbutaline, but not to salmeterol, in mouse trachea. J Pharmacol Exp Ther 2010; 333:273-80. [PMID: 20061444 DOI: 10.1124/jpet.109.156224] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
During asthma exacerbations, increased airway inflammation may impair the effects of beta(2)-adrenoceptor (beta(2)AR) agonists. It is unclear whether this impairment is prevented by inhaled glucocorticoids (GCs). We have investigated the relaxation of carbachol-contracted mouse tracheal segments to the beta(2)AR agonists formoterol, terbutaline, and salmeterol. The segments were pre-exposed for 4 days to the proinflammatory cytokines tumor necrosis factor alpha (100 ng/ml) and interleukin-1beta (10 ng/ml) with or without the GC, budesonide (1 microM). Formoterol and terbutaline induced greater maximal relaxation (R(max)) than salmeterol. The cytokines decreased R(max) of all beta(2)AR agonists, whereas budesonide had no effect. However, after concomitant treatment with cytokines and budesonide, the R(max) values of formoterol and terbutaline were not impaired, whereas budesonide did not prevent the decrease in the R(max) of salmeterol. A similar pattern was observed for cAMP production by the agonists. In tracheal smooth muscle, beta(2)AR mRNA was not affected by the cytokines but increased with budesonide. However, the cytokines markedly increased cyclooxygenase (COX)-2 mRNA expression, which may lead to heterologous desensitization of beta(2)AR. It is noteworthy that the cytokine-induced increase of COX-2 was blocked by concomitant budesonide suggesting that heterologous desensitization of beta(2)AR by the cytokines may be prevented by budesonide treatment. Budesonide prevented cytokine-induced impairment of the tracheal relaxation and beta(2)AR/cAMP signaling for formoterol but not for salmeterol. This suggests that differences exist between formoterol and salmeterol in beta(2)AR coupling/activation and/or signal transduction upstream of cAMP. These results imply that maximal bronchodilator effects of formoterol, but not of salmeterol, are maintained by budesonide treatment during periods with increased inflammation, such as asthma exacerbations.
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Affiliation(s)
- Mikael Adner
- Department of Experimental Asthma and Allergy Research, Institute of Environmental Medicine, Scheeles väg 1, Karolinska Institutet, SE-17177 Stockholm, Sweden.
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