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Mesquita T, Lin YN, Chen S, Lee Y, Miguel-dos-Santos R, Atici AE, Fishbein MC, Rivas MN, Arditi M, Cingolani E. Inhibition of IL-1 Ameliorates Cardiac Dysfunction and Arrhythmias in a Murine Model of Kawasaki Disease. Arterioscler Thromb Vasc Biol 2024; 44:e117-e130. [PMID: 38385289 PMCID: PMC10978283 DOI: 10.1161/atvbaha.123.320382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Accepted: 02/09/2024] [Indexed: 02/23/2024]
Abstract
BACKGROUND Kawasaki disease (KD) is an acute febrile illness and systemic vasculitis often associated with cardiac sequelae, including arrhythmias. Abundant evidence indicates a central role for IL (interleukin)-1 and TNFα (tumor necrosis factor-alpha) signaling in the formation of arterial lesions in KD. We aimed to investigate the mechanisms underlying the development of electrophysiological abnormalities in a murine model of KD vasculitis. METHODS Lactobacillus casei cell wall extract-induced KD vasculitis model was used to investigate the therapeutic efficacy of clinically relevant IL-1Ra (IL-1 receptor antagonist) and TNFα neutralization. Echocardiography, in vivo electrophysiology, whole-heart optical mapping, and imaging were performed. RESULTS KD vasculitis was associated with impaired ejection fraction, increased ventricular tachycardia, prolonged repolarization, and slowed conduction velocity. Since our transcriptomic analysis of human patients showed elevated levels of both IL-1β and TNFα, we asked whether either cytokine was linked to the development of myocardial dysfunction. Remarkably, only inhibition of IL-1 signaling by IL-1Ra but not TNFα neutralization was able to prevent changes in ejection fraction and arrhythmias, whereas both IL-1Ra and TNFα neutralization significantly improved vasculitis and heart vessel inflammation. The treatment of L casei cell wall extract-injected mice with IL-1Ra also restored conduction velocity and improved the organization of Cx43 (connexin 43) at the intercalated disk. In contrast, in mice with gain of function of the IL-1 signaling pathway, L casei cell wall extract induced spontaneous ventricular tachycardia and premature deaths. CONCLUSIONS Our results characterize the electrophysiological abnormalities associated with L casei cell wall extract-induced KD and show that IL-1Ra is more effective in preventing KD-induced myocardial dysfunction and arrhythmias than anti-TNFα therapy. These findings support the advancement of clinical trials using IL-1Ra in patients with KD.
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Affiliation(s)
- Thassio Mesquita
- Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Yen-Nien Lin
- Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Shuang Chen
- Department of Pediatrics, Division of Infectious Diseases and Immunology, Guerin Children’s at Cedars-Sinai Medical Center, Los Angeles, California, USA
- Infectious and Immunologic Diseases Research Center (IIDRC) and Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Youngho Lee
- Department of Pediatrics, Division of Infectious Diseases and Immunology, Guerin Children’s at Cedars-Sinai Medical Center, Los Angeles, California, USA
- Infectious and Immunologic Diseases Research Center (IIDRC) and Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | | | - Asli E. Atici
- Department of Pediatrics, Division of Infectious Diseases and Immunology, Guerin Children’s at Cedars-Sinai Medical Center, Los Angeles, California, USA
- Infectious and Immunologic Diseases Research Center (IIDRC) and Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Michael C. Fishbein
- Department of Pathology, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | - Magali Noval Rivas
- Department of Pediatrics, Division of Infectious Diseases and Immunology, Guerin Children’s at Cedars-Sinai Medical Center, Los Angeles, California, USA
- Infectious and Immunologic Diseases Research Center (IIDRC) and Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Moshe Arditi
- Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA
- Department of Pediatrics, Division of Infectious Diseases and Immunology, Guerin Children’s at Cedars-Sinai Medical Center, Los Angeles, California, USA
- Infectious and Immunologic Diseases Research Center (IIDRC) and Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Eugenio Cingolani
- Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA
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Good SD, Rerkpichaisuth V, Fishbein MC, Ardehali A, Kermani TA. Multivalvular Cardiac Disease in a Young Woman With Hypocomplementemic Urticarial Vasculitis. Arthritis Care Res (Hoboken) 2024; 76:155-163. [PMID: 37652750 DOI: 10.1002/acr.25225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 08/14/2023] [Accepted: 08/07/2023] [Indexed: 09/02/2023]
Affiliation(s)
- Samuel D Good
- Division of Rheumatology, University of California, Los Angeles, CA, United States
| | - Vilasinee Rerkpichaisuth
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
- Department of Pathology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Michael C Fishbein
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
| | - Abbas Ardehali
- Division of Cardiac Surgery, David Geffen School of Medicine, University of California, Los Angeles, CA, United States
| | - Tanaz A Kermani
- Division of Rheumatology, University of California, Los Angeles, CA, United States
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Magaki S, Zhang T, Han K, Hilda M, Yong WH, Achim C, Fishbein G, Fishbein MC, Garner O, Salamon N, Williams CK, Valdes-Sueiras MA, Hsu JJ, Kelesidis T, Mathisen GE, Lavretsky H, Singer EJ, Vinters HV. HIV and COVID-19: two pandemics with significant (but different) central nervous system complications. Free Neuropathol 2024; 5:5-5. [PMID: 38469363 PMCID: PMC10925920 DOI: 10.17879/freeneuropathology-2024-5343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Accepted: 03/02/2024] [Indexed: 03/13/2024]
Abstract
Human immunodeficiency virus (HIV) and severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) cause significant neurologic disease. Central nervous system (CNS) involvement of HIV has been extensively studied, with well-documented invasion of HIV into the brain in the initial stage of infection, while the acute effects of SARS-CoV-2 in the brain are unclear. Neuropathologic features of active HIV infection in the brain are well characterized whereas neuropathologic findings in acute COVID-19 are largely non-specific. On the other hand, neuropathologic substrates of chronic dysfunction in both infections, as HIV-associated neurocognitive disorders (HAND) and post-COVID conditions (PCC)/long COVID are unknown. Thus far, neuropathologic studies on patients with HAND in the era of combined antiretroviral therapy have been inconclusive, and autopsy studies on patients diagnosed with PCC have yet to be published. Further longitudinal, multidisciplinary studies on patients with HAND and PCC and neuropathologic studies in comparison to controls are warranted to help elucidate the mechanisms of CNS dysfunction in both conditions.
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Affiliation(s)
- Shino Magaki
- Section of Neuropathology, Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles CA, USA
| | - Ting Zhang
- Section of Neuropathology, Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles CA, USA
| | - Karam Han
- Section of Neuropathology, Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles CA, USA
| | - Mirbaha Hilda
- Section of Neuropathology, Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles CA, USA
| | - William H. Yong
- Department of Pathology and Laboratory Medicine, University of California-Irvine School of Medicine, Irvine, CA, USA
| | - Cristian Achim
- Department of Psychiatry, University of California San Diego, La Jolla, San Diego, CA, USA
| | - Gregory Fishbein
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - Michael C. Fishbein
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - Omai Garner
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - Noriko Salamon
- Department of Radiological Sciences, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - Christopher K. Williams
- Section of Neuropathology, Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles CA, USA
| | - Miguel A. Valdes-Sueiras
- Department of Neurology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - Jeffrey J. Hsu
- Division of Cardiology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - Theodoros Kelesidis
- Department of Medicine, Division of Infectious Diseases, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - Glenn E. Mathisen
- Department of Infectious Diseases, Olive View-University of California Los Angeles Medical Center, Sylmar, CA, USA
| | - Helen Lavretsky
- Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - Elyse J. Singer
- Department of Neurology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - Harry V. Vinters
- Section of Neuropathology, Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles CA, USA
- Department of Neurology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA
- Brain Research Institute, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA
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4
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Belperio JA, Fishbein MC, Abtin F, Channick J, Balasubramanian SA, Lynch Iii JP. Pulmonary sarcoidosis: A comprehensive review: Past to present. J Autoimmun 2023:103107. [PMID: 37865579 DOI: 10.1016/j.jaut.2023.103107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 08/21/2023] [Accepted: 08/23/2023] [Indexed: 10/23/2023]
Abstract
Sarcoidosis is a sterile non-necrotizing granulomatous disease without known causes that can involve multiple organs with a predilection for the lung and thoracic lymph nodes. Worldwide it is estimated to affect 2-160/100,000 people and has a mortality rate over 5 years of approximately 7%. For sarcoidosis patients, the cause of death is due to sarcoid in 60% of the cases, of which up to 80% are from advanced cardiopulmonary failure (pulmonary hypertension and respiratory microbial infections) in all races except in Japan were greater than 70% of the sarcoidosis deaths are due to cardiac sarcoidosis. Scadding stages for pulmonary sarcoidosis associates with clinical outcomes. Stages I and II have radiographic remission in approximately 30%-80% of cases. Stage III only has a 10%-40% chance of resolution, while stage IV has no change of resolution. Up to 40% of pulmonary sarcoidosis patients progress to stage IV disease with lung parenchyma fibroplasia, bronchiectasis with hilar retraction and fibrocystic disease. These patients are at highest risk for the development of precapillary pulmonary hypertension, which may occur in up to 70% of these patients. Sarcoid patients with pre-capillary pulmonary hypertension can respond to targeted pulmonary arterial hypertension medications. Stage IV fibrocytic sarcoidosis with significant pulmonary physiologic impairment, >20% fibrosis on HRCT or pre-capillary pulmonary hypertension have the highest risk of mortality, which can be >40% at 5-years. First line treatment for patients who are symptomatic (cough and dyspnea) with parenchymal infiltrates and abnormal pulmonary function testing (PFT) is oral glucocorticoids, such as prednisone with a typical starting dose of 20-40 mg daily for 2 weeks to 2 months. Prednisone can be tapered over 6-18 months if symptoms, spirometry, PFTs, and radiographs improve. Prolonged prednisone may be required to stabilize disease. Patients requiring prolonged prednisone ≥10 mg/day or those with adverse effects due to glucocorticoids may be prescribed second and third line treatements. Second and third line treatments include immunosuppressive agents (e.g., methotrexate and azathioprine) and anti-tumor necrosis factor (TNF) medication; respectively. Effective treatments for advanced fibrocystic pulmonary disease are being explored. Despite different treatments, relapse rates range from 13% to 75% depending on the stage of sarcoid, number of organs involved, socioeconomic status, and geography. CONCLUSION: The mortality rate for sarcoidosis over a 5 year follow up is approximately 7%. Unfortunately, 10%-40% of patients with sarcoidosis develop progressive pulmonary disease, and >60% of deaths resulting from sarcoidosis are due to advance cardiopulmonary disease. Oral glucocorticoids are the first line treatment, while methotrexate and azathioprine are considered second and anti-TNF agents are third line treatments that are used solely or as glucocorticoid sparing agents for symptomatic extrapulmonary or pulmonary sarcoidosis with infiltrates on chest radiographs and abnormal PFT. Relapse rates have ranged from 13% to 75% depending on the population studied.
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Affiliation(s)
- John A Belperio
- The Division of Pulmonary and Critical Care Medicine, Clinical Immunology, and Allergy, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA.
| | - Michael C Fishbein
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Fereidoun Abtin
- Department of Thoracic Radiology, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Jessica Channick
- The Division of Pulmonary and Critical Care Medicine, Clinical Immunology, and Allergy, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Shailesh A Balasubramanian
- The Division of Pulmonary and Critical Care Medicine, Clinical Immunology, and Allergy, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Joseph P Lynch Iii
- The Division of Pulmonary and Critical Care Medicine, Clinical Immunology, and Allergy, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
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5
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Mori S, Beyer RS, Bernardes de Souza B, Sorg JM, Hoover DB, Sacks HS, Fishbein MC, Chang G, Peacock WJ, St. John MA, Law J, Symonds ME, Ajijola OA, Shivkumar K, Srikanthan P. Sympathetic innervation of the supraclavicular brown adipose tissue: A detailed anatomical study. PLoS One 2023; 18:e0290455. [PMID: 37792692 PMCID: PMC10550181 DOI: 10.1371/journal.pone.0290455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 08/08/2023] [Indexed: 10/06/2023] Open
Abstract
BACKGROUND The supraclavicular fossa is the dominant location for human brown adipose tissue (BAT). Activation of BAT promotes non-shivering thermogenesis by utilization of glucose and free fatty acids and has been the focus of pharmacological and non-pharmacological approaches for modulation in order to improve body weight and glucose homeostasis. Sympathetic neural control of supraclavicular BAT has received much attention, but its innervation has not been extensively investigated in humans. METHODS Dissection of the cervical region in human cadavers was performed to find the distribution of sympathetic nerve branches to supraclavicular fat pad. Furthermore, proximal segments of the 4th cervical nerve were evaluated histologically to assess its sympathetic components. RESULTS Nerve branches terminating in supraclavicular fat pad were identified in all dissections, including those from the 3rd and 4th cervical nerves and from the cervical sympathetic plexus. Histology of the proximal segments of the 4th cervical nerves confirmed tyrosine hydroxylase positive thin nerve fibers in all fascicles with either a scattered or clustered distribution pattern. The scattered pattern was more predominant than the clustered pattern (80% vs. 20%) across cadavers. These sympathetic nerve fibers occupied only 2.48% of the nerve cross sectional area on average. CONCLUSIONS Human sympathetic nerves use multiple pathways to innervate the supraclavicular fat pad. The present finding serves as a framework for future clinical approaches to activate human BAT in the supraclavicular region.
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Affiliation(s)
- Shumpei Mori
- David Geffen School of Medicine at UCLA, UCLA Health System, University of California Los Angeles (UCLA) Cardiac Arrhythmia Center, Los Angeles, CA, United States of America
| | - Ryan S. Beyer
- David Geffen School of Medicine at UCLA, UCLA Health System, University of California Los Angeles (UCLA) Cardiac Arrhythmia Center, Los Angeles, CA, United States of America
| | - Breno Bernardes de Souza
- David Geffen School of Medicine at UCLA, UCLA Health System, University of California Los Angeles (UCLA) Cardiac Arrhythmia Center, Los Angeles, CA, United States of America
| | - Julie M. Sorg
- David Geffen School of Medicine at UCLA, UCLA Health System, University of California Los Angeles (UCLA) Cardiac Arrhythmia Center, Los Angeles, CA, United States of America
| | - Donald B. Hoover
- Department of Biomedical Sciences, Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States of America
- Center of Excellence in Inflammation, Infectious Disease and Immunity, East Tennessee State University, Johnson City, TN, United States of America
| | - Harold S. Sacks
- VA Endocrinology and Diabetes Division, Department of Medicine, UCLA, Los Angeles, CA, United States of America
| | - Michael C. Fishbein
- Department of Pathology and Laboratory Medicine, UCLA, Los Angeles, CA, United States of America
| | - Grace Chang
- Department of Surgery, UCLA, Los Angeles, CA, United States of America
| | | | - Maie A. St. John
- Department of Head and Neck Surgery, UCLA, Los Angeles, CA, United States of America
| | - James Law
- Academic Unit of Population and Lifespan Sciences, Centre for Perinatal Research, School of Medicine, University of Nottingham, Nottingham, United Kingdom
- Nottingham Children’s Hospital, Nottingham University Hospitals NHS Trust, Nottingham, United Kingdom
| | - Micheal E. Symonds
- Academic Unit of Population and Lifespan Sciences, Centre for Perinatal Research, School of Medicine, University of Nottingham, Nottingham, United Kingdom
| | - Olujimi A. Ajijola
- David Geffen School of Medicine at UCLA, UCLA Health System, University of California Los Angeles (UCLA) Cardiac Arrhythmia Center, Los Angeles, CA, United States of America
| | - Kalyanam Shivkumar
- David Geffen School of Medicine at UCLA, UCLA Health System, University of California Los Angeles (UCLA) Cardiac Arrhythmia Center, Los Angeles, CA, United States of America
| | - Preethi Srikanthan
- Division of Endocrinology UCLA, UCLA Health System, David Geffen School of Medicine at UCLA, Los Angeles, CA, United States of America
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Sato T, Adlaka K, Moussa ID, Hanna P, Do DH, Fishbein MC, Shivkumar K, Mori S. Understanding Cardiac Anatomy and Imaging to Improve Safety of Procedures: The Right Ventricle. JACC Cardiovasc Imaging 2023; 16:1348-1352. [PMID: 37656118 DOI: 10.1016/j.jcmg.2023.06.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 05/30/2023] [Accepted: 06/28/2023] [Indexed: 09/02/2023]
Abstract
Right ventricular perforation is a catastrophic complication of catheter-based intracardiac interventions. In this context, appreciation of 5 attachments of the right ventricle to the aortoventricular unit is essential to recognize extent of right ventricular free wall. We herein present progressive dissection and virtual and photographic endoscopic images of the hearts without distortion. Real dissection images show us how and where to avoid this complication by indicating the true muscular component of the ventricular septum. Both virtual and photographic endoscopic images, when combined with transillumination, beautifully shows the thin wall regions and trabeculations with unprecedented clarity. We believe recognition of these anatomical nuances can reduce the likelihood of right ventricular perforation.
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Affiliation(s)
- Takanori Sato
- Cardiac Arrhythmia Center, University of California-Los Angeles, Los Angeles, California, USA; Cardiovascular & Interventional Programs, University of California-Los Angeles Health System, David Geffen School of Medicine at University of California-Los Angeles, Los Angeles, California, USA
| | - Kyle Adlaka
- Cardiac Arrhythmia Center, University of California-Los Angeles, Los Angeles, California, USA; Cardiovascular & Interventional Programs, University of California-Los Angeles Health System, David Geffen School of Medicine at University of California-Los Angeles, Los Angeles, California, USA; Postbaccalaureate Premedical Program, University of Southern California, Los Angeles, California, USA
| | - Issam D Moussa
- Carle Illinois College of Medicine, University of Illinois, Carle Heart and Vascular Institute, Champaign, Illinois, USA
| | - Peter Hanna
- Cardiac Arrhythmia Center, University of California-Los Angeles, Los Angeles, California, USA; Cardiovascular & Interventional Programs, University of California-Los Angeles Health System, David Geffen School of Medicine at University of California-Los Angeles, Los Angeles, California, USA
| | - Duc H Do
- Cardiac Arrhythmia Center, University of California-Los Angeles, Los Angeles, California, USA; Cardiovascular & Interventional Programs, University of California-Los Angeles Health System, David Geffen School of Medicine at University of California-Los Angeles, Los Angeles, California, USA
| | - Michael C Fishbein
- Department of Pathology and Laboratory Medicine, University of California-Los Angeles, Los Angeles, California USA
| | - Kalyanam Shivkumar
- Cardiac Arrhythmia Center, University of California-Los Angeles, Los Angeles, California, USA; Cardiovascular & Interventional Programs, University of California-Los Angeles Health System, David Geffen School of Medicine at University of California-Los Angeles, Los Angeles, California, USA
| | - Shumpei Mori
- Cardiac Arrhythmia Center, University of California-Los Angeles, Los Angeles, California, USA; Cardiovascular & Interventional Programs, University of California-Los Angeles Health System, David Geffen School of Medicine at University of California-Los Angeles, Los Angeles, California, USA.
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7
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Tsai W, Hung TC, Kusayama T, Han S, Fishbein MC, Chen LS, Chen PS. Autonomic Modulation of Atrial Fibrillation. JACC Basic Transl Sci 2023; 8:1398-1410. [PMID: 38094692 PMCID: PMC10714180 DOI: 10.1016/j.jacbts.2023.03.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 03/14/2023] [Accepted: 03/14/2023] [Indexed: 01/13/2024]
Abstract
The autonomic nervous system plays a vital role in cardiac arrhythmias, including atrial fibrillation (AF). Therefore, reducing the sympathetic tone via neuromodulation methods may be helpful in AF control. Myocardial ischemia is associated with increased sympathetic tone and incidence of AF. It is an excellent disease model to understand the neural mechanisms of AF and the effects of neuromodulation. This review summarizes the relationship between autonomic nervous system and AF and reviews methods and mechanisms of neuromodulation. This review proposes that noninvasive or minimally invasive neuromodulation methods will be most useful in the future management of AF.
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Affiliation(s)
- Wei–Chung Tsai
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Tien-Chi Hung
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Takashi Kusayama
- Department of Cardiovascular Medicine, Kanazawa University Graduate School of Medical Sciences Kanazawa, Kanazawa, Japan
| | - Seongwook Han
- Department of Cardiology, Keimyung University Dongsan Medical Center, Daegu, Korea
| | - Michael C. Fishbein
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at University of California-Los Angeles, Los Angeles, California, USA
| | - Lan S. Chen
- Department of Cardiology, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Peng-Sheng Chen
- Department of Cardiology, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA
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8
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Chen M, Neverova N, Xu S, Suwannaphoom K, Lluri G, Tamboline M, Duarte S, Fishbein MC, Luo Y, Packard RRS. Flexible 3-D Electrochemical Impedance Spectroscopy Sensors Incorporating Phase Delay for Comprehensive Characterization of Atherosclerosis. bioRxiv 2023:2023.09.20.558681. [PMID: 37786712 PMCID: PMC10541620 DOI: 10.1101/2023.09.20.558681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
Background Distinguishing quiescent from rupture-prone atherosclerotic lesions has significant translational and clinical implications. Electrochemical impedance spectroscopy (EIS) characterizes biological tissues by assessing impedance and phase delay responses to alternating current at multiple frequencies.We evaluated invasive 6-point stretchable EIS sensors over a spectrum of experimental atherosclerosis and compared results with intravascular ultrasound (IVUS), molecular positron emission tomography (PET) imaging, and histology. Methods Male New Zealand White rabbits (n=16) were placed on a high-fat diet for 4 or 8 weeks, with or without endothelial denudation via balloon injury of the infrarenal abdominal aorta. Rabbits underwent in vivo micro-PET imaging of the abdominal aorta with 68 Ga-DOTATATE, 18 F-NaF, and 18 F-FDG, followed by invasive interrogation via IVUS and EIS. Background signal corrected values of impedance and phase delay were determined. Abdominal aortic samples were collected for histological analyses. Analyses were performed blindly. Results Phase delay correlated with anatomic markers of plaque burden, namely intima/media ratio (r=0.883 at 1 kHz, P =0.004) and %stenosis (r=0.901 at 0.25 kHz, P =0.002), similar to IVUS. Moreover, impedance was associated with markers of plaque activity including macrophage infiltration (r=0.813 at 10 kHz, P =0.008) and macrophage/smooth muscle cell (SMC) ratio (r=0.813 at 25 kHz, P =0.026). 68 Ga-DOTATATE correlated with intimal macrophage infiltration (r=0.861, P =0.003) and macrophage/SMC ratio (r=0.831, P =0.021), 18 F-NaF with SMC infiltration (r=-0.842, P =0.018), and 18 F-FDG correlated with macrophage/SMC ratio (r=0.787, P =0.036). Conclusions EIS with phase delay integrates key atherosclerosis features that otherwise require multiple complementary invasive and non-invasive imaging approaches to capture. These findings indicate the potential of invasive EIS as a comprehensive modality for evaluation of human coronary artery disease. GRAPHICAL ABSTRACT HIGHLIGHTS Electrochemical impedance spectroscopy (EIS) characterizes both anatomic features - via phase delay; and inflammatory activity - via impedance profiles, of underlying atherosclerosis.EIS can serve as an integrated, comprehensive metric for atherosclerosis evaluation by capturing morphological and compositional plaque characteristics that otherwise require multiple imaging modalities to obtain.Translation of these findings from animal models to human coronary artery disease may provide an additional strategy to help guide clinical management.
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9
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Chen PS, Fishbein MC. Neural Remodeling After Myocardial Infarction: The Importance of Heterogeneity. JACC Clin Electrophysiol 2023; 9:1665-1667. [PMID: 37480865 DOI: 10.1016/j.jacep.2023.05.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 05/13/2023] [Indexed: 07/24/2023]
Affiliation(s)
- Peng-Sheng Chen
- Department of Cardiology, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA.
| | - Michael C Fishbein
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
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10
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Kocatürk B, Lee Y, Nosaka N, Abe M, Martinon D, Lane ME, Moreira D, Chen S, Fishbein MC, Porritt RA, Franklin BS, Noval Rivas M, Arditi M. Platelets exacerbate cardiovascular inflammation in a murine model of Kawasaki disease vasculitis. JCI Insight 2023; 8:e169855. [PMID: 37279077 PMCID: PMC10443810 DOI: 10.1172/jci.insight.169855] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 05/31/2023] [Indexed: 06/07/2023] Open
Abstract
Kawasaki disease (KD) is the leading cause of acquired heart disease among children. Increased platelet counts and activation are observed during the course of KD, and elevated platelet counts are associated with higher risks of developing intravenous immunoglobulin resistance and coronary artery aneurysms. However, the role of platelets in KD pathogenesis remains unclear. Here, we analyzed transcriptomics data generated from the whole blood of patients with KD and discovered changes in the expression of platelet-related genes during acute KD. In the Lactobacillus casei cell wall extract (LCWE) murine model of KD vasculitis, LCWE injection increased platelet counts and the formation of monocyte-platelet aggregates (MPAs), upregulated the concentration of soluble P-selectin, and increased circulating thrombopoietin and interleukin 6 (IL-6). Furthermore, platelet counts correlated with the severity of cardiovascular inflammation. Genetic depletion of platelets (Mpl-/- mice) or treatment with an anti-CD42b antibody significantly reduced LCWE-induced cardiovascular lesions. Furthermore, in the mouse model, platelets promoted vascular inflammation via the formation of MPAs, which likely amplified IL-1B production. Altogether, our results indicate that platelet activation exacerbates the development of cardiovascular lesions in a murine model of KD vasculitis. These findings enhance our understanding of KD vasculitis pathogenesis and highlight MPAs, which are known to enhance IL-1B production, as a potential therapeutic target for this disorder.
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Affiliation(s)
- Begüm Kocatürk
- Department of Pediatrics, Division of Infectious Diseases and Immunology, Guerin Children’s at Cedars-Sinai Medical Center, Los Angeles, California, USA
- Infectious and Immunologic Diseases Research Center (IIDRC), Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Youngho Lee
- Department of Pediatrics, Division of Infectious Diseases and Immunology, Guerin Children’s at Cedars-Sinai Medical Center, Los Angeles, California, USA
- Infectious and Immunologic Diseases Research Center (IIDRC), Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Nobuyuki Nosaka
- Department of Pediatrics, Division of Infectious Diseases and Immunology, Guerin Children’s at Cedars-Sinai Medical Center, Los Angeles, California, USA
- Infectious and Immunologic Diseases Research Center (IIDRC), Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Masanori Abe
- Department of Pediatrics, Division of Infectious Diseases and Immunology, Guerin Children’s at Cedars-Sinai Medical Center, Los Angeles, California, USA
- Infectious and Immunologic Diseases Research Center (IIDRC), Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Daisy Martinon
- Department of Pediatrics, Division of Infectious Diseases and Immunology, Guerin Children’s at Cedars-Sinai Medical Center, Los Angeles, California, USA
- Infectious and Immunologic Diseases Research Center (IIDRC), Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Malcolm E. Lane
- Department of Pediatrics, Division of Infectious Diseases and Immunology, Guerin Children’s at Cedars-Sinai Medical Center, Los Angeles, California, USA
- Infectious and Immunologic Diseases Research Center (IIDRC), Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Debbie Moreira
- Department of Pediatrics, Division of Infectious Diseases and Immunology, Guerin Children’s at Cedars-Sinai Medical Center, Los Angeles, California, USA
- Infectious and Immunologic Diseases Research Center (IIDRC), Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Shuang Chen
- Department of Pediatrics, Division of Infectious Diseases and Immunology, Guerin Children’s at Cedars-Sinai Medical Center, Los Angeles, California, USA
- Infectious and Immunologic Diseases Research Center (IIDRC), Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Michael C. Fishbein
- Department of Pathology, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | - Rebecca A. Porritt
- Department of Pediatrics, Division of Infectious Diseases and Immunology, Guerin Children’s at Cedars-Sinai Medical Center, Los Angeles, California, USA
- Infectious and Immunologic Diseases Research Center (IIDRC), Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Bernardo S. Franklin
- Institute of Innate Immunity, Medical Faculty, University of Bonn, Bonn, Germany
| | - Magali Noval Rivas
- Department of Pediatrics, Division of Infectious Diseases and Immunology, Guerin Children’s at Cedars-Sinai Medical Center, Los Angeles, California, USA
- Infectious and Immunologic Diseases Research Center (IIDRC), Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Moshe Arditi
- Department of Pediatrics, Division of Infectious Diseases and Immunology, Guerin Children’s at Cedars-Sinai Medical Center, Los Angeles, California, USA
- Infectious and Immunologic Diseases Research Center (IIDRC), Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, California, USA
- Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA
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11
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Lynch JP, Fishbein MC, Abtin F, Zhanel GG. Part 1: Mucormycosis: Prevalence, Risk Factors, Clinical Features and Diagnosis. Expert Rev Anti Infect Ther 2023. [PMID: 37262298 DOI: 10.1080/14787210.2023.2220964] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 05/30/2023] [Indexed: 06/03/2023]
Abstract
INTRODUCTION Mucormycosis (MCR) is caused by filamentous molds within the Class Zygomycetes and Order Mucorales. Infections can result from inhalation of spores into the nares, oropharynx or lungs, ingestion of contaminated food or water, or inoculation into disrupted skin or wounds. In developed countries, MCR occurs primarily in severely immunocompromised hosts. In contrast, in developing/low income countries, most cases of MCR occur in persons with poorly controlled diabetes mellitus and some cases in immunocompetent subjects following trauma. Mucormycosis exhibits a propensity to invade blood vessels, leading to thrombosis and infarction of tissue. Mortality rates associated with invasive MCR are high and can exceed 90% with disseminated disease. Mucormycosis can be classified as one of six forms: (1) rhino-orbital-cerebral mucormycosis (ROCM); (2) pulmonary; (3) cutaneous; (4) gastrointestinal or renal (5); disseminated; (6) uncommon (focal) sites. AREAS COVERED The authors discuss the prevalence, risk factors and clinical features of mucormycosis.A literature search of mucormycosis was performed via PubMed (up to November 2022), using the key words: invasive fungal infections; mold; mucormycosis; Mucorales; Zyzomyces; Zygomycosis; Rhizopus, diagnosis. EXPERT OPINION Mucormycosis occurs primarily in severely immunocompromised hosts. Mucormycosis can progress rapidly, and delay in initiating treatment by even a few days worsens outcomes.
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Affiliation(s)
- Joseph P Lynch
- Division of Pulmonary, Critical Care Medicine, Allergy, and Clinical Immunology, Department of Internal Medicine, the David Geffen School of Medicine at UCLA, Los Angeles, CA
| | - Michael C Fishbein
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA
| | - Fereidoun Abtin
- Section of Radiology Cardiothoracic and Interventional, David Geffen School of Medicine at UCLA, Los Angeles, CA
| | - George G Zhanel
- Department of Medical Microbiology/Infectious Diseases, Max Rady College of Medicine, University of Manitoba
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12
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Goldman JW, Sholl LM, Dacic S, Fishbein MC, Murciano-Goroff YR, Rajaram R, Szymczak S, Szpurka AM, Chao BH, Drilon A. Case Report: Complete pathologic response to neoadjuvant selpercatinib in a patient with resectable early-stage RET fusion-positive non-small cell lung cancer. Front Oncol 2023; 13:1178313. [PMID: 37274265 PMCID: PMC10232990 DOI: 10.3389/fonc.2023.1178313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 05/03/2023] [Indexed: 06/06/2023] Open
Abstract
The LIBRETTO-001 trial demonstrated the activity of the selective rearrangement during transfection (RET) inhibitor selpercatinib in advanced RET fusion-positive non-small cell lung cancer (NSCLC) and resulted in the drug's approval for this indication. A cohort that included neoadjuvant and adjuvant selpercatinib was opened on LIBRETTO-001 for early-stage RET fusion-positive NSCLC with the primary endpoint of major pathologic response. A patient with a stage IB (cT2aN0M0) KIF5B-RET fusion-positive NSCLC received 8 weeks of neoadjuvant selpercatinib at 160 mg twice daily followed by surgery. While moderate regression in the primary tumor (stable disease, Response Evaluation Criteria in Solid Tumors (RECIST) guidelines version 1.1) was observed radiologically, assessment via an Independent Pathologic Review Committee revealed a pathologic complete response (0% viable tumor). This consensus assessment by three independent pathologists was aided by RET fluorescence in situ hybridization testing of a reactive pneumocyte proliferation showing no rearrangement. Neoadjuvant selpercatinib was well-tolerated with only low-grade treatment-emergent adverse events. The activity of prospective preoperative selpercatinib in this case establishes proof of concept of the potential utility of RET inhibitor therapy in early-stage RET fusion-positive NSCLC.
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Affiliation(s)
- Jonathan W. Goldman
- David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
| | - Lynette M. Sholl
- Department of Pathology, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, United States
| | - Sanja Dacic
- Department of Pathology, Yale School of Medicine, New Haven, CT, United States
| | - Michael C. Fishbein
- David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
| | | | - Ravi Rajaram
- Department of Thoracic and Cardiovascular Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | | | - Anna M. Szpurka
- Loxo@Lilly, Eli Lilly and Company, Indianapolis, IN, United States
| | - Bo H. Chao
- Loxo@Lilly, Eli Lilly and Company, New York, NY, United States
| | - Alexander Drilon
- Department of Medicine, Memorial Sloan-Kettering Cancer CenterNew York, NY, United States
- Department of Medicine, Weill Cornell Medical College, New York, NY, United States
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13
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Azar F, Boulier K, Hassani C, Shahandeh N, Cruz D, Aboulhosn JA, Fishbein MC, Kwon MH, Yang EH. TIGHT SQUEEZE: A CASE OF CARDIAC EXTENSIVE LIPOMATOSIS WITH ATRIAL INFILTRATION AND SUPERIOR VENA CAVA COMPRESSION. J Am Coll Cardiol 2023. [DOI: 10.1016/s0735-1097(23)03405-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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14
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Do DH, O’Meara K, Lee J, Meyer S, Hanna P, Mori S, Fishbein MC, Boyle NG, Elizari MV, Bradfield JS, Shivkumar K. Ventricular Parasystole in Cardiomyopathy Patients. JACC Clin Electrophysiol 2023. [DOI: 10.1016/j.jacep.2022.11.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
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15
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Lu ZA, Aubry MC, Fallon JT, Fishbein MC, Giordano C, Klingel K, Leone O, Rizzo S, Veinot JP, Halushka MK. Myocarditis and endomyocardial biopsy: achieving consensus diagnosis on 100 cases. Cardiovasc Pathol 2023; 62:107492. [PMID: 36404460 DOI: 10.1016/j.carpath.2022.107492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 10/06/2022] [Accepted: 10/21/2022] [Indexed: 12/13/2022] Open
Abstract
The two histopathology benchmarks used to diagnose myocarditis are the Dallas Criteria, developed in 1984 and the European Society of Cardiology criteria, developed in 2013, which added immunohistochemistry for the detection of CD3+ T cells (lymphocytes) and CD68+ macrophages. Despite their near universal acceptance, the extent to which pathologists use these criteria or their own criteria to consistently render the diagnosis of myocarditis on endomyocardial biopsy (EMB) is unknown. We digitally scanned slides from 100 heart biopsies, including a trichrome stain and immunostaining, that were chosen as representative of myocarditis, non-myocarditis, and borderline myocarditis, as diagnosed per one institution's use of the Dallas Criteria. Eight blinded international cardiovascular experts were asked to render diagnoses and offer a confidence score on each case. No clinical histories were shared. There was full initial agreement across all experts on 37 cases (16 myocarditis and 21 non-myocarditis) and moderate consensus on 35 cases. After individual inquiries and group discussion, consensus was reached on 90 cases. Diagnostic confidence was highest among the myocarditis diagnoses, lowest for borderline cases, and significantly different between the three diagnostic categories (myocarditis, borderline myocarditis, non-myocarditis; P-value=8.49 × 10-57; ANOVA). Diagnosing myocarditis, particularly in cases with limited inflammation and injury, remains a challenge even for experts in the field. Intermediate cases, termed "borderline" in the Dallas Criteria, represent those for which consensus is particularly hard to achieve. To increase consistency for the histopathologic diagnosis of myocarditis, we will need more specifically defined criteria, more granular descriptions of positive and negative features, clarity on how to incorporate immunohistochemistry findings, and improved nomenclature.
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Affiliation(s)
- Zhen A Lu
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Mary Christine Aubry
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - John T Fallon
- Department of Pathology and Laboratory Medicine, ECU Brody School of Medicine, Greenville, NC, USA
| | - Michael C Fishbein
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Carla Giordano
- Department of Radiological, Oncological and Pathological Sciences, Sapienza University of Rome, Rome, Italy
| | - Karin Klingel
- Cardiopathology, Institute for Pathology and Neuropathology, University Hospital Tuebingen, Tuebingen, Germany
| | - Ornella Leone
- Cardiovascular and Cardiac Transplant Pathology Unit, Department of Pathology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Stefania Rizzo
- Department of Cardiac, Thoracic and Vascular Sciences and Public Health, University of Padua, Padua, Italy
| | - John P Veinot
- Department of Pathology and Laboratory Medicine; University of Ottawa, Ottawa, Ontario, Canada
| | - Marc K Halushka
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
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Abstract
IMPORTANCE Sarcoidosis is an inflammatory granulomatous disease of unknown cause that affects an estimated 2 to 160 people per 100 000 worldwide and can involve virtually any organ. Approximately 10% to 30% of patients with sarcoidosis develop progressive pulmonary disease. OBSERVATION Among patients with pulmonary sarcoidosis, the rate of spontaneous remission without serious sequelae ranges from 10% to 82%. However, lung disease progression occurs in more than 10% of patients and can result in fibrocystic architectural distortion of the lung, which is associated with a mortality rate of 12% to 18% within 5 years. Overall, the mortality rate for sarcoidosis is approximately 7% within a 5-year follow-up period. Worldwide, more than 60% of deaths from sarcoidosis are due to pulmonary involvement; however, more than 70% of deaths from sarcoidosis are due to cardiac involvement in Japan. Up to 70% of patients with advanced pulmonary sarcoidosis develop precapillary pulmonary hypertension, which is associated with a 5-year mortality rate of approximately 40%. Patients with sarcoidosis and precapillary pulmonary hypertension should be treated with therapies such as phosphodiesterase inhibitors and prostacyclin analogues. Although optimal doses of oral glucocorticoids for pulmonary sarcoidosis are unknown, oral prednisone typically starting at a dose of 20 mg/d to 40 mg/d for 2 to 6 weeks is recommended for patients who are symptomatic (cough, dyspnea, and chest pain) and have parenchymal infiltrates and abnormal pulmonary function test results. Oral glucocorticoids can be tapered over 6 to 18 months if symptoms, pulmonary function test results, and radiographs improve. Prolonged use of oral glucocorticoids may be required to control symptoms and stabilize disease. Patients without adequate improvement while receiving a dose of prednisone of 10 mg/d or greater or those with adverse effects due to glucocorticoids may be prescribed immunosuppressive agents, such as methotrexate, azathioprine, or an anti-tumor necrosis factor medication, either alone or with glucocorticoids combined with appropriate microbial prophylaxis for Pneumocystis jiroveci and herpes zoster. Effective treatments are not available for advanced fibrocystic pulmonary disease. CONCLUSIONS AND RELEVANCE Sarcoidosis has a mortality rate of approximately 7% within a 5-year follow-up period. More than 10% of patients with pulmonary sarcoidosis develop progressive disease and more than 60% of deaths are due to advanced pulmonary sarcoidosis. Oral glucocorticoids with or without another immunosuppressive agent are the first-line therapy for symptomatic patients with abnormal pulmonary function test results and lung infiltrates. Patients with sarcoidosis and precapillary pulmonary hypertension should be treated with therapies such as phosphodiesterase inhibitors and prostacyclin analogues.
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Affiliation(s)
- John A Belperio
- Division of Pulmonary and Critical Care Medicine, Clinical Immunology, and Allergy, David Geffen School of Medicine, University of California, Los Angeles
| | - Faisal Shaikh
- Division of Pulmonary and Critical Care Medicine, Clinical Immunology, and Allergy, David Geffen School of Medicine, University of California, Los Angeles
| | - Fereidoun G Abtin
- Thoracic and Interventional Section, Department of Radiology, David Geffen School of Medicine, University of California, Los Angeles
| | - Michael C Fishbein
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California, Los Angeles
| | - S Samuel Weigt
- Division of Pulmonary and Critical Care Medicine, Clinical Immunology, and Allergy, David Geffen School of Medicine, University of California, Los Angeles
| | - Rajan Saggar
- Division of Pulmonary and Critical Care Medicine, Clinical Immunology, and Allergy, David Geffen School of Medicine, University of California, Los Angeles
| | - Joseph P Lynch
- Division of Pulmonary and Critical Care Medicine, Clinical Immunology, and Allergy, David Geffen School of Medicine, University of California, Los Angeles
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17
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Marek-Iannucci S, Yildirim AD, Hamid SM, Ozdemir AB, Gomez AC, Kocatürk B, Porritt RA, Fishbein MC, Iwawaki T, Noval Rivas M, Erbay E, Arditi M. Targeting IRE1 endoribonuclease activity alleviates cardiovascular lesions in a murine model of Kawasaki disease vasculitis. JCI Insight 2022; 7:157203. [PMID: 35167493 PMCID: PMC8986066 DOI: 10.1172/jci.insight.157203] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 02/09/2022] [Indexed: 11/17/2022] Open
Abstract
Kawasaki disease (KD) is the leading cause of non-congenital heart disease in children. Studies in mice and humans propound the NLRP3-IL-1β pathway as the principal driver of KD pathophysiology. Endoplasmic reticulum (ER) stress can activate the NLRP3 inflammasome, but the potential implication of ER stress in KD pathophysiology has not been investigated. We used human patient data and the Lactobacillus casei cell wall extract (LCWE) murine model of KD vasculitis to characterize the impact of ER stress on the development of cardiovascular lesions. KD patient transcriptomics and single-cell RNA sequencing of the abdominal aorta from LCWE-injected mice revealed changes in the expression of ER stress genes. Alleviating ER stress genetically, by conditional deletion of Inositol Requiring Enzyme-1 (IRE1) in myeloid cells, or pharmacologically, by inhibition of IRE1 endoribonuclease (RNase) activity, led to significant reduction of LCWE-induced cardiovascular lesion formation as well as reduced caspase-1 activity and IL-1β secretion. These results demonstrate the causal relationship of ER stress to KD pathogenesis, and highlight IRE1 RNase activity as a potential new therapeutic target.
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Affiliation(s)
- Stefanie Marek-Iannucci
- Department of Pediatrics, Cedars-Sinai Medical Center, Los Angeles, United States of America
| | - Asli D Yildirim
- Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, United States of America
| | - Syed M Hamid
- Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, United States of America
| | - Asli B Ozdemir
- Department of Pediatrics, Cedars-Sinai Medical Center, Los Angeles, United States of America
| | - Angela C Gomez
- Department of Pediatrics, Cedars-Sinai Medical Center, Los Angeles, United States of America
| | - Begüm Kocatürk
- Department of Pediatrics, Cedars-Sinai Medical Center, Los Angeles, United States of America
| | - Rebecca A Porritt
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, United States of America
| | | | - Takao Iwawaki
- Department of Life Science, Medical Research Institute, Kanazawa Medical University, Kahoku, Japan
| | - Magali Noval Rivas
- Department of Pediatrics, Cedars-Sinai Medical Center, Los Angeles, United States of America
| | - Ebru Erbay
- Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, United States of America
| | - Moshe Arditi
- Cedars-Sinai Medical Center, Los Angeles, United States of America
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18
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Shahrouki P, Fishbein MC, Bedayat A. Severe COVID-19 Pneumonia of Single Transplant Lung Sparing Native Fibrotic Lung. Transplantation 2022; 106:e105-e106. [PMID: 34699458 PMCID: PMC8667682 DOI: 10.1097/tp.0000000000003968] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 09/04/2021] [Accepted: 09/10/2021] [Indexed: 12/04/2022]
Abstract
Supplemental Digital Content is available in the text.
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Affiliation(s)
- Puja Shahrouki
- Department of Radiological Sciences, University of California Los Angeles, Los Angeles, CA
| | - Michael C. Fishbein
- Department of Pathology and Laboratory Medicine, University of California Los Angeles, Los Angeles, CA
| | - Arash Bedayat
- Department of Radiological Sciences, University of California Los Angeles, Los Angeles, CA
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20
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Armstrong SM, Basso C, Bendeck M, Berthiaume J, Bonafiglia QA, Buja LM, Butany J, d’Amati G, Fishbein GA, Fishbein MC, Giordano C, Gotlieb AI, Hammers J, Hoit B, Jensen B, Kirk J, Lai CK, Lau RP, Lelenwa L, Lyon R, Maleszewski JJ, McDonald M, McManus B, Michaud K, Mitchell RN, Mori M, Nair V, Ottaviani G, Ranek M, Rao V, Rizzo S, Rodriguez ER, Romero ME, Sakamoto A, Sampson B, Santos-Martins C, Sato Y, Schoen FJ, Segura A, Seidman MA, Seki A, Sheikh F, Singaravel S, Stone JR, Stram M, Tan CD, Thavendiranathan P, Thiene G, Tolend M, Vaideeswar P, Veinot JP, Virmani R, Wang J, Willis M, Zhao B. List of contributors. Cardiovasc Pathol 2022. [DOI: 10.1016/b978-0-12-822224-9.00029-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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21
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Seki A, Fishbein MC. Age-related cardiovascular changes and diseases. Cardiovasc Pathol 2022. [DOI: 10.1016/b978-0-12-822224-9.00004-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
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22
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Porritt RA, Zemmour D, Abe M, Lee Y, Narayanan M, Carvalho TT, Gomez AC, Martinon D, Santiskulvong C, Fishbein MC, Chen S, Crother TR, Shimada K, Arditi M, Noval Rivas M. NLRP3 Inflammasome Mediates Immune-Stromal Interactions in Vasculitis. Circ Res 2021; 129:e183-e200. [PMID: 34517723 DOI: 10.1161/circresaha.121.319153] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
[Figure: see text].
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Affiliation(s)
- Rebecca A Porritt
- Department of Pediatrics, Division of Infectious Diseases and Immunology, Department of Biomedical Sciences, Infectious and Immunologic Diseases Research Center (IIDRC) (R.A.P., M.A., Y.L., M.N., T.T.d.C., A.C.G., D.M., S.C., T.R.C., K.S., M.A., M.N.R.), Cedars-Sinai Medical Center, Los Angeles, CA
| | - David Zemmour
- Department of Pathology, Harvard Medical School and Brigham and Women's Hospital, Boston, MA (D.Z.)
| | - Masanori Abe
- Department of Pediatrics, Division of Infectious Diseases and Immunology, Department of Biomedical Sciences, Infectious and Immunologic Diseases Research Center (IIDRC) (R.A.P., M.A., Y.L., M.N., T.T.d.C., A.C.G., D.M., S.C., T.R.C., K.S., M.A., M.N.R.), Cedars-Sinai Medical Center, Los Angeles, CA
| | - Youngho Lee
- Department of Pediatrics, Division of Infectious Diseases and Immunology, Department of Biomedical Sciences, Infectious and Immunologic Diseases Research Center (IIDRC) (R.A.P., M.A., Y.L., M.N., T.T.d.C., A.C.G., D.M., S.C., T.R.C., K.S., M.A., M.N.R.), Cedars-Sinai Medical Center, Los Angeles, CA
| | - Meena Narayanan
- Department of Pediatrics, Division of Infectious Diseases and Immunology, Department of Biomedical Sciences, Infectious and Immunologic Diseases Research Center (IIDRC) (R.A.P., M.A., Y.L., M.N., T.T.d.C., A.C.G., D.M., S.C., T.R.C., K.S., M.A., M.N.R.), Cedars-Sinai Medical Center, Los Angeles, CA
| | - Thacyana T Carvalho
- Department of Pediatrics, Division of Infectious Diseases and Immunology, Department of Biomedical Sciences, Infectious and Immunologic Diseases Research Center (IIDRC) (R.A.P., M.A., Y.L., M.N., T.T.d.C., A.C.G., D.M., S.C., T.R.C., K.S., M.A., M.N.R.), Cedars-Sinai Medical Center, Los Angeles, CA
| | - Angela C Gomez
- Department of Pediatrics, Division of Infectious Diseases and Immunology, Department of Biomedical Sciences, Infectious and Immunologic Diseases Research Center (IIDRC) (R.A.P., M.A., Y.L., M.N., T.T.d.C., A.C.G., D.M., S.C., T.R.C., K.S., M.A., M.N.R.), Cedars-Sinai Medical Center, Los Angeles, CA
| | - Daisy Martinon
- Department of Pediatrics, Division of Infectious Diseases and Immunology, Department of Biomedical Sciences, Infectious and Immunologic Diseases Research Center (IIDRC) (R.A.P., M.A., Y.L., M.N., T.T.d.C., A.C.G., D.M., S.C., T.R.C., K.S., M.A., M.N.R.), Cedars-Sinai Medical Center, Los Angeles, CA
| | - Chintda Santiskulvong
- Department of Pediatrics, Division of Infectious Diseases and Immunology, Department of Biomedical Sciences, Infectious and Immunologic Diseases Research Center (IIDRC) (R.A.P., M.A., Y.L., M.N., T.T.d.C., A.C.G., D.M., S.C., T.R.C., K.S., M.A., M.N.R.), Cedars-Sinai Medical Center, Los Angeles, CA.,CS Cancer (C.S.), Cedars-Sinai Medical Center, Los Angeles, CA
| | - Michael C Fishbein
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA (M.C.F.)
| | | | - Timothy R Crother
- Department of Pediatrics, Division of Infectious Diseases and Immunology, Department of Biomedical Sciences, Infectious and Immunologic Diseases Research Center (IIDRC) (R.A.P., M.A., Y.L., M.N., T.T.d.C., A.C.G., D.M., S.C., T.R.C., K.S., M.A., M.N.R.), Cedars-Sinai Medical Center, Los Angeles, CA
| | - Kenichi Shimada
- Department of Pediatrics, Division of Infectious Diseases and Immunology, Department of Biomedical Sciences, Infectious and Immunologic Diseases Research Center (IIDRC) (R.A.P., M.A., Y.L., M.N., T.T.d.C., A.C.G., D.M., S.C., T.R.C., K.S., M.A., M.N.R.), Cedars-Sinai Medical Center, Los Angeles, CA
| | - Moshe Arditi
- Department of Pediatrics, Division of Infectious Diseases and Immunology, Department of Biomedical Sciences, Infectious and Immunologic Diseases Research Center (IIDRC) (R.A.P., M.A., Y.L., M.N., T.T.d.C., A.C.G., D.M., S.C., T.R.C., K.S., M.A., M.N.R.), Cedars-Sinai Medical Center, Los Angeles, CA.,Smidt Heart Institute (M.A.), Cedars-Sinai Medical Center, Los Angeles, CA
| | - Magali Noval Rivas
- Department of Pediatrics, Division of Infectious Diseases and Immunology, Department of Biomedical Sciences, Infectious and Immunologic Diseases Research Center (IIDRC) (R.A.P., M.A., Y.L., M.N., T.T.d.C., A.C.G., D.M., S.C., T.R.C., K.S., M.A., M.N.R.), Cedars-Sinai Medical Center, Los Angeles, CA
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23
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Belperio JA, Shaikh F, Abtin F, Fishbein MC, Saggar R, Tsui E, Lynch JP. Extrapulmonary sarcoidosis with a focus on cardiac, nervous system, and ocular involvement. EClinicalMedicine 2021; 37:100966. [PMID: 34258571 PMCID: PMC8254127 DOI: 10.1016/j.eclinm.2021.100966] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 05/26/2021] [Accepted: 05/26/2021] [Indexed: 02/07/2023] Open
Abstract
Sarcoidosis is a poorly understood granulomatous disease that involves the lungs and/or intrathoracic lymph nodes in more than 90% of cases. Although pulmonary sarcoidosis is the leading cause of mortality in this disease, this review focuses on three sites of extrapulmonary involvement (heart, nervous system, and eyes), since involvement of any of these sites can be catastrophic, leading to death, debilitation, or blindness. Patients with cardiac, ocular and neurosarcoidosis necessitate a multidisciplinary approach with careful and long-term follow-up. Prompt diagnosis with imaging and/or biopsy and treatment is required to avoid irreversible damage. Corticosteroids are the mainstay of therapy and are often associated with rapid and durable remissions. Immunosuppressive or biologic agents are reserved for patients failing or experiencing side effects from steroids. Managing sarcoidosis requires vigilance, judgement, and awareness of the vagaries of this fascinating disease.
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Affiliation(s)
- John A. Belperio
- The Division of Pulmonary and Critical Care Medicine, Holt and Jo Hickman Endowed Chair of Advanced Lung Disease and Lung Transplantation, Clinical Immunology, and Allergy, David Geffen School of Medicine at UCLA, 10833 Le Conte Ave, Room 37-131 CHS, Los Angeles, CA 90095, United States
- Corresponding authors.
| | - Faisal Shaikh
- The Division of Pulmonary and Critical Care Medicine, Holt and Jo Hickman Endowed Chair of Advanced Lung Disease and Lung Transplantation, Clinical Immunology, and Allergy, David Geffen School of Medicine at UCLA, 10833 Le Conte Ave, Room 37-131 CHS, Los Angeles, CA 90095, United States
| | - Fereidoun Abtin
- Department of Radiology, Thoracic and Interventional Section, David Geffen School of Medicine at UCLA, United States
| | - Michael C. Fishbein
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, United States
| | - Rajan Saggar
- The Division of Pulmonary and Critical Care Medicine, Holt and Jo Hickman Endowed Chair of Advanced Lung Disease and Lung Transplantation, Clinical Immunology, and Allergy, David Geffen School of Medicine at UCLA, 10833 Le Conte Ave, Room 37-131 CHS, Los Angeles, CA 90095, United States
| | - Edmund Tsui
- Department of Ophthalmology, David Geffen School of Medicine at UCLA, United States
| | - Joseph P. Lynch
- The Division of Pulmonary and Critical Care Medicine, Holt and Jo Hickman Endowed Chair of Advanced Lung Disease and Lung Transplantation, Clinical Immunology, and Allergy, David Geffen School of Medicine at UCLA, 10833 Le Conte Ave, Room 37-131 CHS, Los Angeles, CA 90095, United States
- Corresponding authors.
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24
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Mori S, Hanna P, Dacey MJ, Temma T, Hadaya J, Zhu C, Chang G, Peacock WJ, Fishbein MC, Shivkumar K. Comprehensive Anatomy of the Pericardial Space and the Cardiac Hilum: Anatomical Dissections With Intact Pericardium. JACC Cardiovasc Imaging 2021; 15:927-942. [PMID: 34147441 PMCID: PMC8655319 DOI: 10.1016/j.jcmg.2021.04.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 04/01/2021] [Accepted: 04/09/2021] [Indexed: 10/21/2022]
Affiliation(s)
- Shumpei Mori
- University of California Los Angeles (UCLA) Cardiac Arrhythmia Center and Neurocardiology Research Program of Excellence, Department of Medicine, UCLA, Los Angeles, California, USA
| | - Peter Hanna
- University of California Los Angeles (UCLA) Cardiac Arrhythmia Center and Neurocardiology Research Program of Excellence, Department of Medicine, UCLA, Los Angeles, California, USA; Molecular, Cellular & Integrative Physiology Program, UCLA, Los Angeles, California, USA
| | - Michael J Dacey
- University of California Los Angeles (UCLA) Cardiac Arrhythmia Center and Neurocardiology Research Program of Excellence, Department of Medicine, UCLA, Los Angeles, California, USA; Molecular, Cellular & Integrative Physiology Program, UCLA, Los Angeles, California, USA
| | - Taro Temma
- University of California Los Angeles (UCLA) Cardiac Arrhythmia Center and Neurocardiology Research Program of Excellence, Department of Medicine, UCLA, Los Angeles, California, USA
| | - Joseph Hadaya
- University of California Los Angeles (UCLA) Cardiac Arrhythmia Center and Neurocardiology Research Program of Excellence, Department of Medicine, UCLA, Los Angeles, California, USA; Molecular, Cellular & Integrative Physiology Program, UCLA, Los Angeles, California, USA
| | - Ching Zhu
- University of California Los Angeles (UCLA) Cardiac Arrhythmia Center and Neurocardiology Research Program of Excellence, Department of Medicine, UCLA, Los Angeles, California, USA; Molecular, Cellular & Integrative Physiology Program, UCLA, Los Angeles, California, USA
| | - Grace Chang
- Department of Surgery, UCLA, Los Angeles, California, USA
| | | | - Michael C Fishbein
- Department of Pathology and Laboratory Medicine, UCLA, Los Angeles, California, USA
| | - Kalyanam Shivkumar
- University of California Los Angeles (UCLA) Cardiac Arrhythmia Center and Neurocardiology Research Program of Excellence, Department of Medicine, UCLA, Los Angeles, California, USA; Molecular, Cellular & Integrative Physiology Program, UCLA, Los Angeles, California, USA.
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25
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Kusayama T, Wan J, Yuan Y, Liu X, Li X, Shen C, Fishbein MC, Everett TH, Chen PS. Effects of subcutaneous nerve stimulation with blindly inserted electrodes on ventricular rate control in a canine model of persistent atrial fibrillation. Heart Rhythm 2021; 18:261-270. [PMID: 32956842 DOI: 10.1016/j.hrthm.2020.09.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 09/04/2020] [Accepted: 09/14/2020] [Indexed: 01/28/2023]
Abstract
BACKGROUND Subcutaneous nerve stimulation (ScNS) delivered directly to large subcutaneous nerves can be either antiarrhythmic or proarrhythmic, depending on the stimulus output. OBJECTIVE The purpose of this study was to perform a prospective randomized study in a canine model of persistent AF to test the hypothesis that high-output ScNS using blindly inserted subcutaneous electrodes can reduce ventricular rate (VR) during persistent atrial fibrillation (AF) whereas low-output ScNS would have opposite effects. METHODS We prospectively randomized 16 male and 15 female dogs with sustained AF (>48 hours) induced by rapid atrial pacing into 3 groups (sham, 0.25 mA, 3.5 mA) for 4 weeks of ScNS (10 Hz, alternating 20-seconds ON and 60-seconds OFF). RESULTS ScNS at 3.5 mA, but not 0.25 mA or sham, significantly reduced VR and stellate ganglion nerve activity (SGNA), leading to improvement of left ventricular ejection fraction (LVEF). No differences were found between the 0.25-mA and sham groups. Histologic studies showed a significant reduction of bilateral atrial fibrosis in the 3.5-mA group compared with sham controls. Only 3.5-mA ScNS had significant fibrosis in bilateral stellate ganglions. The growth-associated protein 43 (GAP43) staining of stellate ganglions indicated the suppression of GAP43 protein expression in the 3.5-mA group. There were no significant differences of nerve sprouting among all groups. There was no interaction between sex and ScNS effects on reduction of VR and SGNA, LVEF improvement, or results of histologic studies. CONCLUSION We conclude that 3.5-mA ScNS with blindly inserted electrodes can improve VR control, reduce atrial fibrosis, and partially improve LVEF in a canine model of persistent AF.
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Affiliation(s)
- Takashi Kusayama
- Krannert Institute of Cardiology, Division of Cardiology, Department of Medicine, Indianapolis, Indiana; Department of Cardiology, Kanazawa University Graduate School of Medical Sciences, Ishikawa, Japan
| | - Juyi Wan
- Krannert Institute of Cardiology, Division of Cardiology, Department of Medicine, Indianapolis, Indiana; Department of Cardiothoracic Surgery, the Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan Province, China
| | - Yuan Yuan
- Krannert Institute of Cardiology, Division of Cardiology, Department of Medicine, Indianapolis, Indiana; Department of Cardiac Surgery, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xiao Liu
- Krannert Institute of Cardiology, Division of Cardiology, Department of Medicine, Indianapolis, Indiana; Cedars-Sinai Medical Center, Los Angeles, California
| | - Xiaochun Li
- Department of Biostatistics, Indiana University School of Medicine, Indianapolis, Indiana
| | - Changyu Shen
- The Richard and Susan Smith Center for Outcomes Research in Cardiology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
| | - Michael C Fishbein
- Department of Pathology and Laboratory Medicine, University of California, Los Angeles, California
| | - Thomas H Everett
- Krannert Institute of Cardiology, Division of Cardiology, Department of Medicine, Indianapolis, Indiana
| | - Peng-Sheng Chen
- Krannert Institute of Cardiology, Division of Cardiology, Department of Medicine, Indianapolis, Indiana; Cedars-Sinai Medical Center, Los Angeles, California.
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26
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Yang Y, Yuan Y, Wong J, Fishbein MC, Chen PS, Everett TH. Recording Intrinsic Nerve Activity at the Sinoatrial Node in Normal Dogs With High-Density Mapping. Circ Arrhythm Electrophysiol 2021; 14:e008610. [PMID: 33417471 DOI: 10.1161/circep.120.008610] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND It is known that autonomic nerve activity controls the sinus rate. However, the coupling between local nerve activity and electrical activation at the sinoatrial node (SAN) remains unclear. We hypothesized that we would be able to record nerve activity at the SAN to investigate if right stellate ganglion (RSG) activation can increase the local intrinsic nerve activity, accelerate sinus rate, and change the earliest activation sites. METHODS High-density mapping of the epicardial surface of the right atrium including the SAN was performed in 6 dogs during stimulation of the RSG and after RSG stellectomy. A radio transmitter was implanted into 3 additional dogs to record RSG and local nerve activity at the SAN. RESULTS Heart rate accelerated from 108±4 bpm at baseline to 125±7 bpm after RSG stimulation (P=0.001), and to 132±7 bpm after apamin injection (P<0.001). Both electrical RSG stimulation and apamin injection induced local nerve activity at the SAN with the average amplitudes of 3.60±0.72 and 3.86±0.56 μV, respectively. RSG stellectomy eliminated the local nerve activity and decreased the heart rate. In ambulatory dogs, local nerve activity at the SAN had a significantly higher average Pearson correlation to heart rate (0.72±0.02, P=0.001) than RSG nerve activity to HR (0.45±0.04, P=0.001). CONCLUSIONS Local intrinsic nerve activity can be recorded at the SAN. Short bursts of these local nerve activities are present before each atrial activation during heart rate acceleration induced by stimulation of the RSG.
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Affiliation(s)
- Yufan Yang
- Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine, IN (Y. Yang, Y. Yuan, J.W., P.-S.C., T.H.E.).,Department of Cardiology, Third Xiangya Hospital of Central South University, Changsha, China (Y. Yang)
| | - Yuan Yuan
- Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine, IN (Y. Yang, Y. Yuan, J.W., P.-S.C., T.H.E.).,Department of Cardiothoracic Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, China (Y. Yuan)
| | - Johnson Wong
- Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine, IN (Y. Yang, Y. Yuan, J.W., P.-S.C., T.H.E.)
| | - Michael C Fishbein
- The Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA (M.C.F.)
| | - Peng-Sheng Chen
- Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine, IN (Y. Yang, Y. Yuan, J.W., P.-S.C., T.H.E.).,Department of Cardiology, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA (P.-S.C.)
| | - Thomas H Everett
- Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine, IN (Y. Yang, Y. Yuan, J.W., P.-S.C., T.H.E.)
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27
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Maruyama D, Kocatürk B, Lee Y, Abe M, Lane M, Moreira D, Chen S, Fishbein MC, Porritt RA, Noval Rivas M, Arditi M. MicroRNA-223 Regulates the Development of Cardiovascular Lesions in LCWE-Induced Murine Kawasaki Disease Vasculitis by Repressing the NLRP3 Inflammasome. Front Pediatr 2021; 9:662953. [PMID: 34026693 PMCID: PMC8138581 DOI: 10.3389/fped.2021.662953] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 03/02/2021] [Indexed: 11/24/2022] Open
Abstract
Kawasaki disease (KD), an acute febrile childhood illness and systemic vasculitis of unknown etiology, is the leading cause of acquired heart disease among children. Experimental data from murine models of KD vasculitis and transcriptomics data generated from whole blood of KD patients indicate the involvement of the NLRP3 inflammasome and interleukin-1 (IL-1) signaling in KD pathogenesis. MicroRNA-223 (miR-223) is a negative regulator of NLRP3 activity and IL-1β production, and its expression has been reported to be upregulated during acute human KD; however, the specific role of miR-223 during KD vasculitis remains unknown. Here, using the Lactobacillus casei cell wall extract (LCWE) murine model of KD vasculitis, we demonstrate increased miR-223 expression in LCWE-induced cardiovascular lesions. Compared with control WT mice, LCWE-injected miR-223-deficient mice (miR223 -/y ) developed more severe coronary arteritis and aortitis, as well as more pronounced abdominal aorta aneurysms and dilations. The enhanced cardiovascular lesions and KD vasculitis observed in LCWE-injected miR223 -/y mice correlated with increased NLRP3 inflammasome activity and elevated IL-1β production, indicating that miR-223 limits cardiovascular lesion development by downmodulating NLRP3 inflammasome activity. Collectively, our data reveal a previously unappreciated role of miR-223 in regulating innate immune responses and in limiting KD vasculitis and its cardiovascular lesions by constraining the NLRP3 inflammasome and the IL-1β pathway. These data also suggest that miR-223 expression may be used as a marker for KD vasculitis pathogenesis and provide a novel therapeutic target.
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Affiliation(s)
- Daisuke Maruyama
- Division of Pediatric Infectious Diseases and Immunology, Cedars-Sinai Medical Center, Los Angeles, CA, United States
| | - Begüm Kocatürk
- Division of Pediatric Infectious Diseases and Immunology, Cedars-Sinai Medical Center, Los Angeles, CA, United States
| | - Youngho Lee
- Division of Pediatric Infectious Diseases and Immunology, Cedars-Sinai Medical Center, Los Angeles, CA, United States
| | - Masanori Abe
- Division of Pediatric Infectious Diseases and Immunology, Cedars-Sinai Medical Center, Los Angeles, CA, United States
| | - Malcolm Lane
- Division of Pediatric Infectious Diseases and Immunology, Cedars-Sinai Medical Center, Los Angeles, CA, United States
| | - Debbie Moreira
- Division of Pediatric Infectious Diseases and Immunology, Cedars-Sinai Medical Center, Los Angeles, CA, United States
| | - Shuang Chen
- Division of Pediatric Infectious Diseases and Immunology, Cedars-Sinai Medical Center, Los Angeles, CA, United States.,Department of Biomedical Sciences, Infectious and Immunological Diseases Research Center, Cedars-Sinai Medical Center, Los Angeles, CA, United States
| | - Michael C Fishbein
- Department of Pathology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
| | - Rebecca A Porritt
- Division of Pediatric Infectious Diseases and Immunology, Cedars-Sinai Medical Center, Los Angeles, CA, United States.,Department of Biomedical Sciences, Infectious and Immunological Diseases Research Center, Cedars-Sinai Medical Center, Los Angeles, CA, United States
| | - Magali Noval Rivas
- Division of Pediatric Infectious Diseases and Immunology, Cedars-Sinai Medical Center, Los Angeles, CA, United States.,Department of Biomedical Sciences, Infectious and Immunological Diseases Research Center, Cedars-Sinai Medical Center, Los Angeles, CA, United States
| | - Moshe Arditi
- Division of Pediatric Infectious Diseases and Immunology, Cedars-Sinai Medical Center, Los Angeles, CA, United States.,Department of Biomedical Sciences, Infectious and Immunological Diseases Research Center, Cedars-Sinai Medical Center, Los Angeles, CA, United States
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28
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Porritt RA, Markman JL, Maruyama D, Kocaturk B, Chen S, Lehman TJA, Lee Y, Fishbein MC, Rivas MN, Arditi M. Interleukin-1 Beta-Mediated Sex Differences in Kawasaki Disease Vasculitis Development and Response to Treatment. Arterioscler Thromb Vasc Biol 2020; 40:802-818. [PMID: 31996019 PMCID: PMC7047651 DOI: 10.1161/atvbaha.119.313863] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
OBJECTIVE Kawasaki disease (KD) is the leading cause of acute vasculitis and acquired heart disease in children in developed countries. Notably, KD is more prevalent in males than females. We previously established a key role for IL (interleukin)-1 signaling in KD pathogenesis, but whether this pathway underlies the sex-based difference in susceptibility is unknown. Approach and Results: The role of IL-1 signaling was investigated in the Lactobacillus casei cell wall extract-induced experimental mouse model of KD vasculitis. Five-week-old male and female mice were injected intraperitoneally with PBS, Lactobacillus caseicell wall extract, or a combination of Lactobacillus caseicell wall extract and the IL-1 receptor antagonist Anakinra. Aortitis, coronary arteritis inflammation score and abdominal aorta dilatation, and aneurysm development were assessed. mRNA-seq (messenger RNA sequencing) analysis was performed on abdominal aorta tissue. Publicly available human transcriptomics data from patients with KD was analyzed to identify sex differences and disease-associated genes. Male mice displayed enhanced aortitis and coronary arteritis as well as increased incidence and severity of abdominal aorta dilatation and aneurysm, recapitulating the increased incidence in males that is observed in human KD. Gene expression data from patients with KD and abdominal aorta tissue of Lactobacillus caseicell wall extract-injected mice showed enhanced Il1b expression and IL-1 signaling genes in males. Although the more severe IL-1β-mediated disease phenotype observed in male mice was ameliorated by Anakinra treatment, the milder disease phenotype in female mice failed to respond. CONCLUSIONS IL-1β may play a central role in mediating sex-based differences in KD, with important implications for the use of anti-IL-1β therapies to treat male and female patients with KD.
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Affiliation(s)
- Rebecca A. Porritt
- Department of Pediatrics, Division of Infectious Diseases and Immunology, Los Angeles, California 90048, USA
| | - Janet L. Markman
- Department of Pediatrics, Division of Infectious Diseases and Immunology, Los Angeles, California 90048, USA
| | - Daisuke Maruyama
- Department of Pediatrics, Division of Infectious Diseases and Immunology, Los Angeles, California 90048, USA
| | - Begum Kocaturk
- Department of Pediatrics, Division of Infectious Diseases and Immunology, Los Angeles, California 90048, USA
| | - Shuang Chen
- Department of Pediatrics, Division of Infectious Diseases and Immunology, Los Angeles, California 90048, USA
- Department of Biomedical Sciences, Infectious and Immunologic Disease Research Center, Los Angeles, California 90048, USA
- Department of Biomedical Science, Research Division of Immunology, Cedars-Sinai Medical Center, Los Angeles, California 90048, USA
- David Geffen School of Medicine, University of California, Los Angeles, California 90095, USA
| | - Thomas J. A. Lehman
- Department of Pediatrics, Division of Rheumatology, Weill Cornell Medical School, New York, NY, 10065, USA
| | - Youngho Lee
- Department of Pediatrics, Division of Infectious Diseases and Immunology, Los Angeles, California 90048, USA
| | - Michael C Fishbein
- David Geffen School of Medicine, University of California, Los Angeles, California 90095, USA
| | - Magali Noval Rivas
- Department of Pediatrics, Division of Infectious Diseases and Immunology, Los Angeles, California 90048, USA
- Department of Biomedical Sciences, Infectious and Immunologic Disease Research Center, Los Angeles, California 90048, USA
- Department of Biomedical Science, Research Division of Immunology, Cedars-Sinai Medical Center, Los Angeles, California 90048, USA
- David Geffen School of Medicine, University of California, Los Angeles, California 90095, USA
| | - Moshe Arditi
- Department of Pediatrics, Division of Infectious Diseases and Immunology, Los Angeles, California 90048, USA
- Department of Biomedical Sciences, Infectious and Immunologic Disease Research Center, Los Angeles, California 90048, USA
- Department of Biomedical Science, Research Division of Immunology, Cedars-Sinai Medical Center, Los Angeles, California 90048, USA
- David Geffen School of Medicine, University of California, Los Angeles, California 90095, USA
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29
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Yuan Y, Zhao Y, Wong J, Tsai WC, Jiang Z, Kabir RA, Han S, Shen C, Fishbein MC, Chen LS, Chen Z, Everett TH, Chen PS. Subcutaneous nerve stimulation reduces sympathetic nerve activity in ambulatory dogs with myocardial infarction. Heart Rhythm 2020; 17:1167-1175. [PMID: 32068184 DOI: 10.1016/j.hrthm.2020.02.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 02/04/2020] [Indexed: 01/19/2023]
Abstract
BACKGROUND Subcutaneous nerve stimulation (ScNS) remodels the stellate ganglion and reduces stellate ganglion nerve activity (SGNA) in dogs. Acute myocardial infarction (MI) increases SGNA through nerve sprouting. OBJECTIVE The purpose of this study was to test the hypothesis that ScNS remodels the stellate ganglion and reduces SGNA in ambulatory dogs with acute MI. METHODS In the experimental group, a radio transmitter was implanted during the first sterile surgery to record nerve activity and an electrocardiogram, followed by a second sterile surgery to create MI. Dogs then underwent ScNS for 2 months. The average SGNA (aSGNA) was compared with that in a historical control group (n = 9), with acute MI monitored for 2 months without ScNS. RESULTS In the experimental group, the baseline aSGNA and heart rate were 4.08±0.35 μV and 98±12 beats/min, respectively. They increased within 1 week after MI to 6.91±1.91 μV (P=.007) and 107±10 beats/min (P=.028), respectively. ScNS reduced aSGNA to 3.46±0.44 μV (P<.039) and 2.14±0.50 μV (P<.001) at 4 and 8 weeks, respectively, after MI. In comparison, aSGNA at 4 and 8 weeks in dogs with MI but no ScNS was 8.26±6.31 μV (P=.005) and 10.82±7.86 μV (P=0002), respectively. Immunostaining showed confluent areas of remodeling in bilateral stellate ganglia and a high percentage of tyrosine hydroxylase-negative ganglion cells. Terminal deoxynucleotidyl transferase dUTP nick end labeling was positive in 26.61%±11.54% of ganglion cells in the left stellate ganglion and 15.94%±3.62% of ganglion cells in the right stellate ganglion. CONCLUSION ScNS remodels the stellate ganglion, reduces SGNA, and suppresses cardiac nerve sprouting after acute MI.
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Affiliation(s)
- Yuan Yuan
- The Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana; Department of Cardiothoracic Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Ye Zhao
- The Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana; Department of Cardiac Surgery, the First Affiliated Hospital of China Medical University, Shenyang, China
| | - Johnson Wong
- The Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Wei-Chung Tsai
- The Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana; Division of Cardiology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Zhaolei Jiang
- The Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana; Department of Cardiothoracic Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Ryan A Kabir
- The Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Seongwook Han
- Dongsan Medical Center, Keimyung University School of Medicine, Daegu, South Korea
| | - Changyu Shen
- Smith Center for Outcomes Research in Cardiology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
| | - Michael C Fishbein
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, UCLA, Los Angeles, California
| | - Lan S Chen
- Department of Neurology, Indiana University School of Medicine, Indianapolis, Indiana
| | - Zhenhui Chen
- The Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Thomas H Everett
- The Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Peng-Sheng Chen
- The Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana.
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Abstract
Mucormycosis is an infection caused by a group of filamentous molds within the order Mucorales. Infections may result from ingestion of contaminated food, inhalation of spores into the nares or lungs, or inoculation into disrupted skin or wounds. In developed countries, mucormycosis occurs primarily in severely immunocompromised hosts (e.g., those with hematological malignancies, organ transplantation, neutropenia, autoimmune disorders, or other impairments in immunity). Only 6 to 10% of cases occur in subjects with no underlying disease. In contrast, in developing countries, most cases of mucormycosis occur in persons with poorly controlled diabetes mellitus or in immunocompetent subjects following trauma. Mucormycosis exhibits a marked propensity to invade blood vessels, leading to thrombosis, necrosis, and infarction of tissue. Mortality associated with invasive mucormycosis is high (> 30-50%), with 90% mortality associated with disseminated disease. Mortality rates are much lower, though still significant (10-30%), among patients with localized cutaneous disease.The diagnosis of mucormycosis relies upon histopathology and culture. Blood tests are of limited diagnostic value. Even with disseminated disease, blood cultures are usually negative. Mucorales have a distinct histological appearance, with irregular, nonseptate hyphae that branch at right angles. Cultures and/or polymerase chain reaction (PCR) are important to identify the genera.Based on anatomic localization, mucormycosis can be classified as one of six forms: (1) rhino-orbital-cerebral mucormycosis (ROCM), (2) pulmonary, (3) cutaneous, (4) gastrointestinal (GI), (5) disseminated, and (6) mucormycosis of uncommon sites. Among diabetics, ROCM is the most common clinical presentation, whereas lung involvement is uncommon. In contrast, among organ transplant recipients or patients with hematological malignancies (HemeM), pulmonary and disseminated diseases are most common. Mucormycosis can progress rapidly, and delay in initiation of treatment by even a few days markedly worsens outcomes.Due to the rarity of mucormycosis, randomized controlled therapeutic trials have not been performed. Lipid formulations of amphotericin B (LFAB) are the mainstay of therapy, but the newer triazoles, posaconazole (POSA) and isavuconazole (ISAV) (the active component of the prodrug isavuconazonium sulfate), may be effective in patients refractory to or intolerant of LFAB. Early surgical debridement or excision plays an important adjunctive role. Additional studies are required to assess the optimal duration of therapy as well as the specific roles of LFAB and the triazoles in the treatment of mucormycosis.
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Affiliation(s)
- Gail Reid
- Division of Infectious Diseases, Department of Medicine, Loyola University Medical Center and Stritch School of Medicine, Maywood, Illinois
| | - Joseph P Lynch
- Division of Pulmonary, Critical Care Medicine, Allergy, and Clinical Immunology, Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California
| | - Michael C Fishbein
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California
| | - Nina M Clark
- Division of Infectious Diseases, Department of Medicine, Loyola University Medical Center and Stritch School of Medicine, Maywood, Illinois
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31
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Momcilovic M, Jones A, Bailey ST, Waldmann CM, Li R, Lee JT, Abdelhady G, Gomez A, Holloway T, Schmid E, Stout D, Fishbein MC, Stiles L, Dabir DV, Dubinett SM, Christofk H, Shirihai O, Koehler CM, Sadeghi S, Shackelford DB. Publisher Correction: In vivo imaging of mitochondrial membrane potential in non-small-cell lung cancer. Nature 2020; 577:E7. [PMID: 31896820 DOI: 10.1038/s41586-019-1890-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
An Amendment to this paper has been published and can be accessed via a link at the top of the paper.
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Affiliation(s)
- Milica Momcilovic
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA
| | - Anthony Jones
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA
| | - Sean T Bailey
- The Mouse Phase I Unit, Lineberger School of Medicine at the University of North Carolina Chapel Hill, Chapel Hill, NC, USA
| | - Christopher M Waldmann
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA
| | - Rui Li
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA
| | - Jason T Lee
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA.,Crump Institute for Molecular Imaging, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA.,Jonsson Comprehensive Cancer Center, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA
| | - Gihad Abdelhady
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA
| | - Adrian Gomez
- Department of Chemistry and Biochemistry, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA
| | - Travis Holloway
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA
| | - Ernst Schmid
- Department of Biological Chemistry, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA
| | | | - Michael C Fishbein
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA
| | - Linsey Stiles
- Department of Endocrinology, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA
| | - Deepa V Dabir
- Department of Biology, Loyola Marymount University, Los Angeles, CA, USA
| | - Steven M Dubinett
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA.,Department of Molecular and Medical Pharmacology, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA.,Jonsson Comprehensive Cancer Center, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA.,Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA.,VA Greater Los Angeles Healthcare System, Los Angeles, CA, USA
| | - Heather Christofk
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA.,Jonsson Comprehensive Cancer Center, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA.,Department of Biological Chemistry, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA.,UCLA Metabolomics Center, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA
| | - Orian Shirihai
- Jonsson Comprehensive Cancer Center, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA.,Department of Endocrinology, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA
| | - Carla M Koehler
- Department of Chemistry and Biochemistry, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA
| | - Saman Sadeghi
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA
| | - David B Shackelford
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA. .,Jonsson Comprehensive Cancer Center, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA.
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32
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Abe M, Rastelli DD, Gomez AC, Cingolani E, Lee Y, Soni PR, Fishbein MC, Lehman TJA, Shimada K, Crother TR, Chen S, Noval Rivas M, Arditi M. IL-1-dependent electrophysiological changes and cardiac neural remodeling in a mouse model of Kawasaki disease vasculitis. Clin Exp Immunol 2019; 199:303-313. [PMID: 31758701 DOI: 10.1111/cei.13401] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/08/2019] [Indexed: 02/06/2023] Open
Abstract
Kawasaki disease (KD) is the leading cause of acquired heart disease in children. In addition to coronary artery abnormalities, aneurysms and myocarditis, acute KD is also associated with echocardiogram (ECG) abnormalities in 40-80% of patients. Here, we show that these ECG changes are recapitulated in the Lactobacillus casei cell wall extract (LCWE)-induced KD vasculitis mouse model. LCWE-injected mice developed elevated heart rate and decreased R wave amplitude, with significant differences in prolonged ventricular repolarization. LCWE-injected mice developed cardiac ganglion inflammation, that may affect the impulse-conducting system in the myocardium. Furthermore, serum nerve growth factor (NGF) was significantly elevated in LCWE-injected mice, similar to children with KD vasculitis, associated with increased neural remodeling of the myocardium. ECG abnormalities were prevented by blocking interleukin (IL)-1 signaling with anakinra, and the increase in serum NGF and cardiac neural remodeling were similarly blocked in Il1r1-/- mice and in wild-type mice treated with anakinra. Thus, similar to clinical KD, the LCWE-induced KD vasculitis mouse model also exhibits electrophysiological abnormalities and cardiac neuronal remodeling, and these changes can be prevented by blocking IL-1 signaling. These data support the acceleration of anti-IL-1 therapy trials to benefit KD patients.
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Affiliation(s)
- M Abe
- Divisions of Infectious Diseases and Immunology, Departments of Biomedical Sciences and Pediatrics, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - D D Rastelli
- Divisions of Infectious Diseases and Immunology, Departments of Biomedical Sciences and Pediatrics, Cedars-Sinai Medical Center, Los Angeles, CA, USA.,Division of Gastroenterology and Nutrition, Boston Children's Hospital, Boston, MA, USA
| | - A C Gomez
- Divisions of Infectious Diseases and Immunology, Departments of Biomedical Sciences and Pediatrics, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - E Cingolani
- Cedars-Sinai Medical Center, Cedars-Sinai Smidt Heart Institute, Los Angeles, CA, USA
| | - Y Lee
- Divisions of Infectious Diseases and Immunology, Departments of Biomedical Sciences and Pediatrics, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - P R Soni
- Divisions of Infectious Diseases and Immunology, Departments of Biomedical Sciences and Pediatrics, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - M C Fishbein
- Department of Pathology, David Geffen School of Medicine, UCLA, Los Angeles, CA, USA
| | - T J A Lehman
- Division of Rheumatology, Department of Pediatrics, Weill Cornell Medical School, New York, NY, USA
| | - K Shimada
- Divisions of Infectious Diseases and Immunology, Departments of Biomedical Sciences and Pediatrics, Cedars-Sinai Medical Center, Los Angeles, CA, USA.,Department of Pediatrics, David Geffen School of Medicine, UCLA, Los Angeles, CA, USA
| | - T R Crother
- Divisions of Infectious Diseases and Immunology, Departments of Biomedical Sciences and Pediatrics, Cedars-Sinai Medical Center, Los Angeles, CA, USA.,Department of Pediatrics, David Geffen School of Medicine, UCLA, Los Angeles, CA, USA
| | - S Chen
- Divisions of Infectious Diseases and Immunology, Departments of Biomedical Sciences and Pediatrics, Cedars-Sinai Medical Center, Los Angeles, CA, USA.,Department of Pediatrics, David Geffen School of Medicine, UCLA, Los Angeles, CA, USA
| | - M Noval Rivas
- Divisions of Infectious Diseases and Immunology, Departments of Biomedical Sciences and Pediatrics, Cedars-Sinai Medical Center, Los Angeles, CA, USA.,Department of Pediatrics, David Geffen School of Medicine, UCLA, Los Angeles, CA, USA
| | - M Arditi
- Divisions of Infectious Diseases and Immunology, Departments of Biomedical Sciences and Pediatrics, Cedars-Sinai Medical Center, Los Angeles, CA, USA.,Cedars-Sinai Medical Center, Cedars-Sinai Smidt Heart Institute, Los Angeles, CA, USA.,Department of Pediatrics, David Geffen School of Medicine, UCLA, Los Angeles, CA, USA
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Momcilovic M, Jones A, Bailey ST, Waldmann CM, Li R, Lee JT, Abdelhady G, Gomez A, Holloway T, Schmid E, Stout D, Fishbein MC, Stiles L, Dabir DV, Dubinett SM, Christofk H, Shirihai O, Koehler CM, Sadeghi S, Shackelford DB. In vivo imaging of mitochondrial membrane potential in non-small-cell lung cancer. Nature 2019; 575:380-384. [PMID: 31666695 DOI: 10.1038/s41586-019-1715-0] [Citation(s) in RCA: 127] [Impact Index Per Article: 25.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Accepted: 09/26/2019] [Indexed: 12/21/2022]
Abstract
Mitochondria are essential regulators of cellular energy and metabolism, and have a crucial role in sustaining the growth and survival of cancer cells. A central function of mitochondria is the synthesis of ATP by oxidative phosphorylation, known as mitochondrial bioenergetics. Mitochondria maintain oxidative phosphorylation by creating a membrane potential gradient that is generated by the electron transport chain to drive the synthesis of ATP1. Mitochondria are essential for tumour initiation and maintaining tumour cell growth in cell culture and xenografts2,3. However, our understanding of oxidative mitochondrial metabolism in cancer is limited because most studies have been performed in vitro in cell culture models. This highlights a need for in vivo studies to better understand how oxidative metabolism supports tumour growth. Here we measure mitochondrial membrane potential in non-small-cell lung cancer in vivo using a voltage-sensitive, positron emission tomography (PET) radiotracer known as 4-[18F]fluorobenzyl-triphenylphosphonium (18F-BnTP)4. By using PET imaging of 18F-BnTP, we profile mitochondrial membrane potential in autochthonous mouse models of lung cancer, and find distinct functional mitochondrial heterogeneity within subtypes of lung tumours. The use of 18F-BnTP PET imaging enabled us to functionally profile mitochondrial membrane potential in live tumours.
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Affiliation(s)
- Milica Momcilovic
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA
| | - Anthony Jones
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA
| | - Sean T Bailey
- The Mouse Phase I Unit, Lineberger School of Medicine at the University of North Carolina Chapel Hill, Chapel Hill, NC, USA
| | - Christopher M Waldmann
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA
| | - Rui Li
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA
| | - Jason T Lee
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA.,Crump Institute for Molecular Imaging, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA.,Jonsson Comprehensive Cancer Center, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA
| | - Gihad Abdelhady
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA
| | - Adrian Gomez
- Department of Chemistry and Biochemistry, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA
| | - Travis Holloway
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA
| | - Ernst Schmid
- Department of Biological Chemistry, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA
| | | | - Michael C Fishbein
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA
| | - Linsey Stiles
- Department of Endocrinology, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA
| | - Deepa V Dabir
- Department of Biology, Loyola Marymount University, Los Angeles, CA, USA
| | - Steven M Dubinett
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA.,Department of Molecular and Medical Pharmacology, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA.,Jonsson Comprehensive Cancer Center, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA.,Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA.,VA Greater Los Angeles Healthcare System, Los Angeles, CA, USA
| | - Heather Christofk
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA.,Jonsson Comprehensive Cancer Center, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA.,Department of Biological Chemistry, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA.,UCLA Metabolomics Center, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA
| | - Orian Shirihai
- Jonsson Comprehensive Cancer Center, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA.,Department of Endocrinology, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA
| | - Carla M Koehler
- Department of Chemistry and Biochemistry, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA
| | - Saman Sadeghi
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA
| | - David B Shackelford
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA. .,Jonsson Comprehensive Cancer Center, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA.
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Krysan K, Tran LM, Grimes BS, Fishbein GA, Seki A, Gardner BK, Walser TC, Salehi-Rad R, Yanagawa J, Lee JM, Sharma S, Aberle DR, Spira AE, Elashoff DA, Wallace WD, Fishbein MC, Dubinett SM. The Immune Contexture Associates with the Genomic Landscape in Lung Adenomatous Premalignancy. Cancer Res 2019; 79:5022-5033. [PMID: 31142513 PMCID: PMC6774823 DOI: 10.1158/0008-5472.can-19-0153] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 04/30/2019] [Accepted: 05/21/2019] [Indexed: 12/17/2022]
Abstract
Epithelial cells in the field of lung injury can give rise to distinct premalignant lesions that may bear unique genetic aberrations. A subset of these lesions may escape immune surveillance and progress to invasive cancer; however, the mutational landscape that may predict progression has not been determined. Knowledge of premalignant lesion composition and the associated microenvironment is critical for understanding tumorigenesis and the development of effective preventive and interception strategies. To identify somatic mutations and the extent of immune cell infiltration in adenomatous premalignancy and associated lung adenocarcinomas, we sequenced exomes from 41 lung cancer resection specimens, including 89 premalignant atypical adenomatous hyperplasia lesions, 15 adenocarcinomas in situ, and 55 invasive adenocarcinomas and their adjacent normal lung tissues. We defined nonsynonymous somatic mutations occurring in both premalignancy and the associated tumor as progression-associated mutations whose predicted neoantigens were highly correlated with infiltration of CD8+ and CD4+ T cells as well as upregulation of PD-L1 in premalignant lesions, suggesting the presence of an adaptive immune response to these neoantigens. Each patient had a unique repertoire of somatic mutations and associated neoantigens. Collectively, these results provide evidence for mutational heterogeneity, pathway dysregulation, and immune recognition in pulmonary premalignancy.Significance: These findings identify progression-associated somatic mutations, oncogenic pathways, and association between the mutational landscape and adaptive immune responses in adenomatous premalignancy.See related commentary by Merrick, p. 4811.
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Affiliation(s)
- Kostyantyn Krysan
- Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California. .,VA Greater Los Angeles Healthcare System, Los Angeles, California
| | - Linh M Tran
- Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California
| | - Brandon S Grimes
- Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California
| | - Gregory A Fishbein
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California
| | - Atsuko Seki
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California
| | - Brian K Gardner
- Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California
| | - Tonya C Walser
- Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California
| | - Ramin Salehi-Rad
- Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California.,VA Greater Los Angeles Healthcare System, Los Angeles, California
| | - Jane Yanagawa
- Department of Surgery, David Geffen School of Medicine at UCLA, Los Angeles, California
| | - Jay M Lee
- Department of Surgery, David Geffen School of Medicine at UCLA, Los Angeles, California
| | - Sherven Sharma
- VA Greater Los Angeles Healthcare System, Los Angeles, California
| | - Denise R Aberle
- Department of Radiology, David Geffen School of Medicine at UCLA, Los Angeles, California.,Jonsson Comprehensive Cancer Center, University of California Los Angeles, Los Angeles, California
| | - Arum E Spira
- Department of Medicine and Boston University-BMC Cancer Center, Boston University, Boston, Massachusetts
| | - David A Elashoff
- Department of Biostatistics and Biomathematics, David Geffen School of Medicine at UCLA, Los Angeles, California
| | - William D Wallace
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California
| | - Michael C Fishbein
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California
| | - Steven M Dubinett
- Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California. .,VA Greater Los Angeles Healthcare System, Los Angeles, California.,Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California.,Jonsson Comprehensive Cancer Center, University of California Los Angeles, Los Angeles, California.,Department of Molecular and Medical Pharmacology, David Geffen School of Medicine at UCLA, Los Angeles, California
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35
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Wan J, Chen M, Yuan Y, Wang Z, Shen C, Fishbein MC, Chen Z, Wong J, Grant MB, Everett TH, Chen PS. Antiarrhythmic and proarrhythmic effects of subcutaneous nerve stimulation in ambulatory dogs. Heart Rhythm 2019; 16:1251-1260. [PMID: 30818091 PMCID: PMC6667287 DOI: 10.1016/j.hrthm.2019.02.027] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Indexed: 01/05/2023]
Abstract
BACKGROUND High output subcutaneous nerve stimulation (ScNS) remodels the stellate ganglia and suppresses cardiac arrhythmia. OBJECTIVE The purpose of this study was to test the hypothesis that long duration low output ScNS causes cardiac nerve sprouting and increases plasma norepinephrine concentration and the duration of paroxysmal atrial tachycardia (PAT) in ambulatory dogs. METHODS We prospectively randomized 22 dogs (11 males and 11 females) into 5 different output groups for 2 months of ScNS: 0 mA (sham) (n = 6), 0.25 mA (n = 4), 1.5 mA (n = 4), 2.5 mA (n = 4), and 3.5 mA (n = 4). RESULTS As compared with baseline, the changes in the durations of PAT episodes per 48 hours were significantly different among different groups (sham, -5.0 ± 9.5 seconds; 0.25 mA, 95.5 ± 71.0 seconds; 1.5 mA, -99.3 ± 39.6 seconds; 2.5 mA, -155.3 ± 87.8 seconds; and 3.5 mA, -76.3 ± 44.8 seconds; P < .001). The 3.5 mA group had a greater reduction in sinus heart rate than did the sham group (-29.8 ± 15.0 beats/min vs -14.5 ± 3.0 beats/min; P = .038). Immunohistochemical studies showed that the 0.25 mA group had a significantly increased while 2.5 mA and 3.5 mA stimulation had significantly reduced growth-associated protein 43 nerve densities in both atria and ventricles. The plasma norepinephrine concentrations in the 0.25 mA group was 5063.0 ± 4366.0 pg/mL, which was significantly higher than that in the other groups of dogs (739.3 ± 946.3; P = .009). There were no significant differences in the effects of simulation between males and females. CONCLUSION In ambulatory dogs, low output ScNS causes cardiac nerve sprouting and increases plasma norepinephrine concentration and the duration of PAT episodes while high output ScNS is antiarrhythmic.
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Affiliation(s)
- Juyi Wan
- Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana; Department of Cardiothoracic Surgery, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan Province, China
| | - Mu Chen
- Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana; Department of Cardiology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yuan Yuan
- Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana; Department of Cardiac Surgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhuo Wang
- Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana; Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Changyu Shen
- Richard and Susan Smith Center for Outcomes Research in Cardiology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
| | - Michael C Fishbein
- Department of Pathology and Laboratory Medicine, University of California, Los Angeles, California
| | - Zhenhui Chen
- Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Johnson Wong
- Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Maria B Grant
- Department of Ophthalmology, University of Alabama-Birmingham, Birmingham, Alabama
| | - Thomas H Everett
- Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Peng-Sheng Chen
- Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana.
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Abstract
PURPOSE OF REVIEW This discussion is intended to review the anatomy and pathology of the aortic valve and aortic root region, and to provide a basis for the understanding of and treatment of the important life-threatening diseases that affect the aortic valve. RECENT FINDINGS The most exciting recent finding is that less invasive methods are being developed to treat diseases of the aortic valve. There are no medical cures for aortic valve diseases. Until recently, open-heart surgery was the only effective method of treatment. Now percutaneous approaches to implant bioprosthetic valves into failed native or previously implanted bioprosthetic valves are being developed and utilized. A genetic basis for many of the diseases that affect the aortic valve is being discovered that also should lead to innovative approaches to perhaps prevent these disease. Sequencing of ribosomal RNA is assisting in identifying organisms causing endocarditis, leading to more effective antimicrobial therapy. There is exciting, expanding, therapeutic innovation in the treatment of aortic valve disease.
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Affiliation(s)
- Gregory A Fishbein
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, 10833 Le Conte Ave, CHS 1P-326, Los Angeles, CA, 90095, USA.
| | - Michael C Fishbein
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, 10833 Le Conte Ave, CHS 1P-326, Los Angeles, CA, 90095, USA
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37
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Abstract
PURPOSE OF REVIEW This review discusses the normal anatomy and pathology of the tricuspid valve (TV) and right side of the heart. Emphasis is on those anatomic and pathologic features relevant to interventions intended to restore normal function to the TV in disease states. RECENT FINDINGS TV pathology is less common than aortic and mitral valve pathology, and treatment and outcomes for interventions face considerable hurdles. New innovations and early data showing safety and efficacy in transcatheter interventions have transformed TV interventions into the next frontier in cardiac valve disease treatment. Certain features of the TV and right heart have presented themselves as potential targets, as well as impediments, for TV intervention. The causes of TV pathology and the anatomy of the TV and right heart bring unique challenges to intervention. Approaches to intervention will continue to progress and change the way we view and treat TV pathology.
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Affiliation(s)
- Ryan P Lau
- David Geffen School of Medicine at University of California, Los Angeles, 10833 Le Conte Ave, Los Angeles, CA, 90095, USA.
| | - Gregory A Fishbein
- David Geffen School of Medicine at University of California, Los Angeles, 10833 Le Conte Ave, Los Angeles, CA, 90095, USA
| | - Michael C Fishbein
- David Geffen School of Medicine at University of California, Los Angeles, 10833 Le Conte Ave, Los Angeles, CA, 90095, USA
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Yuan Y, Liu X, Wan J, Wong J, Bedwell AA, Persohn SA, Shen C, Fishbein MC, Chen LS, Chen Z, Everett TH, Territo PR, Chen PS. Subcutaneous nerve stimulation for rate control in ambulatory dogs with persistent atrial fibrillation. Heart Rhythm 2019; 16:1383-1391. [PMID: 31150819 DOI: 10.1016/j.hrthm.2019.05.029] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Indexed: 11/27/2022]
Abstract
BACKGROUND Subcutaneous nerve stimulation (ScNS) damages the stellate ganglion and improves rhythm control of atrial fibrillation (AF) in ambulatory dogs. OBJECTIVE The purpose of this study was to test the hypothesis that thoracic ScNS can improve rate control in persistent AF. METHODS We created persistent AF in 13 dogs and randomly assigned them to ScNS (n = 6) and sham control (n = 7) groups. 18F-2-Fluoro-2-deoxyglucose positron emission tomography/magnetic resonance imaging of the brain stem was performed at baseline and at the end of the study. RESULTS The average stellate ganglion nerve activity reduced from 4.00 ± 1.68 μV after the induction of persistent AF to 1.72 ± 0.42 μV (P = .032) after ScNS. In contrast, the average stellate ganglion nerve activity increased from 3.01 ± 1.26 μV during AF to 5.52 ± 2.69 μV after sham stimulation (P = .023). The mean ventricular rate during persistent AF reduced from 149 ± 36 to 84 ± 16 beats/min (P = .011) in the ScNS group, but no changes were observed in the sham control group. The left ventricular ejection fraction remained unchanged in the ScNS group but reduced significantly in the sham control group. Immunostaining showed damaged ganglion cells in bilateral stellate ganglia and increased brain stem glial cell reaction in the ScNS group but not in the control group. The 18F-2-fluoro-2-deoxyglucose uptake in the pons and medulla was significantly (P = .011) higher in the ScNS group than the sham control group at the end of the study. CONCLUSION Thoracic ScNS causes neural remodeling in the brain stem and stellate ganglia, controls the ventricular rate, and preserves the left ventricular ejection fraction in ambulatory dogs with persistent AF.
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Affiliation(s)
- Yuan Yuan
- The Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana; Department of Cardiothoracic Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Xiao Liu
- The Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Juyi Wan
- The Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana; Department of Cardiothoracic Surgery, the Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan Province, China
| | - Johnson Wong
- The Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Amanda A Bedwell
- Department of Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, Indiana
| | - Scott A Persohn
- Department of Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, Indiana
| | - Changyu Shen
- Richard and Susan Smith Center for Outcomes Research in Cardiology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
| | - Michael C Fishbein
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California
| | - Lan S Chen
- Department of Neurology, Indiana University School of Medicine, Indianapolis, Indiana
| | - Zhenhui Chen
- The Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Thomas H Everett
- The Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Paul R Territo
- Department of Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, Indiana
| | - Peng-Sheng Chen
- The Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana.
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Abstract
PURPOSE OF REVIEW This review describes the normal structure and pathologic changes that affect the right-sided cardiac valves and chambers. RECENT FINDINGS The anatomy and pathology described have been known for many years. Knowledge of these findings has gained relevance. The pattern of endocarditis is changing. New diagnostic techniques have allowed better characterization of lesions responsible for cardiac dysfunction. Novel, less invasive interventions have made recognition of abnormalities more clinically relevant. There are many different pathologic entities that can affect the right-sided cardiac valves. These are discussed in this review.
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Affiliation(s)
- Gregory A Fishbein
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, 10833 Le Conte Ave, CHS 13-145, Los Angeles, CA, 90095, USA.
| | - Michael C Fishbein
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, 10833 Le Conte Ave, CHS 13-145, Los Angeles, CA, 90095, USA
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Palchevskiy V, Xue YY, Kern R, Weigt SS, Gregson AL, Song SX, Fishbein MC, Hogaboam CM, Sayah DM, Lynch JP, Keane MP, Brooks DG, Belperio JA. CCR4 expression on host T cells is a driver for alloreactive responses and lung rejection. JCI Insight 2019; 5:121782. [PMID: 31085832 DOI: 10.1172/jci.insight.121782] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Despite current immunosuppressive strategies, long-term lung transplant outcomes remain poor due to rapid allogenic responses. Using a stringent mouse model of allo-airway transplantation, we identify the CCR4-ligand axis as a central node driving secondary lymphoid tissue homing and activation of the allogeneic T cells that prevent long-term allograft survival. CCR4 deficiency on transplant recipient T cells diminishes allograft injury and when combined with CTLA4-Ig leads to an unprecedented long-term lung allograft accommodation. Thus, we identify CCR4-ligand interactions as a central mechanism driving allogeneic transplant rejection and suggest it as a potential target to enhance long-term lung transplant survival.
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Affiliation(s)
- Vyacheslav Palchevskiy
- Department of Medicine, David Geffen School of Medicine, UCLA, Los Angeles, California, USA
| | - Ying Ying Xue
- Department of Medicine, David Geffen School of Medicine, UCLA, Los Angeles, California, USA
| | - Rita Kern
- Department of Medicine, David Geffen School of Medicine, UCLA, Los Angeles, California, USA
| | - Stephen S Weigt
- Department of Medicine, David Geffen School of Medicine, UCLA, Los Angeles, California, USA
| | - Aric L Gregson
- Department of Medicine, David Geffen School of Medicine, UCLA, Los Angeles, California, USA
| | - Sophie X Song
- Department of Medicine, David Geffen School of Medicine, UCLA, Los Angeles, California, USA
| | - Michael C Fishbein
- Department of Medicine, David Geffen School of Medicine, UCLA, Los Angeles, California, USA
| | - Cory M Hogaboam
- Pulmonary & Critical Care Medicine, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - David M Sayah
- Department of Medicine, David Geffen School of Medicine, UCLA, Los Angeles, California, USA
| | - Joseph P Lynch
- Department of Medicine, David Geffen School of Medicine, UCLA, Los Angeles, California, USA
| | - Michael P Keane
- University College Dublin School of Medicine, Respiratory Medicine, St Vincent's University Hospital, Dublin, Ireland
| | - David G Brooks
- Princess Margaret Cancer Center, University Health Network and Department of Immunology, University of Toronto, Toronto, Ontario, Canada
| | - John A Belperio
- Department of Medicine, David Geffen School of Medicine, UCLA, Los Angeles, California, USA
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Seki A, Anklesaria Z, Saggar R, Dodson MW, Schwab K, Liu MC, Charan Ashana D, Miller WD, Vangala S, DerHovanessian A, Channick R, Shaikh F, Belperio JA, Weigt SS, Lynch JP, Ross DJ, Sullivan L, Khanna D, Shapiro SS, Sager J, Gargani L, Stanziola A, Bossone E, Schraufnagel DE, Fishbein G, Xu H, Fishbein MC, Wallace WD, Saggar R. Capillary Proliferation in Systemic-Sclerosis-Related Pulmonary Fibrosis: Association with Pulmonary Hypertension. ACR Open Rheumatol 2019; 1:26-36. [PMID: 31777777 PMCID: PMC6858021 DOI: 10.1002/acr2.1003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Objective We sought to determine if any histopathologic component of the pulmonary microcirculation can distinguish systemic sclerosis (SSc)‐related pulmonary fibrosis (PF) with and without pulmonary hypertension (PH). Methods Two pulmonary pathologists blindly evaluated 360 histologic slides from lungs of 31 SSc‐PF explants or autopsies with (n = 22) and without (n = 9) PH. The presence of abnormal small arteries, veins, and capillaries (pulmonary microcirculation) was semiquantitatively assessed in areas of preserved lung architecture. Capillary proliferation (CP) within the alveolar walls was measured by its distribution, extent (CP % involvement), and maximum number of layers (maximum CP). These measures were then evaluated to determine the strength of their association with right heart catheterization–proven PH. Results Using consensus measures, all measures of CP were significantly associated with PH. Maximum CP had the strongest association with PH (P = 0.013; C statistic 0.869). Maximum CP 2 or more layers and CP % involvement 10% or greater were the optimal thresholds that predicted PH, both with a sensitivity of 56% and specificity of 91%. The CP was typically multifocal rather than focal or diffuse and was associated with a background pattern of usual interstitial pneumonia. There was a significant but weaker relationship between the presence of abnormal small arteries and veins and PH. Conclusion In the setting of advanced SSc‐PF, the histopathologic feature of the pulmonary microcirculation best associated with PH was capillary proliferation in architecturally preserved lung areas.
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Affiliation(s)
| | | | - Rajeev Saggar
- Banner University Medical Center University of Arizona Phoenix
| | - Mark W Dodson
- Intermountain Medical Center, Murray, Utah and University of Utah School of Medicine Salt Lake City
| | | | | | | | | | | | | | | | | | | | | | | | | | | | - Dinesh Khanna
- University of Michigan Scleroderma Program Ann Arbor
| | | | - Jeffrey Sager
- Santa Barbara Pulmonary Associates Santa Barbara California
| | - Luna Gargani
- Institution of Clinical Physiology National Research Council Pisa Italy
| | | | | | | | | | - Haodong Xu
- University of Washington School of Medicine Seattle
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Matundan HH, Sin J, Rivas MN, Fishbein MC, Lehman TJ, Chen S, Gottlieb RA, Crother TR, Abe M, Arditi M. Myocardial fibrosis after adrenergic stimulation as a long-term sequela in a mouse model of Kawasaki disease vasculitis. JCI Insight 2019; 4:126279. [PMID: 30728329 DOI: 10.1172/jci.insight.126279] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Accepted: 01/03/2019] [Indexed: 12/13/2022] Open
Abstract
Kawasaki disease (KD), the leading cause of acquired cardiac disease among children, is often associated with myocarditis that may lead to long-term myocardial dysfunction and fibrosis. Although those myocardial changes develop during the acute phase, they may persist for decades and closely correlate with long-term myocardial sequelae. Using the Lactobacillus casei cell wall extract-induced (LCWE-induced) KD vasculitis murine model, we investigated long-term cardiovascular sequelae, such as myocardial dysfunction, fibrosis, and coronary microvascular lesions following adrenergic stimuli after established KD vasculitis. We found that adrenergic stimulation with isoproterenol following LCWE-induced KD vasculitis in mice was associated with increased risk of cardiac hypertrophy and myocardial fibrosis, diminished ejection fraction, and increased serum levels of brain natriuretic peptide. Myocardial fibrosis resulting from pharmacologic-induced exercise after KD development was IL-1 signaling dependent and was associated with a significant reduction in myocardial capillary CD31 expression, indicative of a rarefied myocardial capillary bed. These observations suggest that adrenergic stimulation after KD vasculitis may lead to cardiac hypertrophy and bridging fibrosis in the myocardium in the LCWE-induced KD vasculitis mouse model and that this process involves IL-1 signaling and diminished microvascular circulation in the myocardium.
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Affiliation(s)
- Harry H Matundan
- Departments of Biomedical Sciences and Pediatrics, Divisions of Infectious Diseases and Immunology
| | - Jon Sin
- Cedars-Sinai Heart Institute, Barbra Streisand Women's Heart Center, and
| | - Magali Noval Rivas
- Departments of Biomedical Sciences and Pediatrics, Divisions of Infectious Diseases and Immunology.,Infectious and Immunologic Diseases Research Center, Cedars-Sinai Medical Center, Los Angeles, California, USA.,Department of Pediatrics and
| | - Michael C Fishbein
- Department of Pathology, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | - Thomas J Lehman
- Pediatric Rheumatology, Hospital for Special Surgery and Weill Medical College of Cornell University, New York, New York, USA
| | - Shuang Chen
- Departments of Biomedical Sciences and Pediatrics, Divisions of Infectious Diseases and Immunology.,Infectious and Immunologic Diseases Research Center, Cedars-Sinai Medical Center, Los Angeles, California, USA.,Department of Pediatrics and
| | - Roberta A Gottlieb
- Cedars-Sinai Heart Institute, Barbra Streisand Women's Heart Center, and
| | - Timothy R Crother
- Departments of Biomedical Sciences and Pediatrics, Divisions of Infectious Diseases and Immunology.,Infectious and Immunologic Diseases Research Center, Cedars-Sinai Medical Center, Los Angeles, California, USA.,Department of Pediatrics and
| | - Masanori Abe
- Departments of Biomedical Sciences and Pediatrics, Divisions of Infectious Diseases and Immunology
| | - Moshe Arditi
- Departments of Biomedical Sciences and Pediatrics, Divisions of Infectious Diseases and Immunology.,Cedars-Sinai Heart Institute, Barbra Streisand Women's Heart Center, and.,Infectious and Immunologic Diseases Research Center, Cedars-Sinai Medical Center, Los Angeles, California, USA.,Department of Pediatrics and
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Pan Z, Ai T, Chang PC, Liu Y, Liu J, Maruyama M, Homsi M, Fishbein MC, Rubart M, Lin SF, Xiao D, Chen H, Chen PS, Shou W, Li BY. Atrial fibrillation and electrophysiology in transgenic mice with cardiac-restricted overexpression of FKBP12. Am J Physiol Heart Circ Physiol 2019; 316:H371-H379. [PMID: 30499712 PMCID: PMC6397388 DOI: 10.1152/ajpheart.00486.2018] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 11/19/2018] [Accepted: 11/19/2018] [Indexed: 12/19/2022]
Abstract
Cardiomyocyte-restricted overexpression of FK506-binding protein 12 transgenic (αMyHC-FKBP12) mice develop spontaneous atrial fibrillation (AF). The aim of the present study is to explore the mechanisms underlying the occurrence of AF in αMyHC-FKBP12 mice. Spontaneous AF was documented by telemetry in vivo and Langendorff-perfused hearts of αMyHC-FKBP12 and littermate control mice in vitro. Atrial conduction velocity was evaluated by optical mapping. The patch-clamp technique was applied to determine the potentially altered electrophysiology in atrial myocytes. Channel protein expression levels were evaluated by Western blot analyses. Spontaneous AF was recorded in four of seven αMyHC-FKBP12 mice but in none of eight nontransgenic (NTG) controls. Atrial conduction velocity was significantly reduced in αMyHC-FKBP12 hearts compared with NTG hearts. Interestingly, the mean action potential duration at 50% but not 90% was significantly prolonged in αMyHC-FKBP12 atrial myocytes compared with their NTG counterparts. Consistent with decreased conduction velocity, average peak Na+ current ( INa) density was dramatically reduced and the INa inactivation curve was shifted by approximately +7 mV in αMyHC-FKBP12 atrial myocytes, whereas the activation and recovery curves were unaltered. The Nav1.5 expression level was significantly reduced in αMyHC-FKBP12 atria. Furthermore, we found increases in atrial Cav1.2 protein levels and peak L-type Ca2+ current density and increased levels of fibrosis in αMyHC-FKBP12 atria. In summary, cardiomyocyte-restricted overexpression of FKBP12 reduces the atrial Nav1.5 expression level and mean peak INa, which is associated with increased peak L-type Ca2+ current and interstitial fibrosis in atria. The combined electrophysiological and structural changes facilitated the development of local conduction block and altered action potential duration and spontaneous AF. NEW & NOTEWORTHY This study addresses a long-standing riddle regarding the role of FK506-binding protein 12 in cardiac physiology. The work provides further evidence that FK506-binding protein 12 is a critical component for regulating voltage-gated sodium current and in so doing has an important role in arrhythmogenic physiology, such as atrial fibrillation.
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Affiliation(s)
- Zhenwei Pan
- Department of Pharmacology, Harbin Medical University, Heilonjiang, China
- Krannert Institute for Cardiology and the Division of Cardiology, Indiana University School of Medicine , Indianapolis, Indiana
| | - Tomohiko Ai
- Krannert Institute for Cardiology and the Division of Cardiology, Indiana University School of Medicine , Indianapolis, Indiana
| | - Po-Cheng Chang
- Krannert Institute for Cardiology and the Division of Cardiology, Indiana University School of Medicine , Indianapolis, Indiana
- The Second Section of Cardiology, Departments of Medicine, Chang Gung Memorial Hospital and Chang Gung University School of Medicine , Taoyuan , Taiwan
| | - Ying Liu
- Wells Center for Pediatric Research, Indiana University School of Medicine , Indianapolis, Indiana
| | - Jijia Liu
- Wells Center for Pediatric Research, Indiana University School of Medicine , Indianapolis, Indiana
- The Second Xiangya Hospital, South Central University School of Medicine , China
| | - Mitsunori Maruyama
- Krannert Institute for Cardiology and the Division of Cardiology, Indiana University School of Medicine , Indianapolis, Indiana
| | - Mohamed Homsi
- Krannert Institute for Cardiology and the Division of Cardiology, Indiana University School of Medicine , Indianapolis, Indiana
| | - Michael C Fishbein
- Department of Pathology and Laboratory Medicine, University of California , Los Angeles, California
| | - Michael Rubart
- Wells Center for Pediatric Research, Indiana University School of Medicine , Indianapolis, Indiana
| | - Shien-Fong Lin
- Krannert Institute for Cardiology and the Division of Cardiology, Indiana University School of Medicine , Indianapolis, Indiana
| | - Deyong Xiao
- Fountain Valley Biotechnology, Inc., Dalian Hi-Tech District, Dalian , China
| | - Hanying Chen
- Wells Center for Pediatric Research, Indiana University School of Medicine , Indianapolis, Indiana
| | - Peng-Sheng Chen
- Krannert Institute for Cardiology and the Division of Cardiology, Indiana University School of Medicine , Indianapolis, Indiana
| | - Weinian Shou
- Wells Center for Pediatric Research, Indiana University School of Medicine , Indianapolis, Indiana
| | - Bai-Yan Li
- Department of Pharmacology, Harbin Medical University, Heilonjiang, China
- Wells Center for Pediatric Research, Indiana University School of Medicine , Indianapolis, Indiana
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Tewari P, Garritano J, Bajwa N, Sung S, Huang H, Wang D, Grundfest W, Ennis DB, Ruan D, Brown E, Dutson E, Fishbein MC, Taylor Z. Methods for registering and calibrating in vivo terahertz images of cutaneous burn wounds. Biomed Opt Express 2019; 10:322-337. [PMID: 30775103 PMCID: PMC6363189 DOI: 10.1364/boe.10.000322] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2018] [Revised: 03/17/2018] [Accepted: 04/01/2018] [Indexed: 05/19/2023]
Abstract
A method to register THz and visible images of cutaneous burn wounds and to calibrate THz image data is presented. Images of partial and full thickness burn wounds in 9 rats were collected over 435 mins. = 7.25 hours following burn induction. A two-step process was developed to reference the unknown structure of THz imaging contrast to the known structure and the features present in visible images of the injury. This process enabled the demarcation of a wound center for each THz image, independent of THz contrast. Threshold based segmentation enabled the automated identification of air (0% reflectivity), brass (100% reflectivity), and abdomen regions within the registered THz images. Pixel populations, defined by the segmentations, informed unsupervised image calibration and contrast warping for display. The registered images revealed that the largest variation in THz tissue reflectivity occurred superior to the contact region at ~0.13%/min. Conversely the contact region showed demonstrated an ~6.5-fold decrease at ~0.02%/min. Exploration of occlusion effects suggests that window contact may affect the measured edematous response.
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Affiliation(s)
- Priyamvada Tewari
- Department of Bioengineering, University of Los Angeles, California, 410 Westwood Plaza, Los Angeles, CA 90025, USA
| | - James Garritano
- Department of Bioengineering, University of Los Angeles, California, 410 Westwood Plaza, Los Angeles, CA 90025, USA
| | - Neha Bajwa
- Department of Bioengineering, University of Los Angeles, California, 410 Westwood Plaza, Los Angeles, CA 90025, USA
| | - Shijun Sung
- Department of Bioengineering, University of Los Angeles, California, 410 Westwood Plaza, Los Angeles, CA 90025, USA
- Department of Electrical Engineering, University of Los Angeles, California, 410 Westwood Plaza, Los Angeles, CA 90025, USA
| | - Haochong Huang
- School of Science, China University of Geosciences, Beijing 100083, China
| | - Dayong Wang
- College of Applied Sciences & Beijing Engineering Research Center of Precision Measurement and Control Technology and Instruments, Beijing University of Technology, No. 100 Pingleyuan Rd., Beijing 100124, China
| | - Warren Grundfest
- Department of Bioengineering, University of Los Angeles, California, 410 Westwood Plaza, Los Angeles, CA 90025, USA
- Department of Electrical Engineering, University of Los Angeles, California, 410 Westwood Plaza, Los Angeles, CA 90025, USA
- Department of Surgery, University of Los Angeles, California, 200 Medical Plaza, Los Angeles, CA 90025, USA
| | - Daniel B. Ennis
- Department of Bioengineering, University of Los Angeles, California, 410 Westwood Plaza, Los Angeles, CA 90025, USA
- Department of Radiological Sciences, University of Los Angeles, California, 200 Medical Plaza, Los Angeles, CA 90025, USA
| | - Dan Ruan
- Department of Bioengineering, University of Los Angeles, California, 410 Westwood Plaza, Los Angeles, CA 90025, USA
- Department of Radiation Oncology, University of Los Angeles, California, 200 Medical Plaza, Los Angeles, CA 90025, USA
| | - Elliott Brown
- Department of Electrical Engineering, Wright State University, 3640 Colonel Glenn Hwy., Dayton, OH 45435, USA
| | - Erik Dutson
- Department of Surgery, University of Los Angeles, California, 200 Medical Plaza, Los Angeles, CA 90025, USA
| | - Michael C. Fishbein
- Department of Pathology and Laboratory Medicine, University of Los Angeles, California, 200 Medical Plaza, Los Angeles, CA 90025, USA
| | - Zachary Taylor
- Department of Bioengineering, University of Los Angeles, California, 410 Westwood Plaza, Los Angeles, CA 90025, USA
- Department of Electrical Engineering, University of Los Angeles, California, 410 Westwood Plaza, Los Angeles, CA 90025, USA
- Department of Surgery, University of Los Angeles, California, 200 Medical Plaza, Los Angeles, CA 90025, USA
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Hoffmann-Vold AM, Weigt SS, Palchevskiy V, Volkmann E, Saggar R, Li N, Midtvedt Ø, Lund MB, Garen T, Fishbein MC, Ardehali A, Ross DJ, Ueland T, Aukrust P, Lynch JP, Elashoff RM, Molberg Ø, Belperio JA. Augmented concentrations of CX3CL1 are associated with interstitial lung disease in systemic sclerosis. PLoS One 2018; 13:e0206545. [PMID: 30457999 PMCID: PMC6245508 DOI: 10.1371/journal.pone.0206545] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Accepted: 10/15/2018] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND Dysregulation of Fractalkine (CX3CL1) and its receptor CX3CR1 has been linked to the pathobiology of chronic inflammatory conditions. We explored CX3CL1 in systemic sclerosis (SSc) related progressive interstitial lung disease (ILD) and pulmonary hypertension (PH) in two different but complementary sources of biomaterial. METHODS We collected lung tissue at the time of lung transplantation at UCLA from SSc-ILD patients (n = 12) and healthy donors (n = 12); and serum samples from the prospective Oslo University Hospital SSc cohort (n = 292) and healthy donors (n = 100). CX3CL1 was measured by ELISA. Cellular sources of CX3CL1/CX3CR1 in lung tissues were determined by immunohistochemistry and immunofluorescence. ILD progression and new onset PH endpoints were analysed. RESULTS CX3CL1 concentrations were increased in SSc in lung tissue as well as in sera. In the UCLA cohort, CX3CL1 was highly correlated with DLCO. In the SSc-ILD lungs, CX3CL1 was identified in reactive type II pneumocytes and airway epithelial cells. CX3CR1 stained infiltrating interstitial mononuclear cells, especially plasma cells. In the Oslo cohort, CX3CL1 correlated with anti-Topoisomerase-I-antibody and lung fibrosis. CX3CL1 was associated with ILD progression in multivariable regression analysis but not PH. CONCLUSION CX3CL1 is associated with progressive SSc-ILD but not SSc-PH. The CX3CR1/CX3CL1-biological axis may be involved in recruiting antibody secreting plasma cells to SSc lungs, thereby contributing to the immune-mediated pathobiology of SSc-ILD.
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Affiliation(s)
- Anna-Maria Hoffmann-Vold
- Department of Rheumatology, Oslo University Hospital, Rikshospitalet, Oslo, Norway
- Institute of Clinical Medicine, University of Oslo, Rikshospitalet, Oslo, Norway
| | - Stephen Samuel Weigt
- Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California, United States of America
| | - Vyacheslav Palchevskiy
- Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California, United States of America
| | - Elizabeth Volkmann
- Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California, United States of America
| | - Rajan Saggar
- Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California, United States of America
| | - Ning Li
- Department of Biomathematics, David Geffen School of Medicine at UCLA, Los Angeles, California, United States of America
| | - Øyvind Midtvedt
- Department of Rheumatology, Oslo University Hospital, Rikshospitalet, Oslo, Norway
| | - May Brit Lund
- Institute of Clinical Medicine, University of Oslo, Rikshospitalet, Oslo, Norway
- Department of Pulmonary Disease, Oslo University Hospital, Rikshospitalet, Norway
| | - Torhild Garen
- Department of Rheumatology, Oslo University Hospital, Rikshospitalet, Oslo, Norway
| | - Michael C. Fishbein
- Department of Pathology, UCLA, Los Angeles, California, United States of America
| | - Abbas Ardehali
- Department of Surgery, UCLA, Los Angeles, California, United States of America
| | - David J. Ross
- Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California, United States of America
| | - Thor Ueland
- Section of Clinical Immunology and Infectious Diseases, Oslo University Hospital, Rikshospitalet, Norway
| | - Pål Aukrust
- Section of Clinical Immunology and Infectious Diseases, Oslo University Hospital, Rikshospitalet, Norway
- K.G. Jebsen Inflammatory Research Center, University of Oslo, Norway
- Research Institute of Internal Medicine, Oslo University Hospital, Rikshospitalet, Oslo, Norway
| | - Joseph P. Lynch
- Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California, United States of America
| | - Robert M. Elashoff
- Department of Biomathematics, David Geffen School of Medicine at UCLA, Los Angeles, California, United States of America
| | - Øyvind Molberg
- Department of Rheumatology, Oslo University Hospital, Rikshospitalet, Oslo, Norway
- Institute of Clinical Medicine, University of Oslo, Rikshospitalet, Oslo, Norway
| | - John A. Belperio
- Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California, United States of America
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Yanagawa J, Fung E, Lee MH, Wallace WD, Fishbein MC, Paul M, Krysan K, Minna JD, Guo R, Elashoff D, Lee JM, Dubinett SM. Abstract B20: Premalignant lung lesions demonstrate enhanced PD-L1 upregulation in response to interferon-gamma exposure. Clin Cancer Res 2018. [DOI: 10.1158/1557-3265.aacriaslc18-b20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Interferon-gamma (IFN-g) is known to play a pivotal role in PD-L1 expression and immune evasion in cancer cells, but there is little known regarding its interactions with premalignant lung lesions.
Methods: Immortalized human bronchial epithelial cells (HBEC-vector control), KRAS-mutated (KRASv12) HBEC cells (HBEC-KRAS), p53 knockdown HBEC cells (HBEC-p53), and p53 knockdown/KRAS mutated cells (HBEC-p53/KRAS) were used to assess mRNA expression as well as surface and total protein expression levels of PD-L1 by RT-PCR, flow cytometry, and Western blot before and after treatment with IFN-g. For STAT-1 knockdown, cells were transiently transfected using Lipofectamine RNAiMAX (Thermo Scientific). After 48 hours of transfection, cells were incubated with IFN-g (50 ng/mL) or PBS with 0.1% BSA for 48 hours, then harvested and analyzed by RT-PCR, flow cytometry, and Western blot. An FFPE tissue block from a patient with known premalignant lesions and lung adenocarcinoma was obtained from the UCLA Lung Cancer Tissue Repository and sectioned to create slides for H&E staining and to identify areas of atypical adenomatous hyperplasia. Serial sectioning was performed to create slides for multiplex staining, targeting anti-PD-L1, anti-p-STAT1-Ser747, and anti-CD8. Quantitative image analysis was performed with Visiopharm.
Results: Using RT-PCR, flow cytometry, and Western blot, exposure to IFN-g led to upregulation of PD-L1 in HBECs with various gene mutations (HBEC-vector compared to HBEC-Kras, HBEC-p53, HBEC-KRAS/p53, HBEC-EGFR-L858R) (p<0.05). These experiments demonstrated that PD-L1 is elevated at the mRNA and protein levels with IFN-g exposure, with the greatest upregulation in HBECs with KRAS mutation (p<0.013). To investigate potential mechanisms of PD-L1 upregulation in premalignant cell lines after IFN-g exposure, we evaluated levels of STAT1, pSTAT1, ERK, pERK, AKT, and pAKT in the paired HBEC3 vector and KRAS cell lines. On Western blot, pSTAT1 was the only signaling protein that was upregulated after IFN-g exposure. We then performed STAT-1 knockdown of HBEC3-vector and HBEC3-KRAS cell lines. With IFN-g exposure, there was significantly diminished PD-L1 upregulation in the HBEC3-KRAS with STAT-1 knockdown as compared to the HBEC3-KRAS control (p<0.002). In our human staining, there was increased CD8 T cells (11% versus 2.5%) and pSTAT1 (80% versus 32%) in the vicinity of premalignant lesions as compared to normal tissues. In addition, although we identified sporadic premalignant epithelial cells with membranous PD-L1 staining, no PD-L1 staining was identified in any normal epithelial cells.
Conclusions: Premalignant lung lesions may contribute to immune evasion by responding to IFN-gamma exposure with enhanced PD-L1 upregulation via pSTAT1 signaling. Further studies are required to establish the role of IFN-gamma in the immune microenvironment of premalignant lung lesions.
Citation Format: Jane Yanagawa, Eileen Fung, Mi-Heon Lee, W. Dean Wallace, Michael C. Fishbein, Manash Paul, Kostyantyn Krysan, John D. Minna, Rong Guo, David Elashoff, Jay M. Lee, Steven M. Dubinett. Premalignant lung lesions demonstrate enhanced PD-L1 upregulation in response to interferon-gamma exposure [abstract]. In: Proceedings of the Fifth AACR-IASLC International Joint Conference: Lung Cancer Translational Science from the Bench to the Clinic; Jan 8-11, 2018; San Diego, CA. Philadelphia (PA): AACR; Clin Cancer Res 2018;24(17_Suppl):Abstract nr B20.
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Affiliation(s)
- Jane Yanagawa
- University of California Los Angeles, Los Angeles, CA
| | - Eileen Fung
- University of California Los Angeles, Los Angeles, CA
| | - Mi-Heon Lee
- University of California Los Angeles, Los Angeles, CA
| | | | | | - Manash Paul
- University of California Los Angeles, Los Angeles, CA
| | | | - John D. Minna
- University of California Los Angeles, Los Angeles, CA
| | - Rong Guo
- University of California Los Angeles, Los Angeles, CA
| | | | - Jay M. Lee
- *Co-senior authors
- University of California Los Angeles, Los Angeles, CA
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Wynne J, Fishbein MC, Holman BL, Alpert JS. Radionuclide Scintigraphy in the Evaluation of Ventricular Septal Defect Complicating Acute Myocardial Infarction. ACTA ACUST UNITED AC 2018. [DOI: 10.1002/ccd.1978.4.2.189] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Jiang Z, Zhao Y, Tsai WC, Yuan Y, Chinda K, Tan J, Onkka P, Shen C, Chen LS, Fishbein MC, Lin SF, Chen PS, Everett TH. Effects of Vagal Nerve Stimulation on Ganglionated Plexi Nerve Activity and Ventricular Rate in Ambulatory Dogs With Persistent Atrial Fibrillation. JACC Clin Electrophysiol 2018; 4:1106-1114. [PMID: 30139493 DOI: 10.1016/j.jacep.2018.05.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 05/03/2018] [Accepted: 05/04/2018] [Indexed: 01/09/2023]
Abstract
OBJECTIVES This study was designed to test the hypothesis that low-level vagal nerve stimulation (VNS) reduces the ventricular rate (VR) during atrial fibrillation (AF) through the activation of the inferior vena cava (IVC)-inferior atrial ganglionated plexus nerve activity (IAGPNA). BACKGROUND Increased IVC-IAGPNA can suppress atrioventricular node conduction and slow VR in canine models of AF. METHODS Persistent AF was induced in 6 dogs and the IVC-IAGPNA, right vagal nerve activity, left vagal nerve activity, and an electrocardiogram were recorded. After persistent AF was documented, VNS was programed to 14 s "on" and 1.1 min "off." After 1 week, the VNS was reprogramed to 3 min off and stimulation continued for another week. Neural remodeling of the stellate ganglion (SG) was assessed with tyrosine hydroxylase staining and terminal deoxynucleotidyl transferase deoxyuridine triphosphate nick-end labeling staining. RESULTS Average IVC-IAGPNA was increased during both VNS 1.1 min off (8.20 ± 2.25 μV [95% confidence interval (CI): 6.33 to 9.53 μV]; p = 0.002) and 3 min off (7.96 ± 2.03 μV [95% CI: 6.30 to 9.27 μV]; p = 0.001) versus baseline (7.14 ± 2.20 μV [95% CI: 5.35 to 8.52 μV]). VR was reduced during both VNS 1.1 min off (123.29 ± 6.29 beats/min [95% CI: 116.69 to 129.89 beats/min]; p = 0.001) and 3 min off (120.01 ± 4.93 beats/min [95% CI: 114.84 to 125.18 beats/min]; p = 0.001) compared to baseline (142.04 ± 7.93 bpm [95% CI: 133.72 to 150.37]). Abnormal regions were observed in the left SG, but not in the right SG. Terminal deoxynucleotidyl transferase deoxyuridine triphosphate nick-end labeling-positive neurons were found in 22.2 ± 17.2% [95% CI: 0.9% to 43.5%] of left SG cells and 12.8 ± 8.4% [95% CI: 2.4% to 23.2%] of right SG cells. CONCLUSIONS Chronic low-level VNS increases IVC-IAGPNA and damages bilateral stellate ganglia. Both mechanisms could contribute to the underlying mechanism of VR control during AF.
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Affiliation(s)
- Zhaolei Jiang
- Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana; Department of Cardiothoracic Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Ye Zhao
- Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana; Department of Cardiac Surgery, the First Affiliated Hospital of China Medical University, Shenyang, Liaoning, China
| | - Wei-Chung Tsai
- Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana; Division of Cardiology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yuan Yuan
- Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana; Department of Cardiothoracic Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Kroekkiat Chinda
- Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana; Department of Physiology, Faculty of Medical Science, Naresuan University, Phitsanulok, Thailand
| | - Jian Tan
- Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Patrick Onkka
- Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Changyu Shen
- Richard and Susan Smith Center for Outcomes Research in Cardiology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
| | - Lan S Chen
- Department of Neurology, Indiana University School of Medicine, Indianapolis, Indiana
| | - Michael C Fishbein
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California
| | - Shien-Fong Lin
- Institute of Biomedical Engineering, National Chiao-Tung University, Hsin-Chu, Taiwan
| | - Peng-Sheng Chen
- Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Thomas H Everett
- Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana.
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Momcilovic M, Bailey ST, Lee JT, Fishbein MC, Braas D, Go J, Graeber TG, Parlati F, Demo S, Li R, Walser TC, Gricowski M, Shuman R, Ibarra J, Fridman D, Phelps ME, Badran K, St John M, Bernthal NM, Federman N, Yanagawa J, Dubinett SM, Sadeghi S, Christofk HR, Shackelford DB. The GSK3 Signaling Axis Regulates Adaptive Glutamine Metabolism in Lung Squamous Cell Carcinoma. Cancer Cell 2018; 33:905-921.e5. [PMID: 29763624 PMCID: PMC6451645 DOI: 10.1016/j.ccell.2018.04.002] [Citation(s) in RCA: 123] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Revised: 01/17/2018] [Accepted: 04/05/2018] [Indexed: 12/20/2022]
Abstract
Altered metabolism is a hallmark of cancer growth, forming the conceptual basis for development of metabolic therapies as cancer treatments. We performed in vivo metabolic profiling and molecular analysis of lung squamous cell carcinoma (SCC) to identify metabolic nodes for therapeutic targeting. Lung SCCs adapt to chronic mTOR inhibition and suppression of glycolysis through the GSK3α/β signaling pathway, which upregulates glutaminolysis. Phospho-GSK3α/β protein levels are predictive of response to single-therapy mTOR inhibition while combinatorial treatment with the glutaminase inhibitor CB-839 effectively overcomes therapy resistance. In addition, we identified a conserved metabolic signature in a broad spectrum of hypermetabolic human tumors that may be predictive of patient outcome and response to combined metabolic therapies targeting mTOR and glutaminase.
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Affiliation(s)
- Milica Momcilovic
- Department of Pulmonary and Critical Care Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA
| | - Sean T Bailey
- Department of Pulmonary and Critical Care Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA
| | - Jason T Lee
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA; Crump Institute for Molecular Imaging, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA
| | - Michael C Fishbein
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA
| | - Daniel Braas
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA; UCLA Metabolomics Center, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA
| | - James Go
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA
| | - Thomas G Graeber
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA; Jonsson Comprehensive Cancer Center, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA; UCLA Metabolomics Center, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA
| | | | - Susan Demo
- Calithera Biosciences, South San Francisco, CA 94080, USA
| | - Rui Li
- Department of Pulmonary and Critical Care Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA
| | - Tonya C Walser
- Department of Pulmonary and Critical Care Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA
| | | | - Robert Shuman
- Memorial Care Health System, Long Beach, CA 90806, USA
| | - Julio Ibarra
- Memorial Care Health System, Long Beach, CA 90806, USA
| | - Deborah Fridman
- Hoag Memorial Hospital Presbyterian, Newport Beach, CA 92663, USA
| | - Michael E Phelps
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA; Crump Institute for Molecular Imaging, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA
| | - Karam Badran
- Department of Head and Neck Surgery, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA
| | - Maie St John
- Department of Head and Neck Surgery, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA
| | - Nicholas M Bernthal
- Department of Orthopedic Surgery, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA
| | - Noah Federman
- Jonsson Comprehensive Cancer Center, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA; Department of Pediatrics, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA
| | - Jane Yanagawa
- Department of Pulmonary and Critical Care Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA; Department of Thoracic Surgery, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA
| | - Steven M Dubinett
- Department of Pulmonary and Critical Care Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA; Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA; Jonsson Comprehensive Cancer Center, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA
| | - Saman Sadeghi
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA
| | - Heather R Christofk
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA; Jonsson Comprehensive Cancer Center, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA; UCLA Metabolomics Center, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA; Department of Biological Chemistry, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA
| | - David B Shackelford
- Department of Pulmonary and Critical Care Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA; Jonsson Comprehensive Cancer Center, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA.
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