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Jones R, Robinson AT, Beach LB, Lindsey ML, Kirabo A, Hinton A, Erlandson KM, Jenkins ND. Exercise to Prevent Accelerated Vascular Aging in People Living With HIV. Circ Res 2024; 134:1607-1635. [PMID: 38781293 PMCID: PMC11126195 DOI: 10.1161/circresaha.124.323975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Abstract
Given advances in antiretroviral therapy, the mortality rate for HIV infection has dropped considerably over recent decades. However, people living with HIV (PLWH) experience longer life spans coupled with persistent immune activation despite viral suppression and potential toxicity from long-term antiretroviral therapy use. Consequently, PLWH face a cardiovascular disease (CVD) risk more than twice that of the general population, making it the leading cause of death among this group. Here, we briefly review the epidemiology of CVD in PLWH highlighting disparities at the intersections of sex and gender, age, race/ethnicity, and the contributions of social determinants of health and psychosocial stress to increased CVD risk among individuals with marginalized identities. We then overview the pathophysiology of HIV and discuss the primary factors implicated as contributors to CVD risk among PLWH on antiretroviral therapy. Subsequently, we highlight the functional evidence of premature vascular dysfunction as an early pathophysiological determinant of CVD risk among PLWH, discuss several mechanisms underlying premature vascular dysfunction in PLWH, and synthesize current research on the pathophysiological mechanisms underlying accelerated vascular aging in PLWH, focusing on immune activation, chronic inflammation, and oxidative stress. We consider understudied aspects such as HIV-related changes to the gut microbiome and psychosocial stress, which may serve as mechanisms through which exercise can abrogate accelerated vascular aging. Emphasizing the significance of exercise, we review various modalities and their impacts on vascular health, proposing a holistic approach to managing CVD risks in PLWH. The discussion extends to critical future study areas related to vascular aging, CVD, and the efficacy of exercise interventions, with a call for more inclusive research that considers the diversity of the PLWH population.
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Affiliation(s)
- Raymond Jones
- Heersink School of Medicine, University of Alabama at Birmingham, Birmingham, AL
| | | | - Lauren B. Beach
- Department of Medical Social Sciences, Northwestern, Chicago, IL
- Department of Preventive Medicine, Northwestern, Chicago, IL
| | - Merry L. Lindsey
- School of Graduate Studies, Meharry Medical College, Nashville, TN
- Research Service, Nashville VA Medical Center, Nashville, TN
| | - Annet Kirabo
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
- Vanderbilt Center for Immunobiology, Nashville, TN
- Vanderbilt Institute for Infection, Immunology and Inflammation, Nashville, TN
- Vanderbilt Institute for Global Health, Nashville, TN
| | - Antentor Hinton
- Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, TN
| | | | - Nathaniel D.M. Jenkins
- Department of Health and Human Physiology, University of Iowa, Iowa City, IA
- Abboud Cardiovascular Research Center, University of Iowa, Iowa City, IA
- Fraternal Order of Eagles Diabetes Research Center, University of Iowa, Iowa City, IA
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Jung JM, Gruber A, Heseltine P, Rajamani K, Ameriso SF, Fisher MJ. New Directions in Infection-Associated Ischemic Stroke. J Clin Neurol 2024; 20:140-152. [PMID: 38330416 PMCID: PMC10921058 DOI: 10.3988/jcn.2023.0056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 09/06/2023] [Accepted: 11/12/2023] [Indexed: 02/10/2024] Open
Abstract
The relationship between infections and stroke has not been fully characterized, probably delaying the development of specific treatments. This narrative review addresses mechanisms of stroke linked to infections, including hypercoagulability, endothelial dysfunction, vasculitis, and impaired thrombolysis. SARS-CoV-2, the virus that causes COVID-19, may promote the development of stroke, which may represent its most severe neurological complication. The development of specific therapies for infection-associated stroke remains a profound challenge. Perhaps the most important remaining issue is the distinction between infections that trigger a stroke versus infections that are truly incidental. This distinction likely requires the establishment of appropriate biomarkers, candidates of which are elevated levels of fibrin D-dimer and anticardiolipin/antiphospholipid antibodies. These candidate biomarkers might have potential use in identifying pathogenic infections preceding stroke, which is a precursor to establishing specific therapies for this syndrome.
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Affiliation(s)
- Jin-Man Jung
- Department of Neurology, Korea University Ansan Hospital, Korea University College of Medicine, Ansan, Korea; Korea University Zebrafish, Translational Medical Research Center, Ansan, Korea
| | | | - Peter Heseltine
- Division of Infectious Diseases, Department of Medicine, University of California, Irvine, Irvine, CA, USA
| | - Kumar Rajamani
- Department of Neurology, Wayne State University-Detroit Medical Center, Detroit, MI, USA
| | - Sebastián F Ameriso
- Division of Vascular Neurology, Department of Neurology, Fleni, Autonomous City of Buenos Aires, Argentina
| | - Mark J Fisher
- Department of Neurology, University of California Irvine Medical Center, Orange, CA, USA.
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Ntsekhe M, Baker JV. Cardiovascular Disease Among Persons Living With HIV: New Insights Into Pathogenesis and Clinical Manifestations in a Global Context. Circulation 2023; 147:83-100. [PMID: 36576956 DOI: 10.1161/circulationaha.122.057443] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Widespread use of contemporary antiretroviral therapy globally has transformed HIV disease into a chronic illness associated with excess risk for disorders of the heart and circulatory system. Current clinical care and research has focused on improving HIV-related cardiovascular disease outcomes, survival, and quality of life. In high-income countries, emphasis on prevention of atherosclerotic coronary artery disease over the past decade, including aggressive management of traditional risk factors and earlier initiation of antiretroviral therapy, has reduced risk for myocardial infarction among persons living with human immunodeficiency virus-1 infection. Still, across the globe, persons living with human immunodeficiency virus-1 infection on effective antiretroviral therapy treatment remain at increased risk for ischemic outcomes such as myocardial infarction and stroke relative to the persons without HIV. Unique features of HIV-related cardiovascular disease, in part, include the pathogenesis of coronary disease characterized by remodeling ectasia and unusual plaque morphology, the relative high proportion of type 2 myocardial infarction events, abnormalities of the aorta such as aneurysms and diffuse aortic inflammation, and HIV cerebrovasculopathy as a contributor to stroke risk. Literature over the past decade has also reflected a shift in the profile and prevalence of HIV-associated heart failure, with a reduced but persistent risk of heart failure with reduced ejection fraction and a growing risk of heart failure with preserved ejection fraction. Cardiac magnetic resonance imaging and autopsy data have emphasized the central importance of intramyocardial fibrosis for the pathogenesis of both heart failure with preserved ejection fraction and the increase in risk of sudden cardiac death. Still, more research is needed to better characterize the underlying mechanisms and clinical phenotype of HIV-associated myocardial disease in the current era. Across the different cardiovascular disease manifestations, a common pathogenic feature is that HIV-associated inflammation working through different mechanisms may amplify underlying pathology because of traditional risk and other host factors. The prevalence and phenotype of individual cardiovascular disease manifestations is ultimately influenced by the degree of injury from HIV disease combined with the profile of underlying cardiometabolic factors, both of which may differ substantially by region globally.
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Affiliation(s)
- Mpiko Ntsekhe
- Division of Cardiology, Institute of Infectious Diseases and Molecular Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa (M.N.)
| | - Jason V Baker
- Division of Infectious Diseases, Hennepin Healthcare Research Institute, Minneapolis, MN (J.V.B.).,Department of Medicine, University of Minnesota, Minneapolis (J.V.B.)
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Matsubara Y, Ota Y, Tanaka Y, Denda T, Hijikata Y, Boku N, Lim LA, Hirata Y, Tsurita G, Adachi E, Yotsuyanagi H. Altered mucosal immunity in HIV-positive colon adenoma: decreased CD4 + T cell infiltration is correlated with nadir but not current CD4 + T cell blood counts. Int J Clin Oncol 2022; 27:1321-1330. [PMID: 35643870 DOI: 10.1007/s10147-022-02188-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 05/06/2022] [Indexed: 11/05/2022]
Abstract
BACKGROUND People living with HIV (PLWH) face greater risks of developing non-AIDS-defining cancers (NADCs) than the general population; however, the underlying mechanisms remain elusive. The tumor microenvironment plays a significant role in the carcinogenesis of colorectal cancer (CRC), an NADC. We studied this carcinogenesis in PLWH by determining inflammatory phenotypes and assessing PD-1/PD-L1 expression in premalignant CRC stages of colon adenomas in HIV-positive and HIV-negative patients. METHODS We obtained polyp specimens from 22 HIV-positive and 61 HIV-negative participants treated with colonoscopy and polyp excision. We analyzed adenomas from 33 HIV-positive and 99 HIV-negative patients by immunohistochemistry using anti-CD4, anti-CD8, anti-FoxP3, and anti-CD163 antibodies. Additionally, we analyzed the expression levels of immune checkpoint proteins. We also evaluated the correlation between cell infiltration and blood cell counts. RESULTS HIV-positive participants had fewer infiltrating CD4+ T cells than HIV-negative participants (p = 0.0016). However, no statistical differences were observed in infiltrating CD8+ and FoxP3+ T cells and CD163+ macrophages. Moreover, epithelial cells did not express PD-1 or PD-L1. Notably, CD4+ T cell infiltration correlated with nadir blood CD4+ T cell counts (p < 0.05) but not with current blood CD4+ T cell counts. CONCLUSION Immune surveillance dysfunction owing to decreased CD4+ T cell infiltration in colon adenomas might be involved in colon carcinogenesis in HIV-positive individuals. Collectively, since the nadir blood CD4+ T cell count is strongly correlated with CD4+ T cell infiltration, it could facilitate efficient follow-up and enable treatment strategies for HIV-positive patients with colon adenomas.
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Affiliation(s)
- Yasuo Matsubara
- Department of Oncology and General Medicine, IMSUT Hospital, Institute of Medical Science, The University of Tokyo, 4-6-1 Shirokanedai, Minato-ku, Tokyo, 108-8639, Japan.
| | - Yasunori Ota
- Department of Diagnostic Pathology, IMSUT Hospital, Institute of Medical Science, The University of Tokyo, 4-6-1 Shirokanedai, Minato-ku, Tokyo, 108-8639, Japan
| | - Yukihisa Tanaka
- Department of Diagnostic Pathology, IMSUT Hospital, Institute of Medical Science, The University of Tokyo, 4-6-1 Shirokanedai, Minato-ku, Tokyo, 108-8639, Japan
| | - Tamami Denda
- Department of Diagnostic Pathology, IMSUT Hospital, Institute of Medical Science, The University of Tokyo, 4-6-1 Shirokanedai, Minato-ku, Tokyo, 108-8639, Japan
| | - Yasuki Hijikata
- Department of Palliative Medicine/Advanced Clinical Oncology, IMSUT Hospital, Institute of Medical Science, The University of Tokyo, 4-6-1 Shirokanedai, Minato-ku, Tokyo, 108-8639, Japan
| | - Narikazu Boku
- Department of Oncology and General Medicine, IMSUT Hospital, Institute of Medical Science, The University of Tokyo, 4-6-1 Shirokanedai, Minato-ku, Tokyo, 108-8639, Japan
| | - Lay Ahyoung Lim
- Department of Research, Kitasato Institute Hospital, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8642, Japan
| | - Yoshihiro Hirata
- Department of Oncology and General Medicine, IMSUT Hospital, Institute of Medical Science, The University of Tokyo, 4-6-1 Shirokanedai, Minato-ku, Tokyo, 108-8639, Japan
| | - Giichiro Tsurita
- Department of Surgery, IMSUT Hospital, The Institute of Medical Science, The University of Tokyo, 4-6-1 Shirokanedai, Minato-ku, Tokyo, 108-8639, Japan
| | - Eisuke Adachi
- Department of Infectious Diseases and Applied Immunology, IMSUT Hospital of the Institute of Medical Science, The University of Tokyo, 4-6-1 Shirokanedai, Minato-ku, Tokyo, 108-8639, Japan
| | - Hiroshi Yotsuyanagi
- Department of Infectious Diseases and Applied Immunology, IMSUT Hospital of the Institute of Medical Science, The University of Tokyo, 4-6-1 Shirokanedai, Minato-ku, Tokyo, 108-8639, Japan
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