1
|
Slysz J, Sinha A, DeBerge M, Singh S, Avgousti H, Lee I, Glinton K, Nagasaka R, Dalal P, Alexandria S, Wai CM, Tellez R, Vescovo M, Sunderraj A, Wang X, Schipma M, Sisk R, Gulati R, Vallejo J, Saigusa R, Lloyd-Jones DM, Lomasney J, Weinberg S, Ho K, Ley K, Giannarelli C, Thorp EB, Feinstein MJ. Single-cell profiling reveals inflammatory polarization of human carotid versus femoral plaque leukocytes. JCI Insight 2023; 8:e171359. [PMID: 37471165 PMCID: PMC10544225 DOI: 10.1172/jci.insight.171359] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [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: 04/11/2023] [Accepted: 07/17/2023] [Indexed: 07/22/2023] Open
Abstract
Femoral atherosclerotic plaques are less inflammatory than carotid plaques histologically, but limited cell-level data exist regarding comparative immune landscapes and polarization at these sites. We investigated intraplaque leukocyte phenotypes and transcriptional polarization in 49 patients undergoing femoral (n = 23) or carotid (n = 26) endarterectomy using single-cell RNA-Seq (scRNA-Seq; n = 13), flow cytometry (n = 24), and IHC (n = 12). Comparative scRNA-Seq of CD45+-selected leukocytes from femoral (n = 9; 35,265 cells) and carotid (n = 4; 30,655 cells) plaque revealed distinct transcriptional profiles. Inflammatory foam cell-like macrophages and monocytes comprised higher proportions of myeloid cells in carotid plaques, whereas noninflammatory foam cell-like macrophages and LYVE1-overexpressing macrophages comprised higher proportions of myeloid cells in femoral plaque (P < 0.001 for all). A significant comparative excess of CCR2+ macrophages in carotid versus plaque was observed by flow cytometry in a separate validation cohort. B cells were more prevalent and exhibited a comparatively antiinflammatory profile in femoral plaque, whereas cytotoxic CD8+ T cells were more prevalent in carotid plaque. In conclusion, human femoral plaques exhibit distinct macrophage phenotypic and transcriptional profiles as well as diminished CD8+ T cell populations compared with human carotid plaques.
Collapse
Affiliation(s)
| | - Arjun Sinha
- Division of Cardiology, Department of Medicine
| | | | | | | | - Inhyeok Lee
- Division of Cardiology, Department of Medicine
| | - Kristofor Glinton
- Division of Cardiology, Department of Medicine
- Department of Pathology, and
| | | | | | - Shaina Alexandria
- Department of Preventive Medicine at Northwestern University Feinberg School of Medicine (NUFSM), Chicago, Illinois, USA
| | - Ching Man Wai
- Northwestern University Sequencing Core, Chicago, Illinois, USA
| | - Ricardo Tellez
- Division of Cardiology, Department of Medicine
- Department of Pathology, and
| | | | | | - Xinkun Wang
- Northwestern University Sequencing Core, Chicago, Illinois, USA
| | - Matthew Schipma
- Northwestern University Sequencing Core, Chicago, Illinois, USA
| | - Ryan Sisk
- Division of Cardiology, Department of Medicine
| | - Rishab Gulati
- La Jolla Institute of Immunology, La Jolla, California, USA
| | | | | | - Donald M. Lloyd-Jones
- Division of Cardiology, Department of Medicine
- Department of Preventive Medicine at Northwestern University Feinberg School of Medicine (NUFSM), Chicago, Illinois, USA
| | | | | | - Karen Ho
- Division of Vascular Surgery, NUFSM, Chicago, Illinois, USA
| | - Klaus Ley
- Immunology Center of Georgia, Augusta, Georgia, USA
| | - Chiara Giannarelli
- Department of Medicine and
- Department of Pathology, New York University, New York, New York, USA
| | | | - Matthew J. Feinstein
- Division of Cardiology, Department of Medicine
- Department of Pathology, and
- Department of Preventive Medicine at Northwestern University Feinberg School of Medicine (NUFSM), Chicago, Illinois, USA
| |
Collapse
|
2
|
McDermott MM, Dayanidhi S, Kosmac K, Saini S, Slysz J, Leeuwenburgh C, Hartnell L, Sufit R, Ferrucci L. Walking Exercise Therapy Effects on Lower Extremity Skeletal Muscle in Peripheral Artery Disease. Circ Res 2021; 128:1851-1867. [PMID: 34110902 DOI: 10.1161/circresaha.121.318242] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [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] [Indexed: 12/20/2022]
Abstract
Walking exercise is the most effective noninvasive therapy that improves walking ability in peripheral artery disease (PAD). Biologic mechanisms by which exercise improves walking in PAD are unclear. This review summarizes evidence regarding effects of walking exercise on lower extremity skeletal muscle in PAD. In older people without PAD, aerobic exercise improves mitochondrial activity, muscle mass, capillary density, and insulin sensitivity in skeletal muscle. However, walking exercise increases lower extremity ischemia in people with PAD, and therefore, mechanisms by which this exercise improves walking may differ between people with and without PAD. Compared with people without PAD, gastrocnemius muscle in people with PAD has greater mitochondrial impairment, increased reactive oxygen species, and increased fibrosis. In multiple small trials, walking exercise therapy did not consistently improve mitochondrial activity in people with PAD. In one 12-week randomized trial of people with PAD randomized to supervised exercise or control, supervised treadmill exercise increased treadmill walking time from 9.3 to 15.1 minutes, but simultaneously increased the proportion of angular muscle fibers, consistent with muscle denervation (from 7.6% to 15.6%), while angular myofibers did not change in the control group (from 9.1% to 9.1%). These findings suggest an adaptive response to exercise in PAD that includes denervation and reinnervation, an adaptive process observed in skeletal muscle of people without PAD during aging. Small studies have not shown significant effects of exercise on increased capillary density in lower extremity skeletal muscle of participants with PAD, and there are no data showing that exercise improves microcirculatory delivery of oxygen and nutrients in patients with PAD. However, the effects of supervised exercise on increased plasma nitrite abundance after a treadmill walking test in people with PAD may be associated with improved lower extremity skeletal muscle perfusion and may contribute to improved walking performance in response to exercise in people with PAD. Randomized trials with serial, comprehensive measures of muscle biology, and physiology are needed to clarify mechanisms by which walking exercise interventions improve mobility in PAD.
Collapse
Affiliation(s)
- Mary M McDermott
- Department of Medicine and Preventive Medicine (M.M.M., J.S.), Northwestern University Feinberg School of Medicine
| | - Sudarshan Dayanidhi
- Shirley Ryan Ability Laboratory (S.D.), Northwestern University Feinberg School of Medicine
| | - Kate Kosmac
- Center for Muscle Biology, University of Kentucky (K.K.)
| | - Sunil Saini
- Jawaharlal Nehru University, School of Biotechnology, New Delhi, India (S.S.)
| | - Joshua Slysz
- Department of Medicine and Preventive Medicine (M.M.M., J.S.), Northwestern University Feinberg School of Medicine
| | | | - Lisa Hartnell
- Division of Intramural Research, National Institute on Aging (L.H., L.F.)
| | - Robert Sufit
- Department of Neurology (R.S.), Northwestern University Feinberg School of Medicine
| | - Luigi Ferrucci
- Division of Intramural Research, National Institute on Aging (L.H., L.F.)
| |
Collapse
|
3
|
Slysz J, Petrick H, Burr J. An Examination of Group and Individual Response Rates to Ischemic Preconditioning for Sport Performance. Med Sci Sports Exerc 2019. [DOI: 10.1249/01.mss.0000560900.06877.32] [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: 11/21/2022]
|
4
|
Slysz J, Jamnik VK, Gledhill N, Burr JF. Relationship of Physiological Fitness Tests and Early Career Hockey Success in Elite Ice Hockey Players. Med Sci Sports Exerc 2016. [DOI: 10.1249/01.mss.0000486179.48706.6b] [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: 11/21/2022]
|