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Liu YC, Chuang SH, Chen YP, Shih YH. Associations of novel complete blood count-derived inflammatory markers with psoriasis: a systematic review and meta-analysis. Arch Dermatol Res 2024; 316:228. [PMID: 38787437 DOI: 10.1007/s00403-024-02994-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Revised: 04/15/2024] [Accepted: 04/26/2024] [Indexed: 05/25/2024]
Abstract
Psoriasis is an immune-mediated disorder which primarily affects skin and has systemic inflammatory involvement. Neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR), systemic immune-inflammation index (SII), and monocyte-to-lymphocyte ratio (MLR) are novel complete blood count (CBC)-derived markers which can reflect systemic inflammation. This study aimed to systematically investigate the associations of NLR, PLR, SII, and MLR with psoriasis. This study was performed in compliance with the Preferred Reporting Items for Systematic Reviews and Meta-analyses statement. A comprehensive search of Pubmed, Embase, Scopus, and Google Scholar was conducted for relevant studies. Observational studies evaluating the correlations of NLR, PLR, SII, or MLR with psoriasis were included. The primary outcomes were the associations of these inflammatory markers with the presence and severity of psoriasis. The random-effect model was applied for meta-analysis. 36 studies comprising 4794 psoriasis patients and 55,121 individuals in total were included in the meta-analysis. All inflammatory markers were significantly increased in psoriasis groups compared to healthy controls (NLR: MD = 0.59, 95% CI: 0.47-0.7; PLR: MD = 15.53, 95% CI: 8.48-22.58; SII: MD = 111.58, 95% CI: 61.49-161.68; MLR: MD = 0.034, 95% CI: 0.021-0.048; all p < 0.001). Between-group mean differences in NLR and PLR were positively correlated with the mean scores of Psoriasis Area Severity Index (NLR: p = 0.041; PLR: p = 0.021). NLR, PLR, SII, and MLR are associated with the presence of psoriasis. NLR and PLR serve as significant indicators of psoriasis severity. These novel CBC-derived markers constitute potential targets in the screening and monitoring of psoriasis.
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Affiliation(s)
- Yu-Cheng Liu
- Department of General Medicine, Taipei Medical University Shuang Ho Hospital, New Taipei, 23561, Taiwan
| | - Shu-Han Chuang
- Division of General Practice, Department of Medical Education, Changhua Christian Hospital, Changhua, 50006, Taiwan
| | - Yu-Pin Chen
- Department of Orthopedics, Taipei Municipal Wan Fang Hospital, Taipei, 11696, Taiwan
- Department of Orthopedics, School of Medicine, College of Medicine, Taipei Medical University, Taipei, 11031, Taiwan
| | - Yi-Hsien Shih
- Department of Dermatology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, 11031, Taiwan.
- Department of Dermatology, Taipei Medical University Shuang Ho Hospital, New Taipei City, 23561, Taiwan.
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Zhao X, Li J, Li X. Association between systemic immune-inflammation index and psoriasis: a population-based study. Front Immunol 2024; 15:1305701. [PMID: 38504983 PMCID: PMC10948528 DOI: 10.3389/fimmu.2024.1305701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Accepted: 02/21/2024] [Indexed: 03/21/2024] Open
Abstract
Background The systemic immune-inflammation index (SII),as measured by lymphocyte, neutrophil and platelet counts in peripheral blood, is regarded as a favorable indicator of both inflammatory state and immune response. Psoriasis is an immune-mediated disease notable for its chronic inflammation of the entire system. Our research sought to explore the latent link between psoriasis and SII. Methods We performed a cross-sectional investigation utilizing data extracted from the National Health and Nutrition Examination Survey (NHANES, 2009-2014). Employing multivariate linear regression models and subgroup analysis, we sought to uncover the association between SII and psoriasis. Results This study enrolled a total of 17,913 participants as part of its research cohort. Our multivariate linear regression analysis revealed a notable and positive correlation between SII and psoriasis [1.013 (1.000, 1.026)]. As SII tertiles increased, the risk of psoriasis demonstrated an upward trend. The significant dependence on this positive association were maintained in women, BMI(≥ 30 kg/m2),non-stroke and non-cancer subjects in subgroup analysis and interaction tests. Furthermore, we identified a significant association between SII and psoriasis, characterized by two consecutive inverted U-shaped patterns. Notably, the analysis revealed the most prominent inflection point at a specific value of 797.067. Conclusions The results indicate a significant correlation between elevated SII levels and the presence of psoriasis. However, to corroborate and strengthen these results, additional large-scale prospective studies are required.
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Affiliation(s)
- Xiya Zhao
- Ninth Clinical College of Medicine, Shanxi Medical University, Taiyuan, China
- Department of Dermatology, Taiyuan Central Hospital, Shanxi Medical University, Taiyuan, China
- Key Laboratory of Stem Cells for Immunologic Skin Diseases, Taiyuan Central Hospital, Taiyuan, China
| | - Junqin Li
- Department of Dermatology, Taiyuan Central Hospital, Shanxi Medical University, Taiyuan, China
- Key Laboratory of Stem Cells for Immunologic Skin Diseases, Taiyuan Central Hospital, Taiyuan, China
| | - Xinhua Li
- Department of Dermatology, Taiyuan Central Hospital, Shanxi Medical University, Taiyuan, China
- Key Laboratory of Stem Cells for Immunologic Skin Diseases, Taiyuan Central Hospital, Taiyuan, China
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Kommoss KS, Bieler T, Ringen J, Lehmann A, Mihalceanu S, Hobohm L, Keller K, Brand A, Fischer B, Kramer D, Wild J, Waisman A, Enk A, Schäkel K, Heikenwälder M, Karbach S. A simple tool for evaluation of inflammation in psoriasis: Neutrophil-to-lymphocyte and platelet-to-lymphocyte ratio as markers in psoriasis patients and related murine models of psoriasis-like skin disease. J Mol Med (Berl) 2024; 102:247-255. [PMID: 38127137 PMCID: PMC10857970 DOI: 10.1007/s00109-023-02406-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 11/04/2023] [Accepted: 11/23/2023] [Indexed: 12/23/2023]
Abstract
Objective parameters to quantify psoriatic inflammation are needed for interdisciplinary patient care, as well as preclinical experimental models. This study evaluates neutrophil-to-lymphocyte ratio (NLR) and platelet-to-lymphocyte ratio (PLR) in psoriasis patients and five murine models of psoriasis-like skin disease based on topical imiquimod application and overexpression of IL-17A under different promotors. We performed a single-center prospective observational study in a German population, investigating psoriasis patients prior to, 4 weeks, and 16 weeks post begin of systemic anti-inflammatory therapy. Psoriasis area and severity index (PASI), blood count, and C-reactive protein (CRP) levels were attained at each timepoint. Additionally, five murine models of psoriasis-like skin disease involving five distinct experimental procedures differing in time of disease-onset and severity were investigated regarding PLR and NLR. Of 43 recruited psoriasis patients, 34 patients were followed up to 16 weeks. The cohort was 69.77% male, showing a median age of 32.0 years (range 19.0-67.0; IQR 26). The median PASI decreased from 16.35 (8.0-50.0; 10.20) to 1.6 (0-10.3; 2.56) after 16 weeks of systemic therapy. Spearman's correlation showed statistically significant positive correlation for NLR with PASI (rs = 0.27, p = 0.006), however not for PLR. NLR, but not PLR, was significantly associated with PASI in a multiple linear regression analysis including age, sex, psoriasis arthritis, and smoking. In the murine models of psoriasis-like skin disease, both NLR and PLR were significantly increased in the acute-severe models compared to controls (p < 0.001, p = 0.005, and p = 0.02, respectively), demonstrating gradually less increased values from severe-acute to mild-late-onset psoriatic phenotype. NLR was significantly associated with PASI in psoriatic patients as well as psoriatic phenotype in different murine psoriasis models. Our data warrants investigation of NLR in psoriasis patients and preclinical psoriasis models as an objective biomarker of psoriatic skin inflammation. KEY MESSAGES : NLR, but not PLR, showed a statistically significant positive correlation with Psoriasis Area and Severity Index (PASI) in our human psoriasis cohort. Both NLR and PLR were significantly increased in murine psoriasis models compared to matched controls, with gradually less increased values from severe-acute to mild-late-onset psoriatic phenotype. NLR may represent an easily available, cheap, and objective parameter to monitor psoriatic inflammation in both clinical patient routine, as well as preclinical experimental murine models.
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Affiliation(s)
- Katharina S Kommoss
- Department of Dermatology, University Hospital Heidelberg, Heidelberg, Germany.
- Division of Chronic Inflammation and Cancer, German Cancer Research Center (DKFZ), Heidelberg, Germany.
| | - Tabea Bieler
- Division of Chronic Inflammation and Cancer, German Cancer Research Center (DKFZ), Heidelberg, Germany
- Interdisciplinary Center for Scientific Computing (IWR), Heidelberg University, Heidelberg, Germany
| | - Julia Ringen
- Center for Thrombosis and Hemostasis, University Medical Center Mainz, Mainz, Germany
| | - Annika Lehmann
- Center for Thrombosis and Hemostasis, University Medical Center Mainz, Mainz, Germany
| | - Silvia Mihalceanu
- Department of Dermatology, University Hospital Heidelberg, Heidelberg, Germany
| | - Lukas Hobohm
- Center for Thrombosis and Hemostasis, University Medical Center Mainz, Mainz, Germany
- Center for Cardiology-Cardiology I, University Medical Center Mainz, Mainz, Germany
| | - Karsten Keller
- Center for Thrombosis and Hemostasis, University Medical Center Mainz, Mainz, Germany
- Center for Cardiology-Cardiology I, University Medical Center Mainz, Mainz, Germany
- Department of Sports Medicine, Medical Clinic VII, University Hospital Heidelberg, Heidelberg, Germany
| | - Anna Brand
- Institute of Molecular Medicine, University Medical Center Mainz, Mainz, Germany
| | - Berenice Fischer
- Department of Dermatology, University Medical Center of the Johannes Gutenberg-University of Mainz, Mainz, Germany
| | - Daniela Kramer
- Department of Dermatology, University Medical Center of the Johannes Gutenberg-University of Mainz, Mainz, Germany
| | - Johannes Wild
- Center for Thrombosis and Hemostasis, University Medical Center Mainz, Mainz, Germany
- Center for Cardiology-Cardiology I, University Medical Center Mainz, Mainz, Germany
- German Center for Cardiovascular Research (DZHK)-Partner Site RheinMain (Mainz), Mainz, Germany
| | - Ari Waisman
- Institute of Molecular Medicine, University Medical Center Mainz, Mainz, Germany
| | - Alexander Enk
- Department of Dermatology, University Hospital Heidelberg, Heidelberg, Germany
| | - Knut Schäkel
- Department of Dermatology, University Hospital Heidelberg, Heidelberg, Germany
| | - Mathias Heikenwälder
- Division of Chronic Inflammation and Cancer, German Cancer Research Center (DKFZ), Heidelberg, Germany
- The M3 Research Center, Institute for Interdisciplinary Research On Cancer Metabolism and Chronic Inflammation, Medical Faculty, Eberhard Karls University Tübingen, Tübingen, Germany
| | - Susanne Karbach
- Center for Thrombosis and Hemostasis, University Medical Center Mainz, Mainz, Germany
- Center for Cardiology-Cardiology I, University Medical Center Mainz, Mainz, Germany
- German Center for Cardiovascular Research (DZHK)-Partner Site RheinMain (Mainz), Mainz, Germany
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Margouta A, Anyfanti P, Lazaridis A, Gavriilaki E, Yiannaki E, Nikolaidou B, Goulas K, Lazaridou E, Triantafyllou A, Douma S, Patsatsi A, Gkaliagkousi E. Assessment of microvesicles from different cell origins in patients with psoriasis: evidence of thrombogenic, proinflammatory microenvironment in the absence of established cardiovascular disease. J Hum Hypertens 2023; 37:925-930. [PMID: 36482197 DOI: 10.1038/s41371-022-00787-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 11/13/2022] [Accepted: 11/25/2022] [Indexed: 12/13/2022]
Abstract
Psoriasis is associated with increased cardiovascular risk. Endothelial, platelet, and erythrocyte microvesicles (MVs) are novel biomarkers of endothelial dysfunction and thromboinflammation. We explored whether MVs of different cell types are elevated in patients with psoriasis, and investigated potential associations with disease severity and macrovascular function. Endothelial, platelet and erythrocyte MVs were measured using a standardized flow cytometry protocol in psoriasis patients and controls free from established cardiovascular disease. Carotid intima-media thickness (IMT) and pulse wave velocity (PWV) were measured as markers of subclinical atherosclerosis and arterial stiffness. Psoriasis severity was assessed with PASI (Psoriasis Area Severity Index). Both platelet (p < 0.001) and erythrocyte MVs (p = 0.046), yet not endothelial MVs, were significantly increased in patients with psoriasis (n = 41) compared with controls (n = 41). Patients with higher PASI (≥10) presented significantly higher levels of ErMVs compared to those with lower PASI (<10) (p = 0.047). Carotid IMT and PWV were comparable between psoriasis patients and controls and did not significantly correlate with MVs. In the multivariate analysis, psoriasis was identified as an independent predictor of both platelet (p < 0.001) and erythrocyte MVs (p = 0.043), while hypertension was independently associated with endothelial MVs (p < 0.001). Increased formation of platelet and erythrocyte MVs may be evident in psoriasis patients and is indicative of prothrombotic, proinflammatory microenvironment, even in the absence of subclinical macrovascular dysfunction and before the clinical onset of overt cardiovascular complications. Potential mechanistic links and prognostic implications of increased MVs in psoriasis warrant further investigation.
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Affiliation(s)
- Anastasia Margouta
- 3rd Department of Internal Medicine, Papageorgiou Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Panagiota Anyfanti
- 3rd Department of Internal Medicine, Papageorgiou Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece.
| | - Antonios Lazaridis
- 3rd Department of Internal Medicine, Papageorgiou Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Eleni Gavriilaki
- 3rd Department of Internal Medicine, Papageorgiou Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Efthalia Yiannaki
- Department of Hematology, Theagenion Cancer Center, Thessaloniki, Greece
| | - Barbara Nikolaidou
- 3rd Department of Internal Medicine, Papageorgiou Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Kyriakos Goulas
- 3rd Department of Internal Medicine, Papageorgiou Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Elizabeth Lazaridou
- 2nd Department of Dermatology and Venereology, General Hospital "Papageorgiou", Medical School Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Areti Triantafyllou
- 3rd Department of Internal Medicine, Papageorgiou Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Stella Douma
- 3rd Department of Internal Medicine, Papageorgiou Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Aikaterini Patsatsi
- 2nd Department of Dermatology and Venereology, General Hospital "Papageorgiou", Medical School Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Eugenia Gkaliagkousi
- 3rd Department of Internal Medicine, Papageorgiou Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
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Ravera S, Signorello MG, Panfoli I. Platelet Metabolic Flexibility: A Matter of Substrate and Location. Cells 2023; 12:1802. [PMID: 37443836 PMCID: PMC10340290 DOI: 10.3390/cells12131802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 07/04/2023] [Accepted: 07/05/2023] [Indexed: 07/15/2023] Open
Abstract
Platelets are cellular elements that are physiologically involved in hemostasis, inflammation, thrombotic events, and various human diseases. There is a link between the activation of platelets and their metabolism. Platelets possess considerable metabolic versatility. Although the role of platelets in hemostasis and inflammation is known, our current understanding of platelet metabolism in terms of substrate preference is limited. Platelet activation triggers an oxidative metabolism increase to sustain energy requirements better than aerobic glycolysis alone. In addition, platelets possess extra-mitochondrial oxidative phosphorylation, which could be one of the sources of chemical energy required for platelet activation. This review aims to provide an overview of flexible platelet metabolism, focusing on the role of metabolic compartmentalization in substrate preference, since the metabolic flexibility of stimulated platelets could depend on subcellular localization and functional timing. Thus, developing a detailed understanding of the link between platelet activation and metabolic changes is crucial for improving human health.
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Affiliation(s)
- Silvia Ravera
- Department of Experimental Medicine, University of Genoa, 16132 Genoa, Italy;
| | | | - Isabella Panfoli
- Department of Pharmacy (DIFAR), University of Genoa, 16132 Genoa, Italy;
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Kommoss KS, Enk A, Heikenwälder M, Waisman A, Karbach S, Wild J. Cardiovascular comorbidity in psoriasis - psoriatic inflammation is more than just skin deep. J Dtsch Dermatol Ges 2023. [PMID: 37186503 DOI: 10.1111/ddg.15071] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Accepted: 02/24/2023] [Indexed: 05/17/2023]
Abstract
BACKGROUND There is a growing understanding of inflammation in psoriasis beyond its dermatological manifestation, towards systemic inflammation. Management of possible comorbidities encompassing psychological, metabolic and cardiovascular disease is recommended in national and international dermatology guidelines for treatment of psoriasis patients. Vice versa, psoriasis is being recognized as a new risk factor for cardiovascular inflammation within the cardiological community. METHODS A review of the literature was conducted. Key points regarding epidemiological, mechanistic and management aspects were summarized and put into context for physicians treating psoriasis patients. RESULTS Efforts are currently being made to better understand the mechanistic underpinnings of systemic inflammation within psoriatic inflammation. Studies looking to "hit two birds with one stone" regarding specifically cardiovascular comorbidities of psoriasis patients using established systemic dermatological therapies have so far provided heterogeneous data. The diagnosis of psoriasis entails preventive and therapeutic consequences regarding concomitant diseases for the individual patient. CONCLUSIONS The knowledge of comorbidities in psoriasis calls for pronounced interdisciplinary care of psoriasis patients, to which this article highlights efforts regarding vascular inflammation and cardiovascular disease.
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Affiliation(s)
- Katharina S Kommoss
- Department of Dermatology, University Hospital Heidelberg, Heidelberg, Germany
- Division of Chronic Inflammation and Cancer, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Alexander Enk
- Department of Dermatology, University Hospital Heidelberg, Heidelberg, Germany
| | - Mathias Heikenwälder
- Division of Chronic Inflammation and Cancer, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Ari Waisman
- Institute for Molecular Medicine, University Medical Center of Mainz, Mainz, Germany
- Research Center for Immunotherapy, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Susanne Karbach
- Center for Cardiology - Cardiology I, University Medical Center Mainz, Mainz, Germany
- Center for Thrombosis and Hemostasis, University Medical Center Mainz, Mainz, Germany
- German Center for Cardiovascular Research (DZHK) - Partner site RheinMain, Germany
| | - Johannes Wild
- Center for Cardiology - Cardiology I, University Medical Center Mainz, Mainz, Germany
- Center for Thrombosis and Hemostasis, University Medical Center Mainz, Mainz, Germany
- German Center for Cardiovascular Research (DZHK) - Partner site RheinMain, Germany
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The Growth Factor Release from a Platelet-Rich Plasma Preparation Is Influenced by the Onset of Guttate Psoriasis: A Case Report. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12147250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The involvement of platelets in immune and inflammatory processes is generally recognized; nevertheless, in psoriasis, their role is not clearly understood. We studied the in vitro growth factor release from a platelet-rich plasma preparation, the concentrated growth factors (CGF), in a case of a psoriasis subject three days before the onset of the papule. The CGF clots were incubated in a cell culture medium without growth supplements for 5 h and 1, 3, 6, 7, and 8 days, and the release kinetics of PDGF-AB, VEGF, TNF-α, and TGF-β1 were evaluated. The data, based on the results obtained during the case study, report a general increase in growth factor release in the psoriasis subject with respect to the healthy control, indicating an imbalance of growth factor production from blood cells. Although the results should be validated in the future, they show new aspects of this dermatological pathology, opening new possibilities both as the method of study, using CGF, and the involvement of platelets and growth factors in its development and maintenance.
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Eder L, Li Q, Rahmati S, Rahman P, Jurisica I, Chandran V. Defining imaging sub-phenotypes of psoriatic arthritis: integrative analysis of imaging data and gene expression in a PsA patient cohort. Rheumatology (Oxford) 2022; 61:4952-4961. [PMID: 35157043 PMCID: PMC9707284 DOI: 10.1093/rheumatology/keac078] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 01/07/2022] [Indexed: 01/11/2023] Open
Abstract
OBJECTIVES To define imaging sub-phenotypes in patients with PsA; determine their association with whole blood gene expression and identify biological pathways characterizing the sub-phenotypes. METHODS Fifty-five patients with PsA ready to initiate treatment for active disease were prospectively recruited. We performed musculoskeletal ultrasound assessment of the extent of inflammation in the following domains: synovitis, peritenonitis, tenosynovitis and enthesitis. Peripheral whole blood was profiled with RNAseq, and gene expression data were obtained. First, unsupervised cluster analysis was performed to define imaging sub-phenotypes that reflected the predominant tissue involved. Subsequently, principal component analysis was used to determine the association between imaging-defined sub-phenotypes and peripheral blood gene expression profile. Pathway enrichment analysis was performed to identify underlying mechanisms that characterize individual sub-phenotypes. RESULTS Cluster analysis revealed three imaging sub-phenotypes: (i) synovitis predominant [n = 31 (56%)]; (ii) enthesitis predominant [n = 13 (24%)]; (iii) peritenonitis predominant [n = 11 (20%)]. The peritenonitis-predominant sub-phenotype had the most severe clinical joint involvement, whereas the enthesitis-predominant sub-phenotype had the highest tender entheseal count. Unsupervised clustering of gene expression data identified three sub-phenotypes that partially overlapped with the imaging sub-phenotypes suggesting biological and clinical relevance of these sub-phenotypes. We therefore characterized enriched differential pathways, which included: immune system (innate system, B cells and neutrophil degranulation), complement system, platelet activation and coagulation function. CONCLUSIONS We identified three sub-phenotypes based on the predominant tissue involved in patients with active PsA. Distinct biological pathways may underlie these imaging sub-phenotypes seen in PsA, suggesting their biological and clinical importance.
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Affiliation(s)
- Lihi Eder
- Correspondence to: Lihi Eder, Women’s College Research Institute, Room 6326, Women’s College Hospital, 76 Grenville Street, Toronto, Ontario M5S 1B2, Canada. E-mail:
| | - Quan Li
- Princess Margaret Cancer Centre, University Health Network, University of Toronto
| | - Sara Rahmati
- Schroeder Arthritis Institute, Krembil Research Institute, University Health Network, Toronto, ON
| | - Proton Rahman
- Rheumatology Division, Department of Medicine, Memorial University, St. John’s, NL
| | - Igor Jurisica
- Schroeder Arthritis Institute, Krembil Research Institute, University Health Network, Toronto, ON,Departments of Medical Biophysics and Computer Science, Faculty of Dentistry University of Toronto, ON, Canada,Institute of Neuroimmunology, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Vinod Chandran
- Rheumatology Division, Department of Medicine,Institute of Medical Science,Schroeder Arthritis Institute, Krembil Research Institute, University Health Network, Toronto, ON,Rheumatology Division, Department of Medicine, Memorial University, St. John’s, NL,Department of Laboratory Medicine and Pathobiology, University of Toronto, ON, Canada
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