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Mavileti SK, Bila G, Utka V, Bilyy R, Bila E, Butoi E, Gupta S, Balyan P, Kato T, Bilyy R, Pandey SS. Squaraine-Peptide Conjugates as Efficient Reporters of Neutrophil Extracellular Traps-Mediated Chronic Inflammation. ACS APPLIED MATERIALS & INTERFACES 2025; 17:9140-9154. [PMID: 39898628 PMCID: PMC11826884 DOI: 10.1021/acsami.4c20658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2024] [Revised: 01/17/2025] [Accepted: 01/24/2025] [Indexed: 02/04/2025]
Abstract
The excessive and uncontrolled release of neutrophil extracellular traps (NETs) is increasingly linked to the pathogenesis of various inflammatory diseases, cardiovascular disorders, and cancers. Real-time, non-invasive detection of NETs is crucial for understanding their role in disease progression and developing targeted therapies. Current NETs detection methods often lack the necessary specificity and resolution, particularly in vivo and ex vivo settings. To address this, we have developed novel near-infrared squaraine-peptide conjugates by rational molecular design as reporters of NETosis by targeting the protease activity of neutrophil elastase (NE). These self-quenching, cell-impermeable probes enable the precise real-time detection and imaging of NETs. The Förster resonance energy transfer (FRET)-based probe, Hetero-APA, demonstrated high specificity in detecting NETs in vitro and in vivo, generating strong fluorescence in NETs-rich environments. To overcome the limitations of FRET-based probes for ex vivo imaging, we designed SQ-215-NETP, a non-FRET-based probe that covalently binds to the NE. SQ-215-NETP achieved an unprecedented imaging resolution of 90 nm/pixel in human coronary thrombi, marking the first report of such high resolution with a low molecular weight probe. Additionally, SQ-215-NETP effectively detected NETs by flow cytometry. These results highlight the potential of these probes in NETosis detection, offering promising tools for enhanced diagnostics and therapeutic strategies in managing NET-mediated inflammatory diseases and cancers.
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Affiliation(s)
- Sai Kiran Mavileti
- Graduate
School of Life Science and System Engineering, Kyushu Institute of Technology, 2-4, Hibikino, Wakamatsu, 808-0196 Kitakyushu, Japan
| | - Galyna Bila
- Lectinotest
R&D, Mechanichna
Str 2, 79000 Lviv, Ukraine
- Department
of Histology, Cytology & Embryology, Danylo Halytsky Lviv National Medical University, Pekarska Str. 69, 79010 Lviv, Ukraine
- Institute
of Cellular Biology and Pathology “Nicolae Simionescu”, 050568 Bucharest, Romania
| | - Valentyn Utka
- Lectinotest
R&D, Mechanichna
Str 2, 79000 Lviv, Ukraine
| | | | - Evgenia Bila
- Lectinotest
R&D, Mechanichna
Str 2, 79000 Lviv, Ukraine
- Department
of Organic Chemistry, Ivan Franko National
University of Lviv, Kyrylo
and Mefodiy Street 6, 79005 Lviv, Ukraine
| | - Elena Butoi
- Institute
of Cellular Biology and Pathology “Nicolae Simionescu”, 050568 Bucharest, Romania
| | - Shekhar Gupta
- Graduate
School of Life Science and System Engineering, Kyushu Institute of Technology, 2-4, Hibikino, Wakamatsu, 808-0196 Kitakyushu, Japan
| | - Priyanka Balyan
- Graduate
School of Life Science and System Engineering, Kyushu Institute of Technology, 2-4, Hibikino, Wakamatsu, 808-0196 Kitakyushu, Japan
| | - Tamaki Kato
- Graduate
School of Life Science and System Engineering, Kyushu Institute of Technology, 2-4, Hibikino, Wakamatsu, 808-0196 Kitakyushu, Japan
| | - Rostyslav Bilyy
- Lectinotest
R&D, Mechanichna
Str 2, 79000 Lviv, Ukraine
- Department
of Histology, Cytology & Embryology, Danylo Halytsky Lviv National Medical University, Pekarska Str. 69, 79010 Lviv, Ukraine
- Institute
of Cellular Biology and Pathology “Nicolae Simionescu”, 050568 Bucharest, Romania
| | - Shyam S. Pandey
- Graduate
School of Life Science and System Engineering, Kyushu Institute of Technology, 2-4, Hibikino, Wakamatsu, 808-0196 Kitakyushu, Japan
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McCarthy C, Geraghty P. Respiratory Immune Responses during Infection and Pollution Inhalation. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:medicina59020242. [PMID: 36837444 PMCID: PMC9959294 DOI: 10.3390/medicina59020242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 01/16/2023] [Accepted: 01/18/2023] [Indexed: 02/03/2023]
Abstract
The COVID-19 pandemic highlighted the importance of lung immune responses to pathogens and environmental factors [...].
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Affiliation(s)
- Cormac McCarthy
- University College Dublin School of Medicine, Education and Research Centre, St. Vincent’s University Hospital, D04 T6F4 Dublin, Ireland
- Correspondence: (C.M.); (P.G.); Tel.: +353-1-221-3323 (C.M.); +1-718-270-3141 (P.G.)
| | - Patrick Geraghty
- Department of Medicine, State University of New York Downstate Health Sciences University, Brooklyn, NY 11203, USA
- Correspondence: (C.M.); (P.G.); Tel.: +353-1-221-3323 (C.M.); +1-718-270-3141 (P.G.)
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Fee LT, Gogoi D, O’Brien ME, McHugh E, Casey M, Gough C, Murphy M, Hopkins AM, Carroll TP, McElvaney NG, Reeves EP. C3d Elicits Neutrophil Degranulation and Decreases Endothelial Cell Migration, with Implications for Patients with Alpha-1 Antitrypsin Deficiency. Biomedicines 2021; 9:biomedicines9121925. [PMID: 34944741 PMCID: PMC8698851 DOI: 10.3390/biomedicines9121925] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 12/09/2021] [Accepted: 12/11/2021] [Indexed: 12/25/2022] Open
Abstract
Alpha-1 antitrypsin (AAT) deficiency (AATD) is characterized by increased risk for emphysema, chronic obstructive pulmonary disease (COPD), vasculitis, and wound-healing impairment. Neutrophils play a central role in the pathogenesis of AATD. Dysregulated complement activation in AATD results in increased plasma levels of C3d. The current study investigated the impact of C3d on circulating neutrophils. Blood was collected from AATD (n = 88) or non-AATD COPD patients (n = 10) and healthy controls (HC) (n = 40). Neutrophils were challenged with C3d, and degranulation was assessed by Western blotting, ELISA, or fluorescence resonance energy transfer (FRET) substrate assays. Ex vivo, C3d levels were increased in plasma (p < 0.0001) and on neutrophil plasma membranes (p = 0.038) in AATD compared to HC. C3d binding to CR3 receptors triggered primary (p = 0.01), secondary (p = 0.004), and tertiary (p = 0.018) granule release and increased CXCL8 secretion (p = 0.02). Ex vivo plasma levels of bactericidal-permeability-increasing-protein (p = 0.02), myeloperoxidase (p < 0.0001), and lactoferrin (p < 0.0001) were significantly increased in AATD patients. In endothelial cell scratch wound assays, C3d significantly decreased cell migration (p < 0.0001), an effect potentiated by neutrophil degranulated proteins (p < 0.0001). In summary, AATD patients had increased C3d in plasma and on neutrophil membranes and, together with neutrophil-released granule enzymes, reduced endothelial cell migration and wound healing, with potential implications for AATD-related vasculitis.
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Affiliation(s)
- Laura T. Fee
- Alpha-1 Foundation Ireland, Royal College of Surgeons in Ireland, Beaumont Hospital, D02 YN77 Dublin, Ireland; (L.T.F.); (T.P.C.)
- Irish Centre for Genetic Lung Disease, Department of Medicine, Royal College of Surgeons in Ireland, Beaumont Hospital, D02 YN77 Dublin, Ireland; (D.G.); (M.E.O.); (E.M.); (M.C.); (C.G.); (M.M.); (N.G.M.)
| | - Debananda Gogoi
- Irish Centre for Genetic Lung Disease, Department of Medicine, Royal College of Surgeons in Ireland, Beaumont Hospital, D02 YN77 Dublin, Ireland; (D.G.); (M.E.O.); (E.M.); (M.C.); (C.G.); (M.M.); (N.G.M.)
| | - Michael E. O’Brien
- Irish Centre for Genetic Lung Disease, Department of Medicine, Royal College of Surgeons in Ireland, Beaumont Hospital, D02 YN77 Dublin, Ireland; (D.G.); (M.E.O.); (E.M.); (M.C.); (C.G.); (M.M.); (N.G.M.)
| | - Emer McHugh
- Irish Centre for Genetic Lung Disease, Department of Medicine, Royal College of Surgeons in Ireland, Beaumont Hospital, D02 YN77 Dublin, Ireland; (D.G.); (M.E.O.); (E.M.); (M.C.); (C.G.); (M.M.); (N.G.M.)
| | - Michelle Casey
- Irish Centre for Genetic Lung Disease, Department of Medicine, Royal College of Surgeons in Ireland, Beaumont Hospital, D02 YN77 Dublin, Ireland; (D.G.); (M.E.O.); (E.M.); (M.C.); (C.G.); (M.M.); (N.G.M.)
| | - Ciara Gough
- Irish Centre for Genetic Lung Disease, Department of Medicine, Royal College of Surgeons in Ireland, Beaumont Hospital, D02 YN77 Dublin, Ireland; (D.G.); (M.E.O.); (E.M.); (M.C.); (C.G.); (M.M.); (N.G.M.)
| | - Mark Murphy
- Irish Centre for Genetic Lung Disease, Department of Medicine, Royal College of Surgeons in Ireland, Beaumont Hospital, D02 YN77 Dublin, Ireland; (D.G.); (M.E.O.); (E.M.); (M.C.); (C.G.); (M.M.); (N.G.M.)
| | - Ann M. Hopkins
- Department of Surgery, Royal College of Surgeons in Ireland, Beaumont Hospital, D02 YN77 Dublin, Ireland;
| | - Tomás P. Carroll
- Alpha-1 Foundation Ireland, Royal College of Surgeons in Ireland, Beaumont Hospital, D02 YN77 Dublin, Ireland; (L.T.F.); (T.P.C.)
- Irish Centre for Genetic Lung Disease, Department of Medicine, Royal College of Surgeons in Ireland, Beaumont Hospital, D02 YN77 Dublin, Ireland; (D.G.); (M.E.O.); (E.M.); (M.C.); (C.G.); (M.M.); (N.G.M.)
| | - Noel G. McElvaney
- Irish Centre for Genetic Lung Disease, Department of Medicine, Royal College of Surgeons in Ireland, Beaumont Hospital, D02 YN77 Dublin, Ireland; (D.G.); (M.E.O.); (E.M.); (M.C.); (C.G.); (M.M.); (N.G.M.)
| | - Emer P. Reeves
- Irish Centre for Genetic Lung Disease, Department of Medicine, Royal College of Surgeons in Ireland, Beaumont Hospital, D02 YN77 Dublin, Ireland; (D.G.); (M.E.O.); (E.M.); (M.C.); (C.G.); (M.M.); (N.G.M.)
- Correspondence:
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