» Articles » PMID: 39196054

Non-invasive Mapping of Systemic Neutrophil Dynamics Upon Cardiovascular Injury

Abstract

Neutrophils play a complex role during onset of tissue injury and subsequent resolution and healing. To assess neutrophil dynamics upon cardiovascular injury, here we develop a non-invasive, background-free approach for specific mapping of neutrophil dynamics by whole-body magnetic resonance imaging using targeted multimodal fluorine-loaded nanotracers engineered with binding peptides specifically directed against murine or human neutrophils. Intravenous tracer application before injury allowed non-invasive three-dimensional visualization of neutrophils within their different hematopoietic niches over the entire body and subsequent monitoring of their egress into affected tissues. Stimulated murine and human neutrophils exhibited enhanced labeling due to upregulation of their target receptors, which could be exploited as an in vivo readout for their activation state in both sterile and nonsterile cardiovascular inflammation. This non-invasive approach will allow us to identify hidden origins of bacterial or sterile inflammation in patients and also to unravel cardiovascular disease states on the verge of severe aggravation due to enhanced neutrophil infiltration or activation.

Citing Articles

CD63 as novel target for nanoemulsion-based F MRI imaging and drug delivery to activated cardiac fibroblasts.

Euan Martinez A, Bergmann A, Tellkamp F, Schott-Verdugo S, Bouvain P, Steinhausen J Theranostics. 2025; 15(1):1-18.

PMID: 39744226 PMC: 11667234. DOI: 10.7150/thno.96990.


Neutrophils Respond Selectively to Physical Cues: Roughness Modulates Its Granule Release, and NETosis.

Elangovan G, Fernandes D, Cameron A, Basu S, De Mello Neto J, Jiang P J Funct Biomater. 2024; 15(11).

PMID: 39590546 PMC: 11595799. DOI: 10.3390/jfb15110342.


Neutrophil phenotypes in prolonged labor: Implications for therapeutic strategies.

Obeagu E, Obeagu G Medicine (Baltimore). 2024; 103(46):e40611.

PMID: 39560573 PMC: 11576028. DOI: 10.1097/MD.0000000000040611.


A refined TTC assay precisely detects cardiac injury and cellular viability in the infarcted mouse heart.

Ding Z, Liu X, Jiang H, Zhao J, Temme S, Bouvain P Sci Rep. 2024; 14(1):25214.

PMID: 39448689 PMC: 11502796. DOI: 10.1038/s41598-024-76414-w.


Advances in targeted delivery of mRNA into immune cells for enhanced cancer therapy.

Huang L, Huang Z, Zhang Y, Lin C, Zhao Z, Li R Theranostics. 2024; 14(14):5528-5550.

PMID: 39310113 PMC: 11413781. DOI: 10.7150/thno.93745.


References
1.
Goldschmeding R, van Dalen C, FABER N, Calafat J, Huizinga T, van der Schoot C . Further characterization of the NB 1 antigen as a variably expressed 56-62 kD GPI-linked glycoprotein of plasma membranes and specific granules of neutrophils. Br J Haematol. 1992; 81(3):336-45. DOI: 10.1111/j.1365-2141.1992.tb08237.x. View

2.
Homann S, Grandoch M, Kiene L, Podsvyadek Y, Feldmann K, Rabausch B . Hyaluronan synthase 3 promotes plaque inflammation and atheroprogression. Matrix Biol. 2017; 66:67-80. PMC: 6023397. DOI: 10.1016/j.matbio.2017.09.005. View

3.
Skubitz K, Campbell K, Skubitz A . CD66a, CD66b, CD66c, and CD66d each independently stimulate neutrophils. J Leukoc Biol. 1996; 60(1):106-17. DOI: 10.1002/jlb.60.1.106. View

4.
Flogel U, Ding Z, Hardung H, Jander S, Reichmann G, Jacoby C . In vivo monitoring of inflammation after cardiac and cerebral ischemia by fluorine magnetic resonance imaging. Circulation. 2008; 118(2):140-8. PMC: 2735653. DOI: 10.1161/CIRCULATIONAHA.107.737890. View

5.
Zhou G, Yu L, Fang L, Yang W, Yu T, Miao Y . CD177 neutrophils as functionally activated neutrophils negatively regulate IBD. Gut. 2017; 67(6):1052-1063. DOI: 10.1136/gutjnl-2016-313535. View