Noninvasive and Quantitative Assessment of in Vivo Angiogenesis Using RGD-based Fluorescence Imaging of Subcutaneous Sponges
Overview
Radiology
Affiliations
Purpose: There is a real need to adapt simple and reproducible imaging methodologies to evaluate noninvasively pro- and antiangiogenic activities of new treatments in a physiological context in mice.
Procedure: The angiogenic response to fibroblast growth factor 2 (FGF-2) in a model of subcutaneously implanted cellulose sponges was measured in parallel after an intravenous injection of a fluorescent αvβ3 integrin-targeting molecule (Angiolone(TM)) and an fluorescence diffuse optical tomography optical imaging system and by measuring the hemoglobin content in the sponges.
Results: Optical measurements of angiogenesis correlated perfectly with the values obtained using hemoglobin quantification. This assay can be used to follow the activity of a pro- or antiangiogenic treatment like demonstrated after FGF-2 or angiostatin, respectively.
Conclusion: The perfectly controlled quality of cellulose sponges combined to this noninvasive optical method allow rapid, accurate, and reproducible measurements of angiogenic activities in vivo at the preclinical level.
RGD-Based Fluorescence to Assess Placental Angiogenesis.
Josserand V, Lavaud J, Keramidas M, Collet C, Traboulsi W, Hoffmann P Methods Mol Biol. 2023; 2728:131-136.
PMID: 38019397 DOI: 10.1007/978-1-0716-3495-0_11.
Jia T, Jacquet T, Dalonneau F, Coudert P, Vaganay E, Exbrayat-Heritier C BMC Biol. 2021; 19(1):173.
PMID: 34433435 PMC: 8390225. DOI: 10.1186/s12915-021-01103-3.
Desroches-Castan A, Quelard D, Demeunynck M, Constant J, Dong C, Keramidas M Oncotarget. 2015; 6(7):5382-411.
PMID: 25742784 PMC: 4467156. DOI: 10.18632/oncotarget.2979.
Keramidas M, Lavaud J, Sergent F, Hoffmann P, Brouillet S, Feige J Biomed Res Int. 2014; 2014:309082.
PMID: 25110672 PMC: 4119748. DOI: 10.1155/2014/309082.
Spatial vascular volume fraction imaging for quantitative assessment of angiogenesis.
Liu J, Fan W, Liu M, Lin X, Wang Y, Wang F Mol Imaging Biol. 2013; 16(3):362-71.
PMID: 24158404 DOI: 10.1007/s11307-013-0694-z.