Second harmonic imaging and scoring of collagen in fibrotic tissues. - Archive ouverte HAL Access content directly
Journal Articles Optics Express Year : 2007

Second harmonic imaging and scoring of collagen in fibrotic tissues.

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Abstract

We compare second harmonic generation (SHG) to histological and immunohistochemical techniques for the visualization and scoring of collagen in biological tissues. We show that SHG microscopy is highly specific for fibrillar collagens and that combined SHG and two-photon excited fluorescence (2PEF) imaging can provide simultaneous three-dimensional visualization of collagen synthesis and assembly sites in transgenic animal models expressing GFP constructs. Finally, we propose several scores for characterizing collagen accumulation based on SHG images and appropriate for different types of collagen distributions. We illustrate the sensitivity of these scores in a murine model of renal fibrosis using a morphological segmentation of the tissue based on endogenous 2PEF signals. © 2007 Optical Society of America
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Dates and versions

hal-00824058 , version 1 (13-11-2013)

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Mathias Strupler, Ana-Maria Pena, Monica Hernest, Pierre-Louis Tharaux, Jean-Louis Martin, et al.. Second harmonic imaging and scoring of collagen in fibrotic tissues.. Optics Express, 2007, 15 (7), pp.4054-4065. ⟨10.1364/OE.15.004054⟩. ⟨hal-00824058⟩
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