Two-photon intravital imaging of thrombus development

Malgorzata M. Kamocka, Jian Mu, Xiaomin Liu, Nan Chen, Amy Zollman, Barbara Sturonas-Brown, Kenneth Dunn, Zhiliang Xu, Danny Z. Chen, Mark S. Alber, Elliot D. Rosen

Research output: Contribution to journalArticle

42 Scopus citations

Abstract

Thrombus development in mouse mesenteric vessels following laser-induced injury was monitored by high-resolution, near-real-time, two-photon, intravital microscopy. In addition to the use of fluorescently tagged fibrin(ogen) and platelets, plasma was labeled with fluorescently tagged dextran. Because blood cells exclude the dextran in the single plane, blood cells appear as black silhouettes. Thus, in addition to monitoring the accumulation of platelets and fibrin in the thrombus, the protocol detects the movement and incorporation of unlabeled cells in and around it. The developing thrombus perturbs the blood flow near the thrombus surface, which affects the incorporation of platelets and blood cells into the structure. The hemodynamic effects and incorporation of blood cells lead to the development of thrombi with heterogeneous domain structures. Additionally, image processing algorithms and simulations were used to quantify structural features of developing thrombi. This analysis suggests a novel mechanism to stop the growth of developing thrombus.

Original languageEnglish (US)
Article number016020
JournalJournal of Biomedical Optics
Volume15
Issue number1
DOIs
StatePublished - Dec 1 2010

Keywords

  • Coagulation
  • Hemostasis
  • Intravital microscopy
  • Laser vascular injury
  • Thrombogenesis
  • Two-photon imaging

ASJC Scopus subject areas

  • Biomedical Engineering
  • Biomaterials
  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics

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  • Cite this

    Kamocka, M. M., Mu, J., Liu, X., Chen, N., Zollman, A., Sturonas-Brown, B., Dunn, K., Xu, Z., Chen, D. Z., Alber, M. S., & Rosen, E. D. (2010). Two-photon intravital imaging of thrombus development. Journal of Biomedical Optics, 15(1), [016020]. https://doi.org/10.1117/1.3322676