Second harmonic imaging of intrinsic signals in muscle fibers in situ.

Both M, Vogel M, Friedrich O, von Wegner F, Künsting T, Fink R, Uttenweiler D (2004)

Publication Status: Published

Publication Type: Journal article

Publication year: 2004

Journal

Journal of Biomedical Optics Society of Photo-optical Instrumentation Engineers (SPIE)

Publisher: Society of Photo-optical Instrumentation Engineers (SPIE)

Book Volume: 9

Pages Range: 882-92

Journal Issue: 5

DOI: 10.1117/1.1783354

Abstract

We use second harmonic generation (SHG) imaging to study and quantify a strong intrinsic SHG signal in skeletal muscle fiber preparations and single isolated myofibrils. The intrinsic signal follows the striation pattern of the muscle cells and is positioned at the sarcomeric location of the myosin filaments. Interestingly, the signal is enhanced at the region where the myosin heads are located on the myosin filaments. As the intrinsic signal reflects the subcellular structure in an accurate way, SHG can be used for noninvasive high resolution structural imaging without exogenous labels in living muscle cells. This may be very important for detecting changes in myofibrillar organization occurring under pathophysiological conditions, e.g., in cardiac and skeletal myopathies. Due to the strong dependency of SHG on orientation and symmetries of the tissue, it may allow the study of dynamic interactions between the contractile proteins actin and myosin during force production and muscle shortening. Furthermore, SHG imaging can be combined with other nonlinear microscopical techniques, such as laser scanning multiphoton fluorescence microscopy, to simultaneously measure other dynamic cellular processes, representing a complementary method and extending the range of nonlinear microscopical methods.

Authors with CRIS profile

Oliver Friedrich Lehrstuhl für Medizinische Biotechnologie

Involved external institutions

Ruprecht-Karls-Universität Heidelberg DE Germany (DE) Goethe-Universität Frankfurt am Main DE Germany (DE)

How to cite

APA:

Both, M., Vogel, M., Friedrich, O., von Wegner, F., Künsting, T., Fink, R., & Uttenweiler, D. (2004). Second harmonic imaging of intrinsic signals in muscle fibers in situ. Journal of Biomedical Optics, 9(5), 882-92. https://doi.org/10.1117/1.1783354

MLA:

Both, Martin, et al. "Second harmonic imaging of intrinsic signals in muscle fibers in situ." Journal of Biomedical Optics 9.5 (2004): 882-92.

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