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High-resolution, imaging TOF-SIMS: novel applications in medical research

Journal article
Authors Per Malmberg
Eva Jennische
Daniel Nilsson
Håkan Nygren
Volume 399
Issue 8
Pages 2711-2718
ISSN 1618-2642
Publication year 2011
Published at Institute of Biomedicine, Department of Medical and Clinical Genetics
Institute of Biomedicine, Department of Medical Biochemistry and Cell Biology
Pages 2711-2718
Language en
Keywords tof-sims, cytochemistry, histopathological diagnosis
Subject categories Basic Medicine, Analytical Chemistry


Abstract: The use of high-resolution, imaging TOF-SIMS is described and examples are made to demonstrate the application of the method in medical research. Cytochemistry by TOF-SIMS is shown by localization of diacylglycerol (DG) in cryostat sections of hyaline cartilage and by localization of corticosterone in cryostat sections of the adrenal gland cortex. Quantitative measurements and comparison of groups is shown by comparing the lipid content of adipose tissue from two mouse strains, transgenic mouse expressing the FOXC2 gene and wild-type controls. Finally, biopsies made for histopathological diagnosis of infantile reversible cytochrome c oxidase deficiency myopathy were analyzed in order to define the chemical content of areas showing a pathological structure in the light microscope. The use of high-resolution, imaging TOF-SIMS in medical research allows analysis of intact tissue and probe-free localization of specific target molecules in cells and tissues. The TOF-SIMS analysis is not dependent on penetration of reagents into the sample and also independent of probe reactivity such as cross-reactivity or background staining. The TOF-SIMS method can be made quantitative and allows for analysis of specific target molecules in defined tissue compartments.

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