Selective analysis of antitumor drug interaction with living cancer cells as probed by surface-enhanced Raman spectroscopy |
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Authors: | I R Nabiev H Morjani M Manfait |
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Institution: | (1) Laboratoire de Spectroscopic Biomoléculaire, UFR de Pharmacie, Université de Reims, 51 rue Cognacq-Jay, F-51096 Reims Cedex, France;(2) Present address: Shemyakin Institute of Bioorganic Chemistry, USSR Academy of Sciences, 117871 Moscow, USSR |
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Abstract: | A new technique for the selective measurement of small amounts of antitumor drugs in the nucleus and cytoplasm of a living cancer cell, based on surface-enhanced Raman spectroscopy (SERS), is proposed. The ability to detect SERS signals from very dilute (up to 10–10
M) solutions of doxorubicin or adriamycin (DOX), and 4O-tetrahydropyranyl-adriamycin (THP-ADM), as well as from their complexes with targets in vitro and in vivo, has been demonstrated. SERS spectra were obtained from a population as well as from single living erythroleukaemic K562 cells treated with DOX. The results of the measurements on the population of cells containing DOX in nuclei or in the cytoplasm are well correlated with the microscopic SERS measurements on the single cells treated with DOX, obtained by selectively recording signals from the living cell nucleus or from the cytoplasm. Possibilities for the application of this new technique in different aspects of cancer research are discussed.Abbreviations DNA
deoxyribonucleic acid
- DOX
doxorubicin
- SERS
surface-enhanced Raman spectroscopy
- THP-ADM
4O-tetrahydropyranyl adriamycin
- PBS
phosphate buffered saline
Offprint requests to: M. Manfait |
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Keywords: | Living cancer cell Doxorubicin Surface-enhanced Raman spectroscopy |
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