FTIR microscopy as a method for detection of retrovirally transformed cells

Article type: Research Article

Authors: Huleihel, Mahmoud | Talyshinsky, Marina | Erukhimovitch, Vitaly

Affiliations: The Institute for Applied Biosciences, Ben‐Gurion University of the Negev, POB 653, Beer‐Sheva 84105, Israel

Note: [] Corresponding author. Tel.: +972 8 6461999; Fax: +972 8 6472970; E‐mail: [email protected].

Abstract: Fourier transform infrared (FTIR) spectroscopy is a unique technique that has potential for the optical diagnosis of cellular variations based on the characteristic molecular vibrational spectra of the cells. In the present study, a refinement of this technique – FTIR microscopy – was used in a mouse model to investigate spectral differences between primary cells and malignant cells transformed by murine sarcoma virus (MuSV). The advantage of FTIR microscopy is that it facilitates inspection of a restricted region of cell growth on a slide. A significant decrease in the intensities of the spectra was seen in malignant cells transformed by MuSV compared to primary normal cells. Also, there was a significant shift in the PO2− symmetric stretching mode from 1082 cm−1 for normal cells to 1086 cm−1 for malignant cells. Detectable and consistent differences between normal primary and malignant cells were evident in the shapes and positions of a number of peaks in the FTIR spectra. Our results indicated that FTIR microscopy has potential as a diagnostic method for the detection of malignant cells.

Journal: Spectroscopy, vol. 15, no. 2, pp. 57-64, 2001