Abstract
We have investigated in situ real-time monitoring of cell differentiation to adipocytes by using infrared absorption spectroscopy with the multiple internal reflection (MIR-IRAS) geometry. Preadipocyte 3T3-L1 cells were cultured on a silicon prism and their adipogenesis was monitored with MIR-IRAS for seven days. Differentiated cells showed a C=O stretching band of triacylglycerides, together with the protein amide I and amide II bands. The C=O stretching band appeared before optical microscopic confirmation of fat droplet formation, a typical morphological marker for adipocytes, demonstrating that MIR-IRAS is particularly useful for non-destructive monitoring of early adipogenesis. An effect of genistein, an antiadipogenic agent, was also investigated based on the peak intensity of the C=O stretching and amide bands. Thus, MIR-IRAS has a potential to evaluate antiadipogenic agents in terms of their effects on fat and protein synthesis during adipogenesis.
Original language | English |
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Pages (from-to) | 1176-1182 |
Number of pages | 7 |
Journal | Sensors and Actuators, B: Chemical |
Volume | 176 |
DOIs | |
Publication status | Published - 2013 Jan 1 |
Keywords
- Adipogenesis
- Infrared spectroscopy
- Live cell monitoring
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Instrumentation
- Condensed Matter Physics
- Surfaces, Coatings and Films
- Metals and Alloys
- Electrical and Electronic Engineering
- Materials Chemistry