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Fluorescence Lifetime Imaging Microscopy and LAURDAN Spectral Imaging for Dynamically Investigating Osteoclast Differentiation
- Nguyen, Dean Gia
- Advisor(s): Digman, Michelle A
Abstract
Osteoclasts, the multinucleated bone-resorbing cells, are involved in the destructive breakdown of bones in many diseases such as osteoporosis and rheumatoid arthritis. Designing an efficient and specific therapeutic strategy to these diseases would depend on understanding osteoclasts differentiation. Although gene expression quantification and biochemical techniques have been used extensively to study osteoclast differentiation, they lack the capability to dynamically examine live osteoclasts at the single-cell level. In this thesis, we explored the practicality of the two minimally invasive microscopy techniques, NAD(P)H Fluorescence Lifetime Imaging and LAURDAN spectral imaging, in observing cellular metabolic profiles and membrane dynamics respectively during osteoclast differentiation. In addition to establishing the practicality of these two imaging platforms, our report offered a deeper understanding regarding the roles of metabolism and membrane dynamics in osteoclasts differentiation and pathogenesis of osteoclasts-associated diseases.
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