Monitoring Biochemical Changes of Neuroblastoma Cells in Early Stages After X-Ray Exposure by Using Fourier-Transform...

Area of Science:

• Biomedical Optics
• Cellular Biology
• Medical Physics

Background:

• Radiotherapy commonly uses X-ray radiation treatments.
• Fourier-transform infrared microspectroscopy (μ-FTIR) is effective for monitoring radiotherapy effects.
• Previous studies focused on cellular changes hours or days after irradiation.

Purpose of the Study:

• To investigate early cellular changes in SH-SY5Y neuroblastoma cells within the first hours after X-ray irradiation using μ-FTIR.
• To analyze molecular alterations in lipids, proteins, and DNA during this understudied time window.
• To provide insights into timely radiotherapy efficacy assessment and personalized treatment planning.

Main Methods:

• SH-SY5Y neuroblastoma cells were exposed to X-ray radiation.
• Cell samples were collected immediately, 2 hours, and 4 hours post-irradiation, along with unexposed controls.
• μ-FTIR was employed to analyze spectral contributions of lipids, proteins, and DNA.

Main Results:

• Distinct spectral changes were observed in lipids, proteins, and DNA within hours of X-ray exposure.
• Analysis revealed early molecular responses to radiation in neuroblastoma cells.
• The study identified specific spectral signatures indicative of cellular response to radiation.

Conclusions:

• μ-FTIR can detect early molecular changes in cells following X-ray irradiation.
• Understanding these early changes is crucial for assessing radiotherapy efficacy.
• This approach has potential applications in personalized cancer treatment planning.