Radiation-induced bystander effect: early process and rapid assessment.

Area of Science:

• Radiobiology
• Cellular and Molecular Biology

Background:

• The radiation-induced bystander effect (RIBE) involves biological effects in non-irradiated cells due to signals from irradiated cells.
• RIBE has implications for radiotherapy and understanding low-dose radiation risks.

Purpose of the Study:

• To highlight the significance of RIBE and the need for rapid assessment techniques.
• To review the biological effects and detection methods for RIBE.

Main Methods:

• Detection of proteins related to DNA damage and repair, cell cycle control, and proliferation.
• Utilizing research systems including cultured cells, 3D tissue models, and animal models.

Main Results:

• RIBE can induce genetic damage, alter gene expression, promote cell transformation, and affect proliferation and cell death.
• Experimental data suggest RIBE can be initiated within minutes after radiation exposure.

Conclusions:

• RIBE poses potential hazards to normal tissues during radiotherapy.
• There is a critical need for rapid assessment techniques for RIBE and its early cellular processes.