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Title: Mechanistic and quantitative studies of bystander response in 3D tissues for low-dose radiation risk estimations

Technical Report ·
OSTI ID:1083233

We have used the MatTek 3-dimensional human skin model to study the gene expression response of a 3D model to low and high dose low LET radiation, and to study the radiation bystander effect as a function of distance from the site of irradiation with either alpha particles or low LET protons. We have found response pathways that appear to be specific for low dose exposures, that could not have been predicted from high dose studies. We also report the time and distance dependent expression of a large number of genes in bystander tissue. the bystander response in 3D tissues showed many similarities to that described previously in 2D cultured cells, but also showed some differences.

Research Organization:
Trustees of Columbia University
Sponsoring Organization:
USDOE Office of Science (SC)
DOE Contract Number:
FG02-07ER64336
OSTI ID:
1083233
Report Number(s):
DOE/ER64336-3
Country of Publication:
United States
Language:
English