Protocol for immunodot blot detection of UVB photoproducts in extracellular DNA

Summary: UV radiation induces the formation of adducts in genomic DNA within cells that are later found to be present in cell-free fractions associated with extracellular vesicles (EVs) outside of cells. Here, we present a protocol for isolating UV photoproducts in extracellular DNA released from UV...

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Bibliographic Details
Main Authors: M. Alexandra Carpenter, Sri Yerrapragada, Aleena Alex, Michael G. Kemp
Format: Article
Language:English
Published: Elsevier 2024-03-01
Series:STAR Protocols
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2666166724000030
Description
Summary:Summary: UV radiation induces the formation of adducts in genomic DNA within cells that are later found to be present in cell-free fractions associated with extracellular vesicles (EVs) outside of cells. Here, we present a protocol for isolating UV photoproducts in extracellular DNA released from UVB-irradiated cells via differential centrifugation. We then detail steps for monitoring the DNA adducts using DNA immunoblotting. This protocol can be applied for detection of DNA adducts in EVs from cell culture and skin explant models.For complete details on the use and execution of this protocol, please refer to Carpenter et al.1 : Publisher’s note: Undertaking any experimental protocol requires adherence to local institutional guidelines for laboratory safety and ethics.
ISSN:2666-1667