Imaging DNA Damage In Vivo Using γH2AX-Targeted Immunoconjugates
نویسندگان
چکیده
منابع مشابه
Imaging DNA damage in vivo using gammaH2AX-targeted immunoconjugates.
DNA damage responses (DDR) occur during oncogenesis and therapeutic responses to DNA damaging cytotoxic drugs. Thus, a real-time method to image DNA damage in vivo would be useful to diagnose cancer and monitor its treatment. Toward this end, we have developed fluorophore- and radioisotope-labeled immunoconjugates to target a DDR signaling protein, phosphorylated histone H2A variant H2AX (γH2AX...
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DNA double-strand breaks (DSB) and blocked replication forks activate the DNA damage response (DDR), a signaling pathway marked by phosphorylation of histone 2AX (H2AX). The phosphorylated form, γH2AX, accumulates at the site of damage and can be detected as foci by immunocytochemistry. Therefore, γH2AX is a sensitive and robust biomarker of DNA damage, notably DSB. Cells from peripheral blood ...
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DNA double-strand break repair involves phosphorylation of histone variant H2AX ('γH2AX'), which accumulates in foci at sites of DNA damage. In current models, the recruitment of multiple DNA repair proteins to γH2AX foci depends mainly on recognition of this 'mark' by a single protein, MDC1. However, DNA repair proteins accumulate at γH2AX sites without MDC1, suggesting that other 'readers' of...
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ژورنال
عنوان ژورنال: Cancer Research
سال: 2011
ISSN: 0008-5472,1538-7445
DOI: 10.1158/0008-5472.can-10-4587