Quantum dot-based mortalin staining as a visual assay for detection of induced senescence in cancer cells.

Abstract:

:Quantum dots (QDs) are fluorescent nanocrystals that are emerging as fine alternatives to the conventional organic dyes. They have several advantages including greater photostability and a wider range of excitation-emission wavelengths. By using mortalin staining as a model, we initially demonstrated that the QDs are more stable and provide better resolution in protein imaging in fixed cells. With the help of an internalizing antibody, we generated internalizing QD (i-QD) and demonstrated its inertness to cell replication, structure, and viability. Based on the superior resolution, stability and inertness, we propose the use of QD staining of mortalin as a cell-based visual assay to screen for senescence-inducing drugs, proteins, and siRNAs.

journal_name

Ann N Y Acad Sci

authors

Kaul Z,Yaguchi T,Chiura HX,Kaul SC,Wadhwa R

doi

10.1196/annals.1395.040

subject

Has Abstract

pub_date

2007-04-01 00:00:00

pages

368-72

eissn

0077-8923

issn

1749-6632

pii

1100/1/368

journal_volume

1100

pub_type

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