In-vivo monitoring of circulating apoptotic cells

Chemistry: molecular biology and microbiology – Measuring or testing process involving enzymes or... – Involving antigen-antibody binding – specific binding protein...

Reexamination Certificate

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C435S007210, C435S007240, C435S286500, C435S287200, C436S517000, C436S546000, C436S010000, C436S056000, C436S063000, C436S064000, C436S164000, C436S172000, C424S009100, C422S073000, C422S082080, C422S082090

Reexamination Certificate

active

07745155

ABSTRACT:
The present invention provides methods and systems for performing in vivo flow cytometry. In one embodiments, selected circulating cells of interest of a subject are labeled with fluorescent probe molecules. The labeled cells are irradiated in-vivo so as to excite the fluorescent probes, and the radiation emitted by the excited probes is detected, preferably confocally. The detected radiation is then analyzed to derive desired information, such as relative cell count, of the cells of interest. In some embodiments, the circulating cells comprise apoptotic cells whose detection can allow, e.g., non-invasive monitoring of the efficacy of a cancer treatment, such as an anti-tumor or an anti-angiogenic therapy.

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