Detection of cancer cells in vitro using sigma-2 receptor...

Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

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C546S087000

Reexamination Certificate

active

07893266

ABSTRACT:
Methods for detection of cancer cells and for determining the proliferative status of cells in a tissue sample in vitro are disclosed. These methods comprise contacting a tissue sample with a radiolabeled compound or salt thereof of Formulawherein at least one of X, Y, and Z comprises a radioisotope, n is an integer from 2 to about 10; and each of A and A1is a C1-C4alkoxyl, a C1-C4fluoroalkyl or a C1-C4fluoroalkoxyl. The methods further comprise detecting the distribution of the radioisotope in the tissue sample, whereby a cell having a high density of the radioisotope compared to quiescent cells is diagnostic for a cancer cell.

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