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Methods and compositions which provide a gene expression-based prognostic signature of cancer relapse and prediction of metastatic cancer are described, and in particular methods to predict colorectal cancer (CRC) recurrence and chemosensitivity.

Titel:	Compositions And Methods For Cancer Testing
Autor/in / Beteiligte Person:	Wyhs, Nicolas ; Foster, Gabe ; Ramaswami, Mukundhan ; Sears, Christopher
Link:	View record in USPTO Patent Applications (Volltext)
Veröffentlichung:	2012
Medientyp:	Patent
Sonstiges:	Nachgewiesen in: USPTO Patent Applications Sprachen: English Document Number: 20120077198 Publication Date: March 29, 2012 Appl. No: 13/185795 Application Filed: July 19, 2011 Claim: 1. A method of improving human RNA yield, comprising: a) providing human RNA released from formalin-fixed paraffin-embedded colorectal cancer tissue; b) recovering said RNA by solid phase extraction on a filter comprising i) loading the RNA on said filter, ii) washing the filter, and iii) eluting the RNA, wherein said eluting comprises applying an aqueous solution to said filter, wherein said solution has been heated above 80° C. Claim: 2. The method of claim 1, wherein said solution has been heated to approximately 95° C. Claim: 3. The method of claim 1, wherein said filter is part of a filter cartridge. Claim: 4. The method of claim 1, wherein said filter comprises silica. Claim: 5. The method of claim 1, wherein the yield of RNA eluted from said filter with said heated solution is higher than achieved with an unheated solution. Claim: 6. The method of claim 2, wherein the volume of solution added to the filter is between 50 and 100 microliters. Claim: 7. The method of claim 1, further comprising utilizing said RNA in an RT-PCR assay. Claim: 8. The method of claim 7, wherein said RT-PCR assay generates amplicons between 60 and 150 bases in length. Claim: 9. The method of claim 7, wherein said RT-PCR assay generates amplicons from non-human control sequences. Claim: 10. The method of claim 9, wherein said non-human control sequences are selected from the group consisting of SEQ ID NOS: 1-3. Claim: 11. A method of controlling for variability in an RT-PCR assay, comprising: a) providing human RNA released from formalin-fixed paraffin-embedded colorectal cancer tissue; and b) utilizing said RNA in an RT-PCR assay comprising spiked-in controls. Claim: 12. The method of claim 11, wherein said RT-PCR assay generates amplicons from said spiked in controls. Claim: 13. The method of claim 12, wherein said spiked-in controls are non-human control sequences. Claim: 14. The method of claim 13, wherein said non-human control sequences are selected from the group consisting of SEQ ID NOS: 1-3. Current U.S. Class: 435/612 Current International Class: 12

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Compositions And Methods For Cancer Testing