Novel surface targets and serum biomarkers from the ovarian cancer vasculature.

Abstract:

:The molecular phenotype of tumor vasculature is different from normal vasculature, offering new opportunities for diagnosis and therapy of cancer, but the identification of tumor-restricted targets remains a challenge. We investigated 13 tumor vascular markers (TVMs) from 50 candidates identified through expression profiling of ovarian cancer vascular cells and selected to be either transmembrane or secreted, and to be either absent or expressed at low levels in normal tissues while overexpressed in tumors, based on analysis of 1,110 normal and tumor tissues from publicly available Affymetrix microarray data. Tumor-specific expression of each TVM was confirmed at the protein level in tumor tissue and/or in serum. Among the 13 TVMs, 11 were expressed on tumor vascular endothelium; the remaining 2 TVMs were expressed by tumor leukocytes. Our results demonstrate that certain transmembrane TVMs such as ADAM12 and CDCP1 are selectively expressed in tumor vasculature and represent promising targets for vascular imaging or anti-vascular therapy of epithelial ovarian cancer, while secreted or shed molecules such as TNFRSF21/DR6 can function as serum biomarkers. We have identified novel tumor-specific vasculature markers which appear promising for cancer serum diagnostics, molecular imaging and/or therapeutic targeting applications and warrant further clinical development.

journal_name

Cancer Biol Ther

journal_title

Cancer biology & therapy

authors

Sasaroli D,Gimotty PA,Pathak HB,Hammond R,Kougioumtzidou E,Katsaros D,Buckanovich R,Devarajan K,Sandaltzopoulos R,Godwin AK,Scholler N,Coukos G

doi

10.4161/cbt.12.3.16260

subject

Has Abstract

pub_date

2011-08-01 00:00:00

pages

169-80

issue

3

eissn

1538-4047

issn

1555-8576

pii

16260

journal_volume

12

pub_type

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