Open AccessEstablishment of new predictive markers for distant recurrence of colorectal cancer using lectin microarray analysis
Author(s) -
Nakajima Kentaro,
Inomata Masafumi,
Iha Hidekatsu,
Hiratsuka Takahiro,
Etoh Tsuyoshi,
Shiraishi Norio,
Kashima Kenji,
Kitano Seigo
Publication year - 2015
Publication title -
cancer medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.403
H-Index - 53
ISSN - 2045-7634
DOI - 10.1002/cam4.342
Subject(s) - lectin , colorectal cancer , tissue microarray , biomarker , microarray , pathology , glycan , staining , epithelium , cancer , biology , cancer research , microarray analysis techniques , glycoprotein , immunohistochemistry , medicine , oncology , microbiology and biotechnology , gene , biochemistry , gene expression
We evaluated the clinical benefits of novel predictive markers for distant recurrence with colorectal cancer using lectin microarray analysis of cell surface glycan modifications. Glycoproteins were extracted from formalin‐fixed, paraffin‐embedded tumor specimens and normal epithelium from 53 consecutive curatively resected stage I–III colorectal cancer cases and then subjected to lectin microarray to obtain lectin–glycan interaction ( LGI ) values. In addition, clinicopathological factors associated with distant recurrence were identified. LGI values that were associated with distant recurrence were validated with an additional 55 curatively resected stage II colorectal cancer cases. LGI values for Agaricus bisporus ( ABA ) lectin, prominent in cancer tissues, were statistically associated with distant recurrence. ABA lectin staining exhibited strikingly intense signals in the cytoplasm and apical surfaces of cancer cells, while weak staining was observed in the supranuclear regions of normal epithelium. This ABA tumor/normal LGI ratio may be a new predictive biomarker for distant recurrence of curatively resected colorectal cancer.