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Diagnostic and Prognostic Roles of CDX2 Immunohistochemical Expression in Colorectal Cancers

Hong Bae Choi,Jung-Soo Pyo, Soomin Son,Kyungdoc Kim,Guhyun Kang

DIAGNOSTICS(2022)

Cited 4|Views6
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Abstract
The study is aimed to evaluate the diagnostic and prognostic role of the immunohistochemical expression of the Caudal-type homeobox transcription factor 2 (CDX2) in colorectal cancers (CRCs) through a meta-analysis. By searching relevant databases, 38 articles were eligible to be included in this study. We extracted the information for CDX2 expression rates and the correlation between CDX2 expression and clinicopathological characteristics. The estimated rates of CDX2 expression were 0.882 [95% confidence interval (CI) 0.774-0.861] and 0.893 (95% CI 0.820-0.938) in primary and metastatic CRCs, respectively. Furthermore, based on their histologic subtype, CDX2 expression rates of adenocarcinoma and medullary carcinoma were 0.886 (95% CI 0.837-0.923) and 0.436 (95% CI 0.269-0.618), respectively. There was a significant difference in CDX2 expression rates between adenocarcinoma and medullary carcinoma in the meta-regression test (p < 0.001). In addition, CDX2 expression was significantly lower in CRCs with the BRAF(V600E) mutation than in CRCs without mutation. Patients with CDX2 expression had better overall and cancer-specific survival rates than those without CDX2 expression. Thus, CDX2 is a useful diagnostic and prognostic marker CRCs.
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Key words
colorectal cancer,CDX2,immunohistochemistry,diagnosis,prognosis,meta-analysis
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