Expression of Phosphatase Regenerating Liver-1 in Esophageal Squamous Cell Carcinoma Associated with Metastasis

Table 1

Frequency of PRL-1 protein expression in benign and malignant esophageal tissues.

	Number of cases	PRL-1+	𝑃 values
Normal esophagus	20	0	<.001*
ESCC	60	41 (68.3%)
ESCC (LN−)	20	10 (50.0%)
ESCC (LN+)	40	31 (77.5%)	0.031^@
MESCC	40	39 (97.5%)	0.003*, 0.001^@, 0.025^#
EA	6	4 (66.7%)	0.508*

ESCC: esophageal squamous cell carcinoma; ESCC (LN−): ESCC without lymph node metastasis; ESCC (LN+): ESCC with lymph node metastasis; MESCC: metastatic ESCC; EA: esophageal adenocarcinoma; *: compared with ESCC; ^@: compared with ESCC (LN−); ^#: compared with ESCC (LN+).