Clinicopathological significance and prognostic value of leukemia-related protein 16 expression in invasive ductal breast carcinoma.

Abstract

To explore the expression of leukemia-related protein 16 (LRP16) in invasive ductal breast carcinoma and analyze its correlation with clinicopathological feature and prognosis, immunohistochemistry was performed on 100 cases of invasive ductal breast carcinoma. Medical records were reviewed and clinicopathological analysis was performed. Leukemia-related protein 16 expression was detected in 33 of 100 cases (33%) of the invasive ductal breast carcinoma. Expression of LRP16 in carcinoma was obviously higher than that in normal breast tissue. LRP16 protein expression was found in 27.6% (21/76) of carcinoma at stage I and II, and 50.0% (12/24) of carcinoma at stage III and IV. LRP16 expression was found correlative with metastasis in the axillary lymph node (P = 0.001), stage (P = 0.042), estrogen receptor (ER) expression (P = 0.001), fragile histidine triad (FHIT) expression (P = 0.015) and CD133 expression (P = 0.038), but not with grade (P = 0.543), tumor size (P = 0.263), age (P = 0.840), menopause (P = 0.701) and HER-2 gene amplification (P = 0.463). The difference of the mean disease free survival (DFS) time between cancer patients with LRP16 expression (43.7 months) and those without (77.7 months) was statistically significant (Log rank = 9.989, P = 0.002). The difference of the mean overall survival (OS) time between cancer patients with LRP16 expression (50.0 months) and those without (120.0 months) was statistically significant (Log rank = 9.977, P = 0.002). Our finding suggests that expression of LRP16 protein is correlated with the stage, metastasis, prognosis and expression of ER, progesterone receptor, Ki-67, CD133 and FHIT in invasive ductal breast carcinoma.

• Authors: Po Zhao, Yali Lu, Weidong Han
• Journal: Cancer science (Cancer Sci) Vol. 101 Issue 10 Pg. 2262-8 (Oct 2010) ISSN: 1349-7006 [Electronic] England
• PMID: 20649898 (Publication Type: Journal Article)
• Copyright: © 2010 Japanese Cancer Association.

Chemical References

• Neoplasm Proteins
• Receptors, Estrogen
• fragile histidine triad protein
• Carboxylic Ester Hydrolases
• MACROD1 protein, human
• Acid Anhydride Hydrolases

Topics

• Acid Anhydride Hydrolases (analysis)
• Adult
• Aged
• Aged, 80 and over
• Breast Neoplasms (chemistry, mortality, pathology)
• Carboxylic Ester Hydrolases
• Carcinoma, Ductal, Breast (chemistry, mortality, pathology)
• Female
• Genes, erbB-2
• Humans
• Immunohistochemistry
• Middle Aged
• Neoplasm Proteins (analysis)
• Prognosis
• Receptors, Estrogen (analysis)