ALDH1 expression predicts progression of premalignant lesions to cancer in Type I endometrial carcinomas

被引:12
作者
Mah, Vei [1 ]
Elshimali, Yahya [3 ]
Chu, Alison [2 ]
Moatamed, Neda A. [1 ]
Uzzell, Jamar P. [1 ]
Tsui, Jessica [1 ]
Schettler, Stephen [1 ]
Shakeri, Hania [1 ]
Wadehra, Madhuri [1 ,3 ,4 ]
机构
[1] Univ Calif Los Angeles, David Geffen Sch Med, MacDonald Res Labs 4525, Dept Pathol & Lab Med, Los Angeles, CA 90095 USA
[2] Univ Calif Los Angeles, David Geffen Sch Med, Dept Pediat, Los Angeles, CA 90095 USA
[3] Charles R Drew Univ Med & Sci, Dept Med, Div Canc Res & Training, 1621 E 120th St, Los Angeles, CA 90059 USA
[4] Univ Calif Los Angeles, David Geffen Sch Med, Jonsson Comprehens Canc Ctr, Los Angeles, CA 90095 USA
关键词
STEM-CELLS; BREAST-CANCER; ALDEHYDE DEHYDROGENASES; CLASSIFICATION; PROGNOSIS;
D O I
10.1038/s41598-021-90570-3
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
In type 1 endometrial cancer, unopposed estrogen stimulation is thought to lead to endometrial hyperplasia which precedes malignant progression. Recent data from our group and others suggest that ALDH activity mediates stemness in endometrial cancer, but while aldehyde dehydrogenase 1 (ALDH1) has been suggested as a putative cancer stem cell marker in several cancer types, its clinical and prognostic value in endometrial cancer remains debated. The aim of this study was to investigate the clinical value of ALDH1 expression in endometrial hyperplasia and to determine its ability to predict progression to endometrial cancer. Interrogation of the TCGA database revealed upregulation of several isoforms in endometrial cancer, of which the ALDH1 isoforms collectively constituted the largest group. To translate its expression, a tissue microarray was previously constructed which contained a wide sampling of benign and malignant endometrial samples. The array contained a metachronous cohort of samples from individuals who either developed or did not develop endometrial cancer. Immunohistochemical staining was used to determine the intensity and frequency of ALDH1 expression. While benign proliferative and secretory endometrium showed very low levels of ALDH1, slightly higher expression was observed within the stratum basalis. In disease progression, cytoplasmic ALDH1 expression showed a step-wise increase between endometrial hyperplasia, atypical hyperplasia, and endometrial cancer. ALDH1 was also shown to be an early predictor of EC development, suggesting that it can serve as an independent prognostic indicator of patients with endometrial hyperplasia with or without atypia who would progress to cancer (p=0.012).
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页数:11
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