» Articles » PMID: 20028757

Aldehyde Dehydrogenase 1-positive Cancer Stem Cells Mediate Metastasis and Poor Clinical Outcome in Inflammatory Breast Cancer

Abstract

Purpose: To examine the role of cancer stem cells (CSC) in mediating metastasis in inflammatory breast cancer (IBC) and the association of these cells with patient outcome in this aggressive type of breast cancer.

Experimental Design: CSCs were isolated from SUM149 and MARY-X, an IBC cell line and primary xenograft, by virtue of increased aldehyde dehydrogenase (ALDH) activity as assessed by the ALDEFLUOR assay. Invasion and metastasis of CSC populations were assessed by in vitro and mouse xenograft assays. Expression of ALDH1 was determined on a retrospective series of 109 IBC patients and this was correlated with histoclinical data. All statistical tests were two sided. Log-rank tests using Kaplan-Meier analysis were used to determine the correlation of ALDH1 expression with development of metastasis and patient outcome.

Results: Both in vitro and xenograft assays showed that invasion and metastasis in IBC are mediated by a cellular component that displays ALDH activity. Furthermore, expression of ALDH1 in IBC was an independent predictive factor for early metastasis and decreased survival in this patient population.

Conclusions: These results suggest that the metastatic, aggressive behavior of IBC may be mediated by a CSC component that displays ALDH enzymatic activity. ALDH1 expression represents the first independent prognostic marker to predict metastasis and poor patient outcome in IBC. The results illustrate how stem cell research can translate into clinical practice in the IBC field.

Citing Articles

Circular RNAs in cancer stem cells: Insights into their roles and mechanisms (Review).

Yang L, Yi Y, Mei Z, Huang D, Tang S, Hu L Int J Mol Med. 2025; 55(3).

PMID: 39930823 PMC: 11781527. DOI: 10.3892/ijmm.2025.5491.


Unveiling the link between chronic inflammation and cancer.

Tripathi S, Sharma Y, Kumar D Metabol Open. 2025; 25:100347.

PMID: 39876904 PMC: 11772974. DOI: 10.1016/j.metop.2025.100347.


Clinical Proteomics Reveals Vulnerabilities in Noninvasive Breast Ductal Carcinoma and Drives Personalized Treatment Strategies.

Mitsa G, Florianova L, Lafleur J, Aguilar-Mahecha A, Zahedi R, del Rincon S Cancer Res Commun. 2024; 5(1):138-149.

PMID: 39723668 PMC: 11755405. DOI: 10.1158/2767-9764.CRC-24-0287.


Telomerase inhibition in breast cancer and breast cancer stem cells: a brief review.

Yildirim I, Biray Avci C Med Oncol. 2024; 42(1):14.

PMID: 39585534 DOI: 10.1007/s12032-024-02562-8.


Tumor Heterogeneity Shapes Survival Dynamics in Drug-Treated Cells, Revealing Size-Drifting Subpopulations.

Vangala V, Chen Y, Dinavahi S, Gowda K, Lone N, Herlyn M ACS Pharmacol Transl Sci. 2024; 7(11):3573-3584.

PMID: 39539277 PMC: 11555517. DOI: 10.1021/acsptsci.4c00453.


References
1.
Al-Hajj M, Wicha M, Benito-Hernandez A, Morrison S, Clarke M . Prospective identification of tumorigenic breast cancer cells. Proc Natl Acad Sci U S A. 2003; 100(7):3983-8. PMC: 153034. DOI: 10.1073/pnas.0530291100. View

2.
Bonnet D, Dick J . Human acute myeloid leukemia is organized as a hierarchy that originates from a primitive hematopoietic cell. Nat Med. 1997; 3(7):730-7. DOI: 10.1038/nm0797-730. View

3.
Li F, Tiede B, Massague J, Kang Y . Beyond tumorigenesis: cancer stem cells in metastasis. Cell Res. 2006; 17(1):3-14. DOI: 10.1038/sj.cr.7310118. View

4.
Ginestier C, Hur M, Charafe-Jauffret E, Monville F, Dutcher J, Brown M . ALDH1 is a marker of normal and malignant human mammary stem cells and a predictor of poor clinical outcome. Cell Stem Cell. 2008; 1(5):555-67. PMC: 2423808. DOI: 10.1016/j.stem.2007.08.014. View

5.
McCarthy N, Yang X, Linnoila I, Merino M, Hewitt S, Parr A . Microvessel density, expression of estrogen receptor alpha, MIB-1, p53, and c-erbB-2 in inflammatory breast cancer. Clin Cancer Res. 2002; 8(12):3857-62. View