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Evaluation of quantitative polymerase chain reaction markers for the detection of breast cancer cells in ovarian tissue stored for fertility preservation.

Abstract：

OBJECTIVE:To develop molecular tools increasing the sensitivity of breast cancer micrometastases detection within ovarian tissue cryopreserved for fertility preservation. DESIGN:Expression of breast markers was evaluated by quantitative polymerase chain reaction in ovarian tissue from patients with benign or cancerous diseases. Suspected tissues were long-term xenografted into mice. SETTING:Academic research institute. PATIENT(S):Patients undergoing a fertility preservation procedure. INTERVENTION(S):Ovarian tissue was processed for RNA extraction and quantitative polymerase chain reaction analysis. Cryopreserved ovarian cortex from patients with breast cancer or benign disease was grafted for 6 months into severe combined immunodeficiency mice. MAIN OUTCOMES MEASURE(S):Predictive values of mammaglobin 1 (MGB-1), gross cystic disease fluid protein-15 (GCDFP-15), small breast epithelial mucine (SBEM), and mammaglobin 2 (MGB-2) to detect breast cancer cells in ovarian tissue, and the potential development of cancerous disease after xenograft of ovarian cortex from breast cancer patients. RESULT(S):MGB-1 and GCDFP-15 presented the highest predictive values to detect breast cancer micrometastases in the ovarian cortex, with an efficiency reaching 100% and 77%, respectively. The MGB-2 assay resulted in a high false-positive rate (47%) in the ovarian cortex but could be used to detect breast cancer cells in ovarian medulla. MGB-1 was detected in three of five ovarian cortex samples from early-stage breast cancer patients but not in the ovarian tissue from advanced breast cancer patients (none of 10). None of the mice grafted with ovarian tissue expressing these markers developed cancerous disease. CONCLUSION(S):MGB-1, GCDFP-15, and MGB-2 can serve as molecular markers for the detection of breast cancer micrometastases within the ovarian tissue of breast cancer patients. However, the clinical relevance of such a highly sensitive assay must be further investigated.

journal_name

Fertil Steril

journal_title

Fertility and sterility

authors

Bockstaele L,Boulenouar S,Van Den Steen G,Dechène J,Tsepelidis S,Craciun L,Noël JC,Demeestere I

doi

10.1016/j.fertnstert.2015.04.036

subject

Has Abstract

pub_date

2015-08-01 00:00:00

pages

410-7.e4

issue

eissn

0015-0282

issn

1556-5653

pii

S0015-0282(15)00310-6

journal_volume

104

pub_type

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Evaluation of quantitative polymerase chain reaction markers for the detection of breast cancer cells in ovarian tissue stored for fertility preservation.