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Using the E1A Minigene Tool to Study mRNA Splicing Changes

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Published on: April 22, 2021

SVEP1 expression is regulated in estrogen-dependent manner.

I Shur¹, E Zemer-Tov, R Socher

¹Department of Cell and Developmental Biology, Sackler School of Medicine, Tel-Aviv University, Tel-Aviv, Israel.

Journal of Cellular Physiology

|December 2, 2006

Summary

The study shows that estrogen regulates the SVEP1 protein in bone cells and breast cancer cells. SVEP1 may be a biomarker for understanding how estrogen affects cell interactions in bone microenvironments.

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Area of Science:

Molecular Biology
Endocrinology
Oncology

Background:

SVEP1 protein has domains similar to selectin superfamily molecules.
Previous studies confirmed SVEP1 expression in osteogenic cells.
This study investigates the regulation of SVEP1 by 17beta-estradiol (17betaE2).

Purpose of the Study:

To investigate the role of 17betaE2 in regulating SVEP1 expression in osteoblasts and breast carcinoma cells.
To explore the potential of SVEP1 as a biomarker in estrogen-modulated cellular microenvironments.

Main Methods:

In vivo and in vitro studies using sham-operated and ovariectomized (OVX) rats.
17betaE2 treatment of cultured osteoblasts and breast carcinoma (BC) cell lines.
Immunohistochemistry and Fluorescence-Activated Cell Sorting (FACS) for SVEP1 detection.
Chromatin Immunoprecipitation (ChIP) assay to analyze estrogen receptor (ER) binding to the SVEP1 promoter.

Main Results:

SVEP1 expression was observed in bone marrow cells of sham-operated rats but not in OVX rats.
17betaE2 treatment significantly increased SVEP1 levels in cultured osteoblasts.
SVEP1 was detected in various breast carcinoma cell lines.
Estrogen receptor binding to the SVEP1 promoter was affected by 17betaE2 and ICI 182,780, regulating SVEP1 mRNA and protein levels in BC cells.

Conclusions:

Estrogen plays a crucial role in regulating SVEP1 expression in both bone and breast cancer cells.
SVEP1 may serve as a valuable biomarker for investigating cellular interactions within estrogen-influenced microenvironments, particularly in bone metastasis.