Cited by 47Estrogen and related hormone effectsAdipose Tissue and MetabolismEffects and risks of endocrine disrupting chemicals

Expression and subcellular distribution of native estrogen receptor β in murine C2C12 cells and skeletal muscle tissue

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Milanesi, Lorena, Vasconsuelo, Andrea, de Boland, Ana Russo, Boland, Ricardo·2009·Steroids

Abstract

We have recently described the expression and intracellular localization of ER alpha in murine C2C12 cells and skeletal muscle tissue. In separate studies, a protective role of 17beta-estradiol against apoptosis exerted mainly at the mitochondrial level was also shown in the C2C12 muscle cell line. However, this functional evidence was in accordance with the participation of ER beta. We have then here investigated the expression and subcellular distribution of native ER beta in similar skeletal muscle cultured cells and tissue developed in vivo. ER beta was detected by immunoblotting using specific antibodies and ligand blot analysis after subcellular fractionation. Immunolocalization was confirmed using conventional and confocal microscopy. ER beta was found to a great extent in mitochondria and in lower amounts in the cytosolic fraction, differently to ER alpha which localizes in microsomes, cytosol, mitochondria, and also in the nucleus of muscle tissue. ER beta expression was also demonstrated by RT-PCR. Finally, the mitochondrial localization of native ER beta in C2C12 muscle cells was corroborated after transient transfection with specific ER beta siRNAs. These data raise the possibility that the antiapoptotic action of 17beta-estradiol in muscle cells may be related in part to a direct action of the hormone on mitochondria through ER beta.

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Crossref · 10.1016/j.steroids.2009.01.005

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  1. [21][21] Horvat A, Nikeziˇ ıc S, Petroviˇ ıc G, Kanazir DT. Binding of estradiol to synaptosomalmitochondria:physiologicalsignificance.Cell Mol Life Sci 2001;58:636-44. -
  2. [24][24] Solakidi S, Psarra MG, Sekeris CE. Differential subcellular distribution of estrogen receptor isoforms: localization of ER 𝛂 in the nucleoli and ER 𝛃 in the mitochondriaofhumanosteosarcomaSaOS-2andhepatocarcinomaHepG2cell lines. Biochim Biophys Acta 2005;1745:382-92. -
  3. [33][33] Demonacos CV, Karayanni N, Hatzoglou E, Tsiriyiotis C, Spandidos DA, Sekeris CE. Steroids 1996;61:226-32.

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Authors
Milanesi, L., Vasconsuelo, A., de Boland, A. R., & Boland, R.
Affiliations
Universidad Nacional del Sur (AR)
Corresponding author
Boland, Ricardo
Venue
Steroids
Publisher
Elsevier BV
Published
2009-06
Volume
74
Issue
6
Pages
489-497
ISSN
0039-128X (ISSN-L)
OpenAlex
W1968488064
Cited by
47
References
33
Citations by year
2026: 1 · 2024: 2 · 2023: 3 · 2021: 3 · 2020: 1 · 2019: 5 · 2018: 3 · 2017: 2 · 2016: 3 · 2015: 4 · 2014: 5 · 2013: 3 · 2012: 3
FWCI
2.33
Type
journal article
Language
en
Open access
Locations
  • Steroids (publishedVersion)
  • PubMed (publishedVersion)
  • CONICET Digital (CONICET) (publishedVersion, cc-by-nc-sa)
  • Conicet (submittedVersion, cc-by-nc-sa)
Funders
  • Consejo Nacional de Investigaciones Científicas y Técnicas
  • Agencia Nacional de Promoción Científica y Tecnológica (CONICET)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Estrogen and related hormone effects
  • Health Sciences › Medicine › Physiology › Adipose Tissue and Metabolism
  • Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Effects and risks of endocrine disrupting chemicals
Keywords
estrogen receptor beta, subcellular localization, mitochondrial localization, C2C12 muscle cells, skeletal muscle, estradiol, apoptosis, anti-apoptotic effects, estrogen receptor alpha, siRNA knockdown, immunolocalization
MeSH terms
Animals, Cell Line, Cytosol, Estradiol, Immunohistochemistry, Mitochondria, Radioligand Assay, Subcellular Fractions, Transfection, Tritium, Blotting, Western, Gene Expression, Muscle, Skeletal, Microscopy, Confocal, Reverse Transcriptase Polymerase Chain Reaction, Myoblasts, RNA, Small Interfering, Estrogen Receptor beta, Mice

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