ArticleLupus2013
Estradiol differentially regulates calreticulin: a potential link with abnormal T cell function in systemic lupus erythematosus?
Article in Lupus, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
3 citing papers in PubMed, 6 citations in OpenAlex.
- Immunopathogenesis of Systemic Lupus Erythematosus: Interplay of Innate and Adaptive Immunity, Microbiome Dysbiosis, and Emerging Therapeutic Targets.Pathophysiology : the official journal of the International Society for Pathophysiology · 2025Review
- Role of Plasma Calreticulin in the Prediction of Severity in Septic Patients.Disease markers · 2019Article
- Sex Hormones in Acquired Immunity and Autoimmune Disease.Frontiers in immunology · 2018Review
Corrections and comments
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Authors and funding
4 authors at 3 institutions in 2 countries.
Funding
Abstract
objectiveSystemic lupus erythematosus (SLE) is an autoimmune disease that affects women nine times more often than men. The present study investigates estradiol-dependent control of the calcium-buffering protein, calreticulin, to gain further insight into the molecular basis of abnormal T cell signaling in SLE T cells.
methodsT cells were purified from blood samples obtained from healthy females and SLE patients. Calreticulin expression was quantified by real-time polymerase chain amplification. Calreticulin and estrogen receptor-α were co-precipitated and analyzed by Western blotting to determine if the proteins associate in T cells.
resultsCalreticulin expression increased (p = 0.034) in activated control T cells, while estradiol decreased (p = 0.044) calreticulin in resting T cells. Calreticulin expression decreased in activated SLE T cell samples and increased in approximately 50% of resting T cell samples. Plasma estradiol was similar (p > 0.05) among SLE patients and control volunteers. Estrogen receptor-α and calreticulin co-precipitated from nuclear and cytoplasmic T cell compartments.
conclusionsThe results indicate that estradiol tightly regulates calreticulin expression in normal human T cells, and the dynamics are different between activated and resting T cells. The absence of this tight regulation in SLE T cells could contribute to abnormal T cell function.
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