AI Article Synopsis
- Hormone replacement therapy is commonly used for postmenopausal symptoms but comes with risks of breast and endometrial cancers.
- This study evaluated the plant compound mimosine's effects using MCF-7 cells, focusing on its potential as a safer alternative to estrogen therapy.
- Mimosine showed significant cellular viability and proliferation, with strong binding activity to the estrogen receptor, indicating it may possess estrogen-like effects without the same risks as traditional hormone replacement therapies.
Article Abstract
Hormone replacement therapy has been a conventional treatment for postmenopausal symptoms in women. However, it has potential risks of breast and endometrial cancers. The aim of this study was to evaluate the oestrogenicity of a plant-based compound, mimosine, in MCF-7 cells by in silico model. Cell viability and proliferation, ERα-SRC1 coactivator activity and expression of specific ERα-dependent marker TFF1 and PGR genes were evaluated. Binding modes of 17β-oestradiol and mimosine at the ERα ligand binding domain were compared using docking and molecular dynamics simulation experiments followed by binding interaction free energy calculation with molecular mechanics/Poisson-Boltzmann surface area. Mimosine showed increased cellular viability (64,450 cells/ml) at 0.1 μM with significant cell proliferation (120.5%) compared to 17β-oestradiol (135.2%). ER antagonist tamoxifen significantly reduced proliferative activity mediated by mimosine (49.9%). Mimosine at 1 μM showed the highest ERα binding activity through increased SRC1 recruitment at 186.9%. It expressed TFF1 (11.1-fold at 0.1 μM) and PGR (13.9-fold at 0.01 μM) genes. ERα-mimosine binding energy was -49.9 kJ/mol, and it interacted with Thr347, Gly521 and His524 of ERα-LBD. The results suggested that mimosine has oestrogenic activity.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1111/cbdd.13404 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
G-protein-coupled estrogen receptor 30 regulation of signaling downstream of protein kinase Cε mediates sex dimorphism in hyaluronan-induced antihyperalgesia.
Pain
October 2024
Department of Oral and Maxillofacial Surgery, UCSF Pain and Addiction Research Center, University of California at San Francisco, San Francisco, California.
High molecular weight hyaluronan (HMWH) inhibits hyperalgesia induced by diverse pronociceptive inflammatory mediators and their second messengers, in rats of both sexes. However, the hyperalgesia induced by ligands at 3 pattern recognition receptors, lipopolysaccharide (a toll-like receptor 4 agonist), lipoteichoic acid (a toll-like receptor 2/6 agonist), and nigericin (a NOD-like receptor family, pyrin domain containing 3 activator), and oxaliplatin and paclitaxel chemotherapy-induced peripheral neuropathy are only attenuated in males. After gonadectomy or intrathecal administration of an antisense to G-protein-coupled estrogen receptor 30 (GPER) mRNA, HMWH produces antihyperalgesia in females.
View Article and Find Full Text PDFOmics-based Identification of the Broader Effects of 2-hydroxyisoflavanone Synthase Gene Editing on a Gene Regulatory Network Beyond Isoflavonoid Loss in Soybean Hairy Roots.
Plant Cell Physiol
December 2024
RIKEN Center for Sustainable Resource Science, Yokohama 230-0045, Japan.
Soybean (Glycine max) is a leguminous crop cultivated worldwide that accumulates high levels of isoflavones. Although previous research has often focused on increasing the soybean isoflavone content because of the estrogen-like activity of dietary soy in humans, the rapidly increasing demand for soybean as a plant-based meat substitute has raised concerns about excessive isoflavone intake. Therefore, the production of isoflavone-free soybean has been anticipated.
View Article and Find Full Text PDFDrug Development.
Alzheimers Dement
December 2024
B.S.A. College of Engineering and Technology, Mathura, Uttar Pradesh, India.
Background: Cognitive dysfunction emerges as a manifestation of reduced estrogen levels following ovariectomy in an individual. However, the conventional use of estrogen replacement therapy could increase the risk of breast cancer and thromboembolism. Icariin is a natural compound that has been reported to be a neuroprotective agent against dementia.
View Article and Find Full Text PDFDrug Development.
Alzheimers Dement
December 2024
Division of Neurodegenerative Disorders, St. Boniface Hospital Albrechtsen Research Centre, Winnipeg, MB, Canada.
Background: Alzheimer's disease (AD) is a neurodegenerative disorder primarily associated with aging, but manifests as a complex interplay of multiple factors. Decline in sex-hormones, particularly 17-beta estradiol, is linked to the aging process. The risk for onset of AD significantly increases with aging and loss of estradiol.
View Article and Find Full Text PDFReal-world effectiveness of intravenous belimumab in adults with systemic lupus erythematosus: results of the observational OBSErve study in the Russian Federation.
BMC Rheumatol
January 2025
GSK Saudi Arabia, Value Evidence and Outcomes, Jeddah, Saudi Arabia.
Background: The real-world effectiveness of intravenous (IV) belimumab in treating systemic lupus erythematosus (SLE) has been demonstrated in various countries through the OBSErve (evaluation Of use of Belimumab in clinical practice SEttings) program. Here we describe the clinical effectiveness of IV belimumab for treating SLE in real-world clinical practice in the Russian Federation.
Methods: In the retrospective, observational OBSErve Russia study (GSK Study 215349), eligible physicians enrolled adults with SLE receiving IV belimumab as part of their standard care.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!