We have assayed both estrogen and androgen receptors in hepatocellular carcinomas, in the surrounding noncancerous liver tissue, and in normal liver tissue. Estrogen receptors (ERs) were detected in 5 out of 22 HCC tissues, 14 out of 22 surrounding noncancerous tissues, and in 5 out of 6 normal liver tissues. Androgen receptors (Ars) were detected in 4 out of 21 HCC tissues, in 7 out of 21 surrounding noncancerous tissues, and in 2 out of 5 normal liver tissues. These results suggest that the pathogenesis of some HCC may be dependent on estrogen or androgen. Hence, it may be beneficial to provide hormonal therapy for HCC, especially in cases that show high concentrations of ER and/or AR.
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Cell
January 2025
Key Laboratory Experimental Teratology of the Ministry of Education, New Cornerstone Science Laboratory, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, and Advanced Medical Research Institute, NHC Key Laboratory of Otorhinolaryngology, Qilu hospital, Cheeloo College of Medicine, Shandong University, Jinan 250012, China; Department of Physiology and Pathophysiology, School of Basic Medical Sciences, State Key Laboratory of Vascular Homeostasis and Remodeling, Beijing Key Laboratory of Cardiovascular Receptors Research, Peking University, Beijing 100191, China. Electronic address:
Androgens, such as 5α-dihydrotestosterone (5α-DHT), regulate numerous functions by binding to nuclear androgen receptors (ARs) and potential unknown membrane receptors. Here, we report that the androgen 5α-DHT activates membrane receptor GPR133 in muscle cells, thereby increasing intracellular cyclic AMP (cAMP) levels and enhancing muscle strength. Further cryoelectron microscopy (cryo-EM) structural analysis of GPR133-Gs in complex with 5α-DHT or its derivative methenolone (MET) reveals the structural basis for androgen recognition.
View Article and Find Full Text PDFJ Hazard Mater
January 2025
SKL-ESPC and BIC-ESAT, College of Environmental Sciences and Engineering, Peking University, Beijing, China. Electronic address:
Minimal study focused on the association between mixed pollutants in atmospheric particulate matter (PM) and their reproductive health risks. Utilizing a novel quantitative structure-activity relationship (QSAR) integrated machine learning algorithms, we evaluated the mixed reproductive health risks associated with phthalates (PAEs) and organophosphates (OPEs) exposure by assessing the affinities of these compounds binding to estrogen receptors (ER) and androgen receptors (AR). The mixed toxicity equivalent factor (TEF) and mixed toxicity equivalent quantity (TEQ) by the QSAR model were all smaller than the sum TEF and TEQ of individual PAEs and OPEs, which may be due to the antagonistic effect of PAEs and OPEs monomers on reproductive toxicity.
View Article and Find Full Text PDFFASEB J
January 2025
Prostate Cancer/Genitourologic Program, Oncology, The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.
Among the known nuclear exportins, CRM1 is the most studied prototype. Dysregulation of CRM1 occurs in many cancers, hence, understanding the role of CRM1 in cancer can help in developing synergistic therapeutics. The study investigates how CRM1 affects prostate cancer growth and survival.
View Article and Find Full Text PDFEur J Pharmacol
January 2025
School of Biomedical Sciences, Faculty of Health, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia; Translational Research Institute, Queensland University of Technology, Brisbane, Australia; Centre for Genomics and Personalised Health, Queensland University of Technology, Brisbane, Queensland, Australia. Electronic address:
Pyruvate dehydrogenase kinase-1 (PDK1) plays a crucial role in cancer cell metabolism by regulating the glycolytic pathway. Although, inhibitors targeting PDK1 have been effective in inhibiting glycolysis in multiple cancers, their lack of selectivity leading to off-target effects limit their therapeutic benefit. Herein, we investigated the inhibitory potential of six PDK1 inhibitors on cellular proliferation, migration, and invasion of androgen-sensitive LNCaP and androgen-negative PC-3 prostate cancer cells.
View Article and Find Full Text PDFChemosphere
January 2025
Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Instituto de Investigaciones en Ciencias de La Salud (INICSA), Córdoba, Argentina; Universidad Nacional de Córdoba, Facultad de Ciencias Médicas, Centro de Microscopía Electrónica. Córdoba, Argentina. Electronic address:
DEHP is a prevalent phthalate with wide industrial applications and well-documented endocrine-disrupting effects, including the potential disruption of AR signaling in different tissues. The present study aimed to investigate the effects of gestational and lactational exposure to environmentally relevant DEHP concentrations on AR expression and subcellular localization in the pituitary gland, the master endocrine organ, with a focus on gonadotroph cells by in vivo and in vitro approaches. After DEHP exposure during gestation and lactation, a sex-specific modulation was detected in AR-positive pituitary cells and AR protein expression as assessed through flow cytometry and western blot.
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