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Estrogens drive the endoplasmic reticulum-associated degradation and promote proto-oncogene c-Myc expression in prostate cancer cells by androgen receptor/estrogen receptor signaling

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dc.creator ERZURUMLU, Yalçın
dc.creator Aydogdu, Esra
dc.creator Dogan, Hatice Kubra
dc.creator ÇATAKLI, Deniz
dc.creator MUHAMMED, Muhammed Tılahun
dc.date 2023-09-01T00:00:00Z
dc.date.accessioned 2025-02-25T10:18:10Z
dc.date.available 2025-02-25T10:18:10Z
dc.identifier 1e888078-437b-4b0c-9e11-6329ab9dd2b1
dc.identifier 10.1007/s12079-022-00720-z
dc.identifier https://avesis.sdu.edu.tr/publication/details/1e888078-437b-4b0c-9e11-6329ab9dd2b1/oai
dc.identifier.uri http://acikerisim.sdu.edu.tr/xmlui/handle/123456789/98992
dc.description © 2023, The International CCN Society.The tumorigenic properties of prostate cancer are regulated by advanced hormonal regulation-mediated complex molecular signals. Therefore, characterizing the regulation of these signal transduction systems is crucial for understanding prostate cancer biology. Recent studies have shown that endoplasmic reticulum (ER)-localized protein quality control mechanisms, including ER-associated degradation (ERAD) and unfolded protein response (UPR) signaling contribute to prostate carcinogenesis and to the development of drug resistance. It has also been determined that these systems are tightly regulated by androgens. However, the role of estrogenic signaling in prostate cancer and its effects on protein quality control mechanisms is not fully understood. Herein, we investigated the regulatory effects of estrogens on ERAD and UPR and their impacts on prostate carcinogenesis. We found that estrogens strongly regulated the ERAD components and IRE1⍺ branch of UPR by Er⍺/β/AR axis. Besides, estrogenic signaling rigorously regulated the tumorigenicity of prostate cancer cells by promoting c-Myc expression and epithelial-mesenchymal transition (EMT). Moreover, estrogenic signal blockage significantly decreased the tumorigenic features of prostate cancer cells. Additionally, simultaneous inhibition of androgenic/estrogenic signals more efficiently inhibited tumorigenicity of prostate cancer cells, including proliferation, migration, invasion and colonial growth. Furthermore, computational-based molecular docking, molecular dynamics simulations and MMPBSA calculations supported the estrogenic stimulation of AR. Present findings suggested that ERAD components and IRE1⍺ signaling are tightly regulated by estrogen-stimulated AR and Er⍺/β. Our data suggest that treatment approaches targeting the co-inhibition of androgenic/estrogenic signals may pave the way for new treatment approaches to be developed for prostate cancer. Graphical abstract: The present model of the impact of estrogens on ERAD and UPR signaling in androgen-sensitive prostate cancer cells.[Figure not available: see fulltext.]
dc.language eng
dc.rights info:eu-repo/semantics/closedAccess
dc.title Estrogens drive the endoplasmic reticulum-associated degradation and promote proto-oncogene c-Myc expression in prostate cancer cells by androgen receptor/estrogen receptor signaling
dc.type info:eu-repo/semantics/article


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