Results 51 to 60 of about 785,146 (253)

The steroid hormone estriol (E3) regulates epigenetic programming of fetal mouse brain and reproductive tract

open access: yesBMC Biology, 2022
Background Estriol (E3) is a steroid hormone formed only during pregnancy in primates including humans. Although E3 is synthesized at large amounts through a complex pathway involving the fetus and placenta, it is not required for the maintenance of ...
Yuping Zhou   +13 more
doaj   +1 more source

3D model of amphioxus steroid receptor complexed with estradiol [PDF]

open access: yes, 2009
The origins of signaling by vertebrate steroids are not fully understood. An important advance was the report that an estrogen-binding steroid receptor [SR] is present in amphioxus, a basal chordate with a similar body plan as vertebrates.
Michael E. Baker, David J. Chang
core  

Expression Profiles of Estrogen-Regulated MicroRNAs in Breast Cancer Cells

open access: yes, 2016
Molecular signaling through both estrogen and microRNAs are critical for breast cancer development and growth. The activity of estrogen is mediated by transcription factors, the estrogen receptors. Here we describe a method for robust characterization of
Cecilia Williams   +5 more
core   +1 more source

Metastatic niche shaped by host factors influences disseminated cancer cell fate

open access: yesFEBS Letters, EarlyView.
Metastasis is shaped not only by cancer cells but also by the environments they encounter. This review explores how factors such as aging, diet, the microbiome, lifestyle, and environmental exposures remodel organ‐specific niches in the lung, liver, bone, and brain, influencing where metastatic cells survive, remain dormant, or grow, and ultimately ...
Gwennan Delyth Ward   +2 more
wiley   +1 more source

Support Vector Machine classifier for estrogen receptor positive and negative early-onset breast cancer.

open access: yesPLoS ONE, 2013
Two major breast cancer sub-types are defined by the expression of estrogen receptors on tumour cells. Cancers with large numbers of receptors are termed estrogen receptor positive and those with few are estrogen receptor negative.
Rosanna Upstill-Goddard   +6 more
doaj   +1 more source

Metastasis on pause: How dormant tumor cells stay hidden within the tumor microenvironment and evade immune surveillance

open access: yesMolecular Oncology, EarlyView.
Dormant cancer cells can hide in distant organs for years, evading treatment and the immune system. This review highlights how signals from the surrounding tissue and immune environment keep these cells inactive or trigger their reawakening. Understanding these mechanisms may help develop therapies to eliminate or control dormant cells and prevent ...
Kanishka Tiwary   +1 more
wiley   +1 more source

Origin and diversification of steroids: Co-evolution of enzymes and nuclear receptors [PDF]

open access: yes, 2010
Recent sequencing of amphioxus and sea urchin genomes has provided important data for understanding the origins of enzymes that synthesize adrenal and sex steroids and the receptors that mediate physiological response to these vertebrate steroids ...
Michael E. Baker
core  

Oncogenic DMTF1β promotes cancer cell motility by regulating autophagy through ULK1 stabilization

open access: yesMolecular Oncology, EarlyView.
In the current study, we demonstrate that the oncogene DMTF1β regulates ULK1 stability by reducing its proteasomal degradation in cancer cells. This stabilization enables ULK1 to induce autophagy, which in turn facilitates cancer cell migration. Consequently, reduced DMTF1β levels lead to decreased autophagy and impaired cancer cell migration.
Jun Xu   +13 more
wiley   +1 more source

Unravelling the mechanism of differential biological responses induced by food-borne xeno- and phyto-estrogenic compounds [PDF]

open access: yes, 2010
The multiple actions of estradiol and other estrogenic compounds in mammalian physiology are brought about, on a molecular level, as a result of complex signalling pathways, and mediated by at least two receptors namely estrogen receptor (ER) α and ERβ.
Sotoca Covaleda, A.M.
core  

A variety of environmentally persistent chemicals, including some phthalate plasticizers, are weakly estrogenic [PDF]

open access: yes, 1995
Sewage, a complex mixture of organic and inorganic chemicals, is considered to be a major source of environmental pollution. A random screen of 20 organic man-made chemicals present in liquid effluents revealed that half appeared able to interact with ...
Sumpter, JP   +14 more
core   +1 more source

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