Sylvia C. Hewitt
YOU?
Author Swipe
View article: Transcriptional coregulator ZMIZ1 modulates estrogen responses that are essential for healthy endometrial function
Transcriptional coregulator ZMIZ1 modulates estrogen responses that are essential for healthy endometrial function Open
Estrogen is a critical regulator of endometrial health. Aberrant estrogen stimulation can result in infertility, endometrial cancer, and endometriosis. Here, we identified Zinc Finger MIZ-Type Containing 1 (Zmiz1) as a coregulator of uteri…
View article: Muscle metabolic resilience and enhanced exercise adaptation by Esr1-induced remodeling of mitochondrial cristae-nucleoid architecture in males
Muscle metabolic resilience and enhanced exercise adaptation by Esr1-induced remodeling of mitochondrial cristae-nucleoid architecture in males Open
View article: From cup to dish: how to make and use endometrial organoid and stromal cultures derived from menstrual fluid
From cup to dish: how to make and use endometrial organoid and stromal cultures derived from menstrual fluid Open
Diseases impacting the female reproductive tract pose a critical health concern. The establishment of in vitro models to study primary endometrial cells is crucial to understanding the mechanisms that contribute to normal endometrial funct…
View article: Chromatin architectural factor <scp>CTCF</scp> is essential for progesterone‐dependent uterine maturation
Chromatin architectural factor <span>CTCF</span> is essential for progesterone‐dependent uterine maturation Open
Receptors for estrogen and progesterone frequently interact, via Cohesin/CTCF loop extrusion, at enhancers distal from regulated genes. Loss‐of‐function CTCF mutation in >20% of human endometrial tumors indicates its importance in uterine …
View article: The Estrogen Receptor α Cistrome in Human Endometrium and Epithelial Organoids
The Estrogen Receptor α Cistrome in Human Endometrium and Epithelial Organoids Open
Endometrial health is affected by molecular processes that underlie estrogen responses. We assessed estrogen regulation of endometrial function by integrating the estrogen receptor α (ESR1) cistromes and transcriptomes of endometrial biops…
View article: A Novel Mouse Model to Analyze Non-Genomic ERα Physiological Actions
A Novel Mouse Model to Analyze Non-Genomic ERα Physiological Actions Open
Nongenomic effects of estrogen receptor α (ERα) signaling have been described for decades. Several distinct animal models have been generated previously to analyze the nongenomic ERα signaling (eg, membrane-only ER, and ERαC451A). However,…
View article: Progesterone Signaling in Endometrial Epithelial Organoids
Progesterone Signaling in Endometrial Epithelial Organoids Open
For pregnancy to be established, uterine cells respond to the ovarian hormones, estrogen, and progesterone, via their nuclear receptors, the estrogen receptor (ESR1) and progesterone receptor (PGR). ESR1 and PGR regulate genes by binding c…
View article: The estrogen receptor α cistrome in human endometrium and epithelial organoids
The estrogen receptor α cistrome in human endometrium and epithelial organoids Open
Context Endometrial health is impacted by molecular processes that underlie estrogen responses. Objective To define estrogen regulation of endometrial function by integrating the estrogen receptor alpha (ESR1) cistrome and transcriptome of…
View article: Progesterone Signaling in Endometrial Epithelial Organoids
Progesterone Signaling in Endometrial Epithelial Organoids Open
For pregnancy to be established, uterine cells respond to the ovarian hormones, estrogen, and progesterone, via their nuclear receptors, the estrogen receptor (ESR1) and progesterone receptor (PGR). ESR1 and PGR regulate genes by binding c…
View article: Cell‐type specific analysis of physiological action of estrogen in mouse oviducts
Cell‐type specific analysis of physiological action of estrogen in mouse oviducts Open
One of the endogenous estrogens, 17β‐estradiol (E 2 ) is a female steroid hormone secreted from the ovary. It is well established that E 2 causes biochemical and histological changes in the uterus. However, it is not completely understood …
View article: Cell-type specific analysis of physiological action of estrogen in mouse oviducts
Cell-type specific analysis of physiological action of estrogen in mouse oviducts Open
One of the endogenous estrogens, 17β-estradiol (E 2 ) is a female steroid hormone secreted from the ovary. It is well established that E 2 causes biochemical and histological changes in the uterus. The oviduct response to E 2 is virtually …
View article: Estrogen receptor α controls metabolism in white and brown adipocytes by regulating <i>Polg1</i> and mitochondrial remodeling
Estrogen receptor α controls metabolism in white and brown adipocytes by regulating <i>Polg1</i> and mitochondrial remodeling Open
ERα gene expression is heritable in humans and prevents obesity in mice by improving mitochondrial function via adipocyte Polg1 expression.
View article: Peri- and Postpubertal Estrogen Exposures of Female Mice Optimize Uterine Responses Later in Life
Peri- and Postpubertal Estrogen Exposures of Female Mice Optimize Uterine Responses Later in Life Open
At birth, all female mice, including those that either lack estrogen receptor α (ERα-knockout) or that express mutated forms of ERα (AF2ERKI), have a hypoplastic uterus. However, uterine growth and development that normally accompany puber…
View article: Estrogen receptor α (ERα)-binding super-enhancers drive key mediators that control uterine estrogen responses in mice
Estrogen receptor α (ERα)-binding super-enhancers drive key mediators that control uterine estrogen responses in mice Open
Estrogen receptor α (ERα) modulates gene expression by interacting with chromatin regions that are frequently distal from the promoters of estrogen-regulated genes. Active chromatin-enriched "super-enhancer" (SE) regions, mainly observed i…
View article: Oviductal Retention of Embryos in Female Mice Lacking Estrogen Receptor α in the Isthmus and the Uterus
Oviductal Retention of Embryos in Female Mice Lacking Estrogen Receptor α in the Isthmus and the Uterus Open
Estrogen receptor α (ESR1; encoded by Esr1) is a crucial nuclear transcription factor for female reproduction and is expressed throughout the female reproductive tract. To assess the function of ESR1 in reproductive tissues without confoun…
View article: A distal super enhancer mediates estrogen-dependent mouse uterine–specific gene transcription of Igf1 (insulin-like growth factor 1)
A distal super enhancer mediates estrogen-dependent mouse uterine–specific gene transcription of Igf1 (insulin-like growth factor 1) Open
View article: Decoding the Inversion Symmetry Underlying Transcription Factor DNA-Binding Specificity and Functionality in the Genome
Decoding the Inversion Symmetry Underlying Transcription Factor DNA-Binding Specificity and Functionality in the Genome Open
View article: Negative elongation factor is essential for endometrial function
Negative elongation factor is essential for endometrial function Open
Pausing of RNA polymerase II (Pol II) during early transcription, mediated by the negative elongation factor (NELF) complex, allows cells to coordinate and appropriately respond to signals by modulating the rate of transcriptional pause re…
View article: Estrogens Promote Misfolded Proinsulin Degradation to Protect Insulin Production and Delay Diabetes
Estrogens Promote Misfolded Proinsulin Degradation to Protect Insulin Production and Delay Diabetes Open
View article: Estrogen Receptors: New Directions in the New Millennium
Estrogen Receptors: New Directions in the New Millennium Open
Nineteen years have passed since our previous review in this journal in 1999 regarding estrogen receptors. At that time, we described the current assessments of the physiological activities of estrogen and estrogen receptors. Since that ti…
View article: Estrogen receptor α protects pancreatic β-cells from apoptosis by preserving mitochondrial function and suppressing endoplasmic reticulum stress
Estrogen receptor α protects pancreatic β-cells from apoptosis by preserving mitochondrial function and suppressing endoplasmic reticulum stress Open
Estrogen receptor α (ERα) action plays an important role in pancreatic β-cell function and survival; thus, it is considered a potential therapeutic target for the treatment of type 2 diabetes in women. However, the mechanisms underlying th…
View article: Juxtacrine Activity of Estrogen Receptor α in Uterine Stromal Cells is Necessary for Estrogen-Induced Epithelial Cell Proliferation
Juxtacrine Activity of Estrogen Receptor α in Uterine Stromal Cells is Necessary for Estrogen-Induced Epithelial Cell Proliferation Open
View article: DNA Sequence Constraints Define Functionally Active Steroid Nuclear Receptor Binding Sites in Chromatin
DNA Sequence Constraints Define Functionally Active Steroid Nuclear Receptor Binding Sites in Chromatin Open
Gene regulatory programs are encoded in the sequence of the DNA. Since the completion of the Human Genome Project, millions of gene regulatory elements have been identified in the human genome. Understanding how each of those sites functio…
View article: Role of ERα in Mediating Female Uterine Transcriptional Responses to IGF1
Role of ERα in Mediating Female Uterine Transcriptional Responses to IGF1 Open
Estrogen (E2) signaling through its nuclear receptor, E2 receptor α (ERα) increases insulinlike growth factor 1 (IGF1) in the rodent uterus, which then initiates further signals via the IGF1 receptor. Directly administering IGF1 results in…
View article: Hormone signaling and fatty liver in females: analysis of estrogen receptor α mutant mice
Hormone signaling and fatty liver in females: analysis of estrogen receptor α mutant mice Open
View article: SCA-1 Labels a Subset of Estrogen-Responsive Bipotential Repopulating Cells within the CD24 + CD49f hi Mammary Stem Cell-Enriched Compartment
SCA-1 Labels a Subset of Estrogen-Responsive Bipotential Repopulating Cells within the CD24 + CD49f hi Mammary Stem Cell-Enriched Compartment Open
View article: Estrogen Hormone Biology
Estrogen Hormone Biology Open
View article: Skeletal muscle action of estrogen receptor α is critical for the maintenance of mitochondrial function and metabolic homeostasis in females
Skeletal muscle action of estrogen receptor α is critical for the maintenance of mitochondrial function and metabolic homeostasis in females Open
ERα action in skeletal muscle is involved in the preservation of mitochondrial health and insulin sensitivity in female mice and can serve as a defense against metabolic disease in women.
View article: Distinct functions and regulation of epithelial progesterone receptor in the mouse cervix, vagina, and uterus
Distinct functions and regulation of epithelial progesterone receptor in the mouse cervix, vagina, and uterus Open
While the function of progesterone receptor (PR) has been studied in the mouse vagina and uterus, its regulation and function in the cervix has not been described. We selectively deleted epithelial PR in the female reproductive tracts usin…
View article: Oviductal estrogen receptor α signaling prevents protease-mediated embryo death
Oviductal estrogen receptor α signaling prevents protease-mediated embryo death Open
Development of uterine endometrial receptivity for implantation is orchestrated by cyclic steroid hormone-mediated signals. It is unknown if these signals are necessary for oviduct function in supporting fertilization and preimplantation d…