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Related Concept Videos

Adrenal Gland Disorders01:27

Adrenal Gland Disorders

Adrenal gland disorders manifest when the production of adrenal hormones deviates from the norm, resulting in either excessive or insufficient concentrations.
Adrenal insufficiency, characterized by insufficient cortisol and aldosterone production, leads to conditions like Addison's disease. This disorder, affecting the adrenal cortex, exhibits symptoms such as skin bronzing, dehydration, low blood pressure, fatigue, and weight loss. Congenital adrenal hyperplasia, a genetic ailment causing...
Hormones of the Adrenal Glands01:31

Hormones of the Adrenal Glands

Adrenal hormones play a pivotal role in maintaining the body's electrolyte balance and orchestrating responses to stress, showcasing the intricate functions of the adrenal cortex and medulla.
The adrenal cortex, a powerhouse of hormone synthesis, generates over two dozen corticosteroid hormones. The zona glomerulosa produces mineralocorticoids, exemplified by aldosterone, influencing the electrolyte composition of body fluids. The synthesis of glucocorticoids such as cortisol and corticosterone...
Anatomy of the Adrenal Glands01:17

Anatomy of the Adrenal Glands

The adrenal or supra-renal glands, situated above the kidneys and aligned with the twelfth rib, are paired pyramid-shaped structures crucial for the body's stress response. During stress, these glands secrete hormones vital for adaptive physiological reactions.
These glands possess a distinctive yellow tinge due to the stored cholesterol and fatty acids required for hormone synthesis. They are encased in a fibrous capsule and cushioned by fat.
The adrenal gland comprises two distinct regions...
TGF - β Signaling Pathway01:16

TGF - β Signaling Pathway

The TGF-β signaling pathway regulates cell growth, differentiation, adhesion, motility, and development. TGF-β ligands that induce TGF-β signaling are synthesized in their latent form. Several proteases or cell surface receptors such as integrins act upon the latent form, releasing the active ligand. There are three types of mammalian TGF-βs: (TGF-β1, TGF-β2, and TGF-β3) that bind as homodimers or heterodimers to TGF-β receptors. The TGF-β receptors are of three kinds RI, RII, and RIII. The RI...
Cushing Syndrome II: Pathophysiology01:19

Cushing Syndrome II: Pathophysiology

Cortisol production is normally governed by the hypothalamic–pituitary–adrenal (HPA) axis, which maintains hormonal balance through tightly regulated feedback mechanisms. Disruption of this regulatory system is central to the development of Cushing syndrome, whether the excess cortisol originates from external medications or internal pathology. Persistent cortisol elevation alters metabolism, immune function, and endocrine signaling, producing the characteristic clinical features of the...

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Related Experiment Video

Updated: May 28, 2026

Isolation, Fixation, and Immunofluorescence Imaging of Mouse Adrenal Glands
08:37

Isolation, Fixation, and Immunofluorescence Imaging of Mouse Adrenal Glands

Published on: October 2, 2018

SF-1 expression during adrenal development and tumourigenesis.

Jennifer R Gardiner1, Yuichi Shima, Ken-ichirou Morohashi

  • 1Division of Cancer Biology, Institute of Cancer Research, London SW36JB, UK.

Molecular and Cellular Endocrinology
|October 26, 2011
PubMed
Summary
This summary is machine-generated.

Steroidogenic factor 1 (SF-1) is crucial for adrenal and gonadal development. Its precise regulation involves transcription factors binding to enhancer elements, impacting development and potentially tumor formation.

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Cancer-Associated Fibroblasts from Mouse Mammary Tumors as Tools for Molecular and Computational Studies
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Area of Science:

  • Endocrinology
  • Developmental Biology
  • Molecular Genetics

Background:

  • Steroidogenic factor 1 (SF-1) is a key regulator of steroidogenesis, essential for adrenal and gonadal organ development.
  • Aberrant SF-1 expression levels lead to congenital adrenal and gonadal disorders, including defects and hyperplasia.
  • SF-1's role extends beyond development, with implications in adrenal tumorigenesis.

Purpose of the Study:

  • To elucidate the regulatory network controlling SF-1 expression during development.
  • To investigate the function of intronic enhancer elements in modulating SF-1 transcription.
  • To explore the link between developmental SF-1 dysregulation and postnatal consequences like adrenal tumors.

Main Methods:

  • Utilized transgenic mouse models to study SF-1 gene regulation.
  • Analyzed the binding of transcription factors to intronic enhancer elements and the basal promoter of the Sf-1 gene.
  • Investigated the role of SF-1 in the context of adrenal tumorigenesis.

Main Results:

  • Identified a network of transcription factors crucial for the stringent regulation of Sf-1 expression.
  • Demonstrated that these factors bind to both intronic enhancers and the basal promoter to modulate Sf-1 transcription in a tissue-specific manner.
  • Findings suggest that improper developmental regulation of SF-1 may contribute to postnatal conditions, including adrenal tumors.

Conclusions:

  • SF-1 expression is tightly controlled by a complex network of transcription factors acting on multiple regulatory elements.
  • This intricate regulation is vital for normal adrenal and gonadal development.
  • Dysregulation of SF-1 during development may have significant postnatal implications beyond congenital disorders.