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Related Concept Videos

Endocrine Signaling01:45

Endocrine Signaling

68.7K
Endocrine cells produce hormones to communicate with remote target cells found in other organs. The hormone reaches these distant areas using the circulatory system. This exposes the whole organism to the hormone but only those cells expressing hormone receptors or target cells are affected. Thus, endocrine signaling induces slow responses from its target cells but these effects also last longer.
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Structures of the Endocrine System00:59

Structures of the Endocrine System

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The intricate framework of the endocrine system encompasses a diverse array of glands, with their target tissues and organs strategically distributed throughout the body. Central to this network are the endocrine glands, specialized structures that lack ducts and release hormones directly into the interstitial fluid. Notably, the hypothalamus, a vital neuroendocrine organ situated in the brain, governs neural functions and serves as a potent source of hormonal regulation. Near the hypothalamus...
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An Overview of the Endocrine System01:10

An Overview of the Endocrine System

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The endocrine system, a complex network of glands, orchestrates physiological balance within the body through the production and secretion of hormones. These hormones are chemical messengers in intercellular communication, acting as conduits between the secretory cells and distant target sites. They traverse the circulatory system by being released into the extracellular fluid, and their impact is specific to cells possessing receptors for a particular hormone.
The endocrine system collaborates...
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Gap Junctions01:37

Gap Junctions

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Multicellular organisms employ a variety of ways for cells to communicate with each other. Gap junctions are specialized proteins that form pores between neighboring cells in animals, connecting the cytoplasm between the two, and allowing for the exchange of molecules and ions. They are found in a wide range of invertebrate and vertebrate species, mediate numerous functions including cell differentiation and development, and are associated with numerous human diseases, including cardiac and...
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Gap Junctions01:27

Gap Junctions

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The cytoplasm of adjacent animal cells can exchange small molecules, ions, and secondary messengers via the communication channels which form the gap junctions. These junctions comprise a few hundred to thousands of molecular channels, each made of two halves, called the connexon hemichannel. A connexon is a hexamer of six transmembrane connexin proteins, which assemble radially, thus forming a pore or channel in the center. One connexon hemichannel docks with a corresponding connexon on the...
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What is the Endocrine System?00:46

What is the Endocrine System?

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The endocrine system sends hormones—chemical signals—through the bloodstream to target cells—the cells the hormones selectively affect. These signals are produced in endocrine cells, secreted into the extracellular fluid, and then diffuse into the blood. Eventually, they diffuse out of the blood and bind to target cells which have specialized receptors to recognize the hormones.
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Correction: Sathiyanadan et al. Targeting Endothelial Connexin37 Reduces Angiogenesis and Decreases Tumor Growth. <i>Int. J. Mol. Sci.</i> 2022, <i>23</i>, 2930.

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Targeting Endothelial Connexin37 Reduces Angiogenesis and Decreases Tumor Growth.

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Endothelial Connexins in Developmental and Pathological Angiogenesis.

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Targeting connexin37 alters angiogenesis and arteriovenous differentiation in the developing mouse retina.

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Connexins and pannexins: from biology towards clinical targets.

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Related Experiment Video

Updated: Mar 6, 2026

Gap Junctional Intercellular Communication: A Functional Biomarker to Assess Adverse Effects of Toxicants and Toxins, and Health Benefits of Natural Products
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Gap junction proteins are key drivers of endocrine function.

Paolo Meda1

  • 1Department of Cell Physiology and Metabolism, University of Geneva Medical School, Switzerland.

Biochimica Et Biophysica Acta. Biomembranes
|March 13, 2017
PubMed
Summary

Connexins, proteins forming gap junctions, are crucial for endocrine gland function. Recent research highlights their role in pancreatic beta cells and renal cells, impacting diabetes and hypertension.

Keywords:
Cx36Cx40DiabetesHormonesHypertensionInsulinRenin

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Area of Science:

  • Cellular Biology
  • Endocrinology
  • Physiology

Background:

  • Secretory cells in exocrine and endocrine glands utilize connexins to form gap junctions, facilitating electrical and metabolic coupling.
  • Connexin signaling is increasingly recognized for its role in regulating secretory product biosynthesis, release, and cell survival.
  • Genetic studies reveal connexins' critical involvement in human gland function and endocrine disease pathogenesis.

Purpose of the Study:

  • To review recent advancements in understanding connexin signaling in secretory cells.
  • To focus on the roles of connexins in pancreatic beta cells (insulin production) and renal cells (renin production).
  • To connect connexin function to the development of diabetes, hypertension, and the metabolic syndrome.

Main Methods:

  • Review of recent scientific literature and genetic studies.
  • Analysis of experimental data from culture systems and animal models.
  • Focus on specific secretory cell types: pancreatic beta cells and renal cells.

Main Results:

  • Connexins are vital for the proper functioning of pancreatic beta cells and renal cells.
  • Dysregulation of connexin signaling is implicated in the pathogenesis of diabetes and hypertension.
  • Connexin pathways are central to understanding the global prevalence of the metabolic syndrome.

Conclusions:

  • Connexin signaling is a key determinant of human endocrine gland function.
  • Further research into connexins offers therapeutic targets for metabolic diseases.
  • Connexins play a fundamental role in maintaining metabolic homeostasis.