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Related Concept Videos

The Extracellular Matrix01:29

The Extracellular Matrix

Overview
In order to maintain tissue organization, many animal cells are surrounded by structural molecules that make up the extracellular matrix (ECM). Together, the molecules in the ECM maintain the structural integrity of tissue as well as the remarkable specific properties of certain tissues.
Composition of the Extracellular Matrix
The extracellular matrix (ECM) is commonly composed of ground substance, a gel-like fluid, fibrous components, and many structurally and functionally diverse...
The Extracellular Matrix01:42

The Extracellular Matrix

In order to maintain tissue organization, many animal cells are surrounded by structural molecules that make up the extracellular matrix (ECM). Together, the molecules in the ECM maintain the structural integrity of tissue as well as the remarkable specific properties of certain tissues.Composition of the Extracellular MatrixThe extracellular matrix (ECM) is commonly composed of ground substance, a gel-like fluid, fibrous components, and many structurally and functionally diverse molecules.
Urinary Bladder01:23

Urinary Bladder

The urinary bladder is a hollow, muscular sac that temporarily stores urine before it is expelled from the body. It can hold approximately 600 mL of urine prior to micturition. The bladder is retroperitoneal and located behind the pubic symphysis in the pelvic floor.
In males, the bladder is situated in front of the rectum, while in females, it is positioned anterior to the vagina and uterus. The bladder floor contains an inverted triangular area called the trigone, defined by the two ureteric...
Extracellular Matrix01:26

Extracellular Matrix

Unlike epithelial tissue, which is composed of cells closely packed with little or no extracellular space in between, connective tissue cells are dispersed in a matrix. This extracellular matrix (ECM) is composed of fibrous proteins like collagen, elastin, and fibronectin in a ground substance consisting of interstitial fluid, cell adhesion proteins, and proteoglycans. The proteoglycans form a gel-like material in the spaces between cells and provide hydration, buffering, binding, and force...
Anatomy of the Genitourinary System II: Bladder and Urethra01:19

Anatomy of the Genitourinary System II: Bladder and Urethra

The lower urinary system consists of the urinary bladder and urethra, which are essential in storing and expelling urine from the body. Together with the internal and external sphincters, these structures work together to regulate urination effectively.Anatomy of the BladderThe urinary bladder is a muscular, stretchable organ behind the pubic bone and in front of the rectum. In females, the bladder is positioned anterior to the vagina and inferior to the uterus, while in males, it is located...
Cell-matrix's Response to Mechanical Forces01:13

Cell-matrix's Response to Mechanical Forces

In animal cells, the extracellular matrix allows cells within tissues to withstand external stresses and transmits signals from the outside of the cell to the inside. The extracellular matrix is extensive, and its composition varies between different types of tissues. For example, the reticular fibers and ground substance make up the ECM in loose connective tissue, while collagen and bone minerals make up the ECM of bone tissue. 
Anchoring junctions mechanically attach a cell to the...

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Related Experiment Video

Updated: Jun 19, 2026

Fabricating a Kidney Cortex Extracellular Matrix-Derived Hydrogel
08:23

Fabricating a Kidney Cortex Extracellular Matrix-Derived Hydrogel

Published on: October 13, 2018

The bladder extracellular matrix. Part II: regenerative applications.

Karen J Aitken1, Darius J Bägli

  • 1Division of Developmental & Stem Cell Biology, The Hospital For Sick Children, University of Toronto, ON, Canada.

Nature Reviews. Urology
|November 6, 2009
PubMed
Summary

Bladder regeneration aims to create alternatives to current cystoplasty methods. Understanding how the extracellular matrix influences cell behavior is key for successful bladder tissue engineering.

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Epithelial Cell Repopulation and Preparation of Rodent Extracellular Matrix Scaffolds for Renal Tissue Development
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Epithelial Cell Repopulation and Preparation of Rodent Extracellular Matrix Scaffolds for Renal Tissue Development

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Last Updated: Jun 19, 2026

Fabricating a Kidney Cortex Extracellular Matrix-Derived Hydrogel
08:23

Fabricating a Kidney Cortex Extracellular Matrix-Derived Hydrogel

Published on: October 13, 2018

Evaluation of Biomaterials for Bladder Augmentation using Cystometric Analyses in Various Rodent Models
10:19

Evaluation of Biomaterials for Bladder Augmentation using Cystometric Analyses in Various Rodent Models

Published on: August 9, 2012

Epithelial Cell Repopulation and Preparation of Rodent Extracellular Matrix Scaffolds for Renal Tissue Development
09:43

Epithelial Cell Repopulation and Preparation of Rodent Extracellular Matrix Scaffolds for Renal Tissue Development

Published on: August 10, 2015

Area of Science:

  • Regenerative medicine
  • Tissue engineering
  • Urology

Background:

  • Bladder regeneration is a critical goal for developing alternatives to traditional cystoplasty, which often uses non-urological tissues.
  • Current limitations in cystoplasty necessitate novel approaches for bladder reconstruction.

Purpose of the Study:

  • To explore strategies for bladder regeneration.
  • To highlight the importance of the extracellular matrix in guiding cellular behavior for regenerative therapies.

Main Methods:

  • Investigating cell seeding onto matrices with stem cells or conventional cells.
  • Exploring the repopulation of matrices by endogenous cellular reservoirs.

Main Results:

  • The extracellular matrix plays a crucial role in directing cell behavior.
  • Successful bladder regeneration depends on understanding matrix-cell interactions.

Conclusions:

  • Bladder regeneration holds promise as an alternative to cystoplasty.
  • Further research into extracellular matrix dynamics is essential for advancing bladder tissue engineering.