Basal Membrane Extract

Basal membrane extract is a protein-rich extracellular matrix preparation used to recreate aspects of the basement membrane in cell culture, enabling cells to grow in a more tissue-like three-dimensional environment. It typically contains structural proteins such as laminin and type IV collagen, along with other matrix components, and can form a gel under physiological temperature conditions. Researchers use this matrix for organoid generation, cell differentiation, invasion assays, and tissue engineering, where matrix composition and stiffness influence cell adhesion, polarity, signaling, and morphology. By supporting controlled three-dimensional culture, basal membrane extract helps model tissue organization and evaluate biological responses in developmental, disease, and drug research.

Basal Membrane Extract - Related Videos

Research

JoVE Journal - Medicine

Lumican Extraction from Amniotic Membrane and Determination of its Storage Temperature

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2022

The present protocol describes the extraction of lumican from the amniotic membrane (AM) and their storing conditions as AM extract (AME) at -20 °C, 4 °C, and room temperature (RT) for 6, 12, 20, and 32 days to quantify its proteins and lumican concentration.

Measurement of Basal and Forskolin-stimulated Lipolysis in Inguinal Adipose Fat Pads

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Cited by 10 •

2017

This protocol describes the method of determining basal and forskolin-stimulated lipolysis in inguinal fat pads obtained from normal chow diet (NCD) or high fat diet (HFD) ± capsaicin fed wild type mice. As an index for lipolysis, glycerol release was measured from inguinal adipose fat pads.

Education

JoVE Core - Cell Biology

Laminins are the Adhesive Proteins of Basal Lamina

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2023

Laminins are heterotrimeric proteins with high molecular mass found in the extracellular matrix. Each laminin molecule is composed of three chains, viz. alpha, beta, and gamma, coded by five, four, and three paralogous genes, respectively. Laminins are categories based on the compositions of the three chains. In humans, the five forms of alpha chains are LAMA 1, LAMA 2, LAMA 3, LAMA 4, and LAMA 5. The four forms of beta chains are LAMB 1, LAMB 2, LAMB 3, and LAMB 4. The three forms of gamma...

Research

JoVE Journal - Bioengineering
Free Sample

Continuous Liquid-Liquid Extraction of Medium-Chain Fatty Acids from Fermentation Broth Using Hollow-Fiber Membranes

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Cited by 2 •

2024

A liquid-liquid extraction (LLE) system involving hollow-fiber membranes was developed to continuously and selectively extract medium-chain fatty acids (MCFAs) from the fermentation broth. The LLE system achieves high MCFA specificities from broths containing short-chain fatty acids and alcohols. Also, MCFAs are concentrated in a stripping solution to facilitate product recovery.

Extracting Host Cell Lysate from Infected Host Cells Cultured in a Permeable Membrane System

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2025

This video demonstrates a permeable membrane insert system to investigate the impact of bacterial toxins on host cells in a controlled and isolated manner. This approach allows for the selective exposure of the cells to the toxins while maintaining a physical separation that mimics the natural host-pathogen interaction.

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