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Related Concept Videos

What are Membranes?01:24

What are Membranes?

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A cell's plasma membrane demarcates the cell's borders and determines the nature of its interaction with the environment. Cells exclude certain substances, take in others, and excrete some others in controlled quantities. The plasma membrane must be flexible to allow certain cells, such as red and white blood cells, to change their shape while passing through narrow capillaries. These are the more obvious plasma membrane functions. In addition, the plasma membrane's surface carries...
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What are Membranes?01:54

What are Membranes?

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A key characteristic of life is the ability to separate the external environment from the internal space. To do this, cells have evolved semi-permeable membranes that regulate the passage of biological molecules. Additionally, the cell membrane defines a cell’s shape and interactions with the external environment. Eukaryotic cell membranes also serve to compartmentalize the internal space into organelles, including the endomembrane structures of the nucleus, endoplasmic reticulum and...
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Overview of Cell-Matrix Interactions01:24

Overview of Cell-Matrix Interactions

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The extracellular matrix or ECM holds cells together to form a tissue and allows the cells within the tissue to communicate. ECM comprises proteins such as fibronectin, collagen, laminin, etc. The most abundant protein in this space is collagen. Collagen fibers are interwoven with carbohydrate-containing protein molecules called proteoglycans. ECM allows cell migration and provides a structural scaffold at cell adhesion that anchors the cell when the extracellular matrix proteins interact with...
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Introduction to Membrane Proteins01:16

Introduction to Membrane Proteins

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The cell membrane, or plasma membrane, is an ever-changing landscape. It is described as a fluid mosaic where various macromolecules are embedded in the phospholipid bilayer. Among the macromolecules are proteins. The protein content varies across cell types. For example, mitochondrial inner membranes contain ~76% protein content, while myelin contains ~18% protein content. Individual cells contain many types of membrane proteins—red blood cells contain over 50—and different cell...
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Mechanisms of Membrane Domain Formation00:59

Mechanisms of Membrane Domain Formation

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Different physical properties of lipids and proteins allow them to localize and form distinct islands or domains in the membrane. Some membrane domains are formed due to protein-protein interactions, whereas others are formed due to the presence of specific lipids such as sphingolipids and sterols—for example, large proteins, such as bacteriorhodopsin, aggregate and create distinct domains.
Another mechanism for membrane domain formation involves membrane proteins interacting with...
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Cell Adhesion Molecules - Types and Functions01:20

Cell Adhesion Molecules - Types and Functions

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Cell adhesion molecules (CAMs) are pivotal to multicellularity and the coordinated functioning of tissues and organ systems. They enable physical interactions between cells and provide mechanical strength to tissues. They also function as receptors for signal transmission across the plasma membrane. The CAMs are broadly classified into four families - integrins, cadherins, selectins, and immunoglobulin-like CAMs (IgCAMs).
CAM Families
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Assembly of Cell Mimicking Supported and Suspended Lipid Bilayer Models for the Study of Molecular Interactions
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Interfacing the Cell with "Biomimetic Membrane Proteins".

Asaf Grupi1,2, Idan Ashur3, Nurit Degani-Katzav1,2

  • 1Department of Physics, Institute for Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan, 5290002, Israel.

Small (Weinheim an Der Bergstrasse, Germany)
|November 26, 2019
PubMed
Summary
This summary is machine-generated.

Engineered nanoparticles offer new ways to enhance membrane protein functions for diagnostics and therapeutics. Overcoming delivery challenges is key to incorporating these nanoparticles into cell membranes.

Keywords:
biomimetic membrane proteinsmembrane proteinsnanoparticles insertion into membranesnanorodsquantum dots

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Area of Science:

  • Biochemistry
  • Nanotechnology
  • Cell Biology

Background:

  • Integral membrane proteins are crucial for cellular functions and drug targeting.
  • Nanoparticles can enhance membrane protein scope for diagnostic and therapeutic uses.
  • Current methods face challenges in delivering and incorporating nanoparticles into membranes.

Purpose of the Study:

  • To discuss the potential of biomimetic membrane proteins (BMPs).
  • To review the current state of the art in nanoparticle membrane incorporation.
  • To identify barriers hindering technological advancement in this field.

Main Methods:

  • This perspective reviews existing literature and technological approaches.
  • It analyzes the challenges associated with nanoparticle delivery and membrane integration.
  • It discusses the concept and potential of biomimetic membrane proteins.

Main Results:

  • Nanoparticle incorporation into membranes is a significant technological hurdle.
  • Biomimetic membrane proteins (BMPs) show transformative potential.
  • Further research is needed to overcome current limitations.

Conclusions:

  • Advancing nanoparticle-based membrane protein engineering requires addressing delivery and incorporation barriers.
  • Biomimetic membrane proteins represent a promising frontier.
  • Technological innovation is essential for realizing the full potential of engineered nanoparticles in cellular applications.