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Elastin is Responsible for Tissue Elasticity01:12

Elastin is Responsible for Tissue Elasticity

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Elastic fiber contains the protein elastin along with lesser amounts of other proteins and glycoproteins. The main property of elastin is that it will return to its original shape after being stretched or compressed. Elastic fibers are prominent in elastic tissues found in skin and the elastic ligaments of the vertebral column.
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Fibril-associated collagens are a type of collagens present in the extracellular matrix with interrupted triple helices or FACIT (Fibril-associated collagens interrupted triple-helices). FACIT help connect and attach the collagen fibrils with each other as well as with other proteins of the extracellular matrix.
For example, the type II collagen fibrils in cartilage have covalently bound type IX fibril-associated collagens at regular intervals. Other types of fibril-associated collagens are...
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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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The Extracellular Matrix01:29

The Extracellular Matrix

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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
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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. 
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Anchoring Junctions01:03

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Anchoring junctions are multiprotein complexes that help cells connect to other cells and the extracellular matrix. Anchoring junctions are present on the lateral and basal surfaces of cells, providing strong and flexible connections. Focal adhesions are often formed due to cell interactions with the ECM substrata, which initiate signal transduction via kinase cascades and other mechanisms. Together, they provide stability and tissue integrity. There are three types of anchoring junctions:...
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Updated: Aug 28, 2025

Production of Elastin-like Protein Hydrogels for Encapsulation and Immunostaining of Cells in 3D
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Cytokine conjugates to elastin-like polypeptides.

Like Gong1, Zhaoying Yang1, Fan Zhang1

  • 1Institute of Medical Technology, Peking University Health Science Center, Beijing 100191, China; Department of Geriatric Dentistry, Beijing Laboratory of Biomedical Materials, Peking University School and Hospital of Stomatology, Beijing 100081, China; Biomedical Engineering Department, Peking University, Beijing 100191, China; Peking University International Cancer Institute, Beijing 100191, China; Peking University-Yunnan Baiyao International Medical Research Center, Beijing 100191, China.

Advanced Drug Delivery Reviews
|September 20, 2022
PubMed
Summary
This summary is machine-generated.

Conjugating cytokines with elastin-like polypeptides (ELPs) enhances their stability and circulation time. This biomaterial approach improves therapeutic protein delivery and controlled release, overcoming key limitations.

Keywords:
Controlled releaseCytokineDrug deliveryElastin-like polypeptideSelf-assembly

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Non-chromatographic Purification of Recombinant Elastin-like Polypeptides and their Fusions with Peptides and Proteins from Escherichia coli
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Area of Science:

  • Biomaterials Science
  • Protein Engineering
  • Therapeutic Protein Development

Background:

  • Cytokines are vital proteins for biological processes and therapeutics but face challenges like poor stability and short half-lives.
  • Existing limitations hinder the broad application of cytokines in clinical settings.

Purpose of the Study:

  • To review recent advancements in conjugating cytokines with elastin-like polypeptides (ELPs).
  • To highlight how ELP conjugation addresses cytokine limitations for improved therapeutic applications.

Main Methods:

  • Reviewing literature on the design and production of cytokine-ELP conjugates.
  • Analyzing the properties and applications of these conjugates, focusing on thermal responsiveness.

Main Results:

  • ELP conjugation extends cytokine circulation, enhances stability, and improves protein expression and purification.
  • Thermoresponsive cytokine-ELP conjugates can self-assemble into micelles for targeted delivery or form depots for controlled release.

Conclusions:

  • Cytokine-ELP conjugates offer a promising strategy to overcome therapeutic protein limitations.
  • Further research into challenges and future directions is needed for this emerging field.