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Patients with Ehlers-Danlos syndrome type IV lack type III collagen | JoVE Visualize

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Patients with Ehlers-Danlos syndrome type IV lack type III collagen

F M Pope, G R Martin, J R Lichtenstein

Proceedings of the National Academy of Sciences of the United States of America|April 1, 1975

View abstract on PubMed

Summary

Ehlers-Danlos syndrome type IV is linked to a lack of type III collagen, a protein crucial for skin, aorta, and intestine integrity. This deficiency in collagen III explains the characteristic fragility seen in these tissues.

Area of Science:

Biochemistry
Genetics
Dermatology

Background:

Ehlers-Danlos syndrome (EDS) is a group of inherited connective tissue disorders.
EDS type IV is characterized by severe complications affecting the skin, blood vessels, and internal organs.

Purpose of the Study:

To investigate the molecular basis of Ehlers-Danlos syndrome type IV.
To determine the collagen composition in tissues affected by EDS type IV.

Main Methods:

Analysis of collagen synthesis in skin fibroblasts from EDS type IV patients.
Comparison of collagen profiles between EDS type IV patients and healthy individuals.

Main Results:

Skin fibroblasts from EDS type IV patients exclusively synthesize type I collagen.
Type III collagen, normally present in skin, aorta, and intestine, is absent in EDS type IV tissues.
Healthy individuals' fibroblasts synthesize both type I and type III collagen.

Conclusions:

The absence of type III collagen is the underlying cause of the fragile skin, blood vessels, and intestines in Ehlers-Danlos syndrome type IV.
Type III collagen plays a critical role in maintaining the structural integrity of connective tissues.

Materials Engineering

Materials Engineering Not Elsewhere Classified

Patients With Ehlers-danlos Syndrome Type Iv Lack Type Iii Collagen