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Related Experiment Videos

Matrix proteoglycans: from molecular design to cellular function

R V Iozzo1

  • 1Department of Pathology, Anatomy and Cell Biology, Jefferson Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania 19107-6799, USA. iozzo@lac.jci.tju.edu

Annual Review of Biochemistry
|October 6, 1998
PubMed
Summary

Proteoglycans are crucial molecules involved in tissue organization, cell growth, and biological regulation. Recent studies highlight their diverse genetic and molecular roles, impacting everything from skin strength to tumor invasion.

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Area of Science:

  • Biochemistry
  • Molecular Biology
  • Genetics

Background:

  • Proteoglycans are a superfamily of over 30 molecules with diverse biological functions.
  • They act as tissue organizers, influence cell growth, and modulate growth factor activities.
  • Studies indicate some proteoglycans are essential for life, while others may be redundant.

Purpose of the Study:

  • To review recent genetic and molecular biological studies of matrix proteoglycans.
  • To emphasize molecular organization, protein module utilization, gene structure, and transcriptional control.
  • To examine the functional roles and structure-function relationships of various proteoglycans.

Main Methods:

  • Focus on genetic and molecular biological studies.
  • Analysis of protein core organization and module utilization.

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  • Review of gene structure, transcriptional control, and functional roles.

    • Main Results:

    • Proteoglycans influence tissue organization, cell maturation, and biological filtration.
    • They regulate collagen fibrillogenesis, skin tensile strength, and corneal transparency.
    • Roles in tumor cell growth, invasion, and neurite outgrowth are significant.

    Conclusions:

    • Proteoglycans exhibit a wide range of essential biological functions.
    • Recent research clarifies their molecular organization and genetic regulation.
    • Understanding proteoglycan structure-function relationships offers novel biological insights.