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Related Experiment Videos

Clusterin expression in differentiating smooth muscle cells

S Thomas-Salgar1, A J Millis

  • 1Department of Biological Sciences, University at Albany, State University of New York 12222.

The Journal of Biological Chemistry
|July 8, 1994
PubMed
Summary
This summary is machine-generated.

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Smooth muscle cells (SMC) increase clusterin expression during nodule formation. This protein, clusterin, plays a functional role in SMC modulation and multicellular aggregation.

Area of Science:

  • Biochemistry
  • Cell Biology
  • Molecular Biology

Background:

  • Clusterin is a glycoprotein involved in cell-cell adhesion.
  • Smooth muscle cells (SMC) in culture transition from a monolayer to nodular structures.
  • This morphological change is associated with altered gene expression.

Purpose of the Study:

  • To investigate the role of clusterin in SMC morphological modulation.
  • To determine if clusterin expression changes during SMC nodule formation.
  • To explore the functional significance of clusterin in SMC aggregation.

Main Methods:

  • Cultured porcine SMC were analyzed for clusterin mRNA and protein expression.
  • SMC were cultured on Matrigel and collagen gels to observe nodule formation.

Related Experiment Videos

  • Anticlusterin antibodies were used to inhibit nodule formation.

    • Main Results:

    • Clusterin expression (mRNA and protein) increased during SMC transition to nodular cultures.
    • Matrigel, containing clusterin, promoted rapid nodule formation.
    • Collagen gel facilitated clusterin expression, and anticlusterin antibodies inhibited nodule formation.

    Conclusions:

    • SMC clusterin is differentially expressed and upregulated during nodule formation.
    • Endogenous clusterin appears to support rapid nodule formation in SMC cultures.
    • Clusterin plays a functional role in SMC modulation and multicellular aggregation.