Immunohistochemical detection of intracellular tropoelastin: an assay for elastin production and its use in the detection and assessment of elastogenic factors.

L. E. Grosso, L. A. Whitehouse, R. P. Mecham

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Techniques are described for visualizing intracellular tropoelastin at the light level using immunofluorescence and immunogold techniques. Best results were obtained with B5 fixative on cells permeabilized with acetone. Using either formaldehyde or paraformaldehyde for fixation (instead of B5) resulted in both less reproducible and less intense intracellular staining, and permeabilization of the cells with ethanol resulted in relatively high background staining compared with that obtained with cold (-20 degrees C) acetone. Intracellular tropoelastin was seen most prominently in the perinuclear region, and the intensity of staining agreed with the reported rate of tropoelastin synthesis as assayed by enzyme-linked immunosorbent assay (ELISA) and RNA hybridization studies. The applicability of the intracellular staining technique for studying the elastin phenotype was tested by demonstrating increases in both the number of positive cells and in the intensity of elastin staining in cells treated with smooth muscle elastogenic factor (SMEF), an elastogenic factor known to stimulate elastin production.

Original languageEnglish
Pages (from-to)45-49
Number of pages5
JournalAmerican Journal of Respiratory Cell and Molecular Biology
Volume3
Issue number1
DOIs
StatePublished - Jul 1990

Fingerprint Dive into the research topics of 'Immunohistochemical detection of intracellular tropoelastin: an assay for elastin production and its use in the detection and assessment of elastogenic factors.'. Together they form a unique fingerprint.

Cite this