Isolation, Propagation, and Analysis of Biological Nanoparticles

Michael P. Linnes, Farooq A. Shiekh, Larry W. Hunter, Virginia M. Miller, John C. Lieske

Research output: Chapter in Book/Report/Conference proceedingChapter

1 Scopus citations


Calcifying biologic nanoparticles (NPs) have been implicated as nucleation points for a number of ­pathologic events that include vascular calcification and the formation of kidney stones. In order to study these potential relationships, reproducible isolation of well-characterized biologic NPs is a necessity. Our group has isolated and propagated calcifying NPs from several human tissues and renal stones. Specific proteins that could nucleate a calcium phosphate shell under physiologic conditions have been identified as part of their structure, including elongation factor Tu (EF-Tu) and fetuin-A. Visualization, using advanced transmission electron microscopy (TEM), immunofluorescence microscopy, and nuclear and antibody staining in conjunction with flow cytometry, can further elucidate NPs composition and their role in pathology. In order to allow uniform investigation by others, the isolation, culture, and handling procedures for biologic NPs from human calcified vascular tissue and kidney stones are reported in detail.

Original languageEnglish (US)
Title of host publicationNanoproteomics
Subtitle of host publicationMethods and Protocols
PublisherHumana Press Inc.
Number of pages13
ISBN (Print)9781617793189
StatePublished - 2011

Publication series

NameMethods in Molecular Biology
ISSN (Print)1064-3745
ISSN (Electronic)1940-6029


  • Atherosclerosis
  • Calcification
  • Calcifying nanoparticles
  • Calcium oxalate
  • Calcium phosphate
  • Nanoparticle
  • Nephrolithiasis
  • Vascular plaque

ASJC Scopus subject areas

  • Molecular Biology
  • Genetics


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