Document Detail

Unlocking the ultrastructure of colorectal cancer cells in vitro using selective staining.
MedLine Citation:
PMID:  20533594     Owner:  NLM     Status:  MEDLINE    
AIM: To characterise differences between three widely used colorectal cancer cell lines using ultrastructural selective staining for glycogen to determine variation in metastatic properties.
METHODS: Transmission electron microscopy was used in this investigation to help identify intracellular structures and morphological features which are precursors of tumor invasion. In addition to morphological markers, we used selective staining of glycogen as a marker for neoplastic cellular proliferation and determined whether levels of glycogen change between the three different cell lines.
RESULTS: Ultrastructural analysis revealed morphological differences between the cell lines, as well as differentiation into two sub-populations within each cell line. Caco-2 cells contained large glycogen deposits as well as showing the most obvious morphological changes between the two sub-populations. SW480 cells also contained large glycogen stores as well as deep cellular protrusions when grown on porous filter membranes. HT-29 cells had trace amounts of glycogen stores with few cellular projections into the filter pores and no tight junction formation.
CONCLUSION: Morphology indicative of metastatic properties coincided with larger glycogen deposits, providing strong evidence for the use of selective staining to determine the neoplastic properties of cells.
Joanna M Biazik; Kristina A Jahn; Yingying Su; Ya-Na Wu; Filip Braet
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  World journal of gastroenterology : WJG     Volume:  16     ISSN:  2219-2840     ISO Abbreviation:  World J. Gastroenterol.     Publication Date:  2010 Jun 
Date Detail:
Created Date:  2010-06-10     Completed Date:  2010-08-31     Revised Date:  2014-05-20    
Medline Journal Info:
Nlm Unique ID:  100883448     Medline TA:  World J Gastroenterol     Country:  China    
Other Details:
Languages:  eng     Pagination:  2743-53     Citation Subset:  IM    
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MeSH Terms
Caco-2 Cells / chemistry,  ultrastructure*
Colorectal Neoplasms / chemistry,  pathology*
Glycogen / analysis
HT29 Cells / chemistry,  ultrastructure*
Microscopy, Electron, Transmission / methods
Staining and Labeling / methods*
Reg. No./Substance:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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