Document Detail


Lysophosphatidylserine potentiates nerve growth factor-induced differentiation of PC12 cells.
MedLine Citation:
PMID:  9654346     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Since lysophosphatidylserine (LPS) is required for nerve growth factor (NGF)-induced secretion of histamine from rat mast cells, we investigated whether LPS might potentiate the effects of NGF in inducing neural differentiation of PC12 cells. Cell morphology was evaluated 48 h after addition of NGF, LPS or NGF + LPS. LPS alone was ineffective, but strongly promoted NGF-induced differentiation to give rise to cells that more closely resembled neurons in primary culture. LPS increased the number of PC12 cells that developed neurites in response to NGF (0.01-40 ng/ml), with the response to 1.0 ng/ml increasing from 17.8 +/- 2.2 to 50.8 +/- 4.1% when LPS was also present. Neurite length was also greater in PC12 cells receiving NGF + LPS: 17.8 +/- 2.2% of cells had neurites longer than three cell body diameters with 1.0 ng/ml NGF + 1 microg/ml LPS, compared to 1.6 +/- 1.6% with NGF alone. Further, cells responding to NGF + LPS typically developed only 1-2 neurites per cell (90.9%, 1 microg/ml LPS), compared with the multipolar appearance with NGF alone (71.1% with 3-6 neurites, 10 ng/ml NGF). LPS occurs at sites of tissue damage where NGF can also be present, and therefore may be a naturally-occurring modifier of neuronal structure and/or function.
Authors:
S Lourenssen; M G Blennerhassett
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Neuroscience letters     Volume:  248     ISSN:  0304-3940     ISO Abbreviation:  Neurosci. Lett.     Publication Date:  1998 May 
Date Detail:
Created Date:  1998-08-17     Completed Date:  1998-08-17     Revised Date:  2003-11-14    
Medline Journal Info:
Nlm Unique ID:  7600130     Medline TA:  Neurosci Lett     Country:  IRELAND    
Other Details:
Languages:  eng     Pagination:  77-80     Citation Subset:  IM    
Affiliation:
Department of Fetal Health and Development, Samuel Lunenfeld Research Institute, Toronto, Ontario, Canada.
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MeSH Terms
Descriptor/Qualifier:
Animals
Cell Differentiation / drug effects
Lysophospholipids / pharmacology,  physiology*
Nerve Growth Factors / pharmacology,  physiology*
Neurites / drug effects,  ultrastructure
PC12 Cells
Rats
Chemical
Reg. No./Substance:
0/Lysophospholipids; 0/Nerve Growth Factors; 0/lysophosphatidylserine

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


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