Direct effects of conjugated linoleic acid isomers on P815 mast cells in vitro.

Abstract:

:Conjugated linoleic acid (CLA) is a dietary fatty acid which causes extensive remodeling and mast cell recruitment in the mouse mammary gland. Two CLA isomers, 9,11- and 10,12-CLA, have differing effects in vivo, with only 10,12-CLA increasing mast cell number. The purpose of this project is to test the hypothesis that CLA acts directly on the mast cell. The P815 mastocytoma cell line was assayed for the effects of CLA on mast cell number, proliferation, apoptosis, and differentiation. Both CLA isomers decreased viable mast cell number, with no effect on membrane integrity, or cell cycle distribution. 10,12-CLA induced an increase in apoptosis, assessed by Annexin-FITC binding. Both isomers increased mast cell granularity, and secretion of MMP-9. The complex effects of CLA isomers on mast cells in the mammary gland are distinct from direct effects on mast cells in vitro, and may require interactions between multiple cell types present in vivo.

journal_name

Immunol Invest

authors

Krishnan S,Russell J,Bodziak M,Koury S,Masso-Welch P

doi

10.3109/08820139.2011.647187

subject

Has Abstract

pub_date

2012-01-01 00:00:00

pages

399-411

issue

4

eissn

0882-0139

issn

1532-4311

journal_volume

41

pub_type

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