Abstract:
:It is not clear whether pseudoallergic reactions are caused by similar mechanisms as type I allergic reactions. 3‑Caffeoylquinic acid (chlorogenic acid) is an active ingredient in traditional Chinese medicines used for antibacterial, anti-inflammatory and cholagogic purposes. It is assumed to be the reason for the high allergic reaction rates associated with certain traditional Chinese medicine injection solutions. The aim of the present study was to investigate the possible mechanisms through which chlorogenic acid triggers pseudoallergic reactions. The fluidity of the cell membrane was investigated using fluorescence recovery after photobleaching. Western blot analysis was used to measure the phosphorylation levels of the Spleen tyrosine kinase (Syk) protein and Fluo‑3/AM fluorescent probes were used to investigate the influx of calcium ions. In addition, fluorescence microscopy and phalloidin were used to determine F‑actin depolymerization levels. The secretion rate of β‑hexosaminidase by RBL‑2H3 cells clearly increased following treatment with chlorogenic acid and the levels of cytoskeletal disintegration were also markedly increased. Furthermore, we detected an increase in the intracellular calcium ion concentration along with distinct changes in Syk protein phosphorylation and cellular F‑actin. These changes indicated that chlorogenic acid affected the restructuring of the cytoskeleton and played a role in cell degranulation. In conclusion, chlorogenic acid may lead to the aggregation of lipid rafts on the cell membrane surface by altering RBL‑2H3 cell membrane fluidity, thus triggering Syk‑related signal transduction and inducing a truncated type I like allergic reaction.
journal_name
Int J Mol Medjournal_title
International journal of molecular medicineauthors
Li Q,Zhao Y,Zheng X,Chen Q,Zhang Xdoi
10.3892/ijmm.2013.1505subject
Has Abstractpub_date
2013-12-01 00:00:00pages
1273-80issue
6eissn
1107-3756issn
1791-244Xjournal_volume
32pub_type
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