Chemokines during anaphylaxis

ǂthe ǂimportance of CCL2 and CCL2-dependent chemotactic activity for basophils

Romana Vantur (Author), Maruša Rihar (Author), Ana Koren (Author), Matija Rijavec (Author), Peter Kopač (Author), Urška Bidovec (Author), Renato Eržen (Author), Peter Korošec (Author)

Abstract

Background: The role of chemokines in anaphylaxis is unclear. Methods: We prospectively recruited 49 patients presenting to the emergency department with an acute episode of anaphylaxis and 28 healthy subjects. We measured serum levels of the chemokines CCL2, CCL5, CCL7, CCL8, CCL11, CCL13, CCL17, CCL21, CCL22, CCL24, and CCL26, tryptase, the absolute number of circulating basophils, monocytes, lymphocytes, and PMNs, and whole blood FCER1A, CPA3 and HDC gene expression at two time points: during the anaphylactic episode and in convalescent samples collected approximately 3 months later. We then investigated the in vitro chemotactic activity of chemokines induced during anaphylaxis for the in vitro migration of the corresponding cells. Results: Only CCL2 chemokine levels were signifcantly increased in anaphylaxis samples (median 514 pg/ml) compared to convalescent samples (284 pg/ml, P<0.0001) and healthy subjects (279 pg/ml, P<0.0001); there was no signifcant diference in any of the other chemokines. There was a signifcant positive correlation between the rates of increase of serum CCL2 (median [range]: 106.0% [-44.7% to 557.4%]) and tryptase (133.8% [-6.6% to 893.4%]; r=0.68, P<0.0001) and between the acute concentration of serum CCL2 and the acute concentration of serum tryptase (r=0.77, P<0.0001). The number of circulating basophils, but not other blood cells, signifcantly decreased during anaphylaxis (median 5.0 vs. 19.1 cells/[micro]l in convalescent samples; P<0.0001); a decrease in whole-blood gene expression of basophil markers (P

Keywords

CCL2;celična migracija;cell migration;

Data

Language:	English
Year of publishing:	2020
Typology:	1.01 - Original Scientific Article
Publisher:	Springer Nature
UDC:	616-097
COBISS:	43048963
ISSN:	2045-7022
Views:	817
Downloads:	333
Average score:	0 (0 votes)
Metadata:

Other data

Secondary keywords:	Anaphylaxis;Chemokines;Tryptases;Basophils;Chemotaxis;Anafilaksija;Kemokini;Triptaze;Bazofilci;Kemotaksa;
Source comment:	Nasl. z nasl. zaslona; Soavtorji: Maruša Rihar, Ana Koren, Matija Rijavec, Peter Kopač, Urška Bidovec-Stojković, Renato Eržen, Peter Korošec; Opis vira z dne 16. 12. 2020; Št. članka: 63;
Pages:	str. 1-11
Issue:	ǂVol. ǂ10
Chronology:	2020
DOI:	10.1186/s13601-020-00367-2
ID:	12400276