Secreted phosphoprotein 1 regulates natural compound 3',4',5,7-tetrahydroxyflavone to inhibit mast cell-mediated allergic inflammation

BACKGROUND: Mast cells (MCs) are important effector cells in anaphylaxis and anaphylactic disease. 3',4',5,7-tetrahydroxyflavone (THF) presents in many medicinal plants and exerts a variety of pharmacological effects. In this study, we evaluated the effect of THF on C48/80-induced anaphylaxis and the mechanisms underlying its effects, including the role of secreted phosphoprotein 1 (SPP1), which has not been reported to IgE-independent MC activation.

RESULTS: THF inhibited C48/80-induced Ca2+ flow and degranulation via the PLCγ/PKC/IP3 pathway in vitro. RNA-seq showed that THF inhibited the expression of SPP1 and downstream molecules. SPP1 is involved in pseudo-anaphylaxis reactions. Silencing SPP1 affects the phosphorylation of AKT and P38. THF suppressed C48/80-induced paw edema, hypothermia and serum histamine, and chemokines release in vivo.

CONCLUSIONS: Our results validated SPP1 is involved in IgE-independent MC activation anaphylactoid reactions. THF inhibited C48/80-mediated anaphylactoid reactions both in vivo and in vitro, suppressed calcium mobilization and inhibited SPP1-related pathways.

Medienart:

E-Artikel

Erscheinungsjahr:

2023

Erschienen:

2023

Enthalten in:

Zur Gesamtaufnahme - volume:45

Enthalten in:

Immunopharmacology and immunotoxicology - 45(2023), 6 vom: 01. Dez., Seite 672-681

Sprache:

Englisch

Beteiligte Personen:

Hu, Shiling [VerfasserIn]
Wang, Jue [VerfasserIn]
Bai, Haoyun [VerfasserIn]
Feng, Chaohua [VerfasserIn]
Zhou, Zhenqi [VerfasserIn]
Xue, Zhuoyin [VerfasserIn]
Zhang, Wen [VerfasserIn]
Zhang, Yongjing [VerfasserIn]
Wang, Nan [VerfasserIn]
He, Langchong [VerfasserIn]

Links:

Volltext

Themen:

106441-73-0
3’,4’,5,7-tetrahydroxyflavone
37341-29-0
IgE-independent MC activation
Immunoglobulin E
Journal Article
KUX1ZNC9J2
Luteolin
Mast cell
Osteopontin
Pseudo-anaphylaxis
SPP1

Anmerkungen:

Date Completed 06.12.2023

Date Revised 06.12.2023

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1080/08923973.2023.2228478

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM358408687