Feiji Recipe inhibits the growth of lung cancer by modulating T-cell immunity through indoleamine-2,3-dioxygenase pathway in an orthotopic implantation model

Copyright © 2018 Shanghai Changhai Hospital. Published by Elsevier B.V. All rights reserved..

OBJECTIVE: Escape from the body's immune response is a basic characteristic of lung cancer, and indoleamine-2,3-dioxygenase (IDO) plays a key role in mediating immune escape of non-small-cell lung cancer, which leads to recurrence and metastasis. Feiji Recipe, a compound Chinese herbal medicine, has the effect of stabilizing lesions and prolonging survival in patients with lung cancer. The purpose of this study was to investigate the mechanisms underlying the anticancer properties of Feiji Recipe.

METHODS: An orthotopic transplant model of mouse Lewis lung cancer, with stable expression of IDO gene, was established in C57BL/6 mice. Optical imaging was used to observe the effects of Feiji Recipe in the treatment of lung cancer in vivo. The effects of Feiji Recipe on the proliferation of mouse Lewis lung cancer cell line 2LL, 2LL-enhanced green fluorescent protein (2LL-EGFP) and 2LL-EGFP-IDO were investigated, and the apoptosis of T-cells was examined by 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2H-tetrazolium bromide using flow cytometry. Chemical composition of Feiji Recipe was validated by high-performance liquid chromatography.

RESULTS: Compared to the control group, the survival of animals treated with Feiji Recipe was significantly prolonged (P = 0.0074), and the IDO protein level decreased (P = 0.0072); moreover, the percentages of CD4+CD25+ T-cells and Foxp3+ T-cells were significantly decreased (P < 0.05). The molecular mechanism of Feiji Recipe against lung cancer may relate to the regulation of immune cells, such as T-cells and regulatory T-cells.

CONCLUSION: The molecular mechanism of Feiji Recipe in treatment of lung cancer is to restore the function of T-cells in the cancer microenvironment through interfering with the IDO pathway.

Medienart:

E-Artikel

Erscheinungsjahr:

2018

Erschienen:

2018

Enthalten in:

Zur Gesamtaufnahme - volume:16

Enthalten in:

Journal of integrative medicine - 16(2018), 4 vom: 01. Juli, Seite 283-289

Sprache:

Englisch

Beteiligte Personen:

Luo, Bin [VerfasserIn]
Que, Zu-Jun [VerfasserIn]
Zhou, Zhi-Yi [VerfasserIn]
Wang, Qing [VerfasserIn]
Dong, Chang-Sheng [VerfasserIn]
Jiang, Yi [VerfasserIn]
Hu, Bing [VerfasserIn]
Shi, Hui [VerfasserIn]
Jin, Yu [VerfasserIn]
Liu, Jian-Wen [VerfasserIn]
Li, He-Gen [VerfasserIn]
Wang, Lin [VerfasserIn]
Tian, Jian-Hui [VerfasserIn]

Links:

Volltext

Themen:

Drugs, Chinese Herbal
Feiji
Feiji Recipe
Growth Inhibitors
Immune escape
Indoleamine-2,3-dioxygenase
Indoleamine-Pyrrole 2,3,-Dioxygenase
Journal Article
Orthotopic xenografts

Anmerkungen:

Date Completed 05.11.2018

Date Revised 05.11.2018

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.joim.2018.04.008

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM283988711