A Takeuchi

AZ Zaas

B Pulendran

C Reise Sousa

C Schindler

CH Lee

D Kabelitz

D Liao

DV Kalvakolanu

E Bettelli

E Masuda

F Qa'dan

Fadi Qadan

FE Lund

G Theiner

G Trinchieri

GL Beatty

GP Dunn

H Ito

H Kojima

H Lü

Heba A Alshaker

I Kryczek

J Chen

JS Nam

K Pardali

Khalid Z Matalka

KZ Matalka

L Armstrong

L Ulloa

L Zitvogel

LA Lieberman

M Al-Hanbali

M Veldhoen

MJ Smyth

MO Li

Mona Bustami

N Banno

N Hirahara

Nidal A Qinna

O Schulz

OL Podhajcer

PR Mangan

R Derynck

RE Nair

S Kim

SG Correa

T Blankenstein

T Suzuki

V Shankaran

Z Qin

BMC Complementary and Alternative Medicine

English

PubMed

Springer - Publisher Connector

Eriobotrya japonica hydrophilic extract modulates cytokines in normal tissues, in the tumor of Meth-A-fibrosarcoma bearing mice, and enhances their survival time

Abstract
          
            Background
            Cytokines play a key role in the immune response to developing tumors, and therefore modulating their levels and actions provides innovative strategies for enhancing the activity of antigen presenting cells and polarizing towards T helper 1 type response within tumor microenvironment. One of these approaches could be the employment of plant extracts that have cytokine immunomodulation capabilities. Previously, we have shown that the Eriobotrya japonica hydrophilic extract (EJHE) induces proinflammatory cytokines in vitro and in vivo.
          
          
            Methods
            The present study explored the in vivo immunomodulatory effect on interferon-gamma (IFN-γ), interleukin-17 (IL-17), and transforming growth factor-beta 1 (TGF-β1) evoked by two water-extracts prepared from EJ leaves in the tissues of normal and Meth-A-fibrosarcoma bearing mice.
          
          
            Results
            Intraperitoneal (i.p.) administration of 10 μg of EJHE and EJHE-water residue (WR), prepared from butanol extraction, increased significantly IFN-γ production in the spleen (p &lt; 0.01) and lung (p &lt; 0.03) tissues at 6-48 hours and suppressed significantly TGF-β1 production levels (p &lt; 0.001) in the spleen for as long as 48 hours. The latter responses, however, were not seen in Meth-A fibrosarcoma-bearing mice. On the contrary, triple i.p. injections, 24 hours apart; of 10 μg EJHE increased significantly IFN-γ production in the spleen (p &lt; 0.02) while only EJHE-WR increased significantly IFN-γ, TGF-β1 and IL-17 (p &lt; 0.03 - 0.005) production within the tumor microenvironment of Meth-A fibrosarcoma. In addition, the present work revealed a significant prolongation of survival time (median survival time 72 days vs. 27 days of control, p &lt; 0.007) of mice inoculated i.p. with Meth-A cells followed by three times/week for eight weeks of i.p. administration of EJHE-WR. The latter prolonged survival effect was not seen with EJHE.
          
          
            Conclusions
            The therapeutic value of EJHE-WR as an anticancer agent merits further investigation of understanding the effect of immunomodulators' constituents on the cellular components of the tissue microenvironment. This can lead to the development of improved strategies for cancer treatment and thus opening up a new frontier for future studies.
          </jats:sec

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Eriobotrya japonica hydrophilic extract modulates cytokines in normal tissues, in the tumor of Meth-A-fibrosarcoma bearing mice, and enhances their survival time

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