» Articles » PMID: 39298082

Circadian System Disorder Induced by Aberrantly Activated EFNB2-EPHB2 Axis Leads to Facilitated Liver Metastasis in Gastric Cancer

Overview
Publisher Springer
Date 2024 Sep 19
PMID 39298082
Authors
Affiliations
Soon will be listed here.
Abstract

Background: Liver is one of the most preferred destinations for distant metastasis of gastric cancer (GC) and liver metastasis usually predicts poor prognosis. The achievement of liver metastasis requires continued cross-talk of complex members in tumor microenvironment (TME) including tumor associated macrophages (TAMs).

Methods: Results from 35 cases of ex vivo cultured living tissues of GC liver metastasis have elucidated that circadian rhythm disorder (CRD) of key molecules involved in circadian timing system (CTS) facilitates niche outgrowth. We next analyzed 69 cases of liver metastasis from patients bearing GC and designed co-culture or 3D cell culture, discovering that TAMs expressing EFNB2 could interact with tumor cell expressing EPHB2 for forward downstream signaling and lead to CRD of tumor cells. Moreover, we performed intrasplenic injection models assessed by CT combined 3D organ reconstruction bioluminescence imaging to study liver metastasis and utilized the clodronate treatment, bone marrow transplantation or EPH inhibitor for in vivo study followed by exploring the clinical therapeutic value of which in patient derived xenograft (PDX) mouse model.

Results: Ex vivo studies demonstrated that CRD of key CTS molecules facilitates niche outgrowth in liver metastases. In vitro studies revealed that TAMs expressing EFNB2 interact with tumor cells expressing EPHB2, leading to CRD and downstream signaling activation. The underlying mechanism is the enhancement of the Warburg effect in metastatic niches.

Conclusion: Overall, we aim to uncover the mechanism in TAMs induced CRD which promotes liver metastasis of GC and provide novel ideas for therapeutic strategies.

Citing Articles

The role of macrophages in liver metastasis: mechanisms and therapeutic prospects.

Yuan Q, Jia L, Yang J, Li W Front Immunol. 2025; 16:1542197.

PMID: 40034694 PMC: 11872939. DOI: 10.3389/fimmu.2025.1542197.

References
1.
Sung H, Ferlay J, Siegel R, Laversanne M, Soerjomataram I, Jemal A . Global Cancer Statistics 2020: GLOBOCAN Estimates of Incidence and Mortality Worldwide for 36 Cancers in 185 Countries. CA Cancer J Clin. 2021; 71(3):209-249. DOI: 10.3322/caac.21660. View

2.
Carcas L . Gastric cancer review. J Carcinog. 2015; 13:14. PMC: 4278094. DOI: 10.4103/1477-3163.146506. View

3.
Yang P, Li Q, Feng Y, Zhang Y, Markowitz G, Ning S . TGF-β-miR-34a-CCL22 signaling-induced Treg cell recruitment promotes venous metastases of HBV-positive hepatocellular carcinoma. Cancer Cell. 2012; 22(3):291-303. PMC: 3443566. DOI: 10.1016/j.ccr.2012.07.023. View

4.
Shitara K, Ikeda J, Kondo C, Takahari D, Ura T, Muro K . Reporting patient characteristics and stratification factors in randomized trials of systemic chemotherapy for advanced gastric cancer. Gastric Cancer. 2011; 15(2):137-43. DOI: 10.1007/s10120-011-0083-8. View

5.
Dibner C, Schibler U, Albrecht U . The mammalian circadian timing system: organization and coordination of central and peripheral clocks. Annu Rev Physiol. 2010; 72:517-49. DOI: 10.1146/annurev-physiol-021909-135821. View