CXCR4-CXCL12-CXCR7, TLR2-TLR4, and PD-1/PD-L1 in colorectal cancer liver metastases from neoadjuvant-treated patients

A neoadjuvant clinical trial was previously conducted in patients with resectable colorectal cancer liver metastases (CRLM). At a median follow up of 28 months, 20/33 patients were dead of disease, 8 were alive with disease and 5 were alive with no evidence of disease. To shed further insight into biological features accounting for different outcomes, the expression of CXCR4-CXCL12-CXCR7, TLR2-TLR4, and the programmed death receptor-1 (PD-1)/programmed death-1 ligand (PD-L1) was evaluated in excised liver metastases. Expression profiles were assessed through qPCR in metastatic and unaffected liver tissue of 33 CRLM neoadjuvant-treated patients. CXCR4 and CXCR7, TLR2/TLR4, and PD-1/PD-L1 mRNA were significantly overexpressed in metastatic compared to unaffected liver tissues. CXCR4 protein was negative/low in 10/31, and high in 21/31, CXCR7 was negative/low in 16/31 and high in 15/31, CXCL12 was negative/low in 14/31 and high in 17/31 CRLM. PD-1 was negative in 19/30 and positive in 11/30, PD-L1 was negative/low in 24/30 and high in 6/30 CRLM. Stromal PD-L1 expression, affected the progression-free survival (PFS) in the CRLM population. Patients overexpressing CXCR4 experienced a worse PFS and cancer specific survival (CSS) (p = 0.001 and p = 0.0008); in these patients, KRAS mutation identified a subgroup with a significantly worse CSS (p < 0.01). Thus, CXCR4 and PD-L1 expression discriminate patients with the worse PFS within the CRLM evaluated patients. Within the CXCR4 high expressing patients carrying Mut-KRAS in CRLM identifies the worst prognostic group. Thus, CXCR4 targeting plus anti-PD-1 therapy should be explored to improve the prognosis of Mut-KRAS-high CXCR4-CRLMs.

Medienart:

E-Artikel

Erscheinungsjahr:

2016

Erschienen:

2016

Enthalten in:

Zur Gesamtaufnahme - volume:5

Enthalten in:

Oncoimmunology - 5(2016), 12 vom: 07., Seite e1254313

Sprache:

Englisch

Beteiligte Personen:

D'Alterio, Crescenzo [VerfasserIn]
Nasti, Guglielmo [VerfasserIn]
Polimeno, Marianeve [VerfasserIn]
Ottaiano, Alessandro [VerfasserIn]
Conson, Manuel [VerfasserIn]
Circelli, Luisa [VerfasserIn]
Botti, Giovanni [VerfasserIn]
Scognamiglio, Giosuè [VerfasserIn]
Santagata, Sara [VerfasserIn]
De Divitiis, Chiara [VerfasserIn]
Nappi, Anna [VerfasserIn]
Napolitano, Maria [VerfasserIn]
Tatangelo, Fabiana [VerfasserIn]
Pacelli, Roberto [VerfasserIn]
Izzo, Francesco [VerfasserIn]
Vuttariello, Emilia [VerfasserIn]
Botti, Gerardo [VerfasserIn]
Scala, Stefania [VerfasserIn]

Links:

Volltext

Themen:

CXCR4–CXCL12–CXCR7 axis
Colorectal cancer liver metastases (CRLM)
Journal Article
KRAS mutation
PD-1/PD-L1
Research Support, Non-U.S. Gov't
Toll-like receptors (TLRs)

Anmerkungen:

Date Revised 30.03.2022

published: Electronic-eCollection

Citation Status PubMed-not-MEDLINE

doi:

10.1080/2162402X.2016.1254313

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM268349851