Chemokine profiling of melanoma-macrophage crosstalk identifies CCL8 and CCL15 as prognostic factors in cutaneous melanoma

© 2024 The Pathological Society of Great Britain and Ireland..

During cancer evolution, tumor cells attract and dynamically interact with monocytes/macrophages. To find biomarkers of disease progression in human melanoma, we used unbiased RNA sequencing and secretome analyses of tumor-macrophage co-cultures. Pathway analysis of genes differentially modulated in human macrophages exposed to melanoma cells revealed a general upregulation of inflammatory hallmark gene sets, particularly chemokines. A selective group of chemokines, including CCL8, CCL15, and CCL20, was actively secreted upon melanoma-macrophage co-culture. Because we previously described the role of CCL20 in melanoma, we focused our study on CCL8 and CCL15 and confirmed that in vitro both chemokines contributed to melanoma survival, proliferation, and 3D invasion through CCR1 signaling. In vivo, both chemokines enhanced primary tumor growth, spontaneous lung metastasis, and circulating tumor cell survival and lung colonization in mouse xenograft models. Finally, we explored the clinical significance of CCL8 and CCL15 expression in human skin melanoma, screening a collection of 67 primary melanoma samples, using multicolor fluorescence and quantitative image analysis of chemokine-chemokine receptor content at the single-cell level. Primary skin melanomas displayed high CCR1 expression, but there was no difference in its level of expression between metastatic and nonmetastatic cases. By contrast, comparative analysis of these two clinically divergent groups showed a highly significant difference in the cancer cell content of CCL8 (p = 0.025) and CCL15 (p < 0.0001). Kaplan-Meier curves showed that a high content of CCL8 or CCL15 in cancer cells correlated with shorter disease-free and overall survival (log-rank test, p < 0.001). Our results highlight the role of CCL8 and CCL15, which are highly induced by melanoma-macrophage interactions in biologically aggressive primary melanomas and could be clinically applicable biomarkers for patient profiling. © 2024 The Pathological Society of Great Britain and Ireland.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:262

Enthalten in:

The Journal of pathology - 262(2024), 4 vom: 03. Apr., Seite 495-504

Sprache:

Englisch

Beteiligte Personen:

Barrio-Alonso, Celia [VerfasserIn]
Nieto-Valle, Alicia [VerfasserIn]
García-Martínez, Elena [VerfasserIn]
Gutiérrez-Seijo, Alba [VerfasserIn]
Parra-Blanco, Verónica [VerfasserIn]
Márquez-Rodas, Iván [VerfasserIn]
Avilés-Izquierdo, José Antonio [VerfasserIn]
Sánchez-Mateos, Paloma [VerfasserIn]
Samaniego, Rafael [VerfasserIn]

Links:

Volltext

Themen:

Biomarkers
CCL15
CCL15 protein, human
CCL8
CCL8 protein, human
CCR1
CCR3
Chemokine CCL8
Chemokines
Chemokines, CC
Journal Article
Macrophage Inflammatory Proteins
Macrophages
Melanoma
Research Support, Non-U.S. Gov't

Anmerkungen:

Date Completed 06.03.2024

Date Revised 04.04.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1002/path.6252

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM36778243X