Tissue-Resident Macrophages in Pancreatic Ductal Adenocarcinoma Originate from Embryonic Hematopoiesis and Promote Tumor Progression.
Immunity
; 47(2): 323-338.e6, 2017 08 15.
Article
en En
| MEDLINE
| ID: mdl-28813661
ABSTRACT
Tumor-associated macrophages (TAMs) are essential components of the cancer microenvironment and play critical roles in the regulation of tumor progression. Optimal therapeutic intervention requires in-depth understanding of the sources that sustain macrophages in malignant tissues. In this study, we investigated the ontogeny of TAMs in murine pancreatic ductal adenocarcinoma (PDAC) models. We identified both inflammatory monocytes and tissue-resident macrophages as sources of TAMs. Unexpectedly, significant portions of pancreas-resident macrophages originated from embryonic development and expanded through in situ proliferation during tumor progression. Whereas monocyte-derived TAMs played more potent roles in antigen presentation, embryonically derived TAMs exhibited a pro-fibrotic transcriptional profile, indicative of their role in producing and remodeling molecules in the extracellular matrix. Collectively, these findings uncover the heterogeneity of TAM origin and functions and could provide therapeutic insight for PDAC treatment.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Páncreas
/
Neoplasias Pancreáticas
/
Carcinoma Ductal
/
Carcinogénesis
/
Macrófagos
Tipo de estudio:
Prognostic_studies
Límite:
Animals
Idioma:
En
Revista:
Immunity
Asunto de la revista:
ALERGIA E IMUNOLOGIA
Año:
2017
Tipo del documento:
Article
País de afiliación:
Estados Unidos