Circulating monocytes and cardiac macrophages in diastolic dysfunction (WP4474)

Mus musculus

This pathway is modeled based on fig 10 in Hulsmans et al, and was developed in collaboration with Dr. Matthias Nahrendorf. Circulating monocytes and myocardial macrophage density are increased in diastolic dysfunction, and the macrophage expansion is partially driven by monocyte recruitment. Mechanistically, cardiac macrophages produce more IL-10 leading to autocrine activation toward a fibrogenic phenotype. A profibrotic macrophage subset secretes more Spp1 (OPN) and fewer proteases and MMPs, contributing to fibroblast activation, collagen deposition, and subsequently increased myocardial stiffness and diastolic dysfunction. (Description based on figure 10 legend).

For a description of pathway objects, see the WikiPathways Legend.

Authors

Kristina Hanspers , Martina Summer-Kutmon , and Daniela Digles

Activity

last edited

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Organisms

Mus musculus

Communities

ExRNA

Annotations

Cell Type Ontology

macrophage macrophage intermediate monocyte myofibroblast cell myofibroblast cell monocyte monocyte

Disease Ontology

cardiovascular system disease cardiovascular system disease hypertension hypertension

Pathway Ontology

disease pathway

Participants

Label Type Compact URI Comment
ROS Metabolite chebi:26523
Ccl2 GeneProduct ensembl:ENSMUSG00000035385
Il10 GeneProduct ensembl:ENSMUSG00000016529
Spp1 GeneProduct ensembl:ENSMUSG00000029304
Ccr2 GeneProduct ensembl:ENSMUSG00000049103

References

  1. Cardiac macrophages promote diastolic dysfunction. Hulsmans M, Sager HB, Roh JD, Valero-Muñoz M, Houstis NE, Iwamoto Y, et al. J Exp Med. 2018 Feb 5;215(2):423–40. PubMed Europe PMC Scholia