Monocyte Regulation in Homeostasis and Malignancy
Amy Robinson1, Claudia Z Han2, Christopher K Glass2
1Medical Research Council (MRC) Centre for Reproductive Health, Queen's Medical Research Institute, University of Edinburgh, Edinburgh EH16 4TJ, UK.
Trends in Immunology
|January 15, 2021
Summary
Monocytes, circulating immune cells, are key to detecting disease and differentiating into other immune cells. Cancer can alter monocyte numbers and functions, potentially aiding cancer spread and offering new therapeutic targets.
Area of Science:
- Immunology
- Cell Biology
- Cancer Biology
Background:
- Monocytes are crucial precursors for macrophages and dendritic cells.
- They also function as circulating sensors responding to environmental cues and disease states.
- Recent technological advances have elucidated monocyte production pathways in the bone marrow.
Purpose of the Study:
- To explore the dynamic roles of monocytes beyond their progenitor functions.
- To investigate how monocytes respond to signals in different tissue microenvironments.
- To understand the impact of cancer on systemic monocyte biology.
Main Methods:
- Identification of lineage-determining transcription factors (LDTFs) in monocyte development.
- Analysis of monocyte recruitment to tissues via chemoattractants.
- Assessment of niche-specific signaling in monocyte differentiation.
- Examination of cancer-induced alterations in monocyte subset abundance and transcriptional profiles.
Main Results:
- Monocytes differentiate into macrophages and monocyte-derived dendritic cells (MoDCs).
- Circulating monocytes are influenced by systemic conditions like cancer.
- Cancer alters monocyte abundance and gene expression, potentially promoting metastasis.
Conclusions:
- Monocyte biology in circulation is complex and influenced by disease.
- Cancer-associated changes in monocytes present potential therapeutic avenues.
- Further research into monocyte responses to cancer is warranted.
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