Indicator Explainer
Monocyte
Large, phagocytic mononuclear leukocytes produced in the vertebrate bone marrow and released into the blood; contain a large, oval or somewhat indented nucleus surrounded by voluminous cytoplasm and numerous organelles.
This page explains what the indicator is and how results are interpreted in general terms. Reference ranges depend on the laboratory, the method, and your own situation — no single “normal value” applies to everyone. This page is health information, not a diagnosis. For symptoms, treatment, or urgent concerns, contact a healthcare professional.
When it is tested
Source: National Cancer Institute, NCI Thesaurus 26.09d, C12547. NCI definition, reproduced without modification under CC BY 4.0. Source identity and definition checked automatically on 2026-10-19. No individual clinical interpretation or human reviewer is asserted.
Reading results
Reference intervals and interpretation depend on the laboratory, specimen, method and clinical context. This source definition is educational information; it does not establish a diagnosis, product approval or suitability for an individual.
Also Known As
Related Tests
Tests that measure or involve this indicator.
References
- NCI Thesaurus 26.09d — Monocyte (C12547)
- Source: National Cancer Institute, NCI Thesaurus 26.09d, C12547. NCI definition, reproduced without modification under CC BY 4.0.
- Monocyte-derived pro-angiogenic ocular macrophages identified by spatial transcriptomics are essential for choroidal neovascularization. — J Clin Invest, 2026-10-08 (PMID 42848455; literature)
- Hyperglycemia Drives an Activated, Lipid-Laden Nonclassical Monocyte Phenotype in Diabetes. — Diabetes, 2026-10-08 (PMID 42848212; literature)
- Ubiquitin-Like protein UBL1 orchestrates monocyte recruitment and pro-inflammatory macrophage activation in critical limb ischemia: Involving SUMOylation and stabilization of PER1. — Biochem Pharmacol, 2026-10-15 (PMID 42880551; literature)
- Lactate dehydrogenase A-dependent redox control of selective mRNA translation directs monocyte fate commitment. — Immunity, 2026-10-15 (PMID 42880261; literature)
- The aminoadamantane derivative 3F2 modulates monocyte and NK cell activation and restores immune mediators altered by Monkeypox virus stimuli. — Inflamm Res, 2026-10-17 (PMID 42892637; literature)
- Monocyte-Derived Dendritic Cell Activation Is Broadly Conserved Across Immune Phenotype-Specific Ovarian Tumor Lysate Pools, With Donor-Associated Variation in Response Magnitude. — J Leukoc Biol, 2026-10-16 (PMID 42885837; literature)
- Correspondence to letter to the editor on "Glutamate excreted by LepR+ BM-MSCs mitigates alcohol-associated liver disease by promoting IL-1R2+ monocyte migration". — Clin Mol Hepatol, 2026-10-29 (PMID 42958826; literature)
- Multicenter assessment of monocyte HLA-DR expression in whole blood: Proof of concept for inter-laboratory reproducibility within the PLATINIUM interventional trial. — Cytometry B Clin Cytom, 2026-10-28 (PMID 42947557; literature)