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Updated: Dec 22, 2025

Flow Cytometry-Based Quantification and Analysis of Myocardial B-Cells
Published on: August 17, 2022
Unlocking the Value of White Blood Cells for Heart Failure Diagnosis
Stefan Meier1,2, Michiel Henkens2,3, Stephane Heymans2,3,4
1Faculty of Science and Engineering, Maastricht University, 6211 KR, Maastricht, The Netherlands.
Insights
Heart failure biomarkers are improving. Peripheral blood mononuclear cells (PBMCs) offer a promising new source for early detection and diagnosis of heart failure, improving patient outcomes.
Area of Science:
- Cardiology
- Biomarker Discovery
- Cellular Biology
Background:
- Cardiovascular disease (CVD) is a leading global cause of death, with heart failure accounting for a significant portion of fatalities.
- Current heart failure biomarkers like NT-pro-BNP and ejection fraction have limitations in sensitivity for many patients.
- Peripheral blood mononuclear cells (PBMCs) are emerging as accessible surrogate tissues reflecting cardiac molecular changes.
Purpose of the Study:
- To highlight the potential of PBMCs as a novel biomarker source for heart failure.
- To discuss the advantages and limitations of using PBMCs for heart failure diagnostics.
- To advocate for the collection and storage of PBMCs in biobanks for future research.
Main Methods:
- Review of current literature on heart failure biomarkers.
- Analysis of the utility of circulating white blood cells, specifically PBMCs, as surrogate biopsies.
- Discussion of practical considerations for biobanking and biomarker isolation.
Main Results:
- PBMCs offer advantages as biomarkers due to their accessibility and reflective capacity of cardiac molecular status.
- Existing biomarkers like ejection fraction and NT-pro-BNP show insufficient sensitivity in certain heart failure cases.
- PBMCs represent a rich source for discovering novel diagnostic tools for heart failure.
Conclusions:
- PBMCs show significant promise as a novel biomarker source for heart failure detection and diagnosis.
- Standardizing the collection and storage of PBMCs in biobanks is crucial for advancing heart failure research.
- Further research utilizing PBMCs could lead to improved diagnostic accuracy and patient prognosis in heart failure.
Abstract:
Cardiovascular disease (CVD) is the single greatest cause of mortality and morbidity worldwide. Inciting 85% of CVD fatalities is heart failure, often resulting in or from a myocardial infarction. Early detection along with pharmacological treatment and lifestyle adaptation can result in better prognosis. Biomarkers are molecular or physiological measures that indicate disease presence, status, and severity. However, not all forms of heart failure are created equal. Current mainstay biomarkers for heart failure, including NT-pro-BNP and ejection fraction, lack sensitivity for many patients. Circulating white blood cells and peripheral blood mononuclear cells (PBMCs) are emerging as surrogate biopsies, reflecting molecular changes in the heart. We discuss the advantages of PBMCs over other sources, as well as limitations and considerations. We urge medical center biobanks to collect, isolate and store circulating white blood cells as a rich source of biomarkers to catalyze the discovery of novel diagnostic tools for heart failure.
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