Research Article

Analysis of Oxidative Burst Capacity of Neutrophils in Buffy-Coat Concentrates

Volume: 51 Number: 2 August 28, 2025
TR EN

Analysis of Oxidative Burst Capacity of Neutrophils in Buffy-Coat Concentrates

Abstract

Buffy-Coat concentrates (BFCs) can be transfused to provide neutrophil support in patients with febrile neutropenia. In this study, the oxidative burst capacity of neutrophils in BFC was investigated in 12 hours-stored BFCs (n=16). Samples taken from healthy volunteers (n=7) (fresh EDTA; fEDTA) and taken before donation from blood donors who donated BFCs (n=16) (donor EDTA; dEDTA) were included. fEDTA and dEDTA samples were used to compare the effect of time. Nitroblue tetrazolium (NBT) test was performed to evaluate the oxidative burst. Different titrations (1:16, 1:32, 1:64, 1:128) of phorbol myristate acetate (PMA) were used. BFC samples without PMA addition were used as negative control (NC). While similar results were obtained in BFC samples with fEDTA samples in NC, oxidative activity was statistically high in the dEDTA samples. These results suggested that neutrophils in dEDTA may be spontaneously activated. In all PMA titrations except 1:64 PMA titers, the oxidative burst capacity in dEDTA and BFC samples was significantly lower than that in fEDTA samples. Also, oxidative burst significantly decreased in fEDTA-dEDTA-BFC in all PMA titrations. Spontaneous burst was detected in dEDTA samples under PMA-free conditions, but not in BFC samples, indicating that the additive solution in BFC protected neutrophils from spontaneous activation. Despite the statistically significant decrease, neutrophils in BFCs can remain functional due to their high oxidative activity at all titers (above 75%). This indicates that they can function when transfused. This result also shows that we can use BFCs as a source of neutrophils in experiments.

Keywords

Project Number

Sahip olunan kaynaklarla yürütülmüştür. Bir proje kapsamında değildir.

References

  1. 1.Blanter M, Gouwy M, Struyf S. Studying Neutrophil Function in vitro: Cell Models and Environmental Factors. J Inflamm Res. 2021;14:141-162. doi:10.2147/JIR.S284941
  2. 2.Gupta S, Chan DW, Zaal KJ, Kaplan MJ. A High-Throughput Real-Time Imaging Technique To Quantify NETosis andDistinguish Mechanisms of Cell Death in Human Neutrophils. J Immunol. 2018;200(2):869-879. doi:10.4049/JIMMUNOL.1700905
  3. 3.Zhang N, Aiyasiding X, Li W jing, Liao H han, Tang Q zhu.Neutrophil degranulation and myocardial infarction. CellCommun Signal. 2022;20(1):1-23. doi:10.1186/S12964-022-00824-4
  4. 4.Griffin FM, Griffin JA, Leider JE, Silverstein SC. Studies onthe mechanism of phagocytosis. I. Requirements for circumferential attachment of particle-bound ligands to specific receptors on the macrophage plasma membrane. J Exp Med. 1975;142(5):1263-1282. doi:10.1084/JEM.142.5.1263
  5. 5.Nordenfelt P, Tapper H. Phagosome dynamics during phagocytosis by neutrophils. J Leukoc Biol. 2011;90(2):271-284. doi:10.1189/JLB.0810457
  6. 6.Naish E, Wood AJT, Stewart AP, et al. The formation and function of the neutrophil phagosome. Immunol Rev.2023;314(1):158-180. doi:10.1111/IMR.13173
  7. 7.Estcourt LJ, Stanworth S, Doree C, et al. Granulocytetransfusions for preventing infections in people withneutropenia or neutrophil dysfunction. Cochrane database Syst Rev. 2015;2015(6):1-65. doi:10.1002/14651858.CD005341.PUB3
  8. 8.Estcourt LJ, Stanworth SJ, Hopewell S, Doree C, Trivella M,Massey E. Granulocyte transfusions for treating infections in people with neutropenia or neutrophil dysfunction. Cochrane Database Syst Rev. 2016;2016(4):1-76. doi:10.1002/14651858.CD005339.PUB2

Details

Primary Language

English

Subjects

Immunology (Other)

Journal Section

Research Article

Publication Date

August 28, 2025

Submission Date

April 12, 2025

Acceptance Date

June 2, 2025

Published in Issue

Year 2025 Volume: 51 Number: 2

APA
Bal, S. H., Yöyen Ermiş, D., Vardar, H., Özveri, İ., Heper, Y., & Oral, H. B. (2025). Analysis of Oxidative Burst Capacity of Neutrophils in Buffy-Coat Concentrates. Journal of Uludağ University Medical Faculty, 51(2), 175-180. https://doi.org/10.32708/uutfd.1673509
AMA
1.Bal SH, Yöyen Ermiş D, Vardar H, Özveri İ, Heper Y, Oral HB. Analysis of Oxidative Burst Capacity of Neutrophils in Buffy-Coat Concentrates. Journal of Uludağ University Medical Faculty. 2025;51(2):175-180. doi:10.32708/uutfd.1673509
Chicago
Bal, Salih Haldun, Diğdem Yöyen Ermiş, Hilal Vardar, İrem Özveri, Yasemin Heper, and Haluk Barbaros Oral. 2025. “Analysis of Oxidative Burst Capacity of Neutrophils in Buffy-Coat Concentrates”. Journal of Uludağ University Medical Faculty 51 (2): 175-80. https://doi.org/10.32708/uutfd.1673509.
EndNote
Bal SH, Yöyen Ermiş D, Vardar H, Özveri İ, Heper Y, Oral HB (August 1, 2025) Analysis of Oxidative Burst Capacity of Neutrophils in Buffy-Coat Concentrates. Journal of Uludağ University Medical Faculty 51 2 175–180.
IEEE
[1]S. H. Bal, D. Yöyen Ermiş, H. Vardar, İ. Özveri, Y. Heper, and H. B. Oral, “Analysis of Oxidative Burst Capacity of Neutrophils in Buffy-Coat Concentrates”, Journal of Uludağ University Medical Faculty, vol. 51, no. 2, pp. 175–180, Aug. 2025, doi: 10.32708/uutfd.1673509.
ISNAD
Bal, Salih Haldun - Yöyen Ermiş, Diğdem - Vardar, Hilal - Özveri, İrem - Heper, Yasemin - Oral, Haluk Barbaros. “Analysis of Oxidative Burst Capacity of Neutrophils in Buffy-Coat Concentrates”. Journal of Uludağ University Medical Faculty 51/2 (August 1, 2025): 175-180. https://doi.org/10.32708/uutfd.1673509.
JAMA
1.Bal SH, Yöyen Ermiş D, Vardar H, Özveri İ, Heper Y, Oral HB. Analysis of Oxidative Burst Capacity of Neutrophils in Buffy-Coat Concentrates. Journal of Uludağ University Medical Faculty. 2025;51:175–180.
MLA
Bal, Salih Haldun, et al. “Analysis of Oxidative Burst Capacity of Neutrophils in Buffy-Coat Concentrates”. Journal of Uludağ University Medical Faculty, vol. 51, no. 2, Aug. 2025, pp. 175-80, doi:10.32708/uutfd.1673509.
Vancouver
1.Salih Haldun Bal, Diğdem Yöyen Ermiş, Hilal Vardar, İrem Özveri, Yasemin Heper, Haluk Barbaros Oral. Analysis of Oxidative Burst Capacity of Neutrophils in Buffy-Coat Concentrates. Journal of Uludağ University Medical Faculty. 2025 Aug. 1;51(2):175-80. doi:10.32708/uutfd.1673509

ISSN: 1300-414X, e-ISSN: 2645-9027

Creative Commons License
Journal of Uludag University Medical Faculty is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
2023