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A preliminary study of tracking B-cell kinetics in patients with lung transplantation by monitoring kappa-deleting recombination excision circles

BACKGROUND: This study aims to evaluate humoral immune system response by measuring copy numbers of kappa-deleting recombination excision circles (KREC) gene segment from B lymphocytes in patients with lung transplantation. METHODS: Between September 2015 and November 2016, a total of 11 patients (8...

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Detalles Bibliográficos
Autores principales: Akbulut, Zeynep, Akdeniz, Tuba, Vayvada, Mustafa, Kalamanoğlu, Merih, Yeğinsu, Ali, Yanıkkaya Demirel, Gülderen, Kutlu, Cemal Asım
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Bayçınar Medical Publishing 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9801467/
https://www.ncbi.nlm.nih.gov/pubmed/36605322
http://dx.doi.org/10.5606/tgkdc.dergisi.2022.21672
Descripción
Sumario:BACKGROUND: This study aims to evaluate humoral immune system response by measuring copy numbers of kappa-deleting recombination excision circles (KREC) gene segment from B lymphocytes in patients with lung transplantation. METHODS: Between September 2015 and November 2016, a total of 11 patients (8 males, 3 females; mean age: 45.4±12.0 years; range, 23 to 59 years) who underwent lung transplantation with different primary indications were included. The copy numbers of KREC gene segment were quantified using real-time polymerase chain reaction method in peripheral blood samples collected pre- and post-transplantation. The samples of the patients were compared with the KREC l evels i n deoxyribonucleic acid extracted from blood samples of healthy children. RESULTS: There was no significant change in KREC levels between pre- and post-operation (p=0.594 and p=0.657), although the median values indicated that the highest increase in the KREC levels (7x105- 12x105; 85-170) was on Day 7 of transplantation. There was a positive correlation between the KREC levels (mL in blood) and lymphocytes at 24 h after transplantation (p=0.043) and between KREC copies per 106 of blood and age on Day 7. CONCLUSION: Our preliminary results suggest that KREC l evels a s an indicator of B lymphocyte production are elevated after lung transplantation. A prognostic algorithm by tracking B cell kinetics after post-transplantation for long-term follow-up can be developed following the confirmation of these preliminary results with more patient samples.