Abstract
Aim. To determine the saliva level of immunoregulatory proteins in patients with rampant caries and 25-hydroxyvitamin D (25(OH)D) deficiency and evaluate the association of their concentration with 25(OH)D plasma level.Materials and methods. The study was performed in two groups. The experimental group included 15 patients aged 20–22 years with rampant caries and the 25(OH)D plasma level of < 20 ng / ml. The control group encompassed 15 healthy age-matched volunteers with the 25(OH)D plasma level of 20–100 ng / ml. The concentrations of B7.2 (CD86), free active TGF-β1, CTLA-4, PD-1, Tim-3, LAG-3, IGFBP-4, and ICAM-1 were assessed using flow cytometry. The levels of LL-37 and secretory immunoglobulin A (sIgA) were measured using ELISA. The Spearman’s rank correlation coefficient was used to reveal a correlation between the indicated proteins and the 25(OH)D plasma level.Results. A decrease in B7.2 (CD86), PD-1, Tim-3, sIgA, and LL-37 and elevation of IGFBP-4 and ICAM-1 saliva levels were detected in patients with rampant caries and 25-hydroxyvitamin D deficiency. A positive Spearman’s rank correlation coefficient was revealed between plasma 25(OH)D and saliva levels of free active TGF-β1, CTLA4, B7.2 (CD86), LL-37, and sIgA. A negative correlation was revealed between 25(OH)Dand ICAM-1.Conclusion. 25(OH)D deficiency in patients with rampant caries is associated with decreased levels of B7.2 (CD86), PD-1, Tim-3, sIgA, and LL-37 and elevated levels of IGFBP-4 and ICAM-1 in the saliva.
Highlights
Цель – оценить содержание иммунорегуляторных молекул в слюне у лиц с множественным кариесом и дефицитом 25(OH)D3 и определить взаимосвязи их величин с концентрацией 25(OH)D3 в крови
A decrease in B7.2 (CD86), PD-1, Tim-3, secretory immunoglobulin A (sIgA), and LL-37 and elevation of IGFBP-4 and ICAM-1 saliva levels were detected in patients with rampant caries and 25-hydroxyvitamin D deficiency
25(OH)D deficiency in patients with rampant caries is associated with decreased levels of B7.2 (CD86), PD-1, Tim-3, sIgA, and LL-37 and elevated levels of IGFBP-4 and ICAM-1 in the saliva
Summary
В ротовой жидкости определены концентрации растворимых форм молекул B7.2 (CD86), Free Active TGF-b1, CTLA-4, PD-1, Tim-3, LAG-3, IGFBP-4, ICAM-1 методом проточной цитофлуометрии, количество кателицидина LL-37, секреторного иммуноглобулина A (IgA) методом иммуноферментного анализа. У лиц с кариесом и дефицитом витамина D выявлено снижение значений Free Active TGF-b1, B7.2 (CD86), PD-1, Tim-3, sIgA, кателицидина LL-37 и повышение уровня IGFBP-4 и ICAM-1 в слюне. Обнаружено наличие прямых корреляционных связей между количеством 25(OH)D3 в крови, с одной стороны, и значениями Free Active TGF-b1, CTLA-4, В7.2 (CD86), секреторного IgA, пептида LL-37 – с другой. На фоне дефицита витамина D при множественном кариесе в ротовой жидкости регистрируются низкие концентрации Free Active TGF-b1, B7.2 (CD86), PD-1, Tim-3, секреторного IgA, кателицидина LL-37 по сравнению с контролем, но увеличены значения IGFBP-4 и ICAM-1. Авторы заявляют об отсутствии финансирования при проведении исследования.
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