Journal of oral pathology & medicine : official publication of the International Association of Oral Pathologists and the American Academy of Oral Pathology · 2020
Association of salivary inflammatory biomarkers with primary Sjögren's syndrome.
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Moreno-Quispe Luz A, Serrano Julia, Virto Leire, Sanz Mariano, Ramírez Lucía, Fernández-Castro Mónica, Hernández Gonzalo, López-Pintor Rosa María
Аннотация
BACKGROUND: Primary Sjogren's syndrome (pSS) is an autoimmune disease that leads to salivary and lacrimal gland dysfunction. The adaptive immune response associated with T helper-2 lymphocytes appears to be altered in these patients. Therefore, the objective of this study was to determine the salivary levels of interleukin (IL)-6, IL-5, and IL-4 in patients with pSS when compared to a healthy control (HC) group. The secondary objectives were to study whether ILs levels in pSS patients were associated with salivary flow, patient-reported outcomes (PROMs) for xerostomia and oral health quality of life (Oral Health Impact Profile-14 [OHIP-14]), pSS classification criteria and presence of extraglandular manifestations.
METHODS: A case-control study was conducted in 36 patients with pSS and 35 HCs. Cytokine levels were measured using high-sensitivity multiplex map human immunoassays. Unstimulated and stimulated whole saliva were collected and patients filled out questionnaires. The Mann-Whitney U test, chi-squared test, and Spearman correlation test were used.
RESULTS: Interleukin-6 was significantly higher in pSS patients than in HCs (P = .0001). IL-6 was significantly higher in pSS patients with a positive salivary gland biopsy (P = .04), whole stimulated saliva hyposalivation (P = .02), and presence of musculoskeletal disorders (P = .03). There was a non-significant positive correlation between IL-6 levels and PROMs for xerostomia (r = .31; P = .06) and OHIP-14 (r = .07; P = .68) in pSS patients. Levels of IL-4 and IL-5 were not detected in both pSS and HCs patients.
CONCLUSIONS: Salivary IL-6 levels are significantly associated with pSS patients, and therefore, it is hypothesized that this biomarker may be useful in the diagnosis and follow-up of this disease.
METHODS: A case-control study was conducted in 36 patients with pSS and 35 HCs. Cytokine levels were measured using high-sensitivity multiplex map human immunoassays. Unstimulated and stimulated whole saliva were collected and patients filled out questionnaires. The Mann-Whitney U test, chi-squared test, and Spearman correlation test were used.
RESULTS: Interleukin-6 was significantly higher in pSS patients than in HCs (P = .0001). IL-6 was significantly higher in pSS patients with a positive salivary gland biopsy (P = .04), whole stimulated saliva hyposalivation (P = .02), and presence of musculoskeletal disorders (P = .03). There was a non-significant positive correlation between IL-6 levels and PROMs for xerostomia (r = .31; P = .06) and OHIP-14 (r = .07; P = .68) in pSS patients. Levels of IL-4 and IL-5 were not detected in both pSS and HCs patients.
CONCLUSIONS: Salivary IL-6 levels are significantly associated with pSS patients, and therefore, it is hypothesized that this biomarker may be useful in the diagnosis and follow-up of this disease.