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USE OF A THRESHOLD OF INTERLEUKIN-10 AND IL-10/IL-6 RATIO IN OCULAR SAMPLES FOR THE SCREENING OF VITREORETINAL
Celine Pochat-Cotilloux1, Jacques Bienvenu2, Anh-Minh Nguyen1
1Department of Ophthalmology, Croix-Rousse University Hospital, Hospices Civils de Lyon, University of Lyon I, Lyon, France.
Purpose:
To determine a threshold for interleukin (IL)-10 and IL-10/IL-6 ratio in the aqueous humor (AH) and the vitreous for the screening of vitreoretinal lymphoma (VRL).
Methods:
One hundred nineteen patients for whom IL-10 and IL-6 in the AH and/or vitreous had been measured were included: 16 patients with a final diagnosis of VRL and 103 patients with final diagnosis of uveitis. Groups were compared according to IL-10 and IL-6 levels and demographic data.
Results:
In patients with VRL (Group 1), mean IL-10 values were 5,636 pg/mL, and in patients with uveitis (Group 2), 6.7 pg/mL in the vitreous and 190 pg/mL in Group 1 and 8.6 pg/mL in the AH. In Group 1, the mean IL-10/IL-6 ratio was 29.02 in the vitreous and 10.9 in the AH; in Group 2, ratio was 0.1 in both humors. These values were significantly different between patients with VRL and with uveitis (P < 0.001). A cutoff of 65 pg/mL and 30 pg/mL IL-10 in the vitreous and AH, respectively, was associated with sensitivity of 93% and 78%, respectively, and specificity of 100% and 97%, respectively. A ratio higher than 1 in the vitreous had sensitivity of 93% and specificity of 100%.
Conclusion:
Vitreoretinal lymphoma diagnosis is difficult, and tools like interleukin measurements in AH and vitreous can make it easier. The use of a cutoff for IL-10 and IL-10/IL-6 ratio could allow for an earlier diagnosis that may improve prognosis.
