TY - JOUR TI - Elevated interleukin-10: A new cause of dyslipidemia leading to severe HDL deficiency AU - Moraitis, Andreas G. AU - Freeman, Lita A. AU - Shamburek, Robert D. and AU - Wesley, Robert AU - Wilson, Wyndham AU - Grant, Cliona M. AU - Price, Susan AU - and Demosky, Stephen AU - Thacker, Seth G. AU - Zarzour, Abdalrahman and AU - Hornung, Ronald L. AU - Pucino, Frank AU - Csako, Gyorgy AU - Yarboro, AU - Cheryl AU - McInnes, Iain B. AU - Kuroiwa, Takashi AU - Boumpas, Dimitrios AU - and Rao, V. Koneti AU - Illei, Gabor G. AU - Remaley, Alan T. JO - Journal of Clinical Lipidology PY - 2015 VL - 9 TODO - 1 SP - 81-90 PB - EXCERPTA MEDICA INC-ELSEVIER SCIENCE INC SN - 1933-2874 TODO - 10.1016/j.jacl.2014.09.014 TODO - “Disappearing HDL syndrome”; Severe HDL deficiency; Hypertriglyceridemia; Dyslipidemia; B-cell lymphoma; Intravascular large B-cell lymphoma; ALPS; Psoriasis; IL-10; LCAT TODO - BACKGROUND: Low high-density lipoprotein cholesterol (HDL-C) is a risk factor for coronary artery disease. Investigating mechanisms underlying acquired severe HDL deficiency in noncritically ill patients (”disappearing EIDL syndrome”) could provide new insights into HDL metabolism. OBJECTIVE: To determine the cause of low HDL-C in patients with severe acquired HDL deficiency. METHODS AND RESULTS: Patients with intravascular large B-cell lymphoma (n = 2), diffuse large B-cell lymphoma (n = 1), and autoimmune lymphoproliferative syndrome (n = 1) presenting with markedly decreased EIDL-C, low low-density lipoprotein cholesterol (LDL-C), and elevated triglycerides were identified. The abnormal lipoprotein profile returned to normal after therapy in all 4 patients. All patients were found to have markedly elevated serum interleukin-10 (IL-10) levels that also normalized after therapy. In a cohort of autoimmune lymphoproliferative syndrome patients (n = 93), IL-10 showed a strong inverse correlation with HDL-C (R-2 = 0.3720, P < .0001). A direct causal role for increased serum IL-10 in inducing the observed changes in lipoproteins was established in a randomized, placebo-controlled clinical trial of recombinant human IL-10 in psoriatic arthritis patients (n = 18). Within a week of initiating subcutaneous recombinant human IL-10 injections, HDL-C precipitously decreased to near-undetectable levels. LDL-C also decreased by more than 50% (P < .0001) and triglycerides increased by approximately 2-fold (P < .005). All values returned to baseline after discontinuing IL-10 therapy. CONCLUSION: Increased IL-10 causes severe HDL-C deficiency, low LDL-C, and elevated triglycerides. IL-10 is thus a potent modulator of lipoprotein levels, a potential new biomarker for B-cell disorders, and a novel cause of disappearing HDL syndrome. Published by Elsevier Inc. on behalf of National Lipid Association. ER -