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OBJECTIVES: To determine the safety, pharmacokinetics, and immunomodulatory effects of 2-6 weeks of anakinra therapy in patients with acute Kawasaki disease with a coronary artery aneurysm (CAA). STUDY DESIGN: We performed a Phase I/IIa dose-escalation study of anakinra (2-11 mg/kg/day) in 22 patients with acute Kawasaki disease with CAA. We measured interleukin (IL)-1RA concentrations after the first dose and trough levels up to study week 6. Markers of inflammation and coronary artery z-scores were assessed pretreatment and at 48 hours, 2 weeks, and 6 weeks after initiation of therapy. RESULTS: Up to 6 weeks of anakinra (up to 11 mg/kg/day) was safe and well tolerated by the 22 participants (median age, 1.1 years), with no serious adverse events attributable to the study drug. All participants were treated with intravenous immunoglobulin (IVIG), and 20 also received infliximab (10 mg/kg) before initiation of anakinra. Serum levels of IL-6, IL-8, and tumor necrosis factor α decreased similarly in patients with Kawasaki disease treated with IVIG, infliximab, and anakinra compared with age- and sex-matched patients with Kawasaki disease treated only with IVIG and infliximab. Anakinra clearance increased with illness day at diagnosis. Simulations demonstrated that more frequent intravenous (IV) dosing may result in more sustained concentrations without significantly increasing the peak concentration compared with subcutaneous (SC) dosing. CONCLUSIONS: Both IV and SC anakinra are safe in infants and children with acute Kawasaki disease and CAA. IV dosing every 8-12 hours during the acute hospitalization of patients with Kawasaki disease may result in a sustained concentration while avoiding frequent SC injections. The efficacy of a short course of IV therapy during hospitalization should be studied. TRIAL REGISTRATION CLINICALTRIALS.GOV: NCT02179853.

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Abstract Acrylamide is a neurotoxic compound. Moreover, anakinra is an interleukin-1 (IL-1) receptor antagonist used in rheumatoid arthritis treatment. This study investigated the effect of anakinra on acrylamide-related neuropathy and neuropathic pain. Acrylamide exposure caused a significant decrease in the pain threshold; an increase in malondialdehyde (MDA), tumor necrosis factor-alpha (TNF-α), and interleukin-1 beta (IL-1ß) levels; and a decrease in total glutathione (tGSH) values in the sciatic nerve. This indicates hyperalgesia presence, oxidative stress, and peripheral nerve tissue inflammation. Anakinra treatment significantly reduced the MDA, IL-1ß, and TNF-α levels, and increased the pain threshold and mean tGSH values. The analgesic effect of anakinra was 67.9% at the first hour, increasing to 74.9% and 76.7% at the second and third hours, respectively. The group receiving acrylamide exhibited histopathological changes (e.g., swollen and degenerated axons, hypertrophic and hyperplasic Schwann cells, and congested vessels). The use of anakinra significantly improved these morphological changes. Anakinra is concluded to reduce neuropathic pain and prevent neurotoxic effect of acrylamide on peripheral nerves due to its analgesic, antioxidant, and anti-inflammatory properties

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Actualmente nos encontramos en una pandemia mundial causada por el coronavirus 2019 o COVID­19, presentando diferentes desafíos para el sistema de salud debido a que no se cuenta aún con alguna vacuna ni con un tratamiento que haya demostrado su eficacia en totalidad, siendo el manejo actual preventivo y de soporte. Por lo que, en esta revisión se estudiará a los fármacos antirreumáticos más resaltantes que tengan un probable efecto farmacológico, como son la hidroxicloroquina, el tocilizumab, el anakinra y el baricitinib, frente al COVID­19. Se espera que brinde apoyo para futuros tratamientos e investigaciones sobre la enfermedad.

We are currently in a global pandemic caused by the coronavirus 2019 or COVID-19, presenting different challenges for the health system due to the fact that there is still no vaccine or a treatment that has proven its effectiveness in its entirety, being the management current preventive and supportive. Therefore, this review will study the most prominent antirheumatic drugs that have a probable pharmacological effect, such as hydroxychloroquine, tocilizumab, anakinra and baricitinib, against COVID-19. It is expected that they will provide support for future treatments. and research on the disease

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RESUMEN Actualmente nos encontramos en una pandemia mundial causada por el coronavirus 2019 o COVID-19, presentando diferentes desafíos para el sistema de salud debido a que no se cuenta aún con alguna vacuna ni con un tratamiento que haya demostrado su eficacia en totalidad, siendo el manejo actual preventivo y de soporte. Por lo que, en esta revisión se estudiará a los fármacos antirreumáticos más resaltantes que tengan un probable efecto farmacológico, como son la hidroxicloroquina, el tocilizumab, el anakinra y el baricitinib, frente al COVID-19. Se espera que brinde apoyo para futuros tratamientos e investigaciones sobre la enfermedad.

ABSTRACT We are currently in a global pandemic caused by the coronavirus 2019 or COVID- 19, presenting different challenges for the health system due to the fact that there is still no vaccine or a treatment that has proven its effectiveness in its entirety, being the management current preventive and supportive. Therefore, this review will study the most prominent antirheumatic drugs that have a probable pharmacological effect, such as hydroxychloroquine, tocilizumab, anakinra and baricitinib, against COVID-19. It is expected that they will provide support for future treatments. and research on the disease.

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Decades ago, the study of cancer biology was mainly focused on the tumor itself, paying little attention to the tumor microenvironment (TME). Currently, it is well recognized that the TME plays a vital role in cancer development and progression, with emerging treatment strategies focusing on different components of the TME, including tumoral cells, blood vessels, fibroblasts, senescent cells, inflammatory cells, inflammatory factors, among others. There is a well-accepted relationship between chronic inflammation and cancer development. Interleukin-1 (IL-1), a potent pro-inflammatory cytokine commonly found at tumor sites, is considered one of the most important inflammatory factors in cancer, and has been related with carcinogenesis, tumor growth and metastasis. Increasing evidence has linked development of head and neck squamous cell carcinoma (HNSCC) with chronic inflammation, and particularly, with IL-1 signaling. This review focuses on the most important members of the IL-1 family, with emphasis on how their aberrant expression can promote HNSCC development and metastasis, highlighting possible clinical applications.

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Abstract İntroduction: Familial Mediterranean fever (FMF) is a hereditary auto-inflammatory disease characterized by recurrent fever and serosal inflammation. Anti-interleukin-1 (Anti-IL-1) treatments are recommended in colchicine resistant and/or intolerant FMF patients. This study aims to evaluate the efficacy of anakinra and canakinumab in FMF patients that are resistant/intolareted to colchicine or complicated with amyloidosis. Methods: Between January 2014 and March 2019, 65 patients following-up at Sivas Cumhuriyet University (Medical Faculty Rheumatology-Internal Medicine Department) who were diagnosed with FMF according to the criteria of Tel-Hashomer were included in the study. The laboratory values and clinical features of patients and disease activities were recorded at least every 3 months, and these data were analyzed. Results: Forty-one (63.1%) patients used anakinra (100 mg/day) and 24 (36.9%) patients used canakinumab (150 mg/8 week). The median duration of anti-IL-1 agents use was 7 months (range, 3-30). Fifteen (23.1%) cases were complicated with amyloidosis. Seven (10.8%) patients had renal transplantation. Overall, the FMF 50 score response was 96.9%. In the group that had a glomerular filtration rate (GFR) ≥ 60 ml/min/m2, the median proteinuria decreased from 2390 mg/day (range, 1400-7200) to 890 mg/day (range, 120-2750) (p = 0.008). No serious infections were detected, except in one patient. Conclusions: Anti-IL-1 agents are effective and safe in the treatment of FMF patients. These agents are particularly effective at reducing proteinuria in patients with GFR ≥ 60 ml/min/m2, but less effective in cases with FMF associated with arthritis and sacroiliitis. Large and long follow-up studies are now needed to establish the long-term effects of these treatments.

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OBJECTIVE: To seek predictors of therapeutic response to the interleukin (IL)-1 inhibitor anakinra in children with systemic-onset juvenile idiopathic arthritis (sJIA). METHODS: The clinical charts of all patients with sJIA who were newly treated with anakinra at our center between 2004 and 2017 were reviewed retrospectively. Predictors included baseline demographic, clinical, and laboratory variables as well as previous or concomitant therapies. The effectiveness of anakinra was assessed at 1 year after treatment start. Complete clinical response (CCR) was defined as absence of fever, physician's global assessment ≤ 1, count of active joints ≤ 1, negative C-reactive protein, and ≥ 75% reduction of corticosteroid dose. According to the intention-to-treat principle, patients who had anakinra discontinued before 1 year for any reasons other than disease remission were classified as nonresponders. Statistics included univariate and multivariable analyses. RESULTS: Of the 62 patients included in the study, 24 (39%) met the criteria for CCR at 1 year, whereas 38 (61%) did not. On multivariable analysis, independent correlations with achievement of CCR were identified for shorter disease duration, lower active joint count, higher ferritin level, and greater activity of systemic manifestations. The area under the curve of the model was 0.83. CONCLUSION: Our findings help to delineate the clinical profile of patients with sJIA who are more likely to benefit from IL-1 blockade. They also underscore the need for studies aimed at examining the therapeutic role of early IL-1 inhibition and to identify biomarkers predicting response to either IL-1 or IL-6 antagonists.

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Cistite hemorrágica (CH) induzida por ifosfamida (IFO) é uma importante complicação clínica em pacientes com câncer. Atualmente, mesna e hiper-hidratação são utilizadas como profilaxia, a despeito de ainda ser observada CH através de cistoscopia e histopatologia mesmo com essas medidas. A participação de interleucina-1 (IL-1) e fator de necrose tumoral (TNF) na patogênese da CH provê alvos para o tratamento dessa doença. Assim, esse trabalho objetivou avaliar o efeito protetor do antagonista do receptor da IL-1 (anakinra) e do anticorpo anti-TNF-alfa (infliximabe) nas respostas inflamatórias, nociceptivas e funcionais da CH experimental induzida por IFO em camundongos. Foram utilizados camundongos Swiss, C57BL6, IL-1R-/-, CASP1-/-, TNFR1-/-, TNFR1/R2-/-. Os animais WT foram submetidos ao tratamento com anakinra 100 mg/kg i.p. ou infliximabe 5 mg/kgi.p. ou salina i.p., foram tratados 1h após com IFO 400 mg/kg i.p., e 12 h após a IFO foi realizado o sacrifício, com excisão das bexigas para avaliaçãomacroscópica, histopatológica, permeabilidade vascular, mieloperoxidase, contratilidade, cistometrografia e citometria de fluxo para neutrófilos e macrófagos. Alguns animais, antes do sacrifício, foram submetidos a avaliação de nocicepção visceral. Anakinra foi capaz de atenuar hemorragia, edema, infiltrado neutrofílico, hipernocicepção visceral e disfunção vesical...

Hemorrhagic cystitis (HC) induced by ifosfamide (IFO) is an importantclinical complication in patients with cancer. Despite prophylaxis, HC isobserved. The role of interleukin-1 (IL-1) and tumor necrosis factor (TNF) in the pathogenesis of HC provides targets for treatment. Thus, this study aimed to evaluate the protective effect of the IL-1 receptor antagonist (anakinra) and anti-TNF-alpha antibody (infliximab) in experimental HC-induced by IFO in mice. Swiss , C57BL6 , IL -1R-/-, CASP1-/-, TNFR1-/-, TNFR1/R2-/-mice were used. Animals were submitted to pre-treatment with anakinra 100 mg/ kg, ip or infliximab 5 mg/ Kg, ip, or saline ip, 1h after, they were treated with IFO 400 mg/ kg ip, and 12 h after IFO injection they were killed. Then, it was performed resection of the bladder for macroscopic and histopathological evaluation, vascular permeability assay, myeloperoxidase assay, muscle contractility, cistometrogram and flow cytometry to neutrophils andmacrophages. Some animals prior to death, were subjected to evaluation of visceral nociception. Anakinra was able to attenuate hemorrhage, edema, neutrophil infiltration, visceral hypernociception and bladder dysfunction...

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