The role of anti-HMGB1 antibody and anti-moesin antibody in ANCA-associated vasculitis / Papel de los anticuerpos anti-HMGB1 y antimoesina en la vasculitis asociada a ANCA

Objective The study aims to evaluate the role of anti-high mobility group box 1 (HMGB1) antibody and anti-moesin antibody in the diagnosis of antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV) and its possible relationship with the different clinical manifestations. Methods The study involved 60 AAV patients, 58 patients with autoimmune disease other than AAV and 50 healthy subjects. The serum levels of anti-HMGB1 and anti-moesin antibodies were determined by enzyme-linked immunosorbent assay (ELISA), and the second determination was made 3 months after treatment of AAV patients. Results Serum levels of anti-HMGB1 and anti-moesin antibodies in AAV group were significantly higher than those in non-AAV group and HC group. The area under the curve (AUC) of anti-HMGB1 and anti-moesin in diagnosing AAV were 0.977 and 0.670, respectively. Anti-HMGB1 levels were significantly elevated in AAV patients with pulmonary involvement, while the concentrations of anti-moesin were significantly increased in patients with renal damage. Anti-moesin were positively correlated with BVAS (r=0.261, P=0.044), creatinine (r=0.296, P=0.024) and negatively correlated with complement C3 (r=−0.363, P=0.013). Besides, anti-moesin levels of active AAV patients were significantly higher than those in inactive patients. The concentrations of serum anti-HMGB1 could be significantly decreased after induction remission treatment (P<0.05). Conclusion Anti-HMGB1 and anti-moesin antibodies play important roles in the diagnosis and prognosis of AAV, which may act as potential disease markers for AAV (AU)

Objetivo El estudio tiene como objetivo evaluar el papel del anticuerpo antigrupo de alta movilidad box 1 (HMGB1) y el anticuerpo antimoesina en el diagnóstico de la vasculitis asociada (VAA) a anticuerpos citoplasmáticos antineutrófilos (ANCA) y su posible relación con las diferentes manifestaciones clínicas. Métodos En el estudio participaron 60 pacientes con VAA, 58 pacientes con enfermedad autoinmune distinta de la VAA y 50 sujetos sanos. Los niveles séricos de anticuerpos anti-HMGB1 y antimoesina se determinaron mediante ensayo inmunoabsorbente ligado a enzimas (ELISA), y la segunda determinación se realizó tres meses después del tratamiento de pacientes con VAA. Resultados Los niveles séricos de anticuerpos anti-HMGB1 y antimoesina en el grupo AAV fueron significativamente más altos que los del grupo sin VAA y el grupo control sanitario. El área bajo la curva (AUC) de anti-HMGB1 y antimoesina en el diagnóstico de VAA fueron 0,977 y 0,670, respectivamente. Los niveles de anti-HMGB1 se elevaron significativamente en pacientes con VAA con afectación pulmonar, mientras que las concentraciones de antimoesina aumentaron significativamente en pacientes con daño renal. La antimoesina se correlacionó positivamente con puntuación de actividad vascular de Birmingham (r=0,261, p=0,044), creatinina (r=0,296, p=0,024) y se correlacionó negativamente con el complemento C3 (r=−0,363, p=0,013). Además, los niveles de antimoesina de los pacientes activos con VAA fueron significativamente más altos que los de los pacientes inactivos. Las concentraciones séricas de anti-HMGB1 podrían disminuir significativamente después del tratamiento de remisión de inducción (p<0,05). Conclusión Los anticuerpos anti-HMGB1 y antimoesina juegan un papel importante en el diagnóstico y pronóstico de VAA, que pueden actuar como marcadores potenciales de enfermedad para VAA (AU)

The role of anti-HMGB1 antibody and anti-moesin antibody in ANCA-associated vasculitis.

OBJECTIVE: The study aims to evaluate the role of anti-high mobility group box 1 (HMGB1) antibody and anti-moesin antibody in the diagnosis of antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV) and its possible relationship with the different clinical manifestations. METHODS: The study involved 60 AAV patients, 58 patients with autoimmune disease other than AAV and 50 healthy subjects. The serum levels of anti-HMGB1 and anti-moesin antibodies were determined by enzyme-linked immunosorbent assay (ELISA), and the second determination was made 3 months after treatment of AAV patients. RESULTS: Serum levels of anti-HMGB1 and anti-moesin antibodies in AAV group were significantly higher than those in non-AAV group and HC group. The area under the curve (AUC) of anti-HMGB1 and anti-moesin in diagnosing AAV were 0.977 and 0.670, respectively. Anti-HMGB1 levels were significantly elevated in AAV patients with pulmonary involvement, while the concentrations of anti-moesin were significantly increased in patients with renal damage. Anti-moesin were positively correlated with BVAS (r=0.261, P=0.044), creatinine (r=0.296, P=0.024) and negatively correlated with complement C3 (r=-0.363, P=0.013). Besides, anti-moesin levels of active AAV patients were significantly higher than those in inactive patients. The concentrations of serum anti-HMGB1 could be significantly decreased after induction remission treatment (P<0.05). CONCLUSION: Anti-HMGB1 and anti-moesin antibodies play important roles in the diagnosis and prognosis of AAV, which may act as potential disease markers for AAV.

Targeting Inflammation Driven by HMGB1 in Bacterial Keratitis-A Review.

Pseudomonas (P.) aeruginosa is a Gram-negative bacteria that causes human infectionsinfections. It can cause keratitis, a severe eye infection, that develops quickly and is a major cause of ulceration of the cornea and ocular complications globally. Contact lens wear is the greatest causative reason in developed countries, but in other countries, trauma and predominates. Use of non-human models of the disease are critical and may provide promising alternative argets for therapy to bolster a lack of new antibiotics and increasing antibiotic resistance. In this regard, we have shown promising data after inhibiting high mobility group box 1 (HMGB1), using small interfering RNA (siRNA). Success has also been obtained after other means to inhinit HMGB1 and include: use of HMGB1 Box A (one of three HMGB1 domains), anti-HMGB1 antibody blockage of HMGB1 and/or its receptors, Toll like receptor (TLR) 4, treatment with thrombomodulin (TM) or vasoactive intestinal peptide (VIP) and glycyrrhizin (GLY, a triterpenoid saponin) that directly binds to HMGB1. ReducingHMGB1 levels in P. aeruginosa keratitis appears a viable treatment alternative.