Rabbit Anti-Human Annexin A1 monoclonal antibody, clone 8I57M37

Background: Annexin A1 (ANXA1) is an important anti-inflammatory mediator that may play a significant role in bronchial asthma. MiR-196a2 can target ANXA1 and therefore may play a rote in the pathogenesis of asthma. Aim of study: This is the first study which aimed to evaluate the expression of miR-196a2 in the serum of asthmatic children and correlate its expression with ANXA1 serum level and asthma severity. Subjects and methods: The study included 100 asthma patients who were subdivided into three groups (mild, moderate and severe) and 50 healthy control subjects. Assessment of miR-196a2 expression and ANXA1 serum level were done using quantitative reverse transcriptase PCR (RT qPCR) and Elisa techniques, respectively. Results: Compared to the control group, asthmatic children showed an increased ANXA1 serum level and decreased expression of miR-196a2 (p= 0.001). However, ANXA1 serum level was lower and miR-196a2 expression was higher in severe asthmatic patients compared to moderate asthmatic ones (p = 0.01, 0.03). Pearson's correlation coefficient revealed no significant correlations between ANXA1 serum level and miR-196a2 expression in the patient group (p=0.9). Conclusions: Altered miR-196a2 expression and serum ANXA1 concentration may play a role in the pathogenesis of asthma. In addition, ANXA1 and miR-196a2 may represent potential diagnostic biomarkers for asthma and future targets for therapy. (C) 2020 SEICAP. Published by Elsevier Espana, S.L.U. All rights reserved.

Background Research on diagnosing recurrent non-small cell lung cancer (NSCLC) and applying target gene treatment using exosomes in a less invasive way is very important. Recently, however, it has been argued that exosomes do not contain double-stranded DNA (dsDNA) or histones. In this study, we describe the expression of extracellular vesicle (EV) markers in specimens from squamous cell carcinoma (SCC) of the lung and analyze their relationship with the prognosis of patients. Methods Clinical and pathological data were obtained from 96 patients who had undergone surgery for SCC of the lung. Tissue microarray blocks were made using representative paraffin blocks of samples from patients with SCC of the lung. Two pathologists graded the intensity of CD63, CD9, LC3A/B, P62, and ANXA1 expression as high or low expression. In addition, the authors designated the combined expression of these five independent markers as "positive EV expression" in this article. Results SCCs with low CD63 and SCCs with low EV expression showed unfavorable disease-free survival (DFS) (P-value = 0.037 and 0.006, respectively) in the survival analysis. The Kaplan-Meier survival curve confirmed that the low EV expression showed a statistically significant relationship with unfavorable DFS (P-value = 0.004). There were no statistically significant differences in DFS and disease-specific survival in each low and high expression group for CD9, LC3A/B, ANXA1, and P62 in the Cox regression analysis. Conclusions As EV expression was related to the prognosis of lung SCC patients, a broader approach using different extracellular vesicles rather than a conventional exosome-dependent one is needed.