Screening and identification of key chromatin regulator biomarkers for ankylosing spondylitis and drug prediction: evidence from bioinformatics analysis.

BACKGROUND: Ankylosing spondylitis (AS) is one of the most common immune-mediated arthritic diseases worldwide. Despite considerable efforts to elucidate its pathogenesis, the molecular mechanisms underlying AS are still not fully understood. METHODS: To identify candidate genes involved in AS progression, the researchers downloaded the microarray dataset GSE25101 from the Gene Expression Omnibus (GEO) database. They identified differentially expressed genes (DEGs) and functionally enriched them for analysis. They also constructed a protein-protein interaction network (PPI) using STRING and performed cytoHubba modular analysis, immune cell and immune function analysis, functional analysis and drug prediction.The results showed that DEGs were mainly associated with histone modifications, chromatin organisation, transcriptional coregulator activity, transcriptional co-activator activity, histone acetyltransferase complexes and protein acetyltransferase complexes. RESULTS: The researchers analysed the differences in expression between the CONTROL and TREAT groups in terms of immunity to determine their effect on TNF-α secretion. By obtaining hub genes, they predicted two therapeutic agents, AY 11-7082 and myricetin. CONCLUSION: The DEGs, hub genes and predicted drugs identified in this study contribute to our understanding of the molecular mechanisms underlying the onset and progression of AS. They also provide candidate targets for the diagnosis and treatment of AS.

Effects of traditional Chinese exercise on the treatment of COVID-19: A protocol for systematic review.

INTRODUCTION: Since the end of December 2019, corona virus disease 2019 (COVID-19) has caused a huge impact in many countries and has attracted great attention from countries around the world. In fact, many studies have shown that during the fight against the COVID-19 epidemic. Chinese traditional exercise plays an active role in promoting human health. The main purpose of this study is to provide a reliable method and credible evidence to improve the prognosis of patients with COVID-19 through traditional Chinese exercise. METHODS: This protocol is guided by the preferred reporting items for systematic reviews. By searching the following electronic databases: PubMed, EMBASE, MEDLINE, Cochrane Library, Web of Science, China National Knowledge Infrastructure Database, China Biomedical Literature Database, China Science, and Wan-Fang Database. The whole process includes selecting high-quality literature, extracting and analyzing, and assessing the risk of bias in order to summarize the therapeutic effect of traditional Chinese exercise on COVID-19 patients. RESULT: Research shows that prevention and treatment through traditional Chinese exercise can provide strong evidence against COVID-19. CONCLUSION: To provide a way to help prevent and treat COVID-19 through traditional Chinese exercise.

Subcellular distribution of endogenous malectin under rest and stress conditions is regulated by ribophorin I.

Malectin is a newly discovered endoplasmic reticulum (ER)-resident lectin, which specifically recognizes Glc2Man9GlcNAc2 on newly synthesized glycoproteins. We have previously demonstrated that malectin forms a complex with ribophorin I for selective retention of misfolded glycoproteins inside the cell. Here, we showed that ribophorin I also functions to regulate the subcellular localization of malectin under various conditions. Even though malectin does not contain an ER-retention signal motif, we found that endogenous malectin mainly localizes in the ER, which is disrupted upon suppression of ribophorin I, leading to its movement from ER to Golgi. In contrast, under ER-stress conditions, malectin mainly localizes in the Golgi, which is restored to ER localization by overexpression of ribophorin I. These results indicate that the subcellular localization of malectin is accurately regulated by the expression level of ribophorin I, which will provide further insights into the understanding of the function of malectin.