Long noncoding RNA CASC2 alleviates the growth, migration and invasion of oral squamous cell carcinoma via downregulating CDK1.

Since this article has been suspected of research misconduct and the corresponding authors did not respond to our request to prove originality of data and figures, "Long noncoding RNA CASC2 alleviates the growth, migration and invasion of oral squamous cell carcinoma via downregulating CDK1, by H.-B. Xing, H.-M. Qiu, Y. Li, P.-F. Dong, X.-M. Zhu, published in Eur Rev Med Pharmacol Sci 2019; 23 (11): 4777-4783-DOI: 10.26355/eurrev_201906 _18060-PMID: 31210307" has been withdrawn. The Publisher apologizes for any inconvenience this may cause. https://www.europeanreview.org/article/18060.

Long noncoding RNA CASC2 alleviates the growth, migration and invasion of oral squamous cell carcinoma via downregulating CDK1.

OBJECTIVE: Recent studies have revealed the important role of long noncoding RNAs (lncRNAs) in regulating the progression of tumorigenesis. Oral squamous cell carcinoma (OSCC) is a prevalent tumor in the world. This study aims to identify the specific mechanism of lncRNA CASC2 in alleviating the progression of OSCC. PATIENTS AND METHODS: CASC2 expression in OSCC cell lines and 40 paired OSCC samples were detected by quantitative Real-time polymerase chain reaction (qRT-PCR). Moreover, in vitro functions of CASC2 in regulating the cellular behaviors of OSCC cells were identified by performing transwell assay, wound healing assay and proliferation assay. The underlying mechanism of CASC2 in mediating the progression of OSCC was explored by qRT-PCR and Western blot. RESULTS: CASC2 expression was remarkably downregulated in OSCC tissues compared with that in adjacent normal samples. Moreover, proliferation, invasion and migration were inhibited in OSCC cells overexpressing CASC2. CASC2 overexpression in OSCC cells downregulated CDK1 at both mRNA and protein levels in vitro. Besides, the expression of CDK1 in OSCC tissues was negatively correlated to the expression of CASC2. CONCLUSIONS: CASC2 suppresses the migration, invasion and proliferation of OSCC cells through downregulating CDK1, which may offer a new therapeutic intervention for OSCC patients.

Inconsistency between manganese superoxide dismutase expression and its activity involved in the degeneration of recognition function induced by chronic aluminum overloading in mice.

Manganese (Mn) superoxide dismutase (SOD) is mainly located in mitochondrial matrix and is responsible for scavenging about 80% free radicals from oxidative and phospharylative process in mitochondria. It was reported that the insufficiency of Mn SOD expression or activity was connected to the development of neurodegenerative diseases. In this article, we investigated the time course related to the changes of Mn SOD expression and its activity from mouse brain as well as the recognition dysfunction in chronic aluminum (Al) overloading mice. Aluminum gluconate solution (equal to Al 400 mg/kg) was given to mice once a day, 6 days per week for 12 weeks via intragastric gavage. The learning and memory function, malondialdehyde (MDA) level as well as expression and activity of Mn SOD in cortex were determined. It was found that function of passive learning and memory and spatial recognition decreased, MDA level and Mn SOD expression increased during the period of chronic Al loading, but the Mn SOD activity rose from the 4th week and then decreased from the 8th week in cortex in Al overloading mice compared with the control. The results indicated that the inconsistency between Mn SOD expression and its activity might contribute to the development of recognition dysfunction induced by chronic Al overload.

Multicenter, double-blind, randomized clinical trial of parenterally administered Cefoselis versus Cefepime for the treatment of acute bacterial infections.

AIM: This study aims to evaluate the clinical efficacy and safety of intravenous Cefoselis injection for the treatment of acute moderate and severe bacterial infections. PATIENTS AND METHODS: A multicenter, double-blind, randomized clinical trial was carried out using Cefepime as control. Patients received 1.0 g of either Cefoselis or Cefepime for moderate infections or 2.0 g for severe infections at an interval of 12 hours for 7 to 14 days. A total of 276 patients (138 with Cefoselis, 138 with Cefepime) with respiratory or urinary tract infections were enrolled in the study. Up to 137 and 124 patients receiving Cefoselis and 132 and 125 patients receiving Cefepime were eligible for the ITT (intent to treat) and PP (per protocol) analyses, respectively. RESULTS: At the end of the treatment, the cure rates and effective rates were 59.68% (74/124) and 93.55% (116/124) with Cefoselis, and 56.00% (74/124) and 90.40% (116/124) with Cefepime. The bacterial eradication rates of the two groups were 90.32% and 93.85%, respectively. No statistical differences were observed on the above-mentioned parameters between the two groups (all p > 0.05). Adverse events, mainly mild aminotransferase elevation and mild leukopenia, were observed in 11.59% (16/138) and 13.77% (19/138) of patients with Cefoselis and Cefepime, respectively (p > 0.05). CONCLUSIONS: Cefoselis is an effective and safe choice against acute moderate and severe respiratory infections and UTI (urinary tract infection).

Relationship of polymorphisms in the cholesteryl ester transport protein gene R451Q with coronary heart disease and diabetes in Uyghur and Han Chinese.

To investigate the relationship of polymorphisms in the cholesteryl ester transport protein (CETP) gene with coronary heart disease (CHD) and diabetes in subjects of Uyghur and Han Chinese origin, 266 subjects with CHD including 154 subjects with type 2 diabetes mellitus and 136 healthy subjects (as a control group) were enrolled in this study. Polymerase chain reaction and an enzymatic assay based on the ligase detection reaction were used to detect R451Q polymorphisms in the CETP gene. The data were used for genotyping to determine the allele frequency distribution of the CETP gene R451Q polymorphism to investigate its effects on lipid and apolipoprotein levels. Genotype and allele frequencies of CETP R451QA did not show any significant differences among the CHD and healthy control groups. Moreover, no significant difference in the CETP R451QA genotype and allele frequency was detected among the subjects of Uyghur and Han origin. Blood levels of lipids and apolipoproteins likewise lacked an association with CETP R451QA genotype frequencies in the CHD/diabetes group. We conclude that the R451Q polymorphisms in the CETP gene had no effects on blood lipid levels and are not a risk factor for CHD in Han and Uyghur Chinese.

[Effect of macrophage-derived growth factor on the cell cycle kinetics of cultured arterial smooth muscle cells].

Effects of macrophage-derived growth factor on the progression of the cell cycle of cultured aortic smooth muscle cells were investigated by using rabbit peritoneal macrophage conditioned-medium (M phi-CM) as the source of the growth factors. DNA content of individual SMC in the cell population which had been exposed either to platelet-poor plasma serum (PPPS) or to M phi-CM was also measured by flow cytometry and microspectrophotometry, as well as by phase contrast microscopy. The results showed that the cells quiescent in PPPS medium had a high population not only in G0/G1 but also in G2 phase. This indicated that the cell cycle process was blocked both in G0/G1 and G2 phase. The cell cycle distribution of SMCs exposed to M phi-CM for 48 hours was very similar to that cultured in 10% fetal calf serum medium. It is suggested that M phi-CM can promote the cell growth-arrested in ppps medium passing through G0/G1 into S phase as well as through G2 into M phase.