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The transcription factor AP-2 β (TFAP2B) serves an important role in kidney development. MicroRNAs (miRNAs) regulate carcinogenic pathways and have gained increasing attention owing to their association with human clear cell renal cell carcinoma (ccRCC) tumorigenesis. However, whether miRNAs could affect renal cell tumorigenesis by regulating TFAP2B expression has not been identified. The aim of this study was to investigate the effects of miRNA on TFAP2B and its potential role in cell growth, invasion and migration. PCR, western blot and dual luciferase reporter assays were performed to analyze the effects of miR-142-5p on TFAP2B. Furthermore, MTT, flow cytometry, wound healing and Transwell migration assays were used to analyze the effect of miR-142-5p on cell proliferation and migration. The results demonstrated that miR-142-5p targeted TFAP2B and downregulated the expression of TFAP2B at the mRNA and protein levels, promoting cell proliferation and migration in two ccRCC cell lines, 786-O and A-498. This phenomenon supported the theory that miR-142-5p may function as an oncogene in ccRCC. The potential clinical significance of miR-142-5p as a biomarker and a therapeutic target provides rationale for further investigation into miR-142-5p-mediated molecular pathways and how these may be associated with ccRCC development.Numerous studies have reported that the long non-coding RNA (lncRNA) small nucleolar RNA host gene 6 (SNHG6; ENSG00000245910) participates in the development of malignant tumors. However, the underlying mechanism of SNHG6 in the development of melanoma remains unknown. Thus, the present study aimed to investigate the biological role of SNHG6 in the progression of melanoma. SNHG6 expression in melanoma tissues and cells was assessed using a bioinformatics approach and reverse transcription-quantitative PCR analysis. Cell viability was determined using the Cell Counting Kit-8 and colony formation assays. The correlation between microRNA (miR)-101-3p, SNHG6 and RAP2B expression levels was assessed using Pearson's correlation analysis. Bioinformatic analysis and luciferase reporter assay were utilized to confirm the interaction between miR-101-3p and SNHG6 or RAP2B. The Transwell assay was conducted to examine the migratory and invasive activities of melanoma cells. In the present study, SNHG6 expression was upregulated in melanoma tissues and cell lines, and SNHG6 silencing suppressed melanoma cell viability, migration and invasion. SNHG6 was directly bound to miR-101-3p, which interacted with RAP2B. In addition, miR-101-3p expression was negatively correlated with SNHG6 or RAP2B expression. check details miR-101-3p silencing partially abrogated the suppressive effect of SNHG6-knockdown on RAP2B expression. Moreover, the data demonstrated that RAP2B overexpression reversed the inhibitory effects on melanoma cell proliferation, migration and invasion induced by SNHG6 silencing. In conclusion, the present study identified that SNHG6 accelerated melanoma progression via regulating the miR-101-3p/RAP2B axis. Thus, the SNHG6/miR-101-3p/RAP2B signaling pathway may be a novel therapeutic target for melanoma.Surfactant protein D (SP-D) is a member of the collectin family of proteins, which is secreted by airway epithelial cells. SP-D serves an important role in the immune system and in the inflammatory regulation of the lung. SP-D was recently found to suppress lung cancer progression by downregulating epidermal growth factor signaling. However, the relationship between SP-D and pulmonary metastases from colon cancer remains unknown. The present study aimed to determine whether SP-D may suppress the development of the mouse rectal carcinoma cell line, CMT93, in vitro. The present study investigated the effect of SP-D on pulmonary metastases from colon cancer in vivo using SP-D knockout mice. A wound healing assay and cell invasion assay revealed that SP-D suppressed the proliferation, migration and invasion of CMT-93 cells. After injection of CMT-93 cells into the tail vein, SP-D knockout mice were significantly more susceptible to developing pulmonary metastases than C57/BL6 mice (control). Moreover, a novel cell line (CMT-93 pulmonary metastasis; CMT-93 PM) was established from the lesions of pulmonary metastases in C57/BL6 mice following injection of CMT93 into the tail vein. CMT-93 PM exhibited more robust invasion and proliferation compared to CMT93, which was unaffected by exposure to SP-D. A higher incidence of pulmonary metastases was detected following injection of CMT93 PM into the tail vein of C57/BL6 mice compared with CMT-93. Consequently, SP-D may be involved in the pathogenesis of pulmonary metastases from colon cancer.This report describes a series of cases with massive subretinal hemorrhage (SRH) due to age-related macular degeneration (AMD) treated by subretinal alteplase injections. In all cases, the surgical technique consisted in 25-gauge pars plana vitrectomy (PPV) and alteplase injection under the retina using a 38-gauge cannula. After the fluid-gas exchange, bevacizumab injection was performed in all patients. Three cases of SRH in which this technique was used, as well as their evolution at one week and one month postoperatively are described. Visual acuity was hand motion in all three cases at presentation. After surgery, a significant anatomical and functional improvement was noted in all cases. One month postoperatively, none of the patients had blood under the macula, and visual acuities significantly improved to 0.8, 0.2 and 0.16 (decimal fraction). A consistent reduction of central retinal thickness was observed on optical coherence tomography (OCT) from the first week postoperatively. No intra and postoperative complications were noted. Subretinal alteplase injection proved as a viable solution in these severe SRH with early presentation. There was no need to change the systemic anticoagulant and antiaggregant therapy. Bevacizumab intravitreal injection at the end of surgery has an important role in preventing further bleeding.Haemophilia is an inherited disease that requires a different approach in order to evaluate, monitor and treat patients. Despite the great advances in therapeutic agents that have emerged, reports on the impact of monitoring outcomes on treatment decisions are rarely presented. Haemophilia A and haemophilia B are inherited bleeding disorders caused by deficiencies in blood clotting factor proteins. A systematic review was performed to identify literature reports on the current practices in haemophilic patients undergoing orthopedic surgery. The best therapy for haemophilic patients consists in performing primary prophylaxis to prevent joint bleeding and other complications. Besides the primary prophylaxis, thromboprophylaxis is used to prevent venous thrombosis in patients with hemophilia who undergo surgical orthopedic procedures. Further research is needed to better manage the pharmacologic approaches in haemophilic patients undergoing orthopedic surgery. Although patients with haemophilia present low risk for thromboembolic complications, such events have been reported in surgical procedures.
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