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unfortunately, is in most cases performed by the transcranial route. If a simple surveillance is chosen, it has to be very prolonged (annual surveillance). Indeed, progression of histiocytosis or germinoma may be delayed. © 2020 S. Karger AG, Basel.Kinesin family (KIF) members have vital roles in mitosis, meiosis, and transport of macromolecules in eukaryotic cells. In this study, we aimed to investigate the role of KIF15 in osteosarcoma. Immunohistochemical staining was performed to determine expression levels of KIF15 in osteosarcoma tissues and adjacent normal tissues. Tissue microarray analysis showed a correlation between the expression of KIF15 and pathological features of patients. Subsequently, lentivirus was used to inhibit the expression of KIF15 in osteosarcoma cells. An MTT assay was performed to examine cell proliferation. Transwell and wound healing assays were used to estimate the invasion and migration of osteosarcoma cells, respectively. Flow cytometric analysis was employed to define the apoptosis of osteosarcoma cells. Our results showed that KIF15 expression was significantly upregulated in osteosarcoma tissues compared with adjacent normal tissues. The Mann-Whitney U test and Spearman correlation analysis showed that the expression levels of KIF15 in osteosarcoma tissues were positively correlated with tumor infiltrate, a pathological characteristic of patients. The expression of KIF15 was successfully suppressed by shKIF15, and the knockdown efficiency reached 80 and 69% in MNNG/HOS and U2OS cells, respectively. Subsequently, knockdown of KIF15 significantly inhibited the capacity of cell proliferation, colony formation, invasion, and migration, but enhanced G2 phase arrest and partially enhanced cell apoptosis. This study preliminarily showed KIF15 to be a critical regulatory molecule involved in osteosarcoma cell proliferation. Consequently, KIF15 can be a potential diagnostic and therapeutic target for osteosarcoma. © 2020 S. Karger AG, Basel.BACKGROUND/AIMS The hepatitis C virus nonstructural 3/4A protease has been shown to cleave protein tyrosine phosphatase nonreceptor type 2 (PTPN2, also known as T cell protein tyrosine phosphatase), thereby inducing a shift from a Th1 toward a nonantiviral Th2 immunity. https://www.selleckchem.com/products/ABT-869.html Ribavirin therapy reverses these effects and supports direct-acting antiviral (DAA) therapy as an immunomodulatory compound and ultimately improves the response to DAA therapy. Here we aimed to assess whether intrahepatic levels of PTPN2 might be used as a clinical prognostic marker for the response to DAA therapy. METHODS Liver biopsies from hepatitis C virus-infected patients with and without cirrhosis were immunohistochemically stained for PTPN2 and scored for staining intensity as well as percentage of hepatocytes positive for nuclear PTPN2 localization. PTPN2 scores were correlated to sustained virologic response after DAA therapy, viral load, serum levels of alanine aminotransferase, aspartate aminotransferase, gamma-glutamyl transferase (GGT), and the Model for End-Stage Liver Disease (MELD) score at the time of liver biopsy. RESULTS We did not detect a difference in intrahepatic PTPN2 levels between responders with cirrhosis, responders without cirrhosis, and nonresponders to DAA therapy. There was no correlation between intrahepatic PTPN2 levels and viral load or clinical markers such as liver transaminases, GGT, or the MELD score. CONCLUSION Intrahepatic PTPN2 levels assessed via IHC staining do not represent a clinical prognostic marker for the response to DAA therapy. © 2020 S. Karger AG, Basel.Focal segmental glomerulosclerosis (FSGS) is one of the most frequent and severe glomerular kidney disease with frequent progression to end-stage renal disease and a high rate of recurrence in renal transplantations. Due to intolerance or resistance to the current immunomodulatory treatments, the management of FSGS is a therapeutic challenge. Over the last few years, development in extracorporeal therapies has shown potential beneficial outcomes in drug-resistant and recurrent FSGS patients. Thus, this study reviews the current literature on the use of extracorporeal therapies, such as plasma exchange therapy, immunoadsorption, and low-density lipoprotein apheresis, for the treatment of FSGS in the pediatric population. © 2020 S. Karger AG, Basel.Tumor necrosis factor alpha (TNF-α) has been associated with the pathogenesis of several autoimmune diseases. Also, various studies in different ethnics showed an association between TNF-α gene polymorphisms and susceptibility to vitiligo. The paucity of genetic data led us to undertake this study to evaluate the association of five TNF-α SNPs (rs1799964, rs1800630, rs1799724, rs1800629, and rs361525) with the development of vitiligo in South Indian Tamils. A total of 264 vitiligo patients and 264 healthy controls were recruited and TNF-α genotyping was performed using amplification-refractory mutation system polymerase chain reaction and TaqMan allele discrimination assay. Circulatory TNF-α levels were measured by enzyme-linked immunosorbent assay. We observed that a single polymorphic allele A in the promoter region -308 (rs1800629) conferred significant risk to develop vitiligo (p = 0.0002, OR = 1.70, 95% CI = 1.28-2.25), whereas the other polymorphisms failed to contribute to disease risk (p > 0.05). From the constructed haplotypes, TCCAG was found to be a significant risk factor for vitiligo (p less then 0.05). Also, a strong linkage disequilibrium was observed between the following SNPs (1) rs1799964 and rs1800629 (2) rs1800630 and rs1799724 (D' = 0.90). Analysis of the influence of genotype on phenotypes revealed that the A allele of rs361525 was a risk factor for vitiligo in females (p = 0.04, OR = 0.45, 95% CI = 0.21-0.95), whilst the rs1800629 allele conferred protection against early disease onset (p less then 0.05). A statistically significant difference in plasma TNF-α levels was found between cases and controls (p less then 0.05). The TNF-α -308A allele and TCCAG haplotype were identified as genetic risk factors for vitiligo susceptibility in South Indian Tamils. © 2020 S. Karger AG, Basel.
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