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Over repeated cycles of fed-batch culture, encapsulated, S. cerevisiae-P. stipitis fusants exhibited a dramatic increase in genomic stability, relative to planktonic fusants. Encapsulation also increased the stability of antibiotic-resistance plasmids used to mark each species, and preserved a fixed ratio of S. https://www.selleckchem.com/products/mk-4827.html cerevisiae to P. stipitis cells in mixed cultures. Our data demonstrate how encapsulating cells in an extracellular matrix restricts cell division, and thereby preserves the stability and biological activity of entities ranging from genomes to plasmids to mixed populations, each of which can be essential to cost-efficient biomanufacturing. This article is protected by copyright. All rights reserved. This article is protected by copyright. All rights reserved.Cell-based therapeutics, such as in vitro manufactured red blood cells (mRBCs), are different to traditional biopharmaceutical products (the final product being the cells themselves as opposed to biological molecules such as proteins) and that presents a challenge of developing new robust and economically feasible manufacturing processes, especially for sample purification. Current purification technologies have limited throughput, rely on expensive fluorescent or magnetic immunolabeling with a significant (up to 70%) cell loss and quality impairment. To address this challenge, previously characterized mechanical properties of umbilical cord blood CD34+ cells undergoing in vitro erythropoiesis were used to develop an mRBC purification strategy. The approach consists of two main stages (a) a microfluidic separation using inertial focusing for deformability-based sorting of enucleated cells (mRBC) from nuclei and nucleated cells resulting in 70% purity and (b) membrane filtration to enhance the purity to 99%. Herein, we propose a new route for high-throughput (processing millions of cells/min and mls of medium/min) purification process for mRBC, leading to high mRBC purity while maintaining cell integrity and no alterations in their global gene expression profile. Further adaption of this separation approach offers a potential route for processing of a wide range of cellular products. © 2020 Wiley Periodicals, Inc.Mesenchymal stromal cells (MSCs) have failed to consistently demonstrate their therapeutic efficacy in clinical trials, due in part to variability in culture conditions used for their production. Of various culture conditions used for MSC production, aggregate culture has been shown to improve secretory capacity (a putative mechanism of action in vivo) compared with standard monolayer culture. The purpose of this study was to perform multiomics characterization of MSCs cultured in monolayer and as aggregates to identify aspects of cell physiology that differ between these culture conditions to begin to understand cellular-level changes that might be related secretory capacity. Targeted secretome characterization was performed on multiple batches of MSC-conditioned media, while nontargeted proteome and metabolome characterization was performed and integrated to identify cellular processes differentially regulated between culture conditions. Secretome characterization revealed a reduction in MSC batch variability when cultured as aggregates. Proteome and metabolome characterization showed upregulation of multiple protein and lipid metabolic pathways, downregulation of several cytoskeletal processes, and differential regulation of extracellular matrix synthesis. Integration of proteome and metabolome characterization revealed individual lipid metabolites and vesicle-trafficking proteins as key features for discriminating between culture conditions. Overall, this study identifies several aspects of MSC physiology that are altered by aggregate culture. Further exploration of these processes and pathways is needed to determine their potential role in regulating cell secretory capacity. © 2020 Wiley Periodicals, Inc.INTRODUCTION MicroRNAs (miRNAs) take part in tumorigenesis and show aberrant expression levels in cancerous tissues. We aimed to perform miRNA profiling of endometrioid endometrial cancer (EEC) metastatic loci derived from lymph nodes. Identification of aberrant miRNAs in positive lymph nodes could contribute to establishing new diagnostic markers and therapeutic targets. MATERIAL AND METHODS During the screening phase of the study, we performed profiling of 754 human miRNAs in endometrioid endometrial cancer (EEC)tissues, microdissected metastatic loci from lymph nodes and healthy lymph nodes (Taqman Array). Selection of candidate miRNAs and subsequent validation using quantitative reverse transcription polymerase chain reaction (qRT-PCR) in 50 tissue samples were performed. RESULTS After the screening phase of the study, five miRNAs were selected (hsa-miR-18b, hsa-miR-148a-5p, hsa-miR-204, hsa-miR-424, hsa-miR-129-1-3p). Validation revealed that miRNA-204 and miRNA-424 were highly downregulated in metastatic tissues compared with endometrial cancer samples (hsa-miR-204-P = .0008; hsa-miR-424-P = .0001). Receiver operating characteristic curves, which were constructed to compare EEC and positive EEC lymph nodes yielded the following area under the curves (AUCs) hsa-miR-204-.802 (96% confidence interval CI 0.676-0.927), hsa-miR-424-.84 (95% CI 0.711-0.969). CONCLUSIONS Compared with primary endometrioid endometrial cancer tissue, metastatic loci derived from positive lymph nodes are characterised by profound downregulation of miRNA-204 and miRNA-424. © 2020 Nordic Federation of Societies of Obstetrics and Gynecology.OBJECTIVES Previous studies have reported that cases with clinical T1 renal cell cancer upstaging to pathological T3 are a risk factor to predicting postoperative recurrence after partial nephrectomy. The aim of our study was to investigate the impact of the radiological morphology of the enhanced CT scan of clinical T1 renal cell cancer on predicting upstaging to pathological T3. METHODS Three hundred sixty-seven cases with clinical T1 renal cell cancer diagnosed from enhanced CT scans were enrolled in this study. Based on the findings from the enhanced CT scan, the cases were classified into 'round', the margins of which were smooth and round; 'lobular', one or more findings of smooth dent and no spiky dent were identified on the margin of the tumor; and 'irregular', one or more spiky dent were identified on the margin of the tumor. The association of postoperative upstaging with these radiological morphology and other clinical characteristics of each case was analyzed. RESULTS Eighteen cases (4.9%) pathologically upstaged to T3a.
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