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Human Factors Engineering Study

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https://www.readbyqxmd.com/read/28448484/tissue-engineered-3d-human-lymphatic-microvascular-network-for-in-vitro-studies-of-lymphangiogenesis
#1
Laure Gibot, Todd Galbraith, Jennifer Bourland, Anita Rogic, Mihaela Skobe, François A Auger
This protocol describes a unique in vitro method for the generation of a 3D human lymphatic network within native connective tissue devoid of any exogenous material such as scaffolds or growth factors. In this five-stage protocol, human lymphatic endothelial cells (LECs) cocultured with dermal fibroblasts spontaneously organize into a stable 3D lymphatic capillary network. Stage 1 involves the isolation of primary fibroblasts and LECs from human skin. Fibroblasts are then cultured to produce connective tissue rich in extracellular matrix (stage 2), onto which LECs are seeded to form a network (stage 3)...
May 2017: Nature Protocols
https://www.readbyqxmd.com/read/28447733/gene-expression-profile-in-human-induced-pluripotent-stem-cells-chondrogenic-differentiation-in%C3%A2-vitro-part-b
#2
Ewelina Augustyniak, Wiktoria Maria Suchorska, Tomasz Trzeciak, Magdalena Richter
The development of human induced pluripotent stem cells (hiPSCs) is considered a turning point in tissue engineering. However, more data are required to improve understanding of key aspects of the cell differentiation process, including how specific chondrogenic processes affect the gene expression profile of chondrocyte‑like cells and the relative value of cell differentiation markers. The main aims of the present study were as follows: To determine the gene expression profile of chondrogenic‑like cells derived from hiPSCs cultured in mediums conditioned with HC‑402‑05a cells or supplemented with transforming growth factor β3 (TGF‑β3), and to assess the relative utility of the most commonly‑used chondrogenic markers as indicators of cell differentiation...
March 16, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28447543/human-egf-derived-direct-and-reverse-short-linear-motifs-conformational-dynamics-insight-into-the-receptor-binding-residues
#3
Nurbubu T Moldogazieva, Konstantin V Shaitan, Mikhail Yu Antonov, Innokenty M Mokhosoev, Olga V Levtsova, Аlexander A Terentiev
Short linear motifs (SLiMs) have been recognized to perform diverse functions in a variety of regulatory proteins through the involvement in protein-protein interactions, signal transduction, cell cycle regulation, protein secretion, etc. However, detailed molecular mechanisms underlying their functions including roles of definite amino acid residues remain obscure. In our previous studies, we demonstrated that conformational dynamics of amino acid residues in oligopeptides derived from regulatory proteins such as alpha-fetoprotein (AFP), carcino-embryonic antigen (CEA) and pregnancy specific β1-glycoproteins (PSGs) contributes greatly to their biological activities...
April 27, 2017: Journal of Biomolecular Structure & Dynamics
https://www.readbyqxmd.com/read/28443470/a-multi-target-protein-of-htertr-fam96a-presents-significant-anticancer-potent-in-the-treatment-of-hepatocellular-carcinoma
#4
Meng-Yu Zhang, Jie-Ping Wang
The abilities to escape apoptosis induced by anticancer drugs are an essential factor of carcinogenesis and a hallmark of resistance to cancer therapy. In this study, we identified hTERTR-FAM96A (human telomerase reverse transcriptase-family with sequence similarity 96 member A) as a new efficient agent for apoptosome-activating and anti-tumor protein and investigated the potential tumor suppressor function in hepatocellular carcinoma. The hTERTR-FAM96A fusion protein was constructed by genetic engineering and its anticancer function of hTERTR-FAM96A was explored in vitro and in vivo by investigating the possible preclinical outcomes...
April 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28421387/pharmacokinetics-of-monoclonal-antibodies-and-fc-fusion-proteins
#5
REVIEW
Liming Liu
There are many factors that can influence the pharmacokinetics (PK) of a mAb or Fc-fusion molecule with the primary determinant being FcRn-mediated recycling. Through Fab or Fc engineering, IgG-FcRn interaction can be used to generate a variety of therapeutic antibodies with significantly enhanced half-life or ability to remove unwanted antigen from circulation. Glycosylation of a mAb or Fc-fusion protein can have a significant impact on the PK of these molecules. mAb charge can be important and variants with pI values of 1-2 unit difference are likely to impact PK with lower pI values being favorable for a longer half-life...
April 19, 2017: Protein & Cell
https://www.readbyqxmd.com/read/28415472/supercritical-carbon-dioxide-extracted-extracellular-matrix-material-from-adipose-tissue
#6
Jun Kit Wang, Baiwen Luo, Vipra Guneta, Liang Li, Selin Ee Min Foo, Yun Dai, Timothy Thatt Yang Tan, Nguan Soon Tan, Cleo Choong, Marcus Thien Chong Wong
Adipose tissue is a rich source of extracellular matrix (ECM) material that can be isolated by delipidating and decellularizing the tissue. However, the current delipidation and decellularization methods either involve tedious and lengthy processes or require toxic chemicals, which may result in the elimination of vital proteins and growth factors found in the ECM. Hence, an alternative delipidation and decellularization method for adipose tissue was developed using supercritical carbon dioxide (SC-CO2) that eliminates the need of any harsh chemicals and also reduces the amount of processing time required...
June 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28409292/effects-of-the-donor-age-on-proliferation-senescence-and-osteogenic-capacity-of-human-urine-derived-stem-cells
#7
Peng Gao, Peilin Han, Dapeng Jiang, Shulong Yang, Qingbo Cui, Zhaozhu Li
To study the effects of the donor age on the application potential of human urine-derived stem cells (hUSCs) in bone tissue engineering, by comparing proliferation, senescence and osteogenic differentiation of hUSCs originated from volunteers with different ages. The urine samples were collected from 19 healthy volunteers (6 cases from children group aged from 5 to 14, 5 cases from middle-aged group aged from 30 to 40, and 8 cases from the elder group aged from 65 to 75), and hUSCs were isolated and cultured...
April 13, 2017: Cytotechnology
https://www.readbyqxmd.com/read/28403530/sociotechnical-resilience-a-preliminary-concept
#8
Sulfikar Amir, Vivek Kant
This article presents the concept of sociotechnical resilience by employing an interdisciplinary perspective derived from the fields of science and technology studies, human factors, safety science, organizational studies, and systems engineering. Highlighting the hybrid nature of sociotechnical systems, we identify three main constituents that characterize sociotechnical resilience: informational relations, sociomaterial structures, and anticipatory practices. Further, we frame sociotechnical resilience as undergirded by the notion of transformability with an emphasis on intentional activities, focusing on the ability of sociotechnical systems to shift from one form to another in the aftermath of shock and disturbance...
April 12, 2017: Risk Analysis: An Official Publication of the Society for Risk Analysis
https://www.readbyqxmd.com/read/28401100/generation-of-hematopoietic-stem-cells-from-human-embryonic-stem-cells-using-a-defined-stepwise-serum-free-and-serum-replacement-free-monolayer-culture-method
#9
So-Jung Kim, Ji-Won Jung, Hye-Yeong Ha, Soo Kyung Koo, Eung-Gook Kim, Jung-Hyun Kim
BACKGROUND: Embryonic stem cells (ESCs) can be expanded infinitely in vitro and have the potential to differentiate into hematopoietic stem cells (HSCs); thus, they are considered a useful source of cells for HSC production. Although several technical in vitro methods for engineering HSCs from pluripotent stem cells have been developed, clinical application of HSCs engineered from pluripotent stem cells is restricted because of the possibility of xenogeneic contamination resulting from the use of murine materials...
March 2017: Blood Research
https://www.readbyqxmd.com/read/28395322/de-and-recellularization-of-the-pig-uterus-a-bioengineering-pilot-study%C3%A2
#10
Hannes Campo, Pedro M Baptista, Nuria López-Pérez, Amparo Faus, Irene Cervelló, Carlos Simón
Absolute uterine factor infertility, or the absence of a functional uterus, has a prevalence of 3%-5% in the general population. Despite the great strides being made in reproductive medicine, patients diagnosed with absolute uterine factor infertility remain untreatable. The only available solution has been gestational surrogacy, but recently the Brannström group presented a viable alternative by reporting the first successful live birth after uterus transplantation. Similar to other transplantations, this approach has inherent limitations such as the paucity of donor organs and the need for long-term immunosuppression...
January 1, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28394779/evaluating-new-skill-sets-for-performance-improvement-human-factors-as-a-case-study
#11
T Eugene Day, Sarah Henrickson Parker, Virginia Lederman, Debbie McKetta, Anna Spraycar
New skill sets and improvement disciplines are constantly arising across the vast industrial and academic landscape of modern economies. Prescient hospital administrators are routinely searching for new and innovative ways to improve care, care delivery, safety, quality, and access. But, it can be challenging to identify those emerging skill sets, which will likely have lasting effect and will provide strong return on investment, from passing fads with little capacity to move performance benchmarks for a hospital...
April 2017: Health Care Manager
https://www.readbyqxmd.com/read/28390865/spdef-induces-quiescence-of-colorectal-cancer-cells-by-changing-the-transcriptional-targets-of-%C3%AE-catenin
#12
Yuan-Hung Lo, Taeko K Noah, Min-Shan Chen, Winnie Zou, Ester Borras, Eduardo Vilar, Noah F Shroyer
BACKGROUND & AIMS: The canonical Wnt signaling pathway activates the transcriptional activity of β-catenin. This pathway is often activated in colorectal cancer cells, but strategies to block it in tumors have not been effective. The SAM pointed domain containing ETS transcription factor (SPDEF) suppresses formation of colon tumors by unclear mechanisms. We investigated these mechanisms and the effects of SPDEF on β-catenin activity in mouse models of colorectal cancer (CRC), CRC cell lines, and mouse and human normal and cancer colonoids...
April 5, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28390192/runt-related-transcription-factor-2-runx2-is-responsible-for-galectin-3-overexpression-in-human-thyroid-carcinoma
#13
Engin Kaptan, Serap Sancar Bas, Aylin Sancakli, Hatice Gumushan Aktas, Bertan Boran Bayrak, Refiye Yanardag, Sehnaz Bolkent
Runx2 promotes metastatic ability of cancer cells by directly activating some of the mediators regarding malignancy. Galectin-3 (Gal-3) extensively expressed in normal and transformed cells and it is responsible for many cellular processes. In this study, we aimed to investigate whether there is any relationship between runx2 transcription factor and regulation of galectin-3 expression in different human thyroid carcinoma cell lines. To show effects of runx2 transcription factor on gal-3 expression, we developed runx2 knockdown model in the thyroid carcinoma cell lines; anaplastic 8505C and 8305C and, papillary TPC-1 and follicular FTC-133 by using siRNA transfection...
April 8, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28387635/identification-of-human-igg1-variant-with-enhanced-fcrn-binding-and-without-increased-binding-to-rheumatoid-factor-autoantibody
#14
Atsuhiko Maeda, Yuki Iwayanagi, Kenta Haraya, Tatsuhiko Tachibana, Genki Nakamura, Takeru Nambu, Keiko Esaki, Kunihiro Hattori, Tomoyuki Igawa
Various studies have demonstrated that Fc engineering to enhance neonatal Fc receptor (FcRn) binding is effective for elongating half-life or increasing cellular uptake of IgG. A previous study has shown that a N434H mutation to enhance FcRn binding resulted in increased binding to rheumatoid factor (RF) autoantibody, which is not desirable for therapeutic use in autoimmune disease. In this study, we first showed that all the existing Fc variants with enhanced FcRn binding also show increased RF binding, and then identified specific mutations that could be introduced to those Fc variants to reduce the RF binding...
April 7, 2017: MAbs
https://www.readbyqxmd.com/read/28386153/does-an-expert-based-evaluation-allow-us-to-go-beyond-the-impact-factor-experiences-from-building-a-ranking-of-national-journals-in-poland
#15
Emanuel Kulczycki, Ewa A Rozkosz
This article discusses the Polish Journal Ranking, which is used in the research evaluation system in Poland. In 2015, the ranking, which represents all disciplines, allocated 17,437 journals into three lists: A, B, and C. The B list constitutes a ranking of Polish journals that are indexed neither in the Web of Science nor the European Reference Index for the Humanities. This ranking was built by evaluating journals in three dimensions: formal, bibliometric, and expert-based. We have analysed data on 2035 Polish journals from the B list...
2017: Scientometrics
https://www.readbyqxmd.com/read/28380420/imaging-and-targeted-therapy-of-pancreatic-ductal-adenocarcinoma-using-the-theranostic-sodium-iodide-symporter-nis-gene
#16
Kathrin A Schmohl, Aayush Gupta, Geoffrey K Grünwald, Marija Trajkovic-Arsic, Kathrin Klutz, Rickmer Braren, Markus Schwaiger, Peter J Nelson, Manfred Ogris, Ernst Wagner, Jens T Siveke, Christine Spitzweg
The theranostic sodium iodide symporter (NIS) gene allows detailed molecular imaging of transgene expression and application of therapeutic radionuclides. As a crucial step towards clinical application, we investigated tumor specificity and transfection efficiency of epidermal growth factor receptor (EGFR)-targeted polyplexes as systemic NIS gene delivery vehicles in an advanced genetically engineered mouse model of pancreatic ductal adenocarcinoma (PDAC) that closely reflects human disease. PDAC was induced in mice by pancreas-specific activation of constitutively active KrasG12D and deletion of Trp53...
March 23, 2017: Oncotarget
https://www.readbyqxmd.com/read/28380080/biodegradable-poly-lactic-acid-co-glycolic-acid-scaffolds-as-carriers-for-genetically-modified-fibroblasts
#17
Tatjana Perisic, Ziyang Zhang, Peter Foehr, Ursula Hopfner, Kathrin Klutz, Rainer H Burgkart, Alexei Slobodianski, Moritz Goeldner, Hans-Günther Machens, Arndt F Schilling
Recent advances in gene delivery into cells allow improved therapeutic effects in gene therapy trials. To increase the bioavailability of applied cells, it is of great interest that transfected cells remain at the application site and systemic spread is minimized. In this study, we tested clinically used biodegradable poly(lactic acid-co-glycolic acid) (PLGA) scaffolds (Vicryl & Ethisorb) as transient carriers for genetically modified cells. To this aim, we used human fibroblasts and examined attachment and proliferation of untransfected cells on the scaffolds in vitro, as well as the mechanical properties of the scaffolds at four time points (1, 3, 6 and 9 days) of cultivation...
2017: PloS One
https://www.readbyqxmd.com/read/28378307/user-preferences-and-water-use-savings-owing-to-washbasin-taps-retrofit-a-case-study-of-the-decivil-building-of-the-university-of-aveiro
#18
Inês Meireles, Vítor Sousa, Kemi Adeyeye, Armando Silva-Afonso
During the last decades, achieving water efficiency in buildings has increasingly become an important challenge in the scope of sustainability. Water consumption is directly related to individual conduct. Despite the various technological improvements in fixtures and appliances, their performance will be influenced by human preferences and behavior. As a result, the potential for effective water consumption saving is influenced by behavior change as well as water-efficient fixtures and appliances. This work evaluates the impact of user preferences and behavior change on the water-efficient performance of tap aerators in a case study building: the Department of Civil Engineering building of the University of Aveiro, Portugal...
April 4, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28369693/a-bicistronic-vector-with-destabilized-mrna-secondary-structure-yields-scalable-higher-titer-expression-of-human-neurturin-in-e-coli
#19
Varnika Roy, Robert Roth, Mark Berge, Rajesh Chitta, Sucheta Vajrala, Srilatha Kuntumalla, Albert Schmelzer, Ron Schoner
Human neurturin (NTN) is a cystine knot growth factor with potential therapeutic use in diseases such as Parkinson's and diabetes. Scalable high titer production of native NTN is particularly challenging because of the cystine knot structure which consists of an embedded ring comprised of at least three disulfide bonds. We sought to pursue enhanced scalable production of NTN in Escherichia coli. Our initial efforts focused on codon optimization of the first two codons following AUG but these studies resulted in only a marginal increase in NTN expression...
March 28, 2017: Biotechnology and Bioengineering
https://www.readbyqxmd.com/read/28369379/localized-twist1-and-twist2-basic-domain-substitutions-cause-four-distinct-human-diseases-that-can-be-modeled-in-c-elegans
#20
Sharon Kim, Stephen R F Twigg, Victoria A Scanlon, Aditi Chandra, Tyler J Hansen, Arwa Alsubait, Aimee L Fenwick, Simon J McGowan, Helen Lord, Tracy Lester, Elizabeth Sweeney, Astrid Weber, Helen Cox, Andrew O M Wilkie, Andy Golden, Ann K Corsi
Twist transcription factors, members of the basic helix-loop-helix family, play crucial roles in mesoderm development in all animals. Humans have two paralogous genes, TWIST1 and TWIST2, and mutations in each gene have been identified in specific craniofacial disorders. Here we describe a new clinical entity, Sweeney-Cox syndrome, associated with distinct de novo amino acid substitutions (p.Glu117Val and p.Glu117Gly) at a highly conserved glutamic acid residue located in the basic DNA binding domain of TWIST1, in two subjects with frontonasal dysplasia and additional malformations...
March 27, 2017: Human Molecular Genetics
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