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Kidney, growth and development, technology,

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https://www.readbyqxmd.com/read/28409345/growth-factor-regulation-in-the-nephrogenic-zone-of-the-developing-kidney
#1
Leif Oxburgh, Sree Deepthi Muthukrishnan, Aaron Brown
New nephrons are induced by the interaction between mesenchymal progenitor cells and collecting duct tips, both of which are located at the outer edge of the kidney. This leading edge of active nephron induction is known as the nephrogenic zone. Cell populations found within this zone include collecting duct tips, cap mesenchyme cells, pretubular aggregates, nephrogenic zone interstitium, hemoendothelial progenitor cells, and macrophages. The close association of these dynamic progenitor cell compartments enables the intricate and synchronized patterning of the epithelial and the vascular components of the nephron...
2017: Results and Problems in Cell Differentiation
https://www.readbyqxmd.com/read/28325303/inhibition-of-egf-uptake-by-nephrotoxic-antisense-drugs-in%C3%A2-vitro-and-implications-for-preclinical-safety-profiling
#2
Annie Moisan, Marcel Gubler, Jitao David Zhang, Yann Tessier, Kamille Dumong Erichsen, Sabine Sewing, Régine Gérard, Blandine Avignon, Sylwia Huber, Fethallah Benmansour, Xing Chen, Roberto Villaseñor, Annamaria Braendli-Baiocco, Matthias Festag, Andreas Maunz, Thomas Singer, Franz Schuler, Adrian B Roth
Antisense oligonucleotide (AON) therapeutics offer new avenues to pursue clinically relevant targets inaccessible with other technologies. Advances in improving AON affinity and stability by incorporation of high affinity nucleotides, such as locked nucleic acids (LNA), have sometimes been stifled by safety liabilities related to their accumulation in the kidney tubule. In an attempt to predict and understand the mechanisms of LNA-AON-induced renal tubular toxicity, we established human cell models that recapitulate in vivo behavior of pre-clinically and clinically unfavorable LNA-AON drug candidates...
March 17, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/27920947/the-daniel-k-inouye-college-of-pharmacy-scripts-poha-berry-physalis-peruviana-with-potential-anti-inflammatory-and-cancer-prevention-activities
#3
Leng Chee Chang, Mayuramas Sang-Ngern, John M Pezzuto, Carolyn Ma
The Daniel K. Inouye College of Pharmacy, during a historic event in Spring 2016, graduated the first two students in the Pacific region to earn a PhD in pharmaceutical sciences at the University of Hawai'i at Hilo. The college offers PhD programs in these five disciplines: Cancer Biology, Medicinal Chemistry, Pharmaceutics, Pharmacognosy, and Pharmacology. One of the Pharmacognosy dissertations focused on plant-derived natural products with potential anti-inflammatory and cancer chemopreventive activities...
November 2016: Hawai'i Journal of Medicine & Public Health: a Journal of Asia Pacific Medicine & Public Health
https://www.readbyqxmd.com/read/27853858/production-process-reproducibility-and-product-quality-consistency-of-transient-gene-expression-in-hek293-cells-with-anti-pd1-antibody-as-the-model-protein
#4
Kai Ding, Lei Han, Huifang Zong, Junsheng Chen, Baohong Zhang, Jianwei Zhu
Demonstration of reproducibility and consistency of process and product quality is one of the most crucial issues in using transient gene expression (TGE) technology for biopharmaceutical development. In this study, we challenged the production consistency of TGE by expressing nine batches of recombinant IgG antibody in human embryonic kidney 293 cells to evaluate reproducibility including viable cell density, viability, apoptotic status, and antibody yield in cell culture supernatant. Product quality including isoelectric point, binding affinity, secondary structure, and thermal stability was assessed as well...
March 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/27539157/protein-catalyzed-capture-agents-with-tailored-performance-for-in-vitro-and-in-vivo-applications
#5
Matthew B Coppock, Candice R Warner, Brandi Dorsey, Joshua A Orlicki, Deborah A Sarkes, Bert T Lai, Suresh M Pitram, Rosemary D Rohde, Jacquie Malette, Jeré A Wilson, Paul Kearney, Kenneth C Fang, Scott M Law, Sherri L Candelario, Blake Farrow, Amethist S Finch, Heather D Agnew, James R Heath, Dimitra N Stratis-Cullum
We report on peptide-based ligands matured through the protein catalyzed capture (PCC) agent method to tailor molecular binders for in vitro sensing/diagnostics and in vivo pharmacokinetics parameters. A vascular endothelial growth factor (VEGF) binding peptide and a peptide against the protective antigen (PA) protein of Bacillus anthracis discovered through phage and bacterial display panning technologies, respectively, were modified with click handles and subjected to iterative in situ click chemistry screens using synthetic peptide libraries...
March 2017: Biopolymers
https://www.readbyqxmd.com/read/27375081/pluripotent-stem-cell-derived-kidney-organoids-an-in-vivo-like-in-vitro-technology
#6
REVIEW
Frans Schutgens, Marianne C Verhaar, Maarten B Rookmaaker
Organoids are self-organizing, multicellular structures that contain multiple cell types, represent organ structure and function, and can be used to model organ development, maintenance and repair ex vivo. Organoids, derived from embryonic stem cells (ESCs), induced pluripotent stem cells (iPSCs) or adult stem cells, are cultured in extracellular matrix (ECM). Organoid cultures have been developed for multiple organs and for the kidney, pluripotent stem cell (PSCs) derived organoid technology has rapidly developed in the last three years...
November 5, 2016: European Journal of Pharmacology
https://www.readbyqxmd.com/read/27312837/the-impact-of-decellularization-agents-on-renal-tissue-extracellular-matrix
#7
Nafiseh Poornejad, Lara B Schaumann, Evan M Buckmiller, Nima Momtahan, Jason R Gassman, Ho Hin Ma, Beverly L Roeder, Paul R Reynolds, Alonzo D Cook
The combination of patient-specific cells with scaffolds obtained from natural sources may result in improved regeneration of human tissues. Decellularization of the native tissue is the first step in this technology. Effective decellularization uses agents that lyse cells and remove all cellular materials, leaving intact collagenous extracellular matrices (ECMs). Removing cellular remnants prevents an immune response while preserving the underlying structure. In this study, the impact of five decellularization agents (0...
June 16, 2016: Journal of Biomaterials Applications
https://www.readbyqxmd.com/read/27219338/antigenic-characterization-of-influenza-viruses-produced-using-synthetic-dna-and-novel-backbones
#8
Pirada Suphaphiphat, Lynne Whittaker, Ivna De Souza, Rodney S Daniels, Philip R Dormitzer, John W McCauley, Ethan C Settembre
The global system for manufacturing seasonal influenza vaccines has been developed to respond to the natural evolution of influenza viruses, but the problem of antigenic mismatch continues to be a challenge in certain years. In some years, mismatches arise naturally due to the antigenic drift of circulating viruses after vaccine strain selection has already been made. In other years, antigenic differences between the vaccine virus and circulating viruses are introduced as part of the current system, which relies on the use of egg-adapted isolates as a starting material for candidate vaccine viruses (CVVs)...
July 12, 2016: Vaccine
https://www.readbyqxmd.com/read/26925843/transcriptome-analysis-for-identification-of-genes-related-to-gonad-differentiation-growth-immune-response-and-marker-discovery-in-the-turbot-scophthalmus-maximus
#9
Deyou Ma, Aijun Ma, Zhihui Huang, Guangning Wang, Ting Wang, Dandan Xia, Benhe Ma
BACKGROUND: Turbot Scophthalmus maximus is an economically important species extensively aquacultured in China. The genetic selection program is necessary and urgent for the sustainable development of this industry, requiring more and more genome background knowledge. Transcriptome sequencing is an excellent alternative way to identify transcripts involved in specific biological processes and exploit a considerable quantity of molecular makers when no genome sequences are available. In this study, a comprehensive transcript dataset for major tissues of S...
2016: PloS One
https://www.readbyqxmd.com/read/26645109/natural-scaffolds-for-renal-differentiation-of-human-embryonic-stem-cells-for-kidney-tissue-engineering
#10
Cynthia A Batchelder, Michele L Martinez, Alice F Tarantal
Despite the enthusiasm for bioengineering of functional renal tissues for transplantation, many obstacles remain before the potential of this technology can be realized in a clinical setting. Viable tissue engineering strategies for the kidney require identification of the necessary cell populations, efficient scaffolds, and the 3D culture conditions to develop and support the unique architecture and physiological function of this vital organ. Our studies have previously demonstrated that decellularized sections of rhesus monkey kidneys of all age groups provide a natural extracellular matrix (ECM) with sufficient structural properties with spatial and organizational influences on human embryonic stem cell (hESC) migration and differentiation...
2015: PloS One
https://www.readbyqxmd.com/read/26442628/ouabain-rescues-rat-nephrogenesis-during-intrauterine-growth-restriction-by-regulating-the-complement-and-coagulation-cascades-and-calcium-signaling-pathway
#11
L Chen, J Yue, X Han, J Li, Y Hu
Intrauterine growth restriction (IUGR) is associated with a reduction in the numbers of nephrons in neonates, which increases the risk of hypertension. Our previous study showed that ouabain protects the development of the embryonic kidney during IUGR. To explore this molecular mechanism, IUGR rats were induced by protein and calorie restriction throughout pregnancy, and ouabain was delivered using a mini osmotic pump. RNA sequencing technology was used to identify the differentially expressed genes (DEGs) of the embryonic kidneys...
February 2016: Journal of Developmental Origins of Health and Disease
https://www.readbyqxmd.com/read/26310553/-clinical-and-genetic-analysis-for-a-joubert-syndrome-family-with-cc2d2a-gene-mutations
#12
Yanhua Su, Jiansheng Xie, Shanshan Yu, Hongyu Luo, Weiqing Wu, Zhiyong Xu
OBJECTIVE: To confirm the genetic diagnosis for providing services for genetic counseling and prenatal diagnosis, we analyzed the clinical and genetic data of a pedigree which is clinically diagnosed as Joubert syndrome. METHOD: A Joubert syndrome pedigree was enrolled as subject of this study from our hospital's outpatients in 2013. Following the medical history collection of the proband and the suffering fetus, target sequence capture and the next-generation sequencing technology were used for the proband and the suffering fetus to find the causative genes and sanger sequencing for the members of the pedigree to check and verify if the inherited mutations are in accordance with the Mendelian inheritance...
June 2015: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://www.readbyqxmd.com/read/26190583/rna-interference-for-multiple-myeloma-therapy-targeting-signal-transduction-pathways
#13
REVIEW
Jianfeng Guo, Sharon L McKenna, Michael E O'Dwyer, Mary R Cahill, Caitriona M O'Driscoll
INTRODUCTION: Multiple myeloma (MM) is a hematological malignancy characterized by infiltration of malignant plasma cells in the bone marrow (BM) and end-organ damage to the bone, BM, kidney and immune system. Although current treatments have improved the treatment of MM, it still remains an incurable disease. RNA interference (RNAi) effectors such as microRNAs and small interference RNAs have shown potential to selectively downregulate genes implicated in the pathology of a range of diseases...
2016: Expert Opinion on Therapeutic Targets
https://www.readbyqxmd.com/read/26138291/effect-of-kidney-function-on-drug-kinetics-and-dosing-in-neonates-infants-and-children
#14
REVIEW
Frederique Rodieux, Melanie Wilbaux, Johannes N van den Anker, Marc Pfister
Neonates, infants, and children differ from adults in many aspects, not just in age, weight, and body composition. Growth, maturation and environmental factors affect drug kinetics, response and dosing in pediatric patients. Almost 80% of drugs have not been studied in children, and dosing of these drugs is derived from adult doses by adjusting for body weight/size. As developmental and maturational changes are complex processes, such simplified methods may result in subtherapeutic effects or adverse events...
December 2015: Clinical Pharmacokinetics
https://www.readbyqxmd.com/read/25993323/recent-developments-in-epigenetics-of-acute-and-chronic-kidney-diseases
#15
REVIEW
Marpadga A Reddy, Rama Natarajan
The growing epidemic of obesity and diabetes, the aging population as well as prevalence of drug abuse has led to significant increases in the rates of the closely associated acute and chronic kidney diseases, including diabetic nephropathy. Furthermore, evidence shows that parental behavior and diet can affect the phenotype of subsequent generations via epigenetic transmission mechanisms. These data suggest a strong influence of the environment on disease susceptibility and that, apart from genetic susceptibility, epigenetic mechanisms need to be evaluated to gain critical new information about kidney diseases...
August 2015: Kidney International
https://www.readbyqxmd.com/read/25931403/mineral-and-bone-disorders-in-kidney-transplant-recipients-reversible-irreversible-and-de-novo-abnormalities
#16
REVIEW
Takashi Hirukawa, Takatoshi Kakuta, Michio Nakamura, Masafumi Fukagawa
Given the advances in medical technologies related to kidney transplantation, the post-transplant graft survival rate and quality of life have improved dramatically. Nevertheless, post-transplant mortality rate still remains high as compared to the general population due to the development of cardiovascular events. It has recently been widely recognized that chronic kidney disease-mineral and bone disorders (CKD-MBD) significantly contribute to such poor prognosis at least in part. In the majority of kidney recipients, abnormal serum parameters for mineral and bone disorder (MBD), such as phosphorus, calcium, 1,25-dihydroxyvitamin D, parathyroid hormone and fibroblast growth factor 23, gradually return toward acceptable levels following the re-establishment of kidney function after transplantation; however, some irreversible abnormalities, developed as the result of long-term dialysis, persist, require treatment, or even progress after kidney transplantation...
August 2015: Clinical and Experimental Nephrology
https://www.readbyqxmd.com/read/25403742/optimization-and-critical-evaluation-of-decellularization-strategies-to-develop-renal-extracellular-matrix-scaffolds-as-biological-templates-for-organ-engineering-and-transplantation
#17
M Caralt, J S Uzarski, S Iacob, K P Obergfell, N Berg, B M Bijonowski, K M Kiefer, H H Ward, A Wandinger-Ness, W M Miller, Z J Zhang, M M Abecassis, J A Wertheim
The ability to generate patient-specific cells through induced pluripotent stem cell (iPSC) technology has encouraged development of three-dimensional extracellular matrix (ECM) scaffolds as bioactive substrates for cell differentiation with the long-range goal of bioengineering organs for transplantation. Perfusion decellularization uses the vasculature to remove resident cells, leaving an intact ECM template wherein new cells grow; however, a rigorous evaluative framework assessing ECM structural and biochemical quality is lacking...
January 2015: American Journal of Transplantation
https://www.readbyqxmd.com/read/25365191/novel-positively-charged-nanoparticle-labeling-for-in-vivo-imaging-of-adipose-tissue-derived-stem-cells
#18
Hiroshi Yukawa, Shingo Nakagawa, Yasuma Yoshizumi, Masaki Watanabe, Hiroaki Saito, Yoshitaka Miyamoto, Hirofumi Noguchi, Koichi Oishi, Kenji Ono, Makoto Sawada, Ichiro Kato, Daisuke Onoshima, Momoko Obayashi, Yumi Hayashi, Noritada Kaji, Tetsuya Ishikawa, Shuji Hayashi, Yoshinobu Baba
Stem cell transplantation has been expected to have various applications for regenerative medicine. However, in order to detect and trace the transplanted stem cells in the body, non-invasive and widely clinically available cell imaging technologies are required. In this paper, we focused on magnetic resonance (MR) imaging technology, and investigated whether the trimethylamino dextran-coated magnetic iron oxide nanoparticle -03 (TMADM-03), which was newly developed by our group, could be used for labeling adipose tissue-derived stem cells (ASCs) as a contrast agent...
2014: PloS One
https://www.readbyqxmd.com/read/25141265/novel-thromboxane-a2-analog-induced-iugr-mouse-model
#19
C Fung, A Brown, J Cox, C Callaway, R McKnight, R Lane
Rodents, particularly rats, are used in the majority of intrauterine growth restriction (IUGR) research. An important tool that is lacking in this field is the ability to impose IUGR on transgenic mice. We therefore developed a novel mouse model of chronic IUGR using U-46619, a thromboxane A2 (TXA2) analog, infusion. TXA2 overproduction is prevalent in human pregnancies complicated by cigarette smoking, diabetes mellitus and preeclampsia. In this model, U-46619 micro-osmotic pump infusion in the last week of C57BL/6J mouse gestation caused maternal hypertension...
October 2011: Journal of Developmental Origins of Health and Disease
https://www.readbyqxmd.com/read/24917526/imaging-modalities-for-the-in-vivo-surveillance-of-mesenchymal-stromal-cells
#20
REVIEW
Mohammad Ayaz Hossain, Tina Chowdhury, Atul Bagul
Bone marrow stromal cells exist as mesenchymal stromal cells (MSCs) and have the capacity to differentiate into multiple tissue types when subjected to appropriate culture conditions. This property of MSCs creates therapeutic opportunities in regenerative medicine for the treatment of damage to neural, cardiac and musculoskeletal tissues or acute kidney injury. The prerequisite for successful cell therapy is delivery of cells to the target tissue. Assessment of therapeutic outcomes utilize traditional methods to examine cell function of MSC populations involving routine biochemical or histological analysis for cell proliferation, protein synthesis and gene expression...
November 2015: Journal of Tissue Engineering and Regenerative Medicine
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