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https://www.readbyqxmd.com/read/29055244/a-pilot-study-comparing-mechanical-properties-of-tissue-engineered-cartilages-and-various-endogenous-cartilages
#1
Andrew K Pappa, Sajjad Soleimani, Montserrat Caballero, Alexandra E Halevi, John A van Aalst
BACKGROUND: Mechanical properties of tissue-engineered cartilage and a variety of endogenous cartilage were measured. The main goal was to evaluate if the tissue-engineered cartilage have similar mechanical characteristics to be replaced with rib cartilage in microtia reconstruction. Such study lays the foundation for future human clinical trials for microtia reconstruction. METHOD: Atomic force microscopy and compression testing were used to measure the viscoelasticity of tissue-engineered cartilage (stem cell seeded on Poly lactic co-glycolytic acid nanofibers and Pellet) and endogenous cartilage: conchal bowl, microtic ears, preauricular remnants, and rib...
October 10, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/29055226/generation-of-an-induced-pluripotent-stem-cell-line-ibms-ipsc-014-05-from-a-female-autosomal-dominant-polycystic-kidney-disease-patient-carrying-a-common-mutation-of-r803x-in-pkd2
#2
Ming-Ching Ho, Ching-Ying Huang, Jia-Jung Lee, Shih-Han Hsu, Yu-Che Cheng, Yu-Hung Hsu, Daw-Yang Hwang, Huai-En Lu, Hung-Chun Chen, Patrick C H Hsieh
Autosomal dominant polycystic kidney disease (ADPKD) is one of the most commonly inherited forms of polycystic kidney disease, and is characterized by the growth of numerous cysts in both kidneys. Here we generated an induced pluripotent stem cell (iPSC) line from the peripheral blood mononuclear cells (PBMCs) of a 63-year-old female ADPKD patient carrying an R803X mutation in the PKD2 gene using the Sendai-virus delivery system. Downstream characterization of these iPSCs showed that they possessed normal karyotyping, were free of genomic integration, retained the disease-causing PKD2 mutation, expressed pluripotency markers and could differentiate into three germ layers...
October 10, 2017: Stem Cell Research
https://www.readbyqxmd.com/read/29055209/long-term-survival-of-sorafenib-treated-flt3-itd-positive-acute-myeloid-leukaemia-patients-relapsing%C3%A2-after-allogeneic-stem-cell-transplantation
#3
S K Metzelder, T Schroeder, M Lübbert, M Ditschkowski, K Götze, S Scholl, R G Meyer, P Dreger, N Basara, M F Fey, H R Salih, A Finck, T Pabst, A Giagounidis, G Kobbe, E Wollmer, J Finke, A Neubauer, A Burchert
BACKGROUND: Fms-like tyrosine kinase 3 internal tandem duplication (FLT3-ITD)-positive acute myeloid leukaemia (AML) relapsing after allogeneic stem cell transplantation (allo-SCT) has a dismal prognosis with limited therapeutic options. FLT3-ITD kinase inhibition is a reasonable but palliative experimental treatment alternative in this situation. Information on long-term outcome is not available. METHODS: We performed a long-term follow-up analysis of a previously reported cohort of 29 FLT3-ITD-positive AML patients, which were treated in relapse after allo-SCT with sorafenib monotherapy...
October 18, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/29055097/sequencing-of-the-novel-hla-a-02-01-72-allele-in-a-chinese-hematopoietic-stem-cell-donor
#4
X Zhang, F-Q Lin, C Wu, B Zhang, J-P Li
HLA-A*02:01:72 has one synonymous nucleotide change from HLA-A*02:01:01:01 where 591 G is changed to A.
October 20, 2017: HLA
https://www.readbyqxmd.com/read/29055073/ppnac1-a-main-regulator-of-phenylalanine-biosynthesis-and-utilization-in-maritime-pine
#5
Mª Belén Pascual, María-Teresa Llebrés, Blanca Craven-Bartle, Rafael A Cañas, Francisco M Cánovas, Concepción Ávila
The transcriptional regulation of phenylalanine metabolism is particularly important in conifers, long-lived species that use large amounts of carbon in wood. Here, we show that the Pinus pinaster transcription factor, PpNAC1, is a main regulator of phenylalanine biosynthesis and utilization. A phylogenetic analysis classified PpNAC1 in the NST proteins group, and was selected for functional characterization. PpNAC1 is predominantly expressed in the secondary xylem and compression wood of adult trees. Silencing of PpNAC1 in P...
October 21, 2017: Plant Biotechnology Journal
https://www.readbyqxmd.com/read/29055061/preservation-of-stem-cells-in-androgenetic-alopecia
#6
Hend Gamil, Magda Assaf, Manal Elsayed, Khaled Gharib, Mohamed Soliman, Naglaa A Mostafa
Androgenetic alopecia is characterized by progressive, patterned hair loss from the scalp that occurs in both men and women. Suggested that genetically predisposed hair follicles are target for androgen-stimulated follicle miniaturization, with gradual replacement of terminal hairs by vellus hairs. We aimed at evaluating the expression of stem and progenitor cell markers using IHC in scalp biopsies from affected and unaffected areas of patients with AGA. This article is protected by copyright. All rights reserved...
October 21, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/29055047/species-specific-role-of-gene-adjacent-retroelements-in-human-and-mouse-gastric-carcinogenesis
#7
REVIEW
Mun-Gan Rhyu, Jung-Hwan Oh, Seung-Jin Hong
Helicobacter pylori (HP) infection promotes the recruitment of bone marrow stem cells into chronic gastritis lesions. Some of these marrow stem cells can differentiate into gastric epithelial cells and neoplastic cells. We propose that HP-associated methylation could stabilize trans-differentiation of marrow-derived stem cells and that an unstable methylation status is associated with a risk of gastric cancer. Pathobiologic behavior of experimental mouse gastric cancer is mild compared to invasive and metastatic human gastric cancer...
October 21, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29055041/the-possible-clinical-impact-of-risperidone-on-p-glycoprotein-mediated-transport-of-tacrolimus-a-case-report-and-in-vitro-study
#8
Nao Watanabe, Hiroki Higashi, Saki Nakamura, Keiko Nomura, Yuichi Adachi, Masato Taguchi
The authors encountered the case of an 8-fold increase in the concentration/dose (C/D) ratio of tacrolimus (TAC) following the coadministration of voriconazole (VRCZ) in a hematopoietic stem cell transplantation (HSCT) recipient. The interaction observed was much greater than expected and the patient had also been treated with oral risperidone (RSP). We hypothesized that cytochrome P450 (CYP)3A inhibition of the small intestine by VRCZ and P-glycoprotein (P-gp) inhibition of the small intestine by RSP exerted a synergistic effect on the bioavailability of TAC...
October 20, 2017: Biopharmaceutics & Drug Disposition
https://www.readbyqxmd.com/read/29054931/polycomb-group-ring-finger-protein-3-5-activate-transcription-via-an-interaction-with-the-pluripotency-factor-tex10-in-embryonic-stem-cells
#9
Wukui Zhao, Yikai Huang, Jingzi Zhang, Mengjie Liu, Haijing Ji, Congcong Wang, Ning Cao, Chaojun Li, Yin Xia, Qing Jiang, Jinzhong Qin
Polycomb group (PcG) proteins are epigenetic transcriptional repressors that orchestrate numerous developmental processes and have been implicated in the maintenance of embryonic stem (ES) cell state. More recent evidence suggests that a subset of PcG proteins engages in transcriptional activation in some cellular contexts. But how this property is exerted remains largely unknown. Here, we generated ES cells with single or combined disruption of Polycomb group RING finger protein 3 (Pcgf3) and Pcgf5 with the CRISPR-Cas9 technique...
October 20, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29054815/whole-brain-radiotherapy-or-autologous-stem-cell-transplantation-as-consolidation-strategies-after-high-dose-methotrexate-based-chemoimmunotherapy-in-patients-with-primary-cns-lymphoma-results-of-the-second-randomisation-of-the-international-extranodal-lymphoma
#10
Andrés J M Ferreri, Kate Cwynarski, Elisa Pulczynski, Christopher P Fox, Elisabeth Schorb, Paul La Rosée, Mascha Binder, Alberto Fabbri, Valter Torri, Eleonora Minacapelli, Monica Falautano, Fiorella Ilariucci, Achille Ambrosetti, Alexander Roth, Claire Hemmaway, Peter Johnson, Kim M Linton, Tobias Pukrop, Jette Sønderskov Gørløv, Monica Balzarotti, Georg Hess, Ulrich Keller, Stephan Stilgenbauer, Jens Panse, Alessandra Tucci, Lorella Orsucci, Francesco Pisani, Alessandro Levis, Stefan W Krause, Hans J Schmoll, Bernd Hertenstein, Mathias Rummel, Jeffery Smith, Michael Pfreundschuh, Giuseppina Cabras, Francesco Angrilli, Maurilio Ponzoni, Martina Deckert, Letterio S Politi, Jürgen Finke, Michele Reni, Franco Cavalli, Emanuele Zucca, Gerald Illerhaus
BACKGROUND: The International Extranodal Lymphoma Study Group-32 (IELSG32) trial is an international randomised phase 2 study that addresses two key clinical questions in the treatment of patients with newly diagnosed primary CNS lymphoma. Results of the first randomisation have demonstrated that methotrexate, cytarabine, thiotepa, and rituximab (called the MATRix regimen) is the induction combination associated with significantly better outcome compared with the other induction combinations tested...
October 17, 2017: Lancet Haematology
https://www.readbyqxmd.com/read/29054608/a-sweet-spot-for-fluid-induced-oscillations-in-the-conditioning-of-stem-cell-based-engineered-heart-valve-tissues
#11
Alexander Williams, Sana Nasim, Manuel Salinas, Arash Moshkforoush, Nikolaos Tsoukias, Sharan Ramaswamy
Fluid-induced shear stresses are involved in the development of cardiovascular tissues. In a tissue engineering framework, this stimulus has also been considered as a mechanical regulator of stem cell differentiation. We recently demonstrated that the fluid-oscillating effect in combination with a physiologically-relevant shear stress magnitude contributes to the formation of stem cell-derived de novo heart valve tissues. However, the range of oscillations necessary to induce favorable gene expression and engineered tissue formation is unknown...
October 7, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/29054607/repigmentation-of-human-vitiligo-skin-by-nbuvb-is-controlled-by-transcription-of-gli1-and-activation-of-%C3%AE-catenin-pathway-in-the-hair-follicle-bulge-stem-cells
#12
Nathaniel B Goldstein, Maranke I Koster, Kenneth L Jones, Bifeng Gao, Laura G Hoaglin, Steven E Robinson, Michael J Wright, Smaranda I Birlea, Abigail Luman, Karoline A Lambert, Yiqun G Shellman, Mayumi Fujita, William A Robinson, Dennis R Roop, David A Norris, Stanca A Birlea
Vitiligo repigmentation is a complex process in which the melanocyte-depleted interfollicular epidermis (IE) is repopulated by melanocyte precursors from hair follicle (HF) bulge that proliferate, migrate, and differentiate into mature melanocytes on their way to the epidermis. The strongest stimulus for vitiligo repigmentation is narrow band UVB (NBUVB), but how the HF melanocyte precursors are activated by UV light has not been extensively studied. To better understand this process, we developed an application that combined laser capture microdissection and subsequent whole transcriptome RNA sequencing of HF bulge melanocyte precursors, and compared their gene signature to that of regenerated mature epidermal melanocytes from the NBUVB-treated vitiligo skin...
October 17, 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/29054545/chac2-is-essential-for-self-renewal-and-glutathione-maintenance-in-human-embryonic-stem-cells
#13
Cheng-Kai Wang, Shang-Chih Yang, Shu-Ching Hsu, Fang-Pei Chang, Yu-Tsen Lin, Shang-Fu Chen, Chin-Lun Cheng, Michael Hsiao, Frank Leigh Lu, Jean Lu
Glutathione (GSH), the major non-enzymatic antioxidant, plays a critical role in cellular reactive oxygen species (ROS) neutralization. Moreover, GSH is required for the self-renewal maintenance of human embryonic stem cells (hESCs), and is highly accumulated in undifferentiated cells. Among 8 GSH biosynthesis-related enzymes, we found CHAC2 is highly enriched in undifferentiated hESCs. CHAC2 downregulation in hESCs efficiently decreased the levels of GSH and blocked self-renewal. The self-renewal of sh-CHAC2 cells can be rescued by GSH supplement...
October 17, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/29054531/the-ammonia-transporter-rhcg-modulates-urinary-acidification-by-interacting-with-the-vacuolar-proton-atpases-in-renal-intercalated-cells
#14
Soline Bourgeois, Lisa Bounoure, Isabelle Mouro-Chanteloup, Yves Colin, Dennis Brown, Carsten A Wagner
Ammonium, stemming from renal ammoniagenesis, is a major urinary proton buffer and is excreted along the collecting duct. This process depends on the concomitant secretion of ammonia by the ammonia channel RhCG and of protons by the vacuolar-type proton-ATPase pump. Thus, urinary ammonium content and urinary acidification are tightly linked. However, mice lacking Rhcg excrete more alkaline urine despite lower urinary ammonium, suggesting an unexpected role of Rhcg in urinary acidification. RhCG and the B1 and B2 proton-ATPase subunits could be co-immunoprecipitated from kidney...
October 17, 2017: Kidney International
https://www.readbyqxmd.com/read/29054476/extracellular-vesicles-as-emerging-targets-in-cancer-recent-development-from-bench-to-bedside
#15
REVIEW
Kerui Wu, Fei Xing, Shih-Ying Wu, Kounosuke Watabe
Extracellular vesicles (EVs) have emerged as important players of cancer initiation and progression through cell-cell communication. They have been recognized as critical mediators of extracellular communications, which promote transformation, growth invasion, and drug-resistance of cancer cells. Interestingly, the secretion and uptake of EVs are regulated in a more controlled manner than previously anticipated. EVs are classified into three groups, (i) exosomes, (ii) microvesicles (MVs), and (iii) apoptotic bodies (ABs), based on their sizes and origins, and novel technologies to isolate and distinguish these EVs are evolving...
October 17, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29054474/deubiquitylating-enzymes-as-cancer-stem-cell-therapeutics
#16
REVIEW
Saba Haq, Bharathi Suresh, Suresh Ramakrishna
The focus of basic and applied research on core stem cell transcription factors has paved the way to initial delineation of their characteristics, their regulatory mechanisms, and the applicability of their regulatory proteins for protein-induced pluripotent stem cells (protein-IPSC) generation and in further clinical settings. Striking parallels have been observed between cancer stem cells (CSCs) and stem cells. For the maintenance of stem cells and CSC pluripotency and differentiation, post translational modifications (i...
October 17, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29054455/dadle-enhances-viability-and-anti-inflammatory-effect-of-human-mscs-subjected-to-serum-free-apoptotic-condition-in-part-via-the-dor-pi3k-akt-pathway
#17
L Vinod Kumar Reddy, Dwaipayan Sen
AIM: Nutritional deprivation and inflammation-rich zones are the major causative reasons for poor survivability of transplanted mesenchymal stem cells (MSCs). Therefore in the present study, we demonstrated the cytoprotective and anti-inflammatory effects of activated delta (δ)-opioid receptor (DOR) with synthetic peptide [D-Ala(2), D-Leu(5)]-enkephalin (DADLE) treatment on human MSCs cultured in serum-starved condition. MAIN METHODS: Cell viability was measured using MTT and Annexin V/PI assays...
October 17, 2017: Life Sciences
https://www.readbyqxmd.com/read/29054436/in-vitro-and-ex-vivo-screening-of-candidate-therapeutics-to-restore-neurotransmission-in-nerve-terminals-intoxicated-by-botulinum-neurotoxin-serotype-a1
#18
Phillip H Beske, Aaron B Bradford, Katie M Hoffman, Sydney Mason, Patrick M McNutt
Botulinum neurotoxins (BoNTs) are exceedingly potent neurological poisons that block cholinergic release in the peripheral nervous system and cause death by asphyxiation. While post-exposure prophylaxis can effectively eliminate toxin in the bloodstream, there are no clinically effective treatments to prevent or reverse disease once BoNT has entered the neuron. To address the need for post-symptomatic countermeasures, we designed and developed an in vitro assay based on whole-cell, patch-clamp electrophysiological monitoring of miniature excitatory post-synaptic currents in synaptically active murine embryonic stem cell-derived neurons...
October 17, 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/29054420/selenium-and-cancer-stem-cells
#19
Giuseppe Murdolo, Desirée Bartolini, Cristina Tortoioli, Marta Piroddi, Pierangelo Torquato, Francesco Galli
Selenium (Se) is an essential micronutrient that functions as "redox gatekeeper" and homeostasis factor of normal and cancer cells. Epidemiology and experimental studies, in the last years suggested that both inorganic and organic forms of Se may have favorable health effects. In this regard, a protective action of Se on cellular systems that may help preventing cancer cell differentiation has been demonstrated, while the hypothesis that Se compounds may cure cancer and its metastatic diffusion appears speculative and is still a matter of investigation...
2017: Advances in Cancer Research
https://www.readbyqxmd.com/read/29054417/the-regulation-of-pathways-of-inflammation-and-resolution-in-immune-cells-and-cancer-stem-cells-by-selenium
#20
Bastihalli T Diwakar, Arvind M Korwar, Robert F Paulson, K Sandeep Prabhu
Cancer is a complex disease where cancer stem cells (CSCs) maintain unlimited replicative potential, but evade chemotherapy drugs through cellular quiescence. CSCs are able to give rise to bulk tumor cells that have the capability to override antiproliferative signals and evade apoptosis. Numerous pathways are dysregulated in tumor cells, where increased levels of prooxidant reactive oxygen and nitrogen species can lead to localized inflammation to exacerbate all three stages of tumorigenesis: initiation, progression, and metastasis...
2017: Advances in Cancer Research
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