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https://www.readbyqxmd.com/read/28728573/splicing-arrays-reveal-novel-rbm10-targets-including-smn2-pre-mrna
#1
Leslie C Sutherland, Philippe Thibault, Mathieu Durand, Elvy Lapointe, Jose M Knee, Ariane Beauvais, Irina Kalatskaya, Sarah C Hunt, Julie J Loiselle, Justin G Roy, Sarah J Tessier, Gustavo Ybazeta, Lincoln Stein, Rashmi Kothary, Roscoe Klinck, Benoit Chabot
BACKGROUND: RBM10 is an RNA binding protein involved in message stabilization and alternative splicing regulation. The objective of the research described herein was to identify novel targets of RBM10-regulated splicing. To accomplish this, we downregulated RBM10 in human cell lines, using small interfering RNAs, then monitored alternative splicing, using a reverse transcription-PCR screening platform. RESULTS: RBM10 knockdown (KD) provoked alterations in splicing events in 10-20% of the pre-mRNAs, most of which had not been previously identified as RBM10 targets...
July 20, 2017: BMC Molecular Biology
https://www.readbyqxmd.com/read/28728474/sperm-donation-and-the-right-to-privacy
#2
Oliver Hallich
Sperm donation is an increasingly common method of assisted reproduction. In the debate on sperm donation, the right to privacy - construed as a right that refers to the limits of the realm of information to which others have access - plays a pivotal role with regard to two questions. The first question is whether the sperm donor's right to privacy implies his right to retain his anonymity, the second is whether the gamete recipients' right to privacy entitles them to withhold information about the circumstances of their conception from their donor-conceived offspring...
July 20, 2017: New Bioethics: a Multidisciplinary Journal of Biotechnology and the Body
https://www.readbyqxmd.com/read/28700993/the-impact-of-oxidative-stress-factors-on-the-viability-senescence-and-methylation-status-of-olfactory-bulb-derived-glial-cells-isolated-from-human-cadaver-donors
#3
Krzysztof Marycz, Katarzyna Kornicka, Jakub Grzesiak, Krzysztof A Tomaszewski, Dariusz Szarek, Paweł Kopacz
The olfactory bulb (OB) is a unique structure in the central nervous system that retains the ability to create new neuronal connections. Glial cells isolated from the OB have been recently considered as a novel and promising tool to establish an effective therapy for central nervous system injuries. Due to the hindered access to autologous tissue for cell isolation, an allogeneic source of tissues obtained postmortem has been proposed. In this study, we focused on the morphological and molecular characteristics of human OB-derived glial cells isolated postmortem, at different time points after a donor's death...
July 13, 2017: Cells, Tissues, Organs
https://www.readbyqxmd.com/read/28699758/resilience-of-malic-acid-natural-deep-eutectic-solvent-nanostructure-to-solidification-and-hydration
#4
Oliver S Hammond, Daniel Timothy Bowron, Andrew J Jackson, Thomas Arnold, Adrian Sanchez-Fernandez, Nikolaos Tsapatsaris, Victoria Garcia Sakai, Karen J Edler
Little is presently known about the unique nanostructure of Deep Eutectic Solvents (DES). The order of the liquid-solid phase transition is contended and whether DES-water mixtures are merely aqueous solutions, or have properties dominated by the eutectic pair, is unclear. Here, we unambiguously show the structure of choline chloride-malic acid (malicine) as a liquid, and also in solid and hydrated forms, using neutron total scattering on D/H isotope-substituted samples, and quasi-elastic neutron scattering (QENS)...
July 12, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28694811/latent-cytomegalovirus-cmv-infection-does-not-detrimentally-alter-t-cell-responses-in-the-healthy-old-but-increased-latent-cmv-carriage-is-related-to-expanded-cmv-specific-t-cells
#5
Sarah E Jackson, George X Sedikides, Georgina Okecha, Emma L Poole, John H Sinclair, Mark R Wills
Human cytomegalovirus (HCMV) primary infection and periodic reactivation of latent virus is generally well controlled by T-cell responses in healthy people. In older donors, overt HCMV disease is not generally seen despite the association of HCMV infection with increased risk of mortality. However, increases in HCMV DNA in urine of older people suggest that, although the immune response retains functionality, immunomodulation of the immune response due to lifelong viral carriage may alter its efficacy. Viral transcription is limited during latency to a handful of viral genes and there is both an IFNγ and cellular IL-10 CD4(+) T-cell response to HCMV latency-associated proteins...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28693999/-profunda-artery-perforator-flap-reliable-secondary-option-for-breast-reconstruction
#6
P Fosseprez, A Gerdom, M Servaes, C Deconinck, G Pirson, A Berners
BACKGROUND: In recent years, the DIEP-flap has become the standard for autologous breast reconstruction. However, when abdominal donor site is unavailable, secondary options are numerous. This report documents our experience with PAP-flap breast reconstruction. METHOD: We carried out a retrospective study of patients who underwent reconstructive breast surgery by PAP-flaps in our institution since 2014. RESULTS: Seventeen PAP-flaps were carried out in 15 patients, two of which received consecutive reconstruction of each breast at distinct intervals...
July 7, 2017: Annales de Chirurgie Plastique et Esthétique
https://www.readbyqxmd.com/read/28679475/cik-as-therapeutic-agents-against-tumors
#7
REVIEW
M Introna
Cytokine Induced Killer (CIK) cells are ex vivo expanded and activated T lymphocytes obtained by sequential incubation of Peripheral Blood Mononuclear cells (PBMNC) with Interferon γ (IFNG), anti CD3 monoclonal antibody OKT3 and IL2. These cells, while retaining few characteristics of the Effector memory T cells subpopulation, acquired during culture CD56 expression, as well as non specific, Natural Killer like, anti tumoral cytotoxicity. CIK cells from human are equivalent to expanded NKT cells in mouse...
July 2, 2017: Journal of Autoimmunity
https://www.readbyqxmd.com/read/28671689/reconstruction-of-the-mouse-extrahepatic-biliary-tree-using-primary-human-extrahepatic-cholangiocyte-organoids
#8
Fotios Sampaziotis, Alexander W Justin, Olivia C Tysoe, Stephen Sawiak, Edmund M Godfrey, Sara S Upponi, Richard L Gieseck, Miguel Cardoso de Brito, Natalie Lie Berntsen, María J Gómez-Vázquez, Daniel Ortmann, Loukia Yiangou, Alexander Ross, Johannes Bargehr, Alessandro Bertero, Mariëlle C F Zonneveld, Marianne T Pedersen, Matthias Pawlowski, Laura Valestrand, Pedro Madrigal, Nikitas Georgakopoulos, Negar Pirmadjid, Gregor M Skeldon, John Casey, Wenmiao Shu, Paulina M Materek, Kirsten E Snijders, Stephanie E Brown, Casey A Rimland, Ingrid Simonic, Susan E Davies, Kim B Jensen, Matthias Zilbauer, William T H Gelson, Graeme J Alexander, Sanjay Sinha, Nicholas R F Hannan, Thomas A Wynn, Tom H Karlsen, Espen Melum, Athina E Markaki, Kourosh Saeb-Parsy, Ludovic Vallier
The treatment of common bile duct (CBD) disorders, such as biliary atresia or ischemic strictures, is restricted by the lack of biliary tissue from healthy donors suitable for surgical reconstruction. Here we report a new method for the isolation and propagation of human cholangiocytes from the extrahepatic biliary tree in the form of extrahepatic cholangiocyte organoids (ECOs) for regenerative medicine applications. The resulting ECOs closely resemble primary cholangiocytes in terms of their transcriptomic profile and functional properties...
July 3, 2017: Nature Medicine
https://www.readbyqxmd.com/read/28662401/fibrillin-2-and-tenascin-c-bridge-the-age-gap-in-lung-epithelial-regeneration
#9
Sarah E Gilpin, Qiyao Li, Daniele Evangelista-Leite, Xi Ren, Dieter P Reinhardt, Brian L Frey, Harald C Ott
Organ engineering based on native matrix scaffolds involves combining regenerative cell populations with corresponding biological matrices to form functional grafts on-demand. The extracellular matrix (ECM) that is retained following lung decellularization provides essential structure and biophysical cues for whole organ regeneration after recellularization. The unique ECM composition in the early post-natal lung, during active alveologenesis, may possess distinct signals that aid in driving cell adhesion, survival, and proliferation...
June 22, 2017: Biomaterials
https://www.readbyqxmd.com/read/28652007/cytokines-affecting-cd4-t-regulatory-cells-in-transplant-tolerance-iii-interleukin-5-il-5-promotes-survival-of-alloantigen-specific-cd4-t-regulatory-cells
#10
Bruce M Hall, Karren M Plain, Giang T Tran, Nirupama D Verma, Catherine M Robinson, Masaru Nomura, Rochelle Boyd, Suzanne J Hodgkinson
CD4(+)T cells mediate antigen-specific allograft tolerance, but die in culture without activated lymphocyte derived cytokines. Supplementation of the media with cytokine rich supernatant, from ConA activated spleen cells, preserves the capacity of tolerant cells to transfer tolerance and suppress rejection. rIL-2 or rIL-4 alone are insufficient to maintain these cells, however. We observed that activation of naïve CD4(+)CD25(+)FOXP3(+)Treg with alloantigen and the Th2 cytokine rIL-4 induces them to express interleukin-5 specific receptor alpha (IL-5Rα) suggesting that IL-5, a Th2 cytokine that is produced later in the immune response may promote tolerance mediating Treg...
June 23, 2017: Transplant Immunology
https://www.readbyqxmd.com/read/28651644/a-new-use-for-an-old-index-preoperative-high-density-lipoprotein-predicts-recurrence-in-patients-with-hepatocellular-carcinoma-after-curative-resections
#11
Lu Tian, Qian Yu, Xing-Hui Gao, Jiong Wu, Xiao-Lu Ma, Qian Dai, Chun-Yan Zhang, Yan Zhou, Yi-Chi Zhang, Bai-Shen Pan, Jian Zhou, Jia Fan, Xin-Rong Yang, Wei Guo
BACKGROUND: Hepatocellular carcinoma has high incidence and mortality worldwide. Liver is the site of most metabolic biotransformation, which could reflect the status of cells. Most plasma apolipoproteins, endogenous lipids and lipoproteins are synthesized in the liver. Therefore, the effects of lipid metabolites on prognosis of HCC deserved to be explored. METHODS: We prospectively included 58 healthy donors (HD), 50 chronic hepatitis (CH) patients and a training cohort of 189 patients with HCC who underwent curative resections at Zhongshan Hospital from January 2012 to August 2012...
June 26, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28638110/a-novel-and-effective-method-to-generate-human-porcine-specific-regulatory-t-cells-with-high-expression-of-il-10-tgf-%C3%AE-1-and-il-35
#12
Mingqian Li, Judith Eckl, Christiane Geiger, Dolores J Schendel, Heike Pohla
Organ transplantation remains the most effective treatment for patients with late stage organ failure. Transgenic pigs provide an alternative organ donor source to the limited availability of human organs. However, cellular rejection still remains to be the obstacle for xenotransplantation. Superior to other methods, antigen-specific regulatory T cells (Treg) alleviate cellular rejection with fewer side effects. Here we demonstrate the use of a fast method to provide tolerogenic dendritic cells (tolDC) that can be used to generate effective porcine-specific Treg cells (PSTreg)...
June 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28637794/a-trpv1-to-secretagogin-regulatory-axis-controls-pancreatic-%C3%AE-cell-survival-by-modulating-protein-turnover
#13
Katarzyna Malenczyk, Fatima Girach, Edit Szodorai, Petter Storm, Åsa Segerstolpe, Giuseppe Tortoriello, Robert Schnell, Jan Mulder, Roman A Romanov, Erzsébet Borók, Fabiana Piscitelli, Vincenzo Di Marzo, Gábor Szabó, Rickard Sandberg, Stefan Kubicek, Gert Lubec, Tomas Hökfelt, Ludwig Wagner, Leif Groop, Tibor Harkany
Ca(2+)-sensor proteins are generally implicated in insulin release through SNARE interactions. Here, secretagogin, whose expression in human pancreatic islets correlates with their insulin content and the incidence of type 2 diabetes, is shown to orchestrate an unexpectedly distinct mechanism. Single-cell RNA-seq reveals retained expression of the TRP family members in β-cells from diabetic donors. Amongst these, pharmacological probing identifies Ca(2+)-permeable transient receptor potential vanilloid type 1 channels (TRPV1) as potent inducers of secretagogin expression through recruitment of Sp1 transcription factors...
July 14, 2017: EMBO Journal
https://www.readbyqxmd.com/read/28631900/-experimental-development-and-rationale-for-a-renal-decellularization-protocol-with-subsequent-comprehensive-assessment-of-the-biological-scaffold
#14
P V Glybochko, S N Alekseenko, E A Gubareva, E V Kuevda, A A Basov, A S Sotnichenko, S S Dzhimak, I S Gumenyuk, I Kh Egiev, V N Chechelyan, R Z Nakokhov, O M Lyasota, Yu V Teterin
Chronic renal failure (CRF) is one of the most challenging problems of contemporary medicine. Patients with chronic renal failure usually need renal replacement therapy as either hemodialysis, peritoneal dialysis or a kidney transplant. The latter is the most promising option for end-stage kidney disease. However, the shortage of donor organs, the complexity of their delivery, the difficulty in finding an immunologically compatible donor and the need for lifelong immunosuppression triggered advances in modern tissue engineering...
June 2017: Urologii︠a︡
https://www.readbyqxmd.com/read/28628602/procoagulant-activity-of-human-mesenchymal-stem-cells
#15
Barbara A Christy, Maryanne C Herzig, Robbie K Montgomery, Christopher Delavan, James A Bynum, Kristin M Reddoch, Andrew P Cap
BACKGROUND: Allogeneic mesenchymal stem cells (MSCs) show great potential for the treatment of military and civilian trauma based on their reduced immunogenicity and ability to modulate inflammation and immune function in the recipient. Although generally considered to be safe, MSCs express tissue factor (TF), a potent activator of coagulation. In the current study, we evaluated multiple MSC populations for tissue factor expression and procoagulant activity to characterize safety considerations for systemic use of MSCs in trauma patients who may have altered coagulation homeostasis...
July 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28616062/severe-consequences-of-habitat-fragmentation-on-genetic-diversity-of-an-endangered-australian-freshwater-fish-a-call-for-assisted-gene-flow
#16
Alexandra Pavlova, Luciano B Beheregaray, Rhys Coleman, Dean Gilligan, Katherine A Harrisson, Brett A Ingram, Joanne Kearns, Annika M Lamb, Mark Lintermans, Jarod Lyon, Thuy T T Nguyen, Minami Sasaki, Zeb Tonkin, Jian D L Yen, Paul Sunnucks
Genetic diversity underpins the ability of populations to persist and adapt to environmental changes. Substantial empirical data show that genetic diversity rapidly deteriorates in small and isolated populations due to genetic drift, leading to reduction in adaptive potential and fitness and increase in inbreeding. Assisted gene flow (e.g. via translocations) can reverse these trends, but lack of data on fitness loss and fear of impairing population "uniqueness" often prevents managers from acting. Here, we use population genetic and riverscape genetic analyses and simulations to explore the consequences of extensive habitat loss and fragmentation on population genetic diversity and future population trajectories of an endangered Australian freshwater fish, Macquarie perch Macquaria australasica...
July 2017: Evolutionary Applications
https://www.readbyqxmd.com/read/28615357/donor-pulmonary-intravascular-nonclassical-monocytes-recruit-recipient-neutrophils-and-mediate-primary-lung-allograft-dysfunction
#17
Zhikun Zheng, Stephen Chiu, Mahzad Akbarpour, Haiying Sun, Paul A Reyfman, Kishore R Anekalla, Hiam Abdala-Valencia, Daphne Edgren, Wenjun Li, Daniel Kreisel, Farida V Korobova, Ramiro Fernandez, Alexandra McQuattie-Pimentel, Zheng J Zhang, Harris Perlman, Alexander V Misharin, G R Scott Budinger, Ankit Bharat
Primary graft dysfunction is the predominant driver of mortality and graft loss after lung transplantation. Recruitment of neutrophils as a result of ischemia-reperfusion injury is thought to cause primary graft dysfunction; however, the mechanisms that regulate neutrophil influx into the injured lung are incompletely understood. We found that donor-derived intravascular nonclassical monocytes (NCMs) are retained in human and murine donor lungs used in transplantation and can be visualized at sites of endothelial injury after reperfusion...
June 14, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28610596/complete-human-serum-maintains-viability-and-chondrogenic-potential-of-human-synovial-stem-cells-suitable-conditions-for-transplantation
#18
Mitsuru Mizuno, Hisako Katano, Koji Otabe, Keiichiro Komori, Yuji Kohno, Shizuka Fujii, Nobutake Ozeki, Masafumi Horie, Kunikazu Tsuji, Hideyuki Koga, Takeshi Muneta, Ichiro Sekiya
BACKGROUND: In our clinical practice, we perform transplantations of autologous synovial mesenchymal stem cells (MSCs) for cartilage and meniscus regenerative medicine. One of the most important issues to ensuring clinical efficacy involves the transport of synovial MSCs from the processing facility to the clinic. Complete human serum (100% human serum) is an attractive candidate material in which to suspend synovial MSCs for their preservation during transport. The purpose of this study was to investigate whether complete human serum maintained MSC viability and chondrogenic potential and to examine the optimal temperature conditions for the preservation of human synovial MSCs...
June 13, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28607287/does-carbon-dioxide-pneumoperitoneum-affect-the-renal-function-in-donors-following-laparoscopic-donor-nephrectomy-a-prospective-study
#19
Murali Vinodh, Vijaykumar Mohankumar, Arvind Ganpule, Banibrata Mukhopadhyay, Ravindra Sabnis, Mahesh Desai
CONTEXT: Although the technical feasibility of laparoscopic donor nephrectomy (LDN) has been established, concerns have been raised about the impaired renal function resulting from pneumoperitoneum and its short- and long-term effects. AIMS: We used urinary biomarkers of acute kidney injury including urinary neutrophil gelatinase-associated lipocalin (uNGAL) and urinary N-acetyl-beta-D-glucosaminidase (uNAG) to study the injury caused to the donor's retained kidney by pneumoperitoneum...
July 2017: Journal of Minimal Access Surgery
https://www.readbyqxmd.com/read/28607108/kv2-1-clustering-contributes-to-insulin-exocytosis-and-rescues-human-%C3%AE-cell-dysfunction
#20
Jianyang Fu, Xiaoqing Dai, Gregory Plummer, Kunimasa Suzuki, Austin Bautista, John M Githaka, Laura Senior, Mette Jensen, Dafna Greitzer-Antes, Jocelyn E Manning Fox, Herbert Y Gaisano, Christopher B Newgard, Nicolas Touret, Patrick E MacDonald
Insulin exocytosis is regulated by ion channels that control excitability and Ca(2+) influx. Channels also play an increasingly appreciated role in microdomain structure. In this study, we examine the mechanism by which the voltage-dependent K(+) (Kv) channel Kv2.1 (KCNB1) facilitates depolarization-induced exocytosis in INS 832/13 cells and β-cells from human donors with and without type 2 diabetes (T2D). We find that Kv2.1, but not Kv2.2 (KCNB2), forms clusters of 6-12 tetrameric channels at the plasma membrane and facilitates insulin exocytosis...
July 2017: Diabetes
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