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Tissue Expansion

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https://www.readbyqxmd.com/read/28640866/diet-induced-adipose-tissue-expansion-is-mitigated-in-mice-with-a-targeted-inactivation-of-mesoderm-specific-transcript-mest
#1
Rea P Anunciado-Koza, Justin Manuel, Randall L Mynatt, Jingying Zhang, Leslie P Kozak, Robert A Koza
Interindividual variation of white adipose tissue (WAT) expression of mesoderm specific transcript (Mest), a paternally-expressed imprinted gene belonging to the α/β-hydrolase fold protein family, becomes apparent among genetically inbred mice fed high fat diet (HFD) and is positively associated with adipose tissue expansion (ATE). To elucidate a role for MEST in ATE, mice were developed with global and adipose tissue inactivation of Mest. Mice with homozygous (MestgKO) and paternal allelic (MestpKO) inactivation of Mest were born at expected Mendelian frequencies, showed no behavioral or physical abnormalities, and did not perturb expression of the Mest locus-derived microRNA miR-335...
2017: PloS One
https://www.readbyqxmd.com/read/28636654/characterization-of-human-fcrl4-positive-b-cells
#2
Michel Jourdan, Nicolas Robert, Maïlys Cren, Coraline Thibaut, Christophe Duperray, Alboukadel Kassambara, Michel Cogné, Karin Tarte, Bernard Klein, Jérôme Moreaux
FCRL4 is an immunoregulatory receptor that belongs to the Fc receptor-like (FCRL) family. In healthy individuals, FCRL4 is specifically expressed by memory B cells (MBCs) localized in sub-epithelial regions of lymphoid tissues. Expansion of FCRL4+ B cells has been observed in blood and other tissues in various infectious and autoimmune disorders. Currently, the mechanisms involved in pathological FCRL4+ B cell generation are actively studied, but they remain elusive. As in vivo FCRL4+ cells are difficult to access and to isolate, here we developed a culture system to generate in vitro FCRL4+ B cells from purified MBCs upon stimulation with soluble CD40 ligand and/or CpG DNA to mimic T-cell dependent and/or T-cell independent activation, respectively...
2017: PloS One
https://www.readbyqxmd.com/read/28635517/a-primer-for-oncoimmunology-immunooncology
#3
Brad Bolon, Famke Aeffner
Oncoimmunology (or immunooncology) is a burgeoning specialty of precision ("personalized") medicine designed to heighten the antitumor response of the immune system against molecules expressed excessively or only by tumor cells. This focus is necessary, as cancers are polyclonal tissues comprised of antigenically heterogeneous cells, the exact composition of which is shaped by the balance between antitumor immunity and tumor-promoting inflammation. Key targets include enhancing immune system (especially T cell) reactivity, inhibiting immune checkpoints, and promoting tumor cytolysis...
January 1, 2017: Toxicologic Pathology
https://www.readbyqxmd.com/read/28630894/next-generation-probes-particles-and-proteins-for-neural-interfacing
#4
REVIEW
Jonathan Rivnay, Huiliang Wang, Lief Fenno, Karl Deisseroth, George G Malliaras
Bidirectional interfacing with the nervous system enables neuroscience research, diagnosis, and therapy. This two-way communication allows us to monitor the state of the brain and its composite networks and cells as well as to influence them to treat disease or repair/restore sensory or motor function. To provide the most stable and effective interface, the tools of the trade must bridge the soft, ion-rich, and evolving nature of neural tissue with the largely rigid, static realm of microelectronics and medical instruments that allow for readout, analysis, and/or control...
June 2017: Science Advances
https://www.readbyqxmd.com/read/28627438/genome-wide-identification-phylogeny-and-expression-of-bone-morphogenetic-protein-genes-in-tetraploidized-common-carp-cyprinus-carpio
#5
Lin Chen, Chuanju Dong, Shengnan Kong, Jiangfan Zhang, Xuejun Li, Peng Xu
Bone morphogenetic proteins (Bmps) are a group of signaling molecules known to play important roles during formation and maintenance of various organs, not only bone, but also muscle, blood and so on. Common carp (Cyprinus carpio) is one of the most intensively studied fish due to its economic and environmental importance. Besides, common carp had encountered an additional round of whole genome duplication (WGD) compared with many closely related diploid teleost, which make it one of the most important models for genome evolutionary studies in teleost...
June 13, 2017: Gene
https://www.readbyqxmd.com/read/28627384/cadherin-genes-and-evolutionary-novelties-in-the-octopus
#6
REVIEW
Z Yan Wang, Clifton W Ragsdale
All animals with large brains must have molecular mechanisms to regulate neuronal process outgrowth and prevent neurite self-entanglement. In vertebrates, two major gene families implicated in these mechanisms are the clustered protocadherins and the atypical cadherins. However, the molecular mechanisms utilized in complex invertebrate brains, such as those of the cephalopods, remain largely unknown. Recently, we identified protocadherins and atypical cadherins in the octopus. The octopus protocadherin expansion shares features with the mammalian clustered protocadherins, including enrichment in neural tissues, clustered head-to-tail orientations in the genome, and a large first exon encoding all cadherin domains...
June 13, 2017: Seminars in Cell & Developmental Biology
https://www.readbyqxmd.com/read/28624222/targeting-dmpk-with-antisense-oligonucleotide-improves-muscle-strength-in-myotonic-dystrophy-type-1-mice
#7
Dominic Jauvin, Jessina Chrétien, Sanjay K Pandey, Laurie Martineau, Lucille Revillod, Guillaume Bassez, Aline Lachon, A Robert McLeod, Geneviève Gourdon, Thurman M Wheeler, Charles A Thornton, C Frank Bennett, Jack Puymirat
Myotonic dystrophy type 1 (DM1), a dominant hereditary muscular dystrophy, is caused by an abnormal expansion of a (CTG)n trinucleotide repeat in the 3' UTR of the human dystrophia myotonica protein kinase (DMPK) gene. As a consequence, mutant transcripts containing expanded CUG repeats are retained in nuclear foci and alter the function of splicing regulatory factors members of the MBNL and CELF families, resulting in alternative splicing misregulation of specific transcripts in affected DM1 tissues. In the present study, we treated DMSXL mice systemically with a 2'-4'-constrained, ethyl-modified (ISIS 486178) antisense oligonucleotide (ASO) targeted to the 3' UTR of the DMPK gene, which led to a 70% reduction in CUG(exp) RNA abundance and foci in different skeletal muscles and a 30% reduction in the heart...
June 16, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/28624204/crispr-cas9-directed-reassignment-of-the-gata1-initiation-codon-in-k562-cells-to-recapitulate-aml-in-down-syndrome
#8
Kevin M Bloh, Pawel A Bialk, Anilkumar Gopalakrishnapillai, E Anders Kolb, Eric B Kmiec
Using a CRISPR/Cas9 system, we have reengineered a translational start site in the GATA1 gene in K562 cells. This mutation accounts largely for the onset of myeloid leukemia in Down syndrome (ML-DS). For this reengineering, we utilized CRISPR/Cas9 to generate mammalian cell lines that express truncated versions of the Gata1s protein similar to that seen in ML-DS, as determined by analyzing specific genetic alterations resulting from CRISPR/Cas9 cleavage. During this work, 73 cell lines were clonally expanded, with allelic variance analyzed...
June 16, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/28624103/from-organoids-to-organs-bioengineering-liver-grafts-from%C3%A2-hepatic-stem-cells-and-matrix
#9
REVIEW
Jorke Willemse, Ruby Lieshout, Luc J W van der Laan, Monique M A Verstegen
Due to the complex function and structure of the liver, resourceful solutions for treating end-stage liver disease are required. Currently, liver transplantation is the only curative therapeutic option. However, due to a worldwide donor shortage, researchers have been looking in other fields for alternative sources of transplantable liver tissue. Recent advances in our understanding of liver physiology, stem cell and matrix biology, have accelerated tissue engineering research. Most notable is the discovery of a culture system to grow liver-like organoids from human hepatic stem cells...
April 2017: Best Practice & Research. Clinical Gastroenterology
https://www.readbyqxmd.com/read/28622294/hepatocyte-nuclear-factor-1b-is-a-novel-negative-regulator-of-white-adipocyte-differentiation
#10
Xin Wang, Hao Wu, Weihua Yu, Jiangzheng Liu, Jie Peng, Nai Liao, Jieling Zhang, Xiaodi Zhang, Chunxu Hai
Hepatocyte nuclear factor 1b (HNF1b) is a transcription factor belonging to the HNF family. We aimed to investigate the role of HNF1b in white adipocyte differentiation. The expression of HNF1b was reduced in white adipose tissue (WAT) of both diet-induced and genetic obese mice and decreased during the process of 3T3-L1 adipocyte differentiation. Downregulation of HNF1b enhanced 3T3-L1 adipocyte differentiation and upregulation of HNF1b inhibited this process. Upregulation of HNF1b inhibited peroxisome proliferator-activated receptor γ (PPARγ) and its target gene expression, while downregulation of HNF1b increased those genes expression...
June 16, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28622179/paucicellular-fibrointimal-proliferation-characterizes-pediatric-pulmonary-vein-stenosis-clinicopathologic-analysis-of-213-samples-from-97-patients
#11
Alexandra E Kovach, Philip M Magcalas, Christina Ireland, Kerry McEnany, Andre M Oliveira, Mark W Kieran, Christopher W Baird, Kathy Jenkins, Sara O Vargas
Pulmonary vein stenosis (PVS) is a luminal narrowing of extrapulmonary pulmonary veins. In pediatric patients, it arises following repair of congenital heart disease, particularly anomalous pulmonary venous return; in lung disease, especially prematurity; and rarely in isolation. The etiology is unknown and the course often fatal without lung transplantation. We hypothesized that systematic clinicopathologic review of pediatric PVS could provide further pathogenic insight. We included patients who underwent first resection of pulmonary venous tissue for symptomatic PVS at our pediatric referral center from 1995 to 2014...
June 15, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28620611/dogs-with-acute-myeloid-leukemia-have-clonal-rearrangements-in-t-and-b-cell-receptors
#12
Tracy Stokol, Gabrielle A Nickerson, Martha Shuman, Nicole Belcher
Clonality testing for rearrangements in the complementarity-determining region 3 of the immunoglobulin heavy chain of B lymphocytes (B cell receptor) and the T cell receptor of T lymphocytes helps distinguish between clonal and non-clonal expansions of lymphocytes. There are rare reports of clonally rearranged T and B cell receptors in dogs with acute myeloid leukemia (AML). Our objective was to determine the frequency of clonally rearranged T and B cell receptors in dogs with AML. Archived slides from historical cases of AML (from January 2010 to June 2013) and slides or liquid specimens [blood, bone marrow (BM), body cavity fluid, or tissue aspirates] from cases of AML diagnosed between June 2013 and February 2017 were used in the study...
2017: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/28617889/erdheim-chester-disease-presenting-with-histiocytic-colitis-and-cytokine-storm
#13
George P Christophi, Yeshika Sharma, Quader Farhan, Umang Jain, Ted Walker, Gregory S Sayuc, Deborah C Rubin
BACKGROUND: Non-Langerhans histiocytosis is a group of inflammatory lymphoproliferative disorders originating from non-clonal expansion of hematopoietic stem cells into cytokine-secreting dendritic cells or macrophages. Erdheim-Chester Disease (ECD) is a rare type of non-Langerhans cell histiocytosis characterized by tissue inflammation and injury caused by macrophage infiltration and histologic findings of foamy histiocytes. Often ECD involves the skeleton, retroperitoneum and the orbits...
June 2017: Journal of Gastrointestinal and Liver Diseases: JGLD
https://www.readbyqxmd.com/read/28617417/a-cohort-of-17-patients-with-kyphoscoliotic-ehlers-danlos-syndrome-caused-by-biallelic-mutations-in-fkbp14-expansion-of-the-clinical-and-mutational-spectrum-and-description-of-the-natural-history
#14
Cecilia Giunta, Matthias Baumann, Christine Fauth, Uschi Lindert, Ebtesam M Abdalla, Angela F Brady, James Collins, Jahannaz Dastgir, Sandra Donkervoort, Neeti Ghali, Diana S Johnson, Ariana Kariminejad, Johannes Koch, Marius Kraenzlin, Nayana Lahiri, Bernarda Lozic, Adnan Y Manzur, Jenny E V Morton, Jacek Pilch, Rebecca C Pollitt, Gudrun Schreiber, Nora L Shannon, Glenda Sobey, Anthony Vandersteen, Fleur S van Dijk, Martina Witsch-Baumgartner, Johannes Zschocke, F Michael Pope, Carsten G Bönnemann, Marianne Rohrbach
PurposeIn 2012 we reported in six individuals a clinical condition almost indistinguishable from PLOD1-kyphoscoliotic Ehlers-Danlos syndrome (PLOD1-kEDS), caused by biallelic mutations in FKBP14, and characterized by progressive kyphoscoliosis, myopathy, and hearing loss in addition to connective tissue abnormalities such as joint hypermobility and hyperelastic skin. FKBP14 is an ER-resident protein belonging to the family of FK506-binding peptidyl-prolyl cis-trans isomerases (PPIases); it catalyzes the folding of type III collagen and interacts with type III, type VI, and type X collagens...
June 15, 2017: Genetics in Medicine: Official Journal of the American College of Medical Genetics
https://www.readbyqxmd.com/read/28615818/minimising-the-donor-area-morbidity-of-radial-forearm-phalloplasty-using-prefabricated-thigh-flap-a-new-technique
#15
Aditya Aggarwal, Hardeep Singh, Sanjay Mahendru, Vimalendu Brajesh, Sukhdeep Singh, Nitin Ghag, Rakesh Kumar Khazanchi
Phalloplasty is indicated in various conditions of penile loss or absence. There are numerous techniques for phalloplasty including the pedicle and free flaps with the ultimate goal of micturition in standing position, attaining adequate size, aesthesis and sensations for sexual intercourse. Radial forearm phalloplasty is the gold standard flap to achieve above results but gives a very bad scar on the forearm. We present a technique of using prefabricated thigh flap to reduce the morbidity of donor area. The descending branch of lateral circumflex femoral pedicle was placed in a subcutaneous plane over tissue expander...
January 2017: Indian Journal of Plastic Surgery: Official Publication of the Association of Plastic Surgeons of India
https://www.readbyqxmd.com/read/28615133/platelet-rich-plasma-with-keratinocytes-and-fibroblasts-enhance-healing-of-full-thickness-wounds
#16
Jia Xian Law, Shiplu Roy Chowdhury, Aminuddin Bin Saim, Ruszymah Bt Hj Idrus
Advances in tissue engineering led to the development of various tissue-engineered skin substitutes (TESS) for the treatment of skin injuries. The majority of the autologous TESS required lengthy and costly cell expansion process to fabricate. In this study, we determine the possibility of using a low density of human skin cells suspended in platelet-rich plasma (PRP)-enriched medium to promote the healing of full-thickness skin wounds. To achieve this, full-thickness wounds of size 1.767 cm(2) were created at the dorsum part of nude mice and treated with keratinocytes (2 × 10(4) cells/cm(2)) and fibroblasts (3 × 10(4) cells/cm(2)) suspended in 10% PRP-enriched medium...
June 7, 2017: Journal of Tissue Viability
https://www.readbyqxmd.com/read/28614800/robust-memory-responses-against-influenza-vaccination-in-pemphigus-patients-previously-treated-with-rituximab
#17
Alice Cho, Bridget Bradley, Robert Kauffman, Lalita Priyamvada, Yevgeniy Kovalenkov, Ron Feldman, Jens Wrammert
Rituximab is a therapeutic anti-CD20 monoclonal antibody widely used to treat B cell lymphoma and autoimmune diseases, such as rheumatic arthritis, systemic lupus erythematosus, and autoimmune blistering skin diseases (AIBD). While rituximab fully depletes peripheral blood B cells, it remains unclear whether some preexisting B cell memory to pathogens or vaccines may survive depletion, especially in lymphoid tissues, and if these memory B cells can undergo homeostatic expansion during recovery from depletion...
June 15, 2017: JCI Insight
https://www.readbyqxmd.com/read/28614144/early-fibrinolysis-associated-with-hemorrhagic-progression-following-traumatic-brain-injury
#18
Jay Karri, Jessica C Cardenas, Nena Matijevic, Yao-Wei Wang, Sangbum Choi, Liang Zhu, Bryan A Cotton, Ryan Kitagawa, John B Holcomb, Charles E Wade
BACKGROUND: Progressive hemorrhagic injury (PHI) is common in patients with severe traumatic brain injury (TBI) and is associated with worse outcomes. PHI pathophysiology remains poorly understood and difficult to predict. We performed an exploratory analysis aimed at identify markers in need of further investigation to establish their predictive value in PHI following TBI. METHODS: We performed a retrospective chart review of prospectively collected data from 424 highest-level activation trauma patients from January 2012 through December 2013...
June 13, 2017: Shock
https://www.readbyqxmd.com/read/28613167/a-light-illumination-enhancement-device-for-photoacoustic-imaging-i-in-vivo-i-animal-study
#19
Jaesok Yu, Joel S Schuman, Jung-Kun Lee, Sang Goo Lee, Jin Ho Chang, Kang Kim
Photoacoustic (PA) imaging detects acoustic signals generated by thermal expansion of light excited tissue or contrast agents. PA signal amplitude and image quality directly depend on the light fluence at the target depth. With conventional PA imaging systems, approximately 30% energy of incident light at the near-infrared region would be lost due to reflection on the skin surface. Such light loss directly leads to a reduction of PA signal and image quality. A new light delivery scheme that collects and re-distributes reflected light energy was recently suggested, which is called the light catcher...
June 8, 2017: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/28612433/musculin-inhibits-human-t-helper-17-cell-response-to-interleukin-2-by-controlling-stat5b-activity
#20
Veronica Santarlasci, Alessio Mazzoni, Manuela Capone, Maria Caterina Rossi, Laura Maggi, Gianni Montaini, Beatrice Rossettini, Rolando Cimaz, Matteo Ramazzotti, Giusi Barra, Raffaele De Palma, Enrico Maggi, Francesco Liotta, Lorenzo Cosmi, Sergio Romagnani, Francesco Annunziato
We recently demonstrated that human T helper (Th) 17 cells, unlike Th1 cells, do not proliferate in response to T-cell receptor stimulation, mainly because of their reduced capacity to produce and respond to IL-2. In this study we show that their lower responsiveness to IL-2 is due to the selective expression of Musculin (MSC), a member of the basic helix-loop-helix transcription factors. We show that MSC expression in human Th17 cells is retinoic acid orphan receptor (ROR)γt-dependent, and allows the up-regulation of PPP2R2B, a regulatory member of the protein phosphatase 2A (PP2A) enzyme...
June 14, 2017: European Journal of Immunology
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