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https://www.readbyqxmd.com/read/29140806/florid-granuloma-annulare-like-reaction-in-regional-lymph-nodes-after-regression-of-red-pigment-in-tattoos
#1
Michael D Carter, Jonathan Trites, Shelly A McNeil, Noreen N M Walsh, Martin J Bullock
A healthy 50-year-old woman had a tattoo performed on the posterior aspect of her neck and another on the dorsum of her left foot. Several weeks later, she noted redness, tenderness, and intense pruritis at both tattoo sites. Treatment with cephalexin and hydrocortisone cream was instituted, without success. Within a few months, the red, but not black, pigment had disappeared from both tattoos and was replaced by pale areas of scarring. Persistently enlarged left supraclavicular and suboccipital lymph nodes were excised 7 and 10 months after receipt of the tattoos, respectively...
October 30, 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/29139613/nipple-sparing-mastectomy-as-treatment-for-patients-with-ductal-carcinoma-in%C3%A2-situ-a-10-year-follow-up-study
#2
Víctor Lago, Vincenzo Maisto, Julia Gimenez-Climent, Jose Vila, Carlos Vazquez, Rafael Estevan
The objective was to determine the 10-year oncological safety of nipple-sparing mastectomy (NSM) in patients diagnosed with ductal carcinoma in situ (DCIS). The use of NSM preserves the nipple-areola complex (NAC). As residual fibroglandular breast tissue can remain behind the spared NAC, its use for patient with breast cancer is controversial. The oncologic outcomes and complication rates after performing NSM compared to other techniques are still under debate and a concern when treating patients with breast cancer...
November 15, 2017: Breast Journal
https://www.readbyqxmd.com/read/29138638/tissue-source-and-cell-expansion-condition-influence-phenotypic-changes-of-adipose-derived-stem-cells
#3
Lauren H Mangum, Shanmugasundaram Natesan, Randolph Stone, Nicole L Wrice, David A Larson, Kyle F Florell, Barbara A Christy, Maryanne C Herzig, Andrew P Cap, Robert J Christy
Stem cells derived from the subcutaneous adipose tissue of debrided burned skin represent an appealing source of adipose-derived stem cells (ASCs) for regenerative medicine. Traditional tissue culture uses fetal bovine serum (FBS), which complicates utilization of ASCs in human medicine. Human platelet lysate (hPL) is one potential xeno-free, alternative supplement for use in ASC culture. In this study, adipogenic and osteogenic differentiation in media supplemented with 10% FBS or 10% hPL was compared in human ASCs derived from abdominoplasty (HAP) or from adipose associated with debrided burned skin (BH)...
2017: Stem Cells International
https://www.readbyqxmd.com/read/29138239/expanding-the-chondroitin-glycoproteome-of-caenorhabditis-elegans
#4
Fredrik Noborn, Alejandro Gomez Toledo, Waqas Nasir, Jonas Nilsson, Tabea Dierker, Lena Kjellén, Göran Larson
Chondroitin sulfate proteoglycans (CSPGs) are important structural components of connective tissues in essentially all metazoan organisms. In vertebrates, CSPGs are involved also in more specialized processes such as neurogenesis and growth factor signaling. In invertebrates, however, knowledge of CSPGs core proteins and proteoglycan-related functions is relatively limited, even for Caenorhabditis elegans. This nematode produces large amounts of non-sulfated chondroitin in addition to low-sulfated chondroitin sulfate chains...
November 14, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29138007/rbm4-srsf3-map4k4-splicing-cascade-modulates-the-metastatic-signature-of-colorectal-cancer-cell
#5
Jung-Chun Lin, Yuan-Chii Lee, Tse-Hua Tan, Yu-Chih Liang, Huai-Chia Chuang, Yang C Fann, Kory R Johnson, Ying-Ju Lin
Alternative splicing (AS) of pre-messenger (m)RNA is a pivotal mechanism in expanding proteomic diversity, which determines the functions of mammalian cells. By conducting transcriptome analyses to profile splicing events in human colorectal cancer (CRC) tissues compared to adjacent normal counterparts, we noted differential splicing profiles of serine/arginine-rich splicing factor 3 (SRSF3) and mitogen-activated protein 4 kinase 4 (MAP4K4) in cancerous tissues of CRC compared to adjacent normal tissues. In addition to SRSF3-mediated autoregulation, RNA-binding motif protein 4 (RBM4) constituted another mechanism in reprogramming the splicing profile of SRSF3...
November 11, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29137729/the-shear-wave-elastic-modulus-and-the-increased-nuclear-factor-kappa-b-nf-kb-p65-and-cyclooxygenase-2-cox-2-expression-in-the-area-of-myofascial-trigger-points-activated-in-a-rat-model-by-blunt-trauma-to-the-vastus-medialis
#6
Hengyong Lv, Zhen Li, Tiantian Hu, Yuexiang Wang, Jinpeng Wu, Yingxin Li
We aimed to elucidate the increased inflammatory cytokines expression such as nuclear factor kappa B (NF-kB/p65), cyclooxygenase-2 (COX-2), and voltage-gated calcium channels (VGCC) in the area of activated myofascial trigger points (MTrPs) in a rat model by blunt trauma to the vastus medialis and to evaluate the feasibility of a quantitative analysis of muscle elastic modulus using shear wave elastography (SWE). Twelve 7-week-old male SD rats were divided into normal (NM, n = 6) and model groups (MO, n = 6)...
November 6, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/29137155/identification-expression-and-functional-analysis-of-the-fructokinase-gene-family-in-cassava
#7
Yuan Yao, Meng-Ting Geng, Xiao-Hui Wu, Chong Sun, Yun-Lin Wang, Xia Chen, Lu Shang, Xiao-Hua Lu, Zhan Li, Rui-Mei Li, Shao-Ping Fu, Rui-Jun Duan, Jiao Liu, Xin-Wen Hu, Jian-Chun Guo
Fructokinase (FRK) proteins play important roles in catalyzing fructose phosphorylation and participate in the carbohydrate metabolism of storage organs in plants. To investigate the roles of FRKs in cassava tuber root development, seven FRK genes (MeFRK1-7) were identified, and MeFRK1-6 were isolated. Phylogenetic analysis revealed that the MeFRK family genes can be divided into α (MeFRK1, 2, 6, 7) and β (MeFRK3, 4, 5) groups. All the MeFRK proteins have typical conserved regions and substrate binding residues similar to those of the FRKs...
November 12, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29136407/phospholipase-d-inhibitors-reduce-human-prostate-cancer-cell-proliferation-and-colony-formation
#8
Amanda R Noble, Norman J Maitland, Daniel M Berney, Martin G Rumsby
BACKGROUND: Phospholipases D1 and D2 (PLD1/2) hydrolyse cell membrane glycerophospholipids to generate phosphatidic acid, a signalling lipid, which regulates cell growth and cancer progression through effects on mTOR and PKB/Akt. PLD expression and/or activity is raised in breast, colorectal, gastric, kidney and thyroid carcinomas but its role in prostate cancer (PCa), the major cancer of men in the western world, is unclear. METHODS: PLD1 protein expression in cultured PNT2C2, PNT1A, P4E6, LNCaP, PC3, PC3M, VCaP, 22RV1 cell lines and patient-derived PCa cells was analysed by western blotting...
November 14, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/29136313/in-situ-scatheless-cell-detachment-reveals-connections-between-adhesion-strength-and-viability-at-single-cell-resolution
#9
Sifeng Mao, Wanling Zhang, Qiushi Huang, Masqooh Khan, Haifang Li, Katsumi Uchiyama, Jin-Ming Lin
Single-cell biology provides insights to some of the most fundamental processes in biology and promotes the understanding of life's mysteries. And as the technologies to study single-cells expand, they will require sophisticated analytical tools to make sense of various behaviors and components of single-cells as well as their relations in adherent tissue culture. In this paper, we revealed cell heterogeneity and uncovered the connections between cell adhesion strength and cell viability at single-cell resolution by extracting single adherent cells of interest from standard tissue culture via a microfluidic chip based Live Single-Cell Extractor (LSCE)...
November 14, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/29136180/bcntb-bioinformatics-the-next-evolutionary-step-in-the-bioinformatics-of-breast-cancer-tissue-banking
#10
Emanuela Gadaleta, Stefano Pirrò, Abu Zafer Dayem Ullah, Jacek Marzec, Claude Chelala
Here, we present an update of Breast Cancer Now Tissue Bank bioinformatics, a rich platform for the sharing, mining, integration and analysis of breast cancer data. Its modalities provide researchers with access to a centralised information gateway from which they can access a network of bioinformatic resources to query findings from publicly available, in-house and experimental data generated using samples supplied from the Breast Cancer Now Tissue Bank. This in silico environment aims to help researchers use breast cancer data to their full potential, irrespective of any bioinformatics barriers...
October 9, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/29136137/copy-number-variation-and-expression-analysis-reveals-a-non-orthologous-pinta-gene-family-member-involved-in-butterfly-vision
#11
Aide Macias-Muñoz, Kyle J McCulloch, Adriana D Briscoe
Vertebrate (CRALBP) and Drosophila (PINTA) proteins with a CRAL-TRIO domain transport retinal-based chromophores that bind to opsin proteins and are necessary for phototransduction. The CRAL-TRIO domain gene family is composed of genes that encode proteins with a common N-terminal structural domain. While there is an expansion of this gene family in Lepidoptera, there is no lepidopteran ortholog of pinta. Further, the function of these genes in lepidopterans has not yet been established. Here we explored the molecular evolution and expression of CRAL-TRIO domain genes in the butterfly Heliconius melpomene in order to identify a member of this gene family as a candidate chromophore transporter...
November 9, 2017: Genome Biology and Evolution
https://www.readbyqxmd.com/read/29135896/vertical-skin-paddle-orientation-for-the-latissimus-dorsi-flap-in-breast-reconstruction-a-modification-to-simultaneously-correct-inferior-pole-constriction-and-improve-projection
#12
Megan Fracol, Michelle Grim, Steven Lanier, Neil A Fine
The latissimus dorsi myocutaneous flap (LDMF) is a reliable and frequently used option to bring vascularized skin and soft tissue to improve the stability and aesthetic result in breast reconstruction. Standard techniques with skin paddle inset in a horizontal or oblique fashion preferentially improve anterior projection (when inset at the mastectomy scar) or lower pole and infra-mammary fold (IMF) constriction (when inset into the IMF). Here, we describe a modification for inset of the LDMF that improves both anterior projection and lower pole/IMF constriction, while also allowing the latissimus muscle to fan out and provide complete implant coverage...
November 8, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29135679/characterization-of-the-human-pancreas-side-population-as-a-potential-reservoir-of-adult-stem-cells
#13
Petra Augstein, Thomas Loudovaris, Esther Bandala-Sanchez, Peter Heinke, Gaetano Naselli, Lily Lee, Wayne J Hawthorne, L Jorge Góñez, Alana M Neale, François Vaillant, Helen E Thomas, Thomas W Kay, Ilia Banakh, Leonard C Harrison
OBJECTIVES: The side population (SP) contains cells with stem cell/progenitor properties. Previously, we observed that the mouse pancreas SP expanded after pancreatic injury. We aimed to characterize the SP in human pancreas as a potential source of stem cells. METHODS: Human organ donor pancreata were fractionated into islets and exocrine tissue, enriched by tissue culture and dispersed into single cells. Cells were phenotyped by flow cytometry, and the SP was defined by efflux of fluorescent dye Hoechst 33342 visualized by ultraviolet excitation...
November 10, 2017: Pancreas
https://www.readbyqxmd.com/read/29134515/neuroprotective-potential-and-paracrine-activity-of-stromal-vs-culture-expanded-hmsc-derived-from-wharton-jelly-under-co-cultured-with-hippocampal-organotypic-slices
#14
Sylwia Dabrowska, Joanna Sypecka, Anna Jablonska, Lukasz Strojek, Miroslaw Wielgos, Krystyna Domanska-Janik, Anna Sarnowska
Regardless of enormous translational progress in stem cell clinical application, our knowledge about biological determinants of transplantation-related protection is still limited. In addition to adequate selection of the cell source well dedicated to a specific disease and optimal standardization of all other pre-transplant procedures, we have decided to focus more attention to the impact of culture time and environment itself on molecular properties and regenerative capacity of cell cultured in vitro. The aim of this investigation was to determine neuroprotection-linked cell phenotypic and functional changes that could spontaneously take place when freshly isolated Wharton's jelly mesenchymal stem cell (WJ-MSC) undergo standard selection, growth, and spontaneous differentiation throughout passaging in vitro...
November 13, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/29134127/the-characterization-of-human-oral-mucosal-fibroblasts-and-their-use-as-feeder-cells-in-cultivated-epithelial-sheets
#15
Kazunari Higa, Yoshiyuki Satake, Jun Shimazaki
Aim: To characterize human oral mucosa middle interstitial tissue fibroblasts (hOMFs) and their application in the cultivation of epithelial sheets. Methodology: hOMFs were cultured with methylcellulose to form cell clusters. hOMFs amplified in adhesive culture were analyzed by flow cytometry, and were found to differentiate into multiple cell types suitable for the cultivation of human corneal epithelial sheets. hOMFs were expanded from clusters to analyze CD56 and PDGFRα expression...
November 2017: Future Science OA
https://www.readbyqxmd.com/read/29133252/l-rhamnose-binding-lectins-rbls-in-nile-tilapia-oreochromis-niloticus-characterization-and-expression-profiling-in-mucosal-tissues
#16
Dongdong Zhang, Benjamin H Beck, Haitham Mohammed, Honggang Zhao, Wilawan Thongda, Zhi Ye, Qifan Zeng, Craig Shoemaker, S Adam Fuller, Eric Peatman
Rhamnose-binding lectins (RBLs) are crucial elements associated with innate immune responses to infections and have been characterized from a variety of teleost fishes. Given the importance of RBL in teleost fishes, we sought to study the diversity and expression profiles of RBLs in an important cultured fish, Nile tilapia (Oreochromis niloticus) following experimental infection with Streptococcus agalactiae, a major cause of streptococcosis in farmed tilapia. In this study, four predicted RBL genes were identified from Nile tilapia and were designated as OnRBL3a, OnRBL3b, OnRBL3c, and OnRBL3d...
November 10, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29131160/human-primary-liver-cancer-derived-organoid-cultures-for-disease-modeling-and-drug-screening
#17
Laura Broutier, Gianmarco Mastrogiovanni, Monique Ma Verstegen, Hayley E Francies, Lena Morrill Gavarró, Charles R Bradshaw, George E Allen, Robert Arnes-Benito, Olga Sidorova, Marcia P Gaspersz, Nikitas Georgakopoulos, Bon-Kyoung Koo, Sabine Dietmann, Susan E Davies, Raaj K Praseedom, Ruby Lieshout, Jan N M IJzermans, Stephen J Wigmore, Kourosh Saeb-Parsy, Mathew J Garnett, Luc Jw van der Laan, Meritxell Huch
Human liver cancer research currently lacks in vitro models that can faithfully recapitulate the pathophysiology of the original tumor. We recently described a novel, near-physiological organoid culture system, wherein primary human healthy liver cells form long-term expanding organoids that retain liver tissue function and genetic stability. Here we extend this culture system to the propagation of primary liver cancer (PLC) organoids from three of the most common PLC subtypes: hepatocellular carcinoma (HCC), cholangiocarcinoma (CC) and combined HCC/CC (CHC) tumors...
November 13, 2017: Nature Medicine
https://www.readbyqxmd.com/read/29128538/hyaluronan-size-alters-chondrogenesis-of-adipose-derived-stem-cells-via-the-cd44-erk-sox-9-pathway
#18
Shun-Cheng Wu, Chung-Hwan Chen, Jyun-Ya Wang, Yi-Shan Lin, Je-Ken Chang, Mei-Ling Ho
Hyaluronan (HA) is a natural linear polymer that is one of the main types of extracellular matrix during the early stage of chondrogenesis. We found that the chondrogenesis of adipose-derived stem cells (ADSCs) can be initiated and promoted by the application of HA to mimic the chondrogenic niche. The aim of this study is to investigate the optimal HA molecular weight (Mw) for chondrogenesis of ADSCs and the detailed mechanism. In this study, we investigated the relationships among HA Mw, CD44 clustering, and the extracellular signal-regulated kinase (ERK)/SOX-9 pathway during chondrogenesis of ADSCs...
November 8, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/29128515/injectable-network-biomaterials-via-molecular-or-colloidal-self-assembly
#19
Jugal Kishore Sahoo, Michael A VandenBerg, Matthew J Webber
Self-assembly is a powerful tool to create functional materials. A specific application for which self-assembled materials are ideally suited is in creating injectable biomaterials. Contrasting with traditional biomaterials that are implanted through surgical means, injecting biomaterials through the skin offers numerous advantages, expanding the scope and impact for biomaterials in medicine. In particular, self-assembled biomaterials prepared from molecular or colloidal interactions have been frequently explored...
November 8, 2017: Advanced Drug Delivery Reviews
https://www.readbyqxmd.com/read/29127350/memory-regulatory-t-cells-increase-only-in-inflammatory-phase-of-chronic-hepatitis-b-infection-and-related-to-galectin-9-tim-3-interaction
#20
Ching-Chih Hu, Wen-Juei Jeng, Yi-Cheng Chen, Jian-He Fang, Chien-Hao Huang, Wei Teng, Yi-Chung Hsieh, Yung-Chang Lin, Rong-Nan Chien, I-Shyan Sheen, Chun-Yen Lin
CD4(+)Foxp3(+) regulatory T cells (Tregs) are the main immune suppressors with subpopulation of inflamed-tissue related memory Tregs (mTregs) and non-related resting Treg (rTregs). Previously, Treg was proposed to be the cause of chronicity of hepatitis B virus (HBV) infection but with controversies. We then investigated the role of mTregs in distinct immune phases of chronic HBV infection, especially the non-inflammatory versus inflammatory phases. It was found mTregs but not rTregs increased only in the inflammatory phase and correlated with serum alanine aminotransferase (ALT) level...
November 10, 2017: Scientific Reports
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