keyword
MENU ▼
Read by QxMD icon Read
search

Modelling somatic growth

keyword
https://www.readbyqxmd.com/read/28333937/variability-in-age-and-size-at-maturation-reproductive-longevity-and-long-term-growth-dynamics-for-kemp-s-ridley-sea-turtles-in-the-gulf-of-mexico
#1
Larisa Avens, Lisa R Goshe, Lewis Coggins, Donna J Shaver, Ben Higgins, Andre M Landry, Rhonda Bailey
Effective management of protected sea turtle populations requires knowledge not only of mean values for demographic and life-history parameters, but also temporal and spatial trends, variability, and underlying causes. For endangered Kemp's ridley sea turtles (Lepidochelys kempii), the need for baseline information of this type has been emphasized during attempts to understand causes underlying the recent truncation in the recovery trajectory for nesting females. To provide insight into variability in age and size at sexual maturation (ASM and SSM) and long-term growth patterns likely to influence population trends, we conducted skeletochronological analysis of humerus bones from 333 Kemp's ridleys stranded throughout the Gulf of Mexico (GOM) from 1993 to 2010...
2017: PloS One
https://www.readbyqxmd.com/read/28320919/pan-cancer-analysis-distinguishes-transcriptional-changes-of-aneuploidy-from-proliferation
#2
Christopher Buccitelli, Lorena Salgueiro, Konstantina Rowald, Rocio Sotillo, Balca R Mardin, Jan O Korbel
Patterns of gene expression in tumors can arise as a consequence of or result in genomic instability, characterized by the accumulation of somatic copy number alterations (SCNAs) and point mutations (PMs). Expression signatures have been widely used as markers for genomic instability, and both SCNAs and PMs could be thought to associate with distinct signatures given their different formation mechanisms. Here we test this notion by systematically investigating SCNA, PM, and transcriptome data from 2660 cancer patients representing 11 tumor types...
March 20, 2017: Genome Research
https://www.readbyqxmd.com/read/28317937/identification-of-cancer-associated-missense-mutations-in-hace1-that-impair-cell-growth-control-and-rac1-ubiquitylation
#3
Emilie Andrio, Romain Lotte, Daniel Hamaoui, Jacqueline Cherfils, Anne Doye, Mads Daugaard, Poul H Sorensen, Frédéric Bost, Raymond Ruimy, Amel Mettouchi, Emmanuel Lemichez
The E3 ubiquitin ligase HACE1 is a potent tumor suppressor that controls cell proliferation and ubiquitylates the small GTPase Rac1 to target it to proteasomal degradation. Whether and how the activity of HACE1 is regulated by the N-terminal ankyrin (ANK) and the middle (MID) domains is ill defined. Here, we identified in the version 64 of the Catalogue of Somatic Mutations in Cancer (COSMIC) 13 missense mutations of hace1 located outside the HECT domain, and found that all lead to defective control of cell proliferation...
March 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28315838/germline-proliferation-is-regulated-by-somatic-endocytic-genes-via-jnk-and-bmp-signaling-in-drosophila
#4
Yaning Tang, Qing Geng, Di Chen, Shaowei Zhao, Xian Liu, Zhaohui Wang
Signals derived from the microenvironment contribute greatly to tumorigenesis. The underlying mechanism requires thorough investigation. Here, we use Drosophila testis as a model system to address this question, taking the advantage of the ease to distinguish germline and somatic cells and to track the cell numbers. In an EMS mutagenesis screen, we identified Rab5, a key factor in endocytosis, for its non-autonomous role in germline proliferation. The disruption of Rab5 in somatic cyst cells, which escort the development of germline lineage, induced the over-proliferation of under-differentiated but genetically wild-type germ cells...
March 17, 2017: Genetics
https://www.readbyqxmd.com/read/28285640/first-and-second-trimester-gestational-weight-gains-are-most-strongly-associated-with-cord-blood-levels-of-hormones-at-delivery-important-for-glycemic-control-and-somatic-growth
#5
Sheryl L Rifas-Shiman, Abby Fleisch, Marie-France Hivert, Christos Mantzoros, Matthew W Gillman, Emily Oken
BACKGROUND: Excessive gestational weight gain (GWG) during pregnancy is associated with adverse outcomes for mothers and offspring. Early, mid, and late pregnancy GWGs have different associations with fetal growth and later life adiposity, but associations with cord blood hormones, which might predict later health, are not well studied. METHODS: In 978 pregnant women from the pre-birth Project Viva cohort, we calculated trimester-specific GWG using clinically recorded prenatal weights...
April 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/28273182/protocol-for-efficient-regulation-of-in-vitro-morphogenesis-in-einkorn-triticum-monococcum-l-a-recalcitrant-diploid-wheat-species
#6
Dmitry Miroshnichenko, Inna Chaban, Mariya Chernobrovkina, Sergey Dolgov
Einkorn (Triticum monococcum L.) is A-genome diploid wheat that has a potential to become a useful model for understanding the biology and genomics in Triticeae. Unfortunately, the application of modern technologies such as genetic engineering, RNAi-based gene silencing and genome editing is not available for einkorn as there is no efficient in vitro tissue culture and plant regeneration system. In the present study an efficient and simple protocol for plant regeneration via direct or indirect somatic embryogenesis and organogenesis has been developed...
2017: PloS One
https://www.readbyqxmd.com/read/28253852/signature-tagged-mutagenesis-screening-revealed-a-novel-smooth-to-rough-transition-determinant-of-salmonella-enterica-serovar-enteritidis
#7
Yang Jiao, Rongxian Guo, Peipei Tang, Xilong Kang, Junlei Yin, Kaiyue Wu, Shizhong Geng, Qiuchun Li, Jun Sun, Xiulong Xu, Xiaohui Zhou, Junji Gan, Xinan Jiao, Xiufan Liu, Zhiming Pan
BACKGROUND: Salmonella enterica serovar Enteritidis (S. Enteritidis) has emerged as one of the most important food-borne pathogens for humans. Lipopolysaccharide (LPS), as a component of the outer membrane, is responsible for the virulence and smooth-to-rough transition in S. Enteritidis. In this study, we screened S. Enteritidis signature-tagged transposon mutant library using monoclonal antibody against somatic O9 antigen (O9 MAb) and O9 factor rabbit antiserum to identify novel genes that are involved in smooth-to-rough transition...
March 3, 2017: BMC Microbiology
https://www.readbyqxmd.com/read/28237837/a-novel-dna-vaccine-platform-enhances-neo-antigen-like-t-cell-responses-against-wt1-to-break-tolerance-and-induce-anti-tumor-immunity
#8
Jewell N Walters, Bernadette Ferraro, Elizabeth K Duperret, Kimberly A Kraynyak, Jaemi Chu, Ashley Saint-Fleur, Jian Yan, Hy Levitsky, Amir S Khan, Niranjan Y Sardesai, David B Weiner
Tumor-associated antigens have emerged as important immunotherapeutic targets in the fight against cancer. Germline tumor antigens, such as WT1, Wilms' tumor gene 1, are overexpressed in many human malignancies but have low expression in somatic tissues. Recent vaccination approaches to target WT1 have been hampered by poor in vivo immune potency, likely due to the conserved self-antigen nature of WT1. In this study, we use a novel synthetic micro-consensus SynCon DNA vaccine approach with the goal of breaking tolerance and increasing vaccine immune potency...
February 22, 2017: Molecular Therapy: the Journal of the American Society of Gene Therapy
https://www.readbyqxmd.com/read/28214862/differential-clonal-expansion-in-an-invading-cell-population-clonal-advantage-or-dumb-luck
#9
Donald F Newgreen, Dongcheng Zhang, Bevan L Cheeseman, Benjamin J Binder, Kerry A Landman
In neoplastic cell growth, clones and subclones are variable both in size and mutational spectrum. The largest of these clones are believed to represent those cells with mutations that make them the most "fit," in a Darwinian sense, for expansion in their microenvironment. Thus, the degree of quantitative clonal expansion is regarded as being determined by innate qualitative differences between the cells that originate each clone. Here, using a combination of mathematical modelling and clonal labelling experiments applied to the developmental model system of the forming enteric nervous system, we describe how cells which are qualitatively identical may consistently produce clones of dramatically different sizes: most clones are very small while a few clones we term "superstars" contribute most of the cells to the final population...
2017: Cells, Tissues, Organs
https://www.readbyqxmd.com/read/28202529/aberrant-syk-kinase-signaling-is-essential-for-tumorigenesis-induced-by-tsc2-inactivation
#10
Ye Cui, Wendy K Steagall, Anthony M Lamattina, Gustavo Pacheco-Rodriguez, Mario Stylianou, Pranav Kidambi, Benjamin Stump, Fernanda Golzarri, Ivan O Rosas, Carmen Priolo, Elizabeth P Henske, Joel Moss, Souheil El-Chemaly
Somatic or germline mutations in the tuberous sclerosis complex (TSC) tumor suppressor genes are associated closely with the pathogenesis of lymphangioleiomyomatosis, a rare and progressive neoplastic disease that predominantly affects women in their childbearing years. Serum levels of the lymphangiogenic growth factor VEGF-D are elevated significantly in lymphangioleiomyomatosis. However, there are gaps in knowledge regarding VEGF-D dysregulation and its cellular origin in lymphangioleiomyomatosis. Here, we show that increased expression and activation of the tyrosine kinase Syk in TSC2-deficient cells and pulmonary nodules from lymphangioleiomyomatosis patients contributes to tumor growth...
March 15, 2017: Cancer Research
https://www.readbyqxmd.com/read/28196408/somatic-mutations-in-murine-models-of-leukemia-and-lymphoma-disease-specificity-and-clinical-relevance
#11
Liat Goldberg, Sheryl M Gough, Fan Lee, Christine Dang, Robert L Walker, Yeulin J Zhu, Sven Bilke, Marbin Pineda, Masahiro Onozawa, Yang Jo Chung, Paul S Meltzer, Peter D Aplan
Malignant transformation is a multistep process that is dictated by acquisition of multiple genomic aberrations that provide growth and survival advantage. During the post genomic era, high throughput genomic sequencing has advanced exponentially, leading to identification of countless cancer associated mutations with potential for targeted therapy. Mouse models of cancer serve as excellent tools to examine the functionality of gene mutations and their contribution to the malignant process. However, it remains unclear whether the genetic events that occur during transformation are similar in mice and humans...
February 14, 2017: Genes, Chromosomes & Cancer
https://www.readbyqxmd.com/read/28195550/novel-germline-mutation-leu512met-in-the-thyrotropin-receptor-gene-tshr-leading-to-sporadic-non-autoimmune-hyperthyroidism
#12
Stephanie A Roberts, Jennifer E Moon, Andrew Dauber, Jessica R Smith
BACKGROUND: Primary nonautoimmune hyperthyroidism is a rare cause of neonatal hyperthyroidism. This results from an activating mutation in the thyrotropin-receptor (TSHR). It can be inherited in an autosomal dominant manner or occur sporadically as a de novo mutation. Affected individuals display a wide phenotype from severe neonatal to mild subclinical hyperthyroidism. We describe a 6-month-old boy with a de novo mutation in the TSHR gene who presented with accelerated growth, enlarging head circumference, tremor and thyrotoxicosis...
March 1, 2017: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/28193767/the-role-of-nuclear-receptor-binding-set-domain-family-histone-lysine-methyltransferases-in-cancer
#13
Richard L Bennett, Alok Swaroop, Catalina Troche, Jonathan D Licht
The nuclear receptor-binding SET Domain (NSD) family of histone H3 lysine 36 methyltransferases is comprised of NSD1, NSD2 (MMSET/WHSC1), and NSD3 (WHSC1L1). These enzymes recognize and catalyze methylation of histone lysine marks to regulate chromatin integrity and gene expression. The growing number of reports demonstrating that alterations or translocations of these genes fundamentally affect cell growth and differentiation leading to developmental defects illustrates the importance of this family. In addition, overexpression, gain of function somatic mutations, and translocations of NSDs are associated with human cancer and can trigger cellular transformation in model systems...
February 13, 2017: Cold Spring Harbor Perspectives in Medicine
https://www.readbyqxmd.com/read/28176142/hmgb1-tlr4-axis-plays-a-regulatory-role-in-the-pathogenesis-of-mesial-temporal-lobe-epilepsy-in-immature-rat-model-and-children-via-the-p38mapk-signaling-pathway
#14
Weihong Yang, Jing Li, Yun Shang, Li Zhao, Mingying Wang, Jipeng Shi, Shujun Li
The HMGB1-TLR4 axis is activated in adult mouse models of acute and chronic seizure. Nevertheless, whether HMGB1 was involved in the pathogenesis of mesial temporal lobe epilepsy (MTLE) remains unknown. In this study, we first measured the dynamic expression patterns of HMGB1 and TLR4 in the hippocampi of a rat model and in children with MTLE, as well as the levels of TNF-α and IL-1β. In addition, HMGB1 was added to mimic the process of inflammatory response in neurons. Neuronal somatic size and dendritic length were measured by immunohistochemistry and digital imaging...
February 7, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/28161602/characterizing-mandibular-growth-using-three-dimensional-imaging-techniques-and-anatomic-landmarks
#15
Michael P Kelly, Houri K Vorperian, Yuan Wang, Katelyn K Tillman, Helen M Werner, Moo K Chung, Lindell R Gentry
OBJECTIVE: To provide quantitative data on the multi-planar growth of the mandible, this study derived accurate linear and angular mandible measurements using landmarks on three dimensional (3D) mandible models. This novel method was used to quantify 3D mandibular growth and characterize the emergence of sexual dimorphism. DESIGN: Cross-sectional and longitudinal imaging data were obtained from a retrospective computed tomography (CT) database for 51 typically developing individuals between the ages of one and nineteen years...
January 23, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28111236/prevalence-of-prediabetes-risk-in-offspring-born-to-mothers-with-hyperandrogenism
#16
Shen Tian, Xian-Hua Lin, Yi-Meng Xiong, Miao-E Liu, Tian-Tian Yu, Min Lv, Wei Zhao, Gu-Feng Xu, Guo-Lian Ding, Chen-Ming Xu, Min Jin, Chun Feng, Yan-Ting Wu, Ya-Jing Tan, Qian Gao, Jian Zhang, Cheng Li, Jun Ren, Lu-Yang Jin, Bin Chen, Hong Zhu, Xue-Ying Zhang, Song-Chang Chen, Xin-Mei Liu, Ye Liu, Jun-Yu Zhang, Li Wang, Ping Zhang, Xiao-Jun Chen, Li Jin, Xi Chen, Yi-Cong Meng, Dan-Dan Wu, Hui Lin, Qian Yang, Cheng-Liang Zhou, Xin-Zhu Li, Yi-Yu Wang, Yu-Qian Xiang, Zhi-Wei Liu, Ling Gao, Lu-Ting Chen, Hong-Jie Pan, Rong Li, Fang-Hong Zhang, Lan-Feng Xing, Yi-Min Zhu, Christian Klausen, Peter C K Leung, Ju-Xue Li, Fei Sun, Jian-Zhong Sheng, He-Feng Huang
BACKGROUND: Excessive androgen exposure during pregnancy has been suggested to induce diabetic phenotypes in offspring in animal models. The aim of this study was to investigate whether pregestational maternal hyperandrogenism in human influenced the glucose metabolism in offspring via epigenetic memory from mother's oocyte to child's somatic cells. METHODS: Of 1782 reproductive-aged women detected pregestational serum androgen, 1406 were pregnant between 2005 and 2010...
February 2017: EBioMedicine
https://www.readbyqxmd.com/read/28108485/tgf-%C3%AE-family-signaling-in-embryonic-and-somatic-stem-cell-renewal-and-differentiation
#17
Alan C Mullen, Jeffrey L Wrana
Soon after the discovery of transforming growth factor-β (TGF-β), seminal work in vertebrate and invertebrate models revealed the TGF-β family to be central regulators of tissue morphogenesis. Members of the TGF-β family direct some of the earliest cell-fate decisions in animal development, coordinate complex organogenesis, and contribute to tissue homeostasis in the adult. Here, we focus on the role of the TGF-β family in mammalian stem-cell biology and discuss its wide and varied activities both in the regulation of pluripotency and in cell-fate commitment...
January 20, 2017: Cold Spring Harbor Perspectives in Biology
https://www.readbyqxmd.com/read/28087716/the-piggybac-transposon-derived-genes-tpb1-and-tpb6-mediate-essential-transposon-like-excision-during-the-developmental-rearrangement-of-key-genes-in-tetrahymena-thermophila
#18
Chao-Yin Cheng, Janet M Young, Chih-Yi Gabriela Lin, Ju-Lan Chao, Harmit S Malik, Meng-Chao Yao
Ciliated protozoans perform extreme forms of programmed somatic DNA rearrangement during development. The model ciliate Tetrahymena thermophila removes 34% of its germline micronuclear genome from somatic macronuclei by excising thousands of internal eliminated sequences (IESs), a process that shares features with transposon excision. Indeed, piggyBac transposon-derived genes are necessary for genome-wide IES excision in both Tetrahymena (TPB2 [Tetrahymena piggyBac-like 2] and LIA5) and Paramecium tetraurelia (PiggyMac)...
December 15, 2016: Genes & Development
https://www.readbyqxmd.com/read/28074003/dna-polymerase-beta-germline-variant-confers-cellular-response-to-cisplatin-therapy
#19
Antonia A Nemec, Laura Abriola, Jane S Merkel, Elisa de Stanchina, Michelle DeVeaux, Daniel Zelterman, Peter M Glazer, Joann B Sweasy
Resistance to cancer chemotherapies leads to deadly consequences, yet current research focuses only on the roles of somatically acquired mutations in this resistance. The mutational status of the germline is also likely to play a role in the way cells respond to chemotherapy. The carrier status for the POLB rs3136797 germline mutation encoding P242R DNA polymerase beta (Pol β) is associated with poor prognosis for lung cancer, specifically in response to treatment with cisplatin. Here, it is revealed that the P242R mutation is sufficient to promote resistance to cisplatin in human cells and in mouse xenografts...
March 2017: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/28070867/analytical-modeling-for-computing-lead-stress-in-a-novel-epicardial-micropacemaker
#20
Li Zhou, Yaniv Bar-Cohen, Raymond A Peck, Giorgio V Chirikian, Brett Harwin, Ramen H Chmait, Jay D Pruetz, Michael J Silka, Gerald E Loeb
Implantation and maintenance of a permanent cardiac pacing system in children remains challenging due to small patient size, congenital heart defects and somatic growth. We are developing a novel epicardial micropacemaker for children that can be implanted on the epicardium within the pericardial space via a minimally-invasive technique. The key design configurations include a novel open-coiled lead in which living tissue replaces the usual polymeric support for the coiled conductor. To better understand and be able to predict the behavior of the implanted lead, we performed a radiographic image-based modeling study on a chronic animal test...
March 2017: Cardiovascular Engineering and Technology
keyword
keyword
15579
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"