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https://www.readbyqxmd.com/read/29793177/long-noncoding-rna-gas5-suppresses-triple-negative-breast-cancer-progression-through-inhibition-of-proliferation-and-invasion-by-competitively-binding-mir-196a-5p
#1
Shuqin Li, Jun Zhou, Zhaoxin Wang, Peishun Wang, Xitao Gao, Yan Wang
Triple-negative breast cancer (TNBC) is considered to be the most aggressive and lethal type of breast cancer. Many studies have suggested that the dysfunction of long noncoding RNAs (lncRNAs) is correlated with breast cancer metastasis and progression. Here, we show that levels of the lncRNA, growth arrest-specific transcript 5 (GAS5), are decreased in TNBC tissues, and this down-regulation of GAS5 is associated with an aggressive tumor phenotype in patients, affecting clinical stage, lymph node metastasis and overall survival...
May 21, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29793112/3d-printed-membrane-as-an-alternative-to-amniotic-membrane-for-ocular-surface-conjunctival-defect-reconstruction-an-in-vitro-in-vivo-study
#2
Shima Dehghani, Morteza Rasoulianboroujeni, Hamed Ghasemi, Saeed Heidari Keshel, Zohreh Nozarian, Mohammad Naser Hashemian, Mehran Zarei-Ghanavati, Golshan Latifi, Reza Ghaffari, Zhanfeng Cui, Hua Ye, Lobat Tayebi
BACKGROUND: The aim of this study was to evaluate the surgical handling and clinical applicability of a specific 3D-printed membrane design fabricated using a gelatin, elastin and sodium hyaluronate blend for conjunctival reconstruction and compare it with amniotic membrane (AM), which is normally used in such surgeries. METHODS: 3D printing technique was employed to fabricate the membrane based on gradient design. Prior to printing, rheometry was employed to optimize the ink composition...
May 11, 2018: Biomaterials
https://www.readbyqxmd.com/read/29793089/gold-and-gold-silver-alloy-nanoparticles-enhance-the-myogenic-differentiation-of-myoblasts-through-p38-mapk-signaling-pathway-and-promote-in-vivo-skeletal-muscle-regeneration
#3
Juan Ge, Kai Liu, Wen Niu, Mi Chen, Min Wang, Yumeng Xue, Chuanbo Gao, Peter X Ma, Bo Lei
Under the severe trauma condition, the skeletal muscles regeneration process is inhibited by forming fibrous scar tissues. Understanding the interaction between bioactive nanomaterials and myoblasts perhaps has important effect on the enhanced skeletal muscle tissue regeneration. Herein, we investigate the effect of monodispersed gold and gold-silver nanoparticles (AuNPs and Au-AgNPs) on the proliferation, myogenic differentiation and associated molecular mechanism of myoblasts (C2C12), as well as the in vivo skeletal muscle tissue regeneration...
May 18, 2018: Biomaterials
https://www.readbyqxmd.com/read/29793075/newcastle-disease-virus-induces-g-0-g-1-cell-cycle-arrest-in-asynchronously-growing-cells
#4
Yan Wang, Rui Wang, Yanrong Li, Yingjie Sun, Cuiping Song, Yuan Zhan, Lei Tan, Ying Liao, ChunChun Meng, Xusheng Qiu, Chan Ding
The cell cycle, as a basic cellular process, is conservatively regulated. Consequently, subversion of the host cell replication cycle is a common strategy employed by many viruses to create a cellular environment favorable for viral replication. Newcastle disease virus (NDV) causes disease in poultry and is also an effective oncolytic agent. However, the effects of NDV infection on cell cycle progression are unknown. In this study, we showed that NDV replication in asynchronized cells resulted in the accumulation of infected cells in the G0 /G1 phase of the cell cycle, which benefitted the proliferation of NDV...
May 21, 2018: Virology
https://www.readbyqxmd.com/read/29793074/cross-linked-electrospun-cartilage-acellular-matrix-poly-caprolactone-co-lactide-co-glycolide-nanofiber-as-an-antiadhesive-barrier
#5
Jin Woo Lee, Joon Yeong Park, Seung Hun Park, Min Ju Kim, Bo Ram Song, Hee-Woong Yun, Tae Woong Kang, Hak Soo Choi, Young Jick Kim, Byoung Hyun Min, Moon Suk Kim
In this work, we chose cartilage acellular matrix (CAM) as a promising antiadhesive material because CAM effectively inhibits the formation of blood vessels, and we used electrospinning to prepare antiadhesive barriers. Additionally, we synthesized N-hydroxysuccinimide (NHS)-poly(caprolactone-co-lactide-co-glycolide)-NHS (MP) copolymers (to tune degradation) as a cross-linking agent for CAM. This is the first report on the development of electrospun cross-linked (Cx) CAM/MP (CA/P) nanofiber (NF) (Cx-CA/P-NF) with a tunable degradation period as an antiadhesive barrier...
May 21, 2018: Acta Biomaterialia
https://www.readbyqxmd.com/read/29792965/characterization-sulfated-modification-and-bioactivity-of-a-novel-polysaccharide-from-millettia-dielsiana
#6
Zhonghua Wang, Tongqiang Cai, Xipu He
Millettia dielsiana is a traditional herb medicine to treat rheumatic arthritis and gynecological diseases. In this study, a novel polysaccharide (MDP1) with a molecular weight of 139.54 kDa was isolated from Millettia dielsiana by DEAE-52 cellulose chromatography. Its sulfated derivative (S-MDP1) was prepared by the chlorosulfonic acid-pyridine method. Structural analysis indicated that MDP1 was a pectic polysaccharide and did not exhibit a triple helical conformation. In vitro, MDP1 and S-MDP1 had protective effect on H2 O2 -induced PC12 cells death...
May 21, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29792901/identification-and-functional-characterization-including-cytokine-production-modulation-of-the-novel-chicken-interleukin-11
#7
Anh Duc Truong, Yeojin Hong, Deivendran Rengaraj, Janggeun Lee, Kyungbaek Lee, Yeong Ho Hong
Interleukin (IL)-11 plays an important role in the immune system. However, IL-11 has not yet been characterized in avian species, including chickens. This study is the first to clone and functionally characterize chicken IL-11 (chIL-11). Multiple alignments and phylogenetic tree comparisons of chIL-11 with IL-11 proteins from other species revealed high levels of conservation and a close relationship between chicken and Japanese quail IL-11. Our results demonstrate that chIL-11 was a functional ligand of IL-11RA and IL-6ST in chicken HD11 and OU2 cell lines, as well as activated and regulated JAK-STAT, NF-κB, PI3K/AKT, and MAPK signaling pathways in chicken cell lines...
May 21, 2018: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/29792888/oral-vitamin-a-coupled-valsartan-nanomedicine-high-hepatic-stellate-cell-receptors-accessibility-and-prolonged-enterohepatic-residence
#8
Nesrine S El-Mezayen, Wessam F El-Hadidy, Wessam M El-Refaie, Thanaa I Shalaby, Mahmoud M Khattab, Aiman S El-Khatib
So far, liver fibrosis still has no clinically-approved treatment. The loss of stored vitamin-A (VA ) in hepatic stellate cells (HSCs), the main regulators to hepatic fibrosis, can be applied as a mechanism for their targeting. Valsartan is a good candidate for this approach; it is a marketed oral-therapy with inverse- and partial-agonistic activity to the over-expressed angiotensin-II type1 receptor (AT1R) and depleted nuclear peroxisome proliferator-activated receptor-gamma (PPAR-γ), respectively, in activated HSCs...
May 21, 2018: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/29792866/cardiac-extracellular-matrix-hydrogel-together-with-or-without-inducer-cocktail-improves-human-adipose-tissue-derived-stem-cells-differentiation-into-cardiomyocyte-like-cells
#9
Masoumeh Baghalishahi, Seyed Hasan Efthekhar-Vaghefi, Abbas Piryaei, S N Nematolahi-Mahani, Hamid Reza Mollaei, Yousef Sadeghi
Studies have demonstrated that differentiation of stem cells into cardiomyocytes is a complex phenomenon that requires sufficient inducing factors at various time points. Cardiac extracellular matrix (cECM) could provide tissue specific microenvironment and act as an inductive template for efficient cell differentiation. The aim of this study was to investigate the effect of cECM on differentiation of human adipose tissue-derived stem cells (hADSCs) into cardiomyocytes using cECM hydrogel in combination with a cardiac inductive cocktail...
May 21, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29792859/long-non-coding-rna-miat-is-estrogen-responsive-and-promotes-estrogen-induced-proliferation-in-er-positive-breast-cancer-cells
#10
Yuehua Li, Baohong Jiang, Xiaoping Wu, Qin Huang, Wenqi Chen, Hongbo Zhu, Xiaofei Qu, Liming Xie, Xin Ma, Guo Huang
Estrogen drives the development and progression of estrogen receptor (ER)-positive breast cancer. However, the detailed mechanism underlying ER-driven carcinogenesis remains unclear despite extensive studies. Previously reports indicated higher expression of long non-coding RNA (lncRNA) myocardial infarction associated transcript (MIAT) in ER-positive breast cancer tissues than in ER-negative tissues. However, the functional relevance of MIAT in ER-positive breast cancer tumorigenesis was poorly understood...
May 21, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29792855/the-versatile-hippo-pathway-in-oral-maxillofacial-development-and-bone-remodeling
#11
REVIEW
Lin Xiang, Hui Yu, Xinyuan Zhang, Bin Wang, Ying Yuan, Qin Zhang, Rui Ye, Ping Gong, Yingying Wu
The Hipposignaling pathway is implicated in key aspects of cell proliferation, control of organ size, stem cell functions and tumor suppression. Its functions are primarily mediated either through direct effects on transcription factors to influence target gene expression or through crosstalk with other signaling pathways that regulate multiple physiological activities. Studies are revealing Hippo pathway involvement in diverse functions including renewal of intestinal epithelium, promotion of myocardial cell proliferation, cancer suppression, etc...
May 21, 2018: Developmental Biology
https://www.readbyqxmd.com/read/29792854/bergmann-glial-sonic-hedgehog-signaling-activity-is-required-for-proper-cerebellar-cortical-expansion-and-architecture
#12
Frances Y Cheng, Jonathan T Fleming, Chin Chiang
Neuronal-glial relationships play a critical role in the maintenance of central nervous system architecture and neuronal specification. A deeper understanding of these relationships can elucidate cellular cross-talk capable of sustaining proper development of neural tissues. In the cerebellum, cerebellar granule neuron precursors (CGNPs) proliferate in response to Purkinje neuron-derived Sonic hedgehog (Shh) before ultimately exiting the cell cycle and migrating radially along Bergmann glial fibers. However, the function of Bergmann glia in CGNP proliferation remains not well defined...
May 21, 2018: Developmental Biology
https://www.readbyqxmd.com/read/29792724/a-systematic-understanding-of-signaling-by-erbb2-in-cancer-using-phosphoproteomics
#13
C Sidhanth, P Manasa, S Krishnapriya, S Sneha, S Bindhya, R P Nagare, M Garg, T S Ganesan
ErbB2 is an important receptor tyrosine kinase and a member of the ErbB family. Although it does not have a specific ligand, it transmits signals downstream by heterodimerization with other receptors in the family. It plays a major role in a variety of cellular responses like proliferation, differentiation, and adhesion. ErbB2 is amplified at the DNA level in breast cancer (20%-30%) and gastric cancer (10%-20%), and trastuzumab is effective as a therapeutic antibody. This review is a critical analysis of the currently published data on the signaling pathways of ErbB2 and the interacting proteins...
May 24, 2018: Biochemistry and Cell Biology, Biochimie et Biologie Cellulaire
https://www.readbyqxmd.com/read/29792529/mir-155-accelerates-proliferation-of-mouse-hepatocytes-during-liver-regeneration-by-directly-targeting-socs1
#14
Xia Lin, Li Chen, Haiyan Li, Yu Liu, Yanhong Guan, Xiaoyan Li, Zhenchang Jia, Xiaolin Lin, Junshuang Jia, Yan Sun, Dong Xiao
Liver regeneration after 2/3 partial hepatectomy (PH) is a clinically significant repair process to restore proper liver architecture. Although microRNA-155 (miR-155) has been found to serve as a crucial microRNA (miRNA) regulator controlling liver cells functions and proliferation, little is known about its specific role in the regenerating liver. Using a mouse model with miR-155 overexpression or miR-155 knockout, we investigated the molecular mechanisms of miR-155 in liver regeneration. A marked induction of miR-155 was evident in C57BL/6 mice after PH...
May 24, 2018: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/29792463/terrorist-teams-as-loosely-coupled-systems
#15
Matthias Spitzmuller, Guihyun Park
Acts of terrorism can be harrowing and cause extensive damage, yet they occur far too frequently. How do terrorist groups organize and coordinate their attacks? What makes those groups simultaneously cohesive and flexible in a hostile environment? Different academic disciplines have contributed to a better understanding of the proliferation of terrorist acts in recent years. With very few exceptions, however, extant psychological research on terrorism has almost exclusively focused on the individual terrorist...
May 2018: American Psychologist
https://www.readbyqxmd.com/read/29792387/resveratrol-prevents-high-calorie-diet-induced-learning-and-memory-dysfunction-in-juvenile-c57bl-6j-mice
#16
Bao-Lei Xu, Hui Zhang, Li-Na Ma, Wen Dong, Zhi-Wei Zhao, Jing-Shuang Zhang, Yu-Lan Wang, Xu Zhang, Rong Wang
OBJECTIVE: Because resveratrol (RSV) has been shown to improve learning and memory, so we investigated the potential benefit of RSV on learning and memory deficits in juvenile mice fed with a HC diet and explored the molecular mechanisms underlying this process. METHODS: Six-week-old C57BL/6J mice were divided into three different diet groups: control, HC diet, and HC + RSV diet. Serum insulin and insulin-like growth factor 1 (IGF-1) levels were measured using enzyme-linked immunosorbent assays...
May 24, 2018: Neurological Research
https://www.readbyqxmd.com/read/29792385/an-organotypic-reconstructed-human-urethra-to-study-c-trachomatis-infection
#17
Bart Versteeg, Lenie J van den Broek, Sylvia Bruisten, Margriet Mullender, Henry J C de Vries, Susan Gibbs
Organotypic models to investigate host-microbiome interactions are still a challenge for the field of tissue engineering. This is particularly the case for organs such as the urethra. Several cell line, animal and tissue models are available to study C. trachomatis infections, but none fully reflect natural infection in native human tissue. Therefore, we developed an organotypic reconstructed human urethral model (RhU) to study invasive and non-invasive strains of C. trachomatis. Primary urethra cells were used to reconstruct epithelium on a fibroblast populated collagen-fibrin hydrogel, yielding a RhU...
May 24, 2018: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/29792376/somatic-ace-regulates-self-renewal-of-mouse-spermatogonial-stem-cells-via-the-mapk-signaling-pathway
#18
Tingting Gao, Xin Zhao, Chenchen Liu, Binbin Shao, Xi Zhang, Kai Li, Jinyang Cai, Su Wang, Xiaoyan Huang
Spermatogonial stem cell (SSC) self-renewal is an indispensable part of spermatogenesis. Angiotensin I-converting enzyme (ACE) is a zinc dipeptidyl carboxypeptidase that plays a critical role in regulation of the renin-angiotensin system. Here, we used RT-PCR and Western blot analysis to confirm that somatic ACE (sACE) but not testicular ACE (tACE) is highly expressed in mouse testis before postpartum day 7 and in cultured SSCs. Our results revealed that sACE is located on the membrane of SSCs. Treating cultured SSCs with the ACE competitive inhibitor captopril was found to inhibit sACE activity, and significantly reduced the proliferation rate of SSCs...
May 24, 2018: Stem Cells and Development
https://www.readbyqxmd.com/read/29792338/molecular-mechanism-for-the-influence-of-gender-dimorphism-on-alcoholic-liver-injury-in-mice
#19
S-Q Li, P Wang, D-M Wang, H-J Lu, R-F Li, L-X Duan, S Zhu, S-L Wang, Y-Y Zhang, Y-L Wang
It is known that women develop alcoholic liver injury more rapidly and have a lower alcohol toxic threshold than men. However, the detailed molecular mechanisms remain unclear. The precise mechanism responsible for the sex difference needs to be determined. Female and male mice were given ethanol by intragastric infusion every day for 4 weeks. The pathological changes were detected by hematoxylin-eosin, Sirius red, oil red O, periodic acid-Schiff, and Hochest33258 staining in the liver of female and male mice...
January 1, 2018: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/29792290/the-use-of-mobile-health-applications-to-improve-patient-experience-cross-sectional-study-in-chinese-public-hospitals
#20
Chuntao Lu, Yinhuan Hu, Jinzhu Xie, Qiang Fu, Isabella Leigh, Samuel Governor, Guanping Wang
BACKGROUND: The proliferation of mobile health apps has greatly changed the way society accesses the health care industry. However, despite the widespread use of mobile health apps by patients in China, there has been little research that evaluates the effect of mobile health apps on patient experience during hospital visits. OBJECTIVE: The purpose of our study was to examine whether the use of mobile health apps improves patient experience and to find out the difference in patient experience between users and nonusers and the characteristics associated with the users of these apps...
May 23, 2018: JMIR MHealth and UHealth
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