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https://www.readbyqxmd.com/read/29041002/astragaloside-iv-induced-mir-134-expression-reduces-emt-and-increases-chemotherapeutic-sensitivity-by-suppressing-creb1-signaling-in-colorectal-cancer-cell-line-sw-480
#1
Qi Ye, Li Su, Dagui Chen, Wenyi Zheng, Ye Liu
BACKGROUND: Colorectal cancer (CRC) is one of the leading causes of cancer-related deaths worldwide. Although chemotherapy is the primary means in colorectal cancer treatment, it is burdenerd by adverse drug effects. Drug-resistance is one of the most important challenges for chemotherapy and epithelial-mesenchymal transition (EMT) plays critical role in the development of drug resistance. AIMS: The aim of this study was to investigate the mechanisms underlying the effect of astragaloside IV (AS-IV) on miR-134 expression, EMT and chemotherapeutic sensitivity in CRC...
October 17, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29040876/species-specific-control-of-hepatocyte-growth-factor-expression-and-production-in-adipocytes-in-a-differentiation-dependent-manner
#2
D Yamaji, M M Soliman, A Kamikawa, T Ito, M M Ahmed, Y Okamatsu-Ogura, M Saito, K Kimura
Hepatocyte growth factor (HGF) is a mesenchymal cell-derived factor that regulates cell growth, cell motility, and morphogenesis. Since there are conflicting reports on HGF-producing cells, we herein examined HGF activity in conditioned medium (CM) of bovine and mouse preadipocytes before and after adipogenic differentiation. CM of bovine adipocytes and mouse preadipocytes induced the morphogenesis of mammary epithelial cells that was inhibited by an NK4 HGF antagonist, whereas CM of bovine preadipocytes and mouse adipocytes did not...
September 15, 2017: Domestic Animal Endocrinology
https://www.readbyqxmd.com/read/29040806/bacterial-derived-carbohydrates-bind-cyr1-and-trigger-hyphal-growth-in-candida-albicans
#3
Jason Burch, Siavash Mashayekh, Dennis D Wykoff, Catherine Leimkuhler Grimes
The dimorphic yeast Candida albicans is the most common pathologic fungus found in humans. While this species is normally commensal, a morphological switch from budding yeast to filamentous hyphae allows the fungi to invade epithelial cells and cause infections. The phenotypic change is controlled by the adenylyl cyclase, Cyr1. Interestingly, this protein contains a leucine-rich repeat (LRR) domain, which is commonly found in innate immune receptors from plants and animals. A functional and pure LRR domain was obtained in high yields from E...
October 17, 2017: ACS Infectious Diseases
https://www.readbyqxmd.com/read/29040564/n-cadherin-identifies-human-endometrial-epithelial-progenitor-cells-by-in-vitro-stem-cell-assays
#4
Hong P T Nguyen, L Xiao, James A Deane, Ker-Sin Tan, Fiona L Cousins, Hirotaka Masuda, Carl N Sprung, Anna Rosamilia, Caroline E Gargett
STUDY QUESTION: Is there a specific surface marker that identifies human endometrial epithelial progenitor cells with adult stem cell activity using in vitro assays? SUMMARY ANSWER: N-cadherin isolates clonogenic, self-renewing human endometrial epithelial progenitor cells with high proliferative potential that differentiate into cytokeratin+ gland-like structures in vitro and identifies their location in some cells of gland profiles predominantly in basalis endometrium adjacent to the myometrium...
September 27, 2017: Human Reproduction
https://www.readbyqxmd.com/read/29040544/mutation-specific-downregulation-of-cftr2-variants-by-gating-potentiators
#5
Radu G Avramescu, Yukari Kai, Haijin Xu, Aurélien Bidaud-Meynard, Andrea Schnúr, Saul Frenkiel, Elias Matouk, Guido Veit, Gergely L Lukacs
Approximately 50% of cystic fibrosis (CF) patients are heterozygous with a rare mutation on at least one allele. Several mutants exhibit functional defects, correctable by gating potentiators. Long-term exposure (≥24h) to the only available potentiator drug, VX-770, leads to the biochemical and functional downregulation of F508del-CFTR both in immortalized and primary human airway cells, and possibly other CF mutants, attenuating its beneficial effect. Based on these considerations, we wanted to determine the effect of chronic VX-770 exposure on the functional and biochemical expression of rare CF processing/gating mutants in human airway epithelia...
October 4, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/29040430/transcriptomic-landscape-of-treatment-na%C3%A3-ve-ulcerative-colitis
#6
Hagar Taman, Christopher G Fenton, Inga V Hensel, Endre Anderssen, Jon Florholmen, Ruth H Paulssen
Background and Aims: Ulcerative colitis (UC) is a chronic inflammatory disease that effects the gastrointestinal tract and is considered one of the most prominent and common forms of inflammatory bowel disease (IBD). This study aimed to define and describe the entire transcriptomic landscape in a well-stratified, treatment-naïve UC patient population compared to control patients by using next-generation technology, RNA-Seq. Methods: Mucosal biopsies from treatment-naïve UC patients (n=14), and healthy controls (n=16) underwent RNA-Seq...
October 10, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/29040365/role-of-the-akt-mtor-signaling-pathway-in-human-papillomavirus-associated-nasal-and-sinonasal-inverted-papilloma
#7
Yongliang Liu, Lihua Duan, Jie Tian, Daoliang Song, Min Zhang, Shenlin Zhao, Zhaofu Yin, Xinxin Xiang, Xuezhong Li
Nasal and sinonasal inverted papilloma (NSIP) is a benign tumor in which surface epithelial cells grow downward into the underlying supportive tissue with varying degrees of metaplasia. Human papillomavirus (HPV) has been proposed as the causal agent in the pathogenesis of this disease. Many studies have shown that HPV can activate the Akt/mechanistic target of rapamycin (mTOR) signaling pathway, but the role of this pathway in HPV-associated NSIP is largely unknown. In this study, we enrolled 40 control tissue samples and 80 NSIP tissue samples...
October 13, 2017: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/29040332/the-developmental-programme-for-genesis-of-the-entire-kidney-is-recapitulated-in-wilms-tumour
#8
Ryuji Fukuzawa, Matthew R Anaka, Ian M Morison, Anthony E Reeve
Wilms tumour (WT) is an embryonal tumour that recapitulates kidney development. The normal kidney is formed from two distinct embryological origins: the metanephric mesenchyme (MM) and the ureteric bud (UB). It is generally accepted that WT arises from precursor cells in the MM; however whether UB-equivalent structures participate in tumorigenesis is uncertain. To address the question of the involvement of UB, we assessed 55 Wilms tumours for the molecular features of MM and UB using gene expression profiling, immunohistochemsitry and immunofluorescence...
2017: PloS One
https://www.readbyqxmd.com/read/29040183/the-prognostic-impact-of-the-pathological-response-to-neoadjuvant-dose-dense-therapy-for-ovarian-carcinoma
#9
Takahiro Ebata, Mayu Yunokawa, Hiroshi Yoshida, Seiko Bun, Tatsunori Shimoi, Akihiko Shimomura, Makoto Kodaira, Kan Yonemori, Chikako Shimizu, Yasuhiro Fujiwara, Tomoyasu Kato, Kenji Tamura
OBJECTIVE: The aim of this study was to assess the use of the pathological response to neoadjuvant chemotherapy (NAC) for predicting disease prognosis in patients with advanced ovarian cancer who received neoadjuvant dose-dense weekly paclitaxel and carboplatin (dd-TC) therapy. METHODS: We retrospectively investigated patients with advanced epithelial ovarian, tubal, or peritoneal carcinoma treated at our hospital from July 2004 to October 2014. Patients received dd-TC therapy as NAC followed by interval debulking surgery (IDS)...
October 17, 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/29040119/prospective-clinical-trial-of-corneal-reconstruction-with-biomaterial-free-cultured-oral-mucosal-epithelial-cell-sheets
#10
Yu Jeong Kim, Hyun Ju Lee, Jin Suk Ryu, Yun Hee Kim, Saewha Jeon, Joo Youn Oh, Ho Kyung Choung, Sang In Khwarg, Won Ryang Wee, Mee Kum Kim
PURPOSE: To investigate the efficacy and safety of transplantation with biomaterial-free cultured oral mucosal epithelial cell sheets (COMECs) for ocular reconstruction in subjects with total limbal stem cell deficiency. METHODS: A prospective clinical trial (NCT02149732) was conducted in 8 subjects with total limbal stem cell deficiency after approval from the institutional review board of Seoul National University Hospital (H-0707-043-213) and the Ministry of Food and Drug Safety of Korea...
October 13, 2017: Cornea
https://www.readbyqxmd.com/read/29040000/methionine-induces-lat1-expression-in-dairy-cow-mammary-gland-by-activating-the-mtorc1-signaling-pathway
#11
Xiaoyu Duan, Ye Lin, He Lv, Yang Yang, Hongtao Jiao, Xiaoming Hou
Methionine is the limiting amino acid for milk protein synthesis in dairy cows. The effect of methionine availability on milk protein synthesis is dependent on its active transport into cells through amino acid transporters. L-type amino acid transporter 1 (LAT1), which induces the transport of neutral amino acids, is highly expressed in lactating mammary gland. However, the effect of methionine on LAT1 expression and the mechanism governing this process in dairy cow mammary gland are poorly understood. In this study, we show that treatment of dairy cow mammary epithelial cells with increasing concentrations of methionine for 24 h resulted in increased expression of LAT1 and its associated protein 4F2 heavy chain (4F2hc)...
October 17, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/29039981/calcitriol-the-active-metabolite-of-vitamin-d3-inhibits-dry-eye-related-corneal-inflammation-in-vivo-and-in-vitro
#12
Jing Zhang, Yiqin Dai, Dan Wu, Jianjiang Xu
PURPOSE: To examine the influence of topical administration of calcitriol on dry eye (DE) related corneal inflammation. METHODS: Benzalkonium chloride (BAC, 0.2%) was applied to induce DE. Then rats were treated topically with calcitriol (10(-6)μM). Tear break-up time (TBUT), fluorescein staining score, inflammatory index, and tear volume were measured. Corneal epithelium damage and corneal inflammation were examined by H&E staining or RT-qPCR. In vitro, human corneal epithelial cells (iHCEC) were cultured in hyperosmotic medium (450 mOsM) with various concentrations of calcitriol...
October 17, 2017: Ocular Immunology and Inflammation
https://www.readbyqxmd.com/read/29039926/zebrafish-a-visual-model-to-evaluate-the-biofate-of-transferrin-receptor-targeted-7peptide-decorated-coumarin-6-micelles
#13
Ye Li, Xiaoning Song, Xiang Yi, Ruibing Wang, Simon Ming-Yuen Lee, Xueqing Wang, Ying Zheng
In the present study, the zebrafish was explored as an in vivo model to assess the biofate of transferrin receptor (TfR)-targeted coumarin 6 (C6) micelles across various biological barriers. Three 7peptide (7pep)-decorated poly-(ethylene glycol)-block-poly (ε-caprolactone) (PEG-b-PCL) micelles loaded with fluorescence coumarin 6 (7pep-M-C6) with different ligand densities were constructed with particle sizes between 30-40 nm. Whole-mount immunostaining revealed that the expression level of TfR in the retina, brain and intestine increased along with development stage...
October 17, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29036897/inhibition-of-starvation-triggered-endoplasmic-reticulum-stress-autophagy-and-apoptosis-in-arpe-19-cells-by-taurine-through-modulating-the-expression-of-calpain-1-and-calpain-2
#14
Yuanyuan Zhang, Shu Ren, Yuci Liu, Kun Gao, Zheng Liu, Zhou Zhang
Age-related macular degeneration (AMD) is a complex disease with multiple initiators and pathways that converge on death for retinal pigment epithelial (RPE) cells. In this study, effects of taurine on calpains, autophagy, endoplasmic reticulum (ER) stress, and apoptosis in ARPE-19 cells (a human RPE cell line) were investigated. We first confirmed that autophagy, ER stress and apoptosis in ARPE-19 cells were induced by Earle's balanced salt solution (EBSS) through starvation to induce RPE metabolic stress...
October 14, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29036791/globo-h-expression-is-associated-with-driver-mutations-and-pd-l1-expressions-in-stage-i-non-small-cell-lung-cancer
#15
Ching-Yao Yang, Mong-Wei Lin, Yih-Leong Chang, Chen-Tu Wu
BACKGROUND: Globo H is a tumor-associated carbohydrate antigen exclusively expressed in cancer cells rather than normal tissue. Globo H has been found on many cancers of epithelial origins, and become an attractive target for cancer vaccine. OBJECTIVES: We aimed to study the expression of Globo H in non-small cell lung cancer (NSCLC) patients, and correlated its expression with common driver mutations, clinical outcomes, and status of immune checkpoint, programmed death-ligand 1 (PD-L1)...
September 29, 2017: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/29036538/stlr4-md-2-complex-inhibits-colorectal-cancer-migration-and-invasiveness-in-vitro-and-in-vivo-by-lncrna-h19-down-regulation
#16
Weijun Liang, Yan Zou, Fengxian Qin, Jifei Chen, Junyi Xu, Shifeng Huang, Jingfan Chen, Shengming Dai
Long non-coding RNAs (lncRNAs) have multiple functions in gene regulation and during cellular processes. However, the functional roles of lncRNAs in colorectal cancer (CRC) have not yet been well understood. In our previous study, we demonstrated that sTLR4/MD-2 complex can inhibit CRC in vitro and in vivo by targeting LPS. Therefore, the aim of the present study is to investigate the expression of lncRNA H19 in CRC and to evaluate its effect on the inhibition of sTLR4/MD-2 complex. The expression of H19 is measured in 63 CRC tumor tissues and adjacent normal tissues by quantitative real-time PCR (qRT-PCR)...
September 28, 2017: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/29036448/il6-secretion-from-alternatively-activated-macrophages-promotes-the-migration-of-endometriotic-epithelial-cells
#17
Jeong-Hwa Woo, Yeong-In Yang, Ji-Hye Ahn, Youn Seok Choi, Jung-Hye Choi
Accumulating evidence has suggested an interaction between endometriotic cells and macrophages in the endometriotic microenvironment and the potential role of this interaction in the pathogenesis of endometriosis. However, how endometriotic cells communicate with macrophages to influence their function is poorly understood. In the present study, we found that the mRNA expression and production of CC chemokine ligand 2 (CCL2) were much higher in human endometriotic epithelial cells (11Z and 12Z) than those in human endometrial epithelial cells (HES)...
October 4, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/29036275/porcupine-dependent-wnt-activity-within-the-uterine-epithelium-is-essential-for-fertility
#18
Omar Farah, Steffen Biechele, Janet Rossant, Daniel Dufort
The secretion of mammalian Wnt ligands within the cell is dependent on the activity of Porcupine, a gene located on the X-chromosome that encodes for a membrane bound o-acyl transferase. Here, we report that post-natal ablation of Porcupine in the uterine luminal epithelium alone results in the decrease in endometrial gland number. Despite having uterine glands, mutant females are completely infertile. Epithelial ablation of Porcupine causes defects in timely apposition of the lumen, along with failure to respond to artificial decidual induction...
October 4, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/29035831/the-effects-of-novel-chitosan-targeted-gemcitabine-nanomedicine-mediating-cisplatin-on-epithelial-mesenchymal-transition-invasion-and-metastasis-of-pancreatic-cancer-cells
#19
Haibo Yu, Hongliang Song, Jun Xiao, Haichuan Chen, Xiaodan Jin, Xizhou Lin, Bujian Pan, Wu Ji
OBJECTIVE: The study aimed to evaluate the effects involved with the novel chitosan gemcitabine (Gem) nanoparticles mediating cisplatin (DDP) on epithelial mesenchymal transition (EMT), invasion and metastasis of pancreatic cancer (PC) cells. METHODS: A total of 62 healthy purebred BALB/C of specific-pathogen free (SPF) female nude mice were recruited and a SW1990 cell line was subsequently cultured. A heterotopic xenograft tumor model was constructed. After determining the optimal drug concentration, the nude mice were assigned into the control, glycol chitosan (GC)-Gem microsphere, antibody Complex (Abc)-GC-Gem and Abc-GC-Gem microsphere+DDP groups (n=8 in each group)...
October 13, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29035736/mechanotransduction-of-human-pluripotent-stem-cells-cultivated-on-tunable-cell-derived-extracellular-matrix
#20
In Gul Kim, Chang-Hyun Gil, Joseph Seo, Soon-Jung Park, Ramesh Subbiah, Taek-Hee Jung, Jong Soo Kim, Young-Hoon Jeong, Hyung-Min Chung, Jong Ho Lee, Man Ryul Lee, Sung-Hwan Moon, Kwideok Park
Cell-derived matrices (CDM) are becoming an attractive alternative to conventional biological scaffolding platforms due to its unique ability to closely recapitulate a native extracellular matrix (ECM) de novo. Although cell-substrate interactions are recognized to be principal in regulating stem cell behavior, very few studies have documented the acclimation of human pluripotent stem cells (hPSCs) on pristine and altered cell-derived matrices. Here, we investigate crosslink-induced mechanotransduction of hPSCs cultivated on decellularized fibroblast-derived matrices (FDM) to explore cell adhesion, growth, migration, and pluripotency in various biological landscapes...
October 9, 2017: Biomaterials
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