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https://www.readbyqxmd.com/read/29150960/epithelial-cell-adhesion-molecule-fragments-and-signaling-in-primary-human-liver-cells
#1
Jörg C Gerlach, Hubert G Foka, Robert L Thompson, Bruno Gridelli, Eva Schmelzer
Epithelial Cell Adhesion Molecule (EpCAM), or CD326, is a trans-membrane glycoprotein expressed by multiple normal epithelia as well as carcinoma. Human hepatic stem cells and bile duct epithelium of the liver are EpCAM positive. In tumor cell lines, its intracellular domain can be released after cleavage of the extracellular domain. Within the cell nucleus it induces cell proliferation, but cleavage depends on cell contact. Fragments of various lengths have been described in tumor cells. Despite of its described important role in proliferation in tumor cells, there is not much known about the expression and role of EpCAM fragments in primary human liver cells...
November 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29150944/toll-like-receptor-signaling-pathway-as-a-potential-therapeutic-target-in-colorectal-cancer
#2
REVIEW
Reyhaneh Moradi-Marjaneh, Seyed Mahdi Hassanian, Hamid Fiuji, Saman Soleimanpour, Gordon A Ferns, Amir Avan, Majid Khazaei
Toll like receptor (TLR) signaling is involved in activating innate and adaptive immune responses and plays a critical role in inflammation-induced diseases such as colorectal cancer (CRC). Dysregulation of this signaling pathway can result in disturbance of epithelial layer hemostasis, chronic inflammatory, excessive repair responses and development of CRC. There is now substantial evidence for the benefit of targeting of this pathway in cancer treatment, and several agents have been approved, such as BCG (Bacillus Calmette Guérin), MPL (monophosphoryl lipid A) and imiquimod...
November 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29150940/tumor-suppressive-roles-of-%C3%AE-np63%C3%AE-mir-205-axis-in-epithelial-mesenchymal-transition-of-oral-squamous-cell-carcinoma-via-targeting-zeb1-and-zeb2
#3
Yuma Hashiguchi, Shintaro Kawano, Yuichi Goto, Kaori Yasuda, Naoki Kaneko, Taiki Sakamoto, Ryota Matsubara, Teppei Jinno, Yasuyuki Maruse, Hideaki Tanaka, Masahiko Morioka, Taichi Hattori, Shoichi Tanaka, Tamotsu Kiyoshima, Seiji Nakamura
We previously revealed that epithelial-to-mesenchymal transition (EMT) was mediated by ΔNp63β, a splicing variant of ΔNp63, in oral squamous cell carcinoma (OSCC). Recent studies have highlighted the involvement of microRNA (miRNA) in EMT of cancer cells, though the mechanism remains unclear. To identify miRNAs responsible for ΔNp63β-mediated EMT, miRNA microarray analyses were performed by ΔNp63β-overexpression in OSCC cells; SQUU-B, which lacks ΔNp63 expression and displays EMT phenotypes. miRNAs microarray analyses revealed miR-205 was the most up-regulated following ΔNp63β-overexpression...
November 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29150939/mir-34b-5p-inhibition-attenuates-lung-inflammation-and-apoptosis-in-an-lps-induced-acute-lung-injury-mouse-model-by-targeting-progranulin
#4
Wang Xie, Qingchun Lu, Kailing Wang, Jingjing Lu, Xia Gu, Dongyi Zhu, Fanglei Liu, Zhongliang Guo
BACKGROUND: Inflammation and apoptosis play important roles in the initiation and progression of acute lung injury (ALI). Our previous study has shown that progranulin (PGRN) exerts lung protective effects during LPS-induced ALI. Here, we have investigated the potential roles of PGRN-targeting microRNAs (miRNAs) in regulating inflammation and apoptosis in ALI and have highlighted the important role of PGRN. METHODS: LPS-induced lung injury and the protective roles of PGRN in ALI were first confirmed...
November 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29150934/the-current-status-and-perspectives-regarding-the-clinical-implication-of-intracellular-calcium-in-breast-cancer
#5
REVIEW
Amir Tajbakhsh, Alireza Pasdar, Mehdi Rezaee, Mostafa Fazeli, Saman Soleimanpour, Seyed Mahdi Hassanian, Zahra FarshchiyanYazdi, Tayebe Younesi Rad, Gordon A Ferns, Amir Avan
Calcium ions (Ca(2+) ) act as second messengers in intracellular signaling. Ca(2+) pumps, channels, sensors, and calcium binding proteins, regulate the concentrations of intracellular Ca(2+) as a key regulator of important cellular processes such as gene expression, proliferation, differentiation, DNA repair, apoptosis, metastasis, and hormone secretion. Intracellular Ca(2+) also influences the functions of several organelles, that include: the endoplasmic reticulum, mitochondria, the Golgi, and cell membrane both in normal and breast cancer cells...
November 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29150810/liver-fibrosis-alleviation-after-co-transplantation-of-hematopoietic-stem-cells-with-mesenchymal-stem-cells-in-patients-with-thalassemia-major
#6
Ardeshir Ghavamzadeh, Masoud Sotoudeh, Amir Pejman Hashemi Taheri, Kamran Alimoghaddam, Hossein Pashaiefar, Mahdi Jalili, Farhad Shahi, Mohammad Jahani, Marjan Yaghmaie
The aims of this study are to determine the replacement rate of damaged hepatocytes by donor-derived cells in sex-mismatched recipient patients with thalassemia major and to determine whether co-transplantation of mesenchymal stem cells and hematopoietic stem cells (HSCs) can alleviate liver fibrosis. Ten sex-mismatched donor-recipient pairs who received co-transplantation of HSCs with mesenchymal stem cells were included in our study. Liver biopsy was performed before transplantation. Two other liver biopsies were performed between 2 and 5 years after transplantation...
November 17, 2017: Annals of Hematology
https://www.readbyqxmd.com/read/29150601/decoding-critical-long-non-coding-rna-in-ovarian-cancer-epithelial-to-mesenchymal-transition
#7
Ramkrishna Mitra, Xi Chen, Evan J Greenawalt, Ujjwal Maulik, Wei Jiang, Zhongming Zhao, Christine M Eischen
Long non-coding RNA (lncRNA) are emerging as contributors to malignancies. Little is understood about the contribution of lncRNA to epithelial-to-mesenchymal transition (EMT), which correlates with metastasis. Ovarian cancer is usually diagnosed after metastasis. Here we report an integrated analysis of >700 ovarian cancer molecular profiles, including genomic data sets, from four patient cohorts identifying lncRNA DNM3OS, MEG3, and MIAT overexpression and their reproducible gene regulation in ovarian cancer EMT...
November 17, 2017: Nature Communications
https://www.readbyqxmd.com/read/29150518/molecular-characterization-of-an-endozoicomonas-like-organism-causing-infection-in-king-scallop-pecten-maximus-l
#8
Irene Cano, Ronny van Aerle, Stuart Ross, David W Verner-Jeffreys, Richard K Paley, Georgina Rimmer, David Ryder, Patrick Hooper, David Stone, Stephen W Feist
One of the fastest growing fisheries in the UK is the king scallop Pecten maximus L., also currently rated as the second most valuable. Mass mortality events in scallops have been reported world-wide, often with the causative agent(s) remaining uncharacterized. In May 2013 and 2014, two mass mortality events affecting king scallops were recorded in the Lyme Bay Marine Protected Area (MPA), in South West England. Histopathological examination showed gill epithelial tissues infected with intracellular microcolonies of bacteria (IMC), resembling rickettsia-like organisms (RLOs), often with bacteria released in vascular spaces...
November 17, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/29150411/an-epithelial-biomarker-signature-for-idiopathic-pulmonary-fibrosis-an-analysis-from-the-multicentre-profile-cohort-study
#9
Toby M Maher, Eunice Oballa, Juliet K Simpson, Joanne Porte, Anthony Habgood, William A Fahy, Aiden Flynn, Philip L Molyneaux, Rebecca Braybrooke, Hrushikesh Divyateja, Helen Parfrey, Doris Rassl, Anne-Marie Russell, Gauri Saini, Elisabetta A Renzoni, Anne-Marie Duggan, Richard Hubbard, Athol U Wells, Pauline T Lukey, Richard P Marshall, R Gisli Jenkins
BACKGROUND: Idiopathic pulmonary fibrosis (IPF) is a progressive, fatal disorder with a variable disease trajectory. The aim of this study was to assess potential biomarkers to predict outcomes for people with IPF. METHOD: PROFILE is a large prospective longitudinal cohort of treatment-naive patients with IPF. We adopted a two-stage discovery and validation design using patients from the PROFILE cohort. For the discovery analysis, we examined 106 patients and 50 age and sex matched healthy controls from Nottingham University Hospitals NHS Trust and the Royal Brompton Hospital...
November 14, 2017: Lancet Respiratory Medicine
https://www.readbyqxmd.com/read/29150353/barrier-dysfunction-in-the-nasal-allergy
#10
REVIEW
Ayumi Fukuoka, Tomohiro Yoshimoto
Epithelial cells form the first physiological barrier against invasion by pathogens and the infiltration of allergens. Tight junctions (TJ), a cell-cell junctional complex located on the apical side of epithelial cells, have a critical role in the maintenance of epithelial barrier function. Impaired TJ structures are observed in patients with asthma, atopic dermatitis and nasal allergy; therefore, the dysfunction of epithelial barriers might be involved in the initiation or progression of allergic diseases...
November 14, 2017: Allergology International: Official Journal of the Japanese Society of Allergology
https://www.readbyqxmd.com/read/29150347/-perineal-groove-case-report-and-review-of-the-literature
#11
Y de La Monneraye, G Benoist, L Marchesi, A-S Crosnier, V Guinard-Samuel
Perineal groove is a rare anoperineal congenital malformation, usually occurring in girls, unknown to many pediatricians. We report the case of a 17-day-old girl admitted for urinary infection, who presented a wet sulcus with mucous membrane, extending from the vaginal fourchette to the anterior border of the anus. The diagnosis of perineal groove was clinically confirmed, after elimination of misdiagnosis such as infection or trauma. This benign malformation tends to be self-epithelialized in the 1st year of life, and no surgical treatment is recommended, except for cosmetic reasons or for recurrent infections...
November 14, 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/29150269/potential-role-of-the-virchow-robin-space-in-the-pathogenesis-of-bacterial-meningitis
#12
Patrick Chan, Denis J Meerdink, James A Uchizono
Meningitis is an infectious disease commonly arising from a bacterial etiology. The rapid progression of morbidity and mortality due to bacterial meningitis requires critical and imminent time-dependent clinical intervention. Although it is unambiguously clear that bacteria must infiltrate the cerebrospinal fluid, the sequence of events in the pathogenesis of bacterial meningitis has not been fully elucidated. Most reviews of the pathogenesis of bacterial meningitis do not specify the anatomical location of bacteria following BBB traversal...
November 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/29149993/label-free-determination-of-prostate-specific-membrane-antigen-in-human-whole-blood-at-nanomolar-levels-by-magnetically-assisted-surface-enhanced-raman-spectroscopy
#13
Zuzana Chaloupková, Anna Balzerová, Jitka Bařinková, Zdenka Medříková, Pavel Šácha, Petr Beneš, Václav Ranc, Jan Konvalinka, Radek Zbořil
Prostate cancer is one of the most common cancers among men and can in its later stages cause serious medical problems. Due to the limited suitability of current diagnostic biochemical markers, new biomarkers for the detection of prostate cancer are highly sought after. An ideal biomarker should serve as a reliable prognostic marker, be applicable for early diagnosis, and be applicable for monitoring of therapeutic response. One potential candidate is glutamate carboxypeptidase II (GCPII), also known as prostate specific membrane antigen (PSMA), which has a promising role for direct imaging...
January 2, 2018: Analytica Chimica Acta
https://www.readbyqxmd.com/read/29149731/purinergic-drug-targets-for-gastrointestinal-disorders
#14
REVIEW
Geoffrey Burnstock, Kenneth A Jacobson, Fievos L Christofi
Purinergic receptors are implicated in the pathogenesis of gastrointestinal disorders and are being explored as potential therapeutic targets. Gut inflammation releases ATP that acts on neuronal, glial, epithelial and immune cells. Purinergic signalling in glia and neurons is implicated in enteric neuropathies. Inflammation activates glia to increase ATP release and alter purinergic signalling. ATP release causes neuron death and gut motor dysfunction in colitis via a P2X7-dependent neural-glial pathway and a glial purinergic-connexin-43 pathway...
November 14, 2017: Current Opinion in Pharmacology
https://www.readbyqxmd.com/read/29149196/easy-xeno-free-and-feeder-free-method-for-isolating-and-growing-limbal-stromal-and-epithelial-stem-cells-of-the-human-cornea
#15
Djida Ghoubay-Benallaoua, Céline de Sousa, Raphaël Martos, Gaël Latour, Marie-Claire Schanne-Klein, Elisabeth Dupin, Vincent Borderie
Epithelial and stromal stem cells are required to maintain corneal transparency. The aim of the study was to develop a new method to isolate and grow both corneal stromal (SSC) and epithelial limbal (LSC) stem cells from small human limbal biopsies under culture conditions in accordance with safety requirements mandatory for clinical use in humans. Superficial limbal explants were retrieved from human donor corneo-scleral rims. Human limbal cells were dissociated by digestion with collagenase A, either after epithelial scraping or with no scraping...
2017: PloS One
https://www.readbyqxmd.com/read/29148840/resveratrol-induces-mitochondrial-apoptosis-and-inhibits-epithelial-mesenchymal-transition-in-oral-squamous-cell-carcinoma-cells
#16
Seong-Eon Kim, Sang-Hun Shin, Jae-Yeol Lee, Chul-Hoon Kim, In-Kyo Chung, Hae-Mi Kang, Hae-Ryoun Park, Bong-Soo Park, In-Ryoung Kim
OSCC is the most common malignant cancer of the head and neck. EMT is an essential cellular process critical to the morphogenesis and homeostasis of solid tissues. It is also involved in the initial stage of cancer metastasis and invasion in which cells lose epithelial characteristics. While cancer therapy protocols such as surgery, radiation, and chemotherapy are effective and useful, the drug tolerance and toxicity of OSCC patients remain a problem. Resveratrol is mainly produced in red grape skin and exhibits anti-oxidative, anti-inflammatory, anti-proliferative, and anti-cancer properties...
November 17, 2017: Nutrition and Cancer
https://www.readbyqxmd.com/read/29148719/effect-of-antigen-retrieval-methods-on-non-specific-binding-of-anti-body-metal-nanoparticle-conjugates-on-ffpe-tissue
#17
Yuying Zhang, Xinping Wang, Sven Perner, Ágnes Bánkfalvi, Sebastian Schlücker
Immunohistochemical analysis of FFPE tissues provides important diagnostic and prognostic information in pathology. Metal nanoparticles (NPs) and in particular surface-enhanced Raman scattering (SERS) nanotags as a new class of labelling reagents are promising to be used for multiplexed protein profiling on tissue sections. However, non-specific binding of NPs onto the tissue specimens greatly hampers their clinical applications. In this study, we found that the antigen retrieval method strongly influences the extent of non-specific binding of the antibody-SERS NP conjugates to the tissue...
November 17, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/29148603/mcp2-activates-nf-%C3%AE%C2%BAb-signaling-pathway-promoting-the-migration-and-invasion-of-escc-cells
#18
Jian Zhou, Shutao Zheng, Tao Liu, Qing Liu, Yumei Chen, Doudou Tan, Rong Ma, Xiaomei Lu
MCP2, aliased CCL8, has been suggested to be implicated in the metastasis of cancer cells; however no direct evidence has been established in esophageal squamous cell carcinoma (ESCC). In our present study, to investigate the role MCP2 played in the metastasis of ESCC cells; in vitro cell co-culture system was established. Wound-healing and Transwell assays were used to evaluate the migratory and invasive variation of ESCC cells before and after treatment with recombinant human MCP2. It was shown that MCP2 was able to activate the NF-κB signaling pathway inducing the epithelial-mesenchymal transition (EMT) and promoting the migration and invasion of ESCC cells in vitro...
November 17, 2017: Cell Biology International
https://www.readbyqxmd.com/read/29148585/arsenite-downregulates-h3k4-trimethylation-and-h3k9-dimethylation-during-transformation-of-human-bronchial-epithelial-cells
#19
Wei Tu, Yin Liu, Chengfeng Xie, Xue Zhou
Arsenic is an established human carcinogen but with weak mutagenic activity. The mechanisms of arsenic-induced carcinogenesis are not well understood. In the present study, we investigated the role of histone methylation in transformation of human bronchial epithelial (BEAS-2B) cells. After 16 weeks' exposure, cells were transformed by 0.1, 0.5 and 1 μm arsenite. Global trimethylated H3K4 (H3K4me3) was decreased by 0.1 μm arsenite at 12 weeks, and 0.5 and 1 μm arsenite at 8, 12 and 16 weeks, which could be attributed to reduced histone methyltransferase activities, increased histone demethylase (HDM) activities as well as increased protein levels of H3K4 demethylase KDM5A...
November 17, 2017: Journal of Applied Toxicology: JAT
https://www.readbyqxmd.com/read/29148567/silenced-dmbt1-promotes-nasal-mucosa-epithelial-cell-growth
#20
Xiaoqing Lu, Yaping Xu, Yu Zhao, Qilei Tao, Jian Wu
OBJECTIVE: The aim of this study was to investigate the role of the deleted in malignant brain tumors 1 (DMBT1) gene in the development of nasal polyps, as well as related mechanisms. METHODS: A stable human nasal mucosa epithelial cell (HNEpC) line with low expression of DMBT1 was generated. Three groups were established: a control group (HNEpCs without any treatment), a control short interference RNA (shRNA) group (HNEpCs transfected with an empty vector), and a DMBT1 shRNA group (HNEpCs with silenced DMBT1)...
November 17, 2017: Annals of Human Genetics
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