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Fibrosis and cancer

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https://www.readbyqxmd.com/read/29158259/structural-analyses-of-key-features-in-the-kank1-kif21a-complex-yield-mechanistic-insights-into-the-crosstalk-between-microtubules-and-the-cell-cortex
#1
Zhuangfeng Weng, Yuan Shang, Deqiang Yao, Jinwei Zhu, Rongguang Zhang
The crosstalk between dynamic microtubules (MTs) and the cell cortex plays important roles in cell division, polarity, and migration. A critical adaptor that links the plus ends of MTs with the cell cortex is the KN motif and ankyrin repeat domains 1 (KANK1)/kinesin family member 21A (KIF21A) complex. Genetic defects in these two proteins are associated with various cancers and developmental diseases such as congenital fibrosis of the extraocular muscles type 1 (CFEOM1). However, the molecular mechanism governing the KANK1/KIF21A interaction and the role of the conserved ankyrin (ANK) repeats in this interaction are still unclear...
November 20, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29157977/cell-type-specific-pharmacological-kinase-inhibition-for-cancer-chemoprevention
#2
Manjeet Deshmukh, Shigeki Nakagawa, Takaaki Higashi, Adam Vincek, Anu Venkatesh, Marina Ruiz de Galarreta, Anna P Koh, Nicolas Goossens, Hadassa Hirschfield, C Billie Bian, Naoto Fujiwara, Atsushi Ono, Hiroki Hoshida, Mohamed El-Abtah, Noor B Ahmad, Amaia Lujambio, Roberto Sanchez, Bryan C Fuchs, Klaas Poelstra, Jai Prakash, Yujin Hoshida
Safety is prerequisite for preventive medicine, but non-toxic agents are generally ineffective as clinical chemoprevention. Here we propose a strategy overcoming this challenge by delivering molecular-targeted agent specifically to the effector cell type to achieve sufficient potency, while circumventing toxicity in the context of cancer chemoprevention. Hepatic myofibroblasts drive progressive fibrosis that results in cirrhosis and liver cancer. In a rat model of cirrhosis-driven liver cancer, a small molecule epidermal growth factor receptor inhibitor, erlotinib, was delivered specifically to myofibroblasts by a versatile nanoparticle-based system, targeting platelet-derived growth factor receptor-beta uniquely expressed on their surface in the liver...
November 17, 2017: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/29156528/actein-ameliorates-hepatic-steatosis-and-fibrosis-in-high-fat-diet-induced-nafld-by-regulation-of-insulin-and-leptin-resistant
#3
Hong-Jun Chen, Jin Liu
Insulin and leptin resistance are highly involved in metabolic syndrome and non-alcoholic fatty liver disease (NAFLD). Presently, no approved treatment is available. Actein is isolated from the rthizomes of Cimicifuga foetida, a triterpene glycoside, exhibiting important biological properties, such as anti-inflammatory, anti-cancer, and anti-oxidant activity. However, its effects on metabolic syndrome are poorly understood. The aims of the study were mainly to investigate the molecular mechanisms regulating insulin and leptin resistance, and lipogenic action of actein in high fat diet-fed mice...
November 15, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29156049/management-of-pregnant-women-and-children-focusing-on-preventing-mother-to-infant-transmission
#4
Huey-Ling Chen, Wan-Hsin Wen, Mei-Hwei Chang
Hepatitis B virus (HBV) immunization has been effectively preventing chronic HBV infection with >90% efficacy in countries with universal neonatal immunization. Perinatal mother-to-infant transmission of HBV remains the major cause of chronic HBV infection despite immunization. Maternal hepatitis B e-antigen (HBeAg) and high viral load have been noted to be the most important risk factors for transmission. In recent years, short-term antiviral therapy for pregnant women in the third trimester has been shown to be highly effective in reducing 90% of vaccine failure in children...
November 16, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29155423/experimental-models-of-pancreatic-cancer-desmoplasia
#5
Sujit Suklabaidya, Pujarini Dash, Biswajit Das, Voddu Suresh, Prakash K Sasmal, Shantibhusan Senapati
Desmoplasia is a fibro-inflammatory process and a well-established feature of pancreatic cancer. A key contributor to pancreatic cancer desmoplasia is the pancreatic stellate cell. Various in vitro and in vivo methods have emerged for the isolation, characterization, and use of pancreatic stellate cells in models of cancer-associated fibrosis. In addition to cell culture models, genetically engineered animal models have been established that spontaneously develop pancreatic cancer with desmoplasia. These animal models are currently being used for the study of pancreatic cancer pathogenesis and for evaluating therapeutics against pancreatic cancer...
November 20, 2017: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/29154949/a-novel-microscopy-based-assay-identifies-extended-synaptotagmin-1-esyt1-as-a-positive-regulator-of-anoctamin-1-traffic
#6
Joana R Lérias, Madalena C Pinto, Hugo M Botelho, Nikhil T Awatade, Margarida C Quaresma, Iris A L Silva, Podchanart Wanitchakool, Rainer Schreiber, Rainer Pepperkok, Karl Kunzelmann, Margarida D Amaral
An attractive possibility to treat Cystic Fibrosis (CF), a severe condition caused by dysfunctional CFTR, an epithelial anion channel, is through the activation of alternative (non-CFTR) anion channels. Anoctamin 1 (ANO1) was demonstrated to be a Ca(2+)-activated chloride channel (CaCC) and thus of high potential to replace CFTR. Despite that ANO1 is expressed in human lung CF tissue, it is present at the cell surface at very low levels. In addition, little is known about regulation of ANO1 traffic, namely which factors promote its plasma membrane (PM) localization...
November 15, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29154250/functional-endoscopic-sinus-surgery-fess-in-unilateral-sinus-disease
#7
Daniela Mielcarek-Kuchta, Karolina Simon, Dawid Kondratowicz, Zofia Łukomska, Aleksandra Rybak-Korytowska
BACKGROUND: Unilateral sinus disease (USD) occurs in 23 % of all cases. It is believed that it is mainly associated with cancer development. Retrospective data from large rhinological centers show that the most common USD is chronic rhinosinusitis (CRS), followed by mycosis, inverted papilloma and finally cancer, but only in a small percent of cases. THE AIM OF THE STUDY: The analysis of USD in the group of patients who underwent FESS at the secondary referral center...
October 30, 2017: Otolaryngologia Polska
https://www.readbyqxmd.com/read/29150921/tgf-%C3%AE-and-hepatocellular-carcinoma-when-a-friend-becomes-an-enemy
#8
Marco Arrese, Daniel Cabrera, Alejandra Hernandez, Luis Astete, Lisbell Estrada, Claudio Cabello-Verrugio
Hepatocellular carcinoma (HCC) is the second most common cause of cancer death worldwide accounting for more than 700 thousand deaths per year. Most of the HCC develops in a cirrhotic liver, a microenvironment where fibrotic tissue replaces parenchymal cells. Thus, there is a close connection between fibrosis and HCC development. Understanding the cellular and molecular mechanisms involved in this process is a crucial step to advance in novel therapeutic or pharmacological strategies to prevent or improve the course of this malignancy...
November 16, 2017: Current Protein & Peptide Science
https://www.readbyqxmd.com/read/29150142/association-between-non-alcoholic-fatty-liver-disease-and-cancer-incidence-rate
#9
Gi-Ae Kim, Han Chu Lee, Jaewon Choe, Min-Ju Kim, Min Jung Lee, Hye-Sook Chang, In Young Bae, Hong-Kyu Kim, Jihyun An, Ju Hyun Shim, Kang Mo Kim, Young-Suk Lim
BACKGROUND & AIMS: Little is known about the association between non-alcoholic fatty liver disease (NAFLD) and cancer development. This study investigated the cancer incidence rates in NAFLD and analysed the association between NAFLD and cancer development. METHODS: This historical cohort study included subjects who were followed up for >1 year after having a heath checkup at a tertiary hospital in Korea from September 1, 2004 to December 31, 2005. NAFLD was diagnosed by ultrasonographic detection of hepatic steatosis in the absence of other known liver disease, including alcoholic or viral hepatitis...
November 2, 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/29147917/recommendations-for-perioperative-management-of-lung-cancer-patients-with-comorbidities
#10
REVIEW
Hiroyoshi Tsubochi, Tomoki Shibano, Shunsuke Endo
OBJECTIVES: To improve surgical outcomes, clinicians must provide optimal perioperative care for comorbidities identified as significant factors in risk models for patients undergoing lung cancer surgery. METHODS: We reviewed trends in perioperative care for idiopathic pulmonary fibrosis, cardiovascular diseases, and end-stage renal diseases in patients undergoing lung cancer surgery, as large clinical databases indicate that these comorbidities are significant risk factors for lung cancer surgery...
November 16, 2017: General Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29146100/emerging-role-of-extracellular-vesicles-as-a-senescence-associated-secretory-phenotype-insights-into-the-pathophysiology-of-lung-diseases
#11
REVIEW
Tsukasa Kadota, Yu Fujita, Yusuke Yoshioka, Jun Araya, Kazuyoshi Kuwano, Takahiro Ochiya
Aging is a major risk factor for the development of chronic lung diseases such as chronic obstructive pulmonary disease (COPD), idiopathic pulmonary fibrosis (IPF), and lung cancer. A main aspect of aging is the impaired function of maintaining homeostasis in the organs and body, which is associated with cellular senescence. Cellular senescence is recognized as the state of irreversible cell cycle arrest in response to a variety of cellular stresses. Senescent cells are not simply cell cycle-arrested cells; they also affect bystander cells through the secretion of bioactive molecules, termed the senescence-associated secretory phenotype (SASP)...
November 17, 2017: Molecular Aspects of Medicine
https://www.readbyqxmd.com/read/29144460/inflammation-induced-iga-cells-dismantle-anti-liver-cancer-immunity
#12
Shabnam Shalapour, Xue-Jia Lin, Ingmar N Bastian, John Brain, Alastair D Burt, Alexander A Aksenov, Alison F Vrbanac, Weihua Li, Andres Perkins, Takaji Matsutani, Zhenyu Zhong, Debanjan Dhar, Jose A Navas-Molina, Jun Xu, Rohit Loomba, Michael Downes, Ruth T Yu, Ronald M Evans, Pieter C Dorrestein, Rob Knight, Christopher Benner, Quentin M Anstee, Michael Karin
The role of adaptive immunity in early cancer development is controversial. Here we show that chronic inflammation and fibrosis in humans and mice with non-alcoholic fatty liver disease is accompanied by accumulation of liver-resident immunoglobulin-A-producing (IgA(+)) cells. These cells also express programmed death ligand 1 (PD-L1) and interleukin-10, and directly suppress liver cytotoxic CD8(+) T lymphocytes, which prevent emergence of hepatocellular carcinoma and express a limited repertoire of T-cell receptors against tumour-associated antigens...
November 16, 2017: Nature
https://www.readbyqxmd.com/read/29143875/the-role-of-18f-fdg-pet-ct-and-pet-mri-in-pancreatic-ductal-adenocarcinoma
#13
Randy Yeh, Laurent Dercle, Ishan Garg, Zhen Jane Wang, David M Hough, Ajit H Goenka
Pancreatic ductal adenocarcinoma (PDAC) remains a difficult disease to treat and continues to portend a poor prognosis, as most patients are unresectable at diagnosis. 18F-fluorodeoxyglucose (FDG) positron emission tomography (PET) combined with CT (PET/CT) has been a cornerstone in oncological imaging of different cancers; however, the role of PET/CT in PDAC is continually evolving and currently not well established. Studies have shown the potential of PET/CT in guiding the management of patients with PDAC, with possible added benefit over anatomic imaging with CT or MRI in certain scenarios...
November 16, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/29140985/notch-signaling-and-progenitor-ductular-reaction-in-steatohepatitis
#14
Carola M Morell, Romina Fiorotto, Marica Meroni, Aileen Raizner, Barbara Torsello, Massimiliano Cadamuro, Gaia Spagnuolo, Eleanna Kaffe, Salvatore Sutti, Emanuele Albano, Mario Strazzabosco
BACKGROUND AND OBJECTIVE: Persistent hepatic progenitor cells (HPC) activation resulting in ductular reaction (DR) is responsible for pathologic liver repair in cholangiopathies. Also, HPC/DR expansion correlates with fibrosis in several chronic liver diseases, including steatohepatitis. Increasing evidence indicates Notch signaling as a key regulator of HPC/DR response in biliary and more in general liver injuries. Therefore, we aimed to investigate the role of Notch during HPC/DR activation in a mouse model of steatohepatitis...
2017: PloS One
https://www.readbyqxmd.com/read/29139244/raman-exfoliative-cytology-for-oral-precancer-diagnosis
#15
Aditi Sahu, Poonam Gera, Venkatesh Pai, Abhishek Dubey, Gunjan Tyagi, Mandavi Waghmare, Sandeep Pagare, Manoj Mahimkar, C Murali Krishna
Oral premalignant lesions (OPLs) such as leukoplakia, erythroplakia, and oral submucous fibrosis, often precede oral cancer. Screening and management of these premalignant conditions can improve prognosis. Raman spectroscopy has previously demonstrated potential in the diagnosis of oral premalignant conditions (in vivo), detected viral infection, and identified cancer in both oral and cervical exfoliated cells (ex vivo). The potential of Raman exfoliative cytology (REC) in identifying premalignant conditions was investigated...
November 2017: Journal of Biomedical Optics
https://www.readbyqxmd.com/read/29138594/prevention-and-treatment-of-acute-and-chronic-radiodermatitis
#16
Sophie Seité, René-Jean Bensadoun, Jean-Michel Mazer
More than half the number of patients with cancer, who are treated with radiotherapy, will have radiodermatitis at some point during their treatment. Radiodermatitis either occurs early on in the treatment period or appears months or up to several years later. Acute radiodermatitis is a burn injury that varies in severity according to both treatment and inherent patient factors. Most acute radiodermatitis reactions resolve after several weeks but some reactions persist and can cause complications. Late-onset radiodermatitis is characterized by telangiectasia that forms on atrophic and fragile skin...
2017: Breast Cancer: Targets and Therapy
https://www.readbyqxmd.com/read/29138119/thrombospondin-4-in-tissue-remodeling
#17
REVIEW
Olga Stenina-Adognravi, Edward F Plow
Thrombospondin-4 (TSP-4) belongs to the thrombospondin protein family that consists of five highly homologous members. A number of novel functions have been recently assigned to TSP-4 in cardiovascular and nervous systems, inflammation, cancer, and the motor unit, which have attracted attention to this extracellular matrix (ECM) protein. These newly discovered functions set TSP-4 apart from other thrombospondins. For example, TSP-4 promotes angiogenesis while other TSPs either prevent it or have no effect on new blood vessel growth; TSP-4 reduces fibrosis and collagen production while TSP-1 and TSP-2 promote fibrosis in several organs; unlike other TSPs, TSP-4 appears to have some structural functions in ECM...
November 11, 2017: Matrix Biology: Journal of the International Society for Matrix Biology
https://www.readbyqxmd.com/read/29137923/the-pdgf-pdgfr-pathway-as-a-drug-target
#18
REVIEW
Natalia Papadopoulos, Johan Lennartsson
Platelet-derived growth factors (PDGF) promotes cell proliferation, survival and migration, primarily of cells of mesenchymal origin. Dysfunction of PDGF signaling has been observed in a wide array of pathological conditions, such as cancer, fibrosis, neurological conditions and atherosclerosis. Reported abnormalities of the PDGF pathway include overexpression or amplification of PDGF receptors (PDGFRs), gain of function point mutations or activating chromosomal translocations. Current development of therapeutic drugs often aims at producing compounds that specifically target interaction between PDGFs and their receptors by specific DNA aptamers and ligand traps, or downregulate PDGFRs with blocking antibodies, or inhibit tyrosine kinase activity of PDGFRs with small molecules...
November 11, 2017: Molecular Aspects of Medicine
https://www.readbyqxmd.com/read/29134229/decursin-and-decursinol-angelate-molecular-mechanism-and-therapeutic-potential-in-inflammatory-diseases
#19
REVIEW
Adeeb Shehzad, Sajida Parveen, Munibah Qureshi, Fazli Subhan, Young Sup Lee
Epidemiological studies have shown that inflammation plays a critical role in the development and progression of various chronic diseases, including cancers, neurological diseases, hepatic fibrosis, diabetic retinopathy, and vascular diseases. Decursin and decursinol angelate (DA) are pyranocoumarin compounds obtained from the roots of Angelica gigas. Several studies have described the anti-inflammatory effects of decursin and DA. Decursin and DA have shown potential anti-inflammatory activity by modulating growth factors such as vascular endothelial growth factor, transcription factors such as signal transducer and activator of transcription 3 and nuclear factor kappa-light-chain-enhancer of activated B cells, cellular enzymes including matrix metalloproteinases cyclooxygenase, and protein kinases such as extracellular receptor kinase, phosphatidylinositol-3-kinase, and protein kinase C...
November 13, 2017: Inflammation Research: Official Journal of the European Histamine Research Society ... [et Al.]
https://www.readbyqxmd.com/read/29133080/population-pharmacokinetics-of-nintedanib-in-patients-with-idiopathic-pulmonary-fibrosis
#20
Ulrike Schmid, Christiane Doege, Claudia Dallinger, Matthias Freiwald
BACKGROUND: Nintedanib is a potent intracellular inhibitor of tyrosine kinases, including the receptor kinases vascular endothelial growth factor, platelet-derived growth factor and fibroblast growth factor. A previous model assessed the population pharmacokinetics of nintedanib and its main metabolite BIBF 1202 in patients with non-small cell lung cancer and idiopathic pulmonary fibrosis (IPF). The objective of this analysis was to further characterise the population pharmacokinetics of nintedanib in patients with IPF by including data from the Phase III trials...
November 10, 2017: Pulmonary Pharmacology & Therapeutics
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