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https://www.readbyqxmd.com/read/29719620/connective-tissue-growth-factor-specific-monoclonal-antibody-inhibits-growth-of-malignant-mesothelioma-in-an-orthotopic-mouse-model
#1
Yuuki Ohara, Shan Hwu Chew, Nobuaki Misawa, Shenqi Wang, Daiki Somiya, Kae Nakamura, Hiroaki Kajiyama, Fumitaka Kikkawa, Yuta Tsuyuki, Li Jiang, Kyoko Yamashita, Yoshitaka Sekido, Kenneth E Lipson, Shinya Toyokuni
Malignant mesothelioma is an aggressive neoplasm with no particularly effective treatments. We previously reported that overexpression of connective tissue growth factor (CTGF/CCN2) promotes mesothelioma growth, thus suggesting it as a novel molecular target. A human monoclonal antibody that antagonizes CTGF (FG-3019, pamrevlumab) attenuates malignant properties of different kinds of human cancers and is currently under clinical trial for the treatment of pancreatic cancer. This study reports the effects of FG-3019 on human mesothelioma in vitro and in vivo ...
April 6, 2018: Oncotarget
https://www.readbyqxmd.com/read/29696080/therapeutic-effects-of-serum-extracellular-vesicles-in-liver-fibrosis
#2
Li Chen, Ruju Chen, Sherri Kemper, Min Cong, Hong You, David R Brigstock
The lack of approved therapies for hepatic fibrosis seriously limits medical management of patients with chronic liver disease. Since extracellular vesicles (EVs) function as conduits for intercellular molecular transfer, we investigated if EVs from healthy individuals have anti-fibrotic properties. Hepatic fibrogenesis or fibrosis in carbon tetrachloride (CCl4 )- or thioacetic acid-induced liver injury models in male or female mice were suppressed by serum EVs from normal mice (EVN) but not from fibrotic mice (EVF)...
2018: Journal of Extracellular Vesicles
https://www.readbyqxmd.com/read/29661794/reciprocal-regulation-of-tead4-and-ccn2-for-the-trophectoderm-development-of-the-bovine-blastocyst
#3
Hiroki Akizawa, Ken Kobayashi, Hanako Bai, Masashi Takahashi, Shinjiro Kagawa, Hiroaki Nagatomo, Manabu Kawahara
The first segregation at the blastocyst stage is the symmetry-breaking event to characterize two cell components; namely, inner cell mass (ICM) and trophectoderm (TE). TEA domain transcription factor 4 (TEAD4) is a well-known regulator to determine TE properties of blastomeres in rodent models. However, the roles of bovine TEAD4 in blastocyst development have been unclear. We here aimed to clarify the mechanisms underlining TE characterization by TEAD4 in bovine blastocysts. We first found that the TEAD4 mRNA expression level was greater in TE than in ICM, which was further supported by TEAD4 immunofluorescent staining...
April 16, 2018: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/29574063/connective-tissue-growth-factor-ctgf-from-basics-to-clinics
#4
REVIEW
Yasaman Ramazani, Noël Knops, Mohamed A Elmonem, Tri Q Nguyen, Fanny Oliveira Arcolino, Lambert van den Heuvel, Elena Levtchenko, Dirk Kuypers, Roel Goldschmeding
Connective tissue growth factor, also known as CCN2, is a cysteine-rich matricellular protein involved in the control of biological processes, such as cell proliferation, differentiation, adhesion and angiogenesis, as well as multiple pathologies, such as tumor development and tissue fibrosis. Here, we describe the molecular and biological characteristics of CTGF, its regulation and various functions in the spectrum of development and regeneration to fibrosis. We further outline the preclinical and clinical studies concerning compounds targeting CTGF in various pathologies with the focus on heart, lung, liver, kidney and solid organ transplantation...
March 21, 2018: Matrix Biology: Journal of the International Society for Matrix Biology
https://www.readbyqxmd.com/read/29506624/ccn3-a-key-matricellular-protein-distinctly-inhibits-tgf%C3%AE-1-mediated-smad1-5-8-signalling-in-human-podocyte-culture
#5
Tarunkumar Hemraj Madne, Mark Edward Carl Dockrell
Growth factors like TGFβ and CTGF (CCN2) plays a vital role in various cellular functions. TGFβ and CTGF are overexpressed in renal fibrosis. CTGF act as profibrotic stimuli to TGFβ. CCN3 is a member of CCN family which also comprises CCN1 (CYR61), CCN2 (CTGF), CCN4 (WISP-1), CCN5 (WISP-2) and CCN6 (WISP-3). CCN3 has been shown to antagonise CTGF. In this study, we investigated the role of CCN3 in TGFβ1-mediated signalling in human podocytes culture. This study describes the novel function of CCN3 in regulation of TGFβ1 mediated non-canonical Smad signalling in human podocytes culture...
February 28, 2018: Cellular and Molecular Biology
https://www.readbyqxmd.com/read/29411334/regulation-and-bioactivity-of-the-ccn-family-of-genes-and-proteins-in-obesity-and-diabetes
#6
REVIEW
Stephen M Twigg
Across the years the CCNs have been increasingly implicated in the development of obesity, diabetes and its complications. Evidence for this is currently derived from their dysregulation in key metabolic pathological states in humans, animal and in vitro models, and also pre-clinical effects of their bioactivities. CCN2 is the best studied in this disease process and the other CCNs are yet to be better defined. Key steps where CCNs may play a pathogenic metabolic role include: (i) obesity and insulin resistance, where CCN2 inhibits fat cell differentiation in vitro and CCN3 may induce obesity and insulin resistance; (ii) elevated blood glucose levels to diabetes mellitus onset, where CCN2 may contribute to pancreatic beta cell and islet function; and (iii) in diabetes complications, such as nephropathy, retinopathy, liver disease (NAFLD/NASH), CVD and diabetes with heart failure...
March 2018: Journal of Cell Communication and Signaling
https://www.readbyqxmd.com/read/29382658/plasma-connective-tissue-growth-factor-ctgf-ccn2-levels-predict-myocardial-infarction-in-the-veterans-affairs-diabetes-trial-vadt-cohort
#7
Kelly J Hunt, Miran A Jaffa, Sara M Garrett, Deirdre K Luttrell, Kenneth E Lipson, Maria F Lopes-Virella, Louis M Luttrell, Ayad A Jaffa
OBJECTIVE: Connective tissue growth factor (CTGF), also known as CCN2, is a potent chemotactic and extracellular matrix-inducing matricellular protein that has been implicated in progression of inflammatory and fibroproliferative disorders. An emerging role of CTGF/CCN2 is that of a prosclerotic factor implicated in the development of cardiac disease. Our objective was to determine the role of CTGF/CCN2 as a predictor of cardiovascular events in type 2 diabetes in the Veterans Affairs Diabetes Trial (VADT) cohort...
April 2018: Diabetes Care
https://www.readbyqxmd.com/read/29351412/expression-of-ctgf-ccn2-in-response-to-lpa-is-stimulated-by-fibrotic-extracellular-matrix-via-the-integrin-fak-axis
#8
Camilo Riquelme-Guzmán, Osvaldo Contreras, Enrique Brandan
Fibrosis is a common feature of several chronic diseases and is characterized by exacerbated accumulation of ECM. An understanding of the cellular and molecular mechanisms involved in the development of this condition is crucial for designing efficient treatments for those pathologies. Connective tissue growth factor (CTGF/CCN2) is a pleiotropic protein with strong profibrotic activity. In this report, we present experimental evidence showing that ECM stimulates the synthesis of CTGF in response to lysophosphatidic acid (LPA)...
April 1, 2018: American Journal of Physiology. Cell Physiology
https://www.readbyqxmd.com/read/29310804/the-cytoskeletal-network-regulates-expression-of-the-profibrotic-genes-pai-1-and-ctgf-in-vascular-smooth-muscle-cells
#9
Rohan Samarakoon, Paul J Higgins
Vascular smooth muscle cells (VSMCs) are subject to changing hemodynamic stimuli that alter cytoskeletal dynamics, cellular architecture, and structure-associated signal transduction. Tensional stress, force application, and structural perturbations are sensed by VSMCs and impact the physiological as well as pathophysiological responses of the vasculature. Microtubule-targeting drugs provide useful tools to analyze cytoskeletal-associated signaling pathways and their linkages to pathological outcomes. Architecture-based controls on a subset of profibrotic genes commonly expressed in vascular disease are highlighted by their frequent induction in mechanically manipulated cells and with associated changes in cytoskeletal dynamics...
2018: Advances in Pharmacology
https://www.readbyqxmd.com/read/29309923/dermal-fibroblast-to-myofibroblast-transition-sustained-by-%C3%AE-v%C3%A3-3-integrin-ilk-snail1-slug-signaling-is-a-common-feature-for-hypermobile-ehlers-danlos-syndrome-and-hypermobility-spectrum-disorders
#10
Nicoletta Zoppi, Nicola Chiarelli, Silvia Binetti, Marco Ritelli, Marina Colombi
Hypermobile Ehlers-Danlos syndrome (hEDS) is a heritable connective tissue disorder with unknown molecular basis mainly characterized by generalized joint hypermobility, joint instability complications, and minor skin changes. The phenotypic spectrum is broad and includes multiple associated symptoms shared with chronic inflammatory systemic diseases. The stricter criteria defined in the 2017 EDS nosology leave without an identity many individuals with symptomatic joint hypermobility and/or features of hEDS; for these patients, the term Hypermobility Spectrum Disorders (HSD) was introduced...
April 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29289685/tgf-%C3%AE-signaling-pathways-in-different-compartments-of-the-lower-airways-of-patients-with-stable-copd
#11
Antonino Di Stefano, Claudia Sangiorgi, Isabella Gnemmi, Paolo Casolari, Paola Brun, Fabio L M Ricciardolo, Marco Contoli, Alberto Papi, Pio Maniscalco, Paolo Ruggeri, Giuseppe Girbino, Francesco Cappello, Stelios Pavlides, Yike Guo, Kian Fan Chung, Peter J Barnes, Ian M Adcock, Bruno Balbi, Gaetano Caramori
BACKGROUND: The expression and localization of transforming growth factor-β (TGF-β) pathway proteins in different compartments of the lower airways of patients with stable COPD is unclear. We aimed to determine TGF-β pathway protein expression in patients with stable COPD. METHODS: The expression and localization of TGF-β pathway components was measured in the bronchial mucosa and peripheral lungs of patients with stable COPD (n = 44), control smokers with normal lung function (n = 24), and control nonsmoking subjects (n = 11) using immunohistochemical analysis...
December 28, 2017: Chest
https://www.readbyqxmd.com/read/29219182/the-emerging-role-of-hippo-signaling-pathway-in-regulating-osteoclast-formation
#12
REVIEW
Wanlei Yang, Weiqi Han, An Qin, Ziyi Wang, Jiake Xu, Yu Qian
A delicate balance between osteoblastic bone formation and osteoclastic bone resorption is crucial for bone homeostasis. This process is regulated by the Hippo signaling pathway including key regulatory molecules RASSF2, NF2, MST1/2, SAV1, LATS1/2, MOB1, YAP, and TAZ. It is well established that the Hippo signaling pathway plays an important part in regulating osteoblast differentiation, but its role in osteoclast formation and activation remains poorly understood. In this review, we discuss the emerging role of Hippo-signaling pathway in osteoclast formation and bone homeostasis...
June 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29198711/effects-of-connective-tissue-growth-factor-ctgf-ccn2-on-condylar-chondrocyte-proliferation-migration-maturation-differentiation-and-signalling-pathway
#13
Xin Xing, Zhi Li, Zili Yu, Gu Cheng, Dianqi Li, Zubing Li
CCN2, also known as connective tissue growth factor (CTGF), is a 38 kDa cysteine-rich extracellular matrix protein that regulates a sequence of cellular functions and participates in multiple complex biological processes, such as chondrogenesis and osteogenesis. In the present study, we provided the first evidence describing the physiological role of CCN2 in condylar chondrocyte proliferation, migration, maturation and differentiation. CCN2 was widely expressed throughout the whole layers of condylar cartilage and predominantly distributed in the proliferative zone...
January 1, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29179163/-the-role-of-osteocytes-in-bone-remodeling
#14
Takashi Nishida, Satoshi Kubota, Masaharu Takigawa
Bone remodeling has important roles in the functions of bone tissues, such as supporting the body and mineral storage. Osteocytes, which are the most abundant cells in bone tissues, detect the mechanical loading and regulate both bone formation by osteoblasts and bone resorption by osteoclasts. However, its mechanism is still unknown. In this review, we summarize how osteocytes detect mechanical stress and discuss the potential role of CCN2/CTGF as a novel bone remodeling factor produced by osteocytes.
2017: Clinical Calcium
https://www.readbyqxmd.com/read/29165602/deletion-of-connective-tissue-growth-factor-ameliorates-peritoneal-fibrosis-by-inhibiting-angiogenesis-and-inflammation
#15
Naohiro Toda, Kiyoshi Mori, Masato Kasahara, Kenichi Koga, Akira Ishii, Keita P Mori, Keisuke Osaki, Masashi Mukoyama, Motoko Yanagita, Hideki Yokoi
Background: Connective tissue growth factor (CTGF/CCN2) regulates the signalling of other growth factors and promotes fibrosis. CTGF is increased in mice and humans with peritoneal fibrosis. Inhibition of CTGF has not been examined as a potential therapeutic target for peritoneal fibrosis because systemic CTGF knockout mice die at the perinatal stage. Methods: To study the role of CTGF in peritoneal fibrosis of adult mice, we generated CTGF conditional knockout (cKO) mice by crossing CTGF floxed mice with RosaCreERT2 mice...
November 17, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29160908/connective-tissue-growth-factor-induces-renal-fibrosis-via-epidermal-growth-factor-receptor-activation
#16
Sandra Rayego-Mateos, José Luis Morgado-Pascual, Raúl R Rodrigues-Diez, Raquel Rodrigues-Diez, Lucas L Falke, Sergio Mezzano, Alberto Ortiz, Jesús Egido, Roel Goldschmeding, Marta Ruiz-Ortega
Connective tissue growth factor (CCN2/CTGF) is a matricellular protein that is overexpressed in progressive human renal diseases, mainly in fibrotic areas. In vitro studies have demonstrated that CCN2 regulates the production of extracellular matrix (ECM) proteins and epithelial-mesenchymal transition (EMT), and could therefore contribute to renal fibrosis. CCN2 blockade ameliorates experimental renal damage, including diminution of ECM accumulation. We have reported that CCN2 and its C-terminal degradation product CCN2(IV) bind to epidermal growth factor receptor (EGFR) to modulate renal inflammation...
February 2018: Journal of Pathology
https://www.readbyqxmd.com/read/29145495/regulatory-mechanism-of-ccn2-production-by-serotonin-5-ht-via-5-ht2a-and-5-ht2b-receptors-in-chondrocytes
#17
Ayaka Hori, Takashi Nishida, Shogo Takashiba, Satoshi Kubota, Masaharu Takigawa
Serotonin (5-hydroxytryptamine: 5-HT) is recognized as a neurotransmitter in the central nerve system and as a regulator of systemic blood pressure in the peripheral tissues. Recently, it was reported that 5-HT2 receptors (5-HT2Rs) were expressed in cartilage tissues lacking both vessels and neurons, suggesting possible novel functions of 5-HT during cartilage development and regeneration. Our previous data indicated that CCN family protein 2/connective tissue growth factor (CCN2/CTGF) plays a central role in cartilage development and regeneration...
2017: PloS One
https://www.readbyqxmd.com/read/29129024/metabolic-regulation-of-the-ccn-family-genes-by-glycolysis-in-chondrocytes
#18
Sho Akashi, Takashi Nishida, Abdellatif El-Seoudi, Masaharu Takigawa, Seiji Iida, Satoshi Kubota
The CCN family consists of 6 genes in the mammalian genome and produces multifunctional proteins involved in a variety of biological processes. Recent reports indicate the profound roles of CCN2 in energy metabolism in chondrocytes, and Ccn2 deficiency is known to alter the expression of 2 other family members including Ccn3. However, almost nothing is known concerning the regulation of the CCN family genes by energy metabolism. In order to gain insight into this critical issue, we initially and comprehensively evaluated the effect of inhibition of glycolysis on the expression of all of the CCN family genes in chondrocytic cells...
March 2018: Journal of Cell Communication and Signaling
https://www.readbyqxmd.com/read/29110248/why-target-the-tumor-stroma-in-melanoma
#19
REVIEW
James Hutchenreuther, Andrew Leask
Melanoma metastasis is fatal. Melanoma cells are often characterized by an activated extracellular signal-regulated kinase (ERK) pathway downstream of mutations in BRAF. Therapies targeting these BRAF mutations are useful for a while; however, patients ultimately develop resistance to these therapies. Recent evidence suggests that this resistance occurs when tumor cells leave their microenvironment and migrate on a stiff, activated tumor stroma; that is, this resistance is linked to the presence of an extracellular matrix reminiscent of a fibrotic micronvironment...
March 2018: Journal of Cell Communication and Signaling
https://www.readbyqxmd.com/read/29106524/cardiac-myocyte-%C3%AE-3-adrenergic-receptors-prevent-myocardial-fibrosis-by-modulating-oxidant-stress-dependent-paracrine-signaling
#20
Nerea Hermida, Lauriane Michel, Hrag Esfahani, Emilie Dubois-Deruy, Joanna Hammond, Caroline Bouzin, Andreas Markl, Henri Colin, Anne Van Steenbergen, Christophe De Meester, Christophe Beauloye, Sandrine Horman, Xiaoke Yin, Manuel Mayr, Jean-Luc Balligand
Aims: Human and mouse cardiac beta3-adrenergic receptors (beta3AR) exert antipathetic effects to those of beta1-2AR stimulation. We examined their role in modulating myocardial remodelling, particularly fibrosis in response to haemodynamic stress. Methods and results: Mice with cardiac myocyte-specific expression of beta3AR (ADRB3-tg) or tamoxifen-inducible homozygous deletion (c-Adrb3-ko, with loxP-targeted Adrb3) were submitted to transaortic constriction. A superfusion assay was used for proteomic analysis of paracrine mediators between beta3AR-expressing cardiac myocytes and cardiac fibroblasts cultured separately...
March 7, 2018: European Heart Journal
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