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https://www.readbyqxmd.com/read/29788434/a-novel-mouse-model-of-testicular-granulosa-cell-tumors
#1
Xin Fang, Nan Ni, Yang Gao, David F Vincent, Laurent Bartholin, Qinglei Li
STUDY QUESTION: What is the role of dysregulated transforming growth factor beta (TGFB) signaling in the development of sex cord-stromal tumors in the testis? SUMMARY ANSWER: Overactivation of TGFB signaling results in the development of testicular tumors resembling granulosa cell tumors (GrCTs). WHAT IS KNOWN ALREADY: In an earlier study, we demonstrated that constitutively active TGFB receptor 1 (TGFBR1) in ovarian somatic cells promotes the development of ovarian GrCTs...
May 21, 2018: Molecular Human Reproduction
https://www.readbyqxmd.com/read/29768622/single-nucleotide-polymorphisms-of-cytokine-related-genes-and-association-with-clinical-outcome-in-a-chagas-disease-case-control-study-from-brazil
#2
Lucia Elena Alvarado-Arnez, Angelica Martins Batista, Silvia Marinho Alves, Gloria Melo, Virgínia Maria Barros de Lorena, Cynthia C Cardoso, Isabela Resende Pereira, Cristina Carrazzone, Antonio G Pacheco, Wilson Oliveira, Milton Ozório Moraes, Joseli Lannes-Vieira
BACKGROUND: The severity of chronic chagasic cardiomyopathy (CCC), the most frequent clinical outcome of Chagas disease (CD), has been associated with cytokine-enriched heart tissue inflammation, and high serum levels of transforming growth factor (TGFβ), interferon-gamma (IFNγ), and tumour necrosis factor (TNF). Conversely, increased interleukin (IL)-10 serum concentrations have been associated with asymptomatic CD. Cytokines and cytokine-related gene polymorphisms may control cytokine expression and have been proposed to contribute to CCC outcomes...
May 14, 2018: Memórias do Instituto Oswaldo Cruz
https://www.readbyqxmd.com/read/29709672/of-pleiotropy-and-trajectories-does-the-tgfb-pathway-link-childhood-asthma-and-copd
#3
Avery DeVries, Donata Vercelli
The study of developmental trajectories is where epigenetics truly shines. The "epi" in epi-genetics captures the fact that although epigenetic processes also preside over the maintenance and termination of gene expression, the unfolding and remodeling of chromatin architecture are especially critical to prepare genes for regulated transcription. These properties imply being on a path, a trajectory to events that will occur later on thanks to epigenetic programming. Thus, epigenetics is about timed and timely events...
April 27, 2018: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29679615/novel-protective-role-of-kallistatin-in-obesity-by-limiting-adipose-tissue-low-grade-inflammation-and-oxidative-stress
#4
Gema Frühbeck, Javier Gómez-Ambrosi, Amaia Rodríguez, Beatriz Ramírez, Víctor Valentí, Rafael Moncada, Sara Becerril, Xabier Unamuno, Camilo Silva, Javier Salvador, Victoria Catalán
OBJECTIVE: Kallistatin plays an important role in the inhibition of inflammation, oxidative stress, fibrosis and angiogenesis. We aimed to determine the impact of kallistatin on obesity and its associated metabolic alterations as well as its role in adipocyte inflammation and oxidative stress. METHODS: Samples obtained from 95 subjects were used in a case-control study. Circulating concentrations and expression levels of kallistatin as well as key inflammation, oxidative stress and extracellular matrix remodelling-related genes were analyzed...
April 18, 2018: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/29658787/sodium-phenylbutyrate-inhibits-tumor-growth-and-the-epithelial-mesenchymal-transition-of-oral-squamous-cell-carcinoma-in-vitro-and-in-vivo
#5
Kun Qian, Laiyu Sun, Guoqing Zhou, Haixia Ge, Yue Meng, Jingfen Li, Xiao Li, Xinqiang Fang
Sodium phenylbutyrate (SPB) as a salt of 4-phenylbutyric acid (4-PBA) has been reported to be an ammonia scavenger, histone deacetylase inhibitor, and an endoplasmic reticulum stress inhibitor in various diseases, including neurological diseases, inflammatory disorders, and carcinogenesis. Although phenylbutyrate showed effective antitumor properties in many cancers, its role in oral squamous cell carcinoma (OSCC) remains further characterized. Thus, the OSCC cell lines CAL27, HSC3, and SCC4 were treated with a series of doses of SPB for different times...
April 16, 2018: Cancer Biotherapy & Radiopharmaceuticals
https://www.readbyqxmd.com/read/29614203/changes-in-the-expression-of-matrix-extracellular-genes-and-tgfb-family-members-in-rotator-cuff-tears
#6
Paulo Santoro Belangero, Eduardo Antônio Figueiredo, Carina Cohen, Felipe de Seixas Alves, Wânia Hiromi Yanaguizawa, Marília Cardoso Smith, Carlos Vicente Andreoli, Alberto de Castro Pochini, Maria Teresa de Seixas Alves, Benno Ejnisman, Moises Cohen, Mariana Ferreira Leal
Lack of synthesis of extracellular matrix compounds may contribute to degeneration of the tendons. Thus, we aimed to evaluate the expression of extracellular matrix and TGFB family members in ruptured and non-ruptured tendons of the rotator cuff, as well as the effect of clinical factors on gene expression in tendon samples, and the relationship between histological findings and altered gene expression. Injured and non-injured supraspinatus tendon samples and subscapular non-injured tendon samples were collected from 38 patients with rotator cuff tears...
April 3, 2018: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/29596569/interferon-gamma-inhibits-seminal-plasma-induction-of-colony-stimulating-factor-2-in-mouse-and-human-reproductive-tract-epithelial-cells
#7
David J Sharkey, Danielle J Glynn, John E Schjenken, Kelton P Tremellen, Sarah A Robertson
Seminal fluid interacts with the female reproductive tract to initiate a permissive immune response that facilitates embryo implantation and pregnancy success. The immune-regulatory cytokine interferon-γ (IFNG), which can be elevated in seminal plasma and is associated with reduced fertility. Here we investigated how IFNG influences the female immune response to seminal fluid. In human Ect1 cervical epithelial cells, IFNG added at physiologically relevant concentrations substantially impaired seminal plasma-induced synthesis of key cytokines colony stimulating factor 2 (CSF2) and interleukin-6 (IL6)...
March 27, 2018: Biology of Reproduction
https://www.readbyqxmd.com/read/29581525/innate-immune-system-activation-in-zebrafish-and-cellular-models-of-diamond-blackfan-anemia
#8
Nadia Danilova, Mark Wilkes, Elena Bibikova, Min-Young Youn, Kathleen M Sakamoto, Shuo Lin
Deficiency of ribosomal proteins (RPs) leads to Diamond Blackfan Anemia (DBA) associated with anemia, congenital defects, and cancer. While p53 activation is responsible for many features of DBA, the role of immune system is less defined. The Innate immune system can be activated by endogenous nucleic acids from non-processed pre-rRNAs, DNA damage, and apoptosis that occurs in DBA. Recognition by toll like receptors (TLRs) and Mda5-like sensors induces interferons (IFNs) and inflammation. Dying cells can also activate complement system...
March 26, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29541918/tumour-compartment-transcriptomics-demonstrates-the-activation-of-inflammatory-and-odontogenic-programmes-in-human-adamantinomatous-craniopharyngioma-and-identifies-the-mapk-erk-pathway-as-a-novel-therapeutic-target
#9
John R Apps, Gabriela Carreno, Jose Mario Gonzalez-Meljem, Scott Haston, Romain Guiho, Julie E Cooper, Saba Manshaei, Nital Jani, Annett Hölsken, Benedetta Pettorini, Robert J Beynon, Deborah M Simpson, Helen C Fraser, Ying Hong, Shirleen Hallang, Thomas J Stone, Alex Virasami, Andrew M Donson, David Jones, Kristian Aquilina, Helen Spoudeas, Abhijit R Joshi, Richard Grundy, Lisa C D Storer, Márta Korbonits, David A Hilton, Kyoko Tossell, Selvam Thavaraj, Mark A Ungless, Jesus Gil, Rolf Buslei, Todd Hankinson, Darren Hargrave, Colin Goding, Cynthia L Andoniadou, Paul Brogan, Thomas S Jacques, Hywel J Williams, Juan Pedro Martinez-Barbera
Adamantinomatous craniopharyngiomas (ACPs) are clinically challenging tumours, the majority of which have activating mutations in CTNNB1. They are histologically complex, showing cystic and solid components, the latter comprised of different morphological cell types (e.g. β-catenin-accumulating cluster cells and palisading epithelium), surrounded by a florid glial reaction with immune cells. Here, we have carried out RNA sequencing on 18 ACP samples and integrated these data with an existing ACP transcriptomic dataset...
May 2018: Acta Neuropathologica
https://www.readbyqxmd.com/read/29505748/neuronal-transforming-growth-factor-beta-signaling-via-smad3-contributes-to-pain-in-animal-models-of-chronic-pancreatitis
#10
Liansheng Liu, Yaohui Zhu, Michaël Noë, Qian Li, Pankaj Jay Pasricha
BACKGROUND & AIMS: Chronic pancreatitis (CP) is characterized by pancreatic inflammation and fibrosis, associated with increased pancreatic expression of transforming growth factor beta (TGFB). It is not clear how these might contribute to pain. We investigated whether TGFB signaling via SMAD induces sensitization of pancreatic sensory neurons to increase nociception. METHODS: CP was induced in Sprague-Dawley rats by infusion of trinitrobenzene sulfonic acid; some rats were given intrathecal infusions of TGFB1...
March 2, 2018: Gastroenterology
https://www.readbyqxmd.com/read/29499125/rankl-triggers-treg-mediated-immunoregulation-in-inflammatory-osteolysis
#11
C F Francisconi, A E Vieira, M C S Azevedo, A P Tabanez, A C Fonseca, A P F Trombone, A Letra, R M Silva, C S Sfeir, S R Little, G P Garlet
The chronic inflammatory immune response triggered by the infection of the tooth root canal system results in the local upregulation of RANKL, resulting in periapical bone loss. While RANKL has a well-characterized role in the control of bone homeostasis/pathology, it can play important roles in the regulation of the immune system, although its possible immunoregulatory role in infectious inflammatory osteolytic conditions remains largely unknown. Here, we used a mouse model of infectious inflammatory periapical lesions subjected to continuous or transitory anti-RANKL inhibition, followed by the analysis of lesion outcome and multiple host response parameters...
March 1, 2018: Journal of Dental Research
https://www.readbyqxmd.com/read/29477012/treg-and-nk-cells-related-cytokines-are-associated-with-deep-rectosigmoid-endometriosis-and-clinical-symptoms-related-to-the-disease
#12
Bárbara Yasmin Gueuvoghlanian-Silva, Patrick Bellelis, Denise Frediani Barbeiro, Camila Hernandes, Sergio Podgaec
The aim of this study was to evaluate Treg and NK cells related cytokines in deep infiltrating endometriosis lesions and its relationship with clinical symptoms of the disease. mRNA expression of Transforming Growth Factor Beta (TGFB), Interleukin (IL)10, Interferon Gamma (IFNG), IL7, and IL15 was analyzed by Real-Time PCR in eutopic endometrium and rectosigmoid lesions from 11 women with deep infiltrating endometriosis and in eutopic endometrium from 11 healthy women. IL10, IFNG, and IL7 expression was significantly higher in endometriotic bowel lesions than in eutopic endometrium from women with endometriosis...
April 2018: Journal of Reproductive Immunology
https://www.readbyqxmd.com/read/29402900/canagliflozin-an-sglt2-inhibitor-attenuates-the-development-of-hepatocellular-carcinoma-in-a-mouse-model-of-human-nash
#13
Kumiko Shiba, Kyoichiro Tsuchiya, Chikara Komiya, Yasutaka Miyachi, Kentaro Mori, Noriko Shimazu, Shinobu Yamaguchi, Naomi Ogasawara, Makoto Katoh, Michiko Itoh, Takayoshi Suganami, Yoshihiro Ogawa
Sodium glucose cotransporter 2 (SGLT2) inhibitors, an antidiabetic drug, promotes urinary excretion of glucose by blocking its reabsorption in the renal proximal tubules. It is unclear whether SGLT2 inhibition could attenuate nonalcoholic steatohepatitis (NASH) and NASH-associated hepatocellular carcinoma. We examined the preventive effects of an SGLT2 inhibitor canagliflozin (CANA) in Western diet (WD)-fed melanocortin 4 receptor-deficient (MC4R-KO) mice, a mouse model of human NASH. An eight-week CANA treatment attenuated hepatic steatosis in WD-fed MC4R-KO mice, with increased epididymal fat mass without inflammatory changes...
February 5, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29363326/wnt-signaling-is-required-for-peritoneal-membrane-angiogenesis
#14
Manreet Kaur Padwal, Genyang Cheng, Limin Liu, Felix J Boivin, Azim Gangji, Kenneth Scott Brimble, Darren Bridgewater, Peter J Margetts
The WNT signaling pathway is involved in wound healing and fibrosis. We evaluated the WNT signaling pathway in peritoneal membrane injury. We assessed WNT1 protein expression in the peritoneal effluents of 54 stable peritoneal dialysis (PD) patients and WNT-related gene expression in ex vivo mesothelial cell cultures from 21 PD patients. In a transforming growth factor beta (TGFB) mediated animal model of peritoneal fibrosis, we evaluated regulation of the WNT pathway and the effect of WNT inhibition on peritoneal fibrosis and angiogenesis...
January 24, 2018: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/29349532/a-novel-approach-in-treatment-of-tuberculosis-by-targeting-drugs-to-infected-macrophages-using-biodegradable-nanoparticles
#15
REVIEW
Shivangi, Laxman S Meena
Mycobacterium tuberculosis, the causative agent of tuberculosis is now causing death of more than 10 million people. Because of the development of drug-resistant TB, drug delivery to the infected site through nanoparticle had been studied for long time. Nanoparticles indicate different sorts of association with the natural particles of the body. Nanoparticles can be used as controlled or specific drug delivery system. It can be through temporal controlled or can be distribution controlled. Glucose polymer-based nanoparticles might play an important role as drug delivery system in case of targeted drug delivery in the infected site of the body or in infected macrophages, as they are biodegradable so there should not be any side effects of these particles in the body and also they show very slow immune response...
January 19, 2018: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/29343616/rapamycin-activates-tgf-receptor-independently-of-its-ligand-implications-for-endothelial-dysfunction
#16
Ayumi A Miyakawa, Thais Girao-Silva, Jose E Krieger, Elazer R Edelman
Rapamycin, the macrolide immunosuppressant and active pharmaceutic in drug-eluting stents (DES), has a well-recognized anti-proliferative action that involves inhibition of the mTOR pathway after binding to the cytosolic protein FKBP12. TGF receptor-type I (TGFRI) spontaneous activation is inhibited by the association with FKBP12. We hypothesized that rapamycin, in addition to inhibition of mTOR signaling, activates TGFRI independent of TGFb. Human umbilical vein endothelial cells (HUVEC) were treated with rapamycin (10nmoL/L) and/or TGF-b RI kinase inhibitor (TGFRIi, 100nmoL/L) for 24 hours...
January 17, 2018: Clinical Science (1979-)
https://www.readbyqxmd.com/read/29284776/the-tgf-beta-smad-pathway-is-inactivated-in-cronic-lymphocytic-leukemia-cells
#17
A Matveeva, L Kovalevska, I Kholodnyuk, T Ivanivskaya, E Kashuba
AIM: To study the status of the tumor growth factor beta (TGFB) pathway in chronic lymphocytic leukemia (CLL) cells and to uncover molecular details underlying CLL cell genesis. OBJECTS AND METHODS: The study was conducted on peripheral blood samples of patients with CLL using the following methods: RNA isolation, analysis of expression of transcription factors using RT2 profiler assay, bioinformatics analysis of publicly available data bases on expression. RESULTS: We have shown that the TGFB - SMAD canonical pathway is not active in CLL cells...
December 2017: Experimental Oncology
https://www.readbyqxmd.com/read/29251609/-the-role-of-micro-rna-in-the-regulation-of-signal-pathways-in-gliomas
#18
REVIEW
O I Kit, D I Vodolazhsky, E E Rostorguev, D H Porksheyan, S B Panina
Gliomas are invasive brain tumors with high rates of recurrence and mortality. Glioblastoma multiforme (GBM) is the most deadly form of glioma with nearly 100% rate of recurrence and unfavorable prognosis in patients. Micro-RNAs (miR) are the class of wide-spread short non-coding RNAs that inhibit translation via binding to the mRNA of target genes. The aim of the present review is to analyze recent studies and experimental results concerning aberrant expression profiles of miR, which target components of the signaling pathways Hedgehog, Notch, Wnt, EGFR, TGFb, HIF1a in glioma/glioblastoma...
November 2017: Biomedit︠s︡inskai︠a︡ Khimii︠a︡
https://www.readbyqxmd.com/read/29221447/disruption-of-postnatal-folliculogenesis-and-development-of-ovarian-tumor-in-a-mouse-model-with-aberrant-transforming-growth-factor-beta-signaling
#19
Yang Gao, Xin Fang, David F Vincent, David W Threadgill, Laurent Bartholin, Qinglei Li
BACKGROUND: Transforming growth factor beta (TGFB) superfamily signaling is implicated in the development of sex cord-stromal tumors, a category of poorly defined gonadal tumors. The aim of this study was to determine potential effects of dysregulated TGFB signaling in the ovary using Cre recombinase driven by growth differentiation factor 9 (Gdf9) promoter known to be expressed in oocytes. METHODS: A mouse model containing constitutively active TGFBR1 (TGFBR1CA ) using Gdf9-iCre (termed TGFBR1-CAG9Cre ) was generated...
December 8, 2017: Reproductive Biology and Endocrinology: RB&E
https://www.readbyqxmd.com/read/29218085/identification-and-differential-expression-of-micrornas-in-1-25-dihydroxyvitamin-d3-induced-osteogenic-differentiation-of-human-adipose-derived-mesenchymal-stem-cells
#20
Huijie Gu, Jun Xu, Zhongyue Huang, Liang Wu, Kaifeng Zhou, Yiming Zhang, Jiong Chen, Jiangni Xia, Xiaofan Yin
The aim of this study was to identify specific microRNAs (miRNAs) and their regulatory roles in the process of 1, 25-dihydroxyvitamin D3-induced (VD3-induced) osteogenic differentiation of human adipose-derived Mesenchymal stem cells (hAMSCs). The differentially expressed miRNAs in VD3-induced hAMSCs was examined. The putative target genes of these miRNAs were predicted. A total of 76 conserved miRNAs, including 18 miRNAs were significantly up-regulated and 58 miRNAs were significantly downregulated, and significantly differentially expressed between the two samples...
2017: American Journal of Translational Research
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