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https://www.readbyqxmd.com/read/28742795/cancer-associated-fibroblasts-promote-bone-invasion-in-oral-squamous-cell-carcinoma
#1
A A Elmusrati, A E Pilborough, S A Khurram, D W Lambert
BACKGROUND: The molecular mechanisms involved in the invasion of bone by oral squamous cell carcinomas (OSCC) are poorly understood, and little is known about the role of cancer-associated fibroblasts (CAF), the presence of which confers a poor prognosis. METHODS: Clinicopathological data from 277 OSCC cases involving bone resections were reviewed, and 32 cases thoroughly analysed histologically. Immunohistochemistry was used to examine αSMA, RANKL and OPG. Western blotting and qPCR were used to assess myofibroblast (CAF-like) differentiation, RANKL and OPG expression in vitro, and RANKL secretion was analysed by ELISA...
July 25, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28741727/placental-pericytes-and-cytomegalovirus-infectivity-implications-for-hcmv-placental-pathology-and-congenital-disease
#2
David M Aronoff, Hernan Correa, Lisa M Rogers, Ravit Arav-Boger, Donald J Alcendor
PROBLEM: Placental pericytes are essential for placental microvascular function, stability, and integrity. Mechanisms of human cytomegalovirus (HCMV) pathogenesis incorporating placental pericytes are unknown. METHOD OF STUDY: HCMV-infected placental tissue was stained by dual-labeled immunohistochemistry. Primary placental pericytes, cytotrophoblasts, and villous fibroblasts were exposed to HCMV; and infectivity was analyzed by microscopy and immunofluorescence...
July 25, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28734678/improvement-of-adipose-tissue-derived-cells-by-low-energy-extracorporeal-shock-wave-therapy
#3
Eleni Priglinger, Christina M A P Schuh, Carolin Steffenhagen, Christoph Wurzer, Julia Maier, Sylvia Nuernberger, Wolfgang Holnthoner, Christiane Fuchs, Susanne Suessner, Dominik Rünzler, Heinz Redl, Susanne Wolbank
BACKGROUND: Cell-based therapies with autologous adipose tissue-derived cells have shown great potential in several clinical studies in the last decades. The majority of these studies have been using the stromal vascular fraction (SVF), a heterogeneous mixture of fibroblasts, lymphocytes, monocytes/macrophages, endothelial cells, endothelial progenitor cells, pericytes and adipose-derived stromal/stem cells (ASC) among others. Although possible clinical applications of autologous adipose tissue-derived cells are manifold, they are limited by insufficient uniformity in cell identity and regenerative potency...
July 19, 2017: Cytotherapy
https://www.readbyqxmd.com/read/28734227/continuous-delivery-of-neutralizing-antibodies-elevate-ccl2-levels-in-mice-bearing-mcf10ca1d-breast-tumor-xenografts
#4
Min Yao, Curtis Smart, Qingting Hu, Nikki Cheng
Chemokines are small soluble molecules that play critical roles in wound healing, infection, and cancer progression. In particular, overexpression of the C-C motif chemokine ligand 2 (CCL2) in multiple cancer types correlates with poor patient prognosis. Animal studies have shown that CCL2 signals to macrophages and breast cancer cells to promote tumor growth, invasion, and metastasis, indicating that CCL2 is a promising therapeutic target. However, the effectiveness of human-specific neutralizing antibodies has not been fully evaluated...
July 19, 2017: Translational Oncology
https://www.readbyqxmd.com/read/28733353/use-of-proteomics-to-investigate-kidney-function-decline-over-5-years
#5
Axel C Carlsson, Erik Ingelsson, Johan Sundström, Juan Jesus Carrero, Stefan Gustafsson, Tobias Feldreich, Markus Stenemo, Anders Larsson, Lars Lind, Johan Ärnlöv
BACKGROUND AND OBJECTIVES: Using a discovery/replication approach, we investigated associations between a multiplex panel of 80 circulating proteins associated with cardiovascular pathology or inflammation, and eGFR decline per year and CKD incidence. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: We used two cohorts, the Prospective Investigation of the Vasculature in Uppsala Seniors Study (PIVUS; n=687, mean age of 70 years, 51% women) and the Uppsala Longitudinal Study of Adult Men (ULSAM; n=360 men, mean age of 78 years), with 5-year follow-up data on eGFR...
July 21, 2017: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/28730976/salmonella-intracellular-lifestyles-and-their-impact-on-host-to-host-transmission
#6
M Graciela Pucciarelli, Francisco García-Del Portillo
More than a century ago, infections by Salmonella were already associated with foodborne enteric diseases with high morbidity in humans and cattle. Intestinal inflammation and diarrhea are hallmarks of infections caused by nontyphoidal Salmonella serovars, and these pathologies facilitate pathogen transmission to the environment. In those early times, physicians and microbiologists also realized that typhoid and paratyphoid fever caused by some Salmonella serovars could be transmitted by "carriers," individuals outwardly healthy or at most suffering from some minor chronic complaint...
July 2017: Microbiology Spectrum
https://www.readbyqxmd.com/read/28729000/airway-microbiota-signals-anabolic-and-catabolic-remodeling-in-the-transplanted-lung
#7
Stéphane Mouraux, Eric Bernasconi, Céline Pattaroni, Angela Koutsokera, John-David Aubert, Johanna Claustre, Christophe Pison, Pierre-Joseph Royer, Antoine Magnan, Romain Kessler, Christian Benden, Paola M Soccal, Benjamin J Marsland, Laurent P Nicod
BACKGROUND: Homeostatic turnover of the extracellular matrix conditions the structure and function of the healthy lung. In lung transplantation, long-term management remains limited by Chronic Lung Allograft Dysfunction (CLAD), an umbrella term used for a heterogeneous entity ultimately associated with pathological airway and/or parenchyma remodeling. OBJECTIVE: To assess whether the local cross-talk between the pulmonary microbiota and host cells is a key determinant in the control of lower airway remodeling post-transplantation...
July 17, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28728298/-the-prognostic-analysis-of-hepatocellular-carcinoma-based-on-the-tumor-neo-vessels-macrophages-and-%C3%AE-sma-in-tumor-microenvironment
#8
M Fang, J P Yuan, L L Liu, G P Cheng, H J Ying, Y M Chen, M Chen
Objective: To analyze the quantitative expression and prognostic significance of tumor neo-vessels, macrophages and fibroblasts in tumor microenvironment of hepatocellular carcinoma (HCC). Methods: The clinic-pathological features and tissue samples for 101 HCC cases were collected. Immunohistochemistry was used to stain the tumor neo-vessels, macrophages and fibroblasts on tumor tissue. The distribution results and quantitative data of above key components were acquired by inverted microscopy equipped with CRi Nuance multispectral analysis system...
July 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/28726976/absence-of-transforming-growth-factor-beta-1-in-murine-platelets-reduces-neointima-formation-without-affecting-arterial-thrombosis
#9
Katrin Schaefer, Eva Schütz, Magdalena L Bochenek, Dennis R Riehl, Markus Bosmann, Thomas Münzel, Stavros Konstantinides, Katrin Schäfer
Platelet degranulation at the site of vascular injury prevents bleeding and may affect the chronic vascular wound healing response. Transforming Growth Factor (TGF)-β1 is a major component of platelet α-granules known to accumulating in thrombi. It was our aim to determine the role of TGFβ1 released from activated platelets for neointima formation following arterial injury and thrombosis. Mice with platelet-specific deletion of TGFβ1 (Plt.TGFβ-KO) underwent carotid artery injury. Immunoassays confirmed the absence of active TGFβ1 in platelet releasates and plasma of Plt...
July 20, 2017: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/28726666/-pathomorphological-changes-under-latent-mastoiditis
#10
Kh Chitadze, T Jorbenadze, M Adamia
In our opinion it is caused by incomplete awareness of the distribution of pathological process and the character of morphological changes in the patients. In this regard, we studied structural changes in the soft and bone tissue taken from various cavities of the middle ear system. Operating material was formed in paraffin after the fixation and proper processing. We proceed with decalcification of bone tissues in 15-20% nitric acid. We painted 5-6 mm thick peels prepared on the rotating microtome with hematoxylin and eosin...
June 2017: Georgian Medical News
https://www.readbyqxmd.com/read/28724439/genetic-deficiency-of-wnt5a-diminishes-disease-severity-in-a-murine-model-of-rheumatoid-arthritis
#11
Susan MacLauchlan, Maria A Zuriaga, José J Fuster, Carla M Cuda, Jennifer Jonason, Fernanda Behzadi, Jennifer Parker Duffen, G Kenneth Haines, Tamar Aprahamian, Harris Perlman, Kenneth Walsh
BACKGROUND: Rheumatoid arthritis (RA) is a common autoimmune disease characterized by chronic inflammation of the joints, leading to bone erosion and joint dysfunction. Despite the recent successes of disease-modifying anti-rheumatic drugs (DMARDs), there is still clinical need for understanding the development and molecular etiology of RA. Wnts are developmental morphogens whose roles in adult pathology are poorly characterized. Wnt5a is a member of the non-canonical family of Wnts that modulates a wide range of cell processes, including differentiation, migration, and inflammation...
July 19, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28721450/smad3-and-bmal1-regulate-p21-and-s100a4-expression-in-myocardial-stromal-fibroblasts-via-tnf-%C3%AE
#12
Fuyuki Sato, Akira Kohsaka, Kana Takahashi, Saki Otao, Yusuke Kitada, Yoshiyuki Iwasaki, Yasuteru Muragaki
Bmal1, a clock gene, is associated with depression, hypertrophy, metabolic syndrome and diabetes. Smad3, which is involved in the TGF-β signaling pathway, plays an important role in the regulation of tumor progression, fibrosis, obesity and diabetes. Our previous report showed that Smad3 has circadian expression in mouse livers. In the current study, we focused on the heart, especially on the myocardial stromal fibroblasts because the roles of Bmal1 and Smad3 in this tissue are poorly understood. Bmal1 and Smad3 have circadian expression in mouse hearts, and their circadian expression patterns were similar...
July 18, 2017: Histochemistry and Cell Biology
https://www.readbyqxmd.com/read/28719196/thermoresponsive-elastin-b-collagen-like-peptide-bioconjugate-nanovesicles-for-targeted-drug-delivery-to-collagen-containing-matrices
#13
Tianzhi Luo, Michael A David, Lucas C Dunshee, Rebecca A Scott, Morgan A Urello, Christopher Price, Kristi L Kiick
Over the past few decades, (poly)peptide block copolymers have been widely employed in generating well-defined nanostructures as vehicles for targeted drug delivery applications. We previously reported the assembly of thermoresponsive nanovesicles from an elastin-b-collagen like peptide (ELP-CLP). The nanoparticles were observed to dissociate at elevated temperatures, despite the LCST-like behavior of the tethered ELP domain, which is suggested to be triggered by the unfolding of the CLP domain. Here, the potential of using the nanoparticles as drug delivery vehicles for targeting collagen-containing matrices is evaluated...
July 18, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/28714933/macrophage-phenotypes-regulate-scar-formation-and-chronic-wound-healing
#14
REVIEW
Mark Hesketh, Katherine B Sahin, Zoe E West, Rachael Z Murray
Macrophages and inflammation play a beneficial role during wound repair with macrophages regulating a wide range of processes, such as removal of dead cells, debris and pathogens, through to extracellular matrix deposition re-vascularisation and wound re-epithelialisation. To perform this range of functions, these cells develop distinct phenotypes over the course of wound healing. They can present with a pro-inflammatory M1 phenotype, more often found in the early stages of repair, through to anti-inflammatory M2 phenotypes that are pro-repair in the latter stages of wound healing...
July 17, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28714000/circulating-levels-of-angiogenesis-related-growth-factors-in-breast-cancer-a-study-to-profile-proteins-responsible-for-tubule-formation
#15
Gemma A Barron, Marie Goua, Klaus W J Wahle, Giovanna Bermano
The present study exploited a versatile in vitro endothelial cell/fibroblast co-culture cell system to investigate the association between angiogenesis and breast cancer by comparing the capacity of plasma from women with breast cancer and age-matched controls, to influence tubule formation and modulate angiogenesis in vitro, and to identify plasma circulating factors which might be responsible. Plasma from women with breast cancer (n=8) (added on day 7 after co-culture establishment) significantly increased tubule formation by 57% (P<0...
July 11, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28707226/the-role-of-macrophage-polarization-on-fibroblast-behavior-an-in-vitro-investigation-on-titanium-surfaces
#16
Xuzhu Wang, Yulan Wang, Dieter D Bosshardt, Richard J Miron, Yufeng Zhang
OBJECTIVES: This study investigated the effect of smooth and rough titanium surface topographies on macrophage polarization and their influence on gingival fibroblast behavior cultured on titanium surfaces. MATERIALS AND METHODS: RAW 264.7 macrophages were seeded on smooth (pickled titanium (PT)) and rough Sand-blasted with Large grit particles followed by Acid-etching (SLA) titanium surfaces and first investigated for macrophage polarization towards tissue-inflammatory M1 macrophages or wound-healing M2 macrophages...
July 14, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28705316/cell-specific-pathways-supporting-persistent-fibrosis-in-heart-failure
#17
Stephen D Farris, Creighton Don, Deri Helterline, Christopher Costa, Tabitha Plummer, Susanne Steffes, Claudius Mahr, Nahush A Mokadam, April Stempien-Otero
BACKGROUND: Only limited data exist describing the histologic and noncardiomyocyte function of human myocardium in end-stage heart failure (HF). OBJECTIVES: The authors sought to determine changes in noncardiomyocyte cellular activity in patients with end-stage HF after left ventricular assist device (LVAD)-induced remodeling to identify mechanisms impeding recovery. METHODS: Myocardium was obtained from subjects undergoing LVAD placement and/or heart transplantation...
July 18, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28702400/sarcomatous-transformation-of-a-hemosiderotic-fibrohistiocytic-lipomatous-tumor-a-case-report
#18
Renata Margarida Etchebehere, Elia Cláudia Souza Almeida, Carlos David Teixeira Santos, Adilha Misson Rua Micheletti, Antônio Sebastião Leitão
Hemosiderotic fibrohistiocytic lipomatous tumors are rare neoplasms that were first described in 2000. Initially considered a benign lipotamous lesion of the soft tissues, nowadays they are considered to be a locally aggressive tumor. They occur mainly in the foot and ankle of women in their fifth and sixth decades, although they may be found in any place in the lower limbs and, more rarely, in other parts of the body. Histologically, hemosiderotic fibrohistiocytic lipomatous tumors consist of a mixture of mature adipose tissue, fusiform cell fascicles, macrophages that often contain cytoplasmic hemosiderin, mononuclear inflammatory infiltrate, and stroma that may be focally myxoid...
May 2017: Revista Brasileira de Ortopedia
https://www.readbyqxmd.com/read/28701277/the-epigenetic-architecture-at-gene-promoters-determines-cell-type-specific-lps-tolerance
#19
Kerstin Klein, Mojca Frank-Bertoncelj, Emmanuel Karouzakis, Renate E Gay, Christoph Kolling, Adrian Ciurea, Nagihan Bostanci, Georgios N Belibasakis, Lih-Ling Lin, Oliver Distler, Steffen Gay, Caroline Ospelt
Synovial fibroblasts (SF) drive inflammation and joint destruction in chronic arthritis. Here we show that SF possess a distinct type of LPS tolerance compared to macrophages and other types of fibroblasts. In SF and dermal fibroblasts, genes that were non-tolerizable after repeated LPS stimulation included pro-inflammatory cytokines, chemokines and matrix metalloproteinases, whereas anti-viral genes were tolerizable. In macrophages, all measured genes were tolerizable, whereas in gingival and foreskin fibroblasts these genes were non-tolerizable...
July 9, 2017: Journal of Autoimmunity
https://www.readbyqxmd.com/read/28700006/effects-of-the-essential-oil-of-alpinia-zerumbet-pers-b-l-burtt-r-m-sm-on-healing-and-tissue-repair-after-partial-achilles-tenotomy-in-rats
#20
Luciano Santos-Júnior, Tassia Virgínia de Carvalho Oliveira, Janaína Farias Cândido, Danielle Souza de Santana, Rose Nely Pereira, Beatriz Benny Sungaila Pereyra, Margarete Zanardo Gomes, Sônia Oliveira Lima, Ricardo Luiz Cavalcanti de Albuquerque-Júnior, Edna Aragão Farias Cândido
Purpose: To investigate the cellular response to injury, analyzing histopathologic changes associated with increased cellularity, degeneration and disorganization of collagen fibers. Methods: Thirty wistar rats were divided in two groups after partial Achilles tenotomy: the right hind paw were treated with the essential oil of Alpinia zerumbet (EOAz), diluted to 33% (0.3 mL kg-1), and the left hind paw received sunflower oil for 3, 14, 30 and 90 days. Statistical significance was determined using a Chi-square and Pearson Correlation qualitative variables test...
June 2017: Acta Cirúrgica Brasileira
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