keyword
MENU ▼
Read by QxMD icon Read
search

Myofibroblast

keyword
https://www.readbyqxmd.com/read/27909731/hypoxia-drives-the-transition-of-human-dermal-fibroblasts-to-a-myofibroblast-like-phenotype-via-the-tgf-%C3%AE-1-smad3-pathway
#1
Bin Zhao, Hao Guan, Jia-Qi Liu, Zhao Zheng, Qin Zhou, Jian Zhang, Lin-Lin Su, Da-Hai Hu
Keloids, partially considered as benign tumors, are characterized by the overgrowth of fibrosis beyond the boundaries of the wound and are regulated mainly by transforming growth factor (TGF)-β1, which induces the transition of fibroblasts to myofibroblasts. Hypoxia is an important driving force in the development of lung and liver fibrosis by activating hypoxia inducible factor-1α and stimulating epithelial‑mesenchymal transition. However, it is unknown whether and hypoxia can influence human dermal scarring...
December 1, 2016: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/27909082/proteomic-investigation-of-dermal-fibroblasts-isolated-from-affected-and-unaffected-skin-samples-from-patients-with-limited-cutaneous-systemic-sclerosis-2-distinct-entities
#2
Claudio Corallo, Annalisa Santucci, Giulia Bernardini, Natale Figura, Roberto Leoncini, Giulia Riolo, Antonio Montella, Chiara Chirico, Ranuccio Nuti, Nicola Giordano
OBJECTIVE: To identify using proteomic analysis the proteins of altered abundance in the affected and unaffected limited cutaneous systemic sclerosis (lcSSc) skin fibroblasts. METHODS: Excision biopsies (3 mm) were obtained from the affected and unaffected skin of 5 patients with lcSSc. Dermal fibroblasts were isolated enzymatically. Two-dimensional gel electrophoresis was used to separate and define proteins in affected and unaffected fibroblast lysates. Proteins of altered abundance were identified by mass spectrometry...
December 1, 2016: Journal of Rheumatology
https://www.readbyqxmd.com/read/27906172/inflammatory-macrophages-can-transdifferentiate-into-myofibroblasts-during-renal-fibrosis
#3
Xiao-Ming Meng, Shuang Wang, Xiao-Ru Huang, Chen Yang, Jun Xiao, Yang Zhang, Ka-Fai To, David J Nikolic-Paterson, Hui-Yao Lan
Myofibroblasts play a central role in renal fibrosis although the origin of these cells remains controversial. We recently reported that bone marrow-derived macrophages can give rise to myofibroblasts through macrophage to myofibroblast transition (MMT). However, several important issues remain to be addressed, including whether MMT occurs in human kidney disease and verification of the MMT process through lineage tracing. Biopsies from a cohort of 58 patients with various forms of kidney disease were examined for MMT cells that co-express macrophage (CD68) and myofibroblast (α-smooth muscle actin, α-SMA) markers...
December 1, 2016: Cell Death & Disease
https://www.readbyqxmd.com/read/27906099/p311-induces-the-transdifferentiation-of-epidermal-stem-cells-to-myofibroblast-like-cells-by-stimulating-transforming-growth-factor-%C3%AE-1-expression
#4
Haisheng Li, Zhihui Yao, Weifeng He, Hongyan Gao, Yang Bai, Sisi Yang, Lu Zhang, Rixing Zhan, Jianglin Tan, Junyi Zhou, Masao Takata, Jun Wu, Gaoxing Luo
BACKGROUND: Epithelial to mesenchymal transition, especially to myofibroblasts, plays an important role in wound healing, fibrosis, and carcinogenesis. Epidermal stem cells (EpSCs) are responsible for epidermal renewal and wound re-epithelialization. However, it remains unclear whether and how EpSCs transdifferentiate into myofibroblasts or myofibroblast-like cells (MFLCs). Here, we provide the first evidence showing that P311 induces EpSC to MFLC transdifferentiation (EpMyT) via TGFβ1/Smad signaling...
December 1, 2016: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/27901027/targeted-killing-of-myofibroblasts-by-biosurfactant-di-rhamnolipid-suggests-a-therapy-against-scar-formation
#5
Chong Shen, Lifang Jiang, Huawei Shao, Chuangang You, Guoliang Zhang, Sitong Ding, Tingwei Bian, Chunmao Han, Qin Meng
Pathological myofibroblasts are often involved in skin scarring via generating contractile force and over-expressing collagen fibers, but no compound has been found to inhibit the myofibroblasts without showing severe toxicity to surrounding physiological cells. Here we report that di-rhamnolipid, a biosurfactant secreted by Pseudomonas aeruginosa, showed potent effects on scar therapy via a unique mechanism of targeted killing the myofibroblasts. In cell culture, the fibroblasts-derived myofibroblasts were more sensitive to di-rhamnolipid toxicity than fibroblasts at a concentration-dependent manner, and could be completely inhibited of their specific functions including α-SMA expression and collagen secretion/contraction...
November 30, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27895734/periostin-and-tumor-stroma-interactions-in-non-small-cell-lung-cancer
#6
Ulrich Nitsche, Daniela Stangel, Zheng Pan, Anna Melissa Schlitter, Irene Esposito, Ivonne Regel, Susanne Raulefs, Helmut Friess, Jörg Kleeff, Mert Erkan
Non-small cell lung cancer (NSCLC) is one of the leading causes of cancer-associated mortality globally. Interactions of the cancer cells with the tumor microenvironment are essential carcinogenic features for the majority of solid tumors, such as pancreatic cancer. The present study investigated the role of stromal activation in NSCLC and analyzed the surgical specimens of 93 patients by immunohistochemistry with regard to periostin (an extracellular matrix protein), α-smooth muscle actin (α-SMA; a marker of myofibroblasts) and cluster of differentiation 31 (CD31; a marker of endothelial cells), and the activated stroma index...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27895151/high-fat-diet-promotes-mammary-gland-myofibroblast-differentiation-through-mir-140-downregulation
#7
Benjamin Wolfson, Yongshu Zhang, Ramkishore Gernapudi, Nadire Duru, Yuan Yao, Pang-Kuo Lo, Qun Zhou
Human breast adipose tissue is a heterogonous cell population consisting of mature white adipocytes, multipotent mesenchymal stem cells, committed progenitor cells, fibroblasts, endothelial cells, and immune cells. Dependent on external stimulation, adipose derived stem cells differentiate along diverse lineages into adipocytes, chondrocytes, osteoblasts, fibroblasts, and myofibroblasts. It is currently not fully understood how high-fat diet reprograms adipose-derived stem cells into myofibroblasts. In our study, we use regular-diet and high-fat diet induced obesity mouse models to investigate the role of dietary fat on myofibroblast differentiation in the mammary stromal microenvironment...
November 28, 2016: Molecular and Cellular Biology
https://www.readbyqxmd.com/read/27894619/expression-of-pro-fibrotic-and-anti-fibrotic-molecules-in-dimethylnitrosamine-induced-hepatic-fibrosis
#8
Roberta Sferra, Antonella Vetuschi, Simona Pompili, Eugenio Gaudio, Silvia Speca, Giovanni Latella
BACKGROUND: Hepatic fibrosis is characterized by a progressive accumulation of fibrillar extracellular matrix (ECM) proteins, produced by activated myofibroblasts which are modulated by both profibrotic and antifibrotic factors. OBJECTIVE: To evaluate in vivo the expression of pro-fibrotic molecules like avβ6 integrin, transforming growth factor-β (TGF-β), Smad3, connective tissue growth factor (CTGF) and mammalian target of Rapamycin (mTOR), as well as anti-fibrotic peroxisome proliferator-activated receptor-γ (PPARγ) in an experimental model of chronic hepatitis-associated fibrosis induced by intraperitoneal administration of dimethylnitrosamine (DMN) in mice...
November 11, 2016: Pathology, Research and Practice
https://www.readbyqxmd.com/read/27894300/pleural-inhibition-of-the-caspase-1-il-1%C3%AE-pathway-diminishes-profibrotic-lung-toxicity-of-bleomycin
#9
Olivier Burgy, Pierre-Simon Bellaye, Sebastien Causse, Guillaume Beltramo, Guillaume Wettstein, Pierre-Marie Boutanquoi, Françoise Goirand, Carmen Garrido, Philippe Bonniaud
BACKGROUND: Idiopathic and toxic pulmonary fibrosis are severe diseases starting classically in the subpleural area of the lung. It has recently been suggested that pleural mesothelial cells acquire a myofibroblast phenotype under fibrotic conditions induced by TGF-β1 or bleomycin. The importance and role of inflammation in fibrogenesis are still controversial. In this work, we explored the role of IL-1β/caspase-1 signaling in bleomycin lung toxicity and in pleural mesothelial cell transformation...
November 29, 2016: Respiratory Research
https://www.readbyqxmd.com/read/27893469/a-review-of-the-surgical-management-of-extrathoracic-solitary-fibrous-tumors
#10
Babar Kayani, Aadhar Sharma, Mathew D Sewell, Johnson Platinum, Andre Olivier, Timothy W R Briggs, Deborah M Eastwood
OBJECTIVES: Extrathoracic solitary fibrous tumors (ESFTs) are rare low-to-intermediate grade spindle-cell neoplasms of pluripotent fibroblastic or myofibroblastic origin. This review explores prognostic factors in the management of ESFTs and provides guidance on optimal treatment regimens based on the current literature. PATIENTS AND METHODS: Electronic searches were performed using MEDLINE, Embase, and the Cochrane library to identify studies on prognostic factors in the management of ESFTs published between January 1970 and June 2016...
November 23, 2016: American Journal of Clinical Oncology
https://www.readbyqxmd.com/read/27892645/endothelial-cell-derived-endothelin-1-is-involved-in-abnormal-scar-formation-by-dermal-fibroblasts-through-rhoa-rho-kinase-pathway
#11
Koichiro Kiya, Tateki Kubo, Kenichiro Kawai, Shinsuke Matsuzaki, Rieko Muramatsu, Daisuke Maeda, Toshihiro Fujiwara, Akimitsu Nishibayashi, Shigeyuki Kanazawa, Kenji Yano, Genki Amano, Taiichi Katayama, Ko Hosokawa
Hypertrophic scars and keloids are characterized by excessive dermal deposition of extracellular matrix due to fibroblast-to-myofibroblast differentiation. Endothelin-1 (ET-1) is primarily produced by vascular endothelial cells, and plays multiple roles in the wound-healing response and organ fibrogenesis. In this study, we investigated the pathophysiological significance of ET-1 and involvement of RhoA, a member of the Rho GTPases, in hypertrophic scar/keloid formation. We found that ET-1 expression on dermal microvascular endothelial cells (ECs) in hypertrophic scars and keloids was higher than that in normal skin and mature scars...
November 28, 2016: Experimental Dermatology
https://www.readbyqxmd.com/read/27886850/cellular-senescence-and-autophagy-in-the-pathogenesis-of-chronic-obstructive-pulmonary-disease-copd-and-idiopathic-pulmonary-fibrosis-ipf
#12
REVIEW
Kazuyoshi Kuwano, Jun Araya, Hiromichi Hara, Shunsuke Minagawa, Naoki Takasaka, Saburo Ito, Kenji Kobayashi, Katsutoshi Nakayama
Aging is associated with impairments in homeostasis. Although aging and senescence are not equivalent, the number of senescent cells increases with aging. Cellular senescence plays important roles in tissue repair or remodeling, as well as embryonic development. Autophagy is a process of lysosomal self-degradation that maintains a homeostatic balance between the synthesis, degradation, and recycling of cellular proteins. Autophagy diminishes with aging; additionally, accelerated aging can be attributed to reduced autophagy...
November 2016: Respiratory Investigation
https://www.readbyqxmd.com/read/27884164/hyaluronan-synthase-2-expressed-by-cancer-associated-fibroblasts-promotes-oral-cancer-invasion
#13
Ziwen Zhang, Detao Tao, Ping Zhang, Xue Liu, Yuchao Zhang, Jie Cheng, Hua Yuan, Laikui Liu, Hongbing Jiang
BACKGROUND: Hyaluronan synthases (HAS) control the biosynthesis of hyaluronan (HA) and critically modulate the tumor microenviroment. Cancer-associated fibroblasts (CAFs) affect the progression of a tumor by remolding the matrix. However, little is known about the role of HAS from CAFs in this process. This study aimed to determine the role of hyaluronan synthase 2 (HAS2) from CAFs in the progression of oral squamous cell carcinoma (OSCC) invasion. METHODS: HAS isoforms 1, 2, and 3 in paired sets of CAFs and normal fibroblasts (NFs) were examined by real-time PCR, and the expression of HAS2 and α-SMA in OSCC tissue sections was further evaluated using immunohistochemical staining...
November 25, 2016: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/27882081/effects-of-different-sutures-on-fibrosis-and-wound-healing-in-a-rabbit-model-of-corneal-wounds
#14
Ying Li, Hui J Chen, Hua Zhang, Jian G Wu, Yun T Hu, Zhi Z Ma
The aim of the study was to investigate wound healing and scar formation in rabbit corneal lamellar wounds repaired with simple interrupted sutures (SIS) or horizontal mattress sutures (HMS). Two parallel 'I'-shaped lamellar cornea wounds were created in one eye of 40 white New Zealand rabbits, while 5 uninjured rabbits were sacrificed to serve as normal controls. One side of the wounds, in the test rabbits, was closed with SIS, while the other side was treated with HMS. Ten days later, the stitches were removed under anesthesia...
November 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/27877129/curcumin-inhibits-transforming-growth-factor-%C3%AE-induced-differentiation-of-mouse-lung-fibroblasts-to-myofibroblasts
#15
Daishun Liu, Ling Gong, Honglan Zhu, Shenglan Pu, Yang Wu, Wei Zhang, Guichuan Huang
Transforming growth factor β (TGF-β) induced differentiation of lung fibroblasts to myofibroblasts is a key event in the pathogenesis of pulmonary fibrosis. This study aimed to evaluate the effect of curcumin on TGF-β induced differentiation of lung fibroblasts to myofibroblasts and explore the underlying mechanism. Mouse lung fibroblasts were cultured and treated with TGF-β2 and curcumin or rosiglitazone. Cell vitality was examined by MTT assay. The secretion of collagen-1 was assessed by ELISA. α smooth muscle actin (α-SMA) was visualized by immunofluorescence technique...
2016: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/27876854/mir-706-inhibits-the-oxidative-stress-induced-activation-of-pkc%C3%AE-taok1-in-liver-fibrogenesis
#16
Ruili Yin, Duo Guo, Shuxian Zhang, Xiuying Zhang
Oxidative stress induces the activation of liver fibrogenic cells (myofibroblasts), thus promoting the expression of fibrosis-related genes, leading to hepatic fibrogenesis. MicroRNAs (miRNAs) are a new class of small RNAs ~18-25 nucleotides in length involved in post-transcriptional regulation of gene expression. Wound-healing and remodeling processes in liver fibrosis have been associated with changes in hepatic miRNA expression. However, the role of miR-706 in liver fibrogenesis is currently unknown. In the present study, we show that miR-706 is abundantly expressed in hepatocytes...
November 23, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27875022/a-comparison-of-left-and-right-atrial-fibroblasts-reveals-different-collagen-production-activity-and-stress-induced-mitogen-activated-protein-kinase-signaling-in-rats
#17
Cheng-Chih Chung, Yu-Hsun Kao, Chih-Jung Yao, Yung-Kuo Lin, Yi-Jen Chen
AIM: Atrial fibrosis plays a pivotal role in the pathophysiology of heart failure (HF). The left atrium (LA) experiences greater fibrosis than the right atrium (RA) during HF. It is not clear whether LA cardiac fibroblasts contain distinctive activities that predispose LA to fibrosis. METHODS: LA and RA fibrosis were evaluated in healthy and isoproterenol induced HF Sprague-Dawley rats. Rat LA and RA primary isolated fibroblasts were subjected to proliferation assay, oxidative stress assay, cell migration analysis, collagen measurement, cytokine array and western blot...
November 22, 2016: Acta Physiologica
https://www.readbyqxmd.com/read/27874193/alk-oncoproteins-in-atypical-inflammatory-myofibroblastic-tumours-novel-rrbp1-alk-fusions-in-epithelioid-inflammatory-myofibroblastic-sarcoma
#18
Jen-Chieh Lee, Chien-Feng Li, Hsuan-Ying Huang, Mei-Jun Zhu, Adrián Mariño-Enríquez, Chung-Ta Lee, Wen-Bin Ou, Jason L Hornick, Jonathan A Fletcher
ALK oncogenic activation mechanisms were characterized in four conventional spindle-cell inflammatory myofibroblastic tumours (IMT) and five atypical IMT, each of which had ALK genomic perturbations. Constitutively activated ALK oncoproteins were purified by ALK immunoprecipitation and electrophoresis, and were characterized by mass spectrometry. The four conventional IMT had TPM3/4-ALK fusions (two cases) or DCTN1-ALK fusions (two cases), whereas two atypical spindle-cell IMT had TFG-ALK and TPM3-ALK fusion in one case each, and three epithelioid inflammatory myofibroblastic sarcomas had RANBP2-ALK fusions in two cases, and a novel RRBP1-ALK fusion in one case...
November 22, 2016: Journal of Pathology
https://www.readbyqxmd.com/read/27872008/the-genetic-basis-of-peyronie-disease-a-review
#19
REVIEW
Amin S Herati, Alexander W Pastuszak
INTRODUCTION: Peyronie disease (PD) is a progressive fibrotic disorder of the penile tunica albuginea that results in fibrotic penile plaques and can lead to penile deformity. Characterized by aberrant fibrosis resulting in part from the persistence of myofibroblasts and altered gene expression, the molecular factors underpinning PD and other related fibrotic diatheses are just being elucidated. A genetic link to PD was first identified three decades ago using pedigree analyses. However, the specific genetic factors that predispose patients to aberrant fibrosis remain unknown, and the relations between these fibrotic conditions and other heritable diseases, including malignancy, are uncharacterized...
January 2016: Sexual Medicine Reviews
https://www.readbyqxmd.com/read/27869651/pericyte-myd88-and-irak4-control-inflammatory-and-fibrotic-responses-to-tissue-injury
#20
Irina A Leaf, Shunsaku Nakagawa, Bryce G Johnson, Jin Joo Cha, Kristen Mittelsteadt, Kevin M Guckian, Ivan G Gomez, William A Altemeier, Jeremy S Duffield
Fibrotic disease is associated with matrix deposition that results in the loss of organ function. Pericytes, the precursors of myofibroblasts, are a source of pathological matrix collagens and may be promising targets for treating fibrogenesis. Here, we have shown that pericytes activate a TLR2/4- and MyD88-dependent proinflammatory program in response to tissue injury. Similarly to classic immune cells, pericytes activate the NLRP3 inflammasome, leading to IL-1β and IL-18 secretion. Released IL-1β signals through pericyte MyD88 to amplify this response...
November 21, 2016: Journal of Clinical Investigation
keyword
keyword
7071
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"