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(Inflammation) AND (wound healing)

Xiumei Che, Ki Cheong Park, Soo Jung Park, You Hyun Kang, Hyun A Jin, Joo Wan Kim, Dong Hyuk Seo, Dae Kyu Kim, Tae Il Kim, Won Ho Kim, Seung Won Kim, Jae Hee Cheon
Triggering receptor expressed on myeloid cells 1 (TREM-1)-expressing intestinal macrophages are significantly increased in the colons of patients with inflammatory bowel disease (IBD). We focused here on the effects of guggulsterone on macrophage modulation in colitis as a potential therapeutic molecule in human IBD and explore the underlying mechanisms. Gene expression in macrophages was examined and wound healing assay using HT-29 cells was performed. Colitis in wild type and IL-10-, TLR4-, and MyD88-deficient mice was induced via the administration of 2,4,6-trinitrobenzene sulfonic acid (TNBS) into the colon...
March 15, 2018: American Journal of Physiology. Gastrointestinal and Liver Physiology
Feng Shen, Qing Guo, Qi Hu, Ailiang Zeng, Weining Wu, Wei Yan, Yongping You
Nuclear factor κB (NF-κB) exhibits an important role in inflammation and tumorigenesis. The key regulatory protein of the pathway, RELB Proto-Oncogene, NF-KB Subunit (relB), is overexpressed and associated with the pathogenesis of a variety of malignant tumors. However, the molecular features and clinical signature of relB expression in gliomas remains to be elucidated. The present study obtained the raw sequencing data of 325 glioma samples of all grades from the Chinese Glioma Genome Atlas (CGGA) database and human glioma cell line (LN229) from the Chinese Academy of Sciences cell bank...
April 2018: Oncology Letters
Małgorzata Pupek, Dorota Krzyżanowska-Gołąb, Daniel Kotschy, Wojciech Witkiewicz, Wiesława Kwiatkowska, Maria Kotschy, Iwona Kątnik-Prastowska
Fibronectin (FN) may be involved in time- and stage-dependent and inter-related controlled processes of inflammation, coagulation, and wound healing accompanying peripheral arterial disease (PAD). In the present study, FN and FN-containing extra-domain A (EDA-FN), macromolecular FN-fibrin complexes, and FN monomer were analysed in the plasma of 142 PAD patients, including 37 patients with restenosis, for 37 months after revascularisation. FN concentration increased significantly in the plasma of PAD patients within 7 to 12 months after revascularisation, whereas the high concentration of EDA-FN was maintained up to 24 months, significantly higher in the group 7 to 12 months after revascularisation with recurrence of stenosis and lower in the PAD groups 1 to 3 months and 4 to 6 months after revascularisation with comorbid diabetes and ulceration, respectively...
March 13, 2018: International Wound Journal
Jiang Wu, Zecong Xiao, Anqi Chen, Huacheng He, Chaochao He, Xintao Shuai, Xiaokun Li, Shengfu Chen, Yanxian Zhang, Baiping Ren, Jie Zheng, Jian Xiao
Skin wound healing is a still long-history challenging problem and impeded by the foreign-body reaction including severe inflammation response, poor neovascularization, incomplete re-epithelialization and defective ECM remodeling. Development of biocompatible polymers, in combination with specific drugs or growth factors, has been considered as a promising strategy to treat skin wounds. Significant research efforts have been made to develop poly(ethylene glycol) PEG-based polymers for wound healing, however less efforts has been paid to zwitterionic materials, some of which have demonstrated their super low-fouling property in vitro and anti-inflammatory property in vivo...
March 10, 2018: Acta Biomaterialia
Angel Guerrero
In the last 20 years, an increasing interest of medicinal chemists on the development of potent and selective agonists and antagonists of adenosine receptors has been noticed due to the large impact they have shown in a variety of important biological processes and diseases. Among these, it should be mentioned vasodilation, inflammation, cancer, wound healing, ischemia reperfusion injury, Parkinson disease, infectious diseases, and other CNS disorders. In this review, I will provide an update of the structures of the A2A agonists known, their selectivity versus other adenosine receptors, and their latest therapeutic applications...
March 12, 2018: Current Medicinal Chemistry
Zhenhan Deng, Jianjian Yin, Wei Luo, Ronak Naveenchandra Kotian, Shanshan Gao, Ziqing Yi, Wenfeng Xiao, Wenping Li, Yusheng Li
Chronic non-healing wounds pose a significant challenge to health-care system because of its tremendous utilization of resources and time to heal. It has a well-deserved reputation for reducing the quality of life for those affected and represents a substantial economic burden to the health-care system overall. Earthworms are used as a traditional Chinese medicine, and have been applied pharmacologically and clinically since a long time in China. However, there is paucity in data regarding its wound healing effects...
March 12, 2018: Bioscience Reports
Michael Korenkov
The video-assisted subcutaneous destruction of the sinus tract (VADST) is a novel, minimally-invasive technique for the treatment of pilonidal sinus disease (PSD). This is an advancement of the previously described subcutaneous destruction of the sinus tract and the removal of hairs as well as the long-term vessel-loop drainage of the wound channel (DST). Although the first results of this operation seemed to be promising, some of my colleagues felt that the blind approach to this procedure could be its potential "weak point"...
March 12, 2018: Surgical Technology International
Helen A Thomason, Jodie M Lovett, Carla J Spina, Christian Stephenson, Andrew J McBain, Matthew J Hardman
Chronic wounds often exist in a heightened state of inflammation whereby excessive inflammatory cells release high levels of proteases and reactive oxygen species (ROS). While low levels of ROS play a fundamental role in the regulation of normal wound healing, their levels need to be tightly regulated to prevent a hostile wound environment resulting from excessive levels of ROS. Infection amplifies the inflammatory response, augmenting levels of ROS which creates additional tissue damage that supports microbial growth...
March 12, 2018: Wound Repair and Regeneration
Paolo Bellavite, Marta Marzotto, Clara Bonafini
Arnica montana is a popular traditional remedy widely used in complementary and alternative medicine, in part for its wound-healing properties. The authors recently showed that this plant extract and several of its homeopathic dilutions are able to modify the expression of a series of genes involved in inflammation and connective tissue regeneration. Their studies opened a debate, including criticisms to the "errors" in the methods used and the "confounders and biases". Here the authors show that the criticisms raised on methodology and statistics are not consistent and cannot be considered pertinent...
March 2018: Journal of Integrative Medicine
Jolanta Sroka, Eliza Zimolag, Slawomir Lasota, Wlodzimierz Korohoda, Zbigniew Madeja
Electrotaxis plays an important role during embryogenesis, inflammation, wound healing, and tumour metastasis. However, the mechanisms at play during electrotaxis are still poorly understood. Therefore intensive studies on signaling pathways involved in this phenomenon should be carried out. In this chapter, we described an experimental system for studying electrotaxis of Amoeba proteus, mouse embryonic fibroblasts (MEF), Walker carcinosarcoma cells WC256, and bone marrow adherent cells (BMAC).
2018: Methods in Molecular Biology
Lili Gao, Mengting Li, Lu Yin, Chanjuan Zhao, Junhong Chen, Jie Zhou, Ke Duan, Bo Feng
Excessive immune responses following the use of implantable, biomaterial-based medical devices represent a substantial challenge for treatment efficacy and patient well-being. Specifically, after implantation, pro-inflammatory M1 macrophages are activated by cytokines such as interferon-γ (IFN-γ) followed by anti-inflammatory M2 macrophages polarized by cytokines including interleukin-4 (IL-4), leading to healing and long-term stability of implants. Here, we report the loading of an immunomodulatory cytokine,IL-4, into TiO2 nanotubes (TNTs) followed by hydrogel coating on the TNTs for subsequent release of IL-4...
March 10, 2018: Journal of Biomedical Materials Research. Part A
Chi-Hua Yen, Hui-Fang Chiu, Su-Yu Huang, Yan-Ying Lu, Yi-Chun Han, You-Cheng Shen, Kamesh Venkatakrishnan, Chin-Kun Wang
BACKGROUND: Burdock complex (BC) constitutes of burdock (Arctium lappa), angelica (Angelica sinensis), gromwell (Lithospermum erythrorhizon), and sesame (Sesamum indicum) oil, which are commonly used in traditional Chinese medicine (TCM) for treating various disorders. This study intended to examine the anti-H. pylori activity of BC on AGS cell model as well as in asymptomatic H. pylori-infected subjects. MATERIALS AND METHODS: AGS cell incubated with H. pylori and treated with BC to evaluate the minimum inhibition concentration (MIC), cell viability (MTT) anti-adhesion activity, and inflammatory markers...
March 8, 2018: Helicobacter
Mithun Sinha, Chandan K Sen, Kanhaiya Singh, Amitava Das, Subhadip Ghatak, Brian Rhea, Britani Blackstone, Heather M Powell, Savita Khanna, Sashwati Roy
Inflammation, following injury, induces cellular plasticity as an inherent component of physiological tissue repair. The dominant fate of wound macrophages is unclear and debated. Here we show that two-thirds of all granulation tissue fibroblasts, otherwise known to be of mesenchymal origin, are derived from myeloid cells which are likely to be wound macrophages. Conversion of myeloid to fibroblast-like cells is impaired in diabetic wounds. In cross-talk between keratinocytes and myeloid cells, miR-21 packaged in extracellular vesicles (EV) is required for cell conversion...
March 5, 2018: Nature Communications
Xue Qu, Huan Liu, Chuchu Zhang, Yu Lei, Miao Lei, Miao Xu, Dawei Jin, Peng Li, Meng Yin, Gregory F Payne, Changsheng Liu
Electrical signals can be imposed with exquisite spatiotemporal control and provide exciting opportunities to create structure and confer function. Here, we report the use of electrical signals to program the fabrication of a chloramine wound dressing with high antimicrobial activity. This method involves two electrofabrication steps: (i) a cathodic electrodeposition of an aminopolysaccharide chitosan triggered by a localized region of high pH; and (ii) an anodic chlorination of the deposited film in the presence of chloride...
March 2, 2018: Acta Biomaterialia
Lydia Meder, Katharina König, Felix Dietlein, Iris Macheleidt, Alexandra Florin, Meryem S Ercanoglu, Ursula Rommerscheidt-Fuss, Mirjam Koker, Gisela Schön, Margarete Odenthal, Florian Klein, Reinhard Büttner, Johannes H Schulte, Lukas C Heukamp, Roland T Ullrich
LIN28B is a RNA-binding protein regulating predominantly let-7 microRNAs with essential functions in inflammation, wound healing, embryonic stem cells, and cancer. LIN28B expression is associated with tumor initiation, progression, resistance, and poor outcome in several solid cancers, including lung cancer. However, the functional role of LIN28B, especially in non-small cell lung adenocarcinomas, remains elusive. Here, we investigated the effects of LIN28B expression on lung tumorigenesis using LIN28B transgenic overexpression in an autochthonous KRASG12V -driven mouse model...
March 5, 2018: Oncogene
Chinedu Cletus Ude, Azizi Miskon, Ruszymah Bt Hj Idrus, Muhamad Bin Abu Bakar
The dynamic nature of modern warfare, including threats and injuries faced by soldiers, necessitates the development of countermeasures that address a wide variety of injuries. Tissue engineering has emerged as a field with the potential to provide contemporary solutions. In this review, discussions focus on the applications of stem cells in tissue engineering to address health risks frequently faced by combatants at war. Human development depends intimately on stem cells, the mysterious precursor to every kind of cell in the body that, with proper instruction, can grow and differentiate into any new tissue or organ...
February 26, 2018: Military Medical Research
Konstantina Kaplani, Stamatina Koutsi, Vasileios Armenis, Foteini G Skondra, Nickolas Karantzelis, Spyridon Champeris Tsaniras, Stavros Taraviras
Wound healing response plays a central part in chronic inflammation, affecting millions of people worldwide. It is a dynamic process that can lead to fibrosis, if tissue damage is irreversible and wound resolution is not attained. It is clear that there is a tight interconnection among wound healing, fibrosis and a variety of chronic disease conditions, demonstrating the heterogeneity of this pathology. Based on our further understanding of the cellular and molecular mechanisms underpinning tissue repair, new therapeutic approaches have recently been developed that target different aspects of the wound healing process and fibrosis...
March 1, 2018: Advanced Drug Delivery Reviews
Ghislain Opdenakker, Jo Van Damme, Jan Jeroen Vranckx
Chronic skin wounds, caused by arterial or venous insufficiency or by physical pressure, constitute an increasing medical problem as populations age. Whereas typical wounds are characterized by local inflammation that participates in the healing process, atonic wounds lack inflammatory markers, such as neutrophil infiltration, and generally do not heal. Recently, prominent roles in the immunopathology of chronic wounds were attributed to dysregulations in specific cytokines, chemokines, matrix metalloproteinases (MMPs), and their substrates...
February 27, 2018: Trends in Immunology
Maocai Zhai, Junyi Guo, Haiyan Ma, Wei Shi, David Jou, Dan Yan, Tianshu Liu, Jingwen Tao, Jialin Duan, Yina Wang, Sheng Li, Jiagao Lv, Chenglong Li, Jiayuh Lin, Cuntai Zhang, Li Lin
BACKGROUND AND AIMS: Abdominal aortic aneurysms (AAA) is a chronic inflammatory disease in which signal transducer and activator of transcription 3 (STAT3), and disintegrin and metalloproteinase 17 (ADAM17) play important roles. However, it remains unclear whether ursolic acid (UA), a natural pentacyclic triterpenoid carboxylic acid, can have an impact on STAT3 and ADAM17 and hence influence the formation of AAA. The objective of this study was to characterize the potential effect of UA on the pathogenesis of AAA and on STAT3 and ADAM17...
February 15, 2018: Atherosclerosis
Caroline L Hall, Adrienne R Wells, Kai P Leung
Pirfenidone (PFD) is a synthetic small molecule inhibitor with demonstrated anti-inflammatory and antifibrotic properties in vitro and in vivo. The exact mechanism(s) of PFD action remain unclear, due in part to the broad effects of this drug on the complex processes involved in inflammation and fibrosis. While PFD is FDA-approved for the treatment of idiopathic pulmonary fibrosis, the efficacy of this compound for the treatment of dermal fibrosis has not yet been fully characterized. Dermal fibrosis is the pathological formation of excess fibrous connective tissue of the skin, usually the result of traumatic cutaneous injury...
March 1, 2018: Laboratory Investigation; a Journal of Technical Methods and Pathology
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