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Kristin Wenzel, Rasmita Samal, Elke Hammer, Vishnu M Dhople, Stefan Gross, Uwe Völker, Stephan B Felix, Stephanie Könemann
Cardiac progenitor cells (CPCs) trigger regenerative processes via paracrine mechanisms in response to changes in their environment. In the present study we explored alterations in the secretory activity of CPCs induced by raised aldosterone levels symptomatic for heart failure. The cytokine profile of the supernatant of CPCs that were treated with the mineralocorticoid showed an induction of interleukin-6 secretion. Mass spectrometric analyses revealed an increase in the abundance of secreted proteins associated with regeneration and cell migration like gelsolin and galectin-1...
October 11, 2016: Molecular and Cellular Endocrinology
Joelle M Fenger, Ryan D Roberts, O Hans Iwenofu, Misty D Bear, Xiaoli Zhang, Jason I Couto, Jaime F Modiano, William C Kisseberth, Cheryl A London
BACKGROUND: MicroRNAs (miRNAs) regulate the expression of networks of genes and their dysregulation is well documented in human malignancies; however, limited information exists regarding the impact of miRNAs on the development and progression of osteosarcoma (OS). Canine OS exhibits clinical and molecular features that closely resemble the corresponding human disease and it is considered a well-established spontaneous animal model to study OS biology. The purpose of this study was to investigate miRNA dysregulation in canine OS...
October 10, 2016: BMC Cancer
Kislay Kumar Sinha, Nagesh Peddada, Pravin Kumar Jha, Anshul Mishra, Krishna Pandey, Vidya Nand Ravi Das, Fnu Ashish, Pradeep Das
INTRODUCTION: Plasma gelsolin (pGSN) is a multi-functional protein involved mainly in severing and clearing of actin filaments. Its level correlates with inflammation and several diseases making it potential biomarker of diagnostic and prognostic values. The pGSN level in groups of treated and untreated HIV-1 infected Indian patients is investigated in this study. OBJECTIVE: This study aims at investigating the levels of plasma gelsolin in HIV-1 infected patients across different age, sex, severity of disease and treatment status...
October 4, 2016: AIDS Research and Human Retroviruses
Kaname Ohyama, Haruka Yoshimi, Nozomi Aibara, Yoichi Nakamura, Yasuyoshi Miyata, Hideki Sakai, Fumihiko Fujita, Yoshitaka Imaizumi, Anil K Chauhan, Naoya Kishikawa, Naotaka Kuroda
Cancer immunotherapies such as antibodies targeting T cell checkpoints, or adaptive tumor-infiltrating lymphocyte (TIL) transfer, have been developed to boost the endogenous immune response against human malignancies. However, activation of T cells by such antibodies can lead to the risk of autoimmune diseases. Also, the selection of tumor-reactive T cells for TIL relies on information regarding mutated antigens in tumors and does not reflect other factors involved in protein antigenicity. It is therefore essential to engineer therapeutic interventions by which T cell reactivity against tumor cells is selectively enhanced (i...
September 29, 2016: International Journal of Cancer. Journal International du Cancer
Francesco Bonì, Mario Milani, Riccardo Porcari, Alberto Barbiroli, Stefano Ricagno, Matteo de Rosa
Mutations in gelsolin are responsible for a systemic amyloidosis first described in 1969. Until recently, the disease was associated with two substitutions of the same residue, leading to the loss of the calcium binding site. Novel interest arose in 2014 when the N184K variant of the protein was identified as the etiological agent of a novel kidney-localized amyloidosis. Here we provide a first rationale for N184K pathogenicity. We show that the mutation induces a destabilization of gelsolin second domain, without compromising its calcium binding capacity...
2016: Scientific Reports
W Silva, A F Ribeiro, M C P Silva, W R Terra, C Ferreira
A role of gelsolin in opening the way along the microvilli for secretory vesicles during microapocrine secretion is proposed here. Data obtained with different techniques showed that many digestive enzymes are released by microapocrine secretion in insects. Proteins that might be involved in the machinery of microapocrine secretion were selected from our transcriptomes and literature searches. The proteins were annexin, Complex actin-related proteins 2 and 3 (ARP 2/3) cofilin, fimbrin, gelsolin 1, gelsolin 2, moesin, myosin 1, myosin 6, protein disulphide isomerase 1 (PDI 1), PDI 2 and profilin...
September 15, 2016: Insect Molecular Biology
Prasath Thiruketheeswaran, Hartmut Greven, Jochen D'Haese
Rearrangements of the filamentous actin network involve a broad range of actin binding proteins. Among these, the gelsolin proteins sever actin filaments, cap their fast growing end and nucleate actin assembly in a calcium-dependent manner. Here, we focus on the gelsolin of the onychophoran Peripatoides novaezealandiae and the eutardigrade Hypsibius dujardini. From the cDNA of P. novaezealandiae we obtained the complete coding sequence with an open reading frame of 2178bp. It encodes a protein of 726 amino acids with a calculated molecular mass of 82,610...
September 11, 2016: Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology
Y Kandur, A Çelik, F Gözübenli, A Çetinkaya, Ş Olgar
No abstract text is available yet for this article.
August 30, 2016: Scandinavian Journal of Rheumatology
Wen-Xiang Li, Meng-Xuan Yang, Xin-Qiang Hong, Tian-Geng Dong, Tuo Yi, Sheng-Li Lin, Xin-Yu Qin, Wei-Xin Niu
The enhanced motility of cancer cells via the remodeling of the actin cytoskeleton is crucial in the process of cancer cell invasion and metastasis. It was previously demonstrated that gelsolin (GSN) may be involved as a tumor or a metastasis suppressor, depending on the cell lines and model systems used. In the present study, the effect of GSN on the growth and invasion of human colon carcinoma (CC) cells was investigated using reverse transcription quantitative polymerase chain reaction and western blotting...
October 2016: Molecular Medicine Reports
Pu-Hong He, Wei-Xia Dong, Xin-Ling Chu, Ming-Guang Feng, Sheng-Hua Ying
The gelsolin superfamily includes seven protein members: gelsolin, villin, adseverin, CapG, advillin, supervillin and flightless I. The gelsolin proteins are actin-binding proteins that contain three or six gelsolin-like domains, and they play important roles in remodeling actin dynamics and cellular processes in eukaryotes. The entomopathogenic fungus Beauveria bassiana expresses a unique CapG protein (BbGEL1) that contains three gelsolin-like domains. BbGEL1p is associated with actin during mycelial growth and plays an important role in fungal morphological transitions under both aerobic and submerged conditions...
August 23, 2016: Environmental Microbiology
Khushboo Singh, James M Briggs
Mutations in the translocated BCL2 gene are often detected in diffuse large B-cell lymphomas (DLBCLs), indicating both their significance and pervasiveness. Large series genome sequencing of more than 200 DLBCLs has identified frequent BCL2 mutations clustered in the exons coding for the BH4 domain and the folded loop domain (FLD) of the protein. However, BCL2 mutations are mostly contemplated to represent bystander events with negligible functional impact on the pathogenesis of DLBCL. BCL2 arbitrates apoptosis through a classic interaction between its hydrophobic groove forming BH1-3 domains and the BH3 domain of pro-apoptotic members of the BCL2 family...
July 2016: Mutation Research. Reviews in Mutation Research
Hülya Halis, Tamer Gunes, Sabriye Korkut, Berkay Saraymen, Ahmet Şen, Osman Bastug, Adnan Öztürk, Selim Kurtoğlu
In spite of advances in neonatal care and the new generation of antibiotics, neonatal sepsis is still a major cause of morbidity and mortality. Early diagnosis of neonatal sepsis is difficult because clinical signs are non-specific. Thus, new biomarkers are still needed for diagnosis. Gelsolin is an actin-binding plasma protein. Furthermore, extracellular gelsolin binds lipopolysaccharide and lipoteichoic acid, which are major virulence factors of Gram-negative and Gram-positive bacteria. The result of this binding is the inhibition of gelsolin's F-actin depolymerizing activity...
September 2016: Medical Hypotheses
Anne-Li Lind, Payam Emami Khoonsari, Marcus Sjödin, Lenka Katila, Magnus Wetterhall, Torsten Gordh, Kim Kultima
OBJECTIVES: Electrical neuromodulation by spinal cord stimulation (SCS) is a well-established method for treatment of neuropathic pain. However, the mechanism behind the pain relieving effect in patients remains largely unknown. In this study, we target the human cerebrospinal fluid (CSF) proteome, a little investigated aspect of SCS mechanism of action. METHODS: Two different proteomic mass spectrometry protocols were used to analyze the CSF of 14 SCS responsive neuropathic pain patients...
August 2016: Neuromodulation: Journal of the International Neuromodulation Society
(no author information available yet)
No abstract text is available yet for this article.
August 1, 2016: Cancer Research
Keisuke Taniuchi, Mutsuo Furihata, Seiji Naganuma, Ken Dabanaka, Kazuhiro Hanazaki, Toshiji Saibara
The cell-adhesion glycoprotein PODXL is associated with an aggressive tumor phenotype in several forms of cancer. Here, we report that high PODXL expression was an independent predictor of worse overall survival of pancreatic cancer patients, and that PODXL promoted pancreatic cancer cell motility and invasion by physically binding to the cytoskeletal protein gelsolin. Suppression of PODXL or gelsolin decreased membrane protrusions with abundant peripheral actin structures, and in turn inhibited cell motility and invasion...
July 27, 2016: Cancer Science
Xiangliang Yuan, Weiwei Wang, Junhua Li, Peiming Zheng, Ping Dong, Lei Chen, Yunlan Zhou, Guohua Xie, Dakang Xu, Yingbin Liu, Lisong Shen
The biological function of gelsolin in gastric cancer and its mechanism remained undefined. Here, we demonstrated that gelsolin was down-regulated in human gastric cancer tissues, and lower tumorous gelsolin significantly correlated with gastric cancer metastasis. Functionally, gelsolin suppressed the migration of gastric cancer cells in vitro and inhibited lung metastasis in vivo. In mechanism, gelsolin decreased epithelial-mesenchymal transition (EMT) inducing cytoskeleton remolding through inhibition of p38 signaling to suppress the migration of gastric cancer cell...
July 13, 2016: Oncotarget
Lalchhandami Tochhawng, Shuo Deng, Ganesan Pugalenthi, Alan Prem Kumar, Kiat Hon Lim, Henry Yang, Shing Chuan Hooi, Yaw Chong Goh, Sutherland K Maciver, Shazib Pervaiz, Celestial T Yap
The actin-binding protein, gelsolin, is a well known regulator of cancer cell invasion. However, the mechanisms by which gelsolin promotes invasion are not well established. As reactive oxygen species (ROS) have been shown to promote cancer cell invasion, we investigated on the hypothesis that gelsolin-induced changes in ROS levels may mediate the invasive capacity of colon cancer cells. Herein, we show that increased gelsolin enhances the invasive capacity of colon cancer cells, and this is mediated via gelsolin's effects in elevating intracellular superoxide (O2...
July 6, 2016: Oncotarget
Li Chen, Ke Meng, Wei Su, Yanjie Fu
Our objective was to investigate the effect of continuous therapeutic sedation on the immune response, plasma levels of antioxidants, and tissue repair indicators in burn-induced sepsis patients. A total of 104 burn-induced sepsis patients hospitalized during March, 2008 to March, 2013 were selected for the study and randomly divided into the experimental and control groups, each with 53 cases. All of these patients received conventional treatment and the patients in the experimental group were given an additional therapy of continuous sedation...
November 2015: Cell Biochemistry and Biophysics
Alexander E Lang, Zheng Qu, Carsten Schwan, Unai Silvan, Andreas Unger, Cora-Ann Schoenenberger, Klaus Aktories, Hans Georg Mannherz
Intoxication of eukaryotic cells by Photorhabdus luminescens toxin TccC3 induces cell rounding and detachment from the substratum within a few hours and compromises a number of cell functions like phagocytosis. Here, we used morphological and biochemical procedures to analyze the mechanism of TccC3 intoxication. Life imaging of TccC3-intoxicated HeLa cells transfected with AcGFP-actin shows condensation of F-actin into large aggregates. Life cell TIRF-microscopy of identically treated HeLa cells confirmed the formation of actin aggregates but also disassembly of F-actin stress fibres...
June 24, 2016: Cellular Microbiology
Volodymyr V Oberemok, Kateryna V Laikova, Aleksei S Zaitsev, Vladimir A Gushchin, Oleksii A Skorokhod
Numerous studies suggest a cellular origin for the Lymantria dispar multicapsid nuclear polyhedrosis virus (LdMNPV) anti-apoptosis genes IAPs, thus opening a possibility to use the fragments of these genes for modulation of host metabolism. We report here the strong insecticidal and metabolic effect of single-stranded antisense DNA fragment from RING (really interesting new gene) domain of gypsy moth LdMNPV IAP-3 gene: specifically, on reduction of biomass (by 35%) and survival of L. dispar caterpillars. The treatment with this DNA fragment leads to a significantly higher mortality rates of female insects (1...
July 2016: Pesticide Biochemistry and Physiology
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