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Schmidt KE, Höving AL, Kiani Zahrani S, Trevlopoulou K, Kaltschmidt B, Knabbe C, Kaltschmidt C. Serum-Induced Proliferation of Human Cardiac Stem Cells Is Modulated via TGFβRI/II and SMAD2/3. Int J Mol Sci 2024; 25:959. [PMID: 38256034 PMCID: PMC10815425 DOI: 10.3390/ijms25020959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 12/22/2023] [Accepted: 01/09/2024] [Indexed: 01/24/2024] Open
Abstract
The ageing phenotype is strongly driven by the exhaustion of adult stem cells (ASCs) and the accumulation of senescent cells. Cardiovascular diseases (CVDs) and heart failure (HF) are strongly linked to the ageing phenotype and are the leading cause of death. As the human heart is considered as an organ with low regenerative capacity, treatments targeting the rejuvenation of human cardiac stem cells (hCSCs) are of great interest. In this study, the beneficial effects of human blood serum on proliferation and senescence of hCSCs have been investigated at the molecular level. We show the induction of a proliferation-related gene expression response by human blood serum at the mRNA level. The concurrent differential expression of the TGFβ target and inhibitor genes indicates the participation of TGFβ signalling in this context. Surprisingly, the application of TGFβ1 as well as the inhibition of TGFβ type I and type II receptor (TGFβRI/II) signalling strongly increased the proliferation of hCSCs. Likewise, both human blood serum and TGFβ1 reduced the senescence in hCSCs. The protective effect of serum on senescence in hCSCs was enhanced by simultaneous TGFβRI/II inhibition. These results strongly indicate a dual role of TGFβ signalling in terms of the serum-mediated effects on hCSCs. Further analysis via RNA sequencing (RNA-Seq) revealed the participation of Ras-inactivating genes wherefore a prevention of hyperproliferation upon serum-treatment in hCSCs via TGFβ signalling and Ras-induced senescence is suggested. These insights may improve treatments of heart failure in the future.
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Affiliation(s)
- Kazuko E. Schmidt
- Department of Cell Biology, Faculty of Biology, University of Bielefeld, 33615 Bielefeld, Germany; (K.E.S.); (S.K.Z.); (K.T.); (B.K.); (C.K.)
- Institute for Laboratory and Transfusion Medicine, Heart and Diabetes Centre NRW, Ruhr-University Bochum, 32545 Bad Oeynhausen, Germany
- Medical Faculty OWL, University of Bielefeld, 33615 Bielefeld, Germany
| | - Anna L. Höving
- Department of Cell Biology, Faculty of Biology, University of Bielefeld, 33615 Bielefeld, Germany; (K.E.S.); (S.K.Z.); (K.T.); (B.K.); (C.K.)
- Institute for Laboratory and Transfusion Medicine, Heart and Diabetes Centre NRW, Ruhr-University Bochum, 32545 Bad Oeynhausen, Germany
- Medical Faculty OWL, University of Bielefeld, 33615 Bielefeld, Germany
| | - Sina Kiani Zahrani
- Department of Cell Biology, Faculty of Biology, University of Bielefeld, 33615 Bielefeld, Germany; (K.E.S.); (S.K.Z.); (K.T.); (B.K.); (C.K.)
| | - Katerina Trevlopoulou
- Department of Cell Biology, Faculty of Biology, University of Bielefeld, 33615 Bielefeld, Germany; (K.E.S.); (S.K.Z.); (K.T.); (B.K.); (C.K.)
| | - Barbara Kaltschmidt
- Department of Cell Biology, Faculty of Biology, University of Bielefeld, 33615 Bielefeld, Germany; (K.E.S.); (S.K.Z.); (K.T.); (B.K.); (C.K.)
- AG Molecular Neurobiology, Faculty of Biology, Bielefeld University, 33615 Bielefeld, Germany
| | - Cornelius Knabbe
- Institute for Laboratory and Transfusion Medicine, Heart and Diabetes Centre NRW, Ruhr-University Bochum, 32545 Bad Oeynhausen, Germany
- Medical Faculty OWL, University of Bielefeld, 33615 Bielefeld, Germany
| | - Christian Kaltschmidt
- Department of Cell Biology, Faculty of Biology, University of Bielefeld, 33615 Bielefeld, Germany; (K.E.S.); (S.K.Z.); (K.T.); (B.K.); (C.K.)
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da Costa NMM, Parisi L, Ghezzi B, Elviri L, de Souza SLS, Novaes AB, de Oliveira PT, Macaluso GM, Palioto DB. Anti-Fibronectin Aptamer Modifies Blood Clot Pattern and Stimulates Osteogenesis: An Ex Vivo Study. Biomimetics (Basel) 2023; 8:582. [PMID: 38132522 PMCID: PMC10741424 DOI: 10.3390/biomimetics8080582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 11/18/2023] [Accepted: 11/22/2023] [Indexed: 12/23/2023] Open
Abstract
BACKGROUND Scaffold (SCA) functionalization with aptamers (APT) provides adsorption of specific bioactive molecules on biomaterial surfaces. The aim of this study was to observe if SCA enriched with anti-fibronectin APT can favor coagulum (PhC) and osteoblasts (OSB) differentiation. METHODS 20 μg of APT was functionalized on SCA by simple adsorption. For PhC formation, SCAs were inserted into rat calvaria defects for 17 h. Following proper transportation (buffer solution PB), OSBs (UMR-106 lineage) were seeded over PhC + SCAs with and without APT. Cells and PhC morphology, PhC cell population, protein labeling and gene expression were observed in different time points. RESULTS The APT induced higher alkaline phosphatase and bone sialoprotein immunolabeling in OSB. Mesenchymal stem cells, leukocytes and lymphocytes cells were detected more in the APT group than when scaffolds were not functionalized. Additionally, an enriched and dense fibrin network and different cell types were observed, with more OSB and white blood cells in PhC formed on SCA with APT. The gene expression showed higher transforming growth factor beta 1 (TGF-b1) detection in SCA with APT. CONCLUSIONS The SCA functionalization with fibronectin aptamers may alter key morphological and functional features of blood clot formation, and provides a selective expression of proteins related to osteo differentiation. Additionally, aptamers increase TGF-b1 gene expression, which is highly associated with improvements in regenerative therapies.
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Affiliation(s)
- Natacha Malu Miranda da Costa
- Department of Oral and Maxillofacial Surgery and Periodontology, School of Dentistry of Ribeirão Preto, University of São Paulo, Avenida Do Café-Subsetor Oeste-11 (N-11), Ribeirão Preto 14040-904, SP, Brazil; (N.M.M.d.C.); (S.L.S.d.S.); (A.B.N.J.)
| | - Ludovica Parisi
- Laboratory for Oral Molecular Biology, Department of Orthodontics and Dentofacial Orthopedics, University of Bern, Freiburgstrasse 3, 3010 Bern, Switzerland;
| | - Benedetta Ghezzi
- Centro Universitario di Odontoiatria, Dipartimento di Medicina e Chirurgia, University of Parma, Via Gramsci 14, 43126 Parma, Italy;
| | - Lisa Elviri
- Istituto dei Materiali per l’Elettronica ed il Magnetismo, Consiglio Nazionale Delle Ricerche, Parco Area Delle Scienze 37/A, 43124 Parma, Italy;
| | - Sergio Luis Scombatti de Souza
- Department of Oral and Maxillofacial Surgery and Periodontology, School of Dentistry of Ribeirão Preto, University of São Paulo, Avenida Do Café-Subsetor Oeste-11 (N-11), Ribeirão Preto 14040-904, SP, Brazil; (N.M.M.d.C.); (S.L.S.d.S.); (A.B.N.J.)
| | - Arthur Belém Novaes
- Department of Oral and Maxillofacial Surgery and Periodontology, School of Dentistry of Ribeirão Preto, University of São Paulo, Avenida Do Café-Subsetor Oeste-11 (N-11), Ribeirão Preto 14040-904, SP, Brazil; (N.M.M.d.C.); (S.L.S.d.S.); (A.B.N.J.)
| | - Paulo Tambasco de Oliveira
- Department of Basic and Oral Biology, School of Dentistry of Ribeirão Preto, University of São Paulo, Avenida Do Café-Subsetor Oeste-11 (N-11), Ribeirão Preto 14040-904, SP, Brazil;
| | - Guido Maria Macaluso
- Dipartimento di Scienze Degli Alimenti e del Farmaco, Parco Area Delle Scienze 27/A, 43124 Parma, Italy;
| | - Daniela Bazan Palioto
- Department of Oral and Maxillofacial Surgery and Periodontology, School of Dentistry of Ribeirão Preto, University of São Paulo, Avenida Do Café-Subsetor Oeste-11 (N-11), Ribeirão Preto 14040-904, SP, Brazil; (N.M.M.d.C.); (S.L.S.d.S.); (A.B.N.J.)
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Taber A, Konecny A, Oda SK, Scott-Browne J, Prlic M. TGF-β broadly modifies rather than specifically suppresses reactivated memory CD8 T cells in a dose-dependent manner. Proc Natl Acad Sci U S A 2023; 120:e2313228120. [PMID: 37988468 PMCID: PMC10691214 DOI: 10.1073/pnas.2313228120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 10/16/2023] [Indexed: 11/23/2023] Open
Abstract
Transforming growth factor β (TGF-β) directly acts on naive, effector, and memory T cells to control cell fate decisions, which was shown using genetic abrogation of TGF-β signaling. TGF-β availability is altered by infections and cancer; however, the dose-dependent effects of TGF-β on memory CD8 T cell (Tmem) reactivation are still poorly defined. We examined how activation and TGF-β signals interact to shape the functional outcome of Tmem reactivation. We found that TGF-β could suppress cytotoxicity in a manner that was inversely proportional to the strength of the activating TCR or proinflammatory signals. In contrast, even high doses of TGF-β had a comparatively modest effect on IFN-γ expression in the context of weak and strong reactivation signals. Since CD8 Tmem may not always receive TGF-β signals concurrently with reactivation, we also explored whether the temporal order of reactivation versus TGF-β signals is of importance. We found that exposure to TGF-β before or after an activation event were both sufficient to reduce cytotoxic effector function. Concurrent ATAC-seq and RNA-seq analysis revealed that TGF-β altered ~10% of the regulatory elements induced by reactivation and also elicited transcriptional changes indicative of broadly modulated functional properties. We confirmed some changes on the protein level and found that TGF-β-induced expression of CCR8 was inversely proportional to the strength of the reactivating TCR signal. Together, our data suggest that TGF-β is not simply suppressing CD8 Tmem but modifies functional and chemotactic properties in context of their reactivation signals and in a dose-dependent manner.
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Affiliation(s)
- Alexis Taber
- Fred Hutchinson Cancer Research Center, Vaccine and Infectious Disease Division, Seattle, WA98109
| | - Andrew Konecny
- Fred Hutchinson Cancer Research Center, Vaccine and Infectious Disease Division, Seattle, WA98109
- Department of Immunology, University of Washington, Seattle, WA98195
| | - Shannon K. Oda
- Ben Towne Center for Childhood Cancer Research, Seattle Children’s Research Institute, Seattle, WA98101
- Department of Pediatrics, School of Medicine, University of Washington, Seattle, WA98105
| | - James Scott-Browne
- Department of Immunology and Genomic Medicine, National Jewish Health, Denver, CO80206
- Department of Immunology and Microbiology, University of Colorado, Anschutz Medical Campus, Aurora, CO80045
| | - Martin Prlic
- Fred Hutchinson Cancer Research Center, Vaccine and Infectious Disease Division, Seattle, WA98109
- Department of Immunology, University of Washington, Seattle, WA98195
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4
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Hapeman JD, Carneiro CS, Nedelcu AM. A model for the dissemination of circulating tumour cell clusters involving platelet recruitment and a plastic switch between cooperative and individual behaviours. BMC Ecol Evol 2023; 23:39. [PMID: 37605189 PMCID: PMC10440896 DOI: 10.1186/s12862-023-02147-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Accepted: 08/10/2023] [Indexed: 08/23/2023] Open
Abstract
BACKGROUND In spite of extensive research, cancer remains a major health problem worldwide. As cancer progresses, cells acquire traits that allow them to disperse and disseminate to distant locations in the body - a process known as metastasis. While in the vasculature, these cells are referred to as circulating tumour cells (CTCs) and can manifest either as single cells or clusters of cells (i.e., CTC clusters), with the latter being the most aggressive. The increased metastatic potential of CTC clusters is generally associated with cooperative group benefits in terms of survival, including increased resistance to shear stress, anoikis, immune attacks and drugs. However, the adoption of a group phenotype poses a challenge when exiting the vasculature (extravasation) as the large size can hinder the passage through vessel walls. Despite their significant role in the metastatic process, the mechanisms through which CTC clusters extravasate remain largely unknown. Based on the observed in vivo association between CTC clusters and platelets, we hypothesized that cancer cells take advantage of the platelet-derived Transforming Growth Factor Beta 1 (TGF-β1) - a signalling factor that has been widely implicated in many aspects of cancer, to facilitate their own dissemination. To address this possibility, we evaluated the effect of exogenous TGF-β1 on an experimentally evolved non-small cell lung cancer cell line that we previously developed and used to investigate the biology of CTC clusters. RESULTS We found that exogenous TGF-β1 induced the dissociation of clusters in suspension into adherent single cells. Once adhered, cells released their own TGF-β1 and were able to individually migrate and invade in the absence of exogenous TGF-β1. Based on these findings we developed a model that involves a TGF-β1-mediated plastic switch between a cooperative phenotype and a single-celled stage that enables the extravasation of CTC clusters. CONCLUSIONS This model allows for the possibility that therapies can be developed against TGF-β1 signalling components and/or TGF-β1 target genes to suppress the metastatic potential of CTC clusters. Considering the negative impact that metastasis has on cancer prognosis and the lack of therapies against this process, interfering with the ability of CTC clusters to switch between cooperative and individual behaviours could provide new strategies to improve patient survival.
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Affiliation(s)
- Jorian D Hapeman
- Department of Biology, University of New Brunswick, Fredericton, NB, E3B 5A3, Canada
| | - Caroline S Carneiro
- Department of Biology, University of New Brunswick, Fredericton, NB, E3B 5A3, Canada
| | - Aurora M Nedelcu
- Department of Biology, University of New Brunswick, Fredericton, NB, E3B 5A3, Canada.
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5
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Taber A, Konecny A, Scott-Browne J, Prlic M. TGF-β broadly modifies rather than specifically suppresses reactivated memory CD8 T cells in a dose-dependent manner. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.07.27.550871. [PMID: 37546887 PMCID: PMC10402134 DOI: 10.1101/2023.07.27.550871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/08/2023]
Abstract
Transforming growth factor β (TGF-β) directly acts on naïve, effector and memory T cells to control cell fate decisions, which was shown using genetic abrogation of TGF-β signaling. TGF-β availability is altered by infections and cancer, however the dose-dependent effects of TGF-β on memory CD8 T cell (Tmem) reactivation are still poorly defined. We examined how activation and TGF-β signals interact to shape the functional outcome of Tmem reactivation. We found that TGF-β could suppress cytotoxicity in a manner that was inversely proportional to the strength of the activating TCR or pro-inflammatory signals. In contrast, even high doses of TGF-β had a comparatively modest effect on IFN-γ expression in the context of weak and strong reactivation signals. Since CD8 Tmem may not always receive TGF-β signals concurrently with reactivation, we also explored whether the temporal order of reactivation versus TGF-β signals is of importance. We found that exposure to TGF-β prior to as well as after an activation event were both sufficient to reduce cytotoxic effector function. Concurrent ATAC-seq and RNA-seq analysis revealed that TGF-β altered ~10% of the regulatory elements induced by reactivation and also elicited transcriptional changes indicative of broadly modulated functional properties. We confirmed some changes on the protein level and found that TGF-β-induced expression of CCR8 was inversely proportional to the strength of the reactivating TCR signal. Together, our data suggest that TGF-β is not simply suppressing CD8 Tmem, but modifies functional and chemotactic properties in context of their reactivation signals and in a dose-dependent manner.
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Affiliation(s)
- Alexis Taber
- Fred Hutchinson Cancer Research Center, Vaccine and Infectious Disease Division, Seattle, WA 98109, USA
| | - Andrew Konecny
- Fred Hutchinson Cancer Research Center, Vaccine and Infectious Disease Division, Seattle, WA 98109, USA
- Department of Immunology, University of Washington, Seattle, WA 98195
| | - James Scott-Browne
- Department of Immunology and Genomic Medicine, National Jewish Health, Denver, CO 80206
- Department of Immunology and Microbiology, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045
| | - Martin Prlic
- Fred Hutchinson Cancer Research Center, Vaccine and Infectious Disease Division, Seattle, WA 98109, USA
- Department of Immunology, University of Washington, Seattle, WA 98195
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Gumkowska-Sroka O, Kotyla K, Mojs E, Palka K, Kotyla P. Novel Therapeutic Strategies in the Treatment of Systemic Sclerosis. Pharmaceuticals (Basel) 2023; 16:1066. [PMID: 37630981 PMCID: PMC10458905 DOI: 10.3390/ph16081066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 07/09/2023] [Accepted: 07/17/2023] [Indexed: 08/27/2023] Open
Abstract
Systemic sclerosis is a connective tissue disease of unknown origin and with an unpredictable course, with both cutaneous and internal organ manifestations. Despite the enormous progress in rheumatology and clinical immunology, the background of this disease is largely unknown, and no specific therapy exists. The therapeutic approach aims to treat and preserve the function of internal organs, and this approach is commonly referred to as organ-based treatment. However, in modern times, data from other branches of medicine may offer insight into how to treat disease-related complications, making it possible to find new drugs to treat this disease. In this review, we present therapeutic options aiming to stop the progression of fibrotic processes, restore the aberrant immune response, stop improper signalling from proinflammatory cytokines, and halt the production of disease-related autoantibodies.
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Affiliation(s)
- Olga Gumkowska-Sroka
- Department of Rheumatology and Clinical Immunology, Voivodeship Hospital No. 5 in Sosnowiec, Medical University of Silesia, 40-055 Katowice, Poland;
- Department of Internal Medicine Rheumatology and Clinical Immunology, Medical University of Silesia, 40-055 Katowice, Poland; (K.K.); (K.P.)
| | - Kacper Kotyla
- Department of Internal Medicine Rheumatology and Clinical Immunology, Medical University of Silesia, 40-055 Katowice, Poland; (K.K.); (K.P.)
| | - Ewa Mojs
- Department of Clinical Psychology, Poznan University of Medical Sciences, 61-701 Poznan, Poland;
| | - Klaudia Palka
- Department of Internal Medicine Rheumatology and Clinical Immunology, Medical University of Silesia, 40-055 Katowice, Poland; (K.K.); (K.P.)
| | - Przemysław Kotyla
- Department of Rheumatology and Clinical Immunology, Voivodeship Hospital No. 5 in Sosnowiec, Medical University of Silesia, 40-055 Katowice, Poland;
- Department of Internal Medicine Rheumatology and Clinical Immunology, Medical University of Silesia, 40-055 Katowice, Poland; (K.K.); (K.P.)
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7
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Raschick M, Richter A, Fischer L, Knopf L, Schult A, Yakupov R, Behnisch G, Guttek K, Düzel E, Dunay IR, Seidenbecher CI, Schraven B, Reinhold D, Schott BH. Plasma concentrations of anti-inflammatory cytokine TGF-β are associated with hippocampal structure related to explicit memory performance in older adults. J Neural Transm (Vienna) 2023:10.1007/s00702-023-02638-1. [PMID: 37115329 PMCID: PMC10374779 DOI: 10.1007/s00702-023-02638-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 04/19/2023] [Indexed: 04/29/2023]
Abstract
Human cognitive abilities, and particularly hippocampus-dependent memory performance typically decline with increasing age. Immunosenescence, the age-related disintegration of the immune system, is increasingly coming into the focus of research as a considerable factor contributing to cognitive decline. In the present study, we investigated potential associations between plasma levels of pro- and anti-inflammatory cytokines and learning and memory performance as well as hippocampal anatomy in young and older adults. Plasma concentrations of the inflammation marker CRP as well as the pro-inflammatory cytokines IL-6 and TNF-α and the anti-inflammatory cytokine TGF-β1 were measured in 142 healthy adults (57 young, 24.47 ± 4.48 years; 85 older, 63.66 ± 7.32 years) who performed tests of explicit memory (Verbal Learning and Memory Test, VLMT; Wechsler Memory Scale, Logical Memory, WMS) with an additional delayed recall test after 24 h. Hippocampal volumetry and hippocampal subfield segmentation were performed using FreeSurfer, based on T1-weighted and high-resolution T2-weighted MR images. When investigating the relationship between memory performance, hippocampal structure, and plasma cytokine levels, we found that TGF-β1 concentrations were positively correlated with the volumes of the hippocampal CA4-dentate gyrus region in older adults. These volumes were in turn positively associated with better performance in the WMS, particularly in the delayed memory test. Our results support the notion that endogenous anti-inflammatory mechanisms may act as protective factors in neurocognitive aging.
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Affiliation(s)
- Matthias Raschick
- Leibniz Institute for Neurobiology, Brenneckestr. 6, 39118, Magdeburg, Germany
| | - Anni Richter
- Leibniz Institute for Neurobiology, Brenneckestr. 6, 39118, Magdeburg, Germany
- Center for Intervention and Research on Adaptive and Maladaptive Brain Circuits Underlying Mental Health (C-I-R-C), Jena-Magdeburg-Halle, Germany
| | - Larissa Fischer
- Leibniz Institute for Neurobiology, Brenneckestr. 6, 39118, Magdeburg, Germany
- German Center for Neurodegenerative Diseases (DZNE), Magdeburg, Germany
| | - Lea Knopf
- Leibniz Institute for Neurobiology, Brenneckestr. 6, 39118, Magdeburg, Germany
| | - Annika Schult
- Leibniz Institute for Neurobiology, Brenneckestr. 6, 39118, Magdeburg, Germany
| | - Renat Yakupov
- German Center for Neurodegenerative Diseases (DZNE), Magdeburg, Germany
- Institute of Cognitive Neurology and Dementia Research, Medical Faculty, Otto-Von-Guericke-University Magdeburg, Magdeburg, Germany
| | - Gusalija Behnisch
- Leibniz Institute for Neurobiology, Brenneckestr. 6, 39118, Magdeburg, Germany
| | - Karina Guttek
- Institute of Molecular and Clinical Immunology, Medical Faculty, Otto-Von-Guericke-University Magdeburg, Magdeburg, Germany
| | - Emrah Düzel
- Center for Intervention and Research on Adaptive and Maladaptive Brain Circuits Underlying Mental Health (C-I-R-C), Jena-Magdeburg-Halle, Germany
- German Center for Neurodegenerative Diseases (DZNE), Magdeburg, Germany
- Institute of Cognitive Neurology and Dementia Research, Medical Faculty, Otto-Von-Guericke-University Magdeburg, Magdeburg, Germany
- Center for Behavioral Brain Sciences (CBBS), Magdeburg, Germany
| | - Ildiko Rita Dunay
- Center for Behavioral Brain Sciences (CBBS), Magdeburg, Germany
- Institute for Inflammation and Neurodegeneration, Medical Faculty, Otto-Von-Guericke-University Magdeburg, Magdeburg, Germany
- Health Campus Immunology, Infectiology and Inflammation (GC-I3), Medical Faculty, Otto-Von-Guericke-University Magdeburg, Magdeburg, Germany
| | - Constanze I Seidenbecher
- Leibniz Institute for Neurobiology, Brenneckestr. 6, 39118, Magdeburg, Germany
- Center for Intervention and Research on Adaptive and Maladaptive Brain Circuits Underlying Mental Health (C-I-R-C), Jena-Magdeburg-Halle, Germany
- Center for Behavioral Brain Sciences (CBBS), Magdeburg, Germany
| | - Burkhart Schraven
- Institute of Molecular and Clinical Immunology, Medical Faculty, Otto-Von-Guericke-University Magdeburg, Magdeburg, Germany
- Health Campus Immunology, Infectiology and Inflammation (GC-I3), Medical Faculty, Otto-Von-Guericke-University Magdeburg, Magdeburg, Germany
- Center for Health and Medical Prevention (CHaMP), Otto-Von-Guericke-University Magdeburg, Magdeburg, Germany
| | - Dirk Reinhold
- Institute of Molecular and Clinical Immunology, Medical Faculty, Otto-Von-Guericke-University Magdeburg, Magdeburg, Germany
- Health Campus Immunology, Infectiology and Inflammation (GC-I3), Medical Faculty, Otto-Von-Guericke-University Magdeburg, Magdeburg, Germany
- Center for Health and Medical Prevention (CHaMP), Otto-Von-Guericke-University Magdeburg, Magdeburg, Germany
| | - Björn H Schott
- Leibniz Institute for Neurobiology, Brenneckestr. 6, 39118, Magdeburg, Germany.
- Center for Behavioral Brain Sciences (CBBS), Magdeburg, Germany.
- Department of Psychiatry and Psychotherapy, University Medical Center, Göttingen, Germany.
- German Center for Neurodegenerative Diseases (DZNE), Göttingen, Germany.
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8
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Wang X, Wang T, Wang J, Niu X, Wang K, Hao Z, Gao H. Circulating Transforming Growth Factor-β1 Levels in Preeclamptic Women: a Meta-analysis. Reprod Sci 2022; 30:1952-1964. [DOI: 10.1007/s43032-022-01156-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 12/13/2022] [Indexed: 12/28/2022]
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9
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Tie Y, Tang F, Peng D, Zhang Y, Shi H. TGF-beta signal transduction: biology, function and therapy for diseases. MOLECULAR BIOMEDICINE 2022; 3:45. [PMID: 36534225 PMCID: PMC9761655 DOI: 10.1186/s43556-022-00109-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Accepted: 11/15/2022] [Indexed: 12/23/2022] Open
Abstract
The transforming growth factor beta (TGF-β) is a crucial cytokine that get increasing concern in recent years to treat human diseases. This signal controls multiple cellular responses during embryonic development and tissue homeostasis through canonical and/or noncanonical signaling pathways. Dysregulated TGF-β signal plays an essential role in contributing to fibrosis via promoting the extracellular matrix deposition, and tumor progression via inducing the epithelial-to-mesenchymal transition, immunosuppression, and neovascularization at the advanced stage of cancer. Besides, the dysregulation of TGF-beta signal also involves in other human diseases including anemia, inflammatory disease, wound healing and cardiovascular disease et al. Therefore, this signal is proposed to be a promising therapeutic target in these diseases. Recently, multiple strategies targeting TGF-β signals including neutralizing antibodies, ligand traps, small-molecule receptor kinase inhibitors targeting ligand-receptor signaling pathways, antisense oligonucleotides to disrupt the production of TGF-β at the transcriptional level, and vaccine are under evaluation of safety and efficacy for the forementioned diseases in clinical trials. Here, in this review, we firstly summarized the biology and function of TGF-β in physiological and pathological conditions, elaborated TGF-β associated signal transduction. And then, we analyzed the current advances in preclinical studies and clinical strategies targeting TGF-β signal transduction to treat diseases.
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Affiliation(s)
- Yan Tie
- grid.13291.380000 0001 0807 1581Department of Biotherapy, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, No.37 Guo Xue Xiang, Chengdu, 610041 China
| | - Fan Tang
- grid.13291.380000 0001 0807 1581Department of Biotherapy, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, No.37 Guo Xue Xiang, Chengdu, 610041 China ,grid.13291.380000 0001 0807 1581Orthopaedic Research Institute, Department of Orthopaedics, West China Hospital, Sichuan University, Chengdu, China
| | - Dandan Peng
- grid.13291.380000 0001 0807 1581Department of Biotherapy, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, No.37 Guo Xue Xiang, Chengdu, 610041 China
| | - Ye Zhang
- grid.506261.60000 0001 0706 7839Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021 China
| | - Huashan Shi
- grid.13291.380000 0001 0807 1581Department of Biotherapy, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, No.37 Guo Xue Xiang, Chengdu, 610041 China
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10
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Liu Y, Li X, Jiang C, Guo H, Luo G, Huang Y, Yuan C. Clinical applications of concentrated growth factors membrane for sealing the socket in alveolar ridge preservation: a randomized controlled trial. Int J Implant Dent 2022; 8:46. [PMID: 36316617 PMCID: PMC9622971 DOI: 10.1186/s40729-022-00448-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 10/05/2022] [Indexed: 11/08/2022] Open
Abstract
The purpose of this study was to evaluate the efficacy of concentrated growth factor (CGF) membrane for the sealing of alveolar socket in alveolar ridge preservation (ARP). A total of 22 patients with 24 alveolar sockets were recruited and divided randomly into CGF group and Bio-Gide collagen membrane group. The soft tissue wound healing rate was calculated using intraoral scanner at 3, 7, and 14 days after ARP, and the bone resorption volume at 1, 3, and 5 mm below the alveolar ridge was measured by CBCT at 6 months postoperation. The keratinized gingival width was also measured before and 6 months after ridge preservation. In terms of soft tissue healing rate, the CGF group exhibited significant higher than that of Bio-Gide group at both 7 and 14 days after surgery (P < 0.05). However, there was no significantly different in bone resorption rate and the width of keratinized gingival after 6 months (P > 0.05). Therefore, the use of CGFs membranes for wound closure in ARP is a reliable method, but more clinical data are needed to prove it.
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Affiliation(s)
- Yumeng Liu
- grid.417303.20000 0000 9927 0537School of Stomatology, Xuzhou Medical University, Xuzhou, 221004 Jiangsu China
| | - Xiaoming Li
- grid.417303.20000 0000 9927 0537Department of Oral Implantology, The Affiliated Stomatological Hospital of Xuzhou Medical University, 130 Huaihai West Road, Xuzhou, 221000 Jiangsu China
| | - Changwei Jiang
- grid.417303.20000 0000 9927 0537Department of Oral Implantology, The Affiliated Stomatological Hospital of Xuzhou Medical University, 130 Huaihai West Road, Xuzhou, 221000 Jiangsu China
| | - Huiying Guo
- grid.417303.20000 0000 9927 0537School of Stomatology, Xuzhou Medical University, Xuzhou, 221004 Jiangsu China
| | - Guisheng Luo
- grid.417303.20000 0000 9927 0537School of Stomatology, Xuzhou Medical University, Xuzhou, 221004 Jiangsu China
| | - Yangyang Huang
- grid.417303.20000 0000 9927 0537School of Stomatology, Xuzhou Medical University, Xuzhou, 221004 Jiangsu China
| | - Changyong Yuan
- grid.417303.20000 0000 9927 0537Department of Oral Implantology, The Affiliated Stomatological Hospital of Xuzhou Medical University, 130 Huaihai West Road, Xuzhou, 221000 Jiangsu China
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11
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Opposing roles of ZEB1 in the cytoplasm and nucleus control cytoskeletal assembly and YAP1 activity. Cell Rep 2022; 41:111452. [DOI: 10.1016/j.celrep.2022.111452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 07/12/2022] [Accepted: 09/14/2022] [Indexed: 11/16/2022] Open
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12
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Luo J, Wu F, Liu W, Ren Q, Diao P, Guan G, Luo J, Yin H, Liu G. A Novel MicroRNA and the Target Gene TAB2 Can Regulate the Process of Sucking Blood in and the Spawn Rate of Hyalomma asiaticum (Acari: Ixodidae) Ticks. Front Immunol 2022; 13:930532. [PMID: 35865515 PMCID: PMC9294593 DOI: 10.3389/fimmu.2022.930532] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 06/14/2022] [Indexed: 01/10/2023] Open
Abstract
Ticks are blood-sucking parasites that are harmful to humans and animals. MicroRNAs are a class of conserved small noncoding RNAs that play regulatory roles in the expression of many genes at the posttranscriptional level. Here, a novel miRNA (nov-miR-17) was identified from a small RNA data library of Hyalomma asiaticum by next-generation sequencing. PCR was used to obtain precursor nov-miR-17 by RACE using mature loop primers. The secondary structure was predicted with UNAFold. The interaction of nov-miR-17 with its target gene TAB2 was predicted using RNAhybrid software and identified in vitro by luciferase assays. Moreover, the interaction was confirmed in vivo by phenotype rescue experiments in which dsTAB2 was used for RNA interference (RNAi) and an antagomir of nov-miR-17 was used for miRNA silencing. The expression levels of nov-miR-17 and TAB2 in ticks at different developmental stages and the expression of nov-miR-17 in different tissues were analyzed by real-time qPCR. All data were analyzed using GraphPad Prism version 5. Results: The results showed that TAB2 was a target gene of nov-miR-17. When the blood-sucking process of larval, nymph and adult ticks was prolonged, the expression of nov-miR-17 was decreased, and TAB2 expression was increased. However, the level of nov-miR-17 in the midgut of engorged ticks was highest at all stages. Therefore, nov-miR-17 plays an important role in the blood-sucking process. The overexpression of nov-miR-17 indicated that this miRNA affected the engorged weight (P < 0.001) and spawn rate (P < 0.001) of female ticks. RNAi of TAB2 also had the same effect. dsRNA not only impacted the weight (P < 0.01) but also reduced the spawn rate (P < 0.001) of the ticks. Furthermore, significant recovery was observed in nov-miR-17-silenced ticks after TAB2 silencing by RNAi. nov-miR-17 silencing by antagomir not only impacted the engorged weight of the female ticks (P < 0.001) but also the number of days that the females needed to progress from engorgement to spawning (P < 0.001). The study showed that nov-miR-17, as a new miRNA, plays an important role along with its target gene TAB2 in the blood-sucking and spawning processes in female ticks.
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Affiliation(s)
- Jin Luo
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Science, Lanzhou, China
| | - Feng Wu
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Science, Lanzhou, China
| | - Wenge Liu
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Science, Lanzhou, China
| | - Qiaoyun Ren
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Science, Lanzhou, China
| | - Peiwen Diao
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Science, Lanzhou, China
| | - Guiquan Guan
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Science, Lanzhou, China
| | - Jianxun Luo
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Science, Lanzhou, China
| | - Hong Yin
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Science, Lanzhou, China
- Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Disease and Zoonosis, Yangzhou University, Yangzhou, China
- *Correspondence: Guangyuan Liu, ; Hong Yin,
| | - Guangyuan Liu
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Science, Lanzhou, China
- *Correspondence: Guangyuan Liu, ; Hong Yin,
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13
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Lakade C, Shetty G, Mitra D, Rodrigues S. Clinical and histological evaluation of concentrated growth factor membrane bandage after gingival depigmentation: A case series. J Indian Soc Periodontol 2022; 26:501-506. [DOI: 10.4103/jisp.jisp_405_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Revised: 03/11/2022] [Accepted: 03/27/2022] [Indexed: 11/04/2022] Open
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14
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Chan J, Eide IA, Tannæs TM, Waldum-Grevbo B, Jenssen T, Svensson M. Marine n-3 Polyunsaturated Fatty Acids and Cellular Senescence Markers in Incident Kidney Transplant Recipients: The Omega-3 Fatty Acids in Renal Transplantation (ORENTRA) Randomized Clinical Trial. Kidney Med 2021; 3:1041-1049. [PMID: 34939013 PMCID: PMC8664741 DOI: 10.1016/j.xkme.2021.07.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Rationale & Objective Deterioration of kidney graft function is associated with accelerated cellular senescence. Marine n-3 polyunsaturated fatty acids (PUFAs) have favorable properties that may counteract cellular senescence development and damage caused by the senescence-associated secretory phenotype (SASP) secretome. Our objective was to investigate the potential effects of marine n-3 PUFA supplementation on the SASP secretome in kidney transplant recipients. Study Design Exploratory substudy of the Omega-3 Fatty Acids in Renal Transplantation trial. Setting & Participants Adult kidney transplant recipients with a functional kidney graft (defined as having an estimated glomerular filtration rate of >30 mL/min/1.73 m2) 8 weeks after engraftment were included in this study conducted in Norway. Analytical Approach The intervention consisted of 2.6 g of a marine n-3 PUFA or olive oil (placebo) daily for 44 weeks. The outcome was a predefined panel of SASP components in the plasma and urine. Results A total of 132 patients were enrolled in the Omega-3 Fatty Acids in Renal Transplantation trial, and 66 patients were allocated to receive either the study drug or placebo. The intervention with the marine n-3 PUFA was associated with reduced plasma levels of granulocyte colony-stimulating factor, interleukin 1α, macrophage inflammatory protein 1α, matrix metalloproteinase (MMP)-1, and MMP-13 compared with the intervention in the control group. Limitations Post hoc analysis. Conclusions The results suggest that marine n-3 PUFA supplementation has mitigating effects on the plasma SASP components granulocyte colony-stimulating factor, interleukin 1α, macrophage inflammatory protein 1α, MMP-1, and MMP-13 in kidney transplant recipients. Future studies with kidney transplant recipients in maintenance phase, combined with an evaluation of cellular senescence markers in kidney transplant biopsies, are needed to further elucidate the potential antisenescent effect of marine n-3 PUFAs. This trial is registered as NCT01744067.
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Affiliation(s)
- Joe Chan
- Department of Renal Medicine, Akershus University Hospital, Lørenskog.,Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo
| | - Ivar A Eide
- Department of Renal Medicine, Akershus University Hospital, Lørenskog.,Department of Transplantation Medicine, Oslo University Hospital Rikshospitalet, Oslo
| | - Tone M Tannæs
- Department of Clinical Molecular Biology (EpiGen), Division of Medicine, Akershus University Hospital and University of Oslo, Lørenskog
| | - Bård Waldum-Grevbo
- Department of Nephrology, Oslo University Hospital Ullevål, Oslo, Norway
| | - Trond Jenssen
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo.,Department of Transplantation Medicine, Oslo University Hospital Rikshospitalet, Oslo
| | - My Svensson
- Department of Renal Medicine, Akershus University Hospital, Lørenskog.,Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo
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15
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Ong CH, Tham CL, Harith HH, Firdaus N, Israf DA. TGF-β-induced fibrosis: A review on the underlying mechanism and potential therapeutic strategies. Eur J Pharmacol 2021; 911:174510. [PMID: 34560077 DOI: 10.1016/j.ejphar.2021.174510] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 09/10/2021] [Accepted: 09/17/2021] [Indexed: 12/12/2022]
Abstract
Transforming growth factor-beta (TGF-β) plays multiple homeostatic roles in the regulation of inflammation, proliferation, differentiation and would healing of various tissues. Many studies have demonstrated that TGF-β stimulates activation and proliferation of fibroblasts, which result in extracellular matrix deposition. Its increased expression can result in many fibrotic diseases, and the level of expression is often correlated with disease severity. On this basis, inhibition of TGF-β and its activity has great therapeutic potential for the treatment of various fibrotic diseases such as pulmonary fibrosis, renal fibrosis, systemic sclerosis and etc. By understanding the molecular mechanism of TGF-β signaling and activity, researchers were able to develop different strategies in order to modulate the activity of TGF-β. Antisense oligonucleotide was developed to target the mRNA of TGF-β to inhibit its expression. There are also neutralizing monoclonal antibodies that can target the TGF-β ligands or αvβ6 integrin to prevent binding to receptor or activation of latent TGF-β respectively. Soluble TGF-β receptors act as ligand traps that competitively bind to the TGF-β ligands. Many small molecule inhibitors have been developed to inhibit the TGF-β receptor at its cytoplasmic domain and also intracellular signaling molecules. Peptide aptamer technology has been used to target downstream TGF-β signaling. Here, we summarize the underlying mechanism of TGF-β-induced fibrosis and also review various strategies of inhibiting TGF-β in both preclinical and clinical studies.
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Affiliation(s)
- Chun Hao Ong
- Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, 43300, Malaysia
| | - Chau Ling Tham
- Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, 43300, Malaysia
| | - Hanis Hazeera Harith
- Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, 43300, Malaysia
| | - Nazmi Firdaus
- Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, 43300, Malaysia
| | - Daud Ahmad Israf
- Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, 43300, Malaysia.
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16
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Stadtlober NP, Flauzino T, Santos LFDRF, Iriyoda TMV, Costa NT, Lozovoy MAB, Reiche EMV, Simão ANC. TGFB1 +869 T > C (rs1800470) variant is independently associated with susceptibility, laboratory activity, and TGF-β1 in patients with systemic lupus erythematosus. Autoimmunity 2021; 54:569-575. [PMID: 34519592 DOI: 10.1080/08916934.2021.1975680] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
The aim of this study was to evaluate the association of the +869 T > C (rs1800470) and -509 C > T (rs1800469) TGFB1 variants, individually or in haplotypes structure, with susceptibility, autoantibodies, disease activity, and TGF-β1 plasma levels in patients with systemic lupus erythematosus (SLE). The study included 203 patients with SLE and 165 healthy controls. TGFB1 variants were determined by real-time polymerase chain reaction (qPCR). Plasma levels of TGF-β1 were determined using immunofluorimetric assay. The TGFB1 + 869 CC genotype was associated with SLE susceptibility (OR: 1.710, 95%CI: 1.020-2.866, p = 0.042) and with reduction of C4 (p = 0.040) and TGF-β1 levels (p = 0.044). In addition, patients with TGFB1 + 869 TC and CC genotypes and positive anti-dsDNA had lower TGF-β1 levels than those with TT (p = 0.004). TGFB1 -509 TT genotype was associated with reduced levels of C4 (p = 0.032). There was no association between haplotypes and clinical and laboratory parameters. Our data demonstrated that the TGFB1 + 869 T > C variant could be used as a genetic marker for SLE susceptibility and both variants as predictors of laboratory activity. This is the first study to demonstrate that TGF-β1 levels could be modulated by the interaction between TGFB1 + 869 C allele, in homozygosity, or heterozygosity, and the presence of anti-dsDNA.
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Affiliation(s)
| | - Tamires Flauzino
- Laboratory of Research in Applied Immunology, State University of Londrina, Londrina, Brazil
| | | | | | | | - Marcell Alysson Batisti Lozovoy
- Department of Pathology, Clinical Analysis and Toxicology, Laboratory of Research in Applied Immunology, State University of Londrina, Londrina, Brazil
| | - Edna Maria Vissoci Reiche
- Department of Pathology, Clinical Analysis and Toxicology, Laboratory of Research in Applied Immunology, State University of Londrina, Londrina, Brazil
| | - Andréa Name Colado Simão
- Department of Pathology, Clinical Analysis and Toxicology, Laboratory of Research in Applied Immunology, State University of Londrina, Londrina, Brazil
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17
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Cohen DJ, Reynaldo WV, Borba VB, Theodoro TR, Petri G, Cavalheiro RP, Mader AM, Han SW, Pinhal MA, Glina S. New in vivo model to assess macroscopic, histological, and molecular changes in Peyronie's disease. Andrology 2021; 10:154-165. [PMID: 34464514 DOI: 10.1111/andr.13092] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 06/21/2021] [Accepted: 08/01/2021] [Indexed: 02/06/2023]
Abstract
BACKGROUND Peyronie's Disease (PD) is a connective tissue disorder that affects the tunica albuginea (TA) of the penis causing curvature and erectile dysfunction. The pathophysiology is not well understood and, for this reason, treatment options are limited. OBJECTIVE The aim of the present study is to analyze and compare whether single or multiple instillations of plasma in the TA of rats is capable of triggering macroscopic, histopathological, and molecular changes consistent with PD. MATERIAL/METHODS Fifty male Wistar rats were divided into four groups: Group 1: a single instillation of plasma in the TA; Group 2: a single instillation of distilled water in the TA; Group 3: four instillations of plasma in the TA (1x per week); and Group 4: four instillations of distilled water in the TA (1× per week). Forty-five days after the last instillation a manual inspection of the corpus cavernosum, a penile erection test and a penectomy were performed to obtain material for histopathological and molecular analysis. RESULTS It was observed that 31.25% of the rats that received repeated instillations of plasma presented penile curvature according to the erection test, while none of the rats from the control group or group with one instillation of plasma presented curvature. In the animals that received four instillations of plasma, the following differences were observed in relation to the control group: increase in fibrosis and the deposition of collagen I. The protein expression of heparanase (HPSE) and TGF-β increased in the groups that received a single or four instillations of plasma, and the protein expression of heparanase-2 (HPSE-2), metalloproteinases (MMP-2, MMP-9) and metalloproteinase inhibitor (TIMP-2) showed an increase in the group that received four instillations of plasma. There was a significant increase in the gene expression of HPSE, MMP-9, and TGF-β in the group that received four instillations of plasma. In the analysis of the glycosaminoglycans, an increase was observed in the secretion of galactosaminoglycans chondroitin sulfate and dermatan sulfate (CS/DS) in the group that received four instillations of plasma. DISCUSSION Previous studies have demonstrated increased protein expression. of HPSE, MMP-9 and TGF-β with instillation of blood in the TA; however, there was no increase in gene expression. In the present study, the increase in the expression of TGF-β with plasma instillations, proved to be more reliable. The two models with plasma (one or four instillations) demonstrated significant histopathological and molecular changes when compared to the control group. However, only in the group with four plasma instillations there was a macroscopic change. The idea is that repeatedly extravasation of TGF-β present in plasma of predisposed individuals acts as a trigger for the development and maintenance of changes in the extracellular matrix that perpetuate an anomalous inflammatory process present in PD. CONCLUSION The present study shows that the repeated instillation of plasma is a low cost in vivo model for the study of PD.
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Affiliation(s)
- David J Cohen
- ABC Medical School, Urologic Department, Santo Andre, Brazil
| | | | - Vivian B Borba
- ABC Medical School, Urologic Department, Santo Andre, Brazil
| | | | - Giuliana Petri
- ABC Medical School, Experimental Surgery Department, Santo André, Brazil
| | | | - Ana M Mader
- ABC Medical school, Pathology Department, Santo André, Brazil
| | - Sang W Han
- Paulista Medical School, Biochemistry Department, São Paulo, Brazil
| | - Maria A Pinhal
- ABC Medical School, Biochemistry Department, Santo André, Brazil.,Paulista Medical School, Biochemistry Department, São Paulo, Brazil
| | - Sidney Glina
- ABC Medical School, Urologic Department, Santo Andre, Brazil
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18
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Park J, Lee S, Choi J, Choi I. Extra- and Intracellular Monitoring of TGF-β Using Single Immunoplasmonic Nanoprobes. ACS Sens 2021; 6:1823-1830. [PMID: 33755418 DOI: 10.1021/acssensors.0c02723] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Transforming growth factor-β (TGF-β) is a well-known disease-related biomarker associated with fibrotic diseases, and initiation and progression of cancer in many organs. Therefore, quantitative and sensitive detection of TGF-β and similar biomarkers is crucial for patient treatment in the early stages of diagnosis. In many studies, the detection of TGF-β, an important profibrotic and cancer promoting cytokine, has been generally conducted by fluorescence or absorbance-based immunoassays. However, conventional methods for detecting TGF-β have problems including use of time-consuming sample pretreatment steps and multiple reagents for signal amplification and difficulty in real-time detection from living cells. Herein, we present a plasmon-based immunoassay for TGF-β using antibody-conjugated single gold nanoparticles that act as optically excellent intracellular and extracellular detection probes that do not require additional signal amplification. To detect TGF-β sensitively and selectively, we exploited the localized surface plasmon resonance (LSPR) property of antibody-conjugated plasmonic gold nanoparticles at a single particle level. By measuring the LSPR spectral shifts of the single plasmonic nanoprobes, TGF-β can be detected down to the picomolar level, which is comparable with the conventional methods but without significant interference from other proteins. The optimized plasmonic nanoprobes were applied to quantify and monitor the extracellular TGF-β level secreted from the cells under stress conditions, such as cancer, and exposure to toxic environments. Owing to the ease of cellular internalization of the nanoprobes, we directly image and detect increases in intracellular TGF-β levels in living cells under the given stress conditions without cell lysis. We envision that this strategy of using individual nanoparticles as sensors to monitor protein biomarkers in living cells could be applied for various biological assays and diagnosis.
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Affiliation(s)
- Junhee Park
- Department of Life Science, University of Seoul, Seoul 02054, South Korea
| | - Seungki Lee
- Department of Life Science, University of Seoul, Seoul 02054, South Korea
| | - Jinhee Choi
- School of Environmental Engineering, University of Seoul, Seoul 02054, South Korea
| | - Inhee Choi
- Department of Life Science, University of Seoul, Seoul 02054, South Korea
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19
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Pascual AS, Rapanan JL, Uppalapati CK, Cooper KE, Leyva KJ, Hull EE. Dual inhibition of TGFβR and ROCK reverses the epithelial to mesenchymal transition in collectively migrating zebrafish keratocytes. Cell Biol Int 2021; 45:1288-1295. [PMID: 33710707 PMCID: PMC8252571 DOI: 10.1002/cbin.11587] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 01/19/2021] [Accepted: 02/07/2021] [Indexed: 01/14/2023]
Abstract
There is a growing controversy about the role of the epithelial to mesenchymal transition (EMT) in the fibrosis associated with chronic disease. Recent studies suggest that it is not the EMT transcriptional program but differentiation of progenitor cells, response to chronic inflammation, or some combination of both which cause the appearance of fibroblasts and the production of the extracellular matrix. To address this issue, we study the EMT process in the zebrafish keratocytes which migrate from primary explants of epithelial tissue as these cells are both terminally differentiated and able to divide. To firmly place this EMT process in the context of other systems, we first demonstrate that the zebrafish keratocyte EMT process involves nuclear accumulation of twist and snail/slug transcription factors as part of a TGFβR‐mediated EMT process. As assessed by the expression and localization of EMT transcription factors, the zebrafish keratocyte EMT process is reversed by the addition of Rho‐activated kinase (ROCK) in combination with TGFβR inhibitors. The complete cycle of EMT to MET observed in this system links these in vitro results more closely to the process of wound healing in vivo. However, the absence of observable activation of EMT transcription factors when keratocytes are cultured on compliant substrata in a TGFβ1‐containing medium suggests that ROCK signaling, initiated by tension within the sheet, is an essential contributor to the EMT process. Most importantly, the requirement for ROCK activation by culturing on noncompliant substrata suggests that EMT in these terminally differentiated cells would not occur in vivo.
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Affiliation(s)
- Agnes S Pascual
- Biomedical Sciences Program, College of Graduate Studies, Midwestern University, Glendale, Arizona, USA
| | - Jose L Rapanan
- Arizona College of Osteopathic Medicine, Midwestern University, Glendale, Arizona, USA
| | - Chandana K Uppalapati
- Department of Microbiology & Immunology, College of Graduate Studies, Midwestern University, Glendale, Arizona, USA
| | - Kimbal E Cooper
- Biomedical Sciences Program, College of Graduate Studies, Midwestern University, Glendale, Arizona, USA
| | - Kathryn J Leyva
- Department of Microbiology & Immunology, College of Graduate Studies, Midwestern University, Glendale, Arizona, USA
| | - Elizabeth E Hull
- Biomedical Sciences Program, College of Graduate Studies, Midwestern University, Glendale, Arizona, USA
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20
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Sriphoosanaphan S, Thanapirom K, Kerr SJ, Suksawatamnuay S, Thaimai P, Sittisomwong S, Sonsiri K, Srisoonthorn N, Teeratorn N, Tanpowpong N, Chaopathomkul B, Treeprasertsuk S, Poovorawan Y, Komolmit P. Effect of vitamin D supplementation in patients with chronic hepatitis C after direct-acting antiviral treatment: a randomized, double-blind, placebo-controlled trial. PeerJ 2021; 9:e10709. [PMID: 33614272 PMCID: PMC7879942 DOI: 10.7717/peerj.10709] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Accepted: 12/15/2020] [Indexed: 12/16/2022] Open
Abstract
Background Replacement of vitamin D (VD) among patients with chronic hepatitis C (CHC) before viral eradication has demonstrated a protective effect on serum markers associated with hepatic fibrogenesis. We therefore hypothesized that VD may facilitate further fibrosis amelioration following curative treatment with direct-acting antivirals (DAA). Methods This study was a randomized, double-blind, placebo-controlled trial conducted between February 2018 and August 2018. Patients with CHC and VD deficiency were randomized in a 1:1 ratio to either receive ergicalciferol or placebo over 6 weeks. Biochemical analysis indicators, including 25-hydroxyvitamin D (25(OH)D), fibrogenic markers [(transforming growth factor beta 1 (TGF-β1) and tissue inhibitors of matrix metalloproteinases 1 (TIMP-1)], and fibrolytic markers [matrix metalloproteinase 9 (MMP-9) and amino terminal type III procollagen peptide (P3NP)], were assessed at baseline and at 6 weeks. Serum 25(OH)D was analyzed by a chemiluminescence immunoassay. Serum hepatic fibrogenesis markers were measured using a quantitative sandwich enzyme-linked immunosorbent assay. Results Seventy-five patients with CHC and VD deficiency were randomly assigned to VD (n = 37) and placebo (n = 38) groups. At the end of the study, the mean serum 25(OH)D level had risen to a normal level in the VD group, but was still deficient in the placebo group (41.8 ± 9.1 vs. 18.1 ± 4.6 ng/mL, p < 0.001). Upon restoration of the VD level, there were no significant mean differences in the change from baseline for TGF-β1 (-0.6 ng/mL (95% confidence interval (95% CI) [-2.8-1.7]), p = 0.63), TIMP-1 (-5.5 ng/mL (95% CI [-26.4 -15.3]), p = 0.60), MMP-9 (122.9 ng/mL (95% CI [-69.0 -314.8]), p = 0.21), and P3NP (-0.1 ng/mL (95% CI [-2.4 -2.2]), p = 0.92) between the VD and placebo groups. Conclusion Short-term VD supplementation after DAA treatment in patients with CHC does not improve serum fibrogenesis markers and may not expedite the residual liver fibrosis healing process. Future studies are warranted to evaluate the long-term effect of VD supplementation on hepatic fibrosis regression.
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Affiliation(s)
- Supachaya Sriphoosanaphan
- Division of Gastroenterology, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.,Center of Excellence in Liver Diseases, Thai Red Cross, King Chulalongkorn Memorial Hospital, Bangkok, Thailand
| | - Kessarin Thanapirom
- Division of Gastroenterology, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.,Center of Excellence in Liver Diseases, Thai Red Cross, King Chulalongkorn Memorial Hospital, Bangkok, Thailand.,Liver Fibrosis and Cirrhosis Research Unit, Chulalongkorn University, Bangkok, Thailand
| | - Stephen J Kerr
- Biostatistics Excellence Center, Department of Research Affairs, Chulalongkorn University, Bangkok, Thailand
| | - Sirinporn Suksawatamnuay
- Division of Gastroenterology, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.,Center of Excellence in Liver Diseases, Thai Red Cross, King Chulalongkorn Memorial Hospital, Bangkok, Thailand.,Liver Fibrosis and Cirrhosis Research Unit, Chulalongkorn University, Bangkok, Thailand
| | - Panarat Thaimai
- Division of Gastroenterology, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Sukanya Sittisomwong
- Division of Gastroenterology, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Kanokwan Sonsiri
- Division of Gastroenterology, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Nunthiya Srisoonthorn
- Center of Excellence in Liver Diseases, Thai Red Cross, King Chulalongkorn Memorial Hospital, Bangkok, Thailand
| | - Nicha Teeratorn
- Division of Gastroenterology, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Natthaporn Tanpowpong
- Department of Radiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Bundit Chaopathomkul
- Department of Radiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Sombat Treeprasertsuk
- Division of Gastroenterology, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Yong Poovorawan
- Center of Excellence in Clinical Virology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Piyawat Komolmit
- Division of Gastroenterology, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.,Center of Excellence in Liver Diseases, Thai Red Cross, King Chulalongkorn Memorial Hospital, Bangkok, Thailand.,Liver Fibrosis and Cirrhosis Research Unit, Chulalongkorn University, Bangkok, Thailand
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21
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Bakker W, Dingenouts CKE, Lodder K, Wiesmeijer KC, de Jong A, Kurakula K, Mager HJJ, Smits AM, de Vries MR, Quax PHA, Goumans MJTH. BMP Receptor Inhibition Enhances Tissue Repair in Endoglin Heterozygous Mice. Int J Mol Sci 2021; 22:2010. [PMID: 33670533 PMCID: PMC7922601 DOI: 10.3390/ijms22042010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 02/02/2021] [Accepted: 02/08/2021] [Indexed: 12/12/2022] Open
Abstract
Hereditary hemorrhagic telangiectasia type 1 (HHT1) is a severe vascular disorder caused by mutations in the TGFβ/BMP co-receptor endoglin. Endoglin haploinsufficiency results in vascular malformations and impaired neoangiogenesis. Furthermore, HHT1 patients display an impaired immune response. To date it is not fully understood how endoglin haploinsufficient immune cells contribute to HHT1 pathology. Therefore, we investigated the immune response during tissue repair in Eng+/- mice, a model for HHT1. Eng+/- mice exhibited prolonged infiltration of macrophages after experimentally induced myocardial infarction. Moreover, there was an increased number of inflammatory M1-like macrophages (Ly6Chigh/CD206-) at the expense of reparative M2-like macrophages (Ly6Clow/CD206+). Interestingly, HHT1 patients also showed an increased number of inflammatory macrophages. In vitro analysis revealed that TGFβ-induced differentiation of Eng+/- monocytes into M2-like macrophages was blunted. Inhibiting BMP signaling by treating monocytes with LDN-193189 normalized their differentiation. Finally, LDN treatment improved heart function after MI and enhanced vascularization in both wild type and Eng+/- mice. The beneficial effect of LDN was also observed in the hind limb ischemia model. While blood flow recovery was hampered in vehicle-treated animals, LDN treatment improved tissue perfusion recovery in Eng+/- mice. In conclusion, BMPR kinase inhibition restored HHT1 macrophage imbalance in vitro and improved tissue repair after ischemic injury in Eng+/- mice.
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Affiliation(s)
- Wineke Bakker
- Department of Cell and Chemical Biology, Leiden University Medical Center, 2333 ZC Leiden, The Netherlands; (W.B.); (C.K.E.D.); (K.L.); (K.C.W.); (K.K.); (A.M.S.)
| | - Calinda K. E. Dingenouts
- Department of Cell and Chemical Biology, Leiden University Medical Center, 2333 ZC Leiden, The Netherlands; (W.B.); (C.K.E.D.); (K.L.); (K.C.W.); (K.K.); (A.M.S.)
| | - Kirsten Lodder
- Department of Cell and Chemical Biology, Leiden University Medical Center, 2333 ZC Leiden, The Netherlands; (W.B.); (C.K.E.D.); (K.L.); (K.C.W.); (K.K.); (A.M.S.)
| | - Karien C. Wiesmeijer
- Department of Cell and Chemical Biology, Leiden University Medical Center, 2333 ZC Leiden, The Netherlands; (W.B.); (C.K.E.D.); (K.L.); (K.C.W.); (K.K.); (A.M.S.)
| | - Alwin de Jong
- Department of Surgery, Leiden University Medical Center, 2333 ZC Leiden, The Netherlands; (A.d.J.); (M.R.d.V.); (P.H.A.Q.)
| | - Kondababu Kurakula
- Department of Cell and Chemical Biology, Leiden University Medical Center, 2333 ZC Leiden, The Netherlands; (W.B.); (C.K.E.D.); (K.L.); (K.C.W.); (K.K.); (A.M.S.)
| | | | - Anke M. Smits
- Department of Cell and Chemical Biology, Leiden University Medical Center, 2333 ZC Leiden, The Netherlands; (W.B.); (C.K.E.D.); (K.L.); (K.C.W.); (K.K.); (A.M.S.)
| | - Margreet R. de Vries
- Department of Surgery, Leiden University Medical Center, 2333 ZC Leiden, The Netherlands; (A.d.J.); (M.R.d.V.); (P.H.A.Q.)
| | - Paul H. A. Quax
- Department of Surgery, Leiden University Medical Center, 2333 ZC Leiden, The Netherlands; (A.d.J.); (M.R.d.V.); (P.H.A.Q.)
| | - Marie José T. H. Goumans
- Department of Cell and Chemical Biology, Leiden University Medical Center, 2333 ZC Leiden, The Netherlands; (W.B.); (C.K.E.D.); (K.L.); (K.C.W.); (K.K.); (A.M.S.)
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22
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Teicher BA. TGFβ-Directed Therapeutics: 2020. Pharmacol Ther 2021; 217:107666. [PMID: 32835827 PMCID: PMC7770020 DOI: 10.1016/j.pharmthera.2020.107666] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 08/17/2020] [Accepted: 08/17/2020] [Indexed: 12/14/2022]
Abstract
The transforming growth factor-beta (TGFβ) pathway is essential during embryo development and in maintaining normal homeostasis. During malignancy, the TGFβ pathway is co-opted by the tumor to increase fibrotic stroma, to promote epithelial to mesenchymal transition increasing metastasis and producing an immune-suppressed microenvironment which protects the tumor from recognition by the immune system. Compelling preclinical data demonstrate the therapeutic potential of blocking TGFβ function in cancer. However, the TGFβ pathway cannot be described as a driver of malignant disease. Two small molecule kinase inhibitors which block the serine-threonine kinase activity of TGFβRI on TGFβRII, a pan-TGFβ neutralizing antibody, a TGFβ trap, a TGFβ antisense agent, an antibody which stabilizes the latent complex of TGFβ and a fusion protein which neutralizes TGFβ and binds PD-L1 are in clinical development. The challenge is how to most effectively incorporate blocking TGFβ activity alone and in combination with other therapeutics to improve treatment outcome.
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Affiliation(s)
- Beverly A Teicher
- Developmental Therapeutics Program, DCTD, National Cancer Institute, RM 4-W602, MSC 9735, 9609 Medical Center Drive, Bethesda, MD 20892, USA.
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23
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Cui JZ, Harris KC, Raedschelders K, Hollander Z, Potts JE, De Souza A, Kiess M, McManus BM, Bernatchez P, Raffin LA, Paine H, van Breemen C, Sandor GGS, Esfandiarei M. Aortic Dimensions, Biophysical Properties, and Plasma Biomarkers in Children and Adults with Marfan or Loeys-Dietz Syndrome. CJC Open 2020; 3:585-594. [PMID: 34027363 PMCID: PMC8134910 DOI: 10.1016/j.cjco.2020.12.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 12/20/2020] [Indexed: 12/13/2022] Open
Abstract
Background Aortic dilation, stiffening, and dissection are common and potentially lethal complications of Marfan syndrome (MFS) and Loeys-Dietz syndrome (LDS), which involve abnormal transforming growth factor beta (TGF-β) signalling. The relation of aortic dimensions, stiffness, and biomarker levels is unknown. The objective of this study was to measure aortic dimensions, stiffness, TGF-β and matrix metalloproteinase (MMP) levels, and endothelial function in patients with MFS, and to compare TGF-β levels in patients with MFS receiving different therapeutic regimens. Methods This was a cohort study of 40 MFS and 4 LDS patients and 87 control participants. Aortic dimension and stiffness indexes, including pulse wave velocity (PWV), were measured using echocardiography and Doppler. Total and free TGF-β and MMP blood levels were measured using Quantikine (R&D Systems, Inc, Minneapolis, MN) and Quanterix (Billerica, MA) kits. Endothelial function was measured using brachial artery flow-mediated dilation. Results PWV was increased in patients with MFS. There were increased MMP-2 levels in those with MFS but no increase in free or total TGF-β or MMP-9 levels compared with control participants. There was no difference in TGF-β levels between MFS patients receiving no medications, angiotensin receptor blockers, and β-blockers. PWV correlated most strongly with age. Endothelial function showed premature gradual decline in patients with MFS. Conclusions Despite the increased PWV, monitoring aortic stiffness or TGF-β levels would not be helpful in patients with MFS. TGF-β levels were not increased and the increased MMP-2 levels suggest consideration of a different therapeutic target.
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Affiliation(s)
- Jason Z Cui
- Department of Anesthesiology, Pharmacology and Therapeutics, British Columbia Children's Hospital Child and Family Research Institute, University of British Columbia, Vancouver, British Columbia, Canada.,Department of Cardiothoracic Surgery, School of Medicine, Stanford University, Palo Alto, California, USA
| | - Kevin C Harris
- Children's Heart Centre, British Columbia Children's Hospital, University of British Columbia, Vancouver, British Columbia, Canada
| | - Koen Raedschelders
- Advanced Clinical Biosystems Research Institute at Smidt Heart Institute, Los Angeles, California, USA
| | - Zsuzsanna Hollander
- UBC James Hogg Research Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | - James E Potts
- Children's Heart Centre, British Columbia Children's Hospital, University of British Columbia, Vancouver, British Columbia, Canada
| | - Astrid De Souza
- Children's Heart Centre, British Columbia Children's Hospital, University of British Columbia, Vancouver, British Columbia, Canada
| | - Marla Kiess
- Division of Cardiology, St Paul's Hospital, Vancouver, British Columbia, Canada
| | - Bruce M McManus
- UBC James Hogg Research Centre, University of British Columbia, Vancouver, British Columbia, Canada.,Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Pascal Bernatchez
- Department of Anesthesiology, Pharmacology and Therapeutics, Centre for Heart and Lung Innovation, St Paul's Hospital, University of British Columbia, Vancouver, British Columbia, Canada
| | - Leslie A Raffin
- Children's Heart Centre, British Columbia Children's Hospital, University of British Columbia, Vancouver, British Columbia, Canada
| | - Heidi Paine
- Children's Heart Centre, British Columbia Children's Hospital, University of British Columbia, Vancouver, British Columbia, Canada
| | - Cornelis van Breemen
- Department of Anesthesiology, Pharmacology and Therapeutics, British Columbia Children's Hospital Child and Family Research Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - George G S Sandor
- Children's Heart Centre, British Columbia Children's Hospital, University of British Columbia, Vancouver, British Columbia, Canada
| | - Mitra Esfandiarei
- Department of Anesthesiology, Pharmacology and Therapeutics, British Columbia Children's Hospital Child and Family Research Institute, University of British Columbia, Vancouver, British Columbia, Canada.,Department of Biomedical Sciences, College of Graduate Studies, Midwestern University, Glendale, Arizona, USA
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24
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Dickinson M, Kliszczak AE, Giannoulatou E, Peppa D, Pellegrino P, Williams I, Drakesmith H, Borrow P. Dynamics of Transforming Growth Factor (TGF)-β Superfamily Cytokine Induction During HIV-1 Infection Are Distinct From Other Innate Cytokines. Front Immunol 2020; 11:596841. [PMID: 33329587 PMCID: PMC7732468 DOI: 10.3389/fimmu.2020.596841] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Accepted: 10/27/2020] [Indexed: 12/27/2022] Open
Abstract
Human immunodeficiency virus type 1 (HIV-1) infection triggers rapid induction of multiple innate cytokines including type I interferons, which play important roles in viral control and disease pathogenesis. The transforming growth factor (TGF)-β superfamily is a pleiotropic innate cytokine family, some members of which (activins and bone morphogenetic proteins (BMPs)) were recently demonstrated to exert antiviral activity against Zika and hepatitis B and C viruses but are poorly studied in HIV-1 infection. Here, we show that TGF-β1 is systemically induced with very rapid kinetics (as early as 1-4 days after viremic spread begins) in acute HIV-1 infection, likely due to release from platelets, and remains upregulated throughout infection. Contrastingly, no substantial systemic upregulation of activins A and B or BMP-2 was observed during acute infection, although plasma activin levels trended to be elevated during chronic infection. HIV-1 triggered production of type I interferons but not TGF-β superfamily cytokines from plasmacytoid dendritic cells (DCs) in vitro, putatively explaining their differing in vivo induction; whilst lipopolysaccharide (but not HIV-1) elicited activin A production from myeloid DCs. These findings underscore the need for better definition of the protective and pathogenic capacity of TGF-β superfamily cytokines, to enable appropriate modulation for therapeutic purposes.
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Affiliation(s)
- Matthew Dickinson
- Nuffield Department of Clinical Medicine, University of Oxford, Oxford, United Kingdom.,MRC Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom
| | - Anna E Kliszczak
- Nuffield Department of Clinical Medicine, University of Oxford, Oxford, United Kingdom
| | - Eleni Giannoulatou
- Computational Genomics Laboratory, Victor Chang Cardiac Research Institute, Sydney, NSW, Australia.,St Vincent's Clinical School, University of New South Wales, Sydney, NSW, Australia
| | - Dimitra Peppa
- Nuffield Department of Clinical Medicine, University of Oxford, Oxford, United Kingdom.,Mortimer Market Centre, Department of HIV, CNWL NHS Trust, London, United Kingdom
| | - Pierre Pellegrino
- Centre for Sexual Health and HIV Research, University College London, London, United Kingdom
| | - Ian Williams
- Centre for Sexual Health and HIV Research, University College London, London, United Kingdom
| | - Hal Drakesmith
- MRC Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom
| | - Persephone Borrow
- Nuffield Department of Clinical Medicine, University of Oxford, Oxford, United Kingdom
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25
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Molecular Mechanisms of Central Nervous System Axonal Regeneration and Remyelination: A Review. Int J Mol Sci 2020; 21:ijms21218116. [PMID: 33143194 PMCID: PMC7662268 DOI: 10.3390/ijms21218116] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 10/27/2020] [Accepted: 10/27/2020] [Indexed: 12/13/2022] Open
Abstract
Central nervous system (CNS) injury, including stroke, spinal cord injury, and traumatic brain injury, causes severe neurological symptoms such as sensory and motor deficits. Currently, there is no effective therapeutic method to restore neurological function because the adult CNS has limited capacity to regenerate after injury. Many efforts have been made to understand the molecular and cellular mechanisms underlying CNS regeneration and to establish novel therapeutic methods based on these mechanisms, with a variety of strategies including cell transplantation, modulation of cell intrinsic molecular mechanisms, and therapeutic targeting of the pathological nature of the extracellular environment in CNS injury. In this review, we will focus on the mechanisms that regulate CNS regeneration, highlighting the history, recent efforts, and questions left unanswered in this field.
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26
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Rodriguez AE, Gisbert S, Palazón A, Alio JL. Quantification of Growth Factors and Fibronectin in Diverse Preparations of Platelet-Rich Plasma for the Treatment of Ocular Surface Disorders (E-PRP). Transl Vis Sci Technol 2020; 9:22. [PMID: 32821519 PMCID: PMC7409215 DOI: 10.1167/tvst.9.6.22] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Accepted: 03/26/2020] [Indexed: 01/11/2023] Open
Abstract
Purpose The purpose of this study was to quantify the presence of growth factors (GFs) and fibronectin in autologous platelet-rich plasma for topical ocular use (E-PRP) comparing their concentration when different preparation and preservation procedures were applied. Methods E-PRP was prepared with blood from healthy volunteers. The count of platelets, leukocytes, and red blood cells in the whole blood and E-PRP were performed. The concentration of the GFs platelet-derived growth factor BB (PDGF-BB), transforming growth factor β1 (TGF-β1), epidermal growth factor (EGF), vascular endothelial growth factor A (VEGF-A), and fibronectin was determined in each of the four procedures applied including fresh, frozen at −20°C for 3 months, fresh-spin, and frozen-spin at −20°C E-PRP samples. Posterior statistical analysis was performed to establish significant differences between groups and between GFs in relation to the amounts of platelets. Results Platelets in the E-PRP doubled in the number of basal values of whole blood (P ≤ 0.01). The blood cells in the E-PRP decreased drastically in red cells (99%) and also in leukocytes (82%). The concentration of PDGF-BB and EGF was significantly higher (P < 0.01) when the E-PRP samples were frozen at −20°C. However, no significant differences were observed for TGF-β1, VEGF-A, and fibronectin (P > 0.05). The concentration of GFs in the E-PRP did not necessarily correlate with the number of platelets. Conclusions Freezing the E-PRP for 3 months at −20°C increased the concentration of important proteins, such as PDGF-BB and EGF, and maintained the levels of others. These findings are essential because treatments, such as E-PRP, used by patients with ocular surface dysfunctions tend to prolong it in time. In addition, subsequent centrifugation of the E-PRP decreased the values of TFG-β1, but not the other GFs, which would allow adjusting the concentration of TFG-β1, as necessary. This procedure guarantees their correct conservation and viability. Translational Relevance This work demonstrates how clinical application can be improved by starting from basic research. The quantification of GFs and fibronectin in platelet-rich plasma (PRP) helps to clarify which is the best mode of preparation and preservation of PRP for clinical applications. This allows to optimize the product that is delivered to the patients as a treatment for the dysfunctions of the ocular surface, guaranteeing that the conservation does not affect at all the quality of the PRP that it is going to be used.
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Affiliation(s)
- Alejandra E Rodriguez
- Research and Development Laboratory, Vissum Miranza, Alicante, Spain.,Department of Cornea and Refractive Surgery, Vissum Miranza, Alicante, Spain.,Department of Ophthalmology, Miguel Hernandez University, Alicante, Spain
| | - Sandra Gisbert
- Research and Development Laboratory, Vissum Miranza, Alicante, Spain
| | - Antonio Palazón
- Department of Clinical Medicine, Miguel Hernandez University, Alicante, Spain
| | - Jorge L Alio
- Department of Cornea and Refractive Surgery, Vissum Miranza, Alicante, Spain.,Department of Ophthalmology, Miguel Hernandez University, Alicante, Spain
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27
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Abstract
Inherited thoracic aortopathies denote a group of congenital conditions that predispose to disease of the thoracic aorta. Aortic wall weakness and abnormal aortic hemodynamic profiles predispose these patients to dilatation of the thoracic aorta, which is generally silent but can precipitate aortic dissection or rupture with devastating and often fatal consequences. Current strategies to assess the future risk of aortic dissection or rupture are based primarily on monitoring aortic diameter. However, diameter alone is a poor predictor of risk, with many patients experiencing dissection or rupture below current intervention thresholds. Developing tools that improve the risk assessment of those with aortopathy is internationally regarded as a research priority. A robust understanding of the molecular pathways that lead to aortic wall weakness is required to identify biomarkers and therapeutic targets that could improve patient management. Here, we summarize the current understanding of the genetically determined mechanisms underlying inherited aortopathies and critically appraise the available blood biomarkers, imaging techniques, and therapeutic targets that have shown promise for improving the management of patients with these important and potentially fatal conditions.
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Affiliation(s)
- Alexander J. Fletcher
- University of Edinburgh Centre for Cardiovascular Science, Royal Infirmary of Edinburgh, United Kingdom (A.J.F., M.B.J.S., D.E.N., N.L.W.)
| | - Maaz B.J. Syed
- University of Edinburgh Centre for Cardiovascular Science, Royal Infirmary of Edinburgh, United Kingdom (A.J.F., M.B.J.S., D.E.N., N.L.W.)
| | - Timothy J. Aitman
- Centre for Genomics and Experimental Medicine, MRC Institute of Genetics and Molecular Medicine, University of Edinburgh, United Kingdom (T.J.A.)
| | - David E. Newby
- University of Edinburgh Centre for Cardiovascular Science, Royal Infirmary of Edinburgh, United Kingdom (A.J.F., M.B.J.S., D.E.N., N.L.W.)
| | - Niki L. Walker
- University of Edinburgh Centre for Cardiovascular Science, Royal Infirmary of Edinburgh, United Kingdom (A.J.F., M.B.J.S., D.E.N., N.L.W.)
- Scottish Adult Congenital Heart Disease Service, Golden Jubilee National Hospital, Clydebank, Glasgow, United Kingdom (N.L.W.)
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28
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de Jong GM, McCall MBB, Dik WA, Urbanus RT, Wammes LJ, Koelewijn R, Sauerwein RW, Verbon A, van Hellemond JJ, van Genderen PJJ. Transforming growth factor-beta profiles correlate with clinical symptoms and parameters of haemostasis and inflammation in a controlled human malaria infection. Cytokine 2019; 125:154838. [PMID: 31525609 DOI: 10.1016/j.cyto.2019.154838] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 08/09/2019] [Accepted: 09/04/2019] [Indexed: 12/23/2022]
Abstract
BACKGROUND After a controlled human malaria infection (CHMI), presentation of clinical signs and symptoms and host responses is heterogeneous. Transforming growth factor-beta (TGF-β) is the first serum cytokine that changes in malaria-naïve volunteers after CHMI. We studied a possible relation between TGF-β changes, pro-inflammatory cytokines, activation of haemostasis and endothelial cells and clinical symptoms. METHODS A panel of cytokines including TGF-β, and markers of activation of haemostasis and endothelial cells were measured in blood samples of 15 volunteers at baseline before CHMI and during CHMI at day of treatment. The change of the parameters on the day of treatment was examined for a significant alteration during infection. RESULTS Nine of 15 volunteers showed a significant decrease in TGF-β compared to baseline, with concomitant increased concentrations of D-dimer (p = 0.012), Von Willebrand factor (p = 0.017), IL-6 (p = 0.012) and IFN-γ (0.028) and a significantly decreased platelet count (p = 0.011). In contrast, 6 of 15 volunteers showed sustained or increased TGF-β concentrations without change in the aforementioned parameters. The sustained responders presented with less moderate and severe clinical symptoms than the negative responders (p = 0.036) and had a higher baseline lymphocyte count (p = 0.026). TGF-β concentrations did not correlate with the parasitaemia on day of treatment. CONCLUSION Early decreases of serum TGF-β might function a marker for a pro-inflammatory host response and downstream clinical symptoms and pathology during CHMI.
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Affiliation(s)
- Gerdie M de Jong
- Department of Medical Microbiology & Infectious Diseases, Erasmus MC University Medical Center, Rotterdam 3015 GD, the Netherlands
| | - Matthew B B McCall
- Department of Medical Microbiology & Infectious Diseases, Erasmus MC University Medical Center, Rotterdam 3015 GD, the Netherlands; Department of Medical Microbiology, Radboud University Medical Center, Nijmegen 6500HB, the Netherlands
| | - Willem A Dik
- Department of Immunology, Laboratory Medical Immunology, Erasmus MC University Medical Center, Rotterdam 3015GD, the Netherlands
| | - Rolf T Urbanus
- Department of Clinical Chemistry and Haematology, 3584 CX, University Medical Center, Utrecht, the Netherlands
| | - Linda J Wammes
- Department of Medical Microbiology & Infectious Diseases, Erasmus MC University Medical Center, Rotterdam 3015 GD, the Netherlands
| | - Rob Koelewijn
- Department of Medical Microbiology & Infectious Diseases, Erasmus MC University Medical Center, Rotterdam 3015 GD, the Netherlands
| | - Robert W Sauerwein
- Department of Medical Microbiology, Radboud University Medical Center, Nijmegen 6500HB, the Netherlands
| | - Annelies Verbon
- Department of Medical Microbiology & Infectious Diseases, Erasmus MC University Medical Center, Rotterdam 3015 GD, the Netherlands
| | - Jaap J van Hellemond
- Department of Medical Microbiology & Infectious Diseases, Erasmus MC University Medical Center, Rotterdam 3015 GD, the Netherlands
| | - Perry J J van Genderen
- Department of Medical Microbiology & Infectious Diseases, Erasmus MC University Medical Center, Rotterdam 3015 GD, the Netherlands.
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29
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Samiei H, Sadighi-Moghaddam B, Mohammadi S, Gharavi A, Abdolmaleki S, Khosravi A, Kokhaei P, Bazzazi H, Memarian A. Dysregulation of helper T lymphocytes in esophageal squamous cell carcinoma (ESCC) patients is highly associated with aberrant production of miR-21. Immunol Res 2019; 67:212-222. [PMID: 31278653 DOI: 10.1007/s12026-019-09079-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Dysregulation of helper T (Th) cell subsets has been contributed to the initiation and propagation of esophageal squamous cell carcinoma (ESCC). Different microRNAs (miRNAs) have been reported to control the development and functions of tumor-associated immune cells in ESCC. Here, we aimed to assess the IL-10, TGF-β, IFN-γ, and IL-17a-producing CD3+CD8- T cells in association whit miR-21, miR-29b, miR-106a, and miR-155 expression in ESCC patients. A total of 34 ESCC patients including 12 newly diagnosed (ND) and 22 under-treatment (UT) cases and also 34 age-matched healthy donors were enrolled. Flow cytometric characterization of stimulated T cells was performed by staining of the cells with fluorescent conjugated specific anti-human CD3 and CD8 cell surface markers as well as IL-17a, IFN-γ, IL-10, and TGF-β intracytoplasmic cytokines. Circulating RNA was extracted from the plasma, and qRT-PCR was used to evaluate the expression of microRNAs. TGF-β plasma levels were also assessed by ELISA. Results showed that the frequency of Th cells was significantly reduced in patients. A significant increase in Treg as well as Th17 cells population in both patient subgroups was observed. ND patients showed elevated level of Th1 cells and IL-10. However the mean expression of IFN-γ was significantly decreased in Th cells. We also detected higher level of miR-21 in the ESCC patients which was significantly correlated with different subsets of Th cells. Our findings revealed that immune response related to the Th cells is highly impaired in ESCC patients. Association between miR-21 and Th subsets could be correlated with the impairment of anti-tumor immunity and ESCC pathogenesis, which could be potentially used as an important target for immunotherapeutic approaches.
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Affiliation(s)
- Hadiseh Samiei
- Student Research Committee, Department of Immunology, Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | - Bizhan Sadighi-Moghaddam
- Cancer Research Center, Semnan University of Medical Sciences, Semnan, Iran
- Department of Immunology, Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | - Saeed Mohammadi
- Infectious Diseases Research Center, Golestan University of Medical Sciences, Gorgan, Iran
- Stem Cell Research center, Golestan University of Medical Sciences, Gorgan, Iran
| | - Abdolsamad Gharavi
- Digestive Oncology Research Center, Digestive Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran
- Golestan Research Center of Gastroenterology and Hepatology, Golestan University of Medical Sciences, Gorgan, Iran
| | - Sara Abdolmaleki
- Student Research Committee, Department of Immunology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Ayyoob Khosravi
- Stem Cell Research center, Golestan University of Medical Sciences, Gorgan, Iran
- Department of Molecular Medicine, School of Advanced Technologies in Medicine, Golestan University of Medical Sciences, Gorgan, Iran
| | - Parviz Kokhaei
- Cancer Research Center, Semnan University of Medical Sciences, Semnan, Iran
- Immune and Gene Therapy Laboratory, Cancer Centre Karolinska, Department of Oncology and Pathology, Karolinska Institute, Stockholm, Sweden
| | - Hadi Bazzazi
- Department of Molecular Medicine, School of Advanced Technologies in Medicine, Golestan University of Medical Sciences, Gorgan, Iran
- Department of Medical Laboratory Sciences, Gorgan Branch, Islamic Azad University, Gorgan, Iran
| | - Ali Memarian
- Golestan Research Center of Gastroenterology and Hepatology, Golestan University of Medical Sciences, Gorgan, Iran.
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Hamaguchi M, Muramatsu R, Fujimura H, Mochizuki H, Kataoka H, Yamashita T. Circulating transforming growth factor-β1 facilitates remyelination in the adult central nervous system. eLife 2019; 8:41869. [PMID: 31071011 PMCID: PMC6508935 DOI: 10.7554/elife.41869] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Accepted: 04/26/2019] [Indexed: 12/11/2022] Open
Abstract
Oligodendrocyte maturation is necessary for functional regeneration in the CNS; however, the mechanisms by which the systemic environment regulates oligodendrocyte maturation is unclear. We found that Transforming growth factor (TGF)-β1, which is present in higher levels in the systemic environment, promotes oligodendrocyte maturation. Oligodendrocyte maturation was enhanced by adult mouse serum treatment via TGF-β type I receptor. Decrease in circulating TGF-β1 level prevented remyelination in the spinal cord after toxin-induced demyelination. TGF-β1 administration promoted remyelination and restored neurological function in a multiple sclerosis animal model. Furthermore, TGF-β1 treatment stimulated human oligodendrocyte maturation. These data provide the therapeutic possibility of TGF-β for demyelinating diseases.
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Affiliation(s)
- Machika Hamaguchi
- Department of Molecular Neuroscience, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Rieko Muramatsu
- Department of Molecular Neuroscience, Graduate School of Medicine, Osaka University, Suita, Japan.,Department of Molecular Pharmacology, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Kodaira, Japan.,WPI Immunology Frontier Research Center, Osaka University, Suita, Japan
| | | | - Hideki Mochizuki
- Department of Neurology, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Hirotoshi Kataoka
- Department of Neuro-Medical Science, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Toshihide Yamashita
- Department of Molecular Neuroscience, Graduate School of Medicine, Osaka University, Suita, Japan.,WPI Immunology Frontier Research Center, Osaka University, Suita, Japan.,Department of Neuro-Medical Science, Graduate School of Medicine, Osaka University, Suita, Japan.,Graduate School of Frontier Biosciences, Osaka University, Suita, Japan
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Low EL, Baker AH, Bradshaw AC. TGFβ, smooth muscle cells and coronary artery disease: a review. Cell Signal 2019; 53:90-101. [PMID: 30227237 PMCID: PMC6293316 DOI: 10.1016/j.cellsig.2018.09.004] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Revised: 09/06/2018] [Accepted: 09/06/2018] [Indexed: 12/15/2022]
Abstract
Excessive vascular smooth muscle cell (SMC) proliferation, migration and extracellular matrix (ECM) synthesis are key events in the development of intimal hyperplasia, a pathophysiological response to acute or chronic sources of vascular damage that can lead to occlusive narrowing of the vessel lumen. Atherosclerosis, the primary cause of coronary artery disease, is characterised by chronic vascular inflammation and dyslipidemia, while revascularisation surgeries such as coronary stenting and bypass grafting represent acute forms of vascular injury. Gene knockouts of transforming growth factor-beta (TGFβ), its receptors and downstream signalling proteins have demonstrated the importance of this pleiotropic cytokine during vasculogenesis and in the maintenance of vascular homeostasis. Dysregulated TGFβ signalling is a hallmark of many vascular diseases, and has been associated with the induction of pathological vascular cell phenotypes, fibrosis and ECM remodelling. Here we present an overview of TGFβ signalling in SMCs, highlighting the ways in which this multifaceted cytokine regulates SMC behaviour and phenotype in cardiovascular diseases driven by intimal hyperplasia.
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Affiliation(s)
- Emma L Low
- Institute for Cardiovascular and Medical Sciences, University of Glasgow, 126 University Place, Glasgow G12 8TA, UK
| | - Andrew H Baker
- Queen's Medical Research Institute, University of Edinburgh, 47 Little Crescent, Edinburgh EH16 4TJ, UK
| | - Angela C Bradshaw
- Institute for Cardiovascular and Medical Sciences, University of Glasgow, 126 University Place, Glasgow G12 8TA, UK.
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Haemmerle M, Stone RL, Menter DG, Afshar-Kharghan V, Sood AK. The Platelet Lifeline to Cancer: Challenges and Opportunities. Cancer Cell 2018; 33:965-983. [PMID: 29657130 PMCID: PMC5997503 DOI: 10.1016/j.ccell.2018.03.002] [Citation(s) in RCA: 348] [Impact Index Per Article: 58.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Revised: 01/08/2018] [Accepted: 03/01/2018] [Indexed: 12/21/2022]
Abstract
Besides their function in limiting blood loss and promoting wound healing, experimental evidence has highlighted platelets as active players in all steps of tumorigenesis including tumor growth, tumor cell extravasation, and metastasis. Additionally, thrombocytosis in cancer patients is associated with adverse patient survival. Due to the secretion of large amounts of microparticles and exosomes, platelets are well positioned to coordinate both local and distant tumor-host crosstalk. Here, we present a review of recent discoveries in the field of platelet biology and the role of platelets in cancer progression as well as challenges in targeting platelets for cancer treatment.
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Affiliation(s)
- Monika Haemmerle
- Department of Gynecologic Oncology, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; Institute of Pathology, Martin Luther University Halle-Wittenberg, 06112 Halle, Germany
| | - Rebecca L Stone
- Department of Obstetrics and Gynecology, Johns Hopkins Hospital, Baltimore, MD 21287-1281, USA
| | - David G Menter
- Department of Gastrointestinal Medical Oncology, Division of Cancer Medicine, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Vahid Afshar-Kharghan
- Division of Internal Medicine, Benign Hematology, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA.
| | - Anil K Sood
- Department of Gynecologic Oncology, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; Center for RNA Interference and Non-Coding RNA, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; Department of Cancer Biology, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA.
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Gender associated muscle-tendon adaptations to resistance training. PLoS One 2018; 13:e0197852. [PMID: 29787583 PMCID: PMC5963774 DOI: 10.1371/journal.pone.0197852] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Accepted: 05/09/2018] [Indexed: 01/20/2023] Open
Abstract
Purpose To compare the relative changes in muscle-tendon complex (MTC) properties following high load resistance training (RT) in young males and females, and determine any link with circulating TGFβ-1 and IGF-I levels. Methods Twenty-eight participants were assigned to a training group and subdivided by sex (T males [TM] aged 20±1 year, n = 8, T females [TF] aged 19±3 year, n = 8), whilst age-matched 6 males and 6 females were assigned to control groups (ConM/F). The training groups completed 8 weeks of resistance training (RT). MTC properties (Vastus Lateralis, VL) physiological cross-sectional area (pCSA), quadriceps torque, patella tendon stiffness [K], Young’s modulus, volume, cross-sectional area, and length, circulating levels of TGFβ-1 and IGF-I were assessed at baseline and post RT. Results Post RT, there was a significant increase in the mechanical and morphological properties of the MTC in both training groups, compared to ConM/F (p<0.001). However, there were no significant sex-specific changes in most MTC variables. There were however significant sex differences in changes in K, with females exhibiting greater changes than males at lower MVC (Maximal Voluntary Contraction) force levels (10% p = 0.030 & 20% MVC p = 0.032) and the opposite effect seen at higher force levels (90% p = 0.040 & 100% MVC p = 0.044). There were significant increases (p<0.05) in IGF-I in both TF and TM following training, with no change in TGFβ-1. There were no gender differences (p>0.05) in IGF-I or TGFβ-1. Interestingly, pooled population data showed that TGFβ-1 correlated with K at baseline, with no correlations identified between IGF-I and MTC properties. Conclusions Greater resting TGFβ-1 levels are associated with superior tendon mechanical properties. RT can impact opposite ends of the patella tendon force-elongation relationship in each sex. Thus, different loading patterns may be needed to maximize resistance training adaptations in each sex.
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Ponomarev ED. Fresh Evidence for Platelets as Neuronal and Innate Immune Cells: Their Role in the Activation, Differentiation, and Deactivation of Th1, Th17, and Tregs during Tissue Inflammation. Front Immunol 2018; 9:406. [PMID: 29599771 PMCID: PMC5863511 DOI: 10.3389/fimmu.2018.00406] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Accepted: 02/14/2018] [Indexed: 01/23/2023] Open
Abstract
Recent studies suggest that in addition to their common function in the regulation of thrombosis and hemostasis, platelets also contribute to tissue inflammation affecting adaptive immunity. Platelets have a number of pro-inflammatory and regulatory mediators stored in their α-granules and dense granules, which are promptly released at sites of inflammation or tissue injury. Platelet-derived mediators include cytokines (IL-1α, IL-1β, and TGFβ1), chemokines (CXCL4 and CCL3), immunomodulatory neurotransmitters (serotonin, dopamine, epinephrine, histamine, and GABA), and other low-molecular-weight mediators. In addition, activated platelets synthesize a number of lipid pro-inflammatory mediators such as platelet-activating factor and prostaglandins/thromboxanes. Notably, platelets express multiple toll-like receptors and MHC class I on their surface and store IgG in their α-granules. Platelet-derived factors are highly effective in directly or indirectly modulating the priming and effector function of various subsets of T cells. Besides secreting soluble factors, activated platelets upregulate a number of integrins, adhesion molecules, and lectins, leading to the formation of platelet–T cells aggregates. Activated platelets are able to instantly release neurotransmitters acting similar to neuronal presynaptic terminals, affecting CD4 T cells and other cells in close contact with them. The formation of platelet–T cell aggregates modulates the functions of T cells via direct cell–cell contact interactions and the local release of soluble factors including neurotransmitters. New data suggest an important role for platelets as neuronal and innate-like cells that directly recognize damage- or pathogen- associated molecular patterns and instantly communicate with T cells.
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Affiliation(s)
- Eugene D Ponomarev
- Faculty of Medicine, School of Biomedical Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong
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New methodologies to accurately assess circulating active transforming growth factor-β1 levels: implications for evaluating heart failure and the impact of left ventricular assist devices. Transl Res 2018; 192:15-29. [PMID: 29175264 PMCID: PMC5811316 DOI: 10.1016/j.trsl.2017.10.006] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Revised: 10/13/2017] [Accepted: 10/18/2017] [Indexed: 02/08/2023]
Abstract
Transforming growth factor-β1 (TGF-β1) has been used as a biomarker in disorders associated with pathologic fibrosis. However, plasma TGF-β1 assessment is confounded by the significant variation in reported normal values, likely reflecting variable release of the large pool of platelet TGF-β1 after blood drawing. Moreover, current assays measure only total TGF-β1, which is dominated by the latent form of TGF-β1 rather than the biologically active form. To address these challenges, we developed methodologies to prevent ex vivo release of TGF-β1 and to quantify active TGF-β1. We then used these techniques to measure TGF-β1 in healthy controls and patients with heart failure (HF) before and after insertion of left ventricular assist devices (LVAD). Total plasma TGF-β1 was 1.0 ± 0.60 ng/mL in controls and 3.76 ± 1.55 ng/mL in subjects with HF (P < 0.001), rising to 5.2 ± 2.3 ng/mL following LVAD placement (P = 0.006). These results were paralleled by the active TGF-β1 values; controls had 3-16 pg/mL active TGF-β1, whereas levels were 2.7-fold higher in patients with HF before, and 4.2-fold higher after, LVAD implantation. Total TGF-β1 correlated with levels of the platelet-derived protein thrombospondin-1 (r = 0.87; P < 0.001), suggesting that plasma TGF-β1 may serve as a surrogate indicator of in vivo platelet activation. von Willebrand factor high molecular weight multimers correlated inversely with TGF-β1 levels (r = -0.63; P = 0.023), suggesting a role for shear forces in loss of these multimers and platelet activation. In conclusion, accurate assessment of circulating TGF-β1 may provide a valuable biomarker for in vivo platelet activation and thrombotic disorders.
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Kong FMS, Zhao L, Wang L, Chen Y, Hu J, Fu X, Bai C, Wang L, Lawrence TS, Anscher MS, Dicker A, Okunieff P. Ensuring sample quality for blood biomarker studies in clinical trials: a multicenter international study for plasma and serum sample preparation. Transl Lung Cancer Res 2017; 6:625-634. [PMID: 29218266 DOI: 10.21037/tlcr.2017.09.13] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Background Sample quality is critical for biomarker detection in oncology, and platelet degradation and contamination in plasma have a remarkable impact on the ability to accurately quantify many blood-based biomarkers. Platelet factor 4 (PF4) can be used as an indicator to monitor sample quality. This multicenter study aimed to determine the impact of critical components of the blood sample handling process on platelet degradation/contamination and to establish an optimal method for collecting platelet-poor plasma samples. Methods At each of six participating centers, blood samples were drawn from 12-13 healthy volunteers. Serum and plasma samples were prepared from whole blood samples using nine different methods that have been commonly used in ongoing multicenter trials. PF4 levels in the prepared samples were measured by enzyme-linked immunosorbent assay (ELISA). Paired t-tests were used for statistical analysis. Results Blood samples were collected from 74 subjects enrolled in six centers. PF4 levels were significantly higher in serum samples than in plasma samples (P<0.001), in plasma samples from blood that sat at room temperature for 5 minutes (P=0.021), in plasma samples prepared at an insufficient centrifugal force (P<0.001), and in plasma samples prepared from blood that sat for longer than 4 hours on ice (P=0.001). For each method, the PF4 levels did not differ significantly among the centers or between Chinese and American subjects. The methods that resulted in normal levels of PF4 involved keeping blood samples on ice for 30 minutes to <4 hours and centrifugation at 2,500-3,000 ×g for 30 min. Conclusions This multicenter study evaluated multiple blood sample handling conditions for minimizing platelet degradation during plasma serum preparation and determined an optimal method for preparing platelet-poor plasma. The findings of this study can be applied in future blood biomarker studies.
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Affiliation(s)
- Feng-Ming Spring Kong
- Department of Radiation Oncology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Lujun Zhao
- Department of Radiation Oncology, Tianjin Medical University Cancer Hospital, Tianjin 300060, China
| | - Luhua Wang
- Department of Radiation Oncology, Cancer Institute and Hospital, Chinese Academy of Science, Peking Union Medical College, Beijing 100021, China
| | - Yuhchyau Chen
- Deapartment of Radiation Oncology, University of Rochester, Rochester, NY, USA
| | - Jie Hu
- Department of Pulmonary Medicine, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Xiaolong Fu
- Department of Radiation Oncology, Chest Hospital, Jiaotong University, Shanghai 200030, China
| | - Chunxue Bai
- Department of Pulmonary Medicine, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Li Wang
- Department of Radiation Oncology, UT MD Anderson Cancer Center, Houston, TX, USA
| | - Theodore S Lawrence
- Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan, USA
| | - Mitchell S Anscher
- Department of Radiation Oncology, UT MD Anderson Cancer Center, Houston, TX, USA
| | - Adam Dicker
- Department of Radiation Oncology, Thomas Jefferson Hospital, Philadelphia, PA, USA
| | - Paul Okunieff
- Department of Radiation Oncology, University of Florida, Gainesville, FL, USA
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Sánchez-Tirado E, Arellano LM, González-Cortés A, Yáñez-Sedeño P, Langa F, Pingarrón JM. Viologen-functionalized single-walled carbon nanotubes as carrier nanotags for electrochemical immunosensing. Application to TGF-β1 cytokine. Biosens Bioelectron 2017; 98:240-247. [DOI: 10.1016/j.bios.2017.06.063] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Revised: 06/19/2017] [Accepted: 06/30/2017] [Indexed: 11/25/2022]
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Chronic Venous Insufficiency: Transforming Growth Factor-β Isoforms and Soluble Endoglin Concentration in Different States of Wound Healing. Int J Mol Sci 2017; 18:ijms18102206. [PMID: 29065449 PMCID: PMC5666886 DOI: 10.3390/ijms18102206] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Revised: 10/18/2017] [Accepted: 10/19/2017] [Indexed: 01/01/2023] Open
Abstract
Venous leg ulcer (VLU) is a huge healthcare problem with poorly understood pathophysiology. Transforming growth factor-β (TGF-β) and endoglin (Eng), are inflammatory and wound healing mediators. Eng, co-receptor for TGF-β type-II receptors, may be cleaved forming soluble Eng (sEng), antagonizing TGF-β signaling, a crucial process in vascular pathologies. We evaluated the accumulation in wound fluid (WF) of TGF-β isoforms and sEng in healing stages, showing the effects of sulodexide treatments, a glycosaminoglycan with clinical efficacy in VLU healing. Patients with inflammatory (Infl) and granulating (Gran) VLU were recruited. WFs and THP-1 monocytes exposed to Infl and Gran WF (treated/untreated with sulodexide) were analyzed for TGF-β isoforms and sEng by multiplex immunoassay. In both Infl and Gran WF, TGF-β1 and β2 were similar; TGF-β3 was significantly increased in Infl compared to Gran WFs (p = 0.033). sEng was significantly elevated in Gran compared to Infl WFs (p = 0.002). In THP-1 monocytes there was a significant increase in sEng after co-treatment of WF and sulodexide. The increase in TGF-β3 found in Infl WF highlights its negative effect on wound healing, while the increased levels of sEng in Gran WF affects the leukocyte adhesion/transmigration through the endothelium, reducing the inflammatory response and favoring the wound healing. Glycosaminoglycan sulodexide potentiates the effects of sEng release from monocyte, representing an important therapeutic option for wound healing.
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Pochini ADC, Antonioli E, Bucci DZ, Sardinha LR, Andreoli CV, Ferretti M, Ejnisman B, Goldberg AC, Cohen M. Analysis of cytokine profile and growth factors in platelet-rich plasma obtained by open systems and commercial columns. EINSTEIN-SAO PAULO 2017; 14:391-397. [PMID: 27759829 PMCID: PMC5234752 DOI: 10.1590/s1679-45082016ao3548] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2015] [Accepted: 06/30/2016] [Indexed: 12/13/2022] Open
Abstract
Objective: To evaluate growth factors and cytokines in samples of platelet-rich plasma obtained by three different centrifugation methods. Methods: Peripheral blood of six individuals with no hematological diseases, aged 18 to 68 years, was drawn to obtain platelet-rich plasma, using the open method and commercial columns by Medtronic and Biomet. The products obtained with the different types of centrifugation were submitted to laboratory analysis, including pro-inflammatory cytokines and chemokines by flow cytometry assays, the concentration of fibroblast growth factors-2 (FGF-2) and transforming growth factor-beta1 (TGF-β1). Results: The diverse separation methods generated systematically different profiles regarding number of platelets and leukocytes. The Medtronic system yielded a product with the highest concentration of platelets, and the open method, with the lowest concentration of platelets. The results of cytokine analysis showed that the different types of centrifugation yielded products with high concentrations of interleukin 8, interleukin 1β. The open system resulted in a product with high levels of interleukin 6. Other cytokines and chemokines measured were similar between systems. The product obtained with the open method showed higher levels of TGF-β1 in relation to other systems and low FGF-2 levels. Conclusion: The formed elements, growth factors and cytokines in samples of platelet-rich plasma varied according to the centrifugation technique used. Objetivo: Avaliar fatores de crescimento e citocinas em amostras de plasma rico em plaquetas obtidas por três diferentes métodos de centrifugação. Métodos: Foi coletado sangue periférico de seis indivíduos, sem doença hematológica, com idades entre 18 e 68 anos, para obtenção de plasma rico em plaquetas, utilizando o método aberto e sistemas comerciais das empresas Medtronic e Biomet. Os produtos obtidos com os diferentes tipos de centrifugação foram submetidos às análises laboratoriais, incluindo citocinas próinflamatórias e quimiocinas, por meio de ensaios de citometria de fluxo, concentração do fator de crescimento fibroblástico-2 (FGF-2) e fator de crescimento transformador-beta1 (TGF-β1). Resultados: As diferentes centrifugações geraram perfis sistematicamente diferentes referentes ao número de plaquetas e de leucócitos. O sistema da Medtronic originou produto com a maior concentração de plaquetas, e o método aberto com a menor concentração de plaquetas. Os resultados da análise de citocinas demonstraram que os diferentes tipos de centrifugação originaram produtos com elevadas concentrações de interleucina 8 e interleucina 1β. O sistema aberto resultou em produto com elevados níveis de interleucina 6. As demais citocinas e quimiocinas mensuradas foram similares entre os sistemas. O produto obtido com o método aberto apresentou níveis superiores de TGF-β1 em relação aos demais sistemas e reduzidos níveis de FGF-2. Conclusão: Os elementos figurados, fatores de crescimento e citocinas, em amostras de plasma rico em plaquetas, variaram conforme a técnica de centrifugação utilizada.
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Affiliation(s)
| | | | | | | | | | - Mario Ferretti
- Hospital Israelita Albert Einstein, São Paulo, SP, Brazil
| | - Benno Ejnisman
- Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | | | - Moisés Cohen
- Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brazil
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Ntelis K, Solomou EE, Sakkas L, Liossis SN, Daoussis D. The role of platelets in autoimmunity, vasculopathy, and fibrosis: Implications for systemic sclerosis. Semin Arthritis Rheum 2017; 47:409-417. [PMID: 28602360 DOI: 10.1016/j.semarthrit.2017.05.004] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2017] [Revised: 04/12/2017] [Accepted: 05/16/2017] [Indexed: 12/24/2022]
Abstract
INTRODUCTION Systemic sclerosis (SSc) is an autoimmune disease characterized by vasculopathy, autoimmunity, and widespread dermal and visceral fibrosis. This article summarizes the current knowledge about the potential contribution of platelets in the disease process and the rationale of targeting platelets as an adjunct treatment for SSc. METHODS We performed an electronic search (Medline) using the keywords platelets, systemic sclerosis, autoimmunity, fibrosis, Raynaud, and pulmonary arterial hypertension. RESULTS The link that connects vasculopathy, autoimmunity, and fibrosis in SSc remains obscure. Experimental data suggest that platelets are not solely cell fragments regulating hemostasis but they have a pleiotropic role in several biologic processes including immune regulation, vasculopathy, fibrosis, and all key features of SSc. Platelets interplay with the impaired endothelium, can interact with immune cells, and they are storages of bioactive molecules involved in tissue injury and remodeling. The potential role of platelets in the pathogenesis of SSc is further supported by experimental data in animal models of SSc. Platelet-derived serotonin represents a novel target in SSc and serotonin blockade is currently being tested in clinical trials. CONCLUSION Platelets may be actively involved in the pathogenesis of SSc by activating immune responses and facilitating the fibrotic process. However, definite conclusions cannot be drawn until more data from both basic and clinical research are available.
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Affiliation(s)
- Konstantinos Ntelis
- Division of Rheumatology, Department of Internal Medicine, University of Patras Medical School, Patras University Hospital, 26504 Rion, Patras, Greece
| | - Elena E Solomou
- Department of Internal Medicine, University of Patras Medical School, Patras University Hospital, Patras, Greece
| | - Lazaros Sakkas
- Department of Rheumatology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece
| | - Stamatis-Nick Liossis
- Division of Rheumatology, Department of Internal Medicine, University of Patras Medical School, Patras University Hospital, 26504 Rion, Patras, Greece
| | - Dimitrios Daoussis
- Division of Rheumatology, Department of Internal Medicine, University of Patras Medical School, Patras University Hospital, 26504 Rion, Patras, Greece.
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Lidbury BA, Kita B, Lewis DP, Hayward S, Ludlow H, Hedger MP, de Kretser DM. Activin B is a novel biomarker for chronic fatigue syndrome/myalgic encephalomyelitis (CFS/ME) diagnosis: a cross sectional study. J Transl Med 2017; 15:60. [PMID: 28302133 PMCID: PMC5353946 DOI: 10.1186/s12967-017-1161-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Accepted: 03/10/2017] [Indexed: 12/15/2022] Open
Abstract
Background Investigations of activin family proteins as serum biomarkers for chronic fatigue syndrome/myalgic encephalomyelitis (CFS/ME). CFS/ME is a disease with complex, wide-ranging symptoms, featuring persistent fatigue of 6 months or longer, particularly post exertion. No definitive biomarkers are available. Methods A cross-sectional, observational study of CFS/ME patients fulfilling the 2003 Canadian Consensus Criteria, in parallel with healthy non-fatigued controls, was conducted. Comparisons with a previously defined activin reference population were also performed. For the total study cohort the age range was 18–65 years with a female: male participant ratio of greater than 3:1. All participants were assessed via a primary care community clinic. Blood samples were collected for pathology testing after physical examination and orthostatic intolerance assessment. Cytokines, activin A, activin B and follistatin were also measured in sera from these samples. All data were compared between the CFS/ME and control cohorts, with the activins and follistatin also compared with previously defined reference intervals. Results Serum activin B levels for CFS/ME participants were significantly elevated when compared to the study controls, as well as the established reference interval. Serum activin A and follistatin were within their normal ranges. All routine and special pathology markers were within the normal laboratory reference intervals for the total study cohort, with no significant differences detected between CFS/ME and control groups. Also, no significant differences were detected for IL-2, IL-4, IL-6, IL-10, IL-17A, TNF or IFN-gamma. Conclusion Elevated activin B levels together with normal activin A levels identified patients with the diagnostic symptoms of CFS/ME, thus providing a novel serum based test. The activins have multiple physiological roles and capture the diverse array of symptoms experienced by CFS/ME patients.
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Affiliation(s)
- Brett A Lidbury
- Pattern Recognition and Pathology, Department of Genome Sciences, The John Curtin School of Medical Research, The Australian National University, Canberra, ACT, 2601, Australia. .,The National Centre for Epidemiology and Public Health, The Research School of Population Health, ANU, Canberra, ACT, 2601, Australia.
| | - Badia Kita
- Paranta Biosciences Limited, Caulfield North, VIC, 3161, Australia
| | - Donald P Lewis
- CFS Discovery, Donvale Medical Specialist Centre, Donvale, VIC, 3111, Australia
| | - Susan Hayward
- The Hudson Medical Research Institute, Monash University, Clayton, VIC, 3168, Australia
| | - Helen Ludlow
- Centre for Proteins and Peptides, School of Life Sciences, Oxford Brookes University, Headington, Oxford, OX3 0BP, UK
| | - Mark P Hedger
- The Hudson Medical Research Institute, Monash University, Clayton, VIC, 3168, Australia
| | - David M de Kretser
- The Hudson Medical Research Institute, Monash University, Clayton, VIC, 3168, Australia.,Department of Anatomy and Developmental Biology, Monash University, Clayton, VIC, 3168, Australia
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Luo S, Wang Y, An Q, Chen H, Zhao J, Zhang J, Meng W, Du L. Platelets protect lung from injury induced by systemic inflammatory response. Sci Rep 2017; 7:42080. [PMID: 28155889 PMCID: PMC5290476 DOI: 10.1038/srep42080] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Accepted: 01/04/2017] [Indexed: 02/05/2023] Open
Abstract
Systemic inflammatory responses can severely injure lungs, prompting efforts to explore how to attenuate such injury. Here we explored whether platelets can help attenuate lung injury in mice resulting from extracorporeal circulation (ECC)-induced systemic inflammatory responses. Mice were subjected to ECC for 30 min, then treated with phosphate-buffered saline, platelets, the GPIIb/IIIa inhibitor Tirofiban, or the combination of platelets and Tirofiban. Blood and lung tissues were harvested 60 min later, and lung injury and inflammatory status were assessed. As expected, ECC caused systemic inflammation and pulmonary dysfunction, and platelet transfusion resulted in significantly milder lung injury and higher lung function. It also led to greater numbers of circulating platelet-leukocyte aggregates and greater platelet accumulation in the lung. Platelet transfusion was associated with higher production of transforming growth factor-β and as well as lower levels of tumour necrosis factor-α and neutrophil elastase in plasma and lung. None of these platelet effects was observed in the presence of Tirofiban. Our results suggest that, at least under certain conditions, platelets can protect lung from injury induced by systemic inflammatory responses.
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Affiliation(s)
- Shuhua Luo
- Department of Cardiovascular Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041 China
| | - Yabo Wang
- Department of Cardiovascular Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041 China
| | - Qi An
- Department of Cardiovascular Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041 China
| | - Hao Chen
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041 China
| | - Junfei Zhao
- Department of Cardiovascular Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041 China
| | - Jie Zhang
- Department of Anesthesiology and Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041 China
| | - Wentong Meng
- Laboratory of Stem Cell Biology, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041 China
| | - Lei Du
- Department of Anesthesiology and Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041 China
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Dadak M, Jacobs R, Skuljec J, Jirmo AC, Yildiz Ö, Donnerstag F, Baerlecken NT, Schmidt RE, Lanfermann H, Skripuletz T, Schwenkenbecher P, Kleinschnitz C, Tumani H, Stangel M, Pul R. Gain-of-function STAT1 mutations are associated with intracranial aneurysms. Clin Immunol 2017; 178:79-85. [PMID: 28161409 DOI: 10.1016/j.clim.2017.01.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Revised: 12/04/2016] [Accepted: 01/30/2017] [Indexed: 11/17/2022]
Abstract
Chronic mucocutaneous candidiasis, characterized by persistent or recurrent fungal infections, represents the clinical hallmark in gain-of-function (GOF) signal transducer and activator of transcription 1 (STAT1) mutation carriers. Several cases of intracranial aneurysms have been reported in patients with GOF STAT1 mutation but the paucity of reported cases likely suggested this association still as serendipity. In order to endorse this association, we link the development of intracranial aneurysms with STAT1 GOF mutation by presenting the two different cases of a patient and her mother, and demonstrate upregulated phosphorylated STAT4 and IL-12 receptor β1 upon stimulation in patient's blood cells. We also detected increased transforming growth factor (TGF)-β type 2 receptor expression, particularly in CD14+ cells, and a slightly higher phosphorylation rate of SMAD3. In addition, the mother of the patient developed disseminated bacille Calmette-Guérin disease after vaccination, speculating that GOF STAT1 mutations may confer a predisposition to weakly virulent mycobacteria.
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Affiliation(s)
- Mete Dadak
- Department of Neuroradiology, Hannover Medical School, Hannover, Germany
| | - Roland Jacobs
- Department of Clinical Immunology and Rheumatology, Hannover Medical School, Hannover, Germany
| | - Jelena Skuljec
- Department of Pediatric Pneumology, Allergology and Neonatology, Hannover Medical School, Germany
| | - Adan Chari Jirmo
- Department of Pediatric Pneumology, Allergology and Neonatology, Hannover Medical School, Germany
| | - Özlem Yildiz
- Department of Neurology, Hannover Medical School, Hannover, Germany
| | - Frank Donnerstag
- Department of Neuroradiology, Hannover Medical School, Hannover, Germany
| | | | - Reinhold Ernst Schmidt
- Department of Clinical Immunology and Rheumatology, Hannover Medical School, Hannover, Germany
| | | | | | | | | | | | - Martin Stangel
- Department of Neurology, Hannover Medical School, Hannover, Germany
| | - Refik Pul
- Department of Neurology, University Clinic Essen, Essen, Germany.
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Hauschild G, Geburek F, Gosheger G, Eveslage M, Serrano D, Streitbürger A, Johannlükens S, Menzel D, Mischke R. Short term storage stability at room temperature of two different platelet-rich plasma preparations from equine donors and potential impact on growth factor concentrations. BMC Vet Res 2017; 13:7. [PMID: 28056978 PMCID: PMC5216599 DOI: 10.1186/s12917-016-0920-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2016] [Accepted: 12/09/2016] [Indexed: 11/14/2022] Open
Abstract
Background The increasing interest in platelet-rich plasma (PRP) based therapies is as yet accompanied by inconsistent information regarding nearly all aspects of handling and application. Among these storage stability of processed platelet-rich products may be the basis for a more flexible application mode. The objective of this study was (1) to estimate the storage stability of growth factors platelet derived growth factor BB (PDGF-BB) and transforming growth factor ß1 (TGF-ß1) in both, a single-step softspin centrifugation-based pure-PRP (P-PRP, ACP®), and a gravity filtration system-based leukocyte-rich-PRP (L-PRP, E-PET), over a six hours time span after preparation at room temperature and (2) to identify possible factors influencing these growth factor concentrations in an equine model. Results Growth factor concentrations remained stable over the entire investigation period in L-PRP as well as P-PRP preparations revealing a mean of 3569 pg/ml PDGF-BB for E-PET and means of 1276 pg/ml PDGF-BB and 5086 pg/ml TGF-ß1 for ACP®. Pearson correlations yielded no significant impact of whole blood platelet (PLT), white blood cell (WBC) and red blood cell (RBC) counts on resulting cytokine values. In case of ACP® no significant dependencies between PLT, WBC and RBC counts of the processed platelet-rich product and resulting cytokine content occurred with exception of TGF-ß1 concentrations showing a strong correlation with the WBC content. PDGF-BB content of E-PET preparations showed a strong positive correlation with PLT and a strong negative with WBC of these preparations but not with RBC. Conclusions L-PRP ad modum E-PET and P-PRP ad modum ACP® are applicable over at least a six hours time span at room temperature without loss of growth factor content. Based on the results of this study factors influencing the resulting growth factor concentrations still remain questionable. Additional studies implicating a further standardization of preparation protocols are necessary to identify consistent impact on cytokine content after PRP processing. Electronic supplementary material The online version of this article (doi:10.1186/s12917-016-0920-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Gregor Hauschild
- Department of Orthopedics and Tumororthopedics, University Hospital of Muenster, Albert-Schweitzer-Campus 1, 48149, Muenster, Germany.
| | - Florian Geburek
- Clinic for Horses, University of Veterinary Medicine Hannover, Foundation, Bünteweg 9, 30559, Hanover, Germany
| | - Georg Gosheger
- Department of Orthopedics and Tumororthopedics, University Hospital of Muenster, Albert-Schweitzer-Campus 1, 48149, Muenster, Germany
| | - Maria Eveslage
- Institute of Biostatistics and Clinical Research, University of Muenster (WWU), Schmeddingstraße 56, 48149, Münster, Germany
| | - Daniela Serrano
- Department of Orthopedics and Tumororthopedics, University Hospital of Muenster, Albert-Schweitzer-Campus 1, 48149, Muenster, Germany
| | - Arne Streitbürger
- Department of Orthopedics and Tumororthopedics, University Hospital of Muenster, Albert-Schweitzer-Campus 1, 48149, Muenster, Germany
| | - Sara Johannlükens
- Clinic for Horses, University of Veterinary Medicine Hannover, Foundation, Bünteweg 9, 30559, Hanover, Germany
| | - Dirk Menzel
- Small Animal Clinic, University of Veterinary Medicine Hannover, Foundation, Bünteweg 9, 30559, Hannover, Germany
| | - Reinhard Mischke
- Small Animal Clinic, University of Veterinary Medicine Hannover, Foundation, Bünteweg 9, 30559, Hannover, Germany
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TGF-β1 along with other platelet contents augments Treg cells to suppress anti-FVIII immune responses in hemophilia A mice. Blood Adv 2016; 1:139-151. [PMID: 28164173 DOI: 10.1182/bloodadvances.2016001453] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Platelets are a rich source of many cytokines and chemokines including transforming growth factor β 1 (TGF-β1). TGF-β1 is required to convert conventional CD4+ T (Tconv) cells into induced regulatory T (iTreg) cells that express the transcription factor Foxp3. Whether platelet contents will affect Treg cell properties has not been explored. In this study, we show that unfractionated platelet lysates (pltLys) containing TGF-β1 efficiently induced Foxp3 expression in Tconv cells. The common Treg cell surface phenotype and in vitro suppressive activity of unfractionated pltLys-iTreg cells were similar to those of iTreg cells generated using purified TGF-β1 (purTGFβ-iTreg) cells. However, there were substantial differences in gene expression between pltLys-iTreg and purTGFβ-iTreg cells, especially in granzyme B, interferon γ, and interleukin-2 (a 30.99-, 29.18-, and 17.94-fold difference, respectively) as determined by gene microarray analysis. In line with these gene signatures, we found that pltLys-iTreg cells improved cell recovery after transfer and immune suppressive function compared with purTGFβ-iTreg cells in factor VIII (FVIII)-deficient (F8null, hemophilia A model) mice after recombinant human FVIII (rhF8) infusion. Acute antibody-mediated platelet destruction in F8null mice followed by rhF8 infusion increased the number of Treg cells and suppressed the antibody response to rhF8. Consistent with these data, ex vivo proliferation of F8-specific Treg cells from platelet-depleted animals increased when restimulated with rhF8. Together, our data suggest that pltLys-iTreg cells may have advantages in emerging clinical applications and that platelet contents impact the properties of iTreg cells induced by TGF-β1.
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Geburek F, Gaus M, van Schie HTM, Rohn K, Stadler PM. Effect of intralesional platelet-rich plasma (PRP) treatment on clinical and ultrasonographic parameters in equine naturally occurring superficial digital flexor tendinopathies - a randomized prospective controlled clinical trial. BMC Vet Res 2016; 12:191. [PMID: 27604193 PMCID: PMC5015224 DOI: 10.1186/s12917-016-0826-1] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2016] [Accepted: 09/01/2016] [Indexed: 12/13/2022] Open
Abstract
Background Regenerative and anti-inflammatory effects on tendinopathies have been attributed to blood-derived biologicals. To date the evidence for the efficacy of autologous platelet-rich plasma (PRP) treatment of naturally occurring equine tendinopathies is limited. The purpose of this placebo-controlled clinical trial was to describe the effect of a single treatment of equine superficial digital flexor tendon (SDFT) disease with PRP on clinical and ultrasonographic parameters. Twenty horses with naturally occurring tendinopathies of forelimb SDFTs were randomly assigned to the PRP-treated group (n = 10) or control group (n = 10) after clinical and ultrasonographic examination. The SDFTs received an intralesional treatment with autologous PRP or were injected with saline, respectively (day 0). All horses participated in a standardized exercise programme and were re-examined clinically, with B-mode ultrasonography (5 times at regular intervals) and ultrasound tissue characterization (week 12 and 24 after treatment) until week 24. Long-term performance was estimated via telephone inquiry. Results Compared to day 0, lameness decreased significantly by week 8 after treatment with PRP and by week 12 in the control group. Ultrasonographically there was no difference in the summarized cross sectional area between the groups at any time point. Ultrasound tissue characterization showed that echo types representing disorganized matrix decreased significantly throughout the observation period in the PRP-treated group. Echo type II, representing discontinuous fascicles, not yet aligned into lines of stress was significantly higher 24 weeks after PRP treatment. Eighty percent of the PRP treated horses reached their previous or a higher level of performance after 12 months compared to 50 % in the CG. After 24 months these proportions were 60 % and 50 %, respectively. Conclusions A single intralesional treatment with PRP up to 8 weeks after onset of clinical signs of tendinopathy contributes to an earlier reduction of lameness compared to saline treatment and to an advanced organization of repair tissue as the fibrillar matrix is getting organized into fascicles while remodelling continues. Long term, PRP treatment has the potential to increase the number of horses reaching their previous level of performance. Earlier treatment of tendinopathy with PRP should be considered to enhance these effects.
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Affiliation(s)
- Florian Geburek
- Clinic for Horses, University of Veterinary Medicine Hannover, Foundation, Bünteweg 9, 30559, Hannover, Germany.
| | - Moritz Gaus
- Clinic for Horses, University of Veterinary Medicine Hannover, Foundation, Bünteweg 9, 30559, Hannover, Germany
| | - Hans T M van Schie
- Department of Equine Sciences, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 112, 3584 CM, Utrecht, Netherlands
| | - Karl Rohn
- Institute for Biometry, Epidemiology and Information Processing, University of Veterinary Medicine Hannover, Foundation, Bünteweg 2, 30559, Hannover, Germany
| | - Peter M Stadler
- Clinic for Horses, University of Veterinary Medicine Hannover, Foundation, Bünteweg 9, 30559, Hannover, Germany
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Signalling by Transforming Growth Factor Beta Isoforms in Wound Healing and Tissue Regeneration. J Dev Biol 2016; 4:jdb4020021. [PMID: 29615587 PMCID: PMC5831781 DOI: 10.3390/jdb4020021] [Citation(s) in RCA: 87] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Revised: 06/14/2016] [Accepted: 06/17/2016] [Indexed: 12/14/2022] Open
Abstract
Transforming growth factor beta (TGFβ) signalling is essential for wound healing, including both non-specific scar formation and tissue-specific regeneration. Specific TGFβ isoforms and downstream mediators of canonical and non-canonical signalling play different roles in each of these processes. Here we review the role of TGFβ signalling during tissue repair, with a particular focus on the prototypic isoforms TGFβ1, TGFβ2, and TGFβ3. We begin by introducing TGFβ signalling and then discuss the role of these growth factors and their key downstream signalling mediators in determining the balance between scar formation and tissue regeneration. Next we discuss examples of the pleiotropic roles of TGFβ ligands during cutaneous wound healing and blastema-mediated regeneration, and how inhibition of the canonical signalling pathway (using small molecule inhibitors) blocks regeneration. Finally, we review various TGFβ-targeting therapeutic strategies that hold promise for enhancing tissue repair.
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48
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Park HC, Kim SG, Oh JS, You JS, Kim JS, Lim SC, Jeong MA, Kim JS, Jung C, Kwon YS, Ji H. Early Bone Formation at a Femur Defect Using CGF and PRF Grafts in Adult Dogs: A Comparative Study. IMPLANT DENT 2016; 25:387-93. [PMID: 27123893 DOI: 10.1097/id.0000000000000423] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
PURPOSE The purpose of this study was to compare the predictability of new bone formation using an autologous concentrated growth factor (CGF) graft alone and platelet graft alone. MATERIALS AND METHODS Four bony defects of 8 mm were formed, and 3.7- × 10-mm implants were placed in the right femur. The platelet-rich fibrin (PRF), CGF, and synthetic bone were grafted to the bone defect area. Enzyme linked immunosorbent assay quantitative analysis and microscopic analysis of the fibrinogen structure were performed. RESULTS At 4 weeks, the comparisons of each experimental group showed a significant difference between the CGF group and the synthetic bone graft group. When comparing the CGF and allograft material groups, the allograft group showed significantly more new bone formation. In the case of vascular endothelial growth factor, CGF had 1.5 times more than PRF. CGF showed a fibrinogen structure with a constant diameter. CONCLUSION When applied to a clinical case, CGF is predicted to show better results than PRF.
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Affiliation(s)
- Hyun-Chun Park
- *Resident, Department of Oral and Maxillofacial Surgery, School of Dentistry, Chosun University, Gwangju, Republic of Korea. †Professor, Department of Oral and Maxillofacial Surgery, School of Dentistry, Chosun University, Gwangju, Republic of Korea. ‡Associate Professor, Department of Oral and Maxillofacial Surgery, School of Dentistry, Chosun University, Gwangju, Republic of Korea. §Assistant Professor, Department of Oral and Maxillofacial Surgery, School of Dentistry, Chosun University, Gwangju, Republic of Korea. ¶Assistant Professor, Department of Pre-Dentistry, School of Dentistry, Chosun University, Gwangju, Republic of Korea. ‖Professor, Department of Pathology, School of Medicine, Chosun University, Gwangju, Republic of Korea. #Professor, Department of Dental Hygiene, Kangwon National University, Samcheok, Republic of Korea. ††Clinical doctor, Misomore Dental Clinic, Jeonju, Republic of Korea
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Sánchez-Tirado E, Martínez-García G, González-Cortés A, Yáñez-Sedeño P, Pingarrón JM. Electrochemical immunosensor for sensitive determination of transforming growth factor (TGF) - β1 in urine. Biosens Bioelectron 2016; 88:9-14. [PMID: 27297187 DOI: 10.1016/j.bios.2016.05.093] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Revised: 05/11/2016] [Accepted: 05/30/2016] [Indexed: 01/15/2023]
Abstract
The first amperometric immunosensor for the quantification of TGF-β1, a cytokine proposed as a biomarker for patients having or at risk for renal disease, is described in this work. The immunosensor design involves disposable devices using carboxylic acid-functionalized magnetic microparticles supported onto screen-printed carbon electrodes and covalent immobilization of the specific antibody for TGF-β1 using Mix&Go polymer. A sandwich-type immunoassay was performed using biotin-anti-TGF and conjugation with peroxidase-labeled streptavidin (poly-HRP-Strept) polymer. Amperometric measurements were carried out at -0.20V by adding hydrogen peroxide solution onto the electrode surface in the presence of hydroquinone as the redox mediator. The calibration plot allowed a range of linearity extending between 15 and 3000pg/mL TGF-β1 which is adequate for the determination of the cytokine in plasma and urine. The limit of detection, 10pg/mL, is notably improved with respect to those obtained with ELISA kits. The usefulness of the immunosensor for the determination of low TGF-β1 concentrations in real samples was evaluated by analyzing spiked urine at different pg/mL concentration levels.
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Affiliation(s)
- E Sánchez-Tirado
- Department of Analytical Chemistry, Faculty of Chemistry, University Complutense of Madrid, 28040 Madrid, Spain
| | - G Martínez-García
- Department of Analytical Chemistry, Faculty of Chemistry, University Complutense of Madrid, 28040 Madrid, Spain
| | - A González-Cortés
- Department of Analytical Chemistry, Faculty of Chemistry, University Complutense of Madrid, 28040 Madrid, Spain
| | - P Yáñez-Sedeño
- Department of Analytical Chemistry, Faculty of Chemistry, University Complutense of Madrid, 28040 Madrid, Spain.
| | - J M Pingarrón
- Department of Analytical Chemistry, Faculty of Chemistry, University Complutense of Madrid, 28040 Madrid, Spain
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Bhatia A, O'Brien K, Chen M, Woodley DT, Li W. Keratinocyte-Secreted Heat Shock Protein-90alpha: Leading Wound Reepithelialization and Closure. Adv Wound Care (New Rochelle) 2016; 5:176-184. [PMID: 27076995 DOI: 10.1089/wound.2014.0620] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Significance: Delayed and nonhealing wounds pose a health, economic, and social problem worldwide. For decades, the conventional wisdom pointed to growth factors as the driving force of wound healing and granted them a center stage for therapeutic development. To date, few have obtained US FDA approvals or shown clinical effectiveness and safety. Critical Issue: Wound closure is the initial and most critical step during wound healing. Closing chronic wounds to shut down continued infection is the primary and likely the only achievable goal at the clinic in the foreseeable future. The critical question here is to identify the factor(s) in wounded tissues that drives the initial wound closure. Recent Advances: We made an unexpected discovery of the secreted form of heat shock protein-90alpha (Hsp90α) for promoting skin cell motility, reepithelialization, and wound closure. Secreted Hsp90α possesses unique properties to remain functional under the hostile wound environment that compromises conventional growth factors' effectiveness. Through the common lipoprotein receptor-related protein-1 cell surface receptor and activation of the Akt signaling pathway, topical application of human recombinant Hsp90α protein greatly accelerates excision, burn, and diabetic skin wound closure in rodent and porcine models. Future Directions: In almost all cells, the 2-3% of their total proteins (∼7,000 per cell) are Hsp90 (α and β), a long unraveled puzzle. Our new finding of Hsp90 secretion in wounded tissues suggests that the stockpile of Hsp90α by all cells is to rapidly supply the need for extracellular Hsp90α to repair damaged tissues. We propose that keratinocytes at the wound edge secrete Hsp90α that leads the reepithelialization process to close the wound.
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Affiliation(s)
- Ayesha Bhatia
- Department of Dermatology and USC-Norris Comprehensive Cancer Center, University of Southern California Keck School of Medicine, Los Angeles, California
| | - Kathryn O'Brien
- Department of Dermatology and USC-Norris Comprehensive Cancer Center, University of Southern California Keck School of Medicine, Los Angeles, California
| | - Mei Chen
- Department of Dermatology and USC-Norris Comprehensive Cancer Center, University of Southern California Keck School of Medicine, Los Angeles, California
| | - David T. Woodley
- Department of Dermatology and USC-Norris Comprehensive Cancer Center, University of Southern California Keck School of Medicine, Los Angeles, California
| | - Wei Li
- Department of Dermatology and USC-Norris Comprehensive Cancer Center, University of Southern California Keck School of Medicine, Los Angeles, California
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