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Boreddy SR, Nair R, Pandey PK, Kuriakose A, Marigowda SB, Dey C, Banerjee A, Kulkarni H, Sagar M, Krishn SR, Rao S, AR M, Tiwari V, Alke B, MV PK, Shri M, Dhamne C, Patel S, Sharma P, Periyasamy S, Bhatnagar J, Kuriakose MA, Reddy RB, Suresh A, Sreenivas S, Govindappa N, Moole PR, Bughani U, Tan SL, Nair P. BCA101 Is a Tumor-Targeted Bifunctional Fusion Antibody That Simultaneously Inhibits EGFR and TGFβ Signaling to Durably Suppress Tumor Growth. Cancer Res 2023; 83:1883-1904. [PMID: 37074042 PMCID: PMC10236157 DOI: 10.1158/0008-5472.can-21-4425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 10/12/2022] [Accepted: 03/29/2023] [Indexed: 04/20/2023]
Abstract
The EGFR and TGFβ signaling pathways are important mediators of tumorigenesis, and cross-talk between them contributes to cancer progression and drug resistance. Therapies capable of simultaneously targeting EGFR and TGFβ could help improve patient outcomes across various cancer types. Here, we developed BCA101, an anti-EGFR IgG1 mAb linked to an extracellular domain of human TGFβRII. The TGFβ "trap" fused to the light chain in BCA101 did not sterically interfere with its ability to bind EGFR, inhibit cell proliferation, or mediate antibody-dependent cellular cytotoxicity. Functional neutralization of TGFβ by BCA101 was demonstrated by several in vitro assays. BCA101 increased production of proinflammatory cytokines and key markers associated with T-cell and natural killer-cell activation, while suppressing VEGF secretion. In addition, BCA101 inhibited differentiation of naïve CD4+ T cells to inducible regulatory T cells (iTreg) more strongly than the anti-EGFR antibody cetuximab. BCA101 localized to tumor tissues in xenograft mouse models with comparable kinetics to cetuximab, both having better tumor tissue retention over TGFβ "trap." TGFβ in tumors was neutralized by approximately 90% in animals dosed with 10 mg/kg of BCA101 compared with 54% in animals dosed with equimolar TGFβRII-Fc. In patient-derived xenograft mouse models of head and neck squamous cell carcinoma, BCA101 showed durable response after dose cessation. The combination of BCA101 and anti-PD1 antibody improved tumor inhibition in both B16-hEGFR-expressing syngeneic mouse models and in humanized HuNOG-EXL mice bearing human PC-3 xenografts. Together, these results support the clinical development of BCA101 as a monotherapy and in combination with immune checkpoint therapy. SIGNIFICANCE The bifunctional mAb fusion design of BCA101 targets it to the tumor microenvironment where it inhibits EGFR and neutralizes TGFβ to induce immune activation and to suppress tumor growth.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Meena Shri
- Biofusion Therapeutics, Bengaluru, India
| | | | | | | | | | | | - Moni Abraham Kuriakose
- Integrated Head and Neck Oncology Program, MSCTR, Mazumdar Shaw Medical Foundation, Bengaluru, India
- Department of Head and Neck Oncology, Mazumdar Shaw Medical Centre, Narayana Health, Bangalore, India
| | - Ram Bhupal Reddy
- Integrated Head and Neck Oncology Program, MSCTR, Mazumdar Shaw Medical Foundation, Bengaluru, India
| | - Amritha Suresh
- Integrated Head and Neck Oncology Program, MSCTR, Mazumdar Shaw Medical Foundation, Bengaluru, India
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Long-term platinum-based drug accumulation in cancer-associated fibroblasts promotes colorectal cancer progression and resistance to therapy. Nat Commun 2023; 14:746. [PMID: 36765091 PMCID: PMC9918738 DOI: 10.1038/s41467-023-36334-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 01/27/2023] [Indexed: 02/12/2023] Open
Abstract
A substantial proportion of cancer patients do not benefit from platinum-based chemotherapy (CT) due to the emergence of drug resistance. Here, we apply elemental imaging to the mapping of CT biodistribution after therapy in residual colorectal cancer and achieve a comprehensive analysis of the genetic program induced by oxaliplatin-based CT in the tumor microenvironment. We show that oxaliplatin is largely retained by cancer-associated fibroblasts (CAFs) long time after the treatment ceased. We determine that CT accumulation in CAFs intensifies TGF-beta activity, leading to the production of multiple factors enhancing cancer aggressiveness. We establish periostin as a stromal marker of chemotherapeutic activity intrinsically upregulated in consensus molecular subtype 4 (CMS4) tumors and highly expressed before and/or after treatment in patients unresponsive to therapy. Collectively, our study underscores the ability of CT-retaining CAFs to support cancer progression and resistance to treatment.
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Han Y, Miao L, Liu J, Xu X, Yue Z, Xu M, Shu C, Xu L, Hou J. Periodontal soft tissue increase induced by periodontally accelerated osteogenic orthodontics surgery. BMC Oral Health 2022; 22:506. [PMID: 36384587 PMCID: PMC9670531 DOI: 10.1186/s12903-022-02566-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 11/06/2022] [Indexed: 11/17/2022] Open
Abstract
Objectives To quantitatively assess periodontal soft tissue changes, including gingival thickness and keratinized gingiva width after periodontally accelerated osteogenic orthodontics (PAOO) surgery by digital measurements. Methods This study enrolled 15 maxillaries with 89 anterior teeth and 16 mandibles with 94 anterior teeth from Chinese adult patients with skeletal Angle Class III malocclusion for whom PAOO surgery was proposed during orthodontic treatment. Intraoral scanning and cone beam computed tomography (CBCT) examinations were performed before PAOO surgery and 6 months after the surgery. Keratinized gingiva width was measured on the digital model acquired by intraoral scanning. The gingival thickness was measured using a digital three-dimensional (3D) model based on the combination of digital intraoral scanning and CBCT data. Results The mean gingival thickness before surgery was 0.91 ± 0.32 mm and 1.21 ± 0.38 mm at 6-month after PAOO. Patients showed periodontal soft tissue increase with a mean gingival tissue gain of 0.30 ± 0.33 mm. At 1 mm, 2 and 3 mm apical to cemento-enamel junction (CEJ) levels, the gingival thickness increase of the mandible was higher than that of the maxilla (0.38 ± 0.30 mm vs. 0.24 ± 0.31 mm, 0.43 ± 0.35 mm vs. 0.26 ± 0.41 mm, 0.36 ± 0.27 vs. 0.25 ± 0.32 mm, respectively, all P < 0.05). Moreover, the sites of gingival thickness ≤ 1 mm before surgery showed more tissue gain than the sites > 1 mm (0.36 ± 0.32 mm vs. 0.18 ± 0.31 mm, P < 0.001). The mean keratinized gingiva width at T0 was 3.88 ± 1.22 mm, and increased 1.05 ± 1.24 mm 6 months after PAOO surgery. Moreover, a digital 3D model for gingival thickness measurement based on the combination of digital intraoral scanning and CBCT displayed high reliability and accuracy with an intra-class correlation coefficient (ICC) of 0.897. Conclusion PAOO could improve an insufficient quantity of periodontal soft and hard tissues in patients with skeletal Angle Class III malocclusion, including the gingival thickness and keratinized gingiva width. A digital 3D model based on the combination of digital intraoral scanning and CBCT data could provide a new digital measurement of gingival thickness with high accuracy and reliability. Supplementary Information The online version contains supplementary material available at 10.1186/s12903-022-02566-8.
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Roodnat AW, Callaghan B, Doyle C, Henry M, Goljanek-Whysall K, Simpson DA, Sheridan C, Atkinson SD, Willoughby CE. Genome-Wide RNA Sequencing of Human Trabecular Meshwork Cells Treated with TGF-β1: Relevance to Pseudoexfoliation Glaucoma. Biomolecules 2022; 12:1693. [PMID: 36421707 PMCID: PMC9687758 DOI: 10.3390/biom12111693] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 10/15/2022] [Accepted: 11/10/2022] [Indexed: 08/11/2023] Open
Abstract
Pseudoexfoliation glaucoma (XFG) is an aggressive form of secondary open angle glaucoma, characterised by the production of exfoliation material and is estimated to affect 30 million people worldwide. Activation of the TGF-β pathway by TGF-β1 has been implicated in the pathogenesis of pseudoexfoliation glaucoma. To further investigate the role of TGF-β1 in glaucomatous changes in the trabecular meshwork (TM), we used RNA-Seq to determine TGF-β1 induced changes in the transcriptome of normal human trabecular meshwork (HTM) cells. The main purpose of this study was to perform a hypothesis-independent RNA sequencing analysis to investigate genome-wide alterations in the transcriptome of normal HTMs stimulated with TGF-β1 and investigate possible pathophysiological mechanisms driving XFG. Our results identified multiple differentially expressed genes including several genes known to be present in exfoliation material. Significantly altered pathways, biological processes and molecular functions included extracellular matrix remodelling, Hippo and Wnt pathways, the unfolded protein response, oxidative stress, and the antioxidant system. This cellular model of pseudoexfoliation glaucoma can provide insight into disease pathogenesis and support the development of novel therapeutic interventions.
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Affiliation(s)
- Anton W. Roodnat
- Genomic Medicine, Biomedical Sciences Research Institute, Ulster University, Coleraine Campus, Coleraine BT52 1SA, Northern Ireland, UK
- Personalised Medicine Centre, Ulster University, Londonderry BT47 6SB, Northern Ireland, UK
| | - Breedge Callaghan
- Genomic Medicine, Biomedical Sciences Research Institute, Ulster University, Coleraine Campus, Coleraine BT52 1SA, Northern Ireland, UK
| | - Chelsey Doyle
- Genomic Medicine, Biomedical Sciences Research Institute, Ulster University, Coleraine Campus, Coleraine BT52 1SA, Northern Ireland, UK
| | - Megan Henry
- Genomic Medicine, Biomedical Sciences Research Institute, Ulster University, Coleraine Campus, Coleraine BT52 1SA, Northern Ireland, UK
| | - Katarzyna Goljanek-Whysall
- School of Medicine, Physiology, National University of Ireland Galway, H91 W5P7 Galway, Ireland
- Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool L7 8TX, England, UK
| | - David A. Simpson
- The Wellcome-Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Queen’s University, Belfast BT9 7BL, Northern Ireland, UK
| | - Carl Sheridan
- Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool L7 8TX, England, UK
| | - Sarah D. Atkinson
- Personalised Medicine Centre, Ulster University, Londonderry BT47 6SB, Northern Ireland, UK
| | - Colin E. Willoughby
- Genomic Medicine, Biomedical Sciences Research Institute, Ulster University, Coleraine Campus, Coleraine BT52 1SA, Northern Ireland, UK
- Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool L7 8TX, England, UK
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Fung KY, Louis C, Metcalfe RD, Kosasih CC, Wicks IP, Griffin MDW, Putoczki TL. Emerging roles for IL-11 in inflammatory diseases. Cytokine 2021; 149:155750. [PMID: 34689057 DOI: 10.1016/j.cyto.2021.155750] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 10/08/2021] [Accepted: 10/11/2021] [Indexed: 12/16/2022]
Abstract
Interleukin-11 (IL-11) is a cytokine that has been strongly implicated in the pathogenesis of fibrotic diseases and solid malignancies. Elevated IL-11 expression is also associated with several non-malignant inflammatory diseases where its function remains less well-characterized. Here, we summarize current literature surrounding the contribution of IL-11 to the pathogenesis of autoimmune inflammatory diseases, including rheumatoid arthritis, multiple sclerosis, diabetes and systemic sclerosis, as well as other chronic inflammatory conditions such as periodontitis, asthma, chronic obstructive pulmonary disease, psoriasis and colitis.
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Affiliation(s)
- Ka Yee Fung
- Personalised Oncology Division, The Walter and Eliza Hall Institute of Medical Research, Victoria 3052, Australia; Department of Medical Biology, University of Melbourne, Victoria 3053, Australia.
| | - Cynthia Louis
- Department of Medical Biology, University of Melbourne, Victoria 3053, Australia; Inflammation Division, The Walter and Eliza Hall Institute of Medical Research, Victoria 3052, Australia
| | - Riley D Metcalfe
- Department of Biochemistry and Pharmacology, Bio21 Molecular Science and Technology Institute, University of Melbourne, Victoria 3010, Australia
| | - Clara C Kosasih
- Department of Biochemistry and Pharmacology, Bio21 Molecular Science and Technology Institute, University of Melbourne, Victoria 3010, Australia
| | - Ian P Wicks
- Department of Medical Biology, University of Melbourne, Victoria 3053, Australia; Inflammation Division, The Walter and Eliza Hall Institute of Medical Research, Victoria 3052, Australia; Rheumatology Unit, The Royal Melbourne Hospital, Victoria 3050, Australia
| | - Michael D W Griffin
- Department of Biochemistry and Pharmacology, Bio21 Molecular Science and Technology Institute, University of Melbourne, Victoria 3010, Australia
| | - Tracy L Putoczki
- Personalised Oncology Division, The Walter and Eliza Hall Institute of Medical Research, Victoria 3052, Australia; Department of Medical Biology, University of Melbourne, Victoria 3053, Australia.
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Osteoblast Attachment Compromised by High and Low Temperature of Titanium and Its Restoration by UV Photofunctionalization. MATERIALS 2021; 14:ma14195493. [PMID: 34639891 PMCID: PMC8509491 DOI: 10.3390/ma14195493] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 09/10/2021] [Accepted: 09/15/2021] [Indexed: 01/19/2023]
Abstract
Titanium implants undergo temperature fluctuations during manufacturing, transport, and storage. However, it is unknown how this affects their bioactivity. Herein, we explored how storage (six months, dark conditions) and temperature fluctuations (5-50 °C) affected the bioactivity of titanium implants. Stored and fresh acid-etched titanium disks were exposed to different temperatures for 30 min under wet or dry conditions, and their hydrophilicity/hydrophobicity and bioactivity (using osteoblasts derived from rat bone marrow) were evaluated. Ultraviolet (UV) treatment was evaluated as a method of restoring the bioactivity. The fresh samples were superhydrophilic after holding at 5 or 25 °C under wet or dry conditions, and hydrophilic after holding at 50 °C. In contrast, all the stored samples were hydrophobic. For both fresh and stored samples, exposure to 5 or 50 °C reduced osteoblast attachment compared to holding at 25 °C under both wet and dry conditions. Regression analysis indicated that holding at 31 °C would maximize cell attachment (p < 0.05). After UV treatment, cell attachment was the same or better than that before temperature fluctuations. Overall, titanium surfaces may have lower bioactivity when the temperature fluctuates by ≥20 °C (particularly toward lower temperatures), independent of the hydrophilicity/hydrophobicity. UV treatment was effective in restoring the temperature-compromised bioactivity.
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Menendez-Castro C, Cordasic N, Dambietz T, Veelken R, Amann K, Hartner A, Hilgers KF. Correlations Between Interleukin-11 Expression and Hypertensive Kidney Injury in a Rat Model of Renovascular Hypertension. Am J Hypertens 2020; 33:331-340. [PMID: 31840157 DOI: 10.1093/ajh/hpz194] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 10/10/2019] [Accepted: 12/13/2019] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND Interleukin-11 (IL-11) is a pleiotropic cytokine of the interleukin-6 family. Recent studies revealed its crucial role in the development of cardiovascular fibrosis. In this study we examined IL-11 expression levels in the heart and the kidney exposed to high blood pressure in renovascular hypertensive rats and their correlations to fibrotic markers and kidney injury. METHODS Two-kidney, one-clip renovascular hypertension (2K1C) was induced in rats. IL-11 expression was measured by real-time polymerase chain reaction in the left ventricle and the right kidney. The correlation of cardiac IL-11 expression with biomarkers of renal fibrosis was assessed. We further investigated IL-11 expression in 2K1C rats grouped into rats with malignant vs. nonmalignant hypertension (distinguishing criteria: weight loss, number of fibrinoid necrosis, and onion skin lesions). RESULTS Thirty-five days after clipping, mean arterial pressure was significantly increased in 2K1C. Renal IL-11 expression was elevated in 2K1C. In the heart there was only a trend toward higher IL-11 expression in 2K1C. IL-11 in the kidney in 2K1C correlated with the expression of transforming growth factor (TGF)-β1/2, collagens, fibronectin, osteopontin, as well as tissue inhibitors of metalloprotease 1/2. There were also correlations of IL-11 with tissue collagen expansion, number of activated fibroblasts and serum creatinine, but no correlation with mean arterial pressure. Renal expression of IL-11 was highest in rats with malignant hypertension. CONCLUSIONS Renal IL-11 expression of renovascular hypertensive rats is markedly increased and correlates with profibrotic markers and loss of function and might therefore serve as a biomarker for the severity of hypertensive nephrosclerosis.
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Affiliation(s)
- Carlos Menendez-Castro
- Department of Pediatrics and Adolescent Medicine, University Hospital of Erlangen, Erlangen, Germany
| | - Nada Cordasic
- Department of Nephrology and Hypertension, University Hospital of Erlangen, Erlangen, Germany
| | - Thomas Dambietz
- Department of Nephrology and Hypertension, University Hospital of Erlangen, Erlangen, Germany
| | - Roland Veelken
- Department of Nephrology and Hypertension, University Hospital of Erlangen, Erlangen, Germany
| | - Kerstin Amann
- Department of Nephropathology, University Hospital of Erlangen, Erlangen, Germany
| | - Andrea Hartner
- Department of Pediatrics and Adolescent Medicine, University Hospital of Erlangen, Erlangen, Germany
| | - Karl F Hilgers
- Department of Nephrology and Hypertension, University Hospital of Erlangen, Erlangen, Germany
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Strauss FJ, Stähli A, Beer L, Mitulović G, Gilmozzi V, Haspel N, Schwab G, Gruber R. Acid bone lysate activates TGFβ signalling in human oral fibroblasts. Sci Rep 2018; 8:16065. [PMID: 30375456 PMCID: PMC6207660 DOI: 10.1038/s41598-018-34418-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Accepted: 10/12/2018] [Indexed: 02/07/2023] Open
Abstract
Demineralized bone matrix is a widely used allograft from which not only the inorganic mineral but also embedded growth factors are removed by hydrochloric acid (HCl). The cellular response to the growth factors released during the preparation of demineralized bone matrix, however, has not been studied. Here we investigated the in vitro impact of acid bone lysate (ABL) prepared from porcine cortical bone chips on oral fibroblasts. Proteomic analysis of ABL revealed a large spectrum of bone-derived proteins including TGF-β1. Whole genome microarrays and RT-PCR together with the pharmacologic blocking of TGF-β receptor type I kinase with SB431542 showed that ABL activates the TGF-β target genes interleukin 11, proteoglycan 4, and NADPH oxidase 4. Interleukin 11 expression was confirmed at the protein level by ELISA. Immunofluorescence and Western blot showed the nuclear localization of Smad2/3 and increased phosphorylation of Smad3 with ABL, respectively. This effect was independent of whether ABL was prepared from mandible, calvaria or tibia. These results demonstrate that TGF-β is a major growth factor that is removed upon the preparation of demineralized bone matrix.
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Affiliation(s)
- Franz Josef Strauss
- Department of Oral Biology, Medical University of Vienna, Sensengasse 2a, 1090, Vienna, Austria
- Department of Conservative Dentistry, School of Dentistry, University of Chile, Sergio Livingstone 943, Santiago, Chile
| | - Alexandra Stähli
- Department of Oral Biology, Medical University of Vienna, Sensengasse 2a, 1090, Vienna, Austria
- Department of Periodontology, School of Dental Medicine, University of Bern, Freiburgstrasse 7, 3010, Bern, Switzerland
| | - Lucian Beer
- Department of Biomedical Imaging and Image-guided Therapy, Medical University Vienna, Währinger Gürtel 18-20, 1090, Vienna, Austria
- Christian Doppler Laboratory for Cardiac and Thoracic Diagnosis and Regeneration, Medical University Vienna, Währinger Gürtel 18-20, 1090, Vienna, Austria
| | - Goran Mitulović
- Clinical Department of Laboratory Medicine Proteomics Core Facility, Medical University Vienna, Währinger Gürtel 18-20, 1090, Vienna, Austria
| | - Valentina Gilmozzi
- Department of Oral Biology, Medical University of Vienna, Sensengasse 2a, 1090, Vienna, Austria
| | - Nina Haspel
- Department of Oral Biology, Medical University of Vienna, Sensengasse 2a, 1090, Vienna, Austria
| | - Gerhild Schwab
- Department of Oral Biology, Medical University of Vienna, Sensengasse 2a, 1090, Vienna, Austria
| | - Reinhard Gruber
- Department of Oral Biology, Medical University of Vienna, Sensengasse 2a, 1090, Vienna, Austria.
- Department of Periodontology, School of Dental Medicine, University of Bern, Freiburgstrasse 7, 3010, Bern, Switzerland.
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Pickup MW, Owens P, Moses HL. TGF-β, Bone Morphogenetic Protein, and Activin Signaling and the Tumor Microenvironment. Cold Spring Harb Perspect Biol 2017; 9:cshperspect.a022285. [PMID: 28062564 DOI: 10.1101/cshperspect.a022285] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The cellular and noncellular components surrounding the tumor cells influence many aspects of tumor progression. Transforming growth factor β (TGF-β), bone morphogenetic proteins (BMPs), and activins have been shown to regulate the phenotype and functions of the microenvironment and are attractive targets to attenuate protumorigenic microenvironmental changes. Given the pleiotropic nature of the cytokines involved, a full understanding of their effects on numerous cell types in many contexts is necessary for proper clinical intervention. In this review, we will explore the various effects of TGF-β, BMP, and activin signaling on stromal phenotypes known to associate with cancer progression. We will summarize these findings in the context of their tumor suppressive or promoting effects, as well as the molecular changes that these cytokines induce to influence stromal phenotypes.
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Affiliation(s)
- Michael W Pickup
- Department of Cancer Biology and Vanderbilt-Ingram Comprehensive Cancer Center, Nashville, Tennessee 37232
| | - Philip Owens
- Department of Cancer Biology and Vanderbilt-Ingram Comprehensive Cancer Center, Nashville, Tennessee 37232
| | - Harold L Moses
- Department of Cancer Biology and Vanderbilt-Ingram Comprehensive Cancer Center, Nashville, Tennessee 37232
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Knoop C, Edelmayer M, Janjić K, Pensch M, Fischer MB, Gruber R, Agis H. Difference in release kinetics of unwashed and washed platelet-released supernatants from bone substitute materials: the impact of platelet preparation modalities. J Periodontal Res 2017; 52:772-786. [DOI: 10.1111/jre.12447] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/09/2016] [Indexed: 12/22/2022]
Affiliation(s)
- C. Knoop
- Department of Conservative Dentistry and Periodontology; School of Dentistry; Medical University of Vienna; Vienna Austria
- Austrian Cluster for Tissue Regeneration; Vienna Austria
| | - M. Edelmayer
- Austrian Cluster for Tissue Regeneration; Vienna Austria
- Department of Oral Surgery; School of Dentistry; Medical University of Vienna; Vienna Austria
| | - K. Janjić
- Department of Conservative Dentistry and Periodontology; School of Dentistry; Medical University of Vienna; Vienna Austria
- Austrian Cluster for Tissue Regeneration; Vienna Austria
| | - M. Pensch
- Austrian Cluster for Tissue Regeneration; Vienna Austria
- Department of Oral Surgery; School of Dentistry; Medical University of Vienna; Vienna Austria
| | - M. B. Fischer
- Department of Blood Group Serology and Transfusion Medicine; Medical University of Vienna; Vienna Austria
- Center for Biomedical Technology; Danube University Krems; Krems Austria
| | - R. Gruber
- Austrian Cluster for Tissue Regeneration; Vienna Austria
- Department of Oral Biology; School of Dentistry; Medical University of Vienna; Vienna Austria
| | - H. Agis
- Department of Conservative Dentistry and Periodontology; School of Dentistry; Medical University of Vienna; Vienna Austria
- Austrian Cluster for Tissue Regeneration; Vienna Austria
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Bossù M, Montuori M, Casani D, Di Giorgio G, Pacifici A, Ladniak B, Polimeni A. Altered transcription of inflammation-related genes in dental pulp of coeliac children. Int J Paediatr Dent 2016; 26:351-6. [PMID: 26440733 DOI: 10.1111/ipd.12207] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
BACKGROUND Coeliac disease is a chronic small intestinal immune-mediated enteropathy precipitated by exposure to dietary gluten, and possible relationships between coeliac disease and dental pathogenic conditions during childhood have been poorly investigated. AIM The dental pulp plays a pivotal role in the immune defence against possible entry of pathogens from teeth, and the aim of this work was to investigate quantitative transcription levels of selected genes (IL-9, IL-11, IL-15, IL-18, IL-21, IL-27, MICA, IFN-γ) coding for pro-inflammatory immune innate activities in the pulp of primary teeth from healthy children and children with coeliac disease. DESIGN The pulp from primary teeth of 10 healthy children and 10 children with coeliac disease was used to extract RNA and prepare cDNA for quantitative PCR transcription analysis employing commercial nucleotide probes for selected genes. RESULTS In children with coeliac disease, the genes coding for pro-inflammatory cytokines IFN-γ, IL-11, IL-18, and IL-21 were significantly overexpressed, suggesting the possible importance of these cytokines in the relationships between coeliac disease and dental disorders. CONCLUSION For the first time, we reported in dental pulp of children possible relationships between coeliac disease and modulation in transcription of cytokine-dependent inflammatory activities.
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Affiliation(s)
- Maurizio Bossù
- Department of Oral and Maxillofacial Sciences, Sapienza University of Rome, Rome, Italy
| | - Monica Montuori
- Department of Oral and Maxillofacial Sciences, Sapienza University of Rome, Rome, Italy
| | - Daniela Casani
- Department DIBAF, Universita degli Studi della Tuscia, Viterbo, Italy
| | - Gianni Di Giorgio
- Department of Oral and Maxillofacial Sciences, Sapienza University of Rome, Rome, Italy
| | - Andrea Pacifici
- Department of Oral and Maxillofacial Sciences, Sapienza University of Rome, Rome, Italy
| | - Barbara Ladniak
- Department of Oral and Maxillofacial Sciences, Sapienza University of Rome, Rome, Italy
| | - Antonella Polimeni
- Department of Oral and Maxillofacial Sciences, Sapienza University of Rome, Rome, Italy
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Ramos UD, Ayub LG, Reino DM, Grisi MF, Taba M, Souza SL, Palioto DB, Novaes AB. Antimicrobial photodynamic therapy as an alternative to systemic antibiotics: results from a double-blind, randomized, placebo-controlled, clinical study on type 2 diabetics. J Clin Periodontol 2016; 43:147-55. [DOI: 10.1111/jcpe.12498] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/22/2015] [Indexed: 11/28/2022]
Affiliation(s)
- Umberto D. Ramos
- Department of Bucco-Maxillo-Facial Surgery and Traumatology and Periodontology; School of Dentistry of Ribeirao Preto; University of Sao Paulo; Ribeirão Preto SP Brazil
| | - Lauro G. Ayub
- Department of Bucco-Maxillo-Facial Surgery and Traumatology and Periodontology; School of Dentistry of Ribeirao Preto; University of Sao Paulo; Ribeirão Preto SP Brazil
| | - Danilo M. Reino
- Department of Bucco-Maxillo-Facial Surgery and Traumatology and Periodontology; School of Dentistry of Ribeirao Preto; University of Sao Paulo; Ribeirão Preto SP Brazil
| | - Márcio F.M. Grisi
- Department of Bucco-Maxillo-Facial Surgery and Traumatology and Periodontology; School of Dentistry of Ribeirao Preto; University of Sao Paulo; Ribeirão Preto SP Brazil
| | - Mário Taba
- Department of Bucco-Maxillo-Facial Surgery and Traumatology and Periodontology; School of Dentistry of Ribeirao Preto; University of Sao Paulo; Ribeirão Preto SP Brazil
| | - Sérgio L.S. Souza
- Department of Bucco-Maxillo-Facial Surgery and Traumatology and Periodontology; School of Dentistry of Ribeirao Preto; University of Sao Paulo; Ribeirão Preto SP Brazil
| | - Daniela B. Palioto
- Department of Bucco-Maxillo-Facial Surgery and Traumatology and Periodontology; School of Dentistry of Ribeirao Preto; University of Sao Paulo; Ribeirão Preto SP Brazil
| | - Arthur B. Novaes
- Department of Bucco-Maxillo-Facial Surgery and Traumatology and Periodontology; School of Dentistry of Ribeirao Preto; University of Sao Paulo; Ribeirão Preto SP Brazil
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Cheng J, Koenig SN, Kuivaniemi HS, Garg V, Hans CP. Pharmacological inhibitor of notch signaling stabilizes the progression of small abdominal aortic aneurysm in a mouse model. J Am Heart Assoc 2014; 3:e001064. [PMID: 25349182 PMCID: PMC4338693 DOI: 10.1161/jaha.114.001064] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Background The progression of abdominal aortic aneurysm (AAA) involves a sustained influx of proinflammatory macrophages, which exacerbate tissue injury by releasing cytokines, chemokines, and matrix metalloproteinases. Previously, we showed that Notch deficiency reduces the development of AAA in the angiotensin II–induced mouse model by preventing infiltration of macrophages. Here, we examined whether Notch inhibition in this mouse model prevents progression of small AAA and whether these effects are associated with altered macrophage differentiation. Methods and Results Treatment with pharmacological Notch inhibitor (DAPT [N‐(N‐[3,5‐difluorophenacetyl]‐L‐alanyl)‐S‐phenylglycine t‐butyl ester]) at day 3 or 8 of angiotensin II infusion arrested the progression of AAA in Apoe−/− mice, as demonstrated by a decreased luminal diameter and aortic width. The abdominal aortas of Apoe−/− mice treated with DAPT showed decreased expression of matrix metalloproteinases and presence of elastin precursors including tropoelastin and hyaluronic acid. Marginal adventitial thickening observed in the aorta of DAPT‐treated Apoe−/− mice was not associated with increased macrophage content, as observed in the mice treated with angiotensin II alone. Instead, DAPT‐treated abdominal aortas showed increased expression of Cd206‐positive M2 macrophages and decreased expression of Il12‐positive M1 macrophages. Notch1 deficiency promoted M2 differentiation of macrophages by upregulating transforming growth factor β2 in bone marrow–derived macrophages at basal levels and in response to IL4. Protein expression of transforming growth factor β2 and its downstream effector pSmad2 also increased in DAPT‐treated Apoe−/− mice, indicating a potential link between Notch and transforming growth factor β2 signaling in the M2 differentiation of macrophages. Conclusions Pharmacological inhibitor of Notch signaling prevents the progression of AAA by macrophage differentiation–dependent mechanisms. The study also provides insights for novel therapeutic strategies to prevent the progression of small AAA.
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Affiliation(s)
- Jeeyun Cheng
- Center for Cardiovascular and Pulmonary Research and The Heart Center, Nationwide Children's Hospital, The Ohio State University, Columbus, OH (J.C., S.N.K., V.G., C.P.H.)
| | - Sara N Koenig
- Center for Cardiovascular and Pulmonary Research and The Heart Center, Nationwide Children's Hospital, The Ohio State University, Columbus, OH (J.C., S.N.K., V.G., C.P.H.)
| | - Helena S Kuivaniemi
- The Sigfried and Janet Weis Center for Research, Geisinger Health System, Danville, PA (H.S.K.)
| | - Vidu Garg
- Center for Cardiovascular and Pulmonary Research and The Heart Center, Nationwide Children's Hospital, The Ohio State University, Columbus, OH (J.C., S.N.K., V.G., C.P.H.) Department of Pediatrics, The Ohio State University, Columbus, OH (V.G., C.P.H.) Department of Molecular Genetics, The Ohio State University, Columbus, OH (V.G.)
| | - Chetan P Hans
- Center for Cardiovascular and Pulmonary Research and The Heart Center, Nationwide Children's Hospital, The Ohio State University, Columbus, OH (J.C., S.N.K., V.G., C.P.H.) Department of Pediatrics, The Ohio State University, Columbus, OH (V.G., C.P.H.)
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Stähli A, Bosshardt D, Sculean A, Gruber R. Emdogain-regulated gene expression in palatal fibroblasts requires TGF-βRI kinase signaling. PLoS One 2014; 9:e105672. [PMID: 25197981 PMCID: PMC4157743 DOI: 10.1371/journal.pone.0105672] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Accepted: 07/25/2014] [Indexed: 12/11/2022] Open
Abstract
Genome-wide microarrays have suggested that Emdogain regulates TGF-β target genes in gingival and palatal fibroblasts. However, definitive support for this contention and the extent to which TGF-β signaling contributes to the effects of Emdogain has remained elusive. We therefore studied the role of the TGF-β receptor I (TGF-βRI) kinase to mediate the effect of Emdogain on palatal fibroblasts. Palatal fibroblasts were exposed to Emdogain with and without the inhibitor for TGF-βRI kinase, SB431542. Emdogain caused 39 coding genes to be differentially expressed in palatal fibroblasts by microarray analysis (p<0.05; >10-fold). Importantly, in the presence of the TGF-βRI kinase inhibitor SB431542, Emdogain failed to cause any significant changes in gene expression. Consistent with this mechanism, three independent TGF-βRI kinase inhibitors and a TGF-β neutralizing antibody abrogated the increased expression of IL-11, a selected Emdogain target gene. The MAPK inhibitors SB203580 and U0126 lowered the impact of Emdogain on IL-11 expression. The data support that TGF-βRI kinase activity is necessary to mediate the effects of Emdogain on gene expression in vitro.
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Affiliation(s)
- Alexandra Stähli
- Department of Periodontology, School of Dental Medicine, University of Bern, Bern, Switzerland
- Laboratory of Oral Cell Biology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Dieter Bosshardt
- Department of Periodontology, School of Dental Medicine, University of Bern, Bern, Switzerland
- Robert K. Schenk Laboratory of Oral Histology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Anton Sculean
- Department of Periodontology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Reinhard Gruber
- Department of Periodontology, School of Dental Medicine, University of Bern, Bern, Switzerland
- Laboratory of Oral Cell Biology, School of Dental Medicine, University of Bern, Bern, Switzerland
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15
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Richards TR, Mortlock JHH, Pinard CL, Whelan NC, Revay T, LaMarre J. Interleukin 11 expression in the normal canine eye. Vet Ophthalmol 2013; 17:46-56. [PMID: 23552106 DOI: 10.1111/vop.12040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
OBJECTIVES The purpose of this study was to characterize the expression of interleukin-11 (IL-11), a cytokine with anti-inflammatory, cytoprotective, and immune-modulating characteristics, in the canine eye. PROCEDURES Normal canine eyes were collected from clinically healthy dogs that had been euthanized for reasons unrelated to this study. The distribution of IL-11 expression in the different ocular layers was evaluated by immunofluorescence (eight eyes). Expression levels were quantified (based on fluorescence intensity) using pixel density analysis. Primary cell cultures were derived from all three corneal cell layers. IL-11 mRNA expression was assessed in these cultures using quantitative RT-PCR before and after treatment with TGF-β1, a known inducer of IL-11 expression. IL-11 protein expression was also assessed in the media of these cells by Western blot analysis. RESULTS IL-11 protein was detected in the corneal epithelium, keratocytes, and the corneal endothelium of the normal canine eyes examined using immunofluorescence. Baseline IL-11 mRNA expression was noted in the corneal epithelium, fibroblasts, and endothelium using quantitative RT-PCR. Treatment of canine corneal cell lines with TGF-β1 resulted in statistically significant increases in IL-11 expression in the corneal epithelium, endothelial and fibroblast cell lines with strongest induction noted in the fibroblasts and endothelium. CONCLUSION This is the first description of IL-11 expression in the canine eye. The protein and mRNA appear to be constitutively present throughout all layers of the cornea and are increased by TGF-β1, a cytokine important in ocular inflammation and disease.
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Affiliation(s)
- Tara R Richards
- Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada, N1G 2W1
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16
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Maeda H, Wada N, Tomokiyo A, Monnouchi S, Akamine A. Prospective potency of TGF-β1 on maintenance and regeneration of periodontal tissue. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2013; 304:283-367. [PMID: 23809439 DOI: 10.1016/b978-0-12-407696-9.00006-3] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Periodontal ligament (PDL) tissue, central in the periodontium, plays crucial roles in sustaining tooth in the bone socket. Irreparable damages of this tissue provoke tooth loss, causing a decreased quality of life. The question arises as to how PDL tissue is maintained or how the lost PDL tissue can be regenerated. Stem cells included in PDL tissue (PDLSCs) are widely accepted to have the potential to maintain or regenerate the periodontium, but PDLSCs are very few in number. In recent studies, undifferentiated clonal human PDL cell lines were developed to elucidate the applicable potentials of PDLSCs for the periodontal regenerative medicine based on cell-based tissue engineering. In addition, it has been suggested that transforming growth factor-beta 1 is an eligible factor for the maintenance and regeneration of PDL tissue.
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Affiliation(s)
- Hidefumi Maeda
- Department of Endodontology, Kyushu University Hospital, Fukuoka, Japan.
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17
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Interleukin-4 and interleukin-13 inhibit the expression of leukemia inhibitory factor and interleukin-11 in fibroblasts. Mol Immunol 2012; 49:601-10. [DOI: 10.1016/j.molimm.2011.10.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2011] [Revised: 10/20/2011] [Accepted: 10/26/2011] [Indexed: 11/20/2022]
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18
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Scheres N, Laine ML, de Vries TJ, Everts V, van Winkelhoff AJ. Gingival and periodontal ligament fibroblasts differ in their inflammatory response to viable Porphyromonas gingivalis. J Periodontal Res 2009; 45:262-70. [PMID: 19778323 DOI: 10.1111/j.1600-0765.2009.01229.x] [Citation(s) in RCA: 89] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
BACKGROUND AND OBJECTIVE Porphyromonas gingivalis is an oral pathogen strongly associated with destruction of the tooth-supporting tissues in human periodontitis. Gingival fibroblasts (GF) and periodontal ligament fibroblasts (PDLF) are functionally different cell types in the periodontium that can participate in the host immune response in periodontitis. This study aimed to investigate the effects of viable P. gingivalis on the expression of genes associated with inflammation and bone degradation by these fibroblast subsets. MATERIAL AND METHODS Primary human GF and PDLF from six healthy donors were challenged in vitro with viable P. gingivalis W83 for 6 h. Gene expression of inflammatory cytokines in GF and PDLF was analyzed using real-time PCR, and protein expression was analyzed using ELISA. RESULTS Viable P. gingivalis induced a strong in vitro inflammatory response in both GF and PDLF. We found increased gene expression of interleukin (IL)-1beta, IL-6, IL-8, tumor necrosis factor-alpha, monocyte chemotactic protein-1 and regulated upon activation, normal T-cell expressed and secreted (RANTES). Macrophage colony-stimulating factor was induced and the expression of osteoprotegerin was decreased in GF, but not in PDLF. In nonchallenged cells, a higher level of expression of IL-6 was observed in GF than in PDLF. Between individual donors there was large heterogeneity in responsiveness to P. gingivalis. Also, in each individual, either GF or PDLF was more responsive to P. gingivalis. CONCLUSION Considerable heterogeneity in responsiveness to P. gingivalis exists both between GF and PDLF and between individuals, which may be crucial determinants for the susceptibility to develop periodontitis.
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Affiliation(s)
- N Scheres
- Departments of Oral Microbiology, Oral Cell Biology and Periodontology, Academic Centre for Dentistry Amsterdam, University of Amsterdam and VU University Amsterdam, Research Institute MOVE, the Netherlands
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Palmqvist P, Lundberg P, Lundgren I, Hänström L, Lerner UH. IL-1beta and TNF-alpha regulate IL-6-type cytokines in gingival fibroblasts. J Dent Res 2008; 87:558-63. [PMID: 18502965 DOI: 10.1177/154405910808700614] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
UNLABELLED Interleukin-6 (IL-6)-type cytokines are pleiotropic molecules capable of stimulating bone resorption and expressed by numerous cell types. In the present study, we tested the hypothesis that gingival fibroblasts may exert local osteotropic effects through production of IL-6 and related cytokines. IL-6-type cytokine expression and regulation by IL-1beta and tumor necrosis factor-alpha (TNF-alpha) were studied in fibroblasts from the non-inflamed gingiva of healthy individuals. Constitutive mRNA expression of IL-6, IL-11, and leukemia inhibitory factor (LIF), but not of oncostatin M (OSM), was demonstrated, as was concentration-dependent stimulation of IL-6 and LIF mRNA and of protein by IL-1beta and TNF-alpha. IL-11 mRNA and protein were concentration-dependently stimulated by IL-1beta. The signaling pathway involved in IL-6 and LIF mRNA stimulation involved MAP kinases, but not NF-kappaB. The findings support the view that resident cells may influence the pathogenesis of periodontal disease through osteotropic IL-6-type cytokine production mediated by activation of MAP kinases. ABBREVIATIONS IL-1alpha (interleukin-1alpha); IL-1beta (interleukin-1beta); IL-6 (interleukin-6); IL-11 (interleukin-11); LIF (leukemia inhibitory factor); OSM (oncostatin M); alpha(1)-coll. I (alpha(1)-collagen I); ALP (alkaline phosphatase); BMP-2 (bone morphogenetic protein-2); OC (osteocalcin); BSP (bone sialoprotein); TNFR I (tumor necrosis factor receptor I); TNFR II (tumor necrosis factor receptor II); IL-1R1 (interleukin-1 receptor 1); GAPDH (glyceraldehyde-3-phosphate dehydrogenase); RPL13A (ribosomal protein L13A); mRNA (messenger ribonucleic acid); cDNA (complementary deoxyribonucleic acid); PCR (polymerase chain-reaction); BCA (bicinchoninic acid); ELISA (enzyme-linked immunosorbent assay); alpha-MEM (alpha modification of Minimum Essential Medium); and FCS (fetal calf serum).
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Affiliation(s)
- P Palmqvist
- Department of Oral Cell Biology, Umeå University, Umeå, Sweden.
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Pinkerton MN, Wescott DC, Gaffey BJ, Beggs KT, Milne TJ, Meikle MC. Cultured human periodontal ligament cells constitutively express multiple osteotropic cytokines and growth factors, several of which are responsive to mechanical deformation. J Periodontal Res 2008; 43:343-51. [DOI: 10.1111/j.1600-0765.2007.01040.x] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Debacq-Chainiaux F, Pascal T, Boilan E, Bastin C, Bauwens E, Toussaint O. Screening of senescence-associated genes with specific DNA array reveals the role of IGFBP-3 in premature senescence of human diploid fibroblasts. Free Radic Biol Med 2008; 44:1817-32. [PMID: 18329388 DOI: 10.1016/j.freeradbiomed.2008.02.001] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2007] [Revised: 12/29/2007] [Accepted: 02/05/2008] [Indexed: 02/05/2023]
Abstract
Repeated exposures to sublethal concentrations of tert-butylhydroperoxide and ethanol trigger premature senescence of WI-38 human diploid fibroblasts. We found 16 replicative senescence-related genes with similar alterations in expression level in replicative senescence and two models of stress-induced premature senescence. Among these genes was IGFBP-3. Using a siRNA approach, we showed that IGFBP-3 regulates the appearance of several biomarkers of senescence after repeated exposures of WI-38 fibroblasts to tert-butylhydroperoxide and ethanol.
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Affiliation(s)
- Florence Debacq-Chainiaux
- Unit of Research on Cellular Biology, Department of Biology, University of Namur, Rue de Bruxelles, B-5000 Namur, Belgium
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Leon ER, Iwasaki K, Komaki M, Kojima T, Ishikawa I. Osteogenic effect of interleukin-11 and synergism with ascorbic acid in human periodontal ligament cells. J Periodontal Res 2007; 42:527-35. [DOI: 10.1111/j.1600-0765.2007.00977.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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23
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Pascal T, Debacq-Chainiaux F, Boilan E, Ninane N, Raes M, Toussaint O. Heme oxygenase-1 and interleukin-11 are overexpressed in stress-induced premature senescence of human WI-38 fibroblasts induced by tert-butylhydroperoxide and ethanol. Biogerontology 2007; 8:409-22. [PMID: 17295091 DOI: 10.1007/s10522-007-9084-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2007] [Accepted: 01/12/2007] [Indexed: 01/25/2023]
Abstract
Acute repeated exposures to subcytotoxic concentrations of tert-butylhydroperoxide and ethanol trigger premature senescence of human diploid fibroblasts. In the present work we found an increased mRNA and protein level of interleukin-11 and heme oxygenase-1 in premature senescence of WI-38 human diploid foetal lung fibroblasts induced by both tert-butylhydroperoxide and ethanol. We tested whether interleukin-11 and heme oxygenase-1 could protect against tert-butylhydroperoxide- or ethanol-induced premature senescence when stable overexpression was established using a retroviral vector-based transduction. No protective effect was found against the decrease of the proliferative potential, the increase of the proportion of senescence-associated ss-galactosidase positive cells and the increase of the mRNA levels of six senescence-associated genes.
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Affiliation(s)
- Thierry Pascal
- Unit of Research on Cellular Biology (URBC), Department of Biology, University of Namur (FUNDP), Rue de Bruxelles, 5000, Namur, Belgium
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