1
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Kong Z, Zhu L, Liu Y, Liu Y, Chen G, Jiang T, Wang H. Effects of azithromycin exposure during pregnancy at different stages, doses and courses on testicular development in fetal mice. Biomed Pharmacother 2024; 170:116063. [PMID: 38154271 DOI: 10.1016/j.biopha.2023.116063] [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: 10/14/2023] [Revised: 12/16/2023] [Accepted: 12/21/2023] [Indexed: 12/30/2023] Open
Abstract
Azithromycin is a commonly used antibiotic during pregnancy, but some studies have suggested its potential developmental toxicity. Currently, the effects and mechanisms of prenatal azithromycin exposure (PAzE) on fetal testicular development are still unclear. The effects of prenatal exposure to the same drug on fetal testicular development could vary depending on different stages, doses, and courses. Hence, in this study, based on clinical medication characteristics, Kunming mice was administered intragastrically with azithromycin at different stages (mid-/late-pregnancy), doses (50, 100, 200 mg/kg·d), and courses (single-/multi-course). Fetal blood and testicular samples were collected on GD18 for relevant assessments. The results indicated that PAzE led to changes in fetal testicular morphology, reduced cell proliferation, increased apoptosis, and decreased expression of markers related to Leydig cells (Star), Sertoli cells (Wt1), and spermatogonia (Plzf). Further investigation revealed that the effects of PAzE on fetal testicular development were characterized by mid-pregnancy, high dose (clinical dose), and single course having more pronounced effects. Additionally, the TGFβ/Smad and Nrf2 signaling pathways may be involved in the changes in fetal testicular development induced by PAzE. In summary, this study confirmed that PAzE influences fetal testicular morphological development and multicellular function. It provided theoretical and experimental evidence for guiding the rational use of azithromycin during pregnancy and further exploring the mechanisms underlying its developmental toxicity on fetal testicles.
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Affiliation(s)
- Ziyu Kong
- Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan 430071, China
| | - Lu Zhu
- Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan 430071, China
| | - Yi Liu
- Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan 430071, China
| | - Yi Liu
- Zhongnan Hospital of Wuhan University, Wuhan 430071, China
| | - Guanghui Chen
- Wuhan University People's Hospital, Wuhan 430071, China
| | - Tao Jiang
- Suizhou Emergency Medical Center, Suizhou 441300, China.
| | - Hui Wang
- Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan 430071, China; Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan 430071, China.
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2
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Al-Naqshbandi AA, Nafee Darogha S, Asaaf Maulood K. Genotypic and Allelic Prevalence of the TGF- Β1 +869 C/T SNP and Their Relationship to Seminogram in Infertile Males. Rep Biochem Mol Biol 2023; 12:318-331. [PMID: 38317808 PMCID: PMC10838586 DOI: 10.61186/rbmb.12.2.318] [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: 06/12/2023] [Accepted: 08/18/2023] [Indexed: 02/07/2024]
Abstract
Background The influence of cytokine in the reproductive system is becoming increasingly important. The polymorphisms of the transforming growth factor-β1 (TGF-β1) gene are involved in male infertility. This study aimed to demonstrate the association between TGF-β1 and infertility and to investigate its impact on semen quality. Methods In this case-control study, serum TGF-β1 concentration was measured in 144 patients diagnosed with infertility and 40 fertile males by enzyme-linked immunosorbent assay (ELISA). The tetra-amplification refractory mutation system-PCR (T-ARMS-PCR) analysis was performed to detect the genotyping of the TGF-β1 (+869 C/T) (rs1800470) SNPs gene. Results Serum concentration of TGF-β1 was less in infertile males compared to fertile ones. The detected and more effective genotypes and alleles of TGF-β1 gene polymorphic on male infertility were, in normozoospermic group, CT genotype, probability (p)= 0.45, relative risk (RR)= 1.56, confidence intervals (CI): 0.58-4.22, and T allele (p= 0.46, RR= 1.32, CI: 0.65-2.69), in oligozoospermic and azoospermic groups, CC genotype (p= 0.32, RR= 1.58, CI: 0.73-3.41), (p= 0.013, RR= 3.50, CI: 1.40-8.73), and allele C (p= 0.44, RR= 1.32, CI: 0.73-2.38), (p= 0.06, RR= 2.14, CI: 1.02-4.50), respectively. The recessive model (TT+CT) showed increased risk among normozoospermic group (p=0.44, RR=1.67, CI:0.60-4.62). The serum concentration of TGF-β1 with CT and TT genotypes was less than that of CC genotype. TGF-β1 C/T genotype correlated with low sperm number, high immotile sperm, and high abnormal sperm morphology. Conclusions Our study revealed that the TGF-β1(rs1800470) gene polymorphisms are associated negatively with semen quality.
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Affiliation(s)
| | - Suhaila Nafee Darogha
- Department of Biology, College of Education, Scientific Department, University of Salahaddin, Kurdistan Region, Iraq.
| | - Kalthum Asaaf Maulood
- Department of Biology, College of Education, Scientific Department, University of Salahaddin, Kurdistan Region, Iraq.
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3
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Sachse A, Hasenbein I, Hortschansky P, Schmuck KD, Maenz S, Illerhaus B, Kuehmstedt P, Ramm R, Huber R, Kunisch E, Horbert V, Gunnella F, Roth A, Schubert H, Kinne RW. BMP-2 (and partially GDF-5) coating significantly accelerates and augments bone formation close to hydroxyapatite/tricalcium-phosphate/brushite implant cylinders for tibial bone defects in senile, osteopenic sheep. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2023; 34:31. [PMID: 37378714 PMCID: PMC10307740 DOI: 10.1007/s10856-023-06734-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 05/30/2023] [Indexed: 06/29/2023]
Abstract
Bilateral defects (diameter 8 mm) in the medial tibial head of senile, osteopenic female sheep (n = 48; 9.63 ± 0.10 years; mean ± SEM) were treated with hydroxyapatite (HA)/beta-tricalcium phosphate (β-TCP)/dicalcium phosphate dihydrate (DCPD; brushite) cylinders coated with BMP-2 (25 or 250 micrograms) or growth differentiation factor (GDF)-5 (125 or 1250 micrograms; left side); cylinders without BMP served as controls (right side). Three, 6, and 9 months post-operation (n = 6 each group), bone structure and formation were analyzed in vivo by X-ray and ex vivo by osteodensitometry, histomorphometry, and micro-computed tomography (micro-CT) at 3 and 9 months. Semi-quantitative X-ray evaluation showed significantly increasing bone densities around all implant cylinders over time. High-dose BMP-2-coated cylinders (3 and 9 months) and low-dose GDF-5-coated cylinders (3 and 6 months) demonstrated significantly higher densities than controls (dose-dependent for BMP-2 at 3 months). This was confirmed by osteodensitometry at 9 months for high-dose BMP-2-coated cylinders (and selected GDF-5 groups), and was again dose-dependent for BMP-2. Osteoinduction by BMP-2 was most pronounced in the adjacent bone marrow (dynamic histomorphometry/micro-CT). BMP-2 (and partially GDF-5) significantly increased the bone formation in the vicinity of HA/TCP/DCPD cylinders used to fill tibial bone defects in senile osteopenic sheep and may be suitable for surgical therapy of critical size, non-load-bearing bone defects in cases of failed tibial head fracture or defect healing.
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Affiliation(s)
- André Sachse
- Experimental Rheumatology Unit, Orthopedic Professorship, Jena University Hospital, Waldkliniken Eisenberg GmbH, Eisenberg, Germany
- Orthopedic Professorship, Jena University Hospital, Waldkliniken Eisenberg GmbH, Eisenberg, Germany
| | - Ines Hasenbein
- Experimental Rheumatology Unit, Orthopedic Professorship, Jena University Hospital, Waldkliniken Eisenberg GmbH, Eisenberg, Germany
- Orthopedic Professorship, Jena University Hospital, Waldkliniken Eisenberg GmbH, Eisenberg, Germany
| | - Peter Hortschansky
- Leibniz-Institute for Natural Products Research and Infection Biology-Hans-Knoell-Institute, Jena, Germany
| | - Klaus D Schmuck
- Johnson & Johnson Medical GmbH, DePuy Synthes, Norderstedt, Germany
| | - Stefan Maenz
- Chair of Materials Science, Otto Schott Institute of Materials Research, Friedrich Schiller University Jena, Jena, Germany
| | - Bernhard Illerhaus
- Federal Institute for Materials Research and Testing (BAM), Berlin, Germany
| | - Peter Kuehmstedt
- Fraunhofer Institute for Applied Optics and Precision Engineering IOF, Jena, Germany
| | - Roland Ramm
- Fraunhofer Institute for Applied Optics and Precision Engineering IOF, Jena, Germany
| | - René Huber
- Institute of Clinical Chemistry, Hannover Medical School, Hannover, Germany
| | - Elke Kunisch
- Experimental Rheumatology Unit, Orthopedic Professorship, Jena University Hospital, Waldkliniken Eisenberg GmbH, Eisenberg, Germany
| | - Victoria Horbert
- Experimental Rheumatology Unit, Orthopedic Professorship, Jena University Hospital, Waldkliniken Eisenberg GmbH, Eisenberg, Germany
| | - Francesca Gunnella
- Experimental Rheumatology Unit, Orthopedic Professorship, Jena University Hospital, Waldkliniken Eisenberg GmbH, Eisenberg, Germany
| | - Andreas Roth
- Bereich Endoprothetik/Orthopädie, Klinik für Orthopädie, Unfallchirurgie und Plastische Chirurgie, Uniklinik Leipzig AöR, Leipzig, Germany
| | - Harald Schubert
- Institute of Laboratory Animal Sciences and Welfare, Jena University Hospital, Jena, Germany
| | - Raimund W Kinne
- Experimental Rheumatology Unit, Orthopedic Professorship, Jena University Hospital, Waldkliniken Eisenberg GmbH, Eisenberg, Germany.
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4
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Wu JY, Yeager K, Tavakol DN, Morsink M, Wang B, Soni RK, Hung CT, Vunjak-Novakovic G. Directed differentiation of human iPSCs into mesenchymal lineages by optogenetic control of TGF-β signaling. Cell Rep 2023; 42:112509. [PMID: 37178118 PMCID: PMC10278972 DOI: 10.1016/j.celrep.2023.112509] [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: 06/24/2022] [Revised: 12/28/2022] [Accepted: 04/28/2023] [Indexed: 05/15/2023] Open
Abstract
In tissue development and homeostasis, transforming growth factor (TGF)-β signaling is finely coordinated by latent forms and matrix sequestration. Optogenetics can offer precise and dynamic control of cell signaling. We report the development of an optogenetic human induced pluripotent stem cell system for TGF-β signaling and demonstrate its utility in directing differentiation into the smooth muscle, tenogenic, and chondrogenic lineages. Light-activated TGF-β signaling resulted in expression of differentiation markers at levels close to those in soluble factor-treated cultures, with minimal phototoxicity. In a cartilage-bone model, light-patterned TGF-β gradients allowed the establishment of hyaline-like layer of cartilage tissue at the articular surface while attenuating with depth to enable hypertrophic induction at the osteochondral interface. By selectively activating TGF-β signaling in co-cultures of light-responsive and non-responsive cells, undifferentiated and differentiated cells were simultaneously maintained in a single culture with shared medium. This platform can enable patient-specific and spatiotemporally precise studies of cellular decision making.
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Affiliation(s)
- Josephine Y Wu
- Department of Biomedical Engineering, Columbia University, New York, NY 10032, USA
| | - Keith Yeager
- Department of Biomedical Engineering, Columbia University, New York, NY 10032, USA
| | | | - Margaretha Morsink
- Department of Biomedical Engineering, Columbia University, New York, NY 10032, USA
| | - Bryan Wang
- Department of Medicine, Columbia University, New York, NY 10032, USA
| | - Rajesh Kumar Soni
- Proteomics and Macromolecular Crystallography Shared Resource, Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY 10032, USA
| | - Clark T Hung
- Department of Biomedical Engineering, Columbia University, New York, NY 10032, USA
| | - Gordana Vunjak-Novakovic
- Department of Biomedical Engineering, Columbia University, New York, NY 10032, USA; Department of Medicine, Columbia University, New York, NY 10032, USA.
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5
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Kuroda A, Mineo A, Shoji S, Inoue G, Saito W, Sekiguchi H, Takaso M, Uchida K. Effect of spheroid size on gene expression profiles of a mouse mesenchymal stem cell line in spheroid culture. Biomed Mater Eng 2023; 34:67-76. [PMID: 35694914 DOI: 10.3233/bme-221406] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
BACKGROUND Mesenchymal stem cell (MSC)-based therapies offer potential for bone repair. MSC spheroid cultures may harbor enhanced therapeutic potential over MSC monolayers through increased secretion of trophic factors. However, the impact of spheroid size on trophic factor expression is unclear. OBJECTIVE We investigated the effect of spheroid size on trophic factor-related gene expression. METHODS KUM10, a murine MSC line was used. RNA-seq was used to screen the transcriptional profiles of MSC monolayer and spheroid cultures. Differentially expressed genes identified in RNA-seq were evaluated by q-PCR in cultures of 5 × 104 (S group), 5 × 105 (M group), 5 × 106 (L group) cells/well. RESULTS Comparison of expression levels between KUM10 monolayer and spheroid cultures identified 2140 differentially expressed genes, of which 1047 were upregulated and 1093 were downregulated in KUM10 spheroids. Among these, 12 upregulated genes (Bmp2, Fgf9, Fgf18, Ngf, Pdgfa, Pdgfb, Tgfb1, Vegfa, Vegfc, Wnt4, Wnt5a, Wnt10a) were associated with secretory growth factors. Of these, expression of Fgf9, Fgf18, Vegfa and Vegfc was elevated in the L group, and Pdgfb and Tgfb1 was elevated in the S group. CONCLUSIONS Spheroid size may impact trophic factor expression. Our results will be useful for future studies assessing the utility of MSC spheroids for treating bone injury.
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Affiliation(s)
- Akiyoshi Kuroda
- Department of Orthopaedic Surgery, Kitasato University School of Medicine, Minami ku, Kitasato, Sagamihara, Kanagawa, Japan
| | - Ayumi Mineo
- Department of Medical Engineering and Technology, Kitasato University, Sagamihara, Kanagawa, Japan
| | - Shintaro Shoji
- Department of Orthopaedic Surgery, Kitasato University School of Medicine, Minami ku, Kitasato, Sagamihara, Kanagawa, Japan
| | - Gen Inoue
- Department of Orthopaedic Surgery, Kitasato University School of Medicine, Minami ku, Kitasato, Sagamihara, Kanagawa, Japan
| | - Wataru Saito
- Department of Orthopaedic Surgery, Kitasato University School of Medicine, Minami ku, Kitasato, Sagamihara, Kanagawa, Japan
| | - Hiroyuki Sekiguchi
- Shonan University of Medical Sciences Research Institute, Chigasaki, Kanagawa, Japan
| | - Masashi Takaso
- Department of Orthopaedic Surgery, Kitasato University School of Medicine, Minami ku, Kitasato, Sagamihara, Kanagawa, Japan
| | - Kentaro Uchida
- Department of Orthopaedic Surgery, Kitasato University School of Medicine, Minami ku, Kitasato, Sagamihara, Kanagawa, Japan.,Shonan University of Medical Sciences Research Institute, Chigasaki, Kanagawa, Japan
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6
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Tewari D, Priya A, Bishayee A, Bishayee A. Targeting transforming growth factor-β signalling for cancer prevention and intervention: Recent advances in developing small molecules of natural origin. Clin Transl Med 2022; 12:e795. [PMID: 35384373 PMCID: PMC8982327 DOI: 10.1002/ctm2.795] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Revised: 03/12/2022] [Accepted: 03/16/2022] [Indexed: 12/19/2022] Open
Abstract
Background Cancer is the world's second leading cause of death, but a significant advancement in cancer treatment has been achieved within the last few decades. However, major adverse effects and drug resistance associated with standard chemotherapy have led towards targeted treatment options. Objectives Transforming growth factor‐β (TGF‐β) signaling plays a key role in cell proliferation, differentiation, morphogenesis, regeneration, and tissue homeostasis. The prime objective of this review is to decipher the role of TGF‐β in oncogenesis and to evaluate the potential of various natural and synthetic agents to target this dysregulated pathway to confer cancer preventive and anticancer therapeutic effects. Methods Various authentic and scholarly databases were explored to search and obtain primary literature for this study. The Preferred Reporting Items for Systematic Reviews and Meta‐Analysis (PRISMA) criteria was followed for the review. Results Here we provide a comprehensive and critical review of recent advances on our understanding of the effect of various bioactive natural molecules on the TGF‐β signaling pathway to evaluate their full potential for cancer prevention and therapy. Conclusion Based on emerging evidence as presented in this work, TGF‐β‐targeting bioactive compounds from natural sources can serve as potential therapeutic agents for prevention and treatment of various human malignancies.
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Affiliation(s)
- Devesh Tewari
- Department of Pharmacognosy, School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab, India
| | - Anu Priya
- Department of Pharmacology, School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab, India
| | | | - Anupam Bishayee
- College of Osteopathic Medicine, Lake Erie College of Osteopathic Medicine, Bradenton, Florida, USA
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7
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Li Y, Zi Z. Optogenetic Control of TGF-β Signaling. Methods Mol Biol 2022; 2488:113-124. [PMID: 35347686 DOI: 10.1007/978-1-0716-2277-3_9] [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] [Indexed: 06/14/2023]
Abstract
Cells employ signaling pathways to make decisions in response to changes in their immediate environment. The Transforming Growth Factor β (TGF-β) signaling pathway plays pivotal roles in regulating many cellular processes, including cell proliferation, differentiation, and migrations. In order to manipulate and explore the dynamic behavior of TGF-β signaling at high spatiotemporal resolution, we developed an optogenetic system (the optoTGFBRs system), in which light is used to control TGF-β signaling precisely in time and space. Here, we describe about experimental details of how to build the optoTGFBRs system and utilize it to manipulate TGF-β signaling in a single cell or a cell population using microscope or LED array, respectively.
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Affiliation(s)
- Yuchao Li
- Max Planck Institute for Molecular Genetics, Otto Warburg Laboratory, Berlin, Germany
| | - Zhike Zi
- Department of Experimental Toxicology and ZEBET, German Federal Institute for Risk Assessment, Berlin, Germany.
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8
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WANG T, ZHANG D, SONG T, SUN M, ZHANG J. Advances in research of TGF-Β1 in human testis. FOOD SCIENCE AND TECHNOLOGY 2022. [DOI: 10.1590/fst.22521] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Tingting WANG
- Special Key Laboratory of Gene Detection and Therapy of Guizhou Province, China
| | - Dan ZHANG
- Zunyi Medical University Library, China
| | - Tao SONG
- Special Key Laboratory of Gene Detection and Therapy of Guizhou Province, China
| | - Mengdi SUN
- Special Key Laboratory of Gene Detection and Therapy of Guizhou Province, China
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9
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Refolding, purification, and characterization of constitutive-active human-Smad8 produced as inclusion bodies in ClearColi® BL21 (DE3). Protein Expr Purif 2021; 184:105878. [PMID: 33812004 DOI: 10.1016/j.pep.2021.105878] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 03/24/2021] [Accepted: 03/27/2021] [Indexed: 11/21/2022]
Abstract
Smad8 is a transcriptional regulator that participates in the intracellular signaling pathway of the transforming growth factor-β (TGF-β) family. Full-length Smad8 is an inactive protein in the absence of ligand stimulation. The expression of a truncated version of the protein lacking the MH1 domain (cSmad8) revealed constitutive activity in genetically engineered mesenchymal stem cells and, in combination with BMP-2, exhibited a tendon cell-inducing potential. To further explore function and applicability of Smad8 in regenerative medicine recombinant production is required. Herein, we further engineered cSmad8 to include the transactivation signal (TAT) of the human immunodeficiency virus (HIV) to allow internalization into cells. TAT-hcSmad8 was produced in endotoxin-free ClearColi® BL21 (DE3), refolded from inclusion bodies (IBs) and purified by Heparin chromatography. Analysis of TAT-hcSmad8 by thermal shift assay revealed the formation of a hydrophobic core. The presence of mixed α-helixes and β-sheets, in line with theoretical models, was proven by circular dichroism. TAT-hcSmad8 was successfully internalized by C3H10T1/2 cells, where it was mainly found in the cytoplasm and partially in the nucleus. Finally, it was shown that TAT-hcSmad8 exhibited biological activity in C3H10T1/2 cells after co-stimulation with BMP-2.
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10
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Bozhokin MS, Sopova YV, Kachkin DV, Rubel AA, Khotin MG. Mechanisms of TGFβ3 Action as a Therapeutic Agent for Promoting the Synthesis of Extracellular Matrix Proteins in Hyaline Cartilage. BIOCHEMISTRY (MOSCOW) 2020; 85:436-447. [PMID: 32569551 DOI: 10.1134/s0006297920040045] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Hyaline cartilage is a nonvascular connective tissue covering the joint surface. It consists mostly of the extracellular matrix proteins and a small number of highly differentiated chondrocytes. At present, various techniques for repairing joint surfaces damage, for example, the use of modified cell cultures and biodegradable scaffolds, are under investigation. Molecular mechanisms of cartilage tissue proliferation have been also actively studied in recent years. TGFβ3, which plays a critical role in the proliferation of normal cartilage tissue, is one of the most important protein among cytokines and growth factors affecting chondrogenesis. By interacting directly with receptors on the cell membrane surface, TGFβ3 triggers a cascade of molecular interactions involving transcription factor Sox9. In this review, we describe the effects of TGFβ3 on the receptor complex activation and subsequent intracellular trafficking of Smad proteins and analyze the relation between these processes and upregulation of expression of major extracellular matrix genes, such as col2a1 and acan.
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Affiliation(s)
- M S Bozhokin
- Vreden Russian Scientific Research Institute of Traumatology and Orthopedics, St. Petersburg, 195427, Russia. .,Institute of Cytology, Russian Academy of Science, St. Petersburg, 194064, Russia
| | - Y V Sopova
- Vavilov Institute of General Genetics, Russian Academy of Science, St. Petersburg Branch, St. Petersburg, 199034, Russia.,St. Petersburg State University, Faculty of Biology, St. Petersburg, 199034, Russia.,St. Petersburg State University, Laboratory of Amyloid Biology, St. Petersburg, 199034, Russia
| | - D V Kachkin
- St. Petersburg State University, Faculty of Biology, St. Petersburg, 199034, Russia.,St. Petersburg State University, Laboratory of Amyloid Biology, St. Petersburg, 199034, Russia
| | - A A Rubel
- St. Petersburg State University, Faculty of Biology, St. Petersburg, 199034, Russia.,St. Petersburg State University, Laboratory of Amyloid Biology, St. Petersburg, 199034, Russia
| | - M G Khotin
- Institute of Cytology, Russian Academy of Science, St. Petersburg, 194064, Russia
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11
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Wang H, Tang F, Bian E, Zhang Y, Ji X, Yang Z, Zhao B. IFITM3/STAT3 axis promotes glioma cells invasion and is modulated by TGF-β. Mol Biol Rep 2019; 47:433-441. [PMID: 31637620 DOI: 10.1007/s11033-019-05146-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Accepted: 10/16/2019] [Indexed: 12/22/2022]
Abstract
Glioma is the most aggressive primary brain tumor. We have previously provided evidence that IFITM3 promoted glioma cells migration. However, the mechanism of how IFITM3 regulates glioma cells invasion and whether IFITM3 participates in TGF-β-mediated glioma invasion are still unknown. In this paper, we proved that IFITM3 was notably up-regulated in glioma tissues. Knockdown of IFITM3 suppressed STAT3 phosphorylation in vitro, and a specific STAT3 inhibitor AG490 reversed IFITM3-induced invasion of glioma cells. Furthermore, IFITM3 expression was induced by TGF-β in glioma and IFITM3 knockdown abolished TGF-β-mediated glioma cells invasion. Collectively, the results indicate that IFITM3/STAT3 axis may promote TGF-β-induced glioma cells invasion. This study provided some suggestions for the clinical treatment of the brain tumor.
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Affiliation(s)
- Hongliang Wang
- Department of Neurosurgery, The Second Affiliated Hospital of Anhui Medical University, 678 Fu Rong Road, Hefei, 230601, Anhui, China.,Cerebral Vascular Disease Research Center, Anhui Medical University, 678 Fu Rong Road, Hefei, 230601, Anhui, China
| | - Feng Tang
- Department of Neurosurgery, The Second Affiliated Hospital of Anhui Medical University, 678 Fu Rong Road, Hefei, 230601, Anhui, China.,Cerebral Vascular Disease Research Center, Anhui Medical University, 678 Fu Rong Road, Hefei, 230601, Anhui, China
| | - Erbao Bian
- Department of Neurosurgery, The Second Affiliated Hospital of Anhui Medical University, 678 Fu Rong Road, Hefei, 230601, Anhui, China.,Cerebral Vascular Disease Research Center, Anhui Medical University, 678 Fu Rong Road, Hefei, 230601, Anhui, China
| | - Yile Zhang
- Department of Neurosurgery, The Second Affiliated Hospital of Anhui Medical University, 678 Fu Rong Road, Hefei, 230601, Anhui, China.,Cerebral Vascular Disease Research Center, Anhui Medical University, 678 Fu Rong Road, Hefei, 230601, Anhui, China
| | - Xinghu Ji
- Department of Neurosurgery, The Second Affiliated Hospital of Anhui Medical University, 678 Fu Rong Road, Hefei, 230601, Anhui, China.,Cerebral Vascular Disease Research Center, Anhui Medical University, 678 Fu Rong Road, Hefei, 230601, Anhui, China
| | - Zhihao Yang
- Department of Neurosurgery, The Second Affiliated Hospital of Anhui Medical University, 678 Fu Rong Road, Hefei, 230601, Anhui, China.,Cerebral Vascular Disease Research Center, Anhui Medical University, 678 Fu Rong Road, Hefei, 230601, Anhui, China
| | - Bing Zhao
- Department of Neurosurgery, The Second Affiliated Hospital of Anhui Medical University, 678 Fu Rong Road, Hefei, 230601, Anhui, China. .,Cerebral Vascular Disease Research Center, Anhui Medical University, 678 Fu Rong Road, Hefei, 230601, Anhui, China.
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12
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Gunnella F, Kunisch E, Horbert V, Maenz S, Bossert J, Jandt KD, Plöger F, Kinne RW. In Vitro Release of Bioactive Bone Morphogenetic Proteins (GDF5, BB-1, and BMP-2) from a PLGA Fiber-Reinforced, Brushite-Forming Calcium Phosphate Cement. Pharmaceutics 2019; 11:pharmaceutics11090455. [PMID: 31484306 PMCID: PMC6781330 DOI: 10.3390/pharmaceutics11090455] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 08/06/2019] [Accepted: 08/23/2019] [Indexed: 12/17/2022] Open
Abstract
Bone regeneration of sheep lumbar osteopenia is promoted by targeted delivery of bone morphogenetic proteins (BMPs) via a biodegradable, brushite-forming calcium-phosphate-cement (CPC) with stabilizing poly(l-lactide-co-glycolide) acid (PLGA) fibers. The present study sought to quantify the release and bioactivity of BMPs from a specific own CPC formulation successfully used in previous in vivo studies. CPC solid bodies with PLGA fibers (0%, 5%, 10%) containing increasing dosages of GDF5, BB-1, and BMP-2 (2 to 1000 µg/mL) were ground and extracted in phosphate-buffered saline (PBS) or pure sheep serum/cell culture medium containing 10% fetal calf serum (FCS; up to 30/31 days). Released BMPs were quantified by ELISA, bioactivity was determined via alkaline phosphatase (ALP) activity after 3-day exposure of different osteogenic cell lines (C2C12; C2C12BRlb with overexpressed BMP-receptor-1b; MCHT-1/26; ATDC-5) and via the influence of the extracts on the expression of osteogenic/chondrogenic genes and proteins in human adipose tissue-derived mesenchymal stem cells (hASCs). There was hardly any BMP release in PBS, whereas in medium + FCS or sheep serum the cumulative release over 30/31 days was 11-34% for GDF5 and 6-17% for BB-1; the release of BMP-2 over 14 days was 25.7%. Addition of 10% PLGA fibers significantly augmented the 14-day release of GDF5 and BMP-2 (to 22.6% and 43.7%, respectively), but not of BB-1 (13.2%). All BMPs proved to be bioactive, as demonstrated by increased ALP activity in several cell lines, with partial enhancement by 10% PLGA fibers, and by a specific, early regulation of osteogenic/chondrogenic genes and proteins in hASCs. Between 10% and 45% of bioactive BMPs were released in vitro from CPC + PLGA fibers over a time period of 14 days, providing a basis for estimating and tailoring therapeutically effective doses for experimental and human in vivo studies.
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Affiliation(s)
- Francesca Gunnella
- Experimental Rheumatology Unit, Department of Orthopedics, Jena University Hospital, Waldkrankenhaus "Rudolf Elle", Klosterlausnitzer Str. 81, 07607 Eisenberg, Germany
| | - Elke Kunisch
- Experimental Rheumatology Unit, Department of Orthopedics, Jena University Hospital, Waldkrankenhaus "Rudolf Elle", Klosterlausnitzer Str. 81, 07607 Eisenberg, Germany
| | - Victoria Horbert
- Experimental Rheumatology Unit, Department of Orthopedics, Jena University Hospital, Waldkrankenhaus "Rudolf Elle", Klosterlausnitzer Str. 81, 07607 Eisenberg, Germany
| | - Stefan Maenz
- Chair of Materials Science, Otto Schott Institute of Materials Research, Friedrich Schiller University Jena, 07743 Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, 07743 Jena, Germany
| | - Jörg Bossert
- Chair of Materials Science, Otto Schott Institute of Materials Research, Friedrich Schiller University Jena, 07743 Jena, Germany
| | - Klaus D Jandt
- Chair of Materials Science, Otto Schott Institute of Materials Research, Friedrich Schiller University Jena, 07743 Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, 07743 Jena, Germany
- Jena School for Microbial Communication (JSMC), Friedrich Schiller University Jena, 07743 Jena, Germany
| | | | - Raimund W Kinne
- Experimental Rheumatology Unit, Department of Orthopedics, Jena University Hospital, Waldkrankenhaus "Rudolf Elle", Klosterlausnitzer Str. 81, 07607 Eisenberg, Germany.
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Zi Z. Molecular Engineering of the TGF-β Signaling Pathway. J Mol Biol 2019; 431:2644-2654. [PMID: 31121181 DOI: 10.1016/j.jmb.2019.05.022] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 05/05/2019] [Accepted: 05/13/2019] [Indexed: 12/19/2022]
Abstract
Transforming growth factor beta (TGF-β) is an important growth factor that plays essential roles in regulating tissue development and homeostasis. Dysfunction of TGF-β signaling is a hallmark of many human diseases. Therefore, targeting TGF-β signaling presents broad therapeutic potential. Since the discovery of the TGF-β ligand, a collection of engineered signaling proteins have been developed to probe and manipulate TGF-β signaling responses. In this review, we highlight recent progress in the engineering of TGF-β signaling for different applications and discuss how molecular engineering approaches can advance our understanding of this important pathway. In addition, we provide a future outlook on the opportunities and challenges in the engineering of the TGF-β signaling pathway from a quantitative perspective.
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Affiliation(s)
- Zhike Zi
- Otto-Warburg Laboratory, Max Planck Institute for Molecular Genetics, 14195 Berlin, Germany.
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Lu W, Li X. Vascular stem/progenitor cells: functions and signaling pathways. Cell Mol Life Sci 2018; 75:859-869. [PMID: 28956069 PMCID: PMC11105279 DOI: 10.1007/s00018-017-2662-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 09/05/2017] [Accepted: 09/20/2017] [Indexed: 12/17/2022]
Abstract
Vascular stem/progenitor cells (VSCs) are an important source of all types of vascular cells needed to build, maintain, repair, and remodel blood vessels. VSCs, therefore, play critical roles in the development, normal physiology, and pathophysiology of numerous diseases. There are four major types of VSCs, including endothelial progenitor cells (EPCs), smooth muscle progenitor cells (SMPCs), pericytes, and mesenchymal stem cells (MSCs). VSCs can be found in bone marrow, circulating blood, vessel walls, and other extravascular tissues. During the past two decades, considerable progress has been achieved in the understanding of the derivation, surface markers, and differentiation of VSCs. Yet, the mechanisms regulating their functions and maintenance under normal and pathological conditions, such as in eye diseases, remain to be further elucidated. Owing to the essential roles of blood vessels in human tissues and organs, understanding the functional properties and the underlying molecular basis of VSCs is of critical importance for both basic and translational research.
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Affiliation(s)
- Weisi Lu
- The State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, 510060, People's Republic of China
| | - Xuri Li
- The State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, 510060, People's Republic of China.
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15
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Li Y, Lee M, Kim N, Wu G, Deng D, Kim JM, Liu X, Heo WD, Zi Z. Spatiotemporal Control of TGF-β Signaling with Light. ACS Synth Biol 2018; 7:443-451. [PMID: 29241005 DOI: 10.1021/acssynbio.7b00225] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Cells employ signaling pathways to make decisions in response to changes in their immediate environment. Transforming growth factor beta (TGF-β) is an important growth factor that regulates many cellular functions in development and disease. Although the molecular mechanisms of TGF-β signaling have been well studied, our understanding of this pathway is limited by the lack of tools that allow the control of TGF-β signaling with high spatiotemporal resolution. Here, we developed an optogenetic system (optoTGFBRs) that enables the precise control of TGF-β signaling in time and space. Using the optoTGFBRs system, we show that TGF-β signaling can be selectively and sequentially activated in single cells through the modulation of the pattern of light stimulations. By simultaneously monitoring the subcellular localization of TGF-β receptor and Smad2 proteins, we characterized the dynamics of TGF-β signaling in response to different patterns of blue light stimulations. The spatial and temporal precision of light control will make the optoTGFBRs system as a powerful tool for quantitative analyses of TGF-β signaling at the single cell level.
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Affiliation(s)
- Yuchao Li
- Otto-Warburg
Laboratory, Max Planck Institute for Molecular Genetics, Berlin 14195, Germany
| | - Minji Lee
- Department
of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Nury Kim
- Center
for Cognition and Sociality, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
| | - Guoyu Wu
- Otto-Warburg
Laboratory, Max Planck Institute for Molecular Genetics, Berlin 14195, Germany
| | - Difan Deng
- Otto-Warburg
Laboratory, Max Planck Institute for Molecular Genetics, Berlin 14195, Germany
| | - Jin Man Kim
- Department
of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Xuedong Liu
- Department
of Chemistry and Biochemistry, University of Colorado Boulder, Boulder, Colorado 80309-0596, United States
| | - Won Do Heo
- Department
of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
- Center
for Cognition and Sociality, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
- KAIST
Institute for the BioCentury, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Zhike Zi
- Otto-Warburg
Laboratory, Max Planck Institute for Molecular Genetics, Berlin 14195, Germany
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GDF5 significantly augments the bone formation induced by an injectable, PLGA fiber-reinforced, brushite-forming cement in a sheep defect model of lumbar osteopenia. Spine J 2017. [PMID: 28642196 DOI: 10.1016/j.spinee.2017.06.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
BACKGROUND CONTEXT Biodegradable calcium phosphate cement (CPC) represents a promising option for the surgical treatment of osteoporotic vertebral fractures. Because of augmented local bone catabolism, however, additional targeted delivery of bone morphogenetic proteins with the CPC may be needed to promote rapid and complete bone regeneration. PURPOSE In the present study, an injectable, poly(l-lactide-co-glycolide) acid (PLGA) fiber-reinforced, brushite-forming cement (CPC) containing the bone morphogenetic protein GDF5 was tested in a sheep lumbar osteopenia model. STUDY DESIGN/SETTING This is a prospective experimental animal study. METHODS Defined bone defects (diameter 5 mm) were placed in aged, osteopenic female sheep. Defects were treated with fiber-reinforced CPC alone (L4; CPC+fibers) or with CPC containing different dosages of GDF5 (L5; CPC+fibers+GDF5; 1, 5, 100, and 500 µg GDF5; n=5 or 6 each). The results were compared with those of untouched controls (L1). Three and 9 months postoperation, structural and functional effects of the CPC (±GDF5) were assessed ex vivo by measuring (1) bone mineral density (BMD); (2) bone structure, that is, bone volume/total volume (assessed by micro-computed tomography and histomorphometry), trabecular thickness, and trabecular number; (3) bone formation, that is, osteoid volume/bone volume, osteoid surface/bone surface, osteoid thickness, mineralized surface/bone surface, mineral apposition rate, and bone formation rate/bone surface; (4) bone resorption, that is, eroded surface/bone surface; and (5) compressive strength. RESULTS Compared with untouched controls (L1), both CPC+fibers (L4) and CPC+fibers+GDF5 (L5) numerically or significantly improved all parameters of bone formation, bone resorption, and bone structure. These significant effects were observed both at 3 and 9 months, but for some parameters they were less pronounced at 9 months. Compared with CPC without GDF5, additional significant effects of CPC with GDF5 were demonstrated for BMD and parameters of bone formation and structure (bone volume/total volume, trabecular thickness, and trabecular number, as well as mineralized surface/bone surface). The GDF5 effects were dose-dependent (predominantly in the 5-100 µg range) at 3 and 9 months. CONCLUSIONS GDF5 significantly enhanced the bone formation induced by a PLGA fiber-reinforced CPC in sheep lumbar osteopenia. The results indicated that a local dose as low as ≤100 µg GDF5 may be sufficient to augment middle to long-term bone formation. The novel CPC+GDF5 combination may thus qualify as an alternative to the bioinert, supraphysiologically stiff poly(methyl methacrylate) cement currently applied for vertebroplasty/kyphoplasty of osteoporotic vertebral fractures.
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Gunnella F, Kunisch E, Bungartz M, Maenz S, Horbert V, Xin L, Mika J, Borowski J, Bischoff S, Schubert H, Hortschansky P, Sachse A, Illerhaus B, Günster J, Bossert J, Jandt KD, Plöger F, Kinne RW, Brinkmann O. Low-dose BMP-2 is sufficient to enhance the bone formation induced by an injectable, PLGA fiber-reinforced, brushite-forming cement in a sheep defect model of lumbar osteopenia. Spine J 2017; 17:1699-1711. [PMID: 28619686 DOI: 10.1016/j.spinee.2017.06.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Revised: 05/23/2017] [Accepted: 06/08/2017] [Indexed: 02/03/2023]
Abstract
BACKGROUND CONTEXT Bioresorbable calcium phosphate cement (CPC) may be suitable for vertebroplasty/kyphoplasty of osteoporotic vertebral fractures. However, additional targeted delivery of osteoinductive bone morphogenetic proteins (BMPs) in the CPC may be required to counteract the augmented local bone catabolism and support complete bone regeneration. PURPOSE This study aimed at testing an injectable, poly (l-lactide-co-glycolide) acid (PLGA) fiber-reinforced, brushite-forming cement (CPC) containing low-dose bone morphogenetic protein BMP-2 in a sheep lumbar osteopenia model. STUDY DESIGN/ SETTING This is a prospective experimental animal study. METHODS Bone defects (diameter 5 mm) were generated in aged, osteopenic female sheep and filled with fiber-reinforced CPC alone (L4; CPC+fibers) or with CPC containing different dosages of BMP-2 (L5; CPC+fibers+BMP-2; 1, 5, 100, and 500 µg BMP-2; n=5 or 6 each). The results were compared with those of untouched controls (L1). Three and 9 months after the operation, structural and functional effects of the CPC (±BMP-2) were analyzed ex vivo by measuring (1) bone mineral density (BMD); (2) bone structure, that is, bone volume/total volume (assessed by micro-computed tomography [micro-CT] and histomorphometry), trabecular thickness, and trabecular number; (3) bone formation, that is, osteoid volume/bone volume, osteoid surface/bone surface, osteoid thickness, mineralizing surface/bone surface, mineral apposition rate, and bone formation rate/bone surface; (4) bone resorption, that is, eroded surface/bone surface; and (5) compressive strength. RESULTS Compared with untouched controls (L1), CPC+fibers (L4) and/or CPC+fibers+BMP-2 (L5) significantly improved all parameters of bone formation, bone resorption, and bone structure. These effects were observed at 3 and 9 months, but were less pronounced for some parameters at 9 months. Compared with CPC without BMP-2, additional significant effects of BMP-2 were demonstrated for bone structure (bone volume/total volume, trabecular thickness, trabecular number) and formation (osteoid surface/bone surface and mineralizing surface/bone surface), as well as for the compressive strength. The BMP-2 effects on bone formation at 3 and 9 months were dose-dependent, with 5-100 µg as the optimal dosage. CONCLUSIONS BMP-2 significantly enhanced the bone formation induced by a PLGA fiber-reinforced CPC in sheep lumbar osteopenia. A single local dose as low as ≤100 µg BMP-2 was sufficient to augment middle to long-term bone formation. The novel CPC+BMP-2 may thus represent an alternative to the bioinert, supraphysiologically stiff polymethylmethacrylate cement presently used to treat osteoporotic vertebral fractures by vertebroplasty/kyphoplasty.
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Affiliation(s)
- Francesca Gunnella
- Experimental Rheumatology Unit, Department of Orthopedics, Jena University Hospital, Waldkrankenhaus "Rudolf Elle", Klosterlausnitzer Str. 81, 07607 Eisenberg, Germany
| | - Elke Kunisch
- Experimental Rheumatology Unit, Department of Orthopedics, Jena University Hospital, Waldkrankenhaus "Rudolf Elle", Klosterlausnitzer Str. 81, 07607 Eisenberg, Germany
| | - Matthias Bungartz
- Experimental Rheumatology Unit, Department of Orthopedics, Jena University Hospital, Waldkrankenhaus "Rudolf Elle", Klosterlausnitzer Str. 81, 07607 Eisenberg, Germany; Chair of Orthopedics, Department of Orthopedics, Jena University Hospital, Waldkrankenhaus "Rudolf Elle", Klosterlausnitzer Str. 81, 07607 Eisenberg, Germany
| | - Stefan Maenz
- Chair of Materials Science, Otto Schott Institute of Materials Research, Friedrich Schiller University Jena, Löbdergraben 32, 07743 Jena, Germany; Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany
| | - Victoria Horbert
- Experimental Rheumatology Unit, Department of Orthopedics, Jena University Hospital, Waldkrankenhaus "Rudolf Elle", Klosterlausnitzer Str. 81, 07607 Eisenberg, Germany
| | - Long Xin
- Experimental Rheumatology Unit, Department of Orthopedics, Jena University Hospital, Waldkrankenhaus "Rudolf Elle", Klosterlausnitzer Str. 81, 07607 Eisenberg, Germany
| | - Joerg Mika
- Experimental Rheumatology Unit, Department of Orthopedics, Jena University Hospital, Waldkrankenhaus "Rudolf Elle", Klosterlausnitzer Str. 81, 07607 Eisenberg, Germany
| | - Juliane Borowski
- Experimental Rheumatology Unit, Department of Orthopedics, Jena University Hospital, Waldkrankenhaus "Rudolf Elle", Klosterlausnitzer Str. 81, 07607 Eisenberg, Germany
| | - Sabine Bischoff
- Institute of Laboratory Animal Sciences and Welfare, Jena University Hospital, Dornburger Straße 23, 07743 Jena, Germany
| | - Harald Schubert
- Institute of Laboratory Animal Sciences and Welfare, Jena University Hospital, Dornburger Straße 23, 07743 Jena, Germany
| | - Peter Hortschansky
- Leibniz-Institute for Natural Products Research and Infection Biology - Hans-Knoell-Institute, Beutenbergstr. 11a, 07745 Jena, Germany
| | - Andre Sachse
- Chair of Orthopedics, Department of Orthopedics, Jena University Hospital, Waldkrankenhaus "Rudolf Elle", Klosterlausnitzer Str. 81, 07607 Eisenberg, Germany
| | - Bernhard Illerhaus
- Institute of Laboratory Animal Sciences and Welfare, Jena University Hospital, Dornburger Straße 23, 07743 Jena, Germany
| | - Jens Günster
- BAM Bundesanstalt für Materialforschung und -prüfung (BAM), Unter den Eichen 44-46, 12203 Berlin; Germany
| | - Jörg Bossert
- Chair of Materials Science, Otto Schott Institute of Materials Research, Friedrich Schiller University Jena, Löbdergraben 32, 07743 Jena, Germany
| | - Klaus D Jandt
- Chair of Materials Science, Otto Schott Institute of Materials Research, Friedrich Schiller University Jena, Löbdergraben 32, 07743 Jena, Germany; Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany; Jena School for Microbial Communication (JSMC), Friedrich Schiller University Jena, Neugasse 23, 07743 Jena, Germany
| | - Frank Plöger
- BIOPHARM GmbH, Handelsstrasse 15, 69214 Eppelheim, Germany
| | - Raimund W Kinne
- Experimental Rheumatology Unit, Department of Orthopedics, Jena University Hospital, Waldkrankenhaus "Rudolf Elle", Klosterlausnitzer Str. 81, 07607 Eisenberg, Germany.
| | - Olaf Brinkmann
- Experimental Rheumatology Unit, Department of Orthopedics, Jena University Hospital, Waldkrankenhaus "Rudolf Elle", Klosterlausnitzer Str. 81, 07607 Eisenberg, Germany; Chair of Orthopedics, Department of Orthopedics, Jena University Hospital, Waldkrankenhaus "Rudolf Elle", Klosterlausnitzer Str. 81, 07607 Eisenberg, Germany
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Hu T, Sprague ER, Fodor M, Stams T, Clark KL, Cowan-Jacob SW. The impact of structural biology in medicine illustrated with four case studies. J Mol Med (Berl) 2017; 96:9-19. [PMID: 28669027 DOI: 10.1007/s00109-017-1565-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Revised: 06/12/2017] [Accepted: 06/15/2017] [Indexed: 12/18/2022]
Abstract
The contributions of structural biology to drug discovery have expanded over the last 20 years from structure-based ligand optimization to a broad range of clinically relevant topics including the understanding of disease, target discovery, screening for new types of ligands, discovery of new modes of action, addressing clinical challenges such as side effects or resistance, and providing data to support drug registration. This expansion of scope is due to breakthroughs in the technology, which allow structural information to be obtained rapidly and for more complex molecular systems, but also due to the combination of different technologies such as X-ray, NMR, and other biophysical methods, which allows one to get a more complete molecular understanding of disease and ways to treat it. In this review, we provide examples of the types of impact molecular structure information can have in the clinic for both low molecular weight and biologic drug discovery and describe several case studies from our own work to illustrate some of these contributions.
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Affiliation(s)
- Tiancen Hu
- Novartis Institutes for Biomedical Research, Cambridge, MA, 02139, USA
| | | | - Michelle Fodor
- Novartis Institutes for Biomedical Research, Cambridge, MA, 02139, USA
| | - Travis Stams
- Novartis Institutes for Biomedical Research, Cambridge, MA, 02139, USA
| | - Kirk L Clark
- Novartis Institutes for Biomedical Research, Cambridge, MA, 02139, USA
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Partial inhibition of activin receptor-like kinase 4 attenuates pressure overload-induced cardiac fibrosis and improves cardiac function. J Hypertens 2016; 34:1766-77. [DOI: 10.1097/hjh.0000000000001020] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Cifuentes-Mendiola S, Pérez-Martínez I, Muñoz-Saavedra Á, Torres-Contreras J, García-Hernández A. Clinical applications of molecular basis for Craniosynostosis. A narrative review. JOURNAL OF ORAL RESEARCH 2016. [DOI: 10.17126/joralres.2016.027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
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Activin A/BMP2 chimera AB235 drives efficient redifferentiation of long term cultured autologous chondrocytes. Sci Rep 2015; 5:16400. [PMID: 26563344 PMCID: PMC4643338 DOI: 10.1038/srep16400] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Accepted: 10/12/2015] [Indexed: 11/08/2022] Open
Abstract
Autologous chondrocyte implantation (ACI) depends on the quality and quantity of implanted cells and is hindered by the fact that chondrocytes cultured for long periods of time undergo dedifferentiation. Here we have developed a reproducible and efficient chondrogenic protocol to redifferentiate chondrocytes isolated from osteoarthritis (OA) patients. We used morphological, histological and immunological analysis together with a RT-PCR detection of collagen I and collagen II gene expression to show that chondrocytes isolated from articular cartilage biopsies of patients and subjected to long-term culture undergo dedifferentiation and that these cells can be redifferentiated following treatment with the chimeric Activin A/BMP2 ligand AB235. Examination of AB235-treated cell pellets in both in vitro and in vivo experiments revealed that redifferentiated chondrocytes synthesized a cartilage-specific extracellular matrix (ECM), primarily consisting of vertically-orientated collagen fibres and cartilage-specific proteoglycans. AB235-treated cell pellets also integrated into the surrounding subcutaneous tissue following transplantation in mice as demonstrated by their dramatic increase in size while non-treated control pellets disintegrated upon transplantation. Thus, our findings describe an effective protocol for the promotion of redifferentiation of autologous chondrocytes obtained from OA patients and the formation of a cartilage-like ECM that can integrate into the surrounding tissue in vivo.
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