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Wu X, Jia Y, Sun X, Wang J. Acceleration of pelvic tissue generation by overexpression of basic fibroblast growth factor in stem cells. Connect Tissue Res 2022; 63:256-268. [PMID: 33627007 DOI: 10.1080/03008207.2021.1895130] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
BACKGROUND Pelvic organ prolapse (POP) is a common debilitating condition affecting approximately 30-40% of women. The FDA issued a warning about polypropylene mesh used for pelvic floor repair due to erosion, exposure and other complications and banned it in 2019. The application of stem cell therapy and growth factors has strongly promoted the development of pelvic tissue engineering. PURPOSE we intend to address the issues of direct application of growth factors, the side effects of long-term exogenous treatment, and the directional differentiation of stem cells. Methods: we evaluated the paracrine effects and directional differentiation of adipose mesenchymal stem cells through stable overexpression of basic fibroblast growth factor (bFGF). RESULTS we found that the modified stem cells could continuously and stably release bFGF in the initial stage and could spontaneously differentiate into fibroblasts with a high differentiation efficiency in the later stage. CONCLUSION following ADSCs are designed to continuously release controllable levels of growth factors during the control period of repair, taking advantage of the paracrine function of stem cells to accelerate cell growth and extracellular matrix (ECM) reconstruction during the early stage of stem cell implantation, and then stem cells are differentiated into target tissues-fibroblasts to accelerate the reconstruction of pelvic floor tissues, this study demonstrated the strong therapeutic potential of this approach for pelvic tissue engineering. ABBREVIATIONS POP: Pelvic organ prolapse; ADSCs: Adipose-derived stem cells; bFGF: Basic fibroblast growth factor; BMSCs: Bone marrow-derived mesenchymal stem cells; HUVECs: Human umbilical vein endothelial cells; EMSCs: Endometrial mesenchymal stem cells; VEGF: Vascular endothelial growth factor; PDGF: Platelet-derived growth factor ECM: Extracellular matrix; IGF: Insulin-like growth factor; HGF: Hepatocyte growth factor; EGF: Epidermal growth factor; BMP-2: Bone morphogenetic protein 2; FBR: Foreign body reaction.
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Affiliation(s)
- Xiaotong Wu
- Department of Obstetrics and Gynecology, Peking University People's Hospital, Beijing, China.,Beijing Key Laboratory of Female Pelvic Floor Disorders, Beijing, China
| | - Yuanyuan Jia
- Department of Obstetrics and Gynecology, Peking University People's Hospital, Beijing, China.,Beijing Key Laboratory of Female Pelvic Floor Disorders, Beijing, China
| | - Xiuli Sun
- Department of Obstetrics and Gynecology, Peking University People's Hospital, Beijing, China.,Beijing Key Laboratory of Female Pelvic Floor Disorders, Beijing, China
| | - Jianliu Wang
- Department of Obstetrics and Gynecology, Peking University People's Hospital, Beijing, China.,Beijing Key Laboratory of Female Pelvic Floor Disorders, Beijing, China
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In Vitro Evaluation of a Novel Osteo-Inductive Scaffold for Osteogenic Differentiation of Bone-Marrow Mesenchymal Stem Cells. J Craniofac Surg 2020; 31:577-582. [PMID: 31895856 DOI: 10.1097/scs.0000000000006133] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Demineralized bone matrices (DBMs) were demonstrated to be a promising candidate for bone regeneration by previous studies. However, the limited osteoinductivity of DBMs was insufficient for a better repairing of bone defect. Osteoblasts (OBs), the major cellular component of bone tissues, play an important role in the formation of new bone. The extracellular matrix (ECM) of OB is one of the main components of bone formation niche. OBJECTIVE To combine the DBMs with the ECM of OBs to construct a novel scaffold that could be used for bone reconstruction. METHODS In this study, OBs were cultured on the surface of DBMs for 10 days and removed by Triton X-100 and ammonium hydroxide to prepare the OBs-ECM-DBMs (OEDBMs). A series of material features such as residues of OBs and ECM, cytotoxity, and osteoinductive capability of OEDBMs were evaluated. RESULTS Low cell residues and low content of DNA were observed in OEDBMs. Compared with DBMs, OEDBMs possessed more bone tissues organic matrix proteins, such as osteocalcin, osteopontin, and collagen I. Rat bone marrow mesenchymal stem cells (rBMSCs) presented a good viability when cultured on both 2 materials. The significant upregulations of osteogenic genes and proteins of rBMSCs were observed in OEDBMs group compared with DBMs group. CONCLUSION Taken together, these findings suggested that the OB-secreted ECM may be qualified as an ideal modification method for enhancing the performance of engineered bone scaffold.
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Nakamura S, Ito T, Okamoto K, Mima T, Uchida K, Siddiqui YD, Ito M, Tai M, Okubo K, Yamashiro K, Omori K, Yamamoto T, Matsushita O, Takashiba S. Acceleration of bone regeneration of horizontal bone defect in rats using collagen-binding basic fibroblast growth factor combined with collagen scaffolds. J Periodontol 2019; 90:1043-1052. [PMID: 30889294 PMCID: PMC6850180 DOI: 10.1002/jper.18-0674] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Revised: 12/28/2018] [Accepted: 01/30/2019] [Indexed: 12/11/2022]
Abstract
Background Basic fibroblast growth factor (bFGF) has been applied for periodontal regeneration. However, the application depends on bone defect morphology because bFGF diffuses rapidly from defect sites. In a previous study, collagen‐binding bFGF (CB‐bFGF) has been shown to enhance bone formation by collagen‐anchoring in the orthopedic field. The aim of this study is to demonstrate the efficacy of CB‐bFGF with collagen scaffolds in bone regeneration of horizontal bone defect. Methods Cell proliferation activity and collagen binding activity of CB‐bFGF was confirmed by WST‐8 assay and collagen binding assay, respectively. The retention of CB‐bFGF in the collagen sheet (CS) was measured by fluorescence imaging. The rat horizontal alveolar bone defect model was employed to investigate the efficacy of CB‐bFGF with collagen powder (CP). After 4 and 8 weeks, the regenerative efficacy was evaluated by microcomputed tomography, histological, and immunohistochemical analyses. Results CB‐bFGF had a comparable proliferation activity to bFGF and a collagen binding activity. CB‐bFGF was retained in CS longer than bFGF. At 8 weeks postoperation, bone volume, bone mineral content, and new bone area in CB‐bFGF/CP group were significantly increased compared with those in other groups. Furthermore, epithelial downgrowth was significantly suppressed in CB‐bFGF/CP group. At 4 weeks, the numbers of osteocalcin, proliferating cell nuclear antigen, and osteopontin‐positive cells at the regeneration site in CB‐bFGF/CP group were greater than those in other groups. Conclusions CB‐bFGF/CP effectively promoted bone regeneration of horizontal bone defect possibly by sustained release of bFGF. The potential of CB‐bFGF composite material for improved periodontal regeneration in vertical axis was shown.
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Affiliation(s)
- Shin Nakamura
- Department of Pathophysiology-Periodontal Science, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine, Okayama, Japan
| | - Takashi Ito
- Department of Pathophysiology-Periodontal Science, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine, Okayama, Japan.,Ministry of Health, Labour and Welfare Medical Politics Economic Section, Medical Equipment Policy Office, Tokyo, Japan
| | - Kentaro Okamoto
- Department of Pathophysiology-Periodontal Science, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine, Okayama, Japan
| | - Takehiko Mima
- Department of Bacteriology, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine, Okayama, Japan
| | - Kentaro Uchida
- Department of Orthopedic Surgery, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan
| | - Yasir D Siddiqui
- Department of Pathophysiology-Periodontal Science, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine, Okayama, Japan
| | - Masahiro Ito
- Department of Pathophysiology-Periodontal Science, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine, Okayama, Japan
| | - Masako Tai
- Department of Pathophysiology-Periodontal Science, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine, Okayama, Japan
| | - Keisuke Okubo
- Department of Pathophysiology-Periodontal Science, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine, Okayama, Japan
| | - Keisuke Yamashiro
- Department of Pathophysiology-Periodontal Science, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine, Okayama, Japan
| | - Kazuhiro Omori
- Department of Periodontics and Endodontics, Okayama University Hospital, Okayama, Japan
| | - Tadashi Yamamoto
- Department of Periodontics and Endodontics, Okayama University Hospital, Okayama, Japan
| | - Osamu Matsushita
- Department of Bacteriology, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine, Okayama, Japan
| | - Shogo Takashiba
- Department of Pathophysiology-Periodontal Science, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine, Okayama, Japan
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Caviness P, Bauer R, Tanaka K, Janowska K, Roeser JR, Harter D, Sanders J, Ruth C, Matsushita O, Sakon J. Ca 2+ -induced orientation of tandem collagen binding domains from clostridial collagenase ColG permits two opposing functions of collagen fibril formation and retardation. FEBS J 2018; 285:3254-3269. [PMID: 30035850 DOI: 10.1111/febs.14611] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Revised: 06/24/2018] [Accepted: 07/20/2018] [Indexed: 12/29/2022]
Abstract
To penetrate host tissues, histotoxic clostridia secrete virulence factors including enzymes to hydrolyze extracellular matrix. Clostridium histolyticum, recently renamed as Hathewaya histolytica, produces two classes of collagenase (ColG and ColH). The high-speed AFM study showed that ColG collagenase moves unidirectionally to plane collagen fibril and rebundles fibril when stalled . The structural explanation of the roles for the tandem collagen-binding segment (CBDs) is illuminated by its calcium-bound crystal structure at 1.9 Å resolution (Rwork = 15.0%; Rfree = 19.6%). Activation may involve calcium-dependent domain rearrangement supported by both small-angle X-ray scattering and size exclusion chromatography. At pCa ≥ 5 (pCa = -log[Ca2+ ]), the tandem CBD adopts an extended conformation that may facilitate secretion from the bacterium. At pCa ≤ 4, the compact structure seen in the crystal structure is adopted. This arrangement positions the two binding surfaces ~ 55 Å apart, and possibly ushers ColG along tropocollagen molecules that allow for unidirectional movement. A sequential binding mode where tighter binding CBD2 binds first could aid in processivity as well. Switch from processive collagenolysis to fibril rearrangement could be concentration dependent. Collagen fibril formation is retarded at 1 : 1 molar ratio of tandem CBD to collagen. Tandem CBD may help isolate a tropocollagen molecule from a fibril at this ratio. At 0.1 : 1 to 0.5 : 1 molar ratios fibril self-assembly was accelerated. Gain of function as a result of gene duplication of CBD for the M9B enzymes is speculated. The binding and activation modes described here will aid in drug delivery design. ACCESSION CODES The full atomic coordinates of the tandem CBD and its corresponding structure factor amplitudes have been deposited in the Protein Data Bank (PDB accession code 5IKU). Small-angle X-ray scattering data and corresponding ab initio models have been submitted to the Small Angle Scattering Biological Data Bank (SASBDB). Accession codes CL2, collagenase module 2, CN2, CP2 are assigned to envelopes for tandem CBD at -log[Ca2+ ] (pCa) 3, 4, 5, and 6, respectively. Accession code DC64 was assigned to the complex of polycystic kidney disease-CBD1-CBD2 with mini-collagen.
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Affiliation(s)
- Perry Caviness
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, AR, USA
| | - Ryan Bauer
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, AR, USA
| | - Keisuke Tanaka
- Nippi Research Institute of Biomatrix, Toride, Ibaraki, Japan
| | - Katarzyna Janowska
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, AR, USA
| | | | - Dawn Harter
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, AR, USA
| | - Jes Sanders
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, AR, USA
| | - Christopher Ruth
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, AR, USA
| | - Osamu Matsushita
- Department of Bacteriology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Japan
| | - Joshua Sakon
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, AR, USA
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Basic Fibroblast Growth Factor Fused with Tandem Collagen-Binding Domains from Clostridium histolyticum Collagenase ColG Increases Bone Formation. BIOMED RESEARCH INTERNATIONAL 2018; 2018:8393194. [PMID: 29770338 PMCID: PMC5889866 DOI: 10.1155/2018/8393194] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Accepted: 02/19/2018] [Indexed: 11/17/2022]
Abstract
Basic fibroblast growth factor 2 (bFGF) accelerates bone formation during fracture healing. Because the efficacy of bFGF decreases rapidly following its diffusion from fracture sites, however, repeated dosing is required to ensure a sustained therapeutic effect. We previously developed a fusion protein comprising bFGF, a polycystic kidney disease domain (PKD; s2b), and collagen-binding domain (CBD; s3) sourced from the Clostridium histolyticum class II collagenase, ColH, and reported that the combination of this fusion protein with a collagen-like peptide, poly(Pro-Hyp-Gly)10, induced mesenchymal cell proliferation and callus formation at fracture sites. In addition, C. histolyticum produces class I collagenase (ColG) with tandem CBDs (s3a and s3b) at the C-terminus. We therefore hypothesized that a bFGF fusion protein containing ColG-derived tandem CBDs (s3a and s3b) would show enhanced collagen-binding activity, leading to improved bone formation. Here, we examined the binding affinity of four collagen anchors derived from the two clostridial collagenases to H-Gly-Pro-Arg-Gly-(Pro-Hyp-Gly)12-NH2, a collagenous peptide, by surface plasmon resonance and found that tandem CBDs (s3a-s3b) have the highest affinity for the collagenous peptide. We also constructed four fusion proteins consisting of bFGF and s3 (bFGF-s3), s2b-s3b (bFGF-s2b-s3), s3b (bFGF-s3b), and s3a-s3b (bFGF-s3a-s3b) and compared their biological activities to those of a previous fusion construct (bFGF-s2b-s3) using a cell proliferation assay in vitro and a mouse femoral fracture model in vivo. Among these CB-bFGFs, bFGF-s3a-s3b showed the highest capacity to induce mesenchymal cell proliferation and callus formation in the mice fracture model. The poly(Pro-Hyp-Gly)10/bFGF-s3a-s3b construct may therefore have the potential to promote bone formation in clinical settings.
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Effect of Freeze-Dried Allograft Bone With Human Basic Fibroblast Growth Factor Containing a Collagen-Binding Domain From Clostridium histolyticum Collagenase on Bone Formation After Lumbar Posterolateral Fusion Surgery in Rats. Spine (Phila Pa 1976) 2017; 42:E995-E1001. [PMID: 28098745 DOI: 10.1097/brs.0000000000002074] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
STUDY DESIGN An experimental study. OBJECTIVE To evaluate the effectiveness of freeze-dried bone allograft (FDBA) with basic fibroblast growth factor (bFGF) fused with the polycystic kidney disease domain (PKD) and the collagen-binding domain (CBD) of Clostridium histolyticum collagenase, for the acceleration of lumbar posterolateral fusion in rats. SUMMARY OF BACKGROUND DATA Reports indicate bFGF is an effective growth factor with osteogenic potential for promoting bone regeneration, although its efficiency decreases rapidly following its diffusion in body fluid from the host site. We developed a bFGF fusion protein containing the PKD and the CBD of C histolyticum collagenase (bFGF-PKD-CBD), which markedly enhanced bone formation at a relatively low concentration when applied to the surface of rat femurs in a previous study. The potential of this novel protein to accelerate bone fusion in a rat model of lumbar posterolateral fusion has yet to be investigated. METHODS Bilateral L4-L5 posterolateral fusions were performed, using 150 mg of FDBA powder per side. A total of 20 male Sprague-Dawley rats weighing 200 to 250 g/each were divided into two groups of 10 rats: FDBA was incubated with either phosphate-buffered saline (control group) or 0.58 nmol bFGF-PKD-CBD (bFGF-PKD-CBD group) before fusion surgery. The effect of bFGF-PKD-CBD was estimated using radiographs, microcomputed tomography, and histology (hematoxylin-eosin and von Kossa staining). RESULTS Both grafted bone volume in the posterolateral lesion and the volume of new bone formation on the surface of laminae and spinal processes were significantly higher in the bFGF-PKD-CBD group than in the control group. Histologically, new bone formation and surrounding chondrocytes and fibroblasts were prominent in the bFGF-PKD-CBD group. CONCLUSION FDBA infused with bFGF-PKD-CBD may be a promising material for accelerating spinal fusion, and the FDBA-based delivery system for localizing bFGF-PKD-CBD may offer novel therapeutic approaches to augment spinal fusion. LEVEL OF EVIDENCE N/A.
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Zhang H, Kot A, Lay YAE, Fierro FA, Chen H, Lane NE, Yao W. Acceleration of Fracture Healing by Overexpression of Basic Fibroblast Growth Factor in the Mesenchymal Stromal Cells. Stem Cells Transl Med 2017; 6:1880-1893. [PMID: 28792122 PMCID: PMC6430058 DOI: 10.1002/sctm.17-0039] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Accepted: 06/20/2017] [Indexed: 12/29/2022] Open
Abstract
In this study, we engineered mesenchymal stem cells (MSCs) to over‐express basic fibroblast growth factor (bFGF) and evaluated its effects on fracture healing. Adipose‐derived mouse MSCs were transduced to express bFGF and green fluorescence protein (ADSCbFGF‐GFP). Closed‐femoral fractures were performed with osterix‐mCherry reporter mice of both sexes. The mice received 3 × 105 ADSCs transfected with control vector or bFGF via intramuscular injection within or around the fracture sites. Mice were euthanized at days 7, 14, and 35 to monitor MSC engraftment, osteogenic differentiation, callus formation, and bone strength. Compared to ADSC culture alone, ADSCbFGF increased bFGF expression and higher levels of bFGF and vascular endothelial growth factor (VEGF) in the culture supernatant for up to 14 days. ADSCbFGF treatment increased GFP‐labeled MSCs at the fracture gaps and these cells were incorporated into the newly formed callus. quantitative reverse transcription polymerase chain reaction (qRT‐PCR) from the callus revealed a 2‐ to 12‐fold increase in the expression of genes associated with nervous system regeneration, angiogenesis, and matrix formation. Compared to the control, ADSCbFGF treatment increased VEGF expression at the periosteal region of the callus, remodeling of collagen into mineralized callus and bone strength. In summary, MSCbFGF accelerated fracture healing by increasing the production of growth factors that stimulated angiogenesis and differentiation of MSCs to osteoblasts that formed new bone and accelerated fracture repair. This novel treatment may reduce the time required for fracture healing. Stem Cells Translational Medicine2017;6:1880–1893
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Affiliation(s)
- Hongliang Zhang
- Center for Musculoskeletal Health, Department of Internal Medicine, Sacramento, California, USA.,Department of Emergency Medicine, Center for Difficult Diagnoses and Rare Diseases, Second Xiangya Hospital of the Central-South University, Hunan, Changsha, People's Republic of China
| | - Alexander Kot
- Center for Musculoskeletal Health, Department of Internal Medicine, Sacramento, California, USA
| | - Yu-An E Lay
- Center for Musculoskeletal Health, Department of Internal Medicine, Sacramento, California, USA
| | - Fernando A Fierro
- Stem Cell Program, UC Davis Health System, Institute for Regenerative Cures, University of California Davis Medical Center, Sacramento, California, USA
| | - Haiyan Chen
- Center for Musculoskeletal Health, Department of Internal Medicine, Sacramento, California, USA.,Adult Programs Division, California Department of Social Services, Sacramento, California, USA
| | - Nancy E Lane
- Center for Musculoskeletal Health, Department of Internal Medicine, Sacramento, California, USA
| | - Wei Yao
- Center for Musculoskeletal Health, Department of Internal Medicine, Sacramento, California, USA
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Addi C, Murschel F, De Crescenzo G. Design and Use of Chimeric Proteins Containing a Collagen-Binding Domain for Wound Healing and Bone Regeneration. TISSUE ENGINEERING PART B-REVIEWS 2016; 23:163-182. [PMID: 27824290 DOI: 10.1089/ten.teb.2016.0280] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Collagen-based biomaterials are widely used in the field of tissue engineering; they can be loaded with biomolecules such as growth factors (GFs) to modulate the biological response of the host and thus improve its potential for regeneration. Recombinant chimeric GFs fused to a collagen-binding domain (CBD) have been reported to improve their bioavailability and the host response, especially when combined with an appropriate collagen-based biomaterial. This review first provides an extensive description of the various CBDs that have been fused to proteins, with a focus on the need for accurate characterization of their interaction with collagen. The second part of the review highlights the benefits of various CBD/GF fusion proteins that have been designed for wound healing and bone regeneration.
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Affiliation(s)
- Cyril Addi
- Biomedical Science and Technology Research Group, Bio-P2 Research Unit , Department of Chemical Engineering, École Polytechnique de Montréal, Montréal, Canada
| | - Frederic Murschel
- Biomedical Science and Technology Research Group, Bio-P2 Research Unit , Department of Chemical Engineering, École Polytechnique de Montréal, Montréal, Canada
| | - Gregory De Crescenzo
- Biomedical Science and Technology Research Group, Bio-P2 Research Unit , Department of Chemical Engineering, École Polytechnique de Montréal, Montréal, Canada
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Chiu YH, Ritchlin CT. DC-STAMP: A Key Regulator in Osteoclast Differentiation. J Cell Physiol 2016; 231:2402-7. [PMID: 27018136 DOI: 10.1002/jcp.25389] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Accepted: 03/24/2016] [Indexed: 01/09/2023]
Abstract
Osteoimmunology research is a new emerging research field that investigates the links between the bone and immune responses. Results from osteoimmunology studies suggest that bone is not only an essential component of the musculoskeletal system, but is also actively involved in immune regulation. Many important factors involved in immune regulation also participate in bone homeostasis. Bone homeostasis is achieved by a coordinated action between bone-synthesizing osteoblasts and bone-degrading osteoclasts. An imbalanced action between osteoblasts and osteoclasts often results in pathological bone diseases: osteoporosis is caused by an excessive osteoclast activity, whereas osteopetrosis results from an increased osteoblast activity. This review focuses on dendritic cell-specific transmembrane protein (DC-STAMP), an important protein currently considered as a master regulator of osteoclastogenesis. Of clinical relevance, the frequency of circulating DC-STAMP+ cells is elevated during the pathogenesis of psoriatic diseases. Intriguingly, recent results suggest that DC-STAMP also plays an imperative role in bone homeostasis by regulating the differentiation of both osteoclasts and osteoblasts. This article summarizes our current knowledge on DC-STAMP by focusing on its interacting proteins, its regulation on osteoclastogenesis-related genes, its possible involvement in immunoreceptor tyrosine-based inhibitory motif (ITIM)-mediated signaling cascade, and its potential of developing therapeutics for clinical applications. J. Cell. Physiol. 231: 2402-2407, 2016. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Ya-Hui Chiu
- Division of Allergy, Immunology and Rheumatology, School of Medicine, University of Rochester, Rochester, New York
| | - Christopher T Ritchlin
- Division of Allergy, Immunology and Rheumatology, School of Medicine, University of Rochester, Rochester, New York
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Fruchtl M, Sakon J, Beitle R. Alternate carbohydrate and nontraditional inducer leads to increased productivity of a collagen binding domain fusion protein via fed-batch fermentation. J Biotechnol 2016; 226:65-73. [PMID: 26975843 DOI: 10.1016/j.jbiotec.2016.03.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Revised: 03/04/2016] [Accepted: 03/10/2016] [Indexed: 01/21/2023]
Abstract
The production of collagen binding domain fusion proteins is of significant importance because of their potential as therapeutic biomaterials. It was previously reported that the expression of collagen-binding domain fusion proteins in Escherichia coli was higher when expressed using lactose as an inducer and chemically defined growth media on a shake flask scale. In an effort to further investigate factors that affect expression levels on a fed-batch scale, alternative induction techniques were tested in conjunction with fed-batch fermentation. In this paper, we discuss ten fed-batch fermentation experiments utilizing either glucose or glycerol feed and using lactose or isopropyl-β-d-thiogalactopyranoside (IPTG) as an induction source. It was found that glycerol-fed fermentations induced with lactose allowed for greater expression of target protein, though lesser cell densities were achieved.
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Affiliation(s)
- McKinzie Fruchtl
- Ralph E. Martin Department of Chemical Engineering, 3202 Bell Engineering Center, University of Arkansas, Fayetteville, AR 72701, USA
| | - Joshua Sakon
- Department of Chemistry and Biochemistry, University of Arkansas, 119 Chemistry Building, University of Arkansas, Fayetteville, AR 72701, USA
| | - Robert Beitle
- Ralph E. Martin Department of Chemical Engineering, 3202 Bell Engineering Center, University of Arkansas, Fayetteville, AR 72701, USA.
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Sekiguchi H, Uchida K, Inoue G, Matsushita O, Saito W, Aikawa J, Tanaka K, Fujimaki H, Miyagi M, Takaso M. Acceleration of bone formation during fracture healing by poly(pro-hyp-gly)10and basic fibroblast growth factor containing polycystic kidney disease and collagen-binding domains fromClostridium histolyticumcollagenase. J Biomed Mater Res A 2016; 104:1372-8. [DOI: 10.1002/jbm.a.35670] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Revised: 01/20/2016] [Accepted: 01/28/2016] [Indexed: 12/12/2022]
Affiliation(s)
- Hiroyuki Sekiguchi
- Department of Orthopedic Surgery; Kitasato University School of Medicine; 1-15-1 Minami-Ku, Kitasato Sagamihara City Kanagawa 252-0374 Japan
| | - Kentaro Uchida
- Department of Orthopedic Surgery; Kitasato University School of Medicine; 1-15-1 Minami-Ku, Kitasato Sagamihara City Kanagawa 252-0374 Japan
| | - Gen Inoue
- Department of Orthopedic Surgery; Kitasato University School of Medicine; 1-15-1 Minami-Ku, Kitasato Sagamihara City Kanagawa 252-0374 Japan
| | - Osamu Matsushita
- Department of Bacteriology; Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences; 2-5-1 Kita-Ku Shikata-Cho Okayama Japan
| | - Wataru Saito
- Department of Orthopedic Surgery; Kitasato University School of Medicine; 1-15-1 Minami-Ku, Kitasato Sagamihara City Kanagawa 252-0374 Japan
| | - Jun Aikawa
- Department of Orthopedic Surgery; Kitasato University School of Medicine; 1-15-1 Minami-Ku, Kitasato Sagamihara City Kanagawa 252-0374 Japan
| | - Keisuke Tanaka
- Nippi Research Institute of Biomatrix and Protein Engineering Project; 520-11, Kuwabara Toride-Shi Ibaraki-Ken Japan
| | - Hisako Fujimaki
- Department of Orthopedic Surgery; Kitasato University School of Medicine; 1-15-1 Minami-Ku, Kitasato Sagamihara City Kanagawa 252-0374 Japan
| | - Masayuki Miyagi
- Department of Orthopedic Surgery; Kitasato University School of Medicine; 1-15-1 Minami-Ku, Kitasato Sagamihara City Kanagawa 252-0374 Japan
| | - Masashi Takaso
- Department of Orthopedic Surgery; Kitasato University School of Medicine; 1-15-1 Minami-Ku, Kitasato Sagamihara City Kanagawa 252-0374 Japan
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