1
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Gomez S, Millán JL. Zinc-alkaline phosphatase at sites of aortic calcification. J Mol Histol 2024; 55:465-479. [PMID: 38850447 PMCID: PMC11306377 DOI: 10.1007/s10735-024-10207-3] [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: 03/20/2024] [Accepted: 05/26/2024] [Indexed: 06/10/2024]
Abstract
Zinc (Zn) is a normal trace element in mineralizing tissues, but it is unclear whether it is primarily bound to the mineral phase or to organic molecules involved in the mineralization process, or both. Tissue-nonspecific alkaline phosphatase (TNAP) is a Zn metalloenzyme with two Zn ions bound to the M1 and M2 catalytic sites that functions to control the phosphate/pyrophosphate ratio during biomineralization. Here, we studied aortas from Tagln-Cre +/-; HprtALP/Y TNAP overexpressor (TNAP-OE) mice that develop severe calcification. Zn histochemistry was performed using the sulfide-silver staining method in combination with a Zn partial extraction procedure to localize mineral-bound (mineral Zn) and TNAP-bound Zn (tenacious Zn), since soluble Zn (loose Zn) is extracted during fixation of the specimens. Two synthetic bone mineral composites with different Zn content, bone ash, and rat epiphyseal growth plate cartilage were used as controls for Zn staining. In order to correlate the distribution of mineral and tenacious Zn with the presence of mineral deposits, the aortas were examined histologically in unstained and stained thin sections using various light microscopy techniques. Our results show that 14 and 30 dpn, TNAP is concentrated in the calcifying matrix and loses Zn as Ca2+ progressively displaces Zn2+ at the M1 and M2 metal sites. Thus, in addition to its catalytic role TNAP has an additional function at calcifying sites as a Ca-binding protein.
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Affiliation(s)
- Santiago Gomez
- Departamento Anatomía Patológica, Facultad de Medicina, Universidad de Cádiz, Plaza Fragela 9, Cádiz, 11003, Spain.
| | - José Luis Millán
- Sanford Children's Health Research Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
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2
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Wan Z, Bai X, Wang X, Guo X, Wang X, Zhai M, Fu Y, Liu Y, Zhang P, Zhang X, Yang R, Liu Y, Lv L, Zhou Y. Mgp High-Expressing MSCs Orchestrate the Osteoimmune Microenvironment of Collagen/Nanohydroxyapatite-Mediated Bone Regeneration. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2308986. [PMID: 38588510 PMCID: PMC11187922 DOI: 10.1002/advs.202308986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 03/22/2024] [Indexed: 04/10/2024]
Abstract
Activating autologous stem cells after the implantation of biomaterials is an important process to initiate bone regeneration. Although several studies have demonstrated the mechanism of biomaterial-mediated bone regeneration, a comprehensive single-cell level transcriptomic map revealing the influence of biomaterials on regulating the temporal and spatial expression patterns of mesenchymal stem cells (MSCs) is still lacking. Herein, the osteoimmune microenvironment is depicted around the classical collagen/nanohydroxyapatite-based bone repair materials via combining analysis of single-cell RNA sequencing and spatial transcriptomics. A group of functional MSCs with high expression of matrix Gla protein (Mgp) is identified, which may serve as a pioneer subpopulation involved in bone repair. Remarkably, these Mgp high-expressing MSCs (MgphiMSCs) exhibit efficient osteogenic differentiation potential and orchestrate the osteoimmune microenvironment around implanted biomaterials, rewiring the polarization and osteoclastic differentiation of macrophages through the Mdk/Lrp1 ligand-receptor pair. The inhibition of Mdk/Lrp1 activates the pro-inflammatory programs of macrophages and osteoclastogenesis. Meanwhile, multiple immune-cell subsets also exhibit close crosstalk between MgphiMSCs via the secreted phosphoprotein 1 (SPP1) signaling pathway. These cellular profiles and interactions characterized in this study can broaden the understanding of the functional MSC subpopulations at the early stage of biomaterial-mediated bone regeneration and provide the basis for materials-designed strategies that target osteoimmune modulation.
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Affiliation(s)
- Zhuqing Wan
- Department of ProsthodonticsPeking University School and Hospital of StomatologyHaidian DistrictBeijing100081China
- National Center for Stomatology, National Clinical Research Center for Oral Disease, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing Key Laboratory of Digital Stomatology, NHC Key Laboratory of Digital Stomatology, Key Laboratory of Digital StomatologyChinese Academy of Medical SciencesHaidian DistrictBeijing100081China
| | - Xiaoqiang Bai
- Department of ProsthodonticsPeking University School and Hospital of StomatologyHaidian DistrictBeijing100081China
- National Center for Stomatology, National Clinical Research Center for Oral Disease, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing Key Laboratory of Digital Stomatology, NHC Key Laboratory of Digital Stomatology, Key Laboratory of Digital StomatologyChinese Academy of Medical SciencesHaidian DistrictBeijing100081China
| | - Xin Wang
- Department of ProsthodonticsPeking University School and Hospital of StomatologyHaidian DistrictBeijing100081China
- National Center for Stomatology, National Clinical Research Center for Oral Disease, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing Key Laboratory of Digital Stomatology, NHC Key Laboratory of Digital Stomatology, Key Laboratory of Digital StomatologyChinese Academy of Medical SciencesHaidian DistrictBeijing100081China
| | - Xiaodong Guo
- Department of ProsthodonticsPeking University School and Hospital of StomatologyHaidian DistrictBeijing100081China
- National Center for Stomatology, National Clinical Research Center for Oral Disease, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing Key Laboratory of Digital Stomatology, NHC Key Laboratory of Digital Stomatology, Key Laboratory of Digital StomatologyChinese Academy of Medical SciencesHaidian DistrictBeijing100081China
| | - Xu Wang
- Department of ProsthodonticsPeking University School and Hospital of StomatologyHaidian DistrictBeijing100081China
- National Center for Stomatology, National Clinical Research Center for Oral Disease, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing Key Laboratory of Digital Stomatology, NHC Key Laboratory of Digital Stomatology, Key Laboratory of Digital StomatologyChinese Academy of Medical SciencesHaidian DistrictBeijing100081China
| | - Mo Zhai
- Department of ProsthodonticsPeking University School and Hospital of StomatologyHaidian DistrictBeijing100081China
- National Center for Stomatology, National Clinical Research Center for Oral Disease, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing Key Laboratory of Digital Stomatology, NHC Key Laboratory of Digital Stomatology, Key Laboratory of Digital StomatologyChinese Academy of Medical SciencesHaidian DistrictBeijing100081China
| | - Yang Fu
- Department of ProsthodonticsPeking University School and Hospital of StomatologyHaidian DistrictBeijing100081China
- National Center for Stomatology, National Clinical Research Center for Oral Disease, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing Key Laboratory of Digital Stomatology, NHC Key Laboratory of Digital Stomatology, Key Laboratory of Digital StomatologyChinese Academy of Medical SciencesHaidian DistrictBeijing100081China
| | - Yunsong Liu
- Department of ProsthodonticsPeking University School and Hospital of StomatologyHaidian DistrictBeijing100081China
- National Center for Stomatology, National Clinical Research Center for Oral Disease, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing Key Laboratory of Digital Stomatology, NHC Key Laboratory of Digital Stomatology, Key Laboratory of Digital StomatologyChinese Academy of Medical SciencesHaidian DistrictBeijing100081China
| | - Ping Zhang
- Department of ProsthodonticsPeking University School and Hospital of StomatologyHaidian DistrictBeijing100081China
- National Center for Stomatology, National Clinical Research Center for Oral Disease, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing Key Laboratory of Digital Stomatology, NHC Key Laboratory of Digital Stomatology, Key Laboratory of Digital StomatologyChinese Academy of Medical SciencesHaidian DistrictBeijing100081China
| | - Xiao Zhang
- Department of ProsthodonticsPeking University School and Hospital of StomatologyHaidian DistrictBeijing100081China
- National Center for Stomatology, National Clinical Research Center for Oral Disease, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing Key Laboratory of Digital Stomatology, NHC Key Laboratory of Digital Stomatology, Key Laboratory of Digital StomatologyChinese Academy of Medical SciencesHaidian DistrictBeijing100081China
| | - Ruili Yang
- National Center for Stomatology, National Clinical Research Center for Oral Disease, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing Key Laboratory of Digital Stomatology, NHC Key Laboratory of Digital Stomatology, Key Laboratory of Digital StomatologyChinese Academy of Medical SciencesHaidian DistrictBeijing100081China
- Department of OrthodonticsPeking University School and Hospital of StomatologyHaidian DistrictBeijing100081China
| | - Yan Liu
- National Center for Stomatology, National Clinical Research Center for Oral Disease, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing Key Laboratory of Digital Stomatology, NHC Key Laboratory of Digital Stomatology, Key Laboratory of Digital StomatologyChinese Academy of Medical SciencesHaidian DistrictBeijing100081China
- Department of OrthodonticsPeking University School and Hospital of StomatologyHaidian DistrictBeijing100081China
| | - Longwei Lv
- Department of ProsthodonticsPeking University School and Hospital of StomatologyHaidian DistrictBeijing100081China
- National Center for Stomatology, National Clinical Research Center for Oral Disease, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing Key Laboratory of Digital Stomatology, NHC Key Laboratory of Digital Stomatology, Key Laboratory of Digital StomatologyChinese Academy of Medical SciencesHaidian DistrictBeijing100081China
| | - Yongsheng Zhou
- Department of ProsthodonticsPeking University School and Hospital of StomatologyHaidian DistrictBeijing100081China
- National Center for Stomatology, National Clinical Research Center for Oral Disease, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing Key Laboratory of Digital Stomatology, NHC Key Laboratory of Digital Stomatology, Key Laboratory of Digital StomatologyChinese Academy of Medical SciencesHaidian DistrictBeijing100081China
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3
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Choi W, Lee M, Yong H, Heo D, Jun T, Ryu H, Kim JY, Cui D, Ryu DY, Lee SY, Choi SH, Kim BS, Kim J, Jung SY, Lee S, Hong J. Anisotropic Liesegang pattern for the nonlinear elastic biomineral-hydrogel complex. SCIENCE ADVANCES 2024; 10:eadl3075. [PMID: 38669324 PMCID: PMC11051667 DOI: 10.1126/sciadv.adl3075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 03/27/2024] [Indexed: 04/28/2024]
Abstract
The Liesegang pattern is a beautiful natural anisotropic patterning phenomenon observed in rocks and sandstones. This study reveals that the Liesegang pattern can induce nonlinear elasticity. Here, a Liesegang-patterned complex with biomineral-hydrogel repetitive layers is prepared. This Liesegang-patterned complex is obtained only when the biomineralization is performed under the supersaturated conditions. The Liesegang-patterned complex features a nonlinear elastic response, whereas a complex with a single biomineral shell shows a linear behavior, thus demonstrating that the Liesegang pattern is essential in achieving nonlinear elasticity. The stiff biomineral layers have buffered the concentrated energy on behalf of soft hydrogels, thereby exposing the hydrogel components to reduced stress and, in turn, enabling them to perform the elasticity continuously. Moreover, the nonlinear elastic Liesegang-patterned complex exhibits excellent stress relaxation to the external loading, which is the biomechanical characteristic of cartilage. This stress relaxation allows the bundle of fiber-type Liesegang-patterned complex to endure greater deformation.
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Affiliation(s)
- Woojin Choi
- Department of Chemical and Biomolecular Engineering, College of Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Milae Lee
- Department of Chemical and Biomolecular Engineering, College of Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Hyungseok Yong
- Department of Chemical and Biomolecular Engineering, College of Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Deokjae Heo
- School of Mechanical Engineering, Chung-ang University, 84, Heukserok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Taesuk Jun
- Department of Chemical and Biomolecular Engineering, College of Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Hanwook Ryu
- School of Mechanical Engineering, Chung-ang University, 84, Heukserok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Ji-Yeong Kim
- Department of Orthodontics, Institute of Craniofacial Deformity, Yonsei University College of Dentistry, Seoul 03722, Republic of Korea
| | - Dingyun Cui
- Department of Chemical and Biomolecular Engineering, College of Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Du Yeol Ryu
- Department of Chemical and Biomolecular Engineering, College of Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Sang-Young Lee
- Department of Chemical and Biomolecular Engineering, College of Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Sung-Hwan Choi
- Department of Orthodontics, Institute of Craniofacial Deformity, Yonsei University College of Dentistry, Seoul 03722, Republic of Korea
| | - Byeong-Su Kim
- Department of Chemistry, Yonsei University, Seoul 03722, Republic of Korea
| | - Jiyu Kim
- Department of Chemical and Biomolecular Engineering, College of Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Se Yong Jung
- Department of Pediatrics, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Sangmin Lee
- School of Mechanical Engineering, Chung-ang University, 84, Heukserok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Jinkee Hong
- Department of Chemical and Biomolecular Engineering, College of Engineering, Yonsei University, Seoul 03722, Republic of Korea
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4
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Robin M, Djediat C, Bardouil A, Baccile N, Chareyron C, Zizak I, Fratzl P, Selmane M, Haye B, Genois I, Krafft J, Costentin G, Azaïs T, Artzner F, Giraud‐Guille M, Zaslansky P, Nassif N. Acidic Osteoid Templates the Plywood Structure of Bone Tissue. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2304454. [PMID: 38115757 PMCID: PMC10916609 DOI: 10.1002/advs.202304454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 11/18/2023] [Indexed: 12/21/2023]
Abstract
Bone is created by osteoblasts that secrete osteoid after which an ordered texture emerges, followed by mineralization. Plywood geometries are a hallmark of many trabecular and cortical bones, yet the origin of this texturing in vivo has never been shown. Nevertheless, extensive in vitro work revealed how plywood textures of fibrils can emerge from acidic molecular cholesteric collagen mesophases. This study demonstrates in sheep, which is the preferred model for skeletal orthopaedic research, that the deeper non-fibrillar osteoid is organized in a liquid-crystal cholesteric geometry. This basophilic domain, rich in acidic glycosaminoglycans, exhibits low pH which presumably fosters mesoscale collagen molecule ordering in vivo. The results suggest that the collagen fibril motif of twisted plywood matures slowly through self-assembly thermodynamically driven processes as proposed by the Bouligand theory of biological analogues of liquid crystals. Understanding the steps of collagen patterning in osteoid-maturation processes may shed new light on bone pathologies that emerge from collagen physico-chemical maturation imbalances.
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Affiliation(s)
- Marc Robin
- CNRS, Sorbonne Université, Collège de FranceLaboratoire Chimie de la Matière Condensée de Paris (LCMCP)ParisF‐75005France
| | - Chakib Djediat
- Muséum National d'Histoire NaturelleUMR CNRS 7245, Bâtiment 39, CP 39, 57 rue CuvierParis75231France
| | - Arnaud Bardouil
- Université de Rennes, CNRSInstitut de Physique de Rennes (IPR)RennesF‐35000France
| | - Niki Baccile
- CNRS, Sorbonne Université, Collège de FranceLaboratoire Chimie de la Matière Condensée de Paris (LCMCP)ParisF‐75005France
| | - Camille Chareyron
- CNRS, Sorbonne Université, Collège de FranceLaboratoire Chimie de la Matière Condensée de Paris (LCMCP)ParisF‐75005France
| | - Ivo Zizak
- Helmholtz‐Zentrum Berlin für Materialien und Energie – Speicherring BESSY IIAlbert‐Einstein Str. 15D‐12349BerlinGermany
| | - Peter Fratzl
- Department of BiomaterialsMax Planck Institute of Colloids and Interfacesam Mühlenberg 114476PotsdamGermany
| | - Mohamed Selmane
- Institut des Matériaux de Paris CentreSorbonne UniversitéParisF‐75005France
| | - Bernard Haye
- CNRS, Sorbonne Université, Collège de FranceLaboratoire Chimie de la Matière Condensée de Paris (LCMCP)ParisF‐75005France
| | - Isabelle Genois
- CNRS, Sorbonne Université, Collège de FranceLaboratoire Chimie de la Matière Condensée de Paris (LCMCP)ParisF‐75005France
| | - Jean‐Marc Krafft
- Sorbonne Université, CNRSLaboratoire Réactivité de Surface (LRS)ParisF‐75005France
| | - Guylène Costentin
- Sorbonne Université, CNRSLaboratoire Réactivité de Surface (LRS)ParisF‐75005France
| | - Thierry Azaïs
- CNRS, Sorbonne Université, Collège de FranceLaboratoire Chimie de la Matière Condensée de Paris (LCMCP)ParisF‐75005France
| | - Franck Artzner
- Université de Rennes, CNRSInstitut de Physique de Rennes (IPR)RennesF‐35000France
| | - Marie‐Madeleine Giraud‐Guille
- CNRS, Sorbonne Université, Collège de FranceLaboratoire Chimie de la Matière Condensée de Paris (LCMCP)ParisF‐75005France
| | - Paul Zaslansky
- Department for OperativePreventive and Pediatric DentistryCharité – Universitätsmedizin BerlinAßmannshauser Str. 4–614197BerlinGermany
| | - Nadine Nassif
- CNRS, Sorbonne Université, Collège de FranceLaboratoire Chimie de la Matière Condensée de Paris (LCMCP)ParisF‐75005France
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5
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Krupyanskii YF. Determination of DNA architecture of bacteria under various types of stress, methodological approaches, problems, and solutions. Biophys Rev 2023; 15:1035-1051. [PMID: 37974993 PMCID: PMC10643406 DOI: 10.1007/s12551-023-01122-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 08/23/2023] [Indexed: 11/19/2023] Open
Abstract
Actively growing cells maintain a dynamic, far from equilibrium order through metabolism. Under starvation stress or under stress of exposure to the analog of the anabiosis autoinducer (4-hexylresorcinol), cells go into a dormant state (almost complete lack of metabolism) or even into a mummified state. In a dormant state, cells are forced to use the physical mechanisms of DNA protection. The architecture of DNA in the dormant and mummified state of cells was studied by x-ray diffraction of synchrotron radiation and transmission electron microscopy (TEM). Diffraction experiments indicate the appearance of an ordered organization of DNA. TEM made it possible to visualize the type of DNA ordering. Intracellular nanocrystalline, liquid-crystalline, and folded nucleosome-like structures of DNA have been found. The structure of DNA within a cell in an anabiotic dormant state and dormant state (starvation stress) coincides (forms nanocrystalline structures). Data suggest the universality of DNA condensation by a protein Dps for a dormant state, regardless of the type of stress. The mummified state is very different in structure from the dormant state (has no ordering within a cell). It turned out that it is possible to visualize DNA conformation in toroidal and liquid crystal structures in which there is either no or a very small amount of the Dps protein. Observation of the DNA conformation in nanocrystals and folded nucleosome-like structures so far has been inconclusive. The methodological advances described will facilitate high-resolution visualization of the DNA conformation in the near future.
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Affiliation(s)
- Yu. F. Krupyanskii
- N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, Department of Structure of Matter, 119991, Kosygina 4, Moscow, Russia
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6
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Bai Y, Wang Y, Kang M, Gabe CM, Srirangapatanam S, Edwards A, Stoller M, Green SJ, Aloni S, Tamura N, Beniash E, Hardt M, Ho SP. Organic Matrix Derived from Host-Microbe Interplay Contributes to Pathological Renal Biomineralization. ACS NANOSCIENCE AU 2023; 3:335-346. [PMID: 37601921 PMCID: PMC10436370 DOI: 10.1021/acsnanoscienceau.2c00060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 05/26/2023] [Accepted: 05/26/2023] [Indexed: 08/22/2023]
Abstract
Matrix stones are a rare form of kidney stones. They feature a high percentage of hydrogel-like organic matter, and their formation is closely associated with urinary tract infections. Herein, comprehensive materials and biochemical approaches were taken to map the organic-inorganic interface and gather insights into the host-microbe interplay in pathological renal biomineralization. Surgically extracted soft and slimy matrix stones were examined using micro-X-ray computed tomography and various microspectroscopy techniques. Higher-mineral-density laminae were positive for calcium-bound Alizarin red. Lower-mineral-density laminae revealed periodic acid-Schiff-positive organic filamentous networks of varied thickness. These organic filamentous networks, which featured a high polysaccharide content, were enriched with zinc, carbon, and sulfur elements. Neutrophil extracellular traps (NETs) along with immune response-related proteins, including calprotectin, myeloperoxidase, CD63, and CD86, also were identified in the filamentous networks. Expressions of NETs and upregulation of polysaccharide-rich mucin secretion are proposed as a part of the host immune defense to "trap" pathogens. These host-microbe derived organic matrices can facilitate heterogeneous nucleation and precipitation of inorganic particulates, resulting in macroscale aggregates known as "matrix stones". These insights into the plausible aggregation of constituents through host-microbe interplay underscore the unique "double-edged sword" effect of the host immune response to pathogens and the resulting renal biominerals.
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Affiliation(s)
- Yushi Bai
- Department
of Preventive and Restorative Dental Sciences, School of Dentistry, University of California San Francisco, San Francisco, California 94143, United States
| | - Yongmei Wang
- Department
of Preventive and Restorative Dental Sciences, School of Dentistry, University of California San Francisco, San Francisco, California 94143, United States
| | - Misun Kang
- Department
of Preventive and Restorative Dental Sciences, School of Dentistry, University of California San Francisco, San Francisco, California 94143, United States
| | - Claire M. Gabe
- Department
of Oral and Craniofacial Sciences, School of Dentistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, United States
| | - Sudarshan Srirangapatanam
- Department
of Preventive and Restorative Dental Sciences, School of Dentistry, University of California San Francisco, San Francisco, California 94143, United States
- College
of Medicine, University of Central Florida, Orlando, Florida 32827, United States
| | - Austin Edwards
- Biological
Imaging Development Center, University of
California San Francisco, San Francisco, California 94143, United States
| | - Marshall Stoller
- Department
of Urology, School of Medicine, University
of California San Francisco, San Francisco, California 94143, United States
| | - Stefan J. Green
- Department
of Internal Medicine, Division of Infectious Diseases, Rush Medical
College, Rush University, Chicago, Illinois 60612, United States
| | - Shaul Aloni
- The
Molecular Foundry, Lawrence Berkeley National
Laboratory, Berkeley, California 94720, United States
| | - Nobumichi Tamura
- Advanced
Light Source, Lawrence Berkeley National
Laboratory, Berkeley, California 94720, United States
| | - Elia Beniash
- Department
of Oral and Craniofacial Sciences, School of Dentistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, United States
| | - Markus Hardt
- Center
for Salivary Diagnostics, The Forsyth Institute, Cambridge, Massachusetts 02142, United States
- Department
of Developmental Biology, Harvard School
of Dental Medicine, Boston, Massachusetts 02115, United States
| | - Sunita P. Ho
- Department
of Preventive and Restorative Dental Sciences, School of Dentistry, University of California San Francisco, San Francisco, California 94143, United States
- Department
of Urology, School of Medicine, University
of California San Francisco, San Francisco, California 94143, United States
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7
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Dejea H, Raina DB, Silva Barreto I, Sharma K, Liu Y, Ferreira Sanchez D, Johansson U, Isaksson H. Multi-scale characterization of the spatio-temporal interplay between elemental composition, mineral deposition and remodelling in bone fracture healing. Acta Biomater 2023:S1742-7061(23)00356-2. [PMID: 37369267 DOI: 10.1016/j.actbio.2023.06.031] [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: 03/31/2023] [Revised: 06/16/2023] [Accepted: 06/22/2023] [Indexed: 06/29/2023]
Abstract
Bone mineralization involves a complex orchestration of physico-chemical responses from the organism. Despite extensive studies, the detailed mechanisms of mineralization remain to be elucidated. This study aims to characterize bone mineralization using an in-vivo long bone fracture healing model in the rat. The spatio-temporal distribution of relevant elements was correlated to the deposition and maturation of hydroxyapatite and the presence of matrix remodeling compounds (MMP-13). Multi-scale measurements indicated that (i) zinc is required for both the initial mineral deposition and resorption processes during mature mineral remodeling; (ii) Zinc and MMP-13 show similar spatio-temporal trends during early mineralization; (iii) Iron acts locally and in coordination with zinc during mineralization, thus indicating novel evidence of the time-events and inter-play between the elements. These findings improve the understanding of bone mineralization by explaining the link between the different constituents of this process throughout the healing time. STATEMENT OF SIGNIFICANCE: Bone mineralization involves a complex orchestration of physico-chemical responses from the organism, the detailed mechanisms of which remain to be elucidated. This study presents a highly novel multi-scale multi-modal investigation of bone mineralization using bone fracture healing as a model system. We present original characterization of tissue mineralization, where we relate the spatio-temporal distribution of important trace elements to a key matrix remodeling compound (MMP-13), the initial deposition and maturation of hydroxyapatite and further remodeling processes. This is the first time that mineralization has been probed down to the nanometric level, and where key mineralization components have been investigated to achieve a comprehensive and mechanistic understanding of the underlying mineralization processes during bone healing.
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Affiliation(s)
- Hector Dejea
- Department of Biomedical Engineering, Lund University, 223 62 Lund, Sweden, MAX IV Laboratory, Lund University, 224 84 Lund, Sweden.
| | - Deepak Bushan Raina
- Orthopedics, Department of Clinical Sciences, Lund University, 223 62 Lund, Sweden.
| | | | - Kunal Sharma
- Department of Biomedical Engineering, Lund University, 223 62 Lund, Sweden.
| | - Yang Liu
- Orthopedics, Department of Clinical Sciences, Lund University, 223 62 Lund, Sweden.
| | | | - Ulf Johansson
- MAX IV Laboratory, Lund University, 224 84 Lund, Sweden.
| | - Hanna Isaksson
- Department of Biomedical Engineering, Lund University, 223 62 Lund, Sweden.
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8
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Rossi F, Picone G, Cappadone C, Sorrentino A, Columbaro M, Farruggia G, Catelli E, Sciutto G, Prati S, Oliete R, Pasini A, Pereiro E, Iotti S, Malucelli E. Shedding Light on Osteosarcoma Cell Differentiation: Impact on Biomineralization and Mitochondria Morphology. Int J Mol Sci 2023; 24:ijms24108559. [PMID: 37239904 DOI: 10.3390/ijms24108559] [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: 04/21/2023] [Revised: 05/04/2023] [Accepted: 05/08/2023] [Indexed: 05/28/2023] Open
Abstract
Osteosarcoma (OS) is the most common primary malignant bone tumor and its etiology has recently been associated with osteogenic differentiation dysfunctions. OS cells keep a capacity for uncontrolled proliferation showing a phenotype similar to undifferentiated osteoprogenitors with abnormal biomineralization. Within this context, both conventional and X-ray synchrotron-based techniques have been exploited to deeply characterize the genesis and evolution of mineral depositions in a human OS cell line (SaOS-2) exposed to an osteogenic cocktail for 4 and 10 days. A partial restoration of the physiological biomineralization, culminating with the formation of hydroxyapatite, was observed at 10 days after treatment together with a mitochondria-driven mechanism for calcium transportation within the cell. Interestingly, during differentiation, mitochondria showed a change in morphology from elongated to rounded, indicating a metabolic reprogramming of OS cells possibly linked to an increase in glycolysis contribution to energy metabolism. These findings add a dowel to the genesis of OS giving new insights on the development of therapeutic strategies able to restore the physiological mineralization in OS cells.
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Affiliation(s)
- Francesca Rossi
- Department of Pharmacy and Biotechnology, University of Bologna, 40126 Bologna, Italy
| | - Giovanna Picone
- Department of Pharmacy and Biotechnology, University of Bologna, 40126 Bologna, Italy
| | - Concettina Cappadone
- Department of Pharmacy and Biotechnology, University of Bologna, 40126 Bologna, Italy
| | - Andrea Sorrentino
- Mistral Beamline, ALBA Synchrotron Light Source, Cerdanyola del Valles, 08290 Barcelona, Spain
| | - Marta Columbaro
- Piattaforma di Microscopia Elettronica, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy
| | - Giovanna Farruggia
- Department of Pharmacy and Biotechnology, University of Bologna, 40126 Bologna, Italy
- National Institute of Biostructures and Biosystems (NIBB), 00136 Rome, Italy
| | - Emilio Catelli
- Department of Chemistry "G. Ciamician", Università di Bologna, Ravenna Campus, Via Guaccimanni, 42, 48121 Ravenna, Italy
| | - Giorgia Sciutto
- Department of Chemistry "G. Ciamician", Università di Bologna, Ravenna Campus, Via Guaccimanni, 42, 48121 Ravenna, Italy
| | - Silvia Prati
- Department of Chemistry "G. Ciamician", Università di Bologna, Ravenna Campus, Via Guaccimanni, 42, 48121 Ravenna, Italy
| | - Robert Oliete
- Mistral Beamline, ALBA Synchrotron Light Source, Cerdanyola del Valles, 08290 Barcelona, Spain
| | - Alice Pasini
- Department of Electrical, Electronic and Information Engineering "Guglielmo Marconi" (DEI), University of Bologna, Via dell'Università 50, 47522 Cesena, Italy
| | - Eva Pereiro
- Mistral Beamline, ALBA Synchrotron Light Source, Cerdanyola del Valles, 08290 Barcelona, Spain
| | - Stefano Iotti
- Department of Pharmacy and Biotechnology, University of Bologna, 40126 Bologna, Italy
- National Institute of Biostructures and Biosystems (NIBB), 00136 Rome, Italy
| | - Emil Malucelli
- Department of Pharmacy and Biotechnology, University of Bologna, 40126 Bologna, Italy
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9
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Castiglioni S, Locatelli L, Cazzaniga A, Orecchio FM, Santaniello T, Piazzoni C, Bureau L, Borghi F, Milani P, Maier JA. Cluster-Assembled Zirconia Substrates Accelerate the Osteogenic Differentiation of Bone Marrow Mesenchymal Stem Cells. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:801. [PMID: 36903679 PMCID: PMC10005756 DOI: 10.3390/nano13050801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 02/17/2023] [Accepted: 02/20/2023] [Indexed: 06/18/2023]
Abstract
Due to their high mechanical strength and good biocompatibility, nanostructured zirconia surfaces (ns-ZrOx) are widely used for bio-applications. Through supersonic cluster beam deposition, we produced ZrOx films with controllable roughness at the nanoscale, mimicking the morphological and topographical properties of the extracellular matrix. We show that a 20 nm ns-ZrOx surface accelerates the osteogenic differentiation of human bone marrow-derived MSCs (bMSCs) by increasing the deposition of calcium in the extracellular matrix and upregulating some osteogenic differentiation markers. bMSCs seeded on 20 nm ns-ZrOx show randomly oriented actin fibers, changes in nuclear morphology, and a reduction in mitochondrial transmembrane potential when compared to the cells cultured on flat zirconia (flat-ZrO2) substrates and glass coverslips used as controls. Additionally, an increase in ROS, known to promote osteogenesis, was detected after 24 h of culture on 20 nm ns-ZrOx. All the modifications induced by the ns-ZrOx surface are rescued after the first hours of culture. We propose that ns-ZrOx-induced cytoskeletal remodeling transmits signals generated by the extracellular environment to the nucleus, with the consequent modulation of the expression of genes controlling cell fate.
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Affiliation(s)
- Sara Castiglioni
- Department of Biomedical and Clinical Sciences, Università di Milano, 20157 Milano, Italy
| | - Laura Locatelli
- Department of Biomedical and Clinical Sciences, Università di Milano, 20157 Milano, Italy
| | - Alessandra Cazzaniga
- Department of Biomedical and Clinical Sciences, Università di Milano, 20157 Milano, Italy
| | - Francesca Maria Orecchio
- Department of Physics and Interdisciplinary Centre for Nanostructured Materials and Interfaces (C.I.Ma.I.Na.[M1]), University of Milan, Via Giovanni Celoria, 16, 20133 Milan, Italy
| | - Tommaso Santaniello
- Department of Physics and Interdisciplinary Centre for Nanostructured Materials and Interfaces (C.I.Ma.I.Na.[M1]), University of Milan, Via Giovanni Celoria, 16, 20133 Milan, Italy
| | - Claudio Piazzoni
- Department of Physics and Interdisciplinary Centre for Nanostructured Materials and Interfaces (C.I.Ma.I.Na.[M1]), University of Milan, Via Giovanni Celoria, 16, 20133 Milan, Italy
| | - Lionel Bureau
- Laboratoire Interdisciplinaire de Physique (LIPhy), Université Grenoble Alpes, CNRS, F-38000 Grenoble, France
| | - Francesca Borghi
- Department of Physics and Interdisciplinary Centre for Nanostructured Materials and Interfaces (C.I.Ma.I.Na.[M1]), University of Milan, Via Giovanni Celoria, 16, 20133 Milan, Italy
| | - Paolo Milani
- Department of Physics and Interdisciplinary Centre for Nanostructured Materials and Interfaces (C.I.Ma.I.Na.[M1]), University of Milan, Via Giovanni Celoria, 16, 20133 Milan, Italy
| | - Jeanette A. Maier
- Department of Biomedical and Clinical Sciences, Università di Milano, 20157 Milano, Italy
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10
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Bonany M, Pérez-Berná AJ, Dučić T, Pereiro E, Martin-Gómez H, Mas-Moruno C, van Rijt S, Zhao Z, Espanol M, Ginebra MP. Hydroxyapatite nanoparticles-cell interaction: New approaches to disclose the fate of membrane-bound and internalised nanoparticles. BIOMATERIALS ADVANCES 2022; 142:213148. [PMID: 36274359 DOI: 10.1016/j.bioadv.2022.213148] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 09/03/2022] [Accepted: 10/06/2022] [Indexed: 06/16/2023]
Abstract
Hydroxyapatite nanoparticles are popular tools in bone regeneration, but they have also been used for gene delivery and as anticancer drugs. Understanding their mechanism of action, particularly for the latter application, is crucial to predict their toxicity. To this end, we aimed to elucidate the importance of nanoparticle membrane interactions in the cytotoxicity of MG-63 cells using two different types of nanoparticles. In addition, conventional techniques for studying nanoparticle internalisation were evaluated and compared with newer and less exploited approaches. Hydroxyapatite and magnesium-doped hydroxyapatite nanoparticles were used as suspensions or compacted as specular discs. Comparison between cells seeded on the discs and those supplemented with the nanoparticles allowed direct interaction of the cell membrane with the material to be ruled out as the main mechanism of toxicity. In addition, standard techniques such as flow cytometry were inconclusive when used to assess nanoparticles toxicity. Interestingly, the use of intracellular calcium fluorescent probes revealed the presence of a high number of calcium-rich vesicles after nanoparticle supplementation in cell culture. These structures could not be detected by transmission electron microscopy due to their liquid content. However, by using cryo-soft X-ray imaging, which was used to visualise the cellular ultrastructure without further treatment other than vitrification and to quantify the linear absorption coefficient of each organelle, it was possible to identify them as multivesicular bodies, potentially acting as calcium stores. In the study, an advanced state of degradation of the hydroxyapatite and magnesium-doped hydroxyapatite nanoparticles within MG-63 cells was observed. Overall, we demonstrate that the combination of fluorescent calcium probes together with cryo-SXT is an excellent approach to investigate intracellular calcium, especially when found in its soluble form.
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Affiliation(s)
- Mar Bonany
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Engineering, Universitat Politècnica de Catalunya (UPC), 08019 Barcelona, Spain; Barcelona Research Centre in Multiscale Science and Engineering, UPC, 08019 Barcelona, Spain; Biomedical Engineering Research Center (CREB), UPC, 08028 Barcelona, Spain
| | | | - Tanja Dučić
- MISTRAL Beamline Experiments Division, ALBA Synchrotron Light Source, 08290 Barcelona, Spain
| | - Eva Pereiro
- MISTRAL Beamline Experiments Division, ALBA Synchrotron Light Source, 08290 Barcelona, Spain
| | - Helena Martin-Gómez
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Engineering, Universitat Politècnica de Catalunya (UPC), 08019 Barcelona, Spain; Barcelona Research Centre in Multiscale Science and Engineering, UPC, 08019 Barcelona, Spain
| | - Carlos Mas-Moruno
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Engineering, Universitat Politècnica de Catalunya (UPC), 08019 Barcelona, Spain; Barcelona Research Centre in Multiscale Science and Engineering, UPC, 08019 Barcelona, Spain; Biomedical Engineering Research Center (CREB), UPC, 08028 Barcelona, Spain
| | - Sabine van Rijt
- Department of Instructive Biomaterials Engineering, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, 6200, MD, Maastricht, the Netherlands
| | - Zhitong Zhao
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Engineering, Universitat Politècnica de Catalunya (UPC), 08019 Barcelona, Spain; School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore
| | - Montserrat Espanol
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Engineering, Universitat Politècnica de Catalunya (UPC), 08019 Barcelona, Spain; Barcelona Research Centre in Multiscale Science and Engineering, UPC, 08019 Barcelona, Spain; Biomedical Engineering Research Center (CREB), UPC, 08028 Barcelona, Spain.
| | - Maria-Pau Ginebra
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Engineering, Universitat Politècnica de Catalunya (UPC), 08019 Barcelona, Spain; Barcelona Research Centre in Multiscale Science and Engineering, UPC, 08019 Barcelona, Spain; Biomedical Engineering Research Center (CREB), UPC, 08028 Barcelona, Spain; Institute for Bioengineering of Catalonia (IBEC), Barcelona Institute of Science and Technology, 08028 Barcelona, Spain
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11
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Bazin D, Reguer S, Vantelon D, Haymann JP, Letavernier E, Frochot V, Daudon M, Esteve E, Colboc H. XANES spectroscopy for the clinician. CR CHIM 2022. [DOI: 10.5802/crchim.129] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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12
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Krupyanskii YF, Kovalenko VV, Loiko NG, Generalova AA, Moiseenko AV, Tereshkin EV, Sokolova OS, Tereshkina KB, El’-Registan GI, Popov AN. Architecture of Condensed DNA in the Nucleoid of Escherichia coli Bacterium. Biophysics (Nagoya-shi) 2022. [DOI: 10.1134/s0006350922040133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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13
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Mo L, Ma C, Wang Z, Li J, He W, Niu W, Chen Z, Zhou C, Liu Y. Integrated Bioinformatic Analysis of the Shared Molecular Mechanisms Between Osteoporosis and Atherosclerosis. Front Endocrinol (Lausanne) 2022; 13:950030. [PMID: 35937806 PMCID: PMC9353191 DOI: 10.3389/fendo.2022.950030] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Accepted: 06/22/2022] [Indexed: 11/30/2022] Open
Abstract
Background Osteoporosis and atherosclerosis are common in the elderly population, conferring a heavy worldwide burden. Evidence links osteoporosis and atherosclerosis but the exact underlying common mechanism of its occurrence is unclear. The purpose of this study is to further explore the molecular mechanism between osteoporosis and atherosclerosis through integrated bioinformatic analysis. Methods The microarray data of osteoporosis and atherosclerosis in the Gene Expression Omnibus (GEO) database were downloaded. The Weighted Gene Co-Expression Network Analysis (WGCNA) and differentially expressed genes (DEGs) analysis were used to identify the co-expression genes related to osteoporosis and atherosclerosis. In addition, the common gene targets of osteoporosis and atherosclerosis were analyzed and screened through three public databases (CTD, DISEASES, and GeneCards). Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analyses were performed by Metascape. Then, the common microRNAs (miRNAs) in osteoporosis and atherosclerosis were screened out from the Human microRNA Disease Database (HMDD) and the target genes of whom were predicted through the miRTarbase. Finally, the common miRNAs-genes network was constructed by Cytoscape software. Results The results of common genes analysis showed that immune and inflammatory response may be a common feature in the pathophysiology of osteoporosis and atherosclerosis. Six hub genes (namely, COL1A1, IBSP, CTSD, RAC2, MAF, and THBS1) were obtained via taking interaction of different analysis results. The miRNAs-genes network showed that has-let-7g might play an important role in the common mechanisms between osteoporosis and atherosclerosis. Conclusion This study provides new sights into shared molecular mechanisms between osteoporosis and atherosclerosis. These common pathways and hub genes may offer promising clues for further experimental studies.
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Affiliation(s)
- Liang Mo
- The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Chao Ma
- The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Zhangzheng Wang
- The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Jianxiong Li
- The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Wei He
- The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
- Guangdong Research Institute for Orthopedics and Traumatology of Chinese Medicine, Guangzhou, China
| | - Wei Niu
- The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Zhengqiu Chen
- The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Chi Zhou
- The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yuhao Liu
- The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
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14
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Fabrication and Characterization of Submicron-Scale Bovine Hydroxyapatite: A Top-Down Approach for a Natural Biomaterial. MATERIALS 2022; 15:ma15062324. [PMID: 35329775 PMCID: PMC8953508 DOI: 10.3390/ma15062324] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 03/14/2022] [Accepted: 03/19/2022] [Indexed: 02/04/2023]
Abstract
Submicron hydroxyapatite has been reported to have beneficial effects in bone tissue engineering. This study aimed to fabricate submicron-scale bovine hydroxyapatite (BHA) using the high-energy dry ball milling method. Bovine cortical bone was pretreated and calcined to produce BHA powder scaled in microns. BHA was used to fabricate submicron BHA with milling treatment for 3, 6, and 9 h and was characterized by using dynamic light scattering, scanning electron microscope connected with energy dispersive X-Ray spectroscopy, Fourier-transform infrared spectroscopy, and X-ray diffractometry to obtain its particle size, calcium-to-phosphorus (Ca/P) ratio, functional chemical group, and XRD peaks and crystallinity. Results showed that the particle size of BHA had a wide distribution range, with peaks from ~5 to ~10 µm. Milling treatment for 3, 6, and 9 h successfully gradually reduced the particle size of BHA to a submicron scale. The milled BHA's hydrodynamic size was significantly smaller compared to unmilled BHA. Milling treatment reduced the crystallinity of BHA. However, the treatment did not affect other characteristics; unmilled and milled BHA was shaped hexagonally, had carbonate and phosphate substitution groups, and the Ca/P ratio ranged from 1.48 to 1.68. In conclusion, the fabrication of submicron-scale BHA was successfully conducted using a high-energy dry ball milling method. The milling treatment did not affect the natural characteristics of BHA. Thus, the submicron-scale BHA may be potentially useful as a biomaterial for bone grafts.
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15
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Wu T, Huang L, Sun J, Sun J, Yan Q, Duan B, Zhang L, Shi B. Multifunctional chitin-based barrier membrane with antibacterial and osteogenic activities for the treatment of periodontal disease. Carbohydr Polym 2021; 269:118276. [PMID: 34294308 DOI: 10.1016/j.carbpol.2021.118276] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 05/07/2021] [Accepted: 05/28/2021] [Indexed: 10/21/2022]
Abstract
The guided tissue regeneration technique is an effective approach to repair periodontal defect. However, collagen barrier membranes used clinically lose stability easily, leading to soft tissue invasion, surgical site infection, and failure of osteogenesis. An ideal barrier membrane should possess proper antibacterial, osteoconductive activities, and favorable biodegradation. In this study, zinc oxide nanoparticles were homogeneously incorporated into the chitin hydrogel (ChT-1%ZnO) through one-step dissolution and regeneration method from alkaline/urea solution the first time. The remaining weights of ChT-1%ZnO in 150 μg/mL lysozyme solution was 52% after 5 weeks soaking. ChT-1%ZnO showed statistical antibacterial activities for P. gingivalis and S. aureus at 6 h, 12 h, and 24 h. Moreover, ChT-1%ZnO exhibits osteogenesis promotion in vitro, and it was further evaluated with rat periodontal defect model in vivo. The cemento-enamel junction value in ChT-1%ZnO group is 1.608 mm, presenting a statistical difference compared with no-membrane (1.825 mm) and ChT group (1.685 mm) after 8 weeks postoperatively.
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Affiliation(s)
- Tao Wu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST), Key Laboratory of Oral Biomedicine Ministry of Education, Department of Dental Implantology, School & Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan 430079, PR China.
| | - Lin Huang
- College of Chemistry and Molecular Sciences, Hubei Engineering Center of Natural Polymer-based Medical Materials, Wuhan University, Wuhan, Hubei 430072, PR China.
| | - Jing Sun
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST), Key Laboratory of Oral Biomedicine Ministry of Education, Department of Dental Implantology, School & Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan 430079, PR China.
| | - Jiahui Sun
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST), Key Laboratory of Oral Biomedicine Ministry of Education, Department of Dental Implantology, School & Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan 430079, PR China.
| | - Qi Yan
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST), Key Laboratory of Oral Biomedicine Ministry of Education, Department of Dental Implantology, School & Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan 430079, PR China
| | - Bo Duan
- College of Chemistry and Molecular Sciences, Hubei Engineering Center of Natural Polymer-based Medical Materials, Wuhan University, Wuhan, Hubei 430072, PR China.
| | - Lina Zhang
- College of Chemistry and Molecular Sciences, Hubei Engineering Center of Natural Polymer-based Medical Materials, Wuhan University, Wuhan, Hubei 430072, PR China.
| | - Bin Shi
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST), Key Laboratory of Oral Biomedicine Ministry of Education, Department of Dental Implantology, School & Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan 430079, PR China.
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16
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Ngueagni PT, Kumar PS, Woumfo ED, Abilarasu A, Joshiba GJ, Femina Carolin C, Prasannamedha G, Fotsing PN, Siewe M. Effectiveness of a biogenic composite derived from cattle horn core/iron nanoparticles via wet chemical impregnation for cadmium (II) removal in aqueous solution. CHEMOSPHERE 2021; 272:129806. [PMID: 33601206 DOI: 10.1016/j.chemosphere.2021.129806] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 01/19/2021] [Accepted: 01/26/2021] [Indexed: 06/12/2023]
Abstract
The objective of the current study was focused on the potential adsorption capability of a biogenic hydroxyapatite/iron nanoparticles-based composite tailored for the elimination of toxic pollutant, Cd(II) ions. Morphological along with physicochemical properties of composites were analyzed by different techniques including Scanning electron microscopy (SEM), Energy-dispersive X-ray spectroscopy (EDAX), X-ray diffraction (XRD), and Fourier Transform Infrared Spectroscopy (FTIR). It has been noticed an increase in cell parameters of prepared composites with an increase in the amount of nanoparticles. The best adsorbent was found to be the one with a 5% amount of nanoparticles (P400Fe(5%)). The kinetics studies have shown that the pseudo-first-order-models were in good agreement for the removal of Cd(II) ions onto P400Fe(5%) at any concentration, suggesting a physisorption mechanism. Besides, isotherms analysis has consistently revealed Freundlich as the model better explained the isotherm data, with a maximum removal capacity of 392.3 mg g-1, higher compared to many adsorbents. Thermodynamically, the removal adsorption process of Cd(II) ions onto the composite favorable, exothermic, and spontaneous. The regeneration study has been also investigated with reusability used until four cycles. The overall results pointed out the suitability and efficiency of the prepared biogenic composite for the elimination of metal pollutants in wastewater.
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Affiliation(s)
- P Tsopbou Ngueagni
- Laboratory of Applied Inorganic Chemistry, Faculty of Sciences, University of Yaoundé I, PO Box 812, Yaoundé, Cameroon; Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Rajiv Gandhi Salai (OMR), Kalavakkam, Chennai, 603 110, India
| | - P Senthil Kumar
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Rajiv Gandhi Salai (OMR), Kalavakkam, Chennai, 603 110, India; SSN-Centre for Radiation, Environmental Science and Technology (SSN-CREST), Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603110, India.
| | - E Djoufac Woumfo
- Laboratory of Applied Inorganic Chemistry, Faculty of Sciences, University of Yaoundé I, PO Box 812, Yaoundé, Cameroon.
| | - A Abilarasu
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Rajiv Gandhi Salai (OMR), Kalavakkam, Chennai, 603 110, India
| | - G Janet Joshiba
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Rajiv Gandhi Salai (OMR), Kalavakkam, Chennai, 603 110, India
| | - C Femina Carolin
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Rajiv Gandhi Salai (OMR), Kalavakkam, Chennai, 603 110, India
| | - G Prasannamedha
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Rajiv Gandhi Salai (OMR), Kalavakkam, Chennai, 603 110, India
| | - P Nkuigue Fotsing
- Laboratory of Applied Inorganic Chemistry, Faculty of Sciences, University of Yaoundé I, PO Box 812, Yaoundé, Cameroon
| | - M Siewe
- Laboratory of Applied Inorganic Chemistry, Faculty of Sciences, University of Yaoundé I, PO Box 812, Yaoundé, Cameroon
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17
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Sorrentino A, Malucelli E, Rossi F, Cappadone C, Farruggia G, Moscheni C, Perez-Berna AJ, Conesa JJ, Colletti C, Roveri N, Pereiro E, Iotti S. Calcite as a Precursor of Hydroxyapatite in the Early Biomineralization of Differentiating Human Bone-Marrow Mesenchymal Stem Cells. Int J Mol Sci 2021; 22:ijms22094939. [PMID: 34066542 PMCID: PMC8125725 DOI: 10.3390/ijms22094939] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 04/27/2021] [Accepted: 04/28/2021] [Indexed: 02/03/2023] Open
Abstract
Biomineralization is the process by which living organisms generate organized mineral crystals. In human cells, this phenomenon culminates with the formation of hydroxyapatite, which is a naturally occurring mineral form of calcium apatite. The mechanism that explains the genesis within the cell and the propagation of the mineral in the extracellular matrix still remains largely unexplained, and its characterization is highly controversial, especially in humans. In fact, up to now, biomineralization core knowledge has been provided by investigations on the advanced phases of this process. In this study, we characterize the contents of calcium depositions in human bone mesenchymal stem cells exposed to an osteogenic cocktail for 4 and 10 days using synchrotron-based cryo-soft-X-ray tomography and cryo-XANES microscopy. The reported results suggest crystalline calcite as a precursor of hydroxyapatite depositions within the cells in the biomineralization process. In particular, both calcite and hydroxyapatite were detected within the cell during the early phase of osteogenic differentiation. This striking finding may redefine most of the biomineralization models published so far, taking into account that they have been formulated using murine samples while studies in human cell lines are still scarce.
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Affiliation(s)
- Andrea Sorrentino
- Mistral Beamline, ALBA Synchrotron Light Source, Cerdanyola del Valles, 08290 Barcelona, Spain; (A.S.); (A.J.P.-B.); (J.J.C.); (E.P.)
| | - Emil Malucelli
- Department of Pharmacy and Biotechnology, University of Bologna, 40127 Bologna, Italy; (F.R.); (C.C.); (G.F.); (S.I.)
- Correspondence:
| | - Francesca Rossi
- Department of Pharmacy and Biotechnology, University of Bologna, 40127 Bologna, Italy; (F.R.); (C.C.); (G.F.); (S.I.)
| | - Concettina Cappadone
- Department of Pharmacy and Biotechnology, University of Bologna, 40127 Bologna, Italy; (F.R.); (C.C.); (G.F.); (S.I.)
| | - Giovanna Farruggia
- Department of Pharmacy and Biotechnology, University of Bologna, 40127 Bologna, Italy; (F.R.); (C.C.); (G.F.); (S.I.)
- National Institute of Biostructures and Biosystems, 00136 Rome, Italy
| | - Claudia Moscheni
- Department of Biomedical and Clinical Sciences “Luigi Sacco”, Università degli Studi di Milano, 20157 Milan, Italy;
| | - Ana J. Perez-Berna
- Mistral Beamline, ALBA Synchrotron Light Source, Cerdanyola del Valles, 08290 Barcelona, Spain; (A.S.); (A.J.P.-B.); (J.J.C.); (E.P.)
| | - Jose Javier Conesa
- Mistral Beamline, ALBA Synchrotron Light Source, Cerdanyola del Valles, 08290 Barcelona, Spain; (A.S.); (A.J.P.-B.); (J.J.C.); (E.P.)
| | - Chiara Colletti
- Chemical Center S.r.l, Granarolo dell’ Emilia, 40057 Bologna, Italy; (C.C.); (N.R.)
| | - Norberto Roveri
- Chemical Center S.r.l, Granarolo dell’ Emilia, 40057 Bologna, Italy; (C.C.); (N.R.)
| | - Eva Pereiro
- Mistral Beamline, ALBA Synchrotron Light Source, Cerdanyola del Valles, 08290 Barcelona, Spain; (A.S.); (A.J.P.-B.); (J.J.C.); (E.P.)
| | - Stefano Iotti
- Department of Pharmacy and Biotechnology, University of Bologna, 40127 Bologna, Italy; (F.R.); (C.C.); (G.F.); (S.I.)
- National Institute of Biostructures and Biosystems, 00136 Rome, Italy
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18
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Guduric V, Belton N, Richter RF, Bernhardt A, Spangenberg J, Wu C, Lode A, Gelinsky M. Tailorable Zinc-Substituted Mesoporous Bioactive Glass/Alginate-Methylcellulose Composite Bioinks. MATERIALS (BASEL, SWITZERLAND) 2021; 14:1225. [PMID: 33807758 PMCID: PMC7961332 DOI: 10.3390/ma14051225] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 02/26/2021] [Accepted: 03/03/2021] [Indexed: 12/17/2022]
Abstract
Bioactive glasses have been used for bone regeneration applications thanks to their excellent osteoconductivity, an osteostimulatory effect, and high degradation rate, releasing biologically active ions. Besides these properties, mesoporous bioactive glasses (MBG) are specific for their highly ordered mesoporous channel structure and high specific surface area, making them suitable for drug and growth factor delivery. In the present study, calcium (Ca) (15 mol%) in MBG was partially and fully substituted with zinc (Zn), known for its osteogenic and antimicrobial properties. Different MBG were synthesized, containing 0, 5, 10, or 15 mol% of Zn. Up to 7 wt.% of Zn-containing MBG could be mixed into an alginate-methylcellulose blend (algMC) while maintaining rheological properties suitable for 3D printing of scaffolds with sufficient shape fidelity. The suitability of these composites for bioprinting applications has been demonstrated with immortalized human mesenchymal stem cells. Uptake of Ca and phosphorus (P) (phosphate) ions by composite scaffolds was observed, while the released concentration of Zn2+ corresponded to the initial amount of this ion in prepared glasses, suggesting that it can be controlled at the MBG synthesis step. The study introduces a tailorable bioprintable material system suitable for bone tissue engineering applications.
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Affiliation(s)
- Vera Guduric
- Centre for Translational Bone, Joint and Soft Tissue Research, University Hospital Carl Gustav Carus and Faculty of Medicine, Technische Universität Dresden, 01307 Dresden, Germany; (V.G.); (N.B.); (R.F.R.); (A.B.); (J.S.); (A.L.)
| | - Niall Belton
- Centre for Translational Bone, Joint and Soft Tissue Research, University Hospital Carl Gustav Carus and Faculty of Medicine, Technische Universität Dresden, 01307 Dresden, Germany; (V.G.); (N.B.); (R.F.R.); (A.B.); (J.S.); (A.L.)
| | - Richard Frank Richter
- Centre for Translational Bone, Joint and Soft Tissue Research, University Hospital Carl Gustav Carus and Faculty of Medicine, Technische Universität Dresden, 01307 Dresden, Germany; (V.G.); (N.B.); (R.F.R.); (A.B.); (J.S.); (A.L.)
| | - Anne Bernhardt
- Centre for Translational Bone, Joint and Soft Tissue Research, University Hospital Carl Gustav Carus and Faculty of Medicine, Technische Universität Dresden, 01307 Dresden, Germany; (V.G.); (N.B.); (R.F.R.); (A.B.); (J.S.); (A.L.)
| | - Janina Spangenberg
- Centre for Translational Bone, Joint and Soft Tissue Research, University Hospital Carl Gustav Carus and Faculty of Medicine, Technische Universität Dresden, 01307 Dresden, Germany; (V.G.); (N.B.); (R.F.R.); (A.B.); (J.S.); (A.L.)
| | - Chengtie Wu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Dingxi Road 1295, Shanghai 200050, China;
| | - Anja Lode
- Centre for Translational Bone, Joint and Soft Tissue Research, University Hospital Carl Gustav Carus and Faculty of Medicine, Technische Universität Dresden, 01307 Dresden, Germany; (V.G.); (N.B.); (R.F.R.); (A.B.); (J.S.); (A.L.)
| | - Michael Gelinsky
- Centre for Translational Bone, Joint and Soft Tissue Research, University Hospital Carl Gustav Carus and Faculty of Medicine, Technische Universität Dresden, 01307 Dresden, Germany; (V.G.); (N.B.); (R.F.R.); (A.B.); (J.S.); (A.L.)
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Krupyanskii YF. Architecture of Nucleoid in the Dormant Cells of Escherichia coli. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B 2021. [DOI: 10.1134/s199079312102007x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Liu P, Li Z, Yuan L, Sun X, Zhou Y. Pourbaix-Guided Mineralization and Site-Selective Photoluminescence Properties of Rare Earth Substituted B-Type Carbonated Hydroxyapatite Nanocrystals. Molecules 2021; 26:molecules26030540. [PMID: 33494216 PMCID: PMC7864488 DOI: 10.3390/molecules26030540] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 01/17/2021] [Accepted: 01/18/2021] [Indexed: 12/17/2022] Open
Abstract
Rare-earth labeling in biological apatite could provide critical information for the pathologic transition (osteoclastic) and physiologic regeneration (osteogenesis) of bone and teeth because of their characteristic site-sensitive fluorescence in different coordinative conditions of various tissues in many biological processes. However, the rare-earth labeling method for biological apatites, i.e., carbonated-hydroxyapatite, has been rarely found in the literature. In this paper, we report a Pourbaix-diagram guided mineralizing strategy to controllable carbonation and doping of rare-earth ions in the hydroxyapatite (HA) lattice. The carbonation process of hydroxyapatite was achieved by controllable mineralization in hydrothermal condition with K2CO3 as the carbonate source, which results into the pure B-type carbonated hydroxyapatite (CHA) with tunable carbonate substitution degree. All of the as-synthesized materials crystalized into P63/m (No. 176) space group with the lattice parameter of a decreases and c increases with the increasing of carbonate content in the reactants. Structural refinement results revealed that the substitution of planar CO32− is superimposed on one of the faces of PO43− tetrahedral sub-units with a rotation angle of 30° in reference to c-axis. All of the hydrothermally synthesized CHA nanocrystals show hexagonal rod-like morphology with the length of 70–110 nm and diameter of 21–35 nm, and the decreasing length/diameter ratio from 3.61 to 2.96 from low to high carbonated level of the samples. Five rare-earth cations, of Pr3+, Sm3+, Eu3+, Tb3+, and Ho3+, were used as possible probe ions that can be doped into either HA or CHA lattice. The site-preference of Tb3+ doping is the same in the crystallographic site of HA and CHA according to characteristic emission peaks of 5D4–7Fj (j = 3–6) transitions in their photoluminescent spectroscopy. Our work provides a controllable carbonation method for rare-earth labeling hydroxyapatite nanomaterials with potential biologically active implant powders for bone repair and tissue regeneration.
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Affiliation(s)
- Peng Liu
- School of Stomatology, Jilin University, Changchun 130021, China; (P.L.); (Z.L.); (X.S.)
| | - Zhengqiang Li
- School of Stomatology, Jilin University, Changchun 130021, China; (P.L.); (Z.L.); (X.S.)
| | - Long Yuan
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, College of Physics, Jilin Normal University, Changchun 130103, China
- Correspondence: (L.Y.); (Y.Z.)
| | - Xiaolin Sun
- School of Stomatology, Jilin University, Changchun 130021, China; (P.L.); (Z.L.); (X.S.)
| | - Yanmin Zhou
- School of Stomatology, Jilin University, Changchun 130021, China; (P.L.); (Z.L.); (X.S.)
- Correspondence: (L.Y.); (Y.Z.)
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21
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Scattarella F, Altamura E, Albanese P, Siliqi D, Ladisa M, Mavelli F, Giannini C, Altamura D. Table-top combined scanning X-ray small angle scattering and transmission microscopies of lipid vesicles dispersed in free-standing gel. RSC Adv 2020; 11:484-492. [PMID: 35423036 PMCID: PMC8690998 DOI: 10.1039/d0ra08581b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Accepted: 12/04/2020] [Indexed: 12/15/2022] Open
Abstract
A mm thick free-standing gel containing lipid vesicles made of 2-oleoyl-1-palmitoyl-sn-glycero-3-phosphocholine (POPC) was studied by scanning Small Angle X-ray Scattering (SAXS) and X-ray Transmission (XT) microscopies. Raster scanning relatively large volumes, besides reducing the risk of radiation damage, allows signal integration, improving the signal-to-noise ratio (SNR), as well as high statistical significance of the dataset. The persistence of lipid vesicles in gel was demonstrated, while mapping their spatial distribution and concentration gradients. Information about lipid aggregation and packing, as well as about gel density gradients, was obtained. A posteriori confirmation of lipid presence in well-defined sample areas was obtained by studying the dried sample, featuring clear Bragg peaks from stacked bilayers. The comparison between wet and dry samples allowed it to be proved that lipids do not significantly migrate within the gel even upon drying, whereas bilayer curvature is lost by removing water, resulting in lipids packed in ordered lamellae. Suitable algorithms were successfully employed for enhancing transmission microscopy sensitivity to low absorbing objects, and allowing full SAXS intensity normalization as a general approach. In particular, data reduction includes normalization of the SAXS intensity against the local sample thickness derived from absorption contrast maps. The proposed study was demonstrated by a room-sized instrumentation, although equipped with a high brilliance X-ray micro-source, and is expected to be applicable to a wide variety of organic, inorganic, and multicomponent systems, including biomaterials. The employed routines for data reduction and microscopy, including Gaussian filter for contrast enhancement of low absorbing objects and a region growing segmentation algorithm to exclude no-sample regions, have been implemented and made freely available through the updated in-house developed software SUNBIM.
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Affiliation(s)
| | - Emiliano Altamura
- Chemistry Department University of Bari Aldo Moro via Orabona 4 70125 Bari Italy
| | - Paola Albanese
- Chemistry Department University of Bari Aldo Moro via Orabona 4 70125 Bari Italy
| | - Dritan Siliqi
- Istituto di Cristallografia - CNR Via Amendola 122/O 70126 Bari Italy
| | - Massimo Ladisa
- Istituto di Cristallografia - CNR Via Amendola 122/O 70126 Bari Italy
| | - Fabio Mavelli
- Chemistry Department University of Bari Aldo Moro via Orabona 4 70125 Bari Italy
| | - Cinzia Giannini
- Istituto di Cristallografia - CNR Via Amendola 122/O 70126 Bari Italy
| | - Davide Altamura
- Istituto di Cristallografia - CNR Via Amendola 122/O 70126 Bari Italy
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22
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Silva Barreto I, Le Cann S, Ahmed S, Sotiriou V, Turunen MJ, Johansson U, Rodriguez‐Fernandez A, Grünewald TA, Liebi M, Nowlan NC, Isaksson H. Multiscale Characterization of Embryonic Long Bone Mineralization in Mice. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:2002524. [PMID: 33173750 PMCID: PMC7610310 DOI: 10.1002/advs.202002524] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Indexed: 06/01/2023]
Abstract
Long bone mineralization occurs through endochondral ossification, where a cartilage template mineralizes into bone-like tissue with a hierarchical organization from the whole bone-scale down to sub-nano scale. Whereas this process has been extensively studied at the larger length scales, it remains unexplored at some of the smaller length scales. In this study, the changes in morphology, composition, and structure during embryonic mineralization of murine humeri are investigated using a range of high-resolution synchrotron-based imaging techniques at several length scales. With micro- and nanometer spatial resolution, the deposition of elements and the shaping of mineral platelets are followed. Rapid mineralization of the humeri occurs over approximately four days, where mineral to matrix ratio and calcium content in the most mineralized zone reach adult values shortly before birth. Interestingly, zinc is consistently found to be localized at the sites of ongoing new mineralization. The mineral platelets in the most recently mineralized regions are thicker, longer, narrower, and less aligned compared to those further into the mineralized region. In summary, this study demonstrates a specific spatial distribution of zinc, with highest concentration where new mineral is being deposited and that the newly formed mineral platelets undergo slight reshaping and reorganization during embryonic development.
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Affiliation(s)
| | - Sophie Le Cann
- Department of Biomedical EngineeringLund UniversityLund22100Sweden
| | - Saima Ahmed
- Department of BioengineeringImperial College LondonLondonSW72AZUK
| | - Vivien Sotiriou
- Department of BioengineeringImperial College LondonLondonSW72AZUK
| | - Mikael J. Turunen
- Department of Applied PhysicsUniversity of Eastern FinlandKuopio70211Finland
| | | | | | | | - Marianne Liebi
- Department of PhysicsChalmers University of TechnologyGothenburg41296Sweden
| | - Niamh C. Nowlan
- Department of BioengineeringImperial College LondonLondonSW72AZUK
| | - Hanna Isaksson
- Department of Biomedical EngineeringLund UniversityLund22100Sweden
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23
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Tovani CB, Oliveira TM, Soares MPR, Nassif N, Fukada SY, Ciancaglini P, Gloter A, Ramos AP. Strontium Calcium Phosphate Nanotubes as Bioinspired Building Blocks for Bone Regeneration. ACS APPLIED MATERIALS & INTERFACES 2020; 12:43422-43434. [PMID: 32876428 DOI: 10.1021/acsami.0c12434] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Calcium phosphate (CaP)-based ceramics are the most investigated materials for bone repairing and regeneration. However, the clinical performance of commercial ceramics is still far from that of the native tissue, which remains as the gold standard. Thus, reproducing the structural architecture and composition of bone matrix should trigger biomimetic response in synthetic materials. Here, we propose an innovative strategy based on the use of track-etched membranes as physical confinement to produce collagen-free strontium-substituted CaP nanotubes that tend to mimic the building block of bone, i.e., the mineralized collagen fibrils. A combination of high-resolution microscopic and spectroscopic techniques revealed the underlying mechanisms driving the nanotube formation. Under confinement, poorly crystalline apatite platelets assembled into tubes that resembled the mineralized collagen fibrils in terms of diameter and structure of bioapatite. Furthermore, the synergetic effect of Sr2+ and confinement gave rise to the stabilization of amorphous strontium CaP nanotubes. The nanotubes were tested in long-term culture of osteoblasts, supporting their maturation and mineralization without eliciting any cytotoxicity. Sr2+ released from the particles reduced the differentiation and activity of osteoclasts in a Sr2+ concentration-dependent manner. Their bioactivity was evaluated in a serum-like solution, showing that the particles spatially guided the biomimetic remineralization. Further, these effects were achieved at strikingly low concentrations of Sr2+ that is crucial to avoid side effects. Overall, these results open simple and promising pathways to develop a new generation of CaP multifunctional ceramics that are active in tissue regeneration and able to simultaneously induce biomimetic remineralization and control the imbalanced osteoclast activity responsible for bone density loss.
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Affiliation(s)
- Camila B Tovani
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP 14040-901, Brazil
| | - Tamires M Oliveira
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP 14040-901, Brazil
| | - Mariana P R Soares
- Departamento de Ciências Biomoleculares, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP 14040-901, Brazil
| | - Nadine Nassif
- Sorbonne Université, CNRS, Collège de France, Laboratoire de Chimie de la Matière Condensée de Paris, 4 Place Jussieu, F-75005 Paris, France
| | - Sandra Y Fukada
- Departamento de Ciências Biomoleculares, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP 14040-901, Brazil
| | - Pietro Ciancaglini
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP 14040-901, Brazil
| | - Alexandre Gloter
- Laboratoire de Physique des Solides, Université Paris-Saclay, 91405 Orsay, France
| | - Ana P Ramos
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP 14040-901, Brazil
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Monitoring matrix remodeling in the cellular microenvironment using microrheology for complex cellular systems. Acta Biomater 2020; 111:254-266. [PMID: 32434077 DOI: 10.1016/j.actbio.2020.04.053] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 04/24/2020] [Accepted: 04/28/2020] [Indexed: 12/12/2022]
Abstract
Multiple particle tracking (MPT) microrheology was employed for monitoring the development of extracellular matrix (ECM) mechanical properties in the direct microenvironment of living cells. A customized setup enabled us to overcome current limitations: (i) Continuous measurements were enabled using a cell culture chamber, with this, matrix remodeling by fibroblasts in the heterogeneous environment of macroporous scaffolds was monitored continuously. (ii) Employing tracer laden porous scaffolds for seeding human mesenchymal stem cells (hMSCs), we followed conventional differentiation protocols. Thus, we were, for the first time able to study the massive alterations in ECM elasticity during hMSC differentiation. (iii) MPT measurements in 2D cell cultures were enabled using a long distance objective. Exemplarily, local mechanical properties of the ECM in human umbilical vein endothelial cell (HUVEC) cultures, that naturally form 2D layers, were investigated scaffold-free. Using our advanced setup, we measured local, apparent elastic moduli G0,app in a range between 0.08 and 60 Pa. For fibroblasts grown in collagen-based scaffolds, a continuous decrease of local matrix elasticity resulted during the first 10 hours after seeding. The osteogenic differentiation of hMSC cells cultivated in similar scaffolds, led to an increase of G0,app by 100 %, whereas after adipogenic differentiation it was reduced by 80 %. The local elasticity of ECM that was newly secreted by HUVECs increased significantly upon addition of protease inhibitor and in high glucose conditions even a twofold increase in G0,app was observed. The combination of these advanced methods opens up new avenues for a broad range of investigations regarding cell-matrix interactions and the propagation of ECM mechanical properties in complex biological systems. STATEMENT OF SIGNIFICANCE: Cells sense the elasticity of their environment on a micrometer length scale. For studying the local elasticity of extracellular matrix (ECM) in the direct environment of living cells, we employed an advanced multipleparticle tracking microrheology setup. MPT is based on monitoring the Brownian motion oftracer particles, which is restricted by the surrounding network. Network elasticity can thusbe quantified. Overcoming current limitations, we realized continuous investigations of ECM elasticityduring fibroblast growth. Furthermore, MPT measurements of stem cell ECM showed ECMstiffening during osteogenic differentiation and softening during adipogenic differentiation.Finally, we characterized small amounts of delicate ECM newly secreted in scaffold-freecultures of endothelial cells, that naturally form 2D layers.
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