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Sperber J, Zachem TJ, Prakash R, Owolo E, Yamamoto K, Nguyen AD, Hockenberry H, Ross WA, Herndon JE, Codd PJ, Goodwin CR. A blinded study using laser induced endogenous fluorescence spectroscopy to differentiate ex vivo spine tumor, healthy muscle, and healthy bone. Sci Rep 2024; 14:1921. [PMID: 38253556 PMCID: PMC10803777 DOI: 10.1038/s41598-023-50995-4] [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: 07/11/2023] [Accepted: 12/28/2023] [Indexed: 01/24/2024] Open
Abstract
Ten patients undergoing surgical resection for spinal tumors were selected. Samples of tumor, muscle, and bone were resected, de-identified by the treating surgeon, and then scanned with the TumorID technology ex vivo. This study investigates whether TumorID technology is able to differentiate three different human clinical fresh tissue specimens: spine tumor, normal muscle, and normal bone. The TumorID technology utilizes a 405 nm excitation laser to target endogenous fluorophores, thereby allowing for the detection of tissue based on emission spectra. Metabolic profiles of tumor and healthy tissue vary, namely NADH (bound and free emission peak, respectively: 487 nm, 501 nm) and FAD (emission peak: 544) are endogenous fluorophores with distinct concentrations in tumor and healthy tissue. Emission spectra analyzed consisted of 74 scans of spine tumor, 150 scans of healthy normal bone, and 111 scans of healthy normal muscle. An excitation wavelength of 405 nm was used to obtain emission spectra from tissue as previously described. Emission spectra consisted of approximately 1400 wavelength intensity pairs between 450 and 750 nm. Kruskal-Wallis tests were conducted comparing AUC distributions for each treatment group, α = 0.05. Spectral signatures varied amongst the three different tissue types. All pairwise comparisons among tissues for Free NADH were statistically significant (Tumor vs. Muscle: p = 0.0006, Tumor vs. Bone: p < 0.0001, Bone vs. Muscle: p = 0.0357). The overall comparison of tissues for FAD (506.5-581.5 nm) was also statistically significant (p < 0.0001), with two pairwise comparisons being statistically significant (Tumor vs. Muscle: p < 0.0001, Tumor vs. Bone: p = 0.0045, Bone vs. Muscle: p = 0.249). These statistically significant differences were maintained when stratifying tumor into metastatic carcinoma (N = 57) and meningioma (N = 17). TumorID differentiates tumor tissue from normal bone and normal muscle providing further clinical evidence of its efficacy as a tissue identification tool. Future studies should evaluate TumorID's ability to serve as an adjunctive tool for intraoperative assessment of surgical margins and surgical decision-making.
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Affiliation(s)
- Jacob Sperber
- Department of Neurosurgery, Duke University School of Medicine, Durham, USA
| | - Tanner J Zachem
- Department of Neurosurgery, Duke University School of Medicine, Durham, USA
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, USA
| | - Ravi Prakash
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, USA
| | - Edwin Owolo
- Department of Neurosurgery, Duke University School of Medicine, Durham, USA
| | - Kent Yamamoto
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, USA
| | - Annee D Nguyen
- Department of Neurosurgery, Duke University School of Medicine, Durham, USA
| | | | - Weston A Ross
- Department of Neurosurgery, Duke University School of Medicine, Durham, USA
| | - James E Herndon
- Department of Biostatistics & Bioinformatics, Duke University School of Medicine, Durham, USA
| | - Patrick J Codd
- Department of Neurosurgery, Duke University School of Medicine, Durham, USA
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, USA
- Duke Cancer Institute, Duke University Medical Center, 200 Trent Drive DUMC 3807, Durham, NC, 27710, USA
| | - C Rory Goodwin
- Department of Neurosurgery, Duke University School of Medicine, Durham, USA.
- Duke Cancer Institute, Duke University Medical Center, 200 Trent Drive DUMC 3807, Durham, NC, 27710, USA.
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Palander A, Fauch L, Turunen MJ, Dekker H, Schulten EAJM, Koistinen A, Bravenboer N, Kullaa A. Molecular Quantity Variations in Human-Mandibular-Bone Osteoid. Calcif Tissue Int 2022; 111:547-558. [PMID: 35978052 PMCID: PMC9613710 DOI: 10.1007/s00223-022-01017-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 07/26/2022] [Indexed: 11/29/2022]
Abstract
Osteoid is a layer of new-formed bone that is deposited on the bone border during the process of new bone formation. This deposition process is crucial for bone tissue, and flaws in it can lead to bone diseases. Certain bone diseases, i.e. medication related osteonecrosis, are overexpressed in mandibular bone. Because mandibular bone presents different properties than other bone types, the data concerning osteoid formation in other bones are inapplicable for human-mandibular bone. Previously, the molecular distribution of other bone types has been presented using Fourier-transform infrared (FTIR) spectroscopy. However, the spatial distribution of molecular components of healthy-human-mandibular-bone osteoid in relation to histologic landmarks has not been previously presented and needs to be studied in order to understand diseases that occur human-mandibular bone. This study presents for the first time the variation in molecular distribution inside healthy-human-mandibular-bone osteoid by juxtaposing FTIR data with its corresponding histologic image obtained by autofluorescence imaging of its same bone section. During new bone formation, bone-forming cells produce an osteoid constituted primarily of type I collagen. It was observed that in mandibular bone, the collagen type I increases from the osteoblast line with the distance from the osteoblasts, indicating progressive accumulation of collagen during osteoid formation. Only later inside the collagen matrix, the osteoid starts to mineralize. When the mineralization starts, the collagen accumulation diminishes whereas the collagen maturation still continues. This chemical-apposition process in healthy mandibular bone will be used in future as a reference to understand different pathologic conditions that occur in human-mandibular bone.
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Affiliation(s)
- Anni Palander
- Institute of Dentistry, University of Eastern Finland, Yliopistonranta 1, Kuopio, 70210, Finland.
| | - Laure Fauch
- SIB Labs, University of Eastern Finland, Yliopistonranta 1, Kuopio, 70210, Finland
| | - Mikael J Turunen
- Department of Applied Physics, University of Eastern Finland, Yliopistonranta 1, Kuopio, 70210, Finland
| | - Hannah Dekker
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam UMC and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, De Boelelaan, Amsterdam, 1117, The Netherlands
| | - Engelbert A J M Schulten
- Department of Oral and Maxillofacial Surgery/Oral Pathology, Amsterdam UMC and Academic Centre for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, De Boelelaan, Amsterdam, 1117, The Netherlands
| | - Arto Koistinen
- SIB Labs, University of Eastern Finland, Yliopistonranta 1, Kuopio, 70210, Finland
| | - Nathalie Bravenboer
- Department of Clinical Chemistry, Amsterdam UMC, Vrije Universiteit Amsterdam, De Boelelaan, Amsterdam, 1117, The Netherlands
- Division of Endocrinology and Center for Bone Quality, Department of Internal Medicine, Leiden University Medical Center, PO Box 9500, Leiden, The Netherlands
| | - Arja Kullaa
- Institute of Dentistry, University of Eastern Finland, Yliopistonranta 1, Kuopio, 70210, Finland
- SIB Labs, University of Eastern Finland, Yliopistonranta 1, Kuopio, 70210, Finland
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Piriou M, Lorenzo C, Raymond-Letron I, Coronas-Dupuis S, Pieruccioni L, Rouquette J, Guissard C, Chaumont J, Casteilla L, Planat-Benard V, Kemoun P, Monsarrat P. A Spectral Principal Component Analysis-Based Framework for Composite Hard/Soft Tissue Fluorescence Image Investigation. Front Physiol 2022; 13:899626. [PMID: 35910575 PMCID: PMC9325997 DOI: 10.3389/fphys.2022.899626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Accepted: 06/06/2022] [Indexed: 11/25/2022] Open
Abstract
Traditional thin sectioning microscopy of large bone and dental tissue samples using demineralization may disrupt structure morphologies and even damage soft tissues, thus compromising the histopathological investigation. Here, we developed a synergistic and original framework on thick sections based on wide-field multi-fluorescence imaging and spectral Principal Component Analysis (sPCA) as an alternative, fast, versatile, and reliable solution, suitable for highly mineralized tissue structure sustain and visualization. Periodontal 2-mm thick sections were stained with a solution containing five fluorescent dyes chosen for their ability to discriminate close tissues, and acquisitions were performed with a multi-zoom macroscope for blue, green, red, and NIR (near-infrared) emissions. Eigen-images derived from both standard scaler (Std) and Contrast Limited Adaptive Histogram Equalization (Clahe) pre-preprocessing significantly enhanced tissue contrasts, highly suitable for histopathological investigation with an in-depth detail for sub-tissue structure discrimination. Using this method, it is possible to preserve and delineate accurately the different anatomical/morphological features of the periodontium, a complex tooth-supporting multi-tissue. Indeed, we achieve characterization of gingiva, alveolar bone, cementum, and periodontal ligament tissues. The ease and adaptability of this approach make it an effective method for providing high-contrast features that are not usually available in standard staining histology. Beyond periodontal investigations, this first proof of concept of an sPCA solution for optical microscopy of complex structures, especially including mineralized tissues opens new perspectives to deal with other chronic diseases involving complex tissue and organ defects. Overall, such an imaging framework appears to be a novel and convenient strategy for optical microscopy investigation.
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Affiliation(s)
- Marie Piriou
- Dental Faculty and Hospital of Toulouse—Toulouse Institute of Oral Medicine and Science, CHU de Toulouse, Toulouse, France
| | - Corinne Lorenzo
- Restore Research Center, Université de Toulouse, INSERM 1301, CNRS 5070, EFS, ENVT, Toulouse, France
| | - Isabelle Raymond-Letron
- Restore Research Center, Université de Toulouse, INSERM 1301, CNRS 5070, EFS, ENVT, Toulouse, France
- LabHPEC, Université de Toulouse, ENVT (Ecole Nationale Vétérinaire de Toulouse), Toulouse, France
| | - Sophie Coronas-Dupuis
- Restore Research Center, Université de Toulouse, INSERM 1301, CNRS 5070, EFS, ENVT, Toulouse, France
- LabHPEC, Université de Toulouse, ENVT (Ecole Nationale Vétérinaire de Toulouse), Toulouse, France
| | - Laetitia Pieruccioni
- Restore Research Center, Université de Toulouse, INSERM 1301, CNRS 5070, EFS, ENVT, Toulouse, France
| | - Jacques Rouquette
- Restore Research Center, Université de Toulouse, INSERM 1301, CNRS 5070, EFS, ENVT, Toulouse, France
| | - Christophe Guissard
- Dental Faculty and Hospital of Toulouse—Toulouse Institute of Oral Medicine and Science, CHU de Toulouse, Toulouse, France
- Restore Research Center, Université de Toulouse, INSERM 1301, CNRS 5070, EFS, ENVT, Toulouse, France
| | - Jade Chaumont
- Dental Faculty and Hospital of Toulouse—Toulouse Institute of Oral Medicine and Science, CHU de Toulouse, Toulouse, France
| | - Louis Casteilla
- Restore Research Center, Université de Toulouse, INSERM 1301, CNRS 5070, EFS, ENVT, Toulouse, France
| | - Valérie Planat-Benard
- Restore Research Center, Université de Toulouse, INSERM 1301, CNRS 5070, EFS, ENVT, Toulouse, France
| | - Philippe Kemoun
- Dental Faculty and Hospital of Toulouse—Toulouse Institute of Oral Medicine and Science, CHU de Toulouse, Toulouse, France
- Restore Research Center, Université de Toulouse, INSERM 1301, CNRS 5070, EFS, ENVT, Toulouse, France
| | - Paul Monsarrat
- Dental Faculty and Hospital of Toulouse—Toulouse Institute of Oral Medicine and Science, CHU de Toulouse, Toulouse, France
- Restore Research Center, Université de Toulouse, INSERM 1301, CNRS 5070, EFS, ENVT, Toulouse, France
- Artificial and Natural Intelligence Toulouse Institute ANITI, Toulouse, France
- *Correspondence: Paul Monsarrat,
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Nikovics K, Durand M, Castellarin C, Burger J, Sicherre E, Collombet JM, Oger M, Holy X, Favier AL. Macrophages Characterization in an Injured Bone Tissue. Biomedicines 2022; 10:biomedicines10061385. [PMID: 35740407 PMCID: PMC9219779 DOI: 10.3390/biomedicines10061385] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 06/08/2022] [Indexed: 11/16/2022] Open
Abstract
Biomaterial use is a promising approach to facilitate wound healing of the bone tissue. Biomaterials induce the formation of membrane capsules and the recruitment of different types of macrophages. Macrophages are immune cells that produce diverse combinations of cytokines playing an important role in bone healing and regeneration, but the exact mechanism remains to be studied. Our work aimed to identify in vivo macrophages in the Masquelet induced membrane in a rat model. Most of the macrophages in the damaged area were M2-like, with smaller numbers of M1-like macrophages. In addition, high expression of IL-1β and IL-6 cytokines were detected in the membrane region by RT-qPCR. Using an innovative combination of two hybridization techniques (in situ hybridization and in situ hybridization chain reaction (in situ HCR)), M2b-like macrophages were identified for the first time in cryosections of non-decalcified bone. Our work has also demonstrated that microspectroscopical analysis is essential for macrophage characterization, as it allows the discrimination of fluorescence and autofluorescence. Finally, this work has revealed the limitations of immunolabelling and the potential of in situ HCR to provide valuable information for in vivo characterization of macrophages.
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Affiliation(s)
- Krisztina Nikovics
- Imagery Unit, Department of Platforms and Technology Research, French Armed Forces Biomedical Research Institute, 91223 Brétigny-sur-Orge, France; (C.C.); (E.S.); (M.O.); (A.-L.F.)
- Correspondence: or ; Tel.: +33-(0)-1-78-65-13-331
| | - Marjorie Durand
- Osteo-Articulary Biotherapy Unit, Department of Medical and Surgical Assistance to the Armed Forces, French Armed Forces Biomedical Research Institute, 91223 Brétigny-sur-Orge, France; (M.D.); (J.-M.C.)
| | - Cédric Castellarin
- Imagery Unit, Department of Platforms and Technology Research, French Armed Forces Biomedical Research Institute, 91223 Brétigny-sur-Orge, France; (C.C.); (E.S.); (M.O.); (A.-L.F.)
| | - Julien Burger
- Microbiology and Infectious Diseases Department, French Armed Forces Biomedical Research Institute, 91223 Brétigny-sur-Orge, France;
| | - Emma Sicherre
- Imagery Unit, Department of Platforms and Technology Research, French Armed Forces Biomedical Research Institute, 91223 Brétigny-sur-Orge, France; (C.C.); (E.S.); (M.O.); (A.-L.F.)
| | - Jean-Marc Collombet
- Osteo-Articulary Biotherapy Unit, Department of Medical and Surgical Assistance to the Armed Forces, French Armed Forces Biomedical Research Institute, 91223 Brétigny-sur-Orge, France; (M.D.); (J.-M.C.)
| | - Myriam Oger
- Imagery Unit, Department of Platforms and Technology Research, French Armed Forces Biomedical Research Institute, 91223 Brétigny-sur-Orge, France; (C.C.); (E.S.); (M.O.); (A.-L.F.)
| | - Xavier Holy
- Department of Platforms and Technology Research, French Armed Forces Biomedical Research Institute, 91223 Brétigny-sur-Orge, France;
| | - Anne-Laure Favier
- Imagery Unit, Department of Platforms and Technology Research, French Armed Forces Biomedical Research Institute, 91223 Brétigny-sur-Orge, France; (C.C.); (E.S.); (M.O.); (A.-L.F.)
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In Situ Gene Expression in Native Cryofixed Bone Tissue. Biomedicines 2022; 10:biomedicines10020484. [PMID: 35203694 PMCID: PMC8962289 DOI: 10.3390/biomedicines10020484] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 02/09/2022] [Accepted: 02/15/2022] [Indexed: 01/21/2023] Open
Abstract
Bone is a very complex tissue that is constantly changing throughout the lifespan. The precise mechanism of bone regeneration remains poorly understood. Large bone defects can be caused by gunshot injury, trauma, accidents, congenital anomalies and tissue resection due to cancer. Therefore, understanding bone homeostasis and regeneration has considerable clinical and scientific importance in the development of bone therapy. Macrophages are well known innate immune cells secreting different combinations of cytokines and their role in bone regeneration during bone healing is essential. Here, we present a method to identify mRNA transcripts in cryosections of non-decalcified rat bone using in situ hybridization and hybridization chain reaction to explore gene expression in situ for better understanding the gene expression of the bone tissues.
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