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Mauroux A, Gofflo S, Breugnot J, Malbouyres M, Atlas Y, Ardidie-Robouant C, Marchand L, Monnot C, Germain S, Bordes S, Closs B, Ruggiero F, Muller L. Angiogenesis and full thickness wound repair in a cell sheet-based vascularized skin substitute. Acta Biomater 2024; 187:123-137. [PMID: 39182802 DOI: 10.1016/j.actbio.2024.08.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 08/05/2024] [Accepted: 08/16/2024] [Indexed: 08/27/2024]
Abstract
Skin tissue engineering is undergoing tremendous expansion as a result from clinical needs, mandatory replacement of animal models and development of new technologies. Many approaches have been used to produce vascularized skin substitutes for grafting purposes showing the presence of capillary-like structures but with limited analysis of their in vitro maturation and plasticity. Such knowledge is however important for the development of tissue substitutes with improved implantation success as well as for validation of vascularization in vitro models, including as a readout in pharmacological analyses. For optimal interactions of cells with microenvironment and vasculature, we here used a cell sheet approach consisting in the sole production of matrix by the cells. In this context, we limited the density of endothelial cells seeded for self-assembly and rather relied on the stimulation of angiogenesis for the development of an extensive connected microvascular-like network. After detailed characterization of this network, we challenged its plasticity both during and after establishment of the skin substitute. We show that fine tuning of VEGF concentration and time of application differentially affects formation of capillary-like structures and their perivascular coverage. Furthermore, we performed a deep wound assay that displayed tissue repair and angiogenesis with unique characteristics of the physiological process. These studies demonstrate the importance of cell-derived microenvironment for the establishment of mature yet dynamic vascularized skin models allowing a wide range of pharmacological and basic investigations. STATEMENT OF SIGNIFICANCE: The significant advancements in organ-on-chips and tissue engineering call for more relevant models including microvascularization with remodeling potential. While vascularized skin substitutes have been developed for years, focus has primarily been on the impact of microvascularization on implantation rather than on its in vitro characterization. We here developed a cell sheet-based vascularized skin substitute relying on angiogenesis, i.e. growth of vessel-like structures within the 3D model, rather than solely on endothelial cell self-assembly. We then characterized :1/ vascularization after modulation of angiogenic factor VEGF during the substitute construction; -2/ angiogenesis associated to tissue repair after deep mechanical wounding. These studies establish a solid physiologically relevant model for further investigation of skin cell interactions and in vitro wound healing.
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Affiliation(s)
- Adèle Mauroux
- Center for Interdisciplinary Research in Biology (CIRB), College de France - CNRS, INSERM, Université PSL, 11 Place Marcelin Berthelot, 75005 Paris, France; R&D Department, SILAB, ZI de la Nau, 19240 Saint Viance, France; Institut de Génomique Fonctionnelle de Lyon (IGFL), ENS de Lyon, CNRS, Univ Lyon 1, 32-34 Avenue Tony Garnier, 69007 Lyon, France; Sorbonne Université, Collège doctoral, 15 rue de l'Ecole de Médecine, 75006 Paris, France
| | - Sandrine Gofflo
- R&D Department, SILAB, ZI de la Nau, 19240 Saint Viance, France
| | | | - Marilyne Malbouyres
- Institut de Génomique Fonctionnelle de Lyon (IGFL), ENS de Lyon, CNRS, Univ Lyon 1, 32-34 Avenue Tony Garnier, 69007 Lyon, France
| | - Yoann Atlas
- Center for Interdisciplinary Research in Biology (CIRB), College de France - CNRS, INSERM, Université PSL, 11 Place Marcelin Berthelot, 75005 Paris, France; Sorbonne Université, Collège doctoral, 15 rue de l'Ecole de Médecine, 75006 Paris, France
| | - Corinne Ardidie-Robouant
- Center for Interdisciplinary Research in Biology (CIRB), College de France - CNRS, INSERM, Université PSL, 11 Place Marcelin Berthelot, 75005 Paris, France
| | | | - Catherine Monnot
- Center for Interdisciplinary Research in Biology (CIRB), College de France - CNRS, INSERM, Université PSL, 11 Place Marcelin Berthelot, 75005 Paris, France
| | - Stéphane Germain
- Center for Interdisciplinary Research in Biology (CIRB), College de France - CNRS, INSERM, Université PSL, 11 Place Marcelin Berthelot, 75005 Paris, France
| | - Sylvie Bordes
- R&D Department, SILAB, ZI de la Nau, 19240 Saint Viance, France
| | - Brigitte Closs
- R&D Department, SILAB, ZI de la Nau, 19240 Saint Viance, France
| | - Florence Ruggiero
- Institut de Génomique Fonctionnelle de Lyon (IGFL), ENS de Lyon, CNRS, Univ Lyon 1, 32-34 Avenue Tony Garnier, 69007 Lyon, France
| | - Laurent Muller
- Center for Interdisciplinary Research in Biology (CIRB), College de France - CNRS, INSERM, Université PSL, 11 Place Marcelin Berthelot, 75005 Paris, France.
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Zong T, Mu T, Tan C, Xie T, Zhuang M, Wang Y, Li Z, Yang Q, Wu M, Cai J, Wang X, Yao Y. Tenascin-C induces transdifferentiation of retinal pigment epithelial cells in proliferative vitreoretinopathy. Exp Eye Res 2024; 248:110097. [PMID: 39284505 DOI: 10.1016/j.exer.2024.110097] [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: 04/10/2024] [Revised: 08/27/2024] [Accepted: 09/13/2024] [Indexed: 09/22/2024]
Abstract
Proliferation and transdifferentiation of the retinal pigment epithelium (RPE) are hallmarks of proliferative vitreoretinopathy (PVR); however, the critical regulators of this process remain to be elucidated. Here, we investigated the role of tenascin-C in PVR development. In vitro, exposure of human ARPE-19 (hRPE) cells to TGF-β2 increased tenascin-C expression. Tenascin-C was shown to be involved in TGF-β2-induced transdifferentiation of hRPE cells, which was inhibited by pretreatment with tenascin-C siRNA. In PVR mouse models, a marked increase in the expression of tenascin-C mRNA and protein was observed. Additionally, immunofluorescence analysis demonstrated a dramatic increase in the colocalization of tenascin-C with RPE65 or α-smooth muscle actin(α-SMA) in the epiretinal membranes of patients with PVR. There was also abundant expression of integrin αV and β-catenin in the PVR membranes. ICG-001, a β-catenin inhibitor, efficiently attenuated PVR progression in a PVR animal model. These findings suggest that tenascin-C is secreted by transdifferentiated RPE cells and promotes the development of PVR via the integrin αV and β-catenin pathways. Therefore, tenascin-C could be a potential therapeutic target for the inhibition of epiretinal membrane development associated with PVR.
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Affiliation(s)
- Tianyi Zong
- Department of Ophthalmology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi Medical Center, Nanjing Medical University, Wuxi People's Hospital, 299 Qingyang Road, Wuxi, Jiangsu. 214023, People's Republic of China
| | - Tong Mu
- Department of Ophthalmology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi Medical Center, Nanjing Medical University, Wuxi People's Hospital, 299 Qingyang Road, Wuxi, Jiangsu. 214023, People's Republic of China
| | - Chengye Tan
- Department of Ophthalmology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi Medical Center, Nanjing Medical University, Wuxi People's Hospital, 299 Qingyang Road, Wuxi, Jiangsu. 214023, People's Republic of China
| | - Tianhua Xie
- Department of Ophthalmology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi Medical Center, Nanjing Medical University, Wuxi People's Hospital, 299 Qingyang Road, Wuxi, Jiangsu. 214023, People's Republic of China
| | - Miao Zhuang
- Department of Ophthalmology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi Medical Center, Nanjing Medical University, Wuxi People's Hospital, 299 Qingyang Road, Wuxi, Jiangsu. 214023, People's Republic of China
| | - Yan Wang
- Department of Ophthalmology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi Medical Center, Nanjing Medical University, Wuxi People's Hospital, 299 Qingyang Road, Wuxi, Jiangsu. 214023, People's Republic of China
| | - Ziwen Li
- Department of Ophthalmology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi Medical Center, Nanjing Medical University, Wuxi People's Hospital, 299 Qingyang Road, Wuxi, Jiangsu. 214023, People's Republic of China
| | - Qian Yang
- Department of Ophthalmology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi Medical Center, Nanjing Medical University, Wuxi People's Hospital, 299 Qingyang Road, Wuxi, Jiangsu. 214023, People's Republic of China; Center of Clinical Research, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi Medical Center, Nanjing Medical University, Wuxi People's Hospital, 299 Qingyang Road, Wuxi, Jiangsu, 214023, People's Republic of China
| | - Meili Wu
- Center of Clinical Research, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi Medical Center, Nanjing Medical University, Wuxi People's Hospital, 299 Qingyang Road, Wuxi, Jiangsu, 214023, People's Republic of China
| | - Jiping Cai
- Department of Ophthalmology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi Medical Center, Nanjing Medical University, Wuxi People's Hospital, 299 Qingyang Road, Wuxi, Jiangsu. 214023, People's Republic of China
| | - Xiaolu Wang
- Center of Clinical Research, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi Medical Center, Nanjing Medical University, Wuxi People's Hospital, 299 Qingyang Road, Wuxi, Jiangsu, 214023, People's Republic of China.
| | - Yong Yao
- Department of Ophthalmology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi Medical Center, Nanjing Medical University, Wuxi People's Hospital, 299 Qingyang Road, Wuxi, Jiangsu. 214023, People's Republic of China.
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Xiang W, Guo Z, Zhang Y, Xu Y. The Role of Tenascin-C in Hypertrophic Scar Formation: Insights from Cell and Animal Experiments. Clin Cosmet Investig Dermatol 2024; 17:1637-1648. [PMID: 39045340 PMCID: PMC11264284 DOI: 10.2147/ccid.s461760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Accepted: 06/23/2024] [Indexed: 07/25/2024]
Abstract
Background Hypertrophic scars (HS) are dermal diseases characterized by excessive fibroblast proliferation and collagen deposition following burns or trauma. While Tenascin-C (TNC)'s role in promoting visceral fibrosis has been established, its impact on skin tissue fibrosis remains unclear. This study aims to investigate the effects of TNC on HS. Methods RNA sequence and IHC techniques were used to examine the upregulation of TNC gene in human hypertrophic scar tissue compared to normal tissues. Knockdown of TNC in Human skin fibroblasts (HFF-1) cells was achieved, and expression of Col1 and Col3 was evaluated using qPCR. Sirius red collagen staining assessed impact on total collagen content and ECM deposition. Effects on cell proliferation and migration were investigated through cck-8 and cell scratch experiments. Lentivirus infection was used to knock out TNC, and resulting samples were injected into ear wound of rabbits. Effects of TNC knockout on ear scar formation were measured using digital morphology, ultrasound, SEI, H&E, and Masson trichrome methods. Results Cell experiments: downregulation of TNC decreased Col1 and Col3 expression, leading to reduced collagen production and extracellular matrix deposition. It did not affect HFF-1 cell proliferation and migration. Animal experiments: TNC knockdown promoted wound healing and reduced collagen deposition in rabbit ears. Conclusion This study suggests that knocking down TNC inhibits collagen formation and extracellular matrix deposition, thereby inhibiting hypertrophic scar formation. Therefore, TNC can be considered a potential biomarker for HS formation and may offer promising treatment strategies for clinical management of hypertrophic scars.
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Affiliation(s)
- Wei Xiang
- Department of Stomatology, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai, People’s Republic of China
| | - Zhen Guo
- Department of Stomatology, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai, People’s Republic of China
| | - Yiming Zhang
- Department of Stomatology, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai, People’s Republic of China
| | - Yuanzhi Xu
- Department of Stomatology, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai, People’s Republic of China
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Liang Z, Li J, Lin H, Zhang S, Liu F, Rao Z, Chen J, Feng Y, Zhang K, Quan D, Lin Z, Bai Y, Huang Q. Understanding the multi-functionality and tissue-specificity of decellularized dental pulp matrix hydrogels for endodontic regeneration. Acta Biomater 2024; 181:202-221. [PMID: 38692468 DOI: 10.1016/j.actbio.2024.04.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Revised: 04/06/2024] [Accepted: 04/25/2024] [Indexed: 05/03/2024]
Abstract
Dental pulp is the only soft tissue in the tooth which plays a crucial role in maintaining intrinsic multi-functional behaviors of the dentin-pulp complex. Nevertheless, the restoration of fully functional pulps after pulpitis or pulp necrosis, termed endodontic regeneration, remained a major challenge for decades. Therefore, a bioactive and in-situ injectable biomaterial is highly desired for tissue-engineered pulp regeneration. Herein, a decellularized matrix hydrogel derived from porcine dental pulps (pDDPM-G) was prepared and characterized through systematic comparison against the porcine decellularized nerve matrix hydrogel (pDNM-G). The pDDPM-G not only exhibited superior capabilities in facilitating multi-directional differentiation of dental pulp stem cells (DPSCs) during 3D culture, but also promoted regeneration of pulp-like tissues after DPSCs encapsulation and transplantation. Further comparative proteomic and transcriptome analyses revealed the differential compositions and potential mechanisms that endow the pDDPM-G with highly tissue-specific properties. Finally, it was realized that the abundant tenascin C (TNC) in pDDPM served as key factor responsible for the activation of Notch signaling cascades and promoted DPSCs odontoblastic differentiation. Overall, it is believed that pDDPM-G is a sort of multi-functional and tissue-specific hydrogel-based material that holds great promise in endodontic regeneration and clinical translation. STATEMENT OF SIGNIFICANCE: Functional hydrogel-based biomaterials are highly desirable for endodontic regeneration treatments. Decellularized extracellular matrix (dECM) preserves most extracellular matrix components of its native tissue, exhibiting unique advantages in promoting tissue regeneration and functional restoration. In this study, we prepared a porcine dental pulp-derived dECM hydrogel (pDDPM-G), which exhibited superior performance in promoting odontogenesis, angiogenesis, and neurogenesis of the regenerating pulp-like tissue, further showed its tissue-specificity compared to the peripheral nerve-derived dECM hydrogel. In-depth proteomic and transcriptomic analyses revealed that the activation of tenascin C-Notch axis played an important role in facilitating odontogenic regeneration. This biomaterial-based study validated the great potential of the dental pulp-specific pDDPM-G for clinical applications, and provides a springboard for research strategies in ECM-related regenerative medicine.
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Affiliation(s)
- Zelin Liang
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510055, China
| | - Junda Li
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510055, China
| | - Hongkun Lin
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510055, China
| | - Sien Zhang
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510055, China
| | - Fan Liu
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510055, China
| | - Zilong Rao
- Guangdong Engineering Technology Research Centre for Functional Biomaterials, PCFM Lab, School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510006, China
| | - Jiaxin Chen
- Guangdong Engineering Technology Research Centre for Functional Biomaterials, PCFM Lab, School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510006, China
| | - Yuwen Feng
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510055, China
| | - Kexin Zhang
- Guangdong Engineering Technology Research Centre for Functional Biomaterials, PCFM Lab, School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510006, China
| | - Daping Quan
- Guangdong Engineering Technology Research Centre for Functional Biomaterials, PCFM Lab, School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510006, China
| | - Zhengmei Lin
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510055, China.
| | - Ying Bai
- Guangdong Engineering Technology Research Centre for Functional Biomaterials, PCFM Lab, School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510006, China.
| | - Qiting Huang
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510055, China.
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Park JY, Kim HJ, Chae JR, Cho YL, Kang WJ. Preclinical evaluation of an 18F-labeled Tenascin-C aptamer for PET imaging of atherosclerotic plaque in mouse models of atherosclerosis. Biochem Biophys Res Commun 2024; 703:149650. [PMID: 38377941 DOI: 10.1016/j.bbrc.2024.149650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2024] [Accepted: 02/06/2024] [Indexed: 02/22/2024]
Abstract
Tenascin-C is an extracellular matrix glycoprotein strongly expressed in coronary atherosclerotic plaque. Aptamers are single-stranded oligonucleotides that bind to specific target molecules with high affinity. This study hypothesized that tenascin-C expression at atherosclerotic plaque in vivo could be detected by tenascin-C specific aptamers using positron emission tomography (PET). This paper reports the radiosynthesis of a fluorine-18 (18F)-labeled tenascin-C aptamer for the biodistribution and PET imaging of the tenascin-C expression in apolipoprotein E-deficient (ApoE-/-) mice. The aortas ApoE-/- mice showed significantly increased positive areas of Oil red O staining than control C57BL/6 mice, and tenascin-C expression was detected in foam cells accumulated in the subendothelial lesions of ApoE-/- mice. The ex vivo biodistribution of the 18F-labeled tenascin-C aptamer showed significantly increased uptake at the aorta of ApoE-/- mice, and ex vivo autoradiography of aorta revealed the high accumulation of the 18F-labeled tenascin-C aptamer in the atherosclerotic lesions of ApoE-/- mice, which was consistent with the location of the atherosclerotic plaques detected by Oil red O staining. PET imaging of the 18F-labeled tenascin-C aptamer revealed a significantly higher mean standardized uptake in the aorta of the ApoE-/- mice than the control C57BL/6 mice. These data highlight the potential use of tenascin-C aptamer to diagnose atherosclerotic lesions in vivo.
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Affiliation(s)
- Jun Young Park
- Department of Nuclear Medicine, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Hyun Jeong Kim
- Department of Nuclear Medicine, Yongin Severance Hospital, Yonsei University College of Medicine, 363 Dongbaekjukjeon-daero, Giheung-gu, Yongin, 16995, Republic of Korea
| | - Ju Ri Chae
- Department of Nuclear Medicine, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Ye Lim Cho
- Department of Nuclear Medicine, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Won Jun Kang
- Department of Nuclear Medicine, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea.
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Utgés JS, MacGowan SA, Ives CM, Barton GJ. Classification of likely functional class for ligand binding sites identified from fragment screening. Commun Biol 2024; 7:320. [PMID: 38480979 PMCID: PMC10937669 DOI: 10.1038/s42003-024-05970-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 02/23/2024] [Indexed: 03/17/2024] Open
Abstract
Fragment screening is used to identify binding sites and leads in drug discovery, but it is often unclear which binding sites are functionally important. Here, data from 37 experiments, and 1309 protein structures binding to 1601 ligands were analysed. A method to group ligands by binding sites is introduced and sites clustered according to profiles of relative solvent accessibility. This identified 293 unique ligand binding sites, grouped into four clusters (C1-4). C1 includes larger, buried, conserved, and population missense-depleted sites, enriched in known functional sites. C4 comprises smaller, accessible, divergent, missense-enriched sites, depleted in functional sites. A site in C1 is 28 times more likely to be functional than one in C4. Seventeen sites, which to the best of our knowledge are novel, in 13 proteins are identified as likely to be functionally important with examples from human tenascin and 5-aminolevulinate synthase highlighted. A multi-layer perceptron, and K-nearest neighbours model are presented to predict cluster labels for ligand binding sites with an accuracy of 96% and 100%, respectively, so allowing functional classification of sites for proteins not in this set. Our findings will be of interest to those studying protein-ligand interactions and developing new drugs or function modulators.
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Affiliation(s)
- Javier S Utgés
- Division of Computational Biology, School of Life Sciences, University of Dundee, Dundee, Scotland, UK
| | - Stuart A MacGowan
- Division of Computational Biology, School of Life Sciences, University of Dundee, Dundee, Scotland, UK
| | - Callum M Ives
- Division of Computational Biology, School of Life Sciences, University of Dundee, Dundee, Scotland, UK
- Department of Chemistry and Hamilton Institute, Maynooth University, Maynooth, Ireland
| | - Geoffrey J Barton
- Division of Computational Biology, School of Life Sciences, University of Dundee, Dundee, Scotland, UK.
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Álvarez S, Mullen AM, Álvarez C, Hamill RM, O'Neill E, Gagaoua M. Impact of sampling location and aging on the Longissimus thoracis et lumborum muscle proteome of dry-aged beef. Meat Sci 2023; 205:109315. [PMID: 37625354 DOI: 10.1016/j.meatsci.2023.109315] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 08/10/2023] [Accepted: 08/15/2023] [Indexed: 08/27/2023]
Abstract
This study aimed to explore the differences in the proteome and molecular pathways between two sampling locations (external, internal) of bovine Longissimus thoracis et lumborum (LTL) muscles at 0, 21, and 28 days of dry-aging (i.e. 3, 24, and 31 days post-mortem). It further assessed the impact of post-mortem aging on the meat proteome changes and the biological processes at interplay. Proteins related to defence response to bacterium and regulation of viral entry into host cell were identified to be more abundant on the external location before dry-aging, which may be associated to the oxidative conditions and microbial activity to which post-mortem muscle is exposed during dressing, chilling, and/or quartering of the carcasses. This highlights the relevance of sampling from interior tissues when searching for meat quality biomarkers. As dry-aging progressed, the meat proteome and related biological processes changed differently between sampling locations; proteins related to cell-cell adhesion and ATP metabolic processes pathways were revealed in the external location at 21 and 28 days, respectively. On the other hand, the impact of aging on the proteome of the interior meat samples, evidenced that muscle contraction and structure together with energy metabolism were the major pathways driving dry-aging. Additionally, aging impacted other pathways in the interior tissues, such as regulation of calcium import, neutrophil activation, and regeneration. Overall, the differences in the proteome allowed discriminating the three dry-aging times, regardless of the sampling location. Several proteins were proposed for validation as robust biomarkers to monitor the aging process (tenderization) of dry-aged beef: TTN, GRM4, EEF1A1, LDB3, CILP2, TNNT3, GAPDH, SERPINI1, and OMD.
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Affiliation(s)
- Sara Álvarez
- Dept. of Food Quality and Sensory Science, Teagasc Food Research Centre Ashtown, Dublin D15 DY05, Ireland; School of Food and Nutritional Sciences, University College, Cork, Western Road, Cork T12 YN60, Ireland
| | - Anne Maria Mullen
- Dept. of Food Quality and Sensory Science, Teagasc Food Research Centre Ashtown, Dublin D15 DY05, Ireland
| | - Carlos Álvarez
- Dept. of Food Quality and Sensory Science, Teagasc Food Research Centre Ashtown, Dublin D15 DY05, Ireland
| | - Ruth M Hamill
- Dept. of Food Quality and Sensory Science, Teagasc Food Research Centre Ashtown, Dublin D15 DY05, Ireland
| | - Eileen O'Neill
- School of Food and Nutritional Sciences, University College, Cork, Western Road, Cork T12 YN60, Ireland
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Gaggi G, Di Credico A, D'Addazio G, Ghinassi B, Argentieri G, Caputi S, Di Baldassarre A, Sinjari B. Impact on peri-implant connective tissue of laser treated versus traditional healing abutments: a human clinical trials. BMC Oral Health 2023; 23:425. [PMID: 37370064 DOI: 10.1186/s12903-023-03148-y] [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: 03/27/2023] [Accepted: 06/20/2023] [Indexed: 06/29/2023] Open
Abstract
BACKGROUND Dental implant is the principal treatment for edentulism and the healthiness of the peri-implant tissue has a pivotal role for its longterm success. In addition, it has been shown that also the topography of the healing abutment can influence the outcome of the restoration. The objective of this human clinical trial was to assess the impact of a novel laser-treated healing abutment on peri-implant connective tissue and extracellular matrix proteins compared to the conventional machined surface, which served as the control group. METHODS During second surgical stage a customized healing abutment were inserted on 30 single dental implants. Healing abutments were realized with two alternated different surface (two side laser-treated surfaces and two side machined surfaces) in order to be considered both as test and control on the same implant and reduce positioning bias. Following the soft tissue healing period (30 ± 7 days) a 5 mm circular biopsy was retrieved. Immuno-histochemical and quantitative real-time PCR (qPCR) analyses were performed on Collagen, Tenascin C, Fibrillin I, Metalloproteinases (MMPs) and their inhibitor (TIMPs). 15 were processed for qPCR, while the other 15 were processed for immunohistochemical analysis. Paired t-test between the two groups were performed. A value of p < 0.05 was considered statistically significant. RESULTS Results revealed that the connective tissue facing the laser-treated surface expressed statistically significant lower amount of MMPs (p < 0.05) and higher level of TIMPs 3 (p < 0.05), compared to the tissue surrounding the machined implant, which, in turn expressed also altered level of extracellular matrix protein (Tenascin C, Fibrillin I (p < 0.05)) and Collagen V, that are known to be altered also in peri-implantitis. CONCLUSIONS In conclusion, the laser-treated surface holds promise in positively influencing wound healing of peri-implant connective tissue. Results demonstrated that topographic nature of the healing abutments can positively influence mucosal wound healing and molecular expression. Previous studies have been demonstrated how laser treatment can rightly influence integrity and functionality of the gingiva epithelium and cell adhesion. Regarding connective tissue different molecular expression demonstrated a different inflammatory pattern between laser treated or machined surfaces where laser treated showed better response. Targeted interventions and preventive measures on peri- implant topography could effectively minimize the risk of peri-implant diseases contributing to the long-term success and durability of restoration. However, new studies are mandatory to better understand this phenomenon and the role of this surface in the peri-implantitis process. TRIAL REGISTRATION: This trial is registered with ClinicalTrials.gov Identifier: (Registration Number: NCT05754970 ). Registered 06/03/2023, retrospectively registered.
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Affiliation(s)
- Giulia Gaggi
- Human Anatomy and Cell Differentiation Lab, Department of Medicine and Aging Sciences, University "G.d'Annunzio" of Chieti-Pescara, 66100, Chieti, Italy
| | - Andrea Di Credico
- Human Anatomy and Cell Differentiation Lab, Department of Medicine and Aging Sciences, University "G.d'Annunzio" of Chieti-Pescara, 66100, Chieti, Italy
| | - Gianmaria D'Addazio
- Unit of Prosthodontics, Department of Innovative Technologies in Medicine and Dentistry, University "G. d'Annunzio" of Chieti-Pescara, 66100, Chieti, Italy
- Electron Microscopy Laboratory, University "G. d'Annunzio" of Chieti-Pescara, 66100, Chieti, Italy
| | - Barbara Ghinassi
- Human Anatomy and Cell Differentiation Lab, Department of Medicine and Aging Sciences, University "G.d'Annunzio" of Chieti-Pescara, 66100, Chieti, Italy
| | - Giulio Argentieri
- Unit of Prosthodontics, Department of Innovative Technologies in Medicine and Dentistry, University "G. d'Annunzio" of Chieti-Pescara, 66100, Chieti, Italy
- Electron Microscopy Laboratory, University "G. d'Annunzio" of Chieti-Pescara, 66100, Chieti, Italy
| | - Sergio Caputi
- Unit of Prosthodontics, Department of Innovative Technologies in Medicine and Dentistry, University "G. d'Annunzio" of Chieti-Pescara, 66100, Chieti, Italy
- Electron Microscopy Laboratory, University "G. d'Annunzio" of Chieti-Pescara, 66100, Chieti, Italy
| | - Angela Di Baldassarre
- Human Anatomy and Cell Differentiation Lab, Department of Medicine and Aging Sciences, University "G.d'Annunzio" of Chieti-Pescara, 66100, Chieti, Italy.
| | - Bruna Sinjari
- Unit of Prosthodontics, Department of Innovative Technologies in Medicine and Dentistry, University "G. d'Annunzio" of Chieti-Pescara, 66100, Chieti, Italy
- Electron Microscopy Laboratory, University "G. d'Annunzio" of Chieti-Pescara, 66100, Chieti, Italy
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Matsui K, Torii S, Hara S, Maruyama K, Arai T, Imanaka-Yoshida K. Tenascin-C in Tissue Repair after Myocardial Infarction in Humans. Int J Mol Sci 2023; 24:10184. [PMID: 37373332 DOI: 10.3390/ijms241210184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Revised: 06/09/2023] [Accepted: 06/09/2023] [Indexed: 06/29/2023] Open
Abstract
Adverse ventricular remodeling after myocardial infarction (MI) is progressive ventricular dilatation associated with heart failure for weeks or months and is currently regarded as the most critical sequela of MI. It is explained by inadequate tissue repair due to dysregulated inflammation during the acute stage; however, its pathophysiology remains unclear. Tenascin-C (TNC), an original member of the matricellular protein family, is highly up-regulated in the acute stage after MI, and a high peak in its serum level predicts an increased risk of adverse ventricular remodeling in the chronic stage. Experimental TNC-deficient or -overexpressing mouse models have suggested the diverse functions of TNC, particularly its pro-inflammatory effects on macrophages. The present study investigated the roles of TNC during human myocardial repair. We initially categorized the healing process into four phases: inflammatory, granulation, fibrogenic, and scar phases. We then immunohistochemically examined human autopsy samples at the different stages after MI and performed detailed mapping of TNC in human myocardial repair with a focus on lymphangiogenesis, the role of which has recently been attracting increasing attention as a mechanism to resolve inflammation. The direct effects of TNC on human lymphatic endothelial cells were also assessed by RNA sequencing. The results obtained support the potential roles of TNC in the regulation of macrophages, sprouting angiogenesis, the recruitment of myofibroblasts, and the early formation of collagen fibrils during the inflammatory phase to the early granulation phase of human MI. Lymphangiogenesis was observed after the expression of TNC was down-regulated. In vitro results revealed that TNC modestly down-regulated genes related to nuclear division, cell division, and cell migration in lymphatic endothelial cells, suggesting its inhibitory effects on lymphatic endothelial cells. The present results indicate that TNC induces prolonged over-inflammation by suppressing lymphangiogenesis, which may be one of the mechanisms underlying adverse post-infarct remodeling.
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Affiliation(s)
- Kenta Matsui
- Department of Pathology and Matrix Biology, Graduate School of Medicine, Mie University, 2-174 Edobashi, Tsu 514-8507, Japan
| | - Sota Torii
- Department of Pathology and Matrix Biology, Graduate School of Medicine, Mie University, 2-174 Edobashi, Tsu 514-8507, Japan
| | - Shigeru Hara
- Department of Pathology and Matrix Biology, Graduate School of Medicine, Mie University, 2-174 Edobashi, Tsu 514-8507, Japan
| | - Kazuaki Maruyama
- Department of Pathology and Matrix Biology, Graduate School of Medicine, Mie University, 2-174 Edobashi, Tsu 514-8507, Japan
| | - Tomio Arai
- Department of Pathology, Tokyo Metropolitan Geriatric Hospital and Institute of Gerontology, 3-52 Sakaecho, Itabashi-ku, Tokyo 173-0015, Japan
| | - Kyoko Imanaka-Yoshida
- Department of Pathology and Matrix Biology, Graduate School of Medicine, Mie University, 2-174 Edobashi, Tsu 514-8507, Japan
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