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Ramirez GO, Mariano CA, Carter D, Eskandari M. Visceral Pleura Mechanics: Characterization of Human, Pig, and Rat Lung Material Properties. Acta Biomater 2024:S1742-7061(24)00519-1. [PMID: 39251049 DOI: 10.1016/j.actbio.2024.09.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Revised: 08/13/2024] [Accepted: 09/04/2024] [Indexed: 09/11/2024]
Abstract
Pulmonary air leaks are amongst the most common complications in lung surgery. Lung sealants are applied to the organ surface and need to synchronously stretch with the visceral pleura, the layer of tissue which encompasses the lung parenchymal tissue. These adhesives are commonly tested on two animals, pig and rat lungs, but applied to human lungs. However, the unknown mechanics of human lung visceral pleura undermines the clinical translatability of such animal-tested sealants and the absence of how pig and rat lung visceral pleura compare to human tissues is necessary to address. Here we quantify the biaxial planar tensile mechanics of visceral pleura from healthy transplant-eligible and smoker human lungs for the first time, and further compare the material behaviors to pig and rat lung visceral pleura. Initial and final stiffness moduli, maximum stress, low-to-high strain transition, and stress relaxation are analyzed and compared between and within groups, further considering regional and directional dependencies. Visceral pleura tissue from all species behaves isotropically, and pig and human visceral pleura exhibits regional heterogeneity (i.e. upper versus lower lobe differences). We find that pig visceral pleura exhibits similar initial stiffness moduli and regional trends compared to human visceral pleura, suggesting pig tissue may serve as a viable animal model candidate for lung sealant testing. The outcomes and mechanical characterization of these scarce tissues enables future development of biomimetic lung sealants for improved surgical applications. STATEMENT OF SIGNIFICANCE: Surgical lung sealants must synchronously deform with the underlying tissue and with each breath to minimize post-operative air leaks, which remain the most frequent complications of pulmonary intervention. These adhesives are often tested on pig and rat lungs, but applied to humans; however, the material properties of human lung visceral pleura were previously unexplored. Here, for the first time, the mechanics of human visceral pleura tissue are investigated, further contrasting rarely acquired donated lungs from healthy and smoking individuals, and additionally, comparing biaxial planar material characterizations to animal models often employed for pulmonary sealant development. This fundamental material characterization addresses key hindrances in the advancement of biomimetic sealants and evaluates the translatability of animal model experiments for clinical applications.
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Affiliation(s)
- Gustavo O Ramirez
- Department of Mechanical Engineering, University of California, Riverside, CA, USA
| | - Crystal A Mariano
- Department of Mechanical Engineering, University of California, Riverside, CA, USA
| | - David Carter
- Department of Molecular, Cell and Systems Biology, University of California, Riverside, CA, USA
| | - Mona Eskandari
- Department of Mechanical Engineering, University of California, Riverside, CA, USA; BREATHE Center, School of Medicine University of California, Riverside, CA, USA; Department of Bioengineering, University of California, Riverside, CA, USA.
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Wan H, Xiang J, Mao G, Pan S, Li B, Lu Y. Recent Advances in the Application of 3D-Printing Bioinks Based on Decellularized Extracellular Matrix in Tissue Engineering. ACS OMEGA 2024; 9:24219-24235. [PMID: 38882108 PMCID: PMC11170705 DOI: 10.1021/acsomega.4c02847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Revised: 05/10/2024] [Accepted: 05/17/2024] [Indexed: 06/18/2024]
Abstract
In recent years, 3D bioprinting with various types of bioinks has been widely used in tissue engineering to fabricate human tissues and organs with appropriate biological functions. Decellularized extracellular matrix (dECM) is an excellent bioink candidate because it is enriched with a variety of bioactive proteins and bioactive factors and can provide a suitable environment for tissue repair or tissue regeneration while reducing the likelihood of severe immune rejection. In this Review, we systematically review recent advances in 3D bioprinting and decellularization technologies and comprehensively detail the latest research and applications of dECM as a bioink for tissue engineering in various systems, with the aim of providing a reference for researchers in tissue engineering to better understand the properties of dECM bioinks.
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Affiliation(s)
- Haoxin Wan
- Department
of Thoracic Surgery, The First Affiliated
Hospital of Soochow University, Suzhou 215000, China
| | - Jian Xiang
- Affiliated
Hospital of Yangzhou University, Yangzhou 225000, China
| | - Guocai Mao
- Department
of Thoracic Surgery, The First Affiliated
Hospital of Soochow University, Suzhou 215000, China
| | - Shu Pan
- Department
of Thoracic Surgery, The First Affiliated
Hospital of Soochow University, Suzhou 215000, China
| | - Bing Li
- The
Second Affiliated Hospital of Soochow University, Suzhou 215000, China
| | - Yi Lu
- Clinical
Medical College, Yangzhou University, Yangzhou 225000, China
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Lu X, Kelley G, Wang M, Guo X, Han L, Kassab GS. Performance of xenogeneic pulmonary visceral pleura as bioprosthetic heart valve cusps in swine. Front Cardiovasc Med 2023; 10:1213398. [PMID: 37600031 PMCID: PMC10433919 DOI: 10.3389/fcvm.2023.1213398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 07/20/2023] [Indexed: 08/22/2023] Open
Abstract
Objective Bovine pericardium is common biological material for bioprosthetic heart valve. There remains a significant need, however, to improve bioprosthetic valves for longer-term outcomes. This study aims to evaluate the chronic performance of bovine pulmonary visceral pleura (PVP) as bioprosthetic valve cusps. Methods The PVP was extracted from the bovine lung and fixed in 0.625% glutaraldehyde overnight at room temperature. The PVP valve cusps for the bioprosthetic valve were tailored using a laser cutter. Three leaflets were sewn onto a nitinol stent. Six PVP bioprosthetic valves were loaded into the test chamber of the heart valve tester to complete 100 million cycles. Six other PVP bioprosthetic valves were transcardially implanted to replace pulmonary artery valve of six pigs. Fluoroscopy and intracardiac echocardiography were used for in vivo assessments. Thrombosis, calcification, inflammation, and fibrosis were evaluated in the terminal study. Histologic analyses were used for evaluations of any degradation or calcification. Results All PVP bioprosthetic valves completed 100 million cycles without significant damage or tears. In vivo assessments showed bioprosthetic valve cusps open and coaptation at four months post-implant. No calcification and thrombotic deposits, inflammation, and fibrosis were observed in the heart or pulmonary artery. The histologic analyses showed complete and compact elastin and collagen fibers in the PVP valve cusps. Calcification-specific stains showed no calcific deposit in the PVP valve cusps. Conclusions The accelerated wear test demonstrates suitable mechanical strength of PVP cusps for heart valve. The swine model demonstrates that the PVP valve cusps are promising for valve replacement.
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Affiliation(s)
- Xiao Lu
- Department of Bioengineering, California Medical Innovations Institute, San Diego, CA, United States
| | - Greg Kelley
- Department of Research and Development, 3 DT Holdings, LLC, San Diego, CA, United States
| | - Mengjun Wang
- Department of Research and Development, 3 DT Holdings, LLC, San Diego, CA, United States
| | - Xiaomei Guo
- Department of Bioengineering, California Medical Innovations Institute, San Diego, CA, United States
| | - Ling Han
- Department of Bioengineering, California Medical Innovations Institute, San Diego, CA, United States
| | - Ghassan S. Kassab
- Department of Bioengineering, California Medical Innovations Institute, San Diego, CA, United States
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Guo X, Patel B, Han L, Van Alstine WG, Noblet JN, Chambers SD, Kassab GS. Novel patch biomaterial treatment for colon diverticulosis in swine model. Front Bioeng Biotechnol 2023; 11:1215362. [PMID: 37588135 PMCID: PMC10425590 DOI: 10.3389/fbioe.2023.1215362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 07/18/2023] [Indexed: 08/18/2023] Open
Abstract
Current leading managements for diverticular disease cannot prevent the recurrence of diverticulitis, bleeding and/or other complications. There is an immediate need for developing new minimal invasive therapeutic strategies to prevent and treat this disease. Through a biomechanical analysis of porcine colon with diverticular lesions, we proposed a novel adhesive patch concept aiming at mechanical reconstruction of the diseased colon wall. This study aims to evaluate the surgical feasibility (safety and efficacy) of pulmonary visceral pleura (PVP) patch therapy using a pig model of diverticulosis. Six female Yucatan miniature pigs underwent collagenase injection (CI) for the development of diverticular lesions. The lesions in each animal either received patch implantation (treated group, n = 40 for 6 pigs) or left intact (untreated group, n = 44 for 6 pigs). The normal colonic wall in each animal received patch implantation at two spots to serve as control (n = 12 for 6 pigs). After 3 months of observation, the performance and safety of the patch treatment were evaluated through macroscopic and histological examination. We found that 95% of pouch-like herniation of the mucosa was prevented from the colon wall with the treatment. The pouch diameter was significantly reduced in the treated group as compared to the untreated group (p < 0.001). The patch application caused a significant increase in the levels of collagen of the colon tissue as compared to the untreated and control groups (p < 0.001). No difference was found in the lymphocyte and macrophage inflammatory infiltrate between the groups. Our results suggest that patch treatment efficiently inhibits the diverticular pouch deformation and promotes the healing of the colon wall with a normal inflammatory response, which may minimize the risk of diverticulosis reoccurrence and complications over time.
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Affiliation(s)
- Xiaomei Guo
- California Medical Innovations Institute Inc, San Diego, CA, United States
| | - Bhavesh Patel
- California Medical Innovations Institute Inc, San Diego, CA, United States
| | - Ling Han
- California Medical Innovations Institute Inc, San Diego, CA, United States
| | | | | | | | - Ghassan S. Kassab
- California Medical Innovations Institute Inc, San Diego, CA, United States
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Metelmann IB, Kraemer S, Steinert M, Langer S, Stock P, Kurow O. Novel 3D organotypic co-culture model of pleura. PLoS One 2022; 17:e0276978. [PMID: 36454800 PMCID: PMC9714887 DOI: 10.1371/journal.pone.0276978] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 10/18/2022] [Indexed: 12/03/2022] Open
Abstract
Pleural mesothelial cells are the predominant cell type in the pleural cavity, but their role in the pathogenesis of pleural diseases needs to be further elucidated. 3D organotypic models are an encouraging approach for an in vivo understanding of molecular disease development. The aim of the present study was to develop a 3D organotypic model of the pleural mesothelium. Specimens of human pleura parietalis were obtained from patients undergoing surgery at the University Hospital Leipzig, Germany. 3D co-culture model of pleura was established from human pleural mesothelial cells and fibroblasts. The model was compared to human pleura tissue by phase-contrast and light microscopy, immunochemistry and -fluorescence as well as solute permeation test. Histological assessment of the 3D co-culture model displayed the presence of both cell types mimicking the morphology of the human pleura. Vimentin and Cytokeratin, PHD1 showed a similar expression pattern in pleural biopsies and 3D model. Expression of Ki-67 indicates the presence of proliferating cells. Tight junctional marker ZO-1 was found localized at contact zones between mesothelial cells. Each of these markers were expressed in both the 3D co-culture model and human biopsies. Permeability of 3D organotypic co-culture model of pleura was found to be higher for 70 kDa-Dextran and no significant difference was seen in the permeability for small dextran (4 kDa). In summary, the presented 3D organoid of pleura functions as a robust assay for pleural research serving as a precise reproduction of the in vivo morphology and microenvironment.
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Affiliation(s)
- Isabella B. Metelmann
- Department of Visceral, Transplant, Thoracic and Vascular Surgery, University Hospital of Leipzig, Leipzig, Germany
| | - Sebastian Kraemer
- Department of Visceral, Transplant, Thoracic and Vascular Surgery, University Hospital of Leipzig, Leipzig, Germany
| | - Matthias Steinert
- Department of Visceral, Transplant, Thoracic and Vascular Surgery, University Hospital of Leipzig, Leipzig, Germany
| | - Stefan Langer
- Department of Orthopedics, Trauma and Plastic Surgery, University Hospital Leipzig, Leipzig, Germany
| | - Peggy Stock
- Department of Visceral, Transplant, Thoracic and Vascular Surgery, University Hospital of Leipzig, Leipzig, Germany
| | - Olga Kurow
- Department of Visceral, Transplant, Thoracic and Vascular Surgery, University Hospital of Leipzig, Leipzig, Germany
- * E-mail:
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Gong H, Chen L, He Y, Hua K, Ma B, Gao Y, Xu X, Hu X, Jin H. Pleural thickening induced by Glaesserella parasuis infection was linked to increased collagen and elastin. Front Cell Infect Microbiol 2022; 12:952377. [PMID: 36034702 PMCID: PMC9409878 DOI: 10.3389/fcimb.2022.952377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 07/19/2022] [Indexed: 11/29/2022] Open
Abstract
Glaesserella parasuis is well-known for causing Glässer’s disease, which costs the worldwide swine industry millions of dollars each year. It has been reported the symptom of pleural thickening during Glässer’s disease but this symptom has received little attention. And there is no research on the elements which promote pleural thickening. In this study, pleural thickening was discovered to be associated with increased collagen fibers and elastic fibers. Furthermore, collagen-I and elastin were found to be up-regulated and concentrated in the pleura at the mRNA and protein levels following infection. To summarize, our findings add to the theoretical understanding of Glässer’s disease and provide strong support for further research into the pathogenic mechanism of Glaesserella parasuis and the program’s target treatment.
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Affiliation(s)
- Huimin Gong
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
- College of Animal Medicine, Huazhong Agricultural University, Wuhan, China
- Hubei Provincial Key Laboratory of Preventive Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Liying Chen
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
- College of Animal Medicine, Huazhong Agricultural University, Wuhan, China
- Hubei Provincial Key Laboratory of Preventive Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Yanling He
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
- College of Animal Medicine, Huazhong Agricultural University, Wuhan, China
- Hubei Provincial Key Laboratory of Preventive Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Kexin Hua
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
- College of Animal Medicine, Huazhong Agricultural University, Wuhan, China
- Hubei Provincial Key Laboratory of Preventive Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Bin Ma
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
- College of Animal Medicine, Huazhong Agricultural University, Wuhan, China
- Hubei Provincial Key Laboratory of Preventive Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Yuan Gao
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
- College of Animal Medicine, Huazhong Agricultural University, Wuhan, China
- Hubei Provincial Key Laboratory of Preventive Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Xiaojuan Xu
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
- Key Laboratory of Preventive Veterinary Medicine in Hubei Province, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, China
| | - Xueying Hu
- College of Animal Medicine, Huazhong Agricultural University, Wuhan, China
| | - Hui Jin
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
- College of Animal Medicine, Huazhong Agricultural University, Wuhan, China
- Hubei Provincial Key Laboratory of Preventive Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- *Correspondence: Hui Jin,
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