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Development of the Peritoneal Metastasis: A Review of Back-Grounds, Mechanisms, Treatments and Prospects. J Clin Med 2022; 12:jcm12010103. [PMID: 36614904 PMCID: PMC9821147 DOI: 10.3390/jcm12010103] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 12/16/2022] [Accepted: 12/20/2022] [Indexed: 12/24/2022] Open
Abstract
Peritoneal metastasis is a malignant disease which originated from several gastrointestinal and gynecological carcinomas and has been leading to a suffering condition in patients for decades. Currently, as people have gradually become more aware of the severity of peritoneal carcinomatosis, new molecular mechanisms for targeting and new treatments have been proposed. However, due to the uncertainty of influencing factors involved and a lack of a standardized procedure for this treatment, as well as a need for more clinical data for specific evaluation, more research is needed, both for preventing and treating. We aim to summarize backgrounds, mechanisms and treatments in this area and conclude limitations or new aspects for treatments.
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2
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Trophic and immunomodulatory effects of adipose tissue derived stem cells in a preclinical murine model of endometriosis. Sci Rep 2022; 12:8031. [PMID: 35577867 PMCID: PMC9110373 DOI: 10.1038/s41598-022-11891-5] [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: 08/29/2021] [Accepted: 04/25/2022] [Indexed: 11/24/2022] Open
Abstract
Endometriosis, which exhibits enigmatic pathological features such as stromal fibrosis and proliferation of ectopic epithelial cells, is known as a refractory disease. Mesenchymal stem cells modulate the fibrosis in stromal tissues through their trophic and immunomodulatory properties. To investigate the potential of stem cells in treating endometriosis, we examined the secondary morphology and molecular alterations in endometriosis-like lesions after the administration of adipose tissue-derived stem cells (ASCs) to an experimental murine model of endometriosis. The infused ASCs were found integrated in the endometriosis-like lesions. Accompanied by the suppression of stromal fibrosis and proliferation of endometriotic epithelial cells, the infusion of ASCs with stemness potential (early passage of ASCs) suppressed the growth of endometriosis-like lesions and inhibited the expression of pro-inflammatory and pro-fibrotic cytokines, whereas no significant attenuation of endometriosis-like lesions occurred after the infusion of ASCs without stemness potential (late passage of ASCs). Accordingly, the trophic and immunomodulatory properties of ASCs may regulate fibrosis in endometriosis-like lesions, suggesting that regenerative medicine could be recognized as an innovative treatment for patients with endometriosis through the accumulation of evidence of preclinical efficacy.
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3
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Ritch SJ, Telleria CM. The Transcoelomic Ecosystem and Epithelial Ovarian Cancer Dissemination. Front Endocrinol (Lausanne) 2022; 13:886533. [PMID: 35574025 PMCID: PMC9096207 DOI: 10.3389/fendo.2022.886533] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 03/24/2022] [Indexed: 11/13/2022] Open
Abstract
Epithelial ovarian cancer (EOC) is considered the deadliest gynecological disease and is normally diagnosed at late stages, at which point metastasis has already occurred. Throughout disease progression, EOC will encounter various ecosystems and the communication between cancer cells and these microenvironments will promote the survival and dissemination of EOC. The primary tumor is thought to develop within the ovaries or the fallopian tubes, both of which provide a microenvironment with high risk of causing DNA damage and enhanced proliferation. EOC disseminates by direct extension from the primary tumors, as single cells or multicellular aggregates. Under the influence of cellular and non-cellular factors, EOC spheroids use the natural flow of peritoneal fluid to reach distant organs within the peritoneal cavity. These cells can then implant and seed distant organs or tissues, which develop rapidly into secondary tumor nodules. The peritoneal tissue and the omentum are two common sites of EOC metastasis, providing a microenvironment that supports EOC invasion and survival. Current treatment for EOC involves debulking surgery followed by platinum-taxane combination chemotherapy; however, most patients will relapse with a chemoresistant disease with tumors developed within the peritoneum. Therefore, understanding the role of the unique microenvironments that promote EOC transcoelomic dissemination is important in improving patient outcomes from this disease. In this review article, we address the process of ovarian cancer cellular fate at the site of its origin in the secretory cells of the fallopian tube or in the ovarian surface epithelial cells, their detachment process, how the cells survive in the peritoneal fluid avoiding cell death triggers, and how cancer- associated cells help them in the process. Finally, we report the mechanisms used by the ovarian cancer cells to adhere and migrate through the mesothelial monolayer lining the peritoneum. We also discuss the involvement of the transcoelomic ecosystem on the development of chemoresistance of EOC.
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Affiliation(s)
- Sabrina J. Ritch
- Experimental Pathology Unit, Department of Pathology, Faculty of Medicine and Health Sciences, McGill University, Montreal, QC, Canada
| | - Carlos M. Telleria
- Experimental Pathology Unit, Department of Pathology, Faculty of Medicine and Health Sciences, McGill University, Montreal, QC, Canada
- Cancer Research Program, Research Institute, McGill University Health Centre, Montreal, QC, Canada
- *Correspondence: Carlos M. Telleria, ; orcid.org/0000-0003-1070-3538
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4
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Hart PC, Kenny HA, Grassl N, Watters KM, Litchfield LM, Coscia F, Blaženović I, Ploetzky L, Fiehn O, Mann M, Lengyel E, Romero IL. Mesothelial Cell HIF1α Expression Is Metabolically Downregulated by Metformin to Prevent Oncogenic Tumor-Stromal Crosstalk. Cell Rep 2020; 29:4086-4098.e6. [PMID: 31851935 DOI: 10.1016/j.celrep.2019.11.079] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 10/04/2019] [Accepted: 11/19/2019] [Indexed: 01/04/2023] Open
Abstract
The tumor microenvironment (TME) plays a pivotal role in cancer progression, and, in ovarian cancer (OvCa), the primary TME is the omentum. Here, we show that the diabetes drug metformin alters mesothelial cells in the omental microenvironment. Metformin interrupts bidirectional signaling between tumor and mesothelial cells by blocking OvCa cell TGF-β signaling and mesothelial cell production of CCL2 and IL-8. Inhibition of tumor-stromal crosstalk by metformin is caused by the reduced expression of the tricarboxylic acid (TCA) enzyme succinyl CoA ligase (SUCLG2). Through repressing this TCA enzyme and its metabolite, succinate, metformin activated prolyl hydroxylases (PHDs), resulting in the degradation of hypoxia-inducible factor 1α (HIF1α) in mesothelial cells. Disruption of HIF1α-driven IL-8 signaling in mesothelial cells by metformin results in reduced OvCa invasion in an organotypic 3D model. These findings indicate that tumor-promoting signaling between mesothelial and OvCa cells in the TME can be targeted using metformin.
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Affiliation(s)
- Peter C Hart
- Department of Obstetrics and Gynecology/Section of Gynecologic Oncology, University of Chicago, Chicago, IL 60637, USA
| | - Hilary A Kenny
- Department of Obstetrics and Gynecology/Section of Gynecologic Oncology, University of Chicago, Chicago, IL 60637, USA
| | - Niklas Grassl
- Department of Proteomics and Signal Transduction, Max Planck Institute of Biochemistry, Martinsried 82152, Germany
| | - Karen M Watters
- Department of Obstetrics and Gynecology/Section of Gynecologic Oncology, University of Chicago, Chicago, IL 60637, USA
| | - Lacey M Litchfield
- Department of Obstetrics and Gynecology/Section of Gynecologic Oncology, University of Chicago, Chicago, IL 60637, USA
| | - Fabian Coscia
- Department of Proteomics and Signal Transduction, Max Planck Institute of Biochemistry, Martinsried 82152, Germany
| | - Ivana Blaženović
- West Coast Metabolomics Center, University of California, Davis Genome Center, Davis, CA, USA
| | - Lisa Ploetzky
- West Coast Metabolomics Center, University of California, Davis Genome Center, Davis, CA, USA
| | - Oliver Fiehn
- West Coast Metabolomics Center, University of California, Davis Genome Center, Davis, CA, USA
| | - Matthias Mann
- Department of Proteomics and Signal Transduction, Max Planck Institute of Biochemistry, Martinsried 82152, Germany
| | - Ernst Lengyel
- Department of Obstetrics and Gynecology/Section of Gynecologic Oncology, University of Chicago, Chicago, IL 60637, USA.
| | - Iris L Romero
- Department of Obstetrics and Gynecology/Section of Gynecologic Oncology, University of Chicago, Chicago, IL 60637, USA.
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5
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Falk P, Jonsson A, Swartling T, Asplund D, Ivarsson ML. Role of matrix metalloproteinases in tumour invasion: immunohistochemistry of peritoneum from peritoneal carcinomatosis. Med Oncol 2018; 35:64. [PMID: 29623449 PMCID: PMC5886990 DOI: 10.1007/s12032-018-1122-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Accepted: 03/30/2018] [Indexed: 01/25/2023]
Abstract
Colorectal cancer is one of the most common forms of cancer. Spread of tumour to the peritoneal cavity may lead to seeding of cancer cells that adhere to and invade the peritoneal membrane causing peritoneal carcinomatosis. Matrix metalloproteinases (MMPs) play an essential role in cancer cell invasion and dissemination. The aim of this study was to evaluate the morphology and presence of matrix metalloproteinases in peritoneal carcinomatosis. Biopsy samples of the parietal peritoneum were taken from patients undergoing cytoreductive surgery for peritoneal carcinomatosis. The samples were fixed in formalin, dehydrated and embedded in paraffin prior to cutting into 4-µm slices. Staining with haematoxylin/eosin was used for morphology studies, and MMP-1, MMP-2 and TIMP-1 levels were evaluated using immunohistochemistry and light microscopy. The microscopically tumour-free areas of the peritoneal membrane were thin compared to the peripheral invasion zone and the areas invaded by tumour. Peritoneum invaded by tumour was richly vascularised and contained inflammatory cells. MMP-1 was expressed in tumour-free peritoneum and in the invasion zone between tumour and peritoneal tissue, but not in tumour-invaded areas. MMP-2 and TIMP-1 were mostly expressed in the proximity of blood vessels and inflammatory cells in tumour-invaded areas, but was not seen in tumour-free areas. MMPs play an important role in the process of cancer cell invasion of the peritoneum in peritoneal carcinomatosis. The peripheral zone of the tumour appears to be of importance for tumour invasion.
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Affiliation(s)
- Peter Falk
- Fibrinolysis Laboratory/Tissue Centre, Department of Surgery, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Sahlgrenska University Hospital/Östra, Diagnosvägen 11, 416 50, Göteborg, Sweden
| | - Andreas Jonsson
- Fibrinolysis Laboratory/Tissue Centre, Department of Surgery, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Sahlgrenska University Hospital/Östra, Diagnosvägen 11, 416 50, Göteborg, Sweden
- Varberg Hospital, Varberg, Region Halland, Sweden
| | - Torbjörn Swartling
- Fibrinolysis Laboratory/Tissue Centre, Department of Surgery, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Sahlgrenska University Hospital/Östra, Diagnosvägen 11, 416 50, Göteborg, Sweden
| | - Dan Asplund
- Fibrinolysis Laboratory/Tissue Centre, Department of Surgery, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Sahlgrenska University Hospital/Östra, Diagnosvägen 11, 416 50, Göteborg, Sweden
| | - Marie-Lois Ivarsson
- Fibrinolysis Laboratory/Tissue Centre, Department of Surgery, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Sahlgrenska University Hospital/Östra, Diagnosvägen 11, 416 50, Göteborg, Sweden.
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6
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Wilson RB. Hypoxia, cytokines and stromal recruitment: parallels between pathophysiology of encapsulating peritoneal sclerosis, endometriosis and peritoneal metastasis. Pleura Peritoneum 2018; 3:20180103. [PMID: 30911653 PMCID: PMC6405013 DOI: 10.1515/pp-2018-0103] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Accepted: 03/01/2018] [Indexed: 02/06/2023] Open
Abstract
Peritoneal response to various kinds of injury involves loss of peritoneal mesothelial cells (PMC), danger signalling, epithelial-mesenchymal transition and mesothelial-mesenchymal transition (MMT). Encapsulating peritoneal sclerosis (EPS), endometriosis (EM) and peritoneal metastasis (PM) are all characterized by hypoxia and formation of a vascularized connective tissue stroma mediated by vascular endothelial growth factor (VEGF). Transforming growth factor-β1 (TGF-β1) is constitutively expressed by the PMC and plays a major role in the maintenance of a transformed, inflammatory micro-environment in PM, but also in EPS and EM. Persistently high levels of TGF-β1 or stimulation by inflammatory cytokines (interleukin-6 (IL-6)) induce peritoneal MMT, adhesion formation and fibrosis. TGF-β1 enhances hypoxia inducible factor-1α expression, which drives cell growth, extracellular matrix production and cell migration. Disruption of the peritoneal glycocalyx and exposure of the basement membrane release low molecular weight hyaluronan, which initiates a cascade of pro-inflammatory mediators, including peritoneal cytokines (TNF-α, IL-1, IL-6, prostaglandins), growth factors (TGF-α, TGF-β, platelet-derived growth factor, VEGF, epidermal growth factor) and the fibrin/coagulation cascade (thrombin, Tissue factor, plasminogen activator inhibitor [PAI]-1/2). Chronic inflammation and cellular transformation are mediated by damage-associated molecular patterns, pattern recognition receptors, AGE-RAGE, extracellular lactate, pro-inflammatory cytokines, reactive oxygen species, increased glycolysis, metabolomic reprogramming and cancer-associated fibroblasts. The pathogenesis of EPS, EM and PM shows similarities to the cellular transformation and stromal recruitment of wound healing.
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Affiliation(s)
- Robert Beaumont Wilson
- Upper GI Surgery Department, Liverpool Hospital, Elizabeth St, Liverpool, 2170, NSW, Australia
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Shen XR, Chen XL, Xie HX, He Y, Chen W, Luo Q, Yuan WH, Tang X, Hou DY, Jiang DW, Wang QR. Beneficial effects of a novel shark-skin collagen dressing for the promotion of seawater immersion wound healing. Mil Med Res 2017; 4:33. [PMID: 29502521 PMCID: PMC5658943 DOI: 10.1186/s40779-017-0143-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Accepted: 10/12/2017] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND Wounded personnel who work at sea often encounter a plethora of difficulties. The most important of these difficulties is seawater immersion. Common medical dressings have little effect when the affected area is immersed in seawater, and only rarely dressings have been reported for the treatment of seawater-immersed wounds. The objective of this study is to develop a new dressing which should be suitable to prevent the wound from seawater immersion and to promote the wound healing. METHODS Shark skin collagen (SSC) was purified via ethanol de-sugaring and de-pigmentation and adjusted for pH. A shark skin collagen sponge (SSCS) was prepared by freeze-drying. SSCS was attached to an anti-seawater immersion polyurethane (PU) film (SSCS + PU) to compose a new dressing. The biochemical properties of SSC and physicochemical properties of SSCS were assessed by standard methods. The effects of SSCS and SSCS + PU on the healing of seawater-immersed wounds were studied using a seawater immersion rat model. For the detection of SSCS effects on seawater-immersed wounds, 12 SD rats, with four wounds created in each rat, were divided into four groups: the 3rd day group, 5th day group, 7th day group and 12th day group. In each group, six wounds were treated with SSCS, three wounds treated with chitosan served as the positive control, and three wounds treated with gauze served as the negative control. For the detection of the SSCS + PU effects on seawater-immersed wounds, 36 SD rats were divided into three groups: the gauze (GZ) + PU group, chitosan (CS) + PU group and SSCS + PU group, with 12 rats in each group, and two wounds in each rat. The wound sizes were measured to calculate the healing rate, and histomorphology and the immunohistochemistry of the CD31 and TGF-β expression levels in the wounded tissues were measured by standard methods. RESULTS The results of Ultraviolet-visible (UV-vis) spectrum, Fourier-transform infrared (FTIR) spectrum, circular dichroism (CD) spectra, sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE), and amino acid composition analyses of SSC demonstrated that SSC is type I collagen. SSCS had a homogeneous porous structure of approximately 200 μm, porosity rate of 83.57% ± 2.64%, water vapor transmission ratio (WVTR) of 4500 g/m2, tensile strength of 1.79 ± 0.41 N/mm, and elongation at break of 4.52% ± 0.01%. SSCS had significant beneficial effects on seawater-immersed wound healing. On the 3rd day, the healing rates in the GZ negative control, CS positive control and SSCS rats were 13.94% ± 5.50%, 29.40% ± 1.10% and 47.24% ± 8.40%, respectively. SSCS also enhanced TGF-β and CD31 expression in the initial stage of the healing period. The SSCS + PU dressing effectively protected wounds from seawater immersion for at least 4 h, and accelerated re-epithelialization, vascularization and granulation formation of seawater-immersed wounds in the earlier stages of wound healing, and as well as significantly promoted wound healing. The SSCS + PU dressing also enhanced expression of TGF-β and CD31. The effects of SSCS and SSCS + PU were superior to those of both the chitosan and gauze dressings. CONCLUSIONS SSCS has significant positive effects on the promotion of seawater-immersed wound healing, and a SSCS + PU dressing effectively prevents seawater immersion, and significantly promotes seawater-immersed wound healing.
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Affiliation(s)
- Xian-Rong Shen
- The PLA Key Laboratory of Biological Effect and Medical Protection on Naval Vessel Special Environment, Naval Medical Research Institute, Shanghai, 200433, China. .,College of Food Science and Technology, Shanghai Ocean University, Shanghai, 201306, China.
| | - Xiu-Li Chen
- The PLA Key Laboratory of Biological Effect and Medical Protection on Naval Vessel Special Environment, Naval Medical Research Institute, Shanghai, 200433, China.,College of Food Science and Technology, Shanghai Ocean University, Shanghai, 201306, China
| | - Hai-Xia Xie
- The PLA Key Laboratory of Biological Effect and Medical Protection on Naval Vessel Special Environment, Naval Medical Research Institute, Shanghai, 200433, China.,Research Center of TCM Processing Technology, Zhejiang Chinese Medical University, Hang Zhou, 311401, China
| | - Ying He
- The PLA Key Laboratory of Biological Effect and Medical Protection on Naval Vessel Special Environment, Naval Medical Research Institute, Shanghai, 200433, China
| | - Wei Chen
- The PLA Key Laboratory of Biological Effect and Medical Protection on Naval Vessel Special Environment, Naval Medical Research Institute, Shanghai, 200433, China
| | - Qun Luo
- The PLA Key Laboratory of Biological Effect and Medical Protection on Naval Vessel Special Environment, Naval Medical Research Institute, Shanghai, 200433, China
| | - Wei-Hong Yuan
- The PLA Key Laboratory of Biological Effect and Medical Protection on Naval Vessel Special Environment, Naval Medical Research Institute, Shanghai, 200433, China.,College of Food Science and Technology, Shanghai Ocean University, Shanghai, 201306, China
| | - Xue Tang
- The PLA Key Laboratory of Biological Effect and Medical Protection on Naval Vessel Special Environment, Naval Medical Research Institute, Shanghai, 200433, China.,College of Food Science and Technology, Shanghai Ocean University, Shanghai, 201306, China
| | - Deng-Yong Hou
- The PLA Key Laboratory of Biological Effect and Medical Protection on Naval Vessel Special Environment, Naval Medical Research Institute, Shanghai, 200433, China
| | - Ding-Wen Jiang
- The PLA Key Laboratory of Biological Effect and Medical Protection on Naval Vessel Special Environment, Naval Medical Research Institute, Shanghai, 200433, China
| | - Qing-Rong Wang
- The PLA Key Laboratory of Biological Effect and Medical Protection on Naval Vessel Special Environment, Naval Medical Research Institute, Shanghai, 200433, China
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8
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Falk P, Ruiz-Jasbon F, Strigård K, Gunnarsson U, Ivarsson ML. An ex vivo model using human peritoneum to explore mesh-tissue integration. Biol Open 2017; 6:1391-1395. [PMID: 28760734 PMCID: PMC5612232 DOI: 10.1242/bio.024992] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Biological compatibility, in terms of implantation of foreign mesh material in hernia surgery, still needs experimental investigation. The present study develops an experimental model using human peritoneum to study the integration between tissue and different mesh material. The ex vivo model using peritoneal tissue was studied with different mesh material, and integration was monitored over time using microscopy. The peritoneal model could be kept viable in culture for several weeks. Cell migration was seen after 7-10 days in culture and could be further monitored over several weeks. The use of a human artificial model environment enabling the investigation of tissue/mesh integration has, to our knowledge, not been described previously. This proof-of-concept model was developed for the investigation of peritoneal biology and the integration between tissue and different mesh material. It has the potential to be useful in studies on other important biological mechanisms involving the peritoneum. Summary: This study developed a human experimental model for long-term studies using peritoneal tissue to evaluate integration with different materials, such as synthetic meshes.
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Affiliation(s)
- Peter Falk
- Department of Surgery, Institute of Clinical Sciences, Sahlgrenska Academy at University of Gothenburg, SE-416 85 Göteborg, Sweden
| | - Fernando Ruiz-Jasbon
- Department of Surgery, Institute of Clinical Sciences, Sahlgrenska Academy at University of Gothenburg, SE-416 85 Göteborg, Sweden.,Department of Surgery, Hallands Hospital, SE- 434 80 Kungsbacka, Sweden
| | - Karin Strigård
- Department of Surgical and Perioperative Sciences, Umeå University, SE-901 85 Umeå, Sweden
| | - Ulf Gunnarsson
- Department of Surgical and Perioperative Sciences, Umeå University, SE-901 85 Umeå, Sweden
| | - Marie-Lois Ivarsson
- Department of Surgery, Institute of Clinical Sciences, Sahlgrenska Academy at University of Gothenburg, SE-416 85 Göteborg, Sweden
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Atta HM, Al-Hendy AA, Abdel Raheim SR, Abdel-Ghany H, Nasif KA, Abdellah AM, Zenhom NM, Kamel HS. Modified Adenovirus Reduces De Novo Peritoneal Adhesions in Rats and Limits Off-Target Transfection. Role of EZH2 in Adhesion Formation. J INVEST SURG 2016; 30:78-87. [PMID: 27690696 DOI: 10.1080/08941939.2016.1229366] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
AIM OF THE STUDY Adenovector encoding tissue plasminogen activator (tPA) was shown to reduce experimental peritoneal adhesion. We investigated the targeting potential of our modified adenovector, its ability to reduce adhesions and the epigenetic role of histone methyltransferase EZH2 in adhesion formation. MATERIALS AND METHODS Control lacZ, nonmodified tPA or modified tPA vectors were instilled in the peritoneal cavity after injury in de novo adhesions or after lysis of adhesions in recurrent adhesions. Adhesion severity was scored and adhesions and liver tissues were examined for adenovirus E4 gene and tPA mRNA expression. Levels of tPA, plasminogen activator inhibitor-1 (PAI-1), transforming growth factor-β1 (TGF-β1), and EZH2 expression were measured. RESULTS E4 transcripts were detected in adhesions of nonmodified and modified and in livers of nonmodified but not in livers of modified de novo adhesions. Both nonmodified (p = 0.021) and modified vectors (p = 0.036) reduced the severity of de novo adhesions compared to lacZ vector. Levels of tPA in nonmodified (p = 0.021) and modified adhesions (p = 0.001) were elevated while PAI-1 (p = 0.013 and p = 0.001, respectively) and TGF-β1 levels (p = 0.002 and p = 0.016, respectively) were reduced compared with lacZ group. All vectors were not expressed in recurrent adhesions and severity score were not different among groups. EZH2 levels were elevated in de novo nontreated (p = 0.001) and was further increased in recurrent (p = 0.001) nontreated adhesions compared with noninjured peritoneum. CONCLUSION Modified adenovirus successfully targeted de novo adhesions but not liver tissues and reduced the severity of de novo adhesions. EZH2 is involved in the development and progression of peritoneal adhesions.
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Affiliation(s)
- Hussein M Atta
- a Department of Surgery , Faculty of Medicine, Minia University , El-Minia , Egypt
| | - Ayman A Al-Hendy
- b Department of Obstetrics and Gynecology , Georgia Regents University , Augusta , Georgia , USA
| | - Salama R Abdel Raheim
- c Department of Biochemistry , Faculty of Medicine, Minia University , El-Minia , Egypt
| | - Hend Abdel-Ghany
- c Department of Biochemistry , Faculty of Medicine, Minia University , El-Minia , Egypt
| | - Khalid A Nasif
- c Department of Biochemistry , Faculty of Medicine, Minia University , El-Minia , Egypt
| | - Ahlam M Abdellah
- c Department of Biochemistry , Faculty of Medicine, Minia University , El-Minia , Egypt
| | - Nagwa M Zenhom
- c Department of Biochemistry , Faculty of Medicine, Minia University , El-Minia , Egypt
| | - Heba S Kamel
- c Department of Biochemistry , Faculty of Medicine, Minia University , El-Minia , Egypt
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10
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Muzio G, Perero S, Miola M, Oraldi M, Ferraris S, Vernè E, Festa F, Canuto RA, Festa V, Ferraris M. Biocompatibility versus peritoneal mesothelial cells of polypropylene prostheses for hernia repair, coated with a thin silica/silver layer. J Biomed Mater Res B Appl Biomater 2016; 105:1586-1593. [DOI: 10.1002/jbm.b.33697] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Revised: 03/29/2016] [Accepted: 04/06/2016] [Indexed: 01/16/2023]
Affiliation(s)
- Giuliana Muzio
- Department of Clinical and Biological Sciences; University of Turin; 10125 Turin Italy
| | - Sergio Perero
- Department of Applied Science and Technology; Politecnico of Turin; 24 10129 Turin Italy
| | - Marta Miola
- Department of Applied Science and Technology; Politecnico of Turin; 24 10129 Turin Italy
- Department of Health Sciences; University “Amedeo Avogadro” of East Piedmont; Novara Italy
| | - Manuela Oraldi
- Department of Clinical and Biological Sciences; University of Turin; 10125 Turin Italy
| | - Sara Ferraris
- Department of Applied Science and Technology; Politecnico of Turin; 24 10129 Turin Italy
| | - Enrica Vernè
- Department of Applied Science and Technology; Politecnico of Turin; 24 10129 Turin Italy
| | - Federico Festa
- Department of Surgical Sciences; University of Turin; 10126 Turin Italy
| | - Rosa Angela Canuto
- Department of Clinical and Biological Sciences; University of Turin; 10125 Turin Italy
| | - Valentino Festa
- Department of Surgical Sciences; University of Turin; 10126 Turin Italy
| | - Monica Ferraris
- Department of Applied Science and Technology; Politecnico of Turin; 24 10129 Turin Italy
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11
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Beyene RT, Kavalukas SL, Barbul A. Intra-abdominal adhesions: Anatomy, physiology, pathophysiology, and treatment. Curr Probl Surg 2015; 52:271-319. [PMID: 26258583 DOI: 10.1067/j.cpsurg.2015.05.001] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Accepted: 05/12/2015] [Indexed: 12/18/2022]
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12
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Transplantation of Encapsulated Pancreatic Islets as a Treatment for Patients with Type 1 Diabetes Mellitus. Adv Med 2014; 2014:429710. [PMID: 26556410 PMCID: PMC4590955 DOI: 10.1155/2014/429710] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2013] [Accepted: 11/30/2013] [Indexed: 12/19/2022] Open
Abstract
Encapsulation of pancreatic islets has been proposed and investigated for over three decades to improve islet transplantation outcomes and to eliminate the side effects of immunosuppressive medications. Of the numerous encapsulation systems developed in the past, microencapsulation have been studied most extensively so far. A wide variety of materials has been tested for microencapsulation in various animal models (including nonhuman primates or NHPs) and some materials were shown to induce immunoprotection to islet grafts without the need for chronic immunosuppression. Despite the initial success of microcapsules in NHP models, the combined use of islet transplantation (allograft) and microencapsulation has not yet been successful in clinical trials. This review consists of three sections: introduction to islet transplantation, transplantation of encapsulated pancreatic islets as a treatment for patients with type 1 diabetes mellitus (T1DM), and present challenges and future perspectives.
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