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Pseftogas A, Xanthopoulos K, Siasiaridis A, Poutahidis T, Gonidas C, Tsingotjidou A, Hatzivassiliou E, Mosialos G. Inactivation of the Tumor Suppressor CYLD Sensitizes Mice to Breast Cancer Development. Anticancer Res 2024; 44:1885-1894. [PMID: 38677721 DOI: 10.21873/anticanres.16990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2024] [Revised: 03/31/2024] [Accepted: 04/01/2024] [Indexed: 04/29/2024]
Abstract
BACKGROUND/AIM Breast cancer is a leading cause of cancer-related deaths among women. Down-regulation of the tumor suppressor gene Cyld in breast cancer has been linked to a poor prognosis. This study investigated the role of Cyld in breast cancer using conditional mutant mouse models carrying a Cyld mutation, which inactivates the deubiquitinating activity of its protein product CYLD in mammary epithelial cells. MATERIALS AND METHODS We examined the potential of CYLD inactivation to induce mammary tumors spontaneously or modify the susceptibility of mice to mammary tumorigenesis by DMBA treatment or ErbB2 over-expression. RESULTS CYLD inactivation significantly increased susceptibility to breast cancer induced by either DMBA treatment or ErbB2 over-expression. Moreover, while CYLD inactivation alone did not lead to spontaneous mammary tumorigenesis, it did contribute to the formation of multifocal hyperplastic lesions in virgin mice of predominantly FVB/NJ background. CONCLUSION Our study demonstrates the tumor enhancing potential of CYLD inactivation in mammary tumorigenesis in vivo and establishes novel relevant mouse models that can be exploited for developing prognostic and therapeutic protocols.
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Affiliation(s)
| | - Konstantinos Xanthopoulos
- School of Biology, Aristotle University of Thessaloniki, Thessaloniki, Greece
- School of Pharmacy, Aristotle University of Thessaloniki, Thessaloniki, Greece
- Institute of Applied Biosciences, Centre for Research and Technology, Thessaloniki, Greece
| | | | - Theofilos Poutahidis
- School of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Christos Gonidas
- School of Biology, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Anastasia Tsingotjidou
- School of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | | | - George Mosialos
- School of Biology, Aristotle University of Thessaloniki, Thessaloniki, Greece;
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2
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Afaloniati H, Aindelis G, Spyridopoulou K, Lagou MK, Tsingotjidou A, Chlichlia K, Erdman SE, Poutahidis T, Angelopoulou K. Peri-weaning cholera toxin consumption suppresses chemically-induced carcinogenesis in mice. Int J Cancer 2024; 154:1097-1110. [PMID: 38095490 DOI: 10.1002/ijc.34816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 10/27/2023] [Accepted: 11/17/2023] [Indexed: 01/23/2024]
Abstract
Gastrointestinal bacteria are known to have an impact on local and systemic immunity, and consequently either promote or suppress cancer development. Following the notion that perinatal bacterial exposure might confer immune system competency for life, we investigated whether early-life administration of cholera-toxin (CT), a protein exotoxin of the small intestine pathogenic bacterium Vibrio cholerae, may shape local and systemic immunity to impart a protective effect against tumor development in epithelia distantly located from the gut. For that, newborn mice were orally treated with low non-pathogenic doses of CT and later challenged with the carcinogen 7,12-dimethylbenzanthracene (DMBA), known to cause mainly mammary, but also skin, lung and stomach cancer. Our results revealed that CT suppressed the overall incidence and multiplicity of tumors, with varying efficiencies among cancer types, and promoted survival. Harvesting mouse tissues at an earlier time-point (105 instead of 294 days), showed that CT does not prevent preneoplastic lesions per se but it rather hinders their evolution into tumors. CT pretreatment universally increased apoptosis in the cancer-prone mammary, lung and nonglandular stomach, and altered the expression of several cancer-related molecules. Moreover, CT had a long-term effect on immune system cells and factors, the most prominent being the systemic neutrophil decrease. Finally, CT treatment significantly affected gut bacterial flora composition, leading among others to a major shift from Clostridia to Bacilli class abundance. Overall, these results support the notion that early-life CT consumption is able to affect host's immune, microbiome and gene expression profiles toward the prevention of cancer.
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Affiliation(s)
- Hara Afaloniati
- Laboratory of Biochemistry and Toxicology, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Georgios Aindelis
- Department of Molecular Biology and Genetics, Democritus University of Thrace, University Campus Dragana, Alexandroupolis, Greece
| | - Katerina Spyridopoulou
- Department of Molecular Biology and Genetics, Democritus University of Thrace, University Campus Dragana, Alexandroupolis, Greece
| | - Maria K Lagou
- Laboratory of Pathology, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Anastasia Tsingotjidou
- Laboratory of Anatomy, Histology and Embryology, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Katerina Chlichlia
- Department of Molecular Biology and Genetics, Democritus University of Thrace, University Campus Dragana, Alexandroupolis, Greece
| | - Suzan E Erdman
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Theofilos Poutahidis
- Laboratory of Pathology, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Katerina Angelopoulou
- Laboratory of Biochemistry and Toxicology, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
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Lagou MK, Argyris DG, Vodopyanov S, Gunther-Cummins L, Hardas A, Poutahidis T, Panorias C, DesMarais S, Entenberg C, Carpenter RS, Guzik H, Nishku X, Churaman J, Maryanovich M, DesMarais V, Macaluso FP, Karagiannis GS. Morphometric Analysis of the Thymic Epithelial Cell (TEC) Network Using Integrated and Orthogonal Digital Pathology Approaches. bioRxiv 2024:2024.03.11.584509. [PMID: 38559037 PMCID: PMC10979902 DOI: 10.1101/2024.03.11.584509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
The thymus, a central primary lymphoid organ of the immune system, plays a key role in T cell development. Surprisingly, the thymus is quite neglected with regards to standardized pathology approaches and practices for assessing structure and function. Most studies use multispectral flow cytometry to define the dynamic composition of the thymus at the cell population level, but they are limited by lack of contextual insight. This knowledge gap hinders our understanding of various thymic conditions and pathologies, particularly how they affect thymic architecture, and subsequently, immune competence. Here, we introduce a digital pathology pipeline to address these challenges. Our approach can be coupled to analytical algorithms and utilizes rationalized morphometric assessments of thymic tissue, ranging from tissue-wide down to microanatomical and ultrastructural levels. This pipeline enables the quantitative assessment of putative changes and adaptations of thymic structure to stimuli, offering valuable insights into the pathophysiology of thymic disorders. This versatile pipeline can be applied to a wide range of conditions that may directly or indirectly affect thymic structure, ranging from various cytotoxic stimuli inducing acute thymic involution to autoimmune diseases, such as myasthenia gravis. Here, we demonstrate applicability of the method in a mouse model of age-dependent thymic involution, both by confirming established knowledge, and by providing novel insights on intrathymic remodeling in the aged thymus. Our orthogonal pipeline, with its high versatility and depth of analysis, promises to be a valuable and practical toolset for both basic and translational immunology laboratories investigating thymic function and disease.
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Affiliation(s)
- Maria K Lagou
- Department of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, NY, USA
- Tumor Microenvironment and Metastasis Program, Montefiore-Einstein Comprehensive Cancer Center, Bronx, NY, USA
| | - Dimitrios G Argyris
- Department of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, NY, USA
- Tumor Microenvironment and Metastasis Program, Montefiore-Einstein Comprehensive Cancer Center, Bronx, NY, USA
- Integrated Imaging Program for Cancer Research, Montefiore-Einstein Comprehensive Cancer Center, Bronx, NY, USA
| | - Stepan Vodopyanov
- Department of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, NY, USA
- Tumor Microenvironment and Metastasis Program, Montefiore-Einstein Comprehensive Cancer Center, Bronx, NY, USA
| | - Leslie Gunther-Cummins
- Gruss-Lipper Biophotonics Center, Albert Einstein College of Medicine, Bronx, NY, USA
- Analytical Imaging Facility, Albert Einstein College of Medicine, Bronx, NY, USA
- Department of Cell Biology, Albert Einstein College of Medicine, Bronx, NY, USA
- Montefiore-Einstein Comprehensive Cancer, Center, Bronx, NY, USA
| | - Alexandros Hardas
- Department of Pathobiology and Population Sciences, The Royal Veterinary College, North Mymms, Hatfield, United Kingdom
| | - Theofilos Poutahidis
- Laboratory of Pathology, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Christos Panorias
- Division of Statistics and Operational Research, Department of Mathematics, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Sophia DesMarais
- Department of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Conner Entenberg
- Department of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Randall S Carpenter
- Department of Cell Biology, Albert Einstein College of Medicine, Bronx, NY, USA
- Ruth L. and David S. Gottesman Institute for Stem Cell and Regenerative Medicine, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Hillary Guzik
- Gruss-Lipper Biophotonics Center, Albert Einstein College of Medicine, Bronx, NY, USA
- Analytical Imaging Facility, Albert Einstein College of Medicine, Bronx, NY, USA
- Montefiore-Einstein Comprehensive Cancer, Center, Bronx, NY, USA
| | - Xheni Nishku
- Gruss-Lipper Biophotonics Center, Albert Einstein College of Medicine, Bronx, NY, USA
- Analytical Imaging Facility, Albert Einstein College of Medicine, Bronx, NY, USA
- Montefiore-Einstein Comprehensive Cancer, Center, Bronx, NY, USA
| | - Joseph Churaman
- Gruss-Lipper Biophotonics Center, Albert Einstein College of Medicine, Bronx, NY, USA
- Analytical Imaging Facility, Albert Einstein College of Medicine, Bronx, NY, USA
- Montefiore-Einstein Comprehensive Cancer, Center, Bronx, NY, USA
| | - Maria Maryanovich
- Department of Cell Biology, Albert Einstein College of Medicine, Bronx, NY, USA
- Ruth L. and David S. Gottesman Institute for Stem Cell and Regenerative Medicine, Albert Einstein College of Medicine, Bronx, NY, USA
- Cancer Dormancy and Tumor Microenvironment Institute, Montefiore-Einstein Comprehensive Cancer, Center, Bronx, NY, USA
| | - Vera DesMarais
- Gruss-Lipper Biophotonics Center, Albert Einstein College of Medicine, Bronx, NY, USA
- Analytical Imaging Facility, Albert Einstein College of Medicine, Bronx, NY, USA
- Department of Cell Biology, Albert Einstein College of Medicine, Bronx, NY, USA
- Montefiore-Einstein Comprehensive Cancer, Center, Bronx, NY, USA
| | - Frank P Macaluso
- Gruss-Lipper Biophotonics Center, Albert Einstein College of Medicine, Bronx, NY, USA
- Analytical Imaging Facility, Albert Einstein College of Medicine, Bronx, NY, USA
- Department of Cell Biology, Albert Einstein College of Medicine, Bronx, NY, USA
- Montefiore-Einstein Comprehensive Cancer, Center, Bronx, NY, USA
| | - George S Karagiannis
- Department of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, NY, USA
- Tumor Microenvironment and Metastasis Program, Montefiore-Einstein Comprehensive Cancer Center, Bronx, NY, USA
- Integrated Imaging Program for Cancer Research, Montefiore-Einstein Comprehensive Cancer Center, Bronx, NY, USA
- Gruss-Lipper Biophotonics Center, Albert Einstein College of Medicine, Bronx, NY, USA
- Cancer Dormancy and Tumor Microenvironment Institute, Montefiore-Einstein Comprehensive Cancer, Center, Bronx, NY, USA
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4
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Iatrou AM, Michailidou S, Papadopoulos GA, Afaloniati H, Lagou MK, Kiritsi M, Argiriou A, Angelopoulou K, Poutahidis T, Fortomaris P. Effects of Dietary Supplementation of Spirulina platensis on the Immune System, Intestinal Bacterial Microbiome and Skin Traits of Mink. Animals (Basel) 2023; 13:ani13020190. [PMID: 36670730 PMCID: PMC9854837 DOI: 10.3390/ani13020190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 12/29/2022] [Accepted: 12/30/2022] [Indexed: 01/06/2023] Open
Abstract
The impact of dietary inclusion of Spirulina platensis on the immune system, intestinal microbiome and skin of mink was investigated. Forty-eight animals were equally separated into four groups. Groups B and D were control animals, while groups A and C had their feed supplemented daily with 100 mg/kg of body weight Spirulina. Mink in groups A and B were descended from dams supplemented with spirulina during their reproductive period, while those in groups C and D were descended from dams fed the control diets. Fur growth rate and quality were graded semi-quantitatively. Fecal microbiome analysis, skin thickness histomorphometry, immunohistochemical labeling and counts of immune cells in the colon, mesenteric lymph nodes and spleen and quantitative gene expression analysis of cytokines in the colon were performed. Skin thickness, fur growth rate and skin quality were similar among groups (p > 0.05). However, differences were observed among groups concerning the relative and differential abundance of bacterial species. Tgf-β expression was lower in group A, whereas IL-β1 was lower in group C compared to group B (p < 0.05). Group D had significantly lower numbers of inflammatory cells in the colon and mesenteric lymph nodes. The results revealed that Spirulina decreased indices of subclinical inflammation in mink gut, while differences in the bacterial communities among groups were observed.
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Affiliation(s)
- Anna Maria Iatrou
- Laboratory of Animal Husbandry, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
- Correspondence: ; Tel.: +30-2310999958
| | - Sofia Michailidou
- Center for Research and Technology, Hellas Institute of Applied Biosciences, Thermi, 57001 Thessaloniki, Greece
| | - Georgios A. Papadopoulos
- Laboratory of Animal Husbandry, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Hara Afaloniati
- Laboratory of Biochemistry and Toxicology, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Maria K. Lagou
- Laboratory of Pathology, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Maria Kiritsi
- Center for Research and Technology, Hellas Institute of Applied Biosciences, Thermi, 57001 Thessaloniki, Greece
| | - Anagnostis Argiriou
- Center for Research and Technology, Hellas Institute of Applied Biosciences, Thermi, 57001 Thessaloniki, Greece
- Department of Food Science and Nutrition, University of the Aegean, 81400 Lemnos, Greece
| | - Katerina Angelopoulou
- Laboratory of Biochemistry and Toxicology, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Theofilos Poutahidis
- Laboratory of Pathology, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Paschalis Fortomaris
- Laboratory of Animal Husbandry, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
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5
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Papadopoulos GA, Poutahidis T, Chalvatzi S, Kroustallas F, Karavanis E, Fortomaris P. Effects of a tributyrin and monolaurin blend compared to high ZnO levels on growth performance, faecal microbial counts, intestinal histomorphometry and immunohistochemistry in weaned piglets: A field study in two pig herds. Res Vet Sci 2022; 144:54-65. [DOI: 10.1016/j.rvsc.2022.01.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 09/08/2021] [Accepted: 01/12/2022] [Indexed: 01/20/2023]
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6
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Apostolopoulou EP, Vlemmas I, Pardali D, Adamama-Moraitou KK, Poutahidis T, Papadopoulou PL, Brellou GD. Bilateral Renal Large B Cell Lymphoma in a Dog: A Case Report and Review of the Literature. Vet Sci 2021; 8:vetsci8110258. [PMID: 34822631 PMCID: PMC8624832 DOI: 10.3390/vetsci8110258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 10/25/2021] [Accepted: 10/27/2021] [Indexed: 11/16/2022] Open
Abstract
Canine lymphoma is a commonly reported neoplasia and, in most dogs, arises from lymph nodes before spreading to other organs. Renal lymphoma rarely occurs, and kidneys usually are a secondary site of origin. Primary renal lymphoma is infrequently described in the veterinary literature. In this study, we present a rare case of primary renal lymphoma in a dog and a review of similar cases. A 3-year-old male dog was admitted due to anorexia, weakness and vomiting. Clinical examination revealed bilaterally enlarged kidneys. Imaging demonstrated the presence of multiple renal masses. Cytology of abdominal fluid and kidneys led to the diagnosis of large cell lymphoma. Histopathology and immunohistochemistry on tissue samples taken from the kidneys confirmed the cytological diagnosis of lymphoma and categorized it as primary bilateral renal large B-cell lymphoma (LBCL).
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Affiliation(s)
- Emmanouela P. Apostolopoulou
- Department of Pathology, Faculty of Health Sciences, School of Veterinary Medicine, Aristotle University of Thessaloniki, 54627 Thessaloniki, Greece; (E.P.A.); (I.V.); (T.P.)
| | - Ioannis Vlemmas
- Department of Pathology, Faculty of Health Sciences, School of Veterinary Medicine, Aristotle University of Thessaloniki, 54627 Thessaloniki, Greece; (E.P.A.); (I.V.); (T.P.)
| | - Dimitra Pardali
- Diagnostic Laboratory, Faculty of Health Sciences, School of Veterinary Medicine, Aristotle University of Thesssaloniki, 54627 Thessaloniki, Greece;
| | - Katerina K. Adamama-Moraitou
- Companion Animal Clinic (Medicine Unit), Faculty of Health Sciences, School of Veterinary Medicine, Aristotle University of Thesssaloniki, 54627 Thessaloniki, Greece;
| | - Theofilos Poutahidis
- Department of Pathology, Faculty of Health Sciences, School of Veterinary Medicine, Aristotle University of Thessaloniki, 54627 Thessaloniki, Greece; (E.P.A.); (I.V.); (T.P.)
| | - Paraskevi L. Papadopoulou
- Department of Diagnostic Imaging, Faculty of Health Sciences, School of Veterinary Medicine, Aristotle University of Thesssaloniki, 54627 Thessaloniki, Greece;
| | - Georgia D. Brellou
- Department of Pathology, Faculty of Health Sciences, School of Veterinary Medicine, Aristotle University of Thessaloniki, 54627 Thessaloniki, Greece; (E.P.A.); (I.V.); (T.P.)
- Correspondence:
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7
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Chaintoutis SC, Thomou Z, Mouchtaropoulou E, Tsiolas G, Chassalevris T, Stylianaki I, Lagou M, Michailidou S, Moutou E, Koenen JJH, Dijkshoorn JW, Paraskevis D, Poutahidis T, Siarkou VI, Sypsa V, Argiriou A, Fortomaris P, Dovas CI. Outbreaks of SARS-CoV-2 in naturally infected mink farms: Impact, transmission dynamics, genetic patterns, and environmental contamination. PLoS Pathog 2021; 17:e1009883. [PMID: 34492088 PMCID: PMC8448373 DOI: 10.1371/journal.ppat.1009883] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 09/17/2021] [Accepted: 08/10/2021] [Indexed: 12/14/2022] Open
Abstract
SARS-CoV-2 infection outbreaks in minks have serious implications associated with animal health and welfare, and public health. In two naturally infected mink farms (A and B) located in Greece, we investigated the outbreaks and assessed parameters associated with virus transmission, immunity, pathology, and environmental contamination. Symptoms ranged from anorexia and mild depression to respiratory signs of varying intensity. Although the farms were at different breeding stages, mortality was similarly high (8.4% and 10.0%). The viral strains belonged to lineages B.1.1.218 and B.1.1.305, possessing the mink-specific S-Y453F substitution. Lung histopathology identified necrosis of smooth muscle and connective tissue elements of vascular walls, and vasculitis as the main early key events of the acute SARS-CoV-2-induced broncho-interstitial pneumonia. Molecular investigation in two dead minks indicated a consistently higher (0.3-1.3 log10 RNA copies/g) viral load in organs of the male mink compared to the female. In farm A, the infected farmers were responsible for the significant initial infection of 229 out of 1,000 handled minks, suggesting a very efficient human-to-mink transmission. Subsequent infections across the sheds wherein animals were being housed occurred due to airborne transmission. Based on a R0 of 2.90 and a growth rate equal to 0.293, the generation time was estimated to be 3.6 days, indicative of the massive SARS-CoV-2 dispersal among minks. After the end of the outbreaks, a similar percentage of animals were immune in the two farms (93.0% and 93.3%), preventing further virus transmission whereas, viral RNA was detected in samples collected from shed surfaces and air. Consequently, strict biosecurity is imperative during the occurrence of clinical signs. Environmental viral load monitoring, in conjunction with NGS should be adopted in mink farm surveillance. The minimum proportion of minks that need to be immunized to avoid outbreaks in farms was calculated at 65.5%, which is important for future vaccination campaigns.
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Affiliation(s)
- Serafeim C. Chaintoutis
- Diagnostic Laboratory, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Zoi Thomou
- Pecon Hellas PC, Dispilio, Kastoria, Greece
| | | | - George Tsiolas
- Institute of Applied Biosciences, Centre of Research and Technology Hellas, Thermi, Greece
| | - Taxiarchis Chassalevris
- Diagnostic Laboratory, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Ioanna Stylianaki
- Laboratory of Pathology, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Maria Lagou
- Laboratory of Pathology, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Sofia Michailidou
- Institute of Applied Biosciences, Centre of Research and Technology Hellas, Thermi, Greece
| | - Evangelia Moutou
- Diagnostic Laboratory, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | | | | | - Dimitrios Paraskevis
- Department of Hygiene, Epidemiology and Medical Statistics, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Theofilos Poutahidis
- Laboratory of Pathology, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Victoria I. Siarkou
- Laboratory of Microbiology and Infectious Diseases, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Vana Sypsa
- Department of Hygiene, Epidemiology and Medical Statistics, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Anagnostis Argiriou
- Institute of Applied Biosciences, Centre of Research and Technology Hellas, Thermi, Greece
- Department of Food Science and Nutrition, University of the Aegean, Myrina, Greece
| | - Paschalis Fortomaris
- Laboratory of Animal Husbandry, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Chrysostomos I. Dovas
- Diagnostic Laboratory, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
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8
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Kay JE, Mirabal S, Briley WE, Kimoto T, Poutahidis T, Ragan T, So PT, Wadduwage DN, Erdman SE, Engelward BP. Analysis of mutations in tumor and normal adjacent tissue via fluorescence detection. Environ Mol Mutagen 2021; 62:108-123. [PMID: 33314311 PMCID: PMC7880898 DOI: 10.1002/em.22419] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 12/04/2020] [Accepted: 12/11/2020] [Indexed: 06/12/2023]
Abstract
Inflammation is a major risk factor for many types of cancer, including colorectal. There are two fundamentally different mechanisms by which inflammation can contribute to carcinogenesis. First, reactive oxygen and nitrogen species (RONS) can damage DNA to cause mutations that initiate cancer. Second, inflammatory cytokines and chemokines promote proliferation, migration, and invasion. Although it is known that inflammation-associated RONS can be mutagenic, the extent to which they induce mutations in intestinal stem cells has been little explored. Furthermore, it is now widely accepted that cancer is caused by successive rounds of clonal expansion with associated de novo mutations that further promote tumor development. As such, we aimed to understand the extent to which inflammation promotes clonal expansion in normal and tumor tissue. Using an engineered mouse model that is prone to cancer and within which mutant cells fluoresce, here we have explored the impact of inflammation on de novo mutagenesis and clonal expansion in normal and tumor tissue. While inflammation is strongly associated with susceptibility to cancer and a concomitant increase in the overall proportion of mutant cells in the tissue, we did not observe an increase in mutations in normal adjacent tissue. These results are consistent with opportunities for de novo mutations and clonal expansion during tumor growth, and they suggest protective mechanisms that suppress the risk of inflammation-induced accumulation of mutant cells in normal tissue.
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Affiliation(s)
- Jennifer E. Kay
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA
| | - Sheyla Mirabal
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA
| | | | - Takafumi Kimoto
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA
| | - Theofilos Poutahidis
- Laboratory of Pathology, Faculty of Veterinary Medicine, School of Health Sciences, Aristotle University of Thessaloniki, Greece
| | | | - Peter T. So
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA
| | - Dushan N. Wadduwage
- The John Harvard Distinguished Science Fellows Program, Harvard University, Cambridge, MA
- Center for Advanced Imaging, Harvard University, Cambridge, MA, USA
| | - Susan E. Erdman
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA
| | - Bevin P. Engelward
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA
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9
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Afaloniati H, Angelopoulou K, Giakoustidis A, Hardas A, Pseftogas A, Makedou K, Gargavanis A, Goulopoulos T, Iliadis S, Papadopoulos V, Papalois A, Mosialos G, Poutahidis T, Giakoustidis D. HDAC1/2 Inhibitor Romidepsin Suppresses DEN-Induced Hepatocellular Carcinogenesis in Mice. Onco Targets Ther 2020; 13:5575-5588. [PMID: 32606772 PMCID: PMC7304783 DOI: 10.2147/ott.s250233] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 05/27/2020] [Indexed: 12/24/2022] Open
Abstract
Background Hepatocellular carcinoma (HCC) is a frequently diagnosed cancer and a leading cause of cancer-related death worldwide. Its rapid progression, combined with the limited treatment options at late stages, imposes the need for early detection and aggressive intervention. Based on the knowledge that hepatocarcinogenesis is significantly influenced by histone acetylation, we directed our search for novel HCC therapeutics among histone deacetylation inhibitors (HDACi). The aim of the present study was to investigate the effect of HDAC1/2 inhibitor Romidepsin in the well-established mouse model of diethylnitrosamine (DEN)-induced HCC. Materials and Methods C56BL/6 mice were treated with Romidepsin at the critical point of 10 months after DEN challenge and their livers were examined 2 months later using histopathology and morphometry. Protein levels were assessed in serum using ELISA and in liver tissues using Western blot and immunohistochemistry (in-situ detection). Gene expression was quantified using real-time PCR. Results Romidepsin suppressed cancer progression. This effect was associated with decreased proliferation and increased apoptosis of cancer cells. The cell cycle regulator CK2a, the anti-inflammatory molecule PPAR-γ, and the tumor suppressors PTEN and CYLD were upregulated in treated HCC. By contrast, the expression of PI3K, NF-κB p65 and c-Jun was reduced. In line with this result, the levels of two major apoptosis regulators, ie, BAD and the multifunctional protein c-Met, were lower in the blood serum of treated mice compared to the untreated mice with HCC. Conclusion These findings suggest that Romidepsin, a drug currently used in the treatment of lymphoma, could also be considered in the management of early-stage HCC.
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Affiliation(s)
- Hara Afaloniati
- Laboratory of Biochemistry and Toxicology, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Katerina Angelopoulou
- Laboratory of Biochemistry and Toxicology, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Alexander Giakoustidis
- First Department of Surgery, Medical School, Aristotle University of Thessaloniki, General Hospital Papageorgiou, Thessaloniki, Greece
| | - Alexandros Hardas
- Laboratory of Pathology, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Athanasios Pseftogas
- School of Biology, Faculty of Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Kali Makedou
- Department of Biological Chemistry, Medical School, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Athanasios Gargavanis
- First Department of Surgery, Medical School, Aristotle University of Thessaloniki, General Hospital Papageorgiou, Thessaloniki, Greece
| | - Thomas Goulopoulos
- First Department of Surgery, Medical School, Aristotle University of Thessaloniki, General Hospital Papageorgiou, Thessaloniki, Greece
| | - Stavros Iliadis
- Department of Biological Chemistry, Medical School, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Vasileios Papadopoulos
- First Department of Surgery, Medical School, Aristotle University of Thessaloniki, General Hospital Papageorgiou, Thessaloniki, Greece
| | - Apostolos Papalois
- Experimental, Educational and Research Center, ELPEN, Pikermi, Attica, Greece
| | - George Mosialos
- School of Biology, Faculty of Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Theofilos Poutahidis
- Laboratory of Pathology, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Dimitrios Giakoustidis
- First Department of Surgery, Medical School, Aristotle University of Thessaloniki, General Hospital Papageorgiou, Thessaloniki, Greece
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10
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Varian BJ, Poutahidis T, Haner G, Hardas A, Lau V, Erdman SE. Consuming cholera toxin counteracts age-associated obesity. Oncotarget 2019; 10:5497-5509. [PMID: 31565184 PMCID: PMC6756858 DOI: 10.18632/oncotarget.27137] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Accepted: 07/05/2019] [Indexed: 12/11/2022] Open
Abstract
During the past forty years there has been an inexplicable increase in chronic inflammatory disorders, including obesity. One theory, the ‘hygiene hypothesis’, involves dysregulated immunity arising after too few beneficial early life microbe exposures. Indeed, earlier studies have shown that gut microbe-immune interactions contribute to smoldering inflammation, adiposity, and weight gain. Here we tested a safe and well-established microbe-based immune adjuvant to restore immune homeostasis and counteract inflammation-associated obesity in animal models. We found that consuming Vibrio cholerae exotoxin subunit B (ctB) was sufficient to inhibit age-associated obesogenic outcomes in wild type mice, including reduced crown-like structures (CLS) and granulomatous necrosis histopathology in fat depots. Administration of cholera toxin reduced weight gain irrespective of age during administration; however, exposure during youth imparted greater slenderizing effects when compared with animals receiving ctB for the first time during adulthood. Beneficial effects were transplantable to other obesity-prone animals using immune cells alone, demonstrating an immune-mediated mechanism. Taken together, we concluded that oral vaccination with cholera toxin B helps stimulate health-protective immune responses that counteract age-associated obesity.
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Affiliation(s)
- Bernard J Varian
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA 02139, United States
| | - Theofilos Poutahidis
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA 02139, United States.,Department of infectious Diseases and Pathology, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, 54124, Greece
| | - Gordon Haner
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA 02139, United States
| | - Alex Hardas
- Department of infectious Diseases and Pathology, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, 54124, Greece
| | - Vanessa Lau
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA 02139, United States
| | - Susan E Erdman
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA 02139, United States
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11
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Varian BJ, Gourishetti S, Poutahidis T, Lakritz JR, Levkovich T, Kwok C, Teliousis K, Ibrahim YM, Mirabal S, Erdman SE. Correction: Beneficial bacteria inhibit cachexia. Oncotarget 2018; 9:29536. [PMID: 30034637 PMCID: PMC6047667 DOI: 10.18632/oncotarget.25750] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
[This corrects the article DOI: 10.18632/oncotarget.7730.].
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Affiliation(s)
- Bernard J Varian
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Sravya Gourishetti
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Theofilos Poutahidis
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, USA.,Laboratory of Pathology, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Jessica R Lakritz
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Tatiana Levkovich
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Caitlin Kwok
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Konstantinos Teliousis
- Laboratory of Pathology, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Yassin M Ibrahim
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Sheyla Mirabal
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Susan E Erdman
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, USA
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12
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Flandroy L, Poutahidis T, Berg G, Clarke G, Dao MC, Decaestecker E, Furman E, Haahtela T, Massart S, Plovier H, Sanz Y, Rook G. The impact of human activities and lifestyles on the interlinked microbiota and health of humans and of ecosystems. Sci Total Environ 2018; 627:1018-1038. [PMID: 29426121 DOI: 10.1016/j.scitotenv.2018.01.288] [Citation(s) in RCA: 144] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 01/28/2018] [Accepted: 01/28/2018] [Indexed: 05/03/2023]
Abstract
Plants, animals and humans, are colonized by microorganisms (microbiota) and transiently exposed to countless others. The microbiota affects the development and function of essentially all organ systems, and contributes to adaptation and evolution, while protecting against pathogenic microorganisms and toxins. Genetics and lifestyle factors, including diet, antibiotics and other drugs, and exposure to the natural environment, affect the composition of the microbiota, which influences host health through modulation of interrelated physiological systems. These include immune system development and regulation, metabolic and endocrine pathways, brain function and epigenetic modification of the genome. Importantly, parental microbiotas have transgenerational impacts on the health of progeny. Humans, animals and plants share similar relationships with microbes. Research paradigms from humans and other mammals, amphibians, insects, planktonic crustaceans and plants demonstrate the influence of environmental microbial ecosystems on the microbiota and health of organisms, and indicate links between environmental and internal microbial diversity and good health. Therefore, overlapping compositions, and interconnected roles of microbes in human, animal and plant health should be considered within the broader context of terrestrial and aquatic microbial ecosystems that are challenged by the human lifestyle and by agricultural and industrial activities. Here, we propose research priorities and organizational, educational and administrative measures that will help to identify safe microbe-associated health-promoting modalities and practices. In the spirit of an expanding version of "One health" that includes environmental health and its relation to human cultures and habits (EcoHealth), we urge that the lifestyle-microbiota-human health nexus be taken into account in societal decision making.
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Affiliation(s)
- Lucette Flandroy
- Federal Public Service Health, Food Chain Safety and Environment, Belgium
| | - Theofilos Poutahidis
- Laboratory of Pathology, Faculty of Health Sciences, School of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Gabriele Berg
- Environmental Biotechnology, Graz University of Technology, Petersgasse 12, A-8010 Graz, Austria
| | - Gerard Clarke
- Department of Psychiatry and Neurobehavioural Science, APC Microbiome Institute, University College Cork, Cork, Ireland
| | - Maria-Carlota Dao
- ICAN, Institute of Cardiometabolism and Nutrition, Assistance Publique Hôpitaux de Paris, Pitié-Salpêtrière Hospital, Paris, France; INSERM, UMRS U1166 (Eq 6) Nutriomics, Paris 6, France; UPMC, Sorbonne University, Pierre et Marie Curie-Paris 6, France
| | - Ellen Decaestecker
- Aquatic Biology, Department Biology, Science, Engineering & Technology Group, KU Leuven, Campus Kortrijk. E. Sabbelaan 53, B-8500 Kortrijk, Belgium
| | - Eeva Furman
- Finnish Environment Institute (SYKE), Helsinki, Finland
| | - Tari Haahtela
- Skin and Allergy Hospital, Helsinki University Hospital, University of Helsinki, Finland
| | - Sébastien Massart
- Laboratory of Integrated and Urban Phytopathology, TERRA, Gembloux Agro-Bio Tech, University of Liège, Passage des deportes, 2, 5030 Gembloux, Belgium
| | - Hubert Plovier
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, Université Catholique de Louvain, Brussels, Belgium
| | - Yolanda Sanz
- Microbial Ecology, Nutrition & Health Research Unit, Institute of Agrochemistry and Food Technology, Spanish National Research Council (IATA-CSIC), Valencia, Spain
| | - Graham Rook
- Centre for Clinical Microbiology, Department of Infection, UCL (University College London), London, UK.
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13
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Gavriilidis P, Poutahidis T, Giakoustidis A, Makedou K, Angelopoulou K, Hardas A, Andreani P, Zacharioudaki A, Saridis G, Gargavanis A, Louri E, Antoniadis N, Karampela E, Psychalakis N, Michalopoulos A, Papalois A, Iliadis S, Mudan S, Azoulay D, Giakoustidis D. Targeting hepatocarcinogenesis model in C56BL6 mice with pan-aurora kinase inhibitor Danusertib. J Cancer 2018; 9:914-922. [PMID: 29581770 PMCID: PMC5868156 DOI: 10.7150/jca.22329] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Accepted: 01/29/2018] [Indexed: 12/23/2022] Open
Abstract
Background: To elucidate the expression of Aurora kinases (AURK) and the anticancer effects of pan-aurora kinase inhibitor Danusertib in hepatocarcinogenesis model in C56Bl6 mice. Methods: Thirty mice C56Bl6 were randomly divided into Group A or control, Group B animals who underwent experimental hepatocarcinogenesis with diethylnitrosamine (DEN), and Group C animals with DEN-induced hepatocarcinogenenesis that treated with pan-aurora kinase inhibitor Danusertib. Primary antibodies for immunochistochemistry (IHC) included rabbit antibodies against Ki-67, DKK1, INCENP, cleaved caspase-3, NF-κB p65, c-Jun, β-catenin. Hepatocyte growth factor receptor (C-MET/HGFR) and Bcl-2 antagonist of cell death (BAD) serum levels were determined using a quantitative sandwich enzyme immunoassay technique. Results: Inhibition of AURK reduced the number of DEN-induced liver tumours. Apoptosis and proliferation was very low in both DEN-induced and anti- AURK groups respectively. The hepatocellular adenoma cells of DEN-treated mice uniformly had ample nuclear INCENP whereas in anti- AURK markedly decreased. Expression of β-catenin, NF-kB and c-Jun did not differ in liver tumors of both AURK -depleted and non-depleted mice. Conclusions: Depletion of AURK reduced the number of DEN-induced hepatic tumours. However, their size did not differ significantly between the groups.
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Affiliation(s)
- Paschalis Gavriilidis
- Department of Hepato-Pancreato-Biliary and Liver Transplant surgery, Queen Elizabeth University Hospitals Birmingham NHS Foundation Trust, B15 1NU, UK.,Division of Transplant Surgery, Department of Surgery, School of Medicine, Faculty of Health Sciences, Aristotle University and Hippokration General Hospital, Thessaloniki, Greece
| | - Theofilos Poutahidis
- Laboratory of Pathology, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki
| | | | - Kali Makedou
- Laboratory of Biochemistry, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki
| | - Katerina Angelopoulou
- Laboratory of Biochemistry and Toxicology, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki
| | - Alexander Hardas
- Laboratory of Pathology, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki
| | - Paola Andreani
- Service de Chirurgie Digestive et Hépatobiliaire, Hôpital Henri Mondor, Assistance Publique-Hôpitaux de Paris-Université Paris-Est, Créteil, France
| | | | - George Saridis
- Laboratory of Pathology, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki
| | - Athanasios Gargavanis
- Division of Transplant Surgery, Department of Surgery, School of Medicine, Faculty of Health Sciences, Aristotle University and Hippokration General Hospital, Thessaloniki, Greece
| | - Eleni Louri
- Academic Department of Surgery, The Royal Marsden Hospital, London, UK
| | - Nikolaos Antoniadis
- Division of Transplant Surgery, Department of Surgery, School of Medicine, Faculty of Health Sciences, Aristotle University and Hippokration General Hospital, Thessaloniki, Greece
| | | | | | - Antonios Michalopoulos
- Propaedeutic Division of Surgery, Department of Surgery School of Medicine, Faculty of Health Sciences, Aristotle University and AHEPA University Hospital, Thessaloniki, Greece
| | | | - Stavros Iliadis
- Laboratory of Biochemistry, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki
| | - Satvinder Mudan
- Academic Department of Surgery, The Royal Marsden Hospital, London, UK
| | - Daniel Azoulay
- Service de Chirurgie Digestive et Hépatobiliaire, Hôpital Henri Mondor, Assistance Publique-Hôpitaux de Paris-Université Paris-Est, Créteil, France
| | - Dimitrios Giakoustidis
- Division of Transplant Surgery, Department of Surgery, School of Medicine, Faculty of Health Sciences, Aristotle University and Hippokration General Hospital, Thessaloniki, Greece
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14
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Papadopoulos GA, Poutahidis T, Chalvatzi S, Di Benedetto M, Hardas A, Tsiouris V, Georgopoulou I, Arsenos G, Fortomaris PD. Effects of lysolecithin supplementation in low-energy diets on growth performance, nutrient digestibility, viscosity and intestinal morphology of broilers. Br Poult Sci 2018; 59:232-239. [DOI: 10.1080/00071668.2018.1423676] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- G. A. Papadopoulos
- Laboratory of Animal Husbandry, Faculty of Veterinary Medicine, School of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - T. Poutahidis
- Laboratory of Pathology, Faculty of Veterinary Medicine, School of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - S. Chalvatzi
- Laboratory of Animal Husbandry, Faculty of Veterinary Medicine, School of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - M. Di Benedetto
- Department of Monogastric Animal Technical Services, Kemin Europa NV, Herentals, Belgium
| | - A. Hardas
- Laboratory of Pathology, Faculty of Veterinary Medicine, School of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - V. Tsiouris
- Unit of Avian Medicine, Faculty of Veterinary Medicine, School of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - I. Georgopoulou
- Unit of Avian Medicine, Faculty of Veterinary Medicine, School of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - G. Arsenos
- Laboratory of Animal Husbandry, Faculty of Veterinary Medicine, School of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - P. D. Fortomaris
- Laboratory of Animal Husbandry, Faculty of Veterinary Medicine, School of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
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15
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Afaloniati H, Karagiannis GS, Hardas A, Poutahidis T, Angelopoulou K. Inflammation-driven colon neoplasmatogenesis in uPA-deficient mice is associated with an increased expression of Runx transcriptional regulators. Exp Cell Res 2017; 361:257-264. [DOI: 10.1016/j.yexcr.2017.10.025] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Revised: 10/23/2017] [Accepted: 10/24/2017] [Indexed: 02/06/2023]
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16
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Sklavos A, Poutahidis T, Giakoustidis A, Makedou K, Angelopoulou K, Hardas A, Andreani P, Zacharioudaki A, Saridis G, Goulopoulos T, Tsarea K, Karamperi M, Papadopoulos V, Papanikolaou V, Papalois A, Iliadis S, Mudan S, Azoulay D, Giakoustidis D. Effects of Wnt-1 blockade in DEN-induced hepatocellular adenomas of mice. Oncol Lett 2017; 15:1211-1219. [PMID: 29399175 DOI: 10.3892/ol.2017.7427] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Accepted: 09/01/2017] [Indexed: 12/19/2022] Open
Abstract
Recent evidence has suggested that downregulation of the Wnt/β-catenin signaling pathway may contribute to the development and growth of HCC. Consequently, elements of this pathway have begun to emerge as potential targets for improving outcomes of anti-HCC. Thus, the present study sought to examine the effects of Wnt-1 blockade using the classical diethylnitrosamine (DEN)-induced chemical carcinogenesis mouse model of HCC. The depletion of Wnt-1 using neutralizing antisera was done for ten consecutive days at the age of 9 months and mice were examined for the following 20 days. At that time, DEN-treated mice had multiple variably-sized hepatic cell adenomas. Anti-Wnt-1 was particularly potent in suppressing the expression of critical elements of the Wnt/β-catenin signaling pathway, such as β-catenin and Frizzled-1 receptor, however, not Dickkopf-related protein 1. This effect co-existed with the suppression of Cyclin D1, FOXM1, NF-κΒ and c-Jun commensurate with proliferation and apoptosis blockade in hepatocellular adenomas, and reduced Bcl-2 and c-Met in the serum of mice. Nonetheless, tumor size and multiplicity were found to be unaffected, suggesting that apoptosis may be equally important to proliferation in the context of counteracting DEN induced hepatocellular adenomas of mice.
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Affiliation(s)
- Argyrios Sklavos
- Division of Transplant Surgery, Department of Surgery, School of Medicine, Faculty of Health Sciences, Aristotle University and Hippokration General Hospital, Thessaloniki 54642, Greece
| | - Theofilos Poutahidis
- Laboratory of Pathology, School of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | | | - Kali Makedou
- Laboratory of Biochemistry, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Katerina Angelopoulou
- Laboratory of Biochemistry and Toxicology, School of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Alexander Hardas
- Laboratory of Pathology, School of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Paola Andreani
- Service de Chirurgie Digestive et Hépatobiliaire, Hôpital Henri Mondor, Assistance Publique-Hôpitaux de Paris-Université Paris-Est, Créteil 94000, France
| | | | - George Saridis
- Laboratory of Pathology, School of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Thomas Goulopoulos
- Division of Transplant Surgery, Department of Surgery, School of Medicine, Faculty of Health Sciences, Aristotle University and Hippokration General Hospital, Thessaloniki 54642, Greece
| | - Kalliopi Tsarea
- Experimental and Research Center ELPEN Pharmaceuticals, Athens 19009, Greece
| | - Maria Karamperi
- Experimental and Research Center ELPEN Pharmaceuticals, Athens 19009, Greece
| | - Vassilios Papadopoulos
- Propedeutic Division of Surgery, Department of Surgery School of Medicine, Faculty of Health Sciences, Aristotle University and AHEPA University Hospital, Thessaloniki 54124, Greece
| | - Vassilios Papanikolaou
- Division of Transplant Surgery, Department of Surgery, School of Medicine, Faculty of Health Sciences, Aristotle University and Hippokration General Hospital, Thessaloniki 54642, Greece
| | - Apostolos Papalois
- Experimental and Research Center ELPEN Pharmaceuticals, Athens 19009, Greece
| | - Stavros Iliadis
- Laboratory of Biochemistry, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Satvinder Mudan
- Academic Department of Surgery, The Royal Marsden Hospital, London SW3 6JJ, UK
| | - Daniel Azoulay
- Service de Chirurgie Digestive et Hépatobiliaire, Hôpital Henri Mondor, Assistance Publique-Hôpitaux de Paris-Université Paris-Est, Créteil 94000, France
| | - Dimitrios Giakoustidis
- Division of Transplant Surgery, Department of Surgery, School of Medicine, Faculty of Health Sciences, Aristotle University and Hippokration General Hospital, Thessaloniki 54642, Greece
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17
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Papadopoulos GA, Poutahidis T, Tallarico N, Hardas A, Teliousis K, Arsenos G, Fortomaris PD. Dietary supplementation of encapsulated organic acids enhances performance and modulates immune regulation and morphology of jejunal mucosa in piglets. Res Vet Sci 2017; 115:174-182. [PMID: 28458106 DOI: 10.1016/j.rvsc.2017.04.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Revised: 03/23/2017] [Accepted: 04/21/2017] [Indexed: 01/22/2023]
Abstract
The aim of the study was to test two encapsulated regimens containing organic acids and/or zinc oxide (ZnO) on weaned piglet performance and jejunal mucosa morphology and immunity. For that, weaned piglets were allocated to treatments including control, supplemented with encapsulated organic acids (ACID group), and supplemented with organic acids and ZnO, both encapsulated (ACIDplus group). Antibiotics were used at similar concentrations in all groups during the first two weeks, but withdrawn from the ACIDplus group during the last three weeks of the experiment. ZnO was given with feed in the Control and ACID groups only during the first two weeks. The experimental period lasted 5 weeks. Piglets from the ACID group exhibited higher average daily gain compared to other groups during the last 3 weeks of the experiment (P<0.05). The ACIDplus group performed similarly with controls. The mucosal height of jejunum was higher in both ACID (P<0.01) and ACIDplus groups compared to controls (P<0.05). Immunohistochemical analysis of jejunal mucosa, showed higher numbers of neutrophils in ACID and ACIDplus groups compared to controls (P<0.01 and P<0.001, respectively). Treatments had the opposite effect on mucosal regulatory T-cells (Foxp3-positive cells) in jejunum, being higher (P<0.001) in control group compared to ACID and ACIDplus groups. The number of CD3-positive cells was higher (P<0.05) in the ACIDplus and control groups compared to the ACID group. In conclusion, the encapsulated products used had beneficial effects on growth performance coexisting with improvements on jejunal histomorphology and modulation of mucosal immunity.
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Affiliation(s)
- Georgios A Papadopoulos
- Laboratory of Animal Husbandry, Faculty of Veterinary Medicine, School of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Theofilos Poutahidis
- Laboratory of Pathology, Faculty of Veterinary Medicine, School of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | | | - Alexandros Hardas
- Laboratory of Pathology, Faculty of Veterinary Medicine, School of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Konstantinos Teliousis
- Laboratory of Pathology, Faculty of Veterinary Medicine, School of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Georgios Arsenos
- Laboratory of Animal Husbandry, Faculty of Veterinary Medicine, School of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Paschalis D Fortomaris
- Laboratory of Animal Husbandry, Faculty of Veterinary Medicine, School of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece.
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Abstract
Emerging evidence shows that microbe interactions with the host immune system impact diverse aspects of cancer development and treatment. As a result, exciting new opportunities exist for engineering diets and microbe cocktails to lower cancer risks with fewer adverse clinical effects than traditional strategies. Microbe-based therapies may ultimately be used to reinforce host immune balance and extinguish cancer for generations to come.
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Affiliation(s)
- Susan E Erdman
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, USA.
| | - Theofilos Poutahidis
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, USA; Department of Pathology, College of Veterinary Medicine, Aristotle University, Thessaloniki, Greece
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19
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20
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Abstract
It has been recently shown that gut microbes modulate whole host immune and hormonal factors impacting the fate of distant preneoplastic lesions toward malignancy or regression. This raises the possibility that the tumor microenvironment interacts with broader systemic microbial-immune networks. These accumulated findings suggest novel therapeutic opportunities for holobiont engineering in emerging tumor microenvironments.
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Affiliation(s)
- Theofilos Poutahidis
- Division of Comparative Medicine, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA; Laboratory of Pathology, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, Greece 54124
| | - Susan E Erdman
- Division of Comparative Medicine, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA.
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21
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Abstract
It is now understood that gut bacteria exert effects beyond the local boundaries of the gastrointestinal tract to include distant tissues and overall health. Prototype probiotic bacterium Lactobacillus reuteri has been found to upregulate hormone oxytocin and systemic immune responses to achieve a wide array of health benefits involving wound healing, mental health, metabolism, and myoskeletal maintenance. Together these display that the gut microbiome and host animal interact via immune-endocrine-brain signaling networks. Such findings provide novel therapeutic strategies to stimulate powerful homeostatic pathways and genetic programs, stemming from the coevolution of mammals and their microbiome.
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Affiliation(s)
- S E Erdman
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, United States; Aristotle University of Thessaloniki, Thessaloniki, Greece.
| | - T Poutahidis
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, United States; Aristotle University of Thessaloniki, Thessaloniki, Greece
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22
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Fragkou FC, Adamama-Moraitou KK, Poutahidis T, Prassinos NN, Kritsepi-Konstantinou M, Xenoulis PG, Steiner JM, Lidbury JA, Suchodolski JS, Rallis TS. Prevalence and Clinicopathological Features of Triaditis in a Prospective Case Series of Symptomatic and Asymptomatic Cats. J Vet Intern Med 2016; 30:1031-45. [PMID: 27296565 PMCID: PMC5089651 DOI: 10.1111/jvim.14356] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Revised: 04/26/2016] [Accepted: 05/16/2016] [Indexed: 12/25/2022] Open
Abstract
Background The term triaditis designates the concurrent presence of idiopathic inflammatory bowel disease (IBD), cholangitis, and pancreatitis in cats. Hypothesis/Objectives The histopathology of concurrent, but often subclinical, inflammatory processes in the small intestine, liver, and pancreas of cats is poorly described. We aimed to investigate the frequency of enteritis, cholangitis, pancreatitis, or some combination of these in symptomatic and asymptomatic cats, compare clinicopathological features, and correlate histopathological with laboratory findings. Animals Domestic cats (27 symptomatic, 20 asymptomatic, and 8 normal). Methods Prospective study. Physical examination, laboratory variables (CBC, serum biochemistry profile, serum thyroxine concentration, serum feline trypsin‐like immunoreactivity [fTLI], feline lipase immunoreactivity [fPLI, as measured by Spec fPL®], urinalysis, and fecal analysis), imaging, and histopathological examinations were conducted. Feline liver, pancreas, and small intestine were biopsied during laparotomy. Results Inflammatory lesions were detected in 47 cats (27 symptomatic, 20 asymptomatic). In total, 20 cats had histopathologic lesions of IBD (13/47, 27.7%), cholangitis (6/47, 12.8%), or pancreatitis (1/47, 2.1%) alone, or inflammation involving >1 organ (27/47, 57.4%). More specifically, 16/47 cats (34.0%) had concurrent lesions of IBD and cholangitis, 3/47 (6.4%) of IBD and pancreatitis, and 8/47 cats (17%) of triaditis. Triaditis was identified only in symptomatic cats (8/27, 29.6%). A mild, positive correlation was detected between the severity (score) of IBD lesions and the number of comorbidities (rho = +0.367, P = .022). Conclusions and Clinical Importance Histopathological evidence of IBD or IBD with comorbidities was detected in both symptomatic and asymptomatic cats. The possibility of triaditis should be considered in symptomatic cats with severe IBD.
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Affiliation(s)
- F C Fragkou
- Medicine Unit, Companion Animal Clinic, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - K K Adamama-Moraitou
- Medicine Unit, Companion Animal Clinic, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - T Poutahidis
- Laboratory of Pathology, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - N N Prassinos
- Surgery and Obstetrics Unit, Companion Animal Clinic, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - M Kritsepi-Konstantinou
- Diagnostic Laboratory, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - P G Xenoulis
- Gastrointestinal Laboratory, Texas A&M University, College Station, TX, USA
| | - J M Steiner
- Gastrointestinal Laboratory, Texas A&M University, College Station, TX, USA
| | - J A Lidbury
- Gastrointestinal Laboratory, Texas A&M University, College Station, TX, USA
| | - J S Suchodolski
- Gastrointestinal Laboratory, Texas A&M University, College Station, TX, USA
| | - T S Rallis
- Medicine Unit, Companion Animal Clinic, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
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23
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Karatzas DN, Xanthopoulos K, Kotantaki P, Pseftogas A, Teliousis K, Hatzivassiliou EG, Kontoyiannis DL, Poutahidis T, Mosialos G. Inactivation of CYLD in intestinal epithelial cells exacerbates colitis-associated colorectal carcinogenesis - a short report. Cell Oncol (Dordr) 2016; 39:287-93. [DOI: 10.1007/s13402-016-0279-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/13/2016] [Indexed: 12/13/2022] Open
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24
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Varian BJ, Goureshetti S, Poutahidis T, Lakritz JR, Levkovich T, Kwok C, Teliousis K, Ibrahim YM, Mirabal S, Erdman SE. Beneficial bacteria inhibit cachexia. Oncotarget 2016; 7:11803-16. [PMID: 26933816 PMCID: PMC4914249 DOI: 10.18632/oncotarget.7730] [Citation(s) in RCA: 89] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2015] [Accepted: 02/05/2016] [Indexed: 12/18/2022] Open
Abstract
Muscle wasting, known as cachexia, is a debilitating condition associated with chronic inflammation such as during cancer. Beneficial microbes have been shown to optimize systemic inflammatory tone during good health; however, interactions between microbes and host immunity in the context of cachexia are incompletely understood. Here we use mouse models to test roles for bacteria in muscle wasting syndromes. We find that feeding of a human commensal microbe, Lactobacillus reuteri, to mice is sufficient to lower systemic indices of inflammation and inhibit cachexia. Further, the microbial muscle-building phenomenon extends to normal aging as wild type animals exhibited increased growth hormone levels and up-regulation of transcription factor Forkhead Box N1 [FoxN1] associated with thymus gland retention and longevity. Interestingly, mice with a defective FoxN1 gene (athymic nude) fail to inhibit sarcopenia after L. reuteri therapy, indicating a FoxN1-mediated mechanism. In conclusion, symbiotic bacteria may serve to stimulate FoxN1 and thymic functions that regulate inflammation, offering possible alternatives for cachexia prevention and novel insights into roles for microbiota in mammalian ontogeny and phylogeny.
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Affiliation(s)
- Bernard J. Varian
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Sravya Goureshetti
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Theofilos Poutahidis
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, USA
- Laboratory of Pathology, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Jessica R. Lakritz
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Tatiana Levkovich
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Caitlin Kwok
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Konstantinos Teliousis
- Laboratory of Pathology, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Yassin M. Ibrahim
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Sheyla Mirabal
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Susan E. Erdman
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, USA
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25
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Ouzounidis N, Giakoustidis A, Poutahidis T, Angelopoulou K, Iliadis S, Chatzigiagkos A, Zacharioudaki A, Angelopoulos S, Papalois A, Papanikolaou V, Giakoustidis D. Interleukin 18 binding protein ameliorates ischemia/reperfusion-induced hepatic injury in mice. Liver Transpl 2016; 22:237-46. [PMID: 26479304 DOI: 10.1002/lt.24359] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Revised: 08/24/2015] [Accepted: 10/05/2015] [Indexed: 12/13/2022]
Abstract
Inflammation-associated oxidative stress contributes to hepatic ischemia/reperfusion injury (IRI). Detrimental inflammatory event cascades largely depend on activated Kupffer cells (KCs) and neutrophils, as well as proinflammatory cytokines, including tumor necrosis factor α (TNF-α) and interleukin (IL) 18. The aim of our study was to evaluate the effects of IL 18 binding protein (IL 18Bp) in hepatic IRI of mice. Thirty C57BL/6 mice were allocated into 3 groups: sham operation, ischemia/reperfusion (I/R), and I/R with intravenous administration of IL 18Bp. Hepatic ischemia was induced for 30 minutes by Pringle's maneuver. After 120 minutes of reperfusion, mice were euthanized, and the liver and blood samples were collected for histological, immunohistochemical, molecular, and biochemical analyses. I/R injury induced the typical liver pathology and upregulated IL-18 expression in the liver of mice. Binding of IL 18 with IL 18Bp significantly reduced the histopathological indices of I/R liver injury and KC apoptosis. The I/R-induced increase of TNF-α, malondialdehyde, aspartate aminotransferase, and alanine aminotransferase levels was prevented in statistically significant levels because of the pretreatment with IL 18Bp. Likewise, blocking of IL 18 ablated the I/R-associated elevation of nuclear factor kappa B, c-Jun, myeloperoxidase, and IL 32 and the up-regulation of neutrophils and T-helper lymphocytes. Administration of IL 18Bp protects the mice liver from I/R injury by intervening in critical inflammation-associated pathways and KC apoptosis.
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Affiliation(s)
- Nikolaos Ouzounidis
- Division of Transplant Surgery, Department of Surgery, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Alexandros Giakoustidis
- Division of Transplant Surgery, Department of Surgery, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Theofilos Poutahidis
- Laboratory of Pathology, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Katerina Angelopoulou
- Laboratory of Biochemistry and Toxicology, School of Veterinary Medicine, Faculty of Health Sciences, Thessaloniki, Greece
| | - Stavros Iliadis
- Laboratory of Biochemistry, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | | | | | - Stamatis Angelopoulos
- 4th Division of Surgery, Department of Surgery, School of Health Sciences, Aristotle University of Thessaloniki and Hippokration General Hospital, Thessaloniki, Greece
| | | | - Vasilios Papanikolaou
- Division of Transplant Surgery, Department of Surgery, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Dimitrios Giakoustidis
- Division of Transplant Surgery, Department of Surgery, Aristotle University of Thessaloniki, Thessaloniki, Greece
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26
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Lakritz JR, Poutahidis T, Mirabal S, Varian BJ, Levkovich T, Ibrahim YM, Ward JM, Teng EC, Fisher B, Parry N, Lesage S, Alberg N, Gourishetti S, Fox JG, Ge Z, Erdman SE. Gut bacteria require neutrophils to promote mammary tumorigenesis. Oncotarget 2016; 6:9387-96. [PMID: 25831236 PMCID: PMC4496224 DOI: 10.18632/oncotarget.3328] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Accepted: 02/09/2015] [Indexed: 12/26/2022] Open
Abstract
Recent studies suggest that gastrointestinal tract microbiota modulate cancer development in distant non-intestinal tissues. Here we tested mechanistic hypotheses using a targeted pathogenic gut microbial infection animal model with a predilection to breast cancer. FVB-Tg(C3-1-TAg)cJeg/JegJ female mice were infected by gastric gavage with Helicobacter hepaticus at three-months-of-age putting them at increased risk for mammary tumor development. Tumorigenesis was multifocal and characterized by extensive infiltrates of myeloperoxidase-positive neutrophils otherwise implicated in cancer progression in humans and animal models. To test whether neutrophils were important in etiopathogenesis in this bacteria-triggered model system, we next systemically depleted mice of neutrophils using thrice weekly intraperitoneal injections with anti-Ly-6G antibody. We found that antibody depletion entirely inhibited tumor development in this H. hepaticus-infected model. These data demonstrate that host neutrophil-associated immune responses to intestinal tract microbes significantly impact cancer progression in distal tissues such as mammary glands, and identify gut microbes as novel targets for extra-intestinal cancer therapy.
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Affiliation(s)
- Jessica R Lakritz
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Theofilos Poutahidis
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.,Laboratory of Pathology, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, Greece 54124
| | - Sheyla Mirabal
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Bernard J Varian
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Tatiana Levkovich
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Yassin M Ibrahim
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | | | - Ellen C Teng
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Brett Fisher
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Nicola Parry
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Stephanie Lesage
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Natalie Alberg
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Sravya Gourishetti
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - James G Fox
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Zhongming Ge
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Susan E Erdman
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
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27
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Triantafyllidis I, Poutahidis T, Taitzoglou I, Kesisoglou I, Lazaridis C, Botsios D. Treatment with Mesna and n-3 polyunsaturated fatty acids ameliorates experimental ulcerative colitis in rats. Int J Exp Pathol 2016; 96:433-43. [PMID: 26852691 DOI: 10.1111/iep.12163] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2015] [Accepted: 11/29/2015] [Indexed: 12/17/2022] Open
Abstract
Oxidative damage is a central feature of ulcerative colitis. Here, we tested whether the antioxidant Mesna, when administered alone or in combination with n-3 polyunsaturated fatty acids (n-3 PUFAs), affects the outcome of dextran sodium sulphate (DSS)-induced ulcerative colitis in rats. After the induction of colitis, DSS-treated rats were further treated orally (p.o), intraperitoneally (i.p) or intrarectally (i.r) for either 7 or 14 days with Mesna, n-3 PUFAs or both. Rats were euthanized at the end of each treatment period. Clinical disease activity index was recorded throughout the experiment. At necropsy colorectal gross lesions were scored. Colitis was scored histologically, and the expression of myeloperoxidase (MPO), caspase-3, inducible nitric oxide synthase (iNOS) and nuclear factor κB (NF-κΒ) in colonic tissue was assessed by immunohistochemistry. Mesna alone was sufficient to significantly reduce colorectal tissue damage when administered orally or intraperitoneally. Orally coadministered n-3 PUFAs enhanced this effect, resulting in the significant suppression of DSS colitis after 7 days, and a remarkable recovery of colorectal mucosa was evident after 14 days of treatment. The amelioration of colon pathology co-existed with a significant decrease in MPO expression, overexpression of iNOS and reduction of nuclear NF-κB p65 in inflammatory cells, and the suppression of apoptosis in colonic epithelial cells. The simultaneous administration of Mesna and n-3 PUFAs is particularly effective in ameliorating DSS colitis in rats, by reducing oxidative stress, inflammation and apoptosis, probably through a mechanism that involves the inhibition of NF-κB and overexpression of iNOS.
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Affiliation(s)
| | - Theofilos Poutahidis
- Laboratory of Pathology, Faculty of Health Sciences, School of Veterinary Medicine, Aristotle University, Thessaloniki, Greece
| | - Ioannis Taitzoglou
- Laboratory of Physiology, Faculty of Health Sciences, School of Veterinary Medicine, Aristotle University, Thessaloniki, Greece
| | - Isaak Kesisoglou
- 3rd Department of Surgery, AHEPA University Hospital, Faculty of Health Sciences, School of Medicine, Aristotle University, Thessaloniki, Greece
| | - Charalampos Lazaridis
- 4th Department of Surgery, Papanikolaou University Hospital, Faculty of Health Sciences, School of Medicine, Aristotle University, Thessaloniki, Greece
| | - Dimitrios Botsios
- 4th Department of Surgery, Papanikolaou University Hospital, Faculty of Health Sciences, School of Medicine, Aristotle University, Thessaloniki, Greece
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28
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Karagiannis GS, Afaloniati H, Karamanavi E, Poutahidis T, Angelopoulou K. BMP pathway suppression is an early event in inflammation-driven colon neoplasmatogenesis of uPA-deficient mice. Tumour Biol 2015; 37:2243-55. [PMID: 26358253 DOI: 10.1007/s13277-015-3988-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Accepted: 08/25/2015] [Indexed: 12/21/2022] Open
Abstract
The suppression of the bone morphogenetic protein (BMP) signaling pathway has been recently shown to promote adenoma-to-carcinoma transition in sporadic colon cancer. However, its role in the evolution of early preneoplastic changes to neoplasia remains elusive. In the present study, we aimed to investigate the gene expression levels of multiple extracellular BMP family constituents, including BMP ligands/receptors and inhibitors, during the early stages of inflammation-associated colon carcinogenesis. For that, we used the recently developed urokinase-type plasminogen activator (uPA)-deficient mouse model of colonic polypoidogenesis, in which adenomatous polyps arise several months after the induction of dextran sodium sulfate (DSS) colitis. In DSS-treated wild-type mice, the preneoplastic lesions which did not eventually evolve to adenomas resided in a colitic microenvironment characterized by a balanced upregulation of both BMP ligands, i.e., Bmp4/7 and BMP inhibitors, such as chordin, noggin, and gremlin-1. In the uPA-deficient tumor-promoting inflammatory microenvironment, however, there was a clear evidence for BMP pathway suppression. By contrast to DSS-treated wild-type controls, the inflammation-associated Bmp4 upregulation was abolished, and the BMP signaling suppression was further enhanced by a particularly high increase of gremlin-1 expression. These findings propose that BMP pathway suppression in colon cancer could be associated with very early stages of the preneoplasia-to-neoplasia sequence of events.
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Affiliation(s)
- George S Karagiannis
- Department of Anatomy and Structural Biology, Albert Einstein College of Medicine, Yeshiva University, Bronx, NY, USA
| | - Hara Afaloniati
- Laboratory of Biochemistry and Toxicology, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Elisavet Karamanavi
- Laboratory of Pathology, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece.,Department of Cardiovasular Sciences, Cardiovascular Research Centre, Glenfield General Hospital, University of Leicester, Leicester, UK
| | - Theofilos Poutahidis
- Laboratory of Pathology, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Katerina Angelopoulou
- Laboratory of Biochemistry and Toxicology, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece.
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29
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Abstract
Microbiota on the mucosal surfaces of the gastrointestinal (GI) tract greatly outnumbers the cells in the human body. Effects of antibiotics indicate that GI tract bacteria may be determining the fate of distal cancers. Recent data implicate dysregulated host responses to enteric bacteria leading to cancers in extra-intestinal sites. Together these findings point to novel anti-cancer strategies aimed at promoting GI tract homeostasis.
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Affiliation(s)
- Susan E Erdman
- Division of Comparative Medicine, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, United States.
| | - Theofilos Poutahidis
- Division of Comparative Medicine, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, United States; Laboratory of Pathology, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, 54124, Greece
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30
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Poutahidis T, Angelopoulou K, Erdman SE. Old enemies meet new friends for colon cancer prevention. Oncoimmunology 2015; 4:e1027474. [PMID: 26451294 DOI: 10.1080/2162402x.2015.1027474] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Accepted: 03/03/2015] [Indexed: 10/23/2022] Open
Abstract
Our studies in mice have suggested that the immunological microenvironment of preneoplastic lesions could determine their fate toward neoplasia or regression. A role for gastrointestinal tract bacteria antigens in modulating cancer-related immune responses in the tumor micro- and macro-environment is emerging, thus opening new possibilities for colon cancer prevention.
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Affiliation(s)
- Theofilos Poutahidis
- Laboratory of Pathology; Faculty of Health Sciences; School of Veterinary Medicine; Aristotle University of Thessaloniki ; Thessaloniki, Greece
| | - Katerina Angelopoulou
- Laboratory of Biochemistry and Toxicology; Faculty of Health Sciences; School of Veterinary Medicine; Aristotle University of Thessaloniki ; Thessaloniki, Greece
| | - Suzan E Erdman
- Division of Comparative Medicine; Massachusetts Institute of Technology ; Cambridge, MA USA
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31
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Komnenou AT, Thomas ALN, Kyriazis AP, Poutahidis T, Papazoglou LG. Ocular manifestations of canine transmissible venereal tumour: a retrospective study of 25 cases in Greece. Vet Rec 2015; 176:523. [DOI: 10.1136/vr.102968] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/23/2015] [Indexed: 11/03/2022]
Affiliation(s)
- A. Th Komnenou
- Ophthalmology Unit; Clinic of Companion Animal; Faculty of Veterinary Medicine; Aristotle University of Thessaloniki (AUTH); 11 St. Voutyra Street Thessaloniki GR-54627 Greece
| | - A. L. N. Thomas
- Ophthalmology Unit; Clinic of Companion Animal; Faculty of Veterinary Medicine; Aristotle University of Thessaloniki (AUTH); 11 St. Voutyra Street Thessaloniki GR-54627 Greece
| | | | - T. Poutahidis
- Laboratory of Pathology; Faculty of Veterinary Medicine; Aristotle University of Thessaloniki (AUTH); Thessaloniki Greece
| | - L. G. Papazoglou
- Surgery and Obstetrics Unit; Clinic of Companion Animal; Faculty of Veterinary Medicine; Aristotle University of Thessaloniki (AUTH); Thessaloniki Greece
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32
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Poutahidis T, Varian BJ, Levkovich T, Lakritz JR, Mirabal S, Kwok C, Ibrahim YM, Kearney SM, Chatzigiagkos A, Alm EJ, Erdman SE. Dietary microbes modulate transgenerational cancer risk. Cancer Res 2015; 75:1197-204. [PMID: 25716681 DOI: 10.1158/0008-5472.can-14-2732] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2014] [Accepted: 01/30/2015] [Indexed: 02/07/2023]
Abstract
Environmental factors are suspected in the increase of obesity and cancer in industrialized countries but are poorly understood. Here, we used animal models to test how future generations may be affected by Westernized diets. We discover long-term consequences of grandmothers' in utero dietary exposures, leading to high rates of obesity and frequent cancers of lung and liver in two subsequent generations of mice. Transgenerational effects were transplantable using diet-associated bacteria communities alone. Consequently, feeding of beneficial microbes was sufficient to lower transgenerational risk for cancer and obesity regardless of diet history. Targeting microbes may be a highly effective population-based approach to lower risk for cancer.
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Affiliation(s)
- Theofilos Poutahidis
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts. Laboratory of Pathology, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, Greece
| | - Bernard J Varian
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts
| | - Tatiana Levkovich
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts
| | - Jessica R Lakritz
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts
| | - Sheyla Mirabal
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts
| | - Caitlin Kwok
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts
| | - Yassin M Ibrahim
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts
| | - Sean M Kearney
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts. Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts
| | - Antonis Chatzigiagkos
- Laboratory of Pathology, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, Greece
| | - Eric J Alm
- Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts. Broad Institute of MIT and Harvard, Cambridge, Massachusetts
| | - Susan E Erdman
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts.
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33
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Doulberis M, Angelopoulou K, Kaldrymidou E, Tsingotjidou A, Abas Z, Erdman SE, Poutahidis T. Cholera-toxin suppresses carcinogenesis in a mouse model of inflammation-driven sporadic colon cancer. Carcinogenesis 2014; 36:280-90. [PMID: 25550315 DOI: 10.1093/carcin/bgu325] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Human studies and clues from animal models have provided important links between gastrointestinal (GI) tract bacteria and colon cancer. Gut microbiota antigenic stimuli play an important role in shaping the intestinal immune responses. Therefore, especially in the case of inflammation-associated colon cancer, gut bacteria antigens may affect tumorigenesis. The present study aimed to investigate the effects of the oral administration of a bacterial product with known immunomodulatory properties on inflammation-driven colorectal neoplasmatogenesis. For that, we used cholera-toxin and a well-established mouse model of colon cancer in which neoplasia is initiated by a single dose of the genotoxic agent azoxymethane (AOM) and subsequently promoted by inflammation caused by the colitogenic substance dextran sodium sulfate (DSS). We found that a single, low, non-pathogenic dose of CT, given orally at the beginning of each DSS treatment cycle downregulated neutrophils and upregulated regulatory T-cells and IL-10 in the colonic mucosa. The CT-induced disruption of the tumor-promoting character of DSS-induced inflammation led to the reduction of the AOM-initiated colonic polypoidogenesis. This result adds value to the emerging notion that certain GI tract bacteria or their products affect the immune system and render the microenvironment of preneoplastic lesions less favorable for promoting their evolution to cancer.
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Affiliation(s)
- Michael Doulberis
- Laboratory of Pathology, Laboratory of Biochemistry and Toxicology and Laboratory of Anatomy, Histology and Embryology, Faculty of Health Sciences, School of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece, Department of Agricultural Development, Democritus University of Thrace, Orestiada 68200, Greece and Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | | | - Eleni Kaldrymidou
- Laboratory of Pathology, Laboratory of Biochemistry and Toxicology and Laboratory of Anatomy, Histology and Embryology, Faculty of Health Sciences, School of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece, Department of Agricultural Development, Democritus University of Thrace, Orestiada 68200, Greece and Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Anastasia Tsingotjidou
- Laboratory of Anatomy, Histology and Embryology, Faculty of Health Sciences, School of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Zaphiris Abas
- Department of Agricultural Development, Democritus University of Thrace, Orestiada 68200, Greece and
| | - Suzan E Erdman
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Theofilos Poutahidis
- Laboratory of Pathology, Laboratory of Biochemistry and Toxicology and Laboratory of Anatomy, Histology and Embryology, Faculty of Health Sciences, School of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece, Department of Agricultural Development, Democritus University of Thrace, Orestiada 68200, Greece and Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
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Abstract
Radiant skin and hair are universal indicators of good health. It was recently shown that feeding of probiotic bacteria to aged mice rapidly induced youthful vitality characterised by thick lustrous skin and hair, and enhanced reproductive fitness, not seen in untreated controls. Probiotic-treated animals displayed integrated immune and hypothalamic-pituitary outputs that were isolated mechanistically to microbe-induced anti-inflammatory interleukin-10 and neuropeptide hormone oxytocin. In this way, probiotic microbes interface with mammalian physiological underpinnings to impart superb physical and reproductive fitness displayed as radiant and resilient skin and mucosae, unveiling novel strategies for integumentary health.
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Affiliation(s)
- S E Erdman
- Division of Comparative Medicine, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
| | - T Poutahidis
- Division of Comparative Medicine, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA Faculty of Veterinary Medicine, Laboratory of Pathology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
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Abstract
Risk of developing inflammation-associated cancers has increased in industrialized countries during the past 30 years. One possible explanation is societal hygiene practices with use of antibiotics and Caesarian births that provide too few early life exposures of beneficial microbes. Building upon a 'hygiene hypothesis' model whereby prior microbial exposures lead to beneficial changes in CD4+ lymphocytes, here we use an adoptive cell transfer model and find that too few prior microbe exposures alternatively result in increased inflammation-associated cancer growth in susceptible recipient mice. Specifically, purified CD4+ lymphocytes collected from 'restricted flora' donors increases multiplicity and features of malignancy in intestinal polyps of recipient ApcMin/+ mice, coincident with increased inflammatory cell infiltrates and instability of the intestinal microbiota. We conclude that while a competent immune system serves to maintain intestinal homeostasis and good health, under hygienic rearing conditions CD4+ lymphocytes instead exacerbate inflammation-associated tumorigenesis, subsequently contributing to more frequent cancers in industrialized societies.
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Affiliation(s)
- Tatiana Levkovich
- Division of Comparative Medicine, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139
| | - Theofilos Poutahidis
- Division of Comparative Medicine, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139 ; Laboratory of Pathology, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, Greece 54124
| | - Kelsey Cappelle
- Division of Comparative Medicine, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139
| | - Mark B Smith
- Biological Engineering, Massachusetts Institute of Technology, Cambridge MA 02139 United States
| | - Allison Perrotta
- Biological Engineering, Massachusetts Institute of Technology, Cambridge MA 02139 United States
| | - Eric J Alm
- Biological Engineering, Massachusetts Institute of Technology, Cambridge MA 02139 United States ; Broad Institute of MIT and Harvard, Cambridge, MA, United States
| | - Susan E Erdman
- Division of Comparative Medicine, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139
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Abstract
It is recently shown that beneficial environmental microbes stimulate integrated immune and neuroendocrine factors throughout the body, consequently modulating regulatory T-lymphocyte phenotypes, maintaining systemic immune balance, and determining the fate of preneoplastic lesions toward regression while sustaining whole body good health. Stimulated by a gut microbiota-centric systemic homeostasis hypothesis, we set out to explore the influence of the gut microbiome to explain the paradoxical roles of regulatory T-lymphocytes in cancer development and growth. This paradigm shift places cancer prevention and treatment into a new broader context of holobiont engineering to cultivate a tumor-suppressive macroenvironment.
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Affiliation(s)
- Theofilos Poutahidis
- Division of Comparative Medicine, Massachusetts Institute of Technology , Cambridge, MA , USA ; Laboratory of Pathology, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki , Thessaloniki , Greece
| | - Markus Kleinewietfeld
- Departments of Neurology and Immunobiology, Yale School of Medicine , New Haven, CT , USA ; Broad Institute, Massachusetts Institute of Technology and Harvard University , Cambridge, MA , USA ; Faculty of Medicine, Dresden University of Technology (TUD) , Dresden , Germany
| | - Susan E Erdman
- Division of Comparative Medicine, Massachusetts Institute of Technology , Cambridge, MA , USA
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Abstract
Earlier investigations of the tumor microenvironment unveiled systemic networks presenting novel therapeutic opportunities. It has been recently shown that gut microbes modulate whole host immune and neuroendocrine factors impacting the fate of distant preneoplastic lesions toward malignancy or regression. These findings establish a new paradigm of holobiont therapeutic engineering in emerging tumor macroenvironments.
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Affiliation(s)
- Susan E Erdman
- Division of Comparative Medicine; Massachusetts Institute of Technology; Cambridge, MA USA
| | - Theofilos Poutahidis
- Division of Comparative Medicine; Massachusetts Institute of Technology; Cambridge, MA USA ; Laboratory of Pathology; Faculty of Veterinary Medicine; Aristotle University of Thessaloniki; Thessaloniki, Greece
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Karamanavi E, Angelopoulou K, Lavrentiadou S, Tsingotjidou A, Abas Z, Taitzoglou I, Vlemmas I, Erdman SE, Poutahidis T. Urokinase-type plasminogen activator deficiency promotes neoplasmatogenesis in the colon of mice. Transl Oncol 2014; 7:174-187.e5. [PMID: 24913672 PMCID: PMC4101295 DOI: 10.1016/j.tranon.2014.02.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2013] [Revised: 01/14/2014] [Accepted: 01/15/2014] [Indexed: 12/19/2022] Open
Abstract
Urokinase-type plasminogen activator (uPA) participates in cancer-related biologic processes, such as wound healing and inflammation. The present study aimed to investigate the effect of uPA deficiency on the long-term outcome of early life episodes of dextran sodium sulfate (DSS)-induced colitis in mice. Wild-type (WT) and uPA-deficient (uPA(-/-)) BALB/c mice were treated with DSS or remained untreated. Mice were necropsied either 1 week or 7 months after DSS treatment. Colon samples were analyzed by histopathology, immunohistochemistry, ELISA, and real-time polymerase chain reaction. At 7 months, with no colitis evident, half of the uPA(-/-) mice had large colonic polypoid adenomas, whereas WT mice did not. One week after DSS treatment, there were typical DSS-induced colitis lesions in both WT and uPA(-/-) mice. The affected colon of uPA(-/-) mice, however, had features of delayed ulcer re-epithelialization and dysplastic lesions of higher grade developing on the basis of a significantly altered mucosal inflammatory milieu. The later was characterized by more neutrophils and macrophages, less regulatory T cells (Treg), significantly upregulated cytokines, including interleukin-6 (IL-6), IL-17, tumor necrosis factor-α, and IL-10, and lower levels of active transforming growth factor-β1 (TGF-β1) compared to WT mice. Dysfunctional Treg, more robust protumorigenic inflammatory events, and an inherited inability to produce adequate amounts of extracellular active TGF-β1 due to uPA deficiency are interlinked as probable explanations for the inflammatory-induced neoplasmatogenesis in the colon of uPA(-/-) mice.
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Affiliation(s)
- Elisavet Karamanavi
- Laboratory of Pathology, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Katerina Angelopoulou
- Laboratory of Biochemistry and Toxicology, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Sophia Lavrentiadou
- Laboratory of Physiology, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Anastasia Tsingotjidou
- Laboratory of Anatomy, Histology and Embryology, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Zaphiris Abas
- Department of Agricultural Development, Democritus University of Thrace, Orestiada, Greece
| | - Ioannis Taitzoglou
- Laboratory of Physiology, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Ioannis Vlemmas
- Laboratory of Pathology, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Suzan E Erdman
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Theofilos Poutahidis
- Laboratory of Pathology, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece.
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Lakritz JR, Poutahidis T, Levkovich T, Varian BJ, Ibrahim YM, Chatzigiagkos A, Mirabal S, Alm EJ, Erdman SE. Beneficial bacteria stimulate host immune cells to counteract dietary and genetic predisposition to mammary cancer in mice. Int J Cancer 2014; 135:529-40. [PMID: 24382758 PMCID: PMC4131439 DOI: 10.1002/ijc.28702] [Citation(s) in RCA: 92] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2013] [Accepted: 12/23/2013] [Indexed: 12/16/2022]
Abstract
Recent studies suggest health benefits including protection from cancer after eating fermented foods such as probiotic yogurt, though the mechanisms are not well understood. Here we tested mechanistic hypotheses using two different animal models: the first model studied development of mammary cancer when eating a Westernized diet, and the second studied animals with a genetic predilection to breast cancer. For the first model, outbred Swiss mice were fed a Westernized chow putting them at increased risk for development of mammary tumors. In this Westernized diet model, mammary carcinogenesis was inhibited by routine exposure to Lactobacillus reuteri ATCC-PTA-6475 in drinking water. The second model was FVB strain erbB2 (HER2) mutant mice, genetically susceptible to mammary tumors mimicking breast cancers in humans, being fed a regular (non-Westernized) chow diet. We found that oral supplement with these purified lactic acid bacteria alone was sufficient to inhibit features of mammary neoplasia in both models. The protective mechanism was determined to be microbially-triggered CD4+CD25+ lymphocytes. When isolated and transplanted into other subjects, these L. reuteri-stimulated lymphocytes were sufficient to convey transplantable anti-cancer protection in the cell recipient animals. These data demonstrate that host immune responses to environmental microbes significantly impact and inhibit cancer progression in distal tissues such as mammary glands, even in genetically susceptible mice. This leads us to conclude that consuming fermentative microbes such as L. reuteri may offer a tractable public health approach to help counteract the accumulated dietary and genetic carcinogenic events integral in the Westernized diet and lifestyle.
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Affiliation(s)
- Jessica R Lakritz
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA
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40
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Poutahidis T, Springer A, Levkovich T, Qi P, Varian BJ, Lakritz JR, Ibrahim YM, Chatzigiagkos A, Alm EJ, Erdman SE. Probiotic microbes sustain youthful serum testosterone levels and testicular size in aging mice. PLoS One 2014; 9:e84877. [PMID: 24392159 PMCID: PMC3879365 DOI: 10.1371/journal.pone.0084877] [Citation(s) in RCA: 87] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2013] [Accepted: 11/20/2013] [Indexed: 12/12/2022] Open
Abstract
The decline of circulating testosterone levels in aging men is associated with adverse health effects. During studies of probiotic bacteria and obesity, we discovered that male mice routinely consuming purified lactic acid bacteria originally isolated from human milk had larger testicles and increased serum testosterone levels compared to their age-matched controls. Further investigation using microscopy-assisted histomorphometry of testicular tissue showed that mice consuming Lactobacillus reuteri in their drinking water had significantly increased seminiferous tubule cross-sectional profiles and increased spermatogenesis and Leydig cell numbers per testis when compared with matched diet counterparts This showed that criteria of gonadal aging were reduced after routinely consuming a purified microbe such as L. reuteri. We tested whether these features typical of sustained reproductive fitness may be due to anti-inflammatory properties of L. reuteri, and found that testicular mass and other indicators typical of old age were similarly restored to youthful levels using systemic administration of antibodies blocking pro-inflammatory cytokine interleukin-17A. This indicated that uncontrolled host inflammatory responses contributed to the testicular atrophy phenotype in aged mice. Reduced circulating testosterone levels have been implicated in many adverse effects; dietary L. reuteri or other probiotic supplementation may provide a viable natural approach to prevention of male hypogonadism, absent the controversy and side-effects of traditional therapies, and yield practical options for management of disorders typically associated with normal aging. These novel findings suggest a potential high impact for microbe therapy in public health by imparting hormonal and gonad features of reproductive fitness typical of much younger healthy individuals.
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Affiliation(s)
- Theofilos Poutahidis
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
- Laboratory of Pathology, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Alex Springer
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
- Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
| | - Tatiana Levkovich
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
| | - Peimin Qi
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
| | - Bernard J. Varian
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
| | - Jessica R. Lakritz
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
| | - Yassin M. Ibrahim
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
| | - Antonis Chatzigiagkos
- Laboratory of Pathology, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Eric J. Alm
- Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
- Broad Institute of MIT and Harvard, Cambridge, Massachusetts, United States of America
- * E-mail: (EJA); (SEE)
| | - Susan E. Erdman
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
- * E-mail: (EJA); (SEE)
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Poutahidis T, Kleinewietfeld M, Smillie C, Levkovich T, Perrotta A, Bhela S, Varian BJ, Ibrahim YM, Lakritz JR, Kearney SM, Chatzigiagkos A, Hafler DA, Alm EJ, Erdman SE. Microbial reprogramming inhibits Western diet-associated obesity. PLoS One 2013; 8:e68596. [PMID: 23874682 PMCID: PMC3707834 DOI: 10.1371/journal.pone.0068596] [Citation(s) in RCA: 121] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2013] [Accepted: 05/29/2013] [Indexed: 11/20/2022] Open
Abstract
A recent epidemiological study showed that eating ‘fast food’ items such as potato chips increased likelihood of obesity, whereas eating yogurt prevented age-associated weight gain in humans. It was demonstrated previously in animal models of obesity that the immune system plays a critical role in this process. Here we examined human subjects and mouse models consuming Westernized ‘fast food’ diet, and found CD4+ T helper (Th)17-biased immunity and changes in microbial communities and abdominal fat with obesity after eating the Western chow. In striking contrast, eating probiotic yogurt together with Western chow inhibited age-associated weight gain. We went on to test whether a bacteria found in yogurt may serve to lessen fat pathology by using purified Lactobacillus reuteri ATCC 6475 in drinking water. Surprisingly, we discovered that oral L. reuteri therapy alone was sufficient to change the pro-inflammatory immune cell profile and prevent abdominal fat pathology and age-associated weight gain in mice regardless of their baseline diet. These beneficial microbe effects were transferable into naïve recipient animals by purified CD4+ T cells alone. Specifically, bacterial effects depended upon active immune tolerance by induction of Foxp3+ regulatory T cells (Treg) and interleukin (Il)-10, without significantly changing the gut microbial ecology or reducing ad libitum caloric intake. Our finding that microbial targeting restored CD4+ T cell balance and yielded significantly leaner animals regardless of their dietary ‘fast food’ indiscretions suggests population-based approaches for weight management and enhancing public health in industrialized societies.
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Affiliation(s)
- Theofilos Poutahidis
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
- Laboratory of Pathology, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Markus Kleinewietfeld
- Departments of Neurology and Immunobiology, Yale School of Medicine, New Haven, Connecticut, United States of America
- Broad Institute, Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts, United States of America
| | - Christopher Smillie
- Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
| | - Tatiana Levkovich
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
| | - Alison Perrotta
- Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
| | - Siddheshvar Bhela
- Departments of Neurology and Immunobiology, Yale School of Medicine, New Haven, Connecticut, United States of America
| | - Bernard J. Varian
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
| | - Yassin M. Ibrahim
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
| | - Jessica R. Lakritz
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
| | - Sean M. Kearney
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
- Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
| | - Antonis Chatzigiagkos
- Laboratory of Pathology, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - David A. Hafler
- Departments of Neurology and Immunobiology, Yale School of Medicine, New Haven, Connecticut, United States of America
- Broad Institute, Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts, United States of America
- * E-mail: (EJA); (DAH); (SEE)
| | - Eric J. Alm
- Broad Institute, Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts, United States of America
- Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
- Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
- * E-mail: (EJA); (DAH); (SEE)
| | - Susan E. Erdman
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
- * E-mail: (EJA); (DAH); (SEE)
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Tsioli V, Papazoglou L, Basdani E, Kosmas P, Brellou G, Poutahidis T, Bagias S. Surgical management of recurrent cervical sialoceles in four dogs. J Small Anim Pract 2013; 54:331-3. [DOI: 10.1111/jsap.12044] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- V. Tsioli
- Clinic of Surgery, Faculty of Veterinary Medicine; University of Thessaly; Karditsa Greece
| | - L.G. Papazoglou
- Department of Clinical Sciences, Faculty of Veterinary Medicine; Aristotle University of Thessaloniki; 54627 Thessaloniki Greece
| | - E. Basdani
- Department of Clinical Sciences, Faculty of Veterinary Medicine; Aristotle University of Thessaloniki; 54627 Thessaloniki Greece
| | - P. Kosmas
- Department of Clinical Sciences, Faculty of Veterinary Medicine; Aristotle University of Thessaloniki; 54627 Thessaloniki Greece
| | - G. Brellou
- Laboratory of Pathology, Faculty of Veterinary Medicine; Aristotle University of Thessaloniki; Thessaloniki Greece
| | - T. Poutahidis
- Laboratory of Pathology, Faculty of Veterinary Medicine; Aristotle University of Thessaloniki; Thessaloniki Greece
| | - S. Bagias
- Cura Animalis Small Animal Practice; 17562 Athens Greece
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Levkovich T, Poutahidis T, Smillie C, Varian BJ, Ibrahim YM, Lakritz JR, Alm EJ, Erdman SE. Probiotic bacteria induce a 'glow of health'. PLoS One 2013; 8:e53867. [PMID: 23342023 PMCID: PMC3547054 DOI: 10.1371/journal.pone.0053867] [Citation(s) in RCA: 104] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2012] [Accepted: 12/05/2012] [Indexed: 02/07/2023] Open
Abstract
Radiant skin and hair are universally recognized as indications of good health. However, this 'glow of health' display remains poorly understood. We found that feeding of probiotic bacteria to aged mice induced integumentary changes mimicking peak health and reproductive fitness characteristic of much younger animals. Eating probiotic yogurt triggered epithelial follicular anagen-phase shift with sebocytogenesis resulting in thick lustrous fur due to a bacteria-triggered interleukin-10-dependent mechanism. Aged male animals eating probiotics exhibited increased subcuticular folliculogenesis, when compared with matched controls, yielding luxuriant fur only in probiotic-fed subjects. Female animals displayed probiotic-induced hyperacidity coinciding with shinier hair, a feature that also aligns with fertility in human females. Together these data provide insights into mammalian evolution and novel strategies for integumentary health.
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Affiliation(s)
- Tatiana Levkovich
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
| | - Theofilos Poutahidis
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
- Laboratory of Pathology, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Christopher Smillie
- Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
| | - Bernard J. Varian
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
| | - Yassin M. Ibrahim
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
| | - Jessica R. Lakritz
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
| | - Eric J. Alm
- Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
- Biological Engineering, Massachusetts Institute of Technology, Cambridge Massachusetts, United States of America
- Broad Institute of MIT and Harvard, Cambridge, Massachusetts, United States of America
- * E-mail: (EJA); (SEE)
| | - Susan E. Erdman
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
- * E-mail: (EJA); (SEE)
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Karagiannis GS, Poutahidis T, Erdman SE, Kirsch R, Riddell RH, Diamandis EP. Cancer-associated fibroblasts drive the progression of metastasis through both paracrine and mechanical pressure on cancer tissue. Mol Cancer Res 2012; 10:1403-18. [PMID: 23024188 DOI: 10.1158/1541-7786.mcr-12-0307] [Citation(s) in RCA: 396] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Neoplastic cells recruit fibroblasts through various growth factors and cytokines. These "cancer-associated fibroblasts" (CAF) actively interact with neoplastic cells and form a myofibroblastic microenvironment that promotes cancer growth and survival and supports malignancy. Several products of their paracrine signaling repertoire have been recognized as tumor growth and metastasis regulators. However, tumor-promoting cell signaling is not the only reason that makes CAFs key components of the "tumor microenvironment," as CAFs affect both the architecture and growth mechanics of the developing tumor. CAFs participate in the remodeling of peritumoral stroma, which is a prerequisite of neoplastic cell invasion, expansion, and metastasis. CAFs are not present peritumorally as individual cells but they act orchestrated to fully deploy a desmoplastic program, characterized by "syncytial" (or collective) configuration and altered cell adhesion properties. Such myofibroblastic cohorts are reminiscent of those encountered in wound-healing processes. The view of "cancer as a wound that does not heal" led to useful comparisons between wound healing and tumorigenesis and expanded our knowledge of the role of CAF cohorts in cancer. In this integrative model of cancer invasion and metastasis, we propose that the CAF-supported microenvironment has a dual tumor-promoting role. Not only does it provide essential signals for cancer cell dedifferentiation, proliferation, and survival but it also facilitates cancer cell local invasion and metastatic phenomena.
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Affiliation(s)
- George S Karagiannis
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Canada
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Varnalidis I, Ioannidis O, Karamanavi E, Ampas Z, Poutahidis T, Taitzoglou I, Paraskevas G, Botsios D. Omega 3 fatty acids supplementation has an ameliorative effect in experimental ulcerative colitis despite increased colonic neutrophil infiltration. Rev Esp Enferm Dig 2012; 103:511-8. [PMID: 22054266 DOI: 10.4321/s1130-01082011001000003] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
PURPOSE omega 3 polyunsaturated fatty acids have anti-inflammatory properties and can be beneficial in the treatment of inflammatory diseases, such as ulcerative colitis. Dextran sodium sulphate (DSS) colitis in rats appears to mimic nearly all of the morphological characteristics and lesion distributions of ulcerative colitis. The purpose of the current study was to investigate the efficacy of omega 3 fatty acids in the treatment of experimental ulcerative colitis. METHODS thirty-six Wistar rats were randomly assigned to group A or group B receiving 5% dextran sulfate sodium (DSS) in their drinking water for eight days. For the next eight days post-DSS, group A animals received tap-water, and group B animals were fed a nutritional solution containing high levels of omega 3 polyunsaturated fatty acids (ProSure®, Abbott Laboratories, Zwolle, Netherlands) once per day, administrated with a orogastric feeding tube. RESULTS animals fed an omega 3 rich diet exhibited a statistically significant increase in hematocrit and hemoglobin levels, compared to animals drinking tap water, and a trend towards histopathological and clinical improvement, with the administration of omega 3 fatty acids ameliorating epithelial erosion by day 8 post-DSS, but no statistically significant difference was observed between group A and group B animals at 4 or 8 days post-DSS. Also, a statistically significant increase in neutrophil infiltration was observed, as depicted by myelohyperoxidase activity. CONCLUSION our findings support a positive role of omega 3 polyunsaturated fatty acids supplementation in an experimental model of ulcerative colitis despite the increased colonic neutrophil infiltration. Further studies are needed in order to investigate the role of increased neutrophils in colonic mucosa.
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Affiliation(s)
- Ioannis Varnalidis
- Fourth Surgical Department, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece.
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Doulberis M, Angelopoulou K, Kaldrymidou E, Tsingotjidou A, Abas Z, Erdman S, Poutahidis T. Cholera-Toxin Suppresses Carcinogenesis in a Mouse Model of Inflammation-Driven Sporadic Colon Cancer. J Comp Pathol 2012. [DOI: 10.1016/j.jcpa.2011.11.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Karamanavi E, Angelopoulou K, Lavrentiadou S, Tsingotjidou A, Abas Z, Taitzoglou I, Vlemmas I, Erdman S, Poutahidis T. Urokinase-Type Plasminogen Activator Deficiency Promotes Colitis-Associated Carcinogenesis in Mice. J Comp Pathol 2012. [DOI: 10.1016/j.jcpa.2011.11.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Avraham Y, Grigoriadis N, Poutahidis T, Vorobiev L, Magen I, Ilan Y, Mechoulam R, Berry E. Cannabidiol improves brain and liver function in a fulminant hepatic failure-induced model of hepatic encephalopathy in mice. Br J Pharmacol 2011; 162:1650-8. [PMID: 21182490 DOI: 10.1111/j.1476-5381.2010.01179.x] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND AND PURPOSE Hepatic encephalopathy is a neuropsychiatric disorder of complex pathogenesis caused by acute or chronic liver failure. We investigated the effects of cannabidiol, a non-psychoactive constituent of Cannabis sativa with anti-inflammatory properties that activates the 5-hydroxytryptamine receptor 5-HT(1A) , on brain and liver functions in a model of hepatic encephalopathy associated with fulminant hepatic failure induced in mice by thioacetamide. EXPERIMENTAL APPROACH Female Sabra mice were injected with either saline or thioacetamide and were treated with either vehicle or cannabidiol. Neurological and motor functions were evaluated 2 and 3 days, respectively, after induction of hepatic failure, after which brains and livers were removed for histopathological analysis and blood was drawn for analysis of plasma liver enzymes. In a separate group of animals, cognitive function was tested after 8 days and brain 5-HT levels were measured 12 days after induction of hepatic failure. KEY RESULTS Neurological and cognitive functions were severely impaired in thioacetamide-treated mice and were restored by cannabidiol. Similarly, decreased motor activity in thioacetamide-treated mice was partially restored by cannabidiol. Increased plasma levels of ammonia, bilirubin and liver enzymes, as well as enhanced 5-HT levels in thioacetamide-treated mice were normalized following cannabidiol administration. Likewise, astrogliosis in the brains of thioacetamide-treated mice was moderated after cannabidiol treatment. CONCLUSIONS AND IMPLICATIONS Cannabidiol restores liver function, normalizes 5-HT levels and improves brain pathology in accordance with normalization of brain function. Therefore, the effects of cannabidiol may result from a combination of its actions in the liver and brain.
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Affiliation(s)
- Y Avraham
- Department of Human Nutrition and Metabolism, Braun School of Public Health, Hadassah-Hebrew University Medical School, Jerusalem, Israel.
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Houghton J, Li H, Fan X, Liu Y, Liu JH, Rao VP, Poutahidis T, Taylor CL, Jackson EA, Hewes C, Lyle S, Cerny A, Bowen G, Cerny J, Moore N, Kurt-Jones EA, Erdman SE. Mutations in bone marrow-derived stromal stem cells unmask latent malignancy. Stem Cells Dev 2011; 19:1153-66. [PMID: 20199238 DOI: 10.1089/scd.2009.0439] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Neoplastic epithelia may remain dormant and clinically unapparent in human patients for decades. Multiple risk factors including mutations in tumor cells or the stromal cells may affect the switch from dormancy to malignancy. Gene mutations, including p53 mutations, within the stroma of tumors are associated with a worse clinical prognosis; however, it is not known if these stromal mutations can promote tumors in genetically at-risk tissue. To address this question, Apc(Min/+) and Apc(Min/+) Rag2(-/-) mice, which have a predilection to mammary carcinoma (as well as wild-type (wt) mice), received mesenchymal stem cells (MSC) with mutant p53 (p53MSC) transferred via tail vein injection. In the wt mouse, p53MSC circulated in the periphery and homed to the marrow cavity where they could be recovered up to a year later without apparent effect on the health of the mouse. No mammary tumors were found. However, in mice carrying the Apc(Min/+) mutation, p53MSC homed to mammary tissue and significantly increased the incidence of mammary carcinoma. Tumor necrosis factor (TNF)-alpha-dependent factors elaborated from mesenchymal cells converted quiescent epithelia into clinically apparent disease. The increased cancer phenotype was completely preventable with neutralization of TNF-alpha or by transfer of CD4(+) regulatory T cells from immune competent donors, demonstrating that immune competency to regulate inflammation was sufficient to maintain neoplastic dormancy even in the presence of oncogenic epithelial and stromal mutations. The significant synergy between host immunity and mesenchymal cells identified here may restructure treatments to restore an anticancer microenvironment.
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Affiliation(s)
- JeanMarie Houghton
- Department of Medicine, Division of Gastroenterology, University of Massachusetts Medical School, Worcester, Massachusetts 01635, USA.
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Abstract
Chronic inflammation is essential for cancer growth and metastasis. It follows that factors reducing inflammation would abrogate cancer and restore tissue health. However, roles for anti-inflammatory CD4+ regulatory cells (T(REG)) in cancer are enigmatic and controversial. Our recent data reveal that T(REG) may function in cancer similarly to inflammatory bowel disease or multiple sclerosis, whereby T(REG) accumulate but lack potency to restore tissue homeostasis under inflammatory conditions. Interestingly, early life exposures to diverse environmental organisms reinforce a protective T(REG) phenotype that inhibits cancer. In contrast, hygienic individuals with few exposures earlier in life suffer from a dysregulated T(REG) feedback loop. Consequently, hygienic subjects have increased risk of malignancy later in life. This cancer condition is reversible by blocking underlying inflammation. Taken together, these data help explain increased inflammation-associated cancer rates in hygienic societies and identify targets to abrogate cancer and restore overall health.
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Affiliation(s)
- Susan E Erdman
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
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