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Pérot P, Mullins CS, Naville M, Bressan C, Hühns M, Gock M, Kühn F, Volff JN, Trillet-Lenoir V, Linnebacher M, Mallet F. Expression of young HERV-H loci in the course of colorectal carcinoma and correlation with molecular subtypes. Oncotarget 2016; 6:40095-111. [PMID: 26517682 PMCID: PMC4741882 DOI: 10.18632/oncotarget.5539] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [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: 06/28/2015] [Accepted: 10/13/2015] [Indexed: 01/02/2023] Open
Abstract
Background Expression of the human endogenous retrovirus (HERV)-H family has been associated with colorectal carcinomas (CRC), yet no individual HERV-H locus expression has been thoroughly correlated with clinical data. Here, we characterized HERV-H reactivations in clinical CRC samples by integrating expression profiles, molecular patterns and clinical data. Expression of relevant HERV-H sequences was analyzed by qRT-PCR on two well-defined clinical cohorts (n = 139 pairs of tumor and adjacent normal colon tissue) including samples from adenomas (n = 21) and liver metastases (n = 16). Correlations with clinical and molecular data were assessed. Results CRC specific HERV-H sequences were validated and found expressed throughout CRC disease progression. Correlations between HERV-H expression and lymph node invasion of tumor cells (p = 0.0006) as well as microsatellite instable tumors (p < 0.0001) were established. No association with regard to age, tumor localization, grading or common mutations became apparent. Interestingly, CRC expressed elements belonged to specific young HERV-H subfamilies and their 5′ LTR often presented active histone marks. Conclusion These results suggest a functional role of HERV-H sequences in colorectal carcinogenesis. The pronounced connection with microsatellite instability warrants a more detailed investigation. Thus, HERV-H sequences in addition to tumor specific mutations may represent clinically relevant, truly CRC specific markers for diagnostic, prognostic and therapeutic purposes.
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Affiliation(s)
- Philippe Pérot
- Cancer Biomarkers Research Group, Joint Unit Hospices Civils de Lyon, bioMérieux, Centre Hospitalier Lyon Sud, Pierre Bénite, France.,Current address: Institut Pasteur, Laboratory for Pathogen Discovery, Paris, France
| | - Christina Susanne Mullins
- Cancer Biomarkers Research Group, Joint Unit Hospices Civils de Lyon, bioMérieux, Centre Hospitalier Lyon Sud, Pierre Bénite, France.,Centre d'Investigation des Thérapeutiques en Oncologie et Hématologie, EMR 3738 Lyon Claude Bernard University, Institut de Cancérologie des Hospices Civils de Lyon, Lyon, France
| | - Magali Naville
- Institut de Génomique Fonctionnelle de Lyon, Ecole Normale Supérieure de Lyon, CNRS/Université Lyon I, Lyon, France
| | - Cédric Bressan
- Cancer Biomarkers Research Group, Joint Unit Hospices Civils de Lyon, bioMérieux, Centre Hospitalier Lyon Sud, Pierre Bénite, France
| | - Maja Hühns
- Institute of Pathology, University Medicine Rostock, Rostock, Germany
| | - Michael Gock
- Department of General, Thoracic, Vascular and Transplantation Surgery, University Medicine Rostock, Rostock, Germany
| | - Florian Kühn
- Department of General, Thoracic, Vascular and Transplantation Surgery, University Medicine Rostock, Rostock, Germany
| | - Jean-Nicolas Volff
- Institut de Génomique Fonctionnelle de Lyon, Ecole Normale Supérieure de Lyon, CNRS/Université Lyon I, Lyon, France
| | - Véronique Trillet-Lenoir
- Centre d'Investigation des Thérapeutiques en Oncologie et Hématologie, EMR 3738 Lyon Claude Bernard University, Institut de Cancérologie des Hospices Civils de Lyon, Lyon, France
| | - Michael Linnebacher
- Department of General Surgery, Molecular Oncology and Immunotherapy, University Medicine Rostock, Rostock, Germany
| | - François Mallet
- Cancer Biomarkers Research Group, Joint Unit Hospices Civils de Lyon, bioMérieux, Centre Hospitalier Lyon Sud, Pierre Bénite, France
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Daumas RP, Brasil P, de V Carvalhaes Oliveira R, Carvalho BBG, Bressan C, Georg I, Nogueira R, Wakimoto M, Carneiro DV, Passos SRL. O4-3.3 Accuracy of clinical and laboratory signs for dengue diagnosis. Br J Soc Med 2011. [DOI: 10.1136/jech.2011.142976b.21] [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: 11/04/2022]
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Bressan C, Geuna S, Malerba G, Giacobini G, Giordano M, Robecchi MG, Vercellino V. Descriptive and topographic anatomy of the accessory infraorbital foramen. Clinical implications in maxillary surgery. Minerva Stomatol 2004; 53:495-505. [PMID: 15499301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/01/2023]
Abstract
AIM Study of frequency and position of accessory infraorbital foramen in a large craniological sample. METHODS A sample of 1 064 skulls from the craniological collection of the Department of Anatomy, Pharmacology and Forensic Medicine of the University of Turin (Italy) was investigated. RESULTS Accessory infraorbital foramen was found in 4.7% of the skulls (5.4% in male and 4.26% in female skulls) with a higher frequency on the left side, both in male and in female skulls. CONCLUSION These results increase our knowledge of the interindividual anatomic variability of the infraorbital region and can be of help for the maxillo-facial surgeon, especially in trunk block of the infraorbital nerve.
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Affiliation(s)
- C Bressan
- Dentistry and Stomatology Unit, Department of General and Specialistic Surgery, ASL 2, Turin, Italy
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Mariotti R, Cristino L, Bressan C, Boscolo S, Bentivoglio M. Altered reaction of facial motoneurons to axonal damage in the presymptomatic phase of a murine model of familial amyotrophic lateral sclerosis. Neuroscience 2003; 115:331-5. [PMID: 12421599 DOI: 10.1016/s0306-4522(02)00448-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
In transgenic mice carrying the G93A human mutation of Cu/Zn superoxide dismutase (SOD1), which provide a model of familial amyotrophic lateral sclerosis, we investigated, before the onset of symptoms, two parameters of the response of facial motoneurons to nerve transection, i.e. nitric oxide synthase induction and motoneuron loss. Axotomy elicited after 2 and 3 weeks high nitric oxide synthase expression in facial motoneurons of wild-type mice, whereas the induction was very weak or absent in transgenic mice. At 1 month post-axotomy, loss of facial motoneurons was significantly higher in mutant mice than in wild-type littermates. Thus, SOD1 mutation interferes with the oxidative cascade elicited by axonal injury in cranial motoneurons. The results also indicate that the adverse gain of function of the mutant SOD1 enhances the vulnerability of motoneurons to peripheral stressful conditions.
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Affiliation(s)
- R Mariotti
- Department of Morphological and Biomedical Sciences, University of Verona, Faculty of Medicine, Strada Le Grazie 8, Italy
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Mariotti R, Tongiorgi E, Bressan C, Kristensson K, Bentivoglio M. Priming by muscle inflammation alters the response and vulnerability to axotomy-induced damage of the rat facial motor nucleus. Exp Neurol 2002; 176:133-42. [PMID: 12093090 DOI: 10.1006/exnr.2002.7908] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
To ascertain whether signaling due to peripheral inflammation affects motoneuron vulnerability, we examined in adult rats the reaction to axonal injury of facial motoneurons primed by muscle inflammation. In this double-hit paradigm, preconditioning was achieved by injections into the facial muscles of the T cell mitogen phytohemagglutinin, which was found in a previous study ( 11 ) to elicit a retrograde response in motoneurons. Facial nerve transection was used as test lesion. Intramuscular injections of saline prior to axotomy were used as control for lectin pretreatment. In rats pretreated with phytohemagglutinin injection, upregulation of the expression of the antiapoptotic bcl-2 gene, examined with in situ hybridization, was significantly higher in facial motoneurons at 2 days postaxotomy compared with saline-injected control cases. After repeated phytohemagglutinin injections followed by nerve transection, induction in facial motoneurons of nitric oxide synthase, revealed by histochemistry and immunohistochemistry, as well as activation of the surrounding microglia, was enhanced at 14 days postaxotomy with respect to the saline-treated control cases. At the same time point, no significant intergroup difference was detected in the intensity of astrocytic activation. At 1 month postaxotomy, stereological cell counts revealed that motoneuron loss was significantly greater in the cases pretreated with phytohemagglutinin than in the saline-treated cases. The data point out that the response of the facial motor nucleus to axonal damage is altered by previous exposure to peripheral inflammation and that such preconditioning stimulus enhances motoneuron vulnerability to nerve injury.
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Affiliation(s)
- R Mariotti
- Department of Morphological and Biomedical Sciences, University of Verona, Verona, Italy
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Mariotti R, Tongiorgi E, Bressan C, Armellin M, Kristensson K, Bentivoglio M. Retrograde response of the rat facial motor nucleus to muscle inflammation elicited by phytohaemagglutinin. Eur J Neurosci 2001; 13:1329-38. [PMID: 11298793 DOI: 10.1046/j.0953-816x.2001.01507.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
To investigate whether motoneurons react to signals deriving from target inflammation, we studied the facial motor nucleus after injections of phytohaemagglutinin in the snout of adult rats. This plant lectin is a tool widely used to induce proliferation and activation of T lymphocytes, and we observed marked lymphocyte infiltration in the injected facial muscles. Retrograde labelling of motoneurons was not detected after peripheral injections of fluorochrome-conjugated phytohaemagglutinin. Nitric oxide synthase, revealed by NADPH-diaphorase histochemistry, OX-42-immunoreactive microglia, and expression of the cell death repressor gene bcl-2, investigated with nonradioactive in situ hybridization and immunohistochemistry, were evaluated in the facial nucleus. Daily phytohaemagglutinin injections for 4 days, mimicking repeated muscle exposure to inflammatory stimuli, resulted after 2-day survival in NADPH-diaphorase induction in motoneurons and marked activation of the surrounding microglia. Quantitative image analysis of NADPH-diaphorase staining, and OX-42 immunoreactivity and microglial cell counts indicated highly significant increases with respect to saline-injected control cases. The occurrence of a neuroprotective retrograde response was evaluated monitoring bcl-2 expression. Following single phytohaemagglutinin administration, bcl-2 mRNA was significantly upregulated at 6 h in facial motoneurons and returned to basal levels at 24 h. Bcl-2 immunoreactivity was markedly upregulated at 24 h and was still significantly higher than in controls at 7 days, when concomitant NADPH-diaphorase induction in motoneurons and microglia activation was also observed. No degenerative features were observed in motoneurons after phytohaemagglutinin injections at the examined time-points. The data point out that local muscle inflammation retrogradely elicits gene activation in motoneurons and their microenvironment.
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Affiliation(s)
- R Mariotti
- Department of Morphological and Biomedical Sciences, Section of Anatomy and Histology, Medical Faculty, Strada Le Grazie 8, 37134 Verona, Italy
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Schlemper Júnior BR, Ferreira Neto JA, Thiago PDT, Bressan C, do Amarante AR. [Geographic distribution of planorbidae in Santa Catarina, Brazil]. Rev Soc Bras Med Trop 1996; 29:411-8. [PMID: 8966305 DOI: 10.1590/s0037-86821996000500002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
A revision of the malacological surveys carried out in Santa Catarina, Brazil, by the National Health Foundation in 52 counties of 8 microregions between 1981 and 1994 was made. Fifty of them were positive for Biomphalaria tenagophila, the only schistosome vector identified in the 94,535 specimens collected. Of 1,358 districts, 617 (45.4%) were positive to the vector, varying from 4.3% to 89.4% per municipality. The percentages of water bodies with planorbids varied from 0.2% to 26.3% and, of the total 28,120 examined 2,013 (7.1%) were positive. Snails infected with cercariae of Schistosoma mansoni were found in the counties of Araquari, Massaranduba, Joinville, Jaraguá do Sul and São Francisco do Sul, the last two constituting the southernmost focus of schistosomiasis mansoni in Brazil. Other planorbid species identified were B. peregrina, B. oligoza, B. schrammi, B. straminea and B. occidentalis.
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