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de Almeida V, Mendes ND, Zuccoli GS, Reis-de-Oliveira G, Almeida GM, Podolsky-Gondim GG, Neder L, Martins-de-Souza D, Sebollela A. NMDA glutamate receptor antagonist MK-801 induces proteome changes in adult human brain slices which are partially counteracted by haloperidol and clozapine. J Neurochem 2024; 168:238-250. [PMID: 38332572 DOI: 10.1111/jnc.16059] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Revised: 11/27/2023] [Accepted: 01/04/2024] [Indexed: 02/10/2024]
Abstract
Deciphering the molecular pathways associated with N-methyl-D-aspartate receptor (NMDAr) hypofunction and its interaction with antipsychotics is necessary to advance our understanding of the basis of schizophrenia, as well as our capacity to treat this disease. In this regard, the development of human brain-derived models that are amenable to studying the neurobiology of schizophrenia may contribute to filling the gaps left by the widely employed animal models. Here, we assessed the proteomic changes induced by the NMDA glutamate receptor antagonist MK-801 on human brain slice cultures obtained from adult donors submitted to respective neurosurgery. Initially, we demonstrated that MK-801 diminishes NMDA glutamate receptor signaling in human brain slices in culture. Next, using mass-spectrometry-based proteomics and systems biology in silico analyses, we found that MK-801 led to alterations in proteins related to several pathways previously associated with schizophrenia pathophysiology, including ephrin, opioid, melatonin, sirtuin signaling, interleukin 8, endocannabinoid, and synaptic vesicle cycle. We also evaluated the impact of both typical and atypical antipsychotics on MK-801-induced proteome changes. Interestingly, the atypical antipsychotic clozapine showed a more significant capacity to counteract the protein alterations induced by NMDAr hypofunction than haloperidol. Finally, using our dataset, we identified potential modulators of the MK-801-induced proteome changes, which may be considered promising targets to treat NMDAr hypofunction in schizophrenia. This dataset is publicly available and may be helpful in further studies aimed at evaluating the effects of MK-801 and antipsychotics in the human brain.
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Affiliation(s)
- Valéria de Almeida
- Laboratory of Neuroproteomics, Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, Brazil
| | - Niele Dias Mendes
- Department of Biochemistry and Immunology, Ribeirao Preto Medical School, University of Sao Paulo, Sao Paulo, Brazil
- Department of Pathology and Forensic Medicine, Ribeirao Preto Medical School, University of Sao Paulo, Sao Paulo, Brazil
- Division of Neurosurgery, Department of Surgery and Anatomy, Ribeirão Preto Medical School, University of São Paulo, Sao Paulo, Brazil
| | - Giuliana S Zuccoli
- Laboratory of Neuroproteomics, Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, Brazil
| | - Guilherme Reis-de-Oliveira
- Laboratory of Neuroproteomics, Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, Brazil
| | - Glaucia M Almeida
- Department of Biochemistry and Immunology, Ribeirao Preto Medical School, University of Sao Paulo, Sao Paulo, Brazil
| | - Guilherme Gozzoli Podolsky-Gondim
- Division of Neurosurgery, Department of Surgery and Anatomy, Ribeirão Preto Medical School, University of São Paulo, Sao Paulo, Brazil
| | - Luciano Neder
- Department of Pathology and Forensic Medicine, Ribeirao Preto Medical School, University of Sao Paulo, Sao Paulo, Brazil
| | - Daniel Martins-de-Souza
- Laboratory of Neuroproteomics, Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, Brazil
- Instituto Nacional de Biomarcadores em Neuropsiquiatria (INBION) Conselho Nacional de Desenvolvimento Científico e Tecnológico, Sao Paulo, Brazil
- Experimental Medicine Research Cluster (EMRC), University of Campinas, Campinas, Sao Paulo, Brazil
- D'Or Institute for Research and Education (IDOR), Sao Paulo, Brazil
| | - Adriano Sebollela
- Department of Biochemistry and Immunology, Ribeirao Preto Medical School, University of Sao Paulo, Sao Paulo, Brazil
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Moreno DA, Bonatelli M, Antoniazzi AP, de Paula FE, Leal LF, Garcia FADO, de Paula AE, Teixeira GR, Santana IVV, Saggioro F, Neder L, Valera ET, Scrideli CA, Stavale J, Malheiros SMF, Lima M, Hajj GNM, Garcia-Rivello H, Christiansen S, Nunes S, Gil-da-Costa MJ, Pinheiro J, Martins FD, Junior CA, Mançano BM, Reis RM. High frequency of WNT-activated medulloblastomas with CTNNB1 wild type suggests a higher proportion of hereditary cases in a Latin-Iberian population. Front Oncol 2023; 13:1237170. [PMID: 37746264 PMCID: PMC10513896 DOI: 10.3389/fonc.2023.1237170] [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: 06/13/2023] [Accepted: 07/31/2023] [Indexed: 09/26/2023] Open
Abstract
Purpose Medulloblastomas are the most common primary malignant brain tumors in children. They are divided into molecular subgroups: WNT-activated, SHH-Activated, TP53 mutant or wild type, and non-WNT/non-SHH (Groups 3 and 4). WNT-activated medulloblastomas are usually caused by mutations in the CTNNB1 gene (85%-90%), and most remaining cases of CTNNB1 wild type are thought to be caused by germline mutations in APC. So far, the frequencies of CTNNB1 have been reported mainly in North American and European populations. The aim of this study was to report the frequency of CTNNB1 mutations in WNT-activated medulloblastomas in a Latin-Iberian population and correlate with their clinicopathological characteristics. Methods A total of 266 medulloblastomas from seven different institutions from Brazil (n=211), Portugal (n=38), and Argentina (n=17) were evaluated. Following RNA and DNA isolation from formalin-fixed, paraffin-embedded (FFPE) tumor tissues, the molecular classification and CTNNB1 mutation analysis were performed by nCounter and Sanger sequencing, respectively. Results WNT-activated medulloblastomas accounted for 15% (40/266) of the series. We observed that 73% of WNT-activated medulloblastomas harbored CTNNB1 mutations. CTNNB1 wild-type cases (27%) were more prevalent in female individuals and suggested to be associated with a worse outcome. Among the CTNNB1 wild-type cases, the available analysis of family history revealed two cases with familiar adenomatous polyposis, harboring APC germline variants. Conclusion We observed a lower incidence of CTNNB1 mutations in WNT-activated medulloblastomas in our Latin-Iberian cohort compared to frequencies previously described in other populations. Considering that CTNNB1 wild-type cases may exhibit APC germline mutations, our study suggests a higher incidence (~30%) of hereditary WNT-activated medulloblastomas in the Latin-Iberian population.
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Affiliation(s)
| | - Murilo Bonatelli
- Molecular Diagnosis Laboratory, Barretos Cancer Hospital, Barretos, Brazil
| | | | | | - Leticia Ferro Leal
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, Brazil
- Pathology Department, Barretos Cancer Hospital, Barretos, Brazil
| | | | | | - Gustavo Ramos Teixeira
- Barretos School of Health Sciences Dr. Paulo Prata, Barretos Cancer Hospital, Barretos, Brazil
- Pathology Department, Barretos Cancer Hospital, Barretos, Brazil
| | | | - Fabiano Saggioro
- Department of Pathology and Forensic Medicine, University of São Paulo, Ribeirão Preto, Brazil
| | - Luciano Neder
- Department of Pathology and Forensic Medicine, University of São Paulo, Ribeirão Preto, Brazil
| | - Elvis Terci Valera
- Department of Pediatrics of Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Carlos Alberto Scrideli
- Department of Pediatrics of Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - João Stavale
- Department of Neurology and Neurosurgery, Federal University of São Paulo (UNIFESP), São Paulo, Brazil
| | | | - Matheus Lima
- Oncology Department, AC Camargo Hospital, São Paulo, Brazil
| | | | | | - Silvia Christiansen
- Pathology Department, Italian Hospital of Buenos Aires, Buenos Aires, Argentina
| | - Susana Nunes
- Pediatric Oncology Department, Centro Hospitalar Universitário São João, Porto, Portugal
| | | | - Jorge Pinheiro
- Department of Pathology, Centro Hospitalar Universitário São João, Porto, Portugal
| | | | | | | | - Rui Manuel Reis
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, Brazil
- Molecular Diagnosis Laboratory, Barretos Cancer Hospital, Barretos, Brazil
- ICVS/3B’s – PT Government Associate Laboratory, Braga/Guimarães, Portugal
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
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Bertol BC, Massaro JD, Debortoli G, Santos ALP, de Araújo JNG, Giorgenon TMV, Costa e Silva M, de Figueiredo-Feitosa NL, Collares CVA, de Freitas LCC, Soares EG, Neder L, Silbiger VN, Calado RT, Maciel LMZ, Donadi EA. BRAF, TERT and HLA-G Status in the Papillary Thyroid Carcinoma: A Clinicopathological Association Study. Int J Mol Sci 2023; 24:12459. [PMID: 37569841 PMCID: PMC10419559 DOI: 10.3390/ijms241512459] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Revised: 08/01/2023] [Accepted: 08/04/2023] [Indexed: 08/13/2023] Open
Abstract
As BRAF, TERT, HLA-G, and microRNAs have been individually associated with papillary thyroid carcinoma (PTC), we aimed to evaluate the individual and collaborative role of these markers in PTC in the same patient cohort. HLA-G and BRAF tumor expression was evaluated by immunohistochemistry. Using molecular methods, BRAFV600E and TERT promoter mutations were evaluated in thyroid fine needle aspirates. MicroRNA tumor profiling was investigated using massively parallel sequencing. We observed strong HLA-G (67.96%) while BRAF (62.43%) staining was observed in PTC specimens. BRAF overexpression was associated with poor response to therapy. The BRAFV600E (52.9%) and TERTC228T (13%) mutations were associated with extrathyroidal extension, advanced-age, and advanced-stage cancer. The TERT rs2853669 CC+TC genotypes (38%) were overrepresented in metastatic tumors. Nine modulated microRNAs targeting the BRAF, TERT, and/or HLA-G genes were observed in PTC and involved with cancer-related signaling pathways. The markers were individually associated with PTC features, emphasizing the synergistic effect of BRAFV600E and TERTC228T; however, their collaborative role on PTC outcome was not fully demonstrated. The differentially expressed miRNAs targeting the BRAF and/or HLA-G genes may explain their increased expression in the tumor milieu.
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Affiliation(s)
- Bruna C. Bertol
- Postgraduate Program of Basic and Applied Immunology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, Brazil
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON M5G 2M9, Canada
| | - Juliana D. Massaro
- Division of Clinical Immunology, Department of Medicine, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, Brazil; (J.D.M.); (M.C.e.S.); (C.V.A.C.)
| | - Guilherme Debortoli
- Department of Anthropology, University of Toronto, Mississauga, ON L5L 1C6, Canada;
| | - André L. P. Santos
- Department of Medical Imaging, Hematology, and Clinical Oncology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, Brazil; (A.L.P.S.); (R.T.C.)
| | - Jéssica N. G. de Araújo
- Department of Clinical Analysis and Toxicology, Federal University of Rio Grande do Norte, Natal 59012-570, Brazil; (J.N.G.d.A.); (V.N.S.)
| | - Tatiana M. V. Giorgenon
- Division of Endocrinology and Metabolism, Department of Medicine, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, Brazil; (T.M.V.G.); (N.L.d.F.-F.); (L.M.Z.M.)
| | - Matheus Costa e Silva
- Division of Clinical Immunology, Department of Medicine, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, Brazil; (J.D.M.); (M.C.e.S.); (C.V.A.C.)
| | - Nathalie L. de Figueiredo-Feitosa
- Division of Endocrinology and Metabolism, Department of Medicine, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, Brazil; (T.M.V.G.); (N.L.d.F.-F.); (L.M.Z.M.)
| | - Cristhianna V. A. Collares
- Division of Clinical Immunology, Department of Medicine, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, Brazil; (J.D.M.); (M.C.e.S.); (C.V.A.C.)
| | - Luiz Carlos C. de Freitas
- Department of Ophthalmology, Otorhinolaryngology and Head and Neck Surgery, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, Brazil;
| | - Edson G. Soares
- Department of Pathology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, Brazil; (E.G.S.); (L.N.)
| | - Luciano Neder
- Department of Pathology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, Brazil; (E.G.S.); (L.N.)
| | - Vivian N. Silbiger
- Department of Clinical Analysis and Toxicology, Federal University of Rio Grande do Norte, Natal 59012-570, Brazil; (J.N.G.d.A.); (V.N.S.)
| | - Rodrigo T. Calado
- Department of Medical Imaging, Hematology, and Clinical Oncology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, Brazil; (A.L.P.S.); (R.T.C.)
| | - Léa M. Z. Maciel
- Division of Endocrinology and Metabolism, Department of Medicine, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, Brazil; (T.M.V.G.); (N.L.d.F.-F.); (L.M.Z.M.)
| | - Eduardo A. Donadi
- Postgraduate Program of Basic and Applied Immunology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, Brazil
- Division of Clinical Immunology, Department of Medicine, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, Brazil; (J.D.M.); (M.C.e.S.); (C.V.A.C.)
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Marques RF, Moreno DA, da Silva L, Leal LF, de Paula FE, Santana I, Teixeira G, Saggioro F, Neder L, Junior CA, Mançano B, Reis RM. Digital expression profile of immune checkpoint genes in medulloblastomas identifies CD24 and CD276 as putative immunotherapy targets. Front Immunol 2023; 14:1062856. [PMID: 36825029 PMCID: PMC9941636 DOI: 10.3389/fimmu.2023.1062856] [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: 10/06/2022] [Accepted: 01/24/2023] [Indexed: 02/10/2023] Open
Abstract
Introduction Medulloblastoma is the most common and lethal pediatric malignant brain tumor. It comprises four main molecular subgroups: WNT-activated, SHH-activated, Group 3, and Group 4. Medulloblastoma treatment is surgical resection, craniospinal radiation, and chemotherapy. However, many patients do not respond to therapy, and most suffer severe side effects. Cancer immunotherapy targeting immune checkpoints (IC) (PD-1, PD-L1, and CTLA4) has been getting disappointing outcomes in brain tumors. Nevertheless, other less explored immune checkpoints may be promising candidates for medulloblastoma therapy. Objectives In the present study, we aimed to characterize the expression profile of 19 immune checkpoints in medulloblastoma. Methods We analyzed 88 formalin-fixed paraffin-embedded medulloblastomas previously classified for each molecular subgroup and three non-tumoral brain tissue. mRNA levels of 19 immune checkpoint-related genes were quantified using the nCounter (PanCancer Immune Profiling Panel) assay. Further in silico analysis was performed in two larger public microarray datasets, one of which enabled comparisons between tumoral and non-tumoral tissues. Immunohistochemistry of PD-L1 was performed in a subset of cases. Microsatellite instability was also molecularly analyzed. Results We observed an absence of expression of the canonic ICs, namely PDCD1 (PD-1), CD274 (PD-L1), and CTLA4, as well as CD80, CD86, BTLA, IDO1, CD48, TNFSF14, CD160, CEACAM1, and CD244. PD-L1 protein expression was also practically absent. We found higher mRNA levels of CD24, CD47, CD276 (B7-H3), and PVR, and lower mRNA levels of HAVCR2, LAG3, and TIGIT genes, with significant differences across the four molecular subgroups. Compared to the non-tumor tissues, the expression levels of CD276 in all subgroups and CD24 in SHH, Group 3, and Group 4 subgroups are significantly higher. The in silico analysis confirmed the expression profile found in the Brazilian cohort, including the lower/absent expression of the canonic ICs. Moreover, it confirmed the overexpression of CD24 and CD276 in medulloblastomas compared with the non-tumor tissue. Additionally, CD276 and CD24 high levels were associated with worse survival. Conclusion These results highlight the low or absence of mRNA levels of the canonic targetable ICs in medulloblastomas. Importantly, the analysis revealed overexpression of CD24 and CD276, which can constitute prognostic biomarkers and attractive immunotherapy targets for medulloblastomas.
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Affiliation(s)
- Rui Ferreira Marques
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Braga, Portugal.,ICVS/3B's -PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | | | - Luciane da Silva
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, Brazil
| | - Leticia Ferro Leal
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, Brazil.,Faculty of Health Sciences of Barretos Dr. Paulo Prata (FACISB), School of Medicine, Barretos, Brazil
| | | | - Iara Santana
- Department of Pathology, Barretos Cancer Hospital, Barretos, Brazil
| | - Gustavo Teixeira
- Department of Pathology, Barretos Cancer Hospital, Barretos, Brazil
| | - Fabiano Saggioro
- Department of Pathology and Forensic Medicine, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Luciano Neder
- Department of Pathology and Forensic Medicine, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | | | - Bruna Mançano
- Barretos Children's Cancer Hospital, Barretos, Brazil
| | - Rui Manuel Reis
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Braga, Portugal.,ICVS/3B's -PT Government Associate Laboratory, Braga, Guimarães, Portugal.,Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, Brazil.,Laboratory of Molecular Diagnostic, Barretos Cancer Hospital, Barretos, Brazil
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5
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Crunfli F, Carregari VC, Veras FP, Silva LS, Nogueira MH, Antunes ASLM, Vendramini PH, Valença AGF, Brandão-Teles C, Zuccoli GDS, Reis-de-Oliveira G, Silva-Costa LC, Saia-Cereda VM, Smith BJ, Codo AC, de Souza GF, Muraro SP, Parise PL, Toledo-Teixeira DA, Santos de Castro ÍM, Melo BM, Almeida GM, Firmino EMS, Paiva IM, Silva BMS, Guimarães RM, Mendes ND, Ludwig RL, Ruiz GP, Knittel TL, Davanzo GG, Gerhardt JA, Rodrigues PB, Forato J, Amorim MR, Brunetti NS, Martini MC, Benatti MN, Batah SS, Siyuan L, João RB, Aventurato ÍK, Rabelo de Brito M, Mendes MJ, da Costa BA, Alvim MKM, da Silva Júnior JR, Damião LL, de Sousa IMP, da Rocha ED, Gonçalves SM, Lopes da Silva LH, Bettini V, Campos BM, Ludwig G, Tavares LA, Pontelli MC, Viana RMM, Martins RB, Vieira AS, Alves-Filho JC, Arruda E, Podolsky-Gondim GG, Santos MV, Neder L, Damasio A, Rehen S, Vinolo MAR, Munhoz CD, Louzada-Junior P, Oliveira RD, Cunha FQ, Nakaya HI, Mauad T, Duarte-Neto AN, Ferraz da Silva LF, Dolhnikoff M, Saldiva PHN, Farias AS, Cendes F, Moraes-Vieira PMM, Fabro AT, Sebollela A, Proença-Modena JL, Yasuda CL, Mori MA, Cunha TM, Martins-de-Souza D. Morphological, cellular, and molecular basis of brain infection in COVID-19 patients. Proc Natl Acad Sci U S A 2022. [DOI: 10.1073/pnas.2200960119 1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
Abstract
Although increasing evidence confirms neuropsychiatric manifestations associated mainly with severe COVID-19 infection, long-term neuropsychiatric dysfunction (recently characterized as part of “long COVID-19” syndrome) has been frequently observed after mild infection. We show the spectrum of cerebral impact of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection, ranging from long-term alterations in mildly infected individuals (orbitofrontal cortical atrophy, neurocognitive impairment, excessive fatigue and anxiety symptoms) to severe acute damage confirmed in brain tissue samples extracted from the orbitofrontal region (via endonasal transethmoidal access) from individuals who died of COVID-19. In an independent cohort of 26 individuals who died of COVID-19, we used histopathological signs of brain damage as a guide for possible SARS-CoV-2 brain infection and found that among the 5 individuals who exhibited those signs, all of them had genetic material of the virus in the brain. Brain tissue samples from these five patients also exhibited foci of SARS-CoV-2 infection and replication, particularly in astrocytes. Supporting the hypothesis of astrocyte infection, neural stem cell–derived human astrocytes in vitro are susceptible to SARS-CoV-2 infection through a noncanonical mechanism that involves spike–NRP1 interaction. SARS-CoV-2–infected astrocytes manifested changes in energy metabolism and in key proteins and metabolites used to fuel neurons, as well as in the biogenesis of neurotransmitters. Moreover, human astrocyte infection elicits a secretory phenotype that reduces neuronal viability. Our data support the model in which SARS-CoV-2 reaches the brain, infects astrocytes, and consequently, leads to neuronal death or dysfunction. These deregulated processes could contribute to the structural and functional alterations seen in the brains of COVID-19 patients.
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Affiliation(s)
- Fernanda Crunfli
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, 13083862, Brazil
| | - Victor C. Carregari
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, 13083862, Brazil
| | - Flavio P. Veras
- Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, 14049900, Brazil
| | - Lucas S. Silva
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, 13083862, Brazil
| | - Mateus Henrique Nogueira
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, 13083862, Brazil
| | | | - Pedro Henrique Vendramini
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, 13083862, Brazil
| | | | - Caroline Brandão-Teles
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, 13083862, Brazil
| | - Giuliana da Silva Zuccoli
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, 13083862, Brazil
| | - Guilherme Reis-de-Oliveira
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, 13083862, Brazil
| | - Lícia C. Silva-Costa
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, 13083862, Brazil
| | - Verônica Monteiro Saia-Cereda
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, 13083862, Brazil
| | - Bradley J. Smith
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, 13083862, Brazil
| | - Ana Campos Codo
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, 13083862, Brazil
| | - Gabriela F de Souza
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, 13083862, Brazil
| | - Stéfanie P. Muraro
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, 13083862, Brazil
| | - Pierina Lorencini Parise
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, 13083862, Brazil
| | - Daniel A. Toledo-Teixeira
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, 13083862, Brazil
| | | | - Bruno Marcel Melo
- Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, 14049900, Brazil
| | - Glaucia M. Almeida
- Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, 14049900, Brazil
| | | | - Isadora Marques Paiva
- Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, 14049900, Brazil
| | | | - Rafaela Mano Guimarães
- Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, 14049900, Brazil
| | - Niele D. Mendes
- Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, 14049900, Brazil
| | - Raíssa L. Ludwig
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, 13083862, Brazil
| | - Gabriel P. Ruiz
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, 13083862, Brazil
| | - Thiago L. Knittel
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, 13083862, Brazil
| | - Gustavo G. Davanzo
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, 13083862, Brazil
| | - Jaqueline Aline Gerhardt
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, 13083862, Brazil
| | - Patrícia Brito Rodrigues
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, 13083862, Brazil
| | - Julia Forato
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, 13083862, Brazil
| | - Mariene Ribeiro Amorim
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, 13083862, Brazil
| | - Natália S. Brunetti
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, 13083862, Brazil
| | - Matheus Cavalheiro Martini
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, 13083862, Brazil
| | - Maíra Nilson Benatti
- Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, 14049900, Brazil
| | - Sabrina S. Batah
- Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, 14049900, Brazil
| | - Li Siyuan
- Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, 14049900, Brazil
| | - Rafael B. João
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, 13083862, Brazil
| | - Ítalo K. Aventurato
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, 13083862, Brazil
| | - Mariana Rabelo de Brito
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, 13083862, Brazil
| | - Maria J. Mendes
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, 13083862, Brazil
| | - Beatriz A. da Costa
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, 13083862, Brazil
| | - Marina K. M. Alvim
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, 13083862, Brazil
| | - José Roberto da Silva Júnior
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, 13083862, Brazil
| | - Lívia L. Damião
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, 13083862, Brazil
| | - Iêda Maria P. de Sousa
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, 13083862, Brazil
| | - Elessandra D. da Rocha
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, 13083862, Brazil
| | - Solange M. Gonçalves
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, 13083862, Brazil
| | - Luiz H. Lopes da Silva
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, 13083862, Brazil
| | - Vanessa Bettini
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, 13083862, Brazil
| | - Brunno M. Campos
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, 13083862, Brazil
| | - Guilherme Ludwig
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, 13083862, Brazil
| | - Lucas Alves Tavares
- Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, 14049900, Brazil
| | | | | | - Ronaldo B. Martins
- Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, 14049900, Brazil
| | - Andre Schwambach Vieira
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, 13083862, Brazil
| | | | - Eurico Arruda
- Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, 14049900, Brazil
| | | | - Marcelo Volpon Santos
- Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, 14049900, Brazil
| | - Luciano Neder
- Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, 14049900, Brazil
| | - André Damasio
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, 13083862, Brazil
| | - Stevens Rehen
- D'Or Institute for Research and Education, 04502001, Brazil
- Institute of Biomedical Science, Federal University of Rio de Janeiro, Rio de Janeiro, 21941590, Brazil
| | - Marco Aurélio Ramirez Vinolo
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, 13083862, Brazil
| | | | - Paulo Louzada-Junior
- Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, 14049900, Brazil
| | - Renê Donizeti Oliveira
- Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, 14049900, Brazil
| | - Fernando Q. Cunha
- Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, 14049900, Brazil
| | | | - Thais Mauad
- University of São Paulo, São Paulo, 05508-220, Brazil
| | | | | | | | | | - Alessandro S. Farias
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, 13083862, Brazil
| | - Fernando Cendes
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, 13083862, Brazil
| | - Pedro Manoel M. Moraes-Vieira
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, 13083862, Brazil
| | - Alexandre T. Fabro
- Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, 14049900, Brazil
| | - Adriano Sebollela
- Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, 14049900, Brazil
| | - José L. Proença-Modena
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, 13083862, Brazil
| | - Clarissa L. Yasuda
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, 13083862, Brazil
| | - Marcelo A. Mori
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, 13083862, Brazil
| | - Thiago M. Cunha
- Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, 14049900, Brazil
| | - Daniel Martins-de-Souza
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, 13083862, Brazil
- D'Or Institute for Research and Education, 04502001, Brazil
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6
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Veronez LC, Fedatto PF, Correa CAP, Lira RCP, Baroni M, da Silva KR, Santos P, Antonio DSM, Queiroz RDPS, Antonini SRR, Tucci S, Neder L, Yunes JA, Brandalise SR, Panepucci RA, Tone LG, Scrideli CA. MicroRNA expression profile predicts prognosis of pediatric adrenocortical tumors. Pediatr Blood Cancer 2022; 69:e29553. [PMID: 34971073 DOI: 10.1002/pbc.29553] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 12/01/2021] [Accepted: 12/13/2021] [Indexed: 12/12/2022]
Abstract
Pediatric adrenocortical tumors (ACT) are rare aggressive neoplasms with heterogeneous prognosis. Despite extensive efforts, identifying reliable prognostic factors for pediatric patients with ACT remains a challenge. MicroRNA (miRNA) signatures have been associated with cancer diagnosis, treatment response, and prognosis of several types of cancer. However, the role of miRNAs has been poorly explored in pediatric ACT. In this study, we performed miRNA microarray profiling on a cohort of 37 pediatric ACT and nine nonneoplastic adrenal (NNA) samples and evaluated the prognostic significance of abnormally expressed miRNAs using Kaplan-Meier plots, log-rank test, and Cox regression analysis. We identified a total of 98 abnormally expressed miRNAs; their expression profile discriminated ACT from NNAs. Among the 98 deregulated miRNAs, 17 presented significant associations with patients' survival. In addition, higher expression levels of hsa-miR-630, -139-3p, -125a-3p, -574-5p, -596, -564, -1321, and -423-5p and lower expression levels of hsa-miR-377-3p, -126-3p, -410, -136-3p, -29b-3p, -29a-3p, -337-5p, -143-3p, and 140-5p were significantly associated with poor prognosis, tumor relapse, and/or death. Importantly, the expression profile of these 17 miRNAs stratified patients into two groups of ACTs with different clinical outcomes. Although some individual miRNAs exhibit potential prognostic values in ACTs, only the 17 miRNA-based expression clustering was considered an independent prognostic factor for 5-year event-free survival (EFS) compared to other clinicopathological features. In conclusion, our study reports for the first time associations between miRNA profiles and childhood ACT prognosis, providing evidence that miRNAs could be useful biomarkers to discriminate patients with favorable and unfavorable clinical outcomes.
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Affiliation(s)
- Luciana Chain Veronez
- Department of Pediatrics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Paola Fernanda Fedatto
- Department of Pediatrics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | | | - Régia Caroline Peixoto Lira
- Department of Pediatrics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil.,Division of General Pathology, Federal University of Triângulo Mineiro, Campus I, Uberaba, Minas Gerais, Brazil
| | - Mirella Baroni
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Keteryne Rodrigues da Silva
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Paula Santos
- Department of Psychology, Ribeirão Preto Faculty of Philosophy, Sciences and Letters, Ribeirão Preto, São Paulo, Brazil
| | | | | | | | - Silvio Tucci
- Department of Surgery, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Luciano Neder
- Department of Pathology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | | | | | | | - Luiz Gonzaga Tone
- Department of Pediatrics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil.,Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Carlos Alberto Scrideli
- Department of Pediatrics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil.,Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
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7
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da Costa BHB, Becker AP, Neder L, Gonçalves PG, de Oliveira C, Polverini AD, Clara CA, Teixeira GR, Reis RM, Bidinotto LT. EGFL7 expression profile in IDH-wildtype glioblastomas is associated with poor patient outcome. J Pathol Transl Med 2022; 56:205-211. [PMID: 35698739 PMCID: PMC9288890 DOI: 10.4132/jptm.2022.04.22] [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: 01/28/2022] [Accepted: 04/22/2022] [Indexed: 11/17/2022] Open
Abstract
Background Despite the advances in glioblastoma (GBM) treatment, the average life span of patients is 14 months. Therefore, it is urgent to identity biomarkers of prognosis, treatment response, or development of novel treatment strategies. We previously described the association of high epidermal growth factor-like domain multiple 7 (EGFL7) expression and unfavorable outcome of pilocytic astrocytoma patients. The present study aims to analyze the prognostic potential of EGFL7 in GBM isocitrate dehydrogenase (IDH)-wildtype, using immunohistochemistry and in silico approaches. Materials and Methods Spearman's correlation analysis of The Cancer Genome Atlas RNA sequencing data was performed. The genes strongly correlated to EGFL7 expression were submitted to enrichment gene ontology and Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis. Additionally, EGFL7 expression was associated with patient overall survival. The expression of EGFL7 was analyzed through immunohistochemistry in 74 GBM IDH-wildtype patients' samples, and was associated with clinicopathological data and overall survival. Results In silico analysis found 78 genes strongly correlated to EGFL7 expression. These genes were enriched in 40 biological processes and eight KEGG pathways, including angiogenesis/vasculogenesis, cell adhesion, and phosphoinositide 3-kinase-Akt, Notch, and Rap1 signaling pathways. The immunostaining showed high EGFL7 expression in 39 cases (52.7%). High immunolabelling was significantly associated with low Karnofsky Performance Status and poor overall survival. Cox analysis showed that GBMs IDH-wildtype with high EGFL7 expression presented a higher risk of death compared to low expression (hazard ratio, 1.645; 95% confidence interval, 1.021 to 2.650; p = .041). Conclusion This study gives insights regarding the genes that are correlated with EGFL7, as well as biological processes and signaling pathways, which should be further investigated in order to elucidate their role in glioblastoma biology.
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Affiliation(s)
- Bruno Henrique Bressan da Costa
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, São Paulo, Brazil.,Barretos School of Health Sciences, Dr. Paulo Prata - FACISB, Barretos, São Paulo, Brazil
| | - Aline Paixão Becker
- The Ohio State University, Department of Radiation Oncology, Columbus, OH, USA
| | - Luciano Neder
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, São Paulo, Brazil.,Department of Pathology, School of Medicine of Ribeirao Preto, University of Sao Paulo, Ribeirão Preto, Sao Paulo, Brazil
| | - Paola Gyuliane Gonçalves
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, São Paulo, Brazil.,UNESP - Univ. Estadual Paulista, School of Medicine, Department of Pathology, Botucatu, São Paulo, Brazil
| | - Cristiane de Oliveira
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, São Paulo, Brazil.,UNESP - Univ. Estadual Paulista, School of Medicine, Department of Pathology, Botucatu, São Paulo, Brazil
| | - Allan Dias Polverini
- Department of Neurosurgery, Barretos Cancer Hospital, Barretos, São Paulo, Brazil
| | - Carlos Afonso Clara
- Department of Neurosurgery, Barretos Cancer Hospital, Barretos, São Paulo, Brazil
| | - Gustavo Ramos Teixeira
- Barretos School of Health Sciences, Dr. Paulo Prata - FACISB, Barretos, São Paulo, Brazil.,Department of Pathology, Barretos Cancer Hospital, Barretos, São Paulo, Brazil
| | - Rui Manuel Reis
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, São Paulo, Brazil.,Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Lucas Tadeu Bidinotto
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, São Paulo, Brazil.,Barretos School of Health Sciences, Dr. Paulo Prata - FACISB, Barretos, São Paulo, Brazil.,UNESP - Univ. Estadual Paulista, School of Medicine, Department of Pathology, Botucatu, São Paulo, Brazil
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8
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Montella M, Sabetta R, Ronchi A, De Sio M, Arcaniolo D, De Vita F, Tirino G, Caputo A, D'Antonio A, Fiorentino F, Facchini G, Lauro GD, Perdonà S, Ventriglia J, Aquino G, Feroce F, Borges Dos Reis R, Neder L, Brunelli M, Franco R, Zito Marino F. Immunotherapy in Penile Squamous Cell Carcinoma: Present or Future? Multi-Target Analysis of Programmed Cell Death Ligand 1 Expression and Microsatellite Instability. Front Med (Lausanne) 2022; 9:874213. [PMID: 35592855 PMCID: PMC9113025 DOI: 10.3389/fmed.2022.874213] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [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: 02/11/2022] [Accepted: 03/04/2022] [Indexed: 11/13/2022] Open
Abstract
Background Penile cancer (PC) is an extremely rare malignancy, and the patients at advanced stages have currently limited treatment options with disappointing results. Immune checkpoint inhibitors anti-programmed cell death 1 (PD-1)/programmed cell death ligand 1 (PD-L1) are currently changing the treatment of several tumors. Furthermore, the microsatellite instability (MSI) and the deficient mismatch repair system (dMMR) proteins represent predictive biomarkers for response to immune checkpoint therapy. Until present, few data have been reported related to PD-L1 expression and MSI in PC. The main aim of our study was the evaluation of PD-L1 expression in tumor cells (TCs) and tumor-infiltrating lymphocytes (TILs) in immune cells and the analysis of dMMR/MSI status in a large series of PCs. Methods A series of 72 PC, including 65 usual squamous cell carcinoma (USCC), 1 verrucous, 4 basaloid, 1 warty, and 1 mixed (warty-basaloid), was collected. Immunohistochemistry (IHC) was performed to assess PD-L1 expression using two different anti-PD-L1 antibodies (clone SP263 and SP142 Ventana) and MMR proteins expression using anti-MLH1, anti-PMS2, anti-MSH2, and anti-MSH6 antibodies. PCR analysis was performed for the detection of MSI status. Results Of the 72 PC cases analyzed by IHC, 45 (62.5%) cases were TC positive and 57 (79%) cases were combined positive score (CPS) using PDL1 SP263. In our cohort, TILs were present in 62 out of 72 cases (86.1%), 47 (75.8%) out of 62 cases showed positivity to PDL1 clone SP142. In our series, 59 cases (82%) had pMMR, 12 cases (16.7%) had lo-paMMR, and only 1 case (1.3%) had MMR. PCR results showed that only one case lo-paMMR was MSI-H, and the case dMMR by IHC not confirmed MSI status. Conclusion Our findings showed that PD-L1 expression and MSI status represent frequent biological events in this tumor suggesting a rationale for a new frontier in the treatment of patients with PC based on the immune checkpoint inhibitors.
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Affiliation(s)
- Marco Montella
- Pathology Unit, Department of Mental Health, Physic and Preventive Medicine University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Rosalaura Sabetta
- Pathology Unit, Department of Mental Health, Physic and Preventive Medicine University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Andrea Ronchi
- Pathology Unit, Department of Mental Health, Physic and Preventive Medicine University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Marco De Sio
- Urology Unit, Department of Woman Child and of General and Specialist Surgery, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Davide Arcaniolo
- Urology Unit, Department of Woman Child and of General and Specialist Surgery, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Ferdinando De Vita
- Oncology Unit, Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Giuseppe Tirino
- Oncology Unit, Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Alessandro Caputo
- Department of Medicine and Surgery, University Hospital "San Giovanni di Dio e Ruggi D'Aragona", University of Salerno, Salerno, Italy
| | - Antonio D'Antonio
- Department of Pathology, University Hospital "San Giovanni di Dio e Ruggi D'Aragona", Salerno, Italy
| | | | - Gaetano Facchini
- Medical Oncology Unit, S.M. delle Grazie Hospital, Pozzuoli, Italy
| | | | - Sisto Perdonà
- Department of Urogynecology, National Cancer Institute, Pascale Foundation (Scientific Institute for Research and Healthcare), Naples, Italy
| | - Jole Ventriglia
- Department of Urogynecology, National Cancer Institute, Pascale Foundation (Scientific Institute for Research and Healthcare), Naples, Italy
| | - Gabriella Aquino
- Pathology Unit, Istituto Nazionale Tumori Fondazione G. Pascale IRCCS, Naples, Italy
| | - Florinda Feroce
- Pathology Unit, Istituto Nazionale Tumori Fondazione G. Pascale IRCCS, Naples, Italy
| | - Rodolfo Borges Dos Reis
- Urology Division, Department of Surgery and Anatomy, Ribeirão Preto School Medicine, University of São Paulo, Ribeirão Preto, Brazil
| | - Luciano Neder
- Department of Pathology and Forensic Medicine, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Matteo Brunelli
- Department of Pathology, University of Verona, Verona, Italy
| | - Renato Franco
- Pathology Unit, Department of Mental Health, Physic and Preventive Medicine University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Federica Zito Marino
- Pathology Unit, Department of Mental Health, Physic and Preventive Medicine University of Campania "Luigi Vanvitelli", Naples, Italy
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9
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Almeida GM, Souza JP, Mendes ND, Pontelli MC, Pinheiro NR, Nogueira GO, Cardoso RS, Paiva IM, Ferrari GD, Veras FP, Cunha FQ, Horta-Junior JAC, Alberici LC, Cunha TM, Podolsky-Gondim GG, Neder L, Arruda E, Sebollela A. Neural Infection by Oropouche Virus in Adult Human Brain Slices Induces an Inflammatory and Toxic Response. Front Neurosci 2021; 15:674576. [PMID: 34887719 PMCID: PMC8651276 DOI: 10.3389/fnins.2021.674576] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 10/28/2021] [Indexed: 12/22/2022] Open
Abstract
Oropouche virus (OROV) is an emerging arbovirus in South and Central Americas with high spreading potential. OROV infection has been associated with neurological complications and OROV genomic RNA has been detected in cerebrospinal fluid from patients, suggesting its neuroinvasive potential. Motivated by these findings, neurotropism and neuropathogenesis of OROV have been investigated in vivo in murine models, which do not fully recapitulate the complexity of the human brain. Here we have used slice cultures from adult human brains to investigate whether OROV is capable of infecting mature human neural cells in a context of preserved neural connections and brain cytoarchitecture. Our results demonstrate that human neural cells can be infected ex vivo by OROV and support the production of infectious viral particles. Moreover, OROV infection led to the release of the pro-inflammatory cytokine tumor necrosis factor-alpha (TNF-α) and diminished cell viability 48 h post-infection, indicating that OROV triggers an inflammatory response and tissue damage. Although OROV-positive neurons were observed, microglia were the most abundant central nervous system (CNS) cell type infected by OROV, suggesting that they play an important role in the response to CNS infection by OROV in the adult human brain. Importantly, we found no OROV-infected astrocytes. To the best of our knowledge, this is the first direct demonstration of OROV infection in human brain cells. Combined with previous data from murine models and case reports of OROV genome detection in cerebrospinal fluid from patients, our data shed light on OROV neuropathogenesis and help raising awareness about acute and possibly chronic consequences of OROV infection in the human brain.
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Affiliation(s)
- Glaucia M. Almeida
- Department of Biochemistry and Immunology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
- Center for Virus Research, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Juliano P. Souza
- Center for Virus Research, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
- Department of Cell and Molecular Biology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Niele D. Mendes
- Department of Biochemistry and Immunology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
- Department of Pathology and Forensic Medicine, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Marjorie C. Pontelli
- Center for Virus Research, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
- Department of Cell and Molecular Biology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Nathalia R. Pinheiro
- Department of Biochemistry and Immunology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Giovanna O. Nogueira
- Department of Biochemistry and Immunology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Ricardo S. Cardoso
- Center for Virus Research, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
- Department of Cell and Molecular Biology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Isadora M. Paiva
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
- Center for Research in Inflammatory Diseases (CRID), Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Gustavo D. Ferrari
- Department of Physics and Chemistry, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Flávio P. Veras
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
- Center for Research in Inflammatory Diseases (CRID), Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Fernando Q. Cunha
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
- Center for Research in Inflammatory Diseases (CRID), Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Jose A. C. Horta-Junior
- Department of Structural and Functional Biology (Anatomy), Institute of Biosciences, São Paulo State University, Botucatu, Brazil
| | - Luciane C. Alberici
- Department of Physics and Chemistry, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Thiago M. Cunha
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
- Center for Research in Inflammatory Diseases (CRID), Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Guilherme G. Podolsky-Gondim
- Division of Neurosurgery, Department of Surgery and Anatomy, Ribeirão Preto Clinics Hospital, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Luciano Neder
- Department of Pathology and Forensic Medicine, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Eurico Arruda
- Center for Virus Research, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
- Department of Cell and Molecular Biology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Adriano Sebollela
- Department of Biochemistry and Immunology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
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10
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Tomaselli PJ, Dos Santos DF, Dos Santos ACJ, Antunes DE, Marques VD, Foss NT, Moreira CL, Nogueira PTB, Nascimento OJM, Neder L, Barreira AA, Frade MA, Goulart IMB, Marques W. Primary neural leprosy: clinical, neurophysiological and pathological presentation and progression. Brain 2021; 145:1499-1506. [PMID: 34664630 DOI: 10.1093/brain/awab396] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [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: 05/04/2021] [Revised: 07/25/2021] [Accepted: 09/26/2021] [Indexed: 11/13/2022] Open
Abstract
Disability in leprosy is a direct consequence of damage to the peripheral nervous system which is usually worse in patients with no skin manifestations, an underdiagnosed subtype of leprosy known as primary neural leprosy. We evaluated clinical, neurophysiological and laboratory findings of 164 patients with definite and probable primary neural leprosy diagnoses. To better understand the disease progression and to improve primary neural leprosy clinical recognition we compared the characteristics of patients with short (≤ 12 months) and long (> 12 months) disease duration. Positive and negative symptoms mediated by small-fibre were frequent at presentation (∼95%), and symptoms tend to manifest first in the upper limbs (∼68%). There is a consistent phenotypic variability between the aforementioned groups. Deep sensory modalities were spared in patients evaluated within the first 12 months of the disease, and were only affected in patients with longer disease duration (∼12%). Deep tendon reflexes abnormalities were most frequent in patients with longer disease duration (p < 0,001), as well as motor deficits (p = 0,002). Damage to large fibres (sensory and motor) is a latter event in primary neural leprosy. Grade-2 disability and nerve thickening was also more frequent in cases with long disease duration (p < 0,001). Primary neural leprosy progress over time and there is a marked difference in clinical phenotype between patients with short and long disease duration. Patients assessed within the first 12 months of symptom onset had a non-length-dependent predominant small-fibre sensory neuropathy, whilst patients with chronic disease presented an asymmetrical all diameter sensory-motor neuropathy and patchily decreased/absent deep tendon reflexes.
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Affiliation(s)
- Pedro J Tomaselli
- Division of Neuromuscular Disorders, Department of Neurology, Ribeirão Preto School of Medicine, University of São Paulo, Ribeirão Preto, 14048-900, Brazil.,International Centre for Genomic Medicine in Neuromuscular Diseases, ICGNMD
| | - Diogo F Dos Santos
- National Reference Centre for Sanitary Dermatology and Leprosy, Clinical Hospital, Federal University of Uberlândia (CREDESH/HC/UFU), Uberlândia, 38400-902, Brazil
| | - André C J Dos Santos
- Division of Neuromuscular Disorders, Department of Neurology, Ribeirão Preto School of Medicine, University of São Paulo, Ribeirão Preto, 14048-900, Brazil
| | - Douglas E Antunes
- National Reference Centre for Sanitary Dermatology and Leprosy, Clinical Hospital, Federal University of Uberlândia (CREDESH/HC/UFU), Uberlândia, 38400-902, Brazil
| | - Vanessa D Marques
- Division of Neuromuscular Disorders, Department of Neurology, Ribeirão Preto School of Medicine, University of São Paulo, Ribeirão Preto, 14048-900, Brazil
| | - Norma T Foss
- Division of Dermatology, Department of Internal Medicine, Ribeirão Preto School of Medicine, University of São Paulo, Ribeirão Preto, 14048-900, Brazil
| | - Carolina L Moreira
- Division of Neuromuscular Disorders, Department of Neurology, Ribeirão Preto School of Medicine, University of São Paulo, Ribeirão Preto, 14048-900, Brazil
| | - Patrícia T B Nogueira
- Division of Neuromuscular Disorders, Department of Neurology, Ribeirão Preto School of Medicine, University of São Paulo, Ribeirão Preto, 14048-900, Brazil
| | - Osvaldo J M Nascimento
- Antonio Pedro University Hospital (HUAP), Fluminense Federal University, Niterói, 24033-900, Brazil
| | - Luciano Neder
- Department of Pathology, Ribeirão Preto School of Medicine, University of São Paulo, Ribeirão Preto, 14048-900, Brazil.,Molecular Oncology Research Center (CPOM), Barretos Cancer Hospital, Barretos, 14784-400, Brazil
| | - Amilton A Barreira
- Division of Neuromuscular Disorders, Department of Neurology, Ribeirão Preto School of Medicine, University of São Paulo, Ribeirão Preto, 14048-900, Brazil
| | - Marco A Frade
- Division of Dermatology, Department of Internal Medicine, Ribeirão Preto School of Medicine, University of São Paulo, Ribeirão Preto, 14048-900, Brazil
| | - Isabela M B Goulart
- National Reference Centre for Sanitary Dermatology and Leprosy, Clinical Hospital, Federal University of Uberlândia (CREDESH/HC/UFU), Uberlândia, 38400-902, Brazil
| | - Wilson Marques
- Division of Neuromuscular Disorders, Department of Neurology, Ribeirão Preto School of Medicine, University of São Paulo, Ribeirão Preto, 14048-900, Brazil.,International Centre for Genomic Medicine in Neuromuscular Diseases, ICGNMD.,National Institute for Science and Technology for Translational Medicine, INCT, Brazil
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11
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Colli BO, Machado HR, Carlotti CG, Assirati JA, Oliveira RSD, Gondim GGP, Santos ACD, Neder L. Epidemiological features of meningiomas: a single Brazilian center's experience with 993 cases. Arq Neuropsiquiatr 2021; 79:705-715. [PMID: 34550193 DOI: 10.1590/0004-282x-anp-2020-0441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 11/04/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Meningiomas are the most frequent primary central nervous system (CNS) tumors. Their geographical and ethnic characteristics need to be known, in order to enable rational treatment. OBJECTIVE To investigate clinical and epidemiological aspects in a series of patients with meningiomas. METHODS Retrospective analysis on the demographic profile, location and histopathology of 993 patients with meningiomas (768 operated and 225 not operated). RESULTS Meningiomas represented 43.8% of the primary CNS tumors; 6.8% were multiple tumors (14.7% with neurofibromatosis 2) and 0.6% were radiation-induced tumors. The mean ages were 53.0 and 63.9 years for operated and non-operated patients and the female/male ratios were 3.2:1 and 6.3:1. Diagnosis was made later among females. The peak incidences were in the 6th and 7th decades respectively for operated and non-operated patients. The incidence was low at early ages and higher among patients aged 70+ years. The meningiomas were intracranial in 96.5% and most were WHO grade I (88.9%) and transitional. In the spinal canal (3.5%), they occurred mainly in the dorsal region (all grade I; mostly transitional). The racial distribution was 1.0% in Asian-Brazilians, 87% in Caucasians and 12% in African-Brazilians. 83.4% and 51.6% of the patients were estimated to be recurrence-free at 10 and 20 years, and the mortality rate was 3%. CONCLUSIONS Most of the demographic data were similar to what has been observed in other western centers. Differences were higher incidence of meningiomas, female and older predominance in non-operated patients, predominance in Caucasian, and higher association with neurofibromatosis 2.
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Affiliation(s)
- Benedicto Oscar Colli
- Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto, Departamento de Cirurgia, Divisão de Neurocirurgia, Ribeirão Preto SP, Brazil
| | - Hélio Rubens Machado
- Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto, Departamento de Cirurgia, Divisão de Neurocirurgia, Ribeirão Preto SP, Brazil
| | - Carlos Gilberto Carlotti
- Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto, Departamento de Cirurgia, Divisão de Neurocirurgia, Ribeirão Preto SP, Brazil
| | - João Alberto Assirati
- Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto, Departamento de Cirurgia, Divisão de Neurocirurgia, Ribeirão Preto SP, Brazil
| | - Ricardo Santos De Oliveira
- Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto, Departamento de Cirurgia, Divisão de Neurocirurgia, Ribeirão Preto SP, Brazil
| | - Guilherme Gozzoli Podolsky Gondim
- Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto, Departamento de Cirurgia, Divisão de Neurocirurgia, Ribeirão Preto SP, Brazil
| | - Antonio Carlos Dos Santos
- Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto, Departamento de Imagem Médica, Hematologia e Oncologia Clínica, Ribeirão Preto SP, Brazil
| | - Luciano Neder
- Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto, Departamento de Patologia, Ribeirão Preto SP, Brazil
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12
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Pongeluppi RI, de Souza SNF, Neder L, Furlanetti L, Colli BO, Ballestero MFM, de Oliveira RS. Adult giant cerebellar cavernous malformations: case report and review of the literature. Br J Neurosurg 2021; 37:1-6. [PMID: 34406083 DOI: 10.1080/02688697.2021.1961685] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 07/23/2021] [Indexed: 10/20/2022]
Abstract
Cavernous malformations are vascular malformations that can occur anywhere in the central nervous system (CNS). Giant cavernous malformations (GCM) are extremely rare in adults, especially in the posterior fossa. Herein, we described a 48-year-old male who presented with vertigo and postural instability for three months. Neuroimaging revealed a 131.15 cm3 heterogeneous midline upper cerebellar lesion. After a suboccipital craniotomy, a gross total resection (GTR) was accomplished. Histopathologic examination revealed a huge cavernous malformation. Only 27 GCM adult cases were reported in the English-based literature. Only two patients had cerebellar lesions and, to the best of our knowledge, this is the first case of cerebellar vermis GCM. We concluded that cerebellar GCM (CGCM) in adults are exceedingly rare and indolent lesions. These lesions can radiologically and clinically mimic neoplastic lesions that have to be considered in the differential diagnosis. GTR is the mainstay of treatment and, whenever possible, should be attempted.
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Affiliation(s)
- Rodrigo Inácio Pongeluppi
- Division of Neurosurgery, Department of Surgery and Anatomy, Ribeirão Preto School of Medicine, University of São Paulo, Ribeirão Preto, Brazil
| | - Stephanie Naomi Funo de Souza
- Division of Neurosurgery, Department of Surgery and Anatomy, Ribeirão Preto School of Medicine, University of São Paulo, Ribeirão Preto, Brazil
| | - Luciano Neder
- Department of Pathology, Ribeirão Preto School of Medicine, University of São Paulo, Ribeirão Preto, Brazil
| | - Luciano Furlanetti
- Division of Neurosurgery, Department of Surgery and Anatomy, Ribeirão Preto School of Medicine, University of São Paulo, Ribeirão Preto, Brazil
| | - Benedicto Oscar Colli
- Division of Neurosurgery, Department of Surgery and Anatomy, Ribeirão Preto School of Medicine, University of São Paulo, Ribeirão Preto, Brazil
| | - Matheus Fernando Manzolli Ballestero
- Division of Neurosurgery, Department of Surgery and Anatomy, Ribeirão Preto School of Medicine, University of São Paulo, Ribeirão Preto, Brazil
- Department of Medicine, Federal University of São Carlos, São Carlos, Brazil
| | - Ricardo Santos de Oliveira
- Division of Neurosurgery, Department of Surgery and Anatomy, Ribeirão Preto School of Medicine, University of São Paulo, Ribeirão Preto, Brazil
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13
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Marino FZ, Sabetta R, Pagliuca F, Brunelli M, Aquino G, Perdonà S, Botti G, Facchini G, Fiorentino F, Di Lauro G, De Sio M, De Vita F, Toni G, Reis RBD, Neder L, Franco R. Correction to: Discrepancy of p16 immunohistochemical expression and HPV RNA in penile cancer. A multiplex in situ hybridization/immunohistochemistry approach study. Infect Agent Cancer 2021; 16:23. [PMID: 33845840 PMCID: PMC8040232 DOI: 10.1186/s13027-021-00363-6] [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] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
An amendment to this paper has been published and can be accessed via the original article.
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Affiliation(s)
- Federica Zito Marino
- Pathology Unit, Department of Mental and Physical Health and Preventive Medicine, University of Campania "L. Vanvitelli", Complesso di Santa Patrizia, Via Luciano Armanni, 5, 80138, Naples, Italy
| | - Rosalaura Sabetta
- Pathology Unit, Department of Mental and Physical Health and Preventive Medicine, University of Campania "L. Vanvitelli", Complesso di Santa Patrizia, Via Luciano Armanni, 5, 80138, Naples, Italy
| | - Francesca Pagliuca
- Pathology Unit, Department of Mental and Physical Health and Preventive Medicine, University of Campania "L. Vanvitelli", Complesso di Santa Patrizia, Via Luciano Armanni, 5, 80138, Naples, Italy
| | - Matteo Brunelli
- Department of Pathology, University of Verona, Verona, Italy
| | - Gabriella Aquino
- Pathology Unit, Istituto Nazionale Tumori, Fondazione G. Pascale, IRCCS, 80131, Naples, Italy
| | - Sisto Perdonà
- Department of Urology, Istituto Nazionale Tumori, Fondazione G. Pascale, IRCCS, 80131, Naples, Italy
| | - Gerardo Botti
- Pathology Unit, Istituto Nazionale Tumori, Fondazione G. Pascale, IRCCS, 80131, Naples, Italy
| | - Gaetano Facchini
- Medical Oncology Unit, S.M. delle Grazie Hospital, Via Domitiana, 80078, Pozzuoli, NA, Italy
| | - Francesco Fiorentino
- Pathology Unit, S.M. delle Grazie Hospital, Via Domitiana, 80078, Pozzuoli, NA, Italy
| | - Giovanni Di Lauro
- Urology Unit, S.M. delle Grazie Hospital, Via Domitiana, 80078, Pozzuoli, NA, Italy
| | - Marco De Sio
- Urology Unit, Department of Woman, Child and General and Specialized Surgery, University of Campania 'Luigi Vanvitelli, 80138, Naples, Italy
| | - Ferdinando De Vita
- Division of Medical Oncology, Department of Precision Medicine, School of Medicine, "Luigi Vanvitelli" University of Campania, Naples, Italy
| | - Giorgio Toni
- Laboratoire Central d'Anatomie pathologique, Hôpital universitaire de Nice, Université Côte d'Azur, 06000, Nice, France
| | - Rodolfo Borges Dos Reis
- Department of Surgery and Anatomy, Urology Division, Ribeirao Preto School Medicine, University of São Paulo, Ribeirao Preto, 14049 900, Brazil
| | - Luciano Neder
- Department of Pathology and Forensic Medicine, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, 14049 900, Brazil.,Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, SP, 14784400, Brazil
| | - Renato Franco
- Pathology Unit, Department of Mental and Physical Health and Preventive Medicine, University of Campania "L. Vanvitelli", Complesso di Santa Patrizia, Via Luciano Armanni, 5, 80138, Naples, Italy.
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14
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Zito Marino F, Sabetta R, Pagliuca F, Brunelli M, Aquino G, Perdonà S, Botti G, Facchini G, Fiorentino F, Di Lauro G, De Sio M, De Vita F, Toni G, Borges Dos Reis R, Neder L, Franco R. Discrepancy of p16 immunohistochemical expression and HPV RNA in penile cancer. A multiplex in situ hybridization/immunohistochemistry approach study. Infect Agent Cancer 2021; 16:22. [PMID: 33789689 PMCID: PMC8011184 DOI: 10.1186/s13027-021-00361-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 01/31/2021] [Accepted: 03/19/2021] [Indexed: 11/30/2022] Open
Abstract
Background The high-risk human papillomavirus (HPV) infection represents one of the main etiologic pathways of penile carcinogenesis in approximately 30–50 % of cases. Several techniques for the detection of HPV are currently available including Polymerase chain reaction-based techniques, DNA and RNA in situ hybridization (ISH), p16 immunohistochemistry (IHC). The multiplex HPV RNA ISH/p16 IHC is a novel technique for the simultaneous detection of HPV E6/E7 transcripts and p16INK4a overexpression on the same slide in a single assay. The main aim of this study was to evaluate the discrepancy of p16 IHC expression relatively to HPV RNA ISH in penile cancer tissue. Methods We collected a series of 60 PCs. HPV has been analysed through the RNA ISH, p16 IHC and the multiplex HPV RNA ISH/p16 IHC. Results The multiplex HPV RNA ISH /p16 IHC results in the series were in complete agreement with the previous results obtained through the classic p16 IHC and HPV RNA scope carried out on two different slides. The multiplex HPV RNA ISH /p16 IHC showed that HPV positivity in our series is more frequently in usual squamous cell carcinoma than in special histotypes (19 out of 60 − 15 %- versus 6 out of 60 − 10 %-), in high-grade than in moderate/low grade carcinomas (6 out of 60 − 10 %- versus 4 out of 60 − 6.7 %-). In addition, our data revealed that in 5 out of 20 cases with p16 high intensity expression is not associated with HPV RNA ISH positivity. Conclusions Our findings emphasize that the use of p16 as a surrogate of HPV positivity was unsuccessful in approximatively 8 % of cases analysed in our series. Indeed, p16 IHC showed a sensitivity of 100 % and a specificity of 71 %, with a positive predictive value (PPV) of 54 % and a negative predictive value of 100 %; when considering high intensity, p16 IHC showed a sensitivity of 100 %, a specificity of 89 %, with a PPV of 75 % and NPV of 100 %. Since HPV positivity could represent a relevant prognostic and predictive value, the correct characterization offered by this approach appears to be of paramount importance.
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Affiliation(s)
- Federica Zito Marino
- Pathology Unit, Department of Mental and Physical Health and Preventive Medicine, University of Campania "L. Vanvitelli", Complesso di Santa Patrizia, Via Luciano Armanni, 5, 80138, Naples, Italy
| | - Rosalaura Sabetta
- Pathology Unit, Department of Mental and Physical Health and Preventive Medicine, University of Campania "L. Vanvitelli", Complesso di Santa Patrizia, Via Luciano Armanni, 5, 80138, Naples, Italy
| | - Francesca Pagliuca
- Pathology Unit, Department of Mental and Physical Health and Preventive Medicine, University of Campania "L. Vanvitelli", Complesso di Santa Patrizia, Via Luciano Armanni, 5, 80138, Naples, Italy
| | - Matteo Brunelli
- Department of Pathology, University of Verona, Verona, Italy
| | - Gabriella Aquino
- Pathology Unit, Istituto Nazionale Tumori, Fondazione G. Pascale, IRCCS, 80131, Naples, Italy
| | - Sisto Perdonà
- Department of Urology, Istituto Nazionale Tumori, Fondazione G. Pascale, IRCCS, 80131, Naples, Italy
| | - Gerardo Botti
- Pathology Unit, Istituto Nazionale Tumori, Fondazione G. Pascale, IRCCS, 80131, Naples, Italy
| | - Gaetano Facchini
- Medical Oncology Unit, S.M. delle Grazie Hospital, Via Domitiana, 80078, Pozzuoli, NA, Italy
| | - Francesco Fiorentino
- Pathology Unit, S.M. delle Grazie Hospital, Via Domitiana, 80078, Pozzuoli, NA, Italy
| | - Giovanni Di Lauro
- Urology Unit, S.M. delle Grazie Hospital, Via Domitiana, 80078, Pozzuoli (NA), Italy
| | - Marco De Sio
- Urology Unit, Department of Woman, Child and General and Specialized Surgery, University of Campania 'Luigi Vanvitelli, 80138, Naples, Italy
| | - Ferdinando De Vita
- Division of Medical Oncology, Department of Precision Medicine, School of Medicine, "Luigi Vanvitelli" University of Campania, Naples, Italy
| | - Giorgio Toni
- Laboratoire Central d'Anatomie pathologique, Hôpital universitaire de Nice, Université Côte d'Azur, 06000, Nice, France
| | - Rodolfo Borges Dos Reis
- Department of Surgery and Anatomy, Urology Division, Ribeirao Preto School Medicine, University of São Paulo, 14049 900, Ribeirao Preto, Brazil
| | - Luciano Neder
- Department of Pathology and Forensic Medicine, Ribeirão Preto Medical School, University of São Paulo, 14049 900, Ribeirão Preto, SP, Brazil.,Molecular Oncology Research Center, Barretos Cancer Hospital, 14784400, Barretos, SP, Brazil
| | - Renato Franco
- Pathology Unit, Department of Mental and Physical Health and Preventive Medicine, University of Campania "L. Vanvitelli", Complesso di Santa Patrizia, Via Luciano Armanni, 5, 80138, Naples, Italy.
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15
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Chodraui FI, Garcia CAB, Mendes ND, Santos MV, Beggiora PS, Silva SC, Teixeira TL, da Silva Lopes L, Saggioro FP, Neder L, Machado HR. Phosphorylation of S6 Protein as a Potential Biomarker in Surgically Treated Refractory Epilepsy. Dev Neurosci 2021; 42:230-236. [PMID: 33706310 DOI: 10.1159/000514006] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Accepted: 12/18/2020] [Indexed: 11/19/2022] Open
Abstract
The tuberous sclerosis complex (TSC), focal cortical dysplasia IIB (FCD IIB), and hemimegalencephaly (HME) exhibit similar molecular features that are dependent on the hyperactivation of the mTOR pathway. They are all associated with refractory epilepsy and the need for surgical resection with varying outcomes. The phosphorylated protein S6 (pS6) is a downstream target of mTOR, whose increased expression might indicate mTOR hyperactivation, but which is also present when there is no alteration in the pathway (such as in FCD type I). We have performed immunohistochemical marking and quantification of pS6 in resected brain specimens of 26 patients clinically and histologically diagnosed with TSC, FCD IIB, or HME and compared this data to a control group of 25 patients, to measure the extent of pS6 positivity and its correlation with clinical aspects. Our results suggest that pS6 may serve as a reliable biomarker in epilepsy and that a greater percentage of pS6 marking can relate to more severe forms of mTOR-dependent brain anomalies.
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Affiliation(s)
- Felipe I Chodraui
- Department of Surgery and Anatomy, Ribeirão Preto Medical School, University of São Paulo (USP), Ribeirão Preto, Brazil
| | - Camila Araújo B Garcia
- Department of Surgery and Anatomy, Ribeirão Preto Medical School, University of São Paulo (USP), Ribeirão Preto, Brazil
| | - Niele D Mendes
- Department of Surgery and Anatomy, Ribeirão Preto Medical School, University of São Paulo (USP), Ribeirão Preto, Brazil
| | - Marcelo V Santos
- Department of Surgery and Anatomy, Ribeirão Preto Medical School, University of São Paulo (USP), Ribeirão Preto, Brazil,
| | - Pâmela S Beggiora
- Department of Surgery and Anatomy, Ribeirão Preto Medical School, University of São Paulo (USP), Ribeirão Preto, Brazil
| | - Stephanya C Silva
- Department of Surgery and Anatomy, Ribeirão Preto Medical School, University of São Paulo (USP), Ribeirão Preto, Brazil
| | - Thiago L Teixeira
- Department of Surgery and Anatomy, Ribeirão Preto Medical School, University of São Paulo (USP), Ribeirão Preto, Brazil
| | - Luiza da Silva Lopes
- Department of Surgery and Anatomy, Ribeirão Preto Medical School, University of São Paulo (USP), Ribeirão Preto, Brazil
| | - Fabiano P Saggioro
- Department of Pathology, Ribeirão Preto School of Medicine, University of São Paulo (USP), Ribeirão Preto, Brazil
| | - Luciano Neder
- Department of Pathology, Ribeirão Preto School of Medicine, University of São Paulo (USP), Ribeirão Preto, Brazil
| | - Hélio R Machado
- Department of Surgery and Anatomy, Ribeirão Preto Medical School, University of São Paulo (USP), Ribeirão Preto, Brazil
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16
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Fernandes FG, Silveira HCS, Júnior JNA, da Silveira RA, Zucca LE, Cárcano FM, Sanches AON, Neder L, Scapulatempo-Neto C, Serrano SV, Jonasch E, Reis RM, Evangelista AF. Somatic Copy Number Alterations and Associated Genes in Clear-Cell Renal-Cell Carcinoma in Brazilian Patients. Int J Mol Sci 2021; 22:2265. [PMID: 33668731 PMCID: PMC7956176 DOI: 10.3390/ijms22052265] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [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: 10/23/2020] [Revised: 01/13/2021] [Accepted: 01/22/2021] [Indexed: 12/24/2022] Open
Abstract
Somatic copy number aberrations (CNAs) have been associated with clear-cell renal carcinoma (ccRCC) pathogenesis and are a potential source of new diagnostic, prognostic and therapeutic biomarkers. Recurrent CNAs include loss of chromosome arms 3p, 14q, 9p, and gains of 5q and 8q. Some of these regional CNAs are suspected of altering gene expression and could influence clinical outcomes. Despite many studies of CNAs in RCC, there are currently no descriptions of genomic copy number alterations in a Brazilian ccRCC cohort. This study was designed to evaluate the chromosomal profile of CNAs in Brazilian ccRCC tumors and explore clinical associations. A total of 92 ccRCC Brazilian patients that underwent nephrectomy at Barretos Cancer Hospital were analyzed for CNAs by array comparative genomic hybridization. Most patients in the cohort had early-stage localized disease. The most significant alterations were loss of 3p (87.3%), 14q (35.8%), 6q (29.3%), 9p (28.6%) and 10q (25.0%), and gains of 5q (59.7%), 7p (29.3%) and 16q (20.6%). Bioinformatics analysis revealed 19 genes mapping to CNA significant regions, including SETD2, BAP1, FLT4, PTEN, FGFR4 and NSD1. Moreover, gain of 5q34-q35.3 (FLT4 and NSD1) and loss of 6q23.2-q23.3 (MYB) and 9p21.3 (MLLT3) had gene expression levels that correlated with TCGA data and was also associated with advanced disease features, such as larger tumors, Fuhrman 3, metastasis at diagnosis and death. The loss of region 14q22.1 which encompasses the NIN gene was associated with poor overall survival. Overall, this study provides the first CNA landscape of Brazilian patients and pinpoints genomic regions and specific genes worthy of more detailed investigations. Our results highlight important genes that are associated with copy number changes involving large chromosomal regions that are potentially related to ccRCC tumorigenesis and disease biology for future clinical investigations.
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Affiliation(s)
- Flávia Gonçalves Fernandes
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos 14784-400, Brazil; (F.G.F.); (H.C.S.S.); (R.A.d.S.)
| | | | - João Neif Antonio Júnior
- Department of Medical Oncology, Barretos Cancer Hospital, Barretos 14784-400, Brazil; (J.N.A.J.); (L.E.Z.); (F.M.C.); (A.O.N.S.); (S.V.S.)
| | - Rosana Antunes da Silveira
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos 14784-400, Brazil; (F.G.F.); (H.C.S.S.); (R.A.d.S.)
| | - Luis Eduardo Zucca
- Department of Medical Oncology, Barretos Cancer Hospital, Barretos 14784-400, Brazil; (J.N.A.J.); (L.E.Z.); (F.M.C.); (A.O.N.S.); (S.V.S.)
| | - Flavio Mavignier Cárcano
- Department of Medical Oncology, Barretos Cancer Hospital, Barretos 14784-400, Brazil; (J.N.A.J.); (L.E.Z.); (F.M.C.); (A.O.N.S.); (S.V.S.)
- Barretos School of Health Sciences Dr Paulo Prata-FACISB, Barretos 14785-002, Brazil
| | - André Octavio Nicolau Sanches
- Department of Medical Oncology, Barretos Cancer Hospital, Barretos 14784-400, Brazil; (J.N.A.J.); (L.E.Z.); (F.M.C.); (A.O.N.S.); (S.V.S.)
| | - Luciano Neder
- Department of Pathology, Barretos Cancer Hospital, Barretos 14784-400, Brazil; (L.N.); (C.S.-N.)
| | | | - Sergio Vicente Serrano
- Department of Medical Oncology, Barretos Cancer Hospital, Barretos 14784-400, Brazil; (J.N.A.J.); (L.E.Z.); (F.M.C.); (A.O.N.S.); (S.V.S.)
- Barretos School of Health Sciences Dr Paulo Prata-FACISB, Barretos 14785-002, Brazil
| | - Eric Jonasch
- Department of Genitourinary Medical Oncology, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA;
| | - Rui Manuel Reis
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos 14784-400, Brazil; (F.G.F.); (H.C.S.S.); (R.A.d.S.)
- Life and Health Sci Research Institute (ICVS), Medical School, University of Minho, 4710-057 Braga, Portugal
- ICVS/3B’s-PT Government Associate Laboratory, 4710-057 Braga/Guimarães, Portugal
| | - Adriane Feijó Evangelista
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos 14784-400, Brazil; (F.G.F.); (H.C.S.S.); (R.A.d.S.)
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17
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Brunhara BB, Becker AP, Neder L, Gonçalves PG, de Oliveira C, Clara CA, Reis RM, Bidinotto LT. Evaluation of the prognostic potential of EGFL7 in pilocytic astrocytomas. Neuropathology 2020; 41:21-28. [PMID: 33191640 DOI: 10.1111/neup.12698] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 06/15/2020] [Accepted: 06/16/2020] [Indexed: 12/14/2022]
Abstract
Pilocytic astrocytoma (PA) is the most frequent solid neoplasm in childhood. It has a good 5-year overall survival (90% in childhood and 52% in adults). However, up to 20% of patients experience residual tumor growth, recurrence, and death. Although the main genetic alteration of PAs, including KIAA1549:BRAF fusion, involves chromosome 7q34, we previously found frequent loss in chr9q34.3 locus in a small subset of these tumors. Among the genes present in this locus, EGFL7 is related to poor prognosis in several tumor types. In this study, we aimed to assess EGFL7 expression through immunohistochemistry, and to evaluate its prognostic value in a series of 64 clinically and molecularly well-characterized pilocytic astrocytomas. We found high expression of EGFL7 in 71.9% of patients. Low EGFL7 expression was associated with older patients, the mean age mainly older than 11 years (P = 0.027). EGFL7 expression was not associated with presence of KIAA1549:BRAF fusion, BRAF mutation, FGFR1 mutation, nor FGFR1 duplication. Moreover, high EGFL7 expression was associated with high FGFR1 (P = 0.037) and 5'-deoxy-5'-methyltioadenosine phosphorylase (MTAP) (P = 0.005) expression, and with unfavorable outcome of patients (P = 0.047). Multivariate analysis revealed low EGFL7 expression related to older patients and high EGFL7 expression related to retained expression of MTAP. In addition, we found a borderline significance of unfavorable outcome and high EGFL7 expression. Finally, EGFL7 expression was not associated with overall or event-free survival of PA patients. Our findings point to EGFL7 expression as a novel candidate prognostic marker in PA, which should be further investigated.
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Affiliation(s)
- Bruno B Brunhara
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, Brazil.,Barretos School of Health Sciences, Dr. Paulo Prata - FACISB, Barretos, Brazil
| | - Aline P Becker
- Department of Radiation Oncology, The Ohio State University, Columbus, Ohio, USA
| | - Luciano Neder
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, Brazil
| | - Paola G Gonçalves
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, Brazil.,Department of Pathology, Botucatu Medical School, São Paulo State University-UNESP, Botucatu, Brazil
| | - Cristiane de Oliveira
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, Brazil.,Department of Pathology, Botucatu Medical School, São Paulo State University-UNESP, Botucatu, Brazil
| | - Carlos A Clara
- Department of Neurosurgery, Barretos Cancer Hospital, Barretos, Brazil
| | - Rui M Reis
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, Brazil.,Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Lucas T Bidinotto
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, Brazil.,Barretos School of Health Sciences, Dr. Paulo Prata - FACISB, Barretos, Brazil.,Department of Pathology, Botucatu Medical School, São Paulo State University-UNESP, Botucatu, Brazil
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18
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Dombroski TCD, Peixoto-Santos JE, Maciel K, Baqui MMA, Velasco TR, Sakamoto AC, Assirati JA, Carlotti CG, Machado HR, Sousa GKD, Hanamura K, Leite JP, Costa da Costa J, Palmini AL, Paglioli E, Neder L, Spreafico R, Shirao T, Garbelli R, Martins AR. Drebrin expression patterns in patients with refractory temporal lobe epilepsy and hippocampal sclerosis. Epilepsia 2020; 61:1581-1594. [PMID: 32662890 DOI: 10.1111/epi.16595] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [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: 03/19/2020] [Revised: 06/08/2020] [Accepted: 06/08/2020] [Indexed: 12/15/2022]
Abstract
OBJECTIVE Drebrins are crucial for synaptic function and dendritic spine development, remodeling, and maintenance. In temporal lobe epilepsy (TLE) patients, a significant hippocampal synaptic reorganization occurs, and synaptic reorganization has been associated with hippocampal hyperexcitability. This study aimed to evaluate, in TLE patients, the hippocampal expression of drebrin using immunohistochemistry with DAS2 or M2F6 antibodies that recognize adult (drebrin A) or adult and embryonic (pan-drebrin) isoforms, respectively. METHODS Hippocampal sections from drug-resistant TLE patients with hippocampal sclerosis (HS; TLE, n = 33), of whom 31 presented with type 1 HS and two with type 2 HS, and autopsy control cases (n = 20) were assayed by immunohistochemistry and evaluated for neuron density, and drebrin A and pan-drebrin expression. Double-labeling immunofluorescences were performed to localize drebrin A-positive spines in dendrites (MAP2), and to evaluate whether drebrin colocalizes with inhibitory (GAD65) and excitatory (VGlut1) presynaptic markers. RESULTS Compared to controls, TLE patients had increased pan-drebrin in all hippocampal subfields and increased drebrin A-immunopositive area in all hippocampal subfields but CA1. Drebrin-positive spine density followed the same pattern as total drebrin quantification. Confocal microscopy indicated juxtaposition of drebrin-positive spines with VGlut1-positive puncta, but not with GAD65-positive puncta. Drebrin expression in the dentate gyrus of TLE cases was associated negatively with seizure frequency and positively with verbal memory. TLE patients with lower drebrin-immunopositive area in inner molecular layer (IML) than in outer molecular layer (OML) had a lower seizure frequency than those with higher or comparable drebrin-immunopositive area in IML compared with OML. SIGNIFICANCE Our results suggest that changes in drebrin-positive spines and drebrin expression in the dentate gyrus of TLE patients are associated with lower seizure frequency, more preserved verbal memory, and a better postsurgical outcome.
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Affiliation(s)
| | - Jose Eduardo Peixoto-Santos
- Discipline of Neuroscience, Department of Neurology and Neurosurgery, Paulista Medical School, UNIFESP, São Paulo, Brazil
| | - Karina Maciel
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Munira Muhammad Abdel Baqui
- Department of Cellular and Molecular Biology and Pathogenic Bioagents, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Tonicarlo Rodrigues Velasco
- Ribeirao Preto Epilepsy Surgery Center, Clinics Hospital, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Americo Ceiki Sakamoto
- Ribeirao Preto Epilepsy Surgery Center, Clinics Hospital, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - João Alberto Assirati
- Department of Surgery, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Carlos Gilberto Carlotti
- Department of Surgery, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Hélio Rubens Machado
- Department of Surgery, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Gleice Kelly de Sousa
- Graduate Program of Health Sciences, Federal University of Triângulo Mineiro, Uberaba, Brazil
| | - Kenji Hanamura
- Department of Neurobiology and Behavior, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - João Pereira Leite
- Department of Neurosciences and Behavioral Sciences, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Jaderson Costa da Costa
- Department of Internal Medicine, School of Medicine, Epilepsy Surgery Program and Brain Institute, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Brazil
| | - André Luiz Palmini
- Department of Internal Medicine, School of Medicine, Epilepsy Surgery Program and Brain Institute, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Eliseu Paglioli
- Department of Surgery, School of Medicine, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Luciano Neder
- Department of Pathology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Roberto Spreafico
- Clinical Epileptology and Experimental Neurophysiology Unit, Scientific Institute for Research and Health Care Foundation Carlo Besta Neurological Institute, Milan, Italy
| | - Tomoaki Shirao
- Department of Neurobiology and Behavior, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - Rita Garbelli
- Clinical Epileptology and Experimental Neurophysiology Unit, Scientific Institute for Research and Health Care Foundation Carlo Besta Neurological Institute, Milan, Italy
| | - Antonio Roberto Martins
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil.,Institute for Neuroscience and Behavior, Ribeirão Preto, Brazil
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19
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Pinto F, Costa ÂM, Santos GC, Matsushita MM, Costa S, Silva VA, Miranda-Gonçalves V, Lopes CM, Clara CA, Becker AP, Neder L, Hajj GN, da Cunha IW, Jones C, Andrade RP, Reis RM. The T-box transcription factor brachyury behaves as a tumor suppressor in gliomas. J Pathol 2020; 251:87-99. [PMID: 32154590 DOI: 10.1002/path.5419] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [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: 08/10/2019] [Revised: 02/11/2020] [Accepted: 03/02/2020] [Indexed: 12/19/2022]
Abstract
The oncogene brachyury (TBXT) is a T-box transcription factor that is overexpressed in multiple solid tumors and is associated with tumor aggressiveness and poor patient prognosis. Gliomas comprise the most common and aggressive group of brain tumors, and at the present time the functional and clinical impact of brachyury expression has not been investigated previously in these neoplasms. Brachyury expression (mRNA and protein) was assessed in normal brain (n = 67), glioma tissues (n = 716) and cell lines (n = 42), and further in silico studies were undertaken using genomic databases totaling 3115 samples. Our glioma samples were analyzed for copy number (n = 372), promoter methylation status (n = 170), and mutation status (n = 1569 tissues and n = 52 cell lines) of the brachyury gene. The prognostic impact of brachyury expression was studied in 1524 glioma patient tumors. The functional impact of brachyury on glioma proliferation, viability, and cell death was evaluated both in vitro and in vivo. Brachyury was expressed in the normal brain, and significantly downregulated in glioma tissues. Loss of brachyury was associated with tumor aggressiveness and poor survival in glioma patients. Downregulation of brachyury was not associated with gene deletion, promoter methylation, or inactivating point mutations. Brachyury re-expression in glioma cells was found to decrease glioma tumorigenesis by induction of autophagy. These data strongly suggest that brachyury behaves as a tumor suppressor gene in gliomas by modulating autophagy. It is important to note that brachyury constitutes an independent positive biomarker of patient prognosis. Our findings indicate that the role of brachyury in tumorigenesis may be tissue-dependent and demands additional investigation to guide rational interventions. © 2020 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.
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Affiliation(s)
- Filipe Pinto
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Guimarães, Portugal.,I3S - Instituto de Investigação e Inovação em Saúde, University of Porto, Porto, Portugal.,Institute of Molecular Pathology and Immunology of the University of Porto - IPATIMUP, Porto, Portugal
| | - Ângela M Costa
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Guimarães, Portugal.,I3S - Instituto de Investigação e Inovação em Saúde, University of Porto, Porto, Portugal
| | - Gisele C Santos
- Department of Pathology, Barretos Cancer Hospital, São Paulo, Brazil
| | | | - Sandra Costa
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Guimarães, Portugal
| | - Viviane Ao Silva
- Molecular Oncology Research Center, Barretos Cancer Hospital, São Paulo, Brazil
| | - Vera Miranda-Gonçalves
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Guimarães, Portugal
| | - Celeste M Lopes
- Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal.,Faculty of Pharmacy, University of Coimbra, Coimbra, Portugal
| | - Carlos A Clara
- Neurosurgery Department, Barretos Cancer Hospital, Barretos, São Paulo, Brazil
| | - Aline P Becker
- Molecular Oncology Research Center, Barretos Cancer Hospital, São Paulo, Brazil
| | - Luciano Neder
- Department of Pathology and Forensic Medicine, Faculty of Medicine of Ribeirão Preto, University of São Paulo (FMRP-USP), São Paulo, Brazil
| | - Glaucia Nm Hajj
- International Research Center, AC Camargo Cancer Center, São Paulo, Brazil
| | - Isabela W da Cunha
- Department of Molecular Diagnosis, Anatomic Pathology Department, AC Camargo Cancer Center, São Paulo, Brazil
| | - Chris Jones
- Divisions of Molecular Pathology and Cancer Therapeutics, The Institute of Cancer Research (ICR), Sutton, UK
| | - Raquel P Andrade
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Guimarães, Portugal.,Regenerative Medicine Program; Department of Medicine and Biomedical Sciences, University of Algarve, Faro, Portugal.,CBMR, Centre for Biomedical Research, Universidade do Algarve, Faro, Portugal
| | - Rui M Reis
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Guimarães, Portugal.,Molecular Oncology Research Center, Barretos Cancer Hospital, São Paulo, Brazil
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20
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Loureiro LVM, Neder L, Callegaro-Filho D, de Oliveira Koch L, Stavale JN, Malheiros SMF. The immunohistochemical landscape of the VEGF family and its receptors in glioblastomas. Surg Exp Pathol 2020. [DOI: 10.1186/s42047-020-00060-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Abstract
Background
Angiogenesis is one of the hallmarks of cancer. This complex mechanism of tumor progression provides tumors cells with essential nutrients. There have been a limited number of investigations of markers of angiogenesis in Glioblastomas (GBMs), and most previous studies have focused on VEGF-A. Recent evidence suggests that there is a complex lymphatic system in central nervous system (CNS), which suggests VEGF-C and VEGF–D as interesting biomarker candidates. This study was designed to evaluate the expressions of VEGF-A, −C, −D and their co-receptors, VEGFR-1, VEGFR-2, and VEGFR-3 by immunohistochemistry (IHC) using a series of GBMs. In addition, we evaluate any putative correlations between IHC expression levels of VEGF and clinical data of patients.
Methods
Tumor samples of 70 GBM patients (64 isocitrate dehydrogenase-1 wildtype (wtIDH-1) and 6 mutant (mutIDH-1)) were assessed by IHC using tissue microarray platforms for VEGF subunits and their co-receptors. The medical records were reviewed for clinical and therapeutic data.
Results
All VEGF subunits and receptors were highly expressed in GBMs: 57 out of 62 (91.9%), 53 out of 56 (94.6%) and 55 out of 63 cases (87.3%) showed VEGF-A, VEGF-C and -D imunoexpression, respectively. Interestingly, we had found both nuclear and cytoplasmic localization of VEGF-C staining in GBM tumor cells. The frequency of immunoexpression of VEGF receptors was the following: VEGFR-1, 65 out of 66 cases (98.5%); VEGFR-2, 63 out of 64 cases (98.4%); VEGFR-3, 49 out of 50 cases (90.0%). There were no significant differences in the patient overall survival (OS) related to the VEGF staining. A weak and monotonous correlation was observed between VEGF and its cognate receptors. The pattern of VEGF IHC was found to be similar when GBM mutIDH-1 subtypes were compared to wtIDH-1.
Conclusion
Both VEGF-C and –D, together with their receptors, were found to be overexpressed in the majority GBMs, and the IHC expression levels did not correlate with OS or IDH status. To understand the significance of the interactions and increased expression of VEGF-C, VEGF-D, VEGFR-2, and VEGFR-3 axis in GBM requires more extensive studies. Also, functional assays using a larger series of GBM is also necessary to better address the biological meaning of nuclear VEGF-C expression in tumor cells.
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21
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Valera ET, Neder L, Queiroz RG, Santos AC, Sousa GR, Oliveira RS, Santos MV, Machado HR, Tone LG. Perinatal complex low- and high-grade glial tumor harboring a novel GIGYF2-ALK fusion. Pediatr Blood Cancer 2020; 67:e28015. [PMID: 31556208 DOI: 10.1002/pbc.28015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Accepted: 09/12/2019] [Indexed: 12/17/2022]
Affiliation(s)
- Elvis T Valera
- Department of Pediatrics, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
| | - Luciano Neder
- Department of Pathology and Forensic Medicine, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
| | - Rosane G Queiroz
- Department of Pediatrics, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
| | - Antonio C Santos
- Department of Oncology and Image, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
| | - Graziella R Sousa
- Department of Pediatrics, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
| | - Ricardo S Oliveira
- Department of Surgery and Anatomy, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
| | - Marcelo V Santos
- Division of Pediatric Neurosurgery, Department of Surgery and Anatomy, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
| | - Hélio R Machado
- Division of Pediatric Neurosurgery, Department of Surgery and Anatomy, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
| | - Luiz Gonzaga Tone
- Department of Pediatrics, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
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22
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Fernandes A, Mendes ND, Almeida GM, Nogueira GO, Machado CDM, Horta-Junior JDADC, Assirati Junior JA, Garcia-Cairasco N, Neder L, Sebollela A. Short-Term Free-Floating Slice Cultures from the Adult Human Brain. J Vis Exp 2019. [PMID: 31762466 DOI: 10.3791/59845] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
Organotypic, or slice cultures, have been widely employed to model aspects of the central nervous system functioning in vitro. Despite the potential of slice cultures in neuroscience, studies using adult nervous tissue to prepare such cultures are still scarce, particularly those from human subjects. The use of adult human tissue to prepare slice cultures is particularly attractive to enhance the understanding of human neuropathologies, as they hold unique properties typical of the mature human brain lacking in slices produced from rodent (usually neonatal) nervous tissue. This protocol describes how to use brain tissue collected from living human donors submitted to resective brain surgery to prepare short-term, free-floating slice cultures. Procedures to maintain and perform biochemical and cell biology assays using these cultures are also presented. Representative results demonstrate that the typical human cortical lamination is preserved in slices after 4 days in vitro (DIV4), with expected presence of the main neural cell types. Moreover, slices at DIV4 undergo robust cell death when challenged with a toxic stimulus (H2O2), indicating the potential of this model to serve as a platform in cell death assays. This method, a simpler and cost-effective alternative to the widely used protocol using membrane inserts, is mainly recommended for running short-term assays aimed to unravel mechanisms of neurodegeneration behind age-associated brain diseases. Finally, although the protocol is devoted to using cortical tissue collected from patients submitted to surgical treatment of pharmacoresistant temporal lobe epilepsy, it is argued that tissue collected from other brain regions/conditions should also be considered as sources to produce similar free-floating slice cultures.
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Affiliation(s)
- Artur Fernandes
- Department of Biochemistry and Immunology, Ribeirão Preto Medical School, University of São Paulo; Department of Physiology, Ribeirão Preto Medical School, University of São Paulo
| | - Niele Dias Mendes
- Department of Biochemistry and Immunology, Ribeirão Preto Medical School, University of São Paulo; Department of Pathology and Forensic Medicine, Ribeirão Preto Medical School, University of São Paulo
| | - Glaucia Maria Almeida
- Department of Biochemistry and Immunology, Ribeirão Preto Medical School, University of São Paulo
| | | | | | | | | | | | - Luciano Neder
- Department of Pathology and Forensic Medicine, Ribeirão Preto Medical School, University of São Paulo
| | - Adriano Sebollela
- Department of Biochemistry and Immunology, Ribeirão Preto Medical School, University of São Paulo;
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23
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Leal LF, Cavagna RDO, Campanella NC, Mançano B, Almeida GC, Matsushita M, Almeida Junior CR, Saggioro F, Stavale JN, Malheiros SMF, Lima M, Hajj GNM, Neder L, Reis RM. Lack of KBTBD4 Mutations in Molecularly Classified Brazilian Medulloblastomas. J Neuropathol Exp Neurol 2019; 78:788-790. [DOI: 10.1093/jnen/nlz066] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 05/03/2019] [Accepted: 07/01/2019] [Indexed: 11/13/2022] Open
Abstract
Abstract
Medulloblastoma is the most frequent malignant brain tumor in children, representing 20% of all childhood brain tumors. Currently, medulloblastomas are molecularly classified in 4 subgroups that are associated with distinctive clinicopathological features. KBTBD4 mutations were recently described in a subset of MBGRP3 and MBGRP4 medulloblastomas subgroups. However, no other studies reported KBTBD4 mutations in medulloblastomas. Thus, our aim was to investigate KBTBD4 mutations in a Brazilian series of medulloblastoma. We evaluated 128 medulloblastoma patients molecularly classified from 4 Brazilian reference centers. DNA from formalin-fixed, paraffin-embedded samples was screened for KBTBD4 hotspot mutations by Sanger sequencing. Most of the patients were male, average age was 16.5 years old and average overall survival was 55.9 months. The predominant histological subtype was the classic subtype, followed by nodular/desmoplastic, and the predominant medulloblastoma molecular subtype was the MBSHH subgroup (46%), followed by MBGRP3 and MBGRP4 (19%/each), and MBWNT (16%). Among the 128 samples, 111 were successfully sequenced. No KBTBD4 mutations were identified in 111 samples. Our findings suggest that KBTBD4 mutations are uncommon in Brazilian MBGRP3 and MBGRP4 medulloblastomas subgroups. Further studies in a larger series of MBGRP3 and MBGRP4 medulloblastomas are warranted to better assess role of KBTBD4 mutations.
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Affiliation(s)
| | | | | | | | | | | | | | - Fabiano Saggioro
- Department of Pathology, Ribeirao Preto Medical School, University of São Paulo, Ribeirao Preto, São Paulo, Brazil
| | | | | | - Matheus Lima
- International Research Center, A. C. Camargo Cancer Center, National Institute of Science and Technology in Oncogenomics, Brazil
| | - Glaucia N M Hajj
- International Research Center, A. C. Camargo Cancer Center, National Institute of Science and Technology in Oncogenomics, Brazil
| | - Luciano Neder
- Department of Pathology, Ribeirao Preto Medical School, University of São Paulo, Ribeirao Preto, São Paulo, Brazil
| | - Rui Manuel Reis
- Molecular Oncology Research Center
- Life and Health Sciences Research Institute (ICVS), Medical School, University of Minho, Braga, Portugal
- ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
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24
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Cruzeiro GAV, Dos Reis MB, Silveira VS, Lira RCP, Carlotti CG, Neder L, Oliveira RS, Yunes JA, Brandalise SR, Aguiar S, Eterovic AK, Tone LG, Scrideli CA, Valera ET. HIF1A is Overexpressed in Medulloblastoma and its Inhibition Reduces Proliferation and Increases EPAS1 and ATG16L1 Methylation. Curr Cancer Drug Targets 2019; 18:287-294. [PMID: 28302031 DOI: 10.2174/1568009617666170315162525] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [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: 06/23/2016] [Revised: 01/04/2017] [Accepted: 01/09/2017] [Indexed: 11/22/2022]
Abstract
BACKGROUND Genetic and epigenetic modifications are closely related to tumor initiation and progression and can provide guidance for understanding tumor functioning, potentially leading to the discovery of new therapies. Studies have associated hypoxia-related genes to tumor progression and chemo/radioresistance in brain tumors. Information on the expression profile of hypoxiarelated genes in pediatric medulloblastoma, although scarce, may reveal relevant information that could support treatment decisions. OBJECTIVE Our study focused on evaluation the of CA9, CA12, HIF1A, EPAS1, SCL2A1 and VEGF genes in 41 pediatric fresh-frozen medulloblastoma sample. Additionally, we analyzed the effect of hypoxia and normoxia in the pediatric medulloblastoma cell-line UW402. Furthermore, we assessed the effects of HIF1A knockdown in cell-proliferation and methylation levels of genes related to hypoxia, apoptosis and autophagy. METHOD qPCR was performed to evaluate mRNA levels, and Western blot to confirm HIF1A silencing in both patient samples and cell line. Pyrosequencing was performed to asses the methylation levels after HIF1A knockdown in the UW402 cell line. RESULTS A higher HIF1A mRNA level was observed in MB patients when compared to the cerebellum (non-tumor match). In UW402 MB cell-line, chemically induced hypoxic resulted in an increase of mRNA levels of HIF1A, VEGF, SCL2A1 and CA9 genes. Additionally, HIF1A knockdown induced a decrease in the expression of hypoxia related genes and a decrease of 30% in cell proliferation was also observed. Also, a significant increase in the methylation of ATG16L1 promoter and decrease in the methylation of EPAS1 promoter were observed after HIF1A knockdown. CONCLUSION HIF1A knockdown in medulloblastoma cells lead to decreased cellular proliferation, suggesting that HIF1A can be a potential therapeutic target to be explored in the medulloblastoma. However, the mechanisms behind HIF1A protein stabilization and function are very complex and more data need to be generated to potentially use HIF1A as a therapeutical target.
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Affiliation(s)
- Gustavo Alencastro Veiga Cruzeiro
- Department of Genetics, Ribeirao Preto Medicine School, University of Sao Paulo, Avenida dos Bandeirantes 3900, 14049-900, Ribeirao Preto, SP, Brazil
| | - Maristella Bergamo Dos Reis
- Department of Pediatrics, Ribeirao Preto Medicine School, University of Sao Paulo, Avenida dos Bandeirantes 3900, 14049-900, Ribeirao Preto, SP, Brazil
| | - Vanessa Silva Silveira
- Department of Genetics, Ribeirao Preto Medicine School, University of Sao Paulo, Avenida dos Bandeirantes 3900, 14049-900, Ribeirao Preto, SP, Brazil
| | - Regia Caroline Peixoto Lira
- Department of Pediatrics, Ribeirao Preto Medicine School, University of Sao Paulo, Avenida dos Bandeirantes 3900, 14049-900, Ribeirao Preto, SP, Brazil
| | - Carlos Gilberto Carlotti
- Department of Surgery, Ribeirao Preto Medicine School, University of Sao Paulo, Avenida dos Bandeirantes 3900, 14049-900, Ribeirao Preto, SP, Brazil
| | - Luciano Neder
- Department of Surgery, Ribeirao Preto Medicine School, University of Sao Paulo, Avenida dos Bandeirantes 3900, 14049-900, Ribeirao Preto, SP, Brazil
| | - Ricardo Santos Oliveira
- Department of Surgery, Ribeirao Preto Medicine School, University of Sao Paulo, Avenida dos Bandeirantes 3900, 14049-900, Ribeirao Preto, SP, Brazil
| | - Jose Andres Yunes
- Department of Pathology, Ribeirao Preto Medicine School, University of Sao Paulo, Avenida dos Bandeirantes 3900, 14049-900, Ribeirao Preto, SP, Brazil.,State University of Campinas, Cidade Universitária Zeferino Vaz - Barão Geraldo, 13083-970, Campinas, SP, Brazil
| | - Silvia Regina Brandalise
- Department of Pathology, Ribeirao Preto Medicine School, University of Sao Paulo, Avenida dos Bandeirantes 3900, 14049-900, Ribeirao Preto, SP, Brazil.,State University of Campinas, Cidade Universitária Zeferino Vaz - Barão Geraldo, 13083-970, Campinas, SP, Brazil
| | - Simone Aguiar
- Department of Pathology, Ribeirao Preto Medicine School, University of Sao Paulo, Avenida dos Bandeirantes 3900, 14049-900, Ribeirao Preto, SP, Brazil
| | - Agda Karina Eterovic
- Institute of Personalized Cancer Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, United States
| | - Luiz Gonzaga Tone
- Department of Genetics, Ribeirao Preto Medicine School, University of Sao Paulo, Avenida dos Bandeirantes 3900, 14049-900, Ribeirao Preto, SP, Brazil
| | - Carlos Alberto Scrideli
- Department of Pediatrics, Ribeirao Preto Medicine School, University of Sao Paulo, Avenida dos Bandeirantes 3900, 14049-900, Ribeirao Preto, SP, Brazil
| | - Elvis Terci Valera
- Department of Pediatrics, Ribeirao Preto Medicine School, University of Sao Paulo, Avenida dos Bandeirantes 3900, 14049-900, Ribeirao Preto, SP, Brazil
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25
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Kerbauy MN, Pasqualin DDC, Smid J, Iquizli R, Kerbauy LN, Nitrini R, Ribas GC, Neder L, Hamerschlak N. Diffuse large B-cell lymphoma of the central nervous system presenting as "lymphomatosis cerebri" and dementia in elderly man: Case report and review of the literature. Medicine (Baltimore) 2019; 98:e14367. [PMID: 30732171 PMCID: PMC6380721 DOI: 10.1097/md.0000000000014367] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
RATIONALE Lymphomatosis cerebri is a rare form of PCNSL, characterized by diffuse infiltration of lymphoma cells in cerebral parenchyma, without mass-formation and mild or no contrast enhancement on magnetic resonance (MR) imaging. There are less than 50 cases described in the literature under the term Lymphomatosis cerebri. PATIENT CONCERNS A 74-year-old man presented to our service with progressive dementia for 12 months and accelerated cognitive decline within the last two months. Brain magnetic resonance imaging showed areas of hyperintensity involving predominantly the white matter of frontal lobes and knee of the corpus callosum, along with areas of blood-brain barrier disruption and areas of restricted diffusion. Stereotaxy brain surgery was indicated into contrasting areas and histologically there was heterogeneous foci of discreet infiltration of rare medium-large lymphoid cells intermingled with inflammatory cells and these atypical lymphoid cells were placed on breakdown neuropil and did not form tumor mass or sheets of cells, but occasionally displayed perivascular distribution. Immunohistochemically, these atypical lymphoid cells expressed CD20, Bcl2, Bcl6 and, heterogeneously, IRF4/MUM1. DIAGNOSIS The diagnosis of a primary CNS diffuse large B-cell lymphoma manifested as lymphomatosis cerebri was performed. INTERVENTIONS The treatment of choice was: temozolomide 100 mg/m (D1 to D5), methotrexate 3 g/m (D1, D10, and D20) and rituximab 375 mg/m. OUTCOMES The patient evolved with progressive neurological deterioration, regardless of the improvement on neuroimaging. LESSONS We described the diagnostic dilemma we faced with an elderly man with rapid cognitive impairment and a myriad of differential diagnoses, diagnosed with primary CNS diffuse large B-cell lymphoma with a lymphomatosis cerebri-like pattern.
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Affiliation(s)
| | | | - Jerusa Smid
- Department of Neurology - Hospital Israelita Albert Einstein
- Department of Neurology - Faculdade de Medicina da Universidade de São Paulo - USP
| | - Rogerio Iquizli
- Department of Radiology - Hospital Israelita Albert Einstein
| | | | - Ricardo Nitrini
- Department of Neurology - Hospital Israelita Albert Einstein
- Department of Neurology - Faculdade de Medicina da Universidade de São Paulo - USP
| | | | - Luciano Neder
- Department of Pathology - Hospital Israelita Albert Einstein
- Department of Pathology -Ribeirão Preto Medical School
- Department of Pathology - Barretos Cancer Hospital, Brazil
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Sousa GK, Capitelli CS, Dombroski TCD, Zanella CAB, Terra VC, Velasco TR, Machado HR, Assirati JA, Carlotti CG, Alves VM, DaCosta JC, Palmini AL, Paglioli E, Sakamoto AC, Spreafico R, Garbelli R, Neder L, Martins AR. Identification and immunophenotype of abnormal cells present in focal cortical dysplasia type IIb. Surg Exp Pathol 2018. [DOI: 10.1186/s42047-018-0024-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Focal cortical dysplasias (FCDs) are malformations of cortical development that present cortical dyslamination and abnormal cell morphology and are frequently associated with refractory epilepsy. FCD type IIb presents dysmorphic neurons (DNs) and balloon cells (BCs), which are the hallmarks of this dysplasia. Moreover, hypertrophic neurons (HyNs) may be present in FCD types I, II and III. The objective of this study was to perform a detailed morphology and immunophenotype study of BCs, DNs, and HyNs in a cohort of FCD IIb patients.
Methods
Cortices resected as a treatment for refractory epilepsy from 18 cases of FCD type IIb were analysed using Bielschowsky method and haematoxylin and eosin as routine stains. Immunophenotype was performed using specific antibodies to detect epitopes differentially expressed by abnormal cells.
Results
All cases showed cortical dyslamination, BCs, DNs, and HyNs. No cell layer or column could be identified, except for cortical layer I. Lesions predominated in the frontal cortex (11 cases). DNs were large neurons and presented a clumped and or displaced Nissl substance towards the cell membrane, and a cytoplasm accumulation of neurofilament that displaced the nucleus to the cell periphery, as shown by Bielschowsky staining and immunohistochemistry. HyNs were as large as DNs, but without alterations of Nissl substance or dense neurofilament accumulation, with a central nucleus. BCs were identified as large, oval-shaped and pale eosinophilic cells, which lacked the Nissl substance, and presented an eccentric nucleus. BCs and DNs expressed epitopes of both undifferentiated and mature cells, detected using antibodies against nestin, vimentin, class III β-tubulin, pan-neuronal filaments, neurofilament proteins, β-tubulin and NeuN. Only BCs expressed GFAP.
Conclusion
FCDs present with disorganization of the cerebral cortex architecture, abnormal cell morphology, are frequently associated with refractory epilepsy, and their post-surgical prognosis depends on the type of FCD. The diagnosis of focal cortical dysplasia in a surgical specimen relies on the identification of the abnormal cells present in a dysplastic cortex specimen. The current report contributes to the identification of balloon cells, dysmorphic and hypertrophic neurons in the context of focal cortical dysplasia type IIb.
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Darrigo Júnior LG, Lira RCP, Fedatto PF, Marco Antonio DS, Valera ET, Aguiar S, Yunes JA, Brandalise SR, Neder L, Saggioro FP, Becker AP, de Oliveira RS, Machado HR, Panepucci RA, Tone LG, Scrideli CA. MicroRNA profile of pediatric pilocytic astrocytomas identifies two tumor-specific signatures when compared to non-neoplastic white matter. J Neurooncol 2018; 141:373-382. [PMID: 30570705 DOI: 10.1007/s11060-018-03042-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [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: 07/25/2018] [Accepted: 11/01/2018] [Indexed: 01/07/2023]
Abstract
PURPOSES Pilocytic astrocytoma (PA) is a low-grade neoplasm frequently found in childhood. PA is characterized by slow growth and a relatively good prognosis. Genetic mechanisms such as activation of MAPK, BRAF gene deregulation and neurofibromatosis type 1 (NF1) syndrome have been associated with PA development. Epigenetic signature and miRNA expression profile are providing new insights about different types of tumor, including PAs. METHODS In the present study we evaluated global miRNA expression in 16 microdissected pediatric PA specimens, three NF1-associated PAs and 11 cerebral white matter (WM) samples by the microarray method. An additional cohort of 20 PAs was used to validate by qRT-PCR the expression of six miRNAs differentially expressed in the microarray data. RESULTS Unsupervised hierarchical clustering analysis distinguished one cluster with nine PAs, including all NF1 cases and a second group consisting of the WM samples and seven PAs. Among 88 differentially expressed miRNAs between PAs and WM samples, the most underexpressed ones regulate classical pathways of tumorigenesis, while the most overexpressed miRNAs are related to pathways such as focal adhesion, P53 signaling pathway and gliomagenesis. The PAs/NF1 presented a subset of underexpressed miRNAs, which was also associated with known deregulated pathways in cancer such as cell cycle and hippo pathway. CONCLUSIONS In summary, our data demonstrate that PA harbors at least two distinct miRNA signatures, including a subgroup of patients with NF1/PA lesions.
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Affiliation(s)
- Luiz Guilherme Darrigo Júnior
- Department of Pediatrics, Ribeirão Preto Medical School, University of Sao Paulo - USP, Avenida dos Bandeirantes, 3900, Ribeirão Preto, SP, 14049-900, Brazil
| | | | - Paola Fernanda Fedatto
- Department of Pediatrics, Ribeirão Preto Medical School, University of Sao Paulo - USP, Avenida dos Bandeirantes, 3900, Ribeirão Preto, SP, 14049-900, Brazil
| | | | - Elvis Terci Valera
- Department of Pediatrics, Ribeirão Preto Medical School, University of Sao Paulo - USP, Avenida dos Bandeirantes, 3900, Ribeirão Preto, SP, 14049-900, Brazil
| | | | - José Andres Yunes
- State University of Campinas, Campinas, SP, Brazil.,Boldrini´s Children Center, Campinas, SP, Brazil
| | | | - Luciano Neder
- Department of Pathology, Ribeirão Preto Medical School, University of Sao Paulo, Ribeirão Preto, SP, Brazil
| | - Fabiano Pinto Saggioro
- Department of Pathology, Ribeirão Preto Medical School, University of Sao Paulo, Ribeirão Preto, SP, Brazil
| | - Aline Paixão Becker
- Department of Pathology, Ribeirão Preto Medical School, University of Sao Paulo, Ribeirão Preto, SP, Brazil
| | - Ricardo Santos de Oliveira
- Department of Surgery, Ribeirão Preto Medical School, University of Sao Paulo, Ribeirão Preto, SP, Brazil
| | - Hélio Rubens Machado
- Department of Surgery, Ribeirão Preto Medical School, University of Sao Paulo, Ribeirão Preto, SP, Brazil
| | | | - Luiz Gonzaga Tone
- Department of Pediatrics, Ribeirão Preto Medical School, University of Sao Paulo - USP, Avenida dos Bandeirantes, 3900, Ribeirão Preto, SP, 14049-900, Brazil
| | - Carlos Alberto Scrideli
- Department of Pediatrics, Ribeirão Preto Medical School, University of Sao Paulo - USP, Avenida dos Bandeirantes, 3900, Ribeirão Preto, SP, 14049-900, Brazil.
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28
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Valera ET, McConechy MK, Gayden T, Rivera B, Jones DTW, Wittmann A, Han H, Bareke E, Nikbakht H, Mikael L, Queiroz RG, Suazo VK, Phi JH, Kim SK, Park SH, Fukaya R, Yum MS, Ko TS, de Oliveira RS, Machado HR, Brassesco MS, do Santos AC, Simão GN, Ramalho LNZ, Neder L, Scrideli CA, Tone LG, Majewski J, Jabado N. Methylome analysis and whole-exome sequencing reveal that brain tumors associated with encephalocraniocutaneous lipomatosis are midline pilocytic astrocytomas. Acta Neuropathol 2018; 136:657-660. [PMID: 30143858 PMCID: PMC6132939 DOI: 10.1007/s00401-018-1898-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 08/09/2018] [Accepted: 08/09/2018] [Indexed: 11/06/2022]
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29
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Leal LF, Evangelista AF, de Paula FE, Caravina Almeida G, Carloni AC, Saggioro F, Stavale JN, Malheiros SMF, Mançano B, de Oliveira MA, Luu B, Neder L, Taylor MD, Reis RM. Reproducibility of the NanoString 22-gene molecular subgroup assay for improved prognostic prediction of medulloblastoma. Neuropathology 2018; 38:475-483. [PMID: 30155928 DOI: 10.1111/neup.12508] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [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: 04/06/2018] [Revised: 06/22/2018] [Accepted: 07/25/2018] [Indexed: 11/30/2022]
Abstract
Medulloblastoma is the most frequent malignant brain tumor in children. Four medulloblastoma molecular subgroups, MBSHH , MBWNT , MBGRP3 and MBGRP4 , have been identified by integrated high-throughput platforms. Recently, a 22-gene panel NanoString-based assay was developed for medulloblastoma molecular subgrouping, but the robustness of this assay has not been widely evaluated. Mutations in the gene for human telomerase reverse transcriptase (hTERT) have been found in medulloblastomas and are associated with distinct molecular subtypes. This study aimed to implement the 22-gene panel in a Brazilian context, and to associate the molecular profile with patients' clinical-pathological features. Formalin-fixed, paraffin-embedded (FFPE) medulloblastoma samples (n = 104) from three Brazilian centers were evaluated. Expression profiling of the 22-gene panel was performed by NanoString and a Canadian series (n = 240) was applied for training phase. hTERT mutations were analyzed by PCR followed by direct Sanger sequencing and the molecular profile was associated with patients' clinicopathological features. Overall, 65% of the patients were male, average age at diagnosis was 18 years and 7% of the patients presented metastasis at diagnosis. The molecular classification was attained in 100% of the cases, with the following frequencies: MBSHH (n = 51), MBWNT (n = 19), MBGRP4 (n = 19) and MBGRP3 (n = 15). The MBSHH and MBGRP3 subgroups were associated with older and younger patients, respectively. The MBGRP4 subgroup exhibited the lowest 5-year cancer-specific overall survival (OS), yet in the multivariate analysis, only metastasis at diagnosis and surgical resection were associated with OS. hTERT mutations were detected in 29% of the cases and were associated with older patients, increased hTERT expression and MBSHH subgroup. The 22-gene panel provides a reproducible assay for molecular subgrouping of medulloblastoma FFPE samples in a routine setting and is well-suited for future clinical trials.
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Affiliation(s)
- Letícia F Leal
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, Brazil
| | | | - Flávia E de Paula
- Molecular Diagnostic Laboratory, Barretos Cancer Hospital, Barretos, Brazil
| | | | - Adriana C Carloni
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, Brazil
| | - Fabiano Saggioro
- Department of Pathology, Ribeirao Preto Medical School, University of São Paulo, Ribeirao Preto, Brazil
| | - João N Stavale
- Department of Pathology, Universidade Federal de São Paulo, São Paulo, Brazil
| | | | - Bruna Mançano
- Children and Young Adult's Cancer Hospital, Barretos Cancer Hospital, Barretos, Brazil
| | | | - Betty Luu
- Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | - Luciano Neder
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, Brazil.,Department of Pathology, Barretos Cancer Hospital, Barretos, Brazil
| | - Michael D Taylor
- Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | - Rui M Reis
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, Brazil.,Molecular Diagnostic Laboratory, Barretos Cancer Hospital, Barretos, Brazil.,Life and Health Sciences Research Institute (ICVS), Health Sciences School, University of Minho, Braga, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
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30
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Jucá CEB, Colli LM, Martins CS, Campanini ML, Paixão B, Jucá RV, Saggioro FP, de Oliveira RS, Moreira AC, Machado HR, Neder L, Antonini SR, de Castro M. Impact of the Canonical Wnt Pathway Activation on the Pathogenesis and Prognosis of Adamantinomatous Craniopharyngiomas. Horm Metab Res 2018; 50:575-581. [PMID: 29625497 DOI: 10.1055/a-0593-5956] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
CTNNB1 mutations and abnormal β-catenin distribution are associated with the pathogenesis of adamantinomatous craniopharyngioma (aCP). We evaluated the expression of the canonical Wnt pathway components in aCPs and its association with CTNNB1 mutations and tumor progression. Tumor samples from 14 aCP patients and normal anterior pituitary samples from eight individuals without pituitary disease were studied. Gene expression of Wnt pathway activator (WNT4), inhibitors (SFRP1, DKK3, AXIN1, and APC), transcriptional activator (TCF7), target genes (MYC, WISP2, and, CDH1), and Wnt modulator (TP53) was evaluated by qPCR. β-Catenin, MYC, and WISP2 expression was determined by immunohistochemistry (IHC). The transcription levels of all genes studied, except APC, were higher in aCPs as compared to controls and TCF7 mRNA levels correlated with CTNNB1 mutation. CDH1 mRNA was overexpressed in tumor samples of patients with disease progression in comparison to those with stable disease. β-Catenin was positive and aberrantly distributed in 11 out of 14 tumor samples. Stronger β-catenin immunostaining associated positively with tumor progression. MYC positive staining was found in 10 out of 14 cases, whereas all aCPs were negative for WISP2. Wnt pathway genes were overexpressed in aCPs harboring CTNNB1 mutations and in patients with progressive disease. Recurrence was associated with stronger staining for β-catenin. These data suggest that Wnt pathway activation contributes to the pathogenesis and prognosis of aCPs.
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Affiliation(s)
- Carlos Eduardo Barros Jucá
- Department of Surgery and Anatomy, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
| | - Leandro Machado Colli
- Department of Internal Medicine, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
| | - Clarissa Silva Martins
- Department of Internal Medicine, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
| | - Marina Lanciotti Campanini
- Department of Internal Medicine, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
| | - Beatriz Paixão
- Department of Internal Medicine, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
| | - Renata Viana Jucá
- Department of Pathology, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
| | - Fabiano Pinto Saggioro
- Department of Pathology, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
| | - Ricardo Santos de Oliveira
- Department of Surgery and Anatomy, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
| | - Ayrton Custódio Moreira
- Department of Internal Medicine, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
| | - Hélio Rubens Machado
- Department of Surgery and Anatomy, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
| | - Luciano Neder
- Department of Pathology, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
| | - Sonir Rauber Antonini
- Department of Pediatrics, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
| | - Margaret de Castro
- Department of Internal Medicine, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
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31
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Mendes ND, Fernandes A, Almeida GM, Santos LE, Selles MC, Lyra E Silva NM, Machado CM, Horta-Júnior JAC, Louzada PR, De Felice FG, Alves-Leon S, Marcondes J, Assirati JA, Matias CM, Klein WL, Garcia-Cairasco N, Ferreira ST, Neder L, Sebollela A. Free-floating adult human brain-derived slice cultures as a model to study the neuronal impact of Alzheimer's disease-associated Aβ oligomers. J Neurosci Methods 2018; 307:203-209. [PMID: 29859877 DOI: 10.1016/j.jneumeth.2018.05.021] [Citation(s) in RCA: 18] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 05/25/2018] [Accepted: 05/28/2018] [Indexed: 11/16/2022]
Abstract
BACKGROUND Slice cultures have been prepared from several organs. With respect to the brain, advantages of slice cultures over dissociated cell cultures include maintenance of the cytoarchitecture and neuronal connectivity. Slice cultures from adult human brain have been reported and constitute a promising method to study neurological diseases. Despite this potential, few studies have characterized in detail cell survival and function along time in short-term, free-floating cultures. NEW METHOD We used tissue from adult human brain cortex from patients undergoing temporal lobectomy to prepare 200 μm-thick slices. Along the period in culture, we evaluated neuronal survival, histological modifications, and neurotransmitter release. The toxicity of Alzheimer's-associated Aβ oligomers (AβOs) to cultured slices was also analyzed. RESULTS Neurons in human brain slices remain viable and neurochemically active for at least four days in vitro, which allowed detection of binding of AβOs. We further found that slices exposed to AβOs presented elevated levels of hyperphosphorylated Tau, a hallmark of Alzheimer's disease. COMPARISON WITH EXISTING METHOD(S) Although slice cultures from adult human brain have been previously prepared, this is the first report to analyze cell viability and neuronal activity in short-term free-floating cultures as a function of days in vitro. CONCLUSIONS Once surgical tissue is available, the current protocol is easy to perform and produces functional slices from adult human brain. These slice cultures may represent a preferred model for translational studies of neurodegenerative disorders when long term culturing in not required, as in investigations on AβO neurotoxicity.
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Affiliation(s)
- Niele D Mendes
- Dept. Biochemistry and Immunology, Ribeirao Preto Medical School, University of Sao Paulo, SP, Brazil; Dept. Pathology and Forensic Medicine, Ribeirao Preto Medical School, University of Sao Paulo, SP, Brazil
| | - Artur Fernandes
- Dept. Biochemistry and Immunology, Ribeirao Preto Medical School, University of Sao Paulo, SP, Brazil; Dept. Physiology, Ribeirão Preto Medical School, University of São Paulo, SP, Brazil
| | - Glaucia M Almeida
- Dept. Biochemistry and Immunology, Ribeirao Preto Medical School, University of Sao Paulo, SP, Brazil
| | - Luis E Santos
- Institute of Medical Biochemistry, Federal University of Rio de Janeiro, RJ, Brazil
| | - Maria Clara Selles
- Institute of Medical Biochemistry, Federal University of Rio de Janeiro, RJ, Brazil
| | - N M Lyra E Silva
- Institute of Medical Biochemistry, Federal University of Rio de Janeiro, RJ, Brazil
| | - Carla M Machado
- Department of Anatomy, Institute of Biosciences, São Paulo State University, SP, Brazil
| | - José A C Horta-Júnior
- Department of Anatomy, Institute of Biosciences, São Paulo State University, SP, Brazil
| | - Paulo R Louzada
- Institute of Biomedical Sciences, Federal University of Rio de Janeiro, RJ, Brazil
| | - Fernanda G De Felice
- Institute of Medical Biochemistry, Federal University of Rio de Janeiro, RJ, Brazil; Centre for Neuroscience Studies, Department of Biomedical and Molecular Sciences, Queen's University, Kingston, ON, Canada
| | - Soniza Alves-Leon
- Hospital Universitário Clementino Fraga Filho, Federal University of Rio de Janeiro, RJ, Brazil
| | - Jorge Marcondes
- Hospital Universitário Clementino Fraga Filho, Federal University of Rio de Janeiro, RJ, Brazil
| | - João Alberto Assirati
- Ribeirão Preto Medical School Clinical Hospital, University of São Paulo, SP, Brazil
| | - Caio M Matias
- Ribeirão Preto Medical School Clinical Hospital, University of São Paulo, SP, Brazil
| | - William L Klein
- Department of Neurobiology, Northwestern University, IL, USA
| | | | - Sergio T Ferreira
- Institute of Medical Biochemistry, Federal University of Rio de Janeiro, RJ, Brazil; Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, RJ, Brazil
| | - Luciano Neder
- Dept. Pathology and Forensic Medicine, Ribeirao Preto Medical School, University of Sao Paulo, SP, Brazil; Barretos Cancer Hospital, Barretos, SP, Brazil
| | - Adriano Sebollela
- Dept. Biochemistry and Immunology, Ribeirao Preto Medical School, University of Sao Paulo, SP, Brazil.
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32
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Ramalho FS, Yamamoto AY, da Silva LL, Figueiredo LTM, Rocha LB, Neder L, Teixeira SR, Apolinário LA, Ramalho LNZ, Silva DM, Coutinho CM, Melli PP, Augusto MJ, Santoro LB, Duarte G, Mussi-Pinhata MM. Congenital Zika Virus Infection Induces Severe Spinal Cord Injury. Clin Infect Dis 2018; 65:687-690. [PMID: 28444144 DOI: 10.1093/cid/cix374] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [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: 01/19/2017] [Accepted: 04/18/2017] [Indexed: 01/01/2023] Open
Abstract
We report 2 fatal cases of congenital Zika virus (ZIKV) infection. Brain anomalies, including atrophy of the cerebral cortex and brainstem, and cerebellar aplasia were observed. The spinal cord showed architectural distortion, severe neuronal loss, and microcalcifications. The ZIKV proteins and flavivirus-like particles were detected in cytoplasm of spinal neurons, and spinal cord samples were positive for ZIKV RNA.
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Affiliation(s)
- Fernando S Ramalho
- Department of Pathology, Ribeirão Preto Medical School, University of São Paulo, Avenida Bandeirantes 3900, Ribeirão Preto, Brazil
| | - Aparecida Y Yamamoto
- Department of Pediatrics, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
| | - Luis L da Silva
- Department of Cell and Molecular Biology, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
| | - Luiz T M Figueiredo
- Department of Medicine, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
| | - Lenaldo B Rocha
- Institute of Biological and Natural Sciences, Federal University of Triângulo Mineiro, Uberaba
| | - Luciano Neder
- Department of Pathology, Ribeirão Preto Medical School, University of São Paulo, Avenida Bandeirantes 3900, Ribeirão Preto, Brazil
| | - Sara R Teixeira
- Department of Medicine, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
| | - Letícia A Apolinário
- Department of Pathology, Ribeirão Preto Medical School, University of São Paulo, Avenida Bandeirantes 3900, Ribeirão Preto, Brazil
| | - Leandra N Z Ramalho
- Department of Pathology, Ribeirão Preto Medical School, University of São Paulo, Avenida Bandeirantes 3900, Ribeirão Preto, Brazil
| | - Deisy M Silva
- Department of Pathology, Ribeirão Preto Medical School, University of São Paulo, Avenida Bandeirantes 3900, Ribeirão Preto, Brazil
| | - Conrado M Coutinho
- Gynecology and Obstetrics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Patrícia P Melli
- Gynecology and Obstetrics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Marlei J Augusto
- Department of Pathology, Ribeirão Preto Medical School, University of São Paulo, Avenida Bandeirantes 3900, Ribeirão Preto, Brazil
| | - Ligia B Santoro
- Department of Pathology, Ribeirão Preto Medical School, University of São Paulo, Avenida Bandeirantes 3900, Ribeirão Preto, Brazil
| | - Geraldo Duarte
- Gynecology and Obstetrics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Marisa M Mussi-Pinhata
- Department of Pediatrics, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
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33
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Gomes D, Cucolicchio I, Mattos M, Serrano S, Reis R, Carloni A, Spina M, Polverini A, Pereira C, Neder L, Borges A. Is There a Correlation Between Overall Survival and the Mutation Profile of IDH1 and TERT in High Grade Glioma? A Brazilian Experience Results. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.773] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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34
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Melo DH, Mamede RCM, Neder L, Silva WA, Barros-Filho MC, Kowalski LP, Pinto CAL, Zago MA, Figueiredo DLA, Jungbluth AA. Expression of cancer/testis antigens MAGE-A, MAGE-C1, GAGE and CTAG1B in benign and malignant thyroid diseases. Oncol Lett 2017; 14:6485-6496. [PMID: 29163685 PMCID: PMC5688795 DOI: 10.3892/ol.2017.7072] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Accepted: 08/25/2016] [Indexed: 11/15/2022] Open
Abstract
Despite considerable advances in the understanding of thyroid gland biology, correctly diagnosing thyroid nodules and treating high-grade thyroid carcinoma remains challenging. Cancer/testis (CT) antigens have emerged as potential diagnostic tools as well as targets of potential cancer vaccinations. In the present study, a total of 117 patients who underwent surgical therapy for thyroid disease were available for analysis. The expression levels of melanoma-associated antigen (MAGE) A, MAGE-C1/CT7, cancer/testis antigen 1B (CTAG1B) and G antigen (GAGE) were analyzed by immunohistochemistry. None of the CT antigens were expressed in the normal thyroid or goiter. In papillary and follicular carcinoma, MAGE-A was present in 8.1% of cases, GAGE in 10.8% and CT/7MAGE-C1 and CTAG1B in 2.7% each. In medullary carcinoma, CT antigen expression was as follows: MAGE-A in 42.9% of patients; MAGE-C1/CT7 in 46.5%; GAGE in 92.9%; and CTAG1B in 3.6%. A statistically significant association was observed between the expression of G MAGE-C1/CT7 and patient gender as well as patient clinical stage (P=0.029 and 0.031, respectively). In poorly differentiated and anaplastic carcinoma cases, CT antigen expression was as follows: MAGE-A in 61.8% of cases; MAGE-C1 in 57.1%; GAGE in 66.7%; and CTAG1B in 14.4%. There was a statistically significant association between expression of GAGE and gender (P=0.043). However, there was no association between CT antigen expression and patient survival in any of the tumor entities analyzed. The current study identified a distinct expression pattern of CT antigens in malignant thyroid tumors indicating that CT antigens have the potential to outperform existing thyroid cancer biomarkers. The prevalence of CT antigens in high-grade carcinomas suggests that they serve an important biological role within malignant tumors.
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Affiliation(s)
- Daniel Hardy Melo
- School of Medicine, Federal University of Ceara, Sobral, CE 62042-280, Brazil
| | - Rui Celso Martins Mamede
- Department of Ophthalmology, Otorhinolaryngology and Head and Neck Surgery, Ribeirão Preto Medical School, University of São Paulo, Center for Cell Based Therapy, CEPID/FAPESP, Ribeirão Preto, SP 14049-900, Brazil
| | - Luciano Neder
- Department of Clinical Pathology, Ribeirão Preto Medical School, University of São Paulo, Center for Cell Based Therapy, CEPID/FAPESP, Ribeirão Preto, SP 14049-900, Brazil
| | - Wilson Araújo Silva
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Center for Cell Based Therapy, CEPID/FAPESP, Ribeirão Preto, SP 14049-900, Brazil
| | - Mateus Camargo Barros-Filho
- Department of Head and Neck Surgery and Otorhinolaryngology, A.C. Camargo Cancer Center, São Paulo, SP 01509-010, Brazil
| | - Luiz Paulo Kowalski
- Department of Head and Neck Surgery and Otorhinolaryngology, A.C. Camargo Cancer Center, São Paulo, SP 01509-010, Brazil
| | | | - Marco Antônio Zago
- Department of Internal Medicine, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP 14049-900, Brazil
| | | | - Achim A Jungbluth
- Division of Pathology Diagnostic Services, Cytology, Memorial Sloan-Kettering Cancer Center, New York, NY 10021, USA
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de Sousa JF, Torrieri R, Serafim RB, Di Cristofaro LFM, Escanfella FD, Ribeiro R, Zanette DL, Paçó-Larson ML, da Silva WA, Tirapelli DPDC, Neder L, Carlotti CG, Valente V. Expression signatures of DNA repair genes correlate with survival prognosis of astrocytoma patients. Tumour Biol 2017; 39:1010428317694552. [PMID: 28378638 DOI: 10.1177/1010428317694552] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Astrocytomas are the most common primary brain tumors. They are very resistant to therapies and usually progress rapidly to high-grade lesions. Here, we investigated the potential role of DNA repair genes in astrocytoma progression and resistance. To this aim, we performed a polymerase chain reaction array-based analysis focused on DNA repair genes and searched for correlations between expression patters and survival prognoses. We found 19 genes significantly altered. Combining these genes in all possible arrangements, we found 421 expression signatures strongly associated with poor survival. Importantly, five genes (DDB2, EXO1, NEIL3, BRCA2, and BRIP1) were independently correlated with worse prognoses, revealing single-gene signatures. Moreover, silencing of EXO1, which is remarkably overexpressed, promoted faster restoration of double-strand breaks, while NEIL3 knockdown, also highly overexpressed, caused an increment in DNA damage and cell death after irradiation of glioblastoma cells. These results disclose the importance of DNA repair pathways for the maintenance of genomic stability of high-grade astrocytomas and suggest that EXO1 and NEIL3 overexpression confers more efficiency for double-strand break repair and resistance to reactive oxygen species, respectively. Thereby, we highlight these two genes as potentially related with tumor aggressiveness and promising candidates as novel therapeutic targets.
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Affiliation(s)
- Juliana Ferreira de Sousa
- 1 Department of Clinical Analysis, Faculty of Pharmaceutical Sciences of Araraquara, University of São Paulo State, Araraquara, Brazil.,2 Department of Cellular and Molecular Biology, Ribeirão Preto Medical School, University of São Paulo (USP), Ribeirão Preto, Brazil
| | - Raul Torrieri
- 3 FAEPA, Center for Medical Genomics (CMG) of the Clinical Hospital, Ribeirão Preto Medical School, University of São Paulo (USP), Ribeirão Preto, Brazil
| | - Rodolfo Bortolozo Serafim
- 1 Department of Clinical Analysis, Faculty of Pharmaceutical Sciences of Araraquara, University of São Paulo State, Araraquara, Brazil.,2 Department of Cellular and Molecular Biology, Ribeirão Preto Medical School, University of São Paulo (USP), Ribeirão Preto, Brazil
| | - Luis Fernando Macedo Di Cristofaro
- 1 Department of Clinical Analysis, Faculty of Pharmaceutical Sciences of Araraquara, University of São Paulo State, Araraquara, Brazil.,2 Department of Cellular and Molecular Biology, Ribeirão Preto Medical School, University of São Paulo (USP), Ribeirão Preto, Brazil
| | - Fábio Dalbon Escanfella
- 2 Department of Cellular and Molecular Biology, Ribeirão Preto Medical School, University of São Paulo (USP), Ribeirão Preto, Brazil
| | - Rodrigo Ribeiro
- 2 Department of Cellular and Molecular Biology, Ribeirão Preto Medical School, University of São Paulo (USP), Ribeirão Preto, Brazil
| | - Dalila Lucíola Zanette
- 4 Department of Genetics, Ribeirão Preto Medical School, University of São Paulo (USP), Ribeirão Preto, Brazil.,5 Regional Blood Center of Ribeirão Preto and Center for Cell-Based Therapy-CEPID/FAPESP, Ribeirão Preto, Brazil.,6 National Institute of Science and Technology in Stem cell and Cell Therapy, Ribeirão Preto, Brazil
| | - Maria Luisa Paçó-Larson
- 2 Department of Cellular and Molecular Biology, Ribeirão Preto Medical School, University of São Paulo (USP), Ribeirão Preto, Brazil
| | - Wilson Araujo da Silva
- 4 Department of Genetics, Ribeirão Preto Medical School, University of São Paulo (USP), Ribeirão Preto, Brazil.,5 Regional Blood Center of Ribeirão Preto and Center for Cell-Based Therapy-CEPID/FAPESP, Ribeirão Preto, Brazil.,6 National Institute of Science and Technology in Stem cell and Cell Therapy, Ribeirão Preto, Brazil.,7 Center for Integrative Systems Biology (CISBi), NAP/USP, Ribeirão Preto, Brazil
| | | | - Luciano Neder
- 9 Department of Pathology, Ribeirão Preto Medical School, University of São Paulo (USP), Ribeirão Preto, Brazil
| | - Carlos Gilberto Carlotti
- 7 Center for Integrative Systems Biology (CISBi), NAP/USP, Ribeirão Preto, Brazil.,8 Department of Surgery and Anatomy, Ribeirão Preto Medical School, University of São Paulo (USP), Ribeirão Preto, Brazil
| | - Valeria Valente
- 1 Department of Clinical Analysis, Faculty of Pharmaceutical Sciences of Araraquara, University of São Paulo State, Araraquara, Brazil.,2 Department of Cellular and Molecular Biology, Ribeirão Preto Medical School, University of São Paulo (USP), Ribeirão Preto, Brazil.,7 Center for Integrative Systems Biology (CISBi), NAP/USP, Ribeirão Preto, Brazil
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36
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Pezuk JA, Brassesco MS, de Oliveira RS, Machado HR, Neder L, Scrideli CA, Tone LG. PLK1-associated microRNAs are correlated with pediatric medulloblastoma prognosis. Childs Nerv Syst 2017; 33:609-615. [PMID: 28283778 DOI: 10.1007/s00381-017-3366-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Accepted: 02/09/2017] [Indexed: 12/21/2022]
Abstract
PURPOSE Medulloblastoma (MB) is the most common malignant tumor of the central nervous system (CNS) in children. Despite its relative good survival rates, treatment can cause long time sequels and may impair patients' lifespan and quality, making the search for new treatment options still necessary. Polo like kinases (PLKs) constitute a five-member serine/threonine kinases family (PLK 1-5) that regulates different stages during cell cycle. Abnormal PLKs expression has been observed in several cancer types, including MB. As gene regulators, miRNAs have also been described with variable expression in cancer. METHODS We evaluated gene expression profiles of all PLK family members and related miRNAs (miR-100, miR-126, miR-219, and miR-593*) in MB cell lines and tumor samples. RESULTS RT-qPCR analysis revealed increased levels of PLK1-4 in all cell lines and in most MB samples, while PLK5 was found underexpressed. In parallel, miR-100 was also found upregulated while miR-129, miR-216, and miR-593* were decreased in MB cell lines. Variable miRNAs expression patterns were observed in MB samples. However, a correlation between miR-100 and PLK4 expression was observed, and associations between miR-100, miR-126, and miR-219 expression and overall and event free survival were also evinced in our cohort. Moreover, despite the lack of association with clinico-pathological features, when comparing primary tumors to those relapsed, we found a consistent decrease on PLK2, miR-219, and miR-598* and an increase on miR-100 and miR-126. CONCLUSION Specific dysregulation on PLKs and associated miRNAs may be important in MB and can be used to predict prognosis. Although miRNAs sequences are fundamental to predict its target, the cell type may also be consider once that mRNA repertoire can define different roles for specific miRNA in a given cell.
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Affiliation(s)
- Julia Alejandra Pezuk
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil.
- Molecular Oncology Center, Hospital Sírio-Libanês, São Paulo, Brazil.
| | - María Sol Brassesco
- Department of Biology, Faculty of Philosophy, Sciences and Letters at Ribeirão Preto, University of São Paulo, São Paulo, Brazil
| | | | | | - Luciano Neder
- Department of Pathology, University of São Paulo, São Paulo, Brazil
| | - Carlos Alberto Scrideli
- Department of Pediatrics, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
| | - Luiz Gonzaga Tone
- Department of Pediatrics, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
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Schwartzmann PV, Ramalho LNZ, Neder L, Vilar FC, Ayub-Ferreira SM, Romeiro MF, Takayanagui OM, Dos Santos AC, Schmidt A, Figueiredo LTM, Arena R, Simões MV. Zika Virus Meningoencephalitis in an Immunocompromised Patient. Mayo Clin Proc 2017; 92:460-466. [PMID: 28259231 DOI: 10.1016/j.mayocp.2016.12.019] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Revised: 11/02/2016] [Accepted: 12/22/2016] [Indexed: 11/24/2022]
Abstract
The World Health Organization considers the Zika virus (ZIKV) outbreak in the Americas a global public health emergency. The neurologic complications due to ZIKV infection comprise microcephaly, meningoencephalitis, and Guillain-Barré syndrome. We describe a fatal case of an adult patient receiving an immunosuppressive regimen following heart transplant. The patient was admitted with acute neurologic impairment and experienced progressive hemodynamic instability and mental deterioration that finally culminated in death. At autopsy, a pseudotumoral form of ZIKV meningoencephalitis was confirmed. Zika virus infection was documented by reverse trancriptase-polymerase chain reaction, immunohistochemistry, and immunofluorescence and electron microscopy of the brain parenchyma and cerebral spinal fluid. The sequencing of the viral genome in this patient confirmed a Brazilian ZIKV strain. In this case, central nervous system involvement and ZIKV propagation to other organs in a disseminated pattern is quite similar to that observed in other fatal Flaviviridae viral infections.
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Affiliation(s)
- Pedro V Schwartzmann
- Cardiology Centre, Internal Medicine Department, Medical School of Ribeirão Preto, University of São Paulo, Brazil.
| | - Leandra N Z Ramalho
- Cardiology Centre, Internal Medicine Department, Medical School of Ribeirão Preto, University of São Paulo, Brazil
| | - Luciano Neder
- Cardiology Centre, Internal Medicine Department, Medical School of Ribeirão Preto, University of São Paulo, Brazil
| | - Fernando C Vilar
- Cardiology Centre, Internal Medicine Department, Medical School of Ribeirão Preto, University of São Paulo, Brazil
| | - Sílvia M Ayub-Ferreira
- Cardiology Centre, Internal Medicine Department, Medical School of Ribeirão Preto, University of São Paulo, Brazil
| | - Marília F Romeiro
- Cardiology Centre, Internal Medicine Department, Medical School of Ribeirão Preto, University of São Paulo, Brazil
| | - Osvaldo M Takayanagui
- Cardiology Centre, Internal Medicine Department, Medical School of Ribeirão Preto, University of São Paulo, Brazil
| | - Antonio C Dos Santos
- Cardiology Centre, Internal Medicine Department, Medical School of Ribeirão Preto, University of São Paulo, Brazil
| | - André Schmidt
- Cardiology Centre, Internal Medicine Department, Medical School of Ribeirão Preto, University of São Paulo, Brazil
| | - Luiz T M Figueiredo
- Cardiology Centre, Internal Medicine Department, Medical School of Ribeirão Preto, University of São Paulo, Brazil
| | - Ross Arena
- Department of Physical Therapy, College of Applied Health Sciences, University of Illinois at Chicago, Chicago, IL
| | - Marcus V Simões
- Cardiology Centre, Internal Medicine Department, Medical School of Ribeirão Preto, University of São Paulo, Brazil
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38
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Nawaz M, Fatima F, Nazarenko I, Ekström K, Murtaza I, Anees M, Sultan A, Neder L, Camussi G, Valadi H, Squire JA, Kislinger T. Extracellular vesicles in ovarian cancer: applications to tumor biology, immunotherapy and biomarker discovery. Expert Rev Proteomics 2016; 13:395-409. [PMID: 26973172 DOI: 10.1586/14789450.2016.1165613] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
In recent years there has been tremendous interest in both the basic biology and applications of extracellular vesicles (EVs) in translational cancer research. This includes a better understanding of their biogenesis and mechanisms of selective cargo packaging, their precise roles in horizontal communication, and their application as non-invasive biomarkers. The rapid advances in next-generation omics technologies are the driving forces for these discoveries. In this review, the authors focus on recent results of EV research in ovarian cancer. A deeper understanding of ovarian cancer-derived EVs, the types of cargo molecules and their biological roles in cancer growth, metastases and drug resistance, could have significant impact on the discovery of novel biomarkers and innovative therapeutics. Insights into the role of EVs in immune regulation could lead to novel approaches built on EV-based immunotherapy.
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Affiliation(s)
- Muhammad Nawaz
- a Department of Pathology and Forensic Medicine, Ribeirao Preto School of Medicine , University of Sao Paulo , Sao Paulo , Brazil.,b Department of Rheumatology and Inflammation Research , Sahlgrenska Academy at the University of Gothenburg , Guldhedsgatan Sweden
| | - Farah Fatima
- a Department of Pathology and Forensic Medicine, Ribeirao Preto School of Medicine , University of Sao Paulo , Sao Paulo , Brazil.,b Department of Rheumatology and Inflammation Research , Sahlgrenska Academy at the University of Gothenburg , Guldhedsgatan Sweden
| | - Irina Nazarenko
- c Institute for Environmental Health Sciences and Hospital Infection Control , University Medical Centre Freiburg , Freiburg im Breisgau , Germany
| | - Karin Ekström
- d Department of Biomaterials , Sahlgrenska Academy at the University of Gothenburg , Gothenburg , Sweden.,e BIOMATCELL VINN Excellence Centre of Biomaterials and Cell Therapy , Gothenburg , Sweden
| | - Iram Murtaza
- f Department of Biochemistry, Faculty of Biological Sciences , Quaid-i-Azam University Islamabad , Islamabad , Pakistan
| | - Mariam Anees
- f Department of Biochemistry, Faculty of Biological Sciences , Quaid-i-Azam University Islamabad , Islamabad , Pakistan
| | - Aneesa Sultan
- f Department of Biochemistry, Faculty of Biological Sciences , Quaid-i-Azam University Islamabad , Islamabad , Pakistan
| | - Luciano Neder
- a Department of Pathology and Forensic Medicine, Ribeirao Preto School of Medicine , University of Sao Paulo , Sao Paulo , Brazil
| | - Giovanni Camussi
- g Department of Medical Sciences and Molecular Biotechnology Centre , University of Torino , Torino , Italy
| | - Hadi Valadi
- b Department of Rheumatology and Inflammation Research , Sahlgrenska Academy at the University of Gothenburg , Guldhedsgatan Sweden
| | - Jeremy A Squire
- a Department of Pathology and Forensic Medicine, Ribeirao Preto School of Medicine , University of Sao Paulo , Sao Paulo , Brazil
| | - Thomas Kislinger
- h Princess Margaret Cancer Centre and Department of Medical Biophysics , University of Toronto , Toronto , ON , Canada
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39
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Andrade AF, Borges KS, Suazo VK, Geron L, Corrêa CAP, Castro-Gamero AM, de Vasconcelos EJR, de Oliveira RS, Neder L, Yunes JA, Aguiar SDS, Scrideli CA, Tone LG. Erratum to: The DNA methyltransferase inhibitor zebularine exerts antitumor effects and reveals BATF2 as a poor prognostic marker for childhood medulloblastoma. Invest New Drugs 2016; 35:124. [PMID: 27900530 DOI: 10.1007/s10637-016-0412-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Augusto Faria Andrade
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo (USP), Avenida Bandeirantes 3900, 14048-900, Ribeirão Preto, SP, Brazil. .,Departamento de Genética, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Avenida Bandeirantes 3900, 14048-900, Ribeirão Preto, SP, Brazil.
| | - Kleiton Silva Borges
- Department of Pediatrics - Ribeirão Preto Medical School, University of São Paulo (USP), São Paulo, Brazil
| | - Veridiana Kiill Suazo
- Department of Pediatrics - Ribeirão Preto Medical School, University of São Paulo (USP), São Paulo, Brazil
| | - Lenisa Geron
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo (USP), Avenida Bandeirantes 3900, 14048-900, Ribeirão Preto, SP, Brazil
| | | | | | | | | | - Luciano Neder
- Department of Pathology, Ribeirão Preto Medical School, USP, São Paulo, Brazil
| | | | | | - Carlos Alberto Scrideli
- Department of Pediatrics - Ribeirão Preto Medical School, University of São Paulo (USP), São Paulo, Brazil
| | - Luiz Gonzaga Tone
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo (USP), Avenida Bandeirantes 3900, 14048-900, Ribeirão Preto, SP, Brazil.,Department of Pediatrics - Ribeirão Preto Medical School, University of São Paulo (USP), São Paulo, Brazil
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Abstract
In pituitary tumors, P27(CDKN1B) is underexpressed. We aimed to clarify whether translational regulation underlies this phenomenon. This study evaluated the expression of P27/CDKN1B, its targets (CCNE1, CDK2) and translational regulators (DKC1, RPS13, miR221, miR222) and screened for DKC1 variants in sporadic pituitary adenomas. Samples were obtained during transsphenoidal surgery from 48 patients with pituitary adenomas: 10 ACTH-, 17 GH-secreting, and 21 nonfunctioning (NFPA). The control group comprised 7 normal pituitaries (NP) obtained during autopsies. Gene expression was assessed by RT-PCR and protein expression by immunohistochemistry. The 15 exons of DKC1 were sequenced. P27 protein underexpression was observed in all adenomas subtypes (p=0.001). CCNE1 mRNA (p=0.01) overexpression, but not protein, was observed in NFPA. No differential gene expression among groups was observed in CDKN1B regulators RPS13 (p=0.23) and DKC1 (p=0.34). The expression of miR221 and miR222 was similar among tumors and NP. Frequent DKC1 variants (SNPs) were found in exon 14 and in the 3'-UTR in similar frequency to NCBI-dsSNP databases. We also observed rare DKC1 variants in 11% of the studied tumor samples, indicating a high prevalence in pituitary adenomas, however, in silico studies failed to indicate deleterious effects. The high frequency of DKC1 variants may influence, in some extent, pituitary tumors development, without clear role in its tumorigenesis. Our data reinforce the P27 underexpression in pituitary adenomas and provide further evidence of the post-translational machinery involvement, although this phenomenon cannot be explained either by mis-expression of P27 translational regulators - DKC1, RPS13, miR221, miR222 - or directly by DKC1 mutations.
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Affiliation(s)
- C S Martins
- Department of Internal Medicine, Ribeirao Preto Medical School, University of Sao Paulo, Sao Paulo, Brazil
| | - R C Camargo
- Department of Physiology, Ribeirao Preto Medical School, University of Sao Paulo, Sao Paulo, Brazil
| | - F P Saggioro
- Department of Pathology, Ribeirao Preto Medical School, University of Sao Paulo, Sao Paulo, Brazil
| | - L Neder
- Department of Pathology, Ribeirao Preto Medical School, University of Sao Paulo, Sao Paulo, Brazil
| | - H R Machado
- Department of Surgery and Anatomy, Ribeirao Preto Medical School, University of Sao Paulo, Brazil
| | - A C Moreira
- Department of Internal Medicine, Ribeirao Preto Medical School, University of Sao Paulo, Sao Paulo, Brazil
| | - M de Castro
- Department of Internal Medicine, Ribeirao Preto Medical School, University of Sao Paulo, Sao Paulo, Brazil
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41
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Andrade AF, Borges KS, Suazo VK, Geron L, Corrêa CAP, Castro-Gamero AM, de Vasconcelos EJR, de Oliveira RS, Neder L, Yunes JA, Dos Santos Aguiar S, Scrideli CA, Tone LG. The DNA methyltransferase inhibitor zebularine exerts antitumor effects and reveals BATF2 as a poor prognostic marker for childhood medulloblastoma. Invest New Drugs 2016; 35:26-36. [PMID: 27785591 DOI: 10.1007/s10637-016-0401-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [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: 08/18/2016] [Accepted: 10/20/2016] [Indexed: 12/11/2022]
Abstract
Medulloblastoma (MB) is the most common solid tumor among pediatric patients and corresponds to 20 % of all pediatric intracranial tumors in this age group. Its treatment currently involves significant side effects. Epigenetic changes such as DNA methylation may contribute to its development and progression. DNA methyltransferase (DNMT) inhibitors have shown promising anticancer effects. The agent Zebularine acts as an inhibitor of DNA methylation and shows low toxicity and high efficacy, being a promising adjuvant agent for anti-cancer chemotherapy. Several studies have reported its effects on different types of tumors; however, there are no studies reporting its effects on MB. We analyzed its potential anticancer effects in four pediatric MB cell lines. The treatment inhibited proliferation and clonogenicity, increased the apoptosis rate and the number of cells in the S phase (p < 0.05), as well as the expression of p53, p21, and Bax, and decreased cyclin A, Survivin and Bcl-2 proteins. In addition, the combination of zebularine with the chemotherapeutic agents vincristine and cisplatin resulted in synergism and antagonism, respectively. Zebularine also modulated the activation of the SHH pathway, reducing SMO and GLI1 levels and one of its targets, PTCH1, without changing SUFU levels. A microarray analysis revealed different pathways modulated by the drug, including the Toll-Like Receptor pathway and high levels of the BATF2 gene. The low expression of this gene was associated with a worse prognosis in MB. Taken together, these data suggest that Zebularine may be a potential drug for further in vivo studies of MB treatment.
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Affiliation(s)
- Augusto Faria Andrade
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo (USP), Avenida Bandeirantes 3900, 14048-900, Ribeirão Preto, SP, Brazil.
| | - Kleiton Silva Borges
- Department of Pediatrics - Ribeirão Preto Medical School, University of São Paulo (USP), São Paulo, Brazil
| | - Veridiana Kiill Suazo
- Department of Pediatrics - Ribeirão Preto Medical School, University of São Paulo (USP), São Paulo, Brazil
| | - Lenisa Geron
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo (USP), Avenida Bandeirantes 3900, 14048-900, Ribeirão Preto, SP, Brazil
| | | | | | | | | | - Luciano Neder
- Department of Pathology, Ribeirão Preto Medical School, USP, São Paulo, Brazil
| | | | | | - Carlos Alberto Scrideli
- Department of Pediatrics - Ribeirão Preto Medical School, University of São Paulo (USP), São Paulo, Brazil
| | - Luiz Gonzaga Tone
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo (USP), Avenida Bandeirantes 3900, 14048-900, Ribeirão Preto, SP, Brazil.,Department of Pediatrics - Ribeirão Preto Medical School, University of São Paulo (USP), São Paulo, Brazil
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42
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Stetson LC, Ferreira de Souza C, Maistro Malta T, Sarraf Sabedot T, Ostrom Q, Liao P, Pretti da Cunha Tirapelli D, Neder L, Gilberto Carlotti C, Akbani R, Salama S, Poisson L, Brat D, Noushmehr H, Barnholtz-Sloan J. Abstract 780: Multi-omic profiling of gliomas reveals distinct DNA methylation changes at tumor recurrence. Cancer Res 2016. [DOI: 10.1158/1538-7445.am2016-780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Varying possibilities of tumor relapse for lower grade glioma (LGG, WHO grade II and III) and glioblastoma (GBM, WHO grade IV) have led to heterogenous clinical outcomes for patients. Our current study aims to establish a molecular profile of recurrence of matched primary and recurrent LGG (n = 28) and recurrent GBM (n = 24) tumor samples. The Cancer Genome Atlas (TCGA) has comprehensively profiled these matched primary/recurrent tumor sets; whole genomes, coding exomes, methylomes, and transcriptomes have been sequenced, and the samples have undergone targeted profiling of the proteome. While unsupervised analysis techniques have not led to a clear recurrence signature, supervised analysis methods have revealed interesting patterns. Protein profiling has shown that recurrent gliomas retain the overall molecular signature of their primary counterpart, but the DNA damage response, apoptosis and RTK pathways are downregulated in the recurrent gliomas, in contrast to RAS/MAPK, PI3K/AKT, and EMT pathways, which are upregulated. Whole genome sequencing and rearrangement analysis have revealed increased genomic complexity among most recurrent gliomas as well as new fusions of interest in recurrent LGG samples (PTPRZ1-MET and involving ATRX). Using genome-wide Illumina HumanMethylation 450K data we observed that 78.6% of LGGs showed depletion of DNA methylation at recurrence and 50% of GBM tumors showed an enrichment of DNA methylation at recurrence. Patient centric enrichment analysis allowed us to discover a candidate biological subgroup characterized by a subset of LGG recurrences (50%) exhibiting an aberrant CpG methylation loss at inintergenic opensea regions when compared with canonical CpG islands and shores (fold > 1.3 and confidence intervals of 99%). Importantly, inspection of CpG sites significantly hypomethylated at openseas showed that this pronounced epigenetic signature maps to candidate TSS distal and hypomethylated enhancers. The gene-targets of these hypomethylated CpG sites show a corresponding up-regulation of expression. Pathway analysis has demonstrated that these upregulated genes are involved in cellular growth and proliferation, cellular function and maintenance, and cell cycle regulation. Our results provide evidence that DNA methylation may represent a stable signature of glioma recurrence and that the crosstalk between DNA hypomethylation at openseas and chromosomal instability may be involved in glioma recurrence. We plan to further integrate our findings between data types and correlate with treatment and patient clinical outcome.
Citation Format: Lindsay C. Stetson, Camila Ferreira de Souza, Tathiane Maistro Malta, Thais Sarraf Sabedot, Quinn Ostrom, Peter Liao, Daniela Pretti da Cunha Tirapelli, Luciano Neder, Carlos Gilberto Carlotti, Rehan Akbani, Sofie Salama, Laila Poisson, Daniel Brat, The Cancer Genome Atlas Network, Houtan Noushmehr, Jill Barnholtz-Sloan. Multi-omic profiling of gliomas reveals distinct DNA methylation changes at tumor recurrence. [abstract]. In: Proceedings of the 107th Annual Meeting of the American Association for Cancer Research; 2016 Apr 16-20; New Orleans, LA. Philadelphia (PA): AACR; Cancer Res 2016;76(14 Suppl):Abstract nr 780.
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Affiliation(s)
| | | | | | | | - Quinn Ostrom
- 1Case Western Reserve University School of Medicine, Cleveland, OH
| | - Peter Liao
- 1Case Western Reserve University School of Medicine, Cleveland, OH
| | | | - Luciano Neder
- 2Ribeirão Preto Medical School, University of Sao Paulo, Brazil
| | | | - Rehan Akbani
- 3University of Texas, MD Anderson Cancer Center, TX
| | | | | | - Daniel Brat
- 6Winship Cancer Institute of Emory University, GA
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Peixoto Lira RC, Fedatto PF, Marco Antonio DS, Leal LF, Martinelli CE, de Castro M, Tucci S, Neder L, Ramalho L, Seidinger AL, Cardinalli I, Mastellaro MJ, Yunes JA, Brandalise SR, Tone LG, Rauber Antonini SR, Scrideli CA. IGF2 and IGF1R in pediatric adrenocortical tumors: roles in metastasis and steroidogenesis. Endocr Relat Cancer 2016; 23:481-93. [PMID: 27185872 DOI: 10.1530/erc-15-0426] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Accepted: 05/16/2016] [Indexed: 01/01/2023]
Abstract
Deregulation of the IGF system observed in human tumors indicates a role in malignant cell transformation and in tumor cell proliferation. Although overexpression of the IGF2 and IGF1R genes was described in adrenocortical tumors (ACTs), few studies reported their profiles in pediatric ACTs. In this study, the IGF2 and IGF1R expression was evaluated by RT-qPCR according to the patient's clinical/pathological features in 60 pediatric ACT samples, and IGF1R protein was investigated in 45 samples by immunohistochemistry (IHC). Whole transcriptome and functional assays were conducted after IGF1R inhibition with OSI-906 in NCI-H295A cell line. Significant IGF2 overexpression was found in tumor samples when compared with non-neoplastic samples (P<0.001), significantly higher levels of IGF1R in patients with relapse/metastasis (P=0.031) and moderate/strong IGF1R immunostaining in 62.2% of ACTs, but no other relationship with patient survival and clinical/pathological features was observed. OSI-906 treatment downregulated genes associated with MAPK activity, induced limited reduction of cell viability and increased the apoptosis rate. After 24h, the treatment also decreased the expression of genes related to the steroid biosynthetic process, the protein levels of the steroidogenic acute regulatory protein (STAR), and androgen secretion in cell medium, supporting the role of IGF1R in steroidogenesis of adrenocortical carcinoma cells. Our data showed that the IGF1R overexpression could be indicative of aggressive ACTs in children. However, in vitro treatments with high concentrations of OSI-906 (>1μM) showed limited reduction of cell viability, suggesting that OSI-906 alone could not be a suitable therapy to abolish carcinoma cell growth.
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Affiliation(s)
- Régia Caroline Peixoto Lira
- Department of PediatricsRibeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, São Paulo, Brazil
| | - Paola Fernanda Fedatto
- Department of PediatricsRibeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, São Paulo, Brazil
| | | | - Letícia Ferro Leal
- Department of PediatricsRibeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, São Paulo, Brazil
| | - Carlos Eduardo Martinelli
- Department of PediatricsRibeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, São Paulo, Brazil
| | - Margaret de Castro
- Department of Internal MedicineRibeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, São Paulo, Brazil
| | - Silvio Tucci
- Department of SurgeryRibeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, São Paulo, Brazil
| | - Luciano Neder
- Department of PathologyRibeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, São Paulo, Brazil
| | - Leandra Ramalho
- Department of PathologyRibeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, São Paulo, Brazil
| | - Ana Luiza Seidinger
- Boldrini Children CenterState University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Izilda Cardinalli
- Boldrini Children CenterState University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Maria José Mastellaro
- Boldrini Children CenterState University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - José Andres Yunes
- Boldrini Children CenterState University of Campinas (UNICAMP), Campinas, São Paulo, Brazil State University of Campinas (UNICAMP)CampinasSão Paulo, Brazil
| | - Silvia Regina Brandalise
- Boldrini Children CenterState University of Campinas (UNICAMP), Campinas, São Paulo, Brazil State University of Campinas (UNICAMP)CampinasSão Paulo, Brazil
| | - Luiz Gonzaga Tone
- Department of PediatricsRibeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, São Paulo, Brazil
| | | | - Carlos Alberto Scrideli
- Department of PediatricsRibeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, São Paulo, Brazil
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Batista R, Cruvinel-Carloni A, Vinagre J, Peixoto J, Catarino TA, Campanella NC, Menezes W, Becker AP, de Almeida GC, Matsushita MM, Clara C, Neder L, Viana-Pereira M, Honavar M, Castro L, Lopes JM, Carvalho B, Vaz RM, Máximo V, Soares P, Sobrinho-Simões M, Reis RM, Lima J. The prognostic impact of TERT
promoter mutations in glioblastomas is modified by the rs2853669 single nucleotide polymorphism. Int J Cancer 2016; 139:414-23. [DOI: 10.1002/ijc.30057] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Revised: 12/22/2015] [Accepted: 02/01/2016] [Indexed: 01/18/2023]
Affiliation(s)
- Rui Batista
- Cancer Signaling and Metabolism Group, Instituto de Investigação e Inovação em Saúde, Universidade do Porto; Portugal
- Cancer Signaling and Metabolism Group, Institute of Molecular Pathology and Immunology of the University of Porto (IPATIMUP); Portugal
| | | | - João Vinagre
- Cancer Signaling and Metabolism Group, Instituto de Investigação e Inovação em Saúde, Universidade do Porto; Portugal
- Cancer Signaling and Metabolism Group, Institute of Molecular Pathology and Immunology of the University of Porto (IPATIMUP); Portugal
- Institute of Biomedical Sciences of Abel Salazar, University of Porto; Portugal
| | - Joana Peixoto
- Cancer Signaling and Metabolism Group, Instituto de Investigação e Inovação em Saúde, Universidade do Porto; Portugal
- Cancer Signaling and Metabolism Group, Institute of Molecular Pathology and Immunology of the University of Porto (IPATIMUP); Portugal
| | - Telmo A. Catarino
- Cancer Signaling and Metabolism Group, Instituto de Investigação e Inovação em Saúde, Universidade do Porto; Portugal
- Cancer Signaling and Metabolism Group, Institute of Molecular Pathology and Immunology of the University of Porto (IPATIMUP); Portugal
| | | | - Weder Menezes
- Molecular Oncology Research Center; Barretos Cancer Hospital; São Paulo Brazil
| | - Aline Paixão Becker
- Molecular Oncology Research Center; Barretos Cancer Hospital; São Paulo Brazil
- Ribeirão Preto School of Medicine; University of São Paulo; Brazil
| | | | | | - Carlos Clara
- Department of Neurosurgery; Barretos Cancer Hospital; São Paulo Brazil
| | - Luciano Neder
- Ribeirão Preto School of Medicine; University of São Paulo; Brazil
| | - Marta Viana-Pereira
- Life and Health Sciences Research Institute (ICVS), Health Sciences School, University of Minho; Braga Portugal
- ICVS/3B's-PT Government Associate Laboratory; Braga/Guimarães Portugal
| | - Mrinalini Honavar
- Department of Pathology; Hospital Pedro Hispano; Matosinhos Portugal
| | - Lígia Castro
- Department of Pathology; Centro Hospitalar de S. João; Porto Portugal
| | - José Manuel Lopes
- Department of Pathology; Centro Hospitalar de S. João; Porto Portugal
| | - Bruno Carvalho
- Department of Neurosurgery; Centro Hospitalar de S. João; Porto Portugal
- Medical Faculty of the University of Porto; Portugal
| | - Rui Manuel Vaz
- Department of Neurosurgery; Centro Hospitalar de S. João; Porto Portugal
- Medical Faculty of the University of Porto; Portugal
- Neurosciences Department; CUF Hospital; Porto Portugal
| | - Valdemar Máximo
- Cancer Signaling and Metabolism Group, Instituto de Investigação e Inovação em Saúde, Universidade do Porto; Portugal
- Cancer Signaling and Metabolism Group, Institute of Molecular Pathology and Immunology of the University of Porto (IPATIMUP); Portugal
- Medical Faculty of the University of Porto; Portugal
| | - Paula Soares
- Cancer Signaling and Metabolism Group, Instituto de Investigação e Inovação em Saúde, Universidade do Porto; Portugal
- Cancer Signaling and Metabolism Group, Institute of Molecular Pathology and Immunology of the University of Porto (IPATIMUP); Portugal
- Medical Faculty of the University of Porto; Portugal
| | - Manuel Sobrinho-Simões
- Cancer Signaling and Metabolism Group, Instituto de Investigação e Inovação em Saúde, Universidade do Porto; Portugal
- Cancer Signaling and Metabolism Group, Institute of Molecular Pathology and Immunology of the University of Porto (IPATIMUP); Portugal
- Department of Pathology; Centro Hospitalar de S. João; Porto Portugal
- Medical Faculty of the University of Porto; Portugal
| | - Rui Manuel Reis
- Molecular Oncology Research Center; Barretos Cancer Hospital; São Paulo Brazil
- Life and Health Sciences Research Institute (ICVS), Health Sciences School, University of Minho; Braga Portugal
- ICVS/3B's-PT Government Associate Laboratory; Braga/Guimarães Portugal
| | - Jorge Lima
- Cancer Signaling and Metabolism Group, Instituto de Investigação e Inovação em Saúde, Universidade do Porto; Portugal
- Cancer Signaling and Metabolism Group, Institute of Molecular Pathology and Immunology of the University of Porto (IPATIMUP); Portugal
- Medical Faculty of the University of Porto; Portugal
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Martins CS, Santana-Lemos BA, Saggioro FP, Neder L, Machado HR, Moreira AC, Calado RT, de Castro M. Telomere length and telomerase expression in pituitary tumors. J Endocrinol Invest 2015; 38:1243-6. [PMID: 25952298 DOI: 10.1007/s40618-015-0298-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Accepted: 04/23/2015] [Indexed: 10/23/2022]
Abstract
PURPOSE Telomere dysfunction and telomerase activation underlie cancer transformation. This study aims to investigate the contribution of telomere biology to pituitary tumor behavior. SUBJECTS AND METHODS Samples from 50 patients with pituitary tumors (11 ACTH-secreting, 18 GH-secreting, and 21 non-secreting tumors) and 7 subjects without pituitary lesions were collected. The expressions of telomerase essential components TERT and TERC and tumor telomere content were measured by quantitative PCR techniques. RESULTS Telomerase (TERT) expression was detected in 36% of tumors. No correlation was observed between TERT and TERC expression level and tumor size in any tumor type. There was no association between gene expression and clinical findings. Telomere content (T/S ratio) was similar between pituitary adenomas (0.39 ± 0.16) and normal pituitaries (0.47 ± 0.12; p = 0.24) and also was between the different adenoma types: ACTH-secreting (0.43 ± 0.08), GH-secreting (0.31 ± 0.12), and non-secreting (0.42 ± 0.20; p = 0.10) tumors. CONCLUSIONS The telomere content and expression of telomerase components are comparable between normal pituitary glands and tumor tissues, suggesting that telomere biology does not play an important role in pituitary tumor development.
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Affiliation(s)
- C S Martins
- Department of Internal Medicine, Ribeirao Preto Medical School, University of Sao Paulo, Av Bandeirantes, 3900, 14049-900, Ribeirao Preto, SP, Brazil.
| | - B A Santana-Lemos
- Department of Internal Medicine, Ribeirao Preto Medical School, University of Sao Paulo, Av Bandeirantes, 3900, 14049-900, Ribeirao Preto, SP, Brazil
- Center for Cell-based Therapy, São Paulo Research Foundation (FAPESP), Ribeirao Preto, SP, Brazil
| | - F P Saggioro
- Department of Pathology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, SP, Brazil
| | - L Neder
- Department of Pathology, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, SP, Brazil
| | - H R Machado
- Department of Surgery and Anatomy, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, SP, Brazil
| | - A C Moreira
- Department of Internal Medicine, Ribeirao Preto Medical School, University of Sao Paulo, Av Bandeirantes, 3900, 14049-900, Ribeirao Preto, SP, Brazil
| | - R T Calado
- Department of Internal Medicine, Ribeirao Preto Medical School, University of Sao Paulo, Av Bandeirantes, 3900, 14049-900, Ribeirao Preto, SP, Brazil
- Center for Cell-based Therapy, São Paulo Research Foundation (FAPESP), Ribeirao Preto, SP, Brazil
| | - M de Castro
- Department of Internal Medicine, Ribeirao Preto Medical School, University of Sao Paulo, Av Bandeirantes, 3900, 14049-900, Ribeirao Preto, SP, Brazil.
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Souza C, Malta T, Sabedot T, Stetson L, Tirapelli D, Neder L, Carlotti C, ZenKlusen J, Salama S, Poisson L, Brat D, Barnholtz-Sloan J, Noushmehr H. EPIG-16MOST DIFFERENTIAL DNA METHYLATION CHANGES OCCUR AT CANDIDATE ENHANCER ELEMENTS FOR RECURRENT LOWER GRADE GLIOMA AND GLIOBLASTOMA. Neuro Oncol 2015. [DOI: 10.1093/neuonc/nov214.16] [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: 11/13/2022] Open
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Colli BO, Carlotti Junior CG, Assirati Junior JA, Coelho Junior VDPM, Neder L. Atypical and anaplastic meningiomas in a public hospital in São Paulo State, Brazil. Arq Neuro-Psiquiatr 2015; 73:770-8. [DOI: 10.1590/0004-282x20150106] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Atypical/anaplastic (World Health Organization (WHO) grades II and III) are less common and have poorer outcomes than benign meningiomas. This study aimed to analyze the outcome of patients with these tumors.Method Overall/recurrence-free survivals (RFS) and the Karnofsky Performance Scale of 52 patients with grades II (42) and III (9) meningiomas surgically treated were analyzed (uni/multivariate analysis).Results Total/subtotal resections were 60.8%/35.3%. Patients <60 years-old and grade II tumors had longer survival. Grade II tumors, total resection andde novo meningioma had better RFS (univariate analysis). Patients >60 years-old, de novo meningioma and radiotherapy had longer survival and patients <60 years-old and with grade II tumors had longer RFS (multivariate analysis). Recurrence rate was 51% (39.2% Grade II and 66.7% Grade III). Operative mortality was 1.9%.Conclusion Age <60 years-old, grade II tumors and de novomeningiomas were the main predictors for better prognosis among patients with grades II and III meningiomas.
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Brat DJ, Verhaak RGW, Aldape KD, Yung WKA, Salama SR, Cooper LAD, Rheinbay E, Miller CR, Vitucci M, Morozova O, Robertson AG, Noushmehr H, Laird PW, Cherniack AD, Akbani R, Huse JT, Ciriello G, Poisson LM, Barnholtz-Sloan JS, Berger MS, Brennan C, Colen RR, Colman H, Flanders AE, Giannini C, Grifford M, Iavarone A, Jain R, Joseph I, Kim J, Kasaian K, Mikkelsen T, Murray BA, O'Neill BP, Pachter L, Parsons DW, Sougnez C, Sulman EP, Vandenberg SR, Van Meir EG, von Deimling A, Zhang H, Crain D, Lau K, Mallery D, Morris S, Paulauskis J, Penny R, Shelton T, Sherman M, Yena P, Black A, Bowen J, Dicostanzo K, Gastier-Foster J, Leraas KM, Lichtenberg TM, Pierson CR, Ramirez NC, Taylor C, Weaver S, Wise L, Zmuda E, Davidsen T, Demchok JA, Eley G, Ferguson ML, Hutter CM, Mills Shaw KR, Ozenberger BA, Sheth M, Sofia HJ, Tarnuzzer R, Wang Z, Yang L, Zenklusen JC, Ayala B, Baboud J, Chudamani S, Jensen MA, Liu J, Pihl T, Raman R, Wan Y, Wu Y, Ally A, Auman JT, Balasundaram M, Balu S, Baylin SB, Beroukhim R, Bootwalla MS, Bowlby R, Bristow CA, Brooks D, Butterfield Y, Carlsen R, Carter S, Chin L, Chu A, Chuah E, Cibulskis K, Clarke A, Coetzee SG, Dhalla N, Fennell T, Fisher S, Gabriel S, Getz G, Gibbs R, Guin R, Hadjipanayis A, Hayes DN, Hinoue T, Hoadley K, Holt RA, Hoyle AP, Jefferys SR, Jones S, Jones CD, Kucherlapati R, Lai PH, Lander E, Lee S, Lichtenstein L, Ma Y, Maglinte DT, Mahadeshwar HS, Marra MA, Mayo M, Meng S, Meyerson ML, Mieczkowski PA, Moore RA, Mose LE, Mungall AJ, Pantazi A, Parfenov M, Park PJ, Parker JS, Perou CM, Protopopov A, Ren X, Roach J, Sabedot TS, Schein J, Schumacher SE, Seidman JG, Seth S, Shen H, Simons JV, Sipahimalani P, Soloway MG, Song X, Sun H, Tabak B, Tam A, Tan D, Tang J, Thiessen N, Triche T, Van Den Berg DJ, Veluvolu U, Waring S, Weisenberger DJ, Wilkerson MD, Wong T, Wu J, Xi L, Xu AW, Yang L, Zack TI, Zhang J, Aksoy BA, Arachchi H, Benz C, Bernard B, Carlin D, Cho J, DiCara D, Frazer S, Fuller GN, Gao J, Gehlenborg N, Haussler D, Heiman DI, Iype L, Jacobsen A, Ju Z, Katzman S, Kim H, Knijnenburg T, Kreisberg RB, Lawrence MS, Lee W, Leinonen K, Lin P, Ling S, Liu W, Liu Y, Liu Y, Lu Y, Mills G, Ng S, Noble MS, Paull E, Rao A, Reynolds S, Saksena G, Sanborn Z, Sander C, Schultz N, Senbabaoglu Y, Shen R, Shmulevich I, Sinha R, Stuart J, Sumer SO, Sun Y, Tasman N, Taylor BS, Voet D, Weinhold N, Weinstein JN, Yang D, Yoshihara K, Zheng S, Zhang W, Zou L, Abel T, Sadeghi S, Cohen ML, Eschbacher J, Hattab EM, Raghunathan A, Schniederjan MJ, Aziz D, Barnett G, Barrett W, Bigner DD, Boice L, Brewer C, Calatozzolo C, Campos B, Carlotti CG, Chan TA, Cuppini L, Curley E, Cuzzubbo S, Devine K, DiMeco F, Duell R, Elder JB, Fehrenbach A, Finocchiaro G, Friedman W, Fulop J, Gardner J, Hermes B, Herold-Mende C, Jungk C, Kendler A, Lehman NL, Lipp E, Liu O, Mandt R, McGraw M, Mclendon R, McPherson C, Neder L, Nguyen P, Noss A, Nunziata R, Ostrom QT, Palmer C, Perin A, Pollo B, Potapov A, Potapova O, Rathmell WK, Rotin D, Scarpace L, Schilero C, Senecal K, Shimmel K, Shurkhay V, Sifri S, Singh R, Sloan AE, Smolenski K, Staugaitis SM, Steele R, Thorne L, Tirapelli DPC, Unterberg A, Vallurupalli M, Wang Y, Warnick R, Williams F, Wolinsky Y, Bell S, Rosenberg M, Stewart C, Huang F, Grimsby JL, Radenbaugh AJ, Zhang J. Comprehensive, Integrative Genomic Analysis of Diffuse Lower-Grade Gliomas. N Engl J Med 2015; 372:2481-98. [PMID: 26061751 PMCID: PMC4530011 DOI: 10.1056/nejmoa1402121] [Citation(s) in RCA: 2118] [Impact Index Per Article: 235.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
BACKGROUND Diffuse low-grade and intermediate-grade gliomas (which together make up the lower-grade gliomas, World Health Organization grades II and III) have highly variable clinical behavior that is not adequately predicted on the basis of histologic class. Some are indolent; others quickly progress to glioblastoma. The uncertainty is compounded by interobserver variability in histologic diagnosis. Mutations in IDH, TP53, and ATRX and codeletion of chromosome arms 1p and 19q (1p/19q codeletion) have been implicated as clinically relevant markers of lower-grade gliomas. METHODS We performed genomewide analyses of 293 lower-grade gliomas from adults, incorporating exome sequence, DNA copy number, DNA methylation, messenger RNA expression, microRNA expression, and targeted protein expression. These data were integrated and tested for correlation with clinical outcomes. RESULTS Unsupervised clustering of mutations and data from RNA, DNA-copy-number, and DNA-methylation platforms uncovered concordant classification of three robust, nonoverlapping, prognostically significant subtypes of lower-grade glioma that were captured more accurately by IDH, 1p/19q, and TP53 status than by histologic class. Patients who had lower-grade gliomas with an IDH mutation and 1p/19q codeletion had the most favorable clinical outcomes. Their gliomas harbored mutations in CIC, FUBP1, NOTCH1, and the TERT promoter. Nearly all lower-grade gliomas with IDH mutations and no 1p/19q codeletion had mutations in TP53 (94%) and ATRX inactivation (86%). The large majority of lower-grade gliomas without an IDH mutation had genomic aberrations and clinical behavior strikingly similar to those found in primary glioblastoma. CONCLUSIONS The integration of genomewide data from multiple platforms delineated three molecular classes of lower-grade gliomas that were more concordant with IDH, 1p/19q, and TP53 status than with histologic class. Lower-grade gliomas with an IDH mutation either had 1p/19q codeletion or carried a TP53 mutation. Most lower-grade gliomas without an IDH mutation were molecularly and clinically similar to glioblastoma. (Funded by the National Institutes of Health.).
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Becker AP, Scapulatempo-Neto C, Menezes WP, Clara C, Machado HR, Oliveira RS, Neder L, Reis RM. Expression of Methylthioadenosine Phosphorylase (MTAP) in Pilocytic Astrocytomas. Pathobiology 2015; 82:84-9. [DOI: 10.1159/000430956] [Citation(s) in RCA: 8] [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: 12/16/2014] [Accepted: 04/27/2015] [Indexed: 11/19/2022] Open
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Gomes DC, Jamra SA, Leal LF, Colli LM, Campanini ML, Oliveira RS, Martinelli CE, Elias PCL, Moreira AC, Machado HR, Saggioro F, Neder L, Castro M, Antonini SR. Sonic Hedgehog pathway is upregulated in adamantinomatous craniopharyngiomas. Eur J Endocrinol 2015; 172:603-8. [PMID: 25693592 DOI: 10.1530/eje-14-0934] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
OBJECTIVES Pituitary stem cells play a role in the oncogenesis of human adamantinomatous craniopharyngiomas (aCPs). We hypothesized that crosstalk between the Wnt/β-catenin and Sonic Hedgehog (SHH) pathways, both of which are important in normal pituitary development, would contribute to the pathogenesis of aCPs. DESIGN To explore the mRNA and protein expression of components of the SHH signaling pathway in aCPs and their relationship with the identification of CTNNB1/β-catenin mutations and patients outcomes. PATIENTS AND METHODS In 18 aCP samples, CTNNB1 was sequenced, and the mRNA expression levels of SHH pathway members (SHH, PTCH1, SMO, GLI1, GLI2, GLI3, and SUFU) and SMO, GLI1, GLI3, SUFU, β-catenin, and Ki67 proteins were evaluated by quantitative real-time PCR and immunohistochemistry respectively. Anterior normal pituitaries were used as controls. Associations between molecular findings and clinical data were analyzed. RESULTS The aCPs presented higher mRNA expression of SHH (+400-fold change (FC); P<0.01), GLI1 (+102-FC; P<0.001), and GLI3 (+5.1-FC; P<0.01) than normal anterior pituitaries. Longer disease-free survival was associated with low SMO and SUFU mRNA expression (P<0.01 and P=0.02 respectively). CTNNB1/β-catenin mutations were found in 47% of the samples. aCPs with identified mutations presented with higher mRNA expression of SMO and GLI1 (+4.3-FC; P=0.02 and +10.2-FC; P=0.03 respectively). SMO, GLI1, GLI3, and SUFU staining was found in 85, 67, 93, and 64% of the samples respectively. Strong GLI1 and GLI3 staining was detected in palisade cells, which also labeled Ki67, a marker of cell proliferation. CONCLUSIONS The upregulation of SHH signaling occurs in aCPs. Thus, activation of Wnt/β-catenin and SHH pathways, both of which are important in pituitary embryogenesis, appears to contribute to the pathogenesis of aCP.
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Affiliation(s)
- D C Gomes
- School of Medicine of Ribeirao PretoUniversity of Sao Paulo, Avenida Bandeirantes, 3900 - Monte Alegre, CEP 14049-900, Ribeirao Preto, Sao Paulo, BrazilFederal University of UberlandiaUberlandia, Minas Gerais, Brazil School of Medicine of Ribeirao PretoUniversity of Sao Paulo, Avenida Bandeirantes, 3900 - Monte Alegre, CEP 14049-900, Ribeirao Preto, Sao Paulo, BrazilFederal University of UberlandiaUberlandia, Minas Gerais, Brazil
| | - S A Jamra
- School of Medicine of Ribeirao PretoUniversity of Sao Paulo, Avenida Bandeirantes, 3900 - Monte Alegre, CEP 14049-900, Ribeirao Preto, Sao Paulo, BrazilFederal University of UberlandiaUberlandia, Minas Gerais, Brazil
| | - L F Leal
- School of Medicine of Ribeirao PretoUniversity of Sao Paulo, Avenida Bandeirantes, 3900 - Monte Alegre, CEP 14049-900, Ribeirao Preto, Sao Paulo, BrazilFederal University of UberlandiaUberlandia, Minas Gerais, Brazil
| | - L M Colli
- School of Medicine of Ribeirao PretoUniversity of Sao Paulo, Avenida Bandeirantes, 3900 - Monte Alegre, CEP 14049-900, Ribeirao Preto, Sao Paulo, BrazilFederal University of UberlandiaUberlandia, Minas Gerais, Brazil
| | - M L Campanini
- School of Medicine of Ribeirao PretoUniversity of Sao Paulo, Avenida Bandeirantes, 3900 - Monte Alegre, CEP 14049-900, Ribeirao Preto, Sao Paulo, BrazilFederal University of UberlandiaUberlandia, Minas Gerais, Brazil
| | - R S Oliveira
- School of Medicine of Ribeirao PretoUniversity of Sao Paulo, Avenida Bandeirantes, 3900 - Monte Alegre, CEP 14049-900, Ribeirao Preto, Sao Paulo, BrazilFederal University of UberlandiaUberlandia, Minas Gerais, Brazil
| | - C E Martinelli
- School of Medicine of Ribeirao PretoUniversity of Sao Paulo, Avenida Bandeirantes, 3900 - Monte Alegre, CEP 14049-900, Ribeirao Preto, Sao Paulo, BrazilFederal University of UberlandiaUberlandia, Minas Gerais, Brazil
| | - P C L Elias
- School of Medicine of Ribeirao PretoUniversity of Sao Paulo, Avenida Bandeirantes, 3900 - Monte Alegre, CEP 14049-900, Ribeirao Preto, Sao Paulo, BrazilFederal University of UberlandiaUberlandia, Minas Gerais, Brazil
| | - A C Moreira
- School of Medicine of Ribeirao PretoUniversity of Sao Paulo, Avenida Bandeirantes, 3900 - Monte Alegre, CEP 14049-900, Ribeirao Preto, Sao Paulo, BrazilFederal University of UberlandiaUberlandia, Minas Gerais, Brazil
| | - H R Machado
- School of Medicine of Ribeirao PretoUniversity of Sao Paulo, Avenida Bandeirantes, 3900 - Monte Alegre, CEP 14049-900, Ribeirao Preto, Sao Paulo, BrazilFederal University of UberlandiaUberlandia, Minas Gerais, Brazil
| | - F Saggioro
- School of Medicine of Ribeirao PretoUniversity of Sao Paulo, Avenida Bandeirantes, 3900 - Monte Alegre, CEP 14049-900, Ribeirao Preto, Sao Paulo, BrazilFederal University of UberlandiaUberlandia, Minas Gerais, Brazil
| | - L Neder
- School of Medicine of Ribeirao PretoUniversity of Sao Paulo, Avenida Bandeirantes, 3900 - Monte Alegre, CEP 14049-900, Ribeirao Preto, Sao Paulo, BrazilFederal University of UberlandiaUberlandia, Minas Gerais, Brazil
| | - M Castro
- School of Medicine of Ribeirao PretoUniversity of Sao Paulo, Avenida Bandeirantes, 3900 - Monte Alegre, CEP 14049-900, Ribeirao Preto, Sao Paulo, BrazilFederal University of UberlandiaUberlandia, Minas Gerais, Brazil
| | - S R Antonini
- School of Medicine of Ribeirao PretoUniversity of Sao Paulo, Avenida Bandeirantes, 3900 - Monte Alegre, CEP 14049-900, Ribeirao Preto, Sao Paulo, BrazilFederal University of UberlandiaUberlandia, Minas Gerais, Brazil
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