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Vieira Costa R, Balbinot KM, da Silveira GCAR, Kataoka MSDS, de Menezes SAF, Freitas VM, Vasconcelos ACU, Etges A, Martins Montalli VA, Santos FP, Alves Júnior SDM, Jaeger RG, Pinheiro JDJV. Prognostic value of the expression and localization of cell proliferation and apoptosis markers in unicystic ameloblastomas. Sci Rep 2024; 14:3856. [PMID: 38360984 PMCID: PMC10869795 DOI: 10.1038/s41598-024-54132-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 02/08/2024] [Indexed: 02/17/2024] Open
Abstract
The aim of this study was to verify whether the expression of cell proliferation and apoptosis markers in different types of unicystic ameloblastoma (UA) is associated with the location of neoplastic cells. Immunohistochemical study with a sample of 32 cases of UA, 11 cases of conventional ameloblastoma (CAM) and ten dental follicles (DF) cases was performed. Cell proliferation was assessed using Ki-67 status, and apoptosis by caspase-3 expression. Mural UA (MUA) showed a higher immunostaining of Ki-67 (p < 0.05) and a lower immunostaining of Caspase-3 (p < 0.05) compared with luminal and intraluminal subtypes of UA and CAM. The neoplastic cells of the MUA's cystic capsule showed a higher expression of Ki-67 protein (p < 0.0001) and a lower expression of Caspase-3 (p < 0.0001) compared with the lumen. DF showed lower Ki-67 and Caspase-3 immunostaining (p < 0.05) than neoplasms. The higher immunoexpression of Ki-67 and the lower immunoexpression of Caspase-3 in MUA, in the parenchyma cells within the cystic capsule, suggest an association between the biological behaviour and location of neoplastic cells in a tumour.
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Affiliation(s)
- Rebeca Vieira Costa
- Laboratory of Pathological Anatomy and Immunohistochemistry, School of Dentistry, Federal University of Pará, Rua Augusto Corrêa, 01, Belém, Pará, 66075-110, Brazil
| | - Karolyny Martins Balbinot
- Laboratory of Pathological Anatomy and Immunohistochemistry, School of Dentistry, Federal University of Pará, Rua Augusto Corrêa, 01, Belém, Pará, 66075-110, Brazil
| | | | - Maria Sueli da Silva Kataoka
- Cell Culture Laboratory, School of Dentistry, Federal University of Pará, Rua Augusto Corrêa, 01, Belém, Pará, 66075-110, Brazil
| | | | - Vanessa Morais Freitas
- Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Ana Carolina Uchoa Vasconcelos
- Center for the Diagnosis of Diseases of the Mouth, School of Dentistry, Federal University of Pelotas, Rua Gonçalves Chaves, 457/607, Pelotas, Rio Grande do Sul, 96015-560, Brazil
| | - Adriana Etges
- Center for the Diagnosis of Diseases of the Mouth, School of Dentistry, Federal University of Pelotas, Rua Gonçalves Chaves, 457/607, Pelotas, Rio Grande do Sul, 96015-560, Brazil
| | - Victor Angelo Martins Montalli
- Department of Oral Pathology, São Leopoldo Mandic Institute and Research Center, Rua Dr. José Rocha Junqueira, 13-Pte. Preta, Campinas, SP, 13045-755, Brazil
| | - Fabricio Passador Santos
- Department of Oral Pathology, São Leopoldo Mandic Institute and Research Center, Rua Dr. José Rocha Junqueira, 13-Pte. Preta, Campinas, SP, 13045-755, Brazil
| | - Sérgio de Melo Alves Júnior
- Laboratory of Pathological Anatomy and Immunohistochemistry, School of Dentistry, Federal University of Pará, Rua Augusto Corrêa, 01, Belém, Pará, 66075-110, Brazil
| | - Ruy Gastaldoni Jaeger
- Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - João de Jesus Viana Pinheiro
- Cell Culture Laboratory, School of Dentistry, Federal University of Pará, Rua Augusto Corrêa, 01, Belém, Pará, 66075-110, Brazil.
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da Silva FJ, Carvalho de Azevedo J, Ralph ACL, Pinheiro JDJV, Freitas VM, Calcagno DQ. Salivary glands adenoid cystic carcinoma: a molecular profile update and potential implications. Front Oncol 2023; 13:1191218. [PMID: 37476370 PMCID: PMC10354556 DOI: 10.3389/fonc.2023.1191218] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 06/01/2023] [Indexed: 07/22/2023] Open
Abstract
Adenoid cystic carcinoma (ACC) is an aggressive tumor with a high propensity for distant metastasis and perineural invasion. This tumor is more commonly found in regions of the head and neck, mainly the salivary glands. In general, the primary treatment modality for ACC is surgical resection and, in some cases, postoperative radiotherapy. However, no effective systemic treatment is available for patients with advanced disease. Furthermore, this tumor type is characterized by recurrent molecular alterations, especially rearrangements involving the MYB, MYBL1, and NFIB genes. In addition, they also reported copy number alterations (CNAs) that impact genes. One of them is C-KIT, mutations that affect signaling pathways such as NOTCH, PI3KCA, and PTEN, as well as alterations in chromatin remodeling genes. The identification of new molecular targets enables the development of specific therapies. Despite ongoing investigations into immunotherapy, tyrosine kinase inhibitors, and anti-angiogenics, no systemic therapy is approved by the FDA for ACC. In this review, we report the genetic and cytogenetic findings on head and neck ACC, highlighting possible targets for therapeutic interventions.
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Affiliation(s)
- Fernanda Jardim da Silva
- Núcleo de Pesquisas em Oncologia, Programa de Pós-Graduação em Oncologia e Ciências Médicas, Universidade Federal do Pará, Belém, Brazil
| | - Juscelino Carvalho de Azevedo
- Núcleo de Pesquisas em Oncologia, Programa de Pós-Graduação em Oncologia e Ciências Médicas, Universidade Federal do Pará, Belém, Brazil
- Hospital Universitário João de Barros Barreto, Programa de Residência Multiprofissional em Saúde (Oncologia), Universidade Federal do Pará, Belém, Brazil
| | - Ana Carolina Lima Ralph
- Faculdade de Farmácia, Faculdade Estácio, Carapicuíba, Brazil
- Instituto de Ciências da Saúde, Programa de Pós-Graduação em Odontologia, Universidade Federal do Pará, Belém, Brazil
| | - João de Jesus Viana Pinheiro
- Laboratório de Microambiente Tumoral, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, Brazil
| | - Vanessa Morais Freitas
- Instituto de Ciências da Saúde, Programa de Pós-Graduação em Odontologia, Universidade Federal do Pará, Belém, Brazil
| | - Danielle Queiroz Calcagno
- Núcleo de Pesquisas em Oncologia, Programa de Pós-Graduação em Oncologia e Ciências Médicas, Universidade Federal do Pará, Belém, Brazil
- Hospital Universitário João de Barros Barreto, Programa de Residência Multiprofissional em Saúde (Oncologia), Universidade Federal do Pará, Belém, Brazil
- Laboratório de Microambiente Tumoral, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, Brazil
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Teles RHG, Hiroki CT, Freitas VM. Bibliometric analysis of an important diagnostic technique for the treatment of breast cancer. Transl Cancer Res 2022; 11:3440-3442. [PMID: 36388052 PMCID: PMC9641074 DOI: 10.21037/tcr-22-2120] [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] [Received: 08/25/2022] [Accepted: 09/16/2022] [Indexed: 01/25/2023]
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Lorenzon A, Guedes CB, Borbely AU, Cardoso EC, Corrêa-Silva S, Bonetti TC, Serafini PC, Motta EL, Freitas VM, Myung LHJ, Abraão MS, Bevilaqua E. O-032 Primary human endothelial and stromal cells from the uterine endometrium co-cultured in vitro in a 3D-system as a model to study the physiopathology of endometriosis. Hum Reprod 2022. [DOI: 10.1093/humrep/deac104.032] [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: 11/13/2022] Open
Abstract
Abstract
Study question
Is an uterine endothelial-stromal cell 3D-system able to respond to inflammatory/immune factors presented in patient’s endometriotic serum and can this be reversible by hormonal treatment?
Summary answer
The endothelial-stromal cells system is responsive to the serum from women with endometriosis and its cytokine profile may be reverse with hormonal treatment.
What is known already
Endometriosis’s declined fertility is mainly attributed to poor oocyte quality, inhibition of ovulation, an anatomical commitment of tubes and uterus, and loss of endometrial receptivity during the implantation window. Changes in the inflammatory/immune profile in pelvic and peripheral blood also suggest a possible interference of several cytokines playing a role in women's reduced fertility. Three-dimensional (3D) cell cultures open up new study possibilities, by guaranteeing interactions between spatially organized tissues mimicking the natural microenvironment and can significantly contribute to obtaining essential data for understanding endometrial physiology and its associated diseases.
Study design, size, duration
This is a prospective cohort study with oocyte donation women from a private IVF center and patients under endometriosis treatment in an University-affiliated gynecology service. Endometrium biopsy (n = 9) and non-endometriotic serum blood (n = 15) were collected from oocyte donors in the same day of oocyte picked (antagonist protocol), before ovary puncture and serum blood samples were collected from patients diagnostic with endometriosis (n = 15). Samples were collected between Jan/2016 and May/2017 after signing the informed consent form.
Participants/materials, setting, methods
Endometriotic serum samples were obtained from patients with (n = 10) or without (n = 5) estrogen/progestin therapy. Tissue biopsies were digested and submitted to magnetic microbeads. Endothelial and stromal cells layers were added one-by-one to a mixture of extracellular matrix components. The 3D-system received endometriotic or control serum for additional 48h. Supernatants were excluded and the cells homogenized for cytokine evaluation through cytometric bead array. The ANOVA-Tukey’s test were used for statistical analysis, p < 0.05 were considered significant.
Main results and the role of chance
Oocyte donors were 24,2 ± 3,41 years old and had a body mass index (BMI) of 22,7 ± 1,38. Patients with endometriosis were 34,0 ± 3,93 years old (p = 0,21) and had a BMI of 25,4 ± 4,13 (p = 0.02). The morphology assessed by ultrastructural analysis of the 3D-system showed the presence of cells embedded in an abundant extracellular matrix, with no directional organization and with morphology compatible with fibrocytes and fibroblasts. The cells showed characteristics of viable cells with loose chromatin nuclei, evident nucleoli, and well-defined organelles. Eventually, mitosis were observed. Specific presence or absence of stromal and endothelial cells markers (cytokeratin, vimentin, IGFBP1, von Willebrand factor) were confirmed by immunofluorescence and flow cytometry. Cell viability were assessed by Fixable Cell Viability 510 dye staining. Changes in the expression profile of the cytokines TNF-alpha (p < 0.0001), IL-10 (p < 0.001) and IL-2 (p < 0.001) were detected in the endothelial-stromal cells treated with the serum of endometriotic patients in comparison with hormonally-treated and non-endometriotic groups. These results suggest amelioration of the immune response by endometrial cells when submitted to a serum environment under hormonal treatment. Serum of endometriotic patients (hormonally treated and non-treated) also increased the levels of IL-6 and IL-8 in the co-cultured cells.
Limitations, reasons for caution
Endometrial biopsies were collected in the initial secretory phase of young oocyte donor women, which may not reflect to the eutopic endometrial response in patients with endometriosis. The reduced size of patients cohort may also increase the risks of bias in cytokine analysis.
Wider implications of the findings
The possibility of endometrial cells, even in the absence of leukocytes, to become a protagonist in the expression of cytokines and the ability of uterine cells to respond and contribute to a systemic inflammatory/immunomodulating environment with cytokine production may reflect on the pathophysiology of endometriosis and uterine reproductive functions.
Trial registration number
Not Applicable
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Affiliation(s)
- A Lorenzon
- Huntington Medicina Reprodutiva, Research and Development Department, São Paulo , Brazil
| | - C B Guedes
- University of São Paulo, Department of Cell and Developmental Biology - Institute of Biomedical Sciences, São Paulo- SP , Brazil
| | - A U Borbely
- Federal University of Alagoas, Cell Biology Laboratory- Institute of Health and Biological Sciences, Maceió- AL , Brazil
| | - E C Cardoso
- Brazilian Center for Research in Energy and Materials - CNPEM, Biosciences National Laboratory - LNBio, Campinas- SP , Brazil
| | - S Corrêa-Silva
- Paulista University - UNIP and School of Medicine, Laboratory of Medical Investigation LIM-36- Department of Pediatrics- Hospital das Clínicas HCFMUSP, São Paulo- SP , Brazil
| | - T C Bonetti
- Paulista School of Medicine, Department of Gynecology, São Paulo- SP , Brazil
| | - P C Serafini
- Huntington Medicina Reprodutiva, Clinical Department, São Paulo- SP , Brazil
| | - E L Motta
- Huntington Medicina Reprodutiva and Federal University of São Paulo - Paulista School of Medicine, Clinical Department and Department of Gynecology, São Paulo- SP , Brazil
| | - V M Freitas
- University of São Paulo, Department of Cell and Developmental Biology - Institute of Biomedical Sciences, São Paulo- SP , Brazil
| | - L H J Myung
- Hospital Beneficiencia Portuguesa, Gynecology Division, São Paulo- SP , Brazil
| | - M S Abraão
- University of São Paulo and Hospital Beneficiência Portuguesa, Department of Gynecology and Gynecology Division, São Paulo- SP , Brazil
| | - E Bevilaqua
- University of São Paulo, Department of Cell and Developmental Biology - Institute of Biomedical Sciences, São Paulo- SP , Brazil
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Yamagata AS, Freire PP, Jones Villarinho N, Teles RHG, Francisco KJM, Jaeger RG, Freitas VM. Transcriptomic Response to Acidosis Reveals Its Contribution to Bone Metastasis in Breast Cancer Cells. Cells 2022; 11:cells11030544. [PMID: 35159353 PMCID: PMC8834614 DOI: 10.3390/cells11030544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 01/31/2022] [Accepted: 02/02/2022] [Indexed: 01/27/2023] Open
Abstract
Bone is the most common site of metastasis in breast cancer. Metastasis is promoted by acidosis, which is associated with osteoporosis. To investigate how acidosis could promote bone metastasis, we compared differentially expressed genes (DEGs) in MDA-MB-231 cancer cells in acidosis, bone metastasis, and bone metastatic tumors. The DEGs were identified using Biojupies and GEO2R. The expression profiles were assessed with Morpheus. The overlapping DEGs between acidosis and bone metastasis were compared to the bulk of the DEGs in terms of the most important genes and enriched terms using CytoHubba and STRING. The expression of the genes in this overlap filtered by secreted proteins was assessed in the osteoporosis secretome. The analysis revealed that acidosis-associated transcriptomic changes were more similar to bone metastasis than bone metastatic tumors. Extracellular matrix (ECM) organization would be the main biological process shared between acidosis and bone metastasis. The secretome genes upregulated in acidosis, bone metastasis, and osteoporosis-associated mesenchymal stem cells are enriched for ECM organization and angiogenesis. Therefore, acidosis may be more important in the metastatic niche than in the primary tumor. Acidosis may contribute to bone metastasis by promoting ECM organization. Untreated osteoporosis could favor bone metastasis through the increased secretion of ECM organization proteins.
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Affiliation(s)
- Ana Sayuri Yamagata
- Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of São Paulo, São Paulo 05508-000, Brazil; (N.J.V.); (R.H.G.T.); (K.J.M.F.); (R.G.J.); (V.M.F.)
- Correspondence:
| | - Paula Paccielli Freire
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo 05508-000, Brazil;
| | - Nícolas Jones Villarinho
- Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of São Paulo, São Paulo 05508-000, Brazil; (N.J.V.); (R.H.G.T.); (K.J.M.F.); (R.G.J.); (V.M.F.)
| | - Ramon Handerson Gomes Teles
- Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of São Paulo, São Paulo 05508-000, Brazil; (N.J.V.); (R.H.G.T.); (K.J.M.F.); (R.G.J.); (V.M.F.)
| | - Kelliton José Mendonça Francisco
- Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of São Paulo, São Paulo 05508-000, Brazil; (N.J.V.); (R.H.G.T.); (K.J.M.F.); (R.G.J.); (V.M.F.)
| | - Ruy Gastaldoni Jaeger
- Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of São Paulo, São Paulo 05508-000, Brazil; (N.J.V.); (R.H.G.T.); (K.J.M.F.); (R.G.J.); (V.M.F.)
| | - Vanessa Morais Freitas
- Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of São Paulo, São Paulo 05508-000, Brazil; (N.J.V.); (R.H.G.T.); (K.J.M.F.); (R.G.J.); (V.M.F.)
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Teles RHG, Yano RS, Villarinho NJ, Yamagata AS, Jaeger RG, Meybohm P, Burek M, Freitas VM. Advances in Breast Cancer Management and Extracellular Vesicle Research, a Bibliometric Analysis. Curr Oncol 2021; 28:4504-4520. [PMID: 34898576 PMCID: PMC8628791 DOI: 10.3390/curroncol28060382] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [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] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 11/01/2021] [Accepted: 11/04/2021] [Indexed: 12/21/2022] Open
Abstract
Extracellular vesicles transport variable content and have crucial functions in cell–cell communication. The role of extracellular vesicles in cancer is a current hot topic, and no bibliometric study has ever analyzed research production regarding their role in breast cancer and indicated the trends in the field. In this way, we aimed to investigate the trends in breast cancer management involved with extracellular vesicle research. Articles were retrieved from Scopus, including all the documents published concerning breast cancer and extracellular vesicles. We analyzed authors, journals, citations, affiliations, and keywords, besides other bibliometric analyses, using R Studio version 3.6.2. and VOSviewer version 1.6.0. A total of 1151 articles were retrieved, and as the main result, our analysis revealed trending topics on biomarkers of liquid biopsy, drug delivery, chemotherapy, autophagy, and microRNA. Additionally, research related to extracellular vesicles in breast cancer has been focused on diagnosis, treatment, and mechanisms of action of breast tumor-derived vesicles. Future studies are expected to explore the role of extracellular vesicles on autophagy and microRNA, besides investigating the application of extracellular vesicles from liquid biopsies for biomarkers and drug delivery, enabling the development and validation of therapeutic strategies for specific cancers.
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Affiliation(s)
- Ramon Handerson Gomes Teles
- Laboratory of Tumor Microenvironment, Department of Cell and Developmental Biology, Institute of Biomedical Sciences (ICB), University of São Paulo, São Paulo 05508-000, Brazil; (R.S.Y.); (N.J.V.); (A.S.Y.); (R.G.J.); (V.M.F.)
- Correspondence: ; Tel.: +55-16-98205-9151
| | - Rafael Sussumu Yano
- Laboratory of Tumor Microenvironment, Department of Cell and Developmental Biology, Institute of Biomedical Sciences (ICB), University of São Paulo, São Paulo 05508-000, Brazil; (R.S.Y.); (N.J.V.); (A.S.Y.); (R.G.J.); (V.M.F.)
| | - Nicolas Jones Villarinho
- Laboratory of Tumor Microenvironment, Department of Cell and Developmental Biology, Institute of Biomedical Sciences (ICB), University of São Paulo, São Paulo 05508-000, Brazil; (R.S.Y.); (N.J.V.); (A.S.Y.); (R.G.J.); (V.M.F.)
| | - Ana Sayuri Yamagata
- Laboratory of Tumor Microenvironment, Department of Cell and Developmental Biology, Institute of Biomedical Sciences (ICB), University of São Paulo, São Paulo 05508-000, Brazil; (R.S.Y.); (N.J.V.); (A.S.Y.); (R.G.J.); (V.M.F.)
| | - Ruy Gastaldoni Jaeger
- Laboratory of Tumor Microenvironment, Department of Cell and Developmental Biology, Institute of Biomedical Sciences (ICB), University of São Paulo, São Paulo 05508-000, Brazil; (R.S.Y.); (N.J.V.); (A.S.Y.); (R.G.J.); (V.M.F.)
| | - Patrick Meybohm
- Department of Anaesthesiology, Intensive Care, Emergency and Pain Medicine, University Hospital Würzburg, 97080 Würzburg, Germany; (P.M.); (M.B.)
| | - Malgorzata Burek
- Department of Anaesthesiology, Intensive Care, Emergency and Pain Medicine, University Hospital Würzburg, 97080 Würzburg, Germany; (P.M.); (M.B.)
| | - Vanessa Morais Freitas
- Laboratory of Tumor Microenvironment, Department of Cell and Developmental Biology, Institute of Biomedical Sciences (ICB), University of São Paulo, São Paulo 05508-000, Brazil; (R.S.Y.); (N.J.V.); (A.S.Y.); (R.G.J.); (V.M.F.)
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Noriega-Guerra H, Freitas VM. Extracellular Matrix Influencing HGF/c-MET Signaling Pathway: Impact on Cancer Progression. Int J Mol Sci 2018; 19:ijms19113300. [PMID: 30352967 PMCID: PMC6274944 DOI: 10.3390/ijms19113300] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [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] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 10/18/2018] [Accepted: 10/20/2018] [Indexed: 12/22/2022] Open
Abstract
The extracellular matrix (ECM) is a crucial component of the tumor microenvironment involved in numerous cellular processes that contribute to cancer progression. It is acknowledged that tumor–stromal cell communication is driven by a complex and dynamic network of cytokines, growth factors and proteases. Thus, the ECM works as a reservoir for bioactive molecules that modulate tumor cell behavior. The hepatocyte growth factor (HGF) produced by tumor and stromal cells acts as a multifunctional cytokine and activates the c-MET receptor, which is expressed in different tumor cell types. The HGF/c-MET signaling pathway is associated with several cellular processes, such as proliferation, survival, motility, angiogenesis, invasion and metastasis. Moreover, c-MET activation can be promoted by several ECM components, including proteoglycans and glycoproteins that act as bridging molecules and/or signal co-receptors. In contrast, c-MET activation can be inhibited by proteoglycans, matricellular proteins and/or proteases that bind and sequester HGF away from the cell surface. Therefore, understanding the effects of ECM components on HGF and c-MET may provide opportunities for novel therapeutic strategies. Here, we give a short overview of how certain ECM components regulate the distribution and activation of HGF and c-MET.
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Affiliation(s)
- Heydi Noriega-Guerra
- Departamento de Biologia Celular e do Desenvolvimento, Instituto de Ciências Biomédicas, Universidade de São Paulo, Av. Prof. Lineu Prestes 1524, Prédio I, sala 428, 05508-000, São Paulo, SP, Brazil.
| | - Vanessa Morais Freitas
- Departamento de Biologia Celular e do Desenvolvimento, Instituto de Ciências Biomédicas, Universidade de São Paulo, Av. Prof. Lineu Prestes 1524, Prédio I, sala 428, 05508-000, São Paulo, SP, Brazil.
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Abstract
The mechanisms involved in tumor cell extravasation during metastasis remain incompletely understood. In this issue of Developmental Cell, Follain and colleagues (2018) demonstrate that blood flow velocity is an important regulator of circulating tumor cell exit from the bloodstream.
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Affiliation(s)
- Vanessa Morais Freitas
- Department of Molecular, Cell and Developmental Biology, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Georg Hilfenhaus
- Department of Molecular, Cell and Developmental Biology, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - M Luisa Iruela-Arispe
- Department of Molecular, Cell and Developmental Biology, University of California Los Angeles, Los Angeles, CA 90095, USA; Molecular Biology Institute, University of California Los Angeles, Los Angeles, CA 90095, USA.
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9
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Silva EMR, Freitas VM, Bautz WG, de Barros LAP, da Gama de Souza LN. Immunohistochemical Study of Laminin-332 γ2 Chain and MMP-9 in High Risk of Malignant Transformation Oral Lesions and OSCC. J Oral Maxillofac Res 2018; 9:e3. [PMID: 29707182 PMCID: PMC5913416 DOI: 10.5037/jomr.2018.9103] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Accepted: 03/10/2018] [Indexed: 11/16/2022]
Abstract
Objectives Oral squamous cell carcinoma is associated with alterations in basement membrane. Laminin-332 is present in basal lamina and performs multiple biologic effects by γ2 chain. Matrix metalloproteinase acts disrupting extracellular components and was related to poor prognosis in cancer. Here, molecular profile of laminin-332 γ2 chain and matrix metalloproteinase-9 was assessed in oral lesions. Material and Methods The expression of laminin-332 γ2 chain and matrix metalloproteinase-9 (MMP-9) was examined by immunohistochemistry in 10 patients with high risk of malignant transformation oral lesions and 26 cases of oral squamous cell carcinoma (OSCC). Associations between microscopic and clinicopathologic features were established. Results Immunostaining of laminin-332 γ2 chain in high risk oral lesions was most detected in basement membrane which is continuous, while the majority of OSCC cases showed a discontinuous membrane (P = 0.001). It was observed a positive reaction for γ2 chain in invasive fronts and a higher expression in epithelial compartment of smoking patients with OSCC (P < 0.0001). In epithelium, MMP-9 expression was presented in all layers with no difference between lesions. However, an elevated immunostaining in stromal cells was associated with male patients (P = 0.0054), older than 60 years (P = 0.0101) and with OSCC. Conclusions Present study results support the hypothesis of changes in molecules expression in high risk oral lesions and oral squamous cell carcinoma. A relation between clinical and molecule profile was observed. Those molecules may represent a useful tool to predict oral cancer behaviour.
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Affiliation(s)
| | - Vanessa Morais Freitas
- Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of São PauloBrazil
| | - Willian Grassi Bautz
- Department of Morphology, Health of Sciences Center, Federal University of Espírito SantoBrazil
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Tamazato Longhi M, Magalhães M, Reina J, Morais Freitas V, Cella N. EGFR Signaling Regulates Maspin/SerpinB5 Phosphorylation and Nuclear Localization in Mammary Epithelial Cells. PLoS One 2016; 11:e0159856. [PMID: 27447178 PMCID: PMC4957797 DOI: 10.1371/journal.pone.0159856] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Accepted: 07/08/2016] [Indexed: 12/13/2022] Open
Abstract
Maspin (SerpinB5) is a non-inhibitory serpin (serine protease inhibitor) with very diverse biological activities including regulation of cell adhesion, migration, death, control of gene expression and oxidative stress response. Initially described as a tumor and metastasis suppressor, clinical data brought controversies to the field, as some studies reported no correlation between SerpinB5 expression and prognosis value. These data underscore the importance of understanding SerpinB5 function in a normal physiological context and the molecular mechanism involved. Several SerpinB5 phosphoforms have been detected in different cell lines, but the signaling pathways involved and the biological significance of this post-translational modification in vivo remains to be explored. In this study we investigated SerpinB5 expression, subcellular localization and phosphorylation in different stages of the mouse mammary gland development and the signaling pathway involved. Here we show that SerpinB5 is first detected in late pregnancy, reaches its highest levels in lactation and remains at constant levels during post-lactational regression (involution). Using high resolution isoelectric focusing followed but immunoblot, we found at least 8 different phosphoforms of SerpinB5 during lactation, which decreases steadily at the onset of involution. In order to investigate the signaling pathway involved in SerpinB5 phosphorylation, we took advantage of the non-transformed MCF-10A model system, as we have previously observed SerpinB5 phosphorylation in these cells. We detected basal levels of SerpinB5 phosphorylation in serum- and growth factor-starved cells, which is due to amphiregulin autocrine activity on MCF-10A cells. EGF and TGF alpha, two other EGFR ligands, promote important SerpinB5 phosphorylation. Interestingly, EGF treatment is followed by SerpinB5 nuclear accumulation. Altogether, these data indicate that SerpinB5 expression and phosphorylation are developmentally regulated. In vitro analyses indicate that SerpinB5 phosphorylation is regulated by EGFR ligands, but EGF appears to be the only able to induce SerpinB5 nuclear localization.
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Affiliation(s)
- Mariana Tamazato Longhi
- Departamento de Biologia Celular e do Desenvolvimento, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Magna Magalhães
- Departamento de Biologia Celular e do Desenvolvimento, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Jeffrey Reina
- Departamento de Biologia Celular e do Desenvolvimento, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Vanessa Morais Freitas
- Departamento de Biologia Celular e do Desenvolvimento, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Nathalie Cella
- Departamento de Biologia Celular e do Desenvolvimento, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, SP, Brazil
- * E-mail:
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Lima MA, dos Santos L, Turri JA, Nonogaki S, Buim M, Lima JF, de Jesus Viana Pinheiro J, Bueno de Toledo Osório CA, Soares FA, Freitas VM. Prognostic Value of ADAMTS Proteases and Their Substrates in Epithelial Ovarian Cancer. Pathobiology 2016; 83:316-26. [DOI: 10.1159/000446244] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Accepted: 04/13/2016] [Indexed: 11/19/2022] Open
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de Sousa GF, Lima MDA, Custodio DF, Freitas VM, Monteiro G. Chemogenomic Study of Carboplatin in Saccharomyces cerevisiae: Inhibition of the NEDDylation Process Overcomes Cellular Resistance Mediated by HuR and Cullin Proteins. PLoS One 2015; 10:e0145377. [PMID: 26692264 PMCID: PMC4686384 DOI: 10.1371/journal.pone.0145377] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Accepted: 12/01/2015] [Indexed: 12/16/2022] Open
Abstract
The use of carboplatin in cancer chemotherapy is limited by the emergence of drug resistance. To understand the molecular basis for this resistance, a chemogenomic screen was performed in 53 yeast mutants that had previously presented strong sensitivity to this widely used anticancer agent. Thirty-four mutants were responsive to carboplatin, and from these, 21 genes were selected for further studies because they have human homologues. Sixty percent of these yeast genes possessed human homologues which encoded proteins that interact with cullin scaffolds of ubiquitin ligases, or whose mRNA are under the regulation of Human antigen R (HuR) protein. Both HuR and cullin proteins are regulated through NEDDylation post-translational modification, and so our results indicate that inhibition of this process should sensitise resistant tumour cells to carboplatin. We showed that treatment of a tumour cell line with MLN4924, a NEDDylation inhibitor, overcame the resistance to carboplatin. Our data suggest that inhibition of NEDDylation may be a useful strategy to resensitise tumour cells in patients that have acquired carboplatin resistance.
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Affiliation(s)
- Graziele Fonseca de Sousa
- Departamento de Tecnologia Bioquímico-Farmacêutica, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, São Paulo–USP, Brazil
| | - Maira de Assis Lima
- Departamento de Biologia Celular e do Desenvolvimento, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo–USP, Brazil
| | - Débora Fernandes Custodio
- Departamento de Tecnologia Bioquímico-Farmacêutica, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, São Paulo–USP, Brazil
| | - Vanessa Morais Freitas
- Departamento de Biologia Celular e do Desenvolvimento, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo–USP, Brazil
| | - Gisele Monteiro
- Departamento de Tecnologia Bioquímico-Farmacêutica, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, São Paulo–USP, Brazil
- * E-mail:
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Nery LR, Eltz NS, Hackman C, Fonseca R, Altenhofen S, Guerra HN, Freitas VM, Bonan CD, Vianna MRMR. Brain intraventricular injection of amyloid-β in zebrafish embryo impairs cognition and increases tau phosphorylation, effects reversed by lithium. PLoS One 2014; 9:e105862. [PMID: 25187954 PMCID: PMC4154875 DOI: 10.1371/journal.pone.0105862] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2013] [Accepted: 07/29/2014] [Indexed: 02/07/2023] Open
Abstract
Alzheimer's disease (AD) is a devastating neurodegenerative disorder with no effective treatment and commonly diagnosed only on late stages. Amyloid-β (Aβ) accumulation and exacerbated tau phosphorylation are molecular hallmarks of AD implicated in cognitive deficits and synaptic and neuronal loss. The Aβ and tau connection is beginning to be elucidated and attributed to interaction with different components of common signaling pathways. Recent evidences suggest that non-fibrillary Aβ forms bind to membrane receptors and modulate GSK-3β activity, which in turn phosphorylates the microtubule-associated tau protein leading to axonal disruption and toxic accumulation. Available AD animal models, ranging from rodent to invertebrates, significantly contributed to our current knowledge, but complementary platforms for mechanistic and candidate drug screenings remain critical for the identification of early stage biomarkers and potential disease-modifying therapies. Here we show that Aβ1-42 injection in the hindbrain ventricle of 24 hpf zebrafish embryos results in specific cognitive deficits and increased tau phosphorylation in GSK-3β target residues at 5dpf larvae. These effects are reversed by lithium incubation and not accompanied by apoptotic markers. We believe this may represent a straightforward platform useful to identification of cellular and molecular mechanisms of early stage AD-like symptoms and the effects of neuroactive molecules in pharmacological screenings.
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Affiliation(s)
- Laura Roesler Nery
- ZebLab & Laboratório de Biologia e Desenvolvimento do Sistema Nervoso, Faculdade de Biociências, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Natalia Silva Eltz
- ZebLab & Laboratório de Biologia e Desenvolvimento do Sistema Nervoso, Faculdade de Biociências, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Cristiana Hackman
- ZebLab & Laboratório de Biologia e Desenvolvimento do Sistema Nervoso, Faculdade de Biociências, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Raphaela Fonseca
- ZebLab & Laboratório de Biologia e Desenvolvimento do Sistema Nervoso, Faculdade de Biociências, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Stefani Altenhofen
- ZebLab & Laboratório de Neuroquímica e Psicofarmacologia, Faculdade de Biociências, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Heydi Noriega Guerra
- Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Vanessa Morais Freitas
- Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Carla Denise Bonan
- ZebLab & Laboratório de Neuroquímica e Psicofarmacologia, Faculdade de Biociências, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Monica Ryff Moreira Roca Vianna
- ZebLab & Laboratório de Biologia e Desenvolvimento do Sistema Nervoso, Faculdade de Biociências, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
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Calcagno DQ, Freitas VM, Leal MF, de Souza CRT, Demachki S, Montenegro R, Assumpção PP, Khayat AS, Smith MDAC, dos Santos AKCR, Burbano RR. MYC, FBXW7 and TP53 copy number variation and expression in gastric cancer. BMC Gastroenterol 2013; 13:141. [PMID: 24053468 PMCID: PMC3851138 DOI: 10.1186/1471-230x-13-141] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2013] [Accepted: 09/10/2013] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND MYC deregulation is a common event in gastric carcinogenesis, usually as a consequence of gene amplification, chromosomal translocations, or posttranslational mechanisms. FBXW7 is a p53-controlled tumor-suppressor that plays a role in the regulation of cell cycle exit and reentry via MYC degradation. METHODS We evaluated MYC, FBXW7, and TP53 copy number, mRNA levels, and protein expression in gastric cancer and paired non-neoplastic specimens from 33 patients and also in gastric adenocarcinoma cell lines. We also determined the invasion potential of the gastric cancer cell lines. RESULTS MYC amplification was observed in 51.5% of gastric tumor samples. Deletion of one copy of FBXW7 and TP53 was observed in 45.5% and 21.2% of gastric tumors, respectively. MYC mRNA expression was significantly higher in tumors than in non-neoplastic samples. FBXW7 and TP53 mRNA expression was markedly lower in tumors than in paired non-neoplastic specimens. Moreover, deregulated MYC and FBXW7 mRNA expression was associated with the presence of lymph node metastasis and tumor stage III-IV. Additionally, MYC immunostaining was more frequently observed in intestinal-type than diffuse-type gastric cancers and was associated with MYC mRNA expression. In vitro studies showed that increased MYC and reduced FBXW7 expression is associated with a more invasive phenotype in gastric cancer cell lines. This result encouraged us to investigate the activity of the gelatinases MMP-2 and MMP-9 in both cell lines. Both gelatinases are synthesized predominantly by stromal cells rather than cancer cells, and it has been proposed that both contribute to cancer progression. We observed a significant increase in MMP-9 activity in ACP02 compared with ACP03 cells. These results confirmed that ACP02 cells have greater invasion capability than ACP03 cells. CONCLUSION In conclusion, FBXW7 and MYC mRNA may play a role in aggressive biologic behavior of gastric cancer cells and may be a useful indicator of poor prognosis. Furthermore, MYC is a candidate target for new therapies against gastric cancer.
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Affiliation(s)
- Danielle Queiroz Calcagno
- Laboratório de Citogenética Humana, Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, PA, Brasil.
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Ferreira AK, Freitas VM, Levy D, Ruiz JLM, Bydlowski SP, Rici REG, Filho OMR, Chierice GO, Maria DA. Anti-angiogenic and anti-metastatic activity of synthetic phosphoethanolamine. PLoS One 2013; 8:e57937. [PMID: 23516420 PMCID: PMC3597720 DOI: 10.1371/journal.pone.0057937] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2012] [Accepted: 01/30/2013] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Renal cell carcinoma (RCC) is the most common type of kidney cancer, and represents the third most common urological malignancy. Despite the advent of targeted therapies for RCC and the improvement of the lifespan of patients, its cost-effectiveness restricted the therapeutic efficacy. In a recent report, we showed that synthetic phosphoethanolamine (Pho-s) has a broad antitumor activity on a variety of tumor cells and showed potent inhibitor effects on tumor progress in vivo. METHODOLOGY/PRINCIPAL FINDINGS We show that murine renal carcinoma (Renca) is more sensitive to Pho-s when compared to normal immortalized rat proximal tubule cells (IRPTC) and human umbilical vein endothelial cells (HUVEC). In vitro anti-angiogenic activity assays show that Pho-s inhibits endothelial cell proliferation, migration and tube formation. In addition, Pho-s has anti-proliferative effects on HUVEC by inducing a cell cycle arrest at the G2/M phase. It causes a decrease in cyclin D1 mRNA, VEGFR1 gene transcription and VEGFR1 receptor expression. Pho-s also induces nuclear fragmentation and affects the organization of the cytoskeleton through the disruption of actin filaments. Additionally, Pho-s induces apoptosis through the mitochondrial pathway. The putative therapeutic potential of Pho-s was validated in a renal carcinoma model, on which our remarkable in vivo results show that Pho-s potentially inhibits lung metastasis in nude mice, with a superior efficacy when compared to Sunitinib. CONCLUSIONS/SIGNIFICANCE Taken together, our findings provide evidence that Pho-s is a compound that potently inhibits lung metastasis, suggesting that it is a promising novel candidate drug for future developments.
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Affiliation(s)
- Adilson Kleber Ferreira
- Biochemistry and Biophysical Laboratory, Butantan Institute, Sao Paulo, Brazil
- Experimental Physiopathology, Faculty of Medicine, University of Sao Paulo, Sao Paulo, Brazil
| | - Vanessa Morais Freitas
- Department of Cell and Developmental Biology, University of Sao Paulo, Sao Paulo, Brazil
| | - Débora Levy
- Laboratory of Genetics and Molecular Hematology (LIM-31), Faculty of Medicine, University of Sao Paulo, Sao Paulo, Brazil
| | - Jorge Luiz Mária Ruiz
- Laboratory of Genetics and Molecular Hematology (LIM-31), Faculty of Medicine, University of Sao Paulo, Sao Paulo, Brazil
| | - Sergio Paulo Bydlowski
- Laboratory of Genetics and Molecular Hematology (LIM-31), Faculty of Medicine, University of Sao Paulo, Sao Paulo, Brazil
| | - Rose Eli Grassi Rici
- Department of Surgery, Faculty of the Veterinary Medicine and Zootecny, University of Sao Paulo, Sao Paulo, Brazil
| | | | | | - Durvanei Augusto Maria
- Biochemistry and Biophysical Laboratory, Butantan Institute, Sao Paulo, Brazil
- Experimental Physiopathology, Faculty of Medicine, University of Sao Paulo, Sao Paulo, Brazil
- * E-mail:
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Steponavicius-Cruz K, Freitas VM, Barbuto JAM. Abstract A70: Interactions between dendritic cells and T lymphocytes in a novel 3-D environment. Cancer Res 2013. [DOI: 10.1158/1538-7445.tumimm2012-a70] [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
Introduction: Dendritic cells (DCs) are the major antigen-presenting cells and, in situations of change in homeostasis, are able to initiate immune responses through the activation of T lymphocytes. Their immunomodulatory functions and generation in vitro are of great potential for immunotherapy of cancer. Among the many strategies under investigation, one, which our group has been using, is based on the fusion of DCs and tumor cells for therapeutic vaccination. To better understand the interactions between these fused DC-tumor cell hybrids and the different T cell populations, we are developing a three-dimensional (3D) culture system, whose first results are presented here.
Methods and Results: Monocytes of healthy donors were purified from PBMCs by magnetic beads selection and induced to differentiate into DCs by treatment with GM-CSF and IL-4. Maturation of monocyte-derived DCs (mMo-DCs) was initiated by addition of TNF-alpha 48 hours or 2.5 hours before analysis. Immature DCs were generated for 7 days in the absence of a maturation stimulus. Allogeneic T lymphocytes were purified from PBMCs by magnetic beads selection and were co-cultured for 17 hours in the 3D Biotek scaffold, at 37 °C. These scaffolds are made from polystyrene and have a thickness of 600 μm, fibers of 150 μm and pores of 200 μm. In this system, mMO-DCs TNF-activated for 2.5 h did not interact with allogeneic T lymphocytes, while those activated for 48 hours did. The average time of interaction between mMo-DCs and T lymphocytes was 4 hours, and the average speed of the T lymphocytes in the scaffold containing 48h-activated mMO-DCs was of 0.94 µm/min. Immature DCs interact with allogeneic T lymphocytes and the average time of interaction was 57 minutes. The average speed of the T lymphocytes in the scaffold containing immature DCs was of 0.93 µm/min.
Conclusions: These data indicate that this 3D Biotek scaffold enables interactions between mMO-DCs and lymphocytes and may be useful for the characterization of these interactions, the cellular subtypes and patterns of response induced. Financial Support: FAPESP (2010/18139-7; 2009/54599-5; CNPq).
Citation Format: Karen Steponavicius-Cruz, Vanessa Morais Freitas, José Alexandre Marzagão Barbuto. Interactions between dendritic cells and T lymphocytes in a novel 3-D environment. [abstract]. In: Proceedings of the AACR Special Conference on Tumor Immunology: Multidisciplinary Science Driving Basic and Clinical Advances; Dec 2-5, 2012; Miami, FL. Philadelphia (PA): AACR; Cancer Res 2013;73(1 Suppl):Abstract nr A70.
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Ionta M, Rosa MC, Almeida RB, Freitas VM, Rezende-Teixeira P, Machado-Santelli GM. Retinoic acid and cAMP inhibit rat hepatocellular carcinoma cell proliferation and enhance cell differentiation. Braz J Med Biol Res 2012; 45:721-9. [PMID: 22618858 PMCID: PMC3854244 DOI: 10.1590/s0100-879x2012007500087] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2011] [Accepted: 04/27/2012] [Indexed: 02/13/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is the third highest cause of cancer death worldwide. In general, the disease is diagnosed at an advanced stage when potentially curative therapies are no longer feasible. For this reason, it is very important to develop new therapeutic approaches. Retinoic acid (RA) is a natural derivative of vitamin A that regulates important biological processes including cell proliferation and differentiation. In vitro studies have shown that RA is effective in inhibiting growth of HCC cells; however, responsiveness to treatment varies among different HCC cell lines. The objective of the present study was to determine if the combined use of RA (0.1 µM) and cAMP (1 mM), an important second messenger, improves the responsiveness of HCC cells to RA treatment. We evaluated the proliferative behavior of an HCC cell line (HTC) and the expression profile of genes related to cancer signaling pathway (ERK and GSK-3β) and liver differentiation (E-cadherin, connexin 26 (Cx26), and Cx32). RA and cAMP were effective in inhibiting the proliferation of HTC cells independently of combined use. However, when a mixture of RA and cAMP was used, the signals concerning the degree of cell differentiation were increased. As demonstrated by Western blot, the treatment increased E-cadherin, Cx26, Cx32 and Ser9-GSK-3β (inactive form) expression while the expression of Cx43, Tyr216-GSK-3β (active form) and phosphorylated ERK decreased. Furthermore, telomerase activity was inhibited along treatment. Taken together, the results showed that the combined use of RA and cAMP is more effective in inducing differentiation of HTC cells.
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Affiliation(s)
- M Ionta
- Instituto de Ciências Biomédicas, Universidade Federal de Alfenas, Alfenas, MG, Brasil
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de Lima MDDM, Marques YMFS, Alves SDM, Freitas VM, Soares FA, de Araújo VC, Pinto DDS, Mantesso A. MDM2, P53, P21WAF1 and pAKT protein levels in genesis and behaviour of adenoid cystic carcinoma. Cancer Epidemiol 2009; 33:142-6. [PMID: 19679062 DOI: 10.1016/j.canep.2009.04.016] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2008] [Revised: 04/20/2009] [Accepted: 04/21/2009] [Indexed: 11/27/2022]
Abstract
BACKGROUND MDM2, P53, P21(WAF1) and pAKT are proteins associated with the balance between cell death and survival. There are many hypotheses regarding the role of these proteins in salivary gland tumours. However, many molecular events that activate or inactivate regulatory genes remain unknown. The aim of this study was to evaluate and to correlate MDM2, P53, P21(WAF1) and pAKT protein expressions in adenoid cystic carcinomas (ACC). METHODS Twenty-two cases of ACC were evaluated by immunohistochemistry and one cell line derived from ACC was analyzed by Western Blotting and immunofluorescence techniques. RESULTS Strong MDM2 and pAKT, variable P53 and null P21 expressions were found in the cases analyzed, but no statistical correlation was established when comparing MDM2 and pAKT expressions in the 3 different ACC subtypes. The ACC cell line showed intense nuclear and cytoplasmatic MDM2 and pAKT expressions and null P53 and P21 expressions. CONCLUSIONS Results indicate that MDM2 and pAKT are related to the tumorigenesis of ACC, but they might not be directly connected to tumour progression. We also demonstrate that the pAKT pathway is active in ACC and it seems to be activating the MDM2 shuttle from the cytoplasm to the nucleus, where it phosphorylates P53 and carries it to the cytoplasm for degradation.
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Morais Freitas V, Nogueira da Gama de Souza L, Cyreno Oliveira E, Furuse C, Cavalcanti de Araújo V, Gastaldoni Jaeger R. Malignancy-related 67kDa laminin receptor in adenoid cystic carcinoma. Effect on migration and beta-catenin expression. Oral Oncol 2007; 43:987-98. [PMID: 17257887 DOI: 10.1016/j.oraloncology.2006.11.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2006] [Revised: 11/07/2006] [Accepted: 11/08/2006] [Indexed: 10/23/2022]
Abstract
Adenoid cystic carcinoma is a malignant salivary gland neoplasm with recurrence and metastasis. We studied the expression of a malignancy-related non-integrin laminin receptor, the 67LR, in this neoplasm. Immunohistochemistry showed 67LR in adenoid cystic carcinoma. This receptor binds a sequence of laminin beta1 chain, the YIGSR peptide. We studied the effect of 67LR and YIGSR in cells (CAC2) from adenoid cystic carcinoma. Three-dimensional cultures of cells embedded into either laminin-111 gel (controls) or YIGSR-enriched laminin-111 (treated) were prepared and studied by light microscopy. CAC2 cells treated with YIGSR appeared fibroblast-like, while control cells were epithelioid. Blockage of 67LR by antibody abolished YIGSR effect in three-dimensional cultures. We analysed the relevance of 67LR and YIGSR on beta-catenin expression in CAC2 cells. Immunofluorescence and immunoblot showed that YIGSR decreased beta-catenin, while blockage of 67LR restored the presence of this molecule. The 67LR and YIGSR induced fibroblast-like morphology in CAC2 cells, with disruption of cell-cell contacts and decrease of beta-catenin. These features resemble epithelial-mesenchymal transition (EMT). EMT also increases cell migration. In monolayer assays YIGSR increased migration of CAC2 cells. We conclude that 67LR and YIGSR are involved in epithelial-mesenchymal transition, modulation of beta-catenin expression, and migratory activity of CAC2 cells.
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Affiliation(s)
- Vanessa Morais Freitas
- Department of Cellular and Developmental Biology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
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Pinheiro JJV, Freitas VM, Moretti AIS, Jorge AG, Jaeger RG. Local invasiveness of ameloblastoma. Role played by matrix metalloproteinases and proliferative activity. Histopathology 2004; 45:65-72. [PMID: 15228445 DOI: 10.1111/j.1365-2559.2004.01902.x] [Citation(s) in RCA: 90] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
AIMS Ameloblastoma is an odontogenic neoplasm characterized by local invasiveness and recurrence. In this study we analysed the role played by matrix metalloproteinases (MMPs) in the local invasiveness of ameloblastoma. We also attempted to establish a relationship between the presence of MMPs and the proliferative activity of ameloblastoma cells. METHODS AND RESULTS Immunohistochemistry was carried out to detect different MMPs in formalin-fixed paraffin-embedded samples of human ameloblastoma. Immunohistochemistry, however, does not establish whether a given MMP is latent or active. To address this point, we carried out biochemical methods, namely zymography and Western blotting. Our results showed expression of latent and active forms of MMPs 1, 2 and 9 in ameloblastoma. These enzymes may digest bone matrix and release mitogenic factors, which would increase tumour proliferation. This possibility prompted us to study the proliferation of ameloblastoma cells located in close proximity to bone. Silver-stained nucleolar organizer region morphometry revealed that ameloblastoma cells in the vicinity of bone show increased proliferation, when compared with controls. CONCLUSIONS Our results suggest an interdependent mechanism involving MMPs and proliferation of ameloblastoma cells, which may contribute to the local invasiveness of this tumour.
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Affiliation(s)
- J J V Pinheiro
- Department of Oral Pathology, School of Dentistry, University of São Paulo, São Paulo, Brazil
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Freitas VM, Scheremeta B, Hoffman MP, Jaeger RG. Laminin-1 and SIKVAV a laminin-1-derived peptide, regulate the morphology and protease activity of a human salivary gland adenoid cystic carcinoma cell line. Oral Oncol 2004; 40:483-9. [PMID: 15006619 DOI: 10.1016/j.oraloncology.2003.10.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2003] [Accepted: 10/01/2003] [Indexed: 11/17/2022]
Abstract
In a previous paper, we demonstrated that laminin-1 and its derived peptide SIKVAV modulates the morphology of an adenoid cystic carcinoma cell line (CAC2 cells). Light microscopy of CAC2 cells grown in three-dimensional preparations of SIKVAV-enriched laminin-1 showed the presence of pseudocystic spaces. Pseudocysts are hallmarks of adenoid cystic carcinoma in vivo. We hypothesized that these pseudocystic spaces could be due to the protease-inducing/activating role of SIKVAV. Thus, we studied the presence of matrix metalloproteinases (MMPs) in CAC2 cells treated either by laminin-1 or by SIKVAV-enriched laminin-1. Immunohistochemistry and zymography suggested that SIKVAV enhanced the secretion of MMP-2 and MMP-9 in CAC2 cells. We propose that SIKVAV induces pseudocystic formation probably through the secretion of MMPs 2 and 9.
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Affiliation(s)
- V M Freitas
- Department of Histology and Embryology, Institute of Biomedical Sciences, University of São Paulo, Av. Prof. Lineu Prestes 1524, São Paulo SP 05508-900, Brazil
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Freitas VM, Jaeger RG. The effect of laminin and its peptide SIKVAV on a human salivary gland adenoid cystic carcinoma cell line. Virchows Arch 2002; 441:569-76. [PMID: 12461614 DOI: 10.1007/s00428-002-0678-x] [Citation(s) in RCA: 18] [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] [Subscribe] [Scholar Register] [Received: 01/30/2002] [Accepted: 05/25/2002] [Indexed: 11/26/2022]
Abstract
We have previously demonstrated that laminin modulates the expression of adhesion molecules in an adenoid cystic carcinoma cell line (CAC2 cells). We are currently studying whether laminin can induce modifications in the overall morphology of CAC2 cells. These cells were grown in a three-dimensional preparation of laminin-1. Phenotype differences were assessed by light and transmission electron microscopy. CAC2 cells grown inside laminin-1 formed ductlike and pseudocystic structures. Based on our findings we suggest that laminin is a key regulator of tubular and pseudocystic patterns of adenoid cystic carcinoma. We also analyzed the effect of a molecular domain of laminin-1, the peptide SIKVAV (Ser-Ile-Lys-Val-Ala-Val) on CAC2 cells. This peptide was chosen because it is effective in cell proliferation and differentiation, and because it has never been tested before in salivary gland neoplasms. When CAC2 cells were grown inside SIKVAV-enriched laminin-1, only pseudocystic structures were observed. Since no ductlike structures were observed in samples treated with SIKVAV, we may assume that this peptide is at least one of the molecular domains of laminin responsible for the pseudocystic pattern observed in adenoid cystic carcinoma. Function disturbing experiments strongly suggested that the integrin alpha3beta1 play a role in the effect of laminin on CAC2 cells.
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Affiliation(s)
- Vanessa Morais Freitas
- Department of Oral Pathology, School of Dentistry, University of São Paulo, Av. Prof. Lineu Prestes 1524, Brazil
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Abstract
Adenoid cystic carcinoma of salivary glands is characterised by aggressive behaviour, high rate of local recurrences, neurotropism and late metastasis. In a previous work we demonstrated that adenoid cystic carcinoma cultured cells (CAC2 cells) expressed N-CAM. It was suggested that this expression, modulated by extracellular matrix, would be correlated to cell movement. The aim of our study was to verify whether CAC2 cells presented invasion capacity. Moreover, we tested whether the neural adhesion molecule (N-CAM) would participate in this process. CAC2 cells were either previously treated, or not (control), with a monoclonal antibody against N-CAM. Invasion assays were carried out using a modified Boyden chamber (Transwell chamber). CAC2 cells (10(5)) were dispensed into Transwell upper chamber on the top of Matrigel coated filter. The cells that invaded the filters in the first 8 h were counted under light microscopy, yielding data for the invasion rates (%). Control CAC2 cells presented an invasion rate of 5.28+/-0.04%. The invasion rate raised to 6.53+/-0.2% when N-CAM was blocked with monoclonal antibody. N-CAM impaired the adenoid cystic carcinoma cell invasion in vitro. Therefore, we suggest an anti-invasive role for N-CAM in adenoid cystic carcinoma.
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Affiliation(s)
- C M França
- Universidade de São Paulo, Faculdade de Odontologia, Disciplina de Patologia Bucal, Av. Prof. Lineu Prestes, 2227, 05508-900 São Paulo-SP, Brazil
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