A 30-year long-term experience in appendix neuroendocrine neoplasms—granting a positive outcome
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/1822/65869 |
Resumo: | Neuroendocrine neoplasms (NENs) are the most common tumor of the appendix and have an excellent prognosis. Appendiceal tumors diagnosed between 1989 and 2019 were reviewed, and clinical data were collected from patient files. Part of the series was immuno-profiled for markers related to cell cycle proliferation and/or senescence-type, apoptotic, and metastatic potential. Appendix NENs were detected in 74 patients, with 0.47% of incidence per appendectomy. The median age of the patients was 21.5 years, with two age peaks of incidence at 17.0 and 55.2 years. The median tumors size was 5.8 mm, and most were smaller than 10 mm. Lymphovascular and perineural invasion, as well as necrosis, was associated with larger tumor size. G1 tumors composed 96.0% of the cohort. The presence of moderate/strong p16 and the absent/low Bcl-2 expression was frequently observed and associated with a smaller size. This study represents one of the largest cohorts and with a long follow-up. For tumors smaller than 10 mm appendicectomy was sufficient as a curative procedure, as revealed by the good outcome. This series presented a 100% disease-free survival. The indolent phenotype of appendix NENs is supported by the expression of markers that point towards a strong inhibition of cell replication and growth inhibition. |
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A 30-year long-term experience in appendix neuroendocrine neoplasms—granting a positive outcomeAppendix neuroendocrine neoplasmCarcinoidCell cycleIndolentScience & TechnologyNeuroendocrine neoplasms (NENs) are the most common tumor of the appendix and have an excellent prognosis. Appendiceal tumors diagnosed between 1989 and 2019 were reviewed, and clinical data were collected from patient files. Part of the series was immuno-profiled for markers related to cell cycle proliferation and/or senescence-type, apoptotic, and metastatic potential. Appendix NENs were detected in 74 patients, with 0.47% of incidence per appendectomy. The median age of the patients was 21.5 years, with two age peaks of incidence at 17.0 and 55.2 years. The median tumors size was 5.8 mm, and most were smaller than 10 mm. Lymphovascular and perineural invasion, as well as necrosis, was associated with larger tumor size. G1 tumors composed 96.0% of the cohort. The presence of moderate/strong p16 and the absent/low Bcl-2 expression was frequently observed and associated with a smaller size. This study represents one of the largest cohorts and with a long follow-up. For tumors smaller than 10 mm appendicectomy was sufficient as a curative procedure, as revealed by the good outcome. This series presented a 100% disease-free survival. The indolent phenotype of appendix NENs is supported by the expression of markers that point towards a strong inhibition of cell replication and growth inhibition.This study was supported by FCT—Fundação para a Ciência e a Tecnologia, Ministério da Ciência, Tecnologia e Ensino Superior by a research contract to João Vinagre (CEECIND/00201/2017). Further funding was obtained from the project “Advancing cancer research: from basic knowledge to application” NORTE-01-0145-FEDER-000029: “Projetos Estruturados de I & D & I”, funded by Norte 2020—Programa Operacional Regional do Norte. Additional funding was obtained from the project PTDC/MED-ONC/31438/2017 (The other faces of Telomerase: Looking beyond tumor immortalization), supported by Norte Portugal Regional Operational Programme (NORTE 2020), under the PORTUGAL 2020 Partnership Agreement, through the European Regional Development Fund (ERDF), COMPETE 2020—Operational Programme for Competitiveness and Internationalization (POCI) and by Portuguese funds through FCT under project POCI-01-0145-FEDER-016390: CANCEL STEM”.Multidisciplinary Digital Publishing InstituteUniversidade do MinhoVinagre, JoãoPinheiro, JorgeMartinho, OlgaReis, Rui ManuelPreto, JohnSoares, PaulaLopes, José Manuel2020-05-262020-05-26T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/65869engVinagre, J.; Pinheiro, J.; Martinho, O.; Reis, R.M.; Preto, J.; Soares, P.; Lopes, J.M. A 30-Year Long-Term Experience in Appendix Neuroendocrine Neoplasms—Granting a Positive Outcome. Cancers 2020, 12, 1357.2072-669410.3390/cancers12061357https://www.mdpi.com/2072-6694/12/6/1357info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:12:50Zoai:repositorium.sdum.uminho.pt:1822/65869Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:04:50.548522Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
A 30-year long-term experience in appendix neuroendocrine neoplasms—granting a positive outcome |
title |
A 30-year long-term experience in appendix neuroendocrine neoplasms—granting a positive outcome |
spellingShingle |
A 30-year long-term experience in appendix neuroendocrine neoplasms—granting a positive outcome Vinagre, João Appendix neuroendocrine neoplasm Carcinoid Cell cycle Indolent Science & Technology |
title_short |
A 30-year long-term experience in appendix neuroendocrine neoplasms—granting a positive outcome |
title_full |
A 30-year long-term experience in appendix neuroendocrine neoplasms—granting a positive outcome |
title_fullStr |
A 30-year long-term experience in appendix neuroendocrine neoplasms—granting a positive outcome |
title_full_unstemmed |
A 30-year long-term experience in appendix neuroendocrine neoplasms—granting a positive outcome |
title_sort |
A 30-year long-term experience in appendix neuroendocrine neoplasms—granting a positive outcome |
author |
Vinagre, João |
author_facet |
Vinagre, João Pinheiro, Jorge Martinho, Olga Reis, Rui Manuel Preto, John Soares, Paula Lopes, José Manuel |
author_role |
author |
author2 |
Pinheiro, Jorge Martinho, Olga Reis, Rui Manuel Preto, John Soares, Paula Lopes, José Manuel |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Vinagre, João Pinheiro, Jorge Martinho, Olga Reis, Rui Manuel Preto, John Soares, Paula Lopes, José Manuel |
dc.subject.por.fl_str_mv |
Appendix neuroendocrine neoplasm Carcinoid Cell cycle Indolent Science & Technology |
topic |
Appendix neuroendocrine neoplasm Carcinoid Cell cycle Indolent Science & Technology |
description |
Neuroendocrine neoplasms (NENs) are the most common tumor of the appendix and have an excellent prognosis. Appendiceal tumors diagnosed between 1989 and 2019 were reviewed, and clinical data were collected from patient files. Part of the series was immuno-profiled for markers related to cell cycle proliferation and/or senescence-type, apoptotic, and metastatic potential. Appendix NENs were detected in 74 patients, with 0.47% of incidence per appendectomy. The median age of the patients was 21.5 years, with two age peaks of incidence at 17.0 and 55.2 years. The median tumors size was 5.8 mm, and most were smaller than 10 mm. Lymphovascular and perineural invasion, as well as necrosis, was associated with larger tumor size. G1 tumors composed 96.0% of the cohort. The presence of moderate/strong p16 and the absent/low Bcl-2 expression was frequently observed and associated with a smaller size. This study represents one of the largest cohorts and with a long follow-up. For tumors smaller than 10 mm appendicectomy was sufficient as a curative procedure, as revealed by the good outcome. This series presented a 100% disease-free survival. The indolent phenotype of appendix NENs is supported by the expression of markers that point towards a strong inhibition of cell replication and growth inhibition. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-05-26 2020-05-26T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/1822/65869 |
url |
http://hdl.handle.net/1822/65869 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Vinagre, J.; Pinheiro, J.; Martinho, O.; Reis, R.M.; Preto, J.; Soares, P.; Lopes, J.M. A 30-Year Long-Term Experience in Appendix Neuroendocrine Neoplasms—Granting a Positive Outcome. Cancers 2020, 12, 1357. 2072-6694 10.3390/cancers12061357 https://www.mdpi.com/2072-6694/12/6/1357 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Multidisciplinary Digital Publishing Institute |
publisher.none.fl_str_mv |
Multidisciplinary Digital Publishing Institute |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799132458259578880 |