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Estudo Geral
Master thesis . 2013
Data sources: Estudo Geral
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Osteossarcoma : novas terapêuticas

Authors: Ferreira, Ana Rita de Jesus Lopes;

Osteossarcoma : novas terapêuticas

Abstract

O osteossarcoma é o tumor ósseo maligno primário mais comum em crianças e adolescentes. É a segunda maior causa de morte relacionada com o cancro nestes grupos etários, principalmente devido ao desenvolvimento de metástases, muitas vezes fatais, geralmente nos pulmões. Apesar de uma gestão terapêutica agressiva, incluindo cirurgias de salvamento de membros e dose intensas de quimioterapia sistémica, 30-40% dos pacientes irá sofrer de doença metastática progressiva no prazo de 5 anos após o diagnóstico. Assim, novas drogas eficazes e outras formas de terapia são necessárias. O objetivo deste artigo de revisão consiste em abordar o tratamento atual do osteossarcoma de alto grau, ou "convencional", e destacar as modalidades terapêuticas emergentes no horizonte. Este artigo incidirá sobre novas abordagens terapêuticas, incluindo agentes que têm como alvos factores ligados ao osso / fenótipo mesenquimal, agentes direccionados para impedir o processo metastático e agentes cujo alvo são as lesões metastáticas já estabelecidas. Num outro grupo, estão incluídos os fármacos que se encontram em desenvolvimento com o objetivo de superar a resistência à quimioterapia atual. Dos fármacos abordados, foi destacado o Mifamurtide por ter sido o primeiro novo agente a ser aprovado para o tratamento do OS em mais de duas décadas. No tratamento de doentes recentemente diagnosticados com osteossarcoma, a adição de mifamurtide foi associada a uma redução do risco de morte em um terço

Osteosarcoma is the most common malignant primary bone tumor in children and adolescents. It is the second highest cause of cancer-related death in these age groups, mainly due to development of often fatal metastasis, usually in the lungs. Despite aggressive therapeutic management, including limb-sparing surgeries and dose-intense systemic chemotherapies, 30-40% of patients will experience progressive metastatic disease within 5 years of diagnosis. Thus, new effective drugs and other forms of therapy are needed. The objective of this review is to cover the current treatment of high-grade, or “conventional”, osteosarcoma, and highlight the emerging therapeutic modalities on the horizon. This article will focus on novel therapeutic approaches, including agents that act against factors related to bone / mesenchymal phenotype, agents to preventing the metastatic process and agents that act against established metastatic lesions. In another group, are included drugs that are being developed in order to overcome resistance to current chemotherapy. Of all the drugs covered, Mifamurtide was highlighted because has been the first new agent to be approved for the treatment of OS in more than two decades. In the treatment of newly diagnosed patients with osteosarcoma, adding mifamurtide was associated with a reduced risk of death by one third

Trabalho final de mestrado integrado em Medicina área científica de Ortopedia, apresentado á Faculdade de Medicina da Universidade de Coimbra

Country
Portugal
Related Organizations
Keywords

Terapêutica, Osteossarcoma, Domínio/Área Científica::Ciências Médicas

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green
Related to Research communities
Cancer Research