2010
DOI: 10.1590/s1676-24442010000600009
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BRAF mutations in cutaneous melanoma: no correlation with histological prognostic factors or overall survival

Abstract: Introduction: Molecular biology techniques allow identification of molecular markers such as BRAF and c-Kit gene mutations in melanomas. Studies on genetic alterations in melanomas of South-American patients are sparse. Objectives: To identify the incidence of BRAF and c-Kit gene mutations in primary cutaneous melanomas in Brazilian patients and to evaluate pathogenetic and prognostic implications of these mutations correlating them with clinical and histopathological data. Material and methods: Ninety-six sur… Show more

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Cited by 7 publications
(11 citation statements)
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References 27 publications
(34 reference statements)
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“…In contrast to some previous studies (Saldanha et al, 2006;Liu et al, 2007;Jung et al, 2010), our results did not demonstrate any significant association between the presence of the BRAF V600E mutation and chronic or intermittent sun exposure. Hacker et al (2010) did not detect any difference in the frequency of this mutation between melanomas of the head and neck and those on the trunk and limb; parts of the body that are considered to be exposed to different levels of sun.…”
Section: Discussioncontrasting
confidence: 99%
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“…In contrast to some previous studies (Saldanha et al, 2006;Liu et al, 2007;Jung et al, 2010), our results did not demonstrate any significant association between the presence of the BRAF V600E mutation and chronic or intermittent sun exposure. Hacker et al (2010) did not detect any difference in the frequency of this mutation between melanomas of the head and neck and those on the trunk and limb; parts of the body that are considered to be exposed to different levels of sun.…”
Section: Discussioncontrasting
confidence: 99%
“…In agreement with results of previous studies (Jung et al, 2010;Long et al, 2011;Lee et al, 2011), we conclude that the BRAF V600E mutation should not influence a melanoma patient's prognosis, since no association was found between this mutation and important prognostic parameters, such as Breslow depth, gender, ulceration, age, and histological subtype. However, survival analysis might better define this association.…”
Section: Discussionsupporting
confidence: 91%
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“…A Figura 4ilustra os mecanismos relacionados à via de sinalizçaão dos receptores KIT. As mutações no gene que codifica o c-KIT fazem com que seu ligante específico não seja mais necessário, resultando em proteínas constitutivamente ativas e o c-KIT passa a sinalizar independentemente de seu ligante(Jung et al, 2010). Estudos estruturais e funcionais detalhados de RTK, incluindo o gene KIT, revelaram a complexidade desses sistemas receptores e contribuíram para o desenvolvimento de abordagens clínicas específicas, com importância para o prognóstico e tratamento(Satzger et al, 2008) A via de sinalização KIT tem sido objeto de intensa pesquisa e estratégias farmacêuticas para identificar novas abordagens baseadas em evidências para o tratamento do câncer.…”
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