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Morphometric evaluation of NB84, synaptophysin and AgNOR is useful for the histological diagnosis and prognosis in peripheral neuroblastic tumors (pNTs)
Carvalho, Aparecida de Cássia; Parra, Edwin Roger; Zerbini, Maria Cláudia; Alves, Venâncio Avancini Ferreira; Capelozzi, Vera Luiza; Antonangelo, Leila.
Affiliation
  • Carvalho, Aparecida de Cássia; University of São Paulo. School of Medicine. Department of Pathology. São Paulo. BR
  • Parra, Edwin Roger; University of São Paulo. School of Medicine. Department of Pathology. São Paulo. BR
  • Zerbini, Maria Cláudia; University of São Paulo. School of Medicine. Clinical Hospital. Pediatric Institute. São Paulo. BR
  • Alves, Venâncio Avancini Ferreira; Institute Adolfo Lutz. Department of Pathology. São Paulo. BR
  • Capelozzi, Vera Luiza; University of São Paulo. School of Medicine. Department of Pathology. São Paulo. BR
  • Antonangelo, Leila; University of São Paulo. School of Medicine. Department of Pathology. São Paulo. BR
Clinics ; Clinics;62(6): 731-740, 2007. ilus, tab
Article ي En | LILACS | ID: lil-471793
المكتبة المسؤولة: BR1.1
ABSTRACT

OBJECTIVE:

To study the importance of NB84, synaptophysin and AgNOR and explore the quantitative association of these factors with diagnosis and outcome as well as the association between NB84 and AgNOR and other tumor and stromal factors in twenty-eight peripheral neuroblastic tumors.

METHODS:

We assessed AgNORs, NB84, synaptophysin and several other markers in tumor tissues from 28 patients with primary neuroblastic tumors. The treatment included surgery for stage 1, chemotherapy and bone marrow transplantation for most of stages 3 and 4. Histochemistry, immunohistochemistry and morphometry were used to evaluate the amount of tumor staining for AgNOR, NB84 and synaptophysin; the outcome for our study was survival time until death due to recurrent neuroblastic tumors.

RESULTS:

Only stage (p<0.01), AgNOR (p<0.01), NB84 (p<0.01) and synaptophysin (p=0.01) reached statistical significance as prognostic indicators.

CONCLUSIONS:

Determination of NB84 and synaptophysin are useful tools for the diagnosis of peripheral neuroblastic tumors The association of the evaluation of AgNOR expression by the tumor cells may provide an important contribution to the prognostic evaluation and management approach of the patients.
RESUMO

OBJETIVO:

Estudar a importância dos marcadores NB84 e AgNOR e explorar as relações quantitativas entre esses marcadores com o diagnóstico e prognóstico assim como as relações entre NB84 e AgNOR e outros marcadores tumorais e estromais em 28 tumores neuroblásticos periféricos.

MÉTODOS:

Examinamos AgNOR, NB84 e sinaptofisina e vários outros marcadores em tecidos tumorais de vinte e oito pacientes com tumors neuroblásticos primários. Tratamento dos pacientes incluiu cirurgia para o estágio 1, quimioterapia e transplante de medula óssea para a maioria dos pacientes nos estágios 3 e 4. Utilizamos histoquímica, imunohistoquímica e morfometria para avaliar a intensidade e extensão de expressão do AgNOR, NB84 e sinaptofisina, tendo o prognóstico dos pacientes incluído o tempo de sobrevida até a morte por recurrência dos tumores neuroblásticos.

RESULTADOS:

Estadiamento (p<0.01), AgNOR (p<0.01), NB84 (p<0.01) e sinaptofisina (p=0.01) foram marcadores independents de sobrevida.

CONCLUSÕES:

A determinação dos marcadores NB84 e sinaptofisina mostrou-se como uma ferramenta útil no diagnóstico dos tumors neuroblásticos periféricos; a associação desses marcadores à expressão de AgNOR pelas células tumorais contribuiu à determinação do prognóstico e estabelecimento do protocolo terapêutico para os pacientes.
الموضوعات
Key words
النص الكامل: 1 الفهرس: LILACS الموضوع الرئيسي: Peripheral Nervous System Neoplasms / Synaptophysin / Antigens, Nuclear / Antibodies, Monoclonal / Antibodies, Neoplasm / Antigens, Neoplasm / Neuroblastoma نوع الدراسة: Diagnostic_studies / Evaluation_studies / Guideline / Prognostic_studies المحددات: Child / Child, preschool / Humans / Infant البلد/الأقليم حسب الموضوع: America do sul / Brasil اللغة: En مجلة: Clinics / Clinics (Online) / Clinics (Sao Paulo) / Clinics (Sao Paulo. Impresso) موضوع المجلة: MEDICINA السنة: 2007 نوع: Article / Project document
النص الكامل: 1 الفهرس: LILACS الموضوع الرئيسي: Peripheral Nervous System Neoplasms / Synaptophysin / Antigens, Nuclear / Antibodies, Monoclonal / Antibodies, Neoplasm / Antigens, Neoplasm / Neuroblastoma نوع الدراسة: Diagnostic_studies / Evaluation_studies / Guideline / Prognostic_studies المحددات: Child / Child, preschool / Humans / Infant البلد/الأقليم حسب الموضوع: America do sul / Brasil اللغة: En مجلة: Clinics / Clinics (Online) / Clinics (Sao Paulo) / Clinics (Sao Paulo. Impresso) موضوع المجلة: MEDICINA السنة: 2007 نوع: Article / Project document