Marcadores de senescencia celular en cáncer y precáncer oral / Cellular senescence markers in oral cancer and precancer
Av. odontoestomatol
; 24(1): 69-80, ene.-feb. 2008. ilus, tab
Article
em Es
| IBECS
| ID: ibc-62948
Biblioteca responsável:
ES15.1
Localização: ES15.1 - BNCS
Estudios recientes han demostrado la capacidad del organismo humano para detener el crecimiento de potenciales células cancerígenas y paralizarlas. Este mecanismo antitumoral, que actúa como freno del proceso maligno, se conocía ya en estudios de laboratorio in vitro, pero se ha comprobado también su presencia en modelos in vivo, tanto en ratones como en muestras de tejido de pacientes con cáncer. A este mecanismo se le denomina senescencia celular y se define como un sistema de defensa de emergencia de las células que están en camino de convertirse en cancerosas, una respuesta ante el estímulo de un oncogén. Se trataría pues de un freno a la progresión de las lesiones cancerizables, condenando a esas células a una cadena perpetua celular. Este artículo de revisión se propone describir este mecanismo y poner al día la evidencia al respecto de este proceso, así como los marcadores de senescencia existentes en relación con el cáncer y precáncer oral This article reviews the paper of oral biopsy on the precancerous lesions diagnosis and on the oral cancer early diagnosis. Different techniques, procedures, materials, indications and other surgical aspects are debated. It proposes to do incisional biopsies on malignant lesions and on malignant suspicious lesions, while doing excisional biopsies on precancerous lesions when the size allows it ( AU)
Recent studies have demonstrated the capacity of the human organism to prevent the growth of potentially carcinogenic cells, paralyzing them. This antitumor mechanism, which acts as a brake on the malignant process, was already known in lab studies in vitro but has now also been verified in vivo in mice and in tissue samples from cancer patients. This mechanism is known as cellular senescence and is defined as an emergency defense system for cells on the way to becoming cancerous, i.e., a response to the stimulation of an oncogene. These cells are sentenced to life imprisonment, impeding the progression of premalignant lesions. This review aims to describe this mechanism and present an update of the evidence on this phenomenon in the setting of oral cancer and precance This article reviews the paper of oral biopsy on the precancerous lesions diagnosis and on the oral cancer early diagnosis. Different techniques, procedures, materials, indications and other surgical aspects are debated. It proposes to do incisional biopsies on malignant lesions and on malignant suspicious lesions, while doing excisional biopsies on precancerous lesions when the size allows it (AU)
Recent studies have demonstrated the capacity of the human organism to prevent the growth of potentially carcinogenic cells, paralyzing them. This antitumor mechanism, which acts as a brake on the malignant process, was already known in lab studies in vitro but has now also been verified in vivo in mice and in tissue samples from cancer patients. This mechanism is known as cellular senescence and is defined as an emergency defense system for cells on the way to becoming cancerous, i.e., a response to the stimulation of an oncogene. These cells are sentenced to life imprisonment, impeding the progression of premalignant lesions. This review aims to describe this mechanism and present an update of the evidence on this phenomenon in the setting of oral cancer and precance This article reviews the paper of oral biopsy on the precancerous lesions diagnosis and on the oral cancer early diagnosis. Different techniques, procedures, materials, indications and other surgical aspects are debated. It proposes to do incisional biopsies on malignant lesions and on malignant suspicious lesions, while doing excisional biopsies on precancerous lesions when the size allows it (AU)
Texto completo:
1
Coleções:
06-national
/
ES
Base de dados:
IBECS
Assunto principal:
Neoplasias Bucais
/
Biomarcadores
/
Senescência Celular
Tipo de estudo:
Prognostic_studies
/
Screening_studies
Idioma:
Es
Revista:
Av. odontoestomatol
Ano de publicação:
2008
Tipo de documento:
Article