Video Experimental Relacionado
Updated: Jun 6, 2026
09:37
Defining Gene Functions in Tumorigenesis by Ex vivo Ablation of Floxed Alleles in Malignant Peripheral Nerve Sheath Tumor Cells
Published on: August 25, 2021
El control del interruptor metabólico en los cánceres por oncogenes y genes supresores de tumores
Arnold J Levine1, Anna M Puzio-Kuter
1Institute for Advanced Study, Princeton, NJ 08540, USA. alevine@ias.edu
Science (New York, N.Y.)
|December 4, 2010
Resumen
Las células cancerosas exhiben el efecto Warburg, utilizando la glucólisis aeróbica para el crecimiento en lugar de la fosforilación oxidativa. Este cambio metabólico, regulado por los oncogenes, ofrece nuevas estrategias potenciales de tratamiento del cáncer al dirigirse a estas vías.
Área de la Ciencia:
- La bioquímica es la bioquímica.
- Biología celular Biología celular.
- Oncología Oncología Oncología.
Sus antecedentes:
- Las células tumorales exhiben patrones metabólicos distintos en comparación con las células adultas normales.
- Este metabolismo alterado implica un aumento de la absorción de glucosa y la glucólisis aeróbica, produciendo lactato.
- Este fenómeno es conocido como el efecto Warburg, crucial para la proliferación de células cancerosas.
Objetivo del estudio:
- Para explicar el efecto Warburg y su papel en el metabolismo de las células cancerosas.
- Para resaltar los mecanismos reguladores que involucran oncogenes y genes supresores de tumores.
- Proponer dirigirse a estas vías metabólicas como una nueva estrategia de tratamiento del cáncer.
Principales métodos:
- Análisis comparativo del metabolismo celular en el tumor frente a las células normales.
- Investigación de las vías del metabolismo de la glucosa, incluida la glucólisis aeróbica y la fosforilación oxidativa.
- Examen del papel de los oncogenes y los genes supresores de tumores en la regulación del metabolismo del cáncer.
Principales resultados:
- Las células tumorales usan preferentemente la glucólisis aeróbica, lo que lleva a una alta producción de lactato.
- Este interruptor metabólico apoya la producción de sustratos para el crecimiento y división celular.
- El efecto Warburg está estrechamente regulado por los genes clave relacionados con el cáncer.
Conclusiones:
- El efecto Warburg es una alteración metabólica fundamental en el cáncer.
- Dirigirse a las vías metabólicas específicas del cáncer presenta una vía terapéutica prometedora.
- Restaurar la función metabólica normal podría ser una estrategia para el tratamiento del cáncer.
Videos de Conceptos Relacionados
01:05Cancer-Critical Genes II: Tumor Suppressor Genes
Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, thereby altering the phenotype.
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
01:05Cancer-Critical Genes II: Tumor Suppressor Genes
Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, thereby altering the phenotype.
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
01:33Cancer-Critical Genes I: Proto-oncogenes
Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, thereby altering the phenotype.
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
01:33Cancer-Critical Genes I: Proto-oncogenes
Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, thereby altering the phenotype.
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
01:12Loss of Tumor Suppressor Gene Functions
Tumor suppressor genes are normal genes that can slow down cell division, repair DNA mistakes, or program the cells for apoptosis in case of irreparable damage. Hence, they play an essential role in preventing the proliferation of damaged cells.
When the tumor suppressor genes develop mutations or are lost, cells start growing out of control, leading to cancer. However, a single functional copy of the tumor suppressor gene is enough for the cells to maintain their normal functions and cell...
When the tumor suppressor genes develop mutations or are lost, cells start growing out of control, leading to cancer. However, a single functional copy of the tumor suppressor gene is enough for the cells to maintain their normal functions and cell...
01:12Loss of Tumor Suppressor Gene Functions
Tumor suppressor genes are normal genes that can slow down cell division, repair DNA mistakes, or program the cells for apoptosis in case of irreparable damage. Hence, they play an essential role in preventing the proliferation of damaged cells.
When the tumor suppressor genes develop mutations or are lost, cells start growing out of control, leading to cancer. However, a single functional copy of the tumor suppressor gene is enough for the cells to maintain their normal functions and cell...
When the tumor suppressor genes develop mutations or are lost, cells start growing out of control, leading to cancer. However, a single functional copy of the tumor suppressor gene is enough for the cells to maintain their normal functions and cell...