Video Experimental Relacionado
Updated: May 6, 2026

08:18
Focus Formation: A Cell-based Assay to Determine the Oncogenic Potential of a Gene
Published on: December 31, 2014
27.7K
El MYC negativo dominante bloquea la transformación por los oncogenes ABL
C L Sawyers1, W Callahan, O N Witte
1Department of Medicine, Howard Hughes Medical Institute, University of California, Los Angeles 90024.
Cell
|September 18, 1992
Resumen
Los altos niveles de MYC sinergizan con los oncogenes ABL. El MYC negativo dominante suprimió la transformación inducida por ABL, demostrando c-MYC.
Área de la Ciencia:
- La oncogenómica es la oncogenómica.
- Transformación Celular Transformación Celular
- Biología Molecular Biología Molecular
Sus antecedentes:
- La expresión del oncogén MYC a menudo sinergiza con los oncogenes ABL.
- El papel preciso de MYC en la transformación mediada por ABL requiere una mayor aclaración.
Objetivo del estudio:
- Investigar si el MYC es esencial para la transformación celular impulsada por oncogenes de ABL.
- Para determinar si MYC complementa o es indispensable para la transformación oncogénica de ABL.
Principales métodos:
- Sobreexpresión de las proteínas MYC dominantes-negativas en los fibroblastos.
- Evaluación del impacto del MYC negativo dominante en la transformación inducida por los oncogenes v-abl y BCR-ABL.
- Evaluación de la transformación de células pre-B de médula ósea primaria de ratón utilizando construcciones retrovirales que coexpresan BCR-ABL y MYC.
Principales resultados:
- El MYC negativo dominante redujo la transformación por los oncogenes v-abl y BCR-ABL de 5 a 10 veces.
- La transformación inducida por el oncogén v-mos de la serina/treonina quinasa no se vio afectada.
- Dominant-negativo MYC suprimió la transformación mediada por BCR-ABL de las células pre-B de médula ósea primaria de ratón.
Conclusiones:
- c-MYC es esencial para la transformación celular mediada por oncogenes de ABL.
- Estos hallazgos ayudan a definir la vía molecular que involucra a MYC y ABL en la oncogénesis.
Videos de Conceptos Relacionados
Abnormal Proliferation
4.0K
Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the...
4.0K
Loss of Tumor Suppressor Gene Functions
5.0K
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...
5.0K
Targeted Cancer Therapies
7.1K
The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against...
There are several types of targeted therapies against...
7.1K
Anaphase Promoting Complex
2.5K
The stepwise destruction of specific proteins is necessary for the progression and completion of the cell cycle. Such proteins are ubiquitinated by ubiquitin ligases and then subsequently destroyed by the proteasome. The SCF (Skp1/Cullin/F-box) and the anaphase-promoting complex (APC) are two important ubiquitin ligases involved in cell cycle progression. While SCF is active throughout the cell cycle, APC gets activated during metaphase to anaphase transition. Cdc20 or Cdh1 binds to APC and...
2.5K
Cancer-Critical Genes II: Tumor Suppressor Genes
8.3K
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...
8.3K
Induced Pluripotent Stem Cells
4.8K
Stem cells are undifferentiated cells that divide and produce different cell types. Ordinarily, cells that have differentiated into a specific cell type are terminally differentiated; however, scientists have found a way to reprogram these mature cells so that they dedifferentiate and return to an unspecialized, proliferative state. These cells are pluripotent like embryonic stem cells—able to produce all cell types—and are called induced pluripotent stem cells (iPSCs).
Somatic...
Somatic...
4.8K

