Video Experimental Relacionado

Updated: Jan 26, 2026

Non-Invasive Ultrasound Assessment of Endometrial Cancer Progression in Pax8-Directed Deletion of the Tumor Suppressors Arid1a and Pten in Mice

Non-Invasive Ultrasound Assessment of Endometrial Cancer Progression in Pax8-Directed Deletion of the Tumor Suppressors Arid1a and Pten in Mice

Published on: February 17, 2023

Los principios de la supresión de tumores PTEN

Leonardo Salmena¹, Arkaitz Carracedo, Pier Paolo Pandolfi

¹Cancer Genetics Program, Beth Israel Deaconess Cancer Center, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, New Research Building, 330 Brookline Avenue, Boston, MA 02115, USA.

|May 6, 2008

Resumen

El homólogo de la fosfatasa y la tensina (PTEN) es un gen supresor de tumores crucial. Esta revisión cubre las PTEN.

Área de la Ciencia:

Oncología Oncología.
Biología Molecular Biología Molecular
La bioquímica es la bioquímica.

Sus antecedentes:

PTEN, un gen supresor de tumores en 10q23, se pierde o muta con frecuencia en varios tipos de cáncer.
PTEN actúa como una fosfatasa crítica que regula la vía PI3K / AKT, lo que promueve la supervivencia de las células cancerosas.

Objetivo del estudio:

Revisar las funciones emergentes y los mecanismos regulatorios de las PTEN.
Explorar el potencial terapéutico de la manipulación de PTEN en el tratamiento del cáncer.

Principales métodos:

Revisión de la literatura sobre la investigación de las PTEN.
Análisis del papel de PTEN en las vías de señalización del cáncer.

Principales resultados:

PTEN es un regulador no redundante de la vía oncogénica PI3K/AKT.
La pérdida o mutación de PTEN está relacionada con el desarrollo de tumores.

Conclusiones:

Comprender las diversas funciones de PTEN es clave para desarrollar nuevas terapias contra el cáncer.
Dirigirse a PTEN presenta una estrategia prometedora para el futuro tratamiento del cáncer.

Más Videos Relacionados

Analysis of Lymph Node Volume by Ultra-High-Frequency Ultrasound Imaging in the Braf/Pten Genetically Engineered Mouse Model of Melanoma

Analysis of Lymph Node Volume by Ultra-High-Frequency Ultrasound Imaging in the Braf/Pten Genetically Engineered Mouse Model of Melanoma

Published on: September 8, 2021

Real Time Detection of In Vitro Tumor Cell Apoptosis Induced by CD8+ T Cells to Study Immune Suppressive Functions of Tumor-infiltrating Myeloid Cells

Real Time Detection of In Vitro Tumor Cell Apoptosis Induced by CD8+ T Cells to Study Immune Suppressive Functions of Tumor-infiltrating Myeloid Cells

Published on: January 29, 2019

Videos de Conceptos Relacionados

Acid Suppressive Drugs for Peptic Ulcer Disease: Antacids

Acid Suppressive Drugs for Peptic Ulcer Disease: Antacids

In the complex environment of the gastric lumen, excessive acid secretion can lead to the formation or worsening of ulcers within the delicate mucosal layer. Antacids, such as sodium bicarbonate and calcium carbonate, provide relief by neutralizing this acid, transforming it into harmless salt and water. This neutralization process raises the gastric pH from a highly acidic level of 1 to a more basic 3-4, reducing the acidity within the stomach.
However, this neutralization reaction between...

Acid Suppressive Drugs for Peptic Ulcer Disease: Proton Pump Inhibitors

Acid Suppressive Drugs for Peptic Ulcer Disease: Proton Pump Inhibitors

Peptic ulcers, often induced by H. pylori infections or NSAID usage, arise from disruptions in the delicate balance of gastric acid production. Peptic ulcers stem from heightened gastric acid levels due to H. pylori infections or NSAID use. The protective mucus layer diminishes in the presence of these factors, allowing gastric acid to erode the stomach lining and form ulcers.
Gastric acid, a potent cocktail of hydrogen and chloride ions, is produced in specialized parietal cells within the...

Acid Suppressive Drugs for Peptic Ulcer Disease: Histamine H2-Receptor Antagonists

Acid Suppressive Drugs for Peptic Ulcer Disease: Histamine H2-Receptor Antagonists

Histamine H2 receptors, which are intricately located on the basolateral membrane of parietal cells, play a crucial role in modulating gastric acid secretion. When released from enterochromaffin-like cells, histamine engages H2 receptors, initiating the cyclic AMP (cAMP) pathway. In this pathway, adenylyl cyclase converts ATP into cAMP, elevating intracellular cAMP levels. The activation of protein kinase A follows, stimulating the proton pump. This stimulation prompts the secretion of hydrogen...

Tumor Immunotherapy

Tumor Immunotherapy

Immunotherapy is a treatment that boosts or manipulates the immune system to fight diseases, including cancer. For instance, by stimulating an immune response through vaccinations against viruses that cause cancers, like hepatitis B virus and human papillomavirus, these diseases can be prevented. Nonetheless, some cancer cells can avoid the immune system due to their rapid mutation and division. The immune response to many cancers involves three phases: elimination, equilibrium, and escape.

Tumor Progression

Tumor Progression

Tumor progression is a phenomenon where the pre-formed tumor acquires successive mutations to become clinically more aggressive and malignant. In the 1950s, Foulds first described the stepwise progression of cancer cells through successive stages.
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...

The Tumor Microenvironment

The Tumor Microenvironment

Every normal cell or tissue is embedded in a complex local environment called stroma, consisting of different cell types, a basal membrane, and blood vessels. As normal cells mutate and develop into cancer cells, their local environment also changes to allow cancer progression. The tumor microenvironment (TME) consists of a complex cellular matrix of stromal cells and the developing tumor. The cross-talk between cancer cells and surrounding stromal cells is critical to disrupt normal tissue...