Video Experimental Relacionado

Updated: May 5, 2026

Generation of Organ-conditioned Media and Applications for Studying Organ-specific Influences on Breast Cancer Metastatic Behavior

Generation of Organ-conditioned Media and Applications for Studying Organ-specific Influences on Breast Cancer Metastatic Behavior

Published on: June 13, 2016

IKKalpha en la intersección de la inflamación y la metástasis

Nesrine I Affara¹, Lisa M Coussens

¹Department of Pathology, University of California, San Francisco, San Francisco, CA 94143, USA.

|April 10, 2007

Resumen

Las células inmunes que se infiltran en el tumor y expresan RANKL promueven la metástasis del cáncer de próstata. Estas células activan IKKalpha en las células tumorales, reprimiendo el maspin, un supresor de metástasis clave.

Área de la Ciencia:

Oncología Oncología.
Inmunología Inmunología.
Biología celular Biología celular.

Sus antecedentes:

El desarrollo de tumores sólidos implica interacciones complejas entre las células cancerosas y su microambiente.
La progresión y la metástasis del cáncer de próstata son desafíos clínicos críticos.

Objetivo del estudio:

Para investigar el papel de las células inmunes que se infiltran en el tumor en la metástasis del cáncer de próstata.
Para dilucidar los mecanismos moleculares por los cuales las células inmunes influyen en el destino de las células cancerosas.

Principales métodos:

El estudio examinó las interacciones entre las células inmunes y las células tumorales prostáticas epiteliales.
El análisis se centró en la expresión de RANKL, la activación de IKKalpha y la represión de maspin.

Principales resultados:

Se identificaron células inmunes que se infiltran en el tumor y que expresan el ligando RANK (RANKL).
RANKL indujo la activación y la localización nuclear del inhibidor de la kappa quinasa alfa (IKKalpha) en las células tumorales de la próstata.
Esta activación condujo a la represión de maspin, un conocido supresor de la metástasis.

Conclusiones:

Las células inmunes dentro del microambiente tumoral pueden conducir a la metástasis del cáncer de próstata.
La vía RANKL-IKKalpha-maspin representa un mecanismo clave que vincula la inflamación y la progresión del cáncer.

Más Videos Relacionados

A Guide to Production, Crystallization, and Structure Determination of Human IKK1/α

A Guide to Production, Crystallization, and Structure Determination of Human IKK1/α

Published on: November 2, 2018

Modeling Brain Metastasis Via Tail-Vein Injection of Inflammatory Breast Cancer Cells

Modeling Brain Metastasis Via Tail-Vein Injection of Inflammatory Breast Cancer Cells

Published on: February 4, 2021

Videos de Conceptos Relacionados

Metastasis

Metastasis

Metastasis is the spread of cancer cells from the original site to distant locations in the body. Cancer cells can spread via blood vessels (hematogenous) as well as lymph vessels in the body.
Epithelial-to-Mesenchymal Transition
The epithelial-to-mesenchymal transition or EMT is a developmental process commonly observed in wound healing, embryogenesis, and cancer metastasis. EMT is induced by transforming growth factor-beta (TGF-β) or receptor tyrosine kinase (RTK) ligands, which further...

Cancer Cell Migration through Invadopodia

Cancer Cell Migration through Invadopodia

Invadosome is a broad category of cell surface structures with proteolytic activity that degrades the extracellular matrix (ECM). Invadosomes are present in normal cell types, including macrophages, endothelial cells, and neurons, as well as tumor cells. Although the macrophage podosomes and tumor cell invadopodia are classified as invadosomes, they have different structures, molecular pathways, and functions. Podosomes are short structures that last for a few minutes. However,...

The JAK-STAT Signaling Pathway

The JAK-STAT Signaling Pathway

Several cytokine receptors have tightly bound Janus kinase or JAK proteins attached at their cytosolic tail. Small signaling molecules such as cytokines, growth hormones, or prolactins bind to the cytokine receptors and initiate their dimerization. The dimerization brings the cytosolic JAKs together that trans-phosphorylate and activates each other. The activated JAKs now phosphorylate cytosolic tails of the cytokine receptors, which serve as binding sites for adaptor proteins such as SH2...

Activation of Integrins

Activation of Integrins

Integrins bind ligands and transmit information from outside the cell to inside or vice-versa through an "outside-in signaling" or "inside-out signaling."
In "outside-in signaling," external factors in the extracellular space bind to exposed ligand binding sites on integrins. This causes the inactive protein to undergo a conformational change to become active. Integrins are often clustered on the cell membrane. Repetitive and regularly spaced ligand binding...

Intracellular Signaling Affects Focal Adhesions

Intracellular Signaling Affects Focal Adhesions

Integrins act both as extracellular input receivers and as intracellular processing activators. As their name suggests, integrins are entirely integrated into the membrane structure. Their hydrophobic membrane-spanning regions interact with the phospholipid bilayer's hydrophobic region. These membrane receptors provide extracellular attachment sites for effectors like hormones and growth factors. They activate intracellular response cascades when their effectors are bound and active.
Some...

Acute Inflammation I: Cellular Phase

Acute Inflammation I: Cellular Phase

The cellular phase of acute inflammation is a tightly orchestrated sequence of events that recruits leukocytes, primarily neutrophils, to sites of tissue injury or infection. Following the initial vascular changes, this phase ensures effective immune cell migration, activation, and function at the affected site to eliminate pathogens and initiate tissue repair.Leukocyte Recruitment CascadeLeukocyte recruitment happens in four steps: margination, adhesion, transmigration, and chemotaxis. Reduced...