Video Experimental Relacionado

Updated: Sep 9, 2025

Laser Microirradiation to Study In Vivo Cellular Responses to Simple and Complex DNA Damage

Laser Microirradiation to Study In Vivo Cellular Responses to Simple and Complex DNA Damage

Published on: January 31, 2018

PARP (poli ADP-ribosa polimerasa) Familia en la salud y la enfermedad

Pengyuan Lei^1,2, Wenfeng Li¹, Jinhua Luo^1,3

¹Beijing Key Laboratory for Radiobiology Department of Radiation Biology Beijing Institute of Radiation Medicine Beijing China.

|September 4, 2025

Resumen

Las enzimas poli (ADP-ribosa) polimerasa (PARP) regulan la reparación y el metabolismo del ADN. Esta revisión explora el PARP

Área de la Ciencia:

Bioquímica y Biología Molecular
Genética y genómica
Farmacología y Terapia

Sus antecedentes:

La familia de la poli (ADP-ribosa) polimerasa (PARP) comprende 17 enzimas dependientes del NAD+.
Las enzimas PARP catalizan la ribosilación de ADP, crucial para la reparación del ADN, el metabolismo y las respuestas inmunes.
La actividad desregulada de PARP está relacionada con varias enfermedades humanas.

Objetivo del estudio:

Aclarar las características estructurales y las diversas funciones biológicas de los miembros de la familia PARP.
Explorar las implicaciones de la desregulación de PARP en condiciones fisiológicas y patológicas.
Proporcionar información sobre las estrategias terapéuticas actuales y futuras dirigidas a la PARP.

Principales métodos:

Revisión exhaustiva de la literatura sobre la estructura y la función de la familia PARP.
Análisis de las funciones de PARP en la reparación del ADN, la estabilidad del genoma y el metabolismo celular.
Examen de la participación de PARP en enfermedades no oncológicas y potencial terapéutico.

Principales resultados:

Clasificación detallada de los miembros de la familia PARP basada en las características estructurales y funcionales.
Demostración de las funciones críticas de las enzimas PARP en el mantenimiento de la estabilidad del genoma y la regulación de los procesos celulares.
Identificación de aplicaciones terapéuticas emergentes para los inhibidores de la PARP más allá de la oncología.

Conclusiones:

Las enzimas PARP son reguladores vitales de los procesos biológicos fundamentales.
La desregulación de PARP contribuye a la patogénesis de la enfermedad, destacando las oportunidades terapéuticas.
La investigación adicional en terapias dirigidas a PARP es prometedora para el tratamiento de diversas afecciones.

Palabras clave:

Reparación de daños en el ADN Familia de las PARP Terapia dirigida a la PARP regulación del metabolismo mecanismos patológicos funciones fisiológicas

Más Videos Relacionados

Assessment of Global DNA Double-Strand End Resection using BrdU-DNA Labeling coupled with Cell Cycle Discrimination Imaging

Assessment of Global DNA Double-Strand End Resection using BrdU-DNA Labeling coupled with Cell Cycle Discrimination Imaging

Published on: April 28, 2021

Author Spotlight: Developing Parmodulins to Target Protease-Activated Receptors for Inflammation Control

Author Spotlight: Developing Parmodulins to Target Protease-Activated Receptors for Inflammation Control

Published on: May 24, 2024

Videos de Conceptos Relacionados

Negative Regulator Molecules

Negative Regulator Molecules

Positive regulators allow a cell to advance through cell cycle checkpoints. Negative regulators have an equally important role as they terminate a cell’s progression through the cell cycle—or pause it—until the cell meets specific criteria.

DNA Damage can Stall the Cell Cycle

DNA Damage can Stall the Cell Cycle

In response to DNA damage, cells can pause the cell cycle to assess and repair the breaks. However, the cell must check the DNA at certain critical stages during the cell cycle. If the cell cycle pauses before DNA replication, the cells will contain twice the amount of DNA. On the other hand, if cells arrest after DNA replication but before mitosis, they will contain four times the normal amount of DNA. With a host of specialized proteins at their disposal,cells must use the right protein at...

Abnormal Proliferation

Abnormal Proliferation

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...

Nucleotide Excision Repair

Nucleotide Excision Repair

DNA Distortion and Damage
Cells are regularly exposed to mutagens—factors in the environment that can damage DNA and generate mutations. UV radiation is one of the most common mutagens and is estimated to introduce a significant number of changes in DNA. These include bends or kinks in the structure, which can block DNA replication or transcription. If these errors are not fixed, the damage can cause mutations, which in turn can result in cancer or disease depending on which sequences are...

Interactions Between Signaling Pathways

Interactions Between Signaling Pathways

Signaling cascades usually lack linearity. Multiple pathways interact and regulate one another, allowing cells to integrate and respond to diverse environmental stimuli.
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...

Long-patch Base Excision Repair

Long-patch Base Excision Repair

Since the discovery of the two BER pathways, there has been a debate about how a cell chooses one pathway over the other and the factors determining this selection. Numerous in vitro experiments have pointed out multiple determinants for the sub-pathway selection. These are: