Metformina y la dinámica de los retrotransposones en el envejecimiento cronológico de la levadura

Jimena Meneses-Plascencia1, Ericka Moreno-Méndez2, Diana Ascencio3

  • 1Unidad de Genómica Avanzada, Cinvestav, 36824 Irapuato, Mexico.

PubMed
Resumen

La metformina, un fármaco común para la diabetes, extiende la vida útil al influir en la regulación de la cromatina y la expresión de retrotransposones en levaduras. Este estudio revela un nuevo vínculo entre estos procesos celulares y la metformina.

Videos de Conceptos Relacionados

Mitochondria01:37

Mitochondria

Mitochondria are eukaryotic cellular organelles that are known to produce energy through a process called oxidative phosphorylation. Besides their primary function, mitochondria are involved in various cellular processes, including cell growth, differentiation, signaling, metabolism, and senescence. Age-related changes cause a decline in mitochondrial quality and integrity due to increased mitochondrial mutations and oxidative damage. Thus, aging can severely impact mitochondrial functions,...
20.8K
Replicative Cell Senescence02:15

Replicative Cell Senescence

Replicative cell senescence is a property of cells that allows them to divide a finite number of times throughout the organism's lifespan while preventing excessive proliferation. Replicative senescence is associated with the gradual loss of the telomere — short, repetitive DNA sequences found at the end of the chromosomes. Telomeres are bound by a group of proteins to form a protective cap on the ends of chromosomes. Embryonic stem cells express telomerase — an enzyme that adds...
4.5K
Replication in Eukaryotes01:29

Replication in Eukaryotes

In eukaryotic cells, DNA replication is highly conserved and tightly regulated. Multiple linear chromosomes must be duplicated with high fidelity before cell division, so there are many proteins that fulfill specialized roles in the replication process. Replication occurs in three phases: initiation, elongation, and termination, and ends with two complete sets of chromosomes in the nucleus.
Many Proteins Orchestrate Replication at the Origin
Eukaryotic replication follows many of the same...
17.9K