Aging Promotes Reactivation of the Barr Body at Distal Chromosome Regions

1. Academic Background: The Mysterious Link between X Chromosome Inactivation and Aging In mammals, females possess two X chromosomes while males have only one. To maintain gene dosage balance between the sexes, females undergo a process called X chromosome inactivation (XCI) early in development, in which one of the two X chromosomes is randomly s...

Retrotransposon-Derived Capsid Genes PNMA1 and PNMA4 Maintain Reproductive Capacity

Mechanistic Study on How Retrotransposon-derived Capsid Genes PNMA1 and PNMA4 Maintain Reproductive Capacity — A New Research Review from Nature Aging I. Research Background and Scientific Significance Nearly half of the DNA in the human and mammalian genome is made up of retrotransposons, sequences that originally existed as “parasitic molecules” ...

Coupling of Cell Shape, Matrix and Tissue Dynamics Ensures Embryonic Patterning Robustness

Research Background During the early stages of mammalian embryonic development, embryonic cells gradually differentiate into various cell types through complex regulatory mechanisms, forming tissues with specific functions. This process is known as tissue patterning, which involves the determination of cell fate, coordination of cellular dynamics, ...

Empowering High Throughput Screening of 3D Models: Automated Dispensing of Cervical and Endometrial Cancer Cells

Cervical cancer and endometrial cancer are significant challenges in women’s healthcare, with high mortality rates and limited treatment options making related research particularly important. Traditional two-dimensional (2D) cell screening models can provide information on the effects of drugs on single cells but fail to capture multicellular inte...

Hypoxic Preconditioned ADSC Exosomes Enhance Vaginal Wound Healing via Accelerated Keratinocyte Proliferation and Migration through Akt/HIF-1α Axis Activation

Vaginal wound healing is a critical issue in gynecological surgery, especially following vaginal delivery or pelvic reconstructive surgery. Infection and poor healing of vaginal wounds can lead to severe complications such as chronic pain, infection, and dysfunction. Therefore, accelerating vaginal wound healing has been a focal point of clinical r...