Trisomy 21

Disease

3 papers5 findings

  • Humans1
  • Animals1

Effects

1

B cells

downin humans1

1 study
  1. Trisomy 21 decreases B cells in humans.

    “T21 causes progressive shifts in B cell subsets together with accelerated age-dependent B cell loss linked to hyperactive interferon and JAK/STAT signaling.”

    Humans

    Progressive deterioration of adaptive immune repertoires in Down syndrome linked to interferon hyperactivity and lymphoid tissue disorganization

    bioRxiv : the preprint server for biology4 Aug 2026Preprint

Associations

4

Senescence-associated secretory phenotype (SASP)

upin human cells1

1 study
  1. Trisomy 21 is associated with senescence-associated secretory phenotype (SASP) in human cells.

    “These results were confirmed by real-time quantitative PCR showing an increase of the SEN marker CDKN2B and SASP markers IL-6 and CXCL8.”

    Cellslung

    Elevated Senescence Markers in Developing Trisomy 21 Human Lungs

    American journal of respiratory cell and molecular biology28 Feb 2025

More on Senescence-associated secretory phenotype (SASP)

Oxidative stress and ROS signalling

upin human cells1

1 study
  1. Trisomy 21 is associated with oxidative stress and ROS signalling in human cells.

    “Only T21 fibroblasts displayed a significant increase in reactive oxygen species levels, as indicated by MitoSOX and CellROX.”

    Cellslung

    Elevated Senescence Markers in Developing Trisomy 21 Human Lungs

    American journal of respiratory cell and molecular biology28 Feb 2025

More on Oxidative stress and ROS signalling

DNA damage response

upin human cells1

1 study
  1. Trisomy 21 is associated with DNA damage response in human cells.

    “Telomerase-associated foci staining showed DNA damage primarily within T21 and T18 lungs.”

    Cellslung

    Elevated Senescence Markers in Developing Trisomy 21 Human Lungs

    American journal of respiratory cell and molecular biology28 Feb 2025

More on DNA damage response

Cellular senescence

upin human cells1

1 study
  1. Trisomy 21 is associated with cellular senescence in human cells.

    “Isolated fibroblasts demonstrated a strong association between T21 and several SEN markers.”

    Cellsin prenatal lung tissue and isolated fibroblastslung

    Elevated Senescence Markers in Developing Trisomy 21 Human Lungs

    American journal of respiratory cell and molecular biology28 Feb 2025

More on Cellular senescence

Trial sponsors

Funding

3 grants since 2023

National Heart, Lung, and Blood InstituteUS$1.2mNational Institute on AgingUS$2.6mNational Institute of Child Health and Human DevelopmentUS$2.2m

Latest

Nov 2025: 0Dec 2025: 2Jan 2026: 0Feb 2026: 0Mar 2026: 0Apr 2026: 0May 2026: 0Jun 2026: 1Jul 2026: 0Aug 2026: 1Sep 2026: 1Oct 2026: 05 in 12 months