Tag

Regenerative Medicine

All articles tagged with #regenerative medicine

Molecular Switch Could Unlock Lungs' Self-Healing, Mayo Study Finds
science7 days ago

Molecular Switch Could Unlock Lungs' Self-Healing, Mayo Study Finds

Mayo Clinic researchers uncovered a molecular circuit that decides whether alveolar type 2 (AT2) lung cells repair tissue or defend against infection; a clamp-like regulator, C/EBPα, must be released after injury, with PRC2 and DLK1 timing the switch. The finding explains why infections slow lung healing and suggests regenerative therapies that modulate C/EBPα or reprogram AT2 cells, potentially enabling cell replacement. Published in Nature Communications (2025), the work also points to early-detection biomarkers and ties to Mayo's Precure and Genesis initiatives.

Blocking an Aging Enzyme Sparks Cartilage Regrowth Without Stem Cells
science20 days ago

Blocking an Aging Enzyme Sparks Cartilage Regrowth Without Stem Cells

Scientists inhibited the aging-associated enzyme 15-PGDH in aged mice with cartilage damage, triggering regeneration of hyaline cartilage without stem cells and showing early repair signals in human cartilage samples; if these findings translate to humans, treatments for osteoarthritis could shift toward direct cartilage restoration rather than surgery, though safety and clinical trials are still needed.

DMTF1: A Molecular Switch to Rejuvenate Aging Brain Cells
science22 days ago

DMTF1: A Molecular Switch to Rejuvenate Aging Brain Cells

Researchers have identified the transcription factor DMTF1 as a key regulator that preserves neural stem cell activity in aging brains. In aging models with telomere damage, DMTF1 levels drop and neural stem cell regeneration declines; reactivating DMTF1 restores regenerative capacity and reveals its role in activating helper genes that open chromatin for growth-related genes. This suggests potential therapies to slow cognitive aging by boosting neural stem cell function, though most work so far is in vitro, with the long-term aim of developing small molecules to safely enhance DMTF1 without increasing brain tumor risk.

New Research Finds Regeneration in Human Heart Cells After Attack
science1 month ago

New Research Finds Regeneration in Human Heart Cells After Attack

Researchers analyzing living human heart tissue found that heart muscle cells can divide after a heart attack, indicating potential regeneration in humans. By examining tissue from a donor heart and bypass patients and using RNA sequencing, they identified conditions that promote cardiomyocyte division. While promising, the findings do not yet prevent scar formation or heart damage, but could guide future regenerative therapies, and were published in Circulation Research.

Dancing-molecule nanotherapy crosses the blood-brain barrier to repair stroke damage
science1 month ago

Dancing-molecule nanotherapy crosses the blood-brain barrier to repair stroke damage

Northwestern researchers have developed an injectable regenerative nanomaterial built from dynamic “dancing molecules” that can cross the blood-brain barrier after reperfusion in a mouse model of ischemic stroke. Delivered intravenously immediately after clot removal, the therapy reduced brain damage and inflammation without observed toxicity, suggesting it could complement clot-busting treatments. The approach relies on smaller peptide assemblies crossing the BBB before larger nanofibers form in brain tissue, and may have implications for traumatic brain injury and neurodegenerative diseases. Next steps include longer-term functional studies and exploring additional regenerative signals.

Lab-Grown Embryo Models Pave the Way for Blood Cell Production and Donation Solutions
science4 months ago

Lab-Grown Embryo Models Pave the Way for Blood Cell Production and Donation Solutions

Researchers at the University of Cambridge have developed embryo-like structures called hematoids from donated human stem cells that can produce red and white blood cells in the lab, potentially supplementing blood donations and advancing treatments for blood disorders. These structures mimic early human blood development and are more self-sustaining than previous methods, marking a significant step toward regenerative therapies.