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A nine-banded armadillo walking on dry grass.
Leprosy Bacterium Rejuvenates Armadillos’ Livers
Mycobacterium leprae appeared to reprogram the animals’ livers to a state partially resembling early development, resulting in healthy organ growth.
Leprosy Bacterium Rejuvenates Armadillos’ Livers
Leprosy Bacterium Rejuvenates Armadillos’ Livers

Mycobacterium leprae appeared to reprogram the animals’ livers to a state partially resembling early development, resulting in healthy organ growth.

Mycobacterium leprae appeared to reprogram the animals’ livers to a state partially resembling early development, resulting in healthy organ growth.

regeneration
Micrograph of kidney tissue from a mouse
Vesicles from Young Mice Alleviate Signs of Aging in Older Animals
Catherine Offord | Oct 19, 2022 | 4 min read
Mice that received the stem cell–derived treatment were less frail compared with controls, a study reports.
Thomas Lozito poses with Donald, one of his mourning geckos.
Thomas Lozito Is Figuring Out How Lizards Rebuild
Connor Lynch | Feb 14, 2022 | 4 min read
The University of Southern California bioengineer studies how lizards regrow their tails, with the goal of one day inducing regeneration in humans.
Stem Cells in Human Teeth Follow the Rules of Their Environment
Roni Dengler, PhD | 2 min read
How stem cells in human teeth respond to different environmental conditions offers clues for regenerative medicine.
A frog partially submerged in water looking straight ahead
Drug Cocktail Triggers Regeneration of Amputated Frog Legs
Dan Robitzski | Jan 26, 2022 | 3 min read
A new chemical treatment allowed African clawed frogs, which normally don’t regenerate limbs, to regrow functional hind legs following amputation.
A semi-translucent hydra, complete with a body column, head, and multiple tentacles, is pictured in front of a gray background.
How Hydras Regenerate Decapitated Heads
Dan Robitzski | Dec 14, 2021 | 5 min read
Hydra vulgaris constantly replenish the cells in their heads and grow new ones to reproduce asexually. But gene expression analyses reveal that regenerating a head after an injury is a very different process.
Technique Talk: Supporting Organoid Growth in 3D Cell Culture
The Scientist Creative Services Team in collaboration with Bio-Techne | 1 min read
In this workshop, you will learn how to optimally culture organoids and support their growth after genetic manipulation.
Lizard on glass tank
Engineered Stem Cells Grant Geckos “Perfectly” Regenerated Tails
Chloe Tenn | Nov 5, 2021 | 4 min read
Geckos injected with neural stem cells modified to block cartilage growth developed the skeletal and nervous components normally lacking from regrown tails.
a spiny mouse sits on a piece of wood holding a small morsel to its mouth
Spiny Mice Appear to Regenerate Damaged Kidneys
Dan Robitzski | Nov 3, 2021 | 5 min read
The mice, already known to regenerate skin, seem to avoid the tissue scarring that leads to organ failure in other animals.
Improving Cardiac Cell Therapy Persistence
The Scientist Speaks Ep. 13 - The Long Haul: Improving Cardiac Cell Therapy Persistence
Niki Spahich, PhD | 1 min read
Researchers remuscularize the heart after cardiac infarction with stem cell-derived cardiomyocytes and ready-made microvessels.
An underwater photo of the solitary tunicate Polycarpa mytiligera growing on a coral in the Red Sea
When Severed, This Solitary Tunicate Regrows as Three New Animals
Amanda Heidt | May 13, 2021 | 4 min read
While regeneration has long been the domain of colonial tunicates, a solitary species of sea squirt was able to regenerate into multiple, fully functional individuals within a month of being cut up.
Infographic: Anatomical Construction by Cell Collectives
Michael Levin | Sep 1, 2020 | 3 min read
Understanding this complex and still largely enigmatic process will pave the way for researchers to control the development of new morphologies.
Technique Talk: 2D Stem Cell Culture
The Scientist’s Creative Services Team | 1 min read
In this workshop, you will learn tips and tricks for culturing stem cells in 2D.
How Groups of Cells Cooperate to Build Organs and Organisms
Michael Levin | Sep 1, 2020 | 10+ min read
Understanding biology’s software—the rules that enable great plasticity in how cell collectives generate reliable anatomies—is key to advancing tissue engineering and regenerative medicine.
Colon Cancer Uses a Regenerative Playbook to Metastasize
Shawna Williams | Apr 1, 2020 | 5 min read
A study finds similarities between cells that heal wounds and those that lead deadly cancerous invasions.
The MSC: Regeneration Orchestrator
The Scientist Staff | 7 min read
Scientists uncover the promise of mesenchymal stem cells (MSCs), also known as medicinal signaling cells, to modulate the immune system and regenerate tissue.
Image of the Day: Regenerating Worms
Amy Schleunes | Feb 3, 2020 | 1 min read
Planarian flatworms grow to double their normal size when scientists inhibit a gene that suppresses growth.
Opinion: Interdisciplinary Approach Needed to Crack Morphogenesis
Joshua Finkelstein, Kelly McLaughlin, and Michael Levin | Dec 1, 2019 | 4 min read
Physicists, geneticists, computer scientists, and biologists are working together to gain a full appreciation of the intricacies of organismal growth and form.
the knees of a woman sitting on grass outside
Adult Humans Can Regenerate Cartilage: Study
Shawna Williams | Oct 10, 2019 | 2 min read
Collagen inside ankles has more turnover than that in hips, thanks to the action of microRNAs.
Image of the Day: Double Header
Carolyn Wilke | Mar 8, 2019 | 1 min read
Scientists have manipulated the electrical signals that help guide flatworms in regenerating their body parts to encourage a flatworm to grow two heads.
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