Image source: ar130405 from Pixabay

Skeletal reconstruction

New stem cells discovery could pave the way to generate new bone

A population of stem cells with the ability to generate new bone has been newly discovered by a group of researchers at the University of Connecticut (UConn) School of Dental Medicine.

In the journal Stem Cells, lead investigator Dr. Ivo Kalajzic, professor of reconstructive sciences, postdoctoral fellows Dr. Sierra Root and Dr. Natalie Wee, and collaborators at Harvard, Maine Medical Research Center, and the University of Auckland present a new population of cells that reside along the vascular channels that stretch across the bone and connect the inner and outer parts of the bone. “This is a new discovery of perivascular cells residing within the bone itself that can generate new bone forming cells,” said Kalajzic. “These cells likely regulate bone formation or participate in bone mass maintenance and repair.”

Recommended article

Photo

Regeneration vs. osteoarthritis

Regrow cartilage in joints? Science says you can

Contrary to popular belief, cartilage in human joints can repair itself through a process similar to that used by creatures such as salamanders and zebrafish to regenerate limbs, researchers at Duke Health found. This process could be harnessed as a treatment for osteoarthritis. Publishing in the journal Science Advances, the researchers identified a mechanism for cartilage repair that appears to…

Stem cells for bone have long been thought to be present within bone marrow and the outer surface of bone, serving as reserve cells that constantly generate new bone or participate in bone repair. Recent studies have described the existence of a network of vascular channels that helped distribute blood cells out of the bone marrow, but no research has proved the existence of cells within these channels that have the ability to form new bones.

In this study, Kalajzic and his team are the first to report the existence of these progenitor cells within cortical bone that can generate new bone-forming cells – osteoblasts – that can be used to help remodel a bone. To reach this conclusion, the researchers observed the stem cells within an ex vivo bone transplantation model. These cells migrated out of the transplant, and began to reconstruct the bone marrow cavity and form new bone.

While this study shows there is a population of cells that can help aid bone formation, more research needs to be done to determine the cells’ potential to regulate bone formation and resorption. 


Source: University of Connecticut

09.03.2020

Read all latest stories

Related articles

Photo

DMD & rhabdomyosarcoma

Duchenne muscular dystrophy: Muscle stem cells can drive cancer

People with Duchenne muscular dystrophy (DMD) can develop an otherwise-rare muscle cancer, called rhabdomyosarcoma, due to the muscle cells’ continuous work to rebuild the damaged tissue. However,…

Photo

Regenerated Bone

Living bone replicates original anatomical structure

A new technique developed by Gordana Vunjak-Novakovic, the Mikati Foundation Professor of Biomedical Engineering at Columbia Engineering and professor of medical sciences (in Medicine) at Columbia…

Photo

Promising approach for eye diseases

Functional human retinas created in a dish

Scientists have generated accurate replications of human retinas in culture that can be used to pinpoint the specific types of cells affected by genetic eye diseases. The culmination of a six-year…

Related products

Eppendorf – Mastercycler nexus X2

Research Use Only (RUO)

Eppendorf – Mastercycler nexus X2

Eppendorf AG
Sarstedt – Low DNA Binding Micro Tubes

Research Use Only (RUO)

Sarstedt – Low DNA Binding Micro Tubes

SARSTEDT AG & CO. KG
Shimadzu – CLAM-2030

Research Use Only (RUO)

Shimadzu – CLAM-2030

Shimadzu Europa GmbH