Navigation Links
Bone from blood: Circulating cells form bone outside the normal skeleton, Penn study finds
Date:7/23/2009

PHILADELPHIA The accepted dogma has been that bone-forming cells, derived from the body's connective tissue, are the only cells able to form the skeleton. However, new research shows that specialized cells in the blood share a common origin with white blood cells derived from the bone marrow and that these bloodstream cells are capable of forming bone at sites distant from the original skeleton. This work, published online this month in the journal Stem Cells, represents the first example of how circulating cells may contribute to abnormal bone formation.

The discovery that circulating blood cells can form bone outside the normal skeleton was made while studying a rare genetic disease of misplaced bone growth, fibrodysplasia ossificans progressiva, or FOP.

"Identifying circulating cells with bone-forming potential in humans has important implications for FOP, as well as more common disorders where bone is formed outside the skeleton, such as in end-stage aortic valve disease, following head and spinal cord injury, and after hip and knee replacements," says senior author Robert J. Pignolo, MD, PhD, Assistant Professor of Medicine at the University of Pennsylvania School of Medicine. "This type of aberrant bone growth also occurs after severe trauma, such as blast injuries suffered by Iraqi war veterans, and its study may help us understand how bone forms after the development of the skeleton has ceased, with possible applications in bone diseases where only scarce or poor quality bone forms." Pignolo is also the Director of the Ralston-Penn Clinic for Osteoporosis & Related Bone Disorders

The researchers analyzed blood samples from patients with FOP and unaffected individuals, isolating cells that could form bone when transplanted subcutaneously into animals. The isolated cells were characterized using surface and other markers, which identified them as being derived from bone marrow. The researchers also examined tissue from FOP patients that had formed new bone, and found that these cells had migrated into the early sites of the lesion.

"This study provides an explanation for how bone-forming cells could seed sites of injury and inflammation that subsequently develop ossifications outside the skeleton," says Frederick S. Kaplan, MD, Isaac & Rose Nassau Professor of Orthopedic Molecular Medicine and Director of the Center for FOP & Related Disorders at Penn. "Dr. Pignolo and researchers in his lab demonstrated that these circulating cells are able to home to damaged tissue."


'/>"/>

Contact: Karen Kreeger
karen.kreeger@uphs.upenn.edu
215-349-5658
University of Pennsylvania School of Medicine
Source:Eurekalert  

Related medicine news :

1. Battling Bacteria in the Blood: U-M Researchers Tackle Deadly Infections
2. Circulating fats kill transplanted pancreas cells, study shows
3. FDA Clears Cellsearch(TM) Circulating Tumor Cell Test for Monitoring Metastatic Prostate Cancer Patients
4. High circulating D-dimers are associated with presence of ascites
5. Circulating Tumor Cells Reveal Insights Into Lung Cancers
6. Circulating tumor cells can reveal genetic signature of dangerous lung cancers
7. Levels of Circulating Tumor Cells Could Predict Prostate Cancer Outcome
8. Tumors use enzyme to recruit regulatory T-cells and suppress immune response
9. Brain cells work differently than previously thought
10. Embryonic Stem Cells Repair Human Heart
11. Embryonic Human Stem Cells May Help Repair Heart Muscle, Lab Study Shows
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Bone from blood: Circulating cells form bone outside the normal skeleton, Penn study finds
(Date:12/7/2016)... ... December 07, 2016 , ... Kenall Manufacturing, a leader in sealed healthcare ... The MPCNGX is a multi-function, sealed, LED luminaire that meets the needs of everyone ... when it’s needed. , A 2’ x 4’ model features four modes: ...
(Date:12/7/2016)... ... December 07, 2016 , ... OC87 Recovery Diaries ... schizophrenic mother in a unique, personal perspective through animation. , That woman ... addictive disorders at her private psychotherapy practice. Sheri’s mother, Pearl, lived with schizophrenia. ...
(Date:12/7/2016)... ... 2016 , ... Castle Dermatology Institute is now offering liquid facelifts with ... appearance to the face. Dr. Peyman Ghasri and Dr. Pedram Ghasri, San Fernando ... to rejuvenate and renew the facial appearance. , Sculptra is a highly effective ...
(Date:12/7/2016)... ... 07, 2016 , ... When it came time to blow out his candles on his 14th ... Pediatric Heart Transplant team at Joe DiMaggio Children’s Hospital surprised his family with ... 30th heart transplant recipient. , “He was playing at home, when we got the ...
(Date:12/7/2016)... TX (PRWEB) , ... December 07, 2016 , ... ... offering insurance and financial planning services to families and business owners in the ... funds on behalf of the Dallas Fallen Officer Foundation. , Established in 2009 ...
Breaking Medicine News(10 mins):
(Date:12/6/2016)...  Licenders is bringing their 100% all-natural lice removal service to ... at 203 13 th Street was specifically chosen to make ... "Our goal is to ease parents, stress and bring their ... children right back to class without skipping a beat. The best ... for the whole family," Licenders President Adie Horowitz states. ...
(Date:12/6/2016)... 6, 2016  "Blood Tests replace Surgical Biopsies. ... The Diagnostic, Monitoring and Screening Test opportunities ... is occurring using in vitro blood testing to ... impressive backing, has announced a single blood test ... faster than the market. New technology that definitively ...
(Date:12/6/2016)... 2016 Diabetes & Obesity Drug Development Pipeline ... disease cluster is currently dominated by therapeutics indicated for ... mellitus (T2DM), and the majority of the pipeline, in ... attributable to these indications. While products indicated for obesity ... are a large number of these products in the ...
Breaking Medicine Technology: