Volume 58, Issue 12 pp. 3809-3819
Cartilage Biology

The influence of sex on the chondrogenic potential of muscle-derived stem cells: Implications for cartilage regeneration and repair

Tomoyuki Matsumoto

Tomoyuki Matsumoto

Children's Hospital of Pittsburgh and University of Pittsburgh, Pittsburgh, Pennsylvania

Drs. Matasumoto and Kubo contributed equally to this work.

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Seiji Kubo

Seiji Kubo

Children's Hospital of Pittsburgh and University of Pittsburgh, Pittsburgh, Pennsylvania

Drs. Matasumoto and Kubo contributed equally to this work.

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Laura B. Meszaros

Laura B. Meszaros

Children's Hospital of Pittsburgh, Pittsburgh, Pennsylvania

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Karin A. Corsi

Karin A. Corsi

Children's Hospital of Pittsburgh, Pittsburgh, Pennsylvania

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Gregory M. Cooper

Gregory M. Cooper

Children's Hospital of Pittsburgh, Pittsburgh, Pennsylvania

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Guangheng Li

Guangheng Li

Children's Hospital of Pittsburgh, Pittsburgh, Pennsylvania

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Arvydas Usas

Arvydas Usas

Children's Hospital of Pittsburgh, Pittsburgh, Pennsylvania

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Aki Osawa

Aki Osawa

Children's Hospital of Pittsburgh and University of Pittsburgh, Pittsburgh, Pennsylvania

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Freddie H. Fu

Freddie H. Fu

University of Pittsburgh, Pittsburgh, Pennsylvania

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Johnny Huard

Corresponding Author

Johnny Huard

Children's Hospital of Pittsburgh and University of Pittsburgh, Pittsburgh, Pennsylvania

Dr. Huard has received consulting fees from Cook MyoSite, Inc. (more than $10,000).

Children's Hospital of Pittsburgh, 4100 Rangos Research Center, 3705 Fifth Avenue, Pittsburgh, PA 15213-2582Search for more papers by this author
First published: 26 November 2008
Citations: 71

Abstract

Objective

To explore possible differences in muscle-derived stem cell (MDSC) chondrogenic differentiation in vitro and articular cartilage regeneration in vivo between murine male MDSCs (M-MDSCs) and female MDSCs (F-MDSCs).

Methods

Three different populations of M- and F-MDSCs (n = 3 of each sex) obtained via preplate technique, which separates cells based on their variable adhesion characteristics, were compared for their in vitro chondrogenic potential using pellet culture. Cells were assayed with and without retroviral transduction to express bone morphogenetic protein 4 (BMP-4). The influence of both expression of stem cell marker Sca1 and in vitro expansion on the chondrogenic potential of M- and F-MDSCs was also determined. Additionally, BMP-4–transduced M- and F-MDSCs were applied to a full-thickness articular cartilage defect (n = 5 each) on the femur of a nude rat, and the quality of the repaired tissue was evaluated by macroscopic and histologic examination.

Results

With and without BMP-4 gene transduction, M-MDSCs produced significantly larger pellets with a richer extracellular matrix, compared with F-MDSCs. Sca1 purification influenced the chondrogenic potential of MDSCs, especially M-MDSCs. Long-term culture did not affect the chondrogenic potential of M-MDSCs but did influence F-MDSCs. M-MDSCs repaired articular cartilage defects more effectively than did F-MDSCs at all time points tested, as assessed both macroscopically and histologically.

Conclusion

Our findings demonstrate that sex influences the chondrogenic differentiation and articular cartilage regeneration potential of MDSCs. Compared with female MDSCs, male MDSCs display more chondrogenic differentiation and better cartilage regeneration potential.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.

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