GFP chimeric models exhibited a biphasic pattern of mesenchymal cell invasion in tendon healing

Yoshiteru Kajikawa, Toru Morihara, Nobuyoshi Watanabe, Hirotaka Sakamoto, Ken Ichi Matsuda, Masashi Kobayashi, Yasushi Oshima, Atsuhiko Yoshida, Mitsuhiro Kawata, Toshikazu Kubo

Research output: Contribution to journalArticle

64 Citations (Scopus)

Abstract

The healing of an injured musculoskeletal system requires an influx of mesenchymal cells that can differentiate into osteoblasts, fibroblasts, chondroblasts, and skeletal myoblasts. However, whether these mesenchymal cells arise from the circulation (bone marrow) or the injured tissues themselves has been controversial. To reveal the spatiotemporal characteristics of the reparative mesenchymal cells, we investigated the healing process after patellar tendon injury using two types of green fluorescent protein (GFP) chimeric rats; one expressing GFP in the circulating cells, and the other expressing it in the patellar tendon. We analyzed the behavior of GFP-positive cells after experimental tendon injury in both chimeric rats to clarify the origin of reparative cells. At 24 h after the injury, the wound contained circulation-derived cells but not tendon-derived cells. Tendon-derived cells first appeared in the wounded area at 3 days after the injury, and had significantly increased in number with time and had maintained a high level of proliferative activity until 7 days after the injury, whereas the circulation-derived cells had decreased in number and had been replaced by the tendon-derived cells. These findings suggest that circulation-derived and tendon-derived cells contribute to the healing of tendons in different periods as part of a biphasic process.

Original languageEnglish
Pages (from-to)684-691
Number of pages8
JournalJournal of Cellular Physiology
Volume210
Issue number3
DOIs
Publication statusPublished - Mar 2007
Externally publishedYes

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Tendons
Green Fluorescent Proteins
Tendon Injuries
Rats
Patellar Ligament
Musculoskeletal system
Osteoblasts
Wounds and Injuries
Fibroblasts
Skeletal Myoblasts
Musculoskeletal System
Bone
Cells
Tissue
Chondrocytes
Bone Marrow

ASJC Scopus subject areas

  • Clinical Biochemistry
  • Cell Biology
  • Physiology

Cite this

Kajikawa, Y., Morihara, T., Watanabe, N., Sakamoto, H., Matsuda, K. I., Kobayashi, M., ... Kubo, T. (2007). GFP chimeric models exhibited a biphasic pattern of mesenchymal cell invasion in tendon healing. Journal of Cellular Physiology, 210(3), 684-691. https://doi.org/10.1002/jcp.20876

GFP chimeric models exhibited a biphasic pattern of mesenchymal cell invasion in tendon healing. / Kajikawa, Yoshiteru; Morihara, Toru; Watanabe, Nobuyoshi; Sakamoto, Hirotaka; Matsuda, Ken Ichi; Kobayashi, Masashi; Oshima, Yasushi; Yoshida, Atsuhiko; Kawata, Mitsuhiro; Kubo, Toshikazu.

In: Journal of Cellular Physiology, Vol. 210, No. 3, 03.2007, p. 684-691.

Research output: Contribution to journalArticle

Kajikawa, Y, Morihara, T, Watanabe, N, Sakamoto, H, Matsuda, KI, Kobayashi, M, Oshima, Y, Yoshida, A, Kawata, M & Kubo, T 2007, 'GFP chimeric models exhibited a biphasic pattern of mesenchymal cell invasion in tendon healing', Journal of Cellular Physiology, vol. 210, no. 3, pp. 684-691. https://doi.org/10.1002/jcp.20876
Kajikawa, Yoshiteru ; Morihara, Toru ; Watanabe, Nobuyoshi ; Sakamoto, Hirotaka ; Matsuda, Ken Ichi ; Kobayashi, Masashi ; Oshima, Yasushi ; Yoshida, Atsuhiko ; Kawata, Mitsuhiro ; Kubo, Toshikazu. / GFP chimeric models exhibited a biphasic pattern of mesenchymal cell invasion in tendon healing. In: Journal of Cellular Physiology. 2007 ; Vol. 210, No. 3. pp. 684-691.
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