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Platelet-rich plasma activates tendon-derived stem cells to promote regeneration of Achilles tendon rupture in rats. 2017

Kang Xu, and Mohanad Kh Al-Ani, and Yanjun Sun, and Wei Xu, and Lianhong Pan, and Yang Song, and ZhiLing Xu, and Xin Pan, and Li Yang
National Innovation and Attracting Talents '111' Base, Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, People's Republic of China.

This study investigates whether platelet-rich plasma (PRP) is an activator of tendon-derived stem cells (TDSCs) to promote regeneration of Achilles tendon post-rupture in rats. In the in vitro study, PRGF (activated PRP) significantly enhanced cell DNA synthesis, improved viability and promoted proliferation, while facilitating cell migration and the recruitment of TDSCs. In addition, TDSCs were mixed with collagen and PRP to form collagen-TDSC constructs (CTC) and PRP-collagen-TDSC constructs (PCTCs). After 3 weeks of culture in vitro, we found that most of the encapsulated TDSCs in the CTCs and PCTCs were still alive, while cells in the PCTCs showed a more aligned arrangement compared to the CTCs. In addition, the micro-structure of PCTC showed more obvious fibre-like tissues and formed a cyclic microvascular structure. The tenocyte-related genes types I and III collagen, Tenascin-C and Scleraxis of TDSCs in the PCTCs and CTCs were upregulated with time, and PCTCs showed more significance than CTCs (p < 0.05). After in vivo transplantation, the CTCs and PCTCs showed stimulatory effects on Achilles tendon healing. Moreover, the PCTCs improved the macroscopic appearance, histological morphology and biomechanical strength of ruptured Achilles tendon better than CTC. These results indicate that PRP can activate TDSCs to improve the quality of Achilles tendon rupture healing in the early stages. Copyright © 2015 John Wiley & Sons, Ltd.

UI MeSH Term Description Entries
D012038 Regeneration The physiological renewal, repair, or replacement of tissue. Endogenous Regeneration,Regeneration, Endogenous,Regenerations
D002465 Cell Movement The movement of cells from one location to another. Distinguish from CYTOKINESIS which is the process of dividing the CYTOPLASM of a cell. Cell Migration,Locomotion, Cell,Migration, Cell,Motility, Cell,Movement, Cell,Cell Locomotion,Cell Motility,Cell Movements,Movements, Cell
D002470 Cell Survival The span of viability of a cell characterized by the capacity to perform certain functions such as metabolism, growth, reproduction, some form of responsiveness, and adaptability. Cell Viability,Cell Viabilities,Survival, Cell,Viabilities, Cell,Viability, Cell
D003094 Collagen A polypeptide substance comprising about one third of the total protein in mammalian organisms. It is the main constituent of SKIN; CONNECTIVE TISSUE; and the organic substance of bones (BONE AND BONES) and teeth (TOOTH). Avicon,Avitene,Collagen Felt,Collagen Fleece,Collagenfleece,Collastat,Dermodress,Microfibril Collagen Hemostat,Pangen,Zyderm,alpha-Collagen,Collagen Hemostat, Microfibril,alpha Collagen
D005786 Gene Expression Regulation Any of the processes by which nuclear, cytoplasmic, or intercellular factors influence the differential control (induction or repression) of gene action at the level of transcription or translation. Gene Action Regulation,Regulation of Gene Expression,Expression Regulation, Gene,Regulation, Gene Action,Regulation, Gene Expression
D000125 Achilles Tendon Tendon that connects the muscles in the back of the calf to the HEEL BONE. Calcaneal Tendon,Tendo Calcaneus,Calcaneal Tendons,Tendon, Achilles,Tendon, Calcaneal,Tendons, Calcaneal
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D012421 Rupture Forcible or traumatic tear or break of an organ or other soft part of the body. Ruptures
D013234 Stem Cells Relatively undifferentiated cells that retain the ability to divide and proliferate throughout postnatal life to provide progenitor cells that can differentiate into specialized cells. Colony-Forming Units,Mother Cells,Progenitor Cells,Colony-Forming Unit,Cell, Mother,Cell, Progenitor,Cell, Stem,Cells, Mother,Cells, Progenitor,Cells, Stem,Colony Forming Unit,Colony Forming Units,Mother Cell,Progenitor Cell,Stem Cell
D013708 Tendon Injuries Injuries to the fibrous cords of connective tissue which attach muscles to bones or other structures. Injuries, Tendon,Injury, Tendon,Tendon Injury

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