title: Proteomic analysis of differential protein expression of achilles tendon in a rabbit model by two-dimensional polyacrylamide gel electrophoresis at 21 days postoperation.
abstract: Postoperative early kinesitherapy has been advocated as an optimal method for treating Achilles tendon rupture. However, an insight into the rationale of how early kinesitherapy contributes to healing of Achilles tendon remains to be achieved, and research in the area of proteomic analysis of Achilles tendon has so far been lacking. Forty-two rabbits were randomized into control group, immobilization group, and early motion group, and received postoperative cast immobilization and early motion treatments. Achilles tendon samples were prepared 21 days following microsurgery, and the proteins were separated with two-dimensional polyacrylamide gel electrophoresis. Differentially expressed proteins were first recognized by PDQuest software, and then identified using peptide mass fingerprinting, tandem mass spectrometry, and database searching. A total of 463  ±  12, 511  ±  39, and 513  ±  80 protein spots were successfully detected in the two-dimensional polyacrylamide gels for the Achilles tendon samples of rabbits in the control group, immobilization group, and early motion group, respectively. There were 15, 8, and 9 unique proteins in these three groups, respectively, and some differentially expressed proteins were also identified in each group. It was indicated that some of the differentially expressed proteins were involved in various metabolism pathways and may play an important role in healing of Achilles tendon rupture. Postoperative early kinesitherapy resulted in differentially expressed proteins in ruptured Achilles tendon compared with those treated with postoperative cast immobilization. These differentially expressed proteins may contribute to healing of Achilles tendon rupture through a mechanobiological mechanism due to the application of postoperative early kinesitherapy.
authors.affiliation: Department of Microsurgery Reconstruction, Institute of Orthopedics, The First Teaching Hospital of Xinjiang Medical University, Urumqi 830054, China.
authors.forename: Jiasharete
authors.initials: J
authors.lastname: Jielile
authors.forename: Ainuer
authors.initials: A
authors.lastname: Jialili
authors.forename: Gulnur
authors.initials: G
authors.lastname: Sabirhazi
authors.forename: Nuerai
authors.initials: N
authors.lastname: Shawutali
authors.forename: Darebai
authors.initials: D
authors.lastname: Redati
authors.forename: Jiangtao
authors.initials: J
authors.lastname: Chen
authors.forename: Bin
authors.initials: B
authors.lastname: Tang
authors.forename: Jingping
authors.initials: J
authors.lastname: Bai
authors.forename: Kayrat
authors.initials: K
authors.lastname: Aldyarhan
mesh_terms: D000125:Achilles Tendon / Q000293:injuries / Q000378:metabolism* / Q000601:surgery; D000818:Animals; D001696:Biomechanical Phenomena; D002370:Casts, Surgical; D003094:Collagen / Q000235:genetics / Q000378:metabolism; D015180:Electrophoresis, Gel, Two-Dimensional / Q000379:methods*; D026241:Exercise Movement Techniques; D020869:Gene Expression Profiling; D006801:Humans; D007103:Immobilization; D008297:Male; D023421:Models, Animal; D010449:Peptide Mapping; D011182:Postoperative Care / Q000379:methods*; D040901:Proteomics / Q000379:methods*; D011817:Rabbits; D016059:Range of Motion, Articular; D012421:Rupture / Q000378:metabolism* / Q000601:surgery; D012984:Software; D053719:Tandem Mass Spectrometry; D013708:Tendon Injuries / Q000378:metabolism* / Q000601:surgery
chemical_list: D003094:Collagen