Abstract
Purpose
The aim of this study was to investigate the relationship between the disruption of ECM and cellular events including autophagic cell death, apoptosis and cell differentiation into myofibroblasts in the degenerative rotator cuff tendon.
Methods
Tendon samples were collected from 30 patients undergoing surgery for rotator cuff tears. Apoptosis, autophagic cell death and myofibroblasts of the tendon cells in the ruptured rotator cuff tendon were detected by immunohistochemical staining. The distribution of autophagic cell death, apoptosis, myofibroblasts and cell density were assessed and correlated with the disruption of ECM which was graded 0–3 points using a customized scoring system.
Results
The highest percentage of autophagic cell death (51.9 ± 1.5%) was observed in grade 2 matrix, significantly different from that in matrix graded 0, 1 and 3 (P2Vs0 < 0.001; P2Vs1 < 0.001; P2Vs3 = 0.008, respectively). The highest apoptosis (34.8 ± 1.6%) was found in grade 3 matrix (P3Vs0 < 0.001; P3Vs1 < 0.001; P3Vs2 = 0.044, respectively). The percentage of myofibroblasts significantly increased as the ECM degenerated, with the highest percentage in grade 3 matrix (19.8 ± 1.3%) (P3Vs0 < 0.001; P3Vs11 < 0.001; P3Vs2 = 0.044, respectively). The total cell density varied with the grade of ECM, with maximum cell density in the matrix that was graded 1 (674 ± 27) and minimum cell density in matrix 3 area (395 ± 17) (P1Vs3 < 0.001).
Conclusion
This study indicates that autophagic cell death, apoptosis and myofibroblast cell differentiation occur in ruptured rotator cuff tissue. These cellular events are closely related to the extent of damage to the ECM structure.
Similar content being viewed by others
References
Yuan J, Murrell GA, Wei AQ, Wang MX (2002) Apoptosis in rotator cuff tendonopathy. J Orthop Res 20(6):1372–1379
Tuoheti Y, Itoi E, Pradhan RL, Wakabayashi I, Takahashi S, Minagawa H et al (2005) Apoptosis in the supraspinatus tendon with stage II subacromial impingement. J Shoulder Elbow Surg 14(5):535–541
Lian O, Scott A, Engebretsen L, Bahr R, Duronio V, Khan K (2007) Excessive apoptosis in patellar tendinopathy in athletes. Am J Sports Med 35(4):605–611
Yuan J, Wang MX, Murrell GA (2003) Cell death and tendinopathy. Clin Sports Med 22(4):693–701
Shintani T, Klionsky DJ (2004) Autophagy in health and disease: a double-edged sword. Science 306(5698):990–995
Komatsu M, Waguri S, Chiba T, Murata S, Iwata J, Tanida I et al (2006) Loss of autophagy in the central nervous system causes neurodegeneration in mice. Nature 441(7095):880–884
Komatsu M, Wang QJ, Holstein GR, Friedrich VL Jr, Iwata J, Kominami E et al (2007) Essential role for autophagy protein Atg7 in the maintenance of axonal homeostasis and the prevention of axonal degeneration. Proc Natl Acad Sci USA 104(36):14489–14494
Yang Y, Fukui K, Koike T, Zheng X (2007) Induction of autophagy in neurite degeneration of mouse superior cervical ganglion neurons. Eur J Neurosci 26(10):2979–2988
Jester JV, Petroll WM, Barry PA, Cavanagh HD (1995) Expression of alpha-smooth muscle (alpha-SM) actin during corneal stromal wound healing. Invest Ophthalmol Vis Sci 36(5):809–819
Thampatty BP, Wang JH (2007) A new approach to study fibroblast migration. Cell Motil Cytoskeleton 64(1):1–5
Knaapen MW, Davies MJ, De Bie M, Haven AJ, Martinet W, Kockx MM (2001) Apoptotic versus autophagic cell death in heart failure. Cardiovasc Res 51(2):304–312
Martinet W, De Meyer GR, Andries L, Herman AG, Kockx MM (2006) Detection of autophagy in tissue by standard immunohistochemistry: possibilities and limitations. Autophagy 2(1):55–57
Mistiaen WP, Somers P, Knaapen MW, Kockx MM (2006) Autophagy as mechanism for cell death in degenerative aortic valve disease. Autophagy 2(3):221–223
Somers P, Knaapen M, Kockx M, van Cauwelaert P, Bortier H, Mistiaen W (2006) Histological evaluation of autophagic cell death in calcified aortic valve stenosis. J Heart Valve Dis 15(1):43–47 discussion 8
Ferraro E, Cecconi F (2007) Autophagic and apoptotic response to stress signals in mammalian cells. Arch Biochem Biophys 462(2):210–219
Maiuri MC, Zalckvar E, Kimchi A, Kroemer G (2007) Self-eating and self-killing: crosstalk between autophagy and apoptosis. Nat Rev Mol Cell Biol 8(9):741–752
Bursch W (2001) The autophagosomal-lysosomal compartment in programmed cell death. Cell Death Differ 8(6):569–581
Anglade P, Vyas S, Javoy-Agid F, Herrero MT, Michel PP, Marquez J et al (1997) Apoptosis and autophagy in nigral neurons of patients with Parkinson’s disease. Histol Histopathol 12(1):25–31
Bahr BA, Bendiske J (2002) The neuropathogenic contributions of lysosomal dysfunction. J Neurochem 83(3):481–489
Martinet W, Knaapen MW, Kockx MM, De Meyer GR (2010) Autophagy in cardiovascular disease. Trends Mol Med 7(1):40–47
Kaneda D, Sugie K, Yamamoto A, Matsumoto H, Kato T, Nonaka I et al (2003) A novel form of autophagic vacuolar myopathy with late-onset and multiorgan involvement. Neurology 61(1):128–131
Kalimo H, Savontaus ML, Lang H, Paljarvi L, Sonninen V, Dean PB et al (1988) X-linked myopathy with excessive autophagy: a new hereditary muscle disease. Ann Neurol 23(3):258–265
Adams CS, Horton WE Jr (1998) Chondrocyte apoptosis increases with age in the articular cartilage of adult animals. Anat Rec 250(4):418–425
Lui PP, Cheuk YC, Hung LK, Fu SC, Chan KM (2007) Increased apoptosis at the late stage of tendon healing. Wound Repair Regen 15(5):702–707
Premdas J, Tang JB, Warner JP, Murray MM, Spector M (2001) The presence of smooth muscle actin in fibroblasts in the torn human rotator cuff. J Orthop Res 19(2):221–228
Murray MM, Spector M (1999) Fibroblast distribution in the anteromedial bundle of the human anterior cruciate ligament: the presence of alpha-smooth muscle actin-positive cells. J Orthop Res 17(1):18–27
Russell JE, Manske PR (1990) Collagen synthesis during primate flexor tendon repair in vitro. J Orthop Res 8(1):13–20
Lindsay WK, Thomson HG (1960) Digital flexor tendons: an experimental study. Part I. The significance of each component of the flexor mechanismhin tendon healing. Br J Plast Surg 12:289–316
Kajikawa Y, Morihara T, Watanabe N, Sakamoto H, Matsuda K, Kobayashi M et al (2007) GFP chimeric models exhibited a biphasic pattern of mesenchymal cell invasion in tendon healing. J Cell Physiol 210(3):684–691
Gelberman RH, Amiel D, Harwood F (1992) Genetic expression for type I procollagen in the early stages of flexor tendon healing. J Hand Surg [Am] 17(3):551–558
Grasl-Kraupp B, Ruttkay-Nedecky B, Koudelka H, Bukowska K, Bursch W, Schulte-Hermann R (1995) In situ detection of fragmented DNA (TUNEL assay) fails to discriminate among apoptosis, necrosis, and autolytic cell death: a cautionary note. Hepatology 21(5):1465–1468
Chen YJ, Wang CJ, Yang KD, Kuo YR, Huang HC, Huang YT et al (2004) Extracorporeal shock waves promote healing of collagenase-induced Achilles tendinitis and increase TGF-beta1 and IGF-I expression. J Orthop Res 22(4):854–861
Chen J, Wang A, Xu J, Zheng M (2010) In chronic lateral epicondylitis, apoptosis and autophagic cell death occur in the extensor carpi radialis brevis tendon. J Shoulder Elbow Surg 19(3):355–362
Chen JM, Willers C, Xu J, Wang A, Zheng MH (2007) Autologous tenocyte therapy using porcine-derived bioscaffolds for massive rotator cuff defect in rabbits. Tissue Eng 13(7):1479–1491
Acknowledgments
This work was supported by the internal funding from Centre for Orthopaedic Research.
Author information
Authors and Affiliations
Corresponding author
Additional information
B. Wu and J. Chen contributed equally to this project.
Rights and permissions
About this article
Cite this article
Wu, B., Chen, J., Rosa, T.D. et al. Cellular response and extracellular matrix breakdown in rotator cuff tendon rupture. Arch Orthop Trauma Surg 131, 405–411 (2011). https://doi.org/10.1007/s00402-010-1157-5
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00402-010-1157-5