Abstract
Purpose
A prospective study was undertaken to investigate basic fibroblast growth factor (bFGF) expression in hypertrophic ligamentum flavum (LF) from patients with lumbar spinal canal stenosis (LSCS) and to determine whether there was a correlation of bFGF expression with LF thickness.
Methods
Twenty patients with lumbar spinal canal stenosis were enrolled in this study. bFGF mRNA and protein expressions in LF were analyzed using quantitative reverse transcriptase-polymerase chain reaction (RT-PCR), immunohistochemistry, and enzyme-linked immunosorbent assay (ELISA), respectively. The thickness of LF was measured by axial T1-weighted magnetic resonance imaging.
Results
Expression of bFGF was substantially higher in the hypertrophic LF group than in the control group (P < 0.001) as quantified by quantitative real-time PCR. In immunohistochemical study, bFGF was positively stained on the fibroblasts within hypertrophic LF compared to nonpathologic LF of controls. Subsequent ELISA analysis revealed that bFGF concentration in the hypertrophic LF group was remarkably higher than that in the control group (P = 0.003). The thickness of LF in the hypertrophic LF was significantly greater than that in the control group (P < 0.001). LSCS patients with greater severity of LF hypertrophy had significantly higher bFGF levels in the LF tissues (P < 0.001). Furthermore, the bFGF concentration exhibited a positive correlation with the LF thickness (r = 0.974, P < 0.001).
Conclusions
These findings suggest that the increased expression of bFGF is associated with the hypertrophy of ligamentum flavum in patients with LSCS.
Similar content being viewed by others
References
Szpalski M, Gunzburg R (2003) Lumbar spinal stenosis in the elderly: an overview. Eur Spine J 12:S170–S175
Hansson T, Suzuki N, Hebelka H, Gaulitz A (2009) The narrowing of the lumbar spinal canal during loaded MRI: the effects of the disc and ligamentum flavum. Eur Spine J 18:679–686
Saint-Louis LA (2001) Lumbar spinal stenosis assessment with computed tomography, magnetic resonance imaging, and myelography. Clin Orthop Relat Res 384:122–136
Alzheimer C, Werner S (2002) Fibroblast growth factors and neuroprotection. Adv Exp Med Biol 513:335–351
Thomas KA (1987) Fibroblast growth factors. FASEB J 1:434–440
Honsawek S, Yuktanandana P, Tanavalee A, Saetan N, Anomasiri W, Parkpian V (2012) Correlation between plasma and synovial fluid basic fibroblast growth factor with radiographic severity in primary knee osteoarthritis. Int Orthop 36:981–985
Barrientos S, Stojadinovic O, Golinko MS, Brem H, Tomic-Canic M (2008) Growth factors and cytokines in wound healing. Wound Repair Regen 16:585–601
Przybylski M (2009) A review of the current research on the role of bFGF and VEGF in angiogenesis. J Wound Care 18:516–519
Yayama T, Baba H, Furusawa N, Kobayashi S, Uchida K, Kokubo Y, Noriki S, Imamura Y, Fukuda M (2005) Pathogenesis of calcium crystal deposition in the ligamentum flavum correlates with lumbar spinal canal stenosis. Clin Exp Rheumatol 23:637–643
Livak KJ, Schmittgen TD (2001) Analysis of relative gene expression data using real-time quantitative PCR and the 2(-Delta Delta C(T)) method. Methods 25:402–408
Fukuyama S, Nakamura T, Ikeda T, Takagi K (1995) The effect of mechanical stress on hypertrophy of the lumbar ligamentum flavum. J Spinal Disord 8:126–130
Park JB, Chang H, Lee JK (2001) Quantitative analysis of transforming growth factor-beta 1 in ligamentum flavum of lumbar spinal stenosis and disc herniation. Spine (Phila Pa 1976) 26:E492–E495
Giles LG, Kaveri MJ (1990) Some osseous and soft tissue causes of human intervertebral canal (foramen) stenosis. J Rheumatol 17:1474–1481
Binder DK, Schmidt MH, Weinstein PR (2002) Lumbar spinal stenosis. Semin Neurol 22:157–166
Schrader P, Grob D, Rahn BA, Cordey J, Dvorak J (1999) Histology of the ligamentum flavum in patients with degenerative lumbar spinal stenosis. Eur Spine J 8:323–328
Yahia LH, Garzon S, Strykowski H, Rivard CH (1990) Ultrastructure of the human interspinous ligament and ligamentum flavum. A preliminary study. Spine 15:262–268
Yoshida M, Shima K, Tangiguti Y, Tamaki T, Tanaka T (1992) Hypertrophied ligamentum flavum in lumbar spinal canal stenosis. Pathogenesis and morphologic and immunohistochemical observation. Spine 17:1353–1360
Löhr M, Hampl JA, Lee JY, Ernestus RI, Deckert M, Stenzel W (2011) Hypertrophy of the lumbar ligamentum flavum is associated with inflammation-related TGF-β expression. Acta Neurochir (Wien) 153:134–141
Zhang Y, Chen J, Zhong ZM, Yang D, Zhu Q (2010) Is platelet-derived growth factor-BB expression proportional to fibrosis in the hypertrophied lumber ligamentum flavum? Spine (Phila Pa 1976) 35:E1479–E1486
Zhong ZM, Zha DS, **ao WD, Wu SH, Wu Q, Zhang Y, Liu FQ, Chen JT (2011) Hypertrophy of ligamentum flavum in lumbar spine stenosis associated with the increased expression of connective tissue growth factor. J Orthop Res 29:1592–1597
Morita H, Shinzato T, David G, Mizutani A, Habuchi H, Fujita Y, Ito M, Asai J, Maeda K, Kimata K (1994) Basic fibroblast growth factor-binding domain of heparan sulfate in the human glomerulosclerosis and renal tubulointerstitial fibrosis. Lab Invest 71:528–535
Inoue Y, King TE Jr, Barker E, Daniloff E, Newman LS (2002) Basic fibroblast growth factor and its receptors in idiopathic pulmonary fibrosis and lymphangioleiomyomatosis. Am J Respir Crit Care Med 166:765–773
Peng X, Wang B, Wang T, Zhao Q (2005) Expression of basic fibroblast growth factor in rat liver fibrosis and hepatic stellate cells. J Huazhong Univ Sci Technolog Med Sci 25:166–169
Poonpukdee J, Chalermpanpipat C, Payungporn S, Honsawek S (2012) Basic fibroblast growth factor expression in hypertrophic ligamentum flavum of lumbar spinal stenosis. Asian Biomed 6:99–104
Acknowledgments
This investigation was supported by Ratchadapiseksompotch Fund, Faculty of Medicine, Chulalongkorn University, Thailand Research Fund, and National Research Council of Thailand. We are grateful to Mr. Preecha Ruangvejvorachai for kindly technical assistance and Chulalongkorn Medical Research Center (ChulaMRC) for generously providing facilities.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Honsawek, S., Poonpukdee, J., Chalermpanpipat, C. et al. Hypertrophy of the ligamentum flavum in lumbar spinal canal stenosis is associated with increased bFGF expression. International Orthopaedics (SICOT) 37, 1387–1392 (2013). https://doi.org/10.1007/s00264-013-1864-y
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00264-013-1864-y