Abstract
In our previous study, 17β-estradiol was proved to protect rat annulus fibrosus cells against apoptosis induced by interleukin-1β (IL-1β). However, whether 17β-estradiol has protective effect on rat nucleus pulposus cells remains unclear. The purpose of this study was to further explore the effects of 17β-estradiol on rat nucleus pulposus cells based on IL-1β-induced apoptosis. TUNEL assay and Annexin V/PI double staining were used to detect apoptosis and revealed that IL-1β induced notable apoptosis, which was reversed by 17β-estradiol. Meanwhile, cell viability and binding ability were decreased by IL-1β, but activated caspase-3 was increased. However, all of the detected effects of IL-1β were eliminated by 17β-estradiol. Furthermore, real-time quantitative RT-PCR was used to further find that IL-1β downregulated expression level of type II collagen, aggrecan, tissue inhibitor of matrix metalloproteinase (TIMP)-1, while upregulated matrix metalloproteinase (MMP)-3, MMP-13 and Bcl-2, which was further confirmed by western blot. Finally, 17β-estradiol was proved to abolish the above negative effects of IL-1β. In summary, this work presented that IL-1β maybe induced apoptosis of rat nucleus pulposus cells, which was resisted by 17β-estradiol by down-regulating MMP-3 and MMP-13 via a mitochondrial pathway. This research provides a novel insight into the anti-apoptotic effect of 17β-estradiol on IL-1β-induced cytotoxicity, and may potentially lead to a better understanding of the clinical effects of 17β-estradiol, especially in terms of intervertebral disc degeneration.
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Abbreviations
- IVD:
-
Intervertebral disc
- IVDD:
-
Intervertebral disc degeneration
- ECM:
-
Extracellular matrix
- NP:
-
Nucleus pulposus
- NPCs:
-
Nucleus pulposus cells
- IL-1β:
-
Interleukin-1β
- E2,:
-
17β-estradiol
- ICI:
-
ICI182780
- TUNEL:
-
Terminal-deoxynucleoitidyl transferase mediated nick end labeling
- RT-qPCR:
-
Reverse transcription and real-time quantitative polymerase chain reaction
- MMP:
-
Matrix metalloproteinase
- TIMP:
-
Tissue inhibitor of matrix metalloproteinase
- FBS:
-
Fetal bovine serum
References
Park JB, Kim KW, Han CW, Chang H (2001) Expression of Fas receptor on disc cells in herniated lumbar disc tissue. Spine 26:142–146
Antoniou J, Steffen T, Nelson F, Winterbottom N, Hollander AP, Poole RA, Aebi M, Alini M (1996) The human lumbar intervertebral disc: evidence for changes in the biosynthesis and denaturation of the extracellular matrix with growth, maturation, ageing, and degeneration. J Clin Invest 98:996–1003
Buckwalter JA (1995) Aging and degeneration of the human intervertebral disc. Spine 20:1307–1314
Zhou GQ, Yang F, Leung VYL (2008) Molecular and cellular biology of the intervertebral disc and the use of animal models. Current Orthop 22:267–273
Le Maitre CL, Freemont AJ, Hoyland JA (2007) Accelerated cellular senescence in degenerate intervertebral discs: a possible role in the pathogenesis of intervertebral disc degeneration. Arthritis Res Ther 9:R45
Alini M, Roughley PJ, Antoniou J, Stoll T, Aebi M (2002) A biological approach to treating disc degeneration: not for today, but may be for tomorrow. Eur Spine J 11:S215–S220
Kroeber M, Unglaub F, Guehring T, Nerlich A, Hadi T, Lotz J, Carstens C (2005) Effects of controlled dynamic disc distraction on degenerated intervertebral discs: an in vivo study on the rabbit lumbar spine model. Spine 30:181–187
Zhao CQ, Liu D, Li H, Jiang LS, Dai LY (2007) Interleukin-1β enhances the effect of serum deprivation on rat annular cell apoptosis. Apoptosis 12:2155–2161
Yang D, Wang D, Shimer A, Shen FH, Li X, Yang X (2014) Glutathione protects human nucleus pulposus cells from cell apoptosis and inhibition of matrix synthesis. Connect Tissue Res 55(2):132–139. doi:10.3109/03008207.2013.876421
Zhang CC, Cui GP, Hu JG, Xiao YZ, Zhou XS, Shao C, Lin Q, Zhou JS (2014) Effects of adenoviral vector expressing hIGF-1 on apoptosis in nucleus pulposus cells in vitro. Int J Mol Med 33(2):401–405. doi:10.3892/ijmm.2013.1586
Park JB, Park IC, Park SJ, Jin HO, Lee JK, Riew KD (2006) Anti-apoptotic effects of caspase inhibitors on rat intervertebral disc cells. J Bone Joint Surg Am 88:771–779
Portt L, Norman G, Clapp C, Greenwood M (1813) Greenwood MT (2011) Anti-apoptosis and cell survival: a review. Biochim Biophys Acta 1:238–259. doi:10.1016/j.bbamcr.2010.10.010
Duprez L, Wirawan E, Vanden Berghe T, Vandenabeele P (2009) Major cell death pathways at a glance. Microbes Infect 11:1050–1062
Gupta S, Kass GE, Szegezdi E, Joseph B (2009) The mitochondrial death pathway: a promising therapeutic target in Diseases. J Cell Mol Med 13:1004–1033
Brunelle JK, Letai A (2009) Control of mitochondrial apoptosis by the Bcl-2 family. J Cell Sci 122:437–441
Galluzzi L, Morselli E, Kepp O, Vitale I, Rigoni A, Vacchelli E, Michaud M, Zischka H, Castedo M, Kroemer G (2010) Mitochondrial gateways to cancer. Mol Aspects Med 31:1–20
Mavrogonatou E, Angelopoulou MT, Kletsas D (2014) The catabolic effect of TNFα on bovine nucleus pulposus intervertebral disc cells and the restraining role of glucosamine sulfate in the TNFα-mediated up-regulation of MMP-3. J Orthop Res 32(12):1701–1707. doi:10.1002/jor.22725
Wang X, Wang H, Yang H, Li J, Cai Q, Shapiro IM, Risbud MV (2014) Tumor necrosis factor-α- and interleukin-1β-dependent matrix metalloproteinase-3 expression in nucleus pulposus cells requires cooperative signaling via syndecan 4 and mitogen-activated protein kinase-NF-κB axis: implications in inflammatory disc disease. Am J Pathol 184(9):2560–2572. doi:10.1016/j.ajpath.2014.06.006
Liu H, Pan H, Yang H, Wang J, Zhang K, Li X, Wang H, Ding W, Li B, Zheng Z (2014) LIM mineralization protein-1 suppresses TNF-α induced intervertebral disc degeneration by maintaining nucleus pulposus extracellular matrix production and inhibiting matrix metalloproteinases expression. J Orthop Res. doi: 10.1002/jor.22732. (in press)
Gu SX, Li X, Hamilton JL, Chee A, Kc R, Chen D, An HS, Kim JS, Oh CD, Ma YZ, van Wijnen AJ, Im HJ (2014) MicroRNA-146a reduces IL-1 dependent inflammatory responses in the intervertebral disc. Gene. doi: 10.1016/j.gene.2014.10.024. (in press)
Knittel T, Mehde M, Kobold D, Saile B, Dinter C, Ramadori G (1999) Expression patterns of matrix metalloproteinases and their inhibitors in parenchymal and non-parenchymal cells of rat liver: regulation by TNF-alpha and TGF-beta1. J Hepatol 30(1):48–60
Liu C, Wan X, Ye T, Fang F, Chen X, Chen Y, Dong Y (2014) Matrix Metalloproteinase 2 Contributes to Pancreatic Beta Cell Injury Induced by Oxidative Stress. PLoS One 9:e110227. doi:10.1371/journal.pone.0110227
Wang L, Wu Y, Tan Y, Fei X, Deng Y, Cao H, Chen B, Wang H, Magdalou J, Chen L (2014) Cytotoxic effects of the quinolone levofloxacin on rabbit meniscus cells. J Appl Toxicol 34(8):870–877. doi:10.1002/jat.2903
Yurube T, Takada T, Suzuki T, Kakutani K, Maeno K, Doita M, Kurosaka M, Nishida K (2012) Rat tail static compression model mimics extracellular matrix metabolic imbalances of matrix metalloproteinases, aggrecanases, and tissue inhibitors of metalloproteinases in intervertebral disc degeneration. Arthritis Res Ther 14:R51
Wang H, Ding W, Yang D, Gu T, Yang S, Bai Z (2014) Different concentrations of 17β-estradiol modulates apoptosis induced by interleukin-1β in rat annulus fibrosus cells. Mol Med Rep 10(5):2745–2751. doi:10.3892/mmr.2014.2514
Yang SD, Ma L, Gu TX, Ding WY, Zhang F, Shen Y, Zhang YZ, Yang DL, Zhang D, Sun YP, Song YL (2014) 17β-Estradiol protects against apoptosis induced by levofloxacin in rat nucleus pulposus cells by upregulating integrin α2β1. Apoptosis 19(5):789–800. doi:10.1007/s10495-014-0965-4
Yang SD, Bai ZL, Zhang F, Ma L, Yang DL, Ding WY (2014) Levofloxacin increases the effect of serum deprivation on anoikis of rat nucleus pulposus cells via Bax/Bcl-2/caspase-3 pathway. Toxicol Mech Methods 24(9):688–696. doi:10.3109/15376516.2014.963772
D’Amelio M, Tino E, Cecconi F (2008) The apoptosome: emerging insights and new potential targets for drug design. Pharm Res 25:740–751
Zhong X, Rescorla FJ (2012) Cell surface adhesion molecules and adhesion-initiated signaling: understanding of anoikis resistance mechanisms and therapeutic opportunities. Cell Signal 24:393–401
Rosner W, Hankinson SE, Sluss PM, Vesper HW, Wierman ME (2013) Challenges to the measurement of estradiol: an endocrine society position statement. J Clin Endocrinol Metab 98(4):1376–1387. doi:10.1210/jc.2012-3780
Lee JS, Ettinger B, Stanczyk FZ, Vittinghoff E, Hanes V, Cauley JA, Chandler W, Settlage J, Beattie MS, Folkerd E, Dowsett M, Grady D, Cummings SR (2006) Comparison of methods to measure low serum estradiol levels in postmenopausal women. J Clin Endocrinol Metab 91:3791–3797
Rothman MS, Carlson NE, Xu M, Wang C, Swerdloff R, Lee P, Goh VH, Ridgway EC, Wierman ME (2011) Reexamination of testosterone, dihydrotestosterone, estradiol and estrone levels across the menstrual cycle and in postmenopausal women measured by liquid chromatography-tandem mass spectrometry. Steroids 76:177–182
Acknowledgments
This study was supported by Natural Science Fund of Hebei Province (No. H2014206075).
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The authors declare that they have no conflict of interest.
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Yang, SD., Yang, DL., Sun, YP. et al. 17β-Estradiol protects against apoptosis induced by interleukin-1β in rat nucleus pulposus cells by down-regulating MMP-3 and MMP-13. Apoptosis 20, 348–357 (2015). https://doi.org/10.1007/s10495-015-1086-4
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DOI: https://doi.org/10.1007/s10495-015-1086-4