Abstract
Summary
We investigated whether the age of the bones endogenously exerts control over the bone resorption ability of the osteoclasts, and found that osteoclasts preferentially develop and resorb bone on aged bone. These findings indicate that the bone matrix itself plays a role in targeted remodeling of aged bones.
Introduction
Osteoclasts resorb aging bone in order to repair damage and maintain the quality of bone. The mechanism behind the targeting of aged bone for remodeling is not clear. We investigated whether bones endogenously possess the ability to control osteoclastic resorption.
Methods
To biochemically distinguish aged and young bones; we measured the ratio between the age-isomerized βCTX fragment and the non-isomerized αCTX fragment. By measurement of TRACP activity, CTX release, number of TRACP positive cells and pit area/pit number, we evaluated osteoclastogenesis as well as osteoclast resorption on aged and young bones.
Results
We found that the αCTX / βCTX ratio is 3:1 in young compared to aged bones, and we found that both α and βCTX are released by osteoclasts during resorption. Osteoclastogenesis was augmented on aged compared to young bones, and the difference was enhanced under low serum conditions. We found that mature osteoclasts resorb more on aged than on young bone, despite unchanged adhesion and morphology.
Conclusions
These data indicate that the age of the bone plays an important role in controlling osteoclast-mediated resorption, with significantly higher levels of osteoclast differentiation and resorption on aged bones when compared to young bones.
Similar content being viewed by others
References
Frost HM (1969) Tetracycline-based histological analysis of bone remodeling. Calcif Tissue Res 3:211–237
Parfitt AM (2002) Targeted and nontargeted bone remodeling: relationship to basic multicellular unit origination and progression. Bone 30:5–7
Han ZH, Palnitkar S, Rao DS et al (1997) Effects of ethnicity and age or menopause on the remodeling and turnover of iliac bone: implications for mechanisms of bone loss. J Bone Miner Res 12:498–508
Burr DB, Martin RB (1993) Calculating the probability that microcracks initiate resorption spaces. J Biomech 26:613–616
Noble B (2003) Bone microdamage and cell apoptosis. Eur Cell Mater 6:46–55
Burr DB (2002) Targeted and nontargeted remodeling. Bone 30:2–4
Heaney RP (2003) Is the paradigm shifting? Bone 33:457–465
Chan GK, Duque G (2002) Age-related bone loss: old bone, new facts. Gerontology 48:62–71
Fledelius C, Johnsen AH, Cloos PA et al (1997) Characterization of urinary degradation products derived from type I collagen. Identification of a beta-isomerized Asp-Gly sequence within the C-terminal telopeptide (alpha1) region. J Biol Chem 272:9755–9763
Cloos PA, Lyubimova N, Solberg H et al (2004) An immunoassay for measuring fragments of newly synthesized collagen type I produced during metastatic invasion of bone. Clin Lab 50:279–289
Cloos PA, Fledelius C (2000) Collagen fragments in urine derived from bone resorption are highly racemized and isomerized: a biological clock of protein aging with clinical potential. Biochem J 345(Pt 3):473–480
Currey JD, Brear K, Zioupos P (1996) The effects of ageing and changes in mineral content in degrading the toughness of human femora. J Biomech 29:257–260
Dickson IR, Bagga MK (1985) Changes with age in the non-collagenous proteins of human bone. Connect. Tissue Res 14:77–85
Triffitt JT (1976) Plasma proteins present in human cortical bone: enrichment of the alpha2HS-glycoprotein. Calcif Tissue Res 22:27–33
Fedarko NS, Vetter UK, Weinstein S et al (1992) Age-related changes in hyaluronan, proteoglycan, collagen, and osteonectin synthesis by human bone cells. J Cell Physiol 151:215–227
Perkins SL, Gibbons R, Kling S et al (1994) Age-related bone loss in mice is associated with an increased osteoclast progenitor pool. Bone 15:65–72
Noble BS, Stevens H, Loveridge N et al (1997) Identification of apoptotic changes in osteocytes in normal and pathological human bone. Bone 20:273–282
Bonewald LF (2002) Osteocytes: a proposed multifunctional bone cell. J Musculoskelet Neuronal Interact 2:239–241
Noble BS, Peet N, Stevens HY et al (2003) Mechanical loading: biphasic osteocyte survival and targeting of osteoclasts for bone destruction in rat cortical bone. Am J Physiol Cell Physiol 284:C934–C943
Cao J, Venton L, Sakata T et al (2003) Expression of RANKL and OPG correlates with age-related bone loss in male C57BL/6 mice. J Bone Miner Res 18:270–277
Ueland T, Brixen K, Mosekilde L et al (2003) Age-related changes in cortical bone content of insulin-like growth factor binding protein (IGFBP)-3, IGFBP-5, osteoprotegerin, and calcium in postmenopausal osteoporosis: a cross-sectional study. J Clin Endocrinol Metab 88:1014–1018; 2003
Karsdal MA, Hjorth P, Henriksen K et al (2003) TGF-beta controls human osteoclastogenesis through the p38 MAP kinase and regulation of RANK expression. J Biol Chem 278:44975–44987
Henriksen K, Gram J, Schaller S et al (2004) Characterization of osteoclasts from patients harboring a G215R mutation in ClC-7 causing autosomal dominant osteopetrosis type II. Am J Pathol 164:1537–1545
Schaller S, Henriksen K, Sveigaard C et al (2004) The chloride channel inhibitor n53736 prevents bone resorption in ovariectomized rats without changing bone formation. J Bone Miner Res 19:1144–1153
Henriksen K, Gram J, Hoegh-Andersen P et al (2005) Osteoclasts from patients with Autosomal Dominant Osteopetrosis type I (ADOI) caused by a T253I mutation in LRP5 are normal in vitro, but have decreased resorption capacity in vivo. Am J Pathol 167:1341–1348
Sondergaard BC, Henriksen K, Wulf H et al (2006) Relative contribution of matrix metalloprotease and cysteine protease activities to cytokine-stimulated articular cartilage degradation. Osteoarthritis Cartilage 14:738–748
Henriksen K, Sorensen MG, Nielsen RH et al (2006) Degradation of the organic phase of bone by osteoclasts - a secondary role for lysosomal acidification. J Bone Miner Res 21:58–66
Malone JD, Teitelbaum SL, Griffin GL et al. (1982) Recruitment of osteoclast precursors by purified bone matrix constituents. J Cell Biol 92:227–230
Martini MC, Osdoby P, Caplan AI (1982) Adhesion of osteoclasts and monocytes to developing bone. J Exp Zool 224:345–354
Krukowski M, Kahn AJ (1982) Inductive specificity of mineralized bone matrix in ectopic osteoclast differentiation. Calcif Tissue Int 34:474–479
Hentunen TA, Cunningham NS, Vuolteenaho O et al (1994) Osteoclast recruiting activity in bone matrix. Bone Miner 25:183–198
Groessner-Schreiber B, Krukowski M, Hertweck D et al (1991) Osteoclast formation is related to bone matrix age. Calcif Tissue Int 48:335-340
Groessner-Schreiber B, Krukowski M, Lyons C et al (1992) Osteoclast recruitment in response to human bone matrix is age related. Mech Ageing Dev 62:143–154
Triffitt JT, Gebauer U, Ashton BA et al (1976) Origin of plasma alpha2HS-glycoprotein and its accumulation in bone. Nature 262:226–227
Melton LJ III, Khosla S, Atkinson EJ et al (1997) Relationship of bone turnover to bone density and fractures. J Bone Miner Res 12:1083–1091
Garnero P, Sornay-Rendu E Chapuy MC et al (1996) Increased bone turnover in late postmenopausal women is a major determinant of osteoporosis. J Bone Miner Res 11:337–349
Verborgt O, Gibson GJ, Schaffler MB (2000) Loss of osteocyte integrity in association with microdamage and bone remodeling after fatigue in vivo. J Bone Miner Res 15:60–67
Mullender MG, van der Meer DD, Huiskes R et al (1996) Osteocyte density changes in aging and osteoporosis. Bone 18:109–113
Schaffler MB, Choi K, Milgrom C (1995) Aging and matrix microdamage accumulation in human compact bone. Bone 17:521–525
Bronckers AL, Goei W, Luo G et al (1996) DNA fragmentation during bone formation in neonatal rodents assessed by transferase-mediated end labeling. J Bone Miner Res 11:1281–1291
Mori S, Burr DB (1993) Increased intracortical remodeling following fatigue damage. Bone 14:103–109
Gazit D, Zilberman Y, Turgeman G et al (1999) Recombinant TGF-beta1 stimulates bone marrow osteoprogenitor cell activity and bone matrix synthesis in osteopenic, old male mice. J Cell Biochem 73:379–389
Hughes DE, Dai A, Tiffee JC et al (1996) Estrogen promotes apoptosis of murine osteoclasts mediated by TGF-beta. Nat Med 2:1132–1136
Ikeda T, Nagai Y, Yamaguchi A et al (1995) Age-related reduction in bone matrix protein mRNA expression in rat bone tissues: application of histomorphometry to in situ hybridization. Bone 16:17–23
Odetti P, Rossi S, Monacelli F et al (2005) Advanced glycation end products and bone loss during aging. Ann NY Acad Sci 1043:710–717; 2005
Cloos PA, Christgau S (2004) Post-translational modifications of proteins: implications for aging, antigen recognition, and autoimmunity. Biogerontology 5:139–158
Ishijima M, Rittling SR, Yamashita T et al (2001) Enhancement of osteoclastic bone resorption and suppression of osteoblastic bone formation in response to reduced mechanical stress do not occur in the absence of osteopontin. J Exp Med 193:399–404
Miyata T, Notoya K, Yoshida K et al (1997) Advanced glycation end products enhance osteoclast-induced bone resorption in cultured mouse unfractionated bone cells and in rats implanted subcutaneously with devitalized bone particles. J Am Soc Nephrol 8:260–270
Author information
Authors and Affiliations
Corresponding author
Additional information
Kim Henriksen and Diana J. Leeming contributed equally.
Financial disclosure: Morten A. Karsdal, Per Qvist and Claus Christiansen own stock options in Nordic Bioscience A/S
Rights and permissions
About this article
Cite this article
Henriksen, K., Leeming, D.J., Byrjalsen, I. et al. Osteoclasts prefer aged bone. Osteoporos Int 18, 751–759 (2007). https://doi.org/10.1007/s00198-006-0298-4
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00198-006-0298-4