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Bone morphogenetic protein 2

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Title: Bone morphogenetic protein 2  
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Bone morphogenetic protein 2

Bone morphogenetic protein 2
PDB rendering based on 3bmp.
Available structures
PDB Ortholog search: PDBe, RCSB
Identifiers
Symbols  ; BDA2; BMP2A
External IDs GeneCards:
RNA expression pattern
Orthologs
Species Human Mouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)
RefSeq (protein)
Location (UCSC)
PubMed search

Bone morphogenetic protein 2 or BMP-2 belongs to the TGF-β superfamily of proteins.[1]

Contents

  • Function 1
  • Interactions 2
  • Clinical use and complications 3
  • References 4
  • Further reading 5
  • External links 6

Function

BMP-2 like other bone morphogenetic proteins,[2] plays an important role in the development of bone and cartilage. It is involved in the hedgehog pathway, TGF beta signaling pathway, and in cytokine-cytokine receptor interaction. It is involved also in cardiac cell differentiation and epithelial to mesenchymal transition.

BMP-2 and BMP-7 are osteoinductive BMPs: they have been demonstrated to potently induce osteoblast differentiation in a variety of cell types.[3]

Interactions

Bone morphogenetic protein 2 has been shown to interact with BMPR1A.[4][5][6][7]

Clinical use and complications

Bone morphogenetic protein 2 is shown to stimulate the production of bone.[8] Recombinant human protein (rhBMP-2) is currently available for orthopaedic usage in the United States.[9] Implantation of BMP-2 in a collagen sponge induces new bone formation and can be used for the treatment of bony defects, delayed union, and non-union.[10]

Bone morphogenetic protein 2 has also found its way into the field of Dentistry.[11][12][13] The use of dual tapered threaded fusion cages and recombinant human bone morphogenetic protein-2 on an absorbable collagen sponge obtained and maintained intervertebral spinal fusion, improved clinical outcomes, and reduced pain after anterior lumbar interbody arthrodesis in patients with degenerative lumbar disc disease.[14] As an adjuvant to allograft bone or as a replacement for harvested autograft, bone morphogenetic proteins (BMPs) appear to improve fusion rates after spinal arthrodesis in both animal models and humans, while reducing the donor-site morbidity previously associated with such procedures.[15]

A study published in 2011 noted "reports of frequent and occasionally catastrophic complications associated with use of [BMP-2] in spinal fusion surgeries", with a level of risk far in excess of estimates reported in earlier studies.[16][17]

References

  1. ^ Sampath TK, Coughlin JE, Whetstone RM, Banach D, Corbett C, Ridge RJ, Ozkaynak E, Oppermann H, Rueger DC (August 1990). "Bovine osteogenic protein is composed of dimers of OP-1 and BMP-2A, two members of the transforming growth factor-beta superfamily". J. Biol. Chem. 265 (22): 13198–205.  
  2. ^ Chen D, Zhao M, Mundy GR (December 2004). "Bone morphogenetic proteins". Growth Factors 22 (4): 233–41.  
  3. ^ Marie PJ, Debiais F, Haÿ E (2002). "Regulation of human cranial osteoblast phenotype by FGF-2, FGFR-2 and BMP-2 signaling". Histol. Histopathol. 17 (3): 877–85.  
  4. ^ Nickel J, Dreyer MK, Kirsch T, Sebald W (2001). "The crystal structure of the BMP-2:BMPR-IA complex and the generation of BMP-2 antagonists". J Bone Joint Surg Am. 83-A Suppl 1 (Pt 1): S7–14.  
  5. ^ Kirsch T, Nickel J, Sebald W (February 2000). "Isolation of recombinant BMP receptor IA ectodomain and its 2:1 complex with BMP-2". FEBS Lett. 468 (2-3): 215–9.  
  6. ^ Kirsch T, Nickel J, Sebald W (July 2000). "BMP-2 antagonists emerge from alterations in the low-affinity binding epitope for receptor BMPR-II". EMBO J. 19 (13): 3314–24.  
  7. ^ Gilboa L, Nohe A, Geissendörfer T, Sebald W, Henis YI, Knaus P (March 2000). "Bone morphogenetic protein receptor complexes on the surface of live cells: a new oligomerization mode for serine/threonine kinase receptors". Mol. Biol. Cell 11 (3): 1023–35.  
  8. ^  
  9. ^ Khan SN, Lane JM (May 2004). "The use of recombinant human bone morphogenetic protein-2 (rhBMP-2) in orthopaedic applications". Expert Opin Biol Ther 4 (5): 741–8.  
  10. ^ Geiger M, Li RH, Friess W (November 2003). "Collagen sponges for bone regeneration with rhBMP-2". Adv. Drug Deliv. Rev. 55 (12): 1613–29.  
  11. ^ Allegrini S, Yoshimoto M, Salles MB, König B (February 2004). "Bone regeneration in rabbit sinus lifting associated with bovine BMP". J. Biomed. Mater. Res. Part B Appl. Biomater. 68 (2): 127–31.  
  12. ^ Schlegel KA, Thorwarth M, Plesinac A, Wiltfang J, Rupprecht S (December 2006). "Expression of bone matrix proteins during the osseus healing of topical conditioned implants: an experimental study". Clin Oral Implants Res 17 (6): 666–72.  
  13. ^ Schliephake H, Aref A, Scharnweber D, Bierbaum S, Roessler S, Sewing A (October 2005). "Effect of immobilized bone morphogenic protein 2 coating of titanium implants on peri-implant bone formation". Clin Oral Implants Res 16 (5): 563–9.  
  14. ^ Burkus JK, Gornet MF, Schuler TC, Kleeman TJ, Zdeblick TA (May 2009). "Six-year outcomes of anterior lumbar interbody arthrodesis with use of interbody fusion cages and recombinant human bone morphogenetic protein-2". J Bone Joint Surg Am 91 (5): 1181–9.  
  15. ^ Subach BR, Haid RW, Rodts GE, Kaiser MG (2001). "Bone morphogenetic protein in spinal fusion: overview and clinical update". Neurosurg Focus 10 (4): E3.  
  16. ^ Richter R (2011-06-28). "Medtronic's spinal fusion product shown to be harmful in bold review by medical journal and its Stanford editors". Inside Stanford Medicine (Stanford School of Medicine). Retrieved 2012-06-25. 
  17. ^ Carragee EJ, Hurwitz EL, Weiner BK (June 2011). "A critical review of recombinant human bone morphogenetic protein-2 trials in spinal surgery: emerging safety concerns and lessons learned" (PDF). Spine J 11 (6): 471–91.  

Further reading

  • Nickel J, Dreyer MK, Kirsch T, Sebald W (2001). "The crystal structure of the BMP-2:BMPR-IA complex and the generation of BMP-2 antagonists". J Bone Joint Surg Am. 83-A Suppl 1 (Pt 1): S7–14.  
  • Kawamura C, Kizaki M, Ikeda Y (2002). "Bone morphogenetic protein (BMP)-2 induces apoptosis in human myeloma cells". Leuk. Lymphoma 43 (3): 635–9.  
  • Marie PJ, Debiais F, Haÿ E (2002). "Regulation of human cranial osteoblast phenotype by FGF-2, FGFR-2 and BMP-2 signaling". Histol. Histopathol. 17 (3): 877–85.  

External links

  • BMPedia - the Bone Morphogenetic Protein Wiki
  • bone morphogenetic protein 2 at the US National Library of Medicine Medical Subject Headings (MeSH)
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