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van Dijk FS, Nesbitt IM, Zwikstra EH, Nikkels PG, Piersma SR, Fratantoni SA, Jimenez CR, Huizer M, Morsman AC, Cobben JM, van Roij MH, Elting MW, Verbeke JI, Wijnaendts LC, Shaw NJ, Högler W, McKeown C, Sistermans EA, Dalton A, Meijers-Heijboer H, Pals G. PPIB mutations cause severe osteogenesis imperfecta. Am J Hum Genet 2009; 85:521-7. [PMID: 19781681 PMCID: PMC2756556 DOI: 10.1016/j.ajhg.2009.09.001] [Citation(s) in RCA: 188] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2009] [Revised: 08/20/2009] [Accepted: 09/01/2009] [Indexed: 11/25/2022] Open
Abstract
Deficiency of cartilage-associated protein (CRTAP) or prolyl 3-hydroxylase 1(P3H1) has been reported in autosomal-recessive lethal or severe osteogenesis imperfecta (OI). CRTAP, P3H1, and cyclophilin B (CyPB) form an intracellular collagen-modifying complex that 3-hydroxylates proline at position 986 (P986) in the alpha1 chains of collagen type I. This 3-prolyl hydroxylation is decreased in patients with CRTAP and P3H1 deficiency. It was suspected that mutations in the PPIB gene encoding CyPB would also cause OI with decreased collagen 3-prolyl hydroxylation. To our knowledge we present the first two families with recessive OI caused by PPIB gene mutations. The clinical phenotype is compatible with OI Sillence type II-B/III as seen with COL1A1/2, CRTAP, and LEPRE1 mutations. The percentage of 3-hydroxylated P986 residues in patients with PPIB mutations is decreased in comparison to normal, but it is higher than in patients with CRTAP and LEPRE1 mutations. This result and the fact that CyPB is demonstrable independent of CRTAP and P3H1, along with reported decreased 3-prolyl hydroxylation due to deficiency of CRTAP lacking the catalytic hydroxylation domain and the known function of CyPB as a cis-trans isomerase, suggest that recessive OI is caused by a dysfunctional P3H1/CRTAP/CyPB complex rather than by the lack of 3-prolyl hydroxylation of a single proline residue in the alpha1 chains of collagen type I.
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Affiliation(s)
- Fleur S. van Dijk
- Department of Clinical Genetics, VU University Medical Centre, De Boelelaan 1117, P.O. box 7057, 1007 MB Amsterdam, The Netherlands
| | - Isabel M. Nesbitt
- Sheffield Molecular Genetics Service, Sheffield Children's National Health Service Foundation Trust, Sheffield Children's Hospital, Western Bank Sheffield, South Yorkshire, S10 2TH, United Kingdom
| | - Eline H. Zwikstra
- Department of Clinical Genetics, VU University Medical Centre, De Boelelaan 1117, P.O. box 7057, 1007 MB Amsterdam, The Netherlands
| | - Peter G.J. Nikkels
- Department of Pathology, University Medical Centre Utrecht, Heidelberglaan 100, P.O. box 85500, 3508 GA, Utrecht, the Netherlands
| | - Sander R. Piersma
- Oncoproteomics Laboratory, Department of Medical Oncology, VU University Medical Centre, De Boelelaan 1117, P.O. box 7057, 1007 MB Amsterdam, The Netherlands
| | - Silvina A. Fratantoni
- Oncoproteomics Laboratory, Department of Medical Oncology, VU University Medical Centre, De Boelelaan 1117, P.O. box 7057, 1007 MB Amsterdam, The Netherlands
| | - Connie R. Jimenez
- Oncoproteomics Laboratory, Department of Medical Oncology, VU University Medical Centre, De Boelelaan 1117, P.O. box 7057, 1007 MB Amsterdam, The Netherlands
| | - Margriet Huizer
- Department of Clinical Genetics, VU University Medical Centre, De Boelelaan 1117, P.O. box 7057, 1007 MB Amsterdam, The Netherlands
| | - Alice C. Morsman
- Sheffield Molecular Genetics Service, Sheffield Children's National Health Service Foundation Trust, Sheffield Children's Hospital, Western Bank Sheffield, South Yorkshire, S10 2TH, United Kingdom
| | - Jan M. Cobben
- Department of Pediatric genetics, Emma Children Hospital, Academic Medical Centre, Meibergdreef 9, P.O. box 22660, 1100 DD Amsterdam, the Netherlands
| | - Mirjam H.H. van Roij
- Department of Clinical Genetics, VU University Medical Centre, De Boelelaan 1117, P.O. box 7057, 1007 MB Amsterdam, The Netherlands
| | - Mariet W. Elting
- Department of Clinical Genetics, VU University Medical Centre, De Boelelaan 1117, P.O. box 7057, 1007 MB Amsterdam, The Netherlands
| | - Jonathan I.M.L. Verbeke
- Department of Radiology, VU University Medical Centre, De Boelelaan 1117, P.O. box 7057, 1007 MB Amsterdam, The Netherlands
| | - Liliane C.D. Wijnaendts
- Department of Pathology, VU University Medical Centre, De Boelelaan 1117, P.O. box 7057, 1007 MB Amsterdam, The Netherlands
| | - Nick J. Shaw
- Department of Pediatric Endocrinology, Birmingham Children's Hospital, Steelhouse Lane, Birmingham, West Midlands B4 6NH, United Kingdom
| | - Wolfgang Högler
- Department of Pediatric Endocrinology, Birmingham Children's Hospital, Steelhouse Lane, Birmingham, West Midlands B4 6NH, United Kingdom
| | - Carole McKeown
- West Midlands Regional Genetic Service, Birmingham Women's Hospital, Metchley Park Rd, Birmingham B15, United Kingdom
| | - Erik A. Sistermans
- Department of Clinical Genetics, VU University Medical Centre, De Boelelaan 1117, P.O. box 7057, 1007 MB Amsterdam, The Netherlands
| | - Ann Dalton
- Sheffield Molecular Genetics Service, Sheffield Children's National Health Service Foundation Trust, Sheffield Children's Hospital, Western Bank Sheffield, South Yorkshire, S10 2TH, United Kingdom
| | - Hanne Meijers-Heijboer
- Department of Clinical Genetics, VU University Medical Centre, De Boelelaan 1117, P.O. box 7057, 1007 MB Amsterdam, The Netherlands
| | - Gerard Pals
- Centre for Connective Tissue Research, Department of Clinical Genetics, VU University Medical Centre, De Boelelaan 1117, P.O. box 7057, 1007 MB Amsterdam, The Netherlands
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