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Klein C, Gindraux F, Masquelet AC, Mentaverri R, Gouron R. Questions about Using the Induced Membrane Technique to Manage Cases of Congenital Tibial Pseudarthrosis. Cells 2023; 12:1918. [PMID: 37508581 PMCID: PMC10378057 DOI: 10.3390/cells12141918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 07/18/2023] [Accepted: 07/20/2023] [Indexed: 07/30/2023] Open
Abstract
The induced membrane technique is an innovative approach for repairing critical bone defects and has been applied recently in patients with congenital pseudarthrosis of the tibia (CPT). CPT is frequently associated with neurofibromatosis type 1 (NF1). Here, we briefly describe the clinical results of the induced membrane technique in NF1-deficient patients with CPT and in an animal model of CPT. Furthermore, we discuss the hypotheses used to explain inconsistent outcomes for the induced membrane technique in CPT-especially when associated with NF1.
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Affiliation(s)
- Céline Klein
- Department of Paediatric Orthopaedic Surgery, Amiens University Hospital, Jules Verne University of Picardie, F-80054 Amiens, France
- MP3CV-EA7517, CURS-Amiens University Medical Center, Jules Verne University of Picardie, F-80025 Amiens, France
- Service D'orthopédie et Traumatologie Pédiatrique, CHU Amiens-Picardie, F-80054 Amiens CEDEX 1, France
| | - Florelle Gindraux
- CHU Besançon, Service de Chirurgie Orthopédique, Traumatologique et Plastique, F-25000 Besançon, France
- Laboratoire de Nanomédecine, Imagerie, Université de Franche-Comté, Thérapeutique EA 4662 (LNIT), F-25000 Besançon, France
| | | | - Romuald Mentaverri
- MP3CV-EA7517, CURS-Amiens University Medical Center, Jules Verne University of Picardie, F-80025 Amiens, France
- CHU Besançon, Service de Chirurgie Orthopédique, Traumatologique et Plastique, F-25000 Besançon, France
- Laboratoire de Nanomédecine, Imagerie, Université de Franche-Comté, Thérapeutique EA 4662 (LNIT), F-25000 Besançon, France
- Hôpital Saint Antoine, Sorbonne Université, F-75006 Paris, France
- Department of Biochemistry and Endocrine Biology, Amiens University Medical Center, Jules Verne University of Picardie, F-80025 Amiens, France
| | - Richard Gouron
- Department of Paediatric Orthopaedic Surgery, Amiens University Hospital, Jules Verne University of Picardie, F-80054 Amiens, France
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miR-30a inhibits the osteogenic differentiation of the tibia-derived MSCs in congenital pseudarthrosis via targeting HOXD8. Regen Ther 2022; 21:477-485. [PMID: 36313394 PMCID: PMC9588990 DOI: 10.1016/j.reth.2022.09.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 09/02/2022] [Accepted: 09/12/2022] [Indexed: 11/21/2022] Open
Abstract
Background Congenital pseudarthrosis of the tibia (CPT) is an uncommon congenital deformity and a special subtype of bone nonunion. The lower ability of osteogenic differentiation in CPT-derived mesenchymal stem cells (MSCs) could result in progression of CPT, and miR-30a could inhibit osteogenic differentiation. However, the role of miR-30a in CPT-derived MSCs remains unclear. Methods The osteogenic differentiation of CPT-derived MSCs treated with the miR-30a inhibitor was tested by Alizarin Red S staining and alkaline phosphatase (ALP) activity. The expression levels of protein and mRNA were assessed by Western blot or quantitative reverse transcription-polymerase chain reaction (RT-qPCR), respectively. The interplay between miR-30a and HOXD8 was investigated by a dual-luciferase reporter assay. Chromatin immunoprecipitation (ChIP) was conducted to assess the binding relationship between HOXD8 and RUNX2 promoter. Results CPT-derived MSCs showed a lower ability of osteogenic differentiation than normal MSCs. miR-30a increased in CPT-derived MSCs, and miR-30a downregulation promoted the osteogenic differentiation of CPT-derived MSCs. Meanwhile, HOXD8 is a direct target for miR-30a, and HOXD8 could transcriptionally activate RUNX2. In addition, miR-30a could inhibit the osteogenic differentiation of CPT-derived MSCs by negatively regulating HOXD8. Conclusion miR-30a inhibits the osteogenic differentiation of CPT-derived MSCs by targeting HOXD8. Thus, this study might supply a novel strategy against CPT.
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Key Words
- 3′-UTR, 3′-untranslated region
- ADSCs, adipose-derived mesenchymal stem cells
- ALP, alkaline phosphatase
- ARS, Alizarin Red S
- CPT, congenital pseudarthrosis of the tibia
- ChIP, chromatin immunoprecipitation
- Congenital pseudarthrosis of the tibia
- DMEM, Dulbecco's modified Eagle's medium
- FBS, fetal bovine serum
- HOXD8
- HOXD8, Homeobox D8
- MSCs, mesenchymal stem cells
- OCN, osteocalcin
- OPN, osteopontin
- RT-qPCR, Quantitative reverse transcription PCR
- RUNX2
- RUNX2, runt-related transcription factor 2
- SD, standard deviation
- miR-30a
- miRNAs, MicroRNAs
- mut, mutant
- wt, wild-type
- α-MEM, α-minimum essential medium
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Xu J, Zhang Y, Zhu K, Li J, Guan Y, He X, Jin X, Bai G, Hu L. Clinical characteristics and in silico analysis of congenital pseudarthrosis of the tibia combined with neurofibromatosis type 1 caused by a novel NF1 mutation. Front Genet 2022; 13:991314. [PMID: 36246612 PMCID: PMC9553987 DOI: 10.3389/fgene.2022.991314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Accepted: 08/29/2022] [Indexed: 11/24/2022] Open
Abstract
Congenital pseudarthrosis of the tibia (CPT) is a rare congenital bone malformation, which has a strong relationship with Neurofibromatosis type 1 (NF1). NF1 is an autosomal dominant disease leading to multisystem disorders. Here, we presented the genotypic and phenotypic characteristics of one unique case of a five-generation Chinese family. The proband was CPT accompanied with NF1 due to NF1 mutation. The proband developed severe early-onset CPT combined with NF1 after birth. Appearance photos and X-ray images of the left limb of the proband showed significant bone malformation. Slit-lamp examination showed Lisch nodules in both eyes of the proband. Whole-exome sequencing (WES) and Sanger sequencing confirmed the truncation variant of NF1 (c.871G>T, p. E291*). Sequence conservative and evolutionary conservation analysis indicated that the novel mutation (p.E291*) was highly conserved. The truncated mutation led to the loss of functional domains, including CSRD, GRD, TBD, SEC14-PH, CTD, and NLS. It may explain why the mutation led to a severe clinical feature. Our report expands the genotypic spectrum of NF1 mutations and the phenotypic spectrum of CPT combined with NF1.
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Affiliation(s)
- Jingfang Xu
- Department of Orthopaedics, The Children’s Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Ying Zhang
- Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, China
| | - Kun Zhu
- Department of Pathology, The Children’s Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Jiabin Li
- Department of Pharmacy, The Children’s Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Yuelin Guan
- The Children’s Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Xinyu He
- The Children’s Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Xuejing Jin
- Centre for Evidence-based Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Guannan Bai
- Department of Child Health Care, The Children’s Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
- *Correspondence: Guannan Bai, ; Lidan Hu,
| | - Lidan Hu
- The Children’s Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
- *Correspondence: Guannan Bai, ; Lidan Hu,
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