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Regulation and Func...
Regulation and Function of Lentiviral Vector-Mediated TCIRG1 Expression in Osteoclasts from Patients with Infantile Malignant Osteopetrosis : Implications for Gene Therapy
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- Thudium, Christian Schneider (författare)
- Nordic Bioscience AS
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- Moscatelli, Ilana (författare)
- Lund University,Lunds universitet,Avdelningen för molekylärmedicin och genterapi,Institutionen för laboratoriemedicin,Medicinska fakulteten,Division of Molecular Medicine and Gene Therapy,Department of Laboratory Medicine,Faculty of Medicine
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- Löfvall, Henrik (författare)
- Lund University,Lunds universitet,Avdelningen för molekylärmedicin och genterapi,Institutionen för laboratoriemedicin,Medicinska fakulteten,Division of Molecular Medicine and Gene Therapy,Department of Laboratory Medicine,Faculty of Medicine,Nordic Bioscience AS
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- Kertész, Zsuzsanna (författare)
- Lund University,Lunds universitet,Avdelningen för molekylär hematologi,Institutionen för laboratoriemedicin,Medicinska fakulteten,Division of Molecular Hematology (DMH),Department of Laboratory Medicine,Faculty of Medicine
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- Montano, Carmen (författare)
- Lund University,Lunds universitet,Avdelningen för molekylärmedicin och genterapi,Institutionen för laboratoriemedicin,Medicinska fakulteten,Division of Molecular Medicine and Gene Therapy,Department of Laboratory Medicine,Faculty of Medicine
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- Bjurström, Carmen Flores (författare)
- Lund University,Lunds universitet,Avdelningen för molekylär hematologi,Institutionen för laboratoriemedicin,Medicinska fakulteten,Division of Molecular Hematology (DMH),Department of Laboratory Medicine,Faculty of Medicine
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- Karsdal, Morten Asser (författare)
- Nordic Bioscience AS
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- Schulz, Ansgar (författare)
- University Hospital of Ulm
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- Richter, Johan (författare)
- Lund University,Lunds universitet,Avdelningen för molekylärmedicin och genterapi,Institutionen för laboratoriemedicin,Medicinska fakulteten,Division of Molecular Medicine and Gene Therapy,Department of Laboratory Medicine,Faculty of Medicine
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- Henriksen, Kim (författare)
- Nordic Bioscience AS
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(creator_code:org_t)
- 2016-08-19
- 2016
- Engelska 11 s.
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Ingår i: Calcified Tissue International. - : Springer Science and Business Media LLC. - 0171-967X .- 1432-0827. ; 99:6, s. 638-648
- Relaterad länk:
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http://dx.doi.org/10...
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Infantile malignant osteopetrosis (IMO) is a rare, recessive disorder characterized by increased bone mass caused by dysfunctional osteoclasts. The disease is most often caused by mutations in the TCIRG1 gene encoding a subunit of the V-ATPase involved in the osteoclasts capacity to resorb bone. We previously showed that osteoclast function can be restored by lentiviral vector-mediated expression of TCIRG1, but the exact threshold for restoration of resorption as well as the cellular response to vector-mediated TCIRG1 expression is unknown. Here we show that expression of TCIRG1 protein from a bicistronic TCIRG1/GFP lentiviral vector was only observed in mature osteoclasts, and not in their precursors or macrophages, in contrast to GFP expression, which was observed under all conditions. Thus, vector-mediated TCIRG1 expression appears to be post-transcriptionally regulated, preventing overexpression and/or ectopic expression and ensuring protein expression similar to that of wild-type osteoclasts. Codon optimization of TCIRG1 led to increased expression of mRNA but lower levels of protein and functional rescue. When assessing the functional rescue threshold in vitro, addition of 30 % CB CD34+ cells to IMO CD34+ patient cells was sufficient to completely normalize resorptive function after osteoclast differentiation. From both an efficacy and a safety perspective, these findings will clearly be of benefit during further development of gene therapy for osteopetrosis.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Reumatologi och inflammation (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Rheumatology and Autoimmunity (hsv//eng)
Nyckelord
- Gene therapy
- Lentivirus
- Osteoclast
- Osteopetrosis
- TCIRG1
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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Till lärosätets databas
- Av författaren/redakt...
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Thudium, Christi ...
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Moscatelli, Ilan ...
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Löfvall, Henrik
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Kertész, Zsuzsan ...
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Montano, Carmen
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Bjurström, Carme ...
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visa fler...
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Karsdal, Morten ...
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Schulz, Ansgar
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Richter, Johan
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Henriksen, Kim
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visa färre...
- Om ämnet
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- MEDICIN OCH HÄLSOVETENSKAP
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MEDICIN OCH HÄLS ...
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och Klinisk medicin
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och Reumatologi och ...
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Calcified Tissue ...
- Av lärosätet
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Lunds universitet