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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Mesenchymal Stem Cells Do Not Prevent Antibody Responses against Human alpha-L-Iduronidase when Used to Treat Mucopolysaccharidosis Type I

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Autor(es):
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Matsumoto Martin, Priscila Keiko [1, 2] ; Stilhano, Roberta Sessa [1, 2] ; Samoto, Vivian Yochiko [3] ; Takiya, Christina Maeda [3] ; Peres, Giovani Bravin [4] ; Correa da Silva Michelacci, Yara Maria [4] ; da Silva, Flavia Helena [2, 5] ; Pereira, Vanessa Goncalves [6] ; D'Almeida, Vania [6] ; Navarro Marques, Fabio Luiz [7] ; Otake, Andreia Hanada [8, 9] ; Chammas, Roger [8, 9] ; Han, Sang Won [2, 1]
Número total de Autores: 13
Afiliação do(s) autor(es):
[1] Univ Fed Sao Paulo, Dept Biophys, Sao Paulo - Brazil
[2] Univ Fed Sao Paulo, Res Ctr Gene Therapy, Sao Paulo - Brazil
[3] Univ Fed Rio de Janeiro, Carlos Chagas Filho Inst Biophys, Rio De Janeiro - Brazil
[4] Univ Fed Sao Paulo, Dept Biochem, Sao Paulo - Brazil
[5] Univ Fed Rio Grande do Sul, Dept Genet, Sao Paulo - Brazil
[6] Univ Fed Sao Paulo, Dept Pediat, Sao Paulo - Brazil
[7] Univ Sao Paulo, Nucl Med Ctr, Sao Paulo - Brazil
[8] Univ Sao Paulo, Sch Med, Dept Radiol & Oncol, Expt Oncol Lab, Sao Paulo - Brazil
[9] Canc Inst Sao Paulo State, Translat Invest Ctr Oncol, Sao Paulo - Brazil
Número total de Afiliações: 9
Tipo de documento: Artigo Científico
Fonte: PLoS One; v. 9, n. 3 MAR 18 2014.
Citações Web of Science: 6
Resumo

Mucopolysaccharidosis type I (MPSI) is an autosomal recessive disease that leads to systemic lysosomal storage, which is caused by the absence of alpha-L-iduronidase (IDUA). Enzyme replacement therapy is recognized as the best therapeutic option for MPSI; however, high titers of anti-IDUA antibody have frequently been observed. Due to the immunosuppressant properties of MSC, we hypothesized that MSC modified with the IDUA gene would be able to produce IDUA for a long period of time. Sleeping Beauty transposon vectors were used to modify MSC because these are basically less-immunogenic plasmids. For cell transplantation, 4x10(6) MSC-KO-IDUA cells (MSC from KO mice modified with IDUA) were injected into the peritoneum of KO-mice three times over intervals of more than one month. The total IDUA activities from MSC-KO-IDUA before cell transplantation were 9.6, 120 and 179 U for the first, second and third injections, respectively. Only after the second cell transplantation, more than one unit of IDUA activity was detected in the blood of 3 mice for 2 days. After the third cell transplantation, a high titer of anti-IDUA antibody was detected in all of the treated mice. Anti-IDUA antibody response was also detected in C57Bl/6 mice treated with MSC-WT-IDUA. The antibody titers were high and comparable to mice that were immunized by electroporation. MSC-transplanted mice had high levels of TNF-alpha and infiltrates in the renal glomeruli. The spreading of the transplanted MSC into the peritoneum of other organs was confirmed after injection of In-111-labeled MSC. In conclusion, the antibody response against IDUA could not be avoided by MSC. On the contrary, these cells worked as an adjuvant that favored IDUA immunization. Therefore, the humoral immunosuppressant property of MSC is questionable and indicates the danger of using MSC as a source for the production of exogenous proteins to treat monogenic diseases. (AU)

Processo FAPESP: 08/56529-1 - Terapia gênica in vivo e ex vivo para mucopolissacaridose tipo I utilizando o sistema sleeping beauty e células-tronco mesenquimais em modelo murino
Beneficiário:Priscila Keiko Matsumoto Martin
Linha de fomento: Bolsas no Brasil - Mestrado
Processo FAPESP: 09/52235-6 - Terapia gênica de mucopolissacaridose tipo I em modelo murino
Beneficiário:Sang Won Han
Linha de fomento: Auxílio à Pesquisa - Regular
Processo FAPESP: 08/56530-0 - Terapia gênica de mucopolissacaridose tipo I com o sistema C31 em modelo murino
Beneficiário:Roberta Sessa Stilhano Yamaguchi
Linha de fomento: Bolsas no Brasil - Mestrado