Encapsulation cell therapy for mucopolysaccharidosis type VII using genetically engineered immortalized human amniotic epithelial cells

The Tohoku Journal of Experimental Medicine
Hideyuki NakamaNorio Sakuragawa

Abstract

Mucopolysaccharidosis type VII (MPSVII) is a lysosomal storage disease resulted from a deficiency of the enzyme beta-glucuronidase (GUSB), which is necessary for degradation of glycosaminoglycans (GAGs). The deficiency of GUSB causes progressive accumulation of GAGs and subsequent lysosomal distension in multiple tissues, including the central nervous system (CNS). In murine experiments, bone marrow transplant, enzyme replacement, viral vectors, and genetically modified cells were successfully used for correction of the visceral accumulation of GAGs, but little improvement was seen in the brain, because these therapeutic agents cannot cross the blood-brain barrier (BBB). Although direct intracerebral injection of GUSB-encoding viral vectors has been developed to bypass the BBB, the possibility of tumor formation and the toxicity of over-expressed GUSB have been reported. In this study, we generated immortalized human amniotic epithelial (IHAE) cells to maintain the effect of implantation, and encapsulated these cells to prevent harmful immunological response and tumor formation and to regulate the level of GUSB expression within the host. Moreover, we generated IHAE cells that over-express and secrete human GUSB following trans...Continue Reading

References

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Citations

Feb 11, 2014·Journal of Inherited Metabolic Disease·Bas W M van BalkomMarianne C Verhaar
May 27, 2011·Journal of Inherited Metabolic Disease·Ursula MatteRoberto Giugliani
Jan 24, 2014·Expert Opinion on Drug Delivery·Guilherme BaldoUrsula Matte
Dec 20, 2011·Journal of Healthcare Engineering·Wujie Zhang, Xiaoming He
Dec 29, 2009·Neuropharmacology·Lamya S Shihabuddin, Isabelle Aubert
Sep 16, 2008·Journal of Controlled Release : Official Journal of the Controlled Release Society·Ainhoa MuruaJosé Luis Pedraz
Feb 20, 2013·Journal of Microencapsulation·Valeska Lizzi LagranhaUrsula Matte
May 19, 2019·Cellular and Molecular Life Sciences : CMLS·Azam SafaryMohammad A Rafi
Sep 14, 2018·BioImpacts : BI·Azam SafaryMohammad A Rafi

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