## Abstract A rapid method to produce tetraploid embryos by blastomere fusion using polyethylene glycol (PEG) has been developed. Individual fourโcell stage blastomeres were aggregated into pairs with phytohemagglutinin (PHA) and then treated with 45% (w/v) PEG (MW 1,000). 56.8% (804/1,416) of trea
Reexpression of HPRT activity following cell fusion with polyethylene glycol
โ Scribed by Bohdan Bakay; Marsha Graf; Sharen Carey; Erkki Nissinen; William L. Nyhan
- Publisher
- Springer
- Year
- 1978
- Tongue
- English
- Weight
- 538 KB
- Volume
- 16
- Category
- Article
- ISSN
- 0006-2928
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โฆ Synopsis
Polyethylene glycol-1000 (PEG-1000) induced fusion of HPRT (E.C. 2.4.2.8) deficient Chinese hamster cells with alpha-galactosidase A (E.C. 2.3.1.22) deficient cells from a patient with Fabry's disease yielded hybrids which contained both human and hamster HPRT, G6PD (E.C. 1.1.1.49), and APRT (E.C. 2.4.2.7) and Chinese hamster alpha-galactosidase B. Thus PEG-1000 mediated somatic cell fusion led to reexpression of Chinese hamster HPRT. It did not restore the expression of human alpha-galactosidase. Since PEG-1000 treatment of HPRT- Chinese hamster cells in the absence of human cells yielded no HPRT+ cells, it is concluded that the element responsible for the restoration of rodent HPRT was contributed by the human cells and not by the agent employed to promote fusion.
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