We have investigated the effect of the Alzheimer amyloid protein precursor (APP) on the proliferation of neural stem cells. Two secretory forms of APP (sAPP770 and sAPP695, with and without the Kunitz-type serine protease inhibitor domain, respectively) were purified from conditioned media of COS-7 cells transfected with genetically modified APP cDNAs. Both secretory APPs promoted the growth of neural stem cells, and the effect of sAPP770 was greater than that of sAPP695. sAPP770 and known growth factors in combination exerted a cooperative stimulation of the stem cell proliferation. These results suggest that APP, especially APP possessing the protease inhibitor domain, regulates the growth of neuronal precursor cells during development of the nervous system. (C) 1994 Academic Press, Inc.
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UNIV BRITISH COLUMBIA, DEPT MED, DIV NEUROL, VANCOUVER V6T 1W5, BC, CANADAUNIV BRITISH COLUMBIA, DEPT MED, DIV NEUROL, VANCOUVER V6T 1W5, BC, CANADA
MIZUGUCHI, M
IKEDA, K
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UNIV BRITISH COLUMBIA, DEPT MED, DIV NEUROL, VANCOUVER V6T 1W5, BC, CANADAUNIV BRITISH COLUMBIA, DEPT MED, DIV NEUROL, VANCOUVER V6T 1W5, BC, CANADA
IKEDA, K
NAMBA, Y
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UNIV BRITISH COLUMBIA, DEPT MED, DIV NEUROL, VANCOUVER V6T 1W5, BC, CANADAUNIV BRITISH COLUMBIA, DEPT MED, DIV NEUROL, VANCOUVER V6T 1W5, BC, CANADA
NAMBA, Y
KIM, SU
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UNIV BRITISH COLUMBIA, DEPT MED, DIV NEUROL, VANCOUVER V6T 1W5, BC, CANADAUNIV BRITISH COLUMBIA, DEPT MED, DIV NEUROL, VANCOUVER V6T 1W5, BC, CANADA
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Univ Wisconsin, Dept Med, Sect Geriatr & Gerontol, Madison, WI 53705 USA
Vet Affairs Hosp, Ctr Geriatr Res Educ & Clin, Madison, WI 53705 USAUniv Wisconsin, Dept Med, Sect Geriatr & Gerontol, Madison, WI 53705 USA
Porayette, Prashob
Gallego, Miguel J.
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Univ Wisconsin, Dept Med, Sect Geriatr & Gerontol, Madison, WI 53705 USA
Vet Affairs Hosp, Ctr Geriatr Res Educ & Clin, Madison, WI 53705 USAUniv Wisconsin, Dept Med, Sect Geriatr & Gerontol, Madison, WI 53705 USA
Gallego, Miguel J.
Kaltcheva, Maria M.
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Univ Wisconsin, Dept Med, Sect Geriatr & Gerontol, Madison, WI 53705 USA
Vet Affairs Hosp, Ctr Geriatr Res Educ & Clin, Madison, WI 53705 USAUniv Wisconsin, Dept Med, Sect Geriatr & Gerontol, Madison, WI 53705 USA
Kaltcheva, Maria M.
Bowen, Richard L.
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OTB Res, Raleigh, NC 27615 USAUniv Wisconsin, Dept Med, Sect Geriatr & Gerontol, Madison, WI 53705 USA
Bowen, Richard L.
Meethal, Sivan Vadakkadath
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Univ Wisconsin, Dept Med, Sect Geriatr & Gerontol, Madison, WI 53705 USA
Vet Affairs Hosp, Ctr Geriatr Res Educ & Clin, Madison, WI 53705 USAUniv Wisconsin, Dept Med, Sect Geriatr & Gerontol, Madison, WI 53705 USA
Meethal, Sivan Vadakkadath
Atwood, Craig S.
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Univ Wisconsin, Dept Med, Sect Geriatr & Gerontol, Madison, WI 53705 USA
Vet Affairs Hosp, Ctr Geriatr Res Educ & Clin, Madison, WI 53705 USA
Case Western Reserve Univ, Inst Pathol, Cleveland, OH 44106 USA
Edith Cowan Univ, Sch Exercise Biomed & Hlth Sci, Joondalup, WA 6027, AustraliaUniv Wisconsin, Dept Med, Sect Geriatr & Gerontol, Madison, WI 53705 USA