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Cited by 181

The DOI matches its Crossref record; 10 of the 10 references it cites were found in a registry or an index.

Disturbed Activation of Endoplasmic Reticulum Stress Transducers by Familial Alzheimer's Disease-linked Presenilin-1 Mutations

Open access
Katayama, Taiichi, Imaizumi, Kazunori, Honda, Akiko, Yoneda, Takunari, Kudo, Takashi, Takeda, Masatoshi, Mori, Kazutoshi, Rozmahel, Richard, Fraser, Paul, George-Hyslop, Peter St., Tohyama, Masaya·2001·Journal of Biological Chemistry

Abstract

Recent studies have shown independently that presenilin-1 (PS1) null mutants and familial Alzheimer's disease (FAD)-linked mutants should both down-regulate signaling of the unfolded protein response (UPR). However, it is difficult to accept that both mutants possess the same effects on the UPR. Furthermore, contrary to these observations, neither loss of PS1 and PS2 function nor expression of FAD-linked PS1 mutants were reported to have a discernable impact on the UPR. Therefore, re-examination and detailed analyses are needed to clarify the relationship between PS1 function and UPR signaling. Here, we report that PS1/PS2 null and dominant negative PS1 mutants, which are mutated at aspartate residue 257 or 385, did not affect signaling of the UPR. In contrast, FAD-linked PS1 mutants were confirmed to disturb UPR signaling by inhibiting activation of both Ire1alpha and ATF6, both of which are endoplasmic reticulum (ER) stress transducers in the UPR. Furthermore, PS1 mutants also disturbed activation of PERK (PKR-like ER kinase), which plays a crucial role in inhibiting translation during ER stress. Taken together, these observations suggested that PS1 mutations could affect signaling pathways controlled by each of the respective ER-stress transducers, possibly through a gain-of-function.

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Metadata

Authors
Katayama, T., Imaizumi, K., Honda, A., Yoneda, T., Kudo, T., Takeda, M., Mori, K., Rozmahel, R., Fraser, P., George-Hyslop, P. S., & Tohyama, M.
Venue
Journal of Biological Chemistry
Publisher
Elsevier BV
Published
2001-11
Volume
276
Issue
46
Pages
43446-43454
ISSN
0021-9258 (ISSN-L)
OpenAlex
W2145112854
Cited by
181
References
10
FWCI
2.48
Type
journal article
Language
en
Open access
hybrid

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CoChat. (2026). Citation check: Disturbed Activation of Endoplasmic Reticulum Stress Transducers by Familial Alzheimer's Disease-linked Presenilin-1 Mutations. https://app.cochat.ai/papers/10.1074/jbc.m104096200
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Katayama, T., Imaizumi, K., Honda, A., Yoneda, T., Kudo, T., Takeda, M., Mori, K., Rozmahel, R., Fraser, P., George-Hyslop, P. S., & Tohyama, M. (2001). Disturbed Activation of Endoplasmic Reticulum Stress Transducers by Familial Alzheimer's Disease-linked Presenilin-1 Mutations. Journal of Biological Chemistry. https://doi.org/10.1074/jbc.m104096200

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