RGD Reference Report - The disintegrin/metalloprotease ADAM 10 is essential for Notch signalling but not for alpha-secretase activity in fibroblasts. - Rat Genome Database

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The disintegrin/metalloprotease ADAM 10 is essential for Notch signalling but not for alpha-secretase activity in fibroblasts.

Authors: Hartmann, D  De Strooper, B  Serneels, L  Craessaerts, K  Herreman, A  Annaert, W  Umans, L  Lubke, T  Lena Illert, A  Von Figura, K  Saftig, P 
Citation: Hartmann D, etal., Hum Mol Genet 2002 Oct 1;11(21):2615-24.
RGD ID: 1300252
Pubmed: PMID:12354787   (View Abstract at PubMed)

The metalloprotease ADAM 10 is an important APP alpha-secretase candidate, but in vivo proof of this is lacking. Furthermore, invertebrate models point towards a key role of the ADAM 10 orthologues Kuzbanian and sup-17 in Notch signalling. In the mouse, this function is, however, currently attributed to ADAM 17/TACE, while the role of ADAM 10 remains unknown. We have created ADAM 10-deficient mice. They die at day 9.5 of embryogenesis with multiple defects of the developing central nervous system, somites, and cardiovascular system. In situ hybridization revealed a reduced expression of the Notch target gene hes-5 in the neural tube and an increased expression of the Notch ligand dll-1, supporting an important role for ADAM 10 in Notch signalling in the vertebrates as well. Since the early lethality precluded the establishment of primary neuronal cultures, APPs alpha generation was analyzed in embryonic fibroblasts and found to be preserved in 15 out of 17 independently generated ADAM 10-deficient fibroblast cell lines, albeit at a quantitatively more variable level than in controls, whereas a severe reduction was found in only two cases. The variability was not due to differences in genetic background or to variable expression of the alternative alpha-secretase candidates ADAM 9 and ADAM 17. These results indicate, therefore, either a regulation between ADAMs on the post-translational level or that other, not yet known, proteases are able to compensate for ADAM 10 deficiency. Thus, the observed variability, together with recent reports on tissue-specific expression patterns of ADAMs 9, 10 and 17, points to the existence of tissue-specific 'teams' of different proteases exerting alpha-secretase activity.

Molecular Pathway Annotations    Click to see Annotation Detail View

RGD Manual Annotations

TermQualifierEvidenceWithReferenceNotesSourceOriginal Reference(s)
Notch signaling pathway   ISS 1300252; 1300252 RGD 
Notch signaling pathway   IMP 1300252 RGD 
Objects Annotated

Genes (Rattus norvegicus)
Adam10  (ADAM metallopeptidase domain 10)

Genes (Mus musculus)
Adam10  (a disintegrin and metallopeptidase domain 10)

Genes (Homo sapiens)
ADAM10  (ADAM metallopeptidase domain 10)


Additional Information