RGD Reference Report - Activation of apoptosis signal-regulating kinase 1 in injured artery and its critical role in neointimal hyperplasia. - Rat Genome Database

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Activation of apoptosis signal-regulating kinase 1 in injured artery and its critical role in neointimal hyperplasia.

Authors: Izumi, Y  Kim, S  Yoshiyama, M  Izumiya, Y  Yoshida, K  Matsuzawa, A  Koyama, H  Nishizawa, Y  Ichijo, H  Yoshikawa, J  Iwao, H 
Citation: Izumi Y, etal., Circulation. 2003 Dec 2;108(22):2812-8. Epub 2003 Nov 24.
RGD ID: 10412321
Pubmed: PMID:14638553   (View Abstract at PubMed)
DOI: DOI:10.1161/01.CIR.0000096486.01652.FC   (Journal Full-text)

BACKGROUND: Apoptosis signal-regulating kinase 1 (ASK1), recently identified as one of the mitogen-activated protein kinase kinase kinases, is activated by various extracellular stimuli and involved in a variety of cellular function. Therefore, we first examined the role of ASK1 in vascular remodeling. METHODS AND RESULTS: We used rat balloon injury model and cultured vascular smooth muscle cells (VSMCs). Arterial ASK1 activity was rapidly and dramatically increased after balloon injury. To specifically inhibit endogenous ASK1 activation, dominant-negative mutant of ASK1 (DN-ASK1) was transfected into rat carotid artery before balloon injury. Gene transfer of DN-ASK1 significantly prevented neointimal formation at 14 days after injury. Bromodeoxyuridine labeling index at 7 days after injury showed that DN-ASK1 remarkably suppressed VSMC proliferation in both the intima and the media. We also examined the role of ASK1 in cultured rat VSMCs. Infection with DN-ASK1 significantly attenuated serum-induced VSMC proliferation and migration. We also compared neointimal formation after cuff placement around the femoral artery between mice deficient in ASK1 (ASK1-/- mice) and wild-type (WT) mice. Neointimal formation at 28 days after cuff injury in ASK1-/- mice was significantly attenuated compared with WT mice. Furthermore, we compared the proliferation and migration of VSMCs isolated from ASK1-/- mice with WT mice. Both proliferation and migration of VSMCs from ASK1-/- mice were significantly attenuated compared with VSMCs from WT mice. CONCLUSIONS: ASK1 activation plays the key role in vascular intimal hyperplasia. ASK1 may provide the basis for the development of new therapeutic strategy for vascular diseases.

RGD Manual Disease Annotations    Click to see Annotation Detail View
TermQualifierEvidenceWithReferenceNotesSourceOriginal Reference(s)
Arterial Injury  ISOMap3k5 (Mus musculus)10412321; 10412321 RGD 
Arterial Injury  IMP 10412321 RGD 
Carotid Artery Injuries  ISOMap3k5 (Rattus norvegicus)10412321; 10412321protein:increased activity:carotid artery:RGD 
Carotid Artery Injuries  IEP 10412321protein:increased activity:carotid artery:RGD 
Neointima treatmentISOMap3k5 (Rattus norvegicus)10412321; 10412321 RGD 
Neointima treatmentIMP 10412321 RGD 

Gene Ontology Annotations    Click to see Annotation Detail View

Biological Process
TermQualifierEvidenceWithReferenceNotesSourceOriginal Reference(s)
positive regulation of vascular associated smooth muscle cell proliferation  IMP 10412321 RGD 

Objects Annotated

Genes (Rattus norvegicus)
Map3k5  (mitogen-activated protein kinase kinase kinase 5)

Genes (Mus musculus)
Map3k5  (mitogen-activated protein kinase kinase kinase 5)

Genes (Homo sapiens)
MAP3K5  (mitogen-activated protein kinase kinase kinase 5)


Additional Information