Yujun Cai1,2, Xue-Lin Wang2, Jinny Lu2, Xin Lin3, Jonathan Dong2, Raul J Guzman1,2. 1. Division of Vascular Surgery and Endovascular Therapy, Department of Surgery, Yale University School of Medicine, New Haven, CT (Y.C., R.J.G.). 2. Division of Vascular and Endovascular Surgery, Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA (Y.C., X.-L.W., J.J., J.D., R.J.G.). 3. Channing Division of Network Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA (X.L.).
Abstract
Objective: Arterial restenosis is the pathological narrowing of arteries after endovascular procedures, and it is an adverse event that causes patients to experience recurrent occlusive symptoms. Following angioplasty, vascular smooth muscle cells (SMCs) change their phenotype, migrate, and proliferate, resulting in neointima formation, a hallmark of arterial restenosis. SIKs (salt-inducible kinases) are a subfamily of the AMP-activated protein kinase family that play a critical role in metabolic diseases including hepatic lipogenesis and glucose metabolism. Their role in vascular pathological remodeling, however, has not been explored. In this study, we aimed to understand the role and regulation of SIK3 in vascular SMC migration, proliferation, and neointima formation. Approach and Results: We observed that SIK3 expression was low in contractile aortic SMCs but high in proliferating SMCs. It was also highly induced by growth medium in vitro and in neointimal lesions in vivo. Inactivation of SIKs significantly attenuated vascular SMC proliferation and up-regulated p21CIP1 and p27KIP1. SIK inhibition also suppressed SMC migration and modulated actin polymerization. Importantly, we found that inhibition of SIKs reduced neointima formation and vascular inflammation in a femoral artery wire injury model. In mechanistic studies, we demonstrated that inactivation of SIKs mainly suppressed SMC proliferation by down-regulating AKT (protein kinase B) and PKA (protein kinase A)-CREB (cAMP response element-binding protein) signaling. CRTC3 (CREB-regulated transcriptional coactivator 3) signaling likely contributed to SIK inactivation-mediated antiproliferative effects. Conclusions: These findings suggest that SIK3 may play a critical role in regulating SMC proliferation, migration, and arterial restenosis. This study provides insights into SIK inhibition as a potential therapeutic strategy for treating restenosis in patients with peripheral arterial disease.
Objective: Arterial restenosis is the pathological narrowing of arteries after endovascular procedures, and it is an adverse event that causes patients to experience recurrent occlusive symptoms. Following angioplasty, vascular smooth muscle cells (SMCs) change their phenotype, migrate, and proliferate, resulting in neointima formation, a hallmark of arterial restenosis. SIKs (salt-inducible kinases) are a subfamily of the AMP-activated protein kinase family that play a critical role in metabolic diseases including hepatic lipogenesis and glucose metabolism. Their role in vascular pathological remodeling, however, has not been explored. In this study, we aimed to understand the role and regulation of SIK3 in vascular SMC migration, proliferation, and neointima formation. Approach and Results: We observed that SIK3 expression was low in contractile aortic SMCs but high in proliferating SMCs. It was also highly induced by growth medium in vitro and in neointimal lesions in vivo. Inactivation of SIKs significantly attenuated vascular SMC proliferation and up-regulated p21CIP1 and p27KIP1. SIK inhibition also suppressed SMC migration and modulated actin polymerization. Importantly, we found that inhibition of SIKs reduced neointima formation and vascular inflammation in a femoral artery wire injury model. In mechanistic studies, we demonstrated that inactivation of SIKs mainly suppressed SMC proliferation by down-regulating AKT (protein kinase B) and PKA (protein kinase A)-CREB (cAMP response element-binding protein) signaling. CRTC3 (CREB-regulated transcriptional coactivator 3) signaling likely contributed to SIK inactivation-mediated antiproliferative effects. Conclusions: These findings suggest that SIK3 may play a critical role in regulating SMC proliferation, migration, and arterial restenosis. This study provides insights into SIK inhibition as a potential therapeutic strategy for treating restenosis in patients with peripheral arterial disease.
Authors: Emma Henriksson; Johanna Säll; Amélie Gormand; Sebastian Wasserstrom; Nicholas A Morrice; Andreas M Fritzen; Marc Foretz; David G Campbell; Kei Sakamoto; Mikael Ekelund; Eva Degerman; Karin G Stenkula; Olga Göransson Journal: J Cell Sci Date: 2015-02-01 Impact factor: 5.285
Authors: Gregg W Stone; Stephen G Ellis; David A Cox; James Hermiller; Charles O'Shaughnessy; James Tift Mann; Mark Turco; Ronald Caputo; Patrick Bergin; Joel Greenberg; Jeffrey J Popma; Mary E Russell Journal: N Engl J Med Date: 2004-01-15 Impact factor: 91.245
Authors: Joshua D Stone; Avinash Narine; Patti R Shaver; Jonathan C Fox; Jackson R Vuncannon; David A Tulis Journal: Am J Physiol Heart Circ Physiol Date: 2012-11-30 Impact factor: 4.733
Authors: Grzegorz K Jakubiak; Natalia Pawlas; Grzegorz Cieślar; Agata Stanek Journal: Int J Environ Res Public Health Date: 2021-11-15 Impact factor: 3.390