Molecular Mechanisms of microRNA-494 Involving in Cerebral Ischemia

Ischemic Stroke Clinical Trial

Official title:

Study on the Molecular Mechanism of miR-494 Mediating Cell Cycle Regulation Following Cerebral Ischemia

Clinical Trial Details — Status: Recruiting

Administrative data

• NCT number: NCT03577093
• Other study ID #: miR-494
• Status: Recruiting
• Start date: June 6, 2018
• Est. completion date: December 2021

Study information

• Verified date: July 2018
• Source: Capital Medical University
• Contact: Luo Yumin
• Phone: 01083198129
• Email: yumin111[@]ccmu.edu.cn
• Is FDA regulated: No
• Study type: Observational

Clinical Trial Summary

We and other investigations suggested that the activation of nerve cell cycle following cerebral ischemia led to neuronal apoptosis, glial cell proliferation and the formation of glial scar.The cyclin-dependent kinases (CDKs) and cyclins jointly promoted the cell cycle progression. Our preliminary clinical trial found a new microRNA-miR-494, which involved in the occurrence of acute ischemic stroke. In our animal experiment, miR-494 could relieve cerebral ischemia injury through inhibiting cyclin-dependent kinase 6(CDK6), ubiquitin-conjugating enzyme E2L6 (UBE2L6) and histone deacetylase 3 (HDAC3), which suggested that miR-494 might play an important role in the regulation of cell cycle following cerebral ischemia. This project intends to verify the following hypothesis：①miR-494 suppresses CDK6, and/or fibroblast growth factor16(FGF16)-Ras-extracellular signal-regulated kinase(ERK)--v-myc avian myelocytomatosis viral oncogene homolog(MYC) pathway, and/or phosphatase and tensin homolog(PTEN)-/protein kinase B(AKT)-mechanistic target of rapamycin(mTOR)-S6k pathway;②miR-494 inhibits UBE2L6, upregulates the hypoxia-inducible factor 1 α(HIF-1α) expression in nerve cells, thereby increases the p21 and p27 protein levels and inhibits cyclin-dependent kinase2(CDK2)activity;③miR-494 represses HDAC3 and downregulates the cyclin-dependent kinase1(CDK1)protein level. These all mediate the cell cycle arrest of neurons and astrocytes, reduce the neuronal apoptosis and glial scar formation,promote the recovery of neurological function and provide new targets for the treatment of ischemic stroke.

Recruitment information / eligibility

• Status: Recruiting
• Enrollment: 600
• Est. completion date: December 2021
• Est. primary completion date: December 2021
• Gender: All
• Age group: 18 Years to 80 Years

Eligibility

Inclusion Criteria:

• (1)diagnosis of first ischemic stroke based on clinical information and magnetic resonance imaging; (2)presentation of subjects within 6h of the event; (3)National Institutes of Health Stroke Scale (NIHSS) score between 4 and 15.

Exclusion Criteria:

• (1)suspected cardiogenic embolism;(2)secondary stroke from cerebral hemorrhage, trauma, cancer or aneurysm and so on;(3)bleeding tendency;(4)severe cardiac,pulmonary,hepatic or renal insufficiency;(5)Vital signs are unstable to be assessed.

Related Conditions & MeSH terms

• Brain Ischemia
• Cerebral Infarction
• Ischemia
• Ischemic Stroke

Intervention

Other:
• There is no intervention at all.
There is no intervention at all.

Locations

Country	Name	City	State
China	Xuanwu Hospital	Beijing

Sponsors (1)

Lead Sponsor	Collaborator
Capital Medical University

Country where clinical trial is conducted

China, 

References & Publications (9)

Bizen N, Inoue T, Shimizu T, Tabu K, Kagawa T, Taga T. A growth-promoting signaling component cyclin D1 in neural stem cells has antiastrogliogenic function to execute self-renewal. Stem Cells. 2014 Jun;32(6):1602-15. doi: 10.1002/stem.1613. — View Citation

Demyanenko S, Uzdensky A. Profiling of Signaling Proteins in Penumbra After Focal Photothrombotic Infarct in the Rat Brain Cortex. Mol Neurobiol. 2017 Nov;54(9):6839-6856. doi: 10.1007/s12035-016-0191-x. Epub 2016 Oct 22. — View Citation

Fournier M, Orpinell M, Grauffel C, Scheer E, Garnier JM, Ye T, Chavant V, Joint M, Esashi F, Dejaegere A, Gönczy P, Tora L. KAT2A/KAT2B-targeted acetylome reveals a role for PLK4 acetylation in preventing centrosome amplification. Nat Commun. 2016 Oct 31 — View Citation

Iyirhiaro GO, Zhang Y, Estey C, O'Hare MJ, Safarpour F, Parsanejad M, Wang S, Abdel-Messih E, Callaghan SM, During MJ, Slack RS, Park DS. Regulation of ischemic neuronal death by E2F4-p130 protein complexes. J Biol Chem. 2014 Jun 27;289(26):18202-13. doi: — View Citation

Jiang Y, Hsieh J. HDAC3 controls gap 2/mitosis progression in adult neural stem/progenitor cells by regulating CDK1 levels. Proc Natl Acad Sci U S A. 2014 Sep 16;111(37):13541-6. doi: 10.1073/pnas.1411939111. Epub 2014 Aug 26. — View Citation

Liu L, Lu Y, Martinez J, Bi Y, Lian G, Wang T, Milasta S, Wang J, Yang M, Liu G, Green DR, Wang R. Proinflammatory signal suppresses proliferation and shifts macrophage metabolism from Myc-dependent to HIF1a-dependent. Proc Natl Acad Sci U S A. 2016 Feb 9 — View Citation

Nobs L, Baranek C, Nestel S, Kulik A, Kapfhammer J, Nitsch C, Atanasoski S. Stage-specific requirement for cyclin D1 in glial progenitor cells of the cerebral cortex. Glia. 2014 May;62(5):829-39. doi: 10.1002/glia.22646. Epub 2014 Feb 19. — View Citation

Zhao H, Luo Y, Liu X, Wang R, Yan F, Liu X, Li S, Leak RK, Ji X. Ischemic post-conditioning partially reverses cell cycle reactivity following ischemia/reperfusion injury: a genome-wide survey. CNS Neurol Disord Drug Targets. 2013 May 1;12(3):350-9. — View Citation

Zhao H, Wang J, Gao L, Wang R, Liu X, Gao Z, Tao Z, Xu C, Song J, Ji X, Luo Y. MiRNA-424 protects against permanent focal cerebral ischemia injury in mice involving suppressing microglia activation. Stroke. 2013 Jun;44(6):1706-13. doi: 10.1161/STROKEAHA.111.000504. Epub 2013 Apr 23. — View Citation

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	the molecular mechanism of miR-494 mediating cell cycle regulation following cerebral ischemia		through study completion, an average of 2 years