Cited by 360Circular RNAs in diseasesNeuroinflammation and Neurodegeneration MechanismsAcute Ischemic Stroke Management

Novel insight into circular RNA HECTD1 in astrocyte activation via autophagy by targeting MIR142 -TIPARP: implications for cerebral ischemic stroke

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Han, Bing, Zhang, Yuan, Zhang, Yanhong, Bai, Ying, Chen, Xufeng, Huang, Rongrong, Wu, Fangfang, Leng, Shuo +4 more·2018·Autophagy

Abstract

Circular RNAs (circRNAs) are highly expressed in the central nervous system and are involved in the regulation of physiological and pathophysiological processes. However, the potential role of circRNAs in stroke remains largely unknown. Here, using a circRNA microarray, we showed that circular RNA Hectd1 (circHectd1) levels were significantly increased in ischemic brain tissues in transient middle cerebral artery occlusion (tMCAO) mouse stroke models and further validated this finding in plasma samples from acute ischemic stroke (AIS) patients. Knockdown of circHectd1 expression significantly decreased infarct areas, attenuated neuronal deficits, and ameliorated astrocyte activation in tMCAO mice. Mechanistically, circHECTD1 functions as an endogenous MIR142 (microRNA 142) sponge to inhibit MIR142 activity, resulting in the inhibition of TIPARP (TCDD inducible poly[ADP-ribose] polymerase) expression with subsequent inhibition of astrocyte activation via macroautophagy/autophagy. Taken together, the results of our study indicate that circHECTD1 and its coupling mechanism are involved in cerebral ischemia, thus providing translational evidence that circHECTD1 can serve as a novel biomarker of and therapeutic target for stroke. ABBREVIATIONS: 3-MA: 3-methyladenine; ACTB: actin beta; AIS: acute ischemic stroke; AS: primary mouse astrocytes; BECN1: beclin 1, autophagy related; BMI: body mass index; circHECTD1: circRNA HECTD1; circRNAs: circular RNAs; CBF: cerebral blood flow; Con: control; DAPI: 4',6-diamidino-2-phenylindole; ECA: external carotid artery; FISH: fluorescence in situ hybridization; GAPDH: glyceraldehyde-3-phosphate dehydrogenase; Gdna: genomic DNA; GFAP: glial fibrillary acidic protein; GO: gene ontology; HDL: high-density lipoprotein; IOD: integrated optical density; LDL: low-density lipoprotein; LPA: lipoprotein(a); MAP1LC3B: microtubule-associated protein 1 light chain 3 beta; MIR142: microRNA 142; mNSS: modified neurological severity scores; MRI: magnetic resonance imaging; NIHSS: National Institute of Health Stoke Scale; OGD-R: oxygen glucose deprivation-reperfusion; PCR: polymerase chain reaction; PFA: paraformaldehyde; SQSTM1: sequestosome 1; TIPARP: TCDD inducible poly(ADP-ribose) polymerase; tMCAO: transient middle cerebral artery occlusion; TTC: 2,3,5-triphenyltetrazolium chloride; UTR: untranslated region; WT: wild type.

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Authors
Han, B., Zhang, Y., Zhang, Y., Bai, Y., Chen, X., Huang, R., Wu, F., Leng, S., Chao, J., Zhang, J. H., Hu, G., & Yao, H.
Affiliations
  • Southeast University (CN)
  • Jiangsu Province Hospital (CN)
  • Loma Linda University (US)
  • Nanjing Medical University (CN)
Corresponding author
Yao, Honghong
Venue
Autophagy
Published
2018-07-03
Volume
14
Issue
7
Pages
1164-1184
ISSN
  • 1554-8627 (ISSN-L)
  • 1554-8635
OpenAlex
W2810401400
Cited by
360
References
74
Citations by year
2026: 13 · 2025: 35 · 2024: 38 · 2023: 59 · 2022: 60 · 2021: 64 · 2020: 53 · 2019: 33 · 2018: 5
FWCI
13.96
Type
journal article
Language
en
Open access
Locations
  • Autophagy (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Natural Science Foundation of China (81673410, 81473190, 81603090)
  • Postgraduate Research & Practice Innovation Program of Jiangsu Province (KYZZ16_0127)
  • Major State Basic Research Developmen (2013CB733800/2013CB733803)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Circular RNAs in diseases
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Health Sciences › Medicine › Epidemiology › Acute Ischemic Stroke Management
Keywords
circular RNA, acute ischemic stroke, astrocyte activation, TIPARP, microRNA sponge, transient middle cerebral artery occlusion, stroke biomarkers, therapeutic target, infarct size, neuroinflammation, plasma biomarkers, circRNA microarray
MeSH terms
RNA, Circular, Aged, Animals, Astrocytes, Autophagy, Base Sequence, Brain Ischemia, Female, Humans, Male, Mice, Inbred C57BL, Poly(ADP-ribose) Polymerases, RNA, Up-Regulation, Infarction, Middle Cerebral Artery, Brain Infarction, Stroke, Nucleoside Transport Proteins, MicroRNAs

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