scholarly journals Role of microRNAs in Stroke and Poststroke Depression

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Han Yan ◽  
Min Fang ◽  
Xue-Yuan Liu

microRNAs (miRNA), a sort of noncoding RNAs widely distributed in eukaryotic cells, could regulate gene expression by inhibiting transcription or translation. They were involved in important physiological and pathological processes including growth, development, and occurrence and progression of diseases. miRNAs are crucial for the development of the nervous system. Recent studies have demonstrated that some miRNAs play important roles in the occurrence and development of ischemic cerebrovascular diseases such as stroke and were also involved in the occurrence and development of poststroke depression (PSD). Herein, studies on the role of miRNAs in the cerebral ischemia and PSD were reviewed, and results may be helpful for the diagnosis and prognosis of cerebral ischemia and PSD with miRNAs in clinical practice.

Author(s):  
Fangfang Zhao ◽  
Yumin Luo

: Chronic cerebral ischemia is one of the common ischemic cerebrovascular diseases. Chronic cerebral ischemia can lead to brain dysfunction, and its pathophysiological mechanism involves inflammation, blood-brain barrier destruction, oxidative stress, and other factors. Due to it being difficult to detect, it is easily overlooked, and it is often only observed following onset of cognitive dysfunction. At present, there are few drugs for this treatment. DL-3-N-BUTYLPHTHALIDE (NBP), a compound extracted from celery seed, may play an important role in protecting against brain damage caused by chronic cerebral ischemia. Therefore, we pay more attention to the prevention and treatment of NBP on chronic cerebral ischemia.


2016 ◽  
Vol 2016 ◽  
pp. 1-11 ◽  
Author(s):  
Yong Peng Yu ◽  
Lan Tan

Accurate definition and better understanding of the mechanisms of stroke are crucial as this will guide the effective care and therapy. In this paper, we review the previous basic and clinical researches on the causes or mechanisms of ischemic cerebrovascular diseases (ICVD) and interpret the correlation between embolism and hypoperfusion based on vascular stenosis and arterial intimal lesions. It was suggested that if there is no embolus (dynamic or in situ emboli), there might be no cerebral infarction. Three kinds of different clinical outcomes of TIA were theoretically interpreted based on its mechanisms. We suppose that there is a correlation between embolism and hypoperfusion, and which mechanisms (hypoperfusion or hypoperfusion induced microemboli) playing the dominant role in each type of ICVD depends on the unique background of arterial intimal lesions (the vulnerability of vessels). That is to say, the vulnerability of vessels is involved in the role of embolism and hypoperfusion in the mechanisms of ischemic cerebrovascular diseases. This inference might enrich and provide better understandings for the underlying etiologies of ischemic cerebrovascular events.


Author(s):  
Wuwen Zhang ◽  
Qinshi Wang ◽  
Yi Yang ◽  
Siyuan Zhou ◽  
Ping Zhang ◽  
...  

AbstractExosomes play a vital role in cell–cell communication within the cancer microenvironment. Exosomal long noncoding RNAs (lncRNAs) are important regulators in cancer development and are involved in multiple processes, including cancer cell proliferation, angiogenesis, metastasis, drug resistance, and immunomodulation. Changes in the levels of exosomal lncRNAs often appear with the occurrence and development of cancer. Therefore, exosomal lncRNAs can be used as biomarkers for cancer diagnosis and prognosis. Exosomal lncRNAs can also indicate the treatment response of patients receiving chemotherapy. Moreover, exosomal lncRNAs are potential therapeutic targets for cancer treatment. In this review, we summarize the role of exosomal lncRNAs in cancer biology as well as in clinical management. A more comprehensive and in-depth understanding of the role of exosomal lncRNAs in cancer may help us better understand the mechanism of cancer development and clinically manage cancer patients.


2011 ◽  
Vol 2011 ◽  
pp. 1-12 ◽  
Author(s):  
Francesca Marini ◽  
Ettore Luzi ◽  
Maria Luisa Brandi

MicroRNAs (miRNAs) are endogenous noncoding RNAs that negatively regulate gene expression by binding the 3′noncoding region of the messenger RNA targets inducing their cleavage or blocking the protein translation. They play important roles in multiple biological and metabolic processes, including developmental timing, signal transduction, and cell maintenance and differentiation. Their deregulation can predispose to diseases and cancer. miRNA expression has been demonstrated to be deregulated in many types of human tumors, including thyroid cancers, and could be responsible for tumor initiation and progression. In this paper we reviewed the available data on miRNA deregulation in different thyroid tumors and describe the putative role of miRNA in thyroid cancer development.


2017 ◽  
Vol 37 (5) ◽  
Author(s):  
Ling-Ping Zhu ◽  
Yun-Jie He ◽  
Jun-Chen Hou ◽  
Xiu Chen ◽  
Si-Ying Zhou ◽  
...  

Circular RNAs (circRNAs) are recently regarded as a naturally forming family of widespread and diverse endogenous noncoding RNAs (ncRNAs) that may regulate gene expression in mammals. At present, above 30000 circRNAs have already been found, with their unique structures to maintain stability more easily than linear RNAs. Several previous literatures stressed on the important role of circRNAs, whose expression was relatively correlated with patients’ clinical characteristics and grade, in the carcinogenesis of cancer. CircRNAs are involved in many regulatory bioprocesses of malignance, including cell cycle, tumorigenesis, invasion, metastasis, apoptosis, vascularization, through adsorbing RNA as a sponge, binding to RNA-binding protein (RBP), modulating transcription, or influencing translation. Therefore, it is inevitable to further study the interactions between circRNAs and tumors and to develop novel circRNAs as molecular markers or potential targets, which will provide promising applications in early diagnosis, therapeutic evaluation, prognosis prediction of tumors and even gene therapy for tumors.


2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Shaohan Zou ◽  
Shaojie Zhao ◽  
Jing Wang ◽  
Ruirui Dong ◽  
Ping Zou ◽  
...  

Long noncoding RNAs (lncRNAs) are a class of important regulators participating in various pathological processes. Until now, the role of lncRNAs in the occurrence and development of intrahepatic cholestasis of pregnancy (ICP) has rarely been investigated. The data from microarray screening revealed 58 upregulated and 85 downregulated lncRNAs and 47 upregulated and 71 downregulated mRNAs in ICP patients compared to healthy controls. Bioinformatics analysis revealed biological processes focused on lipid metabolism, apoptosis, cell cycle, cell differentiation, and oxidative stress. Furthermore, the expressions of three lncRNAs (ENST00000505175.1, ASO3480, and ENST00000449605.1) chosen for verification were significantly decreased and showed the diagnostic and prognostic value for ICP based on ROC analysis. This is the first study to report the specific role of lncRNAs in ICP, which may be helpful for the diagnosis and prognosis of ICP clinically.


2020 ◽  
Author(s):  
Ivan B. Filippenkov ◽  
Lyudmila V. Dergunova ◽  
Svetlana A. Limborska

2015 ◽  
Vol 36 (6) ◽  
pp. 2085-2092 ◽  
Author(s):  
Yangang Wang ◽  
Donghua Xu ◽  
Bin Wang ◽  
Xu Hou

MicroRNAs (miRNAs) are a class of noncoding RNAs that mainly negatively regulate gene expression. miRNAs have important roles in many diseases, including inflammatory diseases. Gout is a common arthritis caused by deposition of monosodium urate crystals within joints. Recent studies suggested that miRNAs may be involved in the development of inflammatory arthritis, including acute gouty arthritis. In the present review, we systemically discuss relevant publications in order to provide a better understanding on the possible role of miRNAs in gout. miRNAs may act as regulators of gout pathogenesis via several pathways. Targeting miRNAs may be a promisingstrategy in the treatment of gout.


2021 ◽  
Vol 22 (9) ◽  
pp. 4697
Author(s):  
Alessio Ardizzone ◽  
Giovanna Calabrese ◽  
Michela Campolo ◽  
Alessia Filippone ◽  
Dario Giuffrida ◽  
...  

Cancer is a multifactorial disease that affects millions of people every year and is one of the most common causes of death in the world. The high mortality rate is very often linked to late diagnosis; in fact, nowadays there are a lack of efficient and specific markers for the early diagnosis and prognosis of cancer. In recent years, the discovery of new diagnostic markers, including microRNAs (miRNAs), has been an important turning point for cancer research. miRNAs are small, endogenous, non-coding RNAs that regulate gene expression. Compelling evidence has showed that many miRNAs are aberrantly expressed in human carcinomas and can act with either tumor-promoting or tumor-suppressing functions. miR-19a is one of the most investigated miRNAs, whose dysregulated expression is involved in different types of tumors and has been potentially associated with the prognosis of cancer patients. The aim of this review is to investigate the role of miR-19a in cancer, highlighting its involvement in cell proliferation, cell growth, cell death, tissue invasion and migration, as well as in angiogenesis. On these bases, miR-19a could prove to be truly useful as a potential diagnostic, prognostic, and therapeutic marker.


2017 ◽  
Vol 12 (1) ◽  
pp. 223-227 ◽  
Author(s):  
Jia Li ◽  
Wenhuan Gong ◽  
Wenfang Zhu ◽  
Xinyu Shao ◽  
Chunxia Zhang

AbstractLung cancer causes the highest incidence and mortality rates of cancer disease worldwide. Despite obvious advances in lung cancer research, a better understanding of the disease is urgently needed to improve early detection and correct diagnoses. Exosomes are released from cancer cells and modulate cell-cell communication. Exosomes transfer a wide variety of molecules including microRNAs. MicroRNAs (miRNAs) are single-stranded, small noncoding RNAs that regulate gene expression. Accumulating evidence indicates that miRNA expression patterns represent the status of physiology and disease. The focus of this review is to provide an update on the progress of miRNAs of cancer-derived exosome as potential biomarkers for lung cancer.


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