scholarly journals DNA Methylation and Non-Coding RNAs during Tissue-Injury Associated Pain

2022 ◽  
Vol 23 (2) ◽  
pp. 752
Author(s):  
Jahanzaib Irfan ◽  
Muhammad Rizki Febrianto ◽  
Anju Sharma ◽  
Thomas Rose ◽  
Yasamin Mahmudzade ◽  
...  

While about half of the population experience persistent pain associated with tissue damages during their lifetime, current symptom-based approaches often fail to reduce such pain to a satisfactory level. To provide better patient care, mechanism-based analgesic approaches must be developed, which necessitates a comprehensive understanding of the nociceptive mechanism leading to tissue injury-associated persistent pain. Epigenetic events leading the altered transcription in the nervous system are pivotal in the maintenance of pain in tissue injury. However, the mechanisms through which those events contribute to the persistence of pain are not fully understood. This review provides a summary and critical evaluation of two epigenetic mechanisms, DNA methylation and non-coding RNA expression, on transcriptional modulation in nociceptive pathways during the development of tissue injury-associated pain. We assess the pre-clinical data and their translational implication and evaluate the potential of controlling DNA methylation and non-coding RNA expression as novel analgesic approaches and/or biomarkers of persistent pain.

2017 ◽  
Author(s):  
Annamaria Morotti ◽  
Irene Forno ◽  
Valentina Andre ◽  
Andrea Terrasi ◽  
Chiara Verdelli ◽  
...  

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Saara Marttila ◽  
Leena E. Viiri ◽  
Pashupati P. Mishra ◽  
Brigitte Kühnel ◽  
Pamela R. Matias-Garcia ◽  
...  

Abstract Background Non-coding RNA 886 (nc886) is coded from a maternally inherited metastable epiallele. We set out to investigate the determinants and dynamics of the methylation pattern at the nc886 epiallele and how this methylation status associates with nc886 RNA expression. Furthermore, we investigated the associations between the nc886 methylation status or the levels of nc886 RNAs and metabolic traits in the YFS and KORA cohorts. The association between nc886 epiallele methylation and RNA expression was also validated in induced pluripotent stem cell (iPSC) lines. Results We confirm that the methylation status of the nc886 epiallele is mostly binomial, with individuals displaying either a non- or hemi-methylated status, but we also describe intermediately and close to fully methylated individuals. We show that an individual’s methylation status is associated with the mother’s age and socioeconomic status, but not with the individual’s own genetics. Once established, the methylation status of the nc886 epiallele remains stable for at least 25 years. This methylation status is strongly associated with the levels of nc886 non-coding RNAs in serum, blood, and iPSC lines. In addition, nc886 methylation status associates with glucose and insulin levels during adolescence but not with the indicators of glucose metabolism or the incidence of type 2 diabetes in adulthood. However, the nc886-3p RNA levels also associate with glucose metabolism in adulthood. Conclusions These results indicate that nc886 metastable epiallele methylation is tuned by the periconceptional conditions and it associates with glucose metabolism through the expression of the ncRNAs coded in the epiallele region.


2016 ◽  
Vol 35 (6) ◽  
pp. 3185-3197 ◽  
Author(s):  
CHUNLIANG SHANG ◽  
WENHUI ZHU ◽  
TIANYU LIU ◽  
WEI WANG ◽  
GUANGXIN HUANG ◽  
...  

Nutrients ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 332
Author(s):  
Krystyna Fabianowska-Majewska ◽  
Agnieszka Kaufman-Szymczyk ◽  
Aldona Szymanska-Kolba ◽  
Jagoda Jakubik ◽  
Grzegorz Majewski ◽  
...  

One of the most systematically studied bioactive nutraceuticals for its benefits in the management of various diseases is the turmeric-derived compounds: curcumin. Turmeric obtained from the rhizome of a perennial herb Curcuma longa L. is a condiment commonly used in our diet. Curcumin is well known for its potential role in inhibiting cancer by targeting epigenetic machinery, with DNA methylation at the forefront. The dynamic DNA methylation processes serve as an adaptive mechanism to a wide variety of environmental factors, including diet. Every healthy tissue has a precise DNA methylation pattern that changes during cancer development, forming a cancer-specific design. Hypermethylation of tumor suppressor genes, global DNA demethylation, and promoter hypomethylation of oncogenes and prometastatic genes are hallmarks of nearly all types of cancer, including breast cancer. Curcumin has been shown to modulate epigenetic events that are dysregulated in cancer cells and possess the potential to prevent cancer or enhance the effects of conventional anti-cancer therapy. Although mechanisms underlying curcumin-mediated changes in the epigenome remain to be fully elucidated, the mode of action targeting both hypermethylated and hypomethylated genes in cancer is promising for cancer chemoprevention. This review provides a comprehensive discussion of potential epigenetic mechanisms of curcumin in reversing altered patterns of DNA methylation in breast cancer that is the most commonly diagnosed cancer and the leading cause of cancer death among females worldwide. Insight into the other bioactive components of turmeric rhizome as potential epigenetic modifiers has been indicated as well.


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