scholarly journals The Key Lnc (RNA)s in Cardiac and Skeletal Muscle Development, Regeneration, and Disease

2021 ◽  
Vol 8 (8) ◽  
pp. 84
Author(s):  
Amanda Pinheiro ◽  
Francisco J. Naya

Non-coding RNAs (ncRNAs) play a key role in the regulation of transcriptional and epigenetic activity in mammalian cells. Comprehensive analysis of these ncRNAs has revealed sophisticated gene regulatory mechanisms which finely tune the proper gene output required for cellular homeostasis, proliferation, and differentiation. However, this elaborate circuitry has also made it vulnerable to perturbations that often result in disease. Among the many types of ncRNAs, long non-coding RNAs (lncRNAs) appear to have the most diverse mechanisms of action including competitive binding to miRNA targets, direct binding to mRNA, interactions with transcription factors, and facilitation of epigenetic modifications. Moreover, many lncRNAs display tissue-specific expression patterns suggesting an important regulatory role in organogenesis, yet the molecular mechanisms through which these molecules regulate cardiac and skeletal muscle development remains surprisingly limited. Given the structural and metabolic similarities of cardiac and skeletal muscle, it is likely that several lncRNAs expressed in both of these tissues have conserved functions in establishing the striated muscle phenotype. As many aspects of regeneration recapitulate development, understanding the role lncRNAs play in these processes may provide novel insights to improve regenerative therapeutic interventions in cardiac and skeletal muscle diseases. This review highlights key lncRNAs that function as regulators of development, regeneration, and disease in cardiac and skeletal muscle. Finally, we highlight lncRNAs encoded by imprinted genes in striated muscle and the contributions of these loci on the regulation of gene expression.

2018 ◽  
Vol 96 (suppl_2) ◽  
pp. 272-273
Author(s):  
B A Wolfer ◽  
K R Daza ◽  
D Velez-Irizarry ◽  
N E Raney ◽  
V D Rilington ◽  
...  

2015 ◽  
Vol 2015 ◽  
pp. 1-17 ◽  
Author(s):  
Mao Nie ◽  
Zhong-Liang Deng ◽  
Jianming Liu ◽  
Da-Zhi Wang

A healthy and independent life requires skeletal muscles to maintain optimal function throughout the lifespan, which is in turn dependent on efficient activation of processes that regulate muscle development, homeostasis, and metabolism. Thus, identifying mechanisms that modulate these processes is of crucial priority. Noncoding RNAs (ncRNAs), including microRNAs (miRNAs) and long noncoding RNAs (lncRNAs), have emerged as a class of previously unrecognized transcripts whose importance in a wide range of biological processes and human disease is only starting to be appreciated. In this review, we summarize the roles of recently identified miRNAs and lncRNAs during skeletal muscle development and pathophysiology. We also discuss several molecular mechanisms of these noncoding RNAs. Undoubtedly, further systematic understanding of these noncoding RNAs’ functions and mechanisms will not only greatly expand our knowledge of basic skeletal muscle biology, but also significantly facilitate the development of therapies for various muscle diseases, such as muscular dystrophies, cachexia, and sarcopenia.


2020 ◽  
Vol 20 (1) ◽  
pp. 3-10
Author(s):  
Patricia Adu-Asiamah ◽  
Qiying Leng ◽  
Haidong Xu ◽  
Jiahui Zheng ◽  
Zhihui Zhao ◽  
...  

AbstractCircular RNAs (circRNAs) have been identified in the skeletal muscle of numerous species of animals. Their abundance, diversity, and their dynamic expression patterns have been revealed in various developmental stages and physiological conditions in skeletal muscles. Recently, studies have made known that circRNAs widely participate in muscle cell proliferation and differentiation. They are also involved in other life processes such as functioning as microRNA (miRNA) sponges, regulators of splicing and transcription, and modifiers of parental gene expression with emerging pieces of evidence indicating a high chance of playing a vital role in several cells and tissues, especially the muscles. Other research has emphatically stated that the growth and development of skeletal muscle are regulated by proteins as well as non-coding RNAs, which involve circRNAs. Therefore, circRNAs have been considered significant biological regulators for understanding the molecular mechanisms of myoblasts. Here, we discuss how circRNAs are abundantly expressed in muscle (myoblast) and their critical roles in growth and development.


PeerJ ◽  
2020 ◽  
Vol 8 ◽  
pp. e9957
Author(s):  
Chao Yuan ◽  
Ke Zhang ◽  
Yaojing Yue ◽  
Tingting Guo ◽  
Jianbin Liu ◽  
...  

The sheep is an economically important animal, and there is currently a major focus on improving its meat quality through breeding. There are variations in the growth regulation mechanisms of different sheep breeds, making fundamental research on skeletal muscle growth essential in understanding the regulation of (thus far) unknown genes. Skeletal muscle development is a complex biological process regulated by numerous genes and non-coding RNAs, including microRNAs (miRNAs) and long non-coding RNAs (lncRNAs). In this study, we used deep sequencing data from sheep longissimus dorsi (LD) muscles sampled at day 60, 90, and 120 of gestation, as well as at day 0 and 360 following birth, to identify and examine the lncRNA and miRNA temporal expression profiles that regulate sheep skeletal myogenesis. We stained LD muscles using histological sections to analyse the area and circumference of muscle fibers from the embryonic to postnatal development stages. Our results showed that embryonic skeletal muscle growth can be characterized by time. We obtained a total of 694 different lncRNAs and compared the differential expression between the E60 vs. E90, E90 vs. E120, E120 vs. D0, and D0 vs. D360 lncRNA and gene samples. Of the total 701 known sheep miRNAs we detected, the following showed a wide range of expression during the embryonic stage: miR-2387, miR-105, miR-767, miR-432, and miR-433. We propose that the detected lncRNA expression was time-specific during the gestational and postnatal stages. GO and KEGG analyses of the genes targeted by different miRNAs and lncRNAs revealed that these significantly enriched processes and pathways were consistent with skeletal muscle development over time across all sampled stages. We found four visual lncRNA–gene regulatory networks that can be used to explore the function of lncRNAs in sheep and may be valuable in helping improve muscle growth. This study also describes the function of several lncRNAs that interact with miRNAs to regulate myogenic differentiation.


2010 ◽  
Vol 2010 ◽  
pp. 1-10 ◽  
Author(s):  
Mirko Völkers ◽  
David Rohde ◽  
Chelain Goodman ◽  
Patrick Most

Calcium (Ca2+) signaling plays a key role in a wide range of physiological functions including control of cardiac and skeletal muscle performance. To assure a precise coordination of both temporally and spatially transduction of intracellularCa2+oscillations to downstream signaling networks and target operations,Ca2+cycling regulation in muscle tissue is conducted by a plethora of diverse molecules.Ca2+S100A1 is a member of theCa2+-binding S100 protein family and represents the most abundant S100 isoform in cardiac and skeletal muscle. Early studies revealed distinct expression patterns of S100A1 in healthy and diseased cardiac tissue from animal models and humans. Further elaborate investigations uncovered S100A1 protein as a basic requirement for striated muscleCa2+handling integrity. S100A1 is a critical regulator of cardiomyocyteCa2+cycling and contractile performance. S100A1-mediated inotropy unfolds independent and on top ofβAR-stimulated contractility with unchangedβAR downstream signaling. S100A1 has further been detected at different sites within the cardiac sarcomere indicating potential roles in myofilament function. More recently, a study reported a mitochondrial location of S100A1 in cardiomyocytes. Additionally, normalizing the level of S100A1 protein by means of viral cardiac gene transfer in animal heart failure models resulted in a disrupted progression towards cardiac failure and enhanced survival. This brief review is confined to the physiological and pathophysiological relevance of S100A1 in cardiac and skeletal muscleCa2+handling with a particular focus on its potential as a molecular target for future therapeutic interventions.


2020 ◽  
Vol 40 (6) ◽  
Author(s):  
Sifan Xu ◽  
Yang Chang ◽  
Guanxian Wu ◽  
Wanting Zhang ◽  
Chaolai Man

Abstract miR-155 has multiple functions in many physiological and pathological processes. However, little is known about the expression characteristics of avian miR-155. In the present study, partial pri-miR-155 sequences were cloned from AA+ broiler, Sanhuang broiler and Hy-Line Brown layer, respectively. Stem–loop qRT-PCR was performed to detect the miR-155-5p spatiotemporal expression profiles of each chicken breed, and the target genes of miR-155-5p were predicted in Gene Oncology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways. The results showed that the partial pri-miR-155 sequences of different breeds of chicken were high conserved. The expression patterns of miR-155-5p between broiler and layer were basically similar, and miR-155-5p was expressed highly in immune related tissues (spleen, thymus and bursa). In the same old chicken (14 days old), miR-155-5p expression activity of fat tissue all had higher level in the three chicken breeds, but the expression activities in skeletal muscle of broilers were significantly lower than that of layer (P<0.05). In different development stages of Hy-Line Brown layer, miR-155-5p expression activities in skeletal muscle of 14-day-old and 10-month-old layers were significantly lower than that of 24-month-old layer (P<0.05). Fat related target genes (ACOX1, ACOT7, FADS1, SCD and HSD17B12) and skeletal muscle related target genes (CCNT2, DMD, CFL2, MAPK14, FLNB, ZBTB18 and CDK5) of miR-155-5p were predicted, respectively. The results indicate that miR-155-5p may be an important factor inhibiting the fat deposition and skeletal muscle development in chicken.


BMC Genomics ◽  
2017 ◽  
Vol 18 (1) ◽  
Author(s):  
Séverine Lamon ◽  
Evelyn Zacharewicz ◽  
Lauren C. Butchart ◽  
Liliana Orellana ◽  
Jasmine Mikovic ◽  
...  

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