Abstract

Alternative splicing of pre-mRNA is a key mechanism for increasing the complexity of proteins in humans, causing a diversity of expression of transcriptomes and proteomes in a tissue-specific manner. Alternative splicing is regulated by a variety of splicing factors. However, the changes and errors of splicing regulation caused by splicing factors are strongly related to many diseases, something which represents one of this study’s main interests. Further understanding of alternative splicing regulation mediated by cellular factors is also a prospective choice to develop specific drugs for targeting the dynamic RNA splicing process. In this review, we firstly concluded the basic principle of alternative splicing. Afterwards, we showed how splicing isoforms affect physiological activities through specific disease examples. Finally, the available treatment methods relative to adjusting splicing activities have been summarized.

Highlights

  • Another approach approved by the FDA is antisense oligonucleotide (ASO), which is based on technology used to modify RNA splicing with complementary sequences

  • This review describes thatthat alternative splicing is a complex physiological process inteThis review describes alternative splicing is a complex physiological process grating many regulatory factors

  • Correct alternative splicing depends on the approcis-acting elements, every accurate step of step spliceosome assembly, specific specific

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Summary

Introduction

Alternative splicing is an essential process in post-transcriptional mRNA processing, and produces various mature mRNAs with different structures and functions. In this process, exons are taken together in different combinations and introns are removed. Recent data indicate that each transcript of protein-coding genes contain 11 exons and produce 5.4 mRNAs on average [1]. TTN which encodes muscle protein titin and contains 364 coding-exons and 4039 different splicing events which have been identified by RNA-sequencing [3]. Most genes generate at least two transcript variants. The alternative spliced mRNAs are further translated into many protein variants which differ in function and structure.

Schematic
Function
Essen ial Structures and Elements for Alternative
Tissue Specificity of Alternative Splicing
The Relationship between Alternative Splicing and Neurological Diseases
Alternative
Graphical ofofassembly ofofalternative splicing factors
Therapeutic
Therapeutic Based on Modulating Alternative Splicing
Findings
Conclusions
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