Isoform Age - Splice Isoform Profiling Using Long-Read Technologies

Alternative splicing (AS) of RNA is a key mechanism that results in the expression of multiple transcript isoforms from single genes and leads to an increase in the complexity of both the transcriptome and proteome. Regulation of AS is critical for the correct functioning of many biological pathways...

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Main Authors: Ricardo De Paoli-Iseppi, Josie Gleeson, Michael B. Clark
Format: Article
Language:English
Published: Frontiers Media S.A. 2021-08-01
Series:Frontiers in Molecular Biosciences
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fmolb.2021.711733/full
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author Ricardo De Paoli-Iseppi
Josie Gleeson
Michael B. Clark
author_facet Ricardo De Paoli-Iseppi
Josie Gleeson
Michael B. Clark
author_sort Ricardo De Paoli-Iseppi
collection DOAJ
description Alternative splicing (AS) of RNA is a key mechanism that results in the expression of multiple transcript isoforms from single genes and leads to an increase in the complexity of both the transcriptome and proteome. Regulation of AS is critical for the correct functioning of many biological pathways, while disruption of AS can be directly pathogenic in diseases such as cancer or cause risk for complex disorders. Current short-read sequencing technologies achieve high read depth but are limited in their ability to resolve complex isoforms. In this review we examine how long-read sequencing (LRS) technologies can address this challenge by covering the entire RNA sequence in a single read and thereby distinguish isoform changes that could impact RNA regulation or protein function. Coupling LRS with technologies such as single cell sequencing, targeted sequencing and spatial transcriptomics is producing a rapidly expanding suite of technological approaches to profile alternative splicing at the isoform level with unprecedented detail. In addition, integrating LRS with genotype now allows the impact of genetic variation on isoform expression to be determined. Recent results demonstrate the potential of these techniques to elucidate the landscape of splicing, including in tissues such as the brain where AS is particularly prevalent. Finally, we also discuss how AS can impact protein function, potentially leading to novel therapeutic targets for a range of diseases.
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spelling doaj.art-997c1533eb9f40139b245e95635236a32022-12-21T23:29:49ZengFrontiers Media S.A.Frontiers in Molecular Biosciences2296-889X2021-08-01810.3389/fmolb.2021.711733711733Isoform Age - Splice Isoform Profiling Using Long-Read TechnologiesRicardo De Paoli-IseppiJosie GleesonMichael B. ClarkAlternative splicing (AS) of RNA is a key mechanism that results in the expression of multiple transcript isoforms from single genes and leads to an increase in the complexity of both the transcriptome and proteome. Regulation of AS is critical for the correct functioning of many biological pathways, while disruption of AS can be directly pathogenic in diseases such as cancer or cause risk for complex disorders. Current short-read sequencing technologies achieve high read depth but are limited in their ability to resolve complex isoforms. In this review we examine how long-read sequencing (LRS) technologies can address this challenge by covering the entire RNA sequence in a single read and thereby distinguish isoform changes that could impact RNA regulation or protein function. Coupling LRS with technologies such as single cell sequencing, targeted sequencing and spatial transcriptomics is producing a rapidly expanding suite of technological approaches to profile alternative splicing at the isoform level with unprecedented detail. In addition, integrating LRS with genotype now allows the impact of genetic variation on isoform expression to be determined. Recent results demonstrate the potential of these techniques to elucidate the landscape of splicing, including in tissues such as the brain where AS is particularly prevalent. Finally, we also discuss how AS can impact protein function, potentially leading to novel therapeutic targets for a range of diseases.https://www.frontiersin.org/articles/10.3389/fmolb.2021.711733/fullisoformlong-read sequencingPacBioOxford Nanopore Technologies nanopore sequencingsingle cell sequencingalternative splicing
spellingShingle Ricardo De Paoli-Iseppi
Josie Gleeson
Michael B. Clark
Isoform Age - Splice Isoform Profiling Using Long-Read Technologies
Frontiers in Molecular Biosciences
isoform
long-read sequencing
PacBio
Oxford Nanopore Technologies nanopore sequencing
single cell sequencing
alternative splicing
title Isoform Age - Splice Isoform Profiling Using Long-Read Technologies
title_full Isoform Age - Splice Isoform Profiling Using Long-Read Technologies
title_fullStr Isoform Age - Splice Isoform Profiling Using Long-Read Technologies
title_full_unstemmed Isoform Age - Splice Isoform Profiling Using Long-Read Technologies
title_short Isoform Age - Splice Isoform Profiling Using Long-Read Technologies
title_sort isoform age splice isoform profiling using long read technologies
topic isoform
long-read sequencing
PacBio
Oxford Nanopore Technologies nanopore sequencing
single cell sequencing
alternative splicing
url https://www.frontiersin.org/articles/10.3389/fmolb.2021.711733/full
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AT josiegleeson isoformagespliceisoformprofilingusinglongreadtechnologies
AT michaelbclark isoformagespliceisoformprofilingusinglongreadtechnologies