Next-generation sequencing in clinical virology:Discovery of new viruses

• 作者: Bidisha Das Raghvendra Budhauliya Sibnarayan Datta Soumya Chatterjee Vanlalhmuaka Vijay Veer
• 来源期刊: 世界病毒学杂志
• 学科: 医学
• 关键词: PCR Next-generation sequencers VIRUS DISCOVERY Sequence-independent single-primer AMPLIFICATION VIRUS DISCOVERY based on CDNA-AFLP Rolling circle AMPLIFICATION METAGENOMICS
• 年，卷（期）: 2015,（3）
• 页码范围: 265-276
• 页数: 12页
• 分类号: R

摘要

Viruses are a cause of significant health problem world-wide,especially in the developing nations.Due to different anthropological activities,human populations are exposed to different viral pathogens,many of which emerge as outbreaks.In such situations,discovery of novel viruses is utmost important for deciding prevention and treatment strategies.Since last century,a number of different virus discovery methods,based on cell culture inoculation,sequence-independent PCR have been used for identification of a variety of viruses.However,the recent emergence and commercial availability of nextgeneration sequencers(NGS)has entirely changed the field of virus discovery.These massively parallel sequencing platforms can sequence a mixture of genetic materials from a very heterogeneous mix,with high sensitivity.Moreover,these platforms work in a sequenceindependent manner,making them ideal tools for virus discovery.However,for their application in clinics,sample preparation or enrichment is necessary to detect low abundance virus populations.A number of techniques have also been developed for enrichment or viral nucleic acids.In this manuscript,we review the evolution of sequencing;NGS technologies available today as well as widely used virus enrichment technologies.We also discuss the challenges associated with their applications in the clinical virus discovery.