HiFi sequencing & immune diversity in vaccine response @PacificBiosciences
HiFi sequencing & immune diversity in vaccine response  @PacificBiosciences
Uploaded October 2025 | Updated September 2026, 40 minutes ago
At PacBio PRISM, Melissa Smith, CEO of Clareo Biosciences, explains how HiFi sequencing is essential for understanding the vast genetic diversity in human immune repertoires. This detailed characterization provides critical insights into vaccine efficacy and autoimmune disease by uncovering genetic variation previously missed by other technologies.

Dr. Smith illustrates how traditional sequencing methods have failed to capture the highly repetitive and variable nature of immune gene loci, creating a significant knowledge gap. She details how the accuracy and length of HiFi sequencing enable Clareo Biosciences to fully reconstruct these complex regions, uncovering an extensive landscape of structural variants and novel alleles. This foundational data demonstrates that individual immune gene content varies far more than previously understood, directly impacting immune function.

The presentation highlights specific applications where this detailed immunogenomic data is critical. Using examples from HIV vaccine development and the autoimmune disease myasthenia gravis, Dr. Smith shows how specific gene alleles can predict vaccine responsiveness or clarify pathogenic mechanisms. This approach offers a powerful framework for improving vaccine design for diverse populations and developing companion diagnostics to guide more effective therapies.

00:00 Introduction to Clareo Biosciences & HiFi
01:28 The challenge of variable vaccine efficacy
02:59 Why HiFi is critical for immune gene loci
06:14 GenotypAIR & CLAIRITY: Clareo’s HiFi assays
06:44 Uncovering vast structural & allelic variation
09:22 Case study: HIV vaccine & genotype-based response
14:04 The "constant" region is a black box of diversity
15:49 Profiling circulating repertoires with RNA sequencing
17:17 Linking VDJ specificity to constant region function
19:47 Case study: autoimmune disease myasthenia gravis
22:32 How allelic variation informs pathogenesis
24:13 Conclusion: the future of precision immunogenomics
25:25 Acknowledgments

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HiFi sequencing & immune diversity in vaccine response

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