What question did this study set out to answer?

This research aims to evaluate an intranasal vaccination strategy using adenoviral vectors to induce robust immune responses against SARS-CoV-2 variants.

June 29, 2026Journal of NanobiotechnologyOpen Access

A Multiepitope Intranasal Adenoviral Vaccine Induces Robust Mucosal Immunity and Protection against SARS‑CoV‑2

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Authors

AEAhmed ElkashifPurdue University West Lafayette MMMuralimanohara S. T. MuralaPurdue University West Lafayette CLCarolyn M. LeeThe Ohio State University

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Implication

Randomized trial demonstrates robust mucosal immunity in mice following intranasal vaccination, suggesting potential for broader SARS-CoV-2 protection.

Key Points

This research aims to evaluate an intranasal vaccination strategy using adenoviral vectors to induce robust immune responses against SARS-CoV-2 variants.
Utilized a heterologous prime-boost vaccination strategy with bovine and chimpanzee adenoviral vectors.
Administered constructs expressing SARS-CoV-2 proteins in BALB/c and K18-hACE2 mice.
Incorporated an autophagy-inducing peptide to enhance T-cell responses.
Achieved high neutralizing antibody titers (~3.8 log₁₀) against Omicron variants.
Demonstrated near-complete protection against BA.2.86 in K18-hACE2 mice with undetectable viral loads.
Induced robust S1-specific humoral and cellular responses.

Cite This Study

Elkashif et al. (2026) studied this question.

synapsesocial.com/papers/6a420adff91bb43ea919212b https://doi.org/10.1186/s12951-026-04727-1

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Implication

Randomized trial demonstrates robust mucosal immunity in mice following intranasal vaccination, suggesting potential for broader SARS-CoV-2 protection.

A Multiepitope Intranasal Adenoviral Vaccine Induces Robust Mucosal Immunity and Protection against SARS‑CoV‑2

Discussion

Member takes

Implication

Key Points

Cite This Study

A Multiepitope Intranasal Adenoviral Vaccine Induces Robust Mucosal Immunity and Protection against SARS‑CoV‑2

Discussion

Member takes

Implication

Key Points

Cite This Study

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