Evidence map›Paper›PMID 34039613›Full record

ArticleScience advances2021

Inhalable Nanobody (PiN-21) prevents and treats SARS-CoV-2 infections in Syrian hamsters at ultra-low doses.

Sham Nambulli, Yufei Xiang, Natasha L Tilston-Lunel, Linda J Rennick, Zhe Sang, William B Klimstra, Douglas S Reed, Nicholas A Crossland, Yi Shi, W Paul Duprex

Abstract read
In one paragraph

Article in Science advances, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 117 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
117citing papers in PubMed, 2 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

117 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Mucosal immune response in biology, disease prevention and treatment.Signal transduction and targeted therapy · 2025
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57 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors.

Sham NambulliCenter for Vaccine Research, University of Pittsburgh, Pittsburgh, PA, USA.ORCID 0000-0002-9781-9703
Yufei XiangDepartment of Cell Biology, University of Pittsburgh, Pittsburgh, PA, USA.ORCID 0000-0002-6732-5649
Natasha L Tilston-LunelCenter for Vaccine Research, University of Pittsburgh, Pittsburgh, PA, USA.ORCID 0000-0002-5290-9350
Linda J RennickCenter for Vaccine Research, University of Pittsburgh, Pittsburgh, PA, USA.ORCID 0000-0001-5974-6921
Zhe SangDepartment of Cell Biology, University of Pittsburgh, Pittsburgh, PA, USA.ORCID 0000-0002-1516-2796
William B KlimstraCenter for Vaccine Research, University of Pittsburgh, Pittsburgh, PA, USA.
Douglas S ReedCenter for Vaccine Research, University of Pittsburgh, Pittsburgh, PA, USA.ORCID 0000-0003-0076-9023
Nicholas A CrosslandDepartment of Pathology and Laboratory Medicine, Boston University School of Medicine, Boston, MA, USA.ORCID 0000-0003-3873-9188
Yi ShiDepartment of Cell Biology, University of Pittsburgh, Pittsburgh, PA, USA. yi.shi@pitt.edu pduprex@pitt.edu.ORCID 0000-0002-2761-8324
W Paul DuprexCenter for Vaccine Research, University of Pittsburgh, Pittsburgh, PA, USA. yi.shi@pitt.edu pduprex@pitt.edu.ORCID 0000-0003-1716-6376

Funding

Mapping the Dynamic Interactome of Ig-fold Membrane Proteins Using Nanobody-Based ToolsR35GM137905 · NIGMS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI Yi Shi · 2020 to 2026
$2.8M
Ventana Discovery Ultra Research Autostainer: an Ex+ Core serviceS10OD026983 · OD · BOSTON UNIVERSITY MEDICAL CAMPUS · PI CROSSLAND, NICHOLAS ALEXANDER · 2019 to 2019
$207k
NIGMS NIH HHS R35 GM137905NIH HHS 1R35GM137905-01NIH HHS S10 OD026983
6 · The paper itself

Abstract

Globally, there is an urgency to develop effective, low-cost therapeutic interventions for coronavirus disease 2019 (COVID-19). We previously generated the stable and ultrapotent homotrimeric Pittsburgh inhalable Nanobody 21 (PiN-21). Using Syrian hamsters that model moderate to severe COVID-19 disease, we demonstrate the high efficacy of PiN-21 to prevent and treat SARS-CoV-2 infection. Intranasal delivery of PiN-21 at 0.6 mg/kg protects infected animals from weight loss and substantially reduces viral burdens in both lower and upper airways compared to control. Aerosol delivery of PiN-21 facilitates deposition throughout the respiratory tract and dose minimization to 0.2 mg/kg. Inhalation treatment quickly reverses animals' weight loss after infection, decreases lung viral titers by 6 logs leading to drastically mitigated lung pathology, and prevents viral pneumonia. Combined with the marked stability and low production cost, this innovative therapy may provide a convenient and cost-effective option to mitigate the ongoing pandemic.

Indexed as

COVID-19 Drug TreatmentAdministration, InhalationAerosolsAnimalsCOVID-19Disease Models, AnimalFemaleMaleMesocricetusPandemicsPneumonia, ViralSARS-CoV-2Single-Domain AntibodiesViral LoadAerosolsSingle-Domain Antibodies

Identifiers

PMID34039613
PMCPMC8153718

What OpenQuestion holds

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LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.