Evidence map›Paper›PMID 30555786›Full record

ArticlePhotoacoustics2019

In vivo tracking of orally-administered particles within the gastrointestinal tract of murine models using multispectral optoacoustic tomography.

Neal Bhutiani, Abhilash Samykutty, Kelly M McMasters, Nejat K Egilmez, Lacey R McNally

Abstract read
In one paragraph

Article in Photoacoustics, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
–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

17 citing papers in PubMed.

  1. Assessment of Breast Tumors Using Multispectral Optoacoustic Tomography in a Surgical Setting.Journal of nuclear medicine : official publication, Society of Nuclear Medicine · 2025
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  16. Imaging Inflammation and Infection in the Gastrointestinal Tract.International journal of molecular sciences · 2019
    Review
  17. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Neal BhutianiDepartment of Surgery, University of Louisville, Louisville, KY, 40202, United States.
Abhilash SamykuttyDepartment of Cancer Biology, Wake Forest School of Medicine, Winston-Salem, North Carolina, 27101, United States.
Kelly M McMastersDepartment of Surgery, University of Louisville, Louisville, KY, 40202, United States.
Nejat K EgilmezDepartment of Microbiology and Immunology, University of Louisville, Louisville, KY, 40202, United States.
Lacey R McNallyDepartment of Cancer Biology, Wake Forest School of Medicine, Winston-Salem, North Carolina, 27101, United States.

Funding

Integrating innate and adaptive immunity in cancer therapyR01CA100656 · NCI · UNIVERSITY OF LOUISVILLE · PI EGILMEZ, NEJAT K · 2004 to 2014
$2.9M
Stroma Targeted Theranostic Nanoparticles for Pancreatic CancerR01CA212350 · NCI · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI MCNALLY, LACEY R · 2017 to 2021
$1.7M
Non-Invasive Detection of Tumor Extracellular pH using Multispectral Optoacoustic TomographyR01CA205941 · NCI · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI MCNALLY, LACEY R · 2016 to 2021
$1.7M
Theranostic Nanoparticles For Detection and Treatment of Pancreatic CancerR01EB020125 · NIBIB · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI MCNALLY, LACEY R · 2016 to 2019
$1.7M
NCI NIH HHS R01 CA100656NCI NIH HHS R01 CA205941NCI NIH HHS R01 CA212350NIBIB NIH HHS R01 EB020125
6 · The paper itself

Abstract

While particle carriers have potential to revolutionize disease treatment, using these carriers requires knowledge of spatial and temporal biodistribution. The goal of this study was to track orally administered particle uptake and trafficking through the murine gastrointestinal (GI) tract using multispectral optoacoustic tomography (MSOT). Polylactic acid (PLA) particles encapsulating AlexaFluor 680 (AF680) dye conjugated to bovine serum albumin (BSA) were orally gavaged into mice. Particle uptake and trafficking were observed using MSOT imaging with subsequent confirmation of particle uptake via fluorescent microscopy. Mice treated with PLA-AF680-BSA particles exhibited MSOT signal within the small bowel wall at 1 and 6 h, colon wall at 6, 12, and 24 h, and mesenteric lymph node 24 and 48 h. Particle localization identified using MSOT correlated with fluorescence microscopy. Despite the potential of GI tract motion artifacts, MSOT allowed for teal-time tracking of particles within the GI tract in a non-invasive and real-time manner. Future use of MSOT in conjunction with particles containing both protein-conjugated fluorophores as well as therapeutic agents could allow for non-invasive, real time tracking of particle uptake and drug delivery.

Indexed as

ColonDiagnostic imagingGastrointestinal tractMultispectral optoacoustic tomographyNanoparticle trackingOral gavage

Identifiers

PMID30555786
PMCPMC6280634

What OpenQuestion holds

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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.