Evidence map›Paper›PMID 28447987›Full record

ArticleJournal of visualized experiments : JoVE2017

Live Cell Imaging and 3D Analysis of Angiotensin Receptor Type 1a Trafficking in Transfected Human Embryonic Kidney Cells Using Confocal Microscopy.

Parnika Kadam, Ryan McAllister, Jeffrey S Urbach, Kathryn Sandberg, Susette C Mueller

Abstract readVideo-Audio Media
In one paragraph

Article in Journal of visualized experiments : JoVE, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.1field-weighted citation impact, top 51% of its field
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

2 citing papers in PubMed, 2 citations in OpenAlex.

  1. Challenges and limitations for live cell imaging in extreme cold.Methods and applications in fluorescence · 2026
    Article
  2. 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 at 2 institutions in 1 country.

Parnika KadamDepartment of Biochemistry, Georgetown University Medical Center; Department of Medicine, Georgetown University Medical Center.
Ryan McAllisterDepartment of Physics, Georgetown University Medical Center.
Jeffrey S UrbachDepartment of Physics, Georgetown University Medical Center.
Kathryn SandbergDepartment of Biochemistry, Georgetown University Medical Center; Department of Medicine, Georgetown University Medical Center.
Susette C MuellerDepartment of Oncology, Georgetown University Medical Center; muellers@georgetown.edu.
Georgetown University Medical Center · USGeorgetown University · US

Funding

Tissue Culture Shared ResourceP30CA051008 · NCI · GEORGETOWN UNIVERSITY · PI Louis M Weiner · 1990 to 2026
$71.5M
Angiotensin Receptor Regulation By Upstream Short Open Reading FramesR01HL121456 · NHLBI · GEORGETOWN UNIVERSITY · PI SAMSON, WILLIS K., SANDBERG, KATHRYN L · 2014 to 2017
$3.1M
Aging impairments in angiotensin type 1 receptor actionsR21AG049450 · NIA · GEORGETOWN UNIVERSITY · PI SANDBERG, KATHRYN L · 2015 to 2016
$428k
NCI NIH HHS P30 CA051008NHLBI NIH HHS R01 HL121456NIA NIH HHS R21 AG049450
6 · The paper itself

Abstract

Live-cell imaging is used to simultaneously capture time-lapse images of angiotensin type 1a receptors (AT1aR) and intracellular compartments in transfected human embryonic kidney-293 (HEK) cells following stimulation with angiotensin II (Ang II). HEK cells are transiently transfected with plasmid DNA containing AT1aR tagged with enhanced green fluorescent protein (EGFP). Lysosomes are identified with a red fluorescent dye. Live-cell images are captured on a laser scanning confocal microscope after Ang II stimulation and analyzed by software in three dimensions (3D, voxels) over time. Live-cell imaging enables investigations into receptor trafficking and avoids confounds associated with fixation, and in particular, the loss or artefactual displacement of EGFP-tagged membrane receptors. Thus, as individual cells are tracked through time, the subcellular localization of receptors can be imaged and measured. Images must be acquired sufficiently rapidly to capture rapid vesicle movement. Yet, at faster imaging speeds, the number of photons collected is reduced. Compromises must also be made in the selection of imaging parameters like voxel size in order to gain imaging speed. Significant applications of live-cell imaging are to study protein trafficking, migration, proliferation, cell cycle, apoptosis, autophagy and protein-protein interaction and dynamics, to name but a few.

Indexed as

Imaging, Three-DimensionalMicroscopy, ConfocalCell SurvivalGreen Fluorescent ProteinsHEK293 CellsHumansLysosomesProtein TransportReceptor, Angiotensin, Type 1enhanced green fluorescent proteinGreen Fluorescent ProteinsReceptor, Angiotensin, Type 1

Identifiers

PMID28447987
PMCPMC5564435
OpenAlexW2599281692

What OpenQuestion holds

Textmetadata
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.