Evidence map›Paper›PMID 22861487›Full record

ArticleNucleic acid therapeutics2012

Dynamics and visualization of MCF7 adenocarcinoma cell death by aptamer-C1q-mediated membrane attack.

John R Stecker, Alissa A Savage, John G Bruno, Dana M García, Joseph R Koke

Open access · greenAbstract read
In one paragraph

Article in Nucleic acid therapeutics, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
0.9field-weighted citation impact, top 27% 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

12 citing papers in PubMed, 22 citations in OpenAlex.

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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.

John R SteckerTexas State University-San Marcos, Department of Biology, San Marcos, Texas, USA.
Alissa A Savage
John G Bruno
Dana M García
Joseph R Koke
Texas State University · USOperational Technologies Corporation (United States) · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study was designed to characterize binding of a DNA aptamer to breast cancer cells and to test whether that aptamer could be used to kill target cells in vitro as part of an aptamer-C1q protein conjugate by coupling to the classic complement cascade. A biotinylated DNA aptamer designated MUC1-5TR-1 was shown to decorate the plasma membranes of human breast adenocarcinoma (MCF7) cells via fluorescence confocal microscopy. Biotinylated aptamer binding successfully initiated the classical complement pathway leading to complement fixation on the target cells via a streptavidin-C1q conjugate as previously reported. Förster Resonance Energy Transfer (FRET) measurements demonstrated membrane depolarization upon aptamer binding, providing indirect evidence of membrane attack complex (MAC) formation as a result of aptamer binding. Transmission electron microscopy (TEM) and immunogold labeling confirmed that aptamer-mediated complement fixation results in MAC formation on the plasma membrane, leading to osmotic swelling and cell death. This approach may provide a much less toxic and more precisely targeted "antibody-like" treatment for cancers by coupling to the patient's innate immune system in much the same way as more expensive humanized monoclonal antibodies.

Indexed as

AdenocarcinomaAntineoplastic AgentsAptamers, NucleotideBreast NeoplasmsCell DeathCell MembraneCell ShapeComplement ActivationComplement C1qFluorescence Resonance Energy TransferFluorescent DyesHumansMCF-7 CellsMicroscopy, ConfocalMicroscopy, Electron, TransmissionStreptavidinAntineoplastic AgentsAptamers, NucleotideComplement C1qFluorescent DyesStreptavidin

Identifiers

PMID22861487
PMCPMC3426207
OpenAlexW1893263832

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.