Evidence map›Paper›PMID 30544938›Full record

ArticleMolecules (Basel, Switzerland)2018

Simultaneous Quantitation of Isoprenoid Pyrophosphates in Plasma and Cancer Cells Using LC-MS/MS.

Yashpal S Chhonker, Staci L Haney, Veenu Bala, Sarah A Holstein, Daryl J Murry

Open access · goldAbstract read
In one paragraph

Article in Molecules (Basel, Switzerland), 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.2field-weighted citation impact, top 24% 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

18 citing papers in PubMed, 31 citations in OpenAlex.

  1. Article
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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 2 countries.

Yashpal S ChhonkerDepartment of Pharmacy Practice, University of Nebraska Medical Center, Omaha, NE 68198, USA. y.chhonker@unmc.edu.
Staci L HaneyDepartment of Internal Medicine, University of Nebraska Medical Center, Omaha, NE 68198, USA. staci.haney@unmc.edu.
Veenu BalaDepartment of Pharmaceutical Sciences, Mohanlal Sukhadia University, Udaipur, Rajasthan 313001, India. veenu2bala@gmail.com.
Sarah A HolsteinDepartment of Internal Medicine, University of Nebraska Medical Center, Omaha, NE 68198, USA. sarah.holstein@unmc.edu.ORCID 0000-0002-9342-5635
Daryl J MurryDepartment of Pharmacy Practice, University of Nebraska Medical Center, Omaha, NE 68198, USA. dj.murry@unmc.edu.ORCID 0000-0002-4169-5027
University of Nebraska Medical Center · USMohanlal Sukhadia University · IN

Funding

UNMC/EPPLEY CANCER CENTER SUPPORT GRANTP30CA036727 · NCI · UNIVERSITY OF NEBRASKA MEDICAL CENTER · PI James Eudy · 1985 to 2026
$55.0M
National Cancer Institute P30 CA036727National Institutes of Health P50CA127297National Institutes of Health R01CA-172070
6 · The paper itself

Abstract

Isoprenoids (IsoP) are an important class of molecules involved in many different cellular processes including cholesterol synthesis. We have developed a sensitive and specific LC-MS/MS method for the quantitation of three key IsoPs in bio-matrices, geranyl pyrophosphate (GPP), farnesyl pyrophosphate (FPP), and geranylgeranyl pyrophosphate (GGPP). LC-MS/MS analysis was performed using a Nexera UPLC System connected to a LCMS-8060 (Shimadzu Scientific Instruments, Columbia, MD) with a dual ion source. The electrospray ionization source was operated in the negative MRM mode. The chromatographic separation and detection of analytes was achieved on a reversed phase ACCQ-TAG Ultra C18 (1.7 µm, 100 mm × 2.1 mm I.D.) column. The mobile phase consisted of (1) a 10 mM ammonium carbonate with 0.1% ammonium hydroxide in water, and (2) a 0.1% ammonium hydroxide in acetonitrile/methanol (75/25). The flow rate was set to 0.25 mL/min in a gradient condition. The limit of quantification was 0.04 ng/mL for all analytes with a correlation coefficient (r2) of 0.998 or better and a total run time of 12 min. The inter- and intra-day accuracy (85⁻115%) precision (<15%), and recovery (40⁻90%) values met the acceptance criteria. The validated method was successfully applied to quantitate basal concentrations of GPP, FPP and GGPP in human plasma and in cultured cancer cell lines. Our LC-MS/MS method may be used for IsoP quantification in different bio-fluids and to further investigate the role of these compounds in various physiological processes.

Indexed as

CalibrationCell Line, TumorChromatography, LiquidHumansPancreatic NeoplasmsPolyisoprenyl PhosphatesReproducibility of ResultsSensitivity and SpecificitySesquiterpenesTandem Mass Spectrometryfarnesyl pyrophosphategeranylgeranyl pyrophosphategeranyl pyrophosphatePolyisoprenyl PhosphatesSesquiterpenesfarnesyl pyrophosphategeranylgeranyl pyrophosphategeranyl pyrophosphateLC-MS/MS

Identifiers

PMID30544938
PMCPMC6321327
OpenAlexW2904965237

What Socratic holds

Textmetadata
LicenceCC BY
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 Socratic graph.