Evidence map›Paper›PMID 27120792›Full record

ArticleOncotarget2016

Identification of lipid-phosphatidylserine (PS) as the target of unbiasedly selected cancer specific peptide-peptoid hybrid PPS1.

Tanvi J Desai, Jason E Toombs, John D Minna, Rolf A Brekken, Damith Gomika Udugamasooriya

Open access · diamondAbstract read
In one paragraph

Article in Oncotarget, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
2.3field-weighted citation impact, top 12% 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

32 citing papers in PubMed, 49 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 3 institutions in 1 country.

Tanvi J DesaiDepartment of Pharmacological and Pharmaceutical Sciences, University of Houston, Houston, TX 77204, USA.
Jason E ToombsHamon Center for Therapeutic Oncology Research, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.
John D MinnaHamon Center for Therapeutic Oncology Research, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.
Rolf A BrekkenHamon Center for Therapeutic Oncology Research, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.
Damith Gomika UdugamasooriyaDepartment of Pharmacological and Pharmaceutical Sciences, University of Houston, Houston, TX 77204, USA.
The University of Texas Southwestern Medical Center · USThe University of Texas MD Anderson Cancer Center · USUniversity of Houston · US

Funding

UNIVERSITY OF TEXAS--SPORE IN LUNG CANCERP50CA070907 · NCI · UT SOUTHWESTERN MEDICAL CENTER · PI GIBBONS, DON LYNN · 1996 to 2024
$57.4M
Lung cancer oncogenotype-selective drug target discoveryU01CA176284 · NCI · UT SOUTHWESTERN MEDICAL CENTER · PI MACMILLAN, JOHN B, MINNA, JOHN D. · 2013 to 2016
$2.8M
Phosphatidylserine Targeted Tumor Cell Lytic PeptoidsR01CA175779 · NCI · UT SOUTHWESTERN MEDICAL CENTER · PI UDUGAMASOORIYA, DAMITH GOMIKA · 2013 to 2017
$1.5M
NCI NIH HHS P50 CA070907NCI NIH HHS R01 CA175779NCI NIH HHS U01 CA176284
6 · The paper itself

Abstract

Phosphatidylserine (PS) is an anionic phospholipid maintained on the inner-leaflet of the cell membrane and is externalized in malignant cells. We previously launched a careful unbiased selection targeting biomolecules (e.g. protein, lipid or carbohydrate) distinct to cancer cells by exploiting HCC4017 lung cancer and HBEC30KT normal epithelial cells derived from the same patient, identifying HCC4017 specific peptide-peptoid hybrid PPS1. In this current study, we identified PS as the target of PPS1. We validated direct PPS1 binding to PS using ELISA-like assays, lipid dot blot and liposome based binding assays. In addition, PPS1 recognized other negatively charged and cancer specific lipids such as phosphatidic acid, phosphatidylinositol and phosphatidylglycerol. PPS1 did not bind to neutral lipids such as phosphatidylethanolamine found in cancer and phosphatidylcholine and sphingomyelin found in normal cells. Further we found that the dimeric version of PPS1 (PPS1D1) displayed strong cytotoxicity towards lung cancer cell lines that externalize PS, but not normal cells. PPS1D1 showed potent single agent anti-tumor activity and enhanced the efficacy of docetaxel in mice bearing H460 lung cancer xenografts. Since PS and anionic phospholipid externalization is common across many cancer types, PPS1 may be an alternative to overcome limitations of protein targeted agents.

Indexed as

Xenograft Model Antitumor AssaysAnimalsCell LineCell Line, TumorFemaleHumansLung NeoplasmsMembrane LipidsMice, Inbred NODMice, SCIDMolecular Targeted TherapyOligopeptidesPeptidesPeptoidsPhosphatidylserinesProtein BindingMembrane LipidsOligopeptidesPeptidesPeptoidsPhosphatidylserinesPieczenik peptide sequence 1anti-cancer agentslung cancernon-protein biomarkerspeptoidsphosphatidylserine

Identifiers

PMID27120792
PMCPMC5058709
OpenAlexW2341885432

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

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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.