Evidence map›Paper›PMID 30958914›Full record

ArticleThe Prostate2019

Optimizing live-animal bioluminescence imaging prediction of tumor burden in human prostate cancer xenograft models in SCID-NSG mice.

Sangyub Kim, Yong Zhang, Suni Tang, Chongtao Qin, Deepkamal Karelia, Arati Sharma, Cheng Jiang, Junxuan Lu

Open access · greenAbstract read
In one paragraph

Article in The Prostate, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.4field-weighted citation impact, top 39% 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

4 citing papers in PubMed, 7 citations in OpenAlex.

  1. Article
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  4. 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

8 authors at 4 institutions in 2 countries.

Sangyub KimDepartment of Pharmacology, Penn State College of Medicine, Hershey, Pennsylvania.
Yong ZhangSchool of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, Texas.
Suni TangSchool of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, Texas.
Chongtao QinDepartment of Pharmacology, Penn State College of Medicine, Hershey, Pennsylvania.
Deepkamal KareliaDepartment of Pharmacology, Penn State College of Medicine, Hershey, Pennsylvania.
Arati SharmaDepartment of Pharmacology, Penn State College of Medicine, Hershey, Pennsylvania.
Cheng JiangDepartment of Pharmacology, Penn State College of Medicine, Hershey, Pennsylvania.
Junxuan LuDepartment of Pharmacology, Penn State College of Medicine, Hershey, Pennsylvania.ORCID 0000-0002-2354-7186
Penn State Milton S. Hershey Medical Center · USPennsylvania State University · USTexas Tech University · USFujian University of Traditional Chinese Medicine · CN

Funding

Mechanisms of prostate cancer prevention by Korean AngelicaR01AT007395 · NCCIH · TEXAS TECH UNIVERSITY HEALTH SCIS CENTER · PI LU, JUNXUAN · 2012 to 2016
$2.2M
PREVENTION OF PROSTATE CARCINOGENESIS BY NEXT-GENERATION SELENIUMR01CA172169 · NCI · TEXAS TECH UNIVERSITY HEALTH SCIS CENTER · PI LU, JUNXUAN · 2013 to 2018
$1.6M
Translational development studies of a novel combination therapy for castration-resistant prostate cancerR21CA218774 · NCI · PENNSYLVANIA STATE UNIV HERSHEY MED CTR · PI DENG, YIBIN, LU, JUNXUAN · 2018 to 2019
$377k
NCCIH NIH HHS R01 AT007395NCCIH NIH HHS R01AT007395NCI NIH HHS R01 CA172169NCI NIH HHS R21 CA218774
6 · The paper itself

Abstract

backgroundNoninvasive live-animal longitudinal monitoring of xenograft tumor growth and metastasis by bioluminescent imaging (BLI) has been widely reported in cancer biology and preclinical therapy literature, mainly in athymic nude mice. Our own experience at calibrating BLI readout with tumor weight/volume in human prostate cancer xenograft models in haired, SCID-NSG mice through intraprostatic (orthotopic) and subcutaneous (SC) inoculations revealed either nonexistent or poor correlation (coefficient of determination, R

methodsAfter ruling out promoter-luciferase (luc) specificity and luc gene loss in the cell inoculum with LNCaP-AR-luc cells expressing an androgen receptor (AR) and tagged with AR-responsive probasin promoter-luc gene, we evaluated different routes of d-luciferin administration, imaging time during the day, charge-coupled device camera image acquisition settings, and hair removal methods to improve the imaging protocol. For most imaging sessions, BLI was carried out within the same day of tumor volume measurement. After necropsy, histological and immunohistochemical (IHC) analyses were performed on the tumors to evaluate necrosis and expression of luciferase and AR, respectively.

resultsInjection of d-luciferin by SC route, robust image-capture setting (30 000 counts and autoexposure), imaging in the morning and thorough hair removal resulted in a substantial improvement of R

conclusionsOur body of work highlighted a framework to validate imaging protocols to ensure the acquisition of interpretable BLI data as an indicator of xenograft tumor burden. The vast tissue heterogeneity in prostate tumor xenografts and variable luciferase expression constrained this technology from achieving a high correlation.

Indexed as

Disease Models, AnimalAnimalsBreast NeoplasmsCell Line, TumorFirefly LuciferinHeterograftsHumansImmunohistochemistryLuminescent MeasurementsMaleMiceMice, SCIDNeoplasm TransplantationPredictive Value of TestsProstatic NeoplasmsTumor BurdenFirefly Luciferinbioluminescenceheterogeneous expression of luciferaseIVIS instrumental settingnecrosisprostate cancer

Identifiers

PMID30958914
PMCPMC6668996
OpenAlexW2936900010

What OpenQuestion holds

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LicenceTDM
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.