Evidence map›Paper›PMID 35854233›Full record

SynthesisBMC cancer2022

Integration of metabolites from meta-analysis with transcriptome reveals enhanced SPHK1 in PDAC with a background of pancreatitis.

Vijayasarathy Ketavarapu, Vishnubhotla Ravikanth, Mitnala Sasikala, G V Rao, Ch Venkataramana Devi, Prabhakar Sripadi, Murali Satyanarayana Bethu, Ramars Amanchy, H V V Murthy, Stephen J Pandol and 1 more

Erratum issuedOpen access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in BMC cancer, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
1.5field-weighted citation impact, top 18% 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.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

11 authors at 5 institutions in 2 countries.

Vijayasarathy KetavarapuAsian Healthcare Foundation, Asian Institute of Gastroenterology, Mindspace Rd, Gachibowli, Hyderabad, Telangana, 500032, India.
Vishnubhotla RavikanthAsian Healthcare Foundation, Asian Institute of Gastroenterology, Mindspace Rd, Gachibowli, Hyderabad, Telangana, 500032, India.
Mitnala SasikalaAsian Healthcare Foundation, Asian Institute of Gastroenterology, Mindspace Rd, Gachibowli, Hyderabad, Telangana, 500032, India. drsasikala.mitnala@aighospitals.com.
G V RaoAIG Hospitals, Mindspace Rd, Gachibowli, Hyderabad, Telangana, 500032, India.
Ch Venkataramana DeviDepartment of Biochemistry, University College of Science, Osmania University, Hyderabad, 500 007, India.
Prabhakar SripadiCentre for Mass Spectrometry, Analytical & Structural Chemistry Department, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad, 500 007, India.
Murali Satyanarayana BethuDivision of Applied Biology, CSIR-IICT (Indian Institute of Chemical Technology), Ministry of Science and Technology (GOI), Hyderabad, Telangana, 500007, India.
Ramars AmanchyDivision of Applied Biology, CSIR-IICT (Indian Institute of Chemical Technology), Ministry of Science and Technology (GOI), Hyderabad, Telangana, 500007, India.
H V V MurthyAsian Healthcare Foundation, Asian Institute of Gastroenterology, Mindspace Rd, Gachibowli, Hyderabad, Telangana, 500032, India.
Stephen J PandolDepartment of Medicine, Division of Digestive and Liver Diseases, Cedars-Sinai Medical Center, Los Angeles, CA, USA.
D Nageshwar ReddyAIG Hospitals, Mindspace Rd, Gachibowli, Hyderabad, Telangana, 500032, India.
Asian Institute of Gastroenterology · INIndian Institute of Chemical Technology · INCedars-Sinai Medical Center · USOsmania University · INRoswell Park Comprehensive Cancer Center · US

Funding

Project 3: Role of the pancreatic fibroinflammatory microenvironment in obesity-promoted pancreatic cancerP01CA236585 · NCI · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI EIBL, GUIDO ERWIN MICHAEL · 2020 to 2024
$5.6M
Molecular Mechanisms of Stellate Cell Activation in Liver FibrosisI01BX001991 · VA · VA GREATER LOS ANGELES HEALTHCARE SYSTEM · PI HIDEKAZU TSUKAMOTO · 2014 to 2026
–
NCI NIH HHS P01 CA236585
6 · The paper itself

Abstract

backgroundPathophysiology of transformation of inflammatory lesions in chronic pancreatitis (CP) to pancreatic ductal adenocarcinoma (PDAC) is not clear.

methodsWe conducted a systematic review, meta-analysis of circulating metabolites, integrated this data with transcriptome analysis of human pancreatic tissues and validated using immunohistochemistry. Our aim was to establish biomarker signatures for early malignant transformation in patients with underlying CP and identify therapeutic targets.

resultsAnalysis of 19 studies revealed AUC of 0.86 (95% CI 0.81-0.91, P < 0.0001) for all the altered metabolites (n = 88). Among them, lipids showed higher differentiating efficacy between PDAC and CP; P-value (< 0.0001). Pathway enrichment analysis identified sphingomyelin metabolism (impact value-0.29, FDR of 0.45) and TCA cycle (impact value-0.18, FDR of 0.06) to be prominent pathways in differentiating PDAC from CP. Mapping circulating metabolites to corresponding genes revealed 517 altered genes. Integration of these genes with transcriptome data of CP and PDAC with a background of CP (PDAC-CP) identified three upregulated genes; PIGC, PPIB, PKM and three downregulated genes; AZGP1, EGLN1, GNMT. Comparison of CP to PDAC-CP and PDAC-CP to PDAC identified upregulation of SPHK1, a known oncogene.

conclusionsOur analysis suggests plausible role for SPHK1 in development of pancreatic adenocarcinoma in long standing CP patients. SPHK1 could be further explored as diagnostic and potential therapeutic target.

Indexed as

AdenocarcinomaCarcinoma, Pancreatic DuctalPancreatic NeoplasmsPancreatitis, ChronicHumansTranscriptomeChronic pancreatitisMetabolomic biomarkersPancreatic ductal adenocarcinomaPDAC with background of CPSPHK1Transcriptomics

Identifiers

PMID35854233
PMCPMC9295503
OpenAlexW4285797629

What OpenQuestion holds

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LicenceCC BY
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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.