Evidence map›Paper›PMID 22697359›Full record

ArticleAnalytical chemistry2012

Ultrasensitive detection of cancer biomarkers in the clinic by use of a nanostructured microfluidic array.

Ruchika Malhotra, Vyomesh Patel, Bhaskara V Chikkaveeraiah, Bernard S Munge, Sok Ching Cheong, Rosnah B Zain, Mannil T Abraham, Dipak K Dey, J Silvio Gutkind, James F Rusling

Abstract read
In one paragraph

Article in Analytical chemistry, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 65 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
65citing papers in PubMed, 1 pooled it
8.9field-weighted citation impact, top 1% 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

65 citing papers in PubMed, 1 synthesis or guideline pooled it, 203 citations in OpenAlex.

  1. Pooled it
  2. Redefining oropharyngeal cancer in the HPV era: integrating precision medicine and immunotherapeutic frontiers.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2026
    Review
  3. Review
  4. Review
  5. Review
  6. Article
  7. Sandwich-like voltametric immunosensing of interleukin-8 based on β-cyclodextrin/carbon nanotubes and methylthionine chloride@UIO-66 framework.Analytical sciences : the international journal of the Japan Society for Analytical Chemistry · 2024
    Article
  8. Review
  9. Review
  10. Review
  11. MoSDiagnostics (Basel, Switzerland) · 2023
    Article
  12. Advanced materials and technologies for oral diseases.Science and technology of advanced materials · 2023
    Review
  13. Article
  14. Review
  15. Review
  16. Review
  17. Review
  18. Review
  19. Review
  20. Article

5 more citing papers are in PubMed but not listed here.

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

10 authors at 8 institutions in 3 countries.

Ruchika MalhotraDepartment of Chemistry, University of Connecticut, Storrs, Connecticut, United States.
Vyomesh Patel
Bhaskara V Chikkaveeraiah
Bernard S Munge
Sok Ching Cheong
Rosnah B Zain
Mannil T Abraham
Dipak K Dey
J Silvio Gutkind
James F Rusling
University of Connecticut · USCancer Research Malaysia · MYNational Institute of Dental and Craniofacial Research · USNational Institutes of Health · USOllscoil na Gaillimhe – University of Galway · IESalve Regina University · USTengku Ampuan Rahimah Hospital · MYUniversity of Malaya · MY

Funding

Oral CarcinogenesisZIADE000558 · NIDCR · NATIONAL INSTITUTE OF DENTAL & CRANIOFACIAL RESEARCH · PI GUTKIND, JORGE SILVIO · 2009 to 2015
$11.4M
ELECTROCATALYTIC STUDIES OF TOXIC POLLUTANT ACTIVATIONR01ES003154 · NIEHS · UNIVERSITY OF CONNECTICUT STORRS · PI RUSLING, JAMES F. · 1985 to 2018
$6.1M
BIOSENSOR ARRAYS BASED ON SINGLE WALL CARBON NANOTUBESR01ES013557 · NIEHS · UNIVERSITY OF CONNECTICUT STORRS · PI RUSLING, JAMES F. · 2006 to 2010
$1.6M
Protein Biosensor Arrays Based on NanomaterialsR01EB014586 · NIBIB · UNIVERSITY OF CONNECTICUT STORRS · PI RUSLING, JAMES F. · 2011 to 2014
$1.4M
Intramural NIH HHSNIBIB NIH HHS R01 EB014586NIBIB NIH HHS R01EB014586NIEHS NIH HHS R01 ES003154NIEHS NIH HHS R01 ES013557NIEHS NIH HHS R01ES013557
6 · The paper itself

Abstract

Multiplexed biomarker protein detection holds unrealized promise for clinical cancer diagnostics due to lack of suitable measurement devices and lack of rigorously validated protein panels. Here we report an ultrasensitive electrochemical microfluidic array optimized to measure a four-protein panel of biomarker proteins, and we validate the protein panel for accurate oral cancer diagnostics. Unprecedented ultralow detection into the 5-50 fg·mL(-1) range was achieved for simultaneous measurement of proteins interleukin 6 (IL-6), IL-8, vascular endothelial growth factor (VEGF), and VEGF-C in diluted serum. The immunoarray achieves high sensitivity in 50 min assays by using off-line protein capture by magnetic beads carrying 400,000 enzyme labels and ~100,000 antibodies. After capture of the proteins and washing to inhibit nonspecific binding, the beads are magnetically separated and injected into the array for selective capture by antibodies on eight nanostructured sensors. Good correlations with enzyme-linked immunosorbent assays (ELISA) for protein determinations in conditioned cancer cell media confirmed the accuracy of this approach. Normalized means of the four protein levels in 78 oral cancer patient serum samples and 49 controls gave clinical sensitivity of 89% and specificity of 98% for oral cancer detection, demonstrating high diagnostic utility. The low-cost, easily fabricated immunoarray provides a rapid serum test for diagnosis and personalized therapy of oral cancer. The device is readily adaptable to clinical diagnostics of other cancers.

Indexed as

AnimalsBiomarkers, TumorBlood Chemical AnalysisCase-Control StudiesCattleCell HypoxiaHumansImmunoassayMicrofluidic Analytical TechniquesMouth NeoplasmsNanotechnologyNeoplasm ProteinsBiomarkers, TumorNeoplasm Proteins

Identifiers

PMID22697359
PMCPMC3418660
OpenAlexW2139715508

What OpenQuestion holds

Textmetadata
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.