Evidence map›Paper›PMID 7962608›Full record

ArticleJournal of clinical pathology1994

PCR in situ hybridisation detection of HPV 16 in fixed CaSki and fixed SiHa cell lines.

J J O'Leary, G Browne, M I Johnson, R J Landers, M Crowley, I Healy, J T Street, A M Pollock, F A Lewis, A Andrew

Abstract read
In one paragraph

Article in Journal of clinical pathology, 1994. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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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

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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

6 citing papers in PubMed.

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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

10 authors.

J J O'LearyNuffield Department of Pathology and Bacteriology, University of Oxford.
G Browne
M I Johnson
R J Landers
M Crowley
I Healy
J T Street
A M Pollock
F A Lewis
A Andrew

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsTo investigate the feasibility of using fixed cells with the polymerase chain reaction (PCR) in situ hybridisation and to investigate possible reasons for reaction failure.

methodsFixed SiHa and CaSki cells were used in an experimental model of PCR in situ hybridisation for the detection of low and intermediate copy number viral infection in fixed cells.

resultsPCR in situ hybridisation was able to detect one to two copies of human papillomavirus (HPV) 16 in SiHa cells, using small fragment amplicons (120 base pairs), confirming the high detection sensitivity and flexibility of the technique. Problems were encountered with localisation of PCR amplified product in CaSki cells (200-300 copies of HPV 16 per cell) owing to diffusion of product post amplification. Overall, 40% of reactions were successful, which confirms the current unreliability of the technique. Within cell preparations, about 50% of cells contained amplified product.

conclusionPCR in situ hybridisation represents the marriage of two revolutionary molecular pathological techniques. However, it is currently unreliable, with reaction failure common. Standardised, dedicated equipment is urgently required if the technique is to achieve universal acceptance. In the future, the technique may be used to detect chromosomal translocations in human tumours and to study cellular gene expression.

Indexed as

Tissue FixationBase SequenceCell LineDNA PrimersDNA, ViralHumansIn Situ HybridizationMolecular Sequence DataPapillomaviridaeParaffin EmbeddingPolymerase Chain ReactionSensitivity and SpecificityDNA PrimersDNA, Viral

Identifiers

PMID7962608
PMCPMC502179

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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.