Evidence map›Paper›PMID 25594053›Full record

ArticleOncoscience2014

Genomic quantitative real-time PCR proves residual disease positivity in more than 30% samples with negative mRNA-based qRT-PCR in Chronic Myeloid Leukemia.

Ilaria S Pagani, Orietta Spinelli, Elia Mattarucchi, Cristina Pirrone, Diana Pigni, Elisabetta Amelotti, Silvia Lilliu, Chiara Boroni, Tamara Intermesoli, Ursula Giussani and 10 more

Abstract read
In one paragraph

Article in Oncoscience, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
–field-weighted citation impact
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

18 citing papers in PubMed.

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  18. gDNA Q-PCR for clinical monitoring of CML.Cell cycle (Georgetown, Tex.) · 2015
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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

20 authors.

Ilaria S PaganiDepartment of Experimental and Clinical Medicine, Insubria University, Varese, Italy ; Department of Experimental Medicine and Surgery, Tor Vergata University, Rome, Italy.
Orietta SpinelliHematology laboratory, USC Hematology, Papa Giovanni XXIII Hospital, Bergamo, Italy.
Elia MattarucchiDepartment of Experimental and Clinical Medicine, Insubria University, Varese, Italy.
Cristina PirroneDepartment of Experimental and Clinical Medicine, Insubria University, Varese, Italy.
Diana PigniDepartment of Experimental and Clinical Medicine, Insubria University, Varese, Italy.
Elisabetta AmelottiDepartment of Experimental and Clinical Medicine, Insubria University, Varese, Italy.
Silvia LilliuHematology laboratory, USC Hematology, Papa Giovanni XXIII Hospital, Bergamo, Italy.
Chiara BoroniHematology laboratory, USC Hematology, Papa Giovanni XXIII Hospital, Bergamo, Italy.
Tamara IntermesoliHematology laboratory, USC Hematology, Papa Giovanni XXIII Hospital, Bergamo, Italy.
Ursula GiussaniLaboratory of Medical Genetics, Papa Giovanni XXIII Hospital, Bergamo, Italy.
Luigi CaimiDepartment of Molecular and Translational Medicine, University of Brescia, Brescia, Italy.
Federica BoldaLaboratory of chemical-clinical analysis, Section of Hematology and blood coagulation, Stem Cells laboratory, Spedali Civili of Brescia, Brescia, Italy.
Renata BaffelliLaboratory of chemical-clinical analysis, Section of Hematology and blood coagulation, Stem Cells laboratory, Spedali Civili of Brescia, Brescia, Italy.
Eleonora CandiDepartment of Experimental Medicine and Surgery, Tor Vergata University, Rome, Italy.
Francesco PasqualiDepartment of Experimental and Clinical Medicine, Insubria University, Varese, Italy.
Francesco Lo CurtoDepartment of Experimental and Clinical Medicine, Insubria University, Varese, Italy.
Arnalda LanfranchiLaboratory of chemical-clinical analysis, Section of Hematology and blood coagulation, Stem Cells laboratory, Spedali Civili of Brescia, Brescia, Italy.
Fulvio PortaLaboratory of chemical-clinical analysis, Section of Hematology and blood coagulation, Stem Cells laboratory, Spedali Civili of Brescia, Brescia, Italy.
Alessandro RambaldiHematology laboratory, USC Hematology, Papa Giovanni XXIII Hospital, Bergamo, Italy.
Giovanni PortaDepartment of Experimental and Clinical Medicine, Insubria University, Varese, Italy.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Imatinib mesylate (IM) is the first line therapy against Chronic Myeloid Leukemia, effectively prolonging overall survival. Because discontinuation of treatment is associated with relapse, IM is required indefinitely to maintain operational cure. To assess minimal residual disease, cytogenetic analysis is insensitive in a high background of normal lymphocytes. The qRT-PCR provides highly sensitive detection of BCR-ABL1 transcripts, but mRNA levels are not directly related to the number of leukemic cells, and undetectable results are difficult to interpret. We developed a sensitive approach to detect the number of leukemic cells by a genomic DNA (gDNA) Q-PCR assay based on the break-point sequence, with a formula to calculate the number of Ph-positive cells. We monitored 8 CML patients treated with IM for more than 8 years. We tested each samples by patient specific gDNA Q-PCR in parallel by the conventional techniques. In all samples positive for chimeric transcripts we showed corresponding chimeric gDNA by Q-PCR, and in 32.8% (42/128) of samples with undetectable levels of mRNA we detected the persistence of leukemic cells. The gDNA Q-PCR assay could be a new diagnostic tool used in parallel to conventional techniques to support the clinician's decision to vary or to STOP IM therapy.

Indexed as

chronic myeloid leukemiaDNA Q-PCRleukemic stem cellsminimal residual diseasestop imatinib

Identifiers

PMID25594053
PMCPMC4278316

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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.