Evidence map›Paper›PMID 35954501›Full record

ArticleCancers2022

Detection of Microsatellite Instability in Colonoscopic Biopsies and Postal Urine Samples from Lynch Syndrome Cancer Patients Using a Multiplex PCR Assay.

Rachel Phelps, Richard Gallon, Christine Hayes, Eli Glover, Philip Gibson, Ibrahim Edidi, Tom Lee, Sarah Mills, Adam Shaw, Rakesh Heer and 5 more

Open access · goldAbstract read
In one paragraph

Article in Cancers, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
1.2field-weighted citation impact, top 22% 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

8 citing papers in PubMed, 10 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Review
  5. Article
  6. Liquid biopsy-based early tumor and minimal residual disease detectionMedizinische Genetik : Mitteilungsblatt des Berufsverbandes Medizinische Genetik e.V · 2023
    Article
  7. Article
  8. A Focused Clinical Review of Lynch Syndrome.Cancer management and research · 2023
    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

15 authors at 5 institutions in 1 country.

Rachel PhelpsBiosciences Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE2 4HH, UK.
Richard GallonTranslational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE2 4HH, UK.ORCID 0000-0002-5395-0099
Christine HayesBiosciences Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE2 4HH, UK.
Eli GloverBiosciences Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE2 4HH, UK.
Philip GibsonDepartment of Histopathology, Northumbria Healthcare NHS Foundation Trust, Newcastle upon Tyne NE27 0QJ, UK.
Ibrahim EdidiDepartment of Histopathology, Northumbria Healthcare NHS Foundation Trust, Newcastle upon Tyne NE27 0QJ, UK.
Tom LeeDepartment of Gastroenterology, Northumbria Healthcare NHS Foundation Trust, Newcastle upon Tyne NE27 0QJ, UK.
Sarah MillsDepartment of Surgery, Northumbria Healthcare NHS Foundation Trust, Newcastle upon Tyne NE27 0QJ, UK.ORCID 0000-0003-0427-2938
Adam ShawGuy's & St Thomas' NHS Foundation Trust, Great Maze Pond, London SE1 9RT, UK.
Rakesh HeerBiosciences Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE2 4HH, UK.
Angela RalteSouth of Tyne and Wear Pathology and Northern Gynaecological Oncology Centre, Queen Elizabeth Hospital, Gateshead Health NHS Trust, Gateshead NE9 6SX, UK.
Ciaron McAnultyThe Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne NE7 7DN, UK.
Mauro Santibanez-KorefBiosciences Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE2 4HH, UK.
John BurnTranslational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE2 4HH, UK.
Michael S JacksonBiosciences Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE2 4HH, UK.
Newcastle University · GBNorthumbria Healthcare NHS Foundation Trust · GBNewcastle upon Tyne Hospitals NHS Foundation Trust · GBGuy's and St Thomas' NHS Foundation Trust · GBQueen Elizabeth Hospital · GB

Funding

Medical Research Council MC_PC_17168
6 · The paper itself

Abstract

Identification of mismatch repair (MMR)-deficient colorectal cancers (CRCs) is recommended for Lynch syndrome (LS) screening, and supports targeting of immune checkpoint inhibitors. Microsatellite instability (MSI) analysis is commonly used to test for MMR deficiency. Testing biopsies prior to tumour resection can inform surgical and therapeutic decisions, but can be limited by DNA quantity. MSI analysis of voided urine could also provide much needed surveillance for genitourinary tract cancers in LS. Here, we reconfigure an existing molecular inversion probe-based MSI and BRAF c.1799T > A assay to a multiplex PCR (mPCR) format, and demonstrate that it can sample >140 unique molecules per marker from <1 ng of DNA and classify CRCs with 96−100% sensitivity and specificity. We also show that it can detect increased MSI within individual and composite CRC biopsies from LS patients, and within preoperative urine cell free DNA (cfDNA) from two LS patients, one with an upper tract urothelial cancer, the other an undiagnosed endometrial cancer. Approximately 60−70% of the urine cfDNAs were tumour-derived. Our results suggest that mPCR sequence-based analysis of MSI and mutation hotspots in CRC biopsies could facilitate presurgery decision making, and could enable postal-based screening for urinary tract and endometrial tumours in LS patients.

Indexed as

liquid biopsyLynch syndromemicrosatellite instabilitymismatch-repair deficiencytumour biopsy

Identifiers

PMID35954501
PMCPMC9367254
OpenAlexW4290703920

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.