Evidence map›Paper›PMID 25432535›Full record

ArticleHuman molecular genetics2015

A shower of second hit events as the cause of multifocal renal cell carcinoma in tuberous sclerosis complex.

Magdalena E Tyburczy, Sergiusz Jozwiak, Izabela A Malinowska, Yvonne Chekaluk, Trevor J Pugh, Chin-Lee Wu, Robert L Nussbaum, Sara Seepo, Tomasz Dzik, Katarzyna Kotulska and 1 more

Open access · greenAbstract read
In one paragraph

Article in Human molecular genetics, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
2.4field-weighted citation impact, top 11% 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

36 citing papers in PubMed, 56 citations in OpenAlex.

  1. Article
  2. Review
  3. Insights into Tuberous Sclerosis Complex : From Genes to Clinics.Journal of Korean Neurosurgical Society · 2025
    Article
  4. Review
  5. Review
  6. Article
  7. Review
  8. Article
  9. Article
  10. Review
  11. Precision Therapy for Epilepsy Related to Brain Malformations.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2021
    Review
  12. Article
  13. Renal tumors in tuberous sclerosis complex.Pediatric nephrology (Berlin, Germany) · 2021
    Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Genetic Causes and Modifiers of Autism Spectrum Disorder.Frontiers in cellular neuroscience · 2019
    Review
  20. 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

11 authors at 3 institutions in 2 countries.

Magdalena E TyburczyDivision of Pulmonary Medicine and of Genetics, Brigham and Women's Hospital, Boston, MA, USA.
Sergiusz JozwiakChildren's Memorial Health Institute of Warsaw, Warsaw, Poland.
Izabela A MalinowskaDivision of Pulmonary Medicine and of Genetics, Brigham and Women's Hospital, Boston, MA, USA.
Yvonne ChekalukDivision of Pulmonary Medicine and of Genetics, Brigham and Women's Hospital, Boston, MA, USA.
Trevor J PughPrincess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada, Department of Medical Biophysics, University of Toronto, Toronto, ON, Canada.
Chin-Lee WuPathology Department, Massachusetts General Hospital, Boston, MA, USA.
Robert L NussbaumDivision of Genomic Medicine, Helen Diller Family Comprehensive Cancer Center and Institute for Human Genetics, University of California San Francisco, San Francisco, CA, USA.
Sara SeepoBroad Institute of MIT and Harvard, Cambridge, MA, USA.
Tomasz DzikChildren's Memorial Health Institute of Warsaw, Warsaw, Poland.
Katarzyna KotulskaChildren's Memorial Health Institute of Warsaw, Warsaw, Poland.
David J KwiatkowskiDivision of Pulmonary Medicine and of Genetics, Brigham and Women's Hospital, Boston, MA, USA, dk@rics.bwh.harvard.edu.
Children's Memorial Health Institute · PLBroad Institute · USHarvard University · US

Funding

Tuberous Sclerosis-Pathway and PathogenesisP01CA120964 · NCI · BRIGHAM AND WOMEN'S HOSPITAL · PI David J. Kwiatkowski · 2007 to 2026
$35.9M
Tuberous Sclerosis: Mutations and Murine ModelsR37NS031535 · NINDS · BRIGHAM AND WOMEN'S HOSPITAL · PI KWIATKOWSKI, DAVID J. · 2007 to 2013
$2.5M
NCI NIH HHS 1P01CA120964NCI NIH HHS P01 CA120964NINDS NIH HHS 2R37NS031535NINDS NIH HHS R37 NS031535
6 · The paper itself

Abstract

Tuberous sclerosis complex (TSC) is a genetic disorder characterized by seizures and tumor formation in multiple organs, mainly in the brain, skin, kidney, lung and heart. Renal cell carcinoma (RCC) occurs in ∼3% of TSC patients, and typically develops at age <50. Here we describe genetic findings in two TSC patients with multiple renal tumors, each of whom had the germline mutation TSC2 p.R905Q. The first (female) TSC patient had a left followed by a right nephrectomy at ages 24 and 27. Both kidneys showed multifocal TSC-associated papillary RCC (PRCC). Targeted, next-generation sequencing (NGS) analysis of TSC2 in five tumors (four from the left kidney, one from the right) showed loss of heterozygosity in one tumor, and four different TSC2 point mutations (p.E1351*, p.R1032*, p.R1713H, c.4178_4179delCT) in the other four samples. Only one of the 11 other tumors available from this patient had one of the TSC2 second hit mutations identified. Whole-exome analysis of the five tumors identified a very small number of additional mutated genes, with an average of 3.4 nonsilent coding, somatic mutations per tumor, none of which were seen in >1 tumor. The second (male) TSC patient had bilateral partial nephrectomies (both at age 36), with similar findings of multifocal PRCC. NGS analysis of TSC2 in two of these tumors identified a second hit mutation c.2355+1G>T in one sample that was not seen in other tumors. In conclusion, we report the first detailed genetic analysis of RCCs in TSC patients. Molecular studies indicate that tumors developed independently due to various second hit events, suggesting that these patients experienced a 'shower' of second hit mutations in TSC2 during kidney development leading to this severe phenotype.

Indexed as

MutationAdolescentAdultCarcinoma, Renal CellChildChild, PreschoolFemaleHumansKidneyLoss of HeterozygosityMaleTuberous SclerosisTuberous Sclerosis Complex 2 ProteinTumor Suppressor ProteinsYoung AdultTSC2 protein, humanTuberous Sclerosis Complex 2 ProteinTumor Suppressor Proteins

Identifiers

PMID25432535
PMCPMC4355019
OpenAlexW2140675840

What OpenQuestion holds

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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.