FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Human Disease Model Report: cancer, mesothelial, FMR1-related
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General Information
Name
cancer, mesothelial, FMR1-related
FlyBase ID
FBhh0000785
Disease Ontology Term
Parent Disease
OMIM
Overview

A number of observations, including increased expression of FMR1 in a variety of cancers, support a role of FMR1 in the development of some types of cancer. FMR1 encodes a component of an RNA-binding complex that binds to the mRNA cap and mediates translational repression. There is a single fly ortholog, Dmel\Fmr1, for which classical amorphic and hypomorphic alleles, RNAi-targeting constructs, and alleles caused by insertional mutagenesis have been generated. Dmel\Fmr1 is also orthologous to two additional human genes, FXR1 and FXR2.

Multiple different UAS constructs of the human gene Hsap\FMR1 have been introduced into flies. These have been used to investigate fragile-X-related syndromes (FBhh0000123), which are caused by loss of FMR1 function.

The Drosophila imaginal wing disc has been used to investigate the role of Dmel\Fmr1 in this epithelial tissue. Overexpression of Fmr1 results in phenotypes indicative of cell death and an up-regulation of the JNK pathway; cell migration across compartment boundaries occurs. Also observed are increased expression of a matrix metalloprotease and degradation of the basement membrane, both of which occur during malignant tumorigenesis. Extensive physical and genetic interactions of Dmel\Fmr1 have been described; see below and in the gene report for Fmr1.

[updated Apr. 2018 by FlyBase; FBrf0222196]

Disease Summary Information
Disease Summary: cancer, mesothelial, FMR1-related
OMIM report
Human gene(s) implicated
Symptoms and phenotype

FMR1 is almost ubiquitously expressed, suggesting that, in addition to its functions in the brain, it may have fundamental roles in other organs. Increased expression of FMR1 has been reported in a number of cancers, while a decreased risk of cancer has been reported in patients with fragile X syndrome (Luca, et al., 2013, pubmed:24092663 and references cited therein).

Genetics
Cellular phenotype and pathology
Molecular information

The protein encoded by FMR1 has been shown to bind mRNAs involved in epithelial mesenchymal transition and invasion (Luca, et al., 2013; pubmed:24092663).

The FMR1 protein is part of an RNA-binding complex that binds to the mRNA cap and mediates translational repression; may also play a role in intracellular transport of mRNA from the nucleus to the cytoplasm. [UniProt:Q06787; 2016.01.15]

External links
Disease synonyms
cancer, epithelial, FMR1-related
Ortholog Information
Human gene(s) in FlyBase
Human gene (HGNC)
D. melanogaster ortholog (based on DIOPT)
Comments on ortholog(s)

Many to one: 3 human to 1 Drosophila. Three human genes, FMR1, FXR1 and FXR2, are orthologous to the fly gene Dmel\Fmr1.

Other mammalian ortholog(s) used
    D. melanogaster Gene Information (1)
    Gene Snapshot
    Fmr1 (Fmr1) encodes an RNA and channel binding protein. It acts as a neural growth brake regulating RNA trafficking, RNA translation and neuronal excitability. Fmr1 loss causes Fragile X syndrome. [Date last reviewed: 2019-03-07]
    Gene Groups / Pathways
    Comments on ortholog(s)

    Moderate-scoring ortholog of human gene FMR1, FXR1 and FXR2 (1 Drosophila to 3 human). Dmel\Fmr1 shares 36-38% identity and 51-53% similarity with the 3 human genes.

    Orthologs and Alignments from DRSC
    DIOPT - DRSC Integrative Ortholog Prediction Tool - Click the link below to search for orthologs in Humans
    Other Genes Used: Viral, Bacterial, Synthetic (0)
      Summary of Physical Interactions (125 groups)
      RNA-protein
      Interacting group
      Assay
      References
      anti tag coimmunoprecipitation, quantitative reverse transcription pcr, anti bait coimmunoprecipitation, primer specific pcr, pull down, autoradiography, western blot
      anti tag coimmunoprecipitation, northern blot, electrophoretic mobility shift assay, autoradiography
      anti tag coimmunoprecipitation, reverse transcription pcr
      anti bait coimmunoprecipitation, reverse transcription pcr
      clip-seq, anti bait coimmunoprecipitation, quantitative reverse transcription pcr
      anti bait coimmunoprecipitation, quantitative reverse transcription pcr
      anti tag coimmunoprecipitation, primer specific pcr
      anti bait coimmunoprecipitation, quantitative reverse transcription pcr
      anti bait coimmunoprecipitation, quantitative reverse transcription pcr
      anti bait coimmunoprecipitation, quantitative reverse transcription pcr
      anti bait coimmunoprecipitation, western blot, quantitative reverse transcription pcr, anti tag coimmunoprecipitation
      proximity labelling technology, nucleotide sequence identification, anti tag coimmunoprecipitation, reverse transcription pcr, quantitative reverse transcription pcr
      anti bait coimmunoprecipitation, quantitative reverse transcription pcr
      anti bait coimmunoprecipitation, quantitative reverse transcription pcr
      anti tag coimmunoprecipitation, reverse transcription pcr
      anti bait coimmunoprecipitation, quantitative reverse transcription pcr
      anti bait coimmunoprecipitation, full identification by DNA sequencing, primer specific pcr
      anti bait coimmunoprecipitation, quantitative reverse transcription pcr, clip-seq
      anti bait coimmunoprecipitation, quantitative reverse transcription pcr, clip-seq
      anti bait coimmunoprecipitation, quantitative reverse transcription pcr, anti tag coimmunoprecipitation, reverse transcription pcr, primer specific pcr
      anti bait coimmunoprecipitation, quantitative reverse transcription pcr
      anti bait coimmunoprecipitation, quantitative reverse transcription pcr
      anti bait coimmunoprecipitation, quantitative reverse transcription pcr
      anti bait coimmunoprecipitation, quantitative reverse transcription pcr
      anti bait coimmunoprecipitation, reverse transcription pcr
      anti tag coimmunoprecipitation, quantitative reverse transcription pcr
      clip-seq, anti bait coimmunoprecipitation, quantitative reverse transcription pcr
      anti bait coimmunoprecipitation, quantitative reverse transcription pcr
      anti bait coimmunoprecipitation, quantitative reverse transcription pcr
      anti bait coimmunoprecipitation, quantitative reverse transcription pcr
      anti tag coimmunoprecipitation, northern blot
      anti tag coimmunoprecipitation, northern blot
      anti bait coimmunoprecipitation, quantitative reverse transcription pcr
      anti bait coimmunoprecipitation, quantitative reverse transcription pcr
      anti bait coimmunoprecipitation, quantitative reverse transcription pcr
      anti bait coimmunoprecipitation, quantitative reverse transcription pcr
      anti bait coimmunoprecipitation, quantitative reverse transcription pcr
      anti bait coimmunoprecipitation, quantitative reverse transcription pcr
      anti tag coimmunoprecipitation, northern blot
      anti bait coimmunoprecipitation, quantitative reverse transcription pcr
      anti bait coimmunoprecipitation, quantitative reverse transcription pcr, anti tag coimmunoprecipitation, reverse transcription pcr
      anti bait coimmunoprecipitation, quantitative reverse transcription pcr
      anti bait coimmunoprecipitation, quantitative reverse transcription pcr
      anti bait coimmunoprecipitation, quantitative reverse transcription pcr
      anti bait coimmunoprecipitation, quantitative reverse transcription pcr
      anti bait coimmunoprecipitation, quantitative reverse transcription pcr
      anti bait coimmunoprecipitation, quantitative reverse transcription pcr
      anti tag coimmunoprecipitation, northern blot, anti bait coimmunoprecipitation, quantitative reverse transcription pcr
      anti bait coimmunoprecipitation, quantitative reverse transcription pcr
      anti tag coimmunoprecipitation, reverse transcription pcr
      anti tag coimmunoprecipitation, reverse transcription pcr
      anti tag coimmunoprecipitation, quantitative reverse transcription pcr
      anti tag coimmunoprecipitation, reverse transcription pcr
      pull down, coimmunoprecipitation, quantitative reverse transcription pcr
      anti bait coimmunoprecipitation, reverse transcription pcr
      anti bait coimmunoprecipitation, quantitative reverse transcription pcr
      anti bait coimmunoprecipitation, quantitative reverse transcription pcr
      anti bait coimmunoprecipitation, quantitative reverse transcription pcr, clip-seq
      anti bait coimmunoprecipitation, quantitative reverse transcription pcr
      anti tag coimmunoprecipitation, quantitative reverse transcription pcr
      anti tag coimmunoprecipitation, quantitative reverse transcription pcr, reverse transcription pcr
      anti bait coimmunoprecipitation, quantitative reverse transcription pcr, clip-seq
      anti bait coimmunoprecipitation, quantitative reverse transcription pcr
      clip-seq, anti bait coimmunoprecipitation, quantitative reverse transcription pcr
      anti bait coimmunoprecipitation, quantitative reverse transcription pcr
      protein-protein
      Interacting group
      Assay
      References
      anti tag coimmunoprecipitation, quantitative reverse transcription pcr, anti bait coimmunoprecipitation, primer specific pcr, pull down, autoradiography, western blot
      tandem affinity purification, western blot, peptide massfingerprinting, anti tag coimmunoprecipitation
      anti bait coimmunoprecipitation, western blot, anti tag coimmunoprecipitation, anti tag western blot
      molecular sieving, ion exchange chromatography, peptide massfingerprinting, anti tag coimmunoprecipitation, anti tag western blot, western blot, pull down, autoradiography
      anti tag coimmunoprecipitation, western blot
      pull down, autoradiography, anti tag coimmunoprecipitation, anti tag western blot
      anti tag coimmunoprecipitation, western blot
      two hybrid, pull down, western blot, Identification by mass spectrometry, anti bait coimmunoprecipitation
      anti bait coimmunoprecipitation, western blot
      anti bait coimmunoprecipitation, peptide massfingerprinting, western blot
      anti bait coimmunoprecipitation, western blot
      anti bait coimmunoprecipitation, western blot, quantitative reverse transcription pcr, anti tag coimmunoprecipitation
      anti bait coimmunoprecipitation, western blot
      anti bait coimmunoprecipitation, western blot, pull down, autoradiography
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, western blot
      anti tag coimmunoprecipitation, western blot
      anti tag coimmunoprecipitation, western blot
      anti bait coimmunoprecipitation, western blot, peptide massfingerprinting
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti bait coimmunoprecipitation, western blot, pull down, anti tag coimmunoprecipitation, anti tag western blot
      anti tag coimmunoprecipitation, anti tag western blot, western blot, Identification by mass spectrometry, molecular sieving, molecular weight estimation by staining, pull down
      anti tag coimmunoprecipitation, anti tag western blot
      anti bait coimmunoprecipitation, western blot, enzymatic study, pull down, Identification by mass spectrometry
      pull down, western blot
      anti tag coimmunoprecipitation, western blot, coimmunoprecipitation
      anti bait coimmunoprecipitation, western blot
      anti tag coimmunoprecipitation, anti tag western blot, anti bait coimmunoprecipitation, western blot, peptide massfingerprinting, coimmunoprecipitation
      anti tag coimmunoprecipitation, western blot
      anti bait coimmunoprecipitation, western blot
      anti tag coimmunoprecipitation, western blot
      anti tag coimmunoprecipitation, western blot
      anti bait coimmunoprecipitation, western blot, peptide massfingerprinting
      anti bait coimmunoprecipitation, western blot, Identification by mass spectrometry
      anti tag coimmunoprecipitation, western blot, anti tag western blot, pull down, anti bait coimmunoprecipitation
      anti bait coimmunoprecipitation, western blot
      pull down, western blot, anti bait coimmunoprecipitation
      anti tag coimmunoprecipitation, western blot
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti bait coimmunoprecipitation, Identification by mass spectrometry, western blot, anti tag coimmunoprecipitation, peptide massfingerprinting, pull down, autoradiography, anti tag western blot
      electron microscopy, inferred by author, pull down, autoradiography, anti tag coimmunoprecipitation, anti tag western blot, cross-linking study, anti bait coimmunoprecipitation, Identification by mass spectrometry, peptide massfingerprinting
      pull down, autoradiography, anti tag coimmunoprecipitation, anti tag western blot, peptide massfingerprinting
      anti tag coimmunoprecipitation, western blot
      anti tag coimmunoprecipitation, western blot
      anti tag coimmunoprecipitation, western blot
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti bait coimmunoprecipitation, western blot, pull down, Identification by mass spectrometry
      anti tag coimmunoprecipitation, anti tag western blot, western blot
      coimmunoprecipitation, western blot
      coimmunoprecipitation, Identification by mass spectrometry, anti bait coimmunoprecipitation, anti tag western blot, anti tag coimmunoprecipitation, western blot, cosedimentation through density gradient
      anti bait coimmunoprecipitation, western blot, anti tag coimmunoprecipitation, Identification by mass spectrometry, cosedimentation through density gradient
      anti bait coimmunoprecipitation, western blot
      anti bait coimmunoprecipitation, western blot, molecular sieving, ion exchange chromatography
      anti bait coimmunoprecipitation, western blot
      anti tag coimmunoprecipitation, western blot, molecular sieving, ion exchange chromatography, anti bait coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, Identification by mass spectrometry, anti tag western blot, pull down, molecular weight estimation by staining
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti bait coimmunoprecipitation, anti tag western blot, anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, western blot, anti tag western blot, Identification by mass spectrometry
      RNA-RNA
      Interacting group
      Assay
      References
      luminiscence technology, western blot
      fluorescence technology, luminiscence technology, necessary binding region
      luminiscence technology
      Alleles Reported to Model Human Disease (Disease Ontology) (41 alleles)
      Models Based on Experimental Evidence ( 34 )
      Allele
      Disease
      Evidence
      References
      Modifiers Based on Experimental Evidence ( 18 )
      Allele
      Disease
      Interaction
      References
      exacerbates  Troyer syndrome
      Models Based on Experimental Evidence ( 3 )
      Modifiers Based on Experimental Evidence ( 1 )
      Allele
      Disease
      Interaction
      References
      Alleles Representing Disease-Implicated Variants
      Genetic Tools, Stocks and Reagents
      Sources of Stocks
      Contact lab of origin for a reagent not available from a public stock center.
      Bloomington Stock Center Disease Page
      Related mammalian, viral, bacterial, or synthetic transgenes
      Allele
      Transgene
      Publicly Available Stocks
      Selected Drosophila transgenes
      Allele
      Transgene
      Publicly Available Stocks
      RNAi constructs available
      Allele
      Transgene
      Publicly Available Stocks
      Selected Drosophila classical alleles
      Allele
      Allele class
      Mutagen
      Publicly Available Stocks
      P-element activity
      loss of function allele
      ethyl methanesulfonate
      loss of function allele
      ethyl methanesulfonate
      Delta2-3 transposase
      amorphic allele - genetic evidence
      Delta2-3 transposase
      amorphic allele - genetic evidence
      Delta2-3 transposase
      loss of function allele
      Delta2-3 transposase
      loss of function allele
      ethyl methanesulfonate
      loss of function allele
      Delta2-3 transposase
      amorphic allele - genetic evidence
      Delta2-3 transposase
      loss of function allele
      P-element activity
      References (3)