FB2025_01 , released February 20, 2025
Human Disease Model Report: cancer, intestinal stem cell, APC-RAS-SNA-related
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General Information
Name
cancer, intestinal stem cell, APC-RAS-SNA-related
FlyBase ID
FBhh0001110
Disease Ontology Term
Parent Disease
OMIM
Overview

This report describes a model of metastatic intestinal cancer that uses the Drosophila sna gene in combination with an existing model of intestinal cancer (FBhh0000912) using Apc or Apc2 with Ras85D. The established APC-RAS-related model of intestinal stem cell cancer does not show metastatic behavior outside the Drosophila midgut, which is analogous to the human small intestine.

This APC-RAS-SNA metastatic cancer model was designed as an extension of the existing APC-RAS model, which does not show metastatic qualities. For details about the roles of Apc, Apc2, and Ras85D in this model, see the human disease model report 'cancer, intestinal stem cell, APC-RAS-related' (FBhh0000912).

Similar to APC-RAS tumors, APC-RAS-SNA clones grow rapidly in the gut, but also metastasize to multiple other locations (head, ovary, legs) within 2-3 weeks. These tumors can cross the blood-brain barrier, and tumor allografts grow rapidly and invasively in new hosts, causing death within 2 weeks. APC-RAS-SNA tumor cells show evidence of a partial epithelial-to-mesenchymal transition, including disrupted polarity and the ability to migrate through basal lamina, but they still express E-cadherin (shg), although it was not restricted to the apical surface. Tumor cells are also found enveloping the trachea and in the hemolymph, which is similar to how tumors metastasize in mammalian models.

[updated Aug 2019 by FlyBase; FBrf0222196]

Disease Summary Information
Disease Summary: cancer, intestinal stem cell, APC-RAS-SNA-related
OMIM report
Human gene(s) implicated
Symptoms and phenotype
Genetics
Cellular phenotype and pathology
Molecular information

SNA and its paralogs have a well-studied role in initiating the epithelial-to-mesenchymal transition during early development, but this function can be pathologic if enabled in tumor cells (Barrallo-Gimeno & Nieto 2005 and references therein, FBrf0190271).

External links
Disease synonyms
Search term: neoplastic phenotype
Ortholog Information
Human gene(s) in FlyBase
Human gene (HGNC)
D. melanogaster ortholog (based on DIOPT)
Comments on ortholog(s)

Many to many: multiple paralogs and orthologs in both species.

Human gene (HGNC)
D. melanogaster ortholog (based on DIOPT)
Comments on ortholog(s)

Many to many: multiple paralogs and orthologs in both species.

Human gene (HGNC)
D. melanogaster ortholog (based on DIOPT)
Comments on ortholog(s)

Many to many: 2 human to 2 Drosophila. There are two orthologous genes in each species, APC and APC2 in humans, Apc and Apc2 in flies.

Human gene (HGNC)
D. melanogaster ortholog (based on DIOPT)
Comments on ortholog(s)

Many to many: multiple paralogs and orthologs in both species.

Human gene (HGNC)
D. melanogaster ortholog (based on DIOPT)
Comments on ortholog(s)

Many to many: multiple paralogs and orthologs in both species.

Other mammalian ortholog(s) used
    D. melanogaster Gene Information (5)
    Gene Snapshot
    Ras oncogene at 85D (Ras85D) encodes a protein that acts downstream of several cell signals, most notably from Receptor Tyrosine Kinases, to regulate tissue growth and development. When abnormally activated it can direct developmental defects and tissue hyperplasia, mimicking aspects of human disease including Rasopathies and cancer, respectively. [Date last reviewed: 2019-03-14]
    Cellular component (GO)
    Gene Groups / Pathways
    Comments on ortholog(s)

    High-scoring ortholog of human genes KRAS, HRAS, and NRAS (many to many; multiple paralogs and orthologs in both species). Dmel\Ras85D shares 78-86% identity and 86-92% similarity with KRAS, HRAS, and NRAS; for these three human genes, Ras85D is the highest-scoring ortholog in Drosophila.

    Orthologs and Alignments from DRSC
    DIOPT - DRSC Integrative Ortholog Prediction Tool - Click the link below to search for orthologs in Humans
    Gene Snapshot
    snail (sna) encodes a transcription factor that contributes to embryonic mesoderm development, epithelial to mesenchymal transition and asymmetric cell division. [Date last reviewed: 2019-03-14]
    Cellular component (GO)
    Gene Groups / Pathways
    Comments on ortholog(s)

    Moderately-ranking ortholog of human SNAI2. SNAI2's best-ranking Drosophila ortholog is a sna paralog, Dmel\esg.

    Orthologs and Alignments from DRSC
    DIOPT - DRSC Integrative Ortholog Prediction Tool - Click the link below to search for orthologs in Humans
    Gene Snapshot
    APC-like (Apc) encodes one of two Drosophila APC family proteins. It is a key negative regulator of Wingless signaling, as a critical component of the destruction complex that phosphorylates beta-catenin and thus targets it for ubiquitination and proteasomal destruction. It is the primary family member during CNS and eye development, and functions redundantly with the product of Apc2 in adult development. [Date last reviewed: 2019-03-07]
    Gene Groups / Pathways
    Comments on ortholog(s)

    Ortholog of human genes APC and APC2 (2 Drosophila to 2 human). Dmel\Apc shares 25-26% identity and 37% similarity with both human genes; it lacks a microtubule-binding domain found at the C terminus of the human APC gene.

    Orthologs and Alignments from DRSC
    DIOPT - DRSC Integrative Ortholog Prediction Tool - Click the link below to search for orthologs in Humans
    Gene Snapshot
    Adenomatous polyposis coli 2 (Apc2) encodes one of two Drosophila APC family proteins. It is a key negative regulator of Wingless signaling, as a critical component of the destruction complex that phosphorylates beta-catenin and thus targets it for ubiquitination and proteasomal destruction. It is the primary APC family member during embryonic development, and functions redundantly with the product of Apc in adult development. [Date last reviewed: 2019-03-07]
    Gene Groups / Pathways
    Comments on ortholog(s)

    Ortholog of human genes APC and APC2 (2 Drosophila to 2 human). Dmel\Apc2 is significantly shorter than both human genes and the orthologous fly gene, Dmel\Apc. Dmel\Apc2 shares 26-27% identity and 37-38% similarity with both human genes; it lacks a microtubule-binding domain found at the C terminus of the human APC gene.

    Orthologs and Alignments from DRSC
    DIOPT - DRSC Integrative Ortholog Prediction Tool - Click the link below to search for orthologs in Humans
    Gene Snapshot
    escargot (esg) encodes a Snail-type transcription factor that contributes to stem cell maintenance, tracheal morphogenesis and neuroblast differentiation. [Date last reviewed: 2019-03-07]
    Cellular component (GO)
    Gene Groups / Pathways
    Comments on ortholog(s)

    Highest-ranking ortholog of human SNAI2.

    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 (68 groups)
      protein-protein
      Interacting group
      Assay
      References
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      two hybrid, anti tag coimmunoprecipitation, autoradiography
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, anti tag western blot
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      gtpase assay, autoradiography
      anti tag coimmunoprecipitation, peptide massfingerprinting
      pull down, western blot, two hybrid
      anti tag coimmunoprecipitation, peptide massfingerprinting
      two hybrid, pull down, anti tag coimmunoprecipitation, anti tag western blot
      pull down, anti tag western blot
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, peptide massfingerprinting
      anti tag coimmunoprecipitation, anti tag western blot
      anti tag coimmunoprecipitation, Identification by mass spectrometry, pull down, covalent binding, western blot
      protein-protein
      Interacting group
      Assay
      References
      pull down, autoradiography
      two hybrid array, pull down, western blot, anti tag coimmunoprecipitation, anti tag western blot
      anti tag coimmunoprecipitation, anti tag western blot, pull down
      protein-protein
      Interacting group
      Assay
      References
      colocalization, fluorescence microscopy, inferred by author, two hybrid
      coimmunoprecipitation, western blot, pull down, autoradiography
      pull down, autoradiography
      pull down, anti tag western blot
      protein-protein
      Interacting group
      Assay
      References
      anti tag coimmunoprecipitation, western blot, anti tag western blot, two hybrid
      colocalization, fluorescence microscopy, inferred by author, two hybrid
      anti bait coimmunoprecipitation, western blot, pull down, autoradiography, anti tag coimmunoprecipitation, anti tag western blot, two hybrid
      two hybrid, anti tag coimmunoprecipitation, anti tag western blot, western blot, bimolecular fluorescence complementation, fluorescence microscopy
      pull down, autoradiography, Identification by mass spectrometry
      anti bait coimmunoprecipitation, western blot, pull down, anti tag western blot
      experimental knowledge based
      anti tag coimmunoprecipitation, anti tag western blot
      pull down, autoradiography
      two hybrid, anti tag coimmunoprecipitation, western blot, pull down
      anti tag coimmunoprecipitation, anti tag western blot
      protein-protein
      Interacting group
      Assay
      References
      bimolecular fluorescence complementation, fluorescence microscopy
      anti tag coimmunoprecipitation, anti tag western blot
      anti tag coimmunoprecipitation, anti tag western blot, pull down
      bimolecular fluorescence complementation, fluorescence microscopy
      RNA-RNA
      Interacting group
      Assay
      References
      immunohistochemistry, luminiscence technology
      RNA-protein
      Interacting group
      Assay
      References
      anti bait coimmunoprecipitation, quantitative reverse transcription pcr, clip-seq
      Alleles Reported to Model Human Disease (Disease Ontology) (42 alleles)
      Models Based on Experimental Evidence ( 16 )
      Allele
      Disease
      Evidence
      References
      model of  cancer
      Modifiers Based on Experimental Evidence ( 18 )
      Allele
      Disease
      Interaction
      References
      model of  cancer
      is exacerbated by ITPUAS.F
      model of  cancer
      is ameliorated by InRGL00139
      is ameliorated by InRJF01183
      is ameliorated by InRJF01482
      is ameliorated by NetBΔ
      is ameliorated by NetBKK103672
      is ameliorated by unc-5MI04273
      is ameliorated by bskDN.UAS
      is ameliorated by bskHMS00777
      is exacerbated by hepAct.UAS
      is exacerbated by imdUAS.cGa
      is ameliorated by JraNIG.2275R
      is ameliorated by TimpUAS.cPa
      ameliorates  cancer
      model of  kidney cancer
      is ameliorated by Pka-C1B3
      is ameliorated by mTorΔP
      model of  cancer
      is exacerbated by exe1
      is exacerbated by Ptp61FΔ
      is exacerbated by M6W186stop
      is ameliorated by Ptip3804
      is exacerbated by p53UAS.cUa
      is ameliorated by Ilp8MI00727
      Models Based on Experimental Evidence ( 2 )
      Modifiers Based on Experimental Evidence ( 0 )
      Allele
      Disease
      Interaction
      References
      Models Based on Experimental Evidence ( 1 )
      Allele
      Disease
      Evidence
      References
      Modifiers Based on Experimental Evidence ( 3 )
      Allele
      Disease
      Interaction
      References
      exacerbates  carcinoma
      model of  carcinoma
      is ameliorated by CtBPHMS00677
      is ameliorated by CtBPJF01291
      Models Based on Experimental Evidence ( 4 )
      Modifiers Based on Experimental Evidence ( 1 )
      Allele
      Disease
      Interaction
      References
      is ameliorated by ewgP1
      Models Based on Experimental Evidence ( 5 )
      Modifiers Based on Experimental Evidence ( 1 )
      Allele
      Disease
      Interaction
      References
      Models Based on Experimental Evidence ( 0 )
      Allele
      Disease
      Evidence
      References
      Modifiers Based on Experimental Evidence ( 2 )
      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
      loss of function allele
      CRISPR/Cas9
      amorphic allele - genetic evidence
      Delta2-3 transposase
      P-element activity
      loss of function allele
      ethyl methanesulfonate
      amorphic allele - genetic evidence
      Delta2-3 transposase
      loss of function allele
      ethyl methanesulfonate
      amorphic allele - genetic evidence
      spontaneous
      loss of function allele
      ethyl methanesulfonate
      amorphic allele - genetic evidence
      X ray
      amorphic allele - genetic evidence
      ethyl methanesulfonate
      loss of function allele
      loss of function allele
      P-element activity
      amorphic allele - genetic evidence
      loss of function allele
      ethyl methanesulfonate
      amorphic allele - genetic evidence
      ethyl methanesulfonate
      loss of function allele
      ethyl methanesulfonate
      Delta2-3 transposase
      loss of function allele
      CRISPR/Cas9
      amorphic allele - genetic evidence
      Delta2-3 transposase
      P-element activity
      loss of function allele
      Delta2-3 transposase
      loss of function allele
      ethyl methanesulfonate
      amorphic allele - genetic evidence
      Delta2-3 transposase
      loss of function allele
      ethyl methanesulfonate
      amorphic allele - genetic evidence
      spontaneous
      References (8)