FB2024_04 , released June 25, 2024
Human Disease Model Report: cancer, epithelial, LLGL-MYC-related
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General Information
Name
cancer, epithelial, LLGL-MYC-related
FlyBase ID
FBhh0001287
Disease Ontology Term
Parent Disease
OMIM
Overview

This model of epithelial cancer uses the Drosophila Scribble polarity complex gene l(2)gl in combination with the fly ortholog of the human MYC oncogene, Dmel\Myc. The highly conserved Scribble polarity complex plays a key role in determining cell polarity and cell proliferation in epithelial cells. MYC encodes a transcription factor that plays a role in cell cycle progression, apoptosis and cellular transformation.

Animals homozygous for loss-of-function mutations of Dmel\l(2)gl typically die during the larval stage and exhibit abnormal overproliferation of multiple tissues. Epithelial phenotypes have been assessed using mosaic clones in wing imaginal discs. Somatic clones that are homozygous for loss-of-function mutations of l(2)gl generated in wild-type imaginal discs are eliminated or reduced to very small size. When clones carrying both a loss-of-function mutation of l(2)gl and an over-expression allele of Dmel\Myc are generated, significant overgrowth is observed for clones located in the proximal part of the disc, but not for clones located in the distal part of the disc. The overproliferating clones exhibit impaired apical-basal polarity and disruptions to the basement membrane.

Transgenes of the human genes Hsap\MYC and Hsap\LLGL1 have been introduced into flies. In both cases, partial heterologous rescue (functional complementation) has been demonstrated.

See also human disease model reports 'cancer, epithelial, LLGL-related' (FBhh0000591) and 'cancer, multiple, MYC-related' (FBhh0000402).

[updated Nov. 2020 by FlyBase; FBrf0222196]

Disease Summary Information
Disease Summary: cancer, epithelial, LLGL-MYC-related
OMIM report
Human gene(s) implicated
Symptoms and phenotype
Genetics
Cellular phenotype and pathology
Molecular information

LLGL1 and LLGL2 encode cortical cytoskeleton proteins found in a complex involved in maintaining cell polarity and epithelial integrity, the Scribble Cell Polarity Complex. This complex plays a role in the initial phase of the establishment of epithelial cell polarity; it is involved in the regulation of mitotic spindle orientation, proliferation, differentiation, and tissue organization of neuroepithelial cells. [Gene Cards, LLGL1, LLGL2; 2020.11.10]]

MYC encodes a transcription factor that plays a role in cell cycle progression, apoptosis and cellular transformation. [Gene Cards, MYC; 2020.11.10]

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

Many to one: 2 human genes to 1 Drosophila gene; the second human gene is LLGL1.

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

Many to one: 2 human genes to 1 Drosophila gene; the second human gene is LLGL2.

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

Many to one : 3 human genes to 1 Drosophila gene; additional (lower-scoring) human orthologs are MYCN and MYCL.

Other mammalian ortholog(s) used
    D. melanogaster Gene Information (2)
    Gene Snapshot
    lethal (2) giant larvae (l(2)gl) encodes a tumor suppressor protein that regulates cell polarity and asymmetric cell division. It acts on the basolateral side of epithelial cells, antagonizing the activity of apical complex proteins encoded by baz, par-6 and aPKC. [Date last reviewed: 2019-09-26]
    Gene Groups / Pathways
    Comments on ortholog(s)

    Moderate- to high-scoring ortholog of human LLGL1 and LLGL2 (1 Drosophila to 2 human). Dmel\l(2)gl shares 34-36% identity and 51-54% similarity with the human genes.

    Orthologs and Alignments from DRSC
    DIOPT - DRSC Integrative Ortholog Prediction Tool - Click the link below to search for orthologs in Humans
    Gene Snapshot
    Myc (Myc) encodes a transcription factor that is homologous to vertebrate Myc proto-oncogenes. It contributes to cell growth, cell competition and regenerative proliferation. [Date last reviewed: 2019-03-14]
    Gene Groups / Pathways
    Comments on ortholog(s)

    Orthologous to human gene MYC (reciprocal best hit); lower scoring ortholog of human MYCN and MYCL (1 Drosophila to 3 human). Dmel\Myc shares 31% identity and 44% similarity with human MYC, within the carboxy extents of the two proteins.

    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 (109 groups)
      protein-protein
      Interacting group
      Assay
      References
      anti tag coimmunoprecipitation, anti tag western blot
      anti tag coimmunoprecipitation, peptide massfingerprinting, anti bait coimmunoprecipitation, western blot, experimental knowledge based, proximity ligation assay, fluorescence microscopy
      anti tag coimmunoprecipitation, western blot
      anti tag coimmunoprecipitation, western blot
      proximity ligation assay, fluorescence microscopy
      anti tag coimmunoprecipitation, anti tag western blot
      anti tag coimmunoprecipitation, western blot
      anti tag coimmunoprecipitation, western blot
      anti tag coimmunoprecipitation, western blot, anti bait coimmunoprecipitation
      pull down, western blot, anti tag coimmunoprecipitation, peptide massfingerprinting, anti bait coimmunoprecipitation, experimental knowledge based, autoradiography, anti tag western blot
      proximity ligation assay, fluorescence microscopy, pull down, Identification by mass spectrometry, anti tag coimmunoprecipitation, anti tag western blot
      anti tag coimmunoprecipitation, anti tag western blot
      anti tag coimmunoprecipitation, anti tag western blot
      protein-protein
      Interacting group
      Assay
      References
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, anti tag western blot, western blot, tandem affinity purification, Identification by mass spectrometry, two hybrid, anti bait coimmunoprecipitation
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti bait coimmunoprecipitation, western blot
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, anti tag western blot
      anti tag coimmunoprecipitation, western blot, anti tag western blot, proximity ligation assay, fluorescence microscopy, pull down, autoradiography, anti bait coimmunoprecipitation
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, anti tag western blot, pull down, autoradiography
      anti bait coimmunoprecipitation, western blot
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, anti tag western blot
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      pull down, autoradiography, anti bait coimmunoprecipitation, western blot, anti tag western blot
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti bait coimmunoprecipitation, anti tag western blot, anti tag coimmunoprecipitation, pull down, autoradiography
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, western blot
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti bait coimmunoprecipitation, western blot, pull down, autoradiography
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      pull down, autoradiography, anti tag coimmunoprecipitation, anti tag western blot, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      pull down, western blot, anti bait coimmunoprecipitation, anti tag coimmunoprecipitation
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti bait coimmunoprecipitation, western blot
      anti tag coimmunoprecipitation, western blot, anti bait coimmunoprecipitation, pull down
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti bait coimmunoprecipitation, anti tag western blot, anti tag coimmunoprecipitation, western blot
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, western blot
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      anti tag coimmunoprecipitation, Identification by mass spectrometry
      RNA-protein
      Interacting group
      Assay
      References
      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, primer specific pcr
      RNA-RNA
      Interacting group
      Assay
      References
      quantitative reverse transcription pcr, western blot
      Alleles Reported to Model Human Disease (Disease Ontology) (18 alleles)
      Models Based on Experimental Evidence ( 7 )
      Allele
      Disease
      Evidence
      References
      Modifiers Based on Experimental Evidence ( 4 )
      Models Based on Experimental Evidence ( 5 )
      Modifiers Based on Experimental Evidence ( 9 )
      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
      spontaneous
      amorphic allele - genetic evidence
      spontaneous
      spontaneous
      amorphic allele - molecular evidence
      ends-out gene targeting
      amorphic allele - molecular evidence
      P-element activity
      References (5)