Synthetic Lethality

A genetic interaction is inferred when mutations or deletions in separate genes, each of which alone causes a minimal phenotype, result in lethality when combined in the same cell under a given condition.

Publication

Estrogen-regulated feedback loop limits the efficacy of estrogen receptor-targeted breast cancer therapy.

Xiao T, Li W, Wang X, Xu H, Yang J, Wu Q, Huang Y, Geradts J, Jiang P, Fei T, Chi D, Zang C, Liao Q, Rennhack J, Andrechek E, Li N, Detre S, Dowsett M, Jeselsohn RM, Liu XS, Brown M

Endocrine therapy resistance invariably develops in advanced estrogen receptor-positive (ER+) breast cancer, but the underlying mechanisms are largely unknown. We have identified C-terminal SRC kinase (CSK) as a critical node in a previously unappreciated negative feedback loop that limits the efficacy of current ER-targeted therapies. Estrogen directly drives CSK expression in ER+ breast cancer. At low CSK levels, as is ... [more]

Proc. Natl. Acad. Sci. U.S.A. Dec. 31, 2017; 115(31);7869-7878 [Pubmed: 29987050]

Throughput

  • High Throughput

Ontology Terms

  • phenotype: growth abnormality (HP:0001507)
  • phenotype: viability (PATO:0000169)

Additional Notes

  • CRISPR GI screen
  • Cell Line:T47D
  • Experimental Setup: Timecourse, negative selection, viability
  • GIST: A-phenotypic negative genetic interaction
  • Library: Geckov2
  • Significance Threshold: FDR<0.05

Curated By

  • BioGRID