TY - JOUR
T1 - Systematic genomic and translational efficiency studies of uveal melanoma
AU - Johnson, Chelsea Place
AU - Kim, Ivana K.
AU - Esmaeli, Bita
AU - Amin-Mansour, Ali
AU - Treacy, Daniel J.
AU - Carter, Scott L.
AU - Hodis, Eran
AU - Wagle, Nikhil
AU - Seepo, Sara
AU - Yu, Xiaoxing
AU - Lane, Anne Marie
AU - Gragoudas, Evangelos S.
AU - Vazquez, Francisca
AU - Nickerson, Elizabeth
AU - Cibulskis, Kristian
AU - McKenna, Aaron
AU - Gabriel, Stacey B.
AU - Getz, Gad
AU - Van Allen, Eliezer M.
AU - 'T Hoen, Peter A.C.
AU - Garraway, Levi A.
AU - Woodman, Scott E.
N1 - Publisher Copyright:
© 2017 Johnson et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
PY - 2017/6
Y1 - 2017/6
N2 - To further our understanding of the somatic genetic basis of uveal melanoma, we sequenced the protein-coding regions of 52 primary tumors and 3 liver metastases together with paired normal DNA. Known recurrent mutations were identified in GNAQ, GNA11, BAP1, EIF1AX, and SF3B1. The role of mutated EIF1AX was tested using loss of function approaches including viability and translational efficiency assays. Knockdown of both wild type and mutant EIF1AX was lethal to uveal melanoma cells. We probed the function of N-terminal tail EIF1AX mutations by performing RNA sequencing of polysome-associated transcripts in cells expressing endogenous wild type or mutant EIF1AX. Ribosome occupancy of the global translational apparatus was sensitive to suppression of wild type but not mutant EIF1AX. Together, these studies suggest that cells expressing mutant EIF1AX may exhibit aberrant translational regulation, which may provide clonal selective advantage in the subset of uveal melanoma that harbors this mutation.
AB - To further our understanding of the somatic genetic basis of uveal melanoma, we sequenced the protein-coding regions of 52 primary tumors and 3 liver metastases together with paired normal DNA. Known recurrent mutations were identified in GNAQ, GNA11, BAP1, EIF1AX, and SF3B1. The role of mutated EIF1AX was tested using loss of function approaches including viability and translational efficiency assays. Knockdown of both wild type and mutant EIF1AX was lethal to uveal melanoma cells. We probed the function of N-terminal tail EIF1AX mutations by performing RNA sequencing of polysome-associated transcripts in cells expressing endogenous wild type or mutant EIF1AX. Ribosome occupancy of the global translational apparatus was sensitive to suppression of wild type but not mutant EIF1AX. Together, these studies suggest that cells expressing mutant EIF1AX may exhibit aberrant translational regulation, which may provide clonal selective advantage in the subset of uveal melanoma that harbors this mutation.
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U2 - 10.1371/journal.pone.0178189
DO - 10.1371/journal.pone.0178189
M3 - Article
C2 - 28594900
AN - SCOPUS:85020380451
SN - 1932-6203
VL - 12
JO - PloS one
JF - PloS one
IS - 6
M1 - e0178189
ER -