Late-onset Ocular Toxicity Presenting as Uveitis Caused by Crizotinib.

A 64-year-old female suffering from lung cancer was treated with crizotinib. Two years later, whitish massive optic disc oedema was observed in the right eye. The fluorescein angiography results were suggestive of uveitis but also revealed leakage from the optic disc, retinal veins, and capillaries in the posterior retina and the periphery. These findings remained for over a year without deterioration of vision and disappeared immediately after crizotinib was replaced with alectinib. Late-onset ocular toxicity by crizotinib was strongly suspected, given the clinical course. This is the first report precisely documenting crizotinib-induced morphological changes in the optic disc and retina.

Nonstandard peptide expression under the genetic code consisting of reprogrammed dual sense codons.

We here demonstrate a translation system that is governed by a reprogrammed genetic code consisting of "dual sense codons." A dual sense codon assigns two distinct amino acids for initiation and elongation. Because multiple dual sense codons independently function without cross-readings, this system enables the expansion of the repertoire of initiators as well as elongators that can be used simultaneously.