On May 21, 2018 NantOmics, LLC, the leader in molecular analyses and a member of the NantWorks ecosystem of companies, reported the publication of peer-reviewed research defining for the first time three distinct classifications of sebaceous carcinoma, a rare and sometimes deadly former of skin cancer (Press release, NantOmics, MAY 21, 2018, View Source [SID1234526833]).
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A study published on May 14 in the journal Nature Communications shows that a signature analysis reveals three clinically distinct classes of sebaceous carcinoma. The research offers fresh insights into how to treat the disease and adds more data to the concept that different mutational processes drive cancers that originate in the same location but are clinically distinct.
Using the technology that drives NantHealth Inc’s (NASDAQ: NH) GPS Cancer platform, NantOmics scientists performed tumor-normal DNA sequencing and RNA sequencing on tissue samples from 32 patients with sebaceous carcinoma, revealing that the cell of origin and mutation patterns defined three clinically distinct classes. These explain both cancer ontogeny and clinical course.
"This is the first time that we have been able to define sebaceous carcinoma into distinct molecular classifications with defined mutational signature profiles," said Dr. Shahrooz Rabizadeh, Chief Scientific Officer at NantOmics. "We believe that our findings and the classifications have significant implications on patient treatment."
Dr. Patrick Soon-Shiong, CEO and founder of NantOmics said the research reiterated the importance of no longer treating cancer by anatomy, but based on biology.
"This research has helped to decode signatures that are based on the diseases molecular profile," Soon-Shiong said. "Beyond treatment implications, this shows the absolute importance of looking at cancer treatment from a biological perspective."
Nature Communications is a peer-reviewed, open-access journal that publishes research on all areas of natural sciences. Papers published by the journal are considered to represent important advances in their fields of research.
Other highlights from the paper:
A UV-damage signature classification predominates in ten of the 32 samples.
Nine of the samples are classified by microsatellite instability (MSI) profiles, which has been shown to be responsive to and is approved for pembrolizumab (Keytruda) use.
The third classification, pauci-mutational sebaceous carcinoma has a more varied signature, but half of which shared a similar mutation pattern in ZNF750 transcription factor in this study.
Neoepitope analysis identified a subset of patients with highly clonal mutation burden that may be most responsive to immunotherapy, and may potentially be strong candidates for treatment with neoepitope vaccines.