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New test utilizes technology based on PacBio's PureTarget sequencing method to uncover genetic causes of disease
BOSTON, July 29, 2025 /PRNewswire/ -- Athena Diagnostics, the specialty neurology business of Quest Diagnostics (NYSE:DGX), a leading provider of diagnostic information services, today announced a new laboratory test service intended to provide insights into genetic causes of ataxia, a group of progressive, degenerative neurological disorders that affect movement or coordination.
The new service is a laboratory developed test that identifies sequences of DNA that repeat many times across a long stretch of the genome. Conventional sequencing technologies are adept at elucidating short DNA sequences but may fail to discern complex or large repeating sequences. Genetic causes of ataxia include expansions of repeating sequences in various genes, which go undetected in many conventional genetic sequencing panels. The new service will be used to confirm initial screening results delivered using polymerase chain reaction (PCR) testing. Healthcare providers may now order the test from Athena Diagnostics.
Under a collaboration agreement with PacBio (NASDAQ:PACB), Quest developed and validated the new lab developed test using specialized technology based on PacBio's PureTarget method. Athena used the technology to develop and validate its ataxia test in Athena's advanced laboratory in Marlborough, Mass. Athena is also exploring options to develop and deploy a test based on PacBio technology to improve carrier screening.
In a study available as a preprint, a PureTarget gene panel was found to identify a specific repeating gene pattern associated with Spinocerebellar ataxia type 10 that may be associated with age of disease onset, information that may help guide care decisions.
