The researcher accused by the state-backed Riken institute of manipulating and fabricating parts of her purportedly trailblazing study on a new stem cell technique will hold a news conference Wednesday afternoon, her lawyer said Monday.

Haruko Obokata, a researcher at the Riken Center for Developmental Biology, one of the institute's research units, will file an objection Tuesday over her employer's conclusion that she falsified data as the lead author of two papers on so-called STAP cells.

Wednesday's news conference, scheduled to be held at a hotel in Osaka, will be her first public appearance since the young researcher announced her findings in the journal Nature around late January.