Gns Healthcare landed $23 million in a series D fundraising round led by Cigna Ventures. Cigna's wholly owned corporate venture fund joined Amgen Ventures, Celgene Corp., Echo Health Ventures, Alexandria Venture Investments and Gary Loveman, former Caesar's CEO and Aetna division president, in the latest round.

Hesperos Inc.'s human-on-a-chip in vitro model for the first time successfully predicted human response to two drugs. The multi-organ model provided new insight into the drugs' cardiotoxic effects in a study published in Nature Scientific Reports. The Orlando, Fla.-based company also recently demonstrated that its model could simultaneously measure cancer drug efficacy and off-target toxicity without animal models or human testing.